From: Hilko Bengen Date: Wed, 24 Apr 2019 08:42:15 +0000 (+0100) Subject: Import nbdkit_1.12.2.orig.tar.gz X-Git-Tag: archive/raspbian/1.12.4-1+rpi1~6 X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=87b6e24a690d172b6838015606b33782ca9dd742;p=nbdkit.git Import nbdkit_1.12.2.orig.tar.gz [dgit import orig nbdkit_1.12.2.orig.tar.gz] --- 87b6e24a690d172b6838015606b33782ca9dd742 diff --git a/.dir-locals.el b/.dir-locals.el new file mode 100644 index 0000000..c9c3aff --- /dev/null +++ b/.dir-locals.el @@ -0,0 +1 @@ +((c-mode . ((indent-tabs-mode . nil)))) diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..16791f1 --- /dev/null +++ b/.gitignore @@ -0,0 +1,127 @@ +*~ +*.1 +*.1.t +*.3 +*.3.t +*.bak +*.cmi +*.cmx +*.la +*.lo +*.log +*.o +*.trs + +.deps +.gdb_history +.libs +Makefile +Makefile.in + +/local* +/nbdkit-*.tar.gz +/nbdkit-*.*/ + +/aclocal.m4 +/autom4te.cache +/common/bitmap/test-bitmap +/common/include/test-byte-swapping +/common/include/test-current-dir-name +/common/include/test-isaligned +/common/include/test-ispowerof2 +/common/include/test-iszero +/common/include/test-minmax +/common/include/test-nextnonzero +/common/include/test-random +/common/include/test-tvdiff +/common/protocol/protostrings.c +/compile +/config.guess +/config.h +/config.h.in +/config.log +/config.status +/config.sub +/configure +/depcomp +/docs/filter-links.pod +/docs/lang-plugin-links.pod +/docs/plugin-links.pod +/fuzzing/sync_dir/ +/html/*.html +/INSTALL +/install-sh +/libtool +/ltmain.sh +/missing +/nbdkit +/plugins/example4/nbdkit-example4-plugin +/plugins/rust/Cargo.lock +/plugins/rust/Cargo.toml +/plugins/rust/target +/plugins/tar/nbdkit-tar-plugin +/podwrapper.pl +/server/nbdkit +/server/nbdkit.pc +/server/synopsis.c +/server/test-utils +/stamp-h1 +/tests/disk +/tests/disk.gz +/tests/disk.xz +/tests/ext2.img +/tests/file-data +/tests/functions.sh +/tests/keys.psk +/tests/offset-data +/tests/partition-disk +/tests/pki +/tests/split1 +/tests/split2 +/tests/split3 +/tests/ssh/authorized_keys +/tests/ssh/id_rsa +/tests/ssh/id_rsa.pub +/tests/ssh/ssh_host_rsa_key +/tests/ssh/ssh_host_rsa_key.pub +/tests/ssh/sshd_config +/tests/stamp-ssh-host-key +/tests/stamp-ssh-user-key +/tests/test-connect +/tests/test-curl +/tests/test-data +/tests/test-delay +/tests/test-error +/tests/test-exit-with-parent +/tests/test-ext2 +/tests/test-file +/tests/test-file-block +/tests/test-gzip +/tests/test-just-filter-header +/tests/test-just-plugin-header +/tests/test-layers +/tests/test-lua +/tests/test-memory +/tests/test-newstyle +/tests/test-nbd +/tests/test-null +/tests/test-ocaml +/tests/test-ocaml-plugin.so +/tests/test-offset +/tests/test-oldstyle +/tests/test-partition +/tests/test-perl +/tests/test-python +/tests/test-random +/tests/test-readahead +/tests/test-ruby +/tests/test-shell +/tests/test-shell.img +/tests/test-socket-activation +/tests/test-split +/tests/test-streaming +/tests/test-tcl +/tests/test-xz +/tests/test-xz-curl +/test-driver +/valgrind/suppressions diff --git a/BENCHMARKING b/BENCHMARKING new file mode 100644 index 0000000..955131c --- /dev/null +++ b/BENCHMARKING @@ -0,0 +1,89 @@ +A guide to benchmarking nbdkit +============================== + + +General comments +---------------- + +* The plugin matters! Different plugins have completely different + uses, implementations and threading models. There is little point + in talking about "the performance of nbdkit" without mentioning what + plugin you are testing. + +* The client matters! Does the client support multi-conn? Does the + client use the oldstyle or newstyle protocol? Has the client been + written with performance in mind? The currently best clients are + (a) the Linux kernel (nbd.ko) (b) qemu. Make sure you are using + recent versions and have multi-conn enabled. + +* Filters affect performance. When benchmarking you should never use + filters unless filters are what you are trying to benchmark. + + +Testing using Linux kernel client and fio +----------------------------------------- + +(1) Install Jens Axboe's fio (Flexible I/O tester) + +https://github.com/axboe/fio + +(2) Create the fio configuation file: + +Create /var/tmp/test.fio containing: + +---------------------------------------------------------------------- +[test] +rw=randrw +size=64m +directory=/var/tmp/nbd +ioengine=libaio +iodepth=4 +direct=1 +numjobs=8 +group_reporting +time_based +runtime=120 +---------------------------------------------------------------------- + +(3) Run nbdkit. + +From the nbdkit source directory: + +rm /tmp/sock +./nbdkit -f -U /tmp/sock memory size=1G + +(4) Loop mount the NBD server: + +modprobe nbd +nbd-client -C 8 -b 512 -unix /tmp/sock /dev/nbd0 +mkfs.xfs -f /dev/nbd0 +mkdir /var/tmp/nbd +mount /dev/nbd0 /var/tmp/nbd + +(5) Run the fio test: + +fio /var/tmp/test.fio + + +Variations +---------- + +* Try turning multi-conn on or off or adjusting the number of + connections. See the nbd-client -C option. + +* Try adjusting the number of fio threads. + +* Run nbdkit under perf: + + perf record -a -g --call-graph=dwarf -- \ + server/nbdkit -f -U /tmp/sock \ + ./plugins/memory/.libs/nbdkit-memory-plugin.so size=1G + +* Use other plugins. nbdkit-file-plugin is an important one to test. + It might also be worth devising a test using a readonly plugin. + + +Future work +----------- + +* Write an NBD I/O engine for fio. diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..16fdec3 --- /dev/null +++ b/LICENSE @@ -0,0 +1,30 @@ +nbdkit +Copyright (C) 2013-2018 Red Hat Inc. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + +* Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + +* Redistributions in binary form must reproduce the above copyright +notice, this list of conditions and the following disclaimer in the +documentation and/or other materials provided with the distribution. + +* Neither the name of Red Hat nor the names of its contributors may be +used to endorse or promote products derived from this software without +specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +SUCH DAMAGE. diff --git a/Makefile.am b/Makefile.am new file mode 100644 index 0000000..8904a74 --- /dev/null +++ b/Makefile.am @@ -0,0 +1,126 @@ +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +ACLOCAL_AMFLAGS = -I m4 + +EXTRA_DIST = \ + BENCHMARKING \ + .dir-locals.el \ + .gitignore \ + html/pod.css \ + LICENSE \ + m4/.gitignore \ + OTHER_PLUGINS \ + scripts/git.orderfile \ + SECURITY + +CLEANFILES += html/*.html + +# NB: This is not the real nbdkit binary. It's a wrapper that allows +# you to run nbdkit from the build directory before it is installed. +noinst_PROGRAMS = nbdkit +nbdkit_SOURCES = wrapper.c server/options.h +nbdkit_CPPFLAGS = \ + -I$(top_srcdir)/server \ + -Dbuilddir=\"$(abs_top_builddir)\" \ + -Dsrcdir=\"$(abs_top_srcdir)\" \ + -DVALGRIND=\"$(VALGRIND)\" +nbdkit_CFLAGS = $(WARNINGS_CFLAGS) +nbdkit_DEPENDENCIES = config.status + +SUBDIRS = \ + bash \ + docs \ + fuzzing \ + valgrind \ + include \ + common/include \ + common/protocol \ + common/utils \ + server + +if HAVE_PLUGINS +SUBDIRS += \ + common/bitmap \ + common/gpt \ + common/regions \ + common/sparse \ + plugins \ + filters +endif + +SUBDIRS += tests + +check-valgrind: + $(MAKE) -C tests check-valgrind + +check-root: + $(MAKE) -C tests check-root + +check-vddk: + $(MAKE) -C tests check-vddk + +#---------------------------------------------------------------------- +# Maintainers only! + +# Check no files are missing from EXTRA_DIST rules, and that all +# generated files have been included in the tarball. (Note you must +# have done 'make dist') +maintainer-check-extra-dist: + @zcat $(PACKAGE_NAME)-$(VERSION).tar.gz | tar tf - | sort | \ + sed 's,^$(PACKAGE_NAME)-$(VERSION)/,,' > tarfiles + @git ls-files | \ + sort > gitfiles + @comm -13 tarfiles gitfiles > comm-out + @echo Checking for differences between EXTRA_DIST and git ... + @cat comm-out + @[ ! -s comm-out ] + @rm tarfiles gitfiles comm-out + @echo PASS: EXTRA_DIST tests + +# Commit everything in the current directory and set the commit +# message to the current version number. +maintainer-commit: + git commit -a -m "Version $(VERSION)." + +# Tag HEAD with the current version. +maintainer-tag: + git tag -a v$(VERSION) -m "Version $(VERSION)." -f + +# Run tests and display the time taken to run each test, which is +# useful for diagnosing slow-running tests. +# +# Try also setting LIBGUESTFS_BACKEND_SETTINGS=force_tcg which +# emulates what happens in Koji. +maintainer-check-times: + make check -j1 | ts -i diff --git a/Makefile.in b/Makefile.in new file mode 100644 index 0000000..a8a5d12 --- /dev/null +++ b/Makefile.in @@ -0,0 +1,1144 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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(Note you must +# have done 'make dist') +maintainer-check-extra-dist: + @zcat $(PACKAGE_NAME)-$(VERSION).tar.gz | tar tf - | sort | \ + sed 's,^$(PACKAGE_NAME)-$(VERSION)/,,' > tarfiles + @git ls-files | \ + sort > gitfiles + @comm -13 tarfiles gitfiles > comm-out + @echo Checking for differences between EXTRA_DIST and git ... + @cat comm-out + @[ ! -s comm-out ] + @rm tarfiles gitfiles comm-out + @echo PASS: EXTRA_DIST tests + +# Commit everything in the current directory and set the commit +# message to the current version number. +maintainer-commit: + git commit -a -m "Version $(VERSION)." + +# Tag HEAD with the current version. +maintainer-tag: + git tag -a v$(VERSION) -m "Version $(VERSION)." -f + +# Run tests and display the time taken to run each test, which is +# useful for diagnosing slow-running tests. +# +# Try also setting LIBGUESTFS_BACKEND_SETTINGS=force_tcg which +# emulates what happens in Koji. +maintainer-check-times: + make check -j1 | ts -i + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/OTHER_PLUGINS b/OTHER_PLUGINS new file mode 100644 index 0000000..b8dc68b --- /dev/null +++ b/OTHER_PLUGINS @@ -0,0 +1,13 @@ +Have you written an nbdkit plugin that you're willing to share? +Email to get it added to this list. + +* XVA (XenServer Virtual Appliance) + +This simple plugin written in Perl lets you read these files and +reexport them as NBD. It does not require that the XVA is unpacked: +https://lists.gnu.org/archive/html/qemu-devel/2017-11/msg02971.html +https://lists.gnu.org/archive/html/qemu-devel/2017-11/plHKJ062x5Uo.pl + +The whole thread is worth reading because several different approaches +to dealing with XVA files are presented: +https://lists.gnu.org/archive/html/qemu-devel/2017-11/threads.html#02839 diff --git a/README b/README new file mode 100644 index 0000000..597d391 --- /dev/null +++ b/README @@ -0,0 +1,257 @@ +NBD — Network Block Device — is a protocol for accessing Block Devices +(hard disks and disk-like things) over a Network. + +nbdkit is a toolkit for creating NBD servers. + +The key features are: + + * Multithreaded NBD server written in C with good performance. + + * Minimal dependencies for the basic server. + + * Liberal license (BSD) allows nbdkit to be linked to proprietary + libraries or included in proprietary code. + + * Well-documented, simple plugin API with a stable ABI guarantee. + Lets you export “unconventional” block devices easily. + + * You can write plugins in C, Lua, Perl, Python, OCaml, Ruby, Rust, + shell script or Tcl. + + * Filters can be stacked in front of plugins to transform the output. + +For documentation, see the ‘docs/’ directory. + +For plugins, examples and filters, see the ‘plugins/’ and ‘filters/’ +directories. + +LICENSE +======= + +This software is copyright (C) Red Hat Inc. and licensed under a BSD +license. See ‘LICENSE’ for details. + +BUILDING FROM SOURCE +==================== + +Requirements +------------ + +To build the basic server and some plugins nbdkit needs nothing except +Linux, FreeBSD or OpenBSD, and: + + - GCC or Clang + + - bash + + - GNU make + +Although it is possible to build without it, it’s recommended to +enable TLS (authentication and encryption) support for which you will +need: + + - gnutls >= 3.3.0 + +Optional dependencies +--------------------- + +To build the man pages, you will optionally need to install: + + - Perl + + - Pod::Man and Pod::Simple (Perl library) + +For SELinux socket labelling support: + + - libselinux + +For the gzip plugin: + + - zlib + +For the xz filter: + + - liblzma + +For the curl (HTTP/FTP) plugin: + + - libcurl + +For the ssh plugin: + + - libssh >= 0.8.0 + (this is a different library from libssh2 - that will not work) + +For the iso plugin: + + - genisoimage or mkisofs + +For the floppy plugin: + + - iconv (on Linux this is built into glibc, on other systems + it may be a separate library) + +For the libvirt plugin: + + - libvirt + +For the libguestfs plugin, and to run parts of the test suite: + + - libguestfs + + - guestfish (from libguestfs) + +For the ext2 plugin: + + - ext2fs + + - com_err + +For the linuxdisk plugin: + + - mke2fs >= 1.42.10 (from e2fsprogs) + +For the Perl, example4 and tar plugins: + + - perl interpreter + + - perl development libraries + + - perl module ExtUtils::Embed + +For the Python plugin: + + - python interpreter + (either version 2 or 3 may be used) + + - python development libraries + +For the OCaml plugin: + + - OCaml >= 4.02.2 + +For the Tcl plugin: + + - Tcl development library and headers + +For the Lua plugin: + + - Lua development library and headers + +For the Rust plugin: + + - cargo (other dependencies will be downloaded at build time) + +For bash tab completion: + + - bash-completion >= 1.99 + +To test for memory leaks (‘make check-valgrind’): + + - valgrind program and development headers + +For non-essential enhancements to the test suite: + + - ip, ss (from iproute package) + + - jq + + - losetup (from util-linux package) + + - mke2fs (from e2fsprogs) + + - qemu-img, qemu-io, qemu-nbd (usually shipped with qemu) + + - sfdisk (from util-linux) + + - socat + + - ssh-keygen + + - stat (from coreutils) + +Building +-------- + + To build from tarball: To build from git: + ---------------------- ------------------ + autoreconf -i + ./configure ./configure + make make + make check make check + +To run nbdkit from the source directory, use the top level ./nbdkit +wrapper. It will run nbdkit and plugins from the locally compiled +directory: + + $ ./nbdkit example1 -f -v + ./server/nbdkit ./plugins/example1/.libs/nbdkit-example1-plugin.so -f -v + [etc] + +Optionally run this command as root to install everything: + + make install + +Python +------ + +By default nbdkit uses the Python version of the Python interpreter +called “python” on the current $PATH. To use another version of +Python you may need to set the PYTHON variable when configuring. For +example: + + ./configure PYTHON=/usr/bin/python3 + +Running the tests +----------------- + +You will need to install libguestfs to run most of the test suite: + + make check + +The test suite is fairly comprehensive. It runs the newly built +nbdkit + plugins as a captive process, and tests them using +libguestfs. If there is a failure, look at the corresponding +‘tests/*.log’ file for debug information. + +A few tests require root privileges, and are skipped by default. To +run them you must do: + + sudo make check-root + +If you have the proprietary VDDK library, you can test +nbdkit-vddk-plugin against the library like this: + + make check-vddk vddkdir=vmware-vix-disklib-distrib + +DOWNLOAD TARBALLS +================= + +Tarballs are available from: +http://libguestfs.org/download/nbdkit + +DEVELOPERS +========== + +Install the valgrind program and development headers. + +Use: + + ./configure --enable-gcc-warnings --enable-valgrind + +When testing use: + + make check + make check-valgrind + +For development ideas, see the TODO file. + +The upstream git repository is: +https://github.com/libguestfs/nbdkit + +Please send patches to the libguestfs mailing list: +https://www.redhat.com/mailman/listinfo/libguestfs + +For further information, see: +http://libguestfs.org/ +https://github.com/NetworkBlockDevice/nbd/blob/master/doc/proto.md diff --git a/SECURITY b/SECURITY new file mode 100644 index 0000000..52e9dee --- /dev/null +++ b/SECURITY @@ -0,0 +1,9 @@ +If you think you've found a serious or potential security bug that you +don't want to report on a public mailing list, then send email to both + and . + +Make it clear in the email Subject line that it's a serious or +security-related bug in nbdkit. + +You can also sign and/or encrypt messages using our GPG public keys +available on the usual keyservers. diff --git a/TODO b/TODO new file mode 100644 index 0000000..3285120 --- /dev/null +++ b/TODO @@ -0,0 +1,224 @@ +To-do list for nbdkit +====================================================================== + +General ideas for improvements +------------------------------ + +* Listen on specific interfaces or protocols (eg. only IPv6). + +* Performance - measure and improve it. + +* Exit on last connection (the default behaviour of qemu-nbd unless + you use -t). + +* Limit number of incoming connections (like qemu-nbd -e). + +* For parallel plugins, only create threads on demand from parallel + client requests, rather than pre-creating all threads at connection + time, up to the thread pool size limit. Of course, once created, a + thread is reused as possible until the connection closes. + +* Async callbacks. The current parallel support requires one thread + per pending message; a solution with fewer threads would split + low-level code between request and response, where the callback has + to inform nbdkit when the response is ready: + https://www.redhat.com/archives/libguestfs/2018-January/msg00149.html + +* More NBD protocol features. The only currently missing features are + structured replies for sparse reads, and online resize. + +* Add a callback to let plugins request minimum alignment for the + buffer to pread/pwrite; useful for a plugin utilizing O_DIRECT or + other situation where pre-aligned buffers are more efficient. + Ideally, a blocksize filter would honor strict alignment below and + advertise loose alignment above; all other filters (particularly + ones like offset) can fail to initialize if they can't guarantee + strict alignment and don't want to deal with bounce buffers. + +* Add per-connection caching of .can_FOO callbacks (we already have + some: .can_write is only called once, but .can_fua is called on + every request with the FUA flag set). + +* Test that zero-length read/write/extents requests behave sanely + (NBD protocol says they are unspecified). + +* If a client negotiates structured replies, and issues a read/extents + call that exceeds EOF (qemu 3.1 is one such client, when nbdkit + serves non-sector-aligned images), return the valid answer for the + subset of the request in range and then NBD_REPLY_TYPE_ERROR_OFFSET + for the tail, rather than erroring the entire request. + +* Test and document how to run nbdkit from inetd and xinetd in + nbdkit-service(1). + +* Validate that requests which are forwarded by filters are not out of + range. This is harder than it looks because filters don't "know" + the size of the layer below (unless they call .get_size, but that + might be expensive). This gets particularly tricky if you assume + that .get_size cannot be cached and/or might change per-connection, + although the rest of nbdkit doesn't behave well in that case either. + +* Similarly validate the filters don't forward write requests to + read-only plugins. + +* Audit the code base to get rid of strerror() usage (the function is + not thread-safe); however, using geterror_r() can be tricky as it + has a different signature in glibc than in POSIX. + +* Teach nbdkit_error() to have smart newline appending (for existing + inconsistent clients), while fixing internal uses to omit the + newline. Commit ef4f72ef has some ideas on smart newlines, but that + should probably be factored into a utility function. + +* We may need a way to lock nbdkit into memory and adjust the OOM + killer score. See this LKML discussion: + https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1933394.html + and also look at the implementation of the -swap option in + nbd-client. + +Suggestions for plugins +----------------------- + +Note: qemu supports other formats such as libnfs, iscsi, gluster and +ceph/rbd, and while similar plugins could be written for nbdkit there +is no compelling reason unless the result is better than qemu-nbd. +For the majority of users it would be better if they were directed to +qemu-nbd for these use cases. + +* XVA files + + https://lists.gnu.org/archive/html/qemu-devel/2017-11/msg02971.html + is a partial solution but it needs cleaning up. + +nbdkit-nbd-plugin could use enhancements: + +* FUA passthrough, rather than extra FLUSH calls. For this, .can_fua + must be exposed to plugins (not just filters), and needs to be + tri-state rather than just bool. + +* Enable client-side TLS (right now, the nbd plugin allows us to + support an encrypted client connecting to a plain server; but we + would need TLS to support a plain client connecting to an encrypted + server). + +* Support for connecting to a server over IP rather than just Unix + sockets. + +nbdkit-floppy-plugin: + +* Add boot sector support. In theory this is easy (eg. using + SYSLINUX), but the practical reality of making a fully bootable + floppy is rather more complex. + +* Add multiple dir merging. + +nbdkit-linuxdisk-plugin: + +* Add multiple dir merging (in e2fsprogs mke2fs). + +Suggestions for filters +----------------------- + +* tar plugin should really be a filter + +* gzip plugin should really be a filter + +* libarchive could be used to implement a general tar/zip filter + +* LUKS encrypt/decrypt filter, bonus points if compatible with qemu + LUKS-encrypted disk images + +* masking plugin features for testing clients (see 'nozero' and 'fua' + filters for examples) + +* nbdkit-cache-filter should handle ENOSPC errors automatically by + reclaiming blocks from the cache + +nbdkit-rate-filter: + +* allow other kinds of traffic shaping such as VBR + +* limit traffic per client (ie. per IP address) + +* split large requests to avoid long, lumpy sleeps when request size + is much larger than rate limit + +Filters for security +-------------------- + +Things like blacklisting or whitelisting IP addresses can be done +using external wrappers (TCP wrappers, systemd). + +However it might be nice to have a configurable filter for preventing +valid but not sensible requests. The server already filters invalid +requests. This would be like seccomp, and could be implemented using +an eBPF-based parser. Unfortunately actual eBPF is difficult to use +for userspace processes. The "standard" isn't solidly defined - the +Linux kernel implementation is the standard - and Linux has by far the +best implementation, particularly around bytecode verification and +JITting. There is a userspace VM (ubpf) but it has very limited +capabilities compared to Linux. + +Composing nbdkit +---------------- + +Filters allow certain types of composition, but others would not be +possible, for example RAIDing over multiple nbd sources. Because the +plugin API limits us to loading a single plugin to the server, the +best way to do this (and the most robust) is to compose multiple +nbdkit processes. + +The nbd plugin (plugins/nbd) already contains an NBD client, so we +could factor this client out and make it available to other plugins to +use. + +Build-related +------------- + +* Figure out how to get 'make distcheck' working. VPATH builds are + working, but various pkg-config results that try to stick + bash-completion and ocaml add-ons into their system-wide home do + not play nicely with --prefix builds for a non-root user. + +* Port to Windows. + +Rust plugins +------------ + +* Consider supporting a more idiomatic style for writing Rust plugins. + +* Better documentation. + +* Add tests. + +* There is no attempt to ‘make install’ or otherwise package the + crate. Since it looks as if Rust code is normally distributed as + source it's not clear what that would even mean. + +V3 plugin protocol +------------------ + +From time to time we may update the plugin protocol. This section +collects ideas for things which might be fixed in the next version of +the protocol. + +Note that we keep the old protocol(s) around so that source +compatibility is retained. Plugins must opt in to the new protocol +using ‘#define NBDKIT_API_VERSION ’. + +* All methods taking a ‘count’ field should be uint64_t (instead of + uint32_t). Although the NBD protocol does not support 64 bit + lengths, it might do in future. + +* pread could be changed to allow it to support Structured Replies + (SRs). This could mean allowing it to return partial data, holes, + zeroes, etc. For a client that negotiates SR coupled with a plugin + that supports .extents, the v2 protocol would allow us to at least + synthesize NBD_REPLY_TYPE_OFFSET_HOLE for less network traffic, even + though the plugin will still have to fully populate the .pread + buffer; the v3 protocol should make sparse reads more direct. + +* Parameters should be systematized so that they aren't just (key, + value) strings. nbdkit should know the possible keys for the plugin + and filters, and the type of the values, and both check and parse + them for the plugin. diff --git a/aclocal.m4 b/aclocal.m4 new file mode 100644 index 0000000..74bc4db --- /dev/null +++ b/aclocal.m4 @@ -0,0 +1,1486 @@ +# generated automatically by aclocal 1.16.1 -*- Autoconf -*- + +# Copyright (C) 1996-2018 Free Software Foundation, Inc. + +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])]) +m4_ifndef([AC_AUTOCONF_VERSION], + [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl +m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],, +[m4_warning([this file was generated for autoconf 2.69. +You have another version of autoconf. It may work, but is not guaranteed to. +If you have problems, you may need to regenerate the build system entirely. +To do so, use the procedure documented by the package, typically 'autoreconf'.])]) + +# pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*- +# serial 11 (pkg-config-0.29.1) + +dnl Copyright © 2004 Scott James Remnant . +dnl Copyright © 2012-2015 Dan Nicholson +dnl +dnl This program is free software; you can redistribute it and/or modify +dnl it under the terms of the GNU General Public License as published by +dnl the Free Software Foundation; either version 2 of the License, or +dnl (at your option) any later version. +dnl +dnl This program is distributed in the hope that it will be useful, but +dnl WITHOUT ANY WARRANTY; without even the implied warranty of +dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +dnl General Public License for more details. +dnl +dnl You should have received a copy of the GNU General Public License +dnl along with this program; if not, write to the Free Software +dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA +dnl 02111-1307, USA. +dnl +dnl As a special exception to the GNU General Public License, if you +dnl distribute this file as part of a program that contains a +dnl configuration script generated by Autoconf, you may include it under +dnl the same distribution terms that you use for the rest of that +dnl program. + +dnl PKG_PREREQ(MIN-VERSION) +dnl ----------------------- +dnl Since: 0.29 +dnl +dnl Verify that the version of the pkg-config macros are at least +dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's +dnl installed version of pkg-config, this checks the developer's version +dnl of pkg.m4 when generating configure. +dnl +dnl To ensure that this macro is defined, also add: +dnl m4_ifndef([PKG_PREREQ], +dnl [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])]) +dnl +dnl See the "Since" comment for each macro you use to see what version +dnl of the macros you require. +m4_defun([PKG_PREREQ], +[m4_define([PKG_MACROS_VERSION], [0.29.1]) +m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1, + [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])]) +])dnl PKG_PREREQ + +dnl PKG_PROG_PKG_CONFIG([MIN-VERSION]) +dnl ---------------------------------- +dnl Since: 0.16 +dnl +dnl Search for the pkg-config tool and set the PKG_CONFIG variable to +dnl first found in the path. Checks that the version of pkg-config found +dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is +dnl used since that's the first version where most current features of +dnl pkg-config existed. +AC_DEFUN([PKG_PROG_PKG_CONFIG], +[m4_pattern_forbid([^_?PKG_[A-Z_]+$]) +m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$]) +m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$]) +AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility]) +AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path]) +AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path]) + +if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then + AC_PATH_TOOL([PKG_CONFIG], [pkg-config]) +fi +if test -n "$PKG_CONFIG"; then + _pkg_min_version=m4_default([$1], [0.9.0]) + AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version]) + if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + PKG_CONFIG="" + fi +fi[]dnl +])dnl PKG_PROG_PKG_CONFIG + +dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) +dnl ------------------------------------------------------------------- +dnl Since: 0.18 +dnl +dnl Check to see whether a particular set of modules exists. Similar to +dnl PKG_CHECK_MODULES(), but does not set variables or print errors. +dnl +dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG]) +dnl only at the first occurence in configure.ac, so if the first place +dnl it's called might be skipped (such as if it is within an "if", you +dnl have to call PKG_CHECK_EXISTS manually +AC_DEFUN([PKG_CHECK_EXISTS], +[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl +if test -n "$PKG_CONFIG" && \ + AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then + m4_default([$2], [:]) +m4_ifvaln([$3], [else + $3])dnl +fi]) + +dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES]) +dnl --------------------------------------------- +dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting +dnl pkg_failed based on the result. +m4_define([_PKG_CONFIG], +[if test -n "$$1"; then + pkg_cv_[]$1="$$1" + elif test -n "$PKG_CONFIG"; then + PKG_CHECK_EXISTS([$3], + [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes ], + [pkg_failed=yes]) + else + pkg_failed=untried +fi[]dnl +])dnl _PKG_CONFIG + +dnl _PKG_SHORT_ERRORS_SUPPORTED +dnl --------------------------- +dnl Internal check to see if pkg-config supports short errors. +AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED], +[AC_REQUIRE([PKG_PROG_PKG_CONFIG]) +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi[]dnl +])dnl _PKG_SHORT_ERRORS_SUPPORTED + + +dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], +dnl [ACTION-IF-NOT-FOUND]) +dnl -------------------------------------------------------------- +dnl Since: 0.4.0 +dnl +dnl Note that if there is a possibility the first call to +dnl PKG_CHECK_MODULES might not happen, you should be sure to include an +dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac +AC_DEFUN([PKG_CHECK_MODULES], +[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl +AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl +AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl + +pkg_failed=no +AC_MSG_CHECKING([for $1]) + +_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2]) +_PKG_CONFIG([$1][_LIBS], [libs], [$2]) + +m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS +and $1[]_LIBS to avoid the need to call pkg-config. +See the pkg-config man page for more details.]) + +if test $pkg_failed = yes; then + AC_MSG_RESULT([no]) + _PKG_SHORT_ERRORS_SUPPORTED + if test $_pkg_short_errors_supported = yes; then + $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1` + else + $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD + + m4_default([$4], [AC_MSG_ERROR( +[Package requirements ($2) were not met: + +$$1_PKG_ERRORS + +Consider adjusting the PKG_CONFIG_PATH environment variable if you +installed software in a non-standard prefix. + +_PKG_TEXT])[]dnl + ]) +elif test $pkg_failed = untried; then + AC_MSG_RESULT([no]) + m4_default([$4], [AC_MSG_FAILURE( +[The pkg-config script could not be found or is too old. Make sure it +is in your PATH or set the PKG_CONFIG environment variable to the full +path to pkg-config. + +_PKG_TEXT + +To get pkg-config, see .])[]dnl + ]) +else + $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS + $1[]_LIBS=$pkg_cv_[]$1[]_LIBS + AC_MSG_RESULT([yes]) + $3 +fi[]dnl +])dnl PKG_CHECK_MODULES + + +dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], +dnl [ACTION-IF-NOT-FOUND]) +dnl --------------------------------------------------------------------- +dnl Since: 0.29 +dnl +dnl Checks for existence of MODULES and gathers its build flags with +dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags +dnl and VARIABLE-PREFIX_LIBS from --libs. +dnl +dnl Note that if there is a possibility the first call to +dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to +dnl include an explicit call to PKG_PROG_PKG_CONFIG in your +dnl configure.ac. +AC_DEFUN([PKG_CHECK_MODULES_STATIC], +[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl +_save_PKG_CONFIG=$PKG_CONFIG +PKG_CONFIG="$PKG_CONFIG --static" +PKG_CHECK_MODULES($@) +PKG_CONFIG=$_save_PKG_CONFIG[]dnl +])dnl PKG_CHECK_MODULES_STATIC + + +dnl PKG_INSTALLDIR([DIRECTORY]) +dnl ------------------------- +dnl Since: 0.27 +dnl +dnl Substitutes the variable pkgconfigdir as the location where a module +dnl should install pkg-config .pc files. By default the directory is +dnl $libdir/pkgconfig, but the default can be changed by passing +dnl DIRECTORY. The user can override through the --with-pkgconfigdir +dnl parameter. +AC_DEFUN([PKG_INSTALLDIR], +[m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])]) +m4_pushdef([pkg_description], + [pkg-config installation directory @<:@]pkg_default[@:>@]) +AC_ARG_WITH([pkgconfigdir], + [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],, + [with_pkgconfigdir=]pkg_default) +AC_SUBST([pkgconfigdir], [$with_pkgconfigdir]) +m4_popdef([pkg_default]) +m4_popdef([pkg_description]) +])dnl PKG_INSTALLDIR + + +dnl PKG_NOARCH_INSTALLDIR([DIRECTORY]) +dnl -------------------------------- +dnl Since: 0.27 +dnl +dnl Substitutes the variable noarch_pkgconfigdir as the location where a +dnl module should install arch-independent pkg-config .pc files. By +dnl default the directory is $datadir/pkgconfig, but the default can be +dnl changed by passing DIRECTORY. The user can override through the +dnl --with-noarch-pkgconfigdir parameter. +AC_DEFUN([PKG_NOARCH_INSTALLDIR], +[m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])]) +m4_pushdef([pkg_description], + [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@]) +AC_ARG_WITH([noarch-pkgconfigdir], + [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],, + [with_noarch_pkgconfigdir=]pkg_default) +AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir]) +m4_popdef([pkg_default]) +m4_popdef([pkg_description]) +])dnl PKG_NOARCH_INSTALLDIR + + +dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE, +dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) +dnl ------------------------------------------- +dnl Since: 0.28 +dnl +dnl Retrieves the value of the pkg-config variable for the given module. +AC_DEFUN([PKG_CHECK_VAR], +[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl +AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl + +_PKG_CONFIG([$1], [variable="][$3]["], [$2]) +AS_VAR_COPY([$1], [pkg_cv_][$1]) + +AS_VAR_IF([$1], [""], [$5], [$4])dnl +])dnl PKG_CHECK_VAR + +dnl PKG_WITH_MODULES(VARIABLE-PREFIX, MODULES, +dnl [ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND], +dnl [DESCRIPTION], [DEFAULT]) +dnl ------------------------------------------ +dnl +dnl Prepare a "--with-" configure option using the lowercase +dnl [VARIABLE-PREFIX] name, merging the behaviour of AC_ARG_WITH and +dnl PKG_CHECK_MODULES in a single macro. +AC_DEFUN([PKG_WITH_MODULES], +[ +m4_pushdef([with_arg], m4_tolower([$1])) + +m4_pushdef([description], + [m4_default([$5], [build with ]with_arg[ support])]) + +m4_pushdef([def_arg], [m4_default([$6], [auto])]) +m4_pushdef([def_action_if_found], [AS_TR_SH([with_]with_arg)=yes]) +m4_pushdef([def_action_if_not_found], [AS_TR_SH([with_]with_arg)=no]) + +m4_case(def_arg, + [yes],[m4_pushdef([with_without], [--without-]with_arg)], + [m4_pushdef([with_without],[--with-]with_arg)]) + +AC_ARG_WITH(with_arg, + AS_HELP_STRING(with_without, description[ @<:@default=]def_arg[@:>@]),, + [AS_TR_SH([with_]with_arg)=def_arg]) + +AS_CASE([$AS_TR_SH([with_]with_arg)], + [yes],[PKG_CHECK_MODULES([$1],[$2],$3,$4)], + [auto],[PKG_CHECK_MODULES([$1],[$2], + [m4_n([def_action_if_found]) $3], + [m4_n([def_action_if_not_found]) $4])]) + +m4_popdef([with_arg]) +m4_popdef([description]) +m4_popdef([def_arg]) + +])dnl PKG_WITH_MODULES + +dnl PKG_HAVE_WITH_MODULES(VARIABLE-PREFIX, MODULES, +dnl [DESCRIPTION], [DEFAULT]) +dnl ----------------------------------------------- +dnl +dnl Convenience macro to trigger AM_CONDITIONAL after PKG_WITH_MODULES +dnl check._[VARIABLE-PREFIX] is exported as make variable. +AC_DEFUN([PKG_HAVE_WITH_MODULES], +[ +PKG_WITH_MODULES([$1],[$2],,,[$3],[$4]) + +AM_CONDITIONAL([HAVE_][$1], + [test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"]) +])dnl PKG_HAVE_WITH_MODULES + +dnl PKG_HAVE_DEFINE_WITH_MODULES(VARIABLE-PREFIX, MODULES, +dnl [DESCRIPTION], [DEFAULT]) +dnl ------------------------------------------------------ +dnl +dnl Convenience macro to run AM_CONDITIONAL and AC_DEFINE after +dnl PKG_WITH_MODULES check. 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IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = README + +if HAVE_BASH_COMPLETION + +dist_bashcomp_DATA = nbdkit + +endif diff --git a/bash/Makefile.in b/bash/Makefile.in new file mode 100644 index 0000000..f3e2a5b --- /dev/null +++ b/bash/Makefile.in @@ -0,0 +1,646 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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\ + uninstall-am uninstall-dist_bashcompDATA + +.PRECIOUS: Makefile + + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/bash/README b/bash/README new file mode 100644 index 0000000..21a4f71 --- /dev/null +++ b/bash/README @@ -0,0 +1,8 @@ +This directory contains the scripts for tab-completing commands in +bash. Note these new-style demand-loaded scripts require +bash-completion >= 1.99. + +Tip: To test the bash completions without having to install them, +simply start a new shell and do: + + source ./bash/nbdkit; PATH=$PWD:$PATH diff --git a/bash/nbdkit b/bash/nbdkit new file mode 100644 index 0000000..c23314a --- /dev/null +++ b/bash/nbdkit @@ -0,0 +1,112 @@ +# nbdkit bash completion script -*- shell-script -*- +# Copyright (C) 2010-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +_nbdkit_list_plugins () +{ + local plugindir + plugindir="$( + nbdkit --dump-config | grep ^plugindir= | sed 's/^plugindir=//' + )" + ls -1 "$plugindir" | sed 's/^nbdkit-//' | sed 's/-plugin.*//' +} + +_nbdkit_list_filters () +{ + local filterdir + filterdir="$( + nbdkit --dump-config | grep ^filterdir= | sed 's/^filterdir=//' + )" + ls -1 "$filterdir" | sed 's/^nbdkit-//' | sed 's/-filter.*//' +} + +# This handler function is called when the user presses tab. +_nbdkit () +{ + local cur prev words cword split + local shortopts longopts plugin plugins filters args i + + _init_completion -s || return + + # Did we get the plugin name yet? + # This is only a heuristic because it can be confused by + # long opt parameters with an arguments. XXX + plugin= + for (( i=1; i < ${#words[@]}; ++i)) ; do + if [[ "${words[i]}" =~ ^[a-zA-Z0-9]+$ ]]; then + plugin="${words[i]}" + break + fi + done + + # Previous item on the current line is a completable flag or plugin name? + case "$prev" in + --filter) + filters="$(_nbdkit_list_filters)" + COMPREPLY=( $(compgen -W "$filters" "$cur") ) + return ;; + --tls) + COMPREPLY=( $(compgen -W "off on require" "$cur") ) + return ;; + # Could complete -u and -g options too. XXX + esac + + # Current item is an option we can expand? + case "$cur" in + --*) + longopts="$(nbdkit --long-options)" + COMPREPLY=( $(compgen -W "$longopts" -- "$cur") ) + return ;; + -*) + shortopts="$(nbdkit --short-options)" + longopts="$(nbdkit --long-options)" + COMPREPLY=( $(compgen -W "$shortopts $longopts" -- "$cur") ) + return ;; + *) + if [ "$plugin" = "" ] || [ "$plugin" = "$cur" ]; then + # Complete plugin name. + plugins="$(_nbdkit_list_plugins)" + COMPREPLY=( $(compgen -W "$plugins" "$cur") ) + return + else + # Complete plugin args. + args="$( + nbdkit $plugin --help 2>/dev/null | + grep -E '^[-a-z0-9]+=' | sed 's/=.*/=/' + )" + COMPREPLY=( $(compgen -W "$args" "$cur") ) + return + fi + ;; + esac +} + +# Install the handler function. +complete -o default -F _nbdkit nbdkit diff --git a/common-rules.mk b/common-rules.mk new file mode 100644 index 0000000..9fbd370 --- /dev/null +++ b/common-rules.mk @@ -0,0 +1,35 @@ +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +plugindir = $(libdir)/nbdkit/plugins +filterdir = $(libdir)/nbdkit/filters + +CLEANFILES = *~ *.cmi *.cmx *.cmxa *.so diff --git a/common/bitmap/Makefile.am b/common/bitmap/Makefile.am new file mode 100644 index 0000000..12d548f --- /dev/null +++ b/common/bitmap/Makefile.am @@ -0,0 +1,55 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +noinst_LTLIBRARIES = libbitmap.la + +libbitmap_la_SOURCES = \ + bitmap.c \ + bitmap.h +libbitmap_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include +libbitmap_la_CFLAGS = \ + $(WARNINGS_CFLAGS) + +# Unit tests. + +TESTS = test-bitmap +check_PROGRAMS = test-bitmap + +test_bitmap_SOURCES = test-bitmap.c bitmap.c bitmap.h +test_bitmap_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include +test_bitmap_CFLAGS = \ + $(WARNINGS_CFLAGS) diff --git a/common/bitmap/Makefile.in b/common/bitmap/Makefile.in new file mode 100644 index 0000000..3d6ee9f --- /dev/null +++ b/common/bitmap/Makefile.in @@ -0,0 +1,1201 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include + +#include + +#include "bitmap.h" +#include "rounding.h" +#include "nextnonzero.h" + +int +bitmap_resize (struct bitmap *bm, uint64_t new_size) +{ + uint8_t *new_bitmap; + const size_t old_bm_size = bm->size; + uint64_t new_bm_size_u64; + size_t new_bm_size; + + new_bm_size_u64 = DIV_ROUND_UP (new_size, + bm->blksize * UINT64_C(8) / bm->bpb); + if (new_bm_size_u64 > SIZE_MAX) { + nbdkit_error ("bitmap too large for this architecture"); + return -1; + } + new_bm_size = (size_t) new_bm_size_u64; + + new_bitmap = realloc (bm->bitmap, new_bm_size); + if (new_bitmap == NULL) { + nbdkit_error ("realloc: %m"); + return -1; + } + bm->bitmap = new_bitmap; + bm->size = new_bm_size; + if (old_bm_size < new_bm_size) + memset (&bm->bitmap[old_bm_size], 0, new_bm_size-old_bm_size); + + nbdkit_debug ("bitmap resized to %zu bytes", new_bm_size); + + return 0; +} + +int64_t +bitmap_next (const struct bitmap *bm, uint64_t blk) +{ + uint64_t limit = bm->size * bm->ibpb; + const uint8_t *p; + + /* Align to the next byte boundary. */ + for (; blk < limit && (blk & (bm->ibpb-1)) != 0; ++blk) { + if (bitmap_get_blk (bm, blk, 0) != 0) + return blk; + } + if (blk == limit) + return -1; + + /* Now we're at a byte boundary we can use a fast string function to + * find the next non-zero byte. + */ + p = &bm->bitmap[blk >> (3 - bm->bitshift)]; + p = (const uint8_t *) next_non_zero ((const char *) p, + &bm->bitmap[bm->size] - p); + if (p == NULL) + return -1; + + /* Now check the non-zero byte to find out which bit (ie. block) is set. */ + blk = (p - bm->bitmap) << (3 - bm->bitshift); + for (; blk < limit; ++blk) { + if (bitmap_get_blk (bm, blk, 0) != 0) + return blk; + } + + /* Should never be reached. */ + abort (); +} diff --git a/common/bitmap/bitmap.h b/common/bitmap/bitmap.h new file mode 100644 index 0000000..d80cdfe --- /dev/null +++ b/common/bitmap/bitmap.h @@ -0,0 +1,183 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* This is a very simple structure for creating a bitmap associated + * with a virtual disk. 1, 2, 4 or 8 bits can be associated with each + * block of the disk. You can choose the number of bits and block + * size when creating the bitmap. Entries in the bitmap are + * initialized to 0. + */ + +#ifndef NBDKIT_BITMAP_H +#define NBDKIT_BITMAP_H + +#include +#include +#include + +#include + +#include "ispowerof2.h" + +/* This is the bitmap structure. */ +struct bitmap { + unsigned blksize; /* Block size. */ + uint8_t bpb; /* Bits per block (1, 2, 4, 8 only). */ + /* bpb = 1 << bitshift ibpb = 8 / bpb + 1 0 8 + 2 1 4 + 4 2 2 + 8 3 1 + */ + uint8_t bitshift, ibpb; + + uint8_t *bitmap; /* The bitmap. */ + size_t size; /* Size of bitmap in bytes. */ +}; + +static inline void __attribute__((__nonnull__ (1))) +bitmap_init (struct bitmap *bm, unsigned blksize, unsigned bpb) +{ + assert (is_power_of_2 (blksize)); + bm->blksize = blksize; + + /* bpb can be 1, 2, 4 or 8 only. */ + bm->bpb = bpb; + switch (bpb) { + case 1: bm->bitshift = 0; break; + case 2: bm->bitshift = 1; break; + case 4: bm->bitshift = 2; break; + case 8: bm->bitshift = 3; break; + default: abort (); + } + bm->ibpb = 8/bpb; + + bm->bitmap = NULL; + bm->size = 0; +} + +/* Only frees the bitmap itself, since it is assumed that the struct + * bitmap is statically allocated. + */ +static inline void +bitmap_free (struct bitmap *bm) +{ + if (bm) + free (bm->bitmap); +} + +/* Resize the bitmap to the virtual disk size in bytes. + * Returns -1 on error, setting nbdkit_error. + */ +extern int bitmap_resize (struct bitmap *bm, uint64_t new_size) + __attribute__((__nonnull__ (1))); + +/* Clear the bitmap (set everything to zero). */ +static inline void __attribute__((__nonnull__ (1))) +bitmap_clear (struct bitmap *bm) +{ + memset (bm->bitmap, 0, bm->size); +} + +/* This macro calculates the byte offset in the bitmap and which + * bit/mask we are addressing within that byte. + * + * bpb blk_offset blk_bit mask + * 1 blk >> 3 0,1,2,...,7 any single bit + * 2 blk >> 2 0, 2, 4 or 6 0x03, 0x0c, 0x30 or 0xc0 + * 4 blk >> 1 0 or 4 0x0f or 0xf0 + * 8 blk >> 0 always 0 always 0xff + */ +#define BITMAP_OFFSET_BIT_MASK(bm, blk) \ + uint64_t blk_offset = (blk) >> (3 - (bm)->bitshift); \ + unsigned blk_bit = (bm)->bpb * ((blk) & ((bm)->ibpb - 1)); \ + unsigned mask = ((1 << (bm)->bpb) - 1) << blk_bit + +/* Return the bit(s) associated with the given block. + * If the request is out of range, returns the default value. + */ +static inline unsigned __attribute__((__nonnull__ (1))) +bitmap_get_blk (const struct bitmap *bm, uint64_t blk, unsigned default_) +{ + BITMAP_OFFSET_BIT_MASK (bm, blk); + + if (blk_offset >= bm->size) { + nbdkit_debug ("bitmap_get: block number is out of range"); + return default_; + } + + return (bm->bitmap[blk_offset] & mask) >> blk_bit; +} + +/* As above but works with virtual disk offset in bytes. */ +static inline unsigned __attribute__((__nonnull__ (1))) +bitmap_get (const struct bitmap *bm, uint64_t offset, unsigned default_) +{ + return bitmap_get_blk (bm, offset / bm->blksize, default_); +} + +/* Set the bit(s) associated with the given block. + * If out of range, it is ignored. + */ +static inline void __attribute__((__nonnull__ (1))) +bitmap_set_blk (const struct bitmap *bm, uint64_t blk, unsigned v) +{ + BITMAP_OFFSET_BIT_MASK (bm, blk); + + if (blk_offset >= bm->size) { + nbdkit_debug ("bitmap_set: block number is out of range"); + return; + } + + bm->bitmap[blk_offset] &= ~mask; + bm->bitmap[blk_offset] |= v << blk_bit; +} + +/* As above bit works with virtual disk offset in bytes. */ +static inline void __attribute__((__nonnull__ (1))) +bitmap_set (const struct bitmap *bm, uint64_t offset, unsigned v) +{ + return bitmap_set_blk (bm, offset / bm->blksize, v); +} + +/* Iterate over blocks represented in the bitmap. */ +#define bitmap_for(bm, /* uint64_t */ blknum) \ + for ((blknum) = 0; (blknum) < (bm)->size * (bm)->ibpb; ++(blknum)) + +/* Find the next non-zero block in the bitmap, starting at ‘blk’. + * Returns -1 if the bitmap is all zeroes from blk to the end of the + * bitmap. + */ +extern int64_t bitmap_next (const struct bitmap *bm, uint64_t blk) + __attribute__((__nonnull__ (1))); + +#endif /* NBDKIT_BITMAP_H */ diff --git a/common/bitmap/test-bitmap.c b/common/bitmap/test-bitmap.c new file mode 100644 index 0000000..cbbbbef --- /dev/null +++ b/common/bitmap/test-bitmap.c @@ -0,0 +1,161 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* Unit tests of the bitmap code. */ + +#include + +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "bitmap.h" + +static void +test (int bpb, int blksize) +{ + struct bitmap bm; + const int nr_blocks = 1000; + int blks[] = + { + 1, 2, 3, 10, 12, + 90, 91, 92, 93, 94, 99, + 800, 801, 802, 803, + 902, 903, 905, 907, 911, 913, 917, 919, 923, 929, + 999 + }; + unsigned v, vexp; + size_t i, j; + + printf ("bpb = %d, blksize = %d\n", bpb, blksize); + fflush (stdout); + + bitmap_init (&bm, blksize, bpb); + if (bitmap_resize (&bm, nr_blocks * blksize) == -1) + exit (EXIT_FAILURE); + + /* Set some bits at known block numbers. */ + for (j = 0; j < sizeof blks / sizeof blks[0]; ++j) { + v = (j & 1) == 0 ? 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installdirs maintainer-clean \ + maintainer-clean-generic mostlyclean mostlyclean-compile \ + mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \ + tags tags-am uninstall uninstall-am + +.PRECIOUS: Makefile + + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/common/gpt/efi-crc32.c b/common/gpt/efi-crc32.c new file mode 100644 index 0000000..2b080d3 --- /dev/null +++ b/common/gpt/efi-crc32.c @@ -0,0 +1,140 @@ +/* This code was taken from parted and indirectly from other sources + * as you can see from the messages below. The license is compatible + * with the permissive license used in nbdkit. - RWMJ 2018-09-16 + */ + +/* + * Dec 5, 2000 Matt Domsch + * - Copied crc32.c from the linux/drivers/net/cipe directory. + * - Now pass seed as an arg + * - changed unsigned long to uint32_t, added #include + * - changed len to be an unsigned long + * - changed crc32val to be a register + * - License remains unchanged! It's still GPL-compatable! + */ + + /* ============================================================= */ + /* COPYRIGHT (C) 1986 Gary S. Brown. You may use this program, or */ + /* code or tables extracted from it, as desired without restriction. */ + /* */ + /* First, the polynomial itself and its table of feedback terms. The */ + /* polynomial is */ + /* X^32+X^26+X^23+X^22+X^16+X^12+X^11+X^10+X^8+X^7+X^5+X^4+X^2+X^1+X^0 */ + /* */ + /* Note that we take it "backwards" and put the highest-order term in */ + /* the lowest-order bit. The X^32 term is "implied"; the LSB is the */ + /* X^31 term, etc. The X^0 term (usually shown as "+1") results in */ + /* the MSB being 1. */ + /* */ + /* Note that the usual hardware shift register implementation, which */ + /* is what we're using (we're merely optimizing it by doing eight-bit */ + /* chunks at a time) shifts bits into the lowest-order term. In our */ + /* implementation, that means shifting towards the right. Why do we */ + /* do it this way? Because the calculated CRC must be transmitted in */ + /* order from highest-order term to lowest-order term. UARTs transmit */ + /* characters in order from LSB to MSB. By storing the CRC this way, */ + /* we hand it to the UART in the order low-byte to high-byte; the UART */ + /* sends each low-bit to hight-bit; and the result is transmission bit */ + /* by bit from highest- to lowest-order term without requiring any bit */ + /* shuffling on our part. Reception works similarly. */ + /* */ + /* The feedback terms table consists of 256, 32-bit entries. Notes: */ + /* */ + /* The table can be generated at runtime if desired; code to do so */ + /* is shown later. It might not be obvious, but the feedback */ + /* terms simply represent the results of eight shift/xor opera- */ + /* tions for all combinations of data and CRC register values. */ + /* */ + /* The values must be right-shifted by eight bits by the "updcrc" */ + /* logic; the shift must be unsigned (bring in zeroes). On some */ + /* hardware you could probably optimize the shift in assembler by */ + /* using byte-swap instructions. */ + /* polynomial $edb88320 */ + /* */ + /* -------------------------------------------------------------------- */ + +#include + +#include +#include + +#include "efi-crc32.h" + +static const uint32_t crc32_tab[] = { + 0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L, + 0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L, + 0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L, + 0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL, + 0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L, + 0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L, + 0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L, + 0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL, + 0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L, + 0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL, + 0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L, + 0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L, + 0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L, + 0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL, + 0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL, + 0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L, + 0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL, + 0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L, + 0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L, + 0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L, + 0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL, + 0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L, + 0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L, + 0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL, + 0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L, + 0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L, + 0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L, + 0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L, + 0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L, + 0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL, + 0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL, + 0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L, + 0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L, + 0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL, + 0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL, + 0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L, + 0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL, + 0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L, + 0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL, + 0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L, + 0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL, + 0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L, + 0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L, + 0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL, + 0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L, + 0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L, + 0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L, + 0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L, + 0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L, + 0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L, + 0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL, + 0x2d02ef8dL + }; + +/* Return a 32-bit CRC of the contents of the buffer. */ + +static uint32_t +_efi_crc32 (const void *buf, size_t len, uint32_t seed) +{ + size_t i; + uint32_t crc32val; + const unsigned char *s = buf; + + crc32val = seed; + for (i = 0; i < len; i++) { + crc32val = + crc32_tab[(crc32val ^ s[i]) & 0xff] ^ + (crc32val >> 8); + } + return crc32val; +} + +uint32_t +efi_crc32 (const void *buf, size_t len) +{ + return _efi_crc32 (buf, len, ~0L) ^ ~0L; +} diff --git a/common/gpt/efi-crc32.h b/common/gpt/efi-crc32.h new file mode 100644 index 0000000..e0332ea --- /dev/null +++ b/common/gpt/efi-crc32.h @@ -0,0 +1,41 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_EFI_CRC32_H +#define NBDKIT_EFI_CRC32_H + +#include + +extern uint32_t efi_crc32 (const void *buf, size_t len) + __attribute__((__nonnull__ (1))); + +#endif /* NBDKIT_EFI_CRC32_H */ diff --git a/common/gpt/gpt.h b/common/gpt/gpt.h new file mode 100644 index 0000000..34e5224 --- /dev/null +++ b/common/gpt/gpt.h @@ -0,0 +1,79 @@ +/* nbdkit + * Copyright (C) 2018-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_GPT_H +#define NBDKIT_GPT_H + +struct gpt_header { + char signature[8]; + char revision[4]; + uint32_t header_size; + uint32_t crc; + uint32_t reserved; + uint64_t current_lba; + uint64_t backup_lba; + uint64_t first_usable_lba; + uint64_t last_usable_lba; + char guid[16]; + uint64_t partition_entries_lba; + uint32_t nr_partition_entries; + uint32_t size_partition_entry; + uint32_t crc_partitions; +}; + +#define GPT_SIGNATURE "EFI PART" +#define GPT_REVISION "\0\0\1\0" /* revision 1.0 */ + +struct gpt_entry { + char partition_type_guid[16]; + char unique_guid[16]; + uint64_t first_lba; + uint64_t last_lba; + uint64_t attributes; + char name[72]; /* UTF-16LE */ +}; + +/* GPT_MIN_PARTITIONS is the minimum number of partitions and is + * defined by the UEFI standard (assuming 512 byte sector size). + * + * In plugins such as the partitioning plugin, if we are requested to + * allocate more than GPT_MIN_PARTITIONS then we increase the + * partition table in chunks of this size. Note that clients may not + * support > GPT_MIN_PARTITIONS. + * + * GPT_PT_ENTRY_SIZE is the minimum specified by the UEFI spec, but + * increasing it is not useful. + */ +#define GPT_MIN_PARTITIONS 128 +#define GPT_PT_ENTRY_SIZE 128 + +#endif /* NBDKIT_GPT_H */ diff --git a/common/include/Makefile.am b/common/include/Makefile.am new file mode 100644 index 0000000..7e0f181 --- /dev/null +++ b/common/include/Makefile.am @@ -0,0 +1,97 @@ +# nbdkit +# Copyright (C) 2018-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +# These headers contain only common code shared by the core server, +# plugins and/or filters. They are not installed. +EXTRA_DIST = \ + byte-swapping.h \ + exit-with-parent.h \ + get-current-dir-name.h \ + isaligned.h \ + ispowerof2.h \ + iszero.h \ + minmax.h \ + nextnonzero.h \ + random.h \ + rounding.h \ + tvdiff.h + +# Unit tests. + +TESTS = \ + test-byte-swapping \ + test-current-dir-name \ + test-isaligned \ + test-ispowerof2 \ + test-iszero \ + test-minmax \ + test-nextnonzero \ + test-random \ + test-tvdiff +check_PROGRAMS = $(TESTS) + +test_byte_swapping_SOURCES = test-byte-swapping.c byte-swapping.h +test_byte_swapping_CPPFLAGS = -I$(srcdir) +test_byte_swapping_CFLAGS = $(WARNINGS_CFLAGS) + +test_current_dir_name_SOURCES = test-current-dir-name.c get-current-dir-name.h +test_current_dir_name_CPPFLAGS = -I$(srcdir) +test_current_dir_name_CFLAGS = $(WARNINGS_CFLAGS) + +test_isaligned_SOURCES = test-isaligned.c isaligned.h +test_isaligned_CPPFLAGS = -I$(srcdir) +test_isaligned_CFLAGS = $(WARNINGS_CFLAGS) + +test_ispowerof2_SOURCES = test-ispowerof2.c ispowerof2.h +test_ispowerof2_CPPFLAGS = -I$(srcdir) +test_ispowerof2_CFLAGS = $(WARNINGS_CFLAGS) + +test_iszero_SOURCES = test-iszero.c iszero.h +test_iszero_CPPFLAGS = -I$(srcdir) +test_iszero_CFLAGS = $(WARNINGS_CFLAGS) + +test_minmax_SOURCES = test-minmax.c minmax.h +test_minmax_CPPFLAGS = -I$(srcdir) +test_minmax_CFLAGS = $(WARNINGS_CFLAGS) + +test_nextnonzero_SOURCES = test-nextnonzero.c nextnonzero.h +test_nextnonzero_CPPFLAGS = -I$(srcdir) +test_nextnonzero_CFLAGS = $(WARNINGS_CFLAGS) + +test_random_SOURCES = test-random.c random.h +test_random_CPPFLAGS = -I$(srcdir) +test_random_CFLAGS = $(WARNINGS_CFLAGS) + +test_tvdiff_SOURCES = test-tvdiff.c tvdiff.h +test_tvdiff_CPPFLAGS = -I$(srcdir) +test_tvdiff_CFLAGS = $(WARNINGS_CFLAGS) diff --git a/common/include/Makefile.in b/common/include/Makefile.in new file mode 100644 index 0000000..bdc00c7 --- /dev/null +++ b/common/include/Makefile.in @@ -0,0 +1,1478 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +VPATH = @srcdir@ +am__is_gnu_make = { \ + if test -z '$(MAKELEVEL)'; then \ + false; \ + elif test -n '$(MAKE_HOST)'; then \ + true; \ + elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \ + true; \ + else \ + false; \ + fi; \ +} +am__make_running_with_option = \ + case $${target_option-} in \ + ?) ;; \ + *) echo "am__make_running_with_option: internal error: invalid" \ + "target option '$${target_option-}' specified" >&2; \ + exit 1;; \ + esac; \ + 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recheck tags tags-am uninstall uninstall-am + +.PRECIOUS: Makefile + + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/common/include/byte-swapping.h b/common/include/byte-swapping.h new file mode 100644 index 0000000..0dd1754 --- /dev/null +++ b/common/include/byte-swapping.h @@ -0,0 +1,96 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* The job of this header is to define macros (or functions) called + * things like 'htobe32' and 'le64toh' which byte swap N-bit integers + * between host representation, and little and big endian. The core + * code and plugins in nbdkit uses these names and relies on this + * header to provide the platform-specific implementation. On Linux + * these are defined in but other platforms have other + * requirements. + */ + +#ifndef NBDKIT_BYTE_SWAPPING_H +#define NBDKIT_BYTE_SWAPPING_H + +#ifdef __HAIKU__ +#define _BSD_SOURCE +#endif + +#ifdef HAVE_BYTESWAP_H +#include +#endif + +#ifdef HAVE_ENDIAN_H +#include +#endif + +#ifdef HAVE_SYS_ENDIAN_H +#include +#endif + +#ifndef htobe32 +# if __BYTE_ORDER == __LITTLE_ENDIAN +# define htobe16(x) __bswap_16 (x) +# define htole16(x) (x) +# define be16toh(x) __bswap_16 (x) +# define le16toh(x) (x) + +# define htobe32(x) __bswap_32 (x) +# define htole32(x) (x) +# define be32toh(x) __bswap_32 (x) +# define le32toh(x) (x) + +# define htobe64(x) __bswap_64 (x) +# define htole64(x) (x) +# define be64toh(x) __bswap_64 (x) +# define le64toh(x) (x) + +# else +# define htobe16(x) (x) +# define htole16(x) __bswap_16 (x) +# define be16toh(x) (x) +# define le16toh(x) __bswap_16 (x) + +# define htobe32(x) (x) +# define htole32(x) __bswap_32 (x) +# define be32toh(x) (x) +# define le32toh(x) __bswap_32 (x) + +# define htobe64(x) (x) +# define htole64(x) __bswap_64 (x) +# define be64toh(x) (x) +# define le64toh(x) __bswap_64 (x) +# endif +#endif + +#endif /* NBDKIT_BYTE_SWAPPING_H */ diff --git a/common/include/exit-with-parent.h b/common/include/exit-with-parent.h new file mode 100644 index 0000000..dde4ffe --- /dev/null +++ b/common/include/exit-with-parent.h @@ -0,0 +1,79 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* Implement the --exit-with-parent feature on operating systems which + * support it. + */ + +#ifndef NBDKIT_EXIT_WITH_PARENT_H +#define NBDKIT_EXIT_WITH_PARENT_H + +#include + +#include + +#ifdef HAVE_SYS_PRCTL_H +#include +#endif + +#ifdef HAVE_SYS_PROCCTL_H +#include +#endif + +#if defined(HAVE_SYS_PRCTL_H) && defined(PR_SET_PDEATHSIG) + +/* For Linux >= 2.1.57. */ + +static inline int +set_exit_with_parent (void) +{ + return prctl (PR_SET_PDEATHSIG, SIGTERM); +} + +#define HAVE_EXIT_WITH_PARENT 1 + +#elif defined(HAVE_SYS_PROCCTL_H) && defined(PROC_PDEATHSIG_CTL) + +/* For FreeBSD >= 11.2 */ + +static inline int +set_exit_with_parent (void) +{ + const int sig = SIGTERM; + return procctl (P_PID, 0, PROC_PDEATHSIG_CTL, (void*) &sig); +} + +#define HAVE_EXIT_WITH_PARENT 1 + +#endif + +#endif /* NBDKIT_INTERNAL_H */ diff --git a/common/include/get-current-dir-name.h b/common/include/get-current-dir-name.h new file mode 100644 index 0000000..09c6a0f --- /dev/null +++ b/common/include/get-current-dir-name.h @@ -0,0 +1,61 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* Implement get_current_dir_name(3) on platforms which don't have it. */ + +#ifndef NBDKIT_GET_CURRENT_DIR_NAME_H +#define NBDKIT_GET_CURRENT_DIR_NAME_H + +#include + +#ifndef HAVE_GET_CURRENT_DIR_NAME + +#include +#include +#include + +static inline char * +get_current_dir_name (void) +{ + char *ret; + + ret = malloc (PATH_MAX); + if (ret == NULL) + return NULL; + ret = getcwd (ret, PATH_MAX); + if (ret == NULL) + return NULL; + return realloc (ret, strlen (ret) + 1); +} +#endif + +#endif /* NBDKIT_GET_CURRENT_DIR_NAME_H */ diff --git a/common/include/isaligned.h b/common/include/isaligned.h new file mode 100644 index 0000000..2350406 --- /dev/null +++ b/common/include/isaligned.h @@ -0,0 +1,47 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_ISALIGNED_H +#define NBDKIT_ISALIGNED_H + +#include + +#include "ispowerof2.h" + +/* Return true if size is a multiple of align. align must be power of 2. + */ +#define IS_ALIGNED(size, align) ({ \ + assert (is_power_of_2 ((align))); \ + !((size) & ((align) - 1)); \ +}) + +#endif /* NBDKIT_ISALIGNED_H */ diff --git a/common/include/ispowerof2.h b/common/include/ispowerof2.h new file mode 100644 index 0000000..b9a5cc7 --- /dev/null +++ b/common/include/ispowerof2.h @@ -0,0 +1,49 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_ISPOWEROF2_H +#define NBDKIT_ISPOWEROF2_H + +#include + +/* Returns true if v is a power of 2. + * + * Uses the algorithm described at + * http://graphics.stanford.edu/~seander/bithacks.html#DetermineIfPowerOf2 + */ +static inline bool +is_power_of_2 (unsigned long v) +{ + return v && ((v & (v - 1)) == 0); +} + +#endif /* NBDKIT_ISPOWEROF2_H */ diff --git a/common/include/iszero.h b/common/include/iszero.h new file mode 100644 index 0000000..7fdbb52 --- /dev/null +++ b/common/include/iszero.h @@ -0,0 +1,63 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_ISZERO_H +#define NBDKIT_ISZERO_H + +#include +#include + +/* Return true iff the buffer is all zero bytes. + * + * The clever approach here was suggested by Eric Blake. See: + * https://www.redhat.com/archives/libguestfs/2017-April/msg00171.html + * https://rusty.ozlabs.org/?p=560 + * + * See also: + * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69908 + */ +static inline bool __attribute__((__nonnull__ (1))) +is_zero (const char *buffer, size_t size) +{ + size_t i; + const size_t limit = size < 16 ? size : 16; + + for (i = 0; i < limit; ++i) + if (buffer[i]) + return false; + if (size != limit) + return ! memcmp (buffer, buffer + 16, size - 16); + + return true; +} + +#endif /* NBDKIT_ISZERO_H */ diff --git a/common/include/minmax.h b/common/include/minmax.h new file mode 100644 index 0000000..72fcab4 --- /dev/null +++ b/common/include/minmax.h @@ -0,0 +1,75 @@ +/* nbdkit + * Copyright (C) 2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_MINMAX_H +#define NBDKIT_MINMAX_H + +#include + +/* Safe MIN and MAX macros. These evaluate each parameter once. They + * work for any comparable type. + * + * __auto_type is a GCC extension, added in GCC 4.9 in 2014, and to + * Clang in 2015. The fallback uses typeof which was added a very + * long time ago. Note that OpenBSD lacks __auto_type so the fallback + * is required. + */ + +#ifdef HAVE_AUTO_TYPE + +#define MIN(x, y) ({ \ + __auto_type _x = (x); \ + __auto_type _y = (y); \ + _x < _y ? _x : _y; \ + }) +#define MAX(x, y) ({ \ + __auto_type _x = (x); \ + __auto_type _y = (y); \ + _x > _y ? _x : _y; \ + }) + +#else + +#define MIN(x, y) ({ \ + typeof (x) _x = (x); \ + typeof (y) _y = (y); \ + _x < _y ? _x : _y; \ + }) +#define MAX(x, y) ({ \ + typeof (x) _x = (x); \ + typeof (y) _y = (y); \ + _x > _y ? _x : _y; \ + }) + +#endif + +#endif /* NBDKIT_MINMAX_H */ diff --git a/common/include/nextnonzero.h b/common/include/nextnonzero.h new file mode 100644 index 0000000..cf4ca3c --- /dev/null +++ b/common/include/nextnonzero.h @@ -0,0 +1,58 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_NEXTNONZERO_H +#define NBDKIT_NEXTNONZERO_H + +/* Given a byte buffer, return a pointer to the first non-zero byte, + * or return NULL if we reach the end of the buffer. + * + * XXX: Even with -O3 -mavx2, gcc 8.2.1 does a terrible job with this + * loop, compiling it completely naively. QEMU has an AVX2 + * implementation of a similar loop. + * + * See also: + * https://sourceware.org/bugzilla/show_bug.cgi?id=19920 + * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69908 + */ +static inline const char * __attribute__((__nonnull__ (1))) +next_non_zero (const char *buffer, size_t size) +{ + size_t i; + + for (i = 0; i < size; ++i) + if (buffer[i] != 0) + return &buffer[i]; + return NULL; +} + +#endif /* NBDKIT_NEXTNONZERO_H */ diff --git a/common/include/random.h b/common/include/random.h new file mode 100644 index 0000000..1190859 --- /dev/null +++ b/common/include/random.h @@ -0,0 +1,103 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_RANDOM_H +#define NBDKIT_RANDOM_H + +#include + +/* Generate pseudo-random numbers, quickly, with explicit state. + * + * This is based on the xoshiro/xoroshiro generators by David Blackman + * and Sebastiano Vigna (http://xoshiro.di.unimi.it/). Specifically + * the main PRNG is ‘xoshiro256** 1.0’, and the seed generator is + * ‘splitmix64’. + * + * This does _NOT_ generate cryptographically secure random numbers + * (CSPRNG) and so should not be used when cryptography or security is + * required - use gcrypt if you need those. + */ + +/* You can seed ‘struct random_state’ by setting the s[] elements + * directly - but you must NOT set them all to zero. Alternately if + * you have a 64 bit seed, you can call xsrandom to initialize the + * state. + */ +struct random_state { + uint64_t s[4]; +}; + +static inline uint64_t +snext (uint64_t *seed) +{ + uint64_t z = (*seed += 0x9e3779b97f4a7c15); + z = (z ^ (z >> 30)) * 0xbf58476d1ce4e5b9; + z = (z ^ (z >> 27)) * 0x94d049bb133111eb; + return z ^ (z >> 31); +} + +/* Seed the random state from a 64 bit seed. */ +static inline void __attribute__((__nonnull__ (2))) +xsrandom (uint64_t seed, struct random_state *state) +{ + state->s[0] = snext (&seed); + state->s[1] = snext (&seed); + state->s[2] = snext (&seed); + state->s[3] = snext (&seed); +} + +static inline uint64_t +rotl (const uint64_t x, int k) +{ + return (x << k) | (x >> (64 - k)); +} + +/* Returns 64 random bits. Updates the state. */ +static inline uint64_t __attribute__((__nonnull__ (1))) +xrandom (struct random_state *state) +{ + const uint64_t result_starstar = rotl (state->s[1] * 5, 7) * 9; + const uint64_t t = state->s[1] << 17; + + state->s[2] ^= state->s[0]; + state->s[3] ^= state->s[1]; + state->s[1] ^= state->s[2]; + state->s[0] ^= state->s[3]; + + state->s[2] ^= t; + + state->s[3] = rotl (state->s[3], 45); + + return result_starstar; +} + +#endif /* NBDKIT_RANDOM_H */ diff --git a/common/include/rounding.h b/common/include/rounding.h new file mode 100644 index 0000000..744964e --- /dev/null +++ b/common/include/rounding.h @@ -0,0 +1,57 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_ROUNDING_H +#define NBDKIT_ROUNDING_H + +#include + +#include "ispowerof2.h" + +/* Round up i to next multiple of n (n must be a power of 2). + */ +#define ROUND_UP(i, n) ({ \ + assert (is_power_of_2 (n)); \ + ((i) + (n) - 1) & -((typeof (i))(n)); \ +}) + +/* Round down i to next multiple of n (n must be a power of 2). + */ +#define ROUND_DOWN(i, n) ({ \ + assert (is_power_of_2 (n)); \ + (i) & -((typeof (i))(n)); \ +}) + +/* Return n / d, rounding the result up to the next integer. */ +#define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d)) + +#endif /* NBDKIT_ROUNDING_H */ diff --git a/common/include/test-byte-swapping.c b/common/include/test-byte-swapping.c new file mode 100644 index 0000000..82f5194 --- /dev/null +++ b/common/include/test-byte-swapping.c @@ -0,0 +1,89 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include + +#include "byte-swapping.h" + +/* Little-endian test strings. */ +static uint8_t le16[] = { 0x34, 0x12 }; +static uint8_t le32[] = { 0x78, 0x56, 0x34, 0x12 }; +static uint8_t le64[] = { 0xf0, 0xde, 0xbc, 0x9a, 0x78, 0x56, 0x34, 0x12 }; + +/* Big-endian test strings. */ +static uint8_t be16[] = { 0x12, 0x34 }; +static uint8_t be32[] = { 0x12, 0x34, 0x56, 0x78 }; +static uint8_t be64[] = { 0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0 }; + +int +main (void) +{ + uint16_t i16; + uint32_t i32; + uint64_t i64; + + memcpy (&i16, le16, 2); + assert (le16toh (i16) == 0x1234); + memcpy (&i32, le32, 4); + assert (le32toh (i32) == 0x12345678); + memcpy (&i64, le64, 8); + assert (le64toh (i64) == 0x123456789abcdef0); + + memcpy (&i16, be16, 2); + assert (be16toh (i16) == 0x1234); + memcpy (&i32, be32, 4); + assert (be32toh (i32) == 0x12345678); + memcpy (&i64, be64, 8); + assert (be64toh (i64) == 0x123456789abcdef0); + + i16 = htole16 (0x1234); + assert (memcmp (&i16, le16, 2) == 0); + i32 = htole32 (0x12345678); + assert (memcmp (&i32, le32, 4) == 0); + i64 = htole64 (0x123456789abcdef0); + assert (memcmp (&i64, le64, 8) == 0); + + i16 = htobe16 (0x1234); + assert (memcmp (&i16, be16, 2) == 0); + i32 = htobe32 (0x12345678); + assert (memcmp (&i32, be32, 4) == 0); + i64 = htobe64 (0x123456789abcdef0); + assert (memcmp (&i64, be64, 8) == 0); + + exit (EXIT_SUCCESS); +} diff --git a/common/include/test-current-dir-name.c b/common/include/test-current-dir-name.c new file mode 100644 index 0000000..bb2bfd1 --- /dev/null +++ b/common/include/test-current-dir-name.c @@ -0,0 +1,53 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include + +#include "get-current-dir-name.h" + +int +main (void) +{ + char *pwd; + + pwd = get_current_dir_name (); + printf ("pwd = %s\n", pwd); + free (pwd); + exit (EXIT_SUCCESS); +} diff --git a/common/include/test-isaligned.c b/common/include/test-isaligned.c new file mode 100644 index 0000000..adad326 --- /dev/null +++ b/common/include/test-isaligned.c @@ -0,0 +1,61 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include + +#include "isaligned.h" + +int +main (void) +{ + uint64_t i; + + for (i = 1; i <= 0x80000000; i <<= 1) { + assert (IS_ALIGNED (0, i)); + assert (IS_ALIGNED (i, i)); + assert (IS_ALIGNED (i*2, i)); + assert (IS_ALIGNED (i*3, i)); + assert (IS_ALIGNED (i*4, i)); + if (i > 1) { + assert (! IS_ALIGNED (i-1, i)); + assert (! IS_ALIGNED (i/2, i)); + } + } + + exit (EXIT_SUCCESS); +} diff --git a/common/include/test-ispowerof2.c b/common/include/test-ispowerof2.c new file mode 100644 index 0000000..af3e3b9 --- /dev/null +++ b/common/include/test-ispowerof2.c @@ -0,0 +1,61 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include + +#include "ispowerof2.h" + +int +main (void) +{ + uint64_t i; + + assert (! is_power_of_2 (0)); + + /* is_power_of_2 is only defined for unsigned long type, which is + * 32 bit on 32 bit platforms. We need to store i in a 64 bit type + * so the loops don't wrap around. + */ + for (i = 1; i <= 0x80000000; i <<= 1) + assert (is_power_of_2 (i)); + + for (i = 4; i <= 0x80000000; i <<= 1) + assert (! is_power_of_2 (i-1)); + + exit (EXIT_SUCCESS); +} diff --git a/common/include/test-iszero.c b/common/include/test-iszero.c new file mode 100644 index 0000000..1a4f09f --- /dev/null +++ b/common/include/test-iszero.c @@ -0,0 +1,65 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include + +#include "iszero.h" + +int +main (void) +{ + char *buf; + size_t i, j; + + buf = malloc (256); + if (buf == NULL) { + perror ("malloc"); + exit (EXIT_FAILURE); + } + memset (buf, 0, 256); + + for (j = 0; j <= 16; ++j) { + for (i = 0; i <= 16; ++i) + assert (is_zero (&buf[j], i)); + for (i = 0; i <= 16; ++i) + assert (is_zero (&buf[j], 256-j-i)); + } + + free (buf); + exit (EXIT_SUCCESS); +} diff --git a/common/include/test-minmax.c b/common/include/test-minmax.c new file mode 100644 index 0000000..958bd88 --- /dev/null +++ b/common/include/test-minmax.c @@ -0,0 +1,157 @@ +/* nbdkit + * Copyright (C) 2018-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include + +#include "minmax.h" + +#define SIGNED_TEST(var, min, max) \ + MIN_SIGNED_TEST (var, min, max) \ + MAX_SIGNED_TEST (var, min, max) + +#define MIN_SIGNED_TEST(var, min, max) \ + var = 0; \ + assert (MIN (0, var) == 0); \ + var = 1; \ + assert (MIN (0, var) == 0); \ + var = -1; \ + assert (MIN (0, var) == -1); \ + var = 1; \ + assert (MIN (var, 0) == 0); \ + var = 1; \ + assert (MIN (var, 1) == 1); \ + var = -1; \ + assert (MIN (var, 0) == -1); \ + var = min; \ + assert (MIN (var, min) == min); \ + var = max; \ + assert (MIN (var, max) == max); \ + var = min; \ + assert (MIN (var, max) == min); \ + assert (MIN (0, min) == min); + +#define MAX_SIGNED_TEST(var, min, max) \ + var = 0; \ + assert (MAX (0, var) == 0); \ + var = 1; \ + assert (MAX (0, var) == 1); \ + var = -1; \ + assert (MAX (0, var) == 0); \ + var = 1; \ + assert (MAX (var, 0) == 1); \ + var = 1; \ + assert (MAX (var, 1) == 1); \ + var = -1; \ + assert (MAX (var, 0) == 0); \ + var = min; \ + assert (MAX (var, min) == min); \ + var = max; \ + assert (MAX (var, max) == max); \ + var = min; \ + assert (MAX (var, max) == max); \ + assert (MAX (0, min) == 0); + +#define UNSIGNED_TEST(var, max) \ + MIN_UNSIGNED_TEST (var, max) \ + MAX_UNSIGNED_TEST (var, max) + +#define MIN_UNSIGNED_TEST(var, max) \ + var = 0; \ + assert (MIN (0, var) == 0); \ + var = 1; \ + assert (MIN (0, var) == 0); \ + var = 1; \ + assert (MIN (var, 0) == 0); \ + var = 1; \ + assert (MIN (var, 1) == 1); \ + var = max; \ + assert (MIN (var, max) == max); + +#define MAX_UNSIGNED_TEST(var, max) \ + var = 0; \ + assert (MAX (0, var) == 0); \ + var = 1; \ + assert (MAX (0, var) == 1); \ + var = 1; \ + assert (MAX (var, 0) == 1); \ + var = 1; \ + assert (MAX (var, 1) == 1); \ + var = max; \ + assert (MAX (var, max) == max); + +int +main (void) +{ + signed char sc; + int i; + int8_t i8; + int16_t i16; + int32_t i32; + int64_t i64; + unsigned char uc; + unsigned u; + uint8_t u8; + uint16_t u16; + uint32_t u32; + uint64_t u64; + float f; + double d; + + SIGNED_TEST (sc, SCHAR_MIN, SCHAR_MAX); + SIGNED_TEST (i, INT_MIN, INT_MAX); + SIGNED_TEST (i8, INT8_MIN, INT8_MAX); + SIGNED_TEST (i16, INT16_MIN, INT16_MAX); + SIGNED_TEST (i32, INT32_MIN, INT32_MAX); + SIGNED_TEST (i64, INT64_MIN, INT64_MAX); + + UNSIGNED_TEST (uc, UCHAR_MAX); + UNSIGNED_TEST (u, UINT_MAX); + UNSIGNED_TEST (u8, UINT8_MAX); + UNSIGNED_TEST (u16, UINT16_MAX); + UNSIGNED_TEST (u32, UINT32_MAX); + UNSIGNED_TEST (u64, UINT64_MAX); + + /* Note that FLT_MIN and DBL_MIN are the closest positive normalized + * numbers to 0.0, not the min. + */ + SIGNED_TEST (f, -FLT_MAX, FLT_MAX); + SIGNED_TEST (d, -DBL_MAX, DBL_MAX); + + exit (EXIT_SUCCESS); +} diff --git a/common/include/test-nextnonzero.c b/common/include/test-nextnonzero.c new file mode 100644 index 0000000..f95d50a --- /dev/null +++ b/common/include/test-nextnonzero.c @@ -0,0 +1,62 @@ +/* nbdkit + * Copyright (C) 2018-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include + +#include "nextnonzero.h" + +char buf[256]; + +int +main (void) +{ + size_t i, j; + char *p; + + for (j = 0; j <= 64; ++j) { + for (i = 0; i <= 64; ++i) { + memset (buf, 0, sizeof buf); + + p = &buf[sizeof buf - j - 1]; + *p = i+1; + assert (next_non_zero (&buf[i], sizeof buf - i) == p); + } + } + + exit (EXIT_SUCCESS); +} diff --git a/common/include/test-random.c b/common/include/test-random.c new file mode 100644 index 0000000..16553ee --- /dev/null +++ b/common/include/test-random.c @@ -0,0 +1,194 @@ +/* nbdkit + * Copyright (C) 2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include + +#include "random.h" + +/* This works by comparing the result to some known test vectors. It + * should produce the same result on all architectures, platforms and + * compilers. + */ + +#define LEN 16 + +struct { + uint64_t seed; + uint64_t vector[LEN]; +} tests[] = { + { 0, { +UINT64_C(0x99ec5f36cb75f2b4), +UINT64_C(0xbf6e1f784956452a), +UINT64_C(0x1a5f849d4933e6e0), +UINT64_C(0x6aa594f1262d2d2c), +UINT64_C(0xbba5ad4a1f842e59), +UINT64_C(0xffef8375d9ebcaca), +UINT64_C(0x6c160deed2f54c98), +UINT64_C(0x8920ad648fc30a3f), +UINT64_C(0xdb032c0ba7539731), +UINT64_C(0xeb3a475a3e749a3d), +UINT64_C(0x1d42993fa43f2a54), +UINT64_C(0x11361bf526a14bb5), +UINT64_C(0x1b4f07a5ab3d8e9c), +UINT64_C(0xa7a3257f6986db7f), +UINT64_C(0x7efdaa95605dfc9c), +UINT64_C(0x4bde97c0a78eaab8), + } }, + { 1, { +UINT64_C(0xb3f2af6d0fc710c5), +UINT64_C(0x853b559647364cea), +UINT64_C(0x92f89756082a4514), +UINT64_C(0x642e1c7bc266a3a7), +UINT64_C(0xb27a48e29a233673), +UINT64_C(0x24c123126ffda722), +UINT64_C(0x123004ef8df510e6), +UINT64_C(0x61954dcc47b1e89d), +UINT64_C(0xddfdb48ab9ed4a21), +UINT64_C(0x8d3cdb8c3aa5b1d0), +UINT64_C(0xeebd114bd87226d1), +UINT64_C(0xf50c3ff1e7d7e8a6), +UINT64_C(0xeeca3115e23bc8f1), +UINT64_C(0xab49ed3db4c66435), +UINT64_C(0x99953c6c57808dd7), +UINT64_C(0xe3fa941b05219325), +} }, + { 2, { +UINT64_C(0x1a28690da8a8d057), +UINT64_C(0xb9bb8042daedd58a), +UINT64_C(0x2f1829af001ef205), +UINT64_C(0xbf733e63d139683d), +UINT64_C(0xafa78247c6a82034), +UINT64_C(0x3c69a1b6d15cf0d0), +UINT64_C(0xa5a9fdd18948c400), +UINT64_C(0x3813d2654a981e91), +UINT64_C(0x9be35597c9c97bfa), +UINT64_C(0xbfc5e80fd0b75f32), +UINT64_C(0xbee02daaac716557), +UINT64_C(0x5afed6f12b594dbe), +UINT64_C(0xae346b9196e12cc7), +UINT64_C(0xf5f45afc1af068ed), +UINT64_C(0xff75eccacfb37519), +UINT64_C(0x1adca5a0b2e766c5), +} }, + { 3, { +UINT64_C(0xb0cdabdae5668cc0), +UINT64_C(0xa3fd1dea5e1864ee), +UINT64_C(0x37e00afb3229fd51), +UINT64_C(0x88b1b58b236f3bea), +UINT64_C(0x6cb24c8fb224980a), +UINT64_C(0x6646287ee2a98083), +UINT64_C(0x35cd8bb5e1fa7256), +UINT64_C(0xb72fe6e16b6fb4e6), +UINT64_C(0xf1397a9f1db4f5d9), +UINT64_C(0x31f25047faa8e5d4), +UINT64_C(0xec616a6e46e96dec), +UINT64_C(0xae0c5e0f7b5d1449), +UINT64_C(0xa517e799c5c6e32f), +UINT64_C(0xc1276908f843b688), +UINT64_C(0xaf7e924d738d87ec), +UINT64_C(0x1c3f3ba863d5c7d1), +} }, + { 4, { +UINT64_C(0x437057a4eb7c3a13), +UINT64_C(0xe95a0d7fd8c1832c), +UINT64_C(0x71807ff81a0c627e), +UINT64_C(0xfa40f34634632cd2), +UINT64_C(0x39cf61fc694b95b7), +UINT64_C(0x9ca3d6e037621a02), +UINT64_C(0x7be965236729c7d3), +UINT64_C(0xb95fba07afa980ac), +UINT64_C(0x91424978ab94232), +UINT64_C(0x565eb8170fdae341), +UINT64_C(0x0744508beb95a6bb), +UINT64_C(0xf2426b33aa0a601d), +UINT64_C(0x7ddc1fcd0bfec893), +UINT64_C(0x9e09fedd4af1ff3d), +UINT64_C(0xbe77c1bed02132e7), +UINT64_C(0x61e4f6e3e88d34d4), +} }, + { UINT64_MAX, { +UINT64_C(0x8f5520d52a7ead08), +UINT64_C(0xc476a018caa1802d), +UINT64_C(0x81de31c0d260469e), +UINT64_C(0xbf658d7e065f3c2f), +UINT64_C(0x913593fda1bca32a), +UINT64_C(0xbb535e93941ba525), +UINT64_C(0x5ecda415c3c6dfde), +UINT64_C(0xc487398fc9de9ae2), +UINT64_C(0xa06746dbb57c4d62), +UINT64_C(0x9d414196fdf05c8a), +UINT64_C(0x41cf1af9a178c669), +UINT64_C(0x0b3b3a95e78839f9), +UINT64_C(0x7aaab30444aefc7e), +UINT64_C(0x7b251ec961f341b1), +UINT64_C(0x30ed32acf367205f), +UINT64_C(0xc6ca62fc772728b0), +} }, +}; + +#define nr_tests (sizeof tests / sizeof tests[0]) + +int +main (void) +{ + size_t i, j; + uint64_t r; + unsigned errors = 0; + + for (i = 0; i < nr_tests; ++i) { + struct random_state state; + + printf ("seed: %" PRIu64 "\n", tests[i].seed); + xsrandom (tests[i].seed, &state); + for (j = 0; j < LEN; ++j) { + r = xrandom (&state); + if (tests[i].vector[j] != r) { + printf ("\texpected: 0x%" PRIx64 "\tactual: 0x%" PRIx64 "\n", + tests[i].vector[j], r); + errors++; + } + } + } + + if (errors > 0) { + fprintf (stderr, "random vector does not match expected\n"); + exit (EXIT_FAILURE); + } + + printf ("test successful\n"); + exit (EXIT_SUCCESS); +} diff --git a/common/include/test-tvdiff.c b/common/include/test-tvdiff.c new file mode 100644 index 0000000..9cbcfc0 --- /dev/null +++ b/common/include/test-tvdiff.c @@ -0,0 +1,81 @@ +/* nbdkit + * Copyright (C) 2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include + +#include "tvdiff.h" + +/* This is mainly a test of the compiler and platform rather than our + * implementation. + */ + +int +main (void) +{ + struct timeval tv1, tv2; + + tv1.tv_sec = 1000; + tv1.tv_usec = 1; + assert (tvdiff_usec (&tv1, &tv1) == 0); + tv2.tv_sec = 1000; + tv2.tv_usec = 2; + assert (tvdiff_usec (&tv1, &tv2) == 1); + assert (tvdiff_usec (&tv2, &tv1) == -1); + tv2.tv_sec = 1000; + tv2.tv_usec = 3; + assert (tvdiff_usec (&tv1, &tv2) == 2); + assert (tvdiff_usec (&tv2, &tv1) == -2); + tv2.tv_sec = 1001; + tv2.tv_usec = 0; + assert (tvdiff_usec (&tv1, &tv2) == 999999); + assert (tvdiff_usec (&tv2, &tv1) == -999999); + + tv1.tv_sec = 1000; + tv1.tv_usec = 999999; + tv2.tv_sec = 1001; + tv2.tv_usec = 1; + assert (tvdiff_usec (&tv1, &tv2) == 2); + assert (tvdiff_usec (&tv2, &tv1) == -2); + + /* Test that an arbitrary tv is equal to itself. */ + gettimeofday (&tv1, NULL); + assert (tvdiff_usec (&tv1, &tv1) == 0); + + exit (EXIT_SUCCESS); +} diff --git a/common/include/tvdiff.h b/common/include/tvdiff.h new file mode 100644 index 0000000..db86b66 --- /dev/null +++ b/common/include/tvdiff.h @@ -0,0 +1,53 @@ +/* nbdkit + * Copyright (C) 2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_TVDIFF_H +#define NBDKIT_TVDIFF_H + +/* Compute struct timeval differences. */ + +#include + +#include + +/* Return the number of µs (microseconds) in y - x. */ +static int64_t +tvdiff_usec (const struct timeval *x, const struct timeval *y) +{ + int64_t usec; + + usec = (y->tv_sec - x->tv_sec) * 1000000; + usec += y->tv_usec - x->tv_usec; + return usec; +} + +#endif /* NBDKIT_TVDIFF_H */ diff --git a/common/protocol/Makefile.am b/common/protocol/Makefile.am new file mode 100644 index 0000000..8f08e9b --- /dev/null +++ b/common/protocol/Makefile.am @@ -0,0 +1,56 @@ +# nbdkit +# Copyright (C) 2018-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = \ + protocol.h \ + protostrings.c \ + protostrings.sed + +noinst_LTLIBRARIES = libprotocol.la + +libprotocol_la_SOURCES = \ + protostrings.c \ + protocol.h +libprotocol_la_CFLAGS = \ + $(WARNINGS_CFLAGS) + +# protostrings.c is generated from the protocol.h header file where it +# is used to map NBD protocol flags to strings. + +BUILT_SOURCES = protostrings.c +CLEANFILES += protostrings.c +protostrings.c: protocol.h protostrings.sed Makefile + rm -f $@ $@-t + $(SED) -n -f $(srcdir)/protostrings.sed < $< > $@-t + mv $@-t $@ + chmod 0444 $@ diff --git a/common/protocol/Makefile.in b/common/protocol/Makefile.in new file mode 100644 index 0000000..0e3db38 --- /dev/null +++ b/common/protocol/Makefile.in @@ -0,0 +1,777 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/common/protocol/protocol.h b/common/protocol/protocol.h new file mode 100644 index 0000000..9e29b30 --- /dev/null +++ b/common/protocol/protocol.h @@ -0,0 +1,241 @@ +/* nbdkit + * Copyright (C) 2013-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_PROTOCOL_H +#define NBDKIT_PROTOCOL_H + +#include + +/* Note that all NBD fields are sent on the wire in network byte + * order, so we must use beXXtoh or htobeXX when reading or writing + * these structures. + */ + +/* Old-style handshake. */ +struct old_handshake { + char nbdmagic[8]; /* "NBDMAGIC" */ + uint64_t version; /* OLD_VERSION */ + uint64_t exportsize; + uint16_t gflags; /* global flags */ + uint16_t eflags; /* per-export flags */ + char zeroes[124]; /* must be sent as zero bytes */ +} __attribute__((packed)); + +#define OLD_VERSION UINT64_C(0x420281861253) + +/* New-style handshake. */ +struct new_handshake { + char nbdmagic[8]; /* "NBDMAGIC" */ + uint64_t version; /* NEW_VERSION */ + uint16_t gflags; /* global flags */ +} __attribute__((packed)); + +#define NEW_VERSION UINT64_C(0x49484156454F5054) + +/* New-style handshake option (sent by the client to us). */ +struct new_option { + uint64_t version; /* NEW_VERSION */ + uint32_t option; /* NBD_OPT_* */ + uint32_t optlen; /* option data length */ + /* option data follows */ +} __attribute__((packed)); + +/* Fixed newstyle handshake reply message. */ +struct fixed_new_option_reply { + uint64_t magic; /* NBD_REP_MAGIC */ + uint32_t option; /* option we are replying to */ + uint32_t reply; /* NBD_REP_* */ + uint32_t replylen; +} __attribute__((packed)); + +#define NBD_REP_MAGIC UINT64_C(0x3e889045565a9) + +/* Global flags. */ +extern const char *name_of_nbd_global_flag (int); +#define NBD_FLAG_FIXED_NEWSTYLE 1 +#define NBD_FLAG_NO_ZEROES 2 + +/* Per-export flags. */ +extern const char *name_of_nbd_flag (int); +#define NBD_FLAG_HAS_FLAGS (1 << 0) +#define NBD_FLAG_READ_ONLY (1 << 1) +#define NBD_FLAG_SEND_FLUSH (1 << 2) +#define NBD_FLAG_SEND_FUA (1 << 3) +#define NBD_FLAG_ROTATIONAL (1 << 4) +#define NBD_FLAG_SEND_TRIM (1 << 5) +#define NBD_FLAG_SEND_WRITE_ZEROES (1 << 6) +#define NBD_FLAG_SEND_DF (1 << 7) +#define NBD_FLAG_CAN_MULTI_CONN (1 << 8) + +/* NBD options (new style handshake only). */ +extern const char *name_of_nbd_opt (int); +#define NBD_OPT_EXPORT_NAME 1 +#define NBD_OPT_ABORT 2 +#define NBD_OPT_LIST 3 +#define NBD_OPT_STARTTLS 5 +#define NBD_OPT_INFO 6 +#define NBD_OPT_GO 7 +#define NBD_OPT_STRUCTURED_REPLY 8 +#define NBD_OPT_LIST_META_CONTEXT 9 +#define NBD_OPT_SET_META_CONTEXT 10 + +#define NBD_REP_ERR(val) (0x80000000 | (val)) +#define NBD_REP_IS_ERR(val) (!!((val) & 0x80000000)) + +extern const char *name_of_nbd_rep (int); +#define NBD_REP_ACK 1 +#define NBD_REP_SERVER 2 +#define NBD_REP_INFO 3 +#define NBD_REP_META_CONTEXT 4 +#define NBD_REP_ERR_UNSUP NBD_REP_ERR (1) +#define NBD_REP_ERR_POLICY NBD_REP_ERR (2) +#define NBD_REP_ERR_INVALID NBD_REP_ERR (3) +#define NBD_REP_ERR_PLATFORM NBD_REP_ERR (4) +#define NBD_REP_ERR_TLS_REQD NBD_REP_ERR (5) + +extern const char *name_of_nbd_info (int); +#define NBD_INFO_EXPORT 0 + +/* NBD_INFO_EXPORT reply (follows fixed_new_option_reply). */ +struct fixed_new_option_reply_info_export { + uint16_t info; /* NBD_INFO_EXPORT */ + uint64_t exportsize; /* size of export */ + uint16_t eflags; /* per-export flags */ +} __attribute__((packed)); + +/* NBD_REP_META_CONTEXT reply (follows fixed_new_option_reply). */ +struct fixed_new_option_reply_meta_context { + uint32_t context_id; /* metadata context ID */ + /* followed by a string */ +} __attribute__((packed)); + +/* NBD_REPLY_TYPE_BLOCK_STATUS block descriptor. */ +struct block_descriptor { + uint32_t length; /* length of block */ + uint32_t status_flags; /* block type (hole etc) */ +} __attribute__((packed)); + +/* New-style handshake server reply when using NBD_OPT_EXPORT_NAME. + * Modern clients use NBD_OPT_GO instead of this. + */ +struct new_handshake_finish { + uint64_t exportsize; + uint16_t eflags; /* per-export flags */ + char zeroes[124]; /* must be sent as zero bytes */ +} __attribute__((packed)); + +/* Request (client -> server). */ +struct request { + uint32_t magic; /* NBD_REQUEST_MAGIC. */ + uint16_t flags; /* Request flags. */ + uint16_t type; /* Request type. */ + uint64_t handle; /* Opaque handle. */ + uint64_t offset; /* Request offset. */ + uint32_t count; /* Request length. */ +} __attribute__((packed)); + +/* Simple reply (server -> client). */ +struct simple_reply { + uint32_t magic; /* NBD_SIMPLE_REPLY_MAGIC. */ + uint32_t error; /* NBD_SUCCESS or one of NBD_E*. */ + uint64_t handle; /* Opaque handle. */ +} __attribute__((packed)); + +/* Structured reply (server -> client). */ +struct structured_reply { + uint32_t magic; /* NBD_STRUCTURED_REPLY_MAGIC. */ + uint16_t flags; /* NBD_REPLY_FLAG_* */ + uint16_t type; /* NBD_REPLY_TYPE_* */ + uint64_t handle; /* Opaque handle. */ + uint32_t length; /* Length of payload which follows. */ +} __attribute__((packed)); + +struct structured_reply_offset_data { + uint64_t offset; /* offset */ + /* Followed by data. */ +} __attribute__((packed)); + +struct structured_reply_error { + uint32_t error; /* NBD_E* error number */ + uint16_t len; /* Length of human readable error. */ + /* Followed by human readable error string. */ +} __attribute__((packed)); + +#define NBD_REQUEST_MAGIC 0x25609513 +#define NBD_SIMPLE_REPLY_MAGIC 0x67446698 +#define NBD_STRUCTURED_REPLY_MAGIC 0x668e33ef + +/* Structured reply flags. */ +extern const char *name_of_nbd_reply_flag (int); +#define NBD_REPLY_FLAG_DONE (1<<0) + +#define NBD_REPLY_TYPE_ERR(val) ((1<<15) | (val)) +#define NBD_REPLY_TYPE_IS_ERR(val) (!!((val) & (1<<15))) + +/* Structured reply types. */ +extern const char *name_of_nbd_reply_type (int); +#define NBD_REPLY_TYPE_NONE 0 +#define NBD_REPLY_TYPE_OFFSET_DATA 1 +#define NBD_REPLY_TYPE_OFFSET_HOLE 2 +#define NBD_REPLY_TYPE_BLOCK_STATUS 5 +#define NBD_REPLY_TYPE_ERROR NBD_REPLY_TYPE_ERR (1) +#define NBD_REPLY_TYPE_ERROR_OFFSET NBD_REPLY_TYPE_ERR (2) + +/* NBD commands. */ +extern const char *name_of_nbd_cmd (int); +#define NBD_CMD_READ 0 +#define NBD_CMD_WRITE 1 +#define NBD_CMD_DISC 2 /* Disconnect. */ +#define NBD_CMD_FLUSH 3 +#define NBD_CMD_TRIM 4 +#define NBD_CMD_WRITE_ZEROES 6 +#define NBD_CMD_BLOCK_STATUS 7 + +extern const char *name_of_nbd_cmd_flag (int); +#define NBD_CMD_FLAG_FUA (1<<0) +#define NBD_CMD_FLAG_NO_HOLE (1<<1) +#define NBD_CMD_FLAG_DF (1<<2) +#define NBD_CMD_FLAG_REQ_ONE (1<<3) + +/* Error codes (previously errno). + * See http://git.qemu.org/?p=qemu.git;a=commitdiff;h=ca4414804114fd0095b317785bc0b51862e62ebb + */ +extern const char *name_of_nbd_error (int); +#define NBD_SUCCESS 0 +#define NBD_EPERM 1 +#define NBD_EIO 5 +#define NBD_ENOMEM 12 +#define NBD_EINVAL 22 +#define NBD_ENOSPC 28 +#define NBD_ESHUTDOWN 108 + +#endif /* NBDKIT_PROTOCOL_H */ diff --git a/common/protocol/protostrings.c b/common/protocol/protostrings.c new file mode 100644 index 0000000..4706791 --- /dev/null +++ b/common/protocol/protostrings.c @@ -0,0 +1,108 @@ +/* Generated from protocol.h by protostrings.sed. */ +#include "protocol.h" + +const char *name_of_nbd_global_flag (int fl) { + switch (fl) { + case NBD_FLAG_FIXED_NEWSTYLE: return "NBD_FLAG_FIXED_NEWSTYLE"; + case NBD_FLAG_NO_ZEROES: return "NBD_FLAG_NO_ZEROES"; + default: return "unknown"; + } +} +const char *name_of_nbd_flag (int fl) { + switch (fl) { + case NBD_FLAG_HAS_FLAGS: return "NBD_FLAG_HAS_FLAGS"; + case NBD_FLAG_READ_ONLY: return "NBD_FLAG_READ_ONLY"; + case NBD_FLAG_SEND_FLUSH: return "NBD_FLAG_SEND_FLUSH"; + case NBD_FLAG_SEND_FUA: return "NBD_FLAG_SEND_FUA"; + case NBD_FLAG_ROTATIONAL: return "NBD_FLAG_ROTATIONAL"; + case NBD_FLAG_SEND_TRIM: return "NBD_FLAG_SEND_TRIM"; + case NBD_FLAG_SEND_WRITE_ZEROES: return "NBD_FLAG_SEND_WRITE_ZEROES"; + case NBD_FLAG_SEND_DF: return "NBD_FLAG_SEND_DF"; + case NBD_FLAG_CAN_MULTI_CONN: return "NBD_FLAG_CAN_MULTI_CONN"; + default: return "unknown"; + } +} +const char *name_of_nbd_opt (int fl) { + switch (fl) { + case NBD_OPT_EXPORT_NAME: return "NBD_OPT_EXPORT_NAME"; + case NBD_OPT_ABORT: return "NBD_OPT_ABORT"; + case NBD_OPT_LIST: return "NBD_OPT_LIST"; + case NBD_OPT_STARTTLS: return "NBD_OPT_STARTTLS"; + case NBD_OPT_INFO: return "NBD_OPT_INFO"; + case NBD_OPT_GO: return "NBD_OPT_GO"; + case NBD_OPT_STRUCTURED_REPLY: return "NBD_OPT_STRUCTURED_REPLY"; + case NBD_OPT_LIST_META_CONTEXT: return "NBD_OPT_LIST_META_CONTEXT"; + case NBD_OPT_SET_META_CONTEXT: return "NBD_OPT_SET_META_CONTEXT"; + default: return "unknown"; + } +} +const char *name_of_nbd_rep (int fl) { + switch (fl) { + case NBD_REP_ACK: return "NBD_REP_ACK"; + case NBD_REP_SERVER: return "NBD_REP_SERVER"; + case NBD_REP_INFO: return "NBD_REP_INFO"; + case NBD_REP_META_CONTEXT: return "NBD_REP_META_CONTEXT"; + case NBD_REP_ERR_UNSUP: return "NBD_REP_ERR_UNSUP"; + case NBD_REP_ERR_POLICY: return "NBD_REP_ERR_POLICY"; + case NBD_REP_ERR_INVALID: return "NBD_REP_ERR_INVALID"; + case NBD_REP_ERR_PLATFORM: return "NBD_REP_ERR_PLATFORM"; + case NBD_REP_ERR_TLS_REQD: return "NBD_REP_ERR_TLS_REQD"; + default: return "unknown"; + } +} +const char *name_of_nbd_info (int fl) { + switch (fl) { + case NBD_INFO_EXPORT: return "NBD_INFO_EXPORT"; + default: return "unknown"; + } +} +const char *name_of_nbd_reply_flag (int fl) { + switch (fl) { + case NBD_REPLY_FLAG_DONE: return "NBD_REPLY_FLAG_DONE"; + default: return "unknown"; + } +} +const char *name_of_nbd_reply_type (int fl) { + switch (fl) { + case NBD_REPLY_TYPE_NONE: return "NBD_REPLY_TYPE_NONE"; + case NBD_REPLY_TYPE_OFFSET_DATA: return "NBD_REPLY_TYPE_OFFSET_DATA"; + case NBD_REPLY_TYPE_OFFSET_HOLE: return "NBD_REPLY_TYPE_OFFSET_HOLE"; + case NBD_REPLY_TYPE_BLOCK_STATUS: return "NBD_REPLY_TYPE_BLOCK_STATUS"; + case NBD_REPLY_TYPE_ERROR: return "NBD_REPLY_TYPE_ERROR"; + case NBD_REPLY_TYPE_ERROR_OFFSET: return "NBD_REPLY_TYPE_ERROR_OFFSET"; + default: return "unknown"; + } +} +const char *name_of_nbd_cmd (int fl) { + switch (fl) { + case NBD_CMD_READ: return "NBD_CMD_READ"; + case NBD_CMD_WRITE: return "NBD_CMD_WRITE"; + case NBD_CMD_DISC: return "NBD_CMD_DISC"; + case NBD_CMD_FLUSH: return "NBD_CMD_FLUSH"; + case NBD_CMD_TRIM: return "NBD_CMD_TRIM"; + case NBD_CMD_WRITE_ZEROES: return "NBD_CMD_WRITE_ZEROES"; + case NBD_CMD_BLOCK_STATUS: return "NBD_CMD_BLOCK_STATUS"; + default: return "unknown"; + } +} +const char *name_of_nbd_cmd_flag (int fl) { + switch (fl) { + case NBD_CMD_FLAG_FUA: return "NBD_CMD_FLAG_FUA"; + case NBD_CMD_FLAG_NO_HOLE: return "NBD_CMD_FLAG_NO_HOLE"; + case NBD_CMD_FLAG_DF: return "NBD_CMD_FLAG_DF"; + case NBD_CMD_FLAG_REQ_ONE: return "NBD_CMD_FLAG_REQ_ONE"; + default: return "unknown"; + } +} +const char *name_of_nbd_error (int fl) { + switch (fl) { + case NBD_SUCCESS: return "NBD_SUCCESS"; + case NBD_EPERM: return "NBD_EPERM"; + case NBD_EIO: return "NBD_EIO"; + case NBD_ENOMEM: return "NBD_ENOMEM"; + case NBD_EINVAL: return "NBD_EINVAL"; + case NBD_ENOSPC: return "NBD_ENOSPC"; + case NBD_ESHUTDOWN: return "NBD_ESHUTDOWN"; + default: return "unknown"; + } +} diff --git a/common/protocol/protostrings.sed b/common/protocol/protostrings.sed new file mode 100644 index 0000000..1731c6b --- /dev/null +++ b/common/protocol/protostrings.sed @@ -0,0 +1,58 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Generate the protostrings.c file from protocol.h. + +# Prologue. +1i\ +/* Generated from protocol.h by protostrings.sed. */\ +\#include "protocol.h"\ + + +# Match the precise sections of the source file. +/^extern const char \*name_of_/,/^$/ { + + # Convert extern function prototype into a definition. + s/extern \(const char \*name_of_.*\) (int);/\1 (int fl) {\ + switch (fl) {/; + + # Convert #define lines into cases. + s/^#define \([_A-Z]*\).*/ case \1: return "\1\";/; + + # Append closing brace. + s/^$/ default: return "unknown";\ + }\ +}/; + + # Print pattern buffer. + p; + +} diff --git a/common/regions/Makefile.am b/common/regions/Makefile.am new file mode 100644 index 0000000..c9e627f --- /dev/null +++ b/common/regions/Makefile.am @@ -0,0 +1,43 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +noinst_LTLIBRARIES = libregions.la + +libregions_la_SOURCES = \ + regions.c \ + regions.h +libregions_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include +libregions_la_CFLAGS = \ + $(WARNINGS_CFLAGS) diff --git a/common/regions/Makefile.in b/common/regions/Makefile.in new file mode 100644 index 0000000..7812132 --- /dev/null +++ b/common/regions/Makefile.in @@ -0,0 +1,762 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +VPATH = @srcdir@ +am__is_gnu_make = { \ + if test -z '$(MAKELEVEL)'; then \ + false; \ + elif test -n '$(MAKE_HOST)'; then \ + true; \ + elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \ + true; \ + else \ + false; \ + fi; \ +} +am__make_running_with_option = \ + case $${target_option-} in \ + ?) ;; \ + *) echo "am__make_running_with_option: internal error: invalid" \ + "target option '$${target_option-}' specified" >&2; \ + exit 1;; \ + esac; \ + has_opt=no; 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conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include + +#include + +#include "isaligned.h" +#include "regions.h" + +void +init_regions (struct regions *regions) +{ + regions->regions = NULL; + regions->nr_regions = 0; +} + +void +free_regions (struct regions *regions) +{ + /* We don't need to free the data since that is not owned by the + * regions structure. + */ + free (regions->regions); +} + +/* Find the region corresponding to the given offset. Use region->end + * to find the end of the region. + */ +static int +compare_offset (const void *offsetp, const void *regionp) +{ + const uint64_t offset = *(uint64_t *)offsetp; + const struct region *region = (struct region *)regionp; + + if (offset < region->start) return -1; + if (offset > region->end) return 1; + return 0; +} + +const struct region * +find_region (const struct regions *regions, uint64_t offset) +{ + return bsearch (&offset, regions->regions, regions->nr_regions, + sizeof (struct region), compare_offset); +} + +/* This is the low level function for constructing the list of + * regions. It appends one region to the list, checking that the + * invariants described above (about the regions being non-overlapping + * and contiguous) is maintained. Note it is not possible to + * construct regions out of order using this function. + */ +static int __attribute__((__nonnull__ (1))) +append_one_region (struct regions *regions, struct region region) +{ + struct region *p; + + /* The assertions in this function are meant to maintain the + * invariant about the array as described at the top of this file. + */ + assert (region.start == virtual_size (regions)); + assert (region.len > 0); + assert (region.end >= region.start); + assert (region.len == region.end - region.start + 1); + + p = realloc (regions->regions, + (regions->nr_regions+1) * sizeof (struct region)); + if (p == NULL) { + nbdkit_error ("realloc: %m"); + return -1; + } + regions->regions = p; + regions->regions[regions->nr_regions] = region; + regions->nr_regions++; + + return 0; +} + +static int +append_padding (struct regions *regions, uint64_t alignment) +{ + struct region region; + + assert (is_power_of_2 (alignment)); + + region.start = virtual_size (regions); + if (IS_ALIGNED (region.start, alignment)) + return 0; /* nothing to do */ + region.end = (region.start & ~(alignment-1)) + alignment - 1; + region.len = region.end - region.start + 1; + region.type = region_zero; + region.description = "padding"; + return append_one_region (regions, region); +} + +int +append_region_len (struct regions *regions, + const char *description, uint64_t len, + uint64_t pre_aligment, uint64_t post_alignment, + enum region_type type, ...) +{ + struct region region; + + /* Pre-alignment. */ + if (pre_aligment != 0) { + if (append_padding (regions, pre_aligment) == -1) + return -1; + assert (IS_ALIGNED (virtual_size (regions), pre_aligment)); + } + + /* Main region. */ + region.description = description; + region.start = virtual_size (regions); + region.len = len; + region.end = region.start + region.len - 1; + region.type = type; + if (type == region_file) { + va_list ap; + size_t i; + + va_start (ap, type); + i = va_arg (ap, size_t); + va_end (ap); + region.u.i = i; + } + else if (type == region_data) { + va_list ap; + const unsigned char *data; + + va_start (ap, type); + data = va_arg (ap, const unsigned char *); + va_end (ap); + region.u.data = data; + } + if (append_one_region (regions, region) == -1) + return -1; + + /* Post-alignment. */ + if (post_alignment != 0) { + if (append_padding (regions, post_alignment) == -1) + return -1; + assert (IS_ALIGNED (virtual_size (regions), post_alignment)); + } + + return 0; +} diff --git a/common/regions/regions.h b/common/regions/regions.h new file mode 100644 index 0000000..d6ab585 --- /dev/null +++ b/common/regions/regions.h @@ -0,0 +1,146 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_REGIONS_H +#define NBDKIT_REGIONS_H + +#include +#include +#include + +/* This defines a very simple structure used to define the virtual + * disk in the partitioning and floppy plugins. + * + * We split the virtual disk into non-overlapping, contiguous regions. + * These are stored in an array, ordered by address. + * + * Each region can be one of several types, referring to a backing + * file, some data stored in memory, or zero padding. + */ + +/* Region type. */ +enum region_type { + region_file, /* contents of the i'th file */ + region_data, /* pointer to in-memory data */ + region_zero, /* padding */ +}; + +/* Region. */ +struct region { + uint64_t start, len, end; /* byte offsets; end = start + len - 1 */ + enum region_type type; + union { + size_t i; /* region_file: i'th file */ + const unsigned char *data; /* region_data: data */ + } u; + + /* Optional name or description of this region. This is not used by + * the regions code but can be added to regions to make debugging + * easier. + */ + const char *description; +}; + +/* Array of regions. */ +struct regions { + struct region *regions; + size_t nr_regions; +}; + +extern void init_regions (struct regions *regions) + __attribute__((__nonnull__ (1))); +extern void free_regions (struct regions *regions) + __attribute__((__nonnull__ (1))); + +/* Return the number of regions. */ +static inline size_t __attribute__((__nonnull__ (1))) +nr_regions (struct regions *regions) +{ + return regions->nr_regions; +} + +/* Return the virtual size of the disk. */ +static inline int64_t __attribute__((__nonnull__ (1))) +virtual_size (struct regions *regions) +{ + if (regions->nr_regions == 0) + return 0; + else + return regions->regions[regions->nr_regions-1].end + 1; +} + +/* Look up the region corresponding to the given offset. If the + * offset is inside the disk image then this cannot return NULL. + */ +extern const struct region *find_region (const struct regions *regions, + uint64_t offset) + __attribute__((__nonnull__ (1))); + +/* Append one region of a given length, plus up to two optional + * padding regions. + * + * pre_aligment (if != 0) describes the required alignment of this + * region. A padding region of type region_zero is inserted before + * the main region if required. + * + * post_alignment (if != 0) describes the required alignment after + * this region. A padding region of type region_zero is inserted + * after the main region if required. + * + * If type == region_file, it must be followed by u.i parameter. + * If type == region_data, it must be followed by u.data parameter. + */ +extern int append_region_len (struct regions *regions, + const char *description, uint64_t len, + uint64_t pre_aligment, uint64_t post_alignment, + enum region_type type, ...); + +#if 0 +/* Same as append_region_len (above) but instead of specifying the + * size of the main region, specify the end byte as an offset. Note + * the end byte is included in the region, it's is NOT the end+1 byte. + */ +extern int append_region_end (struct regions *regions, + const char *description, uint64_t end, + uint64_t pre_aligment, uint64_t post_alignment, + enum region_type type, ...); +#endif + +/* Used when iterating over the list of regions. */ +static inline const struct region * __attribute__((__nonnull__ (1))) +get_region (const struct regions *regions, size_t i) +{ + assert (i < regions->nr_regions); + return ®ions->regions[i]; +} + +#endif /* NBDKIT_REGIONS_H */ diff --git a/common/sparse/Makefile.am b/common/sparse/Makefile.am new file mode 100644 index 0000000..6e29a1e --- /dev/null +++ b/common/sparse/Makefile.am @@ -0,0 +1,43 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +noinst_LTLIBRARIES = libsparse.la + +libsparse_la_SOURCES = \ + sparse.c \ + sparse.h +libsparse_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include +libsparse_la_CFLAGS = \ + $(WARNINGS_CFLAGS) diff --git a/common/sparse/Makefile.in b/common/sparse/Makefile.in new file mode 100644 index 0000000..342a35d --- /dev/null +++ b/common/sparse/Makefile.in @@ -0,0 +1,762 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "iszero.h" +#include "sparse.h" + +/* Two level directory for the sparse array. + * + * nbdkit supports disk sizes up to 2⁶³-1. The aim of the sparse + * array is to support up to 63 bit images for testing, although it + * won't necessarily be efficient for that use. However it should + * also be efficient for more reasonable sized disks. + * + * Although the CPU implements effectively the same kind of data + * structure (page tables) there are some advantages of reimplementing + * this: + * + * 1. Support for 32 bit (or even 64 bit since the virtual memory + * address space on 64 bit machines is not 63 bits in size). + * + * 2. In Linux, overcommit defaults prevent use of virtual memory as a + * sparse array without intrusive system configuration changes. + * + * 3. Could choose a page size which is more appropriate for disk + * images, plus some architectures have much larger page sizes than + * others making behaviour inconsistent across arches. + * + * To achieve this we use a B-Tree-like structure. The L1 directory + * contains an ordered, non-overlapping, non-contiguous list of + * (offset, pointer to L2 directory). + * + * Updating the L1 directory requires a linear scan but that operation + * should be very rare. Because the L1 directory is stored in order + * of offset, we can use an efficient binary search for lookups. + * + * Each L1 directory entry can address up to PAGE_SIZE*L2_SIZE bytes + * in the virtual disk image. With the current parameters this is + * 128MB, which is enough for a 100MB image to fit into a single L1 + * directory, or a 10GB image to fit into 80 L1 entries. The page + * pointers in the L2 directory can be NULL (meaning no page / all + * zeroes). + * + * ┌────────────────────┐ + * │ L1 directory │ ┌────────────────────┐ + * │ offset, entry 0 ─────────▶ | L2 directory | + * │ offset, entry 1 │ | page 0 ─────────▶ page + * │ offset, entry 2 │ │ page 1 ─────────▶ page + * │ ... │ │ page 2 ─────────▶ page + * └────────────────────┘ │ ... │ + * │ page L2_SIZE-1 ─────────▶ page + * └────────────────────┘ + */ +#define PAGE_SIZE 32768 +#define L2_SIZE 4096 + +struct l1_entry { + uint64_t offset; /* Virtual offset of this entry. */ + void **l2_dir; /* Pointer to L2 directory. */ +}; + +struct sparse_array { + struct l1_entry *l1_dir; /* L1 directory. */ + size_t l1_size; /* Number of entries in L1 directory. */ + bool debug; +}; + +/* Free L1 and/or L2 directories. */ +static void +free_l2_dir (void **l2_dir) +{ + size_t i; + + for (i = 0; i < L2_SIZE; ++i) + free (l2_dir[i]); + free (l2_dir); +} + +void +free_sparse_array (struct sparse_array *sa) +{ + size_t i; + + if (sa) { + for (i = 0; i < sa->l1_size; ++i) + free_l2_dir (sa->l1_dir[i].l2_dir); + free (sa->l1_dir); + free (sa); + } +} + +struct sparse_array * +alloc_sparse_array (bool debug) +{ + struct sparse_array *sa; + + sa = malloc (sizeof *sa); + if (sa == NULL) + return NULL; + sa->l1_dir = NULL; + sa->l1_size = 0; + sa->debug = debug; + return sa; +} + +/* Comparison function used when searching through the L1 directory. */ +static int +compare_l1_offsets (const void *offsetp, const void *entryp) +{ + const uint64_t offset = *(uint64_t *)offsetp; + const struct l1_entry *e = entryp; + + if (offset < e->offset) return -1; + if (offset >= e->offset + PAGE_SIZE*L2_SIZE) return 1; + return 0; +} + +/* Insert an entry in the L1 directory, keeping it ordered by offset. + * This involves an expensive linear scan but should be very rare. + */ +static int +insert_l1_entry (struct sparse_array *sa, const struct l1_entry *entry) +{ + size_t i; + struct l1_entry *old_l1_dir = sa->l1_dir; + + /* The l1_dir always ends up one bigger, so reallocate it first. */ + sa->l1_dir = realloc (sa->l1_dir, (sa->l1_size+1) * sizeof (struct l1_entry)); + if (sa->l1_dir == NULL) { + sa->l1_dir = old_l1_dir; + nbdkit_error ("realloc"); + return -1; + } + + for (i = 0; i < sa->l1_size; ++i) { + if (entry->offset < sa->l1_dir[i].offset) { + /* Insert new entry before i'th directory entry. */ + memmove (&sa->l1_dir[i+1], &sa->l1_dir[i], + (sa->l1_size-i) * sizeof (struct l1_entry)); + sa->l1_dir[i] = *entry; + sa->l1_size++; + if (sa->debug) + nbdkit_debug ("%s: inserted new L1 entry for %" PRIu64 + " at l1_dir[%zu]", + __func__, entry->offset, i); + return 0; + } + + /* This should never happens since each entry in the the L1 + * directory is supposed to be unique. + */ + assert (entry->offset != sa->l1_dir[i].offset); + } + + /* Insert new entry at the end. */ + sa->l1_dir[sa->l1_size] = *entry; + sa->l1_size++; + if (sa->debug) + nbdkit_debug ("%s: inserted new L1 entry for %" PRIu64 + " at end of l1_dir", __func__, entry->offset); + return 0; +} + +/* Look up a virtual offset, returning the address of the offset, the + * count of bytes to the end of the page, and a pointer to the L2 + * directory entry containing the page pointer. + * + * If the create flag is set then a new page and/or directory will be + * allocated if necessary. Use this flag when writing. + * + * NULL may be returned normally if the page is not mapped (meaning it + * reads as zero). However if the create flag is set and NULL is + * returned, this indicates an error. + */ +static void * +lookup (struct sparse_array *sa, uint64_t offset, bool create, + uint32_t *remaining, void ***l2_page) +{ + struct l1_entry *entry; + void **l2_dir; + uint64_t o; + void *page; + struct l1_entry new_entry; + + *remaining = PAGE_SIZE - (offset & (PAGE_SIZE-1)); + + again: + /* Search the L1 directory. */ + entry = bsearch (&offset, sa->l1_dir, sa->l1_size, sizeof (struct l1_entry), + compare_l1_offsets); + + if (sa->debug) { + if (entry) + nbdkit_debug ("%s: search L1 dir: entry found: offset %" PRIu64, + __func__, entry->offset); + else + nbdkit_debug ("%s: search L1 dir: no entry found", __func__); + } + + if (entry) { + l2_dir = entry->l2_dir; + + /* Which page in the L2 directory? */ + o = (offset - entry->offset) / PAGE_SIZE; + if (l2_page) + *l2_page = &l2_dir[o]; + page = l2_dir[o]; + if (!page && create) { + /* No page allocated. Allocate one if creating. */ + page = calloc (PAGE_SIZE, 1); + if (page == NULL) { + nbdkit_error ("calloc"); + return NULL; + } + l2_dir[o] = page; + } + if (!page) + return NULL; + else + return page + (offset & (PAGE_SIZE-1)); + } + + /* No L1 directory entry found. */ + if (!create) + return NULL; + + /* No L1 directory entry, and we're creating, so we need to allocate + * a new L1 directory entry and insert it in the L1 directory, and + * allocate the L2 directory with NULL page pointers. Then we can + * repeat the above search to create the page. + */ + new_entry.offset = offset & ~(PAGE_SIZE*L2_SIZE-1); + new_entry.l2_dir = calloc (L2_SIZE, sizeof (void *)); + if (new_entry.l2_dir == NULL) { + nbdkit_error ("calloc"); + return NULL; + } + if (insert_l1_entry (sa, &new_entry) == -1) { + free (new_entry.l2_dir); + return NULL; + } + goto again; +} + +void +sparse_array_read (struct sparse_array *sa, + void *buf, uint32_t count, uint64_t offset) +{ + uint32_t n; + void *p; + + while (count > 0) { + p = lookup (sa, offset, false, &n, NULL); + if (n > count) + n = count; + + if (p == NULL) + memset (buf, 0, n); + else + memcpy (buf, p, n); + + buf += n; + count -= n; + offset += n; + } +} + +int +sparse_array_write (struct sparse_array *sa, + const void *buf, uint32_t count, uint64_t offset) +{ + uint32_t n; + void *p; + + while (count > 0) { + p = lookup (sa, offset, true, &n, NULL); + if (p == NULL) + return -1; + + if (n > count) + n = count; + memcpy (p, buf, n); + + buf += n; + count -= n; + offset += n; + } + + return 0; +} + +void +sparse_array_zero (struct sparse_array *sa, uint32_t count, uint64_t offset) +{ + uint32_t n; + void *p; + void **l2_page; + + while (count > 0) { + p = lookup (sa, offset, false, &n, &l2_page); + if (n > count) + n = count; + + if (p) { + memset (p, 0, n); + + /* If the whole page is now zero, free it. */ + if (is_zero (*l2_page, PAGE_SIZE)) { + if (sa->debug) + nbdkit_debug ("%s: freeing zero page at offset %" PRIu64, + __func__, offset); + free (*l2_page); + *l2_page = NULL; + } + } + + count -= n; + offset += n; + } +} + +int +sparse_array_extents (struct sparse_array *sa, + uint32_t count, uint64_t offset, + struct nbdkit_extents *extents) +{ + uint32_t n, type; + void *p; + + while (count > 0) { + p = lookup (sa, offset, false, &n, NULL); + if (n > count) + n = count; + + /* Work out the type of this extent. */ + if (p == NULL) + /* No backing page, so it's a hole. */ + type = NBDKIT_EXTENT_HOLE | NBDKIT_EXTENT_ZERO; + else { + if (is_zero (p, n)) + /* A backing page and it's all zero, it's a zero extent. */ + type = NBDKIT_EXTENT_ZERO; + else + /* Normal allocated data. */ + type = 0; + } + if (nbdkit_add_extent (extents, offset, n, type) == -1) + return -1; + + count -= n; + offset += n; + } + + return 0; +} diff --git a/common/sparse/sparse.h b/common/sparse/sparse.h new file mode 100644 index 0000000..704ba32 --- /dev/null +++ b/common/sparse/sparse.h @@ -0,0 +1,94 @@ +/* nbdkit + * Copyright (C) 2017-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_SPARSE_H +#define NBDKIT_SPARSE_H + +#include + +#include + +/* This library implements a sparse array of any size up to 2⁶³-1 + * bytes. + * + * The array reads as zeroes until something is written. + * + * The implementation aims to be reasonably efficient for ordinary + * sized disks, while permitting huge (but sparse) disks for testing. + * Everything allocated has to be stored in memory. There is no + * temporary file backing. + * + * The implementation is not protected by locks and issuing parallel + * calls will cause corruption. If your plugin uses this library you + * will probably need to use a suitable thread model such as + * SERIALIZE_ALL_REQUESTS. + */ +struct sparse_array; + +/* Allocate the empty sparse array. */ +struct sparse_array *alloc_sparse_array (bool debug); + +/* Free sparse array. */ +extern void free_sparse_array (struct sparse_array *sa); + +/* Read bytes from the sparse array. + * Note this can never return an error and never allocates. + */ +extern void sparse_array_read (struct sparse_array *sa, void *buf, + uint32_t count, uint64_t offset) + __attribute__((__nonnull__ (1, 2))); + +/* Write bytes to the sparse array. + * This can allocate and can return an error. + */ +extern int sparse_array_write (struct sparse_array *sa, const void *buf, + uint32_t count, uint64_t offset) + __attribute__((__nonnull__ (1, 2))); + +/* Zero byte range in the sparse array. + * + * Zeroing and trimming are the same operation (this implementation + * does not preallocate, since it's not worthwhile for an in-memory + * data structure). + * + * This may free memory, but never returns an error. + */ +extern void sparse_array_zero (struct sparse_array *sa, + uint32_t count, uint64_t offset) + __attribute__((__nonnull__ (1))); + +/* Return information about allocated pages and holes. */ +extern int sparse_array_extents (struct sparse_array *sa, + uint32_t count, uint64_t offset, + struct nbdkit_extents *extents); + +#endif /* NBDKIT_SPARSE_H */ diff --git a/common/utils/Makefile.am b/common/utils/Makefile.am new file mode 100644 index 0000000..1773ece --- /dev/null +++ b/common/utils/Makefile.am @@ -0,0 +1,42 @@ +# nbdkit +# Copyright (C) 2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +noinst_LTLIBRARIES = libutils.la + +libutils_la_SOURCES = \ + utils.c \ + utils.h +libutils_la_CPPFLAGS = \ + -I$(top_srcdir)/include +libutils_la_CFLAGS = \ + $(WARNINGS_CFLAGS) diff --git a/common/utils/Makefile.in b/common/utils/Makefile.in new file mode 100644 index 0000000..f3363a1 --- /dev/null +++ b/common/utils/Makefile.in @@ -0,0 +1,761 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +VPATH = @srcdir@ +am__is_gnu_make = { \ + if test -z '$(MAKELEVEL)'; then \ + false; \ + elif test -n '$(MAKE_HOST)'; then \ + true; \ + elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \ + true; \ + else \ + false; \ + fi; \ +} +am__make_running_with_option = \ + case $${target_option-} in \ + ?) ;; \ + *) echo "am__make_running_with_option: internal error: invalid" \ + "target option '$${target_option-}' specified" >&2; \ + exit 1;; \ + esac; \ + has_opt=no; 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above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include + +#include + +/* Print str to fp, shell quoting if necessary. This comes from + * libguestfs, but was written by me so I'm relicensing it to a BSD + * license for nbdkit. + */ +void +shell_quote (const char *str, FILE *fp) +{ + /* Note possible bug in this list (XXX): + * https://www.redhat.com/archives/libguestfs/2019-February/msg00036.html + */ + const char *safe_chars = + "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-_=,:/"; + size_t i, len; + + /* If the string consists only of safe characters, output it as-is. */ + len = strlen (str); + if (len == strspn (str, safe_chars)) { + fputs (str, fp); + return; + } + + /* Double-quote the string. */ + fputc ('"', fp); + for (i = 0; i < len; ++i) { + switch (str[i]) { + case '$': case '`': case '\\': case '"': + fputc ('\\', fp); + /*FALLTHROUGH*/ + default: + fputc (str[i], fp); + } + } + fputc ('"', fp); +} + +/* Convert exit status to nbd_error. If the exit status was nonzero + * or another failure then -1 is returned. + */ +int +exit_status_to_nbd_error (int status, const char *cmd) +{ + if (WIFEXITED (status) && WEXITSTATUS (status) != 0) { + nbdkit_error ("%s: command failed with exit code %d", + cmd, WEXITSTATUS (status)); + return -1; + } + else if (WIFSIGNALED (status)) { + nbdkit_error ("%s: command was killed by signal %d", + cmd, WTERMSIG (status)); + return -1; + } + else if (WIFSTOPPED (status)) { + nbdkit_error ("%s: command was stopped by signal %d", + cmd, WSTOPSIG (status)); + return -1; + } + + return 0; +} diff --git a/common/utils/utils.h b/common/utils/utils.h new file mode 100644 index 0000000..4d1abf0 --- /dev/null +++ b/common/utils/utils.h @@ -0,0 +1,39 @@ +/* nbdkit + * Copyright (C) 2018-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_UTILS_H +#define NBDKIT_UTILS_H + +extern void shell_quote (const char *str, FILE *fp); +extern int exit_status_to_nbd_error (int status, const char *cmd); + +#endif /* NBDKIT_UTILS_H */ diff --git a/compile b/compile new file mode 100755 index 0000000..99e5052 --- /dev/null +++ b/compile @@ -0,0 +1,348 @@ +#! /bin/sh +# Wrapper for compilers which do not understand '-c -o'. + +scriptversion=2018-03-07.03; # UTC + +# Copyright (C) 1999-2018 Free Software Foundation, Inc. +# Written by Tom Tromey . +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + +# This file is maintained in Automake, please report +# bugs to or send patches to +# . + +nl=' +' + +# We need space, tab and new line, in precisely that order. Quoting is +# there to prevent tools from complaining about whitespace usage. +IFS=" "" $nl" + +file_conv= + +# func_file_conv build_file lazy +# Convert a $build file to $host form and store it in $file +# Currently only supports Windows hosts. If the determined conversion +# type is listed in (the comma separated) LAZY, no conversion will +# take place. +func_file_conv () +{ + file=$1 + case $file in + / | /[!/]*) # absolute file, and not a UNC file + if test -z "$file_conv"; then + # lazily determine how to convert abs files + case `uname -s` in + MINGW*) + file_conv=mingw + ;; + CYGWIN*) + file_conv=cygwin + ;; + *) + file_conv=wine + ;; + esac + fi + case $file_conv/,$2, in + *,$file_conv,*) + ;; + mingw/*) + file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'` + ;; + cygwin/*) + file=`cygpath -m "$file" || echo "$file"` + ;; + wine/*) + file=`winepath -w "$file" || echo "$file"` + ;; + esac + ;; + esac +} + +# func_cl_dashL linkdir +# Make cl look for libraries in LINKDIR +func_cl_dashL () +{ + func_file_conv "$1" + if test -z "$lib_path"; then + lib_path=$file + else + lib_path="$lib_path;$file" + fi + linker_opts="$linker_opts -LIBPATH:$file" +} + +# func_cl_dashl library +# Do a library search-path lookup for cl +func_cl_dashl () +{ + lib=$1 + found=no + save_IFS=$IFS + IFS=';' + for dir in $lib_path $LIB + do + IFS=$save_IFS + if $shared && test -f "$dir/$lib.dll.lib"; then + found=yes + lib=$dir/$lib.dll.lib + break + fi + if test -f "$dir/$lib.lib"; then + found=yes + lib=$dir/$lib.lib + break + fi + if test -f "$dir/lib$lib.a"; then + found=yes + lib=$dir/lib$lib.a + break + fi + done + IFS=$save_IFS + + if test "$found" != yes; then + lib=$lib.lib + fi +} + +# func_cl_wrapper cl arg... +# Adjust compile command to suit cl +func_cl_wrapper () +{ + # Assume a capable shell + lib_path= + shared=: + linker_opts= + for arg + do + if test -n "$eat"; then + eat= + else + case $1 in + -o) + # configure might choose to run compile as 'compile cc -o foo foo.c'. + eat=1 + case $2 in + *.o | *.[oO][bB][jJ]) + func_file_conv "$2" + set x "$@" -Fo"$file" + shift + ;; + *) + func_file_conv "$2" + set x "$@" -Fe"$file" + shift + ;; + esac + ;; + -I) + eat=1 + func_file_conv "$2" mingw + set x "$@" -I"$file" + shift + ;; + -I*) + func_file_conv "${1#-I}" mingw + set x "$@" -I"$file" + shift + ;; + -l) + eat=1 + func_cl_dashl "$2" + set x "$@" "$lib" + shift + ;; + -l*) + func_cl_dashl "${1#-l}" + set x "$@" "$lib" + shift + ;; + -L) + eat=1 + func_cl_dashL "$2" + ;; + -L*) + func_cl_dashL "${1#-L}" + ;; + -static) + shared=false + ;; + -Wl,*) + arg=${1#-Wl,} + save_ifs="$IFS"; IFS=',' + for flag in $arg; do + IFS="$save_ifs" + linker_opts="$linker_opts $flag" + done + IFS="$save_ifs" + ;; + -Xlinker) + eat=1 + linker_opts="$linker_opts $2" + ;; + -*) + set x "$@" "$1" + shift + ;; + *.cc | *.CC | *.cxx | *.CXX | *.[cC]++) + func_file_conv "$1" + set x "$@" -Tp"$file" + shift + ;; + *.c | *.cpp | *.CPP | *.lib | *.LIB | *.Lib | *.OBJ | *.obj | *.[oO]) + func_file_conv "$1" mingw + set x "$@" "$file" + shift + ;; + *) + set x "$@" "$1" + shift + ;; + esac + fi + shift + done + if test -n "$linker_opts"; then + linker_opts="-link$linker_opts" + fi + exec "$@" $linker_opts + exit 1 +} + +eat= + +case $1 in + '') + echo "$0: No command. Try '$0 --help' for more information." 1>&2 + exit 1; + ;; + -h | --h*) + cat <<\EOF +Usage: compile [--help] [--version] PROGRAM [ARGS] + +Wrapper for compilers which do not understand '-c -o'. +Remove '-o dest.o' from ARGS, run PROGRAM with the remaining +arguments, and rename the output as expected. + +If you are trying to build a whole package this is not the +right script to run: please start by reading the file 'INSTALL'. + +Report bugs to . +EOF + exit $? + ;; + -v | --v*) + echo "compile $scriptversion" + exit $? + ;; + cl | *[/\\]cl | cl.exe | *[/\\]cl.exe | \ + icl | *[/\\]icl | icl.exe | *[/\\]icl.exe ) + func_cl_wrapper "$@" # Doesn't return... + ;; +esac + +ofile= +cfile= + +for arg +do + if test -n "$eat"; then + eat= + else + case $1 in + -o) + # configure might choose to run compile as 'compile cc -o foo foo.c'. + # So we strip '-o arg' only if arg is an object. + eat=1 + case $2 in + *.o | *.obj) + ofile=$2 + ;; + *) + set x "$@" -o "$2" + shift + ;; + esac + ;; + *.c) + cfile=$1 + set x "$@" "$1" + shift + ;; + *) + set x "$@" "$1" + shift + ;; + esac + fi + shift +done + +if test -z "$ofile" || test -z "$cfile"; then + # If no '-o' option was seen then we might have been invoked from a + # pattern rule where we don't need one. That is ok -- this is a + # normal compilation that the losing compiler can handle. If no + # '.c' file was seen then we are probably linking. That is also + # ok. + exec "$@" +fi + +# Name of file we expect compiler to create. +cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'` + +# Create the lock directory. +# Note: use '[/\\:.-]' here to ensure that we don't use the same name +# that we are using for the .o file. Also, base the name on the expected +# object file name, since that is what matters with a parallel build. +lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d +while true; do + if mkdir "$lockdir" >/dev/null 2>&1; then + break + fi + sleep 1 +done +# FIXME: race condition here if user kills between mkdir and trap. +trap "rmdir '$lockdir'; exit 1" 1 2 15 + +# Run the compile. +"$@" +ret=$? + +if test -f "$cofile"; then + test "$cofile" = "$ofile" || mv "$cofile" "$ofile" +elif test -f "${cofile}bj"; then + test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile" +fi + +rmdir "$lockdir" +exit $ret + +# Local Variables: +# mode: shell-script +# sh-indentation: 2 +# eval: (add-hook 'before-save-hook 'time-stamp) +# time-stamp-start: "scriptversion=" +# time-stamp-format: "%:y-%02m-%02d.%02H" +# time-stamp-time-zone: "UTC0" +# time-stamp-end: "; # UTC" +# End: diff --git a/config.guess b/config.guess new file mode 100755 index 0000000..256083a --- /dev/null +++ b/config.guess @@ -0,0 +1,1476 @@ +#! /bin/sh +# Attempt to guess a canonical system name. +# Copyright 1992-2018 Free Software Foundation, Inc. + +timestamp='2018-03-08' + +# This file is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, see . +# +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that +# program. This Exception is an additional permission under section 7 +# of the GNU General Public License, version 3 ("GPLv3"). +# +# Originally written by Per Bothner; maintained since 2000 by Ben Elliston. +# +# You can get the latest version of this script from: +# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess +# +# Please send patches to . + + +me=`echo "$0" | sed -e 's,.*/,,'` + +usage="\ +Usage: $0 [OPTION] + +Output the configuration name of the system \`$me' is run on. + +Options: + -h, --help print this help, then exit + -t, --time-stamp print date of last modification, then exit + -v, --version print version number, then exit + +Report bugs and patches to ." + +version="\ +GNU config.guess ($timestamp) + +Originally written by Per Bothner. +Copyright 1992-2018 Free Software Foundation, Inc. + +This is free software; see the source for copying conditions. There is NO +warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE." + +help=" +Try \`$me --help' for more information." + +# Parse command line +while test $# -gt 0 ; do + case $1 in + --time-stamp | --time* | -t ) + echo "$timestamp" ; exit ;; + --version | -v ) + echo "$version" ; exit ;; + --help | --h* | -h ) + echo "$usage"; exit ;; + -- ) # Stop option processing + shift; break ;; + - ) # Use stdin as input. + break ;; + -* ) + echo "$me: invalid option $1$help" >&2 + exit 1 ;; + * ) + break ;; + esac +done + +if test $# != 0; then + echo "$me: too many arguments$help" >&2 + exit 1 +fi + +trap 'exit 1' 1 2 15 + +# CC_FOR_BUILD -- compiler used by this script. Note that the use of a +# compiler to aid in system detection is discouraged as it requires +# temporary files to be created and, as you can see below, it is a +# headache to deal with in a portable fashion. + +# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still +# use `HOST_CC' if defined, but it is deprecated. + +# Portable tmp directory creation inspired by the Autoconf team. + +set_cc_for_build=' +trap "exitcode=\$?; (rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null) && exit \$exitcode" 0 ; +trap "rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null; exit 1" 1 2 13 15 ; +: ${TMPDIR=/tmp} ; + { tmp=`(umask 077 && mktemp -d "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" ; } || + { test -n "$RANDOM" && tmp=$TMPDIR/cg$$-$RANDOM && (umask 077 && mkdir $tmp) ; } || + { tmp=$TMPDIR/cg-$$ && (umask 077 && mkdir $tmp) && echo "Warning: creating insecure temp directory" >&2 ; } || + { echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; } ; +dummy=$tmp/dummy ; +tmpfiles="$dummy.c $dummy.o $dummy.rel $dummy" ; +case $CC_FOR_BUILD,$HOST_CC,$CC in + ,,) echo "int x;" > "$dummy.c" ; + for c in cc gcc c89 c99 ; do + if ($c -c -o "$dummy.o" "$dummy.c") >/dev/null 2>&1 ; then + CC_FOR_BUILD="$c"; break ; + fi ; + done ; + if test x"$CC_FOR_BUILD" = x ; then + CC_FOR_BUILD=no_compiler_found ; + fi + ;; + ,,*) CC_FOR_BUILD=$CC ;; + ,*,*) CC_FOR_BUILD=$HOST_CC ;; +esac ; set_cc_for_build= ;' + +# This is needed to find uname on a Pyramid OSx when run in the BSD universe. +# (ghazi@noc.rutgers.edu 1994-08-24) +if (test -f /.attbin/uname) >/dev/null 2>&1 ; then + PATH=$PATH:/.attbin ; export PATH +fi + +UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown +UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown +UNAME_SYSTEM=`(uname -s) 2>/dev/null` || UNAME_SYSTEM=unknown +UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown + +case "$UNAME_SYSTEM" in +Linux|GNU|GNU/*) + # If the system lacks a compiler, then just pick glibc. + # We could probably try harder. + LIBC=gnu + + eval "$set_cc_for_build" + cat <<-EOF > "$dummy.c" + #include + #if defined(__UCLIBC__) + LIBC=uclibc + #elif defined(__dietlibc__) + LIBC=dietlibc + #else + LIBC=gnu + #endif + EOF + eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^LIBC' | sed 's, ,,g'`" + + # If ldd exists, use it to detect musl libc. + if command -v ldd >/dev/null && \ + ldd --version 2>&1 | grep -q ^musl + then + LIBC=musl + fi + ;; +esac + +# Note: order is significant - the case branches are not exclusive. + +case "$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in + *:NetBSD:*:*) + # NetBSD (nbsd) targets should (where applicable) match one or + # more of the tuples: *-*-netbsdelf*, *-*-netbsdaout*, + # *-*-netbsdecoff* and *-*-netbsd*. For targets that recently + # switched to ELF, *-*-netbsd* would select the old + # object file format. This provides both forward + # compatibility and a consistent mechanism for selecting the + # object file format. + # + # Note: NetBSD doesn't particularly care about the vendor + # portion of the name. We always set it to "unknown". + sysctl="sysctl -n hw.machine_arch" + UNAME_MACHINE_ARCH=`(uname -p 2>/dev/null || \ + "/sbin/$sysctl" 2>/dev/null || \ + "/usr/sbin/$sysctl" 2>/dev/null || \ + echo unknown)` + case "$UNAME_MACHINE_ARCH" in + armeb) machine=armeb-unknown ;; + arm*) machine=arm-unknown ;; + sh3el) machine=shl-unknown ;; + sh3eb) machine=sh-unknown ;; + sh5el) machine=sh5le-unknown ;; + earmv*) + arch=`echo "$UNAME_MACHINE_ARCH" | sed -e 's,^e\(armv[0-9]\).*$,\1,'` + endian=`echo "$UNAME_MACHINE_ARCH" | sed -ne 's,^.*\(eb\)$,\1,p'` + machine="${arch}${endian}"-unknown + ;; + *) machine="$UNAME_MACHINE_ARCH"-unknown ;; + esac + # The Operating System including object format, if it has switched + # to ELF recently (or will in the future) and ABI. + case "$UNAME_MACHINE_ARCH" in + earm*) + os=netbsdelf + ;; + arm*|i386|m68k|ns32k|sh3*|sparc|vax) + eval "$set_cc_for_build" + if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \ + | grep -q __ELF__ + then + # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout). + # Return netbsd for either. FIX? + os=netbsd + else + os=netbsdelf + fi + ;; + *) + os=netbsd + ;; + esac + # Determine ABI tags. + case "$UNAME_MACHINE_ARCH" in + earm*) + expr='s/^earmv[0-9]/-eabi/;s/eb$//' + abi=`echo "$UNAME_MACHINE_ARCH" | sed -e "$expr"` + ;; + esac + # The OS release + # Debian GNU/NetBSD machines have a different userland, and + # thus, need a distinct triplet. However, they do not need + # kernel version information, so it can be replaced with a + # suitable tag, in the style of linux-gnu. + case "$UNAME_VERSION" in + Debian*) + release='-gnu' + ;; + *) + release=`echo "$UNAME_RELEASE" | sed -e 's/[-_].*//' | cut -d. -f1,2` + ;; + esac + # Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM: + # contains redundant information, the shorter form: + # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used. + echo "$machine-${os}${release}${abi}" + exit ;; + *:Bitrig:*:*) + UNAME_MACHINE_ARCH=`arch | sed 's/Bitrig.//'` + echo "$UNAME_MACHINE_ARCH"-unknown-bitrig"$UNAME_RELEASE" + exit ;; + *:OpenBSD:*:*) + UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'` + echo "$UNAME_MACHINE_ARCH"-unknown-openbsd"$UNAME_RELEASE" + exit ;; + *:LibertyBSD:*:*) + UNAME_MACHINE_ARCH=`arch | sed 's/^.*BSD\.//'` + echo "$UNAME_MACHINE_ARCH"-unknown-libertybsd"$UNAME_RELEASE" + exit ;; + *:MidnightBSD:*:*) + echo "$UNAME_MACHINE"-unknown-midnightbsd"$UNAME_RELEASE" + exit ;; + *:ekkoBSD:*:*) + echo "$UNAME_MACHINE"-unknown-ekkobsd"$UNAME_RELEASE" + exit ;; + *:SolidBSD:*:*) + echo "$UNAME_MACHINE"-unknown-solidbsd"$UNAME_RELEASE" + exit ;; + macppc:MirBSD:*:*) + echo powerpc-unknown-mirbsd"$UNAME_RELEASE" + exit ;; + *:MirBSD:*:*) + echo "$UNAME_MACHINE"-unknown-mirbsd"$UNAME_RELEASE" + exit ;; + *:Sortix:*:*) + echo "$UNAME_MACHINE"-unknown-sortix + exit ;; + *:Redox:*:*) + echo "$UNAME_MACHINE"-unknown-redox + exit ;; + mips:OSF1:*.*) + echo mips-dec-osf1 + exit ;; + alpha:OSF1:*:*) + case $UNAME_RELEASE in + *4.0) + UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'` + ;; + *5.*) + UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'` + ;; + esac + # According to Compaq, /usr/sbin/psrinfo has been available on + # OSF/1 and Tru64 systems produced since 1995. I hope that + # covers most systems running today. This code pipes the CPU + # types through head -n 1, so we only detect the type of CPU 0. + ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^ The alpha \(.*\) processor.*$/\1/p' | head -n 1` + case "$ALPHA_CPU_TYPE" in + "EV4 (21064)") + UNAME_MACHINE=alpha ;; + "EV4.5 (21064)") + UNAME_MACHINE=alpha ;; + "LCA4 (21066/21068)") + UNAME_MACHINE=alpha ;; + "EV5 (21164)") + UNAME_MACHINE=alphaev5 ;; + "EV5.6 (21164A)") + UNAME_MACHINE=alphaev56 ;; + "EV5.6 (21164PC)") + UNAME_MACHINE=alphapca56 ;; + "EV5.7 (21164PC)") + UNAME_MACHINE=alphapca57 ;; + "EV6 (21264)") + UNAME_MACHINE=alphaev6 ;; + "EV6.7 (21264A)") + UNAME_MACHINE=alphaev67 ;; + "EV6.8CB (21264C)") + UNAME_MACHINE=alphaev68 ;; + "EV6.8AL (21264B)") + UNAME_MACHINE=alphaev68 ;; + "EV6.8CX (21264D)") + UNAME_MACHINE=alphaev68 ;; + "EV6.9A (21264/EV69A)") + UNAME_MACHINE=alphaev69 ;; + "EV7 (21364)") + UNAME_MACHINE=alphaev7 ;; + "EV7.9 (21364A)") + UNAME_MACHINE=alphaev79 ;; + esac + # A Pn.n version is a patched version. + # A Vn.n version is a released version. + # A Tn.n version is a released field test version. + # A Xn.n version is an unreleased experimental baselevel. + # 1.2 uses "1.2" for uname -r. + echo "$UNAME_MACHINE"-dec-osf"`echo "$UNAME_RELEASE" | sed -e 's/^[PVTX]//' | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz`" + # Reset EXIT trap before exiting to avoid spurious non-zero exit code. + exitcode=$? + trap '' 0 + exit $exitcode ;; + Amiga*:UNIX_System_V:4.0:*) + echo m68k-unknown-sysv4 + exit ;; + *:[Aa]miga[Oo][Ss]:*:*) + echo "$UNAME_MACHINE"-unknown-amigaos + exit ;; + *:[Mm]orph[Oo][Ss]:*:*) + echo "$UNAME_MACHINE"-unknown-morphos + exit ;; + *:OS/390:*:*) + echo i370-ibm-openedition + exit ;; + *:z/VM:*:*) + echo s390-ibm-zvmoe + exit ;; + *:OS400:*:*) + echo powerpc-ibm-os400 + exit ;; + arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*) + echo arm-acorn-riscix"$UNAME_RELEASE" + exit ;; + arm*:riscos:*:*|arm*:RISCOS:*:*) + echo arm-unknown-riscos + exit ;; + SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*) + echo hppa1.1-hitachi-hiuxmpp + exit ;; + Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*) + # akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE. + if test "`(/bin/universe) 2>/dev/null`" = att ; then + echo pyramid-pyramid-sysv3 + else + echo pyramid-pyramid-bsd + fi + exit ;; + NILE*:*:*:dcosx) + echo pyramid-pyramid-svr4 + exit ;; + DRS?6000:unix:4.0:6*) + echo sparc-icl-nx6 + exit ;; + DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*) + case `/usr/bin/uname -p` in + sparc) echo sparc-icl-nx7; exit ;; + esac ;; + s390x:SunOS:*:*) + echo "$UNAME_MACHINE"-ibm-solaris2"`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`" + exit ;; + sun4H:SunOS:5.*:*) + echo sparc-hal-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`" + exit ;; + sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*) + echo sparc-sun-solaris2"`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`" + exit ;; + i86pc:AuroraUX:5.*:* | i86xen:AuroraUX:5.*:*) + echo i386-pc-auroraux"$UNAME_RELEASE" + exit ;; + i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*) + eval "$set_cc_for_build" + SUN_ARCH=i386 + # If there is a compiler, see if it is configured for 64-bit objects. + # Note that the Sun cc does not turn __LP64__ into 1 like gcc does. + # This test works for both compilers. + if [ "$CC_FOR_BUILD" != no_compiler_found ]; then + if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \ + (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \ + grep IS_64BIT_ARCH >/dev/null + then + SUN_ARCH=x86_64 + fi + fi + echo "$SUN_ARCH"-pc-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`" + exit ;; + sun4*:SunOS:6*:*) + # According to config.sub, this is the proper way to canonicalize + # SunOS6. Hard to guess exactly what SunOS6 will be like, but + # it's likely to be more like Solaris than SunOS4. + echo sparc-sun-solaris3"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`" + exit ;; + sun4*:SunOS:*:*) + case "`/usr/bin/arch -k`" in + Series*|S4*) + UNAME_RELEASE=`uname -v` + ;; + esac + # Japanese Language versions have a version number like `4.1.3-JL'. + echo sparc-sun-sunos"`echo "$UNAME_RELEASE"|sed -e 's/-/_/'`" + exit ;; + sun3*:SunOS:*:*) + echo m68k-sun-sunos"$UNAME_RELEASE" + exit ;; + sun*:*:4.2BSD:*) + UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null` + test "x$UNAME_RELEASE" = x && UNAME_RELEASE=3 + case "`/bin/arch`" in + sun3) + echo m68k-sun-sunos"$UNAME_RELEASE" + ;; + sun4) + echo sparc-sun-sunos"$UNAME_RELEASE" + ;; + esac + exit ;; + aushp:SunOS:*:*) + echo sparc-auspex-sunos"$UNAME_RELEASE" + exit ;; + # The situation for MiNT is a little confusing. The machine name + # can be virtually everything (everything which is not + # "atarist" or "atariste" at least should have a processor + # > m68000). The system name ranges from "MiNT" over "FreeMiNT" + # to the lowercase version "mint" (or "freemint"). Finally + # the system name "TOS" denotes a system which is actually not + # MiNT. But MiNT is downward compatible to TOS, so this should + # be no problem. + atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*) + echo m68k-atari-mint"$UNAME_RELEASE" + exit ;; + atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*) + echo m68k-atari-mint"$UNAME_RELEASE" + exit ;; + *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*) + echo m68k-atari-mint"$UNAME_RELEASE" + exit ;; + milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*) + echo m68k-milan-mint"$UNAME_RELEASE" + exit ;; + hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*) + echo m68k-hades-mint"$UNAME_RELEASE" + exit ;; + *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*) + echo m68k-unknown-mint"$UNAME_RELEASE" + exit ;; + m68k:machten:*:*) + echo m68k-apple-machten"$UNAME_RELEASE" + exit ;; + powerpc:machten:*:*) + echo powerpc-apple-machten"$UNAME_RELEASE" + exit ;; + RISC*:Mach:*:*) + echo mips-dec-mach_bsd4.3 + exit ;; + RISC*:ULTRIX:*:*) + echo mips-dec-ultrix"$UNAME_RELEASE" + exit ;; + VAX*:ULTRIX*:*:*) + echo vax-dec-ultrix"$UNAME_RELEASE" + exit ;; + 2020:CLIX:*:* | 2430:CLIX:*:*) + echo clipper-intergraph-clix"$UNAME_RELEASE" + exit ;; + mips:*:*:UMIPS | mips:*:*:RISCos) + eval "$set_cc_for_build" + sed 's/^ //' << EOF > "$dummy.c" +#ifdef __cplusplus +#include /* for printf() prototype */ + int main (int argc, char *argv[]) { +#else + int main (argc, argv) int argc; char *argv[]; { +#endif + #if defined (host_mips) && defined (MIPSEB) + #if defined (SYSTYPE_SYSV) + printf ("mips-mips-riscos%ssysv\\n", argv[1]); exit (0); + #endif + #if defined (SYSTYPE_SVR4) + printf ("mips-mips-riscos%ssvr4\\n", argv[1]); exit (0); + #endif + #if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD) + printf ("mips-mips-riscos%sbsd\\n", argv[1]); exit (0); + #endif + #endif + exit (-1); + } +EOF + $CC_FOR_BUILD -o "$dummy" "$dummy.c" && + dummyarg=`echo "$UNAME_RELEASE" | sed -n 's/\([0-9]*\).*/\1/p'` && + SYSTEM_NAME=`"$dummy" "$dummyarg"` && + { echo "$SYSTEM_NAME"; exit; } + echo mips-mips-riscos"$UNAME_RELEASE" + exit ;; + Motorola:PowerMAX_OS:*:*) + echo powerpc-motorola-powermax + exit ;; + Motorola:*:4.3:PL8-*) + echo powerpc-harris-powermax + exit ;; + Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*) + echo powerpc-harris-powermax + exit ;; + Night_Hawk:Power_UNIX:*:*) + echo powerpc-harris-powerunix + exit ;; + m88k:CX/UX:7*:*) + echo m88k-harris-cxux7 + exit ;; + m88k:*:4*:R4*) + echo m88k-motorola-sysv4 + exit ;; + m88k:*:3*:R3*) + echo m88k-motorola-sysv3 + exit ;; + AViiON:dgux:*:*) + # DG/UX returns AViiON for all architectures + UNAME_PROCESSOR=`/usr/bin/uname -p` + if [ "$UNAME_PROCESSOR" = mc88100 ] || [ "$UNAME_PROCESSOR" = mc88110 ] + then + if [ "$TARGET_BINARY_INTERFACE"x = m88kdguxelfx ] || \ + [ "$TARGET_BINARY_INTERFACE"x = x ] + then + echo m88k-dg-dgux"$UNAME_RELEASE" + else + echo m88k-dg-dguxbcs"$UNAME_RELEASE" + fi + else + echo i586-dg-dgux"$UNAME_RELEASE" + fi + exit ;; + M88*:DolphinOS:*:*) # DolphinOS (SVR3) + echo m88k-dolphin-sysv3 + exit ;; + M88*:*:R3*:*) + # Delta 88k system running SVR3 + echo m88k-motorola-sysv3 + exit ;; + XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3) + echo m88k-tektronix-sysv3 + exit ;; + Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD) + echo m68k-tektronix-bsd + exit ;; + *:IRIX*:*:*) + echo mips-sgi-irix"`echo "$UNAME_RELEASE"|sed -e 's/-/_/g'`" + exit ;; + ????????:AIX?:[12].1:2) # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX. + echo romp-ibm-aix # uname -m gives an 8 hex-code CPU id + exit ;; # Note that: echo "'`uname -s`'" gives 'AIX ' + i*86:AIX:*:*) + echo i386-ibm-aix + exit ;; + ia64:AIX:*:*) + if [ -x /usr/bin/oslevel ] ; then + IBM_REV=`/usr/bin/oslevel` + else + IBM_REV="$UNAME_VERSION.$UNAME_RELEASE" + fi + echo "$UNAME_MACHINE"-ibm-aix"$IBM_REV" + exit ;; + *:AIX:2:3) + if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then + eval "$set_cc_for_build" + sed 's/^ //' << EOF > "$dummy.c" + #include + + main() + { + if (!__power_pc()) + exit(1); + puts("powerpc-ibm-aix3.2.5"); + exit(0); + } +EOF + if $CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=`"$dummy"` + then + echo "$SYSTEM_NAME" + else + echo rs6000-ibm-aix3.2.5 + fi + elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then + echo rs6000-ibm-aix3.2.4 + else + echo rs6000-ibm-aix3.2 + fi + exit ;; + *:AIX:*:[4567]) + IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'` + if /usr/sbin/lsattr -El "$IBM_CPU_ID" | grep ' POWER' >/dev/null 2>&1; then + IBM_ARCH=rs6000 + else + IBM_ARCH=powerpc + fi + if [ -x /usr/bin/lslpp ] ; then + IBM_REV=`/usr/bin/lslpp -Lqc bos.rte.libc | + awk -F: '{ print $3 }' | sed s/[0-9]*$/0/` + else + IBM_REV="$UNAME_VERSION.$UNAME_RELEASE" + fi + echo "$IBM_ARCH"-ibm-aix"$IBM_REV" + exit ;; + *:AIX:*:*) + echo rs6000-ibm-aix + exit ;; + ibmrt:4.4BSD:*|romp-ibm:4.4BSD:*) + echo romp-ibm-bsd4.4 + exit ;; + ibmrt:*BSD:*|romp-ibm:BSD:*) # covers RT/PC BSD and + echo romp-ibm-bsd"$UNAME_RELEASE" # 4.3 with uname added to + exit ;; # report: romp-ibm BSD 4.3 + *:BOSX:*:*) + echo rs6000-bull-bosx + exit ;; + DPX/2?00:B.O.S.:*:*) + echo m68k-bull-sysv3 + exit ;; + 9000/[34]??:4.3bsd:1.*:*) + echo m68k-hp-bsd + exit ;; + hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*) + echo m68k-hp-bsd4.4 + exit ;; + 9000/[34678]??:HP-UX:*:*) + HPUX_REV=`echo "$UNAME_RELEASE"|sed -e 's/[^.]*.[0B]*//'` + case "$UNAME_MACHINE" in + 9000/31?) HP_ARCH=m68000 ;; + 9000/[34]??) HP_ARCH=m68k ;; + 9000/[678][0-9][0-9]) + if [ -x /usr/bin/getconf ]; then + sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null` + sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null` + case "$sc_cpu_version" in + 523) HP_ARCH=hppa1.0 ;; # CPU_PA_RISC1_0 + 528) HP_ARCH=hppa1.1 ;; # CPU_PA_RISC1_1 + 532) # CPU_PA_RISC2_0 + case "$sc_kernel_bits" in + 32) HP_ARCH=hppa2.0n ;; + 64) HP_ARCH=hppa2.0w ;; + '') HP_ARCH=hppa2.0 ;; # HP-UX 10.20 + esac ;; + esac + fi + if [ "$HP_ARCH" = "" ]; then + eval "$set_cc_for_build" + sed 's/^ //' << EOF > "$dummy.c" + + #define _HPUX_SOURCE + #include + #include + + int main () + { + #if defined(_SC_KERNEL_BITS) + long bits = sysconf(_SC_KERNEL_BITS); + #endif + long cpu = sysconf (_SC_CPU_VERSION); + + switch (cpu) + { + case CPU_PA_RISC1_0: puts ("hppa1.0"); break; + case CPU_PA_RISC1_1: puts ("hppa1.1"); break; + case CPU_PA_RISC2_0: + #if defined(_SC_KERNEL_BITS) + switch (bits) + { + case 64: puts ("hppa2.0w"); break; + case 32: puts ("hppa2.0n"); break; + default: puts ("hppa2.0"); break; + } break; + #else /* !defined(_SC_KERNEL_BITS) */ + puts ("hppa2.0"); break; + #endif + default: puts ("hppa1.0"); break; + } + exit (0); + } +EOF + (CCOPTS="" $CC_FOR_BUILD -o "$dummy" "$dummy.c" 2>/dev/null) && HP_ARCH=`"$dummy"` + test -z "$HP_ARCH" && HP_ARCH=hppa + fi ;; + esac + if [ "$HP_ARCH" = hppa2.0w ] + then + eval "$set_cc_for_build" + + # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating + # 32-bit code. hppa64-hp-hpux* has the same kernel and a compiler + # generating 64-bit code. GNU and HP use different nomenclature: + # + # $ CC_FOR_BUILD=cc ./config.guess + # => hppa2.0w-hp-hpux11.23 + # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess + # => hppa64-hp-hpux11.23 + + if echo __LP64__ | (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | + grep -q __LP64__ + then + HP_ARCH=hppa2.0w + else + HP_ARCH=hppa64 + fi + fi + echo "$HP_ARCH"-hp-hpux"$HPUX_REV" + exit ;; + ia64:HP-UX:*:*) + HPUX_REV=`echo "$UNAME_RELEASE"|sed -e 's/[^.]*.[0B]*//'` + echo ia64-hp-hpux"$HPUX_REV" + exit ;; + 3050*:HI-UX:*:*) + eval "$set_cc_for_build" + sed 's/^ //' << EOF > "$dummy.c" + #include + int + main () + { + long cpu = sysconf (_SC_CPU_VERSION); + /* The order matters, because CPU_IS_HP_MC68K erroneously returns + true for CPU_PA_RISC1_0. CPU_IS_PA_RISC returns correct + results, however. */ + if (CPU_IS_PA_RISC (cpu)) + { + switch (cpu) + { + case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break; + case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break; + case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break; + default: puts ("hppa-hitachi-hiuxwe2"); break; + } + } + else if (CPU_IS_HP_MC68K (cpu)) + puts ("m68k-hitachi-hiuxwe2"); + else puts ("unknown-hitachi-hiuxwe2"); + exit (0); + } +EOF + $CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=`"$dummy"` && + { echo "$SYSTEM_NAME"; exit; } + echo unknown-hitachi-hiuxwe2 + exit ;; + 9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:*) + echo hppa1.1-hp-bsd + exit ;; + 9000/8??:4.3bsd:*:*) + echo hppa1.0-hp-bsd + exit ;; + *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*) + echo hppa1.0-hp-mpeix + exit ;; + hp7??:OSF1:*:* | hp8?[79]:OSF1:*:*) + echo hppa1.1-hp-osf + exit ;; + hp8??:OSF1:*:*) + echo hppa1.0-hp-osf + exit ;; + i*86:OSF1:*:*) + if [ -x /usr/sbin/sysversion ] ; then + echo "$UNAME_MACHINE"-unknown-osf1mk + else + echo "$UNAME_MACHINE"-unknown-osf1 + fi + exit ;; + parisc*:Lites*:*:*) + echo hppa1.1-hp-lites + exit ;; + C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*) + echo c1-convex-bsd + exit ;; + C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*) + if getsysinfo -f scalar_acc + then echo c32-convex-bsd + else echo c2-convex-bsd + fi + exit ;; + C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*) + echo c34-convex-bsd + exit ;; + C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*) + echo c38-convex-bsd + exit ;; + C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*) + echo c4-convex-bsd + exit ;; + CRAY*Y-MP:*:*:*) + echo ymp-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/' + exit ;; + CRAY*[A-Z]90:*:*:*) + echo "$UNAME_MACHINE"-cray-unicos"$UNAME_RELEASE" \ + | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \ + -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \ + -e 's/\.[^.]*$/.X/' + exit ;; + CRAY*TS:*:*:*) + echo t90-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/' + exit ;; + CRAY*T3E:*:*:*) + echo alphaev5-cray-unicosmk"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/' + exit ;; + CRAY*SV1:*:*:*) + echo sv1-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/' + exit ;; + *:UNICOS/mp:*:*) + echo craynv-cray-unicosmp"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/' + exit ;; + F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*) + FUJITSU_PROC=`uname -m | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz` + FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'` + FUJITSU_REL=`echo "$UNAME_RELEASE" | sed -e 's/ /_/'` + echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" + exit ;; + 5000:UNIX_System_V:4.*:*) + FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'` + FUJITSU_REL=`echo "$UNAME_RELEASE" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/ /_/'` + echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" + exit ;; + i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*) + echo "$UNAME_MACHINE"-pc-bsdi"$UNAME_RELEASE" + exit ;; + sparc*:BSD/OS:*:*) + echo sparc-unknown-bsdi"$UNAME_RELEASE" + exit ;; + *:BSD/OS:*:*) + echo "$UNAME_MACHINE"-unknown-bsdi"$UNAME_RELEASE" + exit ;; + *:FreeBSD:*:*) + UNAME_PROCESSOR=`/usr/bin/uname -p` + case "$UNAME_PROCESSOR" in + amd64) + UNAME_PROCESSOR=x86_64 ;; + i386) + UNAME_PROCESSOR=i586 ;; + esac + echo "$UNAME_PROCESSOR"-unknown-freebsd"`echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`" + exit ;; + i*:CYGWIN*:*) + echo "$UNAME_MACHINE"-pc-cygwin + exit ;; + *:MINGW64*:*) + echo "$UNAME_MACHINE"-pc-mingw64 + exit ;; + *:MINGW*:*) + echo "$UNAME_MACHINE"-pc-mingw32 + exit ;; + *:MSYS*:*) + echo "$UNAME_MACHINE"-pc-msys + exit ;; + i*:PW*:*) + echo "$UNAME_MACHINE"-pc-pw32 + exit ;; + *:Interix*:*) + case "$UNAME_MACHINE" in + x86) + echo i586-pc-interix"$UNAME_RELEASE" + exit ;; + authenticamd | genuineintel | EM64T) + echo x86_64-unknown-interix"$UNAME_RELEASE" + exit ;; + IA64) + echo ia64-unknown-interix"$UNAME_RELEASE" + exit ;; + esac ;; + i*:UWIN*:*) + echo "$UNAME_MACHINE"-pc-uwin + exit ;; + amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*) + echo x86_64-unknown-cygwin + exit ;; + prep*:SunOS:5.*:*) + echo powerpcle-unknown-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`" + exit ;; + *:GNU:*:*) + # the GNU system + echo "`echo "$UNAME_MACHINE"|sed -e 's,[-/].*$,,'`-unknown-$LIBC`echo "$UNAME_RELEASE"|sed -e 's,/.*$,,'`" + exit ;; + *:GNU/*:*:*) + # other systems with GNU libc and userland + echo "$UNAME_MACHINE-unknown-`echo "$UNAME_SYSTEM" | sed 's,^[^/]*/,,' | tr "[:upper:]" "[:lower:]"``echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`-$LIBC" + exit ;; + i*86:Minix:*:*) + echo "$UNAME_MACHINE"-pc-minix + exit ;; + aarch64:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + aarch64_be:Linux:*:*) + UNAME_MACHINE=aarch64_be + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + alpha:Linux:*:*) + case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in + EV5) UNAME_MACHINE=alphaev5 ;; + EV56) UNAME_MACHINE=alphaev56 ;; + PCA56) UNAME_MACHINE=alphapca56 ;; + PCA57) UNAME_MACHINE=alphapca56 ;; + EV6) UNAME_MACHINE=alphaev6 ;; + EV67) UNAME_MACHINE=alphaev67 ;; + EV68*) UNAME_MACHINE=alphaev68 ;; + esac + objdump --private-headers /bin/sh | grep -q ld.so.1 + if test "$?" = 0 ; then LIBC=gnulibc1 ; fi + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + arc:Linux:*:* | arceb:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + arm*:Linux:*:*) + eval "$set_cc_for_build" + if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \ + | grep -q __ARM_EABI__ + then + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + else + if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \ + | grep -q __ARM_PCS_VFP + then + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"eabi + else + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"eabihf + fi + fi + exit ;; + avr32*:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + cris:Linux:*:*) + echo "$UNAME_MACHINE"-axis-linux-"$LIBC" + exit ;; + crisv32:Linux:*:*) + echo "$UNAME_MACHINE"-axis-linux-"$LIBC" + exit ;; + e2k:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + frv:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + hexagon:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + i*86:Linux:*:*) + echo "$UNAME_MACHINE"-pc-linux-"$LIBC" + exit ;; + ia64:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + k1om:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + m32r*:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + m68*:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + mips:Linux:*:* | mips64:Linux:*:*) + eval "$set_cc_for_build" + sed 's/^ //' << EOF > "$dummy.c" + #undef CPU + #undef ${UNAME_MACHINE} + #undef ${UNAME_MACHINE}el + #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL) + CPU=${UNAME_MACHINE}el + #else + #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB) + CPU=${UNAME_MACHINE} + #else + CPU= + #endif + #endif +EOF + eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^CPU'`" + test "x$CPU" != x && { echo "$CPU-unknown-linux-$LIBC"; exit; } + ;; + mips64el:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + openrisc*:Linux:*:*) + echo or1k-unknown-linux-"$LIBC" + exit ;; + or32:Linux:*:* | or1k*:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + padre:Linux:*:*) + echo sparc-unknown-linux-"$LIBC" + exit ;; + parisc64:Linux:*:* | hppa64:Linux:*:*) + echo hppa64-unknown-linux-"$LIBC" + exit ;; + parisc:Linux:*:* | hppa:Linux:*:*) + # Look for CPU level + case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in + PA7*) echo hppa1.1-unknown-linux-"$LIBC" ;; + PA8*) echo hppa2.0-unknown-linux-"$LIBC" ;; + *) echo hppa-unknown-linux-"$LIBC" ;; + esac + exit ;; + ppc64:Linux:*:*) + echo powerpc64-unknown-linux-"$LIBC" + exit ;; + ppc:Linux:*:*) + echo powerpc-unknown-linux-"$LIBC" + exit ;; + ppc64le:Linux:*:*) + echo powerpc64le-unknown-linux-"$LIBC" + exit ;; + ppcle:Linux:*:*) + echo powerpcle-unknown-linux-"$LIBC" + exit ;; + riscv32:Linux:*:* | riscv64:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + s390:Linux:*:* | s390x:Linux:*:*) + echo "$UNAME_MACHINE"-ibm-linux-"$LIBC" + exit ;; + sh64*:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + sh*:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + sparc:Linux:*:* | sparc64:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + tile*:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + vax:Linux:*:*) + echo "$UNAME_MACHINE"-dec-linux-"$LIBC" + exit ;; + x86_64:Linux:*:*) + echo "$UNAME_MACHINE"-pc-linux-"$LIBC" + exit ;; + xtensa*:Linux:*:*) + echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" + exit ;; + i*86:DYNIX/ptx:4*:*) + # ptx 4.0 does uname -s correctly, with DYNIX/ptx in there. + # earlier versions are messed up and put the nodename in both + # sysname and nodename. + echo i386-sequent-sysv4 + exit ;; + i*86:UNIX_SV:4.2MP:2.*) + # Unixware is an offshoot of SVR4, but it has its own version + # number series starting with 2... + # I am not positive that other SVR4 systems won't match this, + # I just have to hope. -- rms. + # Use sysv4.2uw... so that sysv4* matches it. + echo "$UNAME_MACHINE"-pc-sysv4.2uw"$UNAME_VERSION" + exit ;; + i*86:OS/2:*:*) + # If we were able to find `uname', then EMX Unix compatibility + # is probably installed. + echo "$UNAME_MACHINE"-pc-os2-emx + exit ;; + i*86:XTS-300:*:STOP) + echo "$UNAME_MACHINE"-unknown-stop + exit ;; + i*86:atheos:*:*) + echo "$UNAME_MACHINE"-unknown-atheos + exit ;; + i*86:syllable:*:*) + echo "$UNAME_MACHINE"-pc-syllable + exit ;; + i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*) + echo i386-unknown-lynxos"$UNAME_RELEASE" + exit ;; + i*86:*DOS:*:*) + echo "$UNAME_MACHINE"-pc-msdosdjgpp + exit ;; + i*86:*:4.*:*) + UNAME_REL=`echo "$UNAME_RELEASE" | sed 's/\/MP$//'` + if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then + echo "$UNAME_MACHINE"-univel-sysv"$UNAME_REL" + else + echo "$UNAME_MACHINE"-pc-sysv"$UNAME_REL" + fi + exit ;; + i*86:*:5:[678]*) + # UnixWare 7.x, OpenUNIX and OpenServer 6. + case `/bin/uname -X | grep "^Machine"` in + *486*) UNAME_MACHINE=i486 ;; + *Pentium) UNAME_MACHINE=i586 ;; + *Pent*|*Celeron) UNAME_MACHINE=i686 ;; + esac + echo "$UNAME_MACHINE-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}{$UNAME_VERSION}" + exit ;; + i*86:*:3.2:*) + if test -f /usr/options/cb.name; then + UNAME_REL=`sed -n 's/.*Version //p' /dev/null >/dev/null ; then + UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')` + (/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486 + (/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \ + && UNAME_MACHINE=i586 + (/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \ + && UNAME_MACHINE=i686 + (/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \ + && UNAME_MACHINE=i686 + echo "$UNAME_MACHINE"-pc-sco"$UNAME_REL" + else + echo "$UNAME_MACHINE"-pc-sysv32 + fi + exit ;; + pc:*:*:*) + # Left here for compatibility: + # uname -m prints for DJGPP always 'pc', but it prints nothing about + # the processor, so we play safe by assuming i586. + # Note: whatever this is, it MUST be the same as what config.sub + # prints for the "djgpp" host, or else GDB configure will decide that + # this is a cross-build. + echo i586-pc-msdosdjgpp + exit ;; + Intel:Mach:3*:*) + echo i386-pc-mach3 + exit ;; + paragon:*:*:*) + echo i860-intel-osf1 + exit ;; + i860:*:4.*:*) # i860-SVR4 + if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then + echo i860-stardent-sysv"$UNAME_RELEASE" # Stardent Vistra i860-SVR4 + else # Add other i860-SVR4 vendors below as they are discovered. + echo i860-unknown-sysv"$UNAME_RELEASE" # Unknown i860-SVR4 + fi + exit ;; + mini*:CTIX:SYS*5:*) + # "miniframe" + echo m68010-convergent-sysv + exit ;; + mc68k:UNIX:SYSTEM5:3.51m) + echo m68k-convergent-sysv + exit ;; + M680?0:D-NIX:5.3:*) + echo m68k-diab-dnix + exit ;; + M68*:*:R3V[5678]*:*) + test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;; + 3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0) + OS_REL='' + test -r /etc/.relid \ + && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` + /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ + && { echo i486-ncr-sysv4.3"$OS_REL"; exit; } + /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ + && { echo i586-ncr-sysv4.3"$OS_REL"; exit; } ;; + 3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*) + /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ + && { echo i486-ncr-sysv4; exit; } ;; + NCR*:*:4.2:* | MPRAS*:*:4.2:*) + OS_REL='.3' + test -r /etc/.relid \ + && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` + /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ + && { echo i486-ncr-sysv4.3"$OS_REL"; exit; } + /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ + && { echo i586-ncr-sysv4.3"$OS_REL"; exit; } + /bin/uname -p 2>/dev/null | /bin/grep pteron >/dev/null \ + && { echo i586-ncr-sysv4.3"$OS_REL"; exit; } ;; + m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*) + echo m68k-unknown-lynxos"$UNAME_RELEASE" + exit ;; + mc68030:UNIX_System_V:4.*:*) + echo m68k-atari-sysv4 + exit ;; + TSUNAMI:LynxOS:2.*:*) + echo sparc-unknown-lynxos"$UNAME_RELEASE" + exit ;; + rs6000:LynxOS:2.*:*) + echo rs6000-unknown-lynxos"$UNAME_RELEASE" + exit ;; + PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.[02]*:*) + echo powerpc-unknown-lynxos"$UNAME_RELEASE" + exit ;; + SM[BE]S:UNIX_SV:*:*) + echo mips-dde-sysv"$UNAME_RELEASE" + exit ;; + RM*:ReliantUNIX-*:*:*) + echo mips-sni-sysv4 + exit ;; + RM*:SINIX-*:*:*) + echo mips-sni-sysv4 + exit ;; + *:SINIX-*:*:*) + if uname -p 2>/dev/null >/dev/null ; then + UNAME_MACHINE=`(uname -p) 2>/dev/null` + echo "$UNAME_MACHINE"-sni-sysv4 + else + echo ns32k-sni-sysv + fi + exit ;; + PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort + # says + echo i586-unisys-sysv4 + exit ;; + *:UNIX_System_V:4*:FTX*) + # From Gerald Hewes . + # How about differentiating between stratus architectures? -djm + echo hppa1.1-stratus-sysv4 + exit ;; + *:*:*:FTX*) + # From seanf@swdc.stratus.com. + echo i860-stratus-sysv4 + exit ;; + i*86:VOS:*:*) + # From Paul.Green@stratus.com. + echo "$UNAME_MACHINE"-stratus-vos + exit ;; + *:VOS:*:*) + # From Paul.Green@stratus.com. + echo hppa1.1-stratus-vos + exit ;; + mc68*:A/UX:*:*) + echo m68k-apple-aux"$UNAME_RELEASE" + exit ;; + news*:NEWS-OS:6*:*) + echo mips-sony-newsos6 + exit ;; + R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*) + if [ -d /usr/nec ]; then + echo mips-nec-sysv"$UNAME_RELEASE" + else + echo mips-unknown-sysv"$UNAME_RELEASE" + fi + exit ;; + BeBox:BeOS:*:*) # BeOS running on hardware made by Be, PPC only. + echo powerpc-be-beos + exit ;; + BeMac:BeOS:*:*) # BeOS running on Mac or Mac clone, PPC only. + echo powerpc-apple-beos + exit ;; + BePC:BeOS:*:*) # BeOS running on Intel PC compatible. + echo i586-pc-beos + exit ;; + BePC:Haiku:*:*) # Haiku running on Intel PC compatible. + echo i586-pc-haiku + exit ;; + x86_64:Haiku:*:*) + echo x86_64-unknown-haiku + exit ;; + SX-4:SUPER-UX:*:*) + echo sx4-nec-superux"$UNAME_RELEASE" + exit ;; + SX-5:SUPER-UX:*:*) + echo sx5-nec-superux"$UNAME_RELEASE" + exit ;; + SX-6:SUPER-UX:*:*) + echo sx6-nec-superux"$UNAME_RELEASE" + exit ;; + SX-7:SUPER-UX:*:*) + echo sx7-nec-superux"$UNAME_RELEASE" + exit ;; + SX-8:SUPER-UX:*:*) + echo sx8-nec-superux"$UNAME_RELEASE" + exit ;; + SX-8R:SUPER-UX:*:*) + echo sx8r-nec-superux"$UNAME_RELEASE" + exit ;; + SX-ACE:SUPER-UX:*:*) + echo sxace-nec-superux"$UNAME_RELEASE" + exit ;; + Power*:Rhapsody:*:*) + echo powerpc-apple-rhapsody"$UNAME_RELEASE" + exit ;; + *:Rhapsody:*:*) + echo "$UNAME_MACHINE"-apple-rhapsody"$UNAME_RELEASE" + exit ;; + *:Darwin:*:*) + UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown + eval "$set_cc_for_build" + if test "$UNAME_PROCESSOR" = unknown ; then + UNAME_PROCESSOR=powerpc + fi + if test "`echo "$UNAME_RELEASE" | sed -e 's/\..*//'`" -le 10 ; then + if [ "$CC_FOR_BUILD" != no_compiler_found ]; then + if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \ + (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \ + grep IS_64BIT_ARCH >/dev/null + then + case $UNAME_PROCESSOR in + i386) UNAME_PROCESSOR=x86_64 ;; + powerpc) UNAME_PROCESSOR=powerpc64 ;; + esac + fi + # On 10.4-10.6 one might compile for PowerPC via gcc -arch ppc + if (echo '#ifdef __POWERPC__'; echo IS_PPC; echo '#endif') | \ + (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \ + grep IS_PPC >/dev/null + then + UNAME_PROCESSOR=powerpc + fi + fi + elif test "$UNAME_PROCESSOR" = i386 ; then + # Avoid executing cc on OS X 10.9, as it ships with a stub + # that puts up a graphical alert prompting to install + # developer tools. Any system running Mac OS X 10.7 or + # later (Darwin 11 and later) is required to have a 64-bit + # processor. This is not true of the ARM version of Darwin + # that Apple uses in portable devices. + UNAME_PROCESSOR=x86_64 + fi + echo "$UNAME_PROCESSOR"-apple-darwin"$UNAME_RELEASE" + exit ;; + *:procnto*:*:* | *:QNX:[0123456789]*:*) + UNAME_PROCESSOR=`uname -p` + if test "$UNAME_PROCESSOR" = x86; then + UNAME_PROCESSOR=i386 + UNAME_MACHINE=pc + fi + echo "$UNAME_PROCESSOR"-"$UNAME_MACHINE"-nto-qnx"$UNAME_RELEASE" + exit ;; + *:QNX:*:4*) + echo i386-pc-qnx + exit ;; + NEO-*:NONSTOP_KERNEL:*:*) + echo neo-tandem-nsk"$UNAME_RELEASE" + exit ;; + NSE-*:NONSTOP_KERNEL:*:*) + echo nse-tandem-nsk"$UNAME_RELEASE" + exit ;; + NSR-*:NONSTOP_KERNEL:*:*) + echo nsr-tandem-nsk"$UNAME_RELEASE" + exit ;; + NSV-*:NONSTOP_KERNEL:*:*) + echo nsv-tandem-nsk"$UNAME_RELEASE" + exit ;; + NSX-*:NONSTOP_KERNEL:*:*) + echo nsx-tandem-nsk"$UNAME_RELEASE" + exit ;; + *:NonStop-UX:*:*) + echo mips-compaq-nonstopux + exit ;; + BS2000:POSIX*:*:*) + echo bs2000-siemens-sysv + exit ;; + DS/*:UNIX_System_V:*:*) + echo "$UNAME_MACHINE"-"$UNAME_SYSTEM"-"$UNAME_RELEASE" + exit ;; + *:Plan9:*:*) + # "uname -m" is not consistent, so use $cputype instead. 386 + # is converted to i386 for consistency with other x86 + # operating systems. + if test "$cputype" = 386; then + UNAME_MACHINE=i386 + else + UNAME_MACHINE="$cputype" + fi + echo "$UNAME_MACHINE"-unknown-plan9 + exit ;; + *:TOPS-10:*:*) + echo pdp10-unknown-tops10 + exit ;; + *:TENEX:*:*) + echo pdp10-unknown-tenex + exit ;; + KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*) + echo pdp10-dec-tops20 + exit ;; + XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*) + echo pdp10-xkl-tops20 + exit ;; + *:TOPS-20:*:*) + echo pdp10-unknown-tops20 + exit ;; + *:ITS:*:*) + echo pdp10-unknown-its + exit ;; + SEI:*:*:SEIUX) + echo mips-sei-seiux"$UNAME_RELEASE" + exit ;; + *:DragonFly:*:*) + echo "$UNAME_MACHINE"-unknown-dragonfly"`echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`" + exit ;; + *:*VMS:*:*) + UNAME_MACHINE=`(uname -p) 2>/dev/null` + case "$UNAME_MACHINE" in + A*) echo alpha-dec-vms ; exit ;; + I*) echo ia64-dec-vms ; exit ;; + V*) echo vax-dec-vms ; exit ;; + esac ;; + *:XENIX:*:SysV) + echo i386-pc-xenix + exit ;; + i*86:skyos:*:*) + echo "$UNAME_MACHINE"-pc-skyos"`echo "$UNAME_RELEASE" | sed -e 's/ .*$//'`" + exit ;; + i*86:rdos:*:*) + echo "$UNAME_MACHINE"-pc-rdos + exit ;; + i*86:AROS:*:*) + echo "$UNAME_MACHINE"-pc-aros + exit ;; + x86_64:VMkernel:*:*) + echo "$UNAME_MACHINE"-unknown-esx + exit ;; + amd64:Isilon\ OneFS:*:*) + echo x86_64-unknown-onefs + exit ;; +esac + +echo "$0: unable to guess system type" >&2 + +case "$UNAME_MACHINE:$UNAME_SYSTEM" in + mips:Linux | mips64:Linux) + # If we got here on MIPS GNU/Linux, output extra information. + cat >&2 <&2 </dev/null || echo unknown` +uname -r = `(uname -r) 2>/dev/null || echo unknown` +uname -s = `(uname -s) 2>/dev/null || echo unknown` +uname -v = `(uname -v) 2>/dev/null || echo unknown` + +/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null` +/bin/uname -X = `(/bin/uname -X) 2>/dev/null` + +hostinfo = `(hostinfo) 2>/dev/null` +/bin/universe = `(/bin/universe) 2>/dev/null` +/usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null` +/bin/arch = `(/bin/arch) 2>/dev/null` +/usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null` +/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null` + +UNAME_MACHINE = "$UNAME_MACHINE" +UNAME_RELEASE = "$UNAME_RELEASE" +UNAME_SYSTEM = "$UNAME_SYSTEM" +UNAME_VERSION = "$UNAME_VERSION" +EOF + +exit 1 + +# Local variables: +# eval: (add-hook 'before-save-hook 'time-stamp) +# time-stamp-start: "timestamp='" +# time-stamp-format: "%:y-%02m-%02d" +# time-stamp-end: "'" +# End: diff --git a/config.h.in b/config.h.in new file mode 100644 index 0000000..332d702 --- /dev/null +++ b/config.h.in @@ -0,0 +1,227 @@ +/* config.h.in. Generated from configure.ac by autoheader. */ + +/* Define to 1 if you have the header file. */ +#undef HAVE_ALLOCA_H + +/* __auto_type is available */ +#undef HAVE_AUTO_TYPE + +/* Define to 1 if you have the header file. */ +#undef HAVE_BYTESWAP_H + +/* com_err found at compile time. */ +#undef HAVE_COM_ERR + +/* curl found at compile time. */ +#undef HAVE_CURL + +/* CURLOPT_UNIX_SOCKET_PATH found at compile time. */ +#undef HAVE_CURLOPT_UNIX_SOCKET_PATH + +/* Define to 1 if you have the declaration of `program_invocation_short_name', + and to 0 if you don't. */ +#undef HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME + +/* Define to 1 if you have the `dladdr' function. */ +#undef HAVE_DLADDR + +/* Define to 1 if you have the header file. */ +#undef HAVE_DLFCN_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_ENDIAN_H + +/* ext2fs found at compile time. */ +#undef HAVE_EXT2FS + +/* Define to 1 if you have the `fdatasync' function. */ +#undef HAVE_FDATASYNC + +/* Define to 1 if you have the `get_current_dir_name' function. */ +#undef HAVE_GET_CURRENT_DIR_NAME + +/* gnutls found at compile time. */ +#undef HAVE_GNUTLS + +/* Define to 1 if you have the `gnutls_base64_decode2' function. */ +#undef HAVE_GNUTLS_BASE64_DECODE2 + +/* Define to 1 if you have the `gnutls_certificate_set_known_dh_params' + function. */ +#undef HAVE_GNUTLS_CERTIFICATE_SET_KNOWN_DH_PARAMS + +/* Define to 1 if you have the `gnutls_session_set_verify_cert' function. */ +#undef HAVE_GNUTLS_SESSION_SET_VERIFY_CERT + +/* Define to 1 if you have the header file. */ +#undef HAVE_INTTYPES_H + +/* libguestfs found at compile time. */ +#undef HAVE_LIBGUESTFS + +/* liblzma found at compile time. */ +#undef HAVE_LIBLZMA + +/* libselinux found at compile time. */ +#undef HAVE_LIBSELINUX + +/* libvirt found at compile time. */ +#undef HAVE_LIBVIRT + +/* Define to 1 if you have the `lua_isinteger' function. */ +#undef HAVE_LUA_ISINTEGER + +/* Define to 1 if you have the header file. */ +#undef HAVE_MEMORY_H + +/* Define to 1 if you have the `mkostemp' function. */ +#undef HAVE_MKOSTEMP + +/* Define if you have POSIX threads libraries and header files. */ +#undef HAVE_PTHREAD + +/* Have PTHREAD_PRIO_INHERIT. */ +#undef HAVE_PTHREAD_PRIO_INHERIT + +/* Found PyString_AsString in libpython. */ +#undef HAVE_PYSTRING_ASSTRING + +/* Found PyString_FromString in libpython. */ +#undef HAVE_PYSTRING_FROMSTRING + +/* Python library found at compile time */ +#undef HAVE_PYTHON + +/* Found PyUnicode_AsUTF8 in libpython. */ +#undef HAVE_PYUNICODE_ASUTF8 + +/* Define to 1 if you have the header file. */ +#undef HAVE_STDINT_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_STDLIB_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_STRINGS_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_STRING_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_SYS_ENDIAN_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_SYS_PRCTL_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_SYS_PROCCTL_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_SYS_STAT_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_SYS_TYPES_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_UNISTD_H + +/* Valgrind headers found at compile time */ +#undef HAVE_VALGRIND + +/* Define to 1 if vfprintf supports %m. */ +#undef HAVE_VFPRINTF_PERCENT_M + +/* zlib found at compile time. */ +#undef HAVE_ZLIB + +/* Program used by iso plugin to make ISOs. */ +#undef ISOPROG + +/* Temporary directory for large files */ +#undef LARGE_TMPDIR + +/* Define to the sub-directory where libtool stores uninstalled libraries. */ +#undef LT_OBJDIR + +/* Name of package */ +#undef PACKAGE + +/* Define to the address where bug reports for this package should be sent. */ +#undef PACKAGE_BUGREPORT + +/* Define to the full name of this package. */ +#undef PACKAGE_NAME + +/* Define to the full name and version of this package. */ +#undef PACKAGE_STRING + +/* Define to the one symbol short name of this package. */ +#undef PACKAGE_TARNAME + +/* Define to the home page for this package. */ +#undef PACKAGE_URL + +/* Define to the version of this package. */ +#undef PACKAGE_VERSION + +/* Define to 1 if the C compiler supports function prototypes. */ +#undef PROTOTYPES + +/* Define to necessary symbol if this constant uses a non-standard name on + your system. */ +#undef PTHREAD_CREATE_JOINABLE + +/* Define to 1 if you have the ANSI C header files. */ +#undef STDC_HEADERS + +/* Default TLS session priority string */ +#undef TLS_PRIORITY + +/* Enable extensions on AIX 3, Interix. */ +#ifndef _ALL_SOURCE +# undef _ALL_SOURCE +#endif +/* Enable GNU extensions on systems that have them. */ +#ifndef _GNU_SOURCE +# undef _GNU_SOURCE +#endif +/* Enable threading extensions on Solaris. */ +#ifndef _POSIX_PTHREAD_SEMANTICS +# undef _POSIX_PTHREAD_SEMANTICS +#endif +/* Enable extensions on HP NonStop. */ +#ifndef _TANDEM_SOURCE +# undef _TANDEM_SOURCE +#endif +/* Enable general extensions on Solaris. */ +#ifndef __EXTENSIONS__ +# undef __EXTENSIONS__ +#endif + + +/* Version number of package */ +#undef VERSION + +/* Enable large inode numbers on Mac OS X 10.5. */ +#ifndef _DARWIN_USE_64_BIT_INODE +# define _DARWIN_USE_64_BIT_INODE 1 +#endif + +/* Number of bits in a file offset, on hosts where this is settable. */ +#undef _FILE_OFFSET_BITS + +/* Define for large files, on AIX-style hosts. */ +#undef _LARGE_FILES + +/* Define to 1 if on MINIX. */ +#undef _MINIX + +/* Define to 2 if the system does not provide POSIX.1 features except with + this defined. */ +#undef _POSIX_1_SOURCE + +/* Define to 1 if you need to in order for `stat' and other things to work. */ +#undef _POSIX_SOURCE + +/* Define like PROTOTYPES; this can be used by system headers. */ +#undef __PROTOTYPES diff --git a/config.sub b/config.sub new file mode 100755 index 0000000..20f7cf2 --- /dev/null +++ b/config.sub @@ -0,0 +1,1833 @@ +#! /bin/sh +# Configuration validation subroutine script. +# Copyright 1992-2018 Free Software Foundation, Inc. + +timestamp='2018-05-05' + +# This file is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, see . +# +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that +# program. This Exception is an additional permission under section 7 +# of the GNU General Public License, version 3 ("GPLv3"). + + +# Please send patches to . +# +# Configuration subroutine to validate and canonicalize a configuration type. +# Supply the specified configuration type as an argument. +# If it is invalid, we print an error message on stderr and exit with code 1. +# Otherwise, we print the canonical config type on stdout and succeed. + +# You can get the latest version of this script from: +# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub + +# This file is supposed to be the same for all GNU packages +# and recognize all the CPU types, system types and aliases +# that are meaningful with *any* GNU software. +# Each package is responsible for reporting which valid configurations +# it does not support. The user should be able to distinguish +# a failure to support a valid configuration from a meaningless +# configuration. + +# The goal of this file is to map all the various variations of a given +# machine specification into a single specification in the form: +# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM +# or in some cases, the newer four-part form: +# CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM +# It is wrong to echo any other type of specification. + +me=`echo "$0" | sed -e 's,.*/,,'` + +usage="\ +Usage: $0 [OPTION] CPU-MFR-OPSYS or ALIAS + +Canonicalize a configuration name. + +Options: + -h, --help print this help, then exit + -t, --time-stamp print date of last modification, then exit + -v, --version print version number, then exit + +Report bugs and patches to ." + +version="\ +GNU config.sub ($timestamp) + +Copyright 1992-2018 Free Software Foundation, Inc. + +This is free software; see the source for copying conditions. There is NO +warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE." + +help=" +Try \`$me --help' for more information." + +# Parse command line +while test $# -gt 0 ; do + case $1 in + --time-stamp | --time* | -t ) + echo "$timestamp" ; exit ;; + --version | -v ) + echo "$version" ; exit ;; + --help | --h* | -h ) + echo "$usage"; exit ;; + -- ) # Stop option processing + shift; break ;; + - ) # Use stdin as input. + break ;; + -* ) + echo "$me: invalid option $1$help" + exit 1 ;; + + *local*) + # First pass through any local machine types. + echo "$1" + exit ;; + + * ) + break ;; + esac +done + +case $# in + 0) echo "$me: missing argument$help" >&2 + exit 1;; + 1) ;; + *) echo "$me: too many arguments$help" >&2 + exit 1;; +esac + +# Spilt fields of configuration type +IFS="-" read -r field1 field2 field3 field4 <&2 + exit 1 + ;; + # Recognize the basic CPU types with company name. + 580-* \ + | a29k-* \ + | aarch64-* | aarch64_be-* \ + | alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \ + | alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \ + | alphapca5[67]-* | alpha64pca5[67]-* | arc-* | arceb-* \ + | arm-* | armbe-* | armle-* | armeb-* | armv*-* \ + | avr-* | avr32-* \ + | ba-* \ + | be32-* | be64-* \ + | bfin-* | bs2000-* \ + | c[123]* | c30-* | [cjt]90-* | c4x-* \ + | c8051-* | clipper-* | craynv-* | csky-* | cydra-* \ + | d10v-* | d30v-* | dlx-* \ + | e2k-* | elxsi-* \ + | f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \ + | h8300-* | h8500-* \ + | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \ + | hexagon-* \ + | i*86-* | i860-* | i960-* | ia16-* | ia64-* \ + | ip2k-* | iq2000-* \ + | k1om-* \ + | le32-* | le64-* \ + | lm32-* \ + | m32c-* | m32r-* | m32rle-* \ + | m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \ + | m88110-* | m88k-* | maxq-* | mcore-* | metag-* \ + | microblaze-* | microblazeel-* \ + | mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \ + | mips16-* \ + | mips64-* | mips64el-* \ + | mips64octeon-* | mips64octeonel-* \ + | mips64orion-* | mips64orionel-* \ + | mips64r5900-* | mips64r5900el-* \ + | mips64vr-* | mips64vrel-* \ + | mips64vr4100-* | mips64vr4100el-* \ + | mips64vr4300-* | mips64vr4300el-* \ + | mips64vr5000-* | mips64vr5000el-* \ + | mips64vr5900-* | mips64vr5900el-* \ + | mipsisa32-* | mipsisa32el-* \ + | mipsisa32r2-* | mipsisa32r2el-* \ + | mipsisa32r6-* | mipsisa32r6el-* \ + | mipsisa64-* | mipsisa64el-* \ + | mipsisa64r2-* | mipsisa64r2el-* \ + | mipsisa64r6-* | mipsisa64r6el-* \ + | mipsisa64sb1-* | mipsisa64sb1el-* \ + | mipsisa64sr71k-* | mipsisa64sr71kel-* \ + | mipsr5900-* | mipsr5900el-* \ + | mipstx39-* | mipstx39el-* \ + | mmix-* \ + | mt-* \ + | msp430-* \ + | nds32-* | nds32le-* | nds32be-* \ + | nfp-* \ + | nios-* | nios2-* | nios2eb-* | nios2el-* \ + | none-* | np1-* | ns16k-* | ns32k-* \ + | open8-* \ + | or1k*-* \ + | orion-* \ + | pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \ + | powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \ + | pru-* \ + | pyramid-* \ + | riscv32-* | riscv64-* \ + | rl78-* | romp-* | rs6000-* | rx-* \ + | sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \ + | shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \ + | sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \ + | sparclite-* \ + | sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx*-* \ + | tahoe-* \ + | tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \ + | tile*-* \ + | tron-* \ + | ubicom32-* \ + | v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \ + | vax-* \ + | visium-* \ + | wasm32-* \ + | we32k-* \ + | x86-* | x86_64-* | xc16x-* | xps100-* \ + | xstormy16-* | xtensa*-* \ + | ymp-* \ + | z8k-* | z80-*) + ;; + # Recognize the basic CPU types without company name, with glob match. + xtensa*) + basic_machine=$basic_machine-unknown + ;; + # Recognize the various machine names and aliases which stand + # for a CPU type and a company and sometimes even an OS. + 386bsd) + basic_machine=i386-pc + os=-bsd + ;; + 3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc) + basic_machine=m68000-att + ;; + 3b*) + basic_machine=we32k-att + ;; + a29khif) + basic_machine=a29k-amd + os=-udi + ;; + abacus) + basic_machine=abacus-unknown + ;; + adobe68k) + basic_machine=m68010-adobe + os=-scout + ;; + alliant | fx80) + basic_machine=fx80-alliant + ;; + altos | altos3068) + basic_machine=m68k-altos + ;; + am29k) + basic_machine=a29k-none + os=-bsd + ;; + amd64) + basic_machine=x86_64-pc + ;; + amd64-*) + basic_machine=x86_64-`echo "$basic_machine" | sed 's/^[^-]*-//'` + ;; + amdahl) + basic_machine=580-amdahl + os=-sysv + ;; + amiga | amiga-*) + basic_machine=m68k-unknown + ;; + amigaos | amigados) + basic_machine=m68k-unknown + os=-amigaos + ;; + amigaunix | amix) + basic_machine=m68k-unknown + os=-sysv4 + ;; + apollo68) + basic_machine=m68k-apollo + os=-sysv + ;; + apollo68bsd) + basic_machine=m68k-apollo + os=-bsd + ;; + aros) + basic_machine=i386-pc + os=-aros + ;; + asmjs) + basic_machine=asmjs-unknown + ;; + aux) + basic_machine=m68k-apple + os=-aux + ;; + balance) + basic_machine=ns32k-sequent + os=-dynix + ;; + blackfin) + basic_machine=bfin-unknown + os=-linux + ;; + blackfin-*) + basic_machine=bfin-`echo "$basic_machine" | sed 's/^[^-]*-//'` + os=-linux + ;; + bluegene*) + basic_machine=powerpc-ibm + os=-cnk + ;; + c54x-*) + basic_machine=tic54x-`echo "$basic_machine" | sed 's/^[^-]*-//'` + ;; + c55x-*) + basic_machine=tic55x-`echo "$basic_machine" | sed 's/^[^-]*-//'` + ;; + c6x-*) + basic_machine=tic6x-`echo "$basic_machine" | sed 's/^[^-]*-//'` + ;; + c90) + basic_machine=c90-cray + os=-unicos + ;; + cegcc) + basic_machine=arm-unknown + os=-cegcc + ;; + convex-c1) + basic_machine=c1-convex + os=-bsd + ;; + convex-c2) + basic_machine=c2-convex + os=-bsd + ;; + convex-c32) + basic_machine=c32-convex + os=-bsd + ;; + convex-c34) + basic_machine=c34-convex + os=-bsd + ;; + convex-c38) + basic_machine=c38-convex + os=-bsd + ;; + cray | j90) + basic_machine=j90-cray + os=-unicos + ;; + craynv) + basic_machine=craynv-cray + os=-unicosmp + ;; + cr16 | cr16-*) + basic_machine=cr16-unknown + os=-elf + ;; + crds | unos) + basic_machine=m68k-crds + ;; + crisv32 | crisv32-* | etraxfs*) + basic_machine=crisv32-axis + ;; + cris | cris-* | etrax*) + basic_machine=cris-axis + ;; + crx) + basic_machine=crx-unknown + os=-elf + ;; + da30 | da30-*) + basic_machine=m68k-da30 + ;; + decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn) + basic_machine=mips-dec + ;; + decsystem10* | dec10*) + basic_machine=pdp10-dec + os=-tops10 + ;; + decsystem20* | dec20*) + basic_machine=pdp10-dec + os=-tops20 + ;; + delta | 3300 | motorola-3300 | motorola-delta \ + | 3300-motorola | delta-motorola) + basic_machine=m68k-motorola + ;; + delta88) + basic_machine=m88k-motorola + os=-sysv3 + ;; + dicos) + basic_machine=i686-pc + os=-dicos + ;; + djgpp) + basic_machine=i586-pc + os=-msdosdjgpp + ;; + dpx20 | dpx20-*) + basic_machine=rs6000-bull + os=-bosx + ;; + dpx2*) + basic_machine=m68k-bull + os=-sysv3 + ;; + e500v[12]) + basic_machine=powerpc-unknown + os=$os"spe" + ;; + e500v[12]-*) + basic_machine=powerpc-`echo "$basic_machine" | sed 's/^[^-]*-//'` + os=$os"spe" + ;; + ebmon29k) + basic_machine=a29k-amd + os=-ebmon + ;; + elxsi) + basic_machine=elxsi-elxsi + os=-bsd + ;; + encore | umax | mmax) + basic_machine=ns32k-encore + ;; + es1800 | OSE68k | ose68k | ose | OSE) + basic_machine=m68k-ericsson + os=-ose + ;; + fx2800) + basic_machine=i860-alliant + ;; + genix) + basic_machine=ns32k-ns + ;; + gmicro) + basic_machine=tron-gmicro + os=-sysv + ;; + go32) + basic_machine=i386-pc + os=-go32 + ;; + h3050r* | hiux*) + basic_machine=hppa1.1-hitachi + os=-hiuxwe2 + ;; + h8300hms) + basic_machine=h8300-hitachi + os=-hms + ;; + h8300xray) + basic_machine=h8300-hitachi + os=-xray + ;; 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+ hppro) + basic_machine=hppa1.1-hp + os=-proelf + ;; + i370-ibm* | ibm*) + basic_machine=i370-ibm + ;; + i*86v32) + basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'` + os=-sysv32 + ;; + i*86v4*) + basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'` + os=-sysv4 + ;; + i*86v) + basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'` + os=-sysv + ;; + i*86sol2) + basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'` + os=-solaris2 + ;; + i386mach) + basic_machine=i386-mach + os=-mach + ;; + vsta) + basic_machine=i386-unknown + os=-vsta + ;; + iris | iris4d) + basic_machine=mips-sgi + case $os in + -irix*) + ;; + *) + os=-irix4 + ;; + esac + ;; + isi68 | isi) + basic_machine=m68k-isi + os=-sysv + ;; + leon-*|leon[3-9]-*) + basic_machine=sparc-`echo "$basic_machine" | sed 's/-.*//'` + ;; + m68knommu) + basic_machine=m68k-unknown + os=-linux + ;; + m68knommu-*) + basic_machine=m68k-`echo "$basic_machine" | sed 's/^[^-]*-//'` + os=-linux + ;; + magnum | m3230) + basic_machine=mips-mips + os=-sysv + ;; + merlin) + basic_machine=ns32k-utek + os=-sysv + ;; + microblaze*) + basic_machine=microblaze-xilinx + ;; + mingw64) + basic_machine=x86_64-pc + os=-mingw64 + ;; + mingw32) + basic_machine=i686-pc + os=-mingw32 + ;; + mingw32ce) + basic_machine=arm-unknown + os=-mingw32ce + ;; + miniframe) + basic_machine=m68000-convergent + ;; + *mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*) + basic_machine=m68k-atari + os=-mint + ;; + mips3*-*) + basic_machine=`echo "$basic_machine" | sed -e 's/mips3/mips64/'` + ;; + mips3*) + basic_machine=`echo "$basic_machine" | sed -e 's/mips3/mips64/'`-unknown + ;; + monitor) + basic_machine=m68k-rom68k + os=-coff + ;; + morphos) + basic_machine=powerpc-unknown + os=-morphos + ;; + moxiebox) + basic_machine=moxie-unknown + os=-moxiebox + ;; + msdos) + basic_machine=i386-pc + os=-msdos + ;; + ms1-*) + basic_machine=`echo "$basic_machine" | sed -e 's/ms1-/mt-/'` + ;; + msys) + basic_machine=i686-pc + os=-msys + ;; + mvs) + basic_machine=i370-ibm + os=-mvs + ;; + nacl) + basic_machine=le32-unknown + os=-nacl + ;; + ncr3000) + basic_machine=i486-ncr + os=-sysv4 + ;; + netbsd386) + basic_machine=i386-unknown + os=-netbsd + ;; + netwinder) + basic_machine=armv4l-rebel + os=-linux + ;; + news | news700 | news800 | news900) + basic_machine=m68k-sony + os=-newsos + ;; + news1000) + basic_machine=m68030-sony + os=-newsos + ;; + news-3600 | risc-news) + basic_machine=mips-sony + os=-newsos + ;; + necv70) + basic_machine=v70-nec + os=-sysv + ;; + next | m*-next) + basic_machine=m68k-next + case $os in + -nextstep* ) + ;; + -ns2*) + os=-nextstep2 + ;; + *) + os=-nextstep3 + ;; + esac + ;; + nh3000) + basic_machine=m68k-harris + os=-cxux + ;; + nh[45]000) + basic_machine=m88k-harris + os=-cxux + ;; + nindy960) + basic_machine=i960-intel + os=-nindy + ;; + mon960) + basic_machine=i960-intel + os=-mon960 + ;; + nonstopux) + basic_machine=mips-compaq + os=-nonstopux + ;; + np1) + basic_machine=np1-gould + ;; + neo-tandem) + basic_machine=neo-tandem + ;; + nse-tandem) + basic_machine=nse-tandem + ;; + nsr-tandem) + basic_machine=nsr-tandem + ;; + nsv-tandem) + basic_machine=nsv-tandem + ;; + nsx-tandem) + basic_machine=nsx-tandem + ;; + op50n-* | op60c-*) + basic_machine=hppa1.1-oki + os=-proelf + ;; + openrisc | openrisc-*) + basic_machine=or32-unknown + ;; + os400) + basic_machine=powerpc-ibm + os=-os400 + ;; + OSE68000 | ose68000) + basic_machine=m68000-ericsson + os=-ose + ;; + os68k) + basic_machine=m68k-none + os=-os68k + ;; + pa-hitachi) + basic_machine=hppa1.1-hitachi + os=-hiuxwe2 + ;; + paragon) + basic_machine=i860-intel + os=-osf + ;; + parisc) + basic_machine=hppa-unknown + os=-linux + ;; + parisc-*) + basic_machine=hppa-`echo "$basic_machine" | sed 's/^[^-]*-//'` + os=-linux + ;; + pbd) + basic_machine=sparc-tti + ;; + pbb) + basic_machine=m68k-tti + ;; + pc532 | pc532-*) + basic_machine=ns32k-pc532 + ;; + pc98) + basic_machine=i386-pc + ;; + pc98-*) + basic_machine=i386-`echo "$basic_machine" | sed 's/^[^-]*-//'` + ;; + pentium | p5 | k5 | k6 | nexgen | viac3) + basic_machine=i586-pc + ;; + pentiumpro | p6 | 6x86 | athlon | athlon_*) + basic_machine=i686-pc + ;; + pentiumii | pentium2 | pentiumiii | pentium3) + basic_machine=i686-pc + ;; + pentium4) + basic_machine=i786-pc + ;; + pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*) + basic_machine=i586-`echo "$basic_machine" | sed 's/^[^-]*-//'` + ;; + pentiumpro-* | p6-* | 6x86-* | athlon-*) + basic_machine=i686-`echo "$basic_machine" | sed 's/^[^-]*-//'` + ;; + pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*) + basic_machine=i686-`echo "$basic_machine" | sed 's/^[^-]*-//'` + ;; + pentium4-*) + basic_machine=i786-`echo "$basic_machine" | sed 's/^[^-]*-//'` + ;; + pn) + basic_machine=pn-gould + ;; + power) basic_machine=power-ibm + ;; + ppc | ppcbe) basic_machine=powerpc-unknown + ;; + ppc-* | ppcbe-*) + basic_machine=powerpc-`echo "$basic_machine" | sed 's/^[^-]*-//'` + ;; + ppcle | powerpclittle) + basic_machine=powerpcle-unknown + ;; + ppcle-* | powerpclittle-*) + basic_machine=powerpcle-`echo "$basic_machine" | sed 's/^[^-]*-//'` + ;; + ppc64) basic_machine=powerpc64-unknown + ;; + ppc64-*) basic_machine=powerpc64-`echo "$basic_machine" | sed 's/^[^-]*-//'` + ;; + ppc64le | powerpc64little) + basic_machine=powerpc64le-unknown + ;; + ppc64le-* | powerpc64little-*) + basic_machine=powerpc64le-`echo "$basic_machine" | sed 's/^[^-]*-//'` + ;; + ps2) + basic_machine=i386-ibm + ;; + pw32) + basic_machine=i586-unknown + os=-pw32 + ;; + rdos | rdos64) + basic_machine=x86_64-pc + os=-rdos + ;; + rdos32) + basic_machine=i386-pc + os=-rdos + ;; + rom68k) + basic_machine=m68k-rom68k + os=-coff + ;; + rm[46]00) + basic_machine=mips-siemens + ;; + rtpc | rtpc-*) + basic_machine=romp-ibm + ;; + s390 | s390-*) + basic_machine=s390-ibm + ;; + s390x | s390x-*) + basic_machine=s390x-ibm + ;; + sa29200) + basic_machine=a29k-amd + os=-udi + ;; + sb1) + basic_machine=mipsisa64sb1-unknown + ;; + sb1el) + basic_machine=mipsisa64sb1el-unknown + ;; + sde) + basic_machine=mipsisa32-sde + os=-elf + ;; + sei) + basic_machine=mips-sei + os=-seiux + ;; + sequent) + basic_machine=i386-sequent + ;; + sh5el) + basic_machine=sh5le-unknown + ;; + simso-wrs) + basic_machine=sparclite-wrs + os=-vxworks + ;; + sps7) + basic_machine=m68k-bull + os=-sysv2 + ;; + spur) + basic_machine=spur-unknown + ;; + st2000) + basic_machine=m68k-tandem + ;; + stratus) + basic_machine=i860-stratus + os=-sysv4 + ;; + strongarm-* | thumb-*) + basic_machine=arm-`echo "$basic_machine" | sed 's/^[^-]*-//'` + ;; + sun2) + basic_machine=m68000-sun + ;; + sun2os3) + basic_machine=m68000-sun + os=-sunos3 + ;; + sun2os4) + basic_machine=m68000-sun + os=-sunos4 + ;; + sun3os3) + basic_machine=m68k-sun + os=-sunos3 + ;; + sun3os4) + basic_machine=m68k-sun + os=-sunos4 + ;; + sun4os3) + basic_machine=sparc-sun + os=-sunos3 + ;; + sun4os4) + basic_machine=sparc-sun + os=-sunos4 + ;; + sun4sol2) + basic_machine=sparc-sun + os=-solaris2 + ;; + sun3 | sun3-*) + basic_machine=m68k-sun + ;; + sun4) + basic_machine=sparc-sun + ;; + sun386 | sun386i | roadrunner) + basic_machine=i386-sun + ;; + sv1) + basic_machine=sv1-cray + os=-unicos + ;; + symmetry) + basic_machine=i386-sequent + os=-dynix + ;; + t3e) + basic_machine=alphaev5-cray + os=-unicos + ;; + t90) + basic_machine=t90-cray + os=-unicos + ;; + tile*) + basic_machine=$basic_machine-unknown + os=-linux-gnu + ;; + tx39) + basic_machine=mipstx39-unknown + ;; + tx39el) + basic_machine=mipstx39el-unknown + ;; + toad1) + basic_machine=pdp10-xkl + os=-tops20 + ;; + tower | tower-32) + basic_machine=m68k-ncr + ;; + tpf) + basic_machine=s390x-ibm + os=-tpf + ;; + udi29k) + basic_machine=a29k-amd + os=-udi + ;; + ultra3) + basic_machine=a29k-nyu + os=-sym1 + ;; + v810 | necv810) + basic_machine=v810-nec + os=-none + ;; + vaxv) + basic_machine=vax-dec + os=-sysv + ;; + vms) + basic_machine=vax-dec + os=-vms + ;; + vpp*|vx|vx-*) + basic_machine=f301-fujitsu + ;; + vxworks960) + basic_machine=i960-wrs + os=-vxworks + ;; + vxworks68) + basic_machine=m68k-wrs + os=-vxworks + ;; + vxworks29k) + basic_machine=a29k-wrs + os=-vxworks + ;; + w65*) + basic_machine=w65-wdc + os=-none + ;; + w89k-*) + basic_machine=hppa1.1-winbond + os=-proelf + ;; + x64) + basic_machine=x86_64-pc + ;; + xbox) + basic_machine=i686-pc + os=-mingw32 + ;; + xps | xps100) + basic_machine=xps100-honeywell + ;; + xscale-* | xscalee[bl]-*) + basic_machine=`echo "$basic_machine" | sed 's/^xscale/arm/'` + ;; + ymp) + basic_machine=ymp-cray + os=-unicos + ;; + none) + basic_machine=none-none + os=-none + ;; + +# Here we handle the default manufacturer of certain CPU types. It is in +# some cases the only manufacturer, in others, it is the most popular. + w89k) + basic_machine=hppa1.1-winbond + ;; + op50n) + basic_machine=hppa1.1-oki + ;; + op60c) + basic_machine=hppa1.1-oki + ;; + romp) + basic_machine=romp-ibm + ;; + mmix) + basic_machine=mmix-knuth + ;; + rs6000) + basic_machine=rs6000-ibm + ;; + vax) + basic_machine=vax-dec + ;; + pdp11) + basic_machine=pdp11-dec + ;; + we32k) + basic_machine=we32k-att + ;; + sh[1234] | sh[24]a | sh[24]aeb | sh[34]eb | sh[1234]le | sh[23]ele) + basic_machine=sh-unknown + ;; + cydra) + basic_machine=cydra-cydrome + ;; + orion) + basic_machine=orion-highlevel + ;; + orion105) + basic_machine=clipper-highlevel + ;; + mac | mpw | mac-mpw) + basic_machine=m68k-apple + ;; + pmac | pmac-mpw) + basic_machine=powerpc-apple + ;; + *-unknown) + # Make sure to match an already-canonicalized machine name. + ;; + *) + echo Invalid configuration \`"$1"\': machine \`"$basic_machine"\' not recognized 1>&2 + exit 1 + ;; +esac + +# Here we canonicalize certain aliases for manufacturers. +case $basic_machine in + *-digital*) + basic_machine=`echo "$basic_machine" | sed 's/digital.*/dec/'` + ;; + *-commodore*) + basic_machine=`echo "$basic_machine" | sed 's/commodore.*/cbm/'` + ;; + *) + ;; +esac + +# Decode manufacturer-specific aliases for certain operating systems. + +if [ x$os != x ] +then +case $os in + # First match some system type aliases that might get confused + # with valid system types. + # -solaris* is a basic system type, with this one exception. + -auroraux) + os=-auroraux + ;; + -solaris1 | -solaris1.*) + os=`echo $os | sed -e 's|solaris1|sunos4|'` + ;; + -solaris) + os=-solaris2 + ;; + -unixware*) + os=-sysv4.2uw + ;; + -gnu/linux*) + os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'` + ;; + # es1800 is here to avoid being matched by es* (a different OS) + -es1800*) + os=-ose + ;; + # Now accept the basic system types. + # The portable systems comes first. + # Each alternative MUST end in a * to match a version number. + # -sysv* is not here because it comes later, after sysvr4. + -gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \ + | -*vms* | -sco* | -esix* | -isc* | -aix* | -cnk* | -sunos | -sunos[34]*\ + | -hpux* | -unos* | -osf* | -luna* | -dgux* | -auroraux* | -solaris* \ + | -sym* | -kopensolaris* | -plan9* \ + | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \ + | -aos* | -aros* | -cloudabi* | -sortix* \ + | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \ + | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \ + | -hiux* | -knetbsd* | -mirbsd* | -netbsd* \ + | -bitrig* | -openbsd* | -solidbsd* | -libertybsd* \ + | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \ + | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \ + | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \ + | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* | -hcos* \ + | -chorusos* | -chorusrdb* | -cegcc* | -glidix* \ + | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \ + | -midipix* | -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \ + | -linux-newlib* | -linux-musl* | -linux-uclibc* \ + | -uxpv* | -beos* | -mpeix* | -udk* | -moxiebox* \ + | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* \ + | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \ + | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \ + | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \ + | -morphos* | -superux* | -rtmk* | -windiss* \ + | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \ + | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es* \ + | -onefs* | -tirtos* | -phoenix* | -fuchsia* | -redox* | -bme* \ + | -midnightbsd*) + # Remember, each alternative MUST END IN *, to match a version number. + ;; + -qnx*) + case $basic_machine in + x86-* | i*86-*) + ;; + *) + os=-nto$os + ;; + esac + ;; + -nto-qnx*) + ;; + -nto*) + os=`echo $os | sed -e 's|nto|nto-qnx|'` + ;; + -sim | -xray | -os68k* | -v88r* \ + | -windows* | -osx | -abug | -netware* | -os9* \ + | -macos* | -mpw* | -magic* | -mmixware* | -mon960* | -lnews*) + ;; + -mac*) + os=`echo "$os" | sed -e 's|mac|macos|'` + ;; + -linux-dietlibc) + os=-linux-dietlibc + ;; + -linux*) + os=`echo $os | sed -e 's|linux|linux-gnu|'` + ;; + -sunos5*) + os=`echo "$os" | sed -e 's|sunos5|solaris2|'` + ;; + -sunos6*) + os=`echo "$os" | sed -e 's|sunos6|solaris3|'` + ;; + -opened*) + os=-openedition + ;; + -os400*) + os=-os400 + ;; + -wince*) + os=-wince + ;; + -utek*) + os=-bsd + ;; + -dynix*) + os=-bsd + ;; + -acis*) + os=-aos + ;; + -atheos*) + os=-atheos + ;; + -syllable*) + os=-syllable + ;; + -386bsd) + os=-bsd + ;; + -ctix* | -uts*) + os=-sysv + ;; + -nova*) + os=-rtmk-nova + ;; + -ns2) + os=-nextstep2 + ;; + -nsk*) + os=-nsk + ;; + # Preserve the version number of sinix5. + -sinix5.*) + os=`echo $os | sed -e 's|sinix|sysv|'` + ;; + -sinix*) + os=-sysv4 + ;; + -tpf*) + os=-tpf + ;; + -triton*) + os=-sysv3 + ;; + -oss*) + os=-sysv3 + ;; + -svr4*) + os=-sysv4 + ;; + -svr3) + os=-sysv3 + ;; + -sysvr4) + os=-sysv4 + ;; + # This must come after -sysvr4. + -sysv*) + ;; + -ose*) + os=-ose + ;; + -*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*) + os=-mint + ;; + -zvmoe) + os=-zvmoe + ;; + -dicos*) + os=-dicos + ;; + -pikeos*) + # Until real need of OS specific support for + # particular features comes up, bare metal + # configurations are quite functional. + case $basic_machine in + arm*) + os=-eabi + ;; + *) + os=-elf + ;; + esac + ;; + -nacl*) + ;; + -ios) + ;; + -none) + ;; + -*-eabi) + case $basic_machine in + arm*) + ;; + esac + ;; + *) + # Get rid of the `-' at the beginning of $os. + os=`echo $os | sed 's/[^-]*-//'` + echo Invalid configuration \`"$1"\': system \`"$os"\' not recognized 1>&2 + exit 1 + ;; +esac +else + +# Here we handle the default operating systems that come with various machines. +# The value should be what the vendor currently ships out the door with their +# machine or put another way, the most popular os provided with the machine. + +# Note that if you're going to try to match "-MANUFACTURER" here (say, +# "-sun"), then you have to tell the case statement up towards the top +# that MANUFACTURER isn't an operating system. Otherwise, code above +# will signal an error saying that MANUFACTURER isn't an operating +# system, and we'll never get to this point. + +case $basic_machine in + score-*) + os=-elf + ;; + spu-*) + os=-elf + ;; + *-acorn) + os=-riscix1.2 + ;; + arm*-rebel) + os=-linux + ;; + arm*-semi) + os=-aout + ;; + c4x-* | tic4x-*) + os=-coff + ;; + c8051-*) + os=-elf + ;; + hexagon-*) + os=-elf + ;; + tic54x-*) + os=-coff + ;; + tic55x-*) + os=-coff + ;; + tic6x-*) + os=-coff + ;; + # This must come before the *-dec entry. + pdp10-*) + os=-tops20 + ;; + pdp11-*) + os=-none + ;; + *-dec | vax-*) + os=-ultrix4.2 + ;; + m68*-apollo) + os=-domain + ;; + i386-sun) + os=-sunos4.0.2 + ;; + m68000-sun) + os=-sunos3 + ;; + m68*-cisco) + os=-aout + ;; + mep-*) + os=-elf + ;; + mips*-cisco) + os=-elf + ;; + mips*-*) + os=-elf + ;; + or32-*) + os=-coff + ;; + *-tti) # must be before sparc entry or we get the wrong os. + os=-sysv3 + ;; + sparc-* | *-sun) + os=-sunos4.1.1 + ;; + pru-*) + os=-elf + ;; + *-be) + os=-beos + ;; + *-ibm) + os=-aix + ;; + *-knuth) + os=-mmixware + ;; + *-wec) + os=-proelf + ;; + *-winbond) + os=-proelf + ;; + *-oki) + os=-proelf + ;; + *-hp) + os=-hpux + ;; + *-hitachi) + os=-hiux + ;; + i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent) + os=-sysv + ;; + *-cbm) + os=-amigaos + ;; + *-dg) + os=-dgux + ;; + *-dolphin) + os=-sysv3 + ;; + m68k-ccur) + os=-rtu + ;; + m88k-omron*) + os=-luna + ;; + *-next) + os=-nextstep + ;; + *-sequent) + os=-ptx + ;; + *-crds) + os=-unos + ;; + *-ns) + os=-genix + ;; + i370-*) + os=-mvs + ;; + *-gould) + os=-sysv + ;; + *-highlevel) + os=-bsd + ;; + *-encore) + os=-bsd + ;; + *-sgi) + os=-irix + ;; + *-siemens) + os=-sysv4 + ;; + *-masscomp) + os=-rtu + ;; + f30[01]-fujitsu | f700-fujitsu) + os=-uxpv + ;; + *-rom68k) + os=-coff + ;; + *-*bug) + os=-coff + ;; + *-apple) + os=-macos + ;; + *-atari*) + os=-mint + ;; + *) + os=-none + ;; +esac +fi + +# Here we handle the case where we know the os, and the CPU type, but not the +# manufacturer. We pick the logical manufacturer. +vendor=unknown +case $basic_machine in + *-unknown) + case $os in + -riscix*) + vendor=acorn + ;; + -sunos*) + vendor=sun + ;; + -cnk*|-aix*) + vendor=ibm + ;; + -beos*) + vendor=be + ;; + -hpux*) + vendor=hp + ;; + -mpeix*) + vendor=hp + ;; + -hiux*) + vendor=hitachi + ;; + -unos*) + vendor=crds + ;; + -dgux*) + vendor=dg + ;; + -luna*) + vendor=omron + ;; + -genix*) + vendor=ns + ;; + -mvs* | -opened*) + vendor=ibm + ;; + -os400*) + vendor=ibm + ;; + -ptx*) + vendor=sequent + ;; + -tpf*) + vendor=ibm + ;; + -vxsim* | -vxworks* | -windiss*) + vendor=wrs + ;; + -aux*) + vendor=apple + ;; + -hms*) + vendor=hitachi + ;; + -mpw* | -macos*) + vendor=apple + ;; + -*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*) + vendor=atari + ;; + -vos*) + vendor=stratus + ;; + esac + basic_machine=`echo "$basic_machine" | sed "s/unknown/$vendor/"` + ;; +esac + +echo "$basic_machine$os" +exit + +# Local variables: +# eval: (add-hook 'before-save-hook 'time-stamp) +# time-stamp-start: "timestamp='" +# time-stamp-format: "%:y-%02m-%02d" +# time-stamp-end: "'" +# End: diff --git a/configure b/configure new file mode 100755 index 0000000..dc0f677 --- /dev/null +++ b/configure @@ -0,0 +1,24555 @@ +#! /bin/sh +# Guess values for system-dependent variables and create Makefiles. +# Generated by GNU Autoconf 2.69 for nbdkit 1.12.2. +# +# +# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc. +# +# +# This configure script is free software; the Free Software Foundation +# gives unlimited permission to copy, distribute and modify it. +## -------------------- ## +## M4sh Initialization. ## +## -------------------- ## + +# Be more Bourne compatible +DUALCASE=1; export DUALCASE # for MKS sh +if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then : + emulate sh + NULLCMD=: + # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which + # is contrary to our usage. Disable this feature. + alias -g '${1+"$@"}'='"$@"' + setopt NO_GLOB_SUBST +else + case `(set -o) 2>/dev/null` in #( + *posix*) : + set -o posix ;; #( + *) : + ;; +esac +fi + + +as_nl=' +' +export as_nl +# Printing a long string crashes Solaris 7 /usr/bin/printf. +as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' +as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo +as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo +# Prefer a ksh shell builtin over an external printf program on Solaris, +# but without wasting forks for bash or zsh. +if test -z "$BASH_VERSION$ZSH_VERSION" \ + && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then + as_echo='print -r --' + as_echo_n='print -rn --' +elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then + as_echo='printf %s\n' + as_echo_n='printf %s' +else + if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then + as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"' + as_echo_n='/usr/ucb/echo -n' + else + as_echo_body='eval expr "X$1" : "X\\(.*\\)"' + as_echo_n_body='eval + arg=$1; + case $arg in #( + *"$as_nl"*) + expr "X$arg" : "X\\(.*\\)$as_nl"; + arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;; + esac; + expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl" + ' + export as_echo_n_body + as_echo_n='sh -c $as_echo_n_body as_echo' + fi + export as_echo_body + as_echo='sh -c $as_echo_body as_echo' +fi + +# The user is always right. +if test "${PATH_SEPARATOR+set}" != set; then + PATH_SEPARATOR=: + (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && { + (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 || + PATH_SEPARATOR=';' + } +fi + + +# IFS +# We need space, tab and new line, in precisely that order. Quoting is +# there to prevent editors from complaining about space-tab. +# (If _AS_PATH_WALK were called with IFS unset, it would disable word +# splitting by setting IFS to empty value.) +IFS=" "" $as_nl" + +# Find who we are. Look in the path if we contain no directory separator. +as_myself= +case $0 in #(( + *[\\/]* ) as_myself=$0 ;; + *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break + done +IFS=$as_save_IFS + + ;; +esac +# We did not find ourselves, most probably we were run as `sh COMMAND' +# in which case we are not to be found in the path. +if test "x$as_myself" = x; then + as_myself=$0 +fi +if test ! -f "$as_myself"; then + $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2 + exit 1 +fi + +# Unset variables that we do not need and which cause bugs (e.g. in +# pre-3.0 UWIN ksh). But do not cause bugs in bash 2.01; the "|| exit 1" +# suppresses any "Segmentation fault" message there. '((' could +# trigger a bug in pdksh 5.2.14. +for as_var in BASH_ENV ENV MAIL MAILPATH +do eval test x\${$as_var+set} = xset \ + && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || : +done +PS1='$ ' +PS2='> ' +PS4='+ ' + +# NLS nuisances. +LC_ALL=C +export LC_ALL +LANGUAGE=C +export LANGUAGE + +# CDPATH. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + +# Use a proper internal environment variable to ensure we don't fall + # into an infinite loop, continuously re-executing ourselves. + if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then + _as_can_reexec=no; export _as_can_reexec; + # We cannot yet assume a decent shell, so we have to provide a +# neutralization value for shells without unset; and this also +# works around shells that cannot unset nonexistent variables. +# Preserve -v and -x to the replacement shell. +BASH_ENV=/dev/null +ENV=/dev/null +(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV +case $- in # (((( + *v*x* | *x*v* ) as_opts=-vx ;; + *v* ) as_opts=-v ;; + *x* ) as_opts=-x ;; + * ) as_opts= ;; +esac +exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"} +# Admittedly, this is quite paranoid, since all the known shells bail +# out after a failed `exec'. +$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2 +as_fn_exit 255 + fi + # We don't want this to propagate to other subprocesses. + { _as_can_reexec=; unset _as_can_reexec;} +if test "x$CONFIG_SHELL" = x; then + as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then : + emulate sh + NULLCMD=: + # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which + # is contrary to our usage. Disable this feature. + alias -g '\${1+\"\$@\"}'='\"\$@\"' + setopt NO_GLOB_SUBST +else + case \`(set -o) 2>/dev/null\` in #( + *posix*) : + set -o posix ;; #( + *) : + ;; +esac +fi +" + as_required="as_fn_return () { (exit \$1); } +as_fn_success () { as_fn_return 0; } +as_fn_failure () { as_fn_return 1; } +as_fn_ret_success () { return 0; } +as_fn_ret_failure () { return 1; } + +exitcode=0 +as_fn_success || { exitcode=1; echo as_fn_success failed.; } +as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; } +as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; } +as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; } +if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then : + +else + exitcode=1; echo positional parameters were not saved. +fi +test x\$exitcode = x0 || exit 1 +test -x / || exit 1" + as_suggested=" as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO + as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO + eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" && + test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1 +test \$(( 1 + 1 )) = 2 || exit 1 + + test -n \"\${ZSH_VERSION+set}\${BASH_VERSION+set}\" || ( + ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' + ECHO=\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO + ECHO=\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO + PATH=/empty FPATH=/empty; export PATH FPATH + test \"X\`printf %s \$ECHO\`\" = \"X\$ECHO\" \\ + || test \"X\`print -r -- \$ECHO\`\" = \"X\$ECHO\" ) || exit 1" + if (eval "$as_required") 2>/dev/null; then : + as_have_required=yes +else + as_have_required=no +fi + if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then : + +else + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +as_found=false +for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + as_found=: + case $as_dir in #( + /*) + for as_base in sh bash ksh sh5; do + # Try only shells that exist, to save several forks. + as_shell=$as_dir/$as_base + if { test -f "$as_shell" || test -f "$as_shell.exe"; } && + { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then : + CONFIG_SHELL=$as_shell as_have_required=yes + if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then : + break 2 +fi +fi + done;; + esac + as_found=false +done +$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } && + { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then : + CONFIG_SHELL=$SHELL as_have_required=yes +fi; } +IFS=$as_save_IFS + + + if test "x$CONFIG_SHELL" != x; then : + export CONFIG_SHELL + # We cannot yet assume a decent shell, so we have to provide a +# neutralization value for shells without unset; and this also +# works around shells that cannot unset nonexistent variables. +# Preserve -v and -x to the replacement shell. +BASH_ENV=/dev/null +ENV=/dev/null +(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV +case $- in # (((( + *v*x* | *x*v* ) as_opts=-vx ;; + *v* ) as_opts=-v ;; + *x* ) as_opts=-x ;; + * ) as_opts= ;; +esac +exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"} +# Admittedly, this is quite paranoid, since all the known shells bail +# out after a failed `exec'. +$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2 +exit 255 +fi + + if test x$as_have_required = xno; then : + $as_echo "$0: This script requires a shell more modern than all" + $as_echo "$0: the shells that I found on your system." + if test x${ZSH_VERSION+set} = xset ; then + $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should" + $as_echo "$0: be upgraded to zsh 4.3.4 or later." + else + $as_echo "$0: Please tell bug-autoconf@gnu.org about your system, +$0: including any error possibly output before this +$0: message. Then install a modern shell, or manually run +$0: the script under such a shell if you do have one." + fi + exit 1 +fi +fi +fi +SHELL=${CONFIG_SHELL-/bin/sh} +export SHELL +# Unset more variables known to interfere with behavior of common tools. +CLICOLOR_FORCE= GREP_OPTIONS= +unset CLICOLOR_FORCE GREP_OPTIONS + +## --------------------- ## +## M4sh Shell Functions. ## +## --------------------- ## +# as_fn_unset VAR +# --------------- +# Portably unset VAR. +as_fn_unset () +{ + { eval $1=; unset $1;} +} +as_unset=as_fn_unset + +# as_fn_set_status STATUS +# ----------------------- +# Set $? to STATUS, without forking. +as_fn_set_status () +{ + return $1 +} # as_fn_set_status + +# as_fn_exit STATUS +# ----------------- +# Exit the shell with STATUS, even in a "trap 0" or "set -e" context. +as_fn_exit () +{ + set +e + as_fn_set_status $1 + exit $1 +} # as_fn_exit + +# as_fn_mkdir_p +# ------------- +# Create "$as_dir" as a directory, including parents if necessary. +as_fn_mkdir_p () +{ + + case $as_dir in #( + -*) as_dir=./$as_dir;; + esac + test -d "$as_dir" || eval $as_mkdir_p || { + as_dirs= + while :; do + case $as_dir in #( + *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'( + *) as_qdir=$as_dir;; + esac + as_dirs="'$as_qdir' $as_dirs" + as_dir=`$as_dirname -- "$as_dir" || +$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$as_dir" : 'X\(//\)[^/]' \| \ + X"$as_dir" : 'X\(//\)$' \| \ + X"$as_dir" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X"$as_dir" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ + s//\1/ + q + } + /^X\(\/\/\)[^/].*/{ + s//\1/ + q + } + /^X\(\/\/\)$/{ + s//\1/ + q + } + /^X\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + test -d "$as_dir" && break + done + test -z "$as_dirs" || eval "mkdir $as_dirs" + } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir" + + +} # as_fn_mkdir_p + +# as_fn_executable_p FILE +# ----------------------- +# Test if FILE is an executable regular file. +as_fn_executable_p () +{ + test -f "$1" && test -x "$1" +} # as_fn_executable_p +# as_fn_append VAR VALUE +# ---------------------- +# Append the text in VALUE to the end of the definition contained in VAR. Take +# advantage of any shell optimizations that allow amortized linear growth over +# repeated appends, instead of the typical quadratic growth present in naive +# implementations. +if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then : + eval 'as_fn_append () + { + eval $1+=\$2 + }' +else + as_fn_append () + { + eval $1=\$$1\$2 + } +fi # as_fn_append + +# as_fn_arith ARG... +# ------------------ +# Perform arithmetic evaluation on the ARGs, and store the result in the +# global $as_val. Take advantage of shells that can avoid forks. The arguments +# must be portable across $(()) and expr. +if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then : + eval 'as_fn_arith () + { + as_val=$(( $* )) + }' +else + as_fn_arith () + { + as_val=`expr "$@" || test $? -eq 1` + } +fi # as_fn_arith + + +# as_fn_error STATUS ERROR [LINENO LOG_FD] +# ---------------------------------------- +# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are +# provided, also output the error to LOG_FD, referencing LINENO. Then exit the +# script with STATUS, using 1 if that was 0. +as_fn_error () +{ + as_status=$1; test $as_status -eq 0 && as_status=1 + if test "$4"; then + as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4 + fi + $as_echo "$as_me: error: $2" >&2 + as_fn_exit $as_status +} # as_fn_error + +if expr a : '\(a\)' >/dev/null 2>&1 && + test "X`expr 00001 : '.*\(...\)'`" = X001; then + as_expr=expr +else + as_expr=false +fi + +if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then + as_basename=basename +else + as_basename=false +fi + +if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then + as_dirname=dirname +else + as_dirname=false +fi + +as_me=`$as_basename -- "$0" || +$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \ + X"$0" : 'X\(//\)$' \| \ + X"$0" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X/"$0" | + sed '/^.*\/\([^/][^/]*\)\/*$/{ + s//\1/ + q + } + /^X\/\(\/\/\)$/{ + s//\1/ + q + } + /^X\/\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + +# Avoid depending upon Character Ranges. +as_cr_letters='abcdefghijklmnopqrstuvwxyz' +as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ' +as_cr_Letters=$as_cr_letters$as_cr_LETTERS +as_cr_digits='0123456789' +as_cr_alnum=$as_cr_Letters$as_cr_digits + + + as_lineno_1=$LINENO as_lineno_1a=$LINENO + as_lineno_2=$LINENO as_lineno_2a=$LINENO + eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" && + test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || { + # Blame Lee E. McMahon (1931-1989) for sed's syntax. :-) + sed -n ' + p + /[$]LINENO/= + ' <$as_myself | + sed ' + s/[$]LINENO.*/&-/ + t lineno + b + :lineno + N + :loop + s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/ + t loop + s/-\n.*// + ' >$as_me.lineno && + chmod +x "$as_me.lineno" || + { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; } + + # If we had to re-execute with $CONFIG_SHELL, we're ensured to have + # already done that, so ensure we don't try to do so again and fall + # in an infinite loop. This has already happened in practice. + _as_can_reexec=no; export _as_can_reexec + # Don't try to exec as it changes $[0], causing all sort of problems + # (the dirname of $[0] is not the place where we might find the + # original and so on. Autoconf is especially sensitive to this). + . "./$as_me.lineno" + # Exit status is that of the last command. + exit +} + +ECHO_C= ECHO_N= ECHO_T= +case `echo -n x` in #((((( +-n*) + case `echo 'xy\c'` in + *c*) ECHO_T=' ';; # ECHO_T is single tab character. + xy) ECHO_C='\c';; + *) echo `echo ksh88 bug on AIX 6.1` > /dev/null + ECHO_T=' ';; + esac;; +*) + ECHO_N='-n';; +esac + +rm -f conf$$ conf$$.exe conf$$.file +if test -d conf$$.dir; then + rm -f conf$$.dir/conf$$.file +else + rm -f conf$$.dir + mkdir conf$$.dir 2>/dev/null +fi +if (echo >conf$$.file) 2>/dev/null; then + if ln -s conf$$.file conf$$ 2>/dev/null; then + as_ln_s='ln -s' + # ... but there are two gotchas: + # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail. + # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable. + # In both cases, we have to default to `cp -pR'. + ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe || + as_ln_s='cp -pR' + elif ln conf$$.file conf$$ 2>/dev/null; then + as_ln_s=ln + else + as_ln_s='cp -pR' + 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See below for descriptions of some of the useful variables. + +Defaults for the options are specified in brackets. + +Configuration: + -h, --help display this help and exit + --help=short display options specific to this package + --help=recursive display the short help of all the included packages + -V, --version display version information and exit + -q, --quiet, --silent do not print \`checking ...' messages + --cache-file=FILE cache test results in FILE [disabled] + -C, --config-cache alias for \`--cache-file=config.cache' + -n, --no-create do not create output files + --srcdir=DIR find the sources in DIR [configure dir or \`..'] + +Installation directories: + --prefix=PREFIX install architecture-independent files in PREFIX + [$ac_default_prefix] + --exec-prefix=EPREFIX install architecture-dependent files in EPREFIX + [PREFIX] + +By default, \`make install' will install all the files in +\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc. You can specify +an installation prefix other than \`$ac_default_prefix' using \`--prefix', +for instance \`--prefix=\$HOME'. + +For better control, use the options below. + +Fine tuning of the installation directories: + --bindir=DIR user executables [EPREFIX/bin] + --sbindir=DIR system admin executables [EPREFIX/sbin] + --libexecdir=DIR program executables [EPREFIX/libexec] + --sysconfdir=DIR read-only single-machine data [PREFIX/etc] + --sharedstatedir=DIR modifiable architecture-independent data [PREFIX/com] + --localstatedir=DIR modifiable single-machine data [PREFIX/var] + --libdir=DIR object code libraries [EPREFIX/lib] + --includedir=DIR C header files [PREFIX/include] + --oldincludedir=DIR C header files for non-gcc [/usr/include] + --datarootdir=DIR read-only arch.-independent data root [PREFIX/share] + --datadir=DIR read-only architecture-independent data [DATAROOTDIR] + --infodir=DIR info documentation [DATAROOTDIR/info] + --localedir=DIR locale-dependent data [DATAROOTDIR/locale] + --mandir=DIR man documentation [DATAROOTDIR/man] + --docdir=DIR documentation root [DATAROOTDIR/doc/nbdkit] + --htmldir=DIR html documentation [DOCDIR] + --dvidir=DIR dvi documentation [DOCDIR] + --pdfdir=DIR pdf documentation [DOCDIR] + --psdir=DIR ps documentation [DOCDIR] +_ACEOF + + cat <<\_ACEOF + +Program names: + --program-prefix=PREFIX prepend PREFIX to installed program names + --program-suffix=SUFFIX append SUFFIX to installed program names + --program-transform-name=PROGRAM run sed PROGRAM on installed program names + +System types: + --build=BUILD configure for building on BUILD [guessed] + --host=HOST cross-compile to build programs to run on HOST [BUILD] +_ACEOF +fi + +if test -n "$ac_init_help"; then + case $ac_init_help in + short | recursive ) echo "Configuration of nbdkit 1.12.2:";; + esac + cat <<\_ACEOF + +Optional Features: + --disable-option-checking ignore unrecognized --enable/--with options + --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no) + --enable-FEATURE[=ARG] include FEATURE [ARG=yes] + --disable-largefile omit support for large files + --enable-dependency-tracking + do not reject slow dependency extractors + --disable-dependency-tracking + speeds up one-time build + --enable-silent-rules less verbose build output (undo: "make V=1") + --disable-silent-rules verbose build output (undo: "make V=0") + --enable-shared[=PKGS] build shared libraries [default=yes] + --enable-static[=PKGS] build static libraries [default=yes] + --enable-fast-install[=PKGS] + optimize for fast installation [default=yes] + --disable-libtool-lock avoid locking (might break parallel builds) + --enable-gcc-warnings turn on lots of GCC warnings (for developers) + --enable-valgrind enable Valgrind extensions (for developers) + --disable-plugins disable all bundled plugins and filters + --disable-perl disable Perl embed plugin + --disable-python disable Python embed plugin + --disable-ocaml disable OCaml embed plugin + --disable-rust disable Rust plugin + --disable-ruby disable Ruby plugin + --disable-tcl disable Tcl plugin + --disable-lua disable Lua plugin + --disable-vddk disable VMware VDDK plugin + +Optional Packages: + --with-PACKAGE[=ARG] use PACKAGE [ARG=yes] + --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no) + --with-pic[=PKGS] try to use only PIC/non-PIC objects [default=use + both] + --with-aix-soname=aix|svr4|both + shared library versioning (aka "SONAME") variant to + provide on AIX, [default=aix]. + --with-gnu-ld assume the C compiler uses GNU ld [default=no] + --with-sysroot[=DIR] Search for dependent libraries within DIR (or the + compiler's sysroot if not specified). + --without-iconv don't try to link against iconv [default=check] + --with-tls-priority default TLS session priority string [default=NORMAL] + --without-curl disable curl plugin [default=check] + --without-ssh disable ssh plugin [default=check] + --without-iso disable iso plugin [default=check] + --without-libvirt disable libvirt 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Some functions are actually named + something starting with __ and the normal name is an alias. */ +#if defined __stub_$2 || defined __stub___$2 +choke me +#endif + +int +main () +{ +return $2 (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + eval "$3=yes" +else + eval "$3=no" +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +fi +eval ac_res=\$$3 + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 +$as_echo "$ac_res" >&6; } + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + +} # ac_fn_c_check_func + +# ac_fn_cxx_try_compile LINENO +# ---------------------------- +# Try to compile conftest.$ac_ext, and return whether this succeeded. +ac_fn_cxx_try_compile () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + rm -f conftest.$ac_objext + if { { ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_compile") 2>conftest.err + ac_status=$? + if test -s conftest.err; then + grep -v '^ *+' conftest.err >conftest.er1 + cat conftest.er1 >&5 + mv -f conftest.er1 conftest.err + fi + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && { + test -z "$ac_cxx_werror_flag" || + test ! -s conftest.err + } && test -s conftest.$ac_objext; then : + ac_retval=0 +else + $as_echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + ac_retval=1 +fi + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + as_fn_set_status $ac_retval + +} # ac_fn_cxx_try_compile + +# ac_fn_cxx_try_cpp LINENO +# ------------------------ +# Try to preprocess conftest.$ac_ext, and return whether this succeeded. +ac_fn_cxx_try_cpp () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + if { { ac_try="$ac_cpp conftest.$ac_ext" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err + ac_status=$? + if test -s conftest.err; then + grep -v '^ *+' conftest.err >conftest.er1 + cat conftest.er1 >&5 + mv -f conftest.er1 conftest.err + fi + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } > conftest.i && { + test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" || + test ! -s conftest.err + }; then : + ac_retval=0 +else + $as_echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + ac_retval=1 +fi + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + as_fn_set_status $ac_retval + +} # ac_fn_cxx_try_cpp + +# ac_fn_cxx_try_link LINENO +# ------------------------- +# Try to link conftest.$ac_ext, and return whether this succeeded. +ac_fn_cxx_try_link () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + rm -f conftest.$ac_objext conftest$ac_exeext + if { { ac_try="$ac_link" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_link") 2>conftest.err + ac_status=$? + if test -s conftest.err; then + grep -v '^ *+' conftest.err >conftest.er1 + cat conftest.er1 >&5 + mv -f conftest.er1 conftest.err + fi + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && { + test -z "$ac_cxx_werror_flag" || + test ! -s conftest.err + } && test -s conftest$ac_exeext && { + test "$cross_compiling" = yes || + test -x conftest$ac_exeext + }; then : + ac_retval=0 +else + $as_echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + ac_retval=1 +fi + # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information + # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would + # interfere with the next link command; also delete a directory that is + # left behind by Apple's compiler. We do this before executing the actions. + rm -rf conftest.dSYM conftest_ipa8_conftest.oo + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + as_fn_set_status $ac_retval + +} # ac_fn_cxx_try_link + +# ac_fn_c_check_decl LINENO SYMBOL VAR INCLUDES +# --------------------------------------------- +# Tests whether SYMBOL is declared in INCLUDES, setting cache variable VAR +# accordingly. +ac_fn_c_check_decl () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + as_decl_name=`echo $2|sed 's/ *(.*//'` + as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'` + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $as_decl_name is declared" >&5 +$as_echo_n "checking whether $as_decl_name is declared... " >&6; } +if eval \${$3+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$4 +int +main () +{ +#ifndef $as_decl_name +#ifdef __cplusplus + (void) $as_decl_use; +#else + (void) $as_decl_name; +#endif +#endif + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + eval "$3=yes" +else + eval "$3=no" +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +eval ac_res=\$$3 + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 +$as_echo "$ac_res" >&6; } + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + +} # ac_fn_c_check_decl +cat >config.log <<_ACEOF +This file contains any messages produced by compilers while +running configure, to aid debugging if configure makes a mistake. + +It was created by nbdkit $as_me 1.12.2, which was +generated by GNU Autoconf 2.69. Invocation command line was + + $ $0 $@ + +_ACEOF +exec 5>>config.log +{ +cat <<_ASUNAME +## --------- ## +## Platform. ## +## --------- ## + +hostname = `(hostname || uname -n) 2>/dev/null | sed 1q` +uname -m = `(uname -m) 2>/dev/null || echo unknown` +uname -r = `(uname -r) 2>/dev/null || echo unknown` +uname -s = `(uname -s) 2>/dev/null || echo unknown` +uname -v = `(uname -v) 2>/dev/null || echo unknown` + +/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown` +/bin/uname -X = `(/bin/uname -X) 2>/dev/null || echo unknown` + +/bin/arch = `(/bin/arch) 2>/dev/null || echo unknown` +/usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null || echo unknown` +/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown` +/usr/bin/hostinfo = `(/usr/bin/hostinfo) 2>/dev/null || echo unknown` +/bin/machine = `(/bin/machine) 2>/dev/null || echo unknown` +/usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null || echo unknown` +/bin/universe = `(/bin/universe) 2>/dev/null || echo unknown` + +_ASUNAME + +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + $as_echo "PATH: $as_dir" + done +IFS=$as_save_IFS + +} >&5 + +cat >&5 <<_ACEOF + + +## ----------- ## +## Core tests. ## +## ----------- ## + +_ACEOF + + +# Keep a trace of the command line. +# Strip out --no-create and --no-recursion so they do not pile up. +# Strip out --silent because we don't want to record it for future runs. +# Also quote any args containing shell meta-characters. +# Make two passes to allow for proper duplicate-argument suppression. +ac_configure_args= +ac_configure_args0= +ac_configure_args1= +ac_must_keep_next=false +for ac_pass in 1 2 +do + for ac_arg + do + case $ac_arg in + -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;; + -q | -quiet | --quiet | --quie | --qui | --qu | --q \ + | -silent | --silent | --silen | --sile | --sil) + continue ;; + *\'*) + ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;; + esac + case $ac_pass in + 1) as_fn_append ac_configure_args0 " '$ac_arg'" ;; + 2) + as_fn_append ac_configure_args1 " '$ac_arg'" + if test $ac_must_keep_next = true; then + ac_must_keep_next=false # Got value, back to normal. + else + case $ac_arg in + *=* | --config-cache | -C | -disable-* | --disable-* \ + | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \ + | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \ + | -with-* | --with-* | -without-* | --without-* | --x) + case "$ac_configure_args0 " in + "$ac_configure_args1"*" '$ac_arg' "* ) continue ;; + esac + ;; + -* ) ac_must_keep_next=true ;; + esac + fi + as_fn_append ac_configure_args " '$ac_arg'" + ;; + esac + done +done +{ ac_configure_args0=; unset ac_configure_args0;} +{ ac_configure_args1=; unset ac_configure_args1;} + +# When interrupted or exit'd, cleanup temporary files, and complete +# config.log. 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" >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="${ac_tool_prefix}gcc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_CC"; then + ac_ct_CC=$CC + # Extract the first word of "gcc", so it can be a program name with args. +set dummy gcc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="gcc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 +$as_echo "$ac_ct_CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_CC" = x; then + CC="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +else + CC="$ac_cv_prog_CC" +fi + +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args. +set dummy ${ac_tool_prefix}cc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="${ac_tool_prefix}cc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + fi +fi +if test -z "$CC"; then + # Extract the first word of "cc", so it can be a program name with args. +set dummy cc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else + ac_prog_rejected=no +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then + ac_prog_rejected=yes + continue + fi + ac_cv_prog_CC="cc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +if test $ac_prog_rejected = yes; then + # We found a bogon in the path, so make sure we never use it. + set dummy $ac_cv_prog_CC + shift + if test $# != 0; then + # We chose a different compiler from the bogus one. + # However, it has the same basename, so the bogon will be chosen + # first if we set CC to just the basename; use the full file name. + shift + ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@" + fi +fi +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + for ac_prog in cl.exe + do + # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. +set dummy $ac_tool_prefix$ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="$ac_tool_prefix$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$CC" && break + done +fi +if test -z "$CC"; then + ac_ct_CC=$CC + for ac_prog in cl.exe +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 +$as_echo "$ac_ct_CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$ac_ct_CC" && break +done + + if test "x$ac_ct_CC" = x; then + CC="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +fi + +fi + + +test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "no acceptable C compiler found in \$PATH +See \`config.log' for more details" "$LINENO" 5; } + +# Provide some information about the compiler. +$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5 +set X $ac_compile +ac_compiler=$2 +for ac_option in --version -v -V -qversion; do + { { ac_try="$ac_compiler $ac_option >&5" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_compiler $ac_option >&5") 2>conftest.err + ac_status=$? + if test -s conftest.err; then + sed '10a\ +... rest of stderr output deleted ... + 10q' conftest.err >conftest.er1 + cat conftest.er1 >&5 + fi + rm -f conftest.er1 conftest.err + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } +done + +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +ac_clean_files_save=$ac_clean_files +ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out" +# Try to create an executable without -o first, disregard a.out. +# It will help us diagnose broken compilers, and finding out an intuition +# of exeext. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5 +$as_echo_n "checking whether the C compiler works... " >&6; } +ac_link_default=`$as_echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'` + +# The possible output files: +ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*" + +ac_rmfiles= +for ac_file in $ac_files +do + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;; + * ) ac_rmfiles="$ac_rmfiles $ac_file";; + esac +done +rm -f $ac_rmfiles + +if { { ac_try="$ac_link_default" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_link_default") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then : + # Autoconf-2.13 could set the ac_cv_exeext variable to `no'. +# So ignore a value of `no', otherwise this would lead to `EXEEXT = no' +# in a Makefile. We should not override ac_cv_exeext if it was cached, +# so that the user can short-circuit this test for compilers unknown to +# Autoconf. +for ac_file in $ac_files '' +do + test -f "$ac_file" || continue + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) + ;; + [ab].out ) + # We found the default executable, but exeext='' is most + # certainly right. + break;; + *.* ) + if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no; + then :; else + ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` + fi + # We set ac_cv_exeext here because the later test for it is not + # safe: cross compilers may not add the suffix if given an `-o' + # argument, so we may need to know it at that point already. + # Even if this section looks crufty: it has the advantage of + # actually working. + break;; + * ) + break;; + esac +done +test "$ac_cv_exeext" = no && ac_cv_exeext= + +else + ac_file='' +fi +if test -z "$ac_file"; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +$as_echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error 77 "C compiler cannot create executables +See \`config.log' for more details" "$LINENO" 5; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5 +$as_echo_n "checking for C compiler default output file name... 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For instance with Cygwin, `ls conftest' will +# work properly (i.e., refer to `conftest.exe'), while it won't with +# `rm'. +for ac_file in conftest.exe conftest conftest.*; do + test -f "$ac_file" || continue + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;; + *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` + break;; + * ) break;; + esac +done +else + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? 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" >&6; } +if test "$cross_compiling" != yes; then + { { ac_try="$ac_link" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_link") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + if { ac_try='./conftest$ac_cv_exeext' + { { case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_try") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; }; then + cross_compiling=no + else + if test "$cross_compiling" = maybe; then + cross_compiling=yes + else + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "cannot run C compiled programs. +If you meant to cross compile, use \`--host'. +See \`config.log' for more details" "$LINENO" 5; } + fi + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5 +$as_echo "$cross_compiling" >&6; } + +rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out +ac_clean_files=$ac_clean_files_save +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5 +$as_echo_n "checking for suffix of object files... " >&6; } +if ${ac_cv_objext+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.o conftest.obj +if { { ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_compile") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then : + for ac_file in conftest.o conftest.obj conftest.*; do + test -f "$ac_file" || continue; + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM ) ;; + *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'` + break;; + esac +done +else + $as_echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "cannot compute suffix of object files: cannot compile +See \`config.log' for more details" "$LINENO" 5; } +fi +rm -f conftest.$ac_cv_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5 +$as_echo "$ac_cv_objext" >&6; } +OBJEXT=$ac_cv_objext +ac_objext=$OBJEXT +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5 +$as_echo_n "checking whether we are using the GNU C compiler... " >&6; } +if ${ac_cv_c_compiler_gnu+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ +#ifndef __GNUC__ + choke me +#endif + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_compiler_gnu=yes +else + ac_compiler_gnu=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +ac_cv_c_compiler_gnu=$ac_compiler_gnu + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5 +$as_echo "$ac_cv_c_compiler_gnu" >&6; } +if test $ac_compiler_gnu = yes; then + GCC=yes +else + GCC= +fi +ac_test_CFLAGS=${CFLAGS+set} +ac_save_CFLAGS=$CFLAGS +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5 +$as_echo_n "checking whether $CC accepts -g... " >&6; } +if ${ac_cv_prog_cc_g+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_save_c_werror_flag=$ac_c_werror_flag + ac_c_werror_flag=yes + ac_cv_prog_cc_g=no + CFLAGS="-g" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_prog_cc_g=yes +else + CFLAGS="" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + +else + ac_c_werror_flag=$ac_save_c_werror_flag + CFLAGS="-g" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_prog_cc_g=yes +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + ac_c_werror_flag=$ac_save_c_werror_flag +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5 +$as_echo "$ac_cv_prog_cc_g" >&6; } +if test "$ac_test_CFLAGS" = set; then + CFLAGS=$ac_save_CFLAGS +elif test $ac_cv_prog_cc_g = yes; then + if test "$GCC" = yes; then + CFLAGS="-g -O2" + else + CFLAGS="-g" + fi +else + if test "$GCC" = yes; then + CFLAGS="-O2" + else + CFLAGS= + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5 +$as_echo_n "checking for $CC option to accept ISO C89... " >&6; } +if ${ac_cv_prog_cc_c89+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_cv_prog_cc_c89=no +ac_save_CC=$CC +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +#include +struct stat; +/* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */ +struct buf { int x; }; +FILE * (*rcsopen) (struct buf *, struct stat *, int); +static char *e (p, i) + char **p; + int i; +{ + return p[i]; +} +static char *f (char * (*g) (char **, int), char **p, ...) +{ + char *s; + va_list v; + va_start (v,p); + s = g (p, va_arg (v,int)); + va_end (v); + return s; +} + +/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has + function prototypes and stuff, but not '\xHH' hex character constants. + These don't provoke an error unfortunately, instead are silently treated + as 'x'. The following induces an error, until -std is added to get + proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an + array size at least. It's necessary to write '\x00'==0 to get something + that's true only with -std. */ +int osf4_cc_array ['\x00' == 0 ? 1 : -1]; + +/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters + inside strings and character constants. */ +#define FOO(x) 'x' +int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1]; + +int test (int i, double x); +struct s1 {int (*f) (int a);}; +struct s2 {int (*f) (double a);}; +int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int); +int argc; +char **argv; +int +main () +{ +return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]; + ; + return 0; +} +_ACEOF +for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \ + -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__" +do + CC="$ac_save_CC $ac_arg" + if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_prog_cc_c89=$ac_arg +fi +rm -f core conftest.err conftest.$ac_objext + test "x$ac_cv_prog_cc_c89" != "xno" && break +done +rm -f conftest.$ac_ext +CC=$ac_save_CC + +fi +# AC_CACHE_VAL +case "x$ac_cv_prog_cc_c89" in + x) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5 +$as_echo "none needed" >&6; } ;; + xno) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5 +$as_echo "unsupported" >&6; } ;; + *) + CC="$CC $ac_cv_prog_cc_c89" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5 +$as_echo "$ac_cv_prog_cc_c89" >&6; } ;; +esac +if test "x$ac_cv_prog_cc_c89" != xno; then : + +fi + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC understands -c and -o together" >&5 +$as_echo_n "checking whether $CC understands -c and -o together... " >&6; } +if ${am_cv_prog_cc_c_o+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF + # Make sure it works both with $CC and with simple cc. + # Following AC_PROG_CC_C_O, we do the test twice because some + # compilers refuse to overwrite an existing .o file with -o, + # though they will create one. + am_cv_prog_cc_c_o=yes + for am_i in 1 2; do + if { echo "$as_me:$LINENO: $CC -c conftest.$ac_ext -o conftest2.$ac_objext" >&5 + ($CC -c conftest.$ac_ext -o conftest2.$ac_objext) >&5 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } \ + && test -f conftest2.$ac_objext; then + : OK + else + am_cv_prog_cc_c_o=no + break + fi + done + rm -f core conftest* + unset am_i +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_prog_cc_c_o" >&5 +$as_echo "$am_cv_prog_cc_c_o" >&6; } +if test "$am_cv_prog_cc_c_o" != yes; then + # Losing compiler, so override with the script. + # FIXME: It is wrong to rewrite CC. + # But if we don't then we get into trouble of one sort or another. + # A longer-term fix would be to have automake use am__CC in this case, + # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)" + CC="$am_aux_dir/compile $CC" +fi +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5 +$as_echo_n "checking how to run the C preprocessor... " >&6; } +# On Suns, sometimes $CPP names a directory. +if test -n "$CPP" && test -d "$CPP"; then + CPP= +fi +if test -z "$CPP"; then + if ${ac_cv_prog_CPP+:} false; then : + $as_echo_n "(cached) " >&6 +else + # Double quotes because CPP needs to be expanded + for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp" + do + ac_preproc_ok=false +for ac_c_preproc_warn_flag in '' yes +do + # Use a header file that comes with gcc, so configuring glibc + # with a fresh cross-compiler works. + # Prefer to if __STDC__ is defined, since + # exists even on freestanding compilers. + # On the NeXT, cc -E runs the code through the compiler's parser, + # not just through cpp. "Syntax error" is here to catch this case. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#ifdef __STDC__ +# include +#else +# include +#endif + Syntax error +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + +else + # Broken: fails on valid input. +continue +fi +rm -f conftest.err conftest.i conftest.$ac_ext + + # OK, works on sane cases. Now check whether nonexistent headers + # can be detected and how. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + # Broken: success on invalid input. +continue +else + # Passes both tests. +ac_preproc_ok=: +break +fi +rm -f conftest.err conftest.i conftest.$ac_ext + +done +# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. +rm -f conftest.i conftest.err conftest.$ac_ext +if $ac_preproc_ok; then : + break +fi + + done + ac_cv_prog_CPP=$CPP + +fi + CPP=$ac_cv_prog_CPP +else + ac_cv_prog_CPP=$CPP +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5 +$as_echo "$CPP" >&6; } +ac_preproc_ok=false +for ac_c_preproc_warn_flag in '' yes +do + # Use a header file that comes with gcc, so configuring glibc + # with a fresh cross-compiler works. + # Prefer to if __STDC__ is defined, since + # exists even on freestanding compilers. + # On the NeXT, cc -E runs the code through the compiler's parser, + # not just through cpp. "Syntax error" is here to catch this case. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#ifdef __STDC__ +# include +#else +# include +#endif + Syntax error +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + +else + # Broken: fails on valid input. +continue +fi +rm -f conftest.err conftest.i conftest.$ac_ext + + # OK, works on sane cases. Now check whether nonexistent headers + # can be detected and how. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + # Broken: success on invalid input. +continue +else + # Passes both tests. +ac_preproc_ok=: +break +fi +rm -f conftest.err conftest.i conftest.$ac_ext + +done +# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. +rm -f conftest.i conftest.err conftest.$ac_ext +if $ac_preproc_ok; then : + +else + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "C preprocessor \"$CPP\" fails sanity check +See \`config.log' for more details" "$LINENO" 5; } +fi + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5 +$as_echo_n "checking for grep that handles long lines and -e... " >&6; } +if ${ac_cv_path_GREP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -z "$GREP"; then + ac_path_GREP_found=false + # Loop through the user's path and test for each of PROGNAME-LIST + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in grep ggrep; do + for ac_exec_ext in '' $ac_executable_extensions; do + ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext" + as_fn_executable_p "$ac_path_GREP" || continue +# Check for GNU ac_path_GREP and select it if it is found. + # Check for GNU $ac_path_GREP +case `"$ac_path_GREP" --version 2>&1` in +*GNU*) + ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;; +*) + ac_count=0 + $as_echo_n 0123456789 >"conftest.in" + while : + do + cat "conftest.in" "conftest.in" >"conftest.tmp" + mv "conftest.tmp" "conftest.in" + cp "conftest.in" "conftest.nl" + $as_echo 'GREP' >> "conftest.nl" + "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break + diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break + as_fn_arith $ac_count + 1 && ac_count=$as_val + if test $ac_count -gt ${ac_path_GREP_max-0}; then + # Best one so far, save it but keep looking for a better one + ac_cv_path_GREP="$ac_path_GREP" + ac_path_GREP_max=$ac_count + fi + # 10*(2^10) chars as input seems more than enough + test $ac_count -gt 10 && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out;; +esac + + $ac_path_GREP_found && break 3 + done + done + done +IFS=$as_save_IFS + if test -z "$ac_cv_path_GREP"; then + as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5 + fi +else + ac_cv_path_GREP=$GREP +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5 +$as_echo "$ac_cv_path_GREP" >&6; } + GREP="$ac_cv_path_GREP" + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5 +$as_echo_n "checking for egrep... " >&6; } +if ${ac_cv_path_EGREP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if echo a | $GREP -E '(a|b)' >/dev/null 2>&1 + then ac_cv_path_EGREP="$GREP -E" + else + if test -z "$EGREP"; then + ac_path_EGREP_found=false + # Loop through the user's path and test for each of PROGNAME-LIST + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in egrep; do + for ac_exec_ext in '' $ac_executable_extensions; do + ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext" + as_fn_executable_p "$ac_path_EGREP" || continue +# Check for GNU ac_path_EGREP and select it if it is found. + # Check for GNU $ac_path_EGREP +case `"$ac_path_EGREP" --version 2>&1` in +*GNU*) + ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;; +*) + ac_count=0 + $as_echo_n 0123456789 >"conftest.in" + while : + do + cat "conftest.in" "conftest.in" >"conftest.tmp" + mv "conftest.tmp" "conftest.in" + cp "conftest.in" "conftest.nl" + $as_echo 'EGREP' >> "conftest.nl" + "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break + diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break + as_fn_arith $ac_count + 1 && ac_count=$as_val + if test $ac_count -gt ${ac_path_EGREP_max-0}; then + # Best one so far, save it but keep looking for a better one + ac_cv_path_EGREP="$ac_path_EGREP" + ac_path_EGREP_max=$ac_count + fi + # 10*(2^10) chars as input seems more than enough + test $ac_count -gt 10 && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out;; +esac + + $ac_path_EGREP_found && break 3 + done + done + done +IFS=$as_save_IFS + if test -z "$ac_cv_path_EGREP"; then + as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5 + fi +else + ac_cv_path_EGREP=$EGREP +fi + + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5 +$as_echo "$ac_cv_path_EGREP" >&6; } + EGREP="$ac_cv_path_EGREP" + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5 +$as_echo_n "checking for ANSI C header files... " >&6; } +if ${ac_cv_header_stdc+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +#include +#include +#include + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_header_stdc=yes +else + ac_cv_header_stdc=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + +if test $ac_cv_header_stdc = yes; then + # SunOS 4.x string.h does not declare mem*, contrary to ANSI. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "memchr" >/dev/null 2>&1; then : + +else + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "free" >/dev/null 2>&1; then : + +else + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi. + if test "$cross_compiling" = yes; then : + : +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +#include +#if ((' ' & 0x0FF) == 0x020) +# define ISLOWER(c) ('a' <= (c) && (c) <= 'z') +# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c)) +#else +# define ISLOWER(c) \ + (('a' <= (c) && (c) <= 'i') \ + || ('j' <= (c) && (c) <= 'r') \ + || ('s' <= (c) && (c) <= 'z')) +# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c)) +#endif + +#define XOR(e, f) (((e) && !(f)) || (!(e) && (f))) +int +main () +{ + int i; + for (i = 0; i < 256; i++) + if (XOR (islower (i), ISLOWER (i)) + || toupper (i) != TOUPPER (i)) + return 2; + return 0; +} +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + +else + ac_cv_header_stdc=no +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext +fi + +fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5 +$as_echo "$ac_cv_header_stdc" >&6; } +if test $ac_cv_header_stdc = yes; then + +$as_echo "#define STDC_HEADERS 1" >>confdefs.h + +fi + +# On IRIX 5.3, sys/types and inttypes.h are conflicting. +for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \ + inttypes.h stdint.h unistd.h +do : + as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` +ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default +" +if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +fi + +done + + + + ac_fn_c_check_header_mongrel "$LINENO" "minix/config.h" "ac_cv_header_minix_config_h" "$ac_includes_default" +if test "x$ac_cv_header_minix_config_h" = xyes; then : + MINIX=yes +else + MINIX= +fi + + + if test "$MINIX" = yes; then + +$as_echo "#define _POSIX_SOURCE 1" >>confdefs.h + + +$as_echo "#define _POSIX_1_SOURCE 2" >>confdefs.h + + +$as_echo "#define _MINIX 1" >>confdefs.h + + fi + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether it is safe to define __EXTENSIONS__" >&5 +$as_echo_n "checking whether it is safe to define __EXTENSIONS__... " >&6; } +if ${ac_cv_safe_to_define___extensions__+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +# define __EXTENSIONS__ 1 + $ac_includes_default +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_safe_to_define___extensions__=yes +else + ac_cv_safe_to_define___extensions__=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_safe_to_define___extensions__" >&5 +$as_echo "$ac_cv_safe_to_define___extensions__" >&6; } + test $ac_cv_safe_to_define___extensions__ = yes && + $as_echo "#define __EXTENSIONS__ 1" >>confdefs.h + + $as_echo "#define _ALL_SOURCE 1" >>confdefs.h + + $as_echo "#define _GNU_SOURCE 1" >>confdefs.h + + $as_echo "#define _POSIX_PTHREAD_SEMANTICS 1" >>confdefs.h + + $as_echo "#define _TANDEM_SOURCE 1" >>confdefs.h + + +# Check whether --enable-largefile was given. +if test "${enable_largefile+set}" = set; then : + enableval=$enable_largefile; +fi + +if test "$enable_largefile" != no; then + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for special C compiler options needed for large files" >&5 +$as_echo_n "checking for special C compiler options needed for large files... " >&6; } +if ${ac_cv_sys_largefile_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_cv_sys_largefile_CC=no + if test "$GCC" != yes; then + ac_save_CC=$CC + while :; do + # IRIX 6.2 and later do not support large files by default, + # so use the C compiler's -n32 option if that helps. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + /* Check that off_t can represent 2**63 - 1 correctly. + We can't simply define LARGE_OFF_T to be 9223372036854775807, + since some C++ compilers masquerading as C compilers + incorrectly reject 9223372036854775807. */ +#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) + int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 + && LARGE_OFF_T % 2147483647 == 1) + ? 1 : -1]; +int +main () +{ + + ; + return 0; +} +_ACEOF + if ac_fn_c_try_compile "$LINENO"; then : + break +fi +rm -f core conftest.err conftest.$ac_objext + CC="$CC -n32" + if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_sys_largefile_CC=' -n32'; break +fi +rm -f core conftest.err conftest.$ac_objext + break + done + CC=$ac_save_CC + rm -f conftest.$ac_ext + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_largefile_CC" >&5 +$as_echo "$ac_cv_sys_largefile_CC" >&6; } + if test "$ac_cv_sys_largefile_CC" != no; then + CC=$CC$ac_cv_sys_largefile_CC + fi + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _FILE_OFFSET_BITS value needed for large files" >&5 +$as_echo_n "checking for _FILE_OFFSET_BITS value needed for large files... " >&6; } +if ${ac_cv_sys_file_offset_bits+:} false; then : + $as_echo_n "(cached) " >&6 +else + while :; do + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + /* Check that off_t can represent 2**63 - 1 correctly. + We can't simply define LARGE_OFF_T to be 9223372036854775807, + since some C++ compilers masquerading as C compilers + incorrectly reject 9223372036854775807. */ +#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) + int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 + && LARGE_OFF_T % 2147483647 == 1) + ? 1 : -1]; +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_sys_file_offset_bits=no; break +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#define _FILE_OFFSET_BITS 64 +#include + /* Check that off_t can represent 2**63 - 1 correctly. + We can't simply define LARGE_OFF_T to be 9223372036854775807, + since some C++ compilers masquerading as C compilers + incorrectly reject 9223372036854775807. */ +#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) + int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 + && LARGE_OFF_T % 2147483647 == 1) + ? 1 : -1]; +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_sys_file_offset_bits=64; break +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + ac_cv_sys_file_offset_bits=unknown + break +done +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_file_offset_bits" >&5 +$as_echo "$ac_cv_sys_file_offset_bits" >&6; } +case $ac_cv_sys_file_offset_bits in #( + no | unknown) ;; + *) +cat >>confdefs.h <<_ACEOF +#define _FILE_OFFSET_BITS $ac_cv_sys_file_offset_bits +_ACEOF +;; +esac +rm -rf conftest* + if test $ac_cv_sys_file_offset_bits = unknown; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _LARGE_FILES value needed for large files" >&5 +$as_echo_n "checking for _LARGE_FILES value needed for large files... " >&6; } +if ${ac_cv_sys_large_files+:} false; then : + $as_echo_n "(cached) " >&6 +else + while :; do + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + /* Check that off_t can represent 2**63 - 1 correctly. + We can't simply define LARGE_OFF_T to be 9223372036854775807, + since some C++ compilers masquerading as C compilers + incorrectly reject 9223372036854775807. */ +#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) + int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 + && LARGE_OFF_T % 2147483647 == 1) + ? 1 : -1]; +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_sys_large_files=no; break +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#define _LARGE_FILES 1 +#include + /* Check that off_t can represent 2**63 - 1 correctly. + We can't simply define LARGE_OFF_T to be 9223372036854775807, + since some C++ compilers masquerading as C compilers + incorrectly reject 9223372036854775807. */ +#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) + int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 + && LARGE_OFF_T % 2147483647 == 1) + ? 1 : -1]; +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_sys_large_files=1; break +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + ac_cv_sys_large_files=unknown + break +done +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_large_files" >&5 +$as_echo "$ac_cv_sys_large_files" >&6; } +case $ac_cv_sys_large_files in #( + no | unknown) ;; + *) +cat >>confdefs.h <<_ACEOF +#define _LARGE_FILES $ac_cv_sys_large_files +_ACEOF +;; +esac +rm -rf conftest* + fi + + +fi + + +am__api_version='1.16' + +# Find a good install program. We prefer a C program (faster), +# so one script is as good as another. But avoid the broken or +# incompatible versions: +# SysV /etc/install, /usr/sbin/install +# SunOS /usr/etc/install +# IRIX /sbin/install +# AIX /bin/install +# AmigaOS /C/install, which installs bootblocks on floppy discs +# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag +# AFS /usr/afsws/bin/install, which mishandles nonexistent args +# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff" +# OS/2's system install, which has a completely different semantic +# ./install, which can be erroneously created by make from ./install.sh. +# Reject install programs that cannot install multiple files. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5 +$as_echo_n "checking for a BSD-compatible install... " >&6; } +if test -z "$INSTALL"; then +if ${ac_cv_path_install+:} false; then : + $as_echo_n "(cached) " >&6 +else + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + # Account for people who put trailing slashes in PATH elements. +case $as_dir/ in #(( + ./ | .// | /[cC]/* | \ + /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \ + ?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \ + /usr/ucb/* ) ;; + *) + # OSF1 and SCO ODT 3.0 have their own names for install. + # Don't use installbsd from OSF since it installs stuff as root + # by default. + for ac_prog in ginstall scoinst install; do + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then + if test $ac_prog = install && + grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then + # AIX install. It has an incompatible calling convention. + : + elif test $ac_prog = install && + grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then + # program-specific install script used by HP pwplus--don't use. + : + else + rm -rf conftest.one conftest.two conftest.dir + echo one > conftest.one + echo two > conftest.two + mkdir conftest.dir + if "$as_dir/$ac_prog$ac_exec_ext" -c conftest.one conftest.two "`pwd`/conftest.dir" && + test -s conftest.one && test -s conftest.two && + test -s conftest.dir/conftest.one && + test -s conftest.dir/conftest.two + then + ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c" + break 3 + fi + fi + fi + done + done + ;; +esac + + done +IFS=$as_save_IFS + +rm -rf conftest.one conftest.two conftest.dir + +fi + if test "${ac_cv_path_install+set}" = set; then + INSTALL=$ac_cv_path_install + else + # As a last resort, use the slow shell script. Don't cache a + # value for INSTALL within a source directory, because that will + # break other packages using the cache if that directory is + # removed, or if the value is a relative name. + INSTALL=$ac_install_sh + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5 +$as_echo "$INSTALL" >&6; } + +# Use test -z because SunOS4 sh mishandles braces in ${var-val}. +# It thinks the first close brace ends the variable substitution. +test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}' + +test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}' + +test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644' + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether build environment is sane" >&5 +$as_echo_n "checking whether build environment is sane... " >&6; } +# Reject unsafe characters in $srcdir or the absolute working directory +# name. Accept space and tab only in the latter. +am_lf=' +' +case `pwd` in + *[\\\"\#\$\&\'\`$am_lf]*) + as_fn_error $? "unsafe absolute working directory name" "$LINENO" 5;; +esac +case $srcdir in + *[\\\"\#\$\&\'\`$am_lf\ \ ]*) + as_fn_error $? "unsafe srcdir value: '$srcdir'" "$LINENO" 5;; +esac + +# Do 'set' in a subshell so we don't clobber the current shell's +# arguments. Must try -L first in case configure is actually a +# symlink; some systems play weird games with the mod time of symlinks +# (eg FreeBSD returns the mod time of the symlink's containing +# directory). +if ( + am_has_slept=no + for am_try in 1 2; do + echo "timestamp, slept: $am_has_slept" > conftest.file + set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null` + if test "$*" = "X"; then + # -L didn't work. + set X `ls -t "$srcdir/configure" conftest.file` + fi + if test "$*" != "X $srcdir/configure conftest.file" \ + && test "$*" != "X conftest.file $srcdir/configure"; then + + # If neither matched, then we have a broken ls. This can happen + # if, for instance, CONFIG_SHELL is bash and it inherits a + # broken ls alias from the environment. This has actually + # happened. Such a system could not be considered "sane". + as_fn_error $? "ls -t appears to fail. Make sure there is not a broken + alias in your environment" "$LINENO" 5 + fi + if test "$2" = conftest.file || test $am_try -eq 2; then + break + fi + # Just in case. + sleep 1 + am_has_slept=yes + done + test "$2" = conftest.file + ) +then + # Ok. + : +else + as_fn_error $? "newly created file is older than distributed files! +Check your system clock" "$LINENO" 5 +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +# If we didn't sleep, we still need to ensure time stamps of config.status and +# generated files are strictly newer. +am_sleep_pid= +if grep 'slept: no' conftest.file >/dev/null 2>&1; then + ( sleep 1 ) & + am_sleep_pid=$! +fi + +rm -f conftest.file + +test "$program_prefix" != NONE && + program_transform_name="s&^&$program_prefix&;$program_transform_name" +# Use a double $ so make ignores it. +test "$program_suffix" != NONE && + program_transform_name="s&\$&$program_suffix&;$program_transform_name" +# Double any \ or $. +# By default was `s,x,x', remove it if useless. +ac_script='s/[\\$]/&&/g;s/;s,x,x,$//' +program_transform_name=`$as_echo "$program_transform_name" | sed "$ac_script"` + +if test x"${MISSING+set}" != xset; then + case $am_aux_dir in + *\ * | *\ *) + MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;; + *) + MISSING="\${SHELL} $am_aux_dir/missing" ;; + esac +fi +# Use eval to expand $SHELL +if eval "$MISSING --is-lightweight"; then + am_missing_run="$MISSING " +else + am_missing_run= + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: 'missing' script is too old or missing" >&5 +$as_echo "$as_me: WARNING: 'missing' script is too old or missing" >&2;} +fi + +if test x"${install_sh+set}" != xset; then + case $am_aux_dir in + *\ * | *\ *) + install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;; + *) + install_sh="\${SHELL} $am_aux_dir/install-sh" + esac +fi + +# Installed binaries are usually stripped using 'strip' when the user +# run "make install-strip". However 'strip' might not be the right +# tool to use in cross-compilation environments, therefore Automake +# will honor the 'STRIP' environment variable to overrule this program. +if test "$cross_compiling" != no; then + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args. +set dummy ${ac_tool_prefix}strip; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_STRIP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$STRIP"; then + ac_cv_prog_STRIP="$STRIP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_STRIP="${ac_tool_prefix}strip" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +STRIP=$ac_cv_prog_STRIP +if test -n "$STRIP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5 +$as_echo "$STRIP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_STRIP"; then + ac_ct_STRIP=$STRIP + # Extract the first word of "strip", so it can be a program name with args. +set dummy strip; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_STRIP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_STRIP"; then + ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_STRIP="strip" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP +if test -n "$ac_ct_STRIP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5 +$as_echo "$ac_ct_STRIP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_STRIP" = x; then + STRIP=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + STRIP=$ac_ct_STRIP + fi +else + STRIP="$ac_cv_prog_STRIP" +fi + +fi +INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s" + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a thread-safe mkdir -p" >&5 +$as_echo_n "checking for a thread-safe mkdir -p... " >&6; } +if test -z "$MKDIR_P"; then + if ${ac_cv_path_mkdir+:} false; then : + $as_echo_n "(cached) " >&6 +else + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH$PATH_SEPARATOR/opt/sfw/bin +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in mkdir gmkdir; do + for ac_exec_ext in '' $ac_executable_extensions; do + as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext" || continue + case `"$as_dir/$ac_prog$ac_exec_ext" --version 2>&1` in #( + 'mkdir (GNU coreutils) '* | \ + 'mkdir (coreutils) '* | \ + 'mkdir (fileutils) '4.1*) + ac_cv_path_mkdir=$as_dir/$ac_prog$ac_exec_ext + break 3;; + esac + done + done + done +IFS=$as_save_IFS + +fi + + test -d ./--version && rmdir ./--version + if test "${ac_cv_path_mkdir+set}" = set; then + MKDIR_P="$ac_cv_path_mkdir -p" + else + # As a last resort, use the slow shell script. Don't cache a + # value for MKDIR_P within a source directory, because that will + # break other packages using the cache if that directory is + # removed, or if the value is a relative name. + MKDIR_P="$ac_install_sh -d" + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $MKDIR_P" >&5 +$as_echo "$MKDIR_P" >&6; } + +for ac_prog in gawk mawk nawk awk +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_AWK+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$AWK"; then + ac_cv_prog_AWK="$AWK" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_AWK="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +AWK=$ac_cv_prog_AWK +if test -n "$AWK"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5 +$as_echo "$AWK" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$AWK" && break +done + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} sets \$(MAKE)" >&5 +$as_echo_n "checking whether ${MAKE-make} sets \$(MAKE)... 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" >&6; } +if ${ac_cv_path_SED+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/ + for ac_i in 1 2 3 4 5 6 7; do + ac_script="$ac_script$as_nl$ac_script" + done + echo "$ac_script" 2>/dev/null | sed 99q >conftest.sed + { ac_script=; unset ac_script;} + if test -z "$SED"; then + ac_path_SED_found=false + # Loop through the user's path and test for each of PROGNAME-LIST + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in sed gsed; do + for ac_exec_ext in '' $ac_executable_extensions; do + ac_path_SED="$as_dir/$ac_prog$ac_exec_ext" + as_fn_executable_p "$ac_path_SED" || continue +# Check for GNU ac_path_SED and select it if it is found. + # Check for GNU $ac_path_SED +case `"$ac_path_SED" --version 2>&1` in +*GNU*) + ac_cv_path_SED="$ac_path_SED" ac_path_SED_found=:;; +*) + ac_count=0 + $as_echo_n 0123456789 >"conftest.in" + while : + do + cat "conftest.in" "conftest.in" >"conftest.tmp" + mv "conftest.tmp" "conftest.in" + cp "conftest.in" "conftest.nl" + $as_echo '' >> "conftest.nl" + "$ac_path_SED" -f conftest.sed < "conftest.nl" >"conftest.out" 2>/dev/null || break + diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break + as_fn_arith $ac_count + 1 && ac_count=$as_val + if test $ac_count -gt ${ac_path_SED_max-0}; then + # Best one so far, save it but keep looking for a better one + ac_cv_path_SED="$ac_path_SED" + ac_path_SED_max=$ac_count + fi + # 10*(2^10) chars as input seems more than enough + test $ac_count -gt 10 && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out;; +esac + + $ac_path_SED_found && break 3 + done + done + done +IFS=$as_save_IFS + if test -z "$ac_cv_path_SED"; then + as_fn_error $? "no acceptable sed could be found in \$PATH" "$LINENO" 5 + fi +else + ac_cv_path_SED=$SED +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5 +$as_echo "$ac_cv_path_SED" >&6; } + SED="$ac_cv_path_SED" + rm -f conftest.sed + +test -z "$SED" && SED=sed +Xsed="$SED -e 1s/^X//" + + + + + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for fgrep" >&5 +$as_echo_n "checking for fgrep... " >&6; } +if ${ac_cv_path_FGREP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if echo 'ab*c' | $GREP -F 'ab*c' >/dev/null 2>&1 + then ac_cv_path_FGREP="$GREP -F" + else + if test -z "$FGREP"; then + ac_path_FGREP_found=false + # Loop through the user's path and test for each of PROGNAME-LIST + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in fgrep; do + for ac_exec_ext in '' $ac_executable_extensions; do + ac_path_FGREP="$as_dir/$ac_prog$ac_exec_ext" + as_fn_executable_p "$ac_path_FGREP" || continue +# Check for GNU ac_path_FGREP and select it if it is found. + # Check for GNU $ac_path_FGREP +case `"$ac_path_FGREP" --version 2>&1` in +*GNU*) + ac_cv_path_FGREP="$ac_path_FGREP" ac_path_FGREP_found=:;; +*) + ac_count=0 + $as_echo_n 0123456789 >"conftest.in" + while : + do + cat "conftest.in" "conftest.in" >"conftest.tmp" + mv "conftest.tmp" "conftest.in" + cp "conftest.in" "conftest.nl" + $as_echo 'FGREP' >> "conftest.nl" + "$ac_path_FGREP" FGREP < "conftest.nl" >"conftest.out" 2>/dev/null || break + diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break + as_fn_arith $ac_count + 1 && ac_count=$as_val + if test $ac_count -gt ${ac_path_FGREP_max-0}; then + # Best one so far, save it but keep looking for a better one + ac_cv_path_FGREP="$ac_path_FGREP" + ac_path_FGREP_max=$ac_count + fi + # 10*(2^10) chars as input seems more than enough + test $ac_count -gt 10 && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out;; +esac + + $ac_path_FGREP_found && break 3 + done + done + done +IFS=$as_save_IFS + if test -z "$ac_cv_path_FGREP"; then + as_fn_error $? "no acceptable fgrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5 + fi +else + ac_cv_path_FGREP=$FGREP +fi + + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_FGREP" >&5 +$as_echo "$ac_cv_path_FGREP" >&6; } + FGREP="$ac_cv_path_FGREP" + + +test -z "$GREP" && GREP=grep + + + + + + + + + + + + + + + + + + + +# Check whether --with-gnu-ld was given. +if test "${with_gnu_ld+set}" = set; then : + withval=$with_gnu_ld; test no = "$withval" || with_gnu_ld=yes +else + with_gnu_ld=no +fi + +ac_prog=ld +if test yes = "$GCC"; then + # Check if gcc -print-prog-name=ld gives a path. + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5 +$as_echo_n "checking for ld used by $CC... " >&6; } + case $host in + *-*-mingw*) + # gcc leaves a trailing carriage return, which upsets mingw + ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;; + *) + ac_prog=`($CC -print-prog-name=ld) 2>&5` ;; + esac + case $ac_prog in + # Accept absolute paths. + [\\/]* | ?:[\\/]*) + re_direlt='/[^/][^/]*/\.\./' + # Canonicalize the pathname of ld + ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'` + while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do + ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"` + done + test -z "$LD" && LD=$ac_prog + ;; + "") + # If it fails, then pretend we aren't using GCC. + ac_prog=ld + ;; + *) + # If it is relative, then search for the first ld in PATH. + with_gnu_ld=unknown + ;; + esac +elif test yes = "$with_gnu_ld"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5 +$as_echo_n "checking for GNU ld... " >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5 +$as_echo_n "checking for non-GNU ld... " >&6; } +fi +if ${lt_cv_path_LD+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -z "$LD"; then + lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR + for ac_dir in $PATH; do + IFS=$lt_save_ifs + test -z "$ac_dir" && ac_dir=. + if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then + lt_cv_path_LD=$ac_dir/$ac_prog + # Check to see if the program is GNU ld. I'd rather use --version, + # but apparently some variants of GNU ld only accept -v. + # Break only if it was the GNU/non-GNU ld that we prefer. + case `"$lt_cv_path_LD" -v 2>&1 &5 +$as_echo "$LD" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi +test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5 +$as_echo_n "checking if the linker ($LD) is GNU ld... " >&6; } +if ${lt_cv_prog_gnu_ld+:} false; then : + $as_echo_n "(cached) " >&6 +else + # I'd rather use --version here, but apparently some GNU lds only accept -v. +case `$LD -v 2>&1 &5 +$as_echo "$lt_cv_prog_gnu_ld" >&6; } +with_gnu_ld=$lt_cv_prog_gnu_ld + + + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for BSD- or MS-compatible name lister (nm)" >&5 +$as_echo_n "checking for BSD- or MS-compatible name lister (nm)... " >&6; } +if ${lt_cv_path_NM+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$NM"; then + # Let the user override the test. + lt_cv_path_NM=$NM +else + lt_nm_to_check=${ac_tool_prefix}nm + if test -n "$ac_tool_prefix" && test "$build" = "$host"; then + lt_nm_to_check="$lt_nm_to_check nm" + fi + for lt_tmp_nm in $lt_nm_to_check; do + lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR + for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do + IFS=$lt_save_ifs + test -z "$ac_dir" && ac_dir=. + tmp_nm=$ac_dir/$lt_tmp_nm + if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext"; then + # Check to see if the nm accepts a BSD-compat flag. + # Adding the 'sed 1q' prevents false positives on HP-UX, which says: + # nm: unknown option "B" ignored + # Tru64's nm complains that /dev/null is an invalid object file + # MSYS converts /dev/null to NUL, MinGW nm treats NUL as empty + case $build_os in + mingw*) lt_bad_file=conftest.nm/nofile ;; + *) lt_bad_file=/dev/null ;; + esac + case `"$tmp_nm" -B $lt_bad_file 2>&1 | sed '1q'` in + *$lt_bad_file* | *'Invalid file or object type'*) + lt_cv_path_NM="$tmp_nm -B" + break 2 + ;; + *) + case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in + */dev/null*) + lt_cv_path_NM="$tmp_nm -p" + break 2 + ;; + *) + lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but + continue # so that we can try to find one that supports BSD flags + ;; + esac + ;; + esac + fi + done + IFS=$lt_save_ifs + done + : ${lt_cv_path_NM=no} +fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_NM" >&5 +$as_echo "$lt_cv_path_NM" >&6; } +if test no != "$lt_cv_path_NM"; then + NM=$lt_cv_path_NM +else + # Didn't find any BSD compatible name lister, look for dumpbin. + if test -n "$DUMPBIN"; then : + # Let the user override the test. + else + if test -n "$ac_tool_prefix"; then + for ac_prog in dumpbin "link -dump" + do + # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. +set dummy $ac_tool_prefix$ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_DUMPBIN+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$DUMPBIN"; then + ac_cv_prog_DUMPBIN="$DUMPBIN" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_DUMPBIN="$ac_tool_prefix$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +DUMPBIN=$ac_cv_prog_DUMPBIN +if test -n "$DUMPBIN"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DUMPBIN" >&5 +$as_echo "$DUMPBIN" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$DUMPBIN" && break + done +fi +if test -z "$DUMPBIN"; then + ac_ct_DUMPBIN=$DUMPBIN + for ac_prog in dumpbin "link -dump" +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_DUMPBIN+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_DUMPBIN"; then + ac_cv_prog_ac_ct_DUMPBIN="$ac_ct_DUMPBIN" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_DUMPBIN="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_DUMPBIN=$ac_cv_prog_ac_ct_DUMPBIN +if test -n "$ac_ct_DUMPBIN"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DUMPBIN" >&5 +$as_echo "$ac_ct_DUMPBIN" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$ac_ct_DUMPBIN" && break +done + + if test "x$ac_ct_DUMPBIN" = x; then + DUMPBIN=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + DUMPBIN=$ac_ct_DUMPBIN + fi +fi + + case `$DUMPBIN -symbols -headers /dev/null 2>&1 | sed '1q'` in + *COFF*) + DUMPBIN="$DUMPBIN -symbols -headers" + ;; + *) + DUMPBIN=: + ;; + esac + fi + + if test : != "$DUMPBIN"; then + NM=$DUMPBIN + fi +fi +test -z "$NM" && NM=nm + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the name lister ($NM) interface" >&5 +$as_echo_n "checking the name lister ($NM) interface... " >&6; } +if ${lt_cv_nm_interface+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_nm_interface="BSD nm" + echo "int some_variable = 0;" > conftest.$ac_ext + (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&5) + (eval "$ac_compile" 2>conftest.err) + cat conftest.err >&5 + (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&5) + (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out) + cat conftest.err >&5 + (eval echo "\"\$as_me:$LINENO: output\"" >&5) + cat conftest.out >&5 + if $GREP 'External.*some_variable' conftest.out > /dev/null; then + lt_cv_nm_interface="MS dumpbin" + fi + rm -f conftest* +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_nm_interface" >&5 +$as_echo "$lt_cv_nm_interface" >&6; } + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ln -s works" >&5 +$as_echo_n "checking whether ln -s works... " >&6; } +LN_S=$as_ln_s +if test "$LN_S" = "ln -s"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no, using $LN_S" >&5 +$as_echo "no, using $LN_S" >&6; } +fi + +# find the maximum length of command line arguments +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the maximum length of command line arguments" >&5 +$as_echo_n "checking the maximum length of command line arguments... " >&6; } +if ${lt_cv_sys_max_cmd_len+:} false; then : + $as_echo_n "(cached) " >&6 +else + i=0 + teststring=ABCD + + case $build_os in + msdosdjgpp*) + # On DJGPP, this test can blow up pretty badly due to problems in libc + # (any single argument exceeding 2000 bytes causes a buffer overrun + # during glob expansion). Even if it were fixed, the result of this + # check would be larger than it should be. + lt_cv_sys_max_cmd_len=12288; # 12K is about right + ;; + + gnu*) + # Under GNU Hurd, this test is not required because there is + # no limit to the length of command line arguments. + # Libtool will interpret -1 as no limit whatsoever + lt_cv_sys_max_cmd_len=-1; + ;; + + cygwin* | mingw* | cegcc*) + # On Win9x/ME, this test blows up -- it succeeds, but takes + # about 5 minutes as the teststring grows exponentially. + # Worse, since 9x/ME are not pre-emptively multitasking, + # you end up with a "frozen" computer, even though with patience + # the test eventually succeeds (with a max line length of 256k). + # Instead, let's just punt: use the minimum linelength reported by + # all of the supported platforms: 8192 (on NT/2K/XP). + lt_cv_sys_max_cmd_len=8192; + ;; + + mint*) + # On MiNT this can take a long time and run out of memory. + lt_cv_sys_max_cmd_len=8192; + ;; + + amigaos*) + # On AmigaOS with pdksh, this test takes hours, literally. + # So we just punt and use a minimum line length of 8192. + lt_cv_sys_max_cmd_len=8192; + ;; + + bitrig* | darwin* | dragonfly* | freebsd* | netbsd* | openbsd*) + # This has been around since 386BSD, at least. Likely further. + if test -x /sbin/sysctl; then + lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax` + elif test -x /usr/sbin/sysctl; then + lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax` + else + lt_cv_sys_max_cmd_len=65536 # usable default for all BSDs + fi + # And add a safety zone + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` + ;; + + interix*) + # We know the value 262144 and hardcode it with a safety zone (like BSD) + lt_cv_sys_max_cmd_len=196608 + ;; + + os2*) + # The test takes a long time on OS/2. + lt_cv_sys_max_cmd_len=8192 + ;; + + osf*) + # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure + # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not + # nice to cause kernel panics so lets avoid the loop below. + # First set a reasonable default. + lt_cv_sys_max_cmd_len=16384 + # + if test -x /sbin/sysconfig; then + case `/sbin/sysconfig -q proc exec_disable_arg_limit` in + *1*) lt_cv_sys_max_cmd_len=-1 ;; + esac + fi + ;; + sco3.2v5*) + lt_cv_sys_max_cmd_len=102400 + ;; + sysv5* | sco5v6* | sysv4.2uw2*) + kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null` + if test -n "$kargmax"; then + lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[ ]//'` + else + lt_cv_sys_max_cmd_len=32768 + fi + ;; + *) + lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null` + if test -n "$lt_cv_sys_max_cmd_len" && \ + test undefined != "$lt_cv_sys_max_cmd_len"; then + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` + else + # Make teststring a little bigger before we do anything with it. + # a 1K string should be a reasonable start. + for i in 1 2 3 4 5 6 7 8; do + teststring=$teststring$teststring + done + SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}} + # If test is not a shell built-in, we'll probably end up computing a + # maximum length that is only half of the actual maximum length, but + # we can't tell. + while { test X`env echo "$teststring$teststring" 2>/dev/null` \ + = "X$teststring$teststring"; } >/dev/null 2>&1 && + test 17 != "$i" # 1/2 MB should be enough + do + i=`expr $i + 1` + teststring=$teststring$teststring + done + # Only check the string length outside the loop. + lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1` + teststring= + # Add a significant safety factor because C++ compilers can tack on + # massive amounts of additional arguments before passing them to the + # linker. It appears as though 1/2 is a usable value. + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2` + fi + ;; + esac + +fi + +if test -n "$lt_cv_sys_max_cmd_len"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sys_max_cmd_len" >&5 +$as_echo "$lt_cv_sys_max_cmd_len" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: none" >&5 +$as_echo "none" >&6; } +fi +max_cmd_len=$lt_cv_sys_max_cmd_len + + + + + + +: ${CP="cp -f"} +: ${MV="mv -f"} +: ${RM="rm -f"} + +if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then + lt_unset=unset +else + lt_unset=false +fi + + + + + +# test EBCDIC or ASCII +case `echo X|tr X '\101'` in + A) # ASCII based system + # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr + lt_SP2NL='tr \040 \012' + lt_NL2SP='tr \015\012 \040\040' + ;; + *) # EBCDIC based system + lt_SP2NL='tr \100 \n' + lt_NL2SP='tr \r\n \100\100' + ;; +esac + + + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to $host format" >&5 +$as_echo_n "checking how to convert $build file names to $host format... " >&6; } +if ${lt_cv_to_host_file_cmd+:} false; then : + $as_echo_n "(cached) " >&6 +else + case $host in + *-*-mingw* ) + case $build in + *-*-mingw* ) # actually msys + lt_cv_to_host_file_cmd=func_convert_file_msys_to_w32 + ;; + *-*-cygwin* ) + lt_cv_to_host_file_cmd=func_convert_file_cygwin_to_w32 + ;; + * ) # otherwise, assume *nix + lt_cv_to_host_file_cmd=func_convert_file_nix_to_w32 + ;; + esac + ;; + *-*-cygwin* ) + case $build in + *-*-mingw* ) # actually msys + lt_cv_to_host_file_cmd=func_convert_file_msys_to_cygwin + ;; + *-*-cygwin* ) + lt_cv_to_host_file_cmd=func_convert_file_noop + ;; + * ) # otherwise, assume *nix + lt_cv_to_host_file_cmd=func_convert_file_nix_to_cygwin + ;; + esac + ;; + * ) # unhandled hosts (and "normal" native builds) + lt_cv_to_host_file_cmd=func_convert_file_noop + ;; +esac + +fi + +to_host_file_cmd=$lt_cv_to_host_file_cmd +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_host_file_cmd" >&5 +$as_echo "$lt_cv_to_host_file_cmd" >&6; } + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to toolchain format" >&5 +$as_echo_n "checking how to convert $build file names to toolchain format... " >&6; } +if ${lt_cv_to_tool_file_cmd+:} false; then : + $as_echo_n "(cached) " >&6 +else + #assume ordinary cross tools, or native build. +lt_cv_to_tool_file_cmd=func_convert_file_noop +case $host in + *-*-mingw* ) + case $build in + *-*-mingw* ) # actually msys + lt_cv_to_tool_file_cmd=func_convert_file_msys_to_w32 + ;; + esac + ;; +esac + +fi + +to_tool_file_cmd=$lt_cv_to_tool_file_cmd +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_tool_file_cmd" >&5 +$as_echo "$lt_cv_to_tool_file_cmd" >&6; } + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $LD option to reload object files" >&5 +$as_echo_n "checking for $LD option to reload object files... " >&6; } +if ${lt_cv_ld_reload_flag+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_ld_reload_flag='-r' +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_reload_flag" >&5 +$as_echo "$lt_cv_ld_reload_flag" >&6; } +reload_flag=$lt_cv_ld_reload_flag +case $reload_flag in +"" | " "*) ;; +*) reload_flag=" $reload_flag" ;; +esac +reload_cmds='$LD$reload_flag -o $output$reload_objs' +case $host_os in + cygwin* | mingw* | pw32* | cegcc*) + if test yes != "$GCC"; then + reload_cmds=false + fi + ;; + darwin*) + if test yes = "$GCC"; then + reload_cmds='$LTCC $LTCFLAGS -nostdlib $wl-r -o $output$reload_objs' + else + reload_cmds='$LD$reload_flag -o $output$reload_objs' + fi + ;; +esac + + + + + + + + + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args. +set dummy ${ac_tool_prefix}objdump; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OBJDUMP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OBJDUMP"; then + ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OBJDUMP=$ac_cv_prog_OBJDUMP +if test -n "$OBJDUMP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5 +$as_echo "$OBJDUMP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OBJDUMP"; then + ac_ct_OBJDUMP=$OBJDUMP + # Extract the first word of "objdump", so it can be a program name with args. +set dummy objdump; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OBJDUMP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OBJDUMP"; then + ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OBJDUMP="objdump" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP +if test -n "$ac_ct_OBJDUMP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5 +$as_echo "$ac_ct_OBJDUMP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OBJDUMP" = x; then + OBJDUMP="false" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OBJDUMP=$ac_ct_OBJDUMP + fi +else + OBJDUMP="$ac_cv_prog_OBJDUMP" +fi + +test -z "$OBJDUMP" && OBJDUMP=objdump + + + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to recognize dependent libraries" >&5 +$as_echo_n "checking how to recognize dependent libraries... " >&6; } +if ${lt_cv_deplibs_check_method+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_file_magic_cmd='$MAGIC_CMD' +lt_cv_file_magic_test_file= +lt_cv_deplibs_check_method='unknown' +# Need to set the preceding variable on all platforms that support +# interlibrary dependencies. +# 'none' -- dependencies not supported. +# 'unknown' -- same as none, but documents that we really don't know. +# 'pass_all' -- all dependencies passed with no checks. +# 'test_compile' -- check by making test program. +# 'file_magic [[regex]]' -- check by looking for files in library path +# that responds to the $file_magic_cmd with a given extended regex. +# If you have 'file' or equivalent on your system and you're not sure +# whether 'pass_all' will *always* work, you probably want this one. + +case $host_os in +aix[4-9]*) + lt_cv_deplibs_check_method=pass_all + ;; + +beos*) + lt_cv_deplibs_check_method=pass_all + ;; + +bsdi[45]*) + lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)' + lt_cv_file_magic_cmd='/usr/bin/file -L' + lt_cv_file_magic_test_file=/shlib/libc.so + ;; + +cygwin*) + # func_win32_libid is a shell function defined in ltmain.sh + lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL' + lt_cv_file_magic_cmd='func_win32_libid' + ;; + +mingw* | pw32*) + # Base MSYS/MinGW do not provide the 'file' command needed by + # func_win32_libid shell function, so use a weaker test based on 'objdump', + # unless we find 'file', for example because we are cross-compiling. + if ( file / ) >/dev/null 2>&1; then + lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL' + lt_cv_file_magic_cmd='func_win32_libid' + else + # Keep this pattern in sync with the one in func_win32_libid. + lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' + lt_cv_file_magic_cmd='$OBJDUMP -f' + fi + ;; + +cegcc*) + # use the weaker test based on 'objdump'. See mingw*. + lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?' + lt_cv_file_magic_cmd='$OBJDUMP -f' + ;; + +darwin* | rhapsody*) + lt_cv_deplibs_check_method=pass_all + ;; + +freebsd* | dragonfly*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then + case $host_cpu in + i*86 ) + # Not sure whether the presence of OpenBSD here was a mistake. + # Let's accept both of them until this is cleared up. + lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[3-9]86 (compact )?demand paged shared library' + lt_cv_file_magic_cmd=/usr/bin/file + lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*` + ;; + esac + else + lt_cv_deplibs_check_method=pass_all + fi + ;; + +haiku*) + lt_cv_deplibs_check_method=pass_all + ;; + +hpux10.20* | hpux11*) + lt_cv_file_magic_cmd=/usr/bin/file + case $host_cpu in + ia64*) + lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - IA64' + lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so + ;; + hppa*64*) + lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]' + lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl + ;; + *) + lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9]\.[0-9]) shared library' + lt_cv_file_magic_test_file=/usr/lib/libc.sl + ;; + esac + ;; + +interix[3-9]*) + # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here + lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|\.a)$' + ;; + +irix5* | irix6* | nonstopux*) + case $LD in + *-32|*"-32 ") libmagic=32-bit;; + *-n32|*"-n32 ") libmagic=N32;; + *-64|*"-64 ") libmagic=64-bit;; + *) libmagic=never-match;; + esac + lt_cv_deplibs_check_method=pass_all + ;; + +# This must be glibc/ELF. +linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + lt_cv_deplibs_check_method=pass_all + ;; + +netbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then + lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$' + else + lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|_pic\.a)$' + fi + ;; + +newos6*) + lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (executable|dynamic lib)' + lt_cv_file_magic_cmd=/usr/bin/file + lt_cv_file_magic_test_file=/usr/lib/libnls.so + ;; + +*nto* | *qnx*) + lt_cv_deplibs_check_method=pass_all + ;; + +openbsd* | bitrig*) + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then + lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|\.so|_pic\.a)$' + else + lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$' + fi + ;; + +osf3* | osf4* | osf5*) + lt_cv_deplibs_check_method=pass_all + ;; + +rdos*) + lt_cv_deplibs_check_method=pass_all + ;; + +solaris*) + lt_cv_deplibs_check_method=pass_all + ;; + +sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) + lt_cv_deplibs_check_method=pass_all + ;; + +sysv4 | sysv4.3*) + case $host_vendor in + motorola) + lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]' + lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*` + ;; + ncr) + lt_cv_deplibs_check_method=pass_all + ;; + sequent) + lt_cv_file_magic_cmd='/bin/file' + lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )' + ;; + sni) + lt_cv_file_magic_cmd='/bin/file' + lt_cv_deplibs_check_method="file_magic ELF [0-9][0-9]*-bit [LM]SB dynamic lib" + lt_cv_file_magic_test_file=/lib/libc.so + ;; + siemens) + lt_cv_deplibs_check_method=pass_all + ;; + pc) + lt_cv_deplibs_check_method=pass_all + ;; + esac + ;; + +tpf*) + lt_cv_deplibs_check_method=pass_all + ;; +os2*) + lt_cv_deplibs_check_method=pass_all + ;; +esac + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_deplibs_check_method" >&5 +$as_echo "$lt_cv_deplibs_check_method" >&6; } + +file_magic_glob= +want_nocaseglob=no +if test "$build" = "$host"; then + case $host_os in + mingw* | pw32*) + if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then + want_nocaseglob=yes + else + file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[\1]\/[\1]\/g;/g"` + fi + ;; + esac +fi + +file_magic_cmd=$lt_cv_file_magic_cmd +deplibs_check_method=$lt_cv_deplibs_check_method +test -z "$deplibs_check_method" && deplibs_check_method=unknown + + + + + + + + + + + + + + + + + + + + + + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}dlltool", so it can be a program name with args. +set dummy ${ac_tool_prefix}dlltool; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_DLLTOOL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$DLLTOOL"; then + ac_cv_prog_DLLTOOL="$DLLTOOL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +DLLTOOL=$ac_cv_prog_DLLTOOL +if test -n "$DLLTOOL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DLLTOOL" >&5 +$as_echo "$DLLTOOL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_DLLTOOL"; then + ac_ct_DLLTOOL=$DLLTOOL + # Extract the first word of "dlltool", so it can be a program name with args. +set dummy dlltool; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_DLLTOOL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_DLLTOOL"; then + ac_cv_prog_ac_ct_DLLTOOL="$ac_ct_DLLTOOL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_DLLTOOL="dlltool" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_DLLTOOL=$ac_cv_prog_ac_ct_DLLTOOL +if test -n "$ac_ct_DLLTOOL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DLLTOOL" >&5 +$as_echo "$ac_ct_DLLTOOL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_DLLTOOL" = x; then + DLLTOOL="false" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + DLLTOOL=$ac_ct_DLLTOOL + fi +else + DLLTOOL="$ac_cv_prog_DLLTOOL" +fi + +test -z "$DLLTOOL" && DLLTOOL=dlltool + + + + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to associate runtime and link libraries" >&5 +$as_echo_n "checking how to associate runtime and link libraries... " >&6; } +if ${lt_cv_sharedlib_from_linklib_cmd+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_sharedlib_from_linklib_cmd='unknown' + +case $host_os in +cygwin* | mingw* | pw32* | cegcc*) + # two different shell functions defined in ltmain.sh; + # decide which one to use based on capabilities of $DLLTOOL + case `$DLLTOOL --help 2>&1` in + *--identify-strict*) + lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib + ;; + *) + lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback + ;; + esac + ;; +*) + # fallback: assume linklib IS sharedlib + lt_cv_sharedlib_from_linklib_cmd=$ECHO + ;; +esac + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sharedlib_from_linklib_cmd" >&5 +$as_echo "$lt_cv_sharedlib_from_linklib_cmd" >&6; } +sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd +test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO + + + + + + + +if test -n "$ac_tool_prefix"; then + for ac_prog in ar + do + # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. +set dummy $ac_tool_prefix$ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_AR+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$AR"; then + ac_cv_prog_AR="$AR" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_AR="$ac_tool_prefix$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +AR=$ac_cv_prog_AR +if test -n "$AR"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5 +$as_echo "$AR" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$AR" && break + done +fi +if test -z "$AR"; then + ac_ct_AR=$AR + for ac_prog in ar +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_AR+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_AR"; then + ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_AR="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_AR=$ac_cv_prog_ac_ct_AR +if test -n "$ac_ct_AR"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5 +$as_echo "$ac_ct_AR" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$ac_ct_AR" && break +done + + if test "x$ac_ct_AR" = x; then + AR="false" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + AR=$ac_ct_AR + fi +fi + +: ${AR=ar} +: ${AR_FLAGS=cru} + + + + + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for archiver @FILE support" >&5 +$as_echo_n "checking for archiver @FILE support... " >&6; } +if ${lt_cv_ar_at_file+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_ar_at_file=no + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + echo conftest.$ac_objext > conftest.lst + lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&5' + { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5 + (eval $lt_ar_try) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + if test 0 -eq "$ac_status"; then + # Ensure the archiver fails upon bogus file names. + rm -f conftest.$ac_objext libconftest.a + { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5 + (eval $lt_ar_try) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + if test 0 -ne "$ac_status"; then + lt_cv_ar_at_file=@ + fi + fi + rm -f conftest.* libconftest.a + +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ar_at_file" >&5 +$as_echo "$lt_cv_ar_at_file" >&6; } + +if test no = "$lt_cv_ar_at_file"; then + archiver_list_spec= +else + archiver_list_spec=$lt_cv_ar_at_file +fi + + + + + + + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args. +set dummy ${ac_tool_prefix}strip; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_STRIP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$STRIP"; then + ac_cv_prog_STRIP="$STRIP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_STRIP="${ac_tool_prefix}strip" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +STRIP=$ac_cv_prog_STRIP +if test -n "$STRIP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5 +$as_echo "$STRIP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_STRIP"; then + ac_ct_STRIP=$STRIP + # Extract the first word of "strip", so it can be a program name with args. +set dummy strip; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_STRIP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_STRIP"; then + ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_STRIP="strip" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP +if test -n "$ac_ct_STRIP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5 +$as_echo "$ac_ct_STRIP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_STRIP" = x; then + STRIP=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + STRIP=$ac_ct_STRIP + fi +else + STRIP="$ac_cv_prog_STRIP" +fi + +test -z "$STRIP" && STRIP=: + + + + + + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args. +set dummy ${ac_tool_prefix}ranlib; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_RANLIB+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$RANLIB"; then + ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +RANLIB=$ac_cv_prog_RANLIB +if test -n "$RANLIB"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5 +$as_echo "$RANLIB" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_RANLIB"; then + ac_ct_RANLIB=$RANLIB + # Extract the first word of "ranlib", so it can be a program name with args. +set dummy ranlib; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_RANLIB+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_RANLIB"; then + ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_RANLIB="ranlib" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB +if test -n "$ac_ct_RANLIB"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5 +$as_echo "$ac_ct_RANLIB" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_RANLIB" = x; then + RANLIB=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + RANLIB=$ac_ct_RANLIB + fi +else + RANLIB="$ac_cv_prog_RANLIB" +fi + +test -z "$RANLIB" && RANLIB=: + + + + + + +# Determine commands to create old-style static archives. +old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs' +old_postinstall_cmds='chmod 644 $oldlib' +old_postuninstall_cmds= + +if test -n "$RANLIB"; then + case $host_os in + bitrig* | openbsd*) + old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib" + ;; + *) + old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib" + ;; + esac + old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib" +fi + +case $host_os in + darwin*) + lock_old_archive_extraction=yes ;; + *) + lock_old_archive_extraction=no ;; +esac + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +# If no C compiler was specified, use CC. +LTCC=${LTCC-"$CC"} + +# If no C compiler flags were specified, use CFLAGS. +LTCFLAGS=${LTCFLAGS-"$CFLAGS"} + +# Allow CC to be a program name with arguments. +compiler=$CC + + +# Check for command to grab the raw symbol name followed by C symbol from nm. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking command to parse $NM output from $compiler object" >&5 +$as_echo_n "checking command to parse $NM output from $compiler object... " >&6; } +if ${lt_cv_sys_global_symbol_pipe+:} false; then : + $as_echo_n "(cached) " >&6 +else + +# These are sane defaults that work on at least a few old systems. +# [They come from Ultrix. What could be older than Ultrix?!! ;)] + +# Character class describing NM global symbol codes. +symcode='[BCDEGRST]' + +# Regexp to match symbols that can be accessed directly from C. +sympat='\([_A-Za-z][_A-Za-z0-9]*\)' + +# Define system-specific variables. +case $host_os in +aix*) + symcode='[BCDT]' + ;; +cygwin* | mingw* | pw32* | cegcc*) + symcode='[ABCDGISTW]' + ;; +hpux*) + if test ia64 = "$host_cpu"; then + symcode='[ABCDEGRST]' + fi + ;; +irix* | nonstopux*) + symcode='[BCDEGRST]' + ;; +osf*) + symcode='[BCDEGQRST]' + ;; +solaris*) + symcode='[BDRT]' + ;; +sco3.2v5*) + symcode='[DT]' + ;; +sysv4.2uw2*) + symcode='[DT]' + ;; +sysv5* | sco5v6* | unixware* | OpenUNIX*) + symcode='[ABDT]' + ;; +sysv4) + symcode='[DFNSTU]' + ;; +esac + +# If we're using GNU nm, then use its standard symbol codes. +case `$NM -V 2>&1` in +*GNU* | *'with BFD'*) + symcode='[ABCDGIRSTW]' ;; +esac + +if test "$lt_cv_nm_interface" = "MS dumpbin"; then + # Gets list of data symbols to import. + lt_cv_sys_global_symbol_to_import="sed -n -e 's/^I .* \(.*\)$/\1/p'" + # Adjust the below global symbol transforms to fixup imported variables. + lt_cdecl_hook=" -e 's/^I .* \(.*\)$/extern __declspec(dllimport) char \1;/p'" + lt_c_name_hook=" -e 's/^I .* \(.*\)$/ {\"\1\", (void *) 0},/p'" + lt_c_name_lib_hook="\ + -e 's/^I .* \(lib.*\)$/ {\"\1\", (void *) 0},/p'\ + -e 's/^I .* \(.*\)$/ {\"lib\1\", (void *) 0},/p'" +else + # Disable hooks by default. + lt_cv_sys_global_symbol_to_import= + lt_cdecl_hook= + lt_c_name_hook= + lt_c_name_lib_hook= +fi + +# Transform an extracted symbol line into a proper C declaration. +# Some systems (esp. on ia64) link data and code symbols differently, +# so use this general approach. +lt_cv_sys_global_symbol_to_cdecl="sed -n"\ +$lt_cdecl_hook\ +" -e 's/^T .* \(.*\)$/extern int \1();/p'"\ +" -e 's/^$symcode$symcode* .* \(.*\)$/extern char \1;/p'" + +# Transform an extracted symbol line into symbol name and symbol address +lt_cv_sys_global_symbol_to_c_name_address="sed -n"\ +$lt_c_name_hook\ +" -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\ +" -e 's/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/p'" + +# Transform an extracted symbol line into symbol name with lib prefix and +# symbol address. +lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n"\ +$lt_c_name_lib_hook\ +" -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\ +" -e 's/^$symcode$symcode* .* \(lib.*\)$/ {\"\1\", (void *) \&\1},/p'"\ +" -e 's/^$symcode$symcode* .* \(.*\)$/ {\"lib\1\", (void *) \&\1},/p'" + +# Handle CRLF in mingw tool chain +opt_cr= +case $build_os in +mingw*) + opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp + ;; +esac + +# Try without a prefix underscore, then with it. +for ac_symprfx in "" "_"; do + + # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol. + symxfrm="\\1 $ac_symprfx\\2 \\2" + + # Write the raw and C identifiers. + if test "$lt_cv_nm_interface" = "MS dumpbin"; then + # Fake it for dumpbin and say T for any non-static function, + # D for any global variable and I for any imported variable. + # Also find C++ and __fastcall symbols from MSVC++, + # which start with @ or ?. + lt_cv_sys_global_symbol_pipe="$AWK '"\ +" {last_section=section; section=\$ 3};"\ +" /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\ +" /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\ +" /^ *Symbol name *: /{split(\$ 0,sn,\":\"); si=substr(sn[2],2)};"\ +" /^ *Type *: code/{print \"T\",si,substr(si,length(prfx))};"\ +" /^ *Type *: data/{print \"I\",si,substr(si,length(prfx))};"\ +" \$ 0!~/External *\|/{next};"\ +" / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\ +" {if(hide[section]) next};"\ +" {f=\"D\"}; \$ 0~/\(\).*\|/{f=\"T\"};"\ +" {split(\$ 0,a,/\||\r/); split(a[2],s)};"\ +" s[1]~/^[@?]/{print f,s[1],s[1]; next};"\ +" s[1]~prfx {split(s[1],t,\"@\"); print f,t[1],substr(t[1],length(prfx))}"\ +" ' prfx=^$ac_symprfx" + else + lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[ ]\($symcode$symcode*\)[ ][ ]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'" + fi + lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'" + + # Check to see that the pipe works correctly. + pipe_works=no + + rm -f conftest* + cat > conftest.$ac_ext <<_LT_EOF +#ifdef __cplusplus +extern "C" { +#endif +char nm_test_var; +void nm_test_func(void); +void nm_test_func(void){} +#ifdef __cplusplus +} +#endif +int main(){nm_test_var='a';nm_test_func();return(0);} +_LT_EOF + + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + # Now try to grab the symbols. + nlist=conftest.nm + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist\""; } >&5 + (eval $NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && test -s "$nlist"; then + # Try sorting and uniquifying the output. + if sort "$nlist" | uniq > "$nlist"T; then + mv -f "$nlist"T "$nlist" + else + rm -f "$nlist"T + fi + + # Make sure that we snagged all the symbols we need. + if $GREP ' nm_test_var$' "$nlist" >/dev/null; then + if $GREP ' nm_test_func$' "$nlist" >/dev/null; then + cat <<_LT_EOF > conftest.$ac_ext +/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ +#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE +/* DATA imports from DLLs on WIN32 can't be const, because runtime + relocations are performed -- see ld's documentation on pseudo-relocs. */ +# define LT_DLSYM_CONST +#elif defined __osf__ +/* This system does not cope well with relocations in const data. */ +# define LT_DLSYM_CONST +#else +# define LT_DLSYM_CONST const +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +_LT_EOF + # Now generate the symbol file. + eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext' + + cat <<_LT_EOF >> conftest.$ac_ext + +/* The mapping between symbol names and symbols. */ +LT_DLSYM_CONST struct { + const char *name; + void *address; +} +lt__PROGRAM__LTX_preloaded_symbols[] = +{ + { "@PROGRAM@", (void *) 0 }, +_LT_EOF + $SED "s/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext + cat <<\_LT_EOF >> conftest.$ac_ext + {0, (void *) 0} +}; + +/* This works around a problem in FreeBSD linker */ +#ifdef FREEBSD_WORKAROUND +static const void *lt_preloaded_setup() { + return lt__PROGRAM__LTX_preloaded_symbols; +} +#endif + +#ifdef __cplusplus +} +#endif +_LT_EOF + # Now try linking the two files. + mv conftest.$ac_objext conftstm.$ac_objext + lt_globsym_save_LIBS=$LIBS + lt_globsym_save_CFLAGS=$CFLAGS + LIBS=conftstm.$ac_objext + CFLAGS="$CFLAGS$lt_prog_compiler_no_builtin_flag" + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5 + (eval $ac_link) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && test -s conftest$ac_exeext; then + pipe_works=yes + fi + LIBS=$lt_globsym_save_LIBS + CFLAGS=$lt_globsym_save_CFLAGS + else + echo "cannot find nm_test_func in $nlist" >&5 + fi + else + echo "cannot find nm_test_var in $nlist" >&5 + fi + else + echo "cannot run $lt_cv_sys_global_symbol_pipe" >&5 + fi + else + echo "$progname: failed program was:" >&5 + cat conftest.$ac_ext >&5 + fi + rm -rf conftest* conftst* + + # Do not use the global_symbol_pipe unless it works. + if test yes = "$pipe_works"; then + break + else + lt_cv_sys_global_symbol_pipe= + fi +done + +fi + +if test -z "$lt_cv_sys_global_symbol_pipe"; then + lt_cv_sys_global_symbol_to_cdecl= +fi +if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: failed" >&5 +$as_echo "failed" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5 +$as_echo "ok" >&6; } +fi + +# Response file support. +if test "$lt_cv_nm_interface" = "MS dumpbin"; then + nm_file_list_spec='@' +elif $NM --help 2>/dev/null | grep '[@]FILE' >/dev/null; then + nm_file_list_spec='@' +fi + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sysroot" >&5 +$as_echo_n "checking for sysroot... " >&6; } + +# Check whether --with-sysroot was given. +if test "${with_sysroot+set}" = set; then : + withval=$with_sysroot; +else + with_sysroot=no +fi + + +lt_sysroot= +case $with_sysroot in #( + yes) + if test yes = "$GCC"; then + lt_sysroot=`$CC --print-sysroot 2>/dev/null` + fi + ;; #( + /*) + lt_sysroot=`echo "$with_sysroot" | sed -e "$sed_quote_subst"` + ;; #( + no|'') + ;; #( + *) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_sysroot" >&5 +$as_echo "$with_sysroot" >&6; } + as_fn_error $? "The sysroot must be an absolute path." "$LINENO" 5 + ;; +esac + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${lt_sysroot:-no}" >&5 +$as_echo "${lt_sysroot:-no}" >&6; } + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a working dd" >&5 +$as_echo_n "checking for a working dd... " >&6; } +if ${ac_cv_path_lt_DD+:} false; then : + $as_echo_n "(cached) " >&6 +else + printf 0123456789abcdef0123456789abcdef >conftest.i +cat conftest.i conftest.i >conftest2.i +: ${lt_DD:=$DD} +if test -z "$lt_DD"; then + ac_path_lt_DD_found=false + # Loop through the user's path and test for each of PROGNAME-LIST + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in dd; do + for ac_exec_ext in '' $ac_executable_extensions; do + ac_path_lt_DD="$as_dir/$ac_prog$ac_exec_ext" + as_fn_executable_p "$ac_path_lt_DD" || continue +if "$ac_path_lt_DD" bs=32 count=1 conftest.out 2>/dev/null; then + cmp -s conftest.i conftest.out \ + && ac_cv_path_lt_DD="$ac_path_lt_DD" ac_path_lt_DD_found=: +fi + $ac_path_lt_DD_found && break 3 + done + done + done +IFS=$as_save_IFS + if test -z "$ac_cv_path_lt_DD"; then + : + fi +else + ac_cv_path_lt_DD=$lt_DD +fi + +rm -f conftest.i conftest2.i conftest.out +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_lt_DD" >&5 +$as_echo "$ac_cv_path_lt_DD" >&6; } + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to truncate binary pipes" >&5 +$as_echo_n "checking how to truncate binary pipes... " >&6; } +if ${lt_cv_truncate_bin+:} false; then : + $as_echo_n "(cached) " >&6 +else + printf 0123456789abcdef0123456789abcdef >conftest.i +cat conftest.i conftest.i >conftest2.i +lt_cv_truncate_bin= +if "$ac_cv_path_lt_DD" bs=32 count=1 conftest.out 2>/dev/null; then + cmp -s conftest.i conftest.out \ + && lt_cv_truncate_bin="$ac_cv_path_lt_DD bs=4096 count=1" +fi +rm -f conftest.i conftest2.i conftest.out +test -z "$lt_cv_truncate_bin" && lt_cv_truncate_bin="$SED -e 4q" +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_truncate_bin" >&5 +$as_echo "$lt_cv_truncate_bin" >&6; } + + + + + + + +# Calculate cc_basename. Skip known compiler wrappers and cross-prefix. +func_cc_basename () +{ + for cc_temp in $*""; do + case $cc_temp in + compile | *[\\/]compile | ccache | *[\\/]ccache ) ;; + distcc | *[\\/]distcc | purify | *[\\/]purify ) ;; + \-*) ;; + *) break;; + esac + done + func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"` +} + +# Check whether --enable-libtool-lock was given. +if test "${enable_libtool_lock+set}" = set; then : + enableval=$enable_libtool_lock; +fi + +test no = "$enable_libtool_lock" || enable_libtool_lock=yes + +# Some flags need to be propagated to the compiler or linker for good +# libtool support. +case $host in +ia64-*-hpux*) + # Find out what ABI is being produced by ac_compile, and set mode + # options accordingly. + echo 'int i;' > conftest.$ac_ext + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + case `/usr/bin/file conftest.$ac_objext` in + *ELF-32*) + HPUX_IA64_MODE=32 + ;; + *ELF-64*) + HPUX_IA64_MODE=64 + ;; + esac + fi + rm -rf conftest* + ;; +*-*-irix6*) + # Find out what ABI is being produced by ac_compile, and set linker + # options accordingly. + echo '#line '$LINENO' "configure"' > conftest.$ac_ext + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + if test yes = "$lt_cv_prog_gnu_ld"; then + case `/usr/bin/file conftest.$ac_objext` in + *32-bit*) + LD="${LD-ld} -melf32bsmip" + ;; + *N32*) + LD="${LD-ld} -melf32bmipn32" + ;; + *64-bit*) + LD="${LD-ld} -melf64bmip" + ;; + esac + else + case `/usr/bin/file conftest.$ac_objext` in + *32-bit*) + LD="${LD-ld} -32" + ;; + *N32*) + LD="${LD-ld} -n32" + ;; + *64-bit*) + LD="${LD-ld} -64" + ;; + esac + fi + fi + rm -rf conftest* + ;; + +mips64*-*linux*) + # Find out what ABI is being produced by ac_compile, and set linker + # options accordingly. + echo '#line '$LINENO' "configure"' > conftest.$ac_ext + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + emul=elf + case `/usr/bin/file conftest.$ac_objext` in + *32-bit*) + emul="${emul}32" + ;; + *64-bit*) + emul="${emul}64" + ;; + esac + case `/usr/bin/file conftest.$ac_objext` in + *MSB*) + emul="${emul}btsmip" + ;; + *LSB*) + emul="${emul}ltsmip" + ;; + esac + case `/usr/bin/file conftest.$ac_objext` in + *N32*) + emul="${emul}n32" + ;; + esac + LD="${LD-ld} -m $emul" + fi + rm -rf conftest* + ;; + +x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \ +s390*-*linux*|s390*-*tpf*|sparc*-*linux*) + # Find out what ABI is being produced by ac_compile, and set linker + # options accordingly. Note that the listed cases only cover the + # situations where additional linker options are needed (such as when + # doing 32-bit compilation for a host where ld defaults to 64-bit, or + # vice versa); the common cases where no linker options are needed do + # not appear in the list. + echo 'int i;' > conftest.$ac_ext + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + case `/usr/bin/file conftest.o` in + *32-bit*) + case $host in + x86_64-*kfreebsd*-gnu) + LD="${LD-ld} -m elf_i386_fbsd" + ;; + x86_64-*linux*) + case `/usr/bin/file conftest.o` in + *x86-64*) + LD="${LD-ld} -m elf32_x86_64" + ;; + *) + LD="${LD-ld} -m elf_i386" + ;; + esac + ;; + powerpc64le-*linux*) + LD="${LD-ld} -m elf32lppclinux" + ;; + powerpc64-*linux*) + LD="${LD-ld} -m elf32ppclinux" + ;; + s390x-*linux*) + LD="${LD-ld} -m elf_s390" + ;; + sparc64-*linux*) + LD="${LD-ld} -m elf32_sparc" + ;; + esac + ;; + *64-bit*) + case $host in + x86_64-*kfreebsd*-gnu) + LD="${LD-ld} -m elf_x86_64_fbsd" + ;; + x86_64-*linux*) + LD="${LD-ld} -m elf_x86_64" + ;; + powerpcle-*linux*) + LD="${LD-ld} -m elf64lppc" + ;; + powerpc-*linux*) + LD="${LD-ld} -m elf64ppc" + ;; + s390*-*linux*|s390*-*tpf*) + LD="${LD-ld} -m elf64_s390" + ;; + sparc*-*linux*) + LD="${LD-ld} -m elf64_sparc" + ;; + esac + ;; + esac + fi + rm -rf conftest* + ;; + +*-*-sco3.2v5*) + # On SCO OpenServer 5, we need -belf to get full-featured binaries. + SAVE_CFLAGS=$CFLAGS + CFLAGS="$CFLAGS -belf" + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler needs -belf" >&5 +$as_echo_n "checking whether the C compiler needs -belf... " >&6; } +if ${lt_cv_cc_needs_belf+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + lt_cv_cc_needs_belf=yes +else + lt_cv_cc_needs_belf=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_cc_needs_belf" >&5 +$as_echo "$lt_cv_cc_needs_belf" >&6; } + if test yes != "$lt_cv_cc_needs_belf"; then + # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf + CFLAGS=$SAVE_CFLAGS + fi + ;; +*-*solaris*) + # Find out what ABI is being produced by ac_compile, and set linker + # options accordingly. + echo 'int i;' > conftest.$ac_ext + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + case `/usr/bin/file conftest.o` in + *64-bit*) + case $lt_cv_prog_gnu_ld in + yes*) + case $host in + i?86-*-solaris*|x86_64-*-solaris*) + LD="${LD-ld} -m elf_x86_64" + ;; + sparc*-*-solaris*) + LD="${LD-ld} -m elf64_sparc" + ;; + esac + # GNU ld 2.21 introduced _sol2 emulations. Use them if available. + if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then + LD=${LD-ld}_sol2 + fi + ;; + *) + if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then + LD="${LD-ld} -64" + fi + ;; + esac + ;; + esac + fi + rm -rf conftest* + ;; +esac + +need_locks=$enable_libtool_lock + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}mt", so it can be a program name with args. +set dummy ${ac_tool_prefix}mt; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_MANIFEST_TOOL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$MANIFEST_TOOL"; then + ac_cv_prog_MANIFEST_TOOL="$MANIFEST_TOOL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_MANIFEST_TOOL="${ac_tool_prefix}mt" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +MANIFEST_TOOL=$ac_cv_prog_MANIFEST_TOOL +if test -n "$MANIFEST_TOOL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MANIFEST_TOOL" >&5 +$as_echo "$MANIFEST_TOOL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_MANIFEST_TOOL"; then + ac_ct_MANIFEST_TOOL=$MANIFEST_TOOL + # Extract the first word of "mt", so it can be a program name with args. +set dummy mt; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_MANIFEST_TOOL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_MANIFEST_TOOL"; then + ac_cv_prog_ac_ct_MANIFEST_TOOL="$ac_ct_MANIFEST_TOOL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_MANIFEST_TOOL="mt" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_MANIFEST_TOOL=$ac_cv_prog_ac_ct_MANIFEST_TOOL +if test -n "$ac_ct_MANIFEST_TOOL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_MANIFEST_TOOL" >&5 +$as_echo "$ac_ct_MANIFEST_TOOL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_MANIFEST_TOOL" = x; then + MANIFEST_TOOL=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + MANIFEST_TOOL=$ac_ct_MANIFEST_TOOL + fi +else + MANIFEST_TOOL="$ac_cv_prog_MANIFEST_TOOL" +fi + +test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $MANIFEST_TOOL is a manifest tool" >&5 +$as_echo_n "checking if $MANIFEST_TOOL is a manifest tool... " >&6; } +if ${lt_cv_path_mainfest_tool+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_path_mainfest_tool=no + echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&5 + $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out + cat conftest.err >&5 + if $GREP 'Manifest Tool' conftest.out > /dev/null; then + lt_cv_path_mainfest_tool=yes + fi + rm -f conftest* +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_mainfest_tool" >&5 +$as_echo "$lt_cv_path_mainfest_tool" >&6; } +if test yes != "$lt_cv_path_mainfest_tool"; then + MANIFEST_TOOL=: +fi + + + + + + + case $host_os in + rhapsody* | darwin*) + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}dsymutil", so it can be a program name with args. +set dummy ${ac_tool_prefix}dsymutil; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_DSYMUTIL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$DSYMUTIL"; then + ac_cv_prog_DSYMUTIL="$DSYMUTIL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_DSYMUTIL="${ac_tool_prefix}dsymutil" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +DSYMUTIL=$ac_cv_prog_DSYMUTIL +if test -n "$DSYMUTIL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DSYMUTIL" >&5 +$as_echo "$DSYMUTIL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_DSYMUTIL"; then + ac_ct_DSYMUTIL=$DSYMUTIL + # Extract the first word of "dsymutil", so it can be a program name with args. +set dummy dsymutil; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_DSYMUTIL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_DSYMUTIL"; then + ac_cv_prog_ac_ct_DSYMUTIL="$ac_ct_DSYMUTIL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_DSYMUTIL="dsymutil" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_DSYMUTIL=$ac_cv_prog_ac_ct_DSYMUTIL +if test -n "$ac_ct_DSYMUTIL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DSYMUTIL" >&5 +$as_echo "$ac_ct_DSYMUTIL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_DSYMUTIL" = x; then + DSYMUTIL=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + DSYMUTIL=$ac_ct_DSYMUTIL + fi +else + DSYMUTIL="$ac_cv_prog_DSYMUTIL" +fi + + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}nmedit", so it can be a program name with args. +set dummy ${ac_tool_prefix}nmedit; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_NMEDIT+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$NMEDIT"; then + ac_cv_prog_NMEDIT="$NMEDIT" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_NMEDIT="${ac_tool_prefix}nmedit" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +NMEDIT=$ac_cv_prog_NMEDIT +if test -n "$NMEDIT"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $NMEDIT" >&5 +$as_echo "$NMEDIT" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_NMEDIT"; then + ac_ct_NMEDIT=$NMEDIT + # Extract the first word of "nmedit", so it can be a program name with args. +set dummy nmedit; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_NMEDIT+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_NMEDIT"; then + ac_cv_prog_ac_ct_NMEDIT="$ac_ct_NMEDIT" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_NMEDIT="nmedit" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_NMEDIT=$ac_cv_prog_ac_ct_NMEDIT +if test -n "$ac_ct_NMEDIT"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_NMEDIT" >&5 +$as_echo "$ac_ct_NMEDIT" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_NMEDIT" = x; then + NMEDIT=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + NMEDIT=$ac_ct_NMEDIT + fi +else + NMEDIT="$ac_cv_prog_NMEDIT" +fi + + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}lipo", so it can be a program name with args. +set dummy ${ac_tool_prefix}lipo; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_LIPO+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$LIPO"; then + ac_cv_prog_LIPO="$LIPO" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_LIPO="${ac_tool_prefix}lipo" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +LIPO=$ac_cv_prog_LIPO +if test -n "$LIPO"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LIPO" >&5 +$as_echo "$LIPO" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_LIPO"; then + ac_ct_LIPO=$LIPO + # Extract the first word of "lipo", so it can be a program name with args. +set dummy lipo; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_LIPO+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_LIPO"; then + ac_cv_prog_ac_ct_LIPO="$ac_ct_LIPO" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_LIPO="lipo" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_LIPO=$ac_cv_prog_ac_ct_LIPO +if test -n "$ac_ct_LIPO"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_LIPO" >&5 +$as_echo "$ac_ct_LIPO" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_LIPO" = x; then + LIPO=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + LIPO=$ac_ct_LIPO + fi +else + LIPO="$ac_cv_prog_LIPO" +fi + + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}otool", so it can be a program name with args. +set dummy ${ac_tool_prefix}otool; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OTOOL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OTOOL"; then + ac_cv_prog_OTOOL="$OTOOL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OTOOL="${ac_tool_prefix}otool" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OTOOL=$ac_cv_prog_OTOOL +if test -n "$OTOOL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL" >&5 +$as_echo "$OTOOL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OTOOL"; then + ac_ct_OTOOL=$OTOOL + # Extract the first word of "otool", so it can be a program name with args. +set dummy otool; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OTOOL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OTOOL"; then + ac_cv_prog_ac_ct_OTOOL="$ac_ct_OTOOL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OTOOL="otool" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OTOOL=$ac_cv_prog_ac_ct_OTOOL +if test -n "$ac_ct_OTOOL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL" >&5 +$as_echo "$ac_ct_OTOOL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OTOOL" = x; then + OTOOL=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OTOOL=$ac_ct_OTOOL + fi +else + OTOOL="$ac_cv_prog_OTOOL" +fi + + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}otool64", so it can be a program name with args. +set dummy ${ac_tool_prefix}otool64; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OTOOL64+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OTOOL64"; then + ac_cv_prog_OTOOL64="$OTOOL64" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OTOOL64="${ac_tool_prefix}otool64" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OTOOL64=$ac_cv_prog_OTOOL64 +if test -n "$OTOOL64"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL64" >&5 +$as_echo "$OTOOL64" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OTOOL64"; then + ac_ct_OTOOL64=$OTOOL64 + # Extract the first word of "otool64", so it can be a program name with args. +set dummy otool64; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OTOOL64+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OTOOL64"; then + ac_cv_prog_ac_ct_OTOOL64="$ac_ct_OTOOL64" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OTOOL64="otool64" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OTOOL64=$ac_cv_prog_ac_ct_OTOOL64 +if test -n "$ac_ct_OTOOL64"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL64" >&5 +$as_echo "$ac_ct_OTOOL64" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OTOOL64" = x; then + OTOOL64=":" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OTOOL64=$ac_ct_OTOOL64 + fi +else + OTOOL64="$ac_cv_prog_OTOOL64" +fi + + + + + + + + + + + + + + + + + + + + + + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -single_module linker flag" >&5 +$as_echo_n "checking for -single_module linker flag... " >&6; } +if ${lt_cv_apple_cc_single_mod+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_apple_cc_single_mod=no + if test -z "$LT_MULTI_MODULE"; then + # By default we will add the -single_module flag. You can override + # by either setting the environment variable LT_MULTI_MODULE + # non-empty at configure time, or by adding -multi_module to the + # link flags. + rm -rf libconftest.dylib* + echo "int foo(void){return 1;}" > conftest.c + echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \ +-dynamiclib -Wl,-single_module conftest.c" >&5 + $LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \ + -dynamiclib -Wl,-single_module conftest.c 2>conftest.err + _lt_result=$? + # If there is a non-empty error log, and "single_module" + # appears in it, assume the flag caused a linker warning + if test -s conftest.err && $GREP single_module conftest.err; then + cat conftest.err >&5 + # Otherwise, if the output was created with a 0 exit code from + # the compiler, it worked. + elif test -f libconftest.dylib && test 0 = "$_lt_result"; then + lt_cv_apple_cc_single_mod=yes + else + cat conftest.err >&5 + fi + rm -rf libconftest.dylib* + rm -f conftest.* + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_apple_cc_single_mod" >&5 +$as_echo "$lt_cv_apple_cc_single_mod" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -exported_symbols_list linker flag" >&5 +$as_echo_n "checking for -exported_symbols_list linker flag... " >&6; } +if ${lt_cv_ld_exported_symbols_list+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_ld_exported_symbols_list=no + save_LDFLAGS=$LDFLAGS + echo "_main" > conftest.sym + LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + lt_cv_ld_exported_symbols_list=yes +else + lt_cv_ld_exported_symbols_list=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + LDFLAGS=$save_LDFLAGS + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_exported_symbols_list" >&5 +$as_echo "$lt_cv_ld_exported_symbols_list" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -force_load linker flag" >&5 +$as_echo_n "checking for -force_load linker flag... " >&6; } +if ${lt_cv_ld_force_load+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_ld_force_load=no + cat > conftest.c << _LT_EOF +int forced_loaded() { return 2;} +_LT_EOF + echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&5 + $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&5 + echo "$AR cru libconftest.a conftest.o" >&5 + $AR cru libconftest.a conftest.o 2>&5 + echo "$RANLIB libconftest.a" >&5 + $RANLIB libconftest.a 2>&5 + cat > conftest.c << _LT_EOF +int main() { return 0;} +_LT_EOF + echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&5 + $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err + _lt_result=$? + if test -s conftest.err && $GREP force_load conftest.err; then + cat conftest.err >&5 + elif test -f conftest && test 0 = "$_lt_result" && $GREP forced_load conftest >/dev/null 2>&1; then + lt_cv_ld_force_load=yes + else + cat conftest.err >&5 + fi + rm -f conftest.err libconftest.a conftest conftest.c + rm -rf conftest.dSYM + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5 +$as_echo "$lt_cv_ld_force_load" >&6; } + case $host_os in + rhapsody* | darwin1.[012]) + _lt_dar_allow_undefined='$wl-undefined ${wl}suppress' ;; + darwin1.*) + _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;; + darwin*) # darwin 5.x on + # if running on 10.5 or later, the deployment target defaults + # to the OS version, if on x86, and 10.4, the deployment + # target defaults to 10.4. Don't you love it? + case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in + 10.0,*86*-darwin8*|10.0,*-darwin[91]*) + _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;; + 10.[012][,.]*) + _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;; + 10.*) + _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;; + esac + ;; + esac + if test yes = "$lt_cv_apple_cc_single_mod"; then + _lt_dar_single_mod='$single_module' + fi + if test yes = "$lt_cv_ld_exported_symbols_list"; then + _lt_dar_export_syms=' $wl-exported_symbols_list,$output_objdir/$libname-symbols.expsym' + else + _lt_dar_export_syms='~$NMEDIT -s $output_objdir/$libname-symbols.expsym $lib' + fi + if test : != "$DSYMUTIL" && test no = "$lt_cv_ld_force_load"; then + _lt_dsymutil='~$DSYMUTIL $lib || :' + else + _lt_dsymutil= + fi + ;; + esac + +# func_munge_path_list VARIABLE PATH +# ----------------------------------- +# VARIABLE is name of variable containing _space_ separated list of +# directories to be munged by the contents of PATH, which is string +# having a format: +# "DIR[:DIR]:" +# string "DIR[ DIR]" will be prepended to VARIABLE +# ":DIR[:DIR]" +# string "DIR[ DIR]" will be appended to VARIABLE +# "DIRP[:DIRP]::[DIRA:]DIRA" +# string "DIRP[ DIRP]" will be prepended to VARIABLE and string +# "DIRA[ DIRA]" will be appended to VARIABLE +# "DIR[:DIR]" +# VARIABLE will be replaced by "DIR[ DIR]" +func_munge_path_list () +{ + case x$2 in + x) + ;; + *:) + eval $1=\"`$ECHO $2 | $SED 's/:/ /g'` \$$1\" + ;; + x:*) + eval $1=\"\$$1 `$ECHO $2 | $SED 's/:/ /g'`\" + ;; + *::*) + eval $1=\"\$$1\ `$ECHO $2 | $SED -e 's/.*:://' -e 's/:/ /g'`\" + eval $1=\"`$ECHO $2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \$$1\" + ;; + *) + eval $1=\"`$ECHO $2 | $SED 's/:/ /g'`\" + ;; + esac +} + +for ac_header in dlfcn.h +do : + ac_fn_c_check_header_compile "$LINENO" "dlfcn.h" "ac_cv_header_dlfcn_h" "$ac_includes_default +" +if test "x$ac_cv_header_dlfcn_h" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_DLFCN_H 1 +_ACEOF + +fi + +done + + + + + +# Set options + + + + enable_dlopen=no + + + enable_win32_dll=no + + + # Check whether --enable-shared was given. +if test "${enable_shared+set}" = set; then : + enableval=$enable_shared; p=${PACKAGE-default} + case $enableval in + yes) enable_shared=yes ;; + no) enable_shared=no ;; + *) + enable_shared=no + # Look at the argument we got. We use all the common list separators. + lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, + for pkg in $enableval; do + IFS=$lt_save_ifs + if test "X$pkg" = "X$p"; then + enable_shared=yes + fi + done + IFS=$lt_save_ifs + ;; + esac +else + enable_shared=yes +fi + + + + + + + + + + # Check whether --enable-static was given. +if test "${enable_static+set}" = set; then : + enableval=$enable_static; p=${PACKAGE-default} + case $enableval in + yes) enable_static=yes ;; + no) enable_static=no ;; + *) + enable_static=no + # Look at the argument we got. We use all the common list separators. + lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, + for pkg in $enableval; do + IFS=$lt_save_ifs + if test "X$pkg" = "X$p"; then + enable_static=yes + fi + done + IFS=$lt_save_ifs + ;; + esac +else + enable_static=yes +fi + + + + + + + + + + +# Check whether --with-pic was given. +if test "${with_pic+set}" = set; then : + withval=$with_pic; lt_p=${PACKAGE-default} + case $withval in + yes|no) pic_mode=$withval ;; + *) + pic_mode=default + # Look at the argument we got. We use all the common list separators. + lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, + for lt_pkg in $withval; do + IFS=$lt_save_ifs + if test "X$lt_pkg" = "X$lt_p"; then + pic_mode=yes + fi + done + IFS=$lt_save_ifs + ;; + esac +else + pic_mode=default +fi + + + + + + + + + # Check whether --enable-fast-install was given. +if test "${enable_fast_install+set}" = set; then : + enableval=$enable_fast_install; p=${PACKAGE-default} + case $enableval in + yes) enable_fast_install=yes ;; + no) enable_fast_install=no ;; + *) + enable_fast_install=no + # Look at the argument we got. We use all the common list separators. + lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, + for pkg in $enableval; do + IFS=$lt_save_ifs + if test "X$pkg" = "X$p"; then + enable_fast_install=yes + fi + done + IFS=$lt_save_ifs + ;; + esac +else + enable_fast_install=yes +fi + + + + + + + + + shared_archive_member_spec= +case $host,$enable_shared in +power*-*-aix[5-9]*,yes) + { $as_echo "$as_me:${as_lineno-$LINENO}: checking which variant of shared library versioning to provide" >&5 +$as_echo_n "checking which variant of shared library versioning to provide... " >&6; } + +# Check whether --with-aix-soname was given. +if test "${with_aix_soname+set}" = set; then : + withval=$with_aix_soname; case $withval in + aix|svr4|both) + ;; + *) + as_fn_error $? "Unknown argument to --with-aix-soname" "$LINENO" 5 + ;; + esac + lt_cv_with_aix_soname=$with_aix_soname +else + if ${lt_cv_with_aix_soname+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_with_aix_soname=aix +fi + + with_aix_soname=$lt_cv_with_aix_soname +fi + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_aix_soname" >&5 +$as_echo "$with_aix_soname" >&6; } + if test aix != "$with_aix_soname"; then + # For the AIX way of multilib, we name the shared archive member + # based on the bitwidth used, traditionally 'shr.o' or 'shr_64.o', + # and 'shr.imp' or 'shr_64.imp', respectively, for the Import File. + # Even when GNU compilers ignore OBJECT_MODE but need '-maix64' flag, + # the AIX toolchain works better with OBJECT_MODE set (default 32). + if test 64 = "${OBJECT_MODE-32}"; then + shared_archive_member_spec=shr_64 + else + shared_archive_member_spec=shr + fi + fi + ;; +*) + with_aix_soname=aix + ;; +esac + + + + + + + + + + +# This can be used to rebuild libtool when needed +LIBTOOL_DEPS=$ltmain + +# Always use our own libtool. +LIBTOOL='$(SHELL) $(top_builddir)/libtool' + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +test -z "$LN_S" && LN_S="ln -s" + + + + + + + + + + + + + + +if test -n "${ZSH_VERSION+set}"; then + setopt NO_GLOB_SUBST +fi + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for objdir" >&5 +$as_echo_n "checking for objdir... " >&6; } +if ${lt_cv_objdir+:} false; then : + $as_echo_n "(cached) " >&6 +else + rm -f .libs 2>/dev/null +mkdir .libs 2>/dev/null +if test -d .libs; then + lt_cv_objdir=.libs +else + # MS-DOS does not allow filenames that begin with a dot. + lt_cv_objdir=_libs +fi +rmdir .libs 2>/dev/null +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_objdir" >&5 +$as_echo "$lt_cv_objdir" >&6; } +objdir=$lt_cv_objdir + + + + + +cat >>confdefs.h <<_ACEOF +#define LT_OBJDIR "$lt_cv_objdir/" +_ACEOF + + + + +case $host_os in +aix3*) + # AIX sometimes has problems with the GCC collect2 program. For some + # reason, if we set the COLLECT_NAMES environment variable, the problems + # vanish in a puff of smoke. + if test set != "${COLLECT_NAMES+set}"; then + COLLECT_NAMES= + export COLLECT_NAMES + fi + ;; +esac + +# Global variables: +ofile=libtool +can_build_shared=yes + +# All known linkers require a '.a' archive for static linking (except MSVC, +# which needs '.lib'). +libext=a + +with_gnu_ld=$lt_cv_prog_gnu_ld + +old_CC=$CC +old_CFLAGS=$CFLAGS + +# Set sane defaults for various variables +test -z "$CC" && CC=cc +test -z "$LTCC" && LTCC=$CC +test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS +test -z "$LD" && LD=ld +test -z "$ac_objext" && ac_objext=o + +func_cc_basename $compiler +cc_basename=$func_cc_basename_result + + +# Only perform the check for file, if the check method requires it +test -z "$MAGIC_CMD" && MAGIC_CMD=file +case $deplibs_check_method in +file_magic*) + if test "$file_magic_cmd" = '$MAGIC_CMD'; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ac_tool_prefix}file" >&5 +$as_echo_n "checking for ${ac_tool_prefix}file... " >&6; } +if ${lt_cv_path_MAGIC_CMD+:} false; then : + $as_echo_n "(cached) " >&6 +else + case $MAGIC_CMD in +[\\/*] | ?:[\\/]*) + lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path. + ;; +*) + lt_save_MAGIC_CMD=$MAGIC_CMD + lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR + ac_dummy="/usr/bin$PATH_SEPARATOR$PATH" + for ac_dir in $ac_dummy; do + IFS=$lt_save_ifs + test -z "$ac_dir" && ac_dir=. + if test -f "$ac_dir/${ac_tool_prefix}file"; then + lt_cv_path_MAGIC_CMD=$ac_dir/"${ac_tool_prefix}file" + if test -n "$file_magic_test_file"; then + case $deplibs_check_method in + "file_magic "*) + file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"` + MAGIC_CMD=$lt_cv_path_MAGIC_CMD + if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null | + $EGREP "$file_magic_regex" > /dev/null; then + : + else + cat <<_LT_EOF 1>&2 + +*** Warning: the command libtool uses to detect shared libraries, +*** $file_magic_cmd, produces output that libtool cannot recognize. +*** The result is that libtool may fail to recognize shared libraries +*** as such. This will affect the creation of libtool libraries that +*** depend on shared libraries, but programs linked with such libtool +*** libraries will work regardless of this problem. Nevertheless, you +*** may want to report the problem to your system manager and/or to +*** bug-libtool@gnu.org + +_LT_EOF + fi ;; + esac + fi + break + fi + done + IFS=$lt_save_ifs + MAGIC_CMD=$lt_save_MAGIC_CMD + ;; +esac +fi + +MAGIC_CMD=$lt_cv_path_MAGIC_CMD +if test -n "$MAGIC_CMD"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5 +$as_echo "$MAGIC_CMD" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + + + +if test -z "$lt_cv_path_MAGIC_CMD"; then + if test -n "$ac_tool_prefix"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for file" >&5 +$as_echo_n "checking for file... " >&6; } +if ${lt_cv_path_MAGIC_CMD+:} false; then : + $as_echo_n "(cached) " >&6 +else + case $MAGIC_CMD in +[\\/*] | ?:[\\/]*) + lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path. + ;; +*) + lt_save_MAGIC_CMD=$MAGIC_CMD + lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR + ac_dummy="/usr/bin$PATH_SEPARATOR$PATH" + for ac_dir in $ac_dummy; do + IFS=$lt_save_ifs + test -z "$ac_dir" && ac_dir=. + if test -f "$ac_dir/file"; then + lt_cv_path_MAGIC_CMD=$ac_dir/"file" + if test -n "$file_magic_test_file"; then + case $deplibs_check_method in + "file_magic "*) + file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"` + MAGIC_CMD=$lt_cv_path_MAGIC_CMD + if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null | + $EGREP "$file_magic_regex" > /dev/null; then + : + else + cat <<_LT_EOF 1>&2 + +*** Warning: the command libtool uses to detect shared libraries, +*** $file_magic_cmd, produces output that libtool cannot recognize. +*** The result is that libtool may fail to recognize shared libraries +*** as such. This will affect the creation of libtool libraries that +*** depend on shared libraries, but programs linked with such libtool +*** libraries will work regardless of this problem. Nevertheless, you +*** may want to report the problem to your system manager and/or to +*** bug-libtool@gnu.org + +_LT_EOF + fi ;; + esac + fi + break + fi + done + IFS=$lt_save_ifs + MAGIC_CMD=$lt_save_MAGIC_CMD + ;; +esac +fi + +MAGIC_CMD=$lt_cv_path_MAGIC_CMD +if test -n "$MAGIC_CMD"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5 +$as_echo "$MAGIC_CMD" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + else + MAGIC_CMD=: + fi +fi + + fi + ;; +esac + +# Use C for the default configuration in the libtool script + +lt_save_CC=$CC +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + +# Source file extension for C test sources. +ac_ext=c + +# Object file extension for compiled C test sources. +objext=o +objext=$objext + +# Code to be used in simple compile tests +lt_simple_compile_test_code="int some_variable = 0;" + +# Code to be used in simple link tests +lt_simple_link_test_code='int main(){return(0);}' + + + + + + + +# If no C compiler was specified, use CC. +LTCC=${LTCC-"$CC"} + +# If no C compiler flags were specified, use CFLAGS. +LTCFLAGS=${LTCFLAGS-"$CFLAGS"} + +# Allow CC to be a program name with arguments. +compiler=$CC + +# Save the default compiler, since it gets overwritten when the other +# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP. +compiler_DEFAULT=$CC + +# save warnings/boilerplate of simple test code +ac_outfile=conftest.$ac_objext +echo "$lt_simple_compile_test_code" >conftest.$ac_ext +eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err +_lt_compiler_boilerplate=`cat conftest.err` +$RM conftest* + +ac_outfile=conftest.$ac_objext +echo "$lt_simple_link_test_code" >conftest.$ac_ext +eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err +_lt_linker_boilerplate=`cat conftest.err` +$RM -r conftest* + + +## CAVEAT EMPTOR: +## There is no encapsulation within the following macros, do not change +## the running order or otherwise move them around unless you know exactly +## what you are doing... +if test -n "$compiler"; then + +lt_prog_compiler_no_builtin_flag= + +if test yes = "$GCC"; then + case $cc_basename in + nvcc*) + lt_prog_compiler_no_builtin_flag=' -Xcompiler -fno-builtin' ;; + *) + lt_prog_compiler_no_builtin_flag=' -fno-builtin' ;; + esac + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -fno-rtti -fno-exceptions" >&5 +$as_echo_n "checking if $compiler supports -fno-rtti -fno-exceptions... " >&6; } +if ${lt_cv_prog_compiler_rtti_exceptions+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_rtti_exceptions=no + ac_outfile=conftest.$ac_objext + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + lt_compiler_flag="-fno-rtti -fno-exceptions" ## exclude from sc_useless_quotes_in_assignment + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + # The option is referenced via a variable to avoid confusing sed. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5) + (eval "$lt_compile" 2>conftest.err) + ac_status=$? + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + if (exit $ac_status) && test -s "$ac_outfile"; then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings other than the usual output. + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then + lt_cv_prog_compiler_rtti_exceptions=yes + fi + fi + $RM conftest* + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_rtti_exceptions" >&5 +$as_echo "$lt_cv_prog_compiler_rtti_exceptions" >&6; } + +if test yes = "$lt_cv_prog_compiler_rtti_exceptions"; then + lt_prog_compiler_no_builtin_flag="$lt_prog_compiler_no_builtin_flag -fno-rtti -fno-exceptions" +else + : +fi + +fi + + + + + + + lt_prog_compiler_wl= +lt_prog_compiler_pic= +lt_prog_compiler_static= + + + if test yes = "$GCC"; then + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_static='-static' + + case $host_os in + aix*) + # All AIX code is PIC. + if test ia64 = "$host_cpu"; then + # AIX 5 now supports IA64 processor + lt_prog_compiler_static='-Bstatic' + fi + lt_prog_compiler_pic='-fPIC' + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + lt_prog_compiler_pic='-fPIC' + ;; + m68k) + # FIXME: we need at least 68020 code to build shared libraries, but + # adding the '-m68020' flag to GCC prevents building anything better, + # like '-m68040'. + lt_prog_compiler_pic='-m68020 -resident32 -malways-restore-a4' + ;; + esac + ;; + + beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*) + # PIC is the default for these OSes. + ;; + + mingw* | cygwin* | pw32* | os2* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + # Although the cygwin gcc ignores -fPIC, still need this for old-style + # (--disable-auto-import) libraries + lt_prog_compiler_pic='-DDLL_EXPORT' + case $host_os in + os2*) + lt_prog_compiler_static='$wl-static' + ;; + esac + ;; + + darwin* | rhapsody*) + # PIC is the default on this platform + # Common symbols not allowed in MH_DYLIB files + lt_prog_compiler_pic='-fno-common' + ;; + + haiku*) + # PIC is the default for Haiku. + # The "-static" flag exists, but is broken. + lt_prog_compiler_static= + ;; + + hpux*) + # PIC is the default for 64-bit PA HP-UX, but not for 32-bit + # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag + # sets the default TLS model and affects inlining. + case $host_cpu in + hppa*64*) + # +Z the default + ;; + *) + lt_prog_compiler_pic='-fPIC' + ;; + esac + ;; + + interix[3-9]*) + # Interix 3.x gcc -fpic/-fPIC options generate broken code. + # Instead, we relocate shared libraries at runtime. + ;; + + msdosdjgpp*) + # Just because we use GCC doesn't mean we suddenly get shared libraries + # on systems that don't support them. + lt_prog_compiler_can_build_shared=no + enable_shared=no + ;; + + *nto* | *qnx*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + lt_prog_compiler_pic='-fPIC -shared' + ;; + + sysv4*MP*) + if test -d /usr/nec; then + lt_prog_compiler_pic=-Kconform_pic + fi + ;; + + *) + lt_prog_compiler_pic='-fPIC' + ;; + esac + + case $cc_basename in + nvcc*) # Cuda Compiler Driver 2.2 + lt_prog_compiler_wl='-Xlinker ' + if test -n "$lt_prog_compiler_pic"; then + lt_prog_compiler_pic="-Xcompiler $lt_prog_compiler_pic" + fi + ;; + esac + else + # PORTME Check for flag to pass linker flags through the system compiler. + case $host_os in + aix*) + lt_prog_compiler_wl='-Wl,' + if test ia64 = "$host_cpu"; then + # AIX 5 now supports IA64 processor + lt_prog_compiler_static='-Bstatic' + else + lt_prog_compiler_static='-bnso -bI:/lib/syscalls.exp' + fi + ;; + + darwin* | rhapsody*) + # PIC is the default on this platform + # Common symbols not allowed in MH_DYLIB files + lt_prog_compiler_pic='-fno-common' + case $cc_basename in + nagfor*) + # NAG Fortran compiler + lt_prog_compiler_wl='-Wl,-Wl,,' + lt_prog_compiler_pic='-PIC' + lt_prog_compiler_static='-Bstatic' + ;; + esac + ;; + + mingw* | cygwin* | pw32* | os2* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + lt_prog_compiler_pic='-DDLL_EXPORT' + case $host_os in + os2*) + lt_prog_compiler_static='$wl-static' + ;; + esac + ;; + + hpux9* | hpux10* | hpux11*) + lt_prog_compiler_wl='-Wl,' + # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but + # not for PA HP-UX. + case $host_cpu in + hppa*64*|ia64*) + # +Z the default + ;; + *) + lt_prog_compiler_pic='+Z' + ;; + esac + # Is there a better lt_prog_compiler_static that works with the bundled CC? + lt_prog_compiler_static='$wl-a ${wl}archive' + ;; + + irix5* | irix6* | nonstopux*) + lt_prog_compiler_wl='-Wl,' + # PIC (with -KPIC) is the default. + lt_prog_compiler_static='-non_shared' + ;; + + linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + case $cc_basename in + # old Intel for x86_64, which still supported -KPIC. + ecc*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-static' + ;; + # icc used to be incompatible with GCC. + # ICC 10 doesn't accept -KPIC any more. + icc* | ifort*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-fPIC' + lt_prog_compiler_static='-static' + ;; + # Lahey Fortran 8.1. + lf95*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='--shared' + lt_prog_compiler_static='--static' + ;; + nagfor*) + # NAG Fortran compiler + lt_prog_compiler_wl='-Wl,-Wl,,' + lt_prog_compiler_pic='-PIC' + lt_prog_compiler_static='-Bstatic' + ;; + tcc*) + # Fabrice Bellard et al's Tiny C Compiler + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-fPIC' + lt_prog_compiler_static='-static' + ;; + pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*) + # Portland Group compilers (*not* the Pentium gcc compiler, + # which looks to be a dead project) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-fpic' + lt_prog_compiler_static='-Bstatic' + ;; + ccc*) + lt_prog_compiler_wl='-Wl,' + # All Alpha code is PIC. + lt_prog_compiler_static='-non_shared' + ;; + xl* | bgxl* | bgf* | mpixl*) + # IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-qpic' + lt_prog_compiler_static='-qstaticlink' + ;; + *) + case `$CC -V 2>&1 | sed 5q` in + *Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [1-7].* | *Sun*Fortran*\ 8.[0-3]*) + # Sun Fortran 8.3 passes all unrecognized flags to the linker + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + lt_prog_compiler_wl='' + ;; + *Sun\ F* | *Sun*Fortran*) + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + lt_prog_compiler_wl='-Qoption ld ' + ;; + *Sun\ C*) + # Sun C 5.9 + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + lt_prog_compiler_wl='-Wl,' + ;; + *Intel*\ [CF]*Compiler*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-fPIC' + lt_prog_compiler_static='-static' + ;; + *Portland\ Group*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-fpic' + lt_prog_compiler_static='-Bstatic' + ;; + esac + ;; + esac + ;; + + newsos6) + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + ;; + + *nto* | *qnx*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + lt_prog_compiler_pic='-fPIC -shared' + ;; + + osf3* | osf4* | osf5*) + lt_prog_compiler_wl='-Wl,' + # All OSF/1 code is PIC. + lt_prog_compiler_static='-non_shared' + ;; + + rdos*) + lt_prog_compiler_static='-non_shared' + ;; + + solaris*) + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + case $cc_basename in + f77* | f90* | f95* | sunf77* | sunf90* | sunf95*) + lt_prog_compiler_wl='-Qoption ld ';; + *) + lt_prog_compiler_wl='-Wl,';; + esac + ;; + + sunos4*) + lt_prog_compiler_wl='-Qoption ld ' + lt_prog_compiler_pic='-PIC' + lt_prog_compiler_static='-Bstatic' + ;; + + sysv4 | sysv4.2uw2* | sysv4.3*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + ;; + + sysv4*MP*) + if test -d /usr/nec; then + lt_prog_compiler_pic='-Kconform_pic' + lt_prog_compiler_static='-Bstatic' + fi + ;; + + sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_pic='-KPIC' + lt_prog_compiler_static='-Bstatic' + ;; + + unicos*) + lt_prog_compiler_wl='-Wl,' + lt_prog_compiler_can_build_shared=no + ;; + + uts4*) + lt_prog_compiler_pic='-pic' + lt_prog_compiler_static='-Bstatic' + ;; + + *) + lt_prog_compiler_can_build_shared=no + ;; + esac + fi + +case $host_os in + # For platforms that do not support PIC, -DPIC is meaningless: + *djgpp*) + lt_prog_compiler_pic= + ;; + *) + lt_prog_compiler_pic="$lt_prog_compiler_pic -DPIC" + ;; +esac + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5 +$as_echo_n "checking for $compiler option to produce PIC... " >&6; } +if ${lt_cv_prog_compiler_pic+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_pic=$lt_prog_compiler_pic +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic" >&5 +$as_echo "$lt_cv_prog_compiler_pic" >&6; } +lt_prog_compiler_pic=$lt_cv_prog_compiler_pic + +# +# Check to make sure the PIC flag actually works. +# +if test -n "$lt_prog_compiler_pic"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic works" >&5 +$as_echo_n "checking if $compiler PIC flag $lt_prog_compiler_pic works... " >&6; } +if ${lt_cv_prog_compiler_pic_works+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_pic_works=no + ac_outfile=conftest.$ac_objext + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + lt_compiler_flag="$lt_prog_compiler_pic -DPIC" ## exclude from sc_useless_quotes_in_assignment + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + # The option is referenced via a variable to avoid confusing sed. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5) + (eval "$lt_compile" 2>conftest.err) + ac_status=$? + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + if (exit $ac_status) && test -s "$ac_outfile"; then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings other than the usual output. + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then + lt_cv_prog_compiler_pic_works=yes + fi + fi + $RM conftest* + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_works" >&5 +$as_echo "$lt_cv_prog_compiler_pic_works" >&6; } + +if test yes = "$lt_cv_prog_compiler_pic_works"; then + case $lt_prog_compiler_pic in + "" | " "*) ;; + *) lt_prog_compiler_pic=" $lt_prog_compiler_pic" ;; + esac +else + lt_prog_compiler_pic= + lt_prog_compiler_can_build_shared=no +fi + +fi + + + + + + + + + + + +# +# Check to make sure the static flag actually works. +# +wl=$lt_prog_compiler_wl eval lt_tmp_static_flag=\"$lt_prog_compiler_static\" +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler static flag $lt_tmp_static_flag works" >&5 +$as_echo_n "checking if $compiler static flag $lt_tmp_static_flag works... " >&6; } +if ${lt_cv_prog_compiler_static_works+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_static_works=no + save_LDFLAGS=$LDFLAGS + LDFLAGS="$LDFLAGS $lt_tmp_static_flag" + echo "$lt_simple_link_test_code" > conftest.$ac_ext + if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then + # The linker can only warn and ignore the option if not recognized + # So say no if there are warnings + if test -s conftest.err; then + # Append any errors to the config.log. + cat conftest.err 1>&5 + $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if diff conftest.exp conftest.er2 >/dev/null; then + lt_cv_prog_compiler_static_works=yes + fi + else + lt_cv_prog_compiler_static_works=yes + fi + fi + $RM -r conftest* + LDFLAGS=$save_LDFLAGS + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_static_works" >&5 +$as_echo "$lt_cv_prog_compiler_static_works" >&6; } + +if test yes = "$lt_cv_prog_compiler_static_works"; then + : +else + lt_prog_compiler_static= +fi + + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5 +$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; } +if ${lt_cv_prog_compiler_c_o+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_c_o=no + $RM -r conftest 2>/dev/null + mkdir conftest + cd conftest + mkdir out + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + + lt_compiler_flag="-o out/conftest2.$ac_objext" + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5) + (eval "$lt_compile" 2>out/conftest.err) + ac_status=$? + cat out/conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + if (exit $ac_status) && test -s out/conftest2.$ac_objext + then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp + $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2 + if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then + lt_cv_prog_compiler_c_o=yes + fi + fi + chmod u+w . 2>&5 + $RM conftest* + # SGI C++ compiler will create directory out/ii_files/ for + # template instantiation + test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files + $RM out/* && rmdir out + cd .. + $RM -r conftest + $RM conftest* + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5 +$as_echo "$lt_cv_prog_compiler_c_o" >&6; } + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5 +$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; } +if ${lt_cv_prog_compiler_c_o+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_c_o=no + $RM -r conftest 2>/dev/null + mkdir conftest + cd conftest + mkdir out + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + + lt_compiler_flag="-o out/conftest2.$ac_objext" + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5) + (eval "$lt_compile" 2>out/conftest.err) + ac_status=$? + cat out/conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + if (exit $ac_status) && test -s out/conftest2.$ac_objext + then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp + $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2 + if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then + lt_cv_prog_compiler_c_o=yes + fi + fi + chmod u+w . 2>&5 + $RM conftest* + # SGI C++ compiler will create directory out/ii_files/ for + # template instantiation + test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files + $RM out/* && rmdir out + cd .. + $RM -r conftest + $RM conftest* + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5 +$as_echo "$lt_cv_prog_compiler_c_o" >&6; } + + + + +hard_links=nottested +if test no = "$lt_cv_prog_compiler_c_o" && test no != "$need_locks"; then + # do not overwrite the value of need_locks provided by the user + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can lock with hard links" >&5 +$as_echo_n "checking if we can lock with hard links... " >&6; } + hard_links=yes + $RM conftest* + ln conftest.a conftest.b 2>/dev/null && hard_links=no + touch conftest.a + ln conftest.a conftest.b 2>&5 || hard_links=no + ln conftest.a conftest.b 2>/dev/null && hard_links=no + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $hard_links" >&5 +$as_echo "$hard_links" >&6; } + if test no = "$hard_links"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&5 +$as_echo "$as_me: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&2;} + need_locks=warn + fi +else + need_locks=no +fi + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5 +$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; } + + runpath_var= + allow_undefined_flag= + always_export_symbols=no + archive_cmds= + archive_expsym_cmds= + compiler_needs_object=no + enable_shared_with_static_runtimes=no + export_dynamic_flag_spec= + export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols' + hardcode_automatic=no + hardcode_direct=no + hardcode_direct_absolute=no + hardcode_libdir_flag_spec= + hardcode_libdir_separator= + hardcode_minus_L=no + hardcode_shlibpath_var=unsupported + inherit_rpath=no + link_all_deplibs=unknown + module_cmds= + module_expsym_cmds= + old_archive_from_new_cmds= + old_archive_from_expsyms_cmds= + thread_safe_flag_spec= + whole_archive_flag_spec= + # include_expsyms should be a list of space-separated symbols to be *always* + # included in the symbol list + include_expsyms= + # exclude_expsyms can be an extended regexp of symbols to exclude + # it will be wrapped by ' (' and ')$', so one must not match beginning or + # end of line. Example: 'a|bc|.*d.*' will exclude the symbols 'a' and 'bc', + # as well as any symbol that contains 'd'. + exclude_expsyms='_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*' + # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out + # platforms (ab)use it in PIC code, but their linkers get confused if + # the symbol is explicitly referenced. Since portable code cannot + # rely on this symbol name, it's probably fine to never include it in + # preloaded symbol tables. + # Exclude shared library initialization/finalization symbols. + extract_expsyms_cmds= + + case $host_os in + cygwin* | mingw* | pw32* | cegcc*) + # FIXME: the MSVC++ port hasn't been tested in a loooong time + # When not using gcc, we currently assume that we are using + # Microsoft Visual C++. + if test yes != "$GCC"; then + with_gnu_ld=no + fi + ;; + interix*) + # we just hope/assume this is gcc and not c89 (= MSVC++) + with_gnu_ld=yes + ;; + openbsd* | bitrig*) + with_gnu_ld=no + ;; + esac + + ld_shlibs=yes + + # On some targets, GNU ld is compatible enough with the native linker + # that we're better off using the native interface for both. + lt_use_gnu_ld_interface=no + if test yes = "$with_gnu_ld"; then + case $host_os in + aix*) + # The AIX port of GNU ld has always aspired to compatibility + # with the native linker. However, as the warning in the GNU ld + # block says, versions before 2.19.5* couldn't really create working + # shared libraries, regardless of the interface used. + case `$LD -v 2>&1` in + *\ \(GNU\ Binutils\)\ 2.19.5*) ;; + *\ \(GNU\ Binutils\)\ 2.[2-9]*) ;; + *\ \(GNU\ Binutils\)\ [3-9]*) ;; + *) + lt_use_gnu_ld_interface=yes + ;; + esac + ;; + *) + lt_use_gnu_ld_interface=yes + ;; + esac + fi + + if test yes = "$lt_use_gnu_ld_interface"; then + # If archive_cmds runs LD, not CC, wlarc should be empty + wlarc='$wl' + + # Set some defaults for GNU ld with shared library support. These + # are reset later if shared libraries are not supported. Putting them + # here allows them to be overridden if necessary. + runpath_var=LD_RUN_PATH + hardcode_libdir_flag_spec='$wl-rpath $wl$libdir' + export_dynamic_flag_spec='$wl--export-dynamic' + # ancient GNU ld didn't support --whole-archive et. al. + if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then + whole_archive_flag_spec=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive' + else + whole_archive_flag_spec= + fi + supports_anon_versioning=no + case `$LD -v | $SED -e 's/(^)\+)\s\+//' 2>&1` in + *GNU\ gold*) supports_anon_versioning=yes ;; + *\ [01].* | *\ 2.[0-9].* | *\ 2.10.*) ;; # catch versions < 2.11 + *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ... + *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ... + *\ 2.11.*) ;; # other 2.11 versions + *) supports_anon_versioning=yes ;; + esac + + # See if GNU ld supports shared libraries. + case $host_os in + aix[3-9]*) + # On AIX/PPC, the GNU linker is very broken + if test ia64 != "$host_cpu"; then + ld_shlibs=no + cat <<_LT_EOF 1>&2 + +*** Warning: the GNU linker, at least up to release 2.19, is reported +*** to be unable to reliably create shared libraries on AIX. +*** Therefore, libtool is disabling shared libraries support. If you +*** really care for shared libraries, you may want to install binutils +*** 2.20 or above, or modify your PATH so that a non-GNU linker is found. +*** You will then need to restart the configuration process. + +_LT_EOF + fi + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + archive_expsym_cmds='' + ;; + m68k) + archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)' + hardcode_libdir_flag_spec='-L$libdir' + hardcode_minus_L=yes + ;; + esac + ;; + + beos*) + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + allow_undefined_flag=unsupported + # Joseph Beckenbach says some releases of gcc + # support --undefined. This deserves some investigation. FIXME + archive_cmds='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + else + ld_shlibs=no + fi + ;; + + cygwin* | mingw* | pw32* | cegcc*) + # _LT_TAGVAR(hardcode_libdir_flag_spec, ) is actually meaningless, + # as there is no search path for DLLs. + hardcode_libdir_flag_spec='-L$libdir' + export_dynamic_flag_spec='$wl--export-all-symbols' + allow_undefined_flag=unsupported + always_export_symbols=no + enable_shared_with_static_runtimes=yes + export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1 DATA/;s/^.*[ ]__nm__\([^ ]*\)[ ][^ ]*/\1 DATA/;/^I[ ]/d;/^[AITW][ ]/s/.* //'\'' | sort | uniq > $export_symbols' + exclude_expsyms='[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname' + + if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + # If the export-symbols file already is a .def file, use it as + # is; otherwise, prepend EXPORTS... + archive_expsym_cmds='if test DEF = "`$SED -n -e '\''s/^[ ]*//'\'' -e '\''/^\(;.*\)*$/d'\'' -e '\''s/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p'\'' -e q $export_symbols`" ; then + cp $export_symbols $output_objdir/$soname.def; + else + echo EXPORTS > $output_objdir/$soname.def; + cat $export_symbols >> $output_objdir/$soname.def; + fi~ + $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + else + ld_shlibs=no + fi + ;; + + haiku*) + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + link_all_deplibs=yes + ;; + + os2*) + hardcode_libdir_flag_spec='-L$libdir' + hardcode_minus_L=yes + allow_undefined_flag=unsupported + shrext_cmds=.dll + archive_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + archive_expsym_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + prefix_cmds="$SED"~ + if test EXPORTS = "`$SED 1q $export_symbols`"; then + prefix_cmds="$prefix_cmds -e 1d"; + fi~ + prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~ + cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + old_archive_From_new_cmds='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def' + enable_shared_with_static_runtimes=yes + ;; + + interix[3-9]*) + hardcode_direct=no + hardcode_shlibpath_var=no + hardcode_libdir_flag_spec='$wl-rpath,$libdir' + export_dynamic_flag_spec='$wl-E' + # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc. + # Instead, shared libraries are loaded at an image base (0x10000000 by + # default) and relocated if they conflict, which is a slow very memory + # consuming and fragmenting process. To avoid this, we pick a random, + # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link + # time. Moving up from 0x10000000 also allows more sbrk(2) space. + archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + archive_expsym_cmds='sed "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + ;; + + gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu) + tmp_diet=no + if test linux-dietlibc = "$host_os"; then + case $cc_basename in + diet\ *) tmp_diet=yes;; # linux-dietlibc with static linking (!diet-dyn) + esac + fi + if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \ + && test no = "$tmp_diet" + then + tmp_addflag=' $pic_flag' + tmp_sharedflag='-shared' + case $cc_basename,$host_cpu in + pgcc*) # Portland Group C compiler + whole_archive_flag_spec='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + tmp_addflag=' $pic_flag' + ;; + pgf77* | pgf90* | pgf95* | pgfortran*) + # Portland Group f77 and f90 compilers + whole_archive_flag_spec='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + tmp_addflag=' $pic_flag -Mnomain' ;; + ecc*,ia64* | icc*,ia64*) # Intel C compiler on ia64 + tmp_addflag=' -i_dynamic' ;; + efc*,ia64* | ifort*,ia64*) # Intel Fortran compiler on ia64 + tmp_addflag=' -i_dynamic -nofor_main' ;; + ifc* | ifort*) # Intel Fortran compiler + tmp_addflag=' -nofor_main' ;; + lf95*) # Lahey Fortran 8.1 + whole_archive_flag_spec= + tmp_sharedflag='--shared' ;; + nagfor*) # NAGFOR 5.3 + tmp_sharedflag='-Wl,-shared' ;; + xl[cC]* | bgxl[cC]* | mpixl[cC]*) # IBM XL C 8.0 on PPC (deal with xlf below) + tmp_sharedflag='-qmkshrobj' + tmp_addflag= ;; + nvcc*) # Cuda Compiler Driver 2.2 + whole_archive_flag_spec='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + compiler_needs_object=yes + ;; + esac + case `$CC -V 2>&1 | sed 5q` in + *Sun\ C*) # Sun C 5.9 + whole_archive_flag_spec='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + compiler_needs_object=yes + tmp_sharedflag='-G' ;; + *Sun\ F*) # Sun Fortran 8.3 + tmp_sharedflag='-G' ;; + esac + archive_cmds='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + + if test yes = "$supports_anon_versioning"; then + archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~ + cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~ + echo "local: *; };" >> $output_objdir/$libname.ver~ + $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib' + fi + + case $cc_basename in + tcc*) + export_dynamic_flag_spec='-rdynamic' + ;; + xlf* | bgf* | bgxlf* | mpixlf*) + # IBM XL Fortran 10.1 on PPC cannot create shared libs itself + whole_archive_flag_spec='--whole-archive$convenience --no-whole-archive' + hardcode_libdir_flag_spec='$wl-rpath $wl$libdir' + archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib' + if test yes = "$supports_anon_versioning"; then + archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~ + cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~ + echo "local: *; };" >> $output_objdir/$libname.ver~ + $LD -shared $libobjs $deplibs $linker_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib' + fi + ;; + esac + else + ld_shlibs=no + fi + ;; + + netbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib' + wlarc= + else + archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + fi + ;; + + solaris*) + if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then + ld_shlibs=no + cat <<_LT_EOF 1>&2 + +*** Warning: The releases 2.8.* of the GNU linker cannot reliably +*** create shared libraries on Solaris systems. Therefore, libtool +*** is disabling shared libraries support. We urge you to upgrade GNU +*** binutils to release 2.9.1 or newer. Another option is to modify +*** your PATH or compiler configuration so that the native linker is +*** used, and then restart. + +_LT_EOF + elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + else + ld_shlibs=no + fi + ;; + + sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*) + case `$LD -v 2>&1` in + *\ [01].* | *\ 2.[0-9].* | *\ 2.1[0-5].*) + ld_shlibs=no + cat <<_LT_EOF 1>&2 + +*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 cannot +*** reliably create shared libraries on SCO systems. Therefore, libtool +*** is disabling shared libraries support. We urge you to upgrade GNU +*** binutils to release 2.16.91.0.3 or newer. Another option is to modify +*** your PATH or compiler configuration so that the native linker is +*** used, and then restart. + +_LT_EOF + ;; + *) + # For security reasons, it is highly recommended that you always + # use absolute paths for naming shared libraries, and exclude the + # DT_RUNPATH tag from executables and libraries. But doing so + # requires that you compile everything twice, which is a pain. + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + hardcode_libdir_flag_spec='$wl-rpath $wl$libdir' + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + else + ld_shlibs=no + fi + ;; + esac + ;; + + sunos4*) + archive_cmds='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags' + wlarc= + hardcode_direct=yes + hardcode_shlibpath_var=no + ;; + + *) + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + else + ld_shlibs=no + fi + ;; + esac + + if test no = "$ld_shlibs"; then + runpath_var= + hardcode_libdir_flag_spec= + export_dynamic_flag_spec= + whole_archive_flag_spec= + fi + else + # PORTME fill in a description of your system's linker (not GNU ld) + case $host_os in + aix3*) + allow_undefined_flag=unsupported + always_export_symbols=yes + archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname' + # Note: this linker hardcodes the directories in LIBPATH if there + # are no directories specified by -L. + hardcode_minus_L=yes + if test yes = "$GCC" && test -z "$lt_prog_compiler_static"; then + # Neither direct hardcoding nor static linking is supported with a + # broken collect2. + hardcode_direct=unsupported + fi + ;; + + aix[4-9]*) + if test ia64 = "$host_cpu"; then + # On IA64, the linker does run time linking by default, so we don't + # have to do anything special. + aix_use_runtimelinking=no + exp_sym_flag='-Bexport' + no_entry_flag= + else + # If we're using GNU nm, then we don't want the "-C" option. + # -C means demangle to GNU nm, but means don't demangle to AIX nm. + # Without the "-l" option, or with the "-B" option, AIX nm treats + # weak defined symbols like other global defined symbols, whereas + # GNU nm marks them as "W". + # While the 'weak' keyword is ignored in the Export File, we need + # it in the Import File for the 'aix-soname' feature, so we have + # to replace the "-B" option with "-P" for AIX nm. + if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then + export_symbols_cmds='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && (substr(\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols' + else + export_symbols_cmds='`func_echo_all $NM | $SED -e '\''s/B\([^B]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && (substr(\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols' + fi + aix_use_runtimelinking=no + + # Test if we are trying to use run time linking or normal + # AIX style linking. If -brtl is somewhere in LDFLAGS, we + # have runtime linking enabled, and use it for executables. + # For shared libraries, we enable/disable runtime linking + # depending on the kind of the shared library created - + # when "with_aix_soname,aix_use_runtimelinking" is: + # "aix,no" lib.a(lib.so.V) shared, rtl:no, for executables + # "aix,yes" lib.so shared, rtl:yes, for executables + # lib.a static archive + # "both,no" lib.so.V(shr.o) shared, rtl:yes + # lib.a(lib.so.V) shared, rtl:no, for executables + # "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables + # lib.a(lib.so.V) shared, rtl:no + # "svr4,*" lib.so.V(shr.o) shared, rtl:yes, for executables + # lib.a static archive + case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*) + for ld_flag in $LDFLAGS; do + if (test x-brtl = "x$ld_flag" || test x-Wl,-brtl = "x$ld_flag"); then + aix_use_runtimelinking=yes + break + fi + done + if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then + # With aix-soname=svr4, we create the lib.so.V shared archives only, + # so we don't have lib.a shared libs to link our executables. + # We have to force runtime linking in this case. + aix_use_runtimelinking=yes + LDFLAGS="$LDFLAGS -Wl,-brtl" + fi + ;; + esac + + exp_sym_flag='-bexport' + no_entry_flag='-bnoentry' + fi + + # When large executables or shared objects are built, AIX ld can + # have problems creating the table of contents. If linking a library + # or program results in "error TOC overflow" add -mminimal-toc to + # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not + # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS. + + archive_cmds='' + hardcode_direct=yes + hardcode_direct_absolute=yes + hardcode_libdir_separator=':' + link_all_deplibs=yes + file_list_spec='$wl-f,' + case $with_aix_soname,$aix_use_runtimelinking in + aix,*) ;; # traditional, no import file + svr4,* | *,yes) # use import file + # The Import File defines what to hardcode. + hardcode_direct=no + hardcode_direct_absolute=no + ;; + esac + + if test yes = "$GCC"; then + case $host_os in aix4.[012]|aix4.[012].*) + # We only want to do this on AIX 4.2 and lower, the check + # below for broken collect2 doesn't work under 4.3+ + collect2name=`$CC -print-prog-name=collect2` + if test -f "$collect2name" && + strings "$collect2name" | $GREP resolve_lib_name >/dev/null + then + # We have reworked collect2 + : + else + # We have old collect2 + hardcode_direct=unsupported + # It fails to find uninstalled libraries when the uninstalled + # path is not listed in the libpath. Setting hardcode_minus_L + # to unsupported forces relinking + hardcode_minus_L=yes + hardcode_libdir_flag_spec='-L$libdir' + hardcode_libdir_separator= + fi + ;; + esac + shared_flag='-shared' + if test yes = "$aix_use_runtimelinking"; then + shared_flag="$shared_flag "'$wl-G' + fi + # Need to ensure runtime linking is disabled for the traditional + # shared library, or the linker may eventually find shared libraries + # /with/ Import File - we do not want to mix them. + shared_flag_aix='-shared' + shared_flag_svr4='-shared $wl-G' + else + # not using gcc + if test ia64 = "$host_cpu"; then + # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release + # chokes on -Wl,-G. The following line is correct: + shared_flag='-G' + else + if test yes = "$aix_use_runtimelinking"; then + shared_flag='$wl-G' + else + shared_flag='$wl-bM:SRE' + fi + shared_flag_aix='$wl-bM:SRE' + shared_flag_svr4='$wl-G' + fi + fi + + export_dynamic_flag_spec='$wl-bexpall' + # It seems that -bexpall does not export symbols beginning with + # underscore (_), so it is better to generate a list of symbols to export. + always_export_symbols=yes + if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then + # Warning - without using the other runtime loading flags (-brtl), + # -berok will link without error, but may produce a broken library. + allow_undefined_flag='-berok' + # Determine the default libpath from the value encoded in an + # empty executable. + if test set = "${lt_cv_aix_libpath+set}"; then + aix_libpath=$lt_cv_aix_libpath +else + if ${lt_cv_aix_libpath_+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + + lt_aix_libpath_sed=' + /Import File Strings/,/^$/ { + /^0/ { + s/^0 *\([^ ]*\) *$/\1/ + p + } + }' + lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + # Check for a 64-bit object if we didn't find anything. + if test -z "$lt_cv_aix_libpath_"; then + lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + fi +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + if test -z "$lt_cv_aix_libpath_"; then + lt_cv_aix_libpath_=/usr/lib:/lib + fi + +fi + + aix_libpath=$lt_cv_aix_libpath_ +fi + + hardcode_libdir_flag_spec='$wl-blibpath:$libdir:'"$aix_libpath" + archive_expsym_cmds='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag + else + if test ia64 = "$host_cpu"; then + hardcode_libdir_flag_spec='$wl-R $libdir:/usr/lib:/lib' + allow_undefined_flag="-z nodefs" + archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols" + else + # Determine the default libpath from the value encoded in an + # empty executable. + if test set = "${lt_cv_aix_libpath+set}"; then + aix_libpath=$lt_cv_aix_libpath +else + if ${lt_cv_aix_libpath_+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + + lt_aix_libpath_sed=' + /Import File Strings/,/^$/ { + /^0/ { + s/^0 *\([^ ]*\) *$/\1/ + p + } + }' + lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + # Check for a 64-bit object if we didn't find anything. + if test -z "$lt_cv_aix_libpath_"; then + lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + fi +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + if test -z "$lt_cv_aix_libpath_"; then + lt_cv_aix_libpath_=/usr/lib:/lib + fi + +fi + + aix_libpath=$lt_cv_aix_libpath_ +fi + + hardcode_libdir_flag_spec='$wl-blibpath:$libdir:'"$aix_libpath" + # Warning - without using the other run time loading flags, + # -berok will link without error, but may produce a broken library. + no_undefined_flag=' $wl-bernotok' + allow_undefined_flag=' $wl-berok' + if test yes = "$with_gnu_ld"; then + # We only use this code for GNU lds that support --whole-archive. + whole_archive_flag_spec='$wl--whole-archive$convenience $wl--no-whole-archive' + else + # Exported symbols can be pulled into shared objects from archives + whole_archive_flag_spec='$convenience' + fi + archive_cmds_need_lc=yes + archive_expsym_cmds='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d' + # -brtl affects multiple linker settings, -berok does not and is overridden later + compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([, ]\\)%-berok\\1%g"`' + if test svr4 != "$with_aix_soname"; then + # This is similar to how AIX traditionally builds its shared libraries. + archive_expsym_cmds="$archive_expsym_cmds"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname' + fi + if test aix != "$with_aix_soname"; then + archive_expsym_cmds="$archive_expsym_cmds"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp' + else + # used by -dlpreopen to get the symbols + archive_expsym_cmds="$archive_expsym_cmds"'~$MV $output_objdir/$realname.d/$soname $output_objdir' + fi + archive_expsym_cmds="$archive_expsym_cmds"'~$RM -r $output_objdir/$realname.d' + fi + fi + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + archive_expsym_cmds='' + ;; + m68k) + archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)' + hardcode_libdir_flag_spec='-L$libdir' + hardcode_minus_L=yes + ;; + esac + ;; + + bsdi[45]*) + export_dynamic_flag_spec=-rdynamic + ;; + + cygwin* | mingw* | pw32* | cegcc*) + # When not using gcc, we currently assume that we are using + # Microsoft Visual C++. + # hardcode_libdir_flag_spec is actually meaningless, as there is + # no search path for DLLs. + case $cc_basename in + cl*) + # Native MSVC + hardcode_libdir_flag_spec=' ' + allow_undefined_flag=unsupported + always_export_symbols=yes + file_list_spec='@' + # Tell ltmain to make .lib files, not .a files. + libext=lib + # Tell ltmain to make .dll files, not .so files. + shrext_cmds=.dll + # FIXME: Setting linknames here is a bad hack. + archive_cmds='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames=' + archive_expsym_cmds='if test DEF = "`$SED -n -e '\''s/^[ ]*//'\'' -e '\''/^\(;.*\)*$/d'\'' -e '\''s/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p'\'' -e q $export_symbols`" ; then + cp "$export_symbols" "$output_objdir/$soname.def"; + echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp"; + else + $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp; + fi~ + $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~ + linknames=' + # The linker will not automatically build a static lib if we build a DLL. + # _LT_TAGVAR(old_archive_from_new_cmds, )='true' + enable_shared_with_static_runtimes=yes + exclude_expsyms='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*' + export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1,DATA/'\'' | $SED -e '\''/^[AITW][ ]/s/.*[ ]//'\'' | sort | uniq > $export_symbols' + # Don't use ranlib + old_postinstall_cmds='chmod 644 $oldlib' + postlink_cmds='lt_outputfile="@OUTPUT@"~ + lt_tool_outputfile="@TOOL_OUTPUT@"~ + case $lt_outputfile in + *.exe|*.EXE) ;; + *) + lt_outputfile=$lt_outputfile.exe + lt_tool_outputfile=$lt_tool_outputfile.exe + ;; + esac~ + if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then + $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1; + $RM "$lt_outputfile.manifest"; + fi' + ;; + *) + # Assume MSVC wrapper + hardcode_libdir_flag_spec=' ' + allow_undefined_flag=unsupported + # Tell ltmain to make .lib files, not .a files. + libext=lib + # Tell ltmain to make .dll files, not .so files. + shrext_cmds=.dll + # FIXME: Setting linknames here is a bad hack. + archive_cmds='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames=' + # The linker will automatically build a .lib file if we build a DLL. + old_archive_from_new_cmds='true' + # FIXME: Should let the user specify the lib program. + old_archive_cmds='lib -OUT:$oldlib$oldobjs$old_deplibs' + enable_shared_with_static_runtimes=yes + ;; + esac + ;; + + darwin* | rhapsody*) + + + archive_cmds_need_lc=no + hardcode_direct=no + hardcode_automatic=yes + hardcode_shlibpath_var=unsupported + if test yes = "$lt_cv_ld_force_load"; then + whole_archive_flag_spec='`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience $wl-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`' + + else + whole_archive_flag_spec='' + fi + link_all_deplibs=yes + allow_undefined_flag=$_lt_dar_allow_undefined + case $cc_basename in + ifort*|nagfor*) _lt_dar_can_shared=yes ;; + *) _lt_dar_can_shared=$GCC ;; + esac + if test yes = "$_lt_dar_can_shared"; then + output_verbose_link_cmd=func_echo_all + archive_cmds="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dsymutil" + module_cmds="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dsymutil" + archive_expsym_cmds="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dar_export_syms$_lt_dsymutil" + module_expsym_cmds="sed -e 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dar_export_syms$_lt_dsymutil" + + else + ld_shlibs=no + fi + + ;; + + dgux*) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_libdir_flag_spec='-L$libdir' + hardcode_shlibpath_var=no + ;; + + # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor + # support. Future versions do this automatically, but an explicit c++rt0.o + # does not break anything, and helps significantly (at the cost of a little + # extra space). + freebsd2.2*) + archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o' + hardcode_libdir_flag_spec='-R$libdir' + hardcode_direct=yes + hardcode_shlibpath_var=no + ;; + + # Unfortunately, older versions of FreeBSD 2 do not have this feature. + freebsd2.*) + archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' + hardcode_direct=yes + hardcode_minus_L=yes + hardcode_shlibpath_var=no + ;; + + # FreeBSD 3 and greater uses gcc -shared to do shared libraries. + freebsd* | dragonfly*) + archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + hardcode_libdir_flag_spec='-R$libdir' + hardcode_direct=yes + hardcode_shlibpath_var=no + ;; + + hpux9*) + if test yes = "$GCC"; then + archive_cmds='$RM $output_objdir/$soname~$CC -shared $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib' + else + archive_cmds='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib' + fi + hardcode_libdir_flag_spec='$wl+b $wl$libdir' + hardcode_libdir_separator=: + hardcode_direct=yes + + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + hardcode_minus_L=yes + export_dynamic_flag_spec='$wl-E' + ;; + + hpux10*) + if test yes,no = "$GCC,$with_gnu_ld"; then + archive_cmds='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags' + else + archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' + fi + if test no = "$with_gnu_ld"; then + hardcode_libdir_flag_spec='$wl+b $wl$libdir' + hardcode_libdir_separator=: + hardcode_direct=yes + hardcode_direct_absolute=yes + export_dynamic_flag_spec='$wl-E' + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + hardcode_minus_L=yes + fi + ;; + + hpux11*) + if test yes,no = "$GCC,$with_gnu_ld"; then + case $host_cpu in + hppa*64*) + archive_cmds='$CC -shared $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + ia64*) + archive_cmds='$CC -shared $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags' + ;; + *) + archive_cmds='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags' + ;; + esac + else + case $host_cpu in + hppa*64*) + archive_cmds='$CC -b $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + ia64*) + archive_cmds='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags' + ;; + *) + + # Older versions of the 11.00 compiler do not understand -b yet + # (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does) + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC understands -b" >&5 +$as_echo_n "checking if $CC understands -b... " >&6; } +if ${lt_cv_prog_compiler__b+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler__b=no + save_LDFLAGS=$LDFLAGS + LDFLAGS="$LDFLAGS -b" + echo "$lt_simple_link_test_code" > conftest.$ac_ext + if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then + # The linker can only warn and ignore the option if not recognized + # So say no if there are warnings + if test -s conftest.err; then + # Append any errors to the config.log. + cat conftest.err 1>&5 + $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if diff conftest.exp conftest.er2 >/dev/null; then + lt_cv_prog_compiler__b=yes + fi + else + lt_cv_prog_compiler__b=yes + fi + fi + $RM -r conftest* + LDFLAGS=$save_LDFLAGS + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler__b" >&5 +$as_echo "$lt_cv_prog_compiler__b" >&6; } + +if test yes = "$lt_cv_prog_compiler__b"; then + archive_cmds='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags' +else + archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' +fi + + ;; + esac + fi + if test no = "$with_gnu_ld"; then + hardcode_libdir_flag_spec='$wl+b $wl$libdir' + hardcode_libdir_separator=: + + case $host_cpu in + hppa*64*|ia64*) + hardcode_direct=no + hardcode_shlibpath_var=no + ;; + *) + hardcode_direct=yes + hardcode_direct_absolute=yes + export_dynamic_flag_spec='$wl-E' + + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + hardcode_minus_L=yes + ;; + esac + fi + ;; + + irix5* | irix6* | nonstopux*) + if test yes = "$GCC"; then + archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' + # Try to use the -exported_symbol ld option, if it does not + # work, assume that -exports_file does not work either and + # implicitly export all symbols. + # This should be the same for all languages, so no per-tag cache variable. + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $host_os linker accepts -exported_symbol" >&5 +$as_echo_n "checking whether the $host_os linker accepts -exported_symbol... " >&6; } +if ${lt_cv_irix_exported_symbol+:} false; then : + $as_echo_n "(cached) " >&6 +else + save_LDFLAGS=$LDFLAGS + LDFLAGS="$LDFLAGS -shared $wl-exported_symbol ${wl}foo $wl-update_registry $wl/dev/null" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +int foo (void) { return 0; } +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + lt_cv_irix_exported_symbol=yes +else + lt_cv_irix_exported_symbol=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + LDFLAGS=$save_LDFLAGS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_irix_exported_symbol" >&5 +$as_echo "$lt_cv_irix_exported_symbol" >&6; } + if test yes = "$lt_cv_irix_exported_symbol"; then + archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations $wl-exports_file $wl$export_symbols -o $lib' + fi + else + archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' + archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -exports_file $export_symbols -o $lib' + fi + archive_cmds_need_lc='no' + hardcode_libdir_flag_spec='$wl-rpath $wl$libdir' + hardcode_libdir_separator=: + inherit_rpath=yes + link_all_deplibs=yes + ;; + + linux*) + case $cc_basename in + tcc*) + # Fabrice Bellard et al's Tiny C Compiler + ld_shlibs=yes + archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + ;; + esac + ;; + + netbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' # a.out + else + archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags' # ELF + fi + hardcode_libdir_flag_spec='-R$libdir' + hardcode_direct=yes + hardcode_shlibpath_var=no + ;; + + newsos6) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_direct=yes + hardcode_libdir_flag_spec='$wl-rpath $wl$libdir' + hardcode_libdir_separator=: + hardcode_shlibpath_var=no + ;; + + *nto* | *qnx*) + ;; + + openbsd* | bitrig*) + if test -f /usr/libexec/ld.so; then + hardcode_direct=yes + hardcode_shlibpath_var=no + hardcode_direct_absolute=yes + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then + archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags $wl-retain-symbols-file,$export_symbols' + hardcode_libdir_flag_spec='$wl-rpath,$libdir' + export_dynamic_flag_spec='$wl-E' + else + archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + hardcode_libdir_flag_spec='$wl-rpath,$libdir' + fi + else + ld_shlibs=no + fi + ;; + + os2*) + hardcode_libdir_flag_spec='-L$libdir' + hardcode_minus_L=yes + allow_undefined_flag=unsupported + shrext_cmds=.dll + archive_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + archive_expsym_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + prefix_cmds="$SED"~ + if test EXPORTS = "`$SED 1q $export_symbols`"; then + prefix_cmds="$prefix_cmds -e 1d"; + fi~ + prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~ + cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + old_archive_From_new_cmds='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def' + enable_shared_with_static_runtimes=yes + ;; + + osf3*) + if test yes = "$GCC"; then + allow_undefined_flag=' $wl-expect_unresolved $wl\*' + archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' + else + allow_undefined_flag=' -expect_unresolved \*' + archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' + fi + archive_cmds_need_lc='no' + hardcode_libdir_flag_spec='$wl-rpath $wl$libdir' + hardcode_libdir_separator=: + ;; + + osf4* | osf5*) # as osf3* with the addition of -msym flag + if test yes = "$GCC"; then + allow_undefined_flag=' $wl-expect_unresolved $wl\*' + archive_cmds='$CC -shared$allow_undefined_flag $pic_flag $libobjs $deplibs $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' + hardcode_libdir_flag_spec='$wl-rpath $wl$libdir' + else + allow_undefined_flag=' -expect_unresolved \*' + archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' + archive_expsym_cmds='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~ + $CC -shared$allow_undefined_flag $wl-input $wl$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~$RM $lib.exp' + + # Both c and cxx compiler support -rpath directly + hardcode_libdir_flag_spec='-rpath $libdir' + fi + archive_cmds_need_lc='no' + hardcode_libdir_separator=: + ;; + + solaris*) + no_undefined_flag=' -z defs' + if test yes = "$GCC"; then + wlarc='$wl' + archive_cmds='$CC -shared $pic_flag $wl-z ${wl}text $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -shared $pic_flag $wl-z ${wl}text $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp' + else + case `$CC -V 2>&1` in + *"Compilers 5.0"*) + wlarc='' + archive_cmds='$LD -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $linker_flags' + archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $LD -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp' + ;; + *) + wlarc='$wl' + archive_cmds='$CC -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp' + ;; + esac + fi + hardcode_libdir_flag_spec='-R$libdir' + hardcode_shlibpath_var=no + case $host_os in + solaris2.[0-5] | solaris2.[0-5].*) ;; + *) + # The compiler driver will combine and reorder linker options, + # but understands '-z linker_flag'. GCC discards it without '$wl', + # but is careful enough not to reorder. + # Supported since Solaris 2.6 (maybe 2.5.1?) + if test yes = "$GCC"; then + whole_archive_flag_spec='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract' + else + whole_archive_flag_spec='-z allextract$convenience -z defaultextract' + fi + ;; + esac + link_all_deplibs=yes + ;; + + sunos4*) + if test sequent = "$host_vendor"; then + # Use $CC to link under sequent, because it throws in some extra .o + # files that make .init and .fini sections work. + archive_cmds='$CC -G $wl-h $soname -o $lib $libobjs $deplibs $compiler_flags' + else + archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags' + fi + hardcode_libdir_flag_spec='-L$libdir' + hardcode_direct=yes + hardcode_minus_L=yes + hardcode_shlibpath_var=no + ;; + + sysv4) + case $host_vendor in + sni) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_direct=yes # is this really true??? + ;; + siemens) + ## LD is ld it makes a PLAMLIB + ## CC just makes a GrossModule. + archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags' + reload_cmds='$CC -r -o $output$reload_objs' + hardcode_direct=no + ;; + motorola) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_direct=no #Motorola manual says yes, but my tests say they lie + ;; + esac + runpath_var='LD_RUN_PATH' + hardcode_shlibpath_var=no + ;; + + sysv4.3*) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_shlibpath_var=no + export_dynamic_flag_spec='-Bexport' + ;; + + sysv4*MP*) + if test -d /usr/nec; then + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_shlibpath_var=no + runpath_var=LD_RUN_PATH + hardcode_runpath_var=yes + ld_shlibs=yes + fi + ;; + + sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*) + no_undefined_flag='$wl-z,text' + archive_cmds_need_lc=no + hardcode_shlibpath_var=no + runpath_var='LD_RUN_PATH' + + if test yes = "$GCC"; then + archive_cmds='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + else + archive_cmds='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + fi + ;; + + sysv5* | sco3.2v5* | sco5v6*) + # Note: We CANNOT use -z defs as we might desire, because we do not + # link with -lc, and that would cause any symbols used from libc to + # always be unresolved, which means just about no library would + # ever link correctly. If we're not using GNU ld we use -z text + # though, which does catch some bad symbols but isn't as heavy-handed + # as -z defs. + no_undefined_flag='$wl-z,text' + allow_undefined_flag='$wl-z,nodefs' + archive_cmds_need_lc=no + hardcode_shlibpath_var=no + hardcode_libdir_flag_spec='$wl-R,$libdir' + hardcode_libdir_separator=':' + link_all_deplibs=yes + export_dynamic_flag_spec='$wl-Bexport' + runpath_var='LD_RUN_PATH' + + if test yes = "$GCC"; then + archive_cmds='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + else + archive_cmds='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + fi + ;; + + uts4*) + archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + hardcode_libdir_flag_spec='-L$libdir' + hardcode_shlibpath_var=no + ;; + + *) + ld_shlibs=no + ;; + esac + + if test sni = "$host_vendor"; then + case $host in + sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*) + export_dynamic_flag_spec='$wl-Blargedynsym' + ;; + esac + fi + fi + +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs" >&5 +$as_echo "$ld_shlibs" >&6; } +test no = "$ld_shlibs" && can_build_shared=no + +with_gnu_ld=$with_gnu_ld + + + + + + + + + + + + + + + +# +# Do we need to explicitly link libc? +# +case "x$archive_cmds_need_lc" in +x|xyes) + # Assume -lc should be added + archive_cmds_need_lc=yes + + if test yes,yes = "$GCC,$enable_shared"; then + case $archive_cmds in + *'~'*) + # FIXME: we may have to deal with multi-command sequences. + ;; + '$CC '*) + # Test whether the compiler implicitly links with -lc since on some + # systems, -lgcc has to come before -lc. If gcc already passes -lc + # to ld, don't add -lc before -lgcc. + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -lc should be explicitly linked in" >&5 +$as_echo_n "checking whether -lc should be explicitly linked in... " >&6; } +if ${lt_cv_archive_cmds_need_lc+:} false; then : + $as_echo_n "(cached) " >&6 +else + $RM conftest* + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } 2>conftest.err; then + soname=conftest + lib=conftest + libobjs=conftest.$ac_objext + deplibs= + wl=$lt_prog_compiler_wl + pic_flag=$lt_prog_compiler_pic + compiler_flags=-v + linker_flags=-v + verstring= + output_objdir=. + libname=conftest + lt_save_allow_undefined_flag=$allow_undefined_flag + allow_undefined_flag= + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1\""; } >&5 + (eval $archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + then + lt_cv_archive_cmds_need_lc=no + else + lt_cv_archive_cmds_need_lc=yes + fi + allow_undefined_flag=$lt_save_allow_undefined_flag + else + cat conftest.err 1>&5 + fi + $RM conftest* + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_archive_cmds_need_lc" >&5 +$as_echo "$lt_cv_archive_cmds_need_lc" >&6; } + archive_cmds_need_lc=$lt_cv_archive_cmds_need_lc + ;; + esac + fi + ;; +esac + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5 +$as_echo_n "checking dynamic linker characteristics... " >&6; } + +if test yes = "$GCC"; then + case $host_os in + darwin*) lt_awk_arg='/^libraries:/,/LR/' ;; + *) lt_awk_arg='/^libraries:/' ;; + esac + case $host_os in + mingw* | cegcc*) lt_sed_strip_eq='s|=\([A-Za-z]:\)|\1|g' ;; + *) lt_sed_strip_eq='s|=/|/|g' ;; + esac + lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq` + case $lt_search_path_spec in + *\;*) + # if the path contains ";" then we assume it to be the separator + # otherwise default to the standard path separator (i.e. ":") - it is + # assumed that no part of a normal pathname contains ";" but that should + # okay in the real world where ";" in dirpaths is itself problematic. + lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'` + ;; + *) + lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"` + ;; + esac + # Ok, now we have the path, separated by spaces, we can step through it + # and add multilib dir if necessary... + lt_tmp_lt_search_path_spec= + lt_multi_os_dir=/`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null` + # ...but if some path component already ends with the multilib dir we assume + # that all is fine and trust -print-search-dirs as is (GCC 4.2? or newer). + case "$lt_multi_os_dir; $lt_search_path_spec " in + "/; "* | "/.; "* | "/./; "* | *"$lt_multi_os_dir "* | *"$lt_multi_os_dir/ "*) + lt_multi_os_dir= + ;; + esac + for lt_sys_path in $lt_search_path_spec; do + if test -d "$lt_sys_path$lt_multi_os_dir"; then + lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path$lt_multi_os_dir" + elif test -n "$lt_multi_os_dir"; then + test -d "$lt_sys_path" && \ + lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path" + fi + done + lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk ' +BEGIN {RS = " "; FS = "/|\n";} { + lt_foo = ""; + lt_count = 0; + for (lt_i = NF; lt_i > 0; lt_i--) { + if ($lt_i != "" && $lt_i != ".") { + if ($lt_i == "..") { + lt_count++; + } else { + if (lt_count == 0) { + lt_foo = "/" $lt_i lt_foo; + } else { + lt_count--; + } + } + } + } + if (lt_foo != "") { lt_freq[lt_foo]++; } + if (lt_freq[lt_foo] == 1) { print lt_foo; } +}'` + # AWK program above erroneously prepends '/' to C:/dos/paths + # for these hosts. + case $host_os in + mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\ + $SED 's|/\([A-Za-z]:\)|\1|g'` ;; + esac + sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP` +else + sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib" +fi +library_names_spec= +libname_spec='lib$name' +soname_spec= +shrext_cmds=.so +postinstall_cmds= +postuninstall_cmds= +finish_cmds= +finish_eval= +shlibpath_var= +shlibpath_overrides_runpath=unknown +version_type=none +dynamic_linker="$host_os ld.so" +sys_lib_dlsearch_path_spec="/lib /usr/lib" +need_lib_prefix=unknown +hardcode_into_libs=no + +# when you set need_version to no, make sure it does not cause -set_version +# flags to be left without arguments +need_version=unknown + + + +case $host_os in +aix3*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$release$shared_ext$versuffix $libname.a' + shlibpath_var=LIBPATH + + # AIX 3 has no versioning support, so we append a major version to the name. + soname_spec='$libname$release$shared_ext$major' + ;; + +aix[4-9]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + hardcode_into_libs=yes + if test ia64 = "$host_cpu"; then + # AIX 5 supports IA64 + library_names_spec='$libname$release$shared_ext$major $libname$release$shared_ext$versuffix $libname$shared_ext' + shlibpath_var=LD_LIBRARY_PATH + else + # With GCC up to 2.95.x, collect2 would create an import file + # for dependence libraries. The import file would start with + # the line '#! .'. This would cause the generated library to + # depend on '.', always an invalid library. This was fixed in + # development snapshots of GCC prior to 3.0. + case $host_os in + aix4 | aix4.[01] | aix4.[01].*) + if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)' + echo ' yes ' + echo '#endif'; } | $CC -E - | $GREP yes > /dev/null; then + : + else + can_build_shared=no + fi + ;; + esac + # Using Import Files as archive members, it is possible to support + # filename-based versioning of shared library archives on AIX. While + # this would work for both with and without runtime linking, it will + # prevent static linking of such archives. So we do filename-based + # shared library versioning with .so extension only, which is used + # when both runtime linking and shared linking is enabled. + # Unfortunately, runtime linking may impact performance, so we do + # not want this to be the default eventually. Also, we use the + # versioned .so libs for executables only if there is the -brtl + # linker flag in LDFLAGS as well, or --with-aix-soname=svr4 only. + # To allow for filename-based versioning support, we need to create + # libNAME.so.V as an archive file, containing: + # *) an Import File, referring to the versioned filename of the + # archive as well as the shared archive member, telling the + # bitwidth (32 or 64) of that shared object, and providing the + # list of exported symbols of that shared object, eventually + # decorated with the 'weak' keyword + # *) the shared object with the F_LOADONLY flag set, to really avoid + # it being seen by the linker. + # At run time we better use the real file rather than another symlink, + # but for link time we create the symlink libNAME.so -> libNAME.so.V + + case $with_aix_soname,$aix_use_runtimelinking in + # AIX (on Power*) has no versioning support, so currently we cannot hardcode correct + # soname into executable. Probably we can add versioning support to + # collect2, so additional links can be useful in future. + aix,yes) # traditional libtool + dynamic_linker='AIX unversionable lib.so' + # If using run time linking (on AIX 4.2 or later) use lib.so + # instead of lib.a to let people know that these are not + # typical AIX shared libraries. + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + ;; + aix,no) # traditional AIX only + dynamic_linker='AIX lib.a(lib.so.V)' + # We preserve .a as extension for shared libraries through AIX4.2 + # and later when we are not doing run time linking. + library_names_spec='$libname$release.a $libname.a' + soname_spec='$libname$release$shared_ext$major' + ;; + svr4,*) # full svr4 only + dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o)" + library_names_spec='$libname$release$shared_ext$major $libname$shared_ext' + # We do not specify a path in Import Files, so LIBPATH fires. + shlibpath_overrides_runpath=yes + ;; + *,yes) # both, prefer svr4 + dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o), lib.a(lib.so.V)" + library_names_spec='$libname$release$shared_ext$major $libname$shared_ext' + # unpreferred sharedlib libNAME.a needs extra handling + postinstall_cmds='test -n "$linkname" || linkname="$realname"~func_stripname "" ".so" "$linkname"~$install_shared_prog "$dir/$func_stripname_result.$libext" "$destdir/$func_stripname_result.$libext"~test -z "$tstripme" || test -z "$striplib" || $striplib "$destdir/$func_stripname_result.$libext"' + postuninstall_cmds='for n in $library_names $old_library; do :; done~func_stripname "" ".so" "$n"~test "$func_stripname_result" = "$n" || func_append rmfiles " $odir/$func_stripname_result.$libext"' + # We do not specify a path in Import Files, so LIBPATH fires. + shlibpath_overrides_runpath=yes + ;; + *,no) # both, prefer aix + dynamic_linker="AIX lib.a(lib.so.V), lib.so.V($shared_archive_member_spec.o)" + library_names_spec='$libname$release.a $libname.a' + soname_spec='$libname$release$shared_ext$major' + # unpreferred sharedlib libNAME.so.V and symlink libNAME.so need extra handling + postinstall_cmds='test -z "$dlname" || $install_shared_prog $dir/$dlname $destdir/$dlname~test -z "$tstripme" || test -z "$striplib" || $striplib $destdir/$dlname~test -n "$linkname" || linkname=$realname~func_stripname "" ".a" "$linkname"~(cd "$destdir" && $LN_S -f $dlname $func_stripname_result.so)' + postuninstall_cmds='test -z "$dlname" || func_append rmfiles " $odir/$dlname"~for n in $old_library $library_names; do :; done~func_stripname "" ".a" "$n"~func_append rmfiles " $odir/$func_stripname_result.so"' + ;; + esac + shlibpath_var=LIBPATH + fi + ;; + +amigaos*) + case $host_cpu in + powerpc) + # Since July 2007 AmigaOS4 officially supports .so libraries. + # When compiling the executable, add -use-dynld -Lsobjs: to the compileline. + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + ;; + m68k) + library_names_spec='$libname.ixlibrary $libname.a' + # Create ${libname}_ixlibrary.a entries in /sys/libs. + finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done' + ;; + esac + ;; + +beos*) + library_names_spec='$libname$shared_ext' + dynamic_linker="$host_os ld.so" + shlibpath_var=LIBRARY_PATH + ;; + +bsdi[45]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir' + shlibpath_var=LD_LIBRARY_PATH + sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib" + sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib" + # the default ld.so.conf also contains /usr/contrib/lib and + # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow + # libtool to hard-code these into programs + ;; + +cygwin* | mingw* | pw32* | cegcc*) + version_type=windows + shrext_cmds=.dll + need_version=no + need_lib_prefix=no + + case $GCC,$cc_basename in + yes,*) + # gcc + library_names_spec='$libname.dll.a' + # DLL is installed to $(libdir)/../bin by postinstall_cmds + postinstall_cmds='base_file=`basename \$file`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname~ + chmod a+x \$dldir/$dlname~ + if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then + eval '\''$striplib \$dldir/$dlname'\'' || exit \$?; + fi' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + shlibpath_overrides_runpath=yes + + case $host_os in + cygwin*) + # Cygwin DLLs use 'cyg' prefix rather than 'lib' + soname_spec='`echo $libname | sed -e 's/^lib/cyg/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext' + + sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api" + ;; + mingw* | cegcc*) + # MinGW DLLs use traditional 'lib' prefix + soname_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext' + ;; + pw32*) + # pw32 DLLs use 'pw' prefix rather than 'lib' + library_names_spec='`echo $libname | sed -e 's/^lib/pw/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext' + ;; + esac + dynamic_linker='Win32 ld.exe' + ;; + + *,cl*) + # Native MSVC + libname_spec='$name' + soname_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext' + library_names_spec='$libname.dll.lib' + + case $build_os in + mingw*) + sys_lib_search_path_spec= + lt_save_ifs=$IFS + IFS=';' + for lt_path in $LIB + do + IFS=$lt_save_ifs + # Let DOS variable expansion print the short 8.3 style file name. + lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"` + sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path" + done + IFS=$lt_save_ifs + # Convert to MSYS style. + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([a-zA-Z]\\):| /\\1|g' -e 's|^ ||'` + ;; + cygwin*) + # Convert to unix form, then to dos form, then back to unix form + # but this time dos style (no spaces!) so that the unix form looks + # like /cygdrive/c/PROGRA~1:/cygdr... + sys_lib_search_path_spec=`cygpath --path --unix "$LIB"` + sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null` + sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"` + ;; + *) + sys_lib_search_path_spec=$LIB + if $ECHO "$sys_lib_search_path_spec" | $GREP ';[c-zC-Z]:/' >/dev/null; then + # It is most probably a Windows format PATH. + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'` + else + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"` + fi + # FIXME: find the short name or the path components, as spaces are + # common. (e.g. "Program Files" -> "PROGRA~1") + ;; + esac + + # DLL is installed to $(libdir)/../bin by postinstall_cmds + postinstall_cmds='base_file=`basename \$file`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + shlibpath_overrides_runpath=yes + dynamic_linker='Win32 link.exe' + ;; + + *) + # Assume MSVC wrapper + library_names_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext $libname.lib' + dynamic_linker='Win32 ld.exe' + ;; + esac + # FIXME: first we should search . and the directory the executable is in + shlibpath_var=PATH + ;; + +darwin* | rhapsody*) + dynamic_linker="$host_os dyld" + version_type=darwin + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$major$shared_ext $libname$shared_ext' + soname_spec='$libname$release$major$shared_ext' + shlibpath_overrides_runpath=yes + shlibpath_var=DYLD_LIBRARY_PATH + shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`' + + sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib" + sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib' + ;; + +dgux*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + ;; + +freebsd* | dragonfly*) + # DragonFly does not have aout. When/if they implement a new + # versioning mechanism, adjust this. + if test -x /usr/bin/objformat; then + objformat=`/usr/bin/objformat` + else + case $host_os in + freebsd[23].*) objformat=aout ;; + *) objformat=elf ;; + esac + fi + version_type=freebsd-$objformat + case $version_type in + freebsd-elf*) + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + need_version=no + need_lib_prefix=no + ;; + freebsd-*) + library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' + need_version=yes + ;; + esac + shlibpath_var=LD_LIBRARY_PATH + case $host_os in + freebsd2.*) + shlibpath_overrides_runpath=yes + ;; + freebsd3.[01]* | freebsdelf3.[01]*) + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + freebsd3.[2-9]* | freebsdelf3.[2-9]* | \ + freebsd4.[0-5] | freebsdelf4.[0-5] | freebsd4.1.1 | freebsdelf4.1.1) + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + *) # from 4.6 on, and DragonFly + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + esac + ;; + +haiku*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + dynamic_linker="$host_os runtime_loader" + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LIBRARY_PATH + shlibpath_overrides_runpath=no + sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib' + hardcode_into_libs=yes + ;; + +hpux9* | hpux10* | hpux11*) + # Give a soname corresponding to the major version so that dld.sl refuses to + # link against other versions. + version_type=sunos + need_lib_prefix=no + need_version=no + case $host_cpu in + ia64*) + shrext_cmds='.so' + hardcode_into_libs=yes + dynamic_linker="$host_os dld.so" + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + if test 32 = "$HPUX_IA64_MODE"; then + sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib" + sys_lib_dlsearch_path_spec=/usr/lib/hpux32 + else + sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64" + sys_lib_dlsearch_path_spec=/usr/lib/hpux64 + fi + ;; + hppa*64*) + shrext_cmds='.sl' + hardcode_into_libs=yes + dynamic_linker="$host_os dld.sl" + shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH + shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64" + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + ;; + *) + shrext_cmds='.sl' + dynamic_linker="$host_os dld.sl" + shlibpath_var=SHLIB_PATH + shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + ;; + esac + # HP-UX runs *really* slowly unless shared libraries are mode 555, ... + postinstall_cmds='chmod 555 $lib' + # or fails outright, so override atomically: + install_override_mode=555 + ;; + +interix[3-9]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + +irix5* | irix6* | nonstopux*) + case $host_os in + nonstopux*) version_type=nonstopux ;; + *) + if test yes = "$lt_cv_prog_gnu_ld"; then + version_type=linux # correct to gnu/linux during the next big refactor + else + version_type=irix + fi ;; + esac + need_lib_prefix=no + need_version=no + soname_spec='$libname$release$shared_ext$major' + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext' + case $host_os in + irix5* | nonstopux*) + libsuff= shlibsuff= + ;; + *) + case $LD in # libtool.m4 will add one of these switches to LD + *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ") + libsuff= shlibsuff= libmagic=32-bit;; + *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ") + libsuff=32 shlibsuff=N32 libmagic=N32;; + *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ") + libsuff=64 shlibsuff=64 libmagic=64-bit;; + *) libsuff= shlibsuff= libmagic=never-match;; + esac + ;; + esac + shlibpath_var=LD_LIBRARY${shlibsuff}_PATH + shlibpath_overrides_runpath=no + sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff" + sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff" + hardcode_into_libs=yes + ;; + +# No shared lib support for Linux oldld, aout, or coff. +linux*oldld* | linux*aout* | linux*coff*) + dynamic_linker=no + ;; + +linux*android*) + version_type=none # Android doesn't support versioned libraries. + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext' + soname_spec='$libname$release$shared_ext' + finish_cmds= + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + + # This implies no fast_install, which is unacceptable. + # Some rework will be needed to allow for fast_install + # before this can be enabled. + hardcode_into_libs=yes + + dynamic_linker='Android linker' + # Don't embed -rpath directories since the linker doesn't support them. + hardcode_libdir_flag_spec='-L$libdir' + ;; + +# This must be glibc/ELF. +linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + + # Some binutils ld are patched to set DT_RUNPATH + if ${lt_cv_shlibpath_overrides_runpath+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_shlibpath_overrides_runpath=no + save_LDFLAGS=$LDFLAGS + save_libdir=$libdir + eval "libdir=/foo; wl=\"$lt_prog_compiler_wl\"; \ + LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec\"" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + if ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null; then : + lt_cv_shlibpath_overrides_runpath=yes +fi +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + LDFLAGS=$save_LDFLAGS + libdir=$save_libdir + +fi + + shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath + + # This implies no fast_install, which is unacceptable. + # Some rework will be needed to allow for fast_install + # before this can be enabled. + hardcode_into_libs=yes + + # Add ABI-specific directories to the system library path. + sys_lib_dlsearch_path_spec="/lib64 /usr/lib64 /lib /usr/lib" + + # Ideally, we could use ldconfig to report *all* directores which are + # searched for libraries, however this is still not possible. Aside from not + # being certain /sbin/ldconfig is available, command + # 'ldconfig -N -X -v | grep ^/' on 64bit Fedora does not report /usr/lib64, + # even though it is searched at run-time. Try to do the best guess by + # appending ld.so.conf contents (and includes) to the search path. + if test -f /etc/ld.so.conf; then + lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[ ]*hwcap[ ]/d;s/[:, ]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '` + sys_lib_dlsearch_path_spec="$sys_lib_dlsearch_path_spec $lt_ld_extra" + fi + + # We used to test for /lib/ld.so.1 and disable shared libraries on + # powerpc, because MkLinux only supported shared libraries with the + # GNU dynamic linker. Since this was broken with cross compilers, + # most powerpc-linux boxes support dynamic linking these days and + # people can always --disable-shared, the test was removed, and we + # assume the GNU/Linux dynamic linker is in use. + dynamic_linker='GNU/Linux ld.so' + ;; + +netbsd*) + version_type=sunos + need_lib_prefix=no + need_version=no + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' + dynamic_linker='NetBSD (a.out) ld.so' + else + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + dynamic_linker='NetBSD ld.elf_so' + fi + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + +newsos6) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + ;; + +*nto* | *qnx*) + version_type=qnx + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + dynamic_linker='ldqnx.so' + ;; + +openbsd* | bitrig*) + version_type=sunos + sys_lib_dlsearch_path_spec=/usr/lib + need_lib_prefix=no + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then + need_version=no + else + need_version=yes + fi + library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + ;; + +os2*) + libname_spec='$name' + version_type=windows + shrext_cmds=.dll + need_version=no + need_lib_prefix=no + # OS/2 can only load a DLL with a base name of 8 characters or less. + soname_spec='`test -n "$os2dllname" && libname="$os2dllname"; + v=$($ECHO $release$versuffix | tr -d .-); + n=$($ECHO $libname | cut -b -$((8 - ${#v})) | tr . _); + $ECHO $n$v`$shared_ext' + library_names_spec='${libname}_dll.$libext' + dynamic_linker='OS/2 ld.exe' + shlibpath_var=BEGINLIBPATH + sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib" + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + postinstall_cmds='base_file=`basename \$file`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; $ECHO \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname~ + chmod a+x \$dldir/$dlname~ + if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then + eval '\''$striplib \$dldir/$dlname'\'' || exit \$?; + fi' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; $ECHO \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + ;; + +osf3* | osf4* | osf5*) + version_type=osf + need_lib_prefix=no + need_version=no + soname_spec='$libname$release$shared_ext$major' + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + shlibpath_var=LD_LIBRARY_PATH + sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib" + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + ;; + +rdos*) + dynamic_linker=no + ;; + +solaris*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + # ldd complains unless libraries are executable + postinstall_cmds='chmod +x $lib' + ;; + +sunos4*) + version_type=sunos + library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' + finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + if test yes = "$with_gnu_ld"; then + need_lib_prefix=no + fi + need_version=yes + ;; + +sysv4 | sysv4.3*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + case $host_vendor in + sni) + shlibpath_overrides_runpath=no + need_lib_prefix=no + runpath_var=LD_RUN_PATH + ;; + siemens) + need_lib_prefix=no + ;; + motorola) + need_lib_prefix=no + need_version=no + shlibpath_overrides_runpath=no + sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib' + ;; + esac + ;; + +sysv4*MP*) + if test -d /usr/nec; then + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$shared_ext.$versuffix $libname$shared_ext.$major $libname$shared_ext' + soname_spec='$libname$shared_ext.$major' + shlibpath_var=LD_LIBRARY_PATH + fi + ;; + +sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) + version_type=sco + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + if test yes = "$with_gnu_ld"; then + sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib' + else + sys_lib_search_path_spec='/usr/ccs/lib /usr/lib' + case $host_os in + sco3.2v5*) + sys_lib_search_path_spec="$sys_lib_search_path_spec /lib" + ;; + esac + fi + sys_lib_dlsearch_path_spec='/usr/lib' + ;; + +tpf*) + # TPF is a cross-target only. Preferred cross-host = GNU/Linux. + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + +uts4*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + ;; + +*) + dynamic_linker=no + ;; +esac +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5 +$as_echo "$dynamic_linker" >&6; } +test no = "$dynamic_linker" && can_build_shared=no + +variables_saved_for_relink="PATH $shlibpath_var $runpath_var" +if test yes = "$GCC"; then + variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH" +fi + +if test set = "${lt_cv_sys_lib_search_path_spec+set}"; then + sys_lib_search_path_spec=$lt_cv_sys_lib_search_path_spec +fi + +if test set = "${lt_cv_sys_lib_dlsearch_path_spec+set}"; then + sys_lib_dlsearch_path_spec=$lt_cv_sys_lib_dlsearch_path_spec +fi + +# remember unaugmented sys_lib_dlsearch_path content for libtool script decls... +configure_time_dlsearch_path=$sys_lib_dlsearch_path_spec + +# ... but it needs LT_SYS_LIBRARY_PATH munging for other configure-time code +func_munge_path_list sys_lib_dlsearch_path_spec "$LT_SYS_LIBRARY_PATH" + +# to be used as default LT_SYS_LIBRARY_PATH value in generated libtool +configure_time_lt_sys_library_path=$LT_SYS_LIBRARY_PATH + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5 +$as_echo_n "checking how to hardcode library paths into programs... " >&6; } +hardcode_action= +if test -n "$hardcode_libdir_flag_spec" || + test -n "$runpath_var" || + test yes = "$hardcode_automatic"; then + + # We can hardcode non-existent directories. + if test no != "$hardcode_direct" && + # If the only mechanism to avoid hardcoding is shlibpath_var, we + # have to relink, otherwise we might link with an installed library + # when we should be linking with a yet-to-be-installed one + ## test no != "$_LT_TAGVAR(hardcode_shlibpath_var, )" && + test no != "$hardcode_minus_L"; then + # Linking always hardcodes the temporary library directory. + hardcode_action=relink + else + # We can link without hardcoding, and we can hardcode nonexisting dirs. + hardcode_action=immediate + fi +else + # We cannot hardcode anything, or else we can only hardcode existing + # directories. + hardcode_action=unsupported +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $hardcode_action" >&5 +$as_echo "$hardcode_action" >&6; } + +if test relink = "$hardcode_action" || + test yes = "$inherit_rpath"; then + # Fast installation is not supported + enable_fast_install=no +elif test yes = "$shlibpath_overrides_runpath" || + test no = "$enable_shared"; then + # Fast installation is not necessary + enable_fast_install=needless +fi + + + + + + + if test yes != "$enable_dlopen"; then + enable_dlopen=unknown + enable_dlopen_self=unknown + enable_dlopen_self_static=unknown +else + lt_cv_dlopen=no + lt_cv_dlopen_libs= + + case $host_os in + beos*) + lt_cv_dlopen=load_add_on + lt_cv_dlopen_libs= + lt_cv_dlopen_self=yes + ;; + + mingw* | pw32* | cegcc*) + lt_cv_dlopen=LoadLibrary + lt_cv_dlopen_libs= + ;; + + cygwin*) + lt_cv_dlopen=dlopen + lt_cv_dlopen_libs= + ;; + + darwin*) + # if libdl is installed we need to link against it + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5 +$as_echo_n "checking for dlopen in -ldl... " >&6; } +if ${ac_cv_lib_dl_dlopen+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-ldl $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char dlopen (); +int +main () +{ +return dlopen (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_dl_dlopen=yes +else + ac_cv_lib_dl_dlopen=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5 +$as_echo "$ac_cv_lib_dl_dlopen" >&6; } +if test "x$ac_cv_lib_dl_dlopen" = xyes; then : + lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl +else + + lt_cv_dlopen=dyld + lt_cv_dlopen_libs= + lt_cv_dlopen_self=yes + +fi + + ;; + + tpf*) + # Don't try to run any link tests for TPF. We know it's impossible + # because TPF is a cross-compiler, and we know how we open DSOs. + lt_cv_dlopen=dlopen + lt_cv_dlopen_libs= + lt_cv_dlopen_self=no + ;; + + *) + ac_fn_c_check_func "$LINENO" "shl_load" "ac_cv_func_shl_load" +if test "x$ac_cv_func_shl_load" = xyes; then : + lt_cv_dlopen=shl_load +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for shl_load in -ldld" >&5 +$as_echo_n "checking for shl_load in -ldld... " >&6; } +if ${ac_cv_lib_dld_shl_load+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-ldld $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char shl_load (); +int +main () +{ +return shl_load (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_dld_shl_load=yes +else + ac_cv_lib_dld_shl_load=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_shl_load" >&5 +$as_echo "$ac_cv_lib_dld_shl_load" >&6; } +if test "x$ac_cv_lib_dld_shl_load" = xyes; then : + lt_cv_dlopen=shl_load lt_cv_dlopen_libs=-ldld +else + ac_fn_c_check_func "$LINENO" "dlopen" "ac_cv_func_dlopen" +if test "x$ac_cv_func_dlopen" = xyes; then : + lt_cv_dlopen=dlopen +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5 +$as_echo_n "checking for dlopen in -ldl... " >&6; } +if ${ac_cv_lib_dl_dlopen+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-ldl $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char dlopen (); +int +main () +{ +return dlopen (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_dl_dlopen=yes +else + ac_cv_lib_dl_dlopen=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5 +$as_echo "$ac_cv_lib_dl_dlopen" >&6; } +if test "x$ac_cv_lib_dl_dlopen" = xyes; then : + lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -lsvld" >&5 +$as_echo_n "checking for dlopen in -lsvld... " >&6; } +if ${ac_cv_lib_svld_dlopen+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-lsvld $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char dlopen (); +int +main () +{ +return dlopen (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_svld_dlopen=yes +else + ac_cv_lib_svld_dlopen=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_svld_dlopen" >&5 +$as_echo "$ac_cv_lib_svld_dlopen" >&6; } +if test "x$ac_cv_lib_svld_dlopen" = xyes; then : + lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-lsvld +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dld_link in -ldld" >&5 +$as_echo_n "checking for dld_link in -ldld... " >&6; } +if ${ac_cv_lib_dld_dld_link+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-ldld $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char dld_link (); +int +main () +{ +return dld_link (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_dld_dld_link=yes +else + ac_cv_lib_dld_dld_link=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_dld_link" >&5 +$as_echo "$ac_cv_lib_dld_dld_link" >&6; } +if test "x$ac_cv_lib_dld_dld_link" = xyes; then : + lt_cv_dlopen=dld_link lt_cv_dlopen_libs=-ldld +fi + + +fi + + +fi + + +fi + + +fi + + +fi + + ;; + esac + + if test no = "$lt_cv_dlopen"; then + enable_dlopen=no + else + enable_dlopen=yes + fi + + case $lt_cv_dlopen in + dlopen) + save_CPPFLAGS=$CPPFLAGS + test yes = "$ac_cv_header_dlfcn_h" && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H" + + save_LDFLAGS=$LDFLAGS + wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\" + + save_LIBS=$LIBS + LIBS="$lt_cv_dlopen_libs $LIBS" + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a program can dlopen itself" >&5 +$as_echo_n "checking whether a program can dlopen itself... " >&6; } +if ${lt_cv_dlopen_self+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test yes = "$cross_compiling"; then : + lt_cv_dlopen_self=cross +else + lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 + lt_status=$lt_dlunknown + cat > conftest.$ac_ext <<_LT_EOF +#line $LINENO "configure" +#include "confdefs.h" + +#if HAVE_DLFCN_H +#include +#endif + +#include + +#ifdef RTLD_GLOBAL +# define LT_DLGLOBAL RTLD_GLOBAL +#else +# ifdef DL_GLOBAL +# define LT_DLGLOBAL DL_GLOBAL +# else +# define LT_DLGLOBAL 0 +# endif +#endif + +/* We may have to define LT_DLLAZY_OR_NOW in the command line if we + find out it does not work in some platform. */ +#ifndef LT_DLLAZY_OR_NOW +# ifdef RTLD_LAZY +# define LT_DLLAZY_OR_NOW RTLD_LAZY +# else +# ifdef DL_LAZY +# define LT_DLLAZY_OR_NOW DL_LAZY +# else +# ifdef RTLD_NOW +# define LT_DLLAZY_OR_NOW RTLD_NOW +# else +# ifdef DL_NOW +# define LT_DLLAZY_OR_NOW DL_NOW +# else +# define LT_DLLAZY_OR_NOW 0 +# endif +# endif +# endif +# endif +#endif + +/* When -fvisibility=hidden is used, assume the code has been annotated + correspondingly for the symbols needed. */ +#if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3)) +int fnord () __attribute__((visibility("default"))); +#endif + +int fnord () { return 42; } +int main () +{ + void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW); + int status = $lt_dlunknown; + + if (self) + { + if (dlsym (self,"fnord")) status = $lt_dlno_uscore; + else + { + if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore; + else puts (dlerror ()); + } + /* dlclose (self); */ + } + else + puts (dlerror ()); + + return status; +} +_LT_EOF + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5 + (eval $ac_link) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && test -s "conftest$ac_exeext" 2>/dev/null; then + (./conftest; exit; ) >&5 2>/dev/null + lt_status=$? + case x$lt_status in + x$lt_dlno_uscore) lt_cv_dlopen_self=yes ;; + x$lt_dlneed_uscore) lt_cv_dlopen_self=yes ;; + x$lt_dlunknown|x*) lt_cv_dlopen_self=no ;; + esac + else : + # compilation failed + lt_cv_dlopen_self=no + fi +fi +rm -fr conftest* + + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self" >&5 +$as_echo "$lt_cv_dlopen_self" >&6; } + + if test yes = "$lt_cv_dlopen_self"; then + wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\" + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a statically linked program can dlopen itself" >&5 +$as_echo_n "checking whether a statically linked program can dlopen itself... " >&6; } +if ${lt_cv_dlopen_self_static+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test yes = "$cross_compiling"; then : + lt_cv_dlopen_self_static=cross +else + lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 + lt_status=$lt_dlunknown + cat > conftest.$ac_ext <<_LT_EOF +#line $LINENO "configure" +#include "confdefs.h" + +#if HAVE_DLFCN_H +#include +#endif + +#include + +#ifdef RTLD_GLOBAL +# define LT_DLGLOBAL RTLD_GLOBAL +#else +# ifdef DL_GLOBAL +# define LT_DLGLOBAL DL_GLOBAL +# else +# define LT_DLGLOBAL 0 +# endif +#endif + +/* We may have to define LT_DLLAZY_OR_NOW in the command line if we + find out it does not work in some platform. */ +#ifndef LT_DLLAZY_OR_NOW +# ifdef RTLD_LAZY +# define LT_DLLAZY_OR_NOW RTLD_LAZY +# else +# ifdef DL_LAZY +# define LT_DLLAZY_OR_NOW DL_LAZY +# else +# ifdef RTLD_NOW +# define LT_DLLAZY_OR_NOW RTLD_NOW +# else +# ifdef DL_NOW +# define LT_DLLAZY_OR_NOW DL_NOW +# else +# define LT_DLLAZY_OR_NOW 0 +# endif +# endif +# endif +# endif +#endif + +/* When -fvisibility=hidden is used, assume the code has been annotated + correspondingly for the symbols needed. */ +#if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3)) +int fnord () __attribute__((visibility("default"))); +#endif + +int fnord () { return 42; } +int main () +{ + void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW); + int status = $lt_dlunknown; + + if (self) + { + if (dlsym (self,"fnord")) status = $lt_dlno_uscore; + else + { + if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore; + else puts (dlerror ()); + } + /* dlclose (self); */ + } + else + puts (dlerror ()); + + return status; +} +_LT_EOF + if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5 + (eval $ac_link) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && test -s "conftest$ac_exeext" 2>/dev/null; then + (./conftest; exit; ) >&5 2>/dev/null + lt_status=$? + case x$lt_status in + x$lt_dlno_uscore) lt_cv_dlopen_self_static=yes ;; + x$lt_dlneed_uscore) lt_cv_dlopen_self_static=yes ;; + x$lt_dlunknown|x*) lt_cv_dlopen_self_static=no ;; + esac + else : + # compilation failed + lt_cv_dlopen_self_static=no + fi +fi +rm -fr conftest* + + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self_static" >&5 +$as_echo "$lt_cv_dlopen_self_static" >&6; } + fi + + CPPFLAGS=$save_CPPFLAGS + LDFLAGS=$save_LDFLAGS + LIBS=$save_LIBS + ;; + esac + + case $lt_cv_dlopen_self in + yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;; + *) enable_dlopen_self=unknown ;; + esac + + case $lt_cv_dlopen_self_static in + yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;; + *) enable_dlopen_self_static=unknown ;; + esac +fi + + + + + + + + + + + + + + + + + +striplib= +old_striplib= +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether stripping libraries is possible" >&5 +$as_echo_n "checking whether stripping libraries is possible... " >&6; } +if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then + test -z "$old_striplib" && old_striplib="$STRIP --strip-debug" + test -z "$striplib" && striplib="$STRIP --strip-unneeded" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +else +# FIXME - insert some real tests, host_os isn't really good enough + case $host_os in + darwin*) + if test -n "$STRIP"; then + striplib="$STRIP -x" + old_striplib="$STRIP -S" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + fi + ;; + *) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + ;; + esac +fi + + + + + + + + + + + + + # Report what library types will actually be built + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if libtool supports shared libraries" >&5 +$as_echo_n "checking if libtool supports shared libraries... " >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $can_build_shared" >&5 +$as_echo "$can_build_shared" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build shared libraries" >&5 +$as_echo_n "checking whether to build shared libraries... " >&6; } + test no = "$can_build_shared" && enable_shared=no + + # On AIX, shared libraries and static libraries use the same namespace, and + # are all built from PIC. + case $host_os in + aix3*) + test yes = "$enable_shared" && enable_static=no + if test -n "$RANLIB"; then + archive_cmds="$archive_cmds~\$RANLIB \$lib" + postinstall_cmds='$RANLIB $lib' + fi + ;; + + aix[4-9]*) + if test ia64 != "$host_cpu"; then + case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in + yes,aix,yes) ;; # shared object as lib.so file only + yes,svr4,*) ;; # shared object as lib.so archive member only + yes,*) enable_static=no ;; # shared object in lib.a archive as well + esac + fi + ;; + esac + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_shared" >&5 +$as_echo "$enable_shared" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build static libraries" >&5 +$as_echo_n "checking whether to build static libraries... " >&6; } + # Make sure either enable_shared or enable_static is yes. + test yes = "$enable_shared" || enable_static=yes + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_static" >&5 +$as_echo "$enable_static" >&6; } + + + + +fi +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +CC=$lt_save_CC + + + + + + + + + + + + + + + + ac_config_commands="$ac_config_commands libtool" + + + + +# Only expand once: + + + + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a sed that does not truncate output" >&5 +$as_echo_n "checking for a sed that does not truncate output... " >&6; } +if ${ac_cv_path_SED+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/ + for ac_i in 1 2 3 4 5 6 7; do + ac_script="$ac_script$as_nl$ac_script" + done + echo "$ac_script" 2>/dev/null | sed 99q >conftest.sed + { ac_script=; unset ac_script;} + if test -z "$SED"; then + ac_path_SED_found=false + # Loop through the user's path and test for each of PROGNAME-LIST + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in sed gsed; do + for ac_exec_ext in '' $ac_executable_extensions; do + ac_path_SED="$as_dir/$ac_prog$ac_exec_ext" + as_fn_executable_p "$ac_path_SED" || continue +# Check for GNU ac_path_SED and select it if it is found. + # Check for GNU $ac_path_SED +case `"$ac_path_SED" --version 2>&1` in +*GNU*) + ac_cv_path_SED="$ac_path_SED" ac_path_SED_found=:;; +*) + ac_count=0 + $as_echo_n 0123456789 >"conftest.in" + while : + do + cat "conftest.in" "conftest.in" >"conftest.tmp" + mv "conftest.tmp" "conftest.in" + cp "conftest.in" "conftest.nl" + $as_echo '' >> "conftest.nl" + "$ac_path_SED" -f conftest.sed < "conftest.nl" >"conftest.out" 2>/dev/null || break + diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break + as_fn_arith $ac_count + 1 && ac_count=$as_val + if test $ac_count -gt ${ac_path_SED_max-0}; then + # Best one so far, save it but keep looking for a better one + ac_cv_path_SED="$ac_path_SED" + ac_path_SED_max=$ac_count + fi + # 10*(2^10) chars as input seems more than enough + test $ac_count -gt 10 && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out;; +esac + + $ac_path_SED_found && break 3 + done + done + done +IFS=$as_save_IFS + if test -z "$ac_cv_path_SED"; then + as_fn_error $? "no acceptable sed could be found in \$PATH" "$LINENO" 5 + fi +else + ac_cv_path_SED=$SED +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5 +$as_echo "$ac_cv_path_SED" >&6; } + SED="$ac_cv_path_SED" + rm -f conftest.sed + + + case $ac_cv_prog_cc_stdc in #( + no) : + ac_cv_prog_cc_c99=no; ac_cv_prog_cc_c89=no ;; #( + *) : + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C99" >&5 +$as_echo_n "checking for $CC option to accept ISO C99... " >&6; } +if ${ac_cv_prog_cc_c99+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_cv_prog_cc_c99=no +ac_save_CC=$CC +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +#include +#include +#include +#include + +// Check varargs macros. These examples are taken from C99 6.10.3.5. +#define debug(...) fprintf (stderr, __VA_ARGS__) +#define showlist(...) puts (#__VA_ARGS__) +#define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__)) +static void +test_varargs_macros (void) +{ + int x = 1234; + int y = 5678; + debug ("Flag"); + debug ("X = %d\n", x); + showlist (The first, second, and third items.); + report (x>y, "x is %d but y is %d", x, y); +} + +// Check long long types. +#define BIG64 18446744073709551615ull +#define BIG32 4294967295ul +#define BIG_OK (BIG64 / BIG32 == 4294967297ull && BIG64 % BIG32 == 0) +#if !BIG_OK + your preprocessor is broken; +#endif +#if BIG_OK +#else + your preprocessor is broken; +#endif +static long long int bignum = -9223372036854775807LL; +static unsigned long long int ubignum = BIG64; + +struct incomplete_array +{ + int datasize; + double data[]; +}; + +struct named_init { + int number; + const wchar_t *name; + double average; +}; + +typedef const char *ccp; + +static inline int +test_restrict (ccp restrict text) +{ + // See if C++-style comments work. + // Iterate through items via the restricted pointer. + // Also check for declarations in for loops. + for (unsigned int i = 0; *(text+i) != '\0'; ++i) + continue; + return 0; +} + +// Check varargs and va_copy. +static void +test_varargs (const char *format, ...) +{ + va_list args; + va_start (args, format); + va_list args_copy; + va_copy (args_copy, args); + + const char *str; + int number; + float fnumber; + + while (*format) + { + switch (*format++) + { + case 's': // string + str = va_arg (args_copy, const char *); + break; + case 'd': // int + number = va_arg (args_copy, int); + break; + case 'f': // float + fnumber = va_arg (args_copy, double); + break; + default: + break; + } + } + va_end (args_copy); + va_end (args); +} + +int +main () +{ + + // Check bool. + _Bool success = false; + + // Check restrict. + if (test_restrict ("String literal") == 0) + success = true; + char *restrict newvar = "Another string"; + + // Check varargs. + test_varargs ("s, d' f .", "string", 65, 34.234); + test_varargs_macros (); + + // Check flexible array members. + struct incomplete_array *ia = + malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10)); + ia->datasize = 10; + for (int i = 0; i < ia->datasize; ++i) + ia->data[i] = i * 1.234; + + // Check named initializers. + struct named_init ni = { + .number = 34, + .name = L"Test wide string", + .average = 543.34343, + }; + + ni.number = 58; + + int dynamic_array[ni.number]; + dynamic_array[ni.number - 1] = 543; + + // work around unused variable warnings + return (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == 'x' + || dynamic_array[ni.number - 1] != 543); + + ; + return 0; +} +_ACEOF +for ac_arg in '' -std=gnu99 -std=c99 -c99 -AC99 -D_STDC_C99= -qlanglvl=extc99 +do + CC="$ac_save_CC $ac_arg" + if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_prog_cc_c99=$ac_arg +fi +rm -f core conftest.err conftest.$ac_objext + test "x$ac_cv_prog_cc_c99" != "xno" && break +done +rm -f conftest.$ac_ext +CC=$ac_save_CC + +fi +# AC_CACHE_VAL +case "x$ac_cv_prog_cc_c99" in + x) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5 +$as_echo "none needed" >&6; } ;; + xno) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5 +$as_echo "unsupported" >&6; } ;; + *) + CC="$CC $ac_cv_prog_cc_c99" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5 +$as_echo "$ac_cv_prog_cc_c99" >&6; } ;; +esac +if test "x$ac_cv_prog_cc_c99" != xno; then : + ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c99 +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5 +$as_echo_n "checking for $CC option to accept ISO C89... " >&6; } +if ${ac_cv_prog_cc_c89+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_cv_prog_cc_c89=no +ac_save_CC=$CC +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +#include +struct stat; +/* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */ +struct buf { int x; }; +FILE * (*rcsopen) (struct buf *, struct stat *, int); +static char *e (p, i) + char **p; + int i; +{ + return p[i]; +} +static char *f (char * (*g) (char **, int), char **p, ...) +{ + char *s; + va_list v; + va_start (v,p); + s = g (p, va_arg (v,int)); + va_end (v); + return s; +} + +/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has + function prototypes and stuff, but not '\xHH' hex character constants. + These don't provoke an error unfortunately, instead are silently treated + as 'x'. The following induces an error, until -std is added to get + proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an + array size at least. It's necessary to write '\x00'==0 to get something + that's true only with -std. */ +int osf4_cc_array ['\x00' == 0 ? 1 : -1]; + +/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters + inside strings and character constants. */ +#define FOO(x) 'x' +int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1]; + +int test (int i, double x); +struct s1 {int (*f) (int a);}; +struct s2 {int (*f) (double a);}; +int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int); +int argc; +char **argv; +int +main () +{ +return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]; + ; + return 0; +} +_ACEOF +for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \ + -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__" +do + CC="$ac_save_CC $ac_arg" + if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_prog_cc_c89=$ac_arg +fi +rm -f core conftest.err conftest.$ac_objext + test "x$ac_cv_prog_cc_c89" != "xno" && break +done +rm -f conftest.$ac_ext +CC=$ac_save_CC + +fi +# AC_CACHE_VAL +case "x$ac_cv_prog_cc_c89" in + x) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5 +$as_echo "none needed" >&6; } ;; + xno) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5 +$as_echo "unsupported" >&6; } ;; + *) + CC="$CC $ac_cv_prog_cc_c89" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5 +$as_echo "$ac_cv_prog_cc_c89" >&6; } ;; +esac +if test "x$ac_cv_prog_cc_c89" != xno; then : + ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c89 +else + ac_cv_prog_cc_stdc=no +fi + +fi + ;; +esac + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO Standard C" >&5 +$as_echo_n "checking for $CC option to accept ISO Standard C... " >&6; } + if ${ac_cv_prog_cc_stdc+:} false; then : + $as_echo_n "(cached) " >&6 +fi + + case $ac_cv_prog_cc_stdc in #( + no) : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5 +$as_echo "unsupported" >&6; } ;; #( + '') : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5 +$as_echo "none needed" >&6; } ;; #( + *) : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_stdc" >&5 +$as_echo "$ac_cv_prog_cc_stdc" >&6; } ;; +esac + + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5 +$as_echo_n "checking how to run the C preprocessor... " >&6; } +# On Suns, sometimes $CPP names a directory. +if test -n "$CPP" && test -d "$CPP"; then + CPP= +fi +if test -z "$CPP"; then + if ${ac_cv_prog_CPP+:} false; then : + $as_echo_n "(cached) " >&6 +else + # Double quotes because CPP needs to be expanded + for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp" + do + ac_preproc_ok=false +for ac_c_preproc_warn_flag in '' yes +do + # Use a header file that comes with gcc, so configuring glibc + # with a fresh cross-compiler works. + # Prefer to if __STDC__ is defined, since + # exists even on freestanding compilers. + # On the NeXT, cc -E runs the code through the compiler's parser, + # not just through cpp. "Syntax error" is here to catch this case. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#ifdef __STDC__ +# include +#else +# include +#endif + Syntax error +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + +else + # Broken: fails on valid input. +continue +fi +rm -f conftest.err conftest.i conftest.$ac_ext + + # OK, works on sane cases. Now check whether nonexistent headers + # can be detected and how. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + # Broken: success on invalid input. +continue +else + # Passes both tests. +ac_preproc_ok=: +break +fi +rm -f conftest.err conftest.i conftest.$ac_ext + +done +# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. +rm -f conftest.i conftest.err conftest.$ac_ext +if $ac_preproc_ok; then : + break +fi + + done + ac_cv_prog_CPP=$CPP + +fi + CPP=$ac_cv_prog_CPP +else + ac_cv_prog_CPP=$CPP +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5 +$as_echo "$CPP" >&6; } +ac_preproc_ok=false +for ac_c_preproc_warn_flag in '' yes +do + # Use a header file that comes with gcc, so configuring glibc + # with a fresh cross-compiler works. + # Prefer to if __STDC__ is defined, since + # exists even on freestanding compilers. + # On the NeXT, cc -E runs the code through the compiler's parser, + # not just through cpp. "Syntax error" is here to catch this case. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#ifdef __STDC__ +# include +#else +# include +#endif + Syntax error +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + +else + # Broken: fails on valid input. +continue +fi +rm -f conftest.err conftest.i conftest.$ac_ext + + # OK, works on sane cases. Now check whether nonexistent headers + # can be detected and how. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + # Broken: success on invalid input. +continue +else + # Passes both tests. +ac_preproc_ok=: +break +fi +rm -f conftest.err conftest.i conftest.$ac_ext + +done +# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. +rm -f conftest.i conftest.err conftest.$ac_ext +if $ac_preproc_ok; then : + +else + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? 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Some variables (like enable_shared) +# are currently assumed to apply to all compilers on this platform, +# and will be corrupted by setting them based on a non-working compiler. +if test yes != "$_lt_caught_CXX_error"; then + # Code to be used in simple compile tests + lt_simple_compile_test_code="int some_variable = 0;" + + # Code to be used in simple link tests + lt_simple_link_test_code='int main(int, char *[]) { return(0); }' + + # ltmain only uses $CC for tagged configurations so make sure $CC is set. + + + + + + +# If no C compiler was specified, use CC. +LTCC=${LTCC-"$CC"} + +# If no C compiler flags were specified, use CFLAGS. +LTCFLAGS=${LTCFLAGS-"$CFLAGS"} + +# Allow CC to be a program name with arguments. +compiler=$CC + + + # save warnings/boilerplate of simple test code + ac_outfile=conftest.$ac_objext +echo "$lt_simple_compile_test_code" >conftest.$ac_ext +eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err +_lt_compiler_boilerplate=`cat conftest.err` +$RM conftest* + + ac_outfile=conftest.$ac_objext +echo "$lt_simple_link_test_code" >conftest.$ac_ext +eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err +_lt_linker_boilerplate=`cat conftest.err` +$RM -r conftest* + + + # Allow CC to be a program name with arguments. + lt_save_CC=$CC + lt_save_CFLAGS=$CFLAGS + lt_save_LD=$LD + lt_save_GCC=$GCC + GCC=$GXX + lt_save_with_gnu_ld=$with_gnu_ld + lt_save_path_LD=$lt_cv_path_LD + if test -n "${lt_cv_prog_gnu_ldcxx+set}"; then + lt_cv_prog_gnu_ld=$lt_cv_prog_gnu_ldcxx + else + $as_unset lt_cv_prog_gnu_ld + fi + if test -n "${lt_cv_path_LDCXX+set}"; then + lt_cv_path_LD=$lt_cv_path_LDCXX + else + $as_unset lt_cv_path_LD + fi + test -z "${LDCXX+set}" || LD=$LDCXX + CC=${CXX-"c++"} + CFLAGS=$CXXFLAGS + compiler=$CC + compiler_CXX=$CC + func_cc_basename $compiler +cc_basename=$func_cc_basename_result + + + if test -n "$compiler"; then + # We don't want -fno-exception when compiling C++ code, so set the + # no_builtin_flag separately + if test yes = "$GXX"; then + lt_prog_compiler_no_builtin_flag_CXX=' -fno-builtin' + else + lt_prog_compiler_no_builtin_flag_CXX= + fi + + if test yes = "$GXX"; then + # Set up default GNU C++ configuration + + + +# Check whether --with-gnu-ld was given. +if test "${with_gnu_ld+set}" = set; then : + withval=$with_gnu_ld; test no = "$withval" || with_gnu_ld=yes +else + with_gnu_ld=no +fi + +ac_prog=ld +if test yes = "$GCC"; then + # Check if gcc -print-prog-name=ld gives a path. + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5 +$as_echo_n "checking for ld used by $CC... 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" >&6; } +if ${lt_cv_prog_gnu_ld+:} false; then : + $as_echo_n "(cached) " >&6 +else + # I'd rather use --version here, but apparently some GNU lds only accept -v. +case `$LD -v 2>&1 &5 +$as_echo "$lt_cv_prog_gnu_ld" >&6; } +with_gnu_ld=$lt_cv_prog_gnu_ld + + + + + + + + # Check if GNU C++ uses GNU ld as the underlying linker, since the + # archiving commands below assume that GNU ld is being used. + if test yes = "$with_gnu_ld"; then + archive_cmds_CXX='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' + archive_expsym_cmds_CXX='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + + hardcode_libdir_flag_spec_CXX='$wl-rpath $wl$libdir' + export_dynamic_flag_spec_CXX='$wl--export-dynamic' + + # If archive_cmds runs LD, not CC, wlarc should be empty + # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to + # investigate it a little bit more. (MM) + wlarc='$wl' + + # ancient GNU ld didn't support --whole-archive et. al. + if eval "`$CC -print-prog-name=ld` --help 2>&1" | + $GREP 'no-whole-archive' > /dev/null; then + whole_archive_flag_spec_CXX=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive' + else + whole_archive_flag_spec_CXX= + fi + else + with_gnu_ld=no + wlarc= + + # A generic and very simple default shared library creation + # command for GNU C++ for the case where it uses the native + # linker, instead of GNU ld. If possible, this setting should + # overridden to take advantage of the native linker features on + # the platform it is being used on. + archive_cmds_CXX='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib' + fi + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"' + + else + GXX=no + with_gnu_ld=no + wlarc= + fi + + # PORTME: fill in a description of your system's C++ link characteristics + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5 +$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... 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If -brtl is somewhere in LDFLAGS, we + # have runtime linking enabled, and use it for executables. + # For shared libraries, we enable/disable runtime linking + # depending on the kind of the shared library created - + # when "with_aix_soname,aix_use_runtimelinking" is: + # "aix,no" lib.a(lib.so.V) shared, rtl:no, for executables + # "aix,yes" lib.so shared, rtl:yes, for executables + # lib.a static archive + # "both,no" lib.so.V(shr.o) shared, rtl:yes + # lib.a(lib.so.V) shared, rtl:no, for executables + # "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables + # lib.a(lib.so.V) shared, rtl:no + # "svr4,*" lib.so.V(shr.o) shared, rtl:yes, for executables + # lib.a static archive + case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*) + for ld_flag in $LDFLAGS; do + case $ld_flag in + *-brtl*) + aix_use_runtimelinking=yes + break + ;; + esac + done + if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then + # With aix-soname=svr4, we create the lib.so.V shared archives only, + # so we don't have lib.a shared libs to link our executables. + # We have to force runtime linking in this case. + aix_use_runtimelinking=yes + LDFLAGS="$LDFLAGS -Wl,-brtl" + fi + ;; + esac + + exp_sym_flag='-bexport' + no_entry_flag='-bnoentry' + fi + + # When large executables or shared objects are built, AIX ld can + # have problems creating the table of contents. If linking a library + # or program results in "error TOC overflow" add -mminimal-toc to + # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not + # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS. + + archive_cmds_CXX='' + hardcode_direct_CXX=yes + hardcode_direct_absolute_CXX=yes + hardcode_libdir_separator_CXX=':' + link_all_deplibs_CXX=yes + file_list_spec_CXX='$wl-f,' + case $with_aix_soname,$aix_use_runtimelinking in + aix,*) ;; # no import file + svr4,* | *,yes) # use import file + # The Import File defines what to hardcode. + hardcode_direct_CXX=no + hardcode_direct_absolute_CXX=no + ;; + esac + + if test yes = "$GXX"; then + case $host_os in aix4.[012]|aix4.[012].*) + # We only want to do this on AIX 4.2 and lower, the check + # below for broken collect2 doesn't work under 4.3+ + collect2name=`$CC -print-prog-name=collect2` + if test -f "$collect2name" && + strings "$collect2name" | $GREP resolve_lib_name >/dev/null + then + # We have reworked collect2 + : + else + # We have old collect2 + hardcode_direct_CXX=unsupported + # It fails to find uninstalled libraries when the uninstalled + # path is not listed in the libpath. Setting hardcode_minus_L + # to unsupported forces relinking + hardcode_minus_L_CXX=yes + hardcode_libdir_flag_spec_CXX='-L$libdir' + hardcode_libdir_separator_CXX= + fi + esac + shared_flag='-shared' + if test yes = "$aix_use_runtimelinking"; then + shared_flag=$shared_flag' $wl-G' + fi + # Need to ensure runtime linking is disabled for the traditional + # shared library, or the linker may eventually find shared libraries + # /with/ Import File - we do not want to mix them. + shared_flag_aix='-shared' + shared_flag_svr4='-shared $wl-G' + else + # not using gcc + if test ia64 = "$host_cpu"; then + # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release + # chokes on -Wl,-G. The following line is correct: + shared_flag='-G' + else + if test yes = "$aix_use_runtimelinking"; then + shared_flag='$wl-G' + else + shared_flag='$wl-bM:SRE' + fi + shared_flag_aix='$wl-bM:SRE' + shared_flag_svr4='$wl-G' + fi + fi + + export_dynamic_flag_spec_CXX='$wl-bexpall' + # It seems that -bexpall does not export symbols beginning with + # underscore (_), so it is better to generate a list of symbols to + # export. + always_export_symbols_CXX=yes + if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then + # Warning - without using the other runtime loading flags (-brtl), + # -berok will link without error, but may produce a broken library. + # The "-G" linker flag allows undefined symbols. + no_undefined_flag_CXX='-bernotok' + # Determine the default libpath from the value encoded in an empty + # executable. + if test set = "${lt_cv_aix_libpath+set}"; then + aix_libpath=$lt_cv_aix_libpath +else + if ${lt_cv_aix_libpath__CXX+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_link "$LINENO"; then : + + lt_aix_libpath_sed=' + /Import File Strings/,/^$/ { + /^0/ { + s/^0 *\([^ ]*\) *$/\1/ + p + } + }' + lt_cv_aix_libpath__CXX=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + # Check for a 64-bit object if we didn't find anything. + if test -z "$lt_cv_aix_libpath__CXX"; then + lt_cv_aix_libpath__CXX=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + fi +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + if test -z "$lt_cv_aix_libpath__CXX"; then + lt_cv_aix_libpath__CXX=/usr/lib:/lib + fi + +fi + + aix_libpath=$lt_cv_aix_libpath__CXX +fi + + hardcode_libdir_flag_spec_CXX='$wl-blibpath:$libdir:'"$aix_libpath" + + archive_expsym_cmds_CXX='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag + else + if test ia64 = "$host_cpu"; then + hardcode_libdir_flag_spec_CXX='$wl-R $libdir:/usr/lib:/lib' + allow_undefined_flag_CXX="-z nodefs" + archive_expsym_cmds_CXX="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols" + else + # Determine the default libpath from the value encoded in an + # empty executable. + if test set = "${lt_cv_aix_libpath+set}"; then + aix_libpath=$lt_cv_aix_libpath +else + if ${lt_cv_aix_libpath__CXX+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_link "$LINENO"; then : + + lt_aix_libpath_sed=' + /Import File Strings/,/^$/ { + /^0/ { + s/^0 *\([^ ]*\) *$/\1/ + p + } + }' + lt_cv_aix_libpath__CXX=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + # Check for a 64-bit object if we didn't find anything. + if test -z "$lt_cv_aix_libpath__CXX"; then + lt_cv_aix_libpath__CXX=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + fi +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + if test -z "$lt_cv_aix_libpath__CXX"; then + lt_cv_aix_libpath__CXX=/usr/lib:/lib + fi + +fi + + aix_libpath=$lt_cv_aix_libpath__CXX +fi + + hardcode_libdir_flag_spec_CXX='$wl-blibpath:$libdir:'"$aix_libpath" + # Warning - without using the other run time loading flags, + # -berok will link without error, but may produce a broken library. + no_undefined_flag_CXX=' $wl-bernotok' + allow_undefined_flag_CXX=' $wl-berok' + if test yes = "$with_gnu_ld"; then + # We only use this code for GNU lds that support --whole-archive. + whole_archive_flag_spec_CXX='$wl--whole-archive$convenience $wl--no-whole-archive' + else + # Exported symbols can be pulled into shared objects from archives + whole_archive_flag_spec_CXX='$convenience' + fi + archive_cmds_need_lc_CXX=yes + archive_expsym_cmds_CXX='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d' + # -brtl affects multiple linker settings, -berok does not and is overridden later + compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([, ]\\)%-berok\\1%g"`' + if test svr4 != "$with_aix_soname"; then + # This is similar to how AIX traditionally builds its shared + # libraries. Need -bnortl late, we may have -brtl in LDFLAGS. + archive_expsym_cmds_CXX="$archive_expsym_cmds_CXX"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname' + fi + if test aix != "$with_aix_soname"; then + archive_expsym_cmds_CXX="$archive_expsym_cmds_CXX"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp' + else + # used by -dlpreopen to get the symbols + archive_expsym_cmds_CXX="$archive_expsym_cmds_CXX"'~$MV $output_objdir/$realname.d/$soname $output_objdir' + fi + archive_expsym_cmds_CXX="$archive_expsym_cmds_CXX"'~$RM -r $output_objdir/$realname.d' + fi + fi + ;; + + beos*) + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + allow_undefined_flag_CXX=unsupported + # Joseph Beckenbach says some releases of gcc + # support --undefined. This deserves some investigation. FIXME + archive_cmds_CXX='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + else + ld_shlibs_CXX=no + fi + ;; + + chorus*) + case $cc_basename in + *) + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + esac + ;; + + cygwin* | mingw* | pw32* | cegcc*) + case $GXX,$cc_basename in + ,cl* | no,cl*) + # Native MSVC + # hardcode_libdir_flag_spec is actually meaningless, as there is + # no search path for DLLs. + hardcode_libdir_flag_spec_CXX=' ' + allow_undefined_flag_CXX=unsupported + always_export_symbols_CXX=yes + file_list_spec_CXX='@' + # Tell ltmain to make .lib files, not .a files. + libext=lib + # Tell ltmain to make .dll files, not .so files. + shrext_cmds=.dll + # FIXME: Setting linknames here is a bad hack. + archive_cmds_CXX='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames=' + archive_expsym_cmds_CXX='if test DEF = "`$SED -n -e '\''s/^[ ]*//'\'' -e '\''/^\(;.*\)*$/d'\'' -e '\''s/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p'\'' -e q $export_symbols`" ; then + cp "$export_symbols" "$output_objdir/$soname.def"; + echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp"; + else + $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp; + fi~ + $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~ + linknames=' + # The linker will not automatically build a static lib if we build a DLL. + # _LT_TAGVAR(old_archive_from_new_cmds, CXX)='true' + enable_shared_with_static_runtimes_CXX=yes + # Don't use ranlib + old_postinstall_cmds_CXX='chmod 644 $oldlib' + postlink_cmds_CXX='lt_outputfile="@OUTPUT@"~ + lt_tool_outputfile="@TOOL_OUTPUT@"~ + case $lt_outputfile in + *.exe|*.EXE) ;; + *) + lt_outputfile=$lt_outputfile.exe + lt_tool_outputfile=$lt_tool_outputfile.exe + ;; + esac~ + func_to_tool_file "$lt_outputfile"~ + if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then + $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1; + $RM "$lt_outputfile.manifest"; + fi' + ;; + *) + # g++ + # _LT_TAGVAR(hardcode_libdir_flag_spec, CXX) is actually meaningless, + # as there is no search path for DLLs. + hardcode_libdir_flag_spec_CXX='-L$libdir' + export_dynamic_flag_spec_CXX='$wl--export-all-symbols' + allow_undefined_flag_CXX=unsupported + always_export_symbols_CXX=no + enable_shared_with_static_runtimes_CXX=yes + + if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then + archive_cmds_CXX='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + # If the export-symbols file already is a .def file, use it as + # is; otherwise, prepend EXPORTS... + archive_expsym_cmds_CXX='if test DEF = "`$SED -n -e '\''s/^[ ]*//'\'' -e '\''/^\(;.*\)*$/d'\'' -e '\''s/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p'\'' -e q $export_symbols`" ; then + cp $export_symbols $output_objdir/$soname.def; + else + echo EXPORTS > $output_objdir/$soname.def; + cat $export_symbols >> $output_objdir/$soname.def; + fi~ + $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + else + ld_shlibs_CXX=no + fi + ;; + esac + ;; + darwin* | rhapsody*) + + + archive_cmds_need_lc_CXX=no + hardcode_direct_CXX=no + hardcode_automatic_CXX=yes + hardcode_shlibpath_var_CXX=unsupported + if test yes = "$lt_cv_ld_force_load"; then + whole_archive_flag_spec_CXX='`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience $wl-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`' + + else + whole_archive_flag_spec_CXX='' + fi + link_all_deplibs_CXX=yes + allow_undefined_flag_CXX=$_lt_dar_allow_undefined + case $cc_basename in + ifort*|nagfor*) _lt_dar_can_shared=yes ;; + *) _lt_dar_can_shared=$GCC ;; + esac + if test yes = "$_lt_dar_can_shared"; then + output_verbose_link_cmd=func_echo_all + archive_cmds_CXX="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dsymutil" + module_cmds_CXX="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dsymutil" + archive_expsym_cmds_CXX="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dar_export_syms$_lt_dsymutil" + module_expsym_cmds_CXX="sed -e 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dar_export_syms$_lt_dsymutil" + if test yes != "$lt_cv_apple_cc_single_mod"; then + archive_cmds_CXX="\$CC -r -keep_private_externs -nostdlib -o \$lib-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$lib-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring$_lt_dsymutil" + archive_expsym_cmds_CXX="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -r -keep_private_externs -nostdlib -o \$lib-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$lib-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring$_lt_dar_export_syms$_lt_dsymutil" + fi + + else + ld_shlibs_CXX=no + fi + + ;; + + os2*) + hardcode_libdir_flag_spec_CXX='-L$libdir' + hardcode_minus_L_CXX=yes + allow_undefined_flag_CXX=unsupported + shrext_cmds=.dll + archive_cmds_CXX='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + archive_expsym_cmds_CXX='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + prefix_cmds="$SED"~ + if test EXPORTS = "`$SED 1q $export_symbols`"; then + prefix_cmds="$prefix_cmds -e 1d"; + fi~ + prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~ + cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + old_archive_From_new_cmds_CXX='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def' + enable_shared_with_static_runtimes_CXX=yes + ;; + + dgux*) + case $cc_basename in + ec++*) + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + ghcx*) + # Green Hills C++ Compiler + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + *) + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + esac + ;; + + freebsd2.*) + # C++ shared libraries reported to be fairly broken before + # switch to ELF + ld_shlibs_CXX=no + ;; + + freebsd-elf*) + archive_cmds_need_lc_CXX=no + ;; + + freebsd* | dragonfly*) + # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF + # conventions + ld_shlibs_CXX=yes + ;; + + haiku*) + archive_cmds_CXX='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + link_all_deplibs_CXX=yes + ;; + + hpux9*) + hardcode_libdir_flag_spec_CXX='$wl+b $wl$libdir' + hardcode_libdir_separator_CXX=: + export_dynamic_flag_spec_CXX='$wl-E' + hardcode_direct_CXX=yes + hardcode_minus_L_CXX=yes # Not in the search PATH, + # but as the default + # location of the library. + + case $cc_basename in + CC*) + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + aCC*) + archive_cmds_CXX='$RM $output_objdir/$soname~$CC -b $wl+b $wl$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib' + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP "\-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"' + ;; + *) + if test yes = "$GXX"; then + archive_cmds_CXX='$RM $output_objdir/$soname~$CC -shared -nostdlib $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib' + else + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + fi + ;; + esac + ;; + + hpux10*|hpux11*) + if test no = "$with_gnu_ld"; then + hardcode_libdir_flag_spec_CXX='$wl+b $wl$libdir' + hardcode_libdir_separator_CXX=: + + case $host_cpu in + hppa*64*|ia64*) + ;; + *) + export_dynamic_flag_spec_CXX='$wl-E' + ;; + esac + fi + case $host_cpu in + hppa*64*|ia64*) + hardcode_direct_CXX=no + hardcode_shlibpath_var_CXX=no + ;; + *) + hardcode_direct_CXX=yes + hardcode_direct_absolute_CXX=yes + hardcode_minus_L_CXX=yes # Not in the search PATH, + # but as the default + # location of the library. + ;; + esac + + case $cc_basename in + CC*) + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + aCC*) + case $host_cpu in + hppa*64*) + archive_cmds_CXX='$CC -b $wl+h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + ia64*) + archive_cmds_CXX='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + *) + archive_cmds_CXX='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + esac + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP "\-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"' + ;; + *) + if test yes = "$GXX"; then + if test no = "$with_gnu_ld"; then + case $host_cpu in + hppa*64*) + archive_cmds_CXX='$CC -shared -nostdlib -fPIC $wl+h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + ia64*) + archive_cmds_CXX='$CC -shared -nostdlib $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + *) + archive_cmds_CXX='$CC -shared -nostdlib $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + esac + fi + else + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + fi + ;; + esac + ;; + + interix[3-9]*) + hardcode_direct_CXX=no + hardcode_shlibpath_var_CXX=no + hardcode_libdir_flag_spec_CXX='$wl-rpath,$libdir' + export_dynamic_flag_spec_CXX='$wl-E' + # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc. + # Instead, shared libraries are loaded at an image base (0x10000000 by + # default) and relocated if they conflict, which is a slow very memory + # consuming and fragmenting process. To avoid this, we pick a random, + # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link + # time. Moving up from 0x10000000 also allows more sbrk(2) space. + archive_cmds_CXX='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + archive_expsym_cmds_CXX='sed "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + ;; + irix5* | irix6*) + case $cc_basename in + CC*) + # SGI C++ + archive_cmds_CXX='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' + + # Archives containing C++ object files must be created using + # "CC -ar", where "CC" is the IRIX C++ compiler. This is + # necessary to make sure instantiated templates are included + # in the archive. + old_archive_cmds_CXX='$CC -ar -WR,-u -o $oldlib $oldobjs' + ;; + *) + if test yes = "$GXX"; then + if test no = "$with_gnu_ld"; then + archive_cmds_CXX='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' + else + archive_cmds_CXX='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` -o $lib' + fi + fi + link_all_deplibs_CXX=yes + ;; + esac + hardcode_libdir_flag_spec_CXX='$wl-rpath $wl$libdir' + hardcode_libdir_separator_CXX=: + inherit_rpath_CXX=yes + ;; + + linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + case $cc_basename in + KCC*) + # Kuck and Associates, Inc. (KAI) C++ Compiler + + # KCC will only create a shared library if the output file + # ends with ".so" (or ".sl" for HP-UX), so rename the library + # to its proper name (with version) after linking. + archive_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib' + archive_expsym_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib $wl-retain-symbols-file,$export_symbols; mv \$templib $lib' + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; 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+ *) # Version 6 and above use weak symbols + archive_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' + archive_expsym_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + ;; + esac + + hardcode_libdir_flag_spec_CXX='$wl--rpath $wl$libdir' + export_dynamic_flag_spec_CXX='$wl--export-dynamic' + whole_archive_flag_spec_CXX='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + ;; + cxx*) + # Compaq C++ + archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' + archive_expsym_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib $wl-retain-symbols-file $wl$export_symbols' + + runpath_var=LD_RUN_PATH + hardcode_libdir_flag_spec_CXX='-rpath $libdir' + hardcode_libdir_separator_CXX=: + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "X$list" | $Xsed' + ;; + xl* | mpixl* | bgxl*) + # IBM XL 8.0 on PPC, with GNU ld + hardcode_libdir_flag_spec_CXX='$wl-rpath $wl$libdir' + export_dynamic_flag_spec_CXX='$wl--export-dynamic' + archive_cmds_CXX='$CC -qmkshrobj $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + if test yes = "$supports_anon_versioning"; then + archive_expsym_cmds_CXX='echo "{ global:" > $output_objdir/$libname.ver~ + cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~ + echo "local: *; };" >> $output_objdir/$libname.ver~ + $CC -qmkshrobj $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib' + fi + ;; + *) + case `$CC -V 2>&1 | sed 5q` in + *Sun\ C*) + # Sun C++ 5.9 + no_undefined_flag_CXX=' -zdefs' + archive_cmds_CXX='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + archive_expsym_cmds_CXX='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file $wl$export_symbols' + hardcode_libdir_flag_spec_CXX='-R$libdir' + whole_archive_flag_spec_CXX='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + compiler_needs_object_CXX=yes + + # Not sure whether something based on + # $CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 + # would be better. + output_verbose_link_cmd='func_echo_all' + + # Archives containing C++ object files must be created using + # "CC -xar", where "CC" is the Sun C++ compiler. This is + # necessary to make sure instantiated templates are included + # in the archive. + old_archive_cmds_CXX='$CC -xar -o $oldlib $oldobjs' + ;; + esac + ;; + esac + ;; + + lynxos*) + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + + m88k*) + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + + mvs*) + case $cc_basename in + cxx*) + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + *) + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + esac + ;; + + netbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + archive_cmds_CXX='$LD -Bshareable -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags' + wlarc= + hardcode_libdir_flag_spec_CXX='-R$libdir' + hardcode_direct_CXX=yes + hardcode_shlibpath_var_CXX=no + fi + # Workaround some broken pre-1.5 toolchains + output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP conftest.$objext | $SED -e "s:-lgcc -lc -lgcc::"' + ;; + + *nto* | *qnx*) + ld_shlibs_CXX=yes + ;; + + openbsd* | bitrig*) + if test -f /usr/libexec/ld.so; then + hardcode_direct_CXX=yes + hardcode_shlibpath_var_CXX=no + hardcode_direct_absolute_CXX=yes + archive_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib' + hardcode_libdir_flag_spec_CXX='$wl-rpath,$libdir' + if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`"; then + archive_expsym_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file,$export_symbols -o $lib' + export_dynamic_flag_spec_CXX='$wl-E' + whole_archive_flag_spec_CXX=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive' + fi + output_verbose_link_cmd=func_echo_all + else + ld_shlibs_CXX=no + fi + ;; + + osf3* | osf4* | osf5*) + case $cc_basename in + KCC*) + # Kuck and Associates, Inc. (KAI) C++ Compiler + + # KCC will only create a shared library if the output file + # ends with ".so" (or ".sl" for HP-UX), so rename the library + # to its proper name (with version) after linking. + archive_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo "$lib" | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib' + + hardcode_libdir_flag_spec_CXX='$wl-rpath,$libdir' + hardcode_libdir_separator_CXX=: + + # Archives containing C++ object files must be created using + # the KAI C++ compiler. + case $host in + osf3*) old_archive_cmds_CXX='$CC -Bstatic -o $oldlib $oldobjs' ;; + *) old_archive_cmds_CXX='$CC -o $oldlib $oldobjs' ;; + esac + ;; + RCC*) + # Rational C++ 2.4.1 + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + cxx*) + case $host in + osf3*) + allow_undefined_flag_CXX=' $wl-expect_unresolved $wl\*' + archive_cmds_CXX='$CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $soname `test -n "$verstring" && func_echo_all "$wl-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' + hardcode_libdir_flag_spec_CXX='$wl-rpath $wl$libdir' + ;; 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+ esac + ;; + + psos*) + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + + sunos4*) + case $cc_basename in + CC*) + # Sun C++ 4.x + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + lcc*) + # Lucid + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + *) + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + esac + ;; + + solaris*) + case $cc_basename in + CC* | sunCC*) + # Sun C++ 4.2, 5.x and Centerline C++ + archive_cmds_need_lc_CXX=yes + no_undefined_flag_CXX=' -zdefs' + archive_cmds_CXX='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + archive_expsym_cmds_CXX='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -G$allow_undefined_flag $wl-M $wl$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp' + + hardcode_libdir_flag_spec_CXX='-R$libdir' + hardcode_shlibpath_var_CXX=no + case $host_os in + solaris2.[0-5] | solaris2.[0-5].*) ;; + *) + # The compiler driver will combine and reorder linker options, + # but understands '-z linker_flag'. + # Supported since Solaris 2.6 (maybe 2.5.1?) + whole_archive_flag_spec_CXX='-z allextract$convenience -z defaultextract' + ;; + esac + link_all_deplibs_CXX=yes + + output_verbose_link_cmd='func_echo_all' + + # Archives containing C++ object files must be created using + # "CC -xar", where "CC" is the Sun C++ compiler. This is + # necessary to make sure instantiated templates are included + # in the archive. + old_archive_cmds_CXX='$CC -xar -o $oldlib $oldobjs' + ;; + gcx*) + # Green Hills C++ Compiler + archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib' + + # The C++ compiler must be used to create the archive. + old_archive_cmds_CXX='$CC $LDFLAGS -archive -o $oldlib $oldobjs' + ;; + *) + # GNU C++ compiler with Solaris linker + if test yes,no = "$GXX,$with_gnu_ld"; then + no_undefined_flag_CXX=' $wl-z ${wl}defs' + if $CC --version | $GREP -v '^2\.7' > /dev/null; then + archive_cmds_CXX='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib' + archive_expsym_cmds_CXX='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -shared $pic_flag -nostdlib $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp' + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"' + else + # g++ 2.7 appears to require '-G' NOT '-shared' on this + # platform. + archive_cmds_CXX='$CC -G -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib' + archive_expsym_cmds_CXX='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -G -nostdlib $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp' + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"' + fi + + hardcode_libdir_flag_spec_CXX='$wl-R $wl$libdir' + case $host_os in + solaris2.[0-5] | solaris2.[0-5].*) ;; + *) + whole_archive_flag_spec_CXX='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract' + ;; + esac + fi + ;; + esac + ;; + + sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*) + no_undefined_flag_CXX='$wl-z,text' + archive_cmds_need_lc_CXX=no + hardcode_shlibpath_var_CXX=no + runpath_var='LD_RUN_PATH' + + case $cc_basename in + CC*) + archive_cmds_CXX='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds_CXX='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + *) + archive_cmds_CXX='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds_CXX='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + esac + ;; + + sysv5* | sco3.2v5* | sco5v6*) + # Note: We CANNOT use -z defs as we might desire, because we do not + # link with -lc, and that would cause any symbols used from libc to + # always be unresolved, which means just about no library would + # ever link correctly. If we're not using GNU ld we use -z text + # though, which does catch some bad symbols but isn't as heavy-handed + # as -z defs. + no_undefined_flag_CXX='$wl-z,text' + allow_undefined_flag_CXX='$wl-z,nodefs' + archive_cmds_need_lc_CXX=no + hardcode_shlibpath_var_CXX=no + hardcode_libdir_flag_spec_CXX='$wl-R,$libdir' + hardcode_libdir_separator_CXX=':' + link_all_deplibs_CXX=yes + export_dynamic_flag_spec_CXX='$wl-Bexport' + runpath_var='LD_RUN_PATH' + + case $cc_basename in + CC*) + archive_cmds_CXX='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds_CXX='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + old_archive_cmds_CXX='$CC -Tprelink_objects $oldobjs~ + '"$old_archive_cmds_CXX" + reload_cmds_CXX='$CC -Tprelink_objects $reload_objs~ + '"$reload_cmds_CXX" + ;; + *) + archive_cmds_CXX='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + archive_expsym_cmds_CXX='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + esac + ;; + + tandem*) + case $cc_basename in + NCC*) + # NonStop-UX NCC 3.20 + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + *) + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + esac + ;; + + vxworks*) + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + + *) + # FIXME: insert proper C++ library support + ld_shlibs_CXX=no + ;; + esac + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs_CXX" >&5 +$as_echo "$ld_shlibs_CXX" >&6; } + test no = "$ld_shlibs_CXX" && can_build_shared=no + + GCC_CXX=$GXX + LD_CXX=$LD + + ## CAVEAT EMPTOR: + ## There is no encapsulation within the following macros, do not change + ## the running order or otherwise move them around unless you know exactly + ## what you are doing... + # Dependencies to place before and after the object being linked: +predep_objects_CXX= +postdep_objects_CXX= +predeps_CXX= +postdeps_CXX= +compiler_lib_search_path_CXX= + +cat > conftest.$ac_ext <<_LT_EOF +class Foo +{ +public: + Foo (void) { a = 0; } +private: + int a; +}; +_LT_EOF + + +_lt_libdeps_save_CFLAGS=$CFLAGS +case "$CC $CFLAGS " in #( +*\ -flto*\ *) CFLAGS="$CFLAGS -fno-lto" ;; +*\ -fwhopr*\ *) CFLAGS="$CFLAGS -fno-whopr" ;; +*\ -fuse-linker-plugin*\ *) CFLAGS="$CFLAGS -fno-use-linker-plugin" ;; +esac + +if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + # Parse the compiler output and extract the necessary + # objects, libraries and library flags. + + # Sentinel used to keep track of whether or not we are before + # the conftest object file. + pre_test_object_deps_done=no + + for p in `eval "$output_verbose_link_cmd"`; do + case $prev$p in + + -L* | -R* | -l*) + # Some compilers place space between "-{L,R}" and the path. + # Remove the space. + if test x-L = "$p" || + test x-R = "$p"; then + prev=$p + continue + fi + + # Expand the sysroot to ease extracting the directories later. + if test -z "$prev"; then + case $p in + -L*) func_stripname_cnf '-L' '' "$p"; prev=-L; p=$func_stripname_result ;; + -R*) func_stripname_cnf '-R' '' "$p"; prev=-R; p=$func_stripname_result ;; + -l*) func_stripname_cnf '-l' '' "$p"; prev=-l; p=$func_stripname_result ;; + esac + fi + case $p in + =*) func_stripname_cnf '=' '' "$p"; p=$lt_sysroot$func_stripname_result ;; + esac + if test no = "$pre_test_object_deps_done"; then + case $prev in + -L | -R) + # Internal compiler library paths should come after those + # provided the user. The postdeps already come after the + # user supplied libs so there is no need to process them. + if test -z "$compiler_lib_search_path_CXX"; then + compiler_lib_search_path_CXX=$prev$p + else + compiler_lib_search_path_CXX="${compiler_lib_search_path_CXX} $prev$p" + fi + ;; + # The "-l" case would never come before the object being + # linked, so don't bother handling this case. + esac + else + if test -z "$postdeps_CXX"; then + postdeps_CXX=$prev$p + else + postdeps_CXX="${postdeps_CXX} $prev$p" + fi + fi + prev= + ;; + + *.lto.$objext) ;; # Ignore GCC LTO objects + *.$objext) + # This assumes that the test object file only shows up + # once in the compiler output. + if test "$p" = "conftest.$objext"; then + pre_test_object_deps_done=yes + continue + fi + + if test no = "$pre_test_object_deps_done"; then + if test -z "$predep_objects_CXX"; then + predep_objects_CXX=$p + else + predep_objects_CXX="$predep_objects_CXX $p" + fi + else + if test -z "$postdep_objects_CXX"; then + postdep_objects_CXX=$p + else + postdep_objects_CXX="$postdep_objects_CXX $p" + fi + fi + ;; + + *) ;; # Ignore the rest. + + esac + done + + # Clean up. + rm -f a.out a.exe +else + echo "libtool.m4: error: problem compiling CXX test program" +fi + +$RM -f confest.$objext +CFLAGS=$_lt_libdeps_save_CFLAGS + +# PORTME: override above test on systems where it is broken +case $host_os in +interix[3-9]*) + # Interix 3.5 installs completely hosed .la files for C++, so rather than + # hack all around it, let's just trust "g++" to DTRT. + predep_objects_CXX= + postdep_objects_CXX= + postdeps_CXX= + ;; +esac + + +case " $postdeps_CXX " in +*" -lc "*) archive_cmds_need_lc_CXX=no ;; +esac + compiler_lib_search_dirs_CXX= +if test -n "${compiler_lib_search_path_CXX}"; then + compiler_lib_search_dirs_CXX=`echo " ${compiler_lib_search_path_CXX}" | $SED -e 's! -L! !g' -e 's!^ !!'` +fi + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + lt_prog_compiler_wl_CXX= +lt_prog_compiler_pic_CXX= +lt_prog_compiler_static_CXX= + + + # C++ specific cases for pic, static, wl, etc. + if test yes = "$GXX"; then + lt_prog_compiler_wl_CXX='-Wl,' + lt_prog_compiler_static_CXX='-static' + + case $host_os in + aix*) + # All AIX code is PIC. + if test ia64 = "$host_cpu"; then + # AIX 5 now supports IA64 processor + lt_prog_compiler_static_CXX='-Bstatic' + fi + lt_prog_compiler_pic_CXX='-fPIC' + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + lt_prog_compiler_pic_CXX='-fPIC' + ;; + m68k) + # FIXME: we need at least 68020 code to build shared libraries, but + # adding the '-m68020' flag to GCC prevents building anything better, + # like '-m68040'. + lt_prog_compiler_pic_CXX='-m68020 -resident32 -malways-restore-a4' + ;; + esac + ;; + + beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*) + # PIC is the default for these OSes. + ;; + mingw* | cygwin* | os2* | pw32* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + # Although the cygwin gcc ignores -fPIC, still need this for old-style + # (--disable-auto-import) libraries + lt_prog_compiler_pic_CXX='-DDLL_EXPORT' + case $host_os in + os2*) + lt_prog_compiler_static_CXX='$wl-static' + ;; + esac + ;; + darwin* | rhapsody*) + # PIC is the default on this platform + # Common symbols not allowed in MH_DYLIB files + lt_prog_compiler_pic_CXX='-fno-common' + ;; + *djgpp*) + # DJGPP does not support shared libraries at all + lt_prog_compiler_pic_CXX= + ;; + haiku*) + # PIC is the default for Haiku. + # The "-static" flag exists, but is broken. + lt_prog_compiler_static_CXX= + ;; + interix[3-9]*) + # Interix 3.x gcc -fpic/-fPIC options generate broken code. + # Instead, we relocate shared libraries at runtime. + ;; + sysv4*MP*) + if test -d /usr/nec; then + lt_prog_compiler_pic_CXX=-Kconform_pic + fi + ;; + hpux*) + # PIC is the default for 64-bit PA HP-UX, but not for 32-bit + # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag + # sets the default TLS model and affects inlining. + case $host_cpu in + hppa*64*) + ;; + *) + lt_prog_compiler_pic_CXX='-fPIC' + ;; + esac + ;; + *qnx* | *nto*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + lt_prog_compiler_pic_CXX='-fPIC -shared' + ;; + *) + lt_prog_compiler_pic_CXX='-fPIC' + ;; + esac + else + case $host_os in + aix[4-9]*) + # All AIX code is PIC. + if test ia64 = "$host_cpu"; then + # AIX 5 now supports IA64 processor + lt_prog_compiler_static_CXX='-Bstatic' + else + lt_prog_compiler_static_CXX='-bnso -bI:/lib/syscalls.exp' + fi + ;; + chorus*) + case $cc_basename in + cxch68*) + # Green Hills C++ Compiler + # _LT_TAGVAR(lt_prog_compiler_static, CXX)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a" + ;; + esac + ;; + mingw* | cygwin* | os2* | pw32* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + lt_prog_compiler_pic_CXX='-DDLL_EXPORT' + ;; + dgux*) + case $cc_basename in + ec++*) + lt_prog_compiler_pic_CXX='-KPIC' + ;; + ghcx*) + # Green Hills C++ Compiler + lt_prog_compiler_pic_CXX='-pic' + ;; + *) + ;; + esac + ;; + freebsd* | dragonfly*) + # FreeBSD uses GNU C++ + ;; + hpux9* | hpux10* | hpux11*) + case $cc_basename in + CC*) + lt_prog_compiler_wl_CXX='-Wl,' + lt_prog_compiler_static_CXX='$wl-a ${wl}archive' + if test ia64 != "$host_cpu"; then + lt_prog_compiler_pic_CXX='+Z' + fi + ;; + aCC*) + lt_prog_compiler_wl_CXX='-Wl,' + lt_prog_compiler_static_CXX='$wl-a ${wl}archive' + case $host_cpu in + hppa*64*|ia64*) + # +Z the default + ;; + *) + lt_prog_compiler_pic_CXX='+Z' + ;; + esac + ;; + *) + ;; + esac + ;; + interix*) + # This is c89, which is MS Visual C++ (no shared libs) + # Anyone wants to do a port? + ;; + irix5* | irix6* | nonstopux*) + case $cc_basename in + CC*) + lt_prog_compiler_wl_CXX='-Wl,' + lt_prog_compiler_static_CXX='-non_shared' + # CC pic flag -KPIC is the default. + ;; + *) + ;; + esac + ;; + linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + case $cc_basename in + KCC*) + # KAI C++ Compiler + lt_prog_compiler_wl_CXX='--backend -Wl,' + lt_prog_compiler_pic_CXX='-fPIC' + ;; + ecpc* ) + # old Intel C++ for x86_64, which still supported -KPIC. + lt_prog_compiler_wl_CXX='-Wl,' + lt_prog_compiler_pic_CXX='-KPIC' + lt_prog_compiler_static_CXX='-static' + ;; + icpc* ) + # Intel C++, used to be incompatible with GCC. + # ICC 10 doesn't accept -KPIC any more. + lt_prog_compiler_wl_CXX='-Wl,' + lt_prog_compiler_pic_CXX='-fPIC' + lt_prog_compiler_static_CXX='-static' + ;; + pgCC* | pgcpp*) + # Portland Group C++ compiler + lt_prog_compiler_wl_CXX='-Wl,' + lt_prog_compiler_pic_CXX='-fpic' + lt_prog_compiler_static_CXX='-Bstatic' + ;; + cxx*) + # Compaq C++ + # Make sure the PIC flag is empty. It appears that all Alpha + # Linux and Compaq Tru64 Unix objects are PIC. + lt_prog_compiler_pic_CXX= + lt_prog_compiler_static_CXX='-non_shared' + ;; + xlc* | xlC* | bgxl[cC]* | mpixl[cC]*) + # IBM XL 8.0, 9.0 on PPC and BlueGene + lt_prog_compiler_wl_CXX='-Wl,' + lt_prog_compiler_pic_CXX='-qpic' + lt_prog_compiler_static_CXX='-qstaticlink' + ;; + *) + case `$CC -V 2>&1 | sed 5q` in + *Sun\ C*) + # Sun C++ 5.9 + lt_prog_compiler_pic_CXX='-KPIC' + lt_prog_compiler_static_CXX='-Bstatic' + lt_prog_compiler_wl_CXX='-Qoption ld ' + ;; + esac + ;; + esac + ;; + lynxos*) + ;; + m88k*) + ;; + mvs*) + case $cc_basename in + cxx*) + lt_prog_compiler_pic_CXX='-W c,exportall' + ;; + *) + ;; + esac + ;; + netbsd*) + ;; + *qnx* | *nto*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + lt_prog_compiler_pic_CXX='-fPIC -shared' + ;; + osf3* | osf4* | osf5*) + case $cc_basename in + KCC*) + lt_prog_compiler_wl_CXX='--backend -Wl,' + ;; + RCC*) + # Rational C++ 2.4.1 + lt_prog_compiler_pic_CXX='-pic' + ;; + cxx*) + # Digital/Compaq C++ + lt_prog_compiler_wl_CXX='-Wl,' + # Make sure the PIC flag is empty. It appears that all Alpha + # Linux and Compaq Tru64 Unix objects are PIC. + lt_prog_compiler_pic_CXX= + lt_prog_compiler_static_CXX='-non_shared' + ;; + *) + ;; + esac + ;; + psos*) + ;; + solaris*) + case $cc_basename in + CC* | sunCC*) + # Sun C++ 4.2, 5.x and Centerline C++ + lt_prog_compiler_pic_CXX='-KPIC' + lt_prog_compiler_static_CXX='-Bstatic' + lt_prog_compiler_wl_CXX='-Qoption ld ' + ;; + gcx*) + # Green Hills C++ Compiler + lt_prog_compiler_pic_CXX='-PIC' + ;; + *) + ;; + esac + ;; + sunos4*) + case $cc_basename in + CC*) + # Sun C++ 4.x + lt_prog_compiler_pic_CXX='-pic' + lt_prog_compiler_static_CXX='-Bstatic' + ;; + lcc*) + # Lucid + lt_prog_compiler_pic_CXX='-pic' + ;; + *) + ;; + esac + ;; + sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*) + case $cc_basename in + CC*) + lt_prog_compiler_wl_CXX='-Wl,' + lt_prog_compiler_pic_CXX='-KPIC' + lt_prog_compiler_static_CXX='-Bstatic' + ;; + esac + ;; + tandem*) + case $cc_basename in + NCC*) + # NonStop-UX NCC 3.20 + lt_prog_compiler_pic_CXX='-KPIC' + ;; + *) + ;; + esac + ;; + vxworks*) + ;; + *) + lt_prog_compiler_can_build_shared_CXX=no + ;; + esac + fi + +case $host_os in + # For platforms that do not support PIC, -DPIC is meaningless: + *djgpp*) + lt_prog_compiler_pic_CXX= + ;; + *) + lt_prog_compiler_pic_CXX="$lt_prog_compiler_pic_CXX -DPIC" + ;; +esac + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5 +$as_echo_n "checking for $compiler option to produce PIC... " >&6; } +if ${lt_cv_prog_compiler_pic_CXX+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_prog_compiler_pic_CXX=$lt_prog_compiler_pic_CXX +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_CXX" >&5 +$as_echo "$lt_cv_prog_compiler_pic_CXX" >&6; } +lt_prog_compiler_pic_CXX=$lt_cv_prog_compiler_pic_CXX + +# +# Check to make sure the PIC flag actually works. +# +if test -n "$lt_prog_compiler_pic_CXX"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic_CXX works" >&5 +$as_echo_n "checking if $compiler PIC flag $lt_prog_compiler_pic_CXX works... 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The import file would start with + # the line '#! .'. This would cause the generated library to + # depend on '.', always an invalid library. This was fixed in + # development snapshots of GCC prior to 3.0. + case $host_os in + aix4 | aix4.[01] | aix4.[01].*) + if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)' + echo ' yes ' + echo '#endif'; } | $CC -E - | $GREP yes > /dev/null; then + : + else + can_build_shared=no + fi + ;; + esac + # Using Import Files as archive members, it is possible to support + # filename-based versioning of shared library archives on AIX. While + # this would work for both with and without runtime linking, it will + # prevent static linking of such archives. So we do filename-based + # shared library versioning with .so extension only, which is used + # when both runtime linking and shared linking is enabled. + # Unfortunately, runtime linking may impact performance, so we do + # not want this to be the default eventually. Also, we use the + # versioned .so libs for executables only if there is the -brtl + # linker flag in LDFLAGS as well, or --with-aix-soname=svr4 only. + # To allow for filename-based versioning support, we need to create + # libNAME.so.V as an archive file, containing: + # *) an Import File, referring to the versioned filename of the + # archive as well as the shared archive member, telling the + # bitwidth (32 or 64) of that shared object, and providing the + # list of exported symbols of that shared object, eventually + # decorated with the 'weak' keyword + # *) the shared object with the F_LOADONLY flag set, to really avoid + # it being seen by the linker. + # At run time we better use the real file rather than another symlink, + # but for link time we create the symlink libNAME.so -> libNAME.so.V + + case $with_aix_soname,$aix_use_runtimelinking in + # AIX (on Power*) has no versioning support, so currently we cannot hardcode correct + # soname into executable. Probably we can add versioning support to + # collect2, so additional links can be useful in future. + aix,yes) # traditional libtool + dynamic_linker='AIX unversionable lib.so' + # If using run time linking (on AIX 4.2 or later) use lib.so + # instead of lib.a to let people know that these are not + # typical AIX shared libraries. + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + ;; + aix,no) # traditional AIX only + dynamic_linker='AIX lib.a(lib.so.V)' + # We preserve .a as extension for shared libraries through AIX4.2 + # and later when we are not doing run time linking. + library_names_spec='$libname$release.a $libname.a' + soname_spec='$libname$release$shared_ext$major' + ;; + svr4,*) # full svr4 only + dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o)" + library_names_spec='$libname$release$shared_ext$major $libname$shared_ext' + # We do not specify a path in Import Files, so LIBPATH fires. + shlibpath_overrides_runpath=yes + ;; + *,yes) # both, prefer svr4 + dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o), lib.a(lib.so.V)" + library_names_spec='$libname$release$shared_ext$major $libname$shared_ext' + # unpreferred sharedlib libNAME.a needs extra handling + postinstall_cmds='test -n "$linkname" || linkname="$realname"~func_stripname "" ".so" "$linkname"~$install_shared_prog "$dir/$func_stripname_result.$libext" "$destdir/$func_stripname_result.$libext"~test -z "$tstripme" || test -z "$striplib" || $striplib "$destdir/$func_stripname_result.$libext"' + postuninstall_cmds='for n in $library_names $old_library; do :; done~func_stripname "" ".so" "$n"~test "$func_stripname_result" = "$n" || func_append rmfiles " $odir/$func_stripname_result.$libext"' + # We do not specify a path in Import Files, so LIBPATH fires. + shlibpath_overrides_runpath=yes + ;; + *,no) # both, prefer aix + dynamic_linker="AIX lib.a(lib.so.V), lib.so.V($shared_archive_member_spec.o)" + library_names_spec='$libname$release.a $libname.a' + soname_spec='$libname$release$shared_ext$major' + # unpreferred sharedlib libNAME.so.V and symlink libNAME.so need extra handling + postinstall_cmds='test -z "$dlname" || $install_shared_prog $dir/$dlname $destdir/$dlname~test -z "$tstripme" || test -z "$striplib" || $striplib $destdir/$dlname~test -n "$linkname" || linkname=$realname~func_stripname "" ".a" "$linkname"~(cd "$destdir" && $LN_S -f $dlname $func_stripname_result.so)' + postuninstall_cmds='test -z "$dlname" || func_append rmfiles " $odir/$dlname"~for n in $old_library $library_names; do :; done~func_stripname "" ".a" "$n"~func_append rmfiles " $odir/$func_stripname_result.so"' + ;; + esac + shlibpath_var=LIBPATH + fi + ;; + +amigaos*) + case $host_cpu in + powerpc) + # Since July 2007 AmigaOS4 officially supports .so libraries. + # When compiling the executable, add -use-dynld -Lsobjs: to the compileline. + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + ;; + m68k) + library_names_spec='$libname.ixlibrary $libname.a' + # Create ${libname}_ixlibrary.a entries in /sys/libs. + finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done' + ;; + esac + ;; + +beos*) + library_names_spec='$libname$shared_ext' + dynamic_linker="$host_os ld.so" + shlibpath_var=LIBRARY_PATH + ;; + +bsdi[45]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir' + shlibpath_var=LD_LIBRARY_PATH + sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib" + sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib" + # the default ld.so.conf also contains /usr/contrib/lib and + # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow + # libtool to hard-code these into programs + ;; + +cygwin* | mingw* | pw32* | cegcc*) + version_type=windows + shrext_cmds=.dll + need_version=no + need_lib_prefix=no + + case $GCC,$cc_basename in + yes,*) + # gcc + library_names_spec='$libname.dll.a' + # DLL is installed to $(libdir)/../bin by postinstall_cmds + postinstall_cmds='base_file=`basename \$file`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname~ + chmod a+x \$dldir/$dlname~ + if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then + eval '\''$striplib \$dldir/$dlname'\'' || exit \$?; + fi' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + shlibpath_overrides_runpath=yes + + case $host_os in + cygwin*) + # Cygwin DLLs use 'cyg' prefix rather than 'lib' + soname_spec='`echo $libname | sed -e 's/^lib/cyg/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext' + + ;; + mingw* | cegcc*) + # MinGW DLLs use traditional 'lib' prefix + soname_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext' + ;; + pw32*) + # pw32 DLLs use 'pw' prefix rather than 'lib' + library_names_spec='`echo $libname | sed -e 's/^lib/pw/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext' + ;; + esac + dynamic_linker='Win32 ld.exe' + ;; + + *,cl*) + # Native MSVC + libname_spec='$name' + soname_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext' + library_names_spec='$libname.dll.lib' + + case $build_os in + mingw*) + sys_lib_search_path_spec= + lt_save_ifs=$IFS + IFS=';' + for lt_path in $LIB + do + IFS=$lt_save_ifs + # Let DOS variable expansion print the short 8.3 style file name. + lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"` + sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path" + done + IFS=$lt_save_ifs + # Convert to MSYS style. + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([a-zA-Z]\\):| /\\1|g' -e 's|^ ||'` + ;; + cygwin*) + # Convert to unix form, then to dos form, then back to unix form + # but this time dos style (no spaces!) so that the unix form looks + # like /cygdrive/c/PROGRA~1:/cygdr... + sys_lib_search_path_spec=`cygpath --path --unix "$LIB"` + sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null` + sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"` + ;; + *) + sys_lib_search_path_spec=$LIB + if $ECHO "$sys_lib_search_path_spec" | $GREP ';[c-zC-Z]:/' >/dev/null; then + # It is most probably a Windows format PATH. + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'` + else + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"` + fi + # FIXME: find the short name or the path components, as spaces are + # common. (e.g. "Program Files" -> "PROGRA~1") + ;; + esac + + # DLL is installed to $(libdir)/../bin by postinstall_cmds + postinstall_cmds='base_file=`basename \$file`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + shlibpath_overrides_runpath=yes + dynamic_linker='Win32 link.exe' + ;; + + *) + # Assume MSVC wrapper + library_names_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext $libname.lib' + dynamic_linker='Win32 ld.exe' + ;; + esac + # FIXME: first we should search . and the directory the executable is in + shlibpath_var=PATH + ;; + +darwin* | rhapsody*) + dynamic_linker="$host_os dyld" + version_type=darwin + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$major$shared_ext $libname$shared_ext' + soname_spec='$libname$release$major$shared_ext' + shlibpath_overrides_runpath=yes + shlibpath_var=DYLD_LIBRARY_PATH + shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`' + + sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib' + ;; + +dgux*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + ;; + +freebsd* | dragonfly*) + # DragonFly does not have aout. When/if they implement a new + # versioning mechanism, adjust this. + if test -x /usr/bin/objformat; then + objformat=`/usr/bin/objformat` + else + case $host_os in + freebsd[23].*) objformat=aout ;; + *) objformat=elf ;; + esac + fi + version_type=freebsd-$objformat + case $version_type in + freebsd-elf*) + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + need_version=no + need_lib_prefix=no + ;; + freebsd-*) + library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' + need_version=yes + ;; + esac + shlibpath_var=LD_LIBRARY_PATH + case $host_os in + freebsd2.*) + shlibpath_overrides_runpath=yes + ;; + freebsd3.[01]* | freebsdelf3.[01]*) + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + freebsd3.[2-9]* | freebsdelf3.[2-9]* | \ + freebsd4.[0-5] | freebsdelf4.[0-5] | freebsd4.1.1 | freebsdelf4.1.1) + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + *) # from 4.6 on, and DragonFly + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + esac + ;; + +haiku*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + dynamic_linker="$host_os runtime_loader" + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LIBRARY_PATH + shlibpath_overrides_runpath=no + sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib' + hardcode_into_libs=yes + ;; + +hpux9* | hpux10* | hpux11*) + # Give a soname corresponding to the major version so that dld.sl refuses to + # link against other versions. + version_type=sunos + need_lib_prefix=no + need_version=no + case $host_cpu in + ia64*) + shrext_cmds='.so' + hardcode_into_libs=yes + dynamic_linker="$host_os dld.so" + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + if test 32 = "$HPUX_IA64_MODE"; then + sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib" + sys_lib_dlsearch_path_spec=/usr/lib/hpux32 + else + sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64" + sys_lib_dlsearch_path_spec=/usr/lib/hpux64 + fi + ;; + hppa*64*) + shrext_cmds='.sl' + hardcode_into_libs=yes + dynamic_linker="$host_os dld.sl" + shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH + shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64" + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + ;; + *) + shrext_cmds='.sl' + dynamic_linker="$host_os dld.sl" + shlibpath_var=SHLIB_PATH + shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + ;; + esac + # HP-UX runs *really* slowly unless shared libraries are mode 555, ... + postinstall_cmds='chmod 555 $lib' + # or fails outright, so override atomically: + install_override_mode=555 + ;; + +interix[3-9]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + +irix5* | irix6* | nonstopux*) + case $host_os in + nonstopux*) version_type=nonstopux ;; + *) + if test yes = "$lt_cv_prog_gnu_ld"; then + version_type=linux # correct to gnu/linux during the next big refactor + else + version_type=irix + fi ;; + esac + need_lib_prefix=no + need_version=no + soname_spec='$libname$release$shared_ext$major' + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext' + case $host_os in + irix5* | nonstopux*) + libsuff= shlibsuff= + ;; + *) + case $LD in # libtool.m4 will add one of these switches to LD + *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ") + libsuff= shlibsuff= libmagic=32-bit;; + *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ") + libsuff=32 shlibsuff=N32 libmagic=N32;; + *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ") + libsuff=64 shlibsuff=64 libmagic=64-bit;; + *) libsuff= shlibsuff= libmagic=never-match;; + esac + ;; + esac + shlibpath_var=LD_LIBRARY${shlibsuff}_PATH + shlibpath_overrides_runpath=no + sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff" + sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff" + hardcode_into_libs=yes + ;; + +# No shared lib support for Linux oldld, aout, or coff. +linux*oldld* | linux*aout* | linux*coff*) + dynamic_linker=no + ;; + +linux*android*) + version_type=none # Android doesn't support versioned libraries. + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext' + soname_spec='$libname$release$shared_ext' + finish_cmds= + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + + # This implies no fast_install, which is unacceptable. + # Some rework will be needed to allow for fast_install + # before this can be enabled. + hardcode_into_libs=yes + + dynamic_linker='Android linker' + # Don't embed -rpath directories since the linker doesn't support them. + hardcode_libdir_flag_spec_CXX='-L$libdir' + ;; + +# This must be glibc/ELF. +linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + + # Some binutils ld are patched to set DT_RUNPATH + if ${lt_cv_shlibpath_overrides_runpath+:} false; then : + $as_echo_n "(cached) " >&6 +else + lt_cv_shlibpath_overrides_runpath=no + save_LDFLAGS=$LDFLAGS + save_libdir=$libdir + eval "libdir=/foo; wl=\"$lt_prog_compiler_wl_CXX\"; \ + LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec_CXX\"" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_link "$LINENO"; then : + if ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null; then : + lt_cv_shlibpath_overrides_runpath=yes +fi +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + LDFLAGS=$save_LDFLAGS + libdir=$save_libdir + +fi + + shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath + + # This implies no fast_install, which is unacceptable. + # Some rework will be needed to allow for fast_install + # before this can be enabled. + hardcode_into_libs=yes + + # Add ABI-specific directories to the system library path. + sys_lib_dlsearch_path_spec="/lib64 /usr/lib64 /lib /usr/lib" + + # Ideally, we could use ldconfig to report *all* directores which are + # searched for libraries, however this is still not possible. Aside from not + # being certain /sbin/ldconfig is available, command + # 'ldconfig -N -X -v | grep ^/' on 64bit Fedora does not report /usr/lib64, + # even though it is searched at run-time. Try to do the best guess by + # appending ld.so.conf contents (and includes) to the search path. + if test -f /etc/ld.so.conf; then + lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[ ]*hwcap[ ]/d;s/[:, ]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '` + sys_lib_dlsearch_path_spec="$sys_lib_dlsearch_path_spec $lt_ld_extra" + fi + + # We used to test for /lib/ld.so.1 and disable shared libraries on + # powerpc, because MkLinux only supported shared libraries with the + # GNU dynamic linker. Since this was broken with cross compilers, + # most powerpc-linux boxes support dynamic linking these days and + # people can always --disable-shared, the test was removed, and we + # assume the GNU/Linux dynamic linker is in use. + dynamic_linker='GNU/Linux ld.so' + ;; + +netbsd*) + version_type=sunos + need_lib_prefix=no + need_version=no + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' + dynamic_linker='NetBSD (a.out) ld.so' + else + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + dynamic_linker='NetBSD ld.elf_so' + fi + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + +newsos6) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + ;; + +*nto* | *qnx*) + version_type=qnx + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + dynamic_linker='ldqnx.so' + ;; + +openbsd* | bitrig*) + version_type=sunos + sys_lib_dlsearch_path_spec=/usr/lib + need_lib_prefix=no + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then + need_version=no + else + need_version=yes + fi + library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + ;; + +os2*) + libname_spec='$name' + version_type=windows + shrext_cmds=.dll + need_version=no + need_lib_prefix=no + # OS/2 can only load a DLL with a base name of 8 characters or less. + soname_spec='`test -n "$os2dllname" && libname="$os2dllname"; + v=$($ECHO $release$versuffix | tr -d .-); + n=$($ECHO $libname | cut -b -$((8 - ${#v})) | tr . _); + $ECHO $n$v`$shared_ext' + library_names_spec='${libname}_dll.$libext' + dynamic_linker='OS/2 ld.exe' + shlibpath_var=BEGINLIBPATH + sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib" + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + postinstall_cmds='base_file=`basename \$file`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; $ECHO \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname~ + chmod a+x \$dldir/$dlname~ + if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then + eval '\''$striplib \$dldir/$dlname'\'' || exit \$?; + fi' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; $ECHO \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + ;; + +osf3* | osf4* | osf5*) + version_type=osf + need_lib_prefix=no + need_version=no + soname_spec='$libname$release$shared_ext$major' + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + shlibpath_var=LD_LIBRARY_PATH + sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib" + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + ;; + +rdos*) + dynamic_linker=no + ;; + +solaris*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + # ldd complains unless libraries are executable + postinstall_cmds='chmod +x $lib' + ;; + +sunos4*) + version_type=sunos + library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' + finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + if test yes = "$with_gnu_ld"; then + need_lib_prefix=no + fi + need_version=yes + ;; + +sysv4 | sysv4.3*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + case $host_vendor in + sni) + shlibpath_overrides_runpath=no + need_lib_prefix=no + runpath_var=LD_RUN_PATH + ;; + siemens) + need_lib_prefix=no + ;; + motorola) + need_lib_prefix=no + need_version=no + shlibpath_overrides_runpath=no + sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib' + ;; + esac + ;; + +sysv4*MP*) + if test -d /usr/nec; then + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$shared_ext.$versuffix $libname$shared_ext.$major $libname$shared_ext' + soname_spec='$libname$shared_ext.$major' + shlibpath_var=LD_LIBRARY_PATH + fi + ;; + +sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) + version_type=sco + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + if test yes = "$with_gnu_ld"; then + sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib' + else + sys_lib_search_path_spec='/usr/ccs/lib /usr/lib' + case $host_os in + sco3.2v5*) + sys_lib_search_path_spec="$sys_lib_search_path_spec /lib" + ;; + esac + fi + sys_lib_dlsearch_path_spec='/usr/lib' + ;; + +tpf*) + # TPF is a cross-target only. Preferred cross-host = GNU/Linux. + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + +uts4*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + ;; + +*) + dynamic_linker=no + ;; +esac +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5 +$as_echo "$dynamic_linker" >&6; } +test no = "$dynamic_linker" && can_build_shared=no + +variables_saved_for_relink="PATH $shlibpath_var $runpath_var" +if test yes = "$GCC"; then + variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH" +fi + +if test set = "${lt_cv_sys_lib_search_path_spec+set}"; then + sys_lib_search_path_spec=$lt_cv_sys_lib_search_path_spec +fi + +if test set = "${lt_cv_sys_lib_dlsearch_path_spec+set}"; then + sys_lib_dlsearch_path_spec=$lt_cv_sys_lib_dlsearch_path_spec +fi + +# remember unaugmented sys_lib_dlsearch_path content for libtool script decls... +configure_time_dlsearch_path=$sys_lib_dlsearch_path_spec + +# ... but it needs LT_SYS_LIBRARY_PATH munging for other configure-time code +func_munge_path_list sys_lib_dlsearch_path_spec "$LT_SYS_LIBRARY_PATH" + +# to be used as default LT_SYS_LIBRARY_PATH value in generated libtool +configure_time_lt_sys_library_path=$LT_SYS_LIBRARY_PATH + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5 +$as_echo_n "checking how to hardcode library paths into programs... " >&6; } +hardcode_action_CXX= +if test -n "$hardcode_libdir_flag_spec_CXX" || + test -n "$runpath_var_CXX" || + test yes = "$hardcode_automatic_CXX"; then + + # We can hardcode non-existent directories. + if test no != "$hardcode_direct_CXX" && + # If the only mechanism to avoid hardcoding is shlibpath_var, we + # have to relink, otherwise we might link with an installed library + # when we should be linking with a yet-to-be-installed one + ## test no != "$_LT_TAGVAR(hardcode_shlibpath_var, CXX)" && + test no != "$hardcode_minus_L_CXX"; then + # Linking always hardcodes the temporary library directory. + hardcode_action_CXX=relink + else + # We can link without hardcoding, and we can hardcode nonexisting dirs. + hardcode_action_CXX=immediate + fi +else + # We cannot hardcode anything, or else we can only hardcode existing + # directories. + hardcode_action_CXX=unsupported +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $hardcode_action_CXX" >&5 +$as_echo "$hardcode_action_CXX" >&6; } + +if test relink = "$hardcode_action_CXX" || + test yes = "$inherit_rpath_CXX"; then + # Fast installation is not supported + enable_fast_install=no +elif test yes = "$shlibpath_overrides_runpath" || + test no = "$enable_shared"; then + # Fast installation is not necessary + enable_fast_install=needless +fi + + + + + + + + fi # test -n "$compiler" + + CC=$lt_save_CC + CFLAGS=$lt_save_CFLAGS + LDCXX=$LD + LD=$lt_save_LD + GCC=$lt_save_GCC + with_gnu_ld=$lt_save_with_gnu_ld + lt_cv_path_LDCXX=$lt_cv_path_LD + lt_cv_path_LD=$lt_save_path_LD + lt_cv_prog_gnu_ldcxx=$lt_cv_prog_gnu_ld + lt_cv_prog_gnu_ld=$lt_save_with_gnu_ld +fi # test yes != "$_lt_caught_CXX_error" + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the C++ compiler really really works" >&5 +$as_echo_n "checking if the C++ compiler really really works... " >&6; } +if $CXX --version >&5 2>&1; then : + have_cxx=yes +else + have_cxx=no +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_cxx" >&5 +$as_echo "$have_cxx" >&6; } + if test "$have_cxx" = "yes"; then + HAVE_CXX_TRUE= + HAVE_CXX_FALSE='#' +else + HAVE_CXX_TRUE='#' + HAVE_CXX_FALSE= +fi + + +# Check whether --enable-gcc-warnings was given. +if test "${enable_gcc_warnings+set}" = set; then : + enableval=$enable_gcc_warnings; case $enableval in + yes|no) ;; + *) as_fn_error $? "bad value $enableval for gcc-warnings option" "$LINENO" 5 ;; + esac + gcc_warnings=$enableval +else + gcc_warnings=no + +fi + +if test "x$gcc_warnings" = "xyes"; then + WARNINGS_CFLAGS="-Wall -Werror" + +fi + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the compiler supports -std=c90 for ANSI C test" >&5 +$as_echo_n "checking if the compiler supports -std=c90 for ANSI C test... " >&6; } +old_CFLAGS="$CFLAGS" +CFLAGS="$CFLAGS -std=c90" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + supports_std_c90=yes +else + supports_std_c90=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +CFLAGS="$old_CFLAGS" +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supports_std_c90" >&5 +$as_echo "$supports_std_c90" >&6; } + if test "x$supports_std_c90" = "xyes"; then + CAN_TEST_ANSI_C_TRUE= + CAN_TEST_ANSI_C_FALSE='#' +else + CAN_TEST_ANSI_C_TRUE='#' + CAN_TEST_ANSI_C_FALSE= +fi + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether OS-dependent include paths are required" >&5 +$as_echo_n "checking whether OS-dependent include paths are required... " >&6; } +case $host_os in #( + haiku*) : + CFLAGS="$CFLAGS -I`findpaths -p /system B_FIND_PATH_HEADERS_DIRECTORY`/bsd"; { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } ;; #( + *) : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + ;; +esac + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for temporary directory for large files" >&5 +$as_echo_n "checking for temporary directory for large files... " >&6; } +case $host_os in #( + haiku*) : + LARGE_TMPDIR=/tmp ;; #( + *) : + LARGE_TMPDIR=/var/tmp + ;; +esac +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $LARGE_TMPDIR" >&5 +$as_echo "$LARGE_TMPDIR" >&6; } + +cat >>confdefs.h <<_ACEOF +#define LARGE_TMPDIR "$LARGE_TMPDIR" +_ACEOF + + +ac_fn_c_check_decl "$LINENO" "program_invocation_short_name" "ac_cv_have_decl_program_invocation_short_name" "#include +" +if test "x$ac_cv_have_decl_program_invocation_short_name" = xyes; then : + ac_have_decl=1 +else + ac_have_decl=0 +fi + +cat >>confdefs.h <<_ACEOF +#define HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME $ac_have_decl +_ACEOF + + + + + + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +ax_pthread_ok=no + +# We used to check for pthread.h first, but this fails if pthread.h +# requires special compiler flags (e.g. on Tru64 or Sequent). +# It gets checked for in the link test anyway. + +# First of all, check if the user has set any of the PTHREAD_LIBS, +# etcetera environment variables, and if threads linking works using +# them: +if test "x$PTHREAD_CFLAGS$PTHREAD_LIBS" != "x"; then + ax_pthread_save_CC="$CC" + ax_pthread_save_CFLAGS="$CFLAGS" + ax_pthread_save_LIBS="$LIBS" + if test "x$PTHREAD_CC" != "x"; then : + CC="$PTHREAD_CC" +fi + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + LIBS="$PTHREAD_LIBS $LIBS" + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_join using $CC $PTHREAD_CFLAGS $PTHREAD_LIBS" >&5 +$as_echo_n "checking for pthread_join using $CC $PTHREAD_CFLAGS $PTHREAD_LIBS... " >&6; } + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char pthread_join (); +int +main () +{ +return pthread_join (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ax_pthread_ok=yes +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_ok" >&5 +$as_echo "$ax_pthread_ok" >&6; } + if test "x$ax_pthread_ok" = "xno"; then + PTHREAD_LIBS="" + PTHREAD_CFLAGS="" + fi + CC="$ax_pthread_save_CC" + CFLAGS="$ax_pthread_save_CFLAGS" + LIBS="$ax_pthread_save_LIBS" +fi + +# We must check for the threads library under a number of different +# names; the ordering is very important because some systems +# (e.g. DEC) have both -lpthread and -lpthreads, where one of the +# libraries is broken (non-POSIX). + +# Create a list of thread flags to try. Items starting with a "-" are +# C compiler flags, and other items are library names, except for "none" +# which indicates that we try without any flags at all, and "pthread-config" +# which is a program returning the flags for the Pth emulation library. + +ax_pthread_flags="pthreads none -Kthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config" + +# The ordering *is* (sometimes) important. Some notes on the +# individual items follow: + +# pthreads: AIX (must check this before -lpthread) +# none: in case threads are in libc; should be tried before -Kthread and +# other compiler flags to prevent continual compiler warnings +# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h) +# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads), Tru64 +# (Note: HP C rejects this with "bad form for `-t' option") +# -pthreads: Solaris/gcc (Note: HP C also rejects) +# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it +# doesn't hurt to check since this sometimes defines pthreads and +# -D_REENTRANT too), HP C (must be checked before -lpthread, which +# is present but should not be used directly; and before -mthreads, +# because the compiler interprets this as "-mt" + "-hreads") +# -mthreads: Mingw32/gcc, Lynx/gcc +# pthread: Linux, etcetera +# --thread-safe: KAI C++ +# pthread-config: use pthread-config program (for GNU Pth library) + +case $host_os in + + freebsd*) + + # -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able) + # lthread: LinuxThreads port on FreeBSD (also preferred to -pthread) + + ax_pthread_flags="-kthread lthread $ax_pthread_flags" + ;; + + hpux*) + + # From the cc(1) man page: "[-mt] Sets various -D flags to enable + # multi-threading and also sets -lpthread." + + ax_pthread_flags="-mt -pthread pthread $ax_pthread_flags" + ;; + + openedition*) + + # IBM z/OS requires a feature-test macro to be defined in order to + # enable POSIX threads at all, so give the user a hint if this is + # not set. (We don't define these ourselves, as they can affect + # other portions of the system API in unpredictable ways.) + + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +# if !defined(_OPEN_THREADS) && !defined(_UNIX03_THREADS) + AX_PTHREAD_ZOS_MISSING +# endif + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "AX_PTHREAD_ZOS_MISSING" >/dev/null 2>&1; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support." >&5 +$as_echo "$as_me: WARNING: IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support." >&2;} +fi +rm -f conftest* + + ;; + + solaris*) + + # On Solaris (at least, for some versions), libc contains stubbed + # (non-functional) versions of the pthreads routines, so link-based + # tests will erroneously succeed. (N.B.: The stubs are missing + # pthread_cleanup_push, or rather a function called by this macro, + # so we could check for that, but who knows whether they'll stub + # that too in a future libc.) So we'll check first for the + # standard Solaris way of linking pthreads (-mt -lpthread). + + ax_pthread_flags="-mt,pthread pthread $ax_pthread_flags" + ;; +esac + +# GCC generally uses -pthread, or -pthreads on some platforms (e.g. SPARC) + +if test "x$GCC" = "xyes"; then : + ax_pthread_flags="-pthread -pthreads $ax_pthread_flags" +fi + +# The presence of a feature test macro requesting re-entrant function +# definitions is, on some systems, a strong hint that pthreads support is +# correctly enabled + +case $host_os in + darwin* | hpux* | linux* | osf* | solaris*) + ax_pthread_check_macro="_REENTRANT" + ;; + + aix*) + ax_pthread_check_macro="_THREAD_SAFE" + ;; + + *) + ax_pthread_check_macro="--" + ;; +esac +if test "x$ax_pthread_check_macro" = "x--"; then : + ax_pthread_check_cond=0 +else + ax_pthread_check_cond="!defined($ax_pthread_check_macro)" +fi + +# Are we compiling with Clang? + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC is Clang" >&5 +$as_echo_n "checking whether $CC is Clang... " >&6; } +if ${ax_cv_PTHREAD_CLANG+:} false; then : + $as_echo_n "(cached) " >&6 +else + ax_cv_PTHREAD_CLANG=no + # Note that Autoconf sets GCC=yes for Clang as well as GCC + if test "x$GCC" = "xyes"; then + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +/* Note: Clang 2.7 lacks __clang_[a-z]+__ */ +# if defined(__clang__) && defined(__llvm__) + AX_PTHREAD_CC_IS_CLANG +# endif + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "AX_PTHREAD_CC_IS_CLANG" >/dev/null 2>&1; then : + ax_cv_PTHREAD_CLANG=yes +fi +rm -f conftest* + + fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_CLANG" >&5 +$as_echo "$ax_cv_PTHREAD_CLANG" >&6; } +ax_pthread_clang="$ax_cv_PTHREAD_CLANG" + +ax_pthread_clang_warning=no + +# Clang needs special handling, because older versions handle the -pthread +# option in a rather... idiosyncratic way + +if test "x$ax_pthread_clang" = "xyes"; then + + # Clang takes -pthread; it has never supported any other flag + + # (Note 1: This will need to be revisited if a system that Clang + # supports has POSIX threads in a separate library. This tends not + # to be the way of modern systems, but it's conceivable.) + + # (Note 2: On some systems, notably Darwin, -pthread is not needed + # to get POSIX threads support; the API is always present and + # active. We could reasonably leave PTHREAD_CFLAGS empty. But + # -pthread does define _REENTRANT, and while the Darwin headers + # ignore this macro, third-party headers might not.) + + PTHREAD_CFLAGS="-pthread" + PTHREAD_LIBS= + + ax_pthread_ok=yes + + # However, older versions of Clang make a point of warning the user + # that, in an invocation where only linking and no compilation is + # taking place, the -pthread option has no effect ("argument unused + # during compilation"). They expect -pthread to be passed in only + # when source code is being compiled. + # + # Problem is, this is at odds with the way Automake and most other + # C build frameworks function, which is that the same flags used in + # compilation (CFLAGS) are also used in linking. Many systems + # supported by AX_PTHREAD require exactly this for POSIX threads + # support, and in fact it is often not straightforward to specify a + # flag that is used only in the compilation phase and not in + # linking. Such a scenario is extremely rare in practice. + # + # Even though use of the -pthread flag in linking would only print + # a warning, this can be a nuisance for well-run software projects + # that build with -Werror. So if the active version of Clang has + # this misfeature, we search for an option to squash it. + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether Clang needs flag to prevent \"argument unused\" warning when linking with -pthread" >&5 +$as_echo_n "checking whether Clang needs flag to prevent \"argument unused\" warning when linking with -pthread... " >&6; } +if ${ax_cv_PTHREAD_CLANG_NO_WARN_FLAG+:} false; then : + $as_echo_n "(cached) " >&6 +else + ax_cv_PTHREAD_CLANG_NO_WARN_FLAG=unknown + # Create an alternate version of $ac_link that compiles and + # links in two steps (.c -> .o, .o -> exe) instead of one + # (.c -> exe), because the warning occurs only in the second + # step + ax_pthread_save_ac_link="$ac_link" + ax_pthread_sed='s/conftest\.\$ac_ext/conftest.$ac_objext/g' + ax_pthread_link_step=`$as_echo "$ac_link" | sed "$ax_pthread_sed"` + ax_pthread_2step_ac_link="($ac_compile) && (echo ==== >&5) && ($ax_pthread_link_step)" + ax_pthread_save_CFLAGS="$CFLAGS" + for ax_pthread_try in '' -Qunused-arguments -Wno-unused-command-line-argument unknown; do + if test "x$ax_pthread_try" = "xunknown"; then : + break +fi + CFLAGS="-Werror -Wunknown-warning-option $ax_pthread_try -pthread $ax_pthread_save_CFLAGS" + ac_link="$ax_pthread_save_ac_link" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +int main(void){return 0;} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_link="$ax_pthread_2step_ac_link" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +int main(void){return 0;} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + break +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + done + ac_link="$ax_pthread_save_ac_link" + CFLAGS="$ax_pthread_save_CFLAGS" + if test "x$ax_pthread_try" = "x"; then : + ax_pthread_try=no +fi + ax_cv_PTHREAD_CLANG_NO_WARN_FLAG="$ax_pthread_try" + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" >&5 +$as_echo "$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" >&6; } + + case "$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" in + no | unknown) ;; + *) PTHREAD_CFLAGS="$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG $PTHREAD_CFLAGS" ;; + esac + +fi # $ax_pthread_clang = yes + +if test "x$ax_pthread_ok" = "xno"; then +for ax_pthread_try_flag in $ax_pthread_flags; do + + case $ax_pthread_try_flag in + none) + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads work without any flags" >&5 +$as_echo_n "checking whether pthreads work without any flags... " >&6; } + ;; + + -mt,pthread) + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads work with -mt -lpthread" >&5 +$as_echo_n "checking whether pthreads work with -mt -lpthread... " >&6; } + PTHREAD_CFLAGS="-mt" + PTHREAD_LIBS="-lpthread" + ;; + + -*) + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads work with $ax_pthread_try_flag" >&5 +$as_echo_n "checking whether pthreads work with $ax_pthread_try_flag... " >&6; } + PTHREAD_CFLAGS="$ax_pthread_try_flag" + ;; + + pthread-config) + # Extract the first word of "pthread-config", so it can be a program name with args. +set dummy pthread-config; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ax_pthread_config+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ax_pthread_config"; then + ac_cv_prog_ax_pthread_config="$ax_pthread_config" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ax_pthread_config="yes" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + test -z "$ac_cv_prog_ax_pthread_config" && ac_cv_prog_ax_pthread_config="no" +fi +fi +ax_pthread_config=$ac_cv_prog_ax_pthread_config +if test -n "$ax_pthread_config"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_config" >&5 +$as_echo "$ax_pthread_config" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + if test "x$ax_pthread_config" = "xno"; then : + continue +fi + PTHREAD_CFLAGS="`pthread-config --cflags`" + PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`" + ;; + + *) + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for the pthreads library -l$ax_pthread_try_flag" >&5 +$as_echo_n "checking for the pthreads library -l$ax_pthread_try_flag... " >&6; } + PTHREAD_LIBS="-l$ax_pthread_try_flag" + ;; + esac + + ax_pthread_save_CFLAGS="$CFLAGS" + ax_pthread_save_LIBS="$LIBS" + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + LIBS="$PTHREAD_LIBS $LIBS" + + # Check for various functions. We must include pthread.h, + # since some functions may be macros. (On the Sequent, we + # need a special flag -Kthread to make this header compile.) + # We check for pthread_join because it is in -lpthread on IRIX + # while pthread_create is in libc. We check for pthread_attr_init + # due to DEC craziness with -lpthreads. We check for + # pthread_cleanup_push because it is one of the few pthread + # functions on Solaris that doesn't have a non-functional libc stub. + # We try pthread_create on general principles. + + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +# if $ax_pthread_check_cond +# error "$ax_pthread_check_macro must be defined" +# endif + static void routine(void *a) { a = 0; } + static void *start_routine(void *a) { return a; } +int +main () +{ +pthread_t th; pthread_attr_t attr; + pthread_create(&th, 0, start_routine, 0); + pthread_join(th, 0); + pthread_attr_init(&attr); + pthread_cleanup_push(routine, 0); + pthread_cleanup_pop(0) /* ; */ + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ax_pthread_ok=yes +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + + CFLAGS="$ax_pthread_save_CFLAGS" + LIBS="$ax_pthread_save_LIBS" + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_ok" >&5 +$as_echo "$ax_pthread_ok" >&6; } + if test "x$ax_pthread_ok" = "xyes"; then : + break +fi + + PTHREAD_LIBS="" + PTHREAD_CFLAGS="" +done +fi + +# Various other checks: +if test "x$ax_pthread_ok" = "xyes"; then + ax_pthread_save_CFLAGS="$CFLAGS" + ax_pthread_save_LIBS="$LIBS" + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + LIBS="$PTHREAD_LIBS $LIBS" + + # Detect AIX lossage: JOINABLE attribute is called UNDETACHED. + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for joinable pthread attribute" >&5 +$as_echo_n "checking for joinable pthread attribute... " >&6; } +if ${ax_cv_PTHREAD_JOINABLE_ATTR+:} false; then : + $as_echo_n "(cached) " >&6 +else + ax_cv_PTHREAD_JOINABLE_ATTR=unknown + for ax_pthread_attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +int +main () +{ +int attr = $ax_pthread_attr; return attr /* ; */ + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ax_cv_PTHREAD_JOINABLE_ATTR=$ax_pthread_attr; break +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + done + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_JOINABLE_ATTR" >&5 +$as_echo "$ax_cv_PTHREAD_JOINABLE_ATTR" >&6; } + if test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xunknown" && \ + test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xPTHREAD_CREATE_JOINABLE" && \ + test "x$ax_pthread_joinable_attr_defined" != "xyes"; then : + +cat >>confdefs.h <<_ACEOF +#define PTHREAD_CREATE_JOINABLE $ax_cv_PTHREAD_JOINABLE_ATTR +_ACEOF + + ax_pthread_joinable_attr_defined=yes + +fi + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether more special flags are required for pthreads" >&5 +$as_echo_n "checking whether more special flags are required for pthreads... " >&6; } +if ${ax_cv_PTHREAD_SPECIAL_FLAGS+:} false; then : + $as_echo_n "(cached) " >&6 +else + ax_cv_PTHREAD_SPECIAL_FLAGS=no + case $host_os in + solaris*) + ax_cv_PTHREAD_SPECIAL_FLAGS="-D_POSIX_PTHREAD_SEMANTICS" + ;; + esac + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_SPECIAL_FLAGS" >&5 +$as_echo "$ax_cv_PTHREAD_SPECIAL_FLAGS" >&6; } + if test "x$ax_cv_PTHREAD_SPECIAL_FLAGS" != "xno" && \ + test "x$ax_pthread_special_flags_added" != "xyes"; then : + PTHREAD_CFLAGS="$ax_cv_PTHREAD_SPECIAL_FLAGS $PTHREAD_CFLAGS" + ax_pthread_special_flags_added=yes +fi + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for PTHREAD_PRIO_INHERIT" >&5 +$as_echo_n "checking for PTHREAD_PRIO_INHERIT... " >&6; } +if ${ax_cv_PTHREAD_PRIO_INHERIT+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +int +main () +{ +int i = PTHREAD_PRIO_INHERIT; + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ax_cv_PTHREAD_PRIO_INHERIT=yes +else + ax_cv_PTHREAD_PRIO_INHERIT=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_PRIO_INHERIT" >&5 +$as_echo "$ax_cv_PTHREAD_PRIO_INHERIT" >&6; } + if test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes" && \ + test "x$ax_pthread_prio_inherit_defined" != "xyes"; then : + +$as_echo "#define HAVE_PTHREAD_PRIO_INHERIT 1" >>confdefs.h + + ax_pthread_prio_inherit_defined=yes + +fi + + CFLAGS="$ax_pthread_save_CFLAGS" + LIBS="$ax_pthread_save_LIBS" + + # More AIX lossage: compile with *_r variant + if test "x$GCC" != "xyes"; then + case $host_os in + aix*) + case "x/$CC" in #( + x*/c89|x*/c89_128|x*/c99|x*/c99_128|x*/cc|x*/cc128|x*/xlc|x*/xlc_v6|x*/xlc128|x*/xlc128_v6) : + #handle absolute path differently from PATH based program lookup + case "x$CC" in #( + x/*) : + if as_fn_executable_p ${CC}_r; then : + PTHREAD_CC="${CC}_r" +fi ;; #( + *) : + for ac_prog in ${CC}_r +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_PTHREAD_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$PTHREAD_CC"; then + ac_cv_prog_PTHREAD_CC="$PTHREAD_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_PTHREAD_CC="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +PTHREAD_CC=$ac_cv_prog_PTHREAD_CC +if test -n "$PTHREAD_CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PTHREAD_CC" >&5 +$as_echo "$PTHREAD_CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$PTHREAD_CC" && break +done +test -n "$PTHREAD_CC" || PTHREAD_CC="$CC" + ;; +esac ;; #( + *) : + ;; +esac + ;; + esac + fi +fi + +test -n "$PTHREAD_CC" || PTHREAD_CC="$CC" + + + + + +# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND: +if test "x$ax_pthread_ok" = "xyes"; then + +$as_echo "#define HAVE_PTHREAD 1" >>confdefs.h + + : +else + ax_pthread_ok=no + +fi +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + + +acx_nbdkit_save_CFLAGS="${CFLAGS}" +CFLAGS="${CFLAGS} -Werror" +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if __attribute__((cleanup(...))) works with this compiler" >&5 +$as_echo_n "checking if __attribute__((cleanup(...))) works with this compiler... " >&6; } +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + + +#include +#include + +void +freep (void *ptr) +{ + exit (EXIT_SUCCESS); +} + +void +test (void) +{ + __attribute__((cleanup(freep))) char *ptr = malloc (100); +} + +int +main (int argc, char *argv[]) +{ + test (); + exit (EXIT_FAILURE); +} + + +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + +else + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + as_fn_error $? "'__attribute__((cleanup(...)))' does not work. + +You may not be using a sufficiently recent version of GCC or CLANG, or +you may be using a C compiler which does not support this attribute, +or the configure test may be wrong. + +This code requires the attribute to work for proper locking between threads." "$LINENO" 5 +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +CFLAGS="${acx_nbdkit_save_CFLAGS}" + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if __auto_type is available in this compiler" >&5 +$as_echo_n "checking if __auto_type is available in this compiler... " >&6; } +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + + +static int +test (int a) +{ + __auto_type at = a; + return at; +} + + +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + +$as_echo "#define HAVE_AUTO_TYPE 1" >>confdefs.h + + +else + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + + +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + +for ac_header in \ + alloca.h \ + byteswap.h \ + endian.h \ + sys/endian.h \ + sys/prctl.h \ + sys/procctl.h +do : + as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` +ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default" +if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +fi + +done + + +for ac_func in \ + fdatasync \ + get_current_dir_name \ + mkostemp +do : + as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` +ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" +if eval test \"x\$"$as_ac_var"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1 +_ACEOF + +fi +done + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the printf family supports %m" >&5 +$as_echo_n "checking whether the printf family supports %m... " >&6; } +if ${nbdkit_cv_func_printf_percent_m+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test "$cross_compiling" = yes; then : + + case "$host_os" in + *-gnu* | gnu*) nbdkit_cv_func_printf_percent_m=yes;; + *) nbdkit_cv_func_printf_percent_m="guessing no";; + esac + +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#include +#include +#include + +int +main () +{ + + char buf[200] = ""; + errno = EINVAL; + snprintf(buf, sizeof buf, "%m"); + return !!strcmp (buf, strerror (EINVAL)); + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + nbdkit_cv_func_printf_percent_m=yes +else + nbdkit_cv_func_printf_percent_m=no +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext +fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $nbdkit_cv_func_printf_percent_m" >&5 +$as_echo "$nbdkit_cv_func_printf_percent_m" >&6; } +if test "x$nbdkit_cv_func_printf_percent_m" = xyes; then : + +$as_echo "#define HAVE_VFPRINTF_PERCENT_M 1" >>confdefs.h + +fi + +old_LIBS="$LIBS" +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing dlopen" >&5 +$as_echo_n "checking for library containing dlopen... " >&6; } +if ${ac_cv_search_dlopen+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_func_search_save_LIBS=$LIBS +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char dlopen (); +int +main () +{ +return dlopen (); + ; + return 0; +} +_ACEOF +for ac_lib in '' dl dld; do + if test -z "$ac_lib"; then + ac_res="none required" + else + ac_res=-l$ac_lib + LIBS="-l$ac_lib $ac_func_search_save_LIBS" + fi + if ac_fn_c_try_link "$LINENO"; then : + ac_cv_search_dlopen=$ac_res +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext + if ${ac_cv_search_dlopen+:} false; then : + break +fi +done +if ${ac_cv_search_dlopen+:} false; then : + +else + ac_cv_search_dlopen=no +fi +rm conftest.$ac_ext +LIBS=$ac_func_search_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_dlopen" >&5 +$as_echo "$ac_cv_search_dlopen" >&6; } +ac_res=$ac_cv_search_dlopen +if test "$ac_res" != no; then : + test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" + + if test "x$ac_cv_search_dlopen" != "xnone required"; then : + DL_LIBS="$ac_cv_search_dlopen" +else + DL_LIBS= +fi + + +else + as_fn_error $? "unable to find the dlopen() function" "$LINENO" 5 + +fi + +LIBS="$old_LIBS" + + +# Check whether --with-iconv was given. +if test "${with_iconv+set}" = set; then : + withval=$with_iconv; +else + with_iconv=check +fi + +if test "x$with_iconv" != "xno"; then : + + ac_fn_c_check_header_mongrel "$LINENO" "iconv.h" "ac_cv_header_iconv_h" "$ac_includes_default" +if test "x$ac_cv_header_iconv_h" = xyes; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if can be used to link a program" >&5 +$as_echo_n "checking if can be used to link a program... " >&6; } + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + + +#include +#include +#include +int +main (int argc, char *argv[]) +{ + iconv_t ic = iconv_open ("", ""); + iconv_close (ic); + exit (0); +} + + +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + iconv_working=yes + +else + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + +fi + + + +fi + if test "x$iconv_working" = "xyes"; then + HAVE_ICONV_TRUE= + HAVE_ICONV_FALSE='#' +else + HAVE_ICONV_TRUE='#' + HAVE_ICONV_FALSE= +fi + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if we should use a linker script for the server" >&5 +$as_echo_n "checking if we should use a linker script for the server... " >&6; } +case $host_os in #( + freebsd*) : + use_linker_script_for_server=no ;; #( + *) : + use_linker_script_for_server=yes + ;; +esac +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $use_linker_script_for_server" >&5 +$as_echo "$use_linker_script_for_server" >&6; } + if test "x$use_linker_script_for_server" = "xyes"; then + USE_LINKER_SCRIPT_FOR_SERVER_TRUE= + USE_LINKER_SCRIPT_FOR_SERVER_FALSE='#' +else + USE_LINKER_SCRIPT_FOR_SERVER_TRUE='#' + USE_LINKER_SCRIPT_FOR_SERVER_FALSE= +fi + + +acx_nbdkit_save_LDFLAGS="${LDFLAGS}" +LDFLAGS="${LDFLAGS} -rdynamic" +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if linker supports -rdynamic" >&5 +$as_echo_n "checking if linker supports -rdynamic... " >&6; } +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + + +#include +int +main (int argc, char *argv[]) +{ + exit (EXIT_SUCCESS); +} + + +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + DL_LDFLAGS=-rdynamic + +else + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LDFLAGS="${acx_nbdkit_save_LDFLAGS}" + + +old_LIBS="$LIBS" +LIBS="$DL_LIBS $LIBS" +for ac_func in dladdr +do : + ac_fn_c_check_func "$LINENO" "dladdr" "ac_cv_func_dladdr" +if test "x$ac_cv_func_dladdr" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_DLADDR 1 +_ACEOF + +fi +done + +LIBS="$old_LIBS" + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing getaddrinfo" >&5 +$as_echo_n "checking for library containing getaddrinfo... " >&6; } +if ${ac_cv_search_getaddrinfo+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_func_search_save_LIBS=$LIBS +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char getaddrinfo (); +int +main () +{ +return getaddrinfo (); + ; + return 0; +} +_ACEOF +for ac_lib in '' network socket; do + if test -z "$ac_lib"; then + ac_res="none required" + else + ac_res=-l$ac_lib + LIBS="-l$ac_lib $ac_func_search_save_LIBS" + fi + if ac_fn_c_try_link "$LINENO"; then : + ac_cv_search_getaddrinfo=$ac_res +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext + if ${ac_cv_search_getaddrinfo+:} false; then : + break +fi +done +if ${ac_cv_search_getaddrinfo+:} false; then : + +else + ac_cv_search_getaddrinfo=no +fi +rm conftest.$ac_ext +LIBS=$ac_func_search_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_getaddrinfo" >&5 +$as_echo "$ac_cv_search_getaddrinfo" >&6; } +ac_res=$ac_cv_search_getaddrinfo +if test "$ac_res" != no; then : + test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" + +fi + + + + + + + + + +if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args. +set dummy ${ac_tool_prefix}pkg-config; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_path_PKG_CONFIG+:} false; then : + $as_echo_n "(cached) " >&6 +else + case $PKG_CONFIG in + [\\/]* | ?:[\\/]*) + ac_cv_path_PKG_CONFIG="$PKG_CONFIG" # Let the user override the test with a path. + ;; + *) + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_path_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + ;; +esac +fi +PKG_CONFIG=$ac_cv_path_PKG_CONFIG +if test -n "$PKG_CONFIG"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PKG_CONFIG" >&5 +$as_echo "$PKG_CONFIG" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_path_PKG_CONFIG"; then + ac_pt_PKG_CONFIG=$PKG_CONFIG + # Extract the first word of "pkg-config", so it can be a program name with args. +set dummy pkg-config; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_path_ac_pt_PKG_CONFIG+:} false; then : + $as_echo_n "(cached) " >&6 +else + case $ac_pt_PKG_CONFIG in + [\\/]* | ?:[\\/]*) + ac_cv_path_ac_pt_PKG_CONFIG="$ac_pt_PKG_CONFIG" # Let the user override the test with a path. + ;; + *) + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_path_ac_pt_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + ;; +esac +fi +ac_pt_PKG_CONFIG=$ac_cv_path_ac_pt_PKG_CONFIG +if test -n "$ac_pt_PKG_CONFIG"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKG_CONFIG" >&5 +$as_echo "$ac_pt_PKG_CONFIG" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_pt_PKG_CONFIG" = x; then + PKG_CONFIG="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + PKG_CONFIG=$ac_pt_PKG_CONFIG + fi +else + PKG_CONFIG="$ac_cv_path_PKG_CONFIG" +fi + +fi +if test -n "$PKG_CONFIG"; then + _pkg_min_version=0.9.0 + { $as_echo "$as_me:${as_lineno-$LINENO}: checking pkg-config is at least version $_pkg_min_version" >&5 +$as_echo_n "checking pkg-config is at least version $_pkg_min_version... " >&6; } + if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + PKG_CONFIG="" + fi +fi + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for LIBSELINUX" >&5 +$as_echo_n "checking for LIBSELINUX... " >&6; } + +if test -n "$LIBSELINUX_CFLAGS"; then + pkg_cv_LIBSELINUX_CFLAGS="$LIBSELINUX_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libselinux\""; } >&5 + ($PKG_CONFIG --exists --print-errors "libselinux") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_LIBSELINUX_CFLAGS=`$PKG_CONFIG --cflags "libselinux" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$LIBSELINUX_LIBS"; then + pkg_cv_LIBSELINUX_LIBS="$LIBSELINUX_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libselinux\""; } >&5 + ($PKG_CONFIG --exists --print-errors "libselinux") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_LIBSELINUX_LIBS=`$PKG_CONFIG --libs "libselinux" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + LIBSELINUX_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libselinux" 2>&1` + else + LIBSELINUX_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libselinux" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$LIBSELINUX_PKG_ERRORS" >&5 + + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libselinux not found, SELinux socket labelling support will be disabled." >&5 +$as_echo "$as_me: WARNING: libselinux not found, SELinux socket labelling support will be disabled." >&2;} + +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libselinux not found, SELinux socket labelling support will be disabled." >&5 +$as_echo "$as_me: WARNING: libselinux not found, SELinux socket labelling support will be disabled." >&2;} + +else + LIBSELINUX_CFLAGS=$pkg_cv_LIBSELINUX_CFLAGS + LIBSELINUX_LIBS=$pkg_cv_LIBSELINUX_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + +$as_echo "#define HAVE_LIBSELINUX 1" >>confdefs.h + + +fi + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNUTLS" >&5 +$as_echo_n "checking for GNUTLS... " >&6; } + +if test -n "$GNUTLS_CFLAGS"; then + pkg_cv_GNUTLS_CFLAGS="$GNUTLS_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"gnutls >= 3.3.0\""; } >&5 + ($PKG_CONFIG --exists --print-errors "gnutls >= 3.3.0") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_GNUTLS_CFLAGS=`$PKG_CONFIG --cflags "gnutls >= 3.3.0" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$GNUTLS_LIBS"; then + pkg_cv_GNUTLS_LIBS="$GNUTLS_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"gnutls >= 3.3.0\""; } >&5 + ($PKG_CONFIG --exists --print-errors "gnutls >= 3.3.0") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_GNUTLS_LIBS=`$PKG_CONFIG --libs "gnutls >= 3.3.0" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + GNUTLS_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "gnutls >= 3.3.0" 2>&1` + else + GNUTLS_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "gnutls >= 3.3.0" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$GNUTLS_PKG_ERRORS" >&5 + + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: gnutls not found or < 3.3.0, TLS support will be disabled." >&5 +$as_echo "$as_me: WARNING: gnutls not found or < 3.3.0, TLS support will be disabled." >&2;} + +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: gnutls not found or < 3.3.0, TLS support will be disabled." >&5 +$as_echo "$as_me: WARNING: gnutls not found or < 3.3.0, TLS support will be disabled." >&2;} + +else + GNUTLS_CFLAGS=$pkg_cv_GNUTLS_CFLAGS + GNUTLS_LIBS=$pkg_cv_GNUTLS_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + +$as_echo "#define HAVE_GNUTLS 1" >>confdefs.h + + +fi + +if test "$GNUTLS_LIBS" != ""; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for default TLS session priority string" >&5 +$as_echo_n "checking for default TLS session priority string... " >&6; } + +# Check whether --with-tls-priority was given. +if test "${with_tls_priority+set}" = set; then : + withval=$with_tls_priority; tls_priority=$withval +else + tls_priority=NORMAL +fi + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tls_priority" >&5 +$as_echo "$tls_priority" >&6; } + +cat >>confdefs.h <<_ACEOF +#define TLS_PRIORITY "$tls_priority" +_ACEOF + + + # Check for APIs which may not be present. + old_LIBS="$LIBS" + LIBS="$GNUTLS_LIBS $LIBS" + for ac_func in \ + gnutls_base64_decode2 \ + gnutls_certificate_set_known_dh_params \ + gnutls_session_set_verify_cert +do : + as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` +ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" +if eval test \"x\$"$as_ac_var"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1 +_ACEOF + +fi +done + + LIBS="$old_LIBS" + +fi + +# Extract the first word of "valgrind", so it can be a program name with args. +set dummy valgrind; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_VALGRIND+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$VALGRIND"; then + ac_cv_prog_VALGRIND="$VALGRIND" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_VALGRIND="valgrind" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + test -z "$ac_cv_prog_VALGRIND" && ac_cv_prog_VALGRIND="no" +fi +fi +VALGRIND=$ac_cv_prog_VALGRIND +if test -n "$VALGRIND"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $VALGRIND" >&5 +$as_echo "$VALGRIND" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + +# Check whether --enable-valgrind was given. +if test "${enable_valgrind+set}" = set; then : + enableval=$enable_valgrind; enable_valgrind=yes +else + enable_valgrind=no +fi + +if test "x$enable_valgrind" = "xyes"; then : + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for VALGRIND" >&5 +$as_echo_n "checking for VALGRIND... " >&6; } + +if test -n "$VALGRIND_CFLAGS"; then + pkg_cv_VALGRIND_CFLAGS="$VALGRIND_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"valgrind\""; } >&5 + ($PKG_CONFIG --exists --print-errors "valgrind") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_VALGRIND_CFLAGS=`$PKG_CONFIG --cflags "valgrind" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$VALGRIND_LIBS"; then + pkg_cv_VALGRIND_LIBS="$VALGRIND_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"valgrind\""; } >&5 + ($PKG_CONFIG --exists --print-errors "valgrind") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_VALGRIND_LIBS=`$PKG_CONFIG --libs "valgrind" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + VALGRIND_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "valgrind" 2>&1` + else + VALGRIND_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "valgrind" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$VALGRIND_PKG_ERRORS" >&5 + + + as_fn_error $? "--enable-valgrind given, but Valgrind headers are not available" "$LINENO" 5 + +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + + as_fn_error $? "--enable-valgrind given, but Valgrind headers are not available" "$LINENO" 5 + +else + VALGRIND_CFLAGS=$pkg_cv_VALGRIND_CFLAGS + VALGRIND_LIBS=$pkg_cv_VALGRIND_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + +$as_echo "#define HAVE_VALGRIND 1" >>confdefs.h + + +fi + +fi + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for BASH_COMPLETION" >&5 +$as_echo_n "checking for BASH_COMPLETION... " >&6; } + +if test -n "$BASH_COMPLETION_CFLAGS"; then + pkg_cv_BASH_COMPLETION_CFLAGS="$BASH_COMPLETION_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"bash-completion >= 2.0\""; } >&5 + ($PKG_CONFIG --exists --print-errors "bash-completion >= 2.0") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_BASH_COMPLETION_CFLAGS=`$PKG_CONFIG --cflags "bash-completion >= 2.0" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$BASH_COMPLETION_LIBS"; then + pkg_cv_BASH_COMPLETION_LIBS="$BASH_COMPLETION_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"bash-completion >= 2.0\""; } >&5 + ($PKG_CONFIG --exists --print-errors "bash-completion >= 2.0") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_BASH_COMPLETION_LIBS=`$PKG_CONFIG --libs "bash-completion >= 2.0" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + BASH_COMPLETION_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "bash-completion >= 2.0" 2>&1` + else + BASH_COMPLETION_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "bash-completion >= 2.0" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$BASH_COMPLETION_PKG_ERRORS" >&5 + + + bash_completion=no + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: bash-completion not installed" >&5 +$as_echo "$as_me: WARNING: bash-completion not installed" >&2;} + +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + + bash_completion=no + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: bash-completion not installed" >&5 +$as_echo "$as_me: WARNING: bash-completion not installed" >&2;} + +else + BASH_COMPLETION_CFLAGS=$pkg_cv_BASH_COMPLETION_CFLAGS + BASH_COMPLETION_LIBS=$pkg_cv_BASH_COMPLETION_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + bash_completion=yes + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for bash-completions directory" >&5 +$as_echo_n "checking for bash-completions directory... " >&6; } + + +if test -n "$bashcompdir"; then + pkg_cv_bashcompdir="$bashcompdir" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"bash-completion\""; } >&5 + ($PKG_CONFIG --exists --print-errors "bash-completion") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_bashcompdir=`$PKG_CONFIG --variable="completionsdir" "bash-completion" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +bashcompdir=$pkg_cv_bashcompdir + +if test "x$bashcompdir" = x""; then : + +fi + + if test -z "$bashcompdir"; then : + + bashcompdir="${sysconfdir}/bash_completion.d" + +fi + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $bashcompdir" >&5 +$as_echo "$bashcompdir" >&6; } + + +fi + if test "x$bash_completion" = "xyes"; then + HAVE_BASH_COMPLETION_TRUE= + HAVE_BASH_COMPLETION_FALSE='#' +else + HAVE_BASH_COMPLETION_TRUE='#' + HAVE_BASH_COMPLETION_FALSE= +fi + + +# Extract the first word of "perl", so it can be a program name with args. +set dummy perl; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_PERL+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$PERL"; then + ac_cv_prog_PERL="$PERL" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_PERL="perl" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + test -z "$ac_cv_prog_PERL" && ac_cv_prog_PERL="no" +fi +fi +PERL=$ac_cv_prog_PERL +if test -n "$PERL"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PERL" >&5 +$as_echo "$PERL" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +if test "x$PERL" != "xno"; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we have perl Pod::Man and Pod::Simple" >&5 +$as_echo_n "checking if we have perl Pod::Man and Pod::Simple... " >&6; } + if $PERL -MPod::Man -MPod::Simple -e 1 >&5 2>&1; then : + + enable_pod=yes + +else + + enable_pod=no + +fi + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_pod" >&5 +$as_echo "$enable_pod" >&6; } + +fi + if test "x$PERL" != "xno" && test "x$enable_pod" = "xyes"; then + HAVE_POD_TRUE= + HAVE_POD_FALSE='#' +else + HAVE_POD_TRUE='#' + HAVE_POD_FALSE= +fi + + +PODWRAPPER="$PERL $(pwd)/podwrapper.pl" + + +# Check whether --enable-plugins was given. +if test "${enable_plugins+set}" = set; then : + enableval=$enable_plugins; +fi + + if test "x$enable_plugins" != "xno"; then + HAVE_PLUGINS_TRUE= + HAVE_PLUGINS_FALSE='#' +else + HAVE_PLUGINS_TRUE='#' + HAVE_PLUGINS_FALSE= +fi + + +# Check whether --enable-perl was given. +if test "${enable_perl+set}" = set; then : + enableval=$enable_perl; +else + enable_perl=yes +fi + +if test "x$PERL" != "xno" && test "x$enable_perl" != "xno"; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Perl embed archlib" >&5 +$as_echo_n "checking for Perl embed archlib... " >&6; } + PERL_ARCHLIB="$($PERL -MConfig -e 'print $Config{archlib}')" + if test -n "$PERL_ARCHLIB" ; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PERL_ARCHLIB" >&5 +$as_echo "$PERL_ARCHLIB" >&6; } + +else + + { $as_echo "$as_me:${as_lineno-$LINENO}: Perl embed module disabled" >&5 +$as_echo "$as_me: Perl embed module disabled" >&6;} + enable_perl=no + +fi + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Perl embed CFLAGS" >&5 +$as_echo_n "checking for Perl embed CFLAGS... " >&6; } + PERL_CFLAGS="$($PERL -MExtUtils::Embed -e 'ccflags')" + if test -n "$PERL_CFLAGS" ; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PERL_CFLAGS" >&5 +$as_echo "$PERL_CFLAGS" >&6; } + +else + + { $as_echo "$as_me:${as_lineno-$LINENO}: Perl embed module disabled" >&5 +$as_echo "$as_me: Perl embed module disabled" >&6;} + enable_perl=no + +fi + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Perl embed LDOPTS" >&5 +$as_echo_n "checking for Perl embed LDOPTS... " >&6; } + PERL_LDOPTS="$($PERL -MExtUtils::Embed -e 'ldopts')" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PERL_LDOPTS" >&5 +$as_echo "$PERL_LDOPTS" >&6; } + + +fi + if test "x$enable_perl" != "xno" && test "x$PERL" != "xno"; then + HAVE_PERL_TRUE= + HAVE_PERL_FALSE='#' +else + HAVE_PERL_TRUE='#' + HAVE_PERL_FALSE= +fi + + + + + +# Extract the first word of "python", so it can be a program name with args. +set dummy python; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_PYTHON+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$PYTHON"; then + ac_cv_prog_PYTHON="$PYTHON" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_PYTHON="python" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + test -z "$ac_cv_prog_PYTHON" && ac_cv_prog_PYTHON="no" +fi +fi +PYTHON=$ac_cv_prog_PYTHON +if test -n "$PYTHON"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PYTHON" >&5 +$as_echo "$PYTHON" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +# Check whether --enable-python was given. +if test "${enable_python+set}" = set; then : + enableval=$enable_python; +else + enable_python=yes +fi + +if test "x$PYTHON" != "xno" && test "x$enable_python" != "xno"; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking version of $PYTHON" >&5 +$as_echo_n "checking version of $PYTHON... " >&6; } + PYTHON_VERSION_MAJOR=`$PYTHON -c "import sys; print (sys.version_info[0])"` + PYTHON_VERSION_MINOR=`$PYTHON -c "import sys; print (sys.version_info[1])"` + PYTHON_VERSION="$PYTHON_VERSION_MAJOR.$PYTHON_VERSION_MINOR" + if test -n "$PYTHON_VERSION"; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PYTHON_VERSION" >&5 +$as_echo "$PYTHON_VERSION" >&6; } + +else + + { $as_echo "$as_me:${as_lineno-$LINENO}: Python embed module disabled" >&5 +$as_echo "$as_me: Python embed module disabled" >&6;} + enable_python=no + +fi + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for PYTHON" >&5 +$as_echo_n "checking for PYTHON... " >&6; } + +if test -n "$PYTHON_CFLAGS"; then + pkg_cv_PYTHON_CFLAGS="$PYTHON_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python-\"\$PYTHON_VERSION\"\""; } >&5 + ($PKG_CONFIG --exists --print-errors "python-"$PYTHON_VERSION"") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_PYTHON_CFLAGS=`$PKG_CONFIG --cflags "python-"$PYTHON_VERSION"" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$PYTHON_LIBS"; then + pkg_cv_PYTHON_LIBS="$PYTHON_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python-\"\$PYTHON_VERSION\"\""; } >&5 + ($PKG_CONFIG --exists --print-errors "python-"$PYTHON_VERSION"") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_PYTHON_LIBS=`$PKG_CONFIG --libs "python-"$PYTHON_VERSION"" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + PYTHON_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "python-"$PYTHON_VERSION"" 2>&1` + else + PYTHON_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "python-"$PYTHON_VERSION"" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$PYTHON_PKG_ERRORS" >&5 + + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for PYTHON" >&5 +$as_echo_n "checking for PYTHON... " >&6; } + +if test -n "$PYTHON_CFLAGS"; then + pkg_cv_PYTHON_CFLAGS="$PYTHON_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python\""; } >&5 + ($PKG_CONFIG --exists --print-errors "python") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_PYTHON_CFLAGS=`$PKG_CONFIG --cflags "python" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$PYTHON_LIBS"; then + pkg_cv_PYTHON_LIBS="$PYTHON_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python\""; } >&5 + ($PKG_CONFIG --exists --print-errors "python") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_PYTHON_LIBS=`$PKG_CONFIG --libs "python" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + PYTHON_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "python" 2>&1` + else + PYTHON_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "python" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$PYTHON_PKG_ERRORS" >&5 + + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: python $PYTHON_VERSION not found" >&5 +$as_echo "$as_me: WARNING: python $PYTHON_VERSION not found" >&2;} + enable_python=no + +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: python $PYTHON_VERSION not found" >&5 +$as_echo "$as_me: WARNING: python $PYTHON_VERSION not found" >&2;} + enable_python=no + +else + PYTHON_CFLAGS=$pkg_cv_PYTHON_CFLAGS + PYTHON_LIBS=$pkg_cv_PYTHON_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + + +$as_echo "#define HAVE_PYTHON 1" >>confdefs.h + + +fi + +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for PYTHON" >&5 +$as_echo_n "checking for PYTHON... " >&6; } + +if test -n "$PYTHON_CFLAGS"; then + pkg_cv_PYTHON_CFLAGS="$PYTHON_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python\""; } >&5 + ($PKG_CONFIG --exists --print-errors "python") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_PYTHON_CFLAGS=`$PKG_CONFIG --cflags "python" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$PYTHON_LIBS"; then + pkg_cv_PYTHON_LIBS="$PYTHON_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python\""; } >&5 + ($PKG_CONFIG --exists --print-errors "python") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_PYTHON_LIBS=`$PKG_CONFIG --libs "python" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + PYTHON_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "python" 2>&1` + else + PYTHON_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "python" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$PYTHON_PKG_ERRORS" >&5 + + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: python $PYTHON_VERSION not found" >&5 +$as_echo "$as_me: WARNING: python $PYTHON_VERSION not found" >&2;} + enable_python=no + +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: python $PYTHON_VERSION not found" >&5 +$as_echo "$as_me: WARNING: python $PYTHON_VERSION not found" >&2;} + enable_python=no + +else + PYTHON_CFLAGS=$pkg_cv_PYTHON_CFLAGS + PYTHON_LIBS=$pkg_cv_PYTHON_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + + +$as_echo "#define HAVE_PYTHON 1" >>confdefs.h + + +fi + +else + PYTHON_CFLAGS=$pkg_cv_PYTHON_CFLAGS + PYTHON_LIBS=$pkg_cv_PYTHON_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + + +$as_echo "#define HAVE_PYTHON 1" >>confdefs.h + + +fi + + old_LIBS="$LIBS" + + PYTHON_BLDLIBRARY=`$PYTHON -c "import distutils.sysconfig; \ + print (distutils.sysconfig.get_config_var('BLDLIBRARY'))"` + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for PyString_FromString in -lc" >&5 +$as_echo_n "checking for PyString_FromString in -lc... " >&6; } +if ${ac_cv_lib_c_PyString_FromString+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-lc $PYTHON_BLDLIBRARY $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char PyString_FromString (); +int +main () +{ +return PyString_FromString (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_c_PyString_FromString=yes +else + ac_cv_lib_c_PyString_FromString=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_PyString_FromString" >&5 +$as_echo "$ac_cv_lib_c_PyString_FromString" >&6; } +if test "x$ac_cv_lib_c_PyString_FromString" = xyes; then : + +$as_echo "#define HAVE_PYSTRING_FROMSTRING 1" >>confdefs.h + +fi + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for PyString_AsString in -lc" >&5 +$as_echo_n "checking for PyString_AsString in -lc... " >&6; } +if ${ac_cv_lib_c_PyString_AsString+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-lc $PYTHON_BLDLIBRARY $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char PyString_AsString (); +int +main () +{ +return PyString_AsString (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_c_PyString_AsString=yes +else + ac_cv_lib_c_PyString_AsString=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_PyString_AsString" >&5 +$as_echo "$ac_cv_lib_c_PyString_AsString" >&6; } +if test "x$ac_cv_lib_c_PyString_AsString" = xyes; then : + +$as_echo "#define HAVE_PYSTRING_ASSTRING 1" >>confdefs.h + +fi + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for PyUnicode_AsUTF8 in -lc" >&5 +$as_echo_n "checking for PyUnicode_AsUTF8 in -lc... " >&6; } +if ${ac_cv_lib_c_PyUnicode_AsUTF8+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-lc $PYTHON_BLDLIBRARY $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char PyUnicode_AsUTF8 (); +int +main () +{ +return PyUnicode_AsUTF8 (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_c_PyUnicode_AsUTF8=yes +else + ac_cv_lib_c_PyUnicode_AsUTF8=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_PyUnicode_AsUTF8" >&5 +$as_echo "$ac_cv_lib_c_PyUnicode_AsUTF8" >&6; } +if test "x$ac_cv_lib_c_PyUnicode_AsUTF8" = xyes; then : + +$as_echo "#define HAVE_PYUNICODE_ASUTF8 1" >>confdefs.h + +fi + + + LIBS="$old_LIBS" + + +fi + if test "x$enable_python" != "xno" && test "x$PYTHON" != "xno"; then + HAVE_PYTHON_TRUE= + HAVE_PYTHON_FALSE='#' +else + HAVE_PYTHON_TRUE='#' + HAVE_PYTHON_FALSE= +fi + + + + + + + + # checking for ocamlc + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ocamlc", so it can be a program name with args. +set dummy ${ac_tool_prefix}ocamlc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OCAMLC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OCAMLC"; then + ac_cv_prog_OCAMLC="$OCAMLC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OCAMLC="${ac_tool_prefix}ocamlc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OCAMLC=$ac_cv_prog_OCAMLC +if test -n "$OCAMLC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLC" >&5 +$as_echo "$OCAMLC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OCAMLC"; then + ac_ct_OCAMLC=$OCAMLC + # Extract the first word of "ocamlc", so it can be a program name with args. +set dummy ocamlc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OCAMLC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OCAMLC"; then + ac_cv_prog_ac_ct_OCAMLC="$ac_ct_OCAMLC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OCAMLC="ocamlc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OCAMLC=$ac_cv_prog_ac_ct_OCAMLC +if test -n "$ac_ct_OCAMLC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLC" >&5 +$as_echo "$ac_ct_OCAMLC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OCAMLC" = x; then + OCAMLC="no" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OCAMLC=$ac_ct_OCAMLC + fi +else + OCAMLC="$ac_cv_prog_OCAMLC" +fi + + + if test "$OCAMLC" != "no"; then + OCAMLVERSION=`$OCAMLC -v | sed -n -e 's|.*version* *\(.*\)$|\1|p'` + { $as_echo "$as_me:${as_lineno-$LINENO}: result: OCaml version is $OCAMLVERSION" >&5 +$as_echo "OCaml version is $OCAMLVERSION" >&6; } + # If OCAMLLIB is set, use it + if test "$OCAMLLIB" = ""; then + OCAMLLIB=`$OCAMLC -where 2>/dev/null || $OCAMLC -v|tail -1|cut -d ' ' -f 4` + else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: OCAMLLIB previously set; preserving it." >&5 +$as_echo "OCAMLLIB previously set; preserving it." >&6; } + fi + { $as_echo "$as_me:${as_lineno-$LINENO}: result: OCaml library path is $OCAMLLIB" >&5 +$as_echo "OCaml library path is $OCAMLLIB" >&6; } + + + + + # checking for ocamlopt + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ocamlopt", so it can be a program name with args. +set dummy ${ac_tool_prefix}ocamlopt; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OCAMLOPT+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OCAMLOPT"; then + ac_cv_prog_OCAMLOPT="$OCAMLOPT" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OCAMLOPT="${ac_tool_prefix}ocamlopt" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OCAMLOPT=$ac_cv_prog_OCAMLOPT +if test -n "$OCAMLOPT"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLOPT" >&5 +$as_echo "$OCAMLOPT" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OCAMLOPT"; then + ac_ct_OCAMLOPT=$OCAMLOPT + # Extract the first word of "ocamlopt", so it can be a program name with args. +set dummy ocamlopt; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OCAMLOPT+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OCAMLOPT"; then + ac_cv_prog_ac_ct_OCAMLOPT="$ac_ct_OCAMLOPT" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OCAMLOPT="ocamlopt" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OCAMLOPT=$ac_cv_prog_ac_ct_OCAMLOPT +if test -n "$ac_ct_OCAMLOPT"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLOPT" >&5 +$as_echo "$ac_ct_OCAMLOPT" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OCAMLOPT" = x; then + OCAMLOPT="no" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OCAMLOPT=$ac_ct_OCAMLOPT + fi +else + OCAMLOPT="$ac_cv_prog_OCAMLOPT" +fi + + OCAMLBEST=byte + if test "$OCAMLOPT" = "no"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Cannot find ocamlopt; bytecode compilation only." >&5 +$as_echo "$as_me: WARNING: Cannot find ocamlopt; bytecode compilation only." >&2;} + else + TMPVERSION=`$OCAMLOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' ` + if test "$TMPVERSION" != "$OCAMLVERSION" ; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: versions differs from ocamlc; ocamlopt discarded." >&5 +$as_echo "versions differs from ocamlc; ocamlopt discarded." >&6; } + OCAMLOPT=no + else + OCAMLBEST=opt + fi + fi + + + + # checking for ocamlc.opt + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ocamlc.opt", so it can be a program name with args. +set dummy ${ac_tool_prefix}ocamlc.opt; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OCAMLCDOTOPT+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OCAMLCDOTOPT"; then + ac_cv_prog_OCAMLCDOTOPT="$OCAMLCDOTOPT" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OCAMLCDOTOPT="${ac_tool_prefix}ocamlc.opt" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OCAMLCDOTOPT=$ac_cv_prog_OCAMLCDOTOPT +if test -n "$OCAMLCDOTOPT"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLCDOTOPT" >&5 +$as_echo "$OCAMLCDOTOPT" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OCAMLCDOTOPT"; then + ac_ct_OCAMLCDOTOPT=$OCAMLCDOTOPT + # Extract the first word of "ocamlc.opt", so it can be a program name with args. +set dummy ocamlc.opt; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OCAMLCDOTOPT+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OCAMLCDOTOPT"; then + ac_cv_prog_ac_ct_OCAMLCDOTOPT="$ac_ct_OCAMLCDOTOPT" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OCAMLCDOTOPT="ocamlc.opt" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OCAMLCDOTOPT=$ac_cv_prog_ac_ct_OCAMLCDOTOPT +if test -n "$ac_ct_OCAMLCDOTOPT"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLCDOTOPT" >&5 +$as_echo "$ac_ct_OCAMLCDOTOPT" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OCAMLCDOTOPT" = x; then + OCAMLCDOTOPT="no" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OCAMLCDOTOPT=$ac_ct_OCAMLCDOTOPT + fi +else + OCAMLCDOTOPT="$ac_cv_prog_OCAMLCDOTOPT" +fi + + if test "$OCAMLCDOTOPT" != "no"; then + TMPVERSION=`$OCAMLCDOTOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' ` + if test "$TMPVERSION" != "$OCAMLVERSION" ; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: versions differs from ocamlc; ocamlc.opt discarded." >&5 +$as_echo "versions differs from ocamlc; ocamlc.opt discarded." >&6; } + else + OCAMLC=$OCAMLCDOTOPT + fi + fi + + # checking for ocamlopt.opt + if test "$OCAMLOPT" != "no" ; then + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ocamlopt.opt", so it can be a program name with args. +set dummy ${ac_tool_prefix}ocamlopt.opt; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OCAMLOPTDOTOPT+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OCAMLOPTDOTOPT"; then + ac_cv_prog_OCAMLOPTDOTOPT="$OCAMLOPTDOTOPT" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OCAMLOPTDOTOPT="${ac_tool_prefix}ocamlopt.opt" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OCAMLOPTDOTOPT=$ac_cv_prog_OCAMLOPTDOTOPT +if test -n "$OCAMLOPTDOTOPT"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLOPTDOTOPT" >&5 +$as_echo "$OCAMLOPTDOTOPT" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OCAMLOPTDOTOPT"; then + ac_ct_OCAMLOPTDOTOPT=$OCAMLOPTDOTOPT + # Extract the first word of "ocamlopt.opt", so it can be a program name with args. +set dummy ocamlopt.opt; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OCAMLOPTDOTOPT+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OCAMLOPTDOTOPT"; then + ac_cv_prog_ac_ct_OCAMLOPTDOTOPT="$ac_ct_OCAMLOPTDOTOPT" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OCAMLOPTDOTOPT="ocamlopt.opt" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OCAMLOPTDOTOPT=$ac_cv_prog_ac_ct_OCAMLOPTDOTOPT +if test -n "$ac_ct_OCAMLOPTDOTOPT"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLOPTDOTOPT" >&5 +$as_echo "$ac_ct_OCAMLOPTDOTOPT" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OCAMLOPTDOTOPT" = x; then + OCAMLOPTDOTOPT="no" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OCAMLOPTDOTOPT=$ac_ct_OCAMLOPTDOTOPT + fi +else + OCAMLOPTDOTOPT="$ac_cv_prog_OCAMLOPTDOTOPT" +fi + + if test "$OCAMLOPTDOTOPT" != "no"; then + TMPVERSION=`$OCAMLOPTDOTOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' ` + if test "$TMPVERSION" != "$OCAMLVERSION" ; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: version differs from ocamlc; ocamlopt.opt discarded." >&5 +$as_echo "version differs from ocamlc; ocamlopt.opt discarded." >&6; } + else + OCAMLOPT=$OCAMLOPTDOTOPT + fi + fi + fi + + + fi + + + + # checking for ocaml toplevel + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ocaml", so it can be a program name with args. +set dummy ${ac_tool_prefix}ocaml; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OCAML+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OCAML"; then + ac_cv_prog_OCAML="$OCAML" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OCAML="${ac_tool_prefix}ocaml" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OCAML=$ac_cv_prog_OCAML +if test -n "$OCAML"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAML" >&5 +$as_echo "$OCAML" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OCAML"; then + ac_ct_OCAML=$OCAML + # Extract the first word of "ocaml", so it can be a program name with args. +set dummy ocaml; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OCAML+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OCAML"; then + ac_cv_prog_ac_ct_OCAML="$ac_ct_OCAML" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OCAML="ocaml" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OCAML=$ac_cv_prog_ac_ct_OCAML +if test -n "$ac_ct_OCAML"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAML" >&5 +$as_echo "$ac_ct_OCAML" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OCAML" = x; then + OCAML="no" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OCAML=$ac_ct_OCAML + fi +else + OCAML="$ac_cv_prog_OCAML" +fi + + + # checking for ocamldep + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ocamldep", so it can be a program name with args. +set dummy ${ac_tool_prefix}ocamldep; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OCAMLDEP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OCAMLDEP"; then + ac_cv_prog_OCAMLDEP="$OCAMLDEP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OCAMLDEP="${ac_tool_prefix}ocamldep" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OCAMLDEP=$ac_cv_prog_OCAMLDEP +if test -n "$OCAMLDEP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLDEP" >&5 +$as_echo "$OCAMLDEP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OCAMLDEP"; then + ac_ct_OCAMLDEP=$OCAMLDEP + # Extract the first word of "ocamldep", so it can be a program name with args. +set dummy ocamldep; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OCAMLDEP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OCAMLDEP"; then + ac_cv_prog_ac_ct_OCAMLDEP="$ac_ct_OCAMLDEP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OCAMLDEP="ocamldep" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OCAMLDEP=$ac_cv_prog_ac_ct_OCAMLDEP +if test -n "$ac_ct_OCAMLDEP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLDEP" >&5 +$as_echo "$ac_ct_OCAMLDEP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OCAMLDEP" = x; then + OCAMLDEP="no" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OCAMLDEP=$ac_ct_OCAMLDEP + fi +else + OCAMLDEP="$ac_cv_prog_OCAMLDEP" +fi + + + # checking for ocamlmktop + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ocamlmktop", so it can be a program name with args. +set dummy ${ac_tool_prefix}ocamlmktop; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OCAMLMKTOP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OCAMLMKTOP"; then + ac_cv_prog_OCAMLMKTOP="$OCAMLMKTOP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OCAMLMKTOP="${ac_tool_prefix}ocamlmktop" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OCAMLMKTOP=$ac_cv_prog_OCAMLMKTOP +if test -n "$OCAMLMKTOP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLMKTOP" >&5 +$as_echo "$OCAMLMKTOP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OCAMLMKTOP"; then + ac_ct_OCAMLMKTOP=$OCAMLMKTOP + # Extract the first word of "ocamlmktop", so it can be a program name with args. +set dummy ocamlmktop; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OCAMLMKTOP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OCAMLMKTOP"; then + ac_cv_prog_ac_ct_OCAMLMKTOP="$ac_ct_OCAMLMKTOP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OCAMLMKTOP="ocamlmktop" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OCAMLMKTOP=$ac_cv_prog_ac_ct_OCAMLMKTOP +if test -n "$ac_ct_OCAMLMKTOP"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLMKTOP" >&5 +$as_echo "$ac_ct_OCAMLMKTOP" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OCAMLMKTOP" = x; then + OCAMLMKTOP="no" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OCAMLMKTOP=$ac_ct_OCAMLMKTOP + fi +else + OCAMLMKTOP="$ac_cv_prog_OCAMLMKTOP" +fi + + + # checking for ocamlmklib + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ocamlmklib", so it can be a program name with args. +set dummy ${ac_tool_prefix}ocamlmklib; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OCAMLMKLIB+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OCAMLMKLIB"; then + ac_cv_prog_OCAMLMKLIB="$OCAMLMKLIB" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OCAMLMKLIB="${ac_tool_prefix}ocamlmklib" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OCAMLMKLIB=$ac_cv_prog_OCAMLMKLIB +if test -n "$OCAMLMKLIB"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLMKLIB" >&5 +$as_echo "$OCAMLMKLIB" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OCAMLMKLIB"; then + ac_ct_OCAMLMKLIB=$OCAMLMKLIB + # Extract the first word of "ocamlmklib", so it can be a program name with args. +set dummy ocamlmklib; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OCAMLMKLIB+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OCAMLMKLIB"; then + ac_cv_prog_ac_ct_OCAMLMKLIB="$ac_ct_OCAMLMKLIB" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OCAMLMKLIB="ocamlmklib" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OCAMLMKLIB=$ac_cv_prog_ac_ct_OCAMLMKLIB +if test -n "$ac_ct_OCAMLMKLIB"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLMKLIB" >&5 +$as_echo "$ac_ct_OCAMLMKLIB" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OCAMLMKLIB" = x; then + OCAMLMKLIB="no" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OCAMLMKLIB=$ac_ct_OCAMLMKLIB + fi +else + OCAMLMKLIB="$ac_cv_prog_OCAMLMKLIB" +fi + + + # checking for ocamldoc + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ocamldoc", so it can be a program name with args. +set dummy ${ac_tool_prefix}ocamldoc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OCAMLDOC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OCAMLDOC"; then + ac_cv_prog_OCAMLDOC="$OCAMLDOC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OCAMLDOC="${ac_tool_prefix}ocamldoc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OCAMLDOC=$ac_cv_prog_OCAMLDOC +if test -n "$OCAMLDOC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLDOC" >&5 +$as_echo "$OCAMLDOC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OCAMLDOC"; then + ac_ct_OCAMLDOC=$OCAMLDOC + # Extract the first word of "ocamldoc", so it can be a program name with args. +set dummy ocamldoc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OCAMLDOC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OCAMLDOC"; then + ac_cv_prog_ac_ct_OCAMLDOC="$ac_ct_OCAMLDOC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OCAMLDOC="ocamldoc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OCAMLDOC=$ac_cv_prog_ac_ct_OCAMLDOC +if test -n "$ac_ct_OCAMLDOC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLDOC" >&5 +$as_echo "$ac_ct_OCAMLDOC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OCAMLDOC" = x; then + OCAMLDOC="no" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OCAMLDOC=$ac_ct_OCAMLDOC + fi +else + OCAMLDOC="$ac_cv_prog_OCAMLDOC" +fi + + + # checking for ocamlbuild + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ocamlbuild", so it can be a program name with args. +set dummy ${ac_tool_prefix}ocamlbuild; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_OCAMLBUILD+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$OCAMLBUILD"; then + ac_cv_prog_OCAMLBUILD="$OCAMLBUILD" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OCAMLBUILD="${ac_tool_prefix}ocamlbuild" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +OCAMLBUILD=$ac_cv_prog_OCAMLBUILD +if test -n "$OCAMLBUILD"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLBUILD" >&5 +$as_echo "$OCAMLBUILD" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_OCAMLBUILD"; then + ac_ct_OCAMLBUILD=$OCAMLBUILD + # Extract the first word of "ocamlbuild", so it can be a program name with args. +set dummy ocamlbuild; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_OCAMLBUILD+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_OCAMLBUILD"; then + ac_cv_prog_ac_ct_OCAMLBUILD="$ac_ct_OCAMLBUILD" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OCAMLBUILD="ocamlbuild" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_OCAMLBUILD=$ac_cv_prog_ac_ct_OCAMLBUILD +if test -n "$ac_ct_OCAMLBUILD"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLBUILD" >&5 +$as_echo "$ac_ct_OCAMLBUILD" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_OCAMLBUILD" = x; then + OCAMLBUILD="no" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + OCAMLBUILD=$ac_ct_OCAMLBUILD + fi +else + OCAMLBUILD="$ac_cv_prog_OCAMLBUILD" +fi + + +# Check whether --enable-ocaml was given. +if test "${enable_ocaml+set}" = set; then : + enableval=$enable_ocaml; +else + enable_ocaml=yes +fi + +if test "x$OCAMLOPT" != "xno" && test "x$enable_ocaml" != "xno"; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $OCAMLOPT can create a shared library" >&5 +$as_echo_n "checking if $OCAMLOPT can create a shared library... " >&6; } + echo 'print_endline "test"' > conftest.ml + if $OCAMLOPT $OCAMLOPTFLAGS -output-obj -runtime-variant _pic -o conftest.so conftest.ml >&5 2>&1; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + ocaml_link_shared=yes + +else + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +fi + rm -f conftest.ml conftest.cmi conftest.cmx conftest.so conftest.o + +fi + if test "x$OCAMLOPT" != "xno" && + test "x$ocaml_link_shared" = "xyes"; then + HAVE_OCAML_TRUE= + HAVE_OCAML_FALSE='#' +else + HAVE_OCAML_TRUE='#' + HAVE_OCAML_FALSE= +fi + + +# Extract the first word of "cargo", so it can be a program name with args. +set dummy cargo; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CARGO+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CARGO"; then + ac_cv_prog_CARGO="$CARGO" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CARGO="cargo" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + test -z "$ac_cv_prog_CARGO" && ac_cv_prog_CARGO="no" +fi +fi +CARGO=$ac_cv_prog_CARGO +if test -n "$CARGO"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CARGO" >&5 +$as_echo "$CARGO" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +# Check whether --enable-rust was given. +if test "${enable_rust+set}" = set; then : + enableval=$enable_rust; +else + enable_rust=yes +fi + + if test "x$CARGO" != "xno" && test "x$enable_rust" != "xno"; then + HAVE_RUST_TRUE= + HAVE_RUST_FALSE='#' +else + HAVE_RUST_TRUE='#' + HAVE_RUST_FALSE= +fi + + +# Extract the first word of "ruby", so it can be a program name with args. +set dummy ruby; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_RUBY+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$RUBY"; then + ac_cv_prog_RUBY="$RUBY" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_RUBY="ruby" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + test -z "$ac_cv_prog_RUBY" && ac_cv_prog_RUBY="no" +fi +fi +RUBY=$ac_cv_prog_RUBY +if test -n "$RUBY"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RUBY" >&5 +$as_echo "$RUBY" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +# Check whether --enable-ruby was given. +if test "${enable_ruby+set}" = set; then : + enableval=$enable_ruby; +else + enable_ruby=yes +fi + +if test "x$RUBY" != "xno" && test "x$enable_ruby" != "xno"; then : + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for RUBY" >&5 +$as_echo_n "checking for RUBY... " >&6; } + +if test -n "$RUBY_CFLAGS"; then + pkg_cv_RUBY_CFLAGS="$RUBY_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"ruby\""; } >&5 + ($PKG_CONFIG --exists --print-errors "ruby") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_RUBY_CFLAGS=`$PKG_CONFIG --cflags "ruby" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$RUBY_LIBS"; then + pkg_cv_RUBY_LIBS="$RUBY_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"ruby\""; } >&5 + ($PKG_CONFIG --exists --print-errors "ruby") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_RUBY_LIBS=`$PKG_CONFIG --libs "ruby" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + RUBY_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "ruby" 2>&1` + else + RUBY_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "ruby" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$RUBY_PKG_ERRORS" >&5 + + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: ruby not found" >&5 +$as_echo "$as_me: WARNING: ruby not found" >&2;} + enable_ruby=no + +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: ruby not found" >&5 +$as_echo "$as_me: WARNING: ruby not found" >&2;} + enable_ruby=no + +else + RUBY_CFLAGS=$pkg_cv_RUBY_CFLAGS + RUBY_LIBS=$pkg_cv_RUBY_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + +fi + +fi + if test "x$RUBY" != "xno" && + test "x$enable_ruby" = "xyes"; then + HAVE_RUBY_TRUE= + HAVE_RUBY_FALSE='#' +else + HAVE_RUBY_TRUE='#' + HAVE_RUBY_FALSE= +fi + + +# Check whether --enable-tcl was given. +if test "${enable_tcl+set}" = set; then : + enableval=$enable_tcl; +else + enable_tcl=yes +fi + +if test "x$enable_tcl" != "xno"; then : + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for TCL" >&5 +$as_echo_n "checking for TCL... " >&6; } + +if test -n "$TCL_CFLAGS"; then + pkg_cv_TCL_CFLAGS="$TCL_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"tcl\""; } >&5 + ($PKG_CONFIG --exists --print-errors "tcl") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_TCL_CFLAGS=`$PKG_CONFIG --cflags "tcl" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$TCL_LIBS"; then + pkg_cv_TCL_LIBS="$TCL_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"tcl\""; } >&5 + ($PKG_CONFIG --exists --print-errors "tcl") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_TCL_LIBS=`$PKG_CONFIG --libs "tcl" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + TCL_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "tcl" 2>&1` + else + TCL_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "tcl" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$TCL_PKG_ERRORS" >&5 + + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Tcl not found" >&5 +$as_echo "$as_me: WARNING: Tcl not found" >&2;} + enable_tcl=no + +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Tcl not found" >&5 +$as_echo "$as_me: WARNING: Tcl not found" >&2;} + enable_tcl=no + +else + TCL_CFLAGS=$pkg_cv_TCL_CFLAGS + TCL_LIBS=$pkg_cv_TCL_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + +fi + +fi + if test "x$enable_tcl" = "xyes"; then + HAVE_TCL_TRUE= + HAVE_TCL_FALSE='#' +else + HAVE_TCL_TRUE='#' + HAVE_TCL_FALSE= +fi + + +# Check whether --enable-lua was given. +if test "${enable_lua+set}" = set; then : + enableval=$enable_lua; +else + enable_lua=yes +fi + +if test "x$enable_lua" != "xno"; then : + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for LUA" >&5 +$as_echo_n "checking for LUA... " >&6; } + +if test -n "$LUA_CFLAGS"; then + pkg_cv_LUA_CFLAGS="$LUA_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"lua\""; } >&5 + ($PKG_CONFIG --exists --print-errors "lua") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_LUA_CFLAGS=`$PKG_CONFIG --cflags "lua" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$LUA_LIBS"; then + pkg_cv_LUA_LIBS="$LUA_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"lua\""; } >&5 + ($PKG_CONFIG --exists --print-errors "lua") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_LUA_LIBS=`$PKG_CONFIG --libs "lua" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + LUA_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "lua" 2>&1` + else + LUA_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "lua" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$LUA_PKG_ERRORS" >&5 + + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Lua not found" >&5 +$as_echo "$as_me: WARNING: Lua not found" >&2;} + enable_lua=no + +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Lua not found" >&5 +$as_echo "$as_me: WARNING: Lua not found" >&2;} + enable_lua=no + +else + LUA_CFLAGS=$pkg_cv_LUA_CFLAGS + LUA_LIBS=$pkg_cv_LUA_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + + old_LIBS="$LIBS" + LIBS="$LUA_LIBS $LIBS" + for ac_func in lua_isinteger +do : + ac_fn_c_check_func "$LINENO" "lua_isinteger" "ac_cv_func_lua_isinteger" +if test "x$ac_cv_func_lua_isinteger" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_LUA_ISINTEGER 1 +_ACEOF + +fi +done + + LIBS="$old_LIBS" + +fi + +fi + if test "x$enable_lua" = "xyes"; then + HAVE_LUA_TRUE= + HAVE_LUA_FALSE='#' +else + HAVE_LUA_TRUE='#' + HAVE_LUA_FALSE= +fi + + + +# Check whether --with-curl was given. +if test "${with_curl+set}" = set; then : + withval=$with_curl; +else + with_curl=check +fi + +if test "$with_curl" != "no"; then : + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for CURL" >&5 +$as_echo_n "checking for CURL... " >&6; } + +if test -n "$CURL_CFLAGS"; then + pkg_cv_CURL_CFLAGS="$CURL_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libcurl\""; } >&5 + ($PKG_CONFIG --exists --print-errors "libcurl") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_CURL_CFLAGS=`$PKG_CONFIG --cflags "libcurl" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$CURL_LIBS"; then + pkg_cv_CURL_LIBS="$CURL_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libcurl\""; } >&5 + ($PKG_CONFIG --exists --print-errors "libcurl") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_CURL_LIBS=`$PKG_CONFIG --libs "libcurl" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + CURL_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libcurl" 2>&1` + else + CURL_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libcurl" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$CURL_PKG_ERRORS" >&5 + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: curl not found, curl plugin will be disabled" >&5 +$as_echo "$as_me: WARNING: curl not found, curl plugin will be disabled" >&2;} +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: curl not found, curl plugin will be disabled" >&5 +$as_echo "$as_me: WARNING: curl not found, curl plugin will be disabled" >&2;} +else + CURL_CFLAGS=$pkg_cv_CURL_CFLAGS + CURL_LIBS=$pkg_cv_CURL_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + +$as_echo "#define HAVE_CURL 1" >>confdefs.h + + ac_fn_c_check_decl "$LINENO" "CURLOPT_UNIX_SOCKET_PATH" "ac_cv_have_decl_CURLOPT_UNIX_SOCKET_PATH" "#include +" +if test "x$ac_cv_have_decl_CURLOPT_UNIX_SOCKET_PATH" = xyes; then : + + +$as_echo "#define HAVE_CURLOPT_UNIX_SOCKET_PATH 1" >>confdefs.h + + +fi + + +fi + +fi + if test "x$CURL_LIBS" != "x"; then + HAVE_CURL_TRUE= + HAVE_CURL_FALSE='#' +else + HAVE_CURL_TRUE='#' + HAVE_CURL_FALSE= +fi + + + +# Check whether --with-ssh was given. +if test "${with_ssh+set}" = set; then : + withval=$with_ssh; +else + with_ssh=check +fi + +if test "$with_ssh" != "no"; then : + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for SSH" >&5 +$as_echo_n "checking for SSH... " >&6; } + +if test -n "$SSH_CFLAGS"; then + pkg_cv_SSH_CFLAGS="$SSH_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libssh >= 0.8.0\""; } >&5 + ($PKG_CONFIG --exists --print-errors "libssh >= 0.8.0") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_SSH_CFLAGS=`$PKG_CONFIG --cflags "libssh >= 0.8.0" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$SSH_LIBS"; then + pkg_cv_SSH_LIBS="$SSH_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libssh >= 0.8.0\""; } >&5 + ($PKG_CONFIG --exists --print-errors "libssh >= 0.8.0") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_SSH_LIBS=`$PKG_CONFIG --libs "libssh >= 0.8.0" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + SSH_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libssh >= 0.8.0" 2>&1` + else + SSH_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libssh >= 0.8.0" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$SSH_PKG_ERRORS" >&5 + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libssh not found, ssh plugin will be disabled" >&5 +$as_echo "$as_me: WARNING: libssh not found, ssh plugin will be disabled" >&2;} +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libssh not found, ssh plugin will be disabled" >&5 +$as_echo "$as_me: WARNING: libssh not found, ssh plugin will be disabled" >&2;} +else + SSH_CFLAGS=$pkg_cv_SSH_CFLAGS + SSH_LIBS=$pkg_cv_SSH_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + +fi + +fi + if test "x$SSH_LIBS" != "x"; then + HAVE_SSH_TRUE= + HAVE_SSH_FALSE='#' +else + HAVE_SSH_TRUE='#' + HAVE_SSH_FALSE= +fi + + +ISOPROG="no" + +# Check whether --with-iso was given. +if test "${with_iso+set}" = set; then : + withval=$with_iso; +else + with_iso=check +fi + +if test "$with_iso" != "no"; then : + + # Extract the first word of "genisoimage", so it can be a program name with args. +set dummy genisoimage; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_GENISOIMAGE+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$GENISOIMAGE"; then + ac_cv_prog_GENISOIMAGE="$GENISOIMAGE" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_GENISOIMAGE="genisoimage" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + test -z "$ac_cv_prog_GENISOIMAGE" && ac_cv_prog_GENISOIMAGE="no" +fi +fi +GENISOIMAGE=$ac_cv_prog_GENISOIMAGE +if test -n "$GENISOIMAGE"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $GENISOIMAGE" >&5 +$as_echo "$GENISOIMAGE" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + # Extract the first word of "mkisofs", so it can be a program name with args. +set dummy mkisofs; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_MKISOFS+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$MKISOFS"; then + ac_cv_prog_MKISOFS="$MKISOFS" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_MKISOFS="mkisofs" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + test -z "$ac_cv_prog_MKISOFS" && ac_cv_prog_MKISOFS="no" +fi +fi +MKISOFS=$ac_cv_prog_MKISOFS +if test -n "$MKISOFS"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MKISOFS" >&5 +$as_echo "$MKISOFS" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + if test "x$GENISOIMAGE" != "xno"; then : + + ISOPROG="$GENISOIMAGE" + +else + + if test "x$MKISOFS" != "xno"; then : + + ISOPROG="$MKISOFS" + +fi + +fi + if test "x$ISOPROG" != "xno"; then : + + +cat >>confdefs.h <<_ACEOF +#define ISOPROG "$ISOPROG" +_ACEOF + + +fi + +fi + + if test "x$ISOPROG" != "xno"; then + HAVE_ISO_TRUE= + HAVE_ISO_FALSE='#' +else + HAVE_ISO_TRUE='#' + HAVE_ISO_FALSE= +fi + + + +# Check whether --with-libvirt was given. +if test "${with_libvirt+set}" = set; then : + withval=$with_libvirt; +else + with_libvirt=check +fi + +if test "$with_libvirt" != "no"; then : + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for LIBVIRT" >&5 +$as_echo_n "checking for LIBVIRT... " >&6; } + +if test -n "$LIBVIRT_CFLAGS"; then + pkg_cv_LIBVIRT_CFLAGS="$LIBVIRT_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libvirt\""; } >&5 + ($PKG_CONFIG --exists --print-errors "libvirt") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_LIBVIRT_CFLAGS=`$PKG_CONFIG --cflags "libvirt" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$LIBVIRT_LIBS"; then + pkg_cv_LIBVIRT_LIBS="$LIBVIRT_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libvirt\""; } >&5 + ($PKG_CONFIG --exists --print-errors "libvirt") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_LIBVIRT_LIBS=`$PKG_CONFIG --libs "libvirt" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + LIBVIRT_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libvirt" 2>&1` + else + LIBVIRT_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libvirt" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$LIBVIRT_PKG_ERRORS" >&5 + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libvirt not found, libvirt plugin will be disabled" >&5 +$as_echo "$as_me: WARNING: libvirt not found, libvirt plugin will be disabled" >&2;} +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libvirt not found, libvirt plugin will be disabled" >&5 +$as_echo "$as_me: WARNING: libvirt not found, libvirt plugin will be disabled" >&2;} +else + LIBVIRT_CFLAGS=$pkg_cv_LIBVIRT_CFLAGS + LIBVIRT_LIBS=$pkg_cv_LIBVIRT_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + +$as_echo "#define HAVE_LIBVIRT 1" >>confdefs.h + + +fi + +fi + if test "x$LIBVIRT_LIBS" != "x"; then + HAVE_LIBVIRT_TRUE= + HAVE_LIBVIRT_FALSE='#' +else + HAVE_LIBVIRT_TRUE='#' + HAVE_LIBVIRT_FALSE= +fi + + + +# Check whether --with-zlib was given. +if test "${with_zlib+set}" = set; then : + withval=$with_zlib; +else + with_zlib=check +fi + +if test "$with_zlib" != "no"; then : + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ZLIB" >&5 +$as_echo_n "checking for ZLIB... " >&6; } + +if test -n "$ZLIB_CFLAGS"; then + pkg_cv_ZLIB_CFLAGS="$ZLIB_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"zlib >= 1.2.3.5\""; } >&5 + ($PKG_CONFIG --exists --print-errors "zlib >= 1.2.3.5") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_ZLIB_CFLAGS=`$PKG_CONFIG --cflags "zlib >= 1.2.3.5" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$ZLIB_LIBS"; then + pkg_cv_ZLIB_LIBS="$ZLIB_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"zlib >= 1.2.3.5\""; } >&5 + ($PKG_CONFIG --exists --print-errors "zlib >= 1.2.3.5") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_ZLIB_LIBS=`$PKG_CONFIG --libs "zlib >= 1.2.3.5" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + ZLIB_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "zlib >= 1.2.3.5" 2>&1` + else + ZLIB_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "zlib >= 1.2.3.5" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$ZLIB_PKG_ERRORS" >&5 + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: zlib >= 1.2.3.5 not found, gzip plugin will be disabled" >&5 +$as_echo "$as_me: WARNING: zlib >= 1.2.3.5 not found, gzip plugin will be disabled" >&2;} +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: zlib >= 1.2.3.5 not found, gzip plugin will be disabled" >&5 +$as_echo "$as_me: WARNING: zlib >= 1.2.3.5 not found, gzip plugin will be disabled" >&2;} +else + ZLIB_CFLAGS=$pkg_cv_ZLIB_CFLAGS + ZLIB_LIBS=$pkg_cv_ZLIB_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + +$as_echo "#define HAVE_ZLIB 1" >>confdefs.h + + +fi + +fi + if test "x$ZLIB_LIBS" != "x"; then + HAVE_ZLIB_TRUE= + HAVE_ZLIB_FALSE='#' +else + HAVE_ZLIB_TRUE='#' + HAVE_ZLIB_FALSE= +fi + + + +# Check whether --with-liblzma was given. +if test "${with_liblzma+set}" = set; then : + withval=$with_liblzma; +else + with_liblzma=check +fi + +if test "$with_liblzma" != "no"; then : + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for LIBLZMA" >&5 +$as_echo_n "checking for LIBLZMA... " >&6; } + +if test -n "$LIBLZMA_CFLAGS"; then + pkg_cv_LIBLZMA_CFLAGS="$LIBLZMA_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"liblzma\""; } >&5 + ($PKG_CONFIG --exists --print-errors "liblzma") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_LIBLZMA_CFLAGS=`$PKG_CONFIG --cflags "liblzma" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$LIBLZMA_LIBS"; then + pkg_cv_LIBLZMA_LIBS="$LIBLZMA_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"liblzma\""; } >&5 + ($PKG_CONFIG --exists --print-errors "liblzma") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_LIBLZMA_LIBS=`$PKG_CONFIG --libs "liblzma" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + LIBLZMA_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "liblzma" 2>&1` + else + LIBLZMA_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "liblzma" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$LIBLZMA_PKG_ERRORS" >&5 + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: liblzma not found, xz filter will be disabled" >&5 +$as_echo "$as_me: WARNING: liblzma not found, xz filter will be disabled" >&2;} +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: liblzma not found, xz filter will be disabled" >&5 +$as_echo "$as_me: WARNING: liblzma not found, xz filter will be disabled" >&2;} +else + LIBLZMA_CFLAGS=$pkg_cv_LIBLZMA_CFLAGS + LIBLZMA_LIBS=$pkg_cv_LIBLZMA_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + +$as_echo "#define HAVE_LIBLZMA 1" >>confdefs.h + + +fi + +fi + if test "x$LIBLZMA_LIBS" != "x"; then + HAVE_LIBLZMA_TRUE= + HAVE_LIBLZMA_FALSE='#' +else + HAVE_LIBLZMA_TRUE='#' + HAVE_LIBLZMA_FALSE= +fi + + + +# Check whether --with-libguestfs was given. +if test "${with_libguestfs+set}" = set; then : + withval=$with_libguestfs; +else + with_libguestfs=check +fi + +if test "$with_libguestfs" != "no"; then : + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for LIBGUESTFS" >&5 +$as_echo_n "checking for LIBGUESTFS... " >&6; } + +if test -n "$LIBGUESTFS_CFLAGS"; then + pkg_cv_LIBGUESTFS_CFLAGS="$LIBGUESTFS_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libguestfs\""; } >&5 + ($PKG_CONFIG --exists --print-errors "libguestfs") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_LIBGUESTFS_CFLAGS=`$PKG_CONFIG --cflags "libguestfs" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$LIBGUESTFS_LIBS"; then + pkg_cv_LIBGUESTFS_LIBS="$LIBGUESTFS_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libguestfs\""; } >&5 + ($PKG_CONFIG --exists --print-errors "libguestfs") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_LIBGUESTFS_LIBS=`$PKG_CONFIG --libs "libguestfs" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + LIBGUESTFS_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libguestfs" 2>&1` + else + LIBGUESTFS_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libguestfs" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$LIBGUESTFS_PKG_ERRORS" >&5 + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libguestfs not found, guestfs plugin and tests will be disabled" >&5 +$as_echo "$as_me: WARNING: libguestfs not found, guestfs plugin and tests will be disabled" >&2;} +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libguestfs not found, guestfs plugin and tests will be disabled" >&5 +$as_echo "$as_me: WARNING: libguestfs not found, guestfs plugin and tests will be disabled" >&2;} +else + LIBGUESTFS_CFLAGS=$pkg_cv_LIBGUESTFS_CFLAGS + LIBGUESTFS_LIBS=$pkg_cv_LIBGUESTFS_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + # Although the library was found, we want to make sure it supports nbd + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#include + +int +main () +{ + +#ifndef GUESTFS_ADD_DRIVE_OPTS_PROTOCOL +#error unsupported +#endif + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + + + + +$as_echo "#define HAVE_LIBGUESTFS 1" >>confdefs.h + + +else + + LIBGUESTFS_LIBS= + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libguestfs too old, guestfs plugin and tests will be disabled" >&5 +$as_echo "$as_me: WARNING: libguestfs too old, guestfs plugin and tests will be disabled" >&2;} +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + +fi + +fi + if test "x$LIBGUESTFS_LIBS" != "x"; then + HAVE_LIBGUESTFS_TRUE= + HAVE_LIBGUESTFS_FALSE='#' +else + HAVE_LIBGUESTFS_TRUE='#' + HAVE_LIBGUESTFS_FALSE= +fi + + +# Extract the first word of "guestfish", so it can be a program name with args. +set dummy guestfish; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_GUESTFISH+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$GUESTFISH"; then + ac_cv_prog_GUESTFISH="$GUESTFISH" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_GUESTFISH="guestfish" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + test -z "$ac_cv_prog_GUESTFISH" && ac_cv_prog_GUESTFISH="no" +fi +fi +GUESTFISH=$ac_cv_prog_GUESTFISH +if test -n "$GUESTFISH"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $GUESTFISH" >&5 +$as_echo "$GUESTFISH" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + if test "x$GUESTFISH" != "xno"; then + HAVE_GUESTFISH_TRUE= + HAVE_GUESTFISH_FALSE='#' +else + HAVE_GUESTFISH_TRUE='#' + HAVE_GUESTFISH_FALSE= +fi + + + +# Check whether --with-ext2 was given. +if test "${with_ext2+set}" = set; then : + withval=$with_ext2; +else + with_ext2=check +fi + +if test "$with_ext2" != "no"; then : + + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for EXT2FS" >&5 +$as_echo_n "checking for EXT2FS... " >&6; } + +if test -n "$EXT2FS_CFLAGS"; then + pkg_cv_EXT2FS_CFLAGS="$EXT2FS_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"ext2fs\""; } >&5 + ($PKG_CONFIG --exists --print-errors "ext2fs") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_EXT2FS_CFLAGS=`$PKG_CONFIG --cflags "ext2fs" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$EXT2FS_LIBS"; then + pkg_cv_EXT2FS_LIBS="$EXT2FS_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"ext2fs\""; } >&5 + ($PKG_CONFIG --exists --print-errors "ext2fs") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_EXT2FS_LIBS=`$PKG_CONFIG --libs "ext2fs" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + EXT2FS_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "ext2fs" 2>&1` + else + EXT2FS_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "ext2fs" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$EXT2FS_PKG_ERRORS" >&5 + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: ext2fs not found, ext2 plugin will be disabled" >&5 +$as_echo "$as_me: WARNING: ext2fs not found, ext2 plugin will be disabled" >&2;} +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: ext2fs not found, ext2 plugin will be disabled" >&5 +$as_echo "$as_me: WARNING: ext2fs not found, ext2 plugin will be disabled" >&2;} +else + EXT2FS_CFLAGS=$pkg_cv_EXT2FS_CFLAGS + EXT2FS_LIBS=$pkg_cv_EXT2FS_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + +$as_echo "#define HAVE_EXT2FS 1" >>confdefs.h + + +fi + +pkg_failed=no +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for COM_ERR" >&5 +$as_echo_n "checking for COM_ERR... " >&6; } + +if test -n "$COM_ERR_CFLAGS"; then + pkg_cv_COM_ERR_CFLAGS="$COM_ERR_CFLAGS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"com_err\""; } >&5 + ($PKG_CONFIG --exists --print-errors "com_err") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_COM_ERR_CFLAGS=`$PKG_CONFIG --cflags "com_err" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi +if test -n "$COM_ERR_LIBS"; then + pkg_cv_COM_ERR_LIBS="$COM_ERR_LIBS" + elif test -n "$PKG_CONFIG"; then + if test -n "$PKG_CONFIG" && \ + { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"com_err\""; } >&5 + ($PKG_CONFIG --exists --print-errors "com_err") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then + pkg_cv_COM_ERR_LIBS=`$PKG_CONFIG --libs "com_err" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes +else + pkg_failed=yes +fi + else + pkg_failed=untried +fi + + + +if test $pkg_failed = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi + if test $_pkg_short_errors_supported = yes; then + COM_ERR_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "com_err" 2>&1` + else + COM_ERR_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "com_err" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$COM_ERR_PKG_ERRORS" >&5 + + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: com_err not found, ext2 plugin will be disabled" >&5 +$as_echo "$as_me: WARNING: com_err not found, ext2 plugin will be disabled" >&2;} +elif test $pkg_failed = untried; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: com_err not found, ext2 plugin will be disabled" >&5 +$as_echo "$as_me: WARNING: com_err not found, ext2 plugin will be disabled" >&2;} +else + COM_ERR_CFLAGS=$pkg_cv_COM_ERR_CFLAGS + COM_ERR_LIBS=$pkg_cv_COM_ERR_LIBS + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + + + + +$as_echo "#define HAVE_COM_ERR 1" >>confdefs.h + + +fi + +fi + if test "x$EXT2FS_LIBS" != "x" && test "x$COM_ERR_LIBS" != "x"; then + HAVE_EXT2_TRUE= + HAVE_EXT2_FALSE='#' +else + HAVE_EXT2_TRUE='#' + HAVE_EXT2_FALSE= +fi + + +# Check whether --enable-vddk was given. +if test "${enable_vddk+set}" = set; then : + enableval=$enable_vddk; +else + enable_vddk=yes +fi + + if test "x$enable_vddk" = "xyes"; then + HAVE_VDDK_TRUE= + HAVE_VDDK_FALSE='#' +else + HAVE_VDDK_TRUE='#' + HAVE_VDDK_FALSE= +fi + + +lang_plugins="\ + lua \ + ocaml \ + perl \ + python \ + ruby \ + rust \ + sh \ + tcl \ + " +non_lang_plugins="\ + curl \ + data \ + example1 \ + example2 \ + example3 \ + example4 \ + ext2 \ + file \ + floppy \ + full \ + guestfs \ + gzip \ + iso \ + libvirt \ + linuxdisk \ + memory \ + nbd \ + null \ + partitioning \ + pattern \ + random \ + split \ + ssh \ + streaming \ + tar \ + vddk \ + zero \ + " +plugins="$(echo $(printf %s\\n $lang_plugins $non_lang_plugins | sort -u))" +filters="\ + blocksize \ + cache \ + cow \ + delay \ + error \ + fua \ + log \ + noextents \ + nozero \ + offset \ + partition \ + rate \ + readahead \ + truncate \ + xz \ + " + + + + + +ac_config_headers="$ac_config_headers config.h" + +ac_config_files="$ac_config_files podwrapper.pl" + +ac_config_files="$ac_config_files Makefile bash/Makefile common/bitmap/Makefile common/gpt/Makefile common/include/Makefile common/protocol/Makefile common/regions/Makefile common/sparse/Makefile common/utils/Makefile docs/Makefile include/Makefile plugins/Makefile plugins/curl/Makefile plugins/data/Makefile plugins/example1/Makefile plugins/example2/Makefile plugins/example3/Makefile plugins/example4/Makefile plugins/ext2/Makefile plugins/file/Makefile plugins/floppy/Makefile plugins/full/Makefile plugins/guestfs/Makefile plugins/gzip/Makefile plugins/iso/Makefile plugins/libvirt/Makefile plugins/linuxdisk/Makefile plugins/lua/Makefile plugins/memory/Makefile plugins/nbd/Makefile plugins/null/Makefile plugins/ocaml/Makefile plugins/partitioning/Makefile plugins/pattern/Makefile plugins/perl/Makefile plugins/python/Makefile plugins/random/Makefile plugins/ruby/Makefile plugins/rust/Cargo.toml plugins/rust/Makefile plugins/sh/Makefile plugins/ssh/Makefile plugins/split/Makefile plugins/streaming/Makefile plugins/tar/Makefile plugins/tcl/Makefile plugins/vddk/Makefile plugins/zero/Makefile filters/Makefile filters/blocksize/Makefile filters/cache/Makefile filters/cow/Makefile filters/delay/Makefile filters/error/Makefile filters/fua/Makefile filters/log/Makefile filters/noextents/Makefile filters/nozero/Makefile filters/offset/Makefile filters/partition/Makefile filters/rate/Makefile filters/readahead/Makefile filters/truncate/Makefile filters/xz/Makefile fuzzing/Makefile server/Makefile server/nbdkit.pc tests/functions.sh tests/Makefile valgrind/Makefile" + + +cat >confcache <<\_ACEOF +# This file is a shell script that caches the results of configure +# tests run on this system so they can be shared between configure +# scripts and configure runs, see configure's option --config-cache. +# It is not useful on other systems. If it contains results you don't +# want to keep, you may remove or edit it. +# +# config.status only pays attention to the cache file if you give it +# the --recheck option to rerun configure. +# +# `ac_cv_env_foo' variables (set or unset) will be overridden when +# loading this file, other *unset* `ac_cv_foo' will be assigned the +# following values. + +_ACEOF + +# The following way of writing the cache mishandles newlines in values, +# but we know of no workaround that is simple, portable, and efficient. +# So, we kill variables containing newlines. +# Ultrix sh set writes to stderr and can't be redirected directly, +# and sets the high bit in the cache file unless we assign to the vars. +( + for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do + eval ac_val=\$$ac_var + case $ac_val in #( + *${as_nl}*) + case $ac_var in #( + *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5 +$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;; + esac + case $ac_var in #( + _ | IFS | as_nl) ;; #( + BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #( + *) { eval $ac_var=; unset $ac_var;} ;; + esac ;; + esac + done + + (set) 2>&1 | + case $as_nl`(ac_space=' '; set) 2>&1` in #( + *${as_nl}ac_space=\ *) + # `set' does not quote correctly, so add quotes: double-quote + # substitution turns \\\\ into \\, and sed turns \\ into \. + sed -n \ + "s/'/'\\\\''/g; + s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p" + ;; #( + *) + # `set' quotes correctly as required by POSIX, so do not add quotes. + sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p" + ;; + esac | + sort +) | + sed ' + /^ac_cv_env_/b end + t clear + :clear + s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/ + t end + s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/ + :end' >>confcache +if diff "$cache_file" confcache >/dev/null 2>&1; then :; else + if test -w "$cache_file"; then + if test "x$cache_file" != "x/dev/null"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5 +$as_echo "$as_me: updating cache $cache_file" >&6;} + if test ! -f "$cache_file" || test -h "$cache_file"; then + cat confcache >"$cache_file" + else + case $cache_file in #( + */* | ?:*) + mv -f confcache "$cache_file"$$ && + mv -f "$cache_file"$$ "$cache_file" ;; #( + *) + mv -f confcache "$cache_file" ;; + esac + fi + fi + else + { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5 +$as_echo "$as_me: not updating unwritable cache $cache_file" >&6;} + fi +fi +rm -f confcache + +test "x$prefix" = xNONE && prefix=$ac_default_prefix +# Let make expand exec_prefix. +test "x$exec_prefix" = xNONE && exec_prefix='${prefix}' + +DEFS=-DHAVE_CONFIG_H + +ac_libobjs= +ac_ltlibobjs= +U= +for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue + # 1. Remove the extension, and $U if already installed. + ac_script='s/\$U\././;s/\.o$//;s/\.obj$//' + ac_i=`$as_echo "$ac_i" | sed "$ac_script"` + # 2. Prepend LIBOBJDIR. When used with automake>=1.10 LIBOBJDIR + # will be set to the directory where LIBOBJS objects are built. + as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext" + as_fn_append ac_ltlibobjs " \${LIBOBJDIR}$ac_i"'$U.lo' +done +LIBOBJS=$ac_libobjs + +LTLIBOBJS=$ac_ltlibobjs + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking that generated files are newer than configure" >&5 +$as_echo_n "checking that generated files are newer than configure... " >&6; } + if test -n "$am_sleep_pid"; then + # Hide warnings about reused PIDs. + wait $am_sleep_pid 2>/dev/null + fi + { $as_echo "$as_me:${as_lineno-$LINENO}: result: done" >&5 +$as_echo "done" >&6; } +if test -z "${AMDEP_TRUE}" && test -z "${AMDEP_FALSE}"; then + as_fn_error $? "conditional \"AMDEP\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${am__fastdepCC_TRUE}" && test -z "${am__fastdepCC_FALSE}"; then + as_fn_error $? "conditional \"am__fastdepCC\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi + if test -n "$EXEEXT"; then + am__EXEEXT_TRUE= + am__EXEEXT_FALSE='#' +else + am__EXEEXT_TRUE='#' + am__EXEEXT_FALSE= +fi + +if test -z "${am__fastdepCXX_TRUE}" && test -z "${am__fastdepCXX_FALSE}"; then + as_fn_error $? "conditional \"am__fastdepCXX\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_CXX_TRUE}" && test -z "${HAVE_CXX_FALSE}"; then + as_fn_error $? "conditional \"HAVE_CXX\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${CAN_TEST_ANSI_C_TRUE}" && test -z "${CAN_TEST_ANSI_C_FALSE}"; then + as_fn_error $? "conditional \"CAN_TEST_ANSI_C\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_ICONV_TRUE}" && test -z "${HAVE_ICONV_FALSE}"; then + as_fn_error $? "conditional \"HAVE_ICONV\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${USE_LINKER_SCRIPT_FOR_SERVER_TRUE}" && test -z "${USE_LINKER_SCRIPT_FOR_SERVER_FALSE}"; then + as_fn_error $? "conditional \"USE_LINKER_SCRIPT_FOR_SERVER\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_BASH_COMPLETION_TRUE}" && test -z "${HAVE_BASH_COMPLETION_FALSE}"; then + as_fn_error $? "conditional \"HAVE_BASH_COMPLETION\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_POD_TRUE}" && test -z "${HAVE_POD_FALSE}"; then + as_fn_error $? "conditional \"HAVE_POD\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_PLUGINS_TRUE}" && test -z "${HAVE_PLUGINS_FALSE}"; then + as_fn_error $? "conditional \"HAVE_PLUGINS\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_PERL_TRUE}" && test -z "${HAVE_PERL_FALSE}"; then + as_fn_error $? "conditional \"HAVE_PERL\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_PYTHON_TRUE}" && test -z "${HAVE_PYTHON_FALSE}"; then + as_fn_error $? "conditional \"HAVE_PYTHON\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_OCAML_TRUE}" && test -z "${HAVE_OCAML_FALSE}"; then + as_fn_error $? "conditional \"HAVE_OCAML\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_RUST_TRUE}" && test -z "${HAVE_RUST_FALSE}"; then + as_fn_error $? "conditional \"HAVE_RUST\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_RUBY_TRUE}" && test -z "${HAVE_RUBY_FALSE}"; then + as_fn_error $? "conditional \"HAVE_RUBY\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_TCL_TRUE}" && test -z "${HAVE_TCL_FALSE}"; then + as_fn_error $? "conditional \"HAVE_TCL\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_LUA_TRUE}" && test -z "${HAVE_LUA_FALSE}"; then + as_fn_error $? "conditional \"HAVE_LUA\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_CURL_TRUE}" && test -z "${HAVE_CURL_FALSE}"; then + as_fn_error $? "conditional \"HAVE_CURL\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_SSH_TRUE}" && test -z "${HAVE_SSH_FALSE}"; then + as_fn_error $? "conditional \"HAVE_SSH\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_ISO_TRUE}" && test -z "${HAVE_ISO_FALSE}"; then + as_fn_error $? "conditional \"HAVE_ISO\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_LIBVIRT_TRUE}" && test -z "${HAVE_LIBVIRT_FALSE}"; then + as_fn_error $? "conditional \"HAVE_LIBVIRT\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_ZLIB_TRUE}" && test -z "${HAVE_ZLIB_FALSE}"; then + as_fn_error $? "conditional \"HAVE_ZLIB\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_LIBLZMA_TRUE}" && test -z "${HAVE_LIBLZMA_FALSE}"; then + as_fn_error $? "conditional \"HAVE_LIBLZMA\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_LIBGUESTFS_TRUE}" && test -z "${HAVE_LIBGUESTFS_FALSE}"; then + as_fn_error $? "conditional \"HAVE_LIBGUESTFS\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_GUESTFISH_TRUE}" && test -z "${HAVE_GUESTFISH_FALSE}"; then + as_fn_error $? "conditional \"HAVE_GUESTFISH\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_EXT2_TRUE}" && test -z "${HAVE_EXT2_FALSE}"; then + as_fn_error $? "conditional \"HAVE_EXT2\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${HAVE_VDDK_TRUE}" && test -z "${HAVE_VDDK_FALSE}"; then + as_fn_error $? "conditional \"HAVE_VDDK\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi + +: "${CONFIG_STATUS=./config.status}" +ac_write_fail=0 +ac_clean_files_save=$ac_clean_files +ac_clean_files="$ac_clean_files $CONFIG_STATUS" +{ $as_echo "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5 +$as_echo "$as_me: creating $CONFIG_STATUS" >&6;} +as_write_fail=0 +cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1 +#! $SHELL +# Generated by $as_me. +# Run this file to recreate the current configuration. +# Compiler output produced by configure, useful for debugging +# configure, is in config.log if it exists. + +debug=false +ac_cs_recheck=false +ac_cs_silent=false + +SHELL=\${CONFIG_SHELL-$SHELL} +export SHELL +_ASEOF +cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1 +## -------------------- ## +## M4sh Initialization. ## +## -------------------- ## + +# Be more Bourne compatible +DUALCASE=1; export DUALCASE # for MKS sh +if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then : + emulate sh + NULLCMD=: + # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which + # is contrary to our usage. Disable this feature. + alias -g '${1+"$@"}'='"$@"' + setopt NO_GLOB_SUBST +else + case `(set -o) 2>/dev/null` in #( + *posix*) : + set -o posix ;; #( + *) : + ;; +esac +fi + + +as_nl=' +' +export as_nl +# Printing a long string crashes Solaris 7 /usr/bin/printf. +as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' +as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo +as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo +# Prefer a ksh shell builtin over an external printf program on Solaris, +# but without wasting forks for bash or zsh. +if test -z "$BASH_VERSION$ZSH_VERSION" \ + && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then + as_echo='print -r --' + as_echo_n='print -rn --' +elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then + as_echo='printf %s\n' + as_echo_n='printf %s' +else + if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then + as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"' + as_echo_n='/usr/ucb/echo -n' + else + as_echo_body='eval expr "X$1" : "X\\(.*\\)"' + as_echo_n_body='eval + arg=$1; + case $arg in #( + *"$as_nl"*) + expr "X$arg" : "X\\(.*\\)$as_nl"; + arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;; + esac; + expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl" + ' + export as_echo_n_body + as_echo_n='sh -c $as_echo_n_body as_echo' + fi + export as_echo_body + as_echo='sh -c $as_echo_body as_echo' +fi + +# The user is always right. +if test "${PATH_SEPARATOR+set}" != set; then + PATH_SEPARATOR=: + (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && { + (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 || + PATH_SEPARATOR=';' + } +fi + + +# IFS +# We need space, tab and new line, in precisely that order. Quoting is +# there to prevent editors from complaining about space-tab. +# (If _AS_PATH_WALK were called with IFS unset, it would disable word +# splitting by setting IFS to empty value.) +IFS=" "" $as_nl" + +# Find who we are. Look in the path if we contain no directory separator. +as_myself= +case $0 in #(( + *[\\/]* ) as_myself=$0 ;; + *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break + done +IFS=$as_save_IFS + + ;; +esac +# We did not find ourselves, most probably we were run as `sh COMMAND' +# in which case we are not to be found in the path. +if test "x$as_myself" = x; then + as_myself=$0 +fi +if test ! -f "$as_myself"; then + $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2 + exit 1 +fi + +# Unset variables that we do not need and which cause bugs (e.g. in +# pre-3.0 UWIN ksh). But do not cause bugs in bash 2.01; the "|| exit 1" +# suppresses any "Segmentation fault" message there. '((' could +# trigger a bug in pdksh 5.2.14. +for as_var in BASH_ENV ENV MAIL MAILPATH +do eval test x\${$as_var+set} = xset \ + && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || : +done +PS1='$ ' +PS2='> ' +PS4='+ ' + +# NLS nuisances. +LC_ALL=C +export LC_ALL +LANGUAGE=C +export LANGUAGE + +# CDPATH. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + + +# as_fn_error STATUS ERROR [LINENO LOG_FD] +# ---------------------------------------- +# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are +# provided, also output the error to LOG_FD, referencing LINENO. Then exit the +# script with STATUS, using 1 if that was 0. +as_fn_error () +{ + as_status=$1; test $as_status -eq 0 && as_status=1 + if test "$4"; then + as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4 + fi + $as_echo "$as_me: error: $2" >&2 + as_fn_exit $as_status +} # as_fn_error + + +# as_fn_set_status STATUS +# ----------------------- +# Set $? to STATUS, without forking. +as_fn_set_status () +{ + return $1 +} # as_fn_set_status + +# as_fn_exit STATUS +# ----------------- +# Exit the shell with STATUS, even in a "trap 0" or "set -e" context. +as_fn_exit () +{ + set +e + as_fn_set_status $1 + exit $1 +} # as_fn_exit + +# as_fn_unset VAR +# --------------- +# Portably unset VAR. +as_fn_unset () +{ + { eval $1=; unset $1;} +} +as_unset=as_fn_unset +# as_fn_append VAR VALUE +# ---------------------- +# Append the text in VALUE to the end of the definition contained in VAR. Take +# advantage of any shell optimizations that allow amortized linear growth over +# repeated appends, instead of the typical quadratic growth present in naive +# implementations. +if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then : + eval 'as_fn_append () + { + eval $1+=\$2 + }' +else + as_fn_append () + { + eval $1=\$$1\$2 + } +fi # as_fn_append + +# as_fn_arith ARG... +# ------------------ +# Perform arithmetic evaluation on the ARGs, and store the result in the +# global $as_val. Take advantage of shells that can avoid forks. The arguments +# must be portable across $(()) and expr. +if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then : + eval 'as_fn_arith () + { + as_val=$(( $* )) + }' +else + as_fn_arith () + { + as_val=`expr "$@" || test $? -eq 1` + } +fi # as_fn_arith + + +if expr a : '\(a\)' >/dev/null 2>&1 && + test "X`expr 00001 : '.*\(...\)'`" = X001; then + as_expr=expr +else + as_expr=false +fi + +if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then + as_basename=basename +else + as_basename=false +fi + +if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then + as_dirname=dirname +else + as_dirname=false +fi + +as_me=`$as_basename -- "$0" || +$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \ + X"$0" : 'X\(//\)$' \| \ + X"$0" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X/"$0" | + sed '/^.*\/\([^/][^/]*\)\/*$/{ + s//\1/ + q + } + /^X\/\(\/\/\)$/{ + s//\1/ + q + } + /^X\/\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + +# Avoid depending upon Character Ranges. +as_cr_letters='abcdefghijklmnopqrstuvwxyz' +as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ' +as_cr_Letters=$as_cr_letters$as_cr_LETTERS +as_cr_digits='0123456789' +as_cr_alnum=$as_cr_Letters$as_cr_digits + +ECHO_C= ECHO_N= ECHO_T= +case `echo -n x` in #((((( +-n*) + case `echo 'xy\c'` in + *c*) ECHO_T=' ';; # ECHO_T is single tab character. + xy) ECHO_C='\c';; + *) echo `echo ksh88 bug on AIX 6.1` > /dev/null + ECHO_T=' ';; + esac;; +*) + ECHO_N='-n';; +esac + +rm -f conf$$ conf$$.exe conf$$.file +if test -d conf$$.dir; then + rm -f conf$$.dir/conf$$.file +else + rm -f conf$$.dir + mkdir conf$$.dir 2>/dev/null +fi +if (echo >conf$$.file) 2>/dev/null; then + if ln -s conf$$.file conf$$ 2>/dev/null; then + as_ln_s='ln -s' + # ... but there are two gotchas: + # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail. + # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable. + # In both cases, we have to default to `cp -pR'. + ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe || + as_ln_s='cp -pR' + elif ln conf$$.file conf$$ 2>/dev/null; then + as_ln_s=ln + else + as_ln_s='cp -pR' + fi +else + as_ln_s='cp -pR' +fi +rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file +rmdir conf$$.dir 2>/dev/null + + +# as_fn_mkdir_p +# ------------- +# Create "$as_dir" as a directory, including parents if necessary. +as_fn_mkdir_p () +{ + + case $as_dir in #( + -*) as_dir=./$as_dir;; + esac + test -d "$as_dir" || eval $as_mkdir_p || { + as_dirs= + while :; do + case $as_dir in #( + *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'( + *) as_qdir=$as_dir;; + esac + as_dirs="'$as_qdir' $as_dirs" + as_dir=`$as_dirname -- "$as_dir" || +$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$as_dir" : 'X\(//\)[^/]' \| \ + X"$as_dir" : 'X\(//\)$' \| \ + X"$as_dir" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X"$as_dir" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ + s//\1/ + q + } + /^X\(\/\/\)[^/].*/{ + s//\1/ + q + } + /^X\(\/\/\)$/{ + s//\1/ + q + } + /^X\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + test -d "$as_dir" && break + done + test -z "$as_dirs" || eval "mkdir $as_dirs" + } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir" + + +} # as_fn_mkdir_p +if mkdir -p . 2>/dev/null; then + as_mkdir_p='mkdir -p "$as_dir"' +else + test -d ./-p && rmdir ./-p + as_mkdir_p=false +fi + + +# as_fn_executable_p FILE +# ----------------------- +# Test if FILE is an executable regular file. +as_fn_executable_p () +{ + test -f "$1" && test -x "$1" +} # as_fn_executable_p +as_test_x='test -x' +as_executable_p=as_fn_executable_p + +# Sed expression to map a string onto a valid CPP name. +as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'" + +# Sed expression to map a string onto a valid variable name. +as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'" + + +exec 6>&1 +## ----------------------------------- ## +## Main body of $CONFIG_STATUS script. ## +## ----------------------------------- ## +_ASEOF +test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1 + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +# Save the log message, to keep $0 and so on meaningful, and to +# report actual input values of CONFIG_FILES etc. instead of their +# values after options handling. +ac_log=" +This file was extended by nbdkit $as_me 1.12.2, which was +generated by GNU Autoconf 2.69. Invocation command line was + + CONFIG_FILES = $CONFIG_FILES + CONFIG_HEADERS = $CONFIG_HEADERS + CONFIG_LINKS = $CONFIG_LINKS + CONFIG_COMMANDS = $CONFIG_COMMANDS + $ $0 $@ + +on `(hostname || uname -n) 2>/dev/null | sed 1q` +" + +_ACEOF + +case $ac_config_files in *" +"*) set x $ac_config_files; shift; ac_config_files=$*;; +esac + +case $ac_config_headers in *" +"*) set x $ac_config_headers; shift; ac_config_headers=$*;; +esac + + +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +# Files that config.status was made for. +config_files="$ac_config_files" +config_headers="$ac_config_headers" +config_commands="$ac_config_commands" + +_ACEOF + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +ac_cs_usage="\ +\`$as_me' instantiates files and other configuration actions +from templates according to the current configuration. Unless the files +and actions are specified as TAGs, all are instantiated by default. + +Usage: $0 [OPTION]... [TAG]... + + -h, --help print this help, then exit + -V, --version print version number and configuration settings, then exit + --config print configuration, then exit + -q, --quiet, --silent + do not print progress messages + -d, --debug don't remove temporary files + --recheck update $as_me by reconfiguring in the same conditions + --file=FILE[:TEMPLATE] + instantiate the configuration file FILE + --header=FILE[:TEMPLATE] + instantiate the configuration header FILE + +Configuration files: +$config_files + +Configuration headers: +$config_headers + +Configuration commands: +$config_commands + +Report bugs to the package provider." + +_ACEOF +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`" +ac_cs_version="\\ +nbdkit config.status 1.12.2 +configured by $0, generated by GNU Autoconf 2.69, + with options \\"\$ac_cs_config\\" + +Copyright (C) 2012 Free Software Foundation, Inc. +This config.status script is free software; the Free Software Foundation +gives unlimited permission to copy, distribute and modify it." + +ac_pwd='$ac_pwd' +srcdir='$srcdir' +INSTALL='$INSTALL' +MKDIR_P='$MKDIR_P' +AWK='$AWK' +test -n "\$AWK" || AWK=awk +_ACEOF + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +# The default lists apply if the user does not specify any file. +ac_need_defaults=: +while test $# != 0 +do + case $1 in + --*=?*) + ac_option=`expr "X$1" : 'X\([^=]*\)='` + ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'` + ac_shift=: + ;; + --*=) + ac_option=`expr "X$1" : 'X\([^=]*\)='` + ac_optarg= + ac_shift=: + ;; + *) + ac_option=$1 + ac_optarg=$2 + ac_shift=shift + ;; + esac + + case $ac_option in + # Handling of the options. + -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r) + ac_cs_recheck=: ;; + --version | --versio | --versi | --vers | --ver | --ve | --v | -V ) + $as_echo "$ac_cs_version"; exit ;; + --config | --confi | --conf | --con | --co | --c ) + $as_echo "$ac_cs_config"; exit ;; + --debug | --debu | --deb | --de | --d | -d ) + debug=: ;; + --file | --fil | --fi | --f ) + $ac_shift + case $ac_optarg in + *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;; + '') as_fn_error $? "missing file argument" ;; + esac + as_fn_append CONFIG_FILES " '$ac_optarg'" + ac_need_defaults=false;; + --header | --heade | --head | --hea ) + $ac_shift + case $ac_optarg in + *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;; + esac + as_fn_append CONFIG_HEADERS " '$ac_optarg'" + ac_need_defaults=false;; + --he | --h) + # Conflict between --help and --header + as_fn_error $? "ambiguous option: \`$1' +Try \`$0 --help' for more information.";; + --help | --hel | -h ) + $as_echo "$ac_cs_usage"; exit ;; + -q | -quiet | --quiet | --quie | --qui | --qu | --q \ + | -silent | --silent | --silen | --sile | --sil | --si | --s) + ac_cs_silent=: ;; + + # This is an error. + -*) as_fn_error $? "unrecognized option: \`$1' +Try \`$0 --help' for more information." ;; + + *) as_fn_append ac_config_targets " $1" + ac_need_defaults=false ;; + + esac + shift +done + +ac_configure_extra_args= + +if $ac_cs_silent; then + exec 6>/dev/null + ac_configure_extra_args="$ac_configure_extra_args --silent" +fi + +_ACEOF +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +if \$ac_cs_recheck; then + set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion + shift + \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6 + CONFIG_SHELL='$SHELL' + export CONFIG_SHELL + exec "\$@" +fi + +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +exec 5>>config.log +{ + echo + sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX +## Running $as_me. ## +_ASBOX + $as_echo "$ac_log" +} >&5 + +_ACEOF +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +# +# INIT-COMMANDS +# +AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}" + + +# The HP-UX ksh and POSIX shell print the target 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"$old_archive_from_new_cmds" | $SED "$delay_single_quote_subst"`' +old_archive_from_expsyms_cmds='`$ECHO "$old_archive_from_expsyms_cmds" | $SED "$delay_single_quote_subst"`' +archive_cmds='`$ECHO "$archive_cmds" | $SED "$delay_single_quote_subst"`' +archive_expsym_cmds='`$ECHO "$archive_expsym_cmds" | $SED "$delay_single_quote_subst"`' +module_cmds='`$ECHO "$module_cmds" | $SED "$delay_single_quote_subst"`' +module_expsym_cmds='`$ECHO "$module_expsym_cmds" | $SED "$delay_single_quote_subst"`' +with_gnu_ld='`$ECHO "$with_gnu_ld" | $SED "$delay_single_quote_subst"`' +allow_undefined_flag='`$ECHO "$allow_undefined_flag" | $SED "$delay_single_quote_subst"`' +no_undefined_flag='`$ECHO "$no_undefined_flag" | $SED "$delay_single_quote_subst"`' +hardcode_libdir_flag_spec='`$ECHO "$hardcode_libdir_flag_spec" | $SED "$delay_single_quote_subst"`' +hardcode_libdir_separator='`$ECHO "$hardcode_libdir_separator" | $SED "$delay_single_quote_subst"`' +hardcode_direct='`$ECHO "$hardcode_direct" | $SED "$delay_single_quote_subst"`' +hardcode_direct_absolute='`$ECHO "$hardcode_direct_absolute" | $SED "$delay_single_quote_subst"`' +hardcode_minus_L='`$ECHO "$hardcode_minus_L" | $SED "$delay_single_quote_subst"`' +hardcode_shlibpath_var='`$ECHO "$hardcode_shlibpath_var" | $SED "$delay_single_quote_subst"`' +hardcode_automatic='`$ECHO "$hardcode_automatic" | $SED "$delay_single_quote_subst"`' +inherit_rpath='`$ECHO "$inherit_rpath" | $SED "$delay_single_quote_subst"`' +link_all_deplibs='`$ECHO "$link_all_deplibs" | $SED "$delay_single_quote_subst"`' +always_export_symbols='`$ECHO "$always_export_symbols" | $SED "$delay_single_quote_subst"`' +export_symbols_cmds='`$ECHO "$export_symbols_cmds" | $SED "$delay_single_quote_subst"`' +exclude_expsyms='`$ECHO "$exclude_expsyms" | $SED "$delay_single_quote_subst"`' +include_expsyms='`$ECHO "$include_expsyms" | $SED "$delay_single_quote_subst"`' +prelink_cmds='`$ECHO "$prelink_cmds" | $SED "$delay_single_quote_subst"`' +postlink_cmds='`$ECHO "$postlink_cmds" | $SED "$delay_single_quote_subst"`' +file_list_spec='`$ECHO "$file_list_spec" | $SED "$delay_single_quote_subst"`' +variables_saved_for_relink='`$ECHO "$variables_saved_for_relink" | $SED "$delay_single_quote_subst"`' +need_lib_prefix='`$ECHO "$need_lib_prefix" | $SED "$delay_single_quote_subst"`' +need_version='`$ECHO "$need_version" | $SED "$delay_single_quote_subst"`' +version_type='`$ECHO "$version_type" | $SED "$delay_single_quote_subst"`' +runpath_var='`$ECHO "$runpath_var" | $SED "$delay_single_quote_subst"`' +shlibpath_var='`$ECHO "$shlibpath_var" | $SED "$delay_single_quote_subst"`' +shlibpath_overrides_runpath='`$ECHO "$shlibpath_overrides_runpath" | $SED "$delay_single_quote_subst"`' +libname_spec='`$ECHO "$libname_spec" | $SED "$delay_single_quote_subst"`' +library_names_spec='`$ECHO "$library_names_spec" | $SED "$delay_single_quote_subst"`' +soname_spec='`$ECHO "$soname_spec" | $SED "$delay_single_quote_subst"`' +install_override_mode='`$ECHO "$install_override_mode" | $SED "$delay_single_quote_subst"`' +postinstall_cmds='`$ECHO "$postinstall_cmds" | $SED "$delay_single_quote_subst"`' +postuninstall_cmds='`$ECHO "$postuninstall_cmds" | $SED "$delay_single_quote_subst"`' +finish_cmds='`$ECHO "$finish_cmds" | $SED "$delay_single_quote_subst"`' +finish_eval='`$ECHO "$finish_eval" | $SED "$delay_single_quote_subst"`' +hardcode_into_libs='`$ECHO "$hardcode_into_libs" | $SED "$delay_single_quote_subst"`' +sys_lib_search_path_spec='`$ECHO "$sys_lib_search_path_spec" | $SED "$delay_single_quote_subst"`' +configure_time_dlsearch_path='`$ECHO "$configure_time_dlsearch_path" | $SED "$delay_single_quote_subst"`' +configure_time_lt_sys_library_path='`$ECHO "$configure_time_lt_sys_library_path" | $SED "$delay_single_quote_subst"`' +hardcode_action='`$ECHO "$hardcode_action" | $SED "$delay_single_quote_subst"`' +enable_dlopen='`$ECHO "$enable_dlopen" | $SED "$delay_single_quote_subst"`' +enable_dlopen_self='`$ECHO "$enable_dlopen_self" | $SED "$delay_single_quote_subst"`' +enable_dlopen_self_static='`$ECHO "$enable_dlopen_self_static" | $SED "$delay_single_quote_subst"`' +old_striplib='`$ECHO "$old_striplib" | $SED "$delay_single_quote_subst"`' +striplib='`$ECHO "$striplib" | $SED "$delay_single_quote_subst"`' +compiler_lib_search_dirs='`$ECHO "$compiler_lib_search_dirs" | $SED "$delay_single_quote_subst"`' +predep_objects='`$ECHO "$predep_objects" | $SED "$delay_single_quote_subst"`' +postdep_objects='`$ECHO "$postdep_objects" | $SED "$delay_single_quote_subst"`' +predeps='`$ECHO "$predeps" | $SED "$delay_single_quote_subst"`' +postdeps='`$ECHO "$postdeps" | $SED "$delay_single_quote_subst"`' +compiler_lib_search_path='`$ECHO "$compiler_lib_search_path" | $SED "$delay_single_quote_subst"`' +LD_CXX='`$ECHO "$LD_CXX" | $SED "$delay_single_quote_subst"`' +reload_flag_CXX='`$ECHO "$reload_flag_CXX" | $SED "$delay_single_quote_subst"`' +reload_cmds_CXX='`$ECHO "$reload_cmds_CXX" | $SED "$delay_single_quote_subst"`' +old_archive_cmds_CXX='`$ECHO "$old_archive_cmds_CXX" | $SED "$delay_single_quote_subst"`' +compiler_CXX='`$ECHO "$compiler_CXX" | $SED "$delay_single_quote_subst"`' +GCC_CXX='`$ECHO "$GCC_CXX" | $SED "$delay_single_quote_subst"`' +lt_prog_compiler_no_builtin_flag_CXX='`$ECHO "$lt_prog_compiler_no_builtin_flag_CXX" | $SED "$delay_single_quote_subst"`' +lt_prog_compiler_pic_CXX='`$ECHO "$lt_prog_compiler_pic_CXX" | $SED "$delay_single_quote_subst"`' +lt_prog_compiler_wl_CXX='`$ECHO "$lt_prog_compiler_wl_CXX" | $SED "$delay_single_quote_subst"`' +lt_prog_compiler_static_CXX='`$ECHO "$lt_prog_compiler_static_CXX" | $SED "$delay_single_quote_subst"`' +lt_cv_prog_compiler_c_o_CXX='`$ECHO "$lt_cv_prog_compiler_c_o_CXX" | $SED "$delay_single_quote_subst"`' +archive_cmds_need_lc_CXX='`$ECHO "$archive_cmds_need_lc_CXX" | $SED "$delay_single_quote_subst"`' +enable_shared_with_static_runtimes_CXX='`$ECHO "$enable_shared_with_static_runtimes_CXX" | $SED "$delay_single_quote_subst"`' +export_dynamic_flag_spec_CXX='`$ECHO "$export_dynamic_flag_spec_CXX" | $SED "$delay_single_quote_subst"`' +whole_archive_flag_spec_CXX='`$ECHO "$whole_archive_flag_spec_CXX" | $SED "$delay_single_quote_subst"`' +compiler_needs_object_CXX='`$ECHO "$compiler_needs_object_CXX" | $SED "$delay_single_quote_subst"`' +old_archive_from_new_cmds_CXX='`$ECHO "$old_archive_from_new_cmds_CXX" | $SED "$delay_single_quote_subst"`' +old_archive_from_expsyms_cmds_CXX='`$ECHO "$old_archive_from_expsyms_cmds_CXX" | $SED "$delay_single_quote_subst"`' +archive_cmds_CXX='`$ECHO "$archive_cmds_CXX" | $SED "$delay_single_quote_subst"`' +archive_expsym_cmds_CXX='`$ECHO "$archive_expsym_cmds_CXX" | $SED "$delay_single_quote_subst"`' +module_cmds_CXX='`$ECHO "$module_cmds_CXX" | $SED "$delay_single_quote_subst"`' +module_expsym_cmds_CXX='`$ECHO "$module_expsym_cmds_CXX" | $SED "$delay_single_quote_subst"`' +with_gnu_ld_CXX='`$ECHO "$with_gnu_ld_CXX" | $SED "$delay_single_quote_subst"`' +allow_undefined_flag_CXX='`$ECHO "$allow_undefined_flag_CXX" | $SED "$delay_single_quote_subst"`' +no_undefined_flag_CXX='`$ECHO "$no_undefined_flag_CXX" | $SED "$delay_single_quote_subst"`' +hardcode_libdir_flag_spec_CXX='`$ECHO "$hardcode_libdir_flag_spec_CXX" | $SED "$delay_single_quote_subst"`' +hardcode_libdir_separator_CXX='`$ECHO "$hardcode_libdir_separator_CXX" | $SED "$delay_single_quote_subst"`' +hardcode_direct_CXX='`$ECHO "$hardcode_direct_CXX" | $SED "$delay_single_quote_subst"`' +hardcode_direct_absolute_CXX='`$ECHO "$hardcode_direct_absolute_CXX" | $SED "$delay_single_quote_subst"`' +hardcode_minus_L_CXX='`$ECHO "$hardcode_minus_L_CXX" | $SED "$delay_single_quote_subst"`' +hardcode_shlibpath_var_CXX='`$ECHO "$hardcode_shlibpath_var_CXX" | $SED "$delay_single_quote_subst"`' +hardcode_automatic_CXX='`$ECHO "$hardcode_automatic_CXX" | $SED "$delay_single_quote_subst"`' +inherit_rpath_CXX='`$ECHO "$inherit_rpath_CXX" | $SED "$delay_single_quote_subst"`' +link_all_deplibs_CXX='`$ECHO "$link_all_deplibs_CXX" | $SED "$delay_single_quote_subst"`' +always_export_symbols_CXX='`$ECHO "$always_export_symbols_CXX" | $SED "$delay_single_quote_subst"`' +export_symbols_cmds_CXX='`$ECHO "$export_symbols_cmds_CXX" | $SED "$delay_single_quote_subst"`' +exclude_expsyms_CXX='`$ECHO "$exclude_expsyms_CXX" | $SED "$delay_single_quote_subst"`' +include_expsyms_CXX='`$ECHO "$include_expsyms_CXX" | $SED "$delay_single_quote_subst"`' +prelink_cmds_CXX='`$ECHO "$prelink_cmds_CXX" | $SED "$delay_single_quote_subst"`' +postlink_cmds_CXX='`$ECHO "$postlink_cmds_CXX" | $SED "$delay_single_quote_subst"`' +file_list_spec_CXX='`$ECHO "$file_list_spec_CXX" | $SED "$delay_single_quote_subst"`' +hardcode_action_CXX='`$ECHO "$hardcode_action_CXX" | $SED "$delay_single_quote_subst"`' +compiler_lib_search_dirs_CXX='`$ECHO "$compiler_lib_search_dirs_CXX" | $SED "$delay_single_quote_subst"`' +predep_objects_CXX='`$ECHO "$predep_objects_CXX" | $SED "$delay_single_quote_subst"`' +postdep_objects_CXX='`$ECHO "$postdep_objects_CXX" | $SED "$delay_single_quote_subst"`' +predeps_CXX='`$ECHO "$predeps_CXX" | $SED "$delay_single_quote_subst"`' +postdeps_CXX='`$ECHO "$postdeps_CXX" | $SED "$delay_single_quote_subst"`' +compiler_lib_search_path_CXX='`$ECHO "$compiler_lib_search_path_CXX" | $SED "$delay_single_quote_subst"`' + +LTCC='$LTCC' +LTCFLAGS='$LTCFLAGS' +compiler='$compiler_DEFAULT' + +# A function that is used when there is no print builtin or printf. +func_fallback_echo () +{ + eval 'cat <<_LTECHO_EOF +\$1 +_LTECHO_EOF' +} + +# Quote evaled strings. +for var in SHELL \ +ECHO \ +PATH_SEPARATOR \ +SED \ +GREP \ +EGREP \ +FGREP \ +LD \ +NM \ +LN_S \ +lt_SP2NL \ +lt_NL2SP \ +reload_flag \ +OBJDUMP \ +deplibs_check_method \ +file_magic_cmd \ +file_magic_glob \ +want_nocaseglob \ +DLLTOOL \ +sharedlib_from_linklib_cmd \ +AR \ +AR_FLAGS \ +archiver_list_spec \ +STRIP \ +RANLIB \ +CC \ +CFLAGS \ +compiler \ +lt_cv_sys_global_symbol_pipe \ +lt_cv_sys_global_symbol_to_cdecl \ +lt_cv_sys_global_symbol_to_import \ +lt_cv_sys_global_symbol_to_c_name_address \ +lt_cv_sys_global_symbol_to_c_name_address_lib_prefix \ +lt_cv_nm_interface \ +nm_file_list_spec \ +lt_cv_truncate_bin \ +lt_prog_compiler_no_builtin_flag \ +lt_prog_compiler_pic \ +lt_prog_compiler_wl \ +lt_prog_compiler_static \ +lt_cv_prog_compiler_c_o \ +need_locks \ +MANIFEST_TOOL \ +DSYMUTIL \ +NMEDIT \ +LIPO \ +OTOOL \ +OTOOL64 \ +shrext_cmds \ +export_dynamic_flag_spec \ +whole_archive_flag_spec \ +compiler_needs_object \ +with_gnu_ld \ +allow_undefined_flag \ +no_undefined_flag \ +hardcode_libdir_flag_spec \ +hardcode_libdir_separator \ +exclude_expsyms \ +include_expsyms \ +file_list_spec \ +variables_saved_for_relink \ +libname_spec \ +library_names_spec \ +soname_spec \ +install_override_mode \ +finish_eval \ +old_striplib \ +striplib \ +compiler_lib_search_dirs \ +predep_objects \ +postdep_objects \ +predeps \ +postdeps \ +compiler_lib_search_path \ +LD_CXX \ +reload_flag_CXX \ +compiler_CXX \ +lt_prog_compiler_no_builtin_flag_CXX \ +lt_prog_compiler_pic_CXX \ +lt_prog_compiler_wl_CXX \ +lt_prog_compiler_static_CXX \ +lt_cv_prog_compiler_c_o_CXX \ +export_dynamic_flag_spec_CXX \ +whole_archive_flag_spec_CXX \ +compiler_needs_object_CXX \ +with_gnu_ld_CXX \ +allow_undefined_flag_CXX \ +no_undefined_flag_CXX \ +hardcode_libdir_flag_spec_CXX \ +hardcode_libdir_separator_CXX \ +exclude_expsyms_CXX \ +include_expsyms_CXX \ +file_list_spec_CXX \ +compiler_lib_search_dirs_CXX \ +predep_objects_CXX \ +postdep_objects_CXX \ +predeps_CXX \ +postdeps_CXX \ +compiler_lib_search_path_CXX; do + case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in + *[\\\\\\\`\\"\\\$]*) + eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes + ;; + *) + eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\"" + ;; + esac +done + +# Double-quote double-evaled strings. +for var in reload_cmds \ +old_postinstall_cmds \ +old_postuninstall_cmds \ +old_archive_cmds \ +extract_expsyms_cmds \ +old_archive_from_new_cmds \ +old_archive_from_expsyms_cmds \ +archive_cmds \ +archive_expsym_cmds \ +module_cmds \ +module_expsym_cmds \ +export_symbols_cmds \ +prelink_cmds \ +postlink_cmds \ +postinstall_cmds \ +postuninstall_cmds \ +finish_cmds \ +sys_lib_search_path_spec \ +configure_time_dlsearch_path \ +configure_time_lt_sys_library_path \ +reload_cmds_CXX \ +old_archive_cmds_CXX \ +old_archive_from_new_cmds_CXX \ +old_archive_from_expsyms_cmds_CXX \ +archive_cmds_CXX \ +archive_expsym_cmds_CXX \ +module_cmds_CXX \ +module_expsym_cmds_CXX \ +export_symbols_cmds_CXX \ +prelink_cmds_CXX \ +postlink_cmds_CXX; do + case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in + *[\\\\\\\`\\"\\\$]*) + eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes + ;; + *) + eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\"" + ;; + esac +done + +ac_aux_dir='$ac_aux_dir' + +# See if we are running on zsh, and set the options that allow our +# commands through without removal of \ escapes INIT. +if test -n "\${ZSH_VERSION+set}"; then + setopt NO_GLOB_SUBST +fi + + + PACKAGE='$PACKAGE' + VERSION='$VERSION' + RM='$RM' + ofile='$ofile' + + + + + + +_ACEOF + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 + +# Handling of arguments. +for ac_config_target in $ac_config_targets +do + case $ac_config_target in + "depfiles") CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;; + "libtool") CONFIG_COMMANDS="$CONFIG_COMMANDS libtool" ;; + "config.h") CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;; + "podwrapper.pl") CONFIG_FILES="$CONFIG_FILES podwrapper.pl" ;; + "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;; + "bash/Makefile") CONFIG_FILES="$CONFIG_FILES bash/Makefile" ;; + "common/bitmap/Makefile") CONFIG_FILES="$CONFIG_FILES common/bitmap/Makefile" ;; + "common/gpt/Makefile") CONFIG_FILES="$CONFIG_FILES common/gpt/Makefile" ;; + "common/include/Makefile") CONFIG_FILES="$CONFIG_FILES common/include/Makefile" ;; + "common/protocol/Makefile") CONFIG_FILES="$CONFIG_FILES common/protocol/Makefile" ;; + "common/regions/Makefile") CONFIG_FILES="$CONFIG_FILES common/regions/Makefile" ;; + "common/sparse/Makefile") CONFIG_FILES="$CONFIG_FILES common/sparse/Makefile" ;; + "common/utils/Makefile") CONFIG_FILES="$CONFIG_FILES common/utils/Makefile" ;; + "docs/Makefile") CONFIG_FILES="$CONFIG_FILES docs/Makefile" ;; + "include/Makefile") CONFIG_FILES="$CONFIG_FILES include/Makefile" ;; + "plugins/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/Makefile" ;; + "plugins/curl/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/curl/Makefile" ;; + "plugins/data/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/data/Makefile" ;; + "plugins/example1/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/example1/Makefile" ;; + "plugins/example2/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/example2/Makefile" ;; + "plugins/example3/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/example3/Makefile" ;; + "plugins/example4/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/example4/Makefile" ;; + "plugins/ext2/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/ext2/Makefile" ;; + "plugins/file/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/file/Makefile" ;; + "plugins/floppy/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/floppy/Makefile" ;; + "plugins/full/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/full/Makefile" ;; + "plugins/guestfs/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/guestfs/Makefile" ;; + "plugins/gzip/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/gzip/Makefile" ;; + "plugins/iso/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/iso/Makefile" ;; + "plugins/libvirt/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/libvirt/Makefile" ;; + "plugins/linuxdisk/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/linuxdisk/Makefile" ;; + "plugins/lua/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/lua/Makefile" ;; + "plugins/memory/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/memory/Makefile" ;; + "plugins/nbd/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/nbd/Makefile" ;; + "plugins/null/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/null/Makefile" ;; + "plugins/ocaml/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/ocaml/Makefile" ;; + "plugins/partitioning/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/partitioning/Makefile" ;; + "plugins/pattern/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/pattern/Makefile" ;; + "plugins/perl/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/perl/Makefile" ;; + "plugins/python/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/python/Makefile" ;; + "plugins/random/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/random/Makefile" ;; + "plugins/ruby/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/ruby/Makefile" ;; + "plugins/rust/Cargo.toml") CONFIG_FILES="$CONFIG_FILES plugins/rust/Cargo.toml" ;; + "plugins/rust/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/rust/Makefile" ;; + "plugins/sh/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/sh/Makefile" ;; + "plugins/ssh/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/ssh/Makefile" ;; + "plugins/split/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/split/Makefile" ;; + "plugins/streaming/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/streaming/Makefile" ;; + "plugins/tar/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/tar/Makefile" ;; + "plugins/tcl/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/tcl/Makefile" ;; + "plugins/vddk/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/vddk/Makefile" ;; + "plugins/zero/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/zero/Makefile" ;; + "filters/Makefile") CONFIG_FILES="$CONFIG_FILES filters/Makefile" ;; + "filters/blocksize/Makefile") CONFIG_FILES="$CONFIG_FILES filters/blocksize/Makefile" ;; + "filters/cache/Makefile") CONFIG_FILES="$CONFIG_FILES filters/cache/Makefile" ;; + "filters/cow/Makefile") CONFIG_FILES="$CONFIG_FILES filters/cow/Makefile" ;; + "filters/delay/Makefile") CONFIG_FILES="$CONFIG_FILES filters/delay/Makefile" ;; + "filters/error/Makefile") CONFIG_FILES="$CONFIG_FILES filters/error/Makefile" ;; + "filters/fua/Makefile") CONFIG_FILES="$CONFIG_FILES filters/fua/Makefile" ;; + "filters/log/Makefile") CONFIG_FILES="$CONFIG_FILES filters/log/Makefile" ;; + "filters/noextents/Makefile") CONFIG_FILES="$CONFIG_FILES filters/noextents/Makefile" ;; + "filters/nozero/Makefile") CONFIG_FILES="$CONFIG_FILES filters/nozero/Makefile" ;; + "filters/offset/Makefile") CONFIG_FILES="$CONFIG_FILES filters/offset/Makefile" ;; + "filters/partition/Makefile") CONFIG_FILES="$CONFIG_FILES filters/partition/Makefile" ;; + "filters/rate/Makefile") CONFIG_FILES="$CONFIG_FILES filters/rate/Makefile" ;; + "filters/readahead/Makefile") CONFIG_FILES="$CONFIG_FILES filters/readahead/Makefile" ;; + "filters/truncate/Makefile") CONFIG_FILES="$CONFIG_FILES filters/truncate/Makefile" ;; + "filters/xz/Makefile") CONFIG_FILES="$CONFIG_FILES filters/xz/Makefile" ;; + "fuzzing/Makefile") CONFIG_FILES="$CONFIG_FILES fuzzing/Makefile" ;; + "server/Makefile") CONFIG_FILES="$CONFIG_FILES server/Makefile" ;; + "server/nbdkit.pc") CONFIG_FILES="$CONFIG_FILES server/nbdkit.pc" ;; + "tests/functions.sh") CONFIG_FILES="$CONFIG_FILES tests/functions.sh" ;; + "tests/Makefile") CONFIG_FILES="$CONFIG_FILES tests/Makefile" ;; + "valgrind/Makefile") CONFIG_FILES="$CONFIG_FILES valgrind/Makefile" ;; + + *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;; + esac +done + + +# If the user did not use the arguments to specify the items to instantiate, +# then the envvar interface is used. Set only those that are not. +# We use the long form for the default assignment because of an extremely +# bizarre bug on SunOS 4.1.3. +if $ac_need_defaults; then + test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files + test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers + test "${CONFIG_COMMANDS+set}" = set || CONFIG_COMMANDS=$config_commands +fi + +# Have a temporary directory for convenience. Make it in the build tree +# simply because there is no reason against having it here, and in addition, +# creating and moving files from /tmp can sometimes cause problems. +# Hook for its removal unless debugging. +# Note that there is a small window in which the directory will not be cleaned: +# after its creation but before its name has been assigned to `$tmp'. +$debug || +{ + tmp= ac_tmp= + trap 'exit_status=$? + : "${ac_tmp:=$tmp}" + { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status +' 0 + trap 'as_fn_exit 1' 1 2 13 15 +} +# Create a (secure) tmp directory for tmp files. + +{ + tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` && + test -d "$tmp" +} || +{ + tmp=./conf$$-$RANDOM + (umask 077 && mkdir "$tmp") +} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5 +ac_tmp=$tmp + +# Set up the scripts for CONFIG_FILES section. +# No need to generate them if there are no CONFIG_FILES. +# This happens for instance with `./config.status config.h'. +if test -n "$CONFIG_FILES"; then + + +ac_cr=`echo X | tr X '\015'` +# On cygwin, bash can eat \r inside `` if the user requested igncr. +# But we know of no other shell where ac_cr would be empty at this +# point, so we can use a bashism as a fallback. +if test "x$ac_cr" = x; then + eval ac_cr=\$\'\\r\' +fi +ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' /dev/null` +if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then + ac_cs_awk_cr='\\r' +else + ac_cs_awk_cr=$ac_cr +fi + +echo 'BEGIN {' >"$ac_tmp/subs1.awk" && +_ACEOF + + +{ + echo "cat >conf$$subs.awk <<_ACEOF" && + echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' && + echo "_ACEOF" +} >conf$$subs.sh || + as_fn_error $? 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There is NO +# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + +# GNU Libtool is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of of the License, or +# (at your option) any later version. +# +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program or library that is built +# using GNU Libtool, you may include this file under the same +# distribution terms that you use for the rest of that program. +# +# GNU Libtool is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + + +# The names of the tagged configurations supported by this script. +available_tags='CXX ' + +# Configured defaults for sys_lib_dlsearch_path munging. +: \${LT_SYS_LIBRARY_PATH="$configure_time_lt_sys_library_path"} + +# ### BEGIN LIBTOOL CONFIG + +# Which release of libtool.m4 was used? +macro_version=$macro_version +macro_revision=$macro_revision + +# Whether or not to build shared libraries. +build_libtool_libs=$enable_shared + +# Whether or not to build static libraries. +build_old_libs=$enable_static + +# What type of objects to build. +pic_mode=$pic_mode + +# Whether or not to optimize for fast installation. +fast_install=$enable_fast_install + +# Shared archive member basename,for filename based shared library versioning on AIX. +shared_archive_member_spec=$shared_archive_member_spec + +# Shell to use when invoking shell scripts. +SHELL=$lt_SHELL + +# An echo program that protects backslashes. +ECHO=$lt_ECHO + +# The PATH separator for the build system. +PATH_SEPARATOR=$lt_PATH_SEPARATOR + +# The host system. +host_alias=$host_alias +host=$host +host_os=$host_os + +# The build system. +build_alias=$build_alias +build=$build +build_os=$build_os + +# A sed program that does not truncate output. +SED=$lt_SED + +# Sed that helps us avoid accidentally triggering echo(1) options like -n. +Xsed="\$SED -e 1s/^X//" + +# A grep program that handles long lines. +GREP=$lt_GREP + +# An ERE matcher. +EGREP=$lt_EGREP + +# A literal string matcher. +FGREP=$lt_FGREP + +# A BSD- or MS-compatible name lister. +NM=$lt_NM + +# Whether we need soft or hard links. +LN_S=$lt_LN_S + +# What is the maximum length of a command? +max_cmd_len=$max_cmd_len + +# Object file suffix (normally "o"). +objext=$ac_objext + +# Executable file suffix (normally ""). +exeext=$exeext + +# whether the shell understands "unset". +lt_unset=$lt_unset + +# turn spaces into newlines. +SP2NL=$lt_lt_SP2NL + +# turn newlines into spaces. +NL2SP=$lt_lt_NL2SP + +# convert \$build file names to \$host format. +to_host_file_cmd=$lt_cv_to_host_file_cmd + +# convert \$build files to toolchain format. +to_tool_file_cmd=$lt_cv_to_tool_file_cmd + +# An object symbol dumper. +OBJDUMP=$lt_OBJDUMP + +# Method to check whether dependent libraries are shared objects. +deplibs_check_method=$lt_deplibs_check_method + +# Command to use when deplibs_check_method = "file_magic". +file_magic_cmd=$lt_file_magic_cmd + +# How to find potential files when deplibs_check_method = "file_magic". +file_magic_glob=$lt_file_magic_glob + +# Find potential files using nocaseglob when deplibs_check_method = "file_magic". +want_nocaseglob=$lt_want_nocaseglob + +# DLL creation program. +DLLTOOL=$lt_DLLTOOL + +# Command to associate shared and link libraries. +sharedlib_from_linklib_cmd=$lt_sharedlib_from_linklib_cmd + +# The archiver. +AR=$lt_AR + +# Flags to create an archive. +AR_FLAGS=$lt_AR_FLAGS + +# How to feed a file listing to the archiver. +archiver_list_spec=$lt_archiver_list_spec + +# A symbol stripping program. +STRIP=$lt_STRIP + +# Commands used to install an old-style archive. +RANLIB=$lt_RANLIB +old_postinstall_cmds=$lt_old_postinstall_cmds +old_postuninstall_cmds=$lt_old_postuninstall_cmds + +# Whether to use a lock for old archive extraction. +lock_old_archive_extraction=$lock_old_archive_extraction + +# A C compiler. +LTCC=$lt_CC + +# LTCC compiler flags. +LTCFLAGS=$lt_CFLAGS + +# Take the output of nm and produce a listing of raw symbols and C names. +global_symbol_pipe=$lt_lt_cv_sys_global_symbol_pipe + +# Transform the output of nm in a proper C declaration. +global_symbol_to_cdecl=$lt_lt_cv_sys_global_symbol_to_cdecl + +# Transform the output of nm into a list of symbols to manually relocate. +global_symbol_to_import=$lt_lt_cv_sys_global_symbol_to_import + +# Transform the output of nm in a C name address pair. +global_symbol_to_c_name_address=$lt_lt_cv_sys_global_symbol_to_c_name_address + +# Transform the output of nm in a C name address pair when lib prefix is needed. +global_symbol_to_c_name_address_lib_prefix=$lt_lt_cv_sys_global_symbol_to_c_name_address_lib_prefix + +# The name lister interface. +nm_interface=$lt_lt_cv_nm_interface + +# Specify filename containing input files for \$NM. +nm_file_list_spec=$lt_nm_file_list_spec + +# The root where to search for dependent libraries,and where our libraries should be installed. +lt_sysroot=$lt_sysroot + +# Command to truncate a binary pipe. +lt_truncate_bin=$lt_lt_cv_truncate_bin + +# The name of the directory that contains temporary libtool files. +objdir=$objdir + +# Used to examine libraries when file_magic_cmd begins with "file". +MAGIC_CMD=$MAGIC_CMD + +# Must we lock files when doing compilation? +need_locks=$lt_need_locks + +# Manifest tool. +MANIFEST_TOOL=$lt_MANIFEST_TOOL + +# Tool to manipulate archived DWARF debug symbol files on Mac OS X. +DSYMUTIL=$lt_DSYMUTIL + +# Tool to change global to local symbols on Mac OS X. +NMEDIT=$lt_NMEDIT + +# Tool to manipulate fat objects and archives on Mac OS X. +LIPO=$lt_LIPO + +# ldd/readelf like tool for Mach-O binaries on Mac OS X. +OTOOL=$lt_OTOOL + +# ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4. +OTOOL64=$lt_OTOOL64 + +# Old archive suffix (normally "a"). +libext=$libext + +# Shared library suffix (normally ".so"). +shrext_cmds=$lt_shrext_cmds + +# The commands to extract the exported symbol list from a shared archive. +extract_expsyms_cmds=$lt_extract_expsyms_cmds + +# Variables whose values should be saved in libtool wrapper scripts and +# restored at link time. +variables_saved_for_relink=$lt_variables_saved_for_relink + +# Do we need the "lib" prefix for modules? +need_lib_prefix=$need_lib_prefix + +# Do we need a version for libraries? +need_version=$need_version + +# Library versioning type. +version_type=$version_type + +# Shared library runtime path variable. +runpath_var=$runpath_var + +# Shared library path variable. +shlibpath_var=$shlibpath_var + +# Is shlibpath searched before the hard-coded library search path? +shlibpath_overrides_runpath=$shlibpath_overrides_runpath + +# Format of library name prefix. +libname_spec=$lt_libname_spec + +# List of archive names. First name is the real one, the rest are links. +# The last name is the one that the linker finds with -lNAME +library_names_spec=$lt_library_names_spec + +# The coded name of the library, if different from the real name. +soname_spec=$lt_soname_spec + +# Permission mode override for installation of shared libraries. +install_override_mode=$lt_install_override_mode + +# Command to use after installation of a shared archive. +postinstall_cmds=$lt_postinstall_cmds + +# Command to use after uninstallation of a shared archive. +postuninstall_cmds=$lt_postuninstall_cmds + +# Commands used to finish a libtool library installation in a directory. +finish_cmds=$lt_finish_cmds + +# As "finish_cmds", except a single script fragment to be evaled but +# not shown. +finish_eval=$lt_finish_eval + +# Whether we should hardcode library paths into libraries. +hardcode_into_libs=$hardcode_into_libs + +# Compile-time system search path for libraries. +sys_lib_search_path_spec=$lt_sys_lib_search_path_spec + +# Detected run-time system search path for libraries. +sys_lib_dlsearch_path_spec=$lt_configure_time_dlsearch_path + +# Explicit LT_SYS_LIBRARY_PATH set during ./configure time. +configure_time_lt_sys_library_path=$lt_configure_time_lt_sys_library_path + +# Whether dlopen is supported. +dlopen_support=$enable_dlopen + +# Whether dlopen of programs is supported. +dlopen_self=$enable_dlopen_self + +# Whether dlopen of statically linked programs is supported. +dlopen_self_static=$enable_dlopen_self_static + +# Commands to strip libraries. +old_striplib=$lt_old_striplib +striplib=$lt_striplib + + +# The linker used to build libraries. +LD=$lt_LD + +# How to create reloadable object files. +reload_flag=$lt_reload_flag +reload_cmds=$lt_reload_cmds + +# Commands used to build an old-style archive. +old_archive_cmds=$lt_old_archive_cmds + +# A language specific compiler. +CC=$lt_compiler + +# Is the compiler the GNU compiler? +with_gcc=$GCC + +# Compiler flag to turn off builtin functions. +no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag + +# Additional compiler flags for building library objects. +pic_flag=$lt_lt_prog_compiler_pic + +# How to pass a linker flag through the compiler. +wl=$lt_lt_prog_compiler_wl + +# Compiler flag to prevent dynamic linking. +link_static_flag=$lt_lt_prog_compiler_static + +# Does compiler simultaneously support -c and -o options? +compiler_c_o=$lt_lt_cv_prog_compiler_c_o + +# Whether or not to add -lc for building shared libraries. +build_libtool_need_lc=$archive_cmds_need_lc + +# Whether or not to disallow shared libs when runtime libs are static. +allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes + +# Compiler flag to allow reflexive dlopens. +export_dynamic_flag_spec=$lt_export_dynamic_flag_spec + +# Compiler flag to generate shared objects directly from archives. +whole_archive_flag_spec=$lt_whole_archive_flag_spec + +# Whether the compiler copes with passing no objects directly. +compiler_needs_object=$lt_compiler_needs_object + +# Create an old-style archive from a shared archive. +old_archive_from_new_cmds=$lt_old_archive_from_new_cmds + +# Create a temporary old-style archive to link instead of a shared archive. +old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds + +# Commands used to build a shared archive. +archive_cmds=$lt_archive_cmds +archive_expsym_cmds=$lt_archive_expsym_cmds + +# Commands used to build a loadable module if different from building +# a shared archive. +module_cmds=$lt_module_cmds +module_expsym_cmds=$lt_module_expsym_cmds + +# Whether we are building with GNU ld or not. +with_gnu_ld=$lt_with_gnu_ld + +# Flag that allows shared libraries with undefined symbols to be built. +allow_undefined_flag=$lt_allow_undefined_flag + +# Flag that enforces no undefined symbols. +no_undefined_flag=$lt_no_undefined_flag + +# Flag to hardcode \$libdir into a binary during linking. +# This must work even if \$libdir does not exist +hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec + +# Whether we need a single "-rpath" flag with a separated argument. +hardcode_libdir_separator=$lt_hardcode_libdir_separator + +# Set to "yes" if using DIR/libNAME\$shared_ext during linking hardcodes +# DIR into the resulting binary. +hardcode_direct=$hardcode_direct + +# Set to "yes" if using DIR/libNAME\$shared_ext during linking hardcodes +# DIR into the resulting binary and the resulting library dependency is +# "absolute",i.e impossible to change by setting \$shlibpath_var if the +# library is relocated. +hardcode_direct_absolute=$hardcode_direct_absolute + +# Set to "yes" if using the -LDIR flag during linking hardcodes DIR +# into the resulting binary. +hardcode_minus_L=$hardcode_minus_L + +# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR +# into the resulting binary. +hardcode_shlibpath_var=$hardcode_shlibpath_var + +# Set to "yes" if building a shared library automatically hardcodes DIR +# into the library and all subsequent libraries and executables linked +# against it. +hardcode_automatic=$hardcode_automatic + +# Set to yes if linker adds runtime paths of dependent libraries +# to runtime path list. +inherit_rpath=$inherit_rpath + +# Whether libtool must link a program against all its dependency libraries. +link_all_deplibs=$link_all_deplibs + +# Set to "yes" if exported symbols are required. +always_export_symbols=$always_export_symbols + +# The commands to list exported symbols. +export_symbols_cmds=$lt_export_symbols_cmds + +# Symbols that should not be listed in the preloaded symbols. +exclude_expsyms=$lt_exclude_expsyms + +# Symbols that must always be exported. +include_expsyms=$lt_include_expsyms + +# Commands necessary for linking programs (against libraries) with templates. +prelink_cmds=$lt_prelink_cmds + +# Commands necessary for finishing linking programs. +postlink_cmds=$lt_postlink_cmds + +# Specify filename containing input files. +file_list_spec=$lt_file_list_spec + +# How to hardcode a shared library path into an executable. +hardcode_action=$hardcode_action + +# The directories searched by this compiler when creating a shared library. +compiler_lib_search_dirs=$lt_compiler_lib_search_dirs + +# Dependencies to place before and after the objects being linked to +# create a shared library. +predep_objects=$lt_predep_objects +postdep_objects=$lt_postdep_objects +predeps=$lt_predeps +postdeps=$lt_postdeps + +# The library search path used internally by the compiler when linking +# a shared library. +compiler_lib_search_path=$lt_compiler_lib_search_path + +# ### END LIBTOOL CONFIG + +_LT_EOF + + cat <<'_LT_EOF' >> "$cfgfile" + +# ### BEGIN FUNCTIONS SHARED WITH CONFIGURE + +# func_munge_path_list VARIABLE PATH +# ----------------------------------- +# VARIABLE is name of variable containing _space_ separated list of +# directories to be munged by the contents of PATH, which is string +# having a format: +# "DIR[:DIR]:" +# string "DIR[ DIR]" will be prepended to VARIABLE +# ":DIR[:DIR]" +# string "DIR[ DIR]" will be appended to VARIABLE +# "DIRP[:DIRP]::[DIRA:]DIRA" +# string "DIRP[ DIRP]" will be prepended to VARIABLE and string +# "DIRA[ DIRA]" will be appended to VARIABLE +# "DIR[:DIR]" +# VARIABLE will be replaced by "DIR[ DIR]" +func_munge_path_list () +{ + case x$2 in + x) + ;; + *:) + eval $1=\"`$ECHO $2 | $SED 's/:/ /g'` \$$1\" + ;; + x:*) + eval $1=\"\$$1 `$ECHO $2 | $SED 's/:/ /g'`\" + ;; + *::*) + eval $1=\"\$$1\ `$ECHO $2 | $SED -e 's/.*:://' -e 's/:/ /g'`\" + eval $1=\"`$ECHO $2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \$$1\" + ;; + *) + eval $1=\"`$ECHO $2 | $SED 's/:/ /g'`\" + ;; + esac +} + + +# Calculate cc_basename. Skip known compiler wrappers and cross-prefix. +func_cc_basename () +{ + for cc_temp in $*""; do + case $cc_temp in + compile | *[\\/]compile | ccache | *[\\/]ccache ) ;; + distcc | *[\\/]distcc | purify | *[\\/]purify ) ;; + \-*) ;; + *) break;; + esac + done + func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"` +} + + +# ### END FUNCTIONS SHARED WITH CONFIGURE + +_LT_EOF + + case $host_os in + aix3*) + cat <<\_LT_EOF >> "$cfgfile" +# AIX sometimes has problems with the GCC collect2 program. For some +# reason, if we set the COLLECT_NAMES environment variable, the problems +# vanish in a puff of smoke. +if test set != "${COLLECT_NAMES+set}"; then + COLLECT_NAMES= + export COLLECT_NAMES +fi +_LT_EOF + ;; + esac + + +ltmain=$ac_aux_dir/ltmain.sh + + + # We use sed instead of cat because bash on DJGPP gets confused if + # if finds mixed CR/LF and LF-only lines. Since sed operates in + # text mode, it properly converts lines to CR/LF. This bash problem + # is reportedly fixed, but why not run on old versions too? + sed '$q' "$ltmain" >> "$cfgfile" \ + || (rm -f "$cfgfile"; exit 1) + + mv -f "$cfgfile" "$ofile" || + (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile") + chmod +x "$ofile" + + + cat <<_LT_EOF >> "$ofile" + +# ### BEGIN LIBTOOL TAG CONFIG: CXX + +# The linker used to build libraries. +LD=$lt_LD_CXX + +# How to create reloadable object files. +reload_flag=$lt_reload_flag_CXX +reload_cmds=$lt_reload_cmds_CXX + +# Commands used to build an old-style archive. +old_archive_cmds=$lt_old_archive_cmds_CXX + +# A language specific compiler. +CC=$lt_compiler_CXX + +# Is the compiler the GNU compiler? +with_gcc=$GCC_CXX + +# Compiler flag to turn off builtin functions. +no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag_CXX + +# Additional compiler flags for building library objects. +pic_flag=$lt_lt_prog_compiler_pic_CXX + +# How to pass a linker flag through the compiler. +wl=$lt_lt_prog_compiler_wl_CXX + +# Compiler flag to prevent dynamic linking. +link_static_flag=$lt_lt_prog_compiler_static_CXX + +# Does compiler simultaneously support -c and -o options? +compiler_c_o=$lt_lt_cv_prog_compiler_c_o_CXX + +# Whether or not to add -lc for building shared libraries. +build_libtool_need_lc=$archive_cmds_need_lc_CXX + +# Whether or not to disallow shared libs when runtime libs are static. +allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes_CXX + +# Compiler flag to allow reflexive dlopens. +export_dynamic_flag_spec=$lt_export_dynamic_flag_spec_CXX + +# Compiler flag to generate shared objects directly from archives. +whole_archive_flag_spec=$lt_whole_archive_flag_spec_CXX + +# Whether the compiler copes with passing no objects directly. +compiler_needs_object=$lt_compiler_needs_object_CXX + +# Create an old-style archive from a shared archive. +old_archive_from_new_cmds=$lt_old_archive_from_new_cmds_CXX + +# Create a temporary old-style archive to link instead of a shared archive. +old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds_CXX + +# Commands used to build a shared archive. +archive_cmds=$lt_archive_cmds_CXX +archive_expsym_cmds=$lt_archive_expsym_cmds_CXX + +# Commands used to build a loadable module if different from building +# a shared archive. +module_cmds=$lt_module_cmds_CXX +module_expsym_cmds=$lt_module_expsym_cmds_CXX + +# Whether we are building with GNU ld or not. +with_gnu_ld=$lt_with_gnu_ld_CXX + +# Flag that allows shared libraries with undefined symbols to be built. +allow_undefined_flag=$lt_allow_undefined_flag_CXX + +# Flag that enforces no undefined symbols. +no_undefined_flag=$lt_no_undefined_flag_CXX + +# Flag to hardcode \$libdir into a binary during linking. +# This must work even if \$libdir does not exist +hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec_CXX + +# Whether we need a single "-rpath" flag with a separated argument. +hardcode_libdir_separator=$lt_hardcode_libdir_separator_CXX + +# Set to "yes" if using DIR/libNAME\$shared_ext during linking hardcodes +# DIR into the resulting binary. +hardcode_direct=$hardcode_direct_CXX + +# Set to "yes" if using DIR/libNAME\$shared_ext during linking hardcodes +# DIR into the resulting binary and the resulting library dependency is +# "absolute",i.e impossible to change by setting \$shlibpath_var if the +# library is relocated. +hardcode_direct_absolute=$hardcode_direct_absolute_CXX + +# Set to "yes" if using the -LDIR flag during linking hardcodes DIR +# into the resulting binary. +hardcode_minus_L=$hardcode_minus_L_CXX + +# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR +# into the resulting binary. +hardcode_shlibpath_var=$hardcode_shlibpath_var_CXX + +# Set to "yes" if building a shared library automatically hardcodes DIR +# into the library and all subsequent libraries and executables linked +# against it. +hardcode_automatic=$hardcode_automatic_CXX + +# Set to yes if linker adds runtime paths of dependent libraries +# to runtime path list. +inherit_rpath=$inherit_rpath_CXX + +# Whether libtool must link a program against all its dependency libraries. +link_all_deplibs=$link_all_deplibs_CXX + +# Set to "yes" if exported symbols are required. +always_export_symbols=$always_export_symbols_CXX + +# The commands to list exported symbols. +export_symbols_cmds=$lt_export_symbols_cmds_CXX + +# Symbols that should not be listed in the preloaded symbols. +exclude_expsyms=$lt_exclude_expsyms_CXX + +# Symbols that must always be exported. +include_expsyms=$lt_include_expsyms_CXX + +# Commands necessary for linking programs (against libraries) with templates. +prelink_cmds=$lt_prelink_cmds_CXX + +# Commands necessary for finishing linking programs. +postlink_cmds=$lt_postlink_cmds_CXX + +# Specify filename containing input files. +file_list_spec=$lt_file_list_spec_CXX + +# How to hardcode a shared library path into an executable. +hardcode_action=$hardcode_action_CXX + +# The directories searched by this compiler when creating a shared library. +compiler_lib_search_dirs=$lt_compiler_lib_search_dirs_CXX + +# Dependencies to place before and after the objects being linked to +# create a shared library. +predep_objects=$lt_predep_objects_CXX +postdep_objects=$lt_postdep_objects_CXX +predeps=$lt_predeps_CXX +postdeps=$lt_postdeps_CXX + +# The library search path used internally by the compiler when linking +# a shared library. +compiler_lib_search_path=$lt_compiler_lib_search_path_CXX + +# ### END LIBTOOL TAG CONFIG: CXX +_LT_EOF + + ;; + "podwrapper.pl":F) chmod +x,-w podwrapper.pl ;; + + esac +done # for ac_tag + + +as_fn_exit 0 +_ACEOF +ac_clean_files=$ac_clean_files_save + +test $ac_write_fail = 0 || + as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5 + + +# configure is writing to config.log, and then calls config.status. +# config.status does its own redirection, appending to config.log. +# Unfortunately, on DOS this fails, as config.log is still kept open +# by configure, so config.status won't be able to write to it; its +# output is simply discarded. So we exec the FD to /dev/null, +# effectively closing config.log, so it can be properly (re)opened and +# appended to by config.status. When coming back to configure, we +# need to make the FD available again. +if test "$no_create" != yes; then + ac_cs_success=: + ac_config_status_args= + test "$silent" = yes && + ac_config_status_args="$ac_config_status_args --quiet" + exec 5>/dev/null + $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false + exec 5>>config.log + # Use ||, not &&, to avoid exiting from the if with $? = 1, which + # would make configure fail if this is the last instruction. + $ac_cs_success || as_fn_exit 1 +fi +if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5 +$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;} +fi + + +echo +echo +echo "----------------------------------------------------------------------" +echo "Thank you for downloading $PACKAGE_STRING" +echo +echo "This is how we have configured the optional components for you today:" +echo + +feature () +{ + echo -n " $1" + shift + if $@; then echo "yes"; else echo "no"; fi +} + +echo "Optional server features:" +echo +feature "bash-completion ........................ " \ + test "x$HAVE_BASH_COMPLETION_TRUE" = "x" +feature "manual pages ........................... " \ + test "x$HAVE_POD_TRUE" = "x" +feature "SELinux ................................ " \ + test "x$LIBSELINUX_LIBS" != "x" +feature "TLS .................................... " \ + test "x$GNUTLS_LIBS" != "x" + +echo +echo "Optional plugins:" +echo +feature "curl ................................... " \ + test "x$HAVE_CURL_TRUE" = "x" +feature "example4 ............................... " \ + test "x$HAVE_PERL_TRUE" = "x" +feature "ext2 ................................... " \ + test "x$HAVE_EXT2_TRUE" = "x" +feature "floppy ................................. " \ + test "x$HAVE_ICONV_TRUE" = "x" +feature "guestfs ................................ " \ + test "x$HAVE_LIBGUESTFS_TRUE" = "x" +feature "gzip ................................... " \ + test "x$HAVE_ZLIB_TRUE" = "x" +feature "iso .................................... " \ + test "x$HAVE_ISO_TRUE" = "x" +feature "libvirt ................................ " \ + test "x$HAVE_LIBVIRT_TRUE" = "x" +feature "ssh .................................... " \ + test "x$HAVE_SSH_TRUE" = "x" +feature "tar .................................... " \ + test "x$HAVE_PERL_TRUE" = "x" +feature "vddk ................................... " \ + test "x$HAVE_VDDK_TRUE" = "x" + + +echo +echo "Languages:" +echo +feature "lua .................................... " \ + test "x$HAVE_LUA_TRUE" = "x" +feature "ocaml .................................. " \ + test "x$HAVE_OCAML_TRUE" = "x" +feature "perl ................................... " \ + test "x$HAVE_PERL_TRUE" = "x" +feature "python ................................. " \ + test "x$HAVE_PYTHON_TRUE" = "x" +feature "ruby ................................... " \ + test "x$HAVE_RUBY_TRUE" = "x" +feature "rust ................................... " \ + test "x$HAVE_RUST_TRUE" = "x" +feature "tcl .................................... " \ + test "x$HAVE_TCL_TRUE" = "x" + + +echo +echo "Optional filters:" +echo +feature "xz ..................................... " \ + test "x$HAVE_LIBLZMA_TRUE" = "x" + +echo +echo "If any optional component is configured ‘no’ when you expected ‘yes’" +echo "then you should check the preceding messages and README." +echo +echo "Please report bugs back to the mailing list:" +echo "http://www.redhat.com/mailman/listinfo/libguestfs" +echo +echo "Next you should type 'make' to build the package," +echo "then 'make check' to run the tests." diff --git a/configure.ac b/configure.ac new file mode 100644 index 0000000..a8b3e6a --- /dev/null +++ b/configure.ac @@ -0,0 +1,1011 @@ +# nbdkit +# Copyright (C) 2013-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +AC_INIT([nbdkit], [1.12.2]) +AC_CONFIG_MACRO_DIR([m4]) +m4_ifdef([AC_USE_SYSTEM_EXTENSIONS],[], + [m4_define([AC_USE_SYSTEM_EXTENSIONS],[])]) +AC_USE_SYSTEM_EXTENSIONS +AC_SYS_LARGEFILE + +dnl NB: Do not [quote] this parameter. +AM_INIT_AUTOMAKE(foreign) +AC_PROG_LIBTOOL +LT_INIT + +AC_CANONICAL_HOST + +AC_PROG_SED + +dnl Check for basic C environment. +AC_PROG_CC_STDC +AC_PROG_INSTALL +AC_PROG_CPP +AC_CANONICAL_HOST + +AC_C_PROTOTYPES +test "x$U" != "x" && AC_MSG_ERROR([Compiler not ANSI compliant]) + +AM_PROG_CC_C_O + +dnl Check for C++ (optional, we just use this to test the header +dnl can be included from C++ code). +AC_PROG_CXX + +dnl The C++ compiler test is pretty useless because even if it fails +dnl it sets CXX=g++. So test the compiler actually works. +AC_MSG_CHECKING([if the C++ compiler really really works]) +AS_IF([$CXX --version >&AS_MESSAGE_LOG_FD 2>&1],[have_cxx=yes],[have_cxx=no]) +AC_MSG_RESULT([$have_cxx]) +AM_CONDITIONAL([HAVE_CXX], [test "$have_cxx" = "yes"]) + +AC_ARG_ENABLE([gcc-warnings], + [AS_HELP_STRING([--enable-gcc-warnings], + [turn on lots of GCC warnings (for developers)])], + [case $enableval in + yes|no) ;; + *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;; + esac + gcc_warnings=$enableval], + [gcc_warnings=no] +) +if test "x$gcc_warnings" = "xyes"; then + WARNINGS_CFLAGS="-Wall -Werror" + AC_SUBST([WARNINGS_CFLAGS]) +fi + +dnl Check if the compiler supports -std=c90 flag. This is only used +dnl during a test. OpenBSD GCC does not support this flag so we skip +dnl that test. +AC_MSG_CHECKING([if the compiler supports -std=c90 for ANSI C test]) +old_CFLAGS="$CFLAGS" +CFLAGS="$CFLAGS -std=c90" +AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])], + [supports_std_c90=yes], + [supports_std_c90=no]) +CFLAGS="$old_CFLAGS" +AC_MSG_RESULT([$supports_std_c90]) +AM_CONDITIONAL([CAN_TEST_ANSI_C], [test "x$supports_std_c90" = "xyes"]) + +dnl On Haiku we must use BSD-compatibility headers to get the endian +dnl macros we use. +AC_MSG_CHECKING(whether OS-dependent include paths are required) +AS_CASE([$host_os], + [haiku*], [CFLAGS="$CFLAGS -I`findpaths -p /system B_FIND_PATH_HEADERS_DIRECTORY`/bsd"; AC_MSG_RESULT(yes)], + [AC_MSG_RESULT(no)] +) + +dnl On Linux /tmp is often tmpfs which is not large enough, so use /var/tmp. +dnl But Haiku only has /tmp. +AC_MSG_CHECKING([for temporary directory for large files]) +AS_CASE([$host_os], + [haiku*], [LARGE_TMPDIR=/tmp], + [LARGE_TMPDIR=/var/tmp] +) +AC_MSG_RESULT([$LARGE_TMPDIR]) +AC_DEFINE_UNQUOTED([LARGE_TMPDIR],["$LARGE_TMPDIR"], + [Temporary directory for large files]) + +dnl Check if libc has program_invocation_short_name. +AC_CHECK_DECLS([program_invocation_short_name], [], [], [#include ]) + +AX_PTHREAD + +dnl Check if __attribute__((cleanup(...))) works. +dnl Set -Werror, otherwise gcc will only emit a warning for attributes +dnl that it doesn't understand. +acx_nbdkit_save_CFLAGS="${CFLAGS}" +CFLAGS="${CFLAGS} -Werror" +AC_MSG_CHECKING([if __attribute__((cleanup(...))) works with this compiler]) +AC_COMPILE_IFELSE([ +AC_LANG_SOURCE([[ +#include +#include + +void +freep (void *ptr) +{ + exit (EXIT_SUCCESS); +} + +void +test (void) +{ + __attribute__((cleanup(freep))) char *ptr = malloc (100); +} + +int +main (int argc, char *argv[]) +{ + test (); + exit (EXIT_FAILURE); +} +]]) + ],[ + AC_MSG_RESULT([yes]) + ],[ + AC_MSG_RESULT([no]) + AC_MSG_ERROR( +['__attribute__((cleanup(...)))' does not work. + +You may not be using a sufficiently recent version of GCC or CLANG, or +you may be using a C compiler which does not support this attribute, +or the configure test may be wrong. + +This code requires the attribute to work for proper locking between threads.])]) +CFLAGS="${acx_nbdkit_save_CFLAGS}" + +dnl Check for __auto_type (GCC extension). +AC_MSG_CHECKING([if __auto_type is available in this compiler]) +AC_COMPILE_IFELSE([ +AC_LANG_SOURCE([[ +static int +test (int a) +{ + __auto_type at = a; + return at; +} +]]) + ],[ + AC_MSG_RESULT([yes]) + AC_DEFINE([HAVE_AUTO_TYPE],[1],[__auto_type is available]) + ],[ + AC_MSG_RESULT([no]) + ] +) + +dnl Check for other headers, all optional. +AC_CHECK_HEADERS([\ + alloca.h \ + byteswap.h \ + endian.h \ + sys/endian.h \ + sys/prctl.h \ + sys/procctl.h]) + +dnl Check for functions in libc, all optional. +AC_CHECK_FUNCS([\ + fdatasync \ + get_current_dir_name \ + mkostemp]) + +dnl Check whether printf("%m") works +AC_CACHE_CHECK([whether the printf family supports %m], + [nbdkit_cv_func_printf_percent_m], + [AC_RUN_IFELSE( + [AC_LANG_PROGRAM([[ +#include +#include +#include + ]], [[ + char buf[200] = ""; + errno = EINVAL; + snprintf(buf, sizeof buf, "%m"); + return !!strcmp (buf, strerror (EINVAL)); + ]])], + [nbdkit_cv_func_printf_percent_m=yes], + [nbdkit_cv_func_printf_percent_m=no], + [[ + case "$host_os" in + *-gnu* | gnu*) nbdkit_cv_func_printf_percent_m=yes;; + *) nbdkit_cv_func_printf_percent_m="guessing no";; + esac + ]])]) +AS_IF([test "x$nbdkit_cv_func_printf_percent_m" = xyes], + [AC_DEFINE([HAVE_VFPRINTF_PERCENT_M],[1], + [Define to 1 if vfprintf supports %m.])]) + +old_LIBS="$LIBS" +AC_SEARCH_LIBS([dlopen], [dl dld], [ + AS_IF([test "x$ac_cv_search_dlopen" != "xnone required"], + [DL_LIBS="$ac_cv_search_dlopen"], [DL_LIBS=]) + AC_SUBST([DL_LIBS]) + ], [AC_MSG_ERROR([unable to find the dlopen() function]) +]) +LIBS="$old_LIBS" + +dnl Test if header can build working binaries. +dnl +dnl On FreeBSD: iconv and libiconv both exist, both can be installed +dnl simultaneously, can exist in two separate places, and +dnl if you get the wrong header/library mix everything breaks. +dnl +dnl On Haiku: libiconv is required to link to iconv_* functions. +AC_ARG_WITH([iconv], + [AS_HELP_STRING([--without-iconv], + [don't try to link against iconv @<:@default=check@:>@])], + [], + [with_iconv=check]) +AS_IF([test "x$with_iconv" != "xno"],[ + AC_CHECK_HEADER([iconv.h],[ + AC_MSG_CHECKING([if can be used to link a program]) + AC_LINK_IFELSE([ +AC_LANG_SOURCE([[ +#include +#include +#include +int +main (int argc, char *argv[]) +{ + iconv_t ic = iconv_open ("", ""); + iconv_close (ic); + exit (0); +} +]]) + ],[ + AC_MSG_RESULT([yes]) + iconv_working=yes + ],[ + AC_MSG_RESULT([no]) + ]) + ]) + ]) +AM_CONDITIONAL([HAVE_ICONV], [test "x$iconv_working" = "xyes"]) + +dnl Don't use linker script for the server on FreeBSD because +dnl FreeBSD's linker is broken. See eg: +dnl https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=190851 +AC_MSG_CHECKING([if we should use a linker script for the server]) +AS_CASE([$host_os], + [freebsd*], [use_linker_script_for_server=no], + [use_linker_script_for_server=yes] +) +AC_MSG_RESULT([$use_linker_script_for_server]) +AM_CONDITIONAL([USE_LINKER_SCRIPT_FOR_SERVER], + [test "x$use_linker_script_for_server" = "xyes"]) + +dnl Check if -rdynamic linker flag works. +acx_nbdkit_save_LDFLAGS="${LDFLAGS}" +LDFLAGS="${LDFLAGS} -rdynamic" +AC_MSG_CHECKING([if linker supports -rdynamic]) +AC_LINK_IFELSE([ +AC_LANG_SOURCE([[ +#include +int +main (int argc, char *argv[]) +{ + exit (EXIT_SUCCESS); +} +]]) + ],[ + AC_MSG_RESULT([yes]) + DL_LDFLAGS=-rdynamic + ],[ + AC_MSG_RESULT([no]) +]) +dnl restore CFLAGS +LDFLAGS="${acx_nbdkit_save_LDFLAGS}" +AC_SUBST([DL_LDFLAGS]) + +dnl Check for dladdr in -ldl, optional. This is a glibc extension. +old_LIBS="$LIBS" +LIBS="$DL_LIBS $LIBS" +AC_CHECK_FUNCS([dladdr]) +LIBS="$old_LIBS" + +AC_SEARCH_LIBS([getaddrinfo], [network socket]) + +dnl Check for SELinux socket labelling (optional). +PKG_CHECK_MODULES([LIBSELINUX], [libselinux], [ + AC_SUBST([LIBSELINUX_CFLAGS]) + AC_SUBST([LIBSELINUX_LIBS]) + AC_DEFINE([HAVE_LIBSELINUX],[1],[libselinux found at compile time.]) +], [ + AC_MSG_WARN([libselinux not found, SELinux socket labelling support will be disabled.]) +]) + +dnl Check for GnuTLS (optional, for TLS support). +PKG_CHECK_MODULES([GNUTLS], [gnutls >= 3.3.0], [ + AC_SUBST([GNUTLS_CFLAGS]) + AC_SUBST([GNUTLS_LIBS]) + AC_DEFINE([HAVE_GNUTLS],[1],[gnutls found at compile time.]) +], [ + AC_MSG_WARN([gnutls not found or < 3.3.0, TLS support will be disabled.]) +]) + +AS_IF([test "$GNUTLS_LIBS" != ""],[ + AC_MSG_CHECKING([for default TLS session priority string]) + AC_ARG_WITH([tls-priority], + [AS_HELP_STRING([--with-tls-priority], + [default TLS session priority string @<:@default=NORMAL@:>@])], + [tls_priority=$withval], + [tls_priority=NORMAL]) + AC_MSG_RESULT([$tls_priority]) + AC_DEFINE_UNQUOTED([TLS_PRIORITY],["$tls_priority"], + [Default TLS session priority string]) + + # Check for APIs which may not be present. + old_LIBS="$LIBS" + LIBS="$GNUTLS_LIBS $LIBS" + AC_CHECK_FUNCS([\ + gnutls_base64_decode2 \ + gnutls_certificate_set_known_dh_params \ + gnutls_session_set_verify_cert]) + LIBS="$old_LIBS" +]) + +dnl Check for valgrind. +AC_CHECK_PROG([VALGRIND],[valgrind],[valgrind],[no]) + +dnl If valgrind headers are available (optional). +dnl Since this is only useful for developers, you have to enable +dnl it explicitly using --enable-valgrind. +AC_ARG_ENABLE([valgrind], + [AS_HELP_STRING([--enable-valgrind], + [enable Valgrind extensions (for developers)])], + [enable_valgrind=yes], + [enable_valgrind=no]) +AS_IF([test "x$enable_valgrind" = "xyes"],[ + PKG_CHECK_MODULES([VALGRIND], [valgrind], [ + AC_SUBST([VALGRIND_CFLAGS]) + AC_SUBST([VALGRIND_LIBS]) + AC_DEFINE([HAVE_VALGRIND],[1],[Valgrind headers found at compile time]) + ],[ + AC_MSG_ERROR([--enable-valgrind given, but Valgrind headers are not available]) + ]) +]) + +dnl Bash completion. +PKG_CHECK_MODULES([BASH_COMPLETION], [bash-completion >= 2.0], [ + bash_completion=yes + AC_MSG_CHECKING([for bash-completions directory]) + m4_ifdef([PKG_CHECK_VAR],[ + PKG_CHECK_VAR(bashcompdir, [bash-completion], [completionsdir]) + ]) + AS_IF([test -z "$bashcompdir"], [ + bashcompdir="${sysconfdir}/bash_completion.d" + ]) + AC_MSG_RESULT([$bashcompdir]) + AC_SUBST([bashcompdir]) +],[ + bash_completion=no + AC_MSG_WARN([bash-completion not installed]) +]) +AM_CONDITIONAL([HAVE_BASH_COMPLETION],[test "x$bash_completion" = "xyes"]) + +dnl Check we have enough to run podwrapper. +AC_CHECK_PROG([PERL],[perl],[perl],[no]) +AS_IF([test "x$PERL" != "xno"],[ + AC_MSG_CHECKING([if we have perl Pod::Man and Pod::Simple]) + AS_IF([$PERL -MPod::Man -MPod::Simple -e 1 >&AS_MESSAGE_LOG_FD 2>&1],[ + enable_pod=yes + ],[ + enable_pod=no + ]) + AC_MSG_RESULT([$enable_pod]) +]) +AM_CONDITIONAL([HAVE_POD], + [test "x$PERL" != "xno" && test "x$enable_pod" = "xyes"]) + +dnl Define the path to the podwrapper program. +PODWRAPPER="$PERL $(pwd)/podwrapper.pl" +AC_SUBST([PODWRAPPER]) + +dnl Allow all plugins and filters to be disabled. +AC_ARG_ENABLE([plugins], + [AS_HELP_STRING([--disable-plugins], + [disable all bundled plugins and filters])]) +AM_CONDITIONAL([HAVE_PLUGINS], [test "x$enable_plugins" != "xno"]) + +dnl Check for Perl, for embedding in the perl plugin. +dnl Note that the perl binary is checked above. +AC_ARG_ENABLE([perl], + [AS_HELP_STRING([--disable-perl], [disable Perl embed plugin])], + [], + [enable_perl=yes]) +AS_IF([test "x$PERL" != "xno" && test "x$enable_perl" != "xno"],[ + dnl Check for Perl archlib. + AC_MSG_CHECKING([for Perl embed archlib]) + PERL_ARCHLIB="$($PERL -MConfig -e 'print $Config{archlib}')" + AS_IF([ test -n "$PERL_ARCHLIB" ],[ + AC_MSG_RESULT([$PERL_ARCHLIB]) + ],[ + AC_MSG_NOTICE([Perl embed module disabled]) + enable_perl=no + ]) + + dnl Check for Perl CFLAGS. + AC_MSG_CHECKING([for Perl embed CFLAGS]) + PERL_CFLAGS="$($PERL -MExtUtils::Embed -e 'ccflags')" + AS_IF([ test -n "$PERL_CFLAGS" ],[ + AC_MSG_RESULT([$PERL_CFLAGS]) + ],[ + AC_MSG_NOTICE([Perl embed module disabled]) + enable_perl=no + ]) + + dnl Check for Perl LDOPTS. + AC_MSG_CHECKING([for Perl embed LDOPTS]) + PERL_LDOPTS="$($PERL -MExtUtils::Embed -e 'ldopts')" + AC_MSG_RESULT([$PERL_LDOPTS]) + + dnl XXX Could check these actually work. +]) +AM_CONDITIONAL([HAVE_PERL],[test "x$enable_perl" != "xno" && test "x$PERL" != "xno"]) +AC_SUBST([PERL_ARCHLIB]) +AC_SUBST([PERL_CFLAGS]) +AC_SUBST([PERL_LDOPTS]) + +dnl Check for Python, for embedding in the python plugin. +AC_CHECK_PROG([PYTHON],[python],[python],[no]) +AC_ARG_ENABLE([python], + [AS_HELP_STRING([--disable-python], [disable Python embed plugin])], + [], + [enable_python=yes]) +AS_IF([test "x$PYTHON" != "xno" && test "x$enable_python" != "xno"],[ + AC_MSG_CHECKING([version of $PYTHON]) + PYTHON_VERSION_MAJOR=`$PYTHON -c "import sys; print (sys.version_info@<:@0@:>@)"` + PYTHON_VERSION_MINOR=`$PYTHON -c "import sys; print (sys.version_info@<:@1@:>@)"` + PYTHON_VERSION="$PYTHON_VERSION_MAJOR.$PYTHON_VERSION_MINOR" + AS_IF([test -n "$PYTHON_VERSION"],[ + AC_MSG_RESULT([$PYTHON_VERSION]) + ],[ + AC_MSG_NOTICE([Python embed module disabled]) + enable_python=no + ]) + + dnl Check for Python CFLAGS, libraries. + dnl On Debian: python-X.Y.pc + PKG_CHECK_MODULES([PYTHON], [python-"$PYTHON_VERSION"], [ + AC_SUBST([PYTHON_CFLAGS]) + AC_SUBST([PYTHON_LIBS]) + AC_SUBST([PYTHON_VERSION]) + AC_DEFINE([HAVE_PYTHON],[1],[Python library found at compile time]) + ],[ + dnl On Fedora: python.pc + PKG_CHECK_MODULES([PYTHON], [python], [ + AC_SUBST([PYTHON_CFLAGS]) + AC_SUBST([PYTHON_LIBS]) + AC_SUBST([PYTHON_VERSION]) + AC_DEFINE([HAVE_PYTHON],[1],[Python library found at compile time]) + ],[ + AC_MSG_WARN([python $PYTHON_VERSION not found]) + enable_python=no + ]) + ]) + + dnl Check for various functions needed by the bindings. + old_LIBS="$LIBS" + + PYTHON_BLDLIBRARY=`$PYTHON -c "import distutils.sysconfig; \ + print (distutils.sysconfig.get_config_var('BLDLIBRARY'))"` + AC_CHECK_LIB([c],[PyString_FromString], + [AC_DEFINE([HAVE_PYSTRING_FROMSTRING],1, + [Found PyString_FromString in libpython.])], + [],[$PYTHON_BLDLIBRARY]) + AC_CHECK_LIB([c],[PyString_AsString], + [AC_DEFINE([HAVE_PYSTRING_ASSTRING],1, + [Found PyString_AsString in libpython.])], + [],[$PYTHON_BLDLIBRARY]) + AC_CHECK_LIB([c],[PyUnicode_AsUTF8], + [AC_DEFINE([HAVE_PYUNICODE_ASUTF8],1, + [Found PyUnicode_AsUTF8 in libpython.])], + [],[$PYTHON_BLDLIBRARY]) + + LIBS="$old_LIBS" + +]) +AM_CONDITIONAL([HAVE_PYTHON],[test "x$enable_python" != "xno" && test "x$PYTHON" != "xno"]) +AC_SUBST([PYTHON_CFLAGS]) +AC_SUBST([PYTHON_LIBS]) +AC_SUBST([PYTHON_LDFLAGS]) + +dnl For the OCaml plugin, you can set OCAMLOPTFLAGS before running +dnl ./configure to specify any extra flags you want to pass to +dnl ocamlopt. +AC_SUBST([OCAMLOPTFLAGS]) + +dnl Check for OCaml, for embedding in the ocaml plugin. +AC_PROG_OCAML +AC_ARG_ENABLE([ocaml], + [AS_HELP_STRING([--disable-ocaml], [disable OCaml embed plugin])], + [], + [enable_ocaml=yes]) +AS_IF([test "x$OCAMLOPT" != "xno" && test "x$enable_ocaml" != "xno"],[ + dnl Check OCaml can create a shared library (see README for details). + AC_MSG_CHECKING([if $OCAMLOPT can create a shared library]) + echo 'print_endline "test"' > conftest.ml + AS_IF([$OCAMLOPT $OCAMLOPTFLAGS -output-obj -runtime-variant _pic -o conftest.so conftest.ml >&AS_MESSAGE_LOG_FD 2>&1],[ + AC_MSG_RESULT([yes]) + ocaml_link_shared=yes + ],[ + AC_MSG_RESULT([no]) + ]) + rm -f conftest.ml conftest.cmi conftest.cmx conftest.so conftest.o +]) +AM_CONDITIONAL([HAVE_OCAML],[test "x$OCAMLOPT" != "xno" && + test "x$ocaml_link_shared" = "xyes"]) + +dnl For developing plugins in Rust, optional. +AC_CHECK_PROG([CARGO],[cargo],[cargo],[no]) +AC_ARG_ENABLE([rust], + [AS_HELP_STRING([--disable-rust], [disable Rust plugin])], + [], + [enable_rust=yes]) +AM_CONDITIONAL([HAVE_RUST], + [test "x$CARGO" != "xno" && test "x$enable_rust" != "xno"]) + +dnl Check for Ruby, for embedding in the Ruby plugin. +AC_CHECK_PROG([RUBY],[ruby],[ruby],[no]) +AC_ARG_ENABLE([ruby], + [AS_HELP_STRING([--disable-ruby], [disable Ruby plugin])], + [], + [enable_ruby=yes]) +AS_IF([test "x$RUBY" != "xno" && test "x$enable_ruby" != "xno"],[ + PKG_CHECK_MODULES([RUBY], [ruby], [ + AC_SUBST([RUBY_CFLAGS]) + AC_SUBST([RUBY_LIBS]) + ],[ + AC_MSG_WARN([ruby not found]) + enable_ruby=no + ]) +]) +AM_CONDITIONAL([HAVE_RUBY],[test "x$RUBY" != "xno" && + test "x$enable_ruby" = "xyes"]) + +dnl Check for Tcl, for embedding in the Tcl plugin. +AC_ARG_ENABLE([tcl], + [AS_HELP_STRING([--disable-tcl], [disable Tcl plugin])], + [], + [enable_tcl=yes]) +AS_IF([test "x$enable_tcl" != "xno"],[ + PKG_CHECK_MODULES([TCL], [tcl], [ + AC_SUBST([TCL_CFLAGS]) + AC_SUBST([TCL_LIBS]) + ],[ + AC_MSG_WARN([Tcl not found]) + enable_tcl=no + ]) +]) +AM_CONDITIONAL([HAVE_TCL],[test "x$enable_tcl" = "xyes"]) + +dnl Check for Lua, for embedding in the Lua plugin. +AC_ARG_ENABLE([lua], + [AS_HELP_STRING([--disable-lua], [disable Lua plugin])], + [], + [enable_lua=yes]) +AS_IF([test "x$enable_lua" != "xno"],[ + PKG_CHECK_MODULES([LUA], [lua], [ + AC_SUBST([LUA_CFLAGS]) + AC_SUBST([LUA_LIBS]) + + dnl Lua 5.1 used by RHEL 7 does not have lua_isinteger. + old_LIBS="$LIBS" + LIBS="$LUA_LIBS $LIBS" + AC_CHECK_FUNCS([lua_isinteger]) + LIBS="$old_LIBS" + ],[ + AC_MSG_WARN([Lua not found]) + enable_lua=no + ]) +]) +AM_CONDITIONAL([HAVE_LUA],[test "x$enable_lua" = "xyes"]) + +dnl Check for curl (only if you want to compile the curl plugin). +AC_ARG_WITH([curl], + [AS_HELP_STRING([--without-curl], + [disable curl plugin @<:@default=check@:>@])], + [], + [with_curl=check]) +AS_IF([test "$with_curl" != "no"],[ + PKG_CHECK_MODULES([CURL], [libcurl],[ + AC_SUBST([CURL_CFLAGS]) + AC_SUBST([CURL_LIBS]) + AC_DEFINE([HAVE_CURL],[1],[curl found at compile time.]) + AC_CHECK_DECL([CURLOPT_UNIX_SOCKET_PATH], [ + AC_DEFINE([HAVE_CURLOPT_UNIX_SOCKET_PATH],[1], + [CURLOPT_UNIX_SOCKET_PATH found at compile time.]) + ], [], [#include ]) + ], + [AC_MSG_WARN([curl not found, curl plugin will be disabled])]) +]) +AM_CONDITIONAL([HAVE_CURL],[test "x$CURL_LIBS" != "x"]) + +dnl Check for libssh (only if you want to compile the ssh plugin). +AC_ARG_WITH([ssh], + [AS_HELP_STRING([--without-ssh], + [disable ssh plugin @<:@default=check@:>@])], + [], + [with_ssh=check]) +AS_IF([test "$with_ssh" != "no"],[ + PKG_CHECK_MODULES([SSH], [libssh >= 0.8.0],[ + AC_SUBST([SSH_CFLAGS]) + AC_SUBST([SSH_LIBS]) + ], + [AC_MSG_WARN([libssh not found, ssh plugin will be disabled])]) +]) +AM_CONDITIONAL([HAVE_SSH],[test "x$SSH_LIBS" != "x"]) + +dnl Check for genisoimage or mkisofs +dnl (only if you want to compile the iso plugin). +ISOPROG="no" +AC_ARG_WITH([iso], + [AS_HELP_STRING([--without-iso], + [disable iso plugin @<:@default=check@:>@])], + [], + [with_iso=check]) +AS_IF([test "$with_iso" != "no"],[ + AC_CHECK_PROG([GENISOIMAGE],[genisoimage],[genisoimage],[no]) + AC_CHECK_PROG([MKISOFS],[mkisofs],[mkisofs],[no]) + AS_IF([test "x$GENISOIMAGE" != "xno"],[ + ISOPROG="$GENISOIMAGE" + ],[ + AS_IF([test "x$MKISOFS" != "xno"],[ + ISOPROG="$MKISOFS" + ]) + ]) + AS_IF([test "x$ISOPROG" != "xno"],[ + AC_DEFINE_UNQUOTED([ISOPROG],["$ISOPROG"], + [Program used by iso plugin to make ISOs.]) + ]) +]) +AC_SUBST([ISOPROG]) +AM_CONDITIONAL([HAVE_ISO],[test "x$ISOPROG" != "xno"]) + +dnl Check for libvirt (only if you want to compile the libvirt plugin). +AC_ARG_WITH([libvirt], + [AS_HELP_STRING([--without-libvirt], + [disable libvirt plugin @<:@default=check@:>@])], + [], + [with_libvirt=check]) +AS_IF([test "$with_libvirt" != "no"],[ + PKG_CHECK_MODULES([LIBVIRT], [libvirt],[ + AC_SUBST([LIBVIRT_CFLAGS]) + AC_SUBST([LIBVIRT_LIBS]) + AC_DEFINE([HAVE_LIBVIRT],[1],[libvirt found at compile time.]) + ], + [AC_MSG_WARN([libvirt not found, libvirt plugin will be disabled])]) +]) +AM_CONDITIONAL([HAVE_LIBVIRT],[test "x$LIBVIRT_LIBS" != "x"]) + +dnl Check for zlib (only if you want to compile the gzip plugin). +AC_ARG_WITH([zlib], + [AS_HELP_STRING([--without-zlib], + [disable gzip plugin @<:@default=check@:>@])], + [], + [with_zlib=check]) +AS_IF([test "$with_zlib" != "no"],[ + PKG_CHECK_MODULES([ZLIB], [zlib >= 1.2.3.5],[ + AC_SUBST([ZLIB_CFLAGS]) + AC_SUBST([ZLIB_LIBS]) + AC_DEFINE([HAVE_ZLIB],[1],[zlib found at compile time.]) + ], + [AC_MSG_WARN([zlib >= 1.2.3.5 not found, gzip plugin will be disabled])]) +]) +AM_CONDITIONAL([HAVE_ZLIB],[test "x$ZLIB_LIBS" != "x"]) + +dnl Check for liblzma (only if you want to compile the xz filter). +AC_ARG_WITH([liblzma], + [AS_HELP_STRING([--without-liblzma], + [disable xz filter @<:@default=check@:>@])], + [], + [with_liblzma=check]) +AS_IF([test "$with_liblzma" != "no"],[ + PKG_CHECK_MODULES([LIBLZMA], [liblzma],[ + AC_SUBST([LIBLZMA_CFLAGS]) + AC_SUBST([LIBLZMA_LIBS]) + AC_DEFINE([HAVE_LIBLZMA],[1],[liblzma found at compile time.]) + ], + [AC_MSG_WARN([liblzma not found, xz filter will be disabled])]) +]) +AM_CONDITIONAL([HAVE_LIBLZMA],[test "x$LIBLZMA_LIBS" != "x"]) + +dnl Check for libguestfs (only for the guestfs plugin and the test suite). +AC_ARG_WITH([libguestfs], + [AS_HELP_STRING([--without-libguestfs], + [disable guestfs plugin and tests @<:@default=check@:>@])], + [], + [with_libguestfs=check]) +AS_IF([test "$with_libguestfs" != "no"],[ + PKG_CHECK_MODULES([LIBGUESTFS], [libguestfs],[ + # Although the library was found, we want to make sure it supports nbd + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ +#include + ]], [[ +#ifndef GUESTFS_ADD_DRIVE_OPTS_PROTOCOL +#error unsupported +#endif + ]])], [ + AC_SUBST([LIBGUESTFS_CFLAGS]) + AC_SUBST([LIBGUESTFS_LIBS]) + AC_DEFINE([HAVE_LIBGUESTFS],[1],[libguestfs found at compile time.]) + ],[ + LIBGUESTFS_LIBS= + AC_MSG_WARN([libguestfs too old, guestfs plugin and tests will be disabled])]) + ], + [AC_MSG_WARN([libguestfs not found, guestfs plugin and tests will be disabled])]) +]) +AM_CONDITIONAL([HAVE_LIBGUESTFS],[test "x$LIBGUESTFS_LIBS" != "x"]) + +dnl Check for guestfish (only needed for some of the tests). +AC_CHECK_PROG([GUESTFISH], [guestfish], [guestfish], [no]) +AM_CONDITIONAL([HAVE_GUESTFISH], [test "x$GUESTFISH" != "xno"]) + +dnl Check for ext2fs and com_err, for the ext2 plugin. +AC_ARG_WITH([ext2], + [AS_HELP_STRING([--without-ext2], + [disable ext2 plugin @<:@default=check@:>@])], + [], + [with_ext2=check]) +AS_IF([test "$with_ext2" != "no"], [ + PKG_CHECK_MODULES([EXT2FS], [ext2fs], [ + AC_SUBST([EXT2FS_CFLAGS]) + AC_SUBST([EXT2FS_LIBS]) + AC_DEFINE([HAVE_EXT2FS],[1],[ext2fs found at compile time.]) + ], + [AC_MSG_WARN([ext2fs not found, ext2 plugin will be disabled])]) + PKG_CHECK_MODULES([COM_ERR], [com_err], [ + AC_SUBST([COM_ERR_CFLAGS]) + AC_SUBST([COM_ERR_LIBS]) + AC_DEFINE([HAVE_COM_ERR],[1],[com_err found at compile time.]) + ], + [AC_MSG_WARN([com_err not found, ext2 plugin will be disabled])]) +]) +AM_CONDITIONAL([HAVE_EXT2], + [test "x$EXT2FS_LIBS" != "x" && test "x$COM_ERR_LIBS" != "x"]) + +dnl Check if the user wants to disable VDDK support. +dnl See plugins/vddk/README.VDDK. +AC_ARG_ENABLE([vddk], + [AS_HELP_STRING([--disable-vddk], + [disable VMware VDDK plugin])], + [], + [enable_vddk=yes]) +AM_CONDITIONAL([HAVE_VDDK], [test "x$enable_vddk" = "xyes"]) + +dnl List of plugins and filters. +lang_plugins="\ + lua \ + ocaml \ + perl \ + python \ + ruby \ + rust \ + sh \ + tcl \ + " +non_lang_plugins="\ + curl \ + data \ + example1 \ + example2 \ + example3 \ + example4 \ + ext2 \ + file \ + floppy \ + full \ + guestfs \ + gzip \ + iso \ + libvirt \ + linuxdisk \ + memory \ + nbd \ + null \ + partitioning \ + pattern \ + random \ + split \ + ssh \ + streaming \ + tar \ + vddk \ + zero \ + " +plugins="$(echo $(printf %s\\n $lang_plugins $non_lang_plugins | sort -u))" +filters="\ + blocksize \ + cache \ + cow \ + delay \ + error \ + fua \ + log \ + noextents \ + nozero \ + offset \ + partition \ + rate \ + readahead \ + truncate \ + xz \ + " +AC_SUBST([plugins]) +AC_SUBST([lang_plugins]) +AC_SUBST([non_lang_plugins]) +AC_SUBST([filters]) + +dnl Produce output files. +AC_CONFIG_HEADERS([config.h]) +AC_CONFIG_FILES([podwrapper.pl], + [chmod +x,-w podwrapper.pl]) +AC_CONFIG_FILES([Makefile + bash/Makefile + common/bitmap/Makefile + common/gpt/Makefile + common/include/Makefile + common/protocol/Makefile + common/regions/Makefile + common/sparse/Makefile + common/utils/Makefile + docs/Makefile + include/Makefile + plugins/Makefile + plugins/curl/Makefile + plugins/data/Makefile + plugins/example1/Makefile + plugins/example2/Makefile + plugins/example3/Makefile + plugins/example4/Makefile + plugins/ext2/Makefile + plugins/file/Makefile + plugins/floppy/Makefile + plugins/full/Makefile + plugins/guestfs/Makefile + plugins/gzip/Makefile + plugins/iso/Makefile + plugins/libvirt/Makefile + plugins/linuxdisk/Makefile + plugins/lua/Makefile + plugins/memory/Makefile + plugins/nbd/Makefile + plugins/null/Makefile + plugins/ocaml/Makefile + plugins/partitioning/Makefile + plugins/pattern/Makefile + plugins/perl/Makefile + plugins/python/Makefile + plugins/random/Makefile + plugins/ruby/Makefile + plugins/rust/Cargo.toml + plugins/rust/Makefile + plugins/sh/Makefile + plugins/ssh/Makefile + plugins/split/Makefile + plugins/streaming/Makefile + plugins/tar/Makefile + plugins/tcl/Makefile + plugins/vddk/Makefile + plugins/zero/Makefile + filters/Makefile + filters/blocksize/Makefile + filters/cache/Makefile + filters/cow/Makefile + filters/delay/Makefile + filters/error/Makefile + filters/fua/Makefile + filters/log/Makefile + filters/noextents/Makefile + filters/nozero/Makefile + filters/offset/Makefile + filters/partition/Makefile + filters/rate/Makefile + filters/readahead/Makefile + filters/truncate/Makefile + filters/xz/Makefile + fuzzing/Makefile + server/Makefile + server/nbdkit.pc + tests/functions.sh + tests/Makefile + valgrind/Makefile]) + +AC_OUTPUT + +dnl Summary. +echo +echo +echo "----------------------------------------------------------------------" +echo "Thank you for downloading $PACKAGE_STRING" +echo +echo "This is how we have configured the optional components for you today:" +echo + +feature () +{ + echo -n " $1" + shift + if $@; then echo "yes"; else echo "no"; fi +} + +echo "Optional server features:" +echo +feature "bash-completion ........................ " \ + test "x$HAVE_BASH_COMPLETION_TRUE" = "x" +feature "manual pages ........................... " \ + test "x$HAVE_POD_TRUE" = "x" +feature "SELinux ................................ " \ + test "x$LIBSELINUX_LIBS" != "x" +feature "TLS .................................... " \ + test "x$GNUTLS_LIBS" != "x" + +echo +echo "Optional plugins:" +echo +feature "curl ................................... " \ + test "x$HAVE_CURL_TRUE" = "x" +feature "example4 ............................... " \ + test "x$HAVE_PERL_TRUE" = "x" +feature "ext2 ................................... " \ + test "x$HAVE_EXT2_TRUE" = "x" +feature "floppy ................................. " \ + test "x$HAVE_ICONV_TRUE" = "x" +feature "guestfs ................................ " \ + test "x$HAVE_LIBGUESTFS_TRUE" = "x" +feature "gzip ................................... " \ + test "x$HAVE_ZLIB_TRUE" = "x" +feature "iso .................................... " \ + test "x$HAVE_ISO_TRUE" = "x" +feature "libvirt ................................ " \ + test "x$HAVE_LIBVIRT_TRUE" = "x" +feature "ssh .................................... " \ + test "x$HAVE_SSH_TRUE" = "x" +feature "tar .................................... " \ + test "x$HAVE_PERL_TRUE" = "x" +feature "vddk ................................... " \ + test "x$HAVE_VDDK_TRUE" = "x" + + +echo +echo "Languages:" +echo +feature "lua .................................... " \ + test "x$HAVE_LUA_TRUE" = "x" +feature "ocaml .................................. " \ + test "x$HAVE_OCAML_TRUE" = "x" +feature "perl ................................... " \ + test "x$HAVE_PERL_TRUE" = "x" +feature "python ................................. " \ + test "x$HAVE_PYTHON_TRUE" = "x" +feature "ruby ................................... " \ + test "x$HAVE_RUBY_TRUE" = "x" +feature "rust ................................... " \ + test "x$HAVE_RUST_TRUE" = "x" +feature "tcl .................................... " \ + test "x$HAVE_TCL_TRUE" = "x" + + +echo +echo "Optional filters:" +echo +feature "xz ..................................... " \ + test "x$HAVE_LIBLZMA_TRUE" = "x" + +echo +echo "If any optional component is configured ‘no’ when you expected ‘yes’" +echo "then you should check the preceding messages and README." +echo +echo "Please report bugs back to the mailing list:" +echo "http://www.redhat.com/mailman/listinfo/libguestfs" +echo +echo "Next you should type 'make' to build the package," +echo "then 'make check' to run the tests." diff --git a/depcomp b/depcomp new file mode 100755 index 0000000..65cbf70 --- /dev/null +++ b/depcomp @@ -0,0 +1,791 @@ +#! /bin/sh +# depcomp - compile a program generating dependencies as side-effects + +scriptversion=2018-03-07.03; # UTC + +# Copyright (C) 1999-2018 Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + +# Originally written by Alexandre Oliva . + +case $1 in + '') + echo "$0: No command. Try '$0 --help' for more information." 1>&2 + exit 1; + ;; + -h | --h*) + cat <<\EOF +Usage: depcomp [--help] [--version] PROGRAM [ARGS] + +Run PROGRAMS ARGS to compile a file, generating dependencies +as side-effects. + +Environment variables: + depmode Dependency tracking mode. + source Source file read by 'PROGRAMS ARGS'. + object Object file output by 'PROGRAMS ARGS'. + DEPDIR directory where to store dependencies. + depfile Dependency file to output. + tmpdepfile Temporary file to use when outputting dependencies. + libtool Whether libtool is used (yes/no). + +Report bugs to . +EOF + exit $? + ;; + -v | --v*) + echo "depcomp $scriptversion" + exit $? + ;; +esac + +# Get the directory component of the given path, and save it in the +# global variables '$dir'. Note that this directory component will +# be either empty or ending with a '/' character. This is deliberate. +set_dir_from () +{ + case $1 in + */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;; + *) dir=;; + esac +} + +# Get the suffix-stripped basename of the given path, and save it the +# global variable '$base'. +set_base_from () +{ + base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'` +} + +# If no dependency file was actually created by the compiler invocation, +# we still have to create a dummy depfile, to avoid errors with the +# Makefile "include basename.Plo" scheme. +make_dummy_depfile () +{ + echo "#dummy" > "$depfile" +} + +# Factor out some common post-processing of the generated depfile. +# Requires the auxiliary global variable '$tmpdepfile' to be set. +aix_post_process_depfile () +{ + # If the compiler actually managed to produce a dependency file, + # post-process it. + if test -f "$tmpdepfile"; then + # Each line is of the form 'foo.o: dependency.h'. + # Do two passes, one to just change these to + # $object: dependency.h + # and one to simply output + # dependency.h: + # which is needed to avoid the deleted-header problem. + { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile" + sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile" + } > "$depfile" + rm -f "$tmpdepfile" + else + make_dummy_depfile + fi +} + +# A tabulation character. +tab=' ' +# A newline character. +nl=' +' +# Character ranges might be problematic outside the C locale. +# These definitions help. +upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ +lower=abcdefghijklmnopqrstuvwxyz +digits=0123456789 +alpha=${upper}${lower} + +if test -z "$depmode" || test -z "$source" || test -z "$object"; then + echo "depcomp: Variables source, object and depmode must be set" 1>&2 + exit 1 +fi + +# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po. +depfile=${depfile-`echo "$object" | + sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`} +tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`} + +rm -f "$tmpdepfile" + +# Avoid interferences from the environment. +gccflag= dashmflag= + +# Some modes work just like other modes, but use different flags. We +# parameterize here, but still list the modes in the big case below, +# to make depend.m4 easier to write. Note that we *cannot* use a case +# here, because this file can only contain one case statement. +if test "$depmode" = hp; then + # HP compiler uses -M and no extra arg. + gccflag=-M + depmode=gcc +fi + +if test "$depmode" = dashXmstdout; then + # This is just like dashmstdout with a different argument. + dashmflag=-xM + depmode=dashmstdout +fi + +cygpath_u="cygpath -u -f -" +if test "$depmode" = msvcmsys; then + # This is just like msvisualcpp but w/o cygpath translation. + # Just convert the backslash-escaped backslashes to single forward + # slashes to satisfy depend.m4 + cygpath_u='sed s,\\\\,/,g' + depmode=msvisualcpp +fi + +if test "$depmode" = msvc7msys; then + # This is just like msvc7 but w/o cygpath translation. + # Just convert the backslash-escaped backslashes to single forward + # slashes to satisfy depend.m4 + cygpath_u='sed s,\\\\,/,g' + depmode=msvc7 +fi + +if test "$depmode" = xlc; then + # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information. + gccflag=-qmakedep=gcc,-MF + depmode=gcc +fi + +case "$depmode" in +gcc3) +## gcc 3 implements dependency tracking that does exactly what +## we want. Yay! Note: for some reason libtool 1.4 doesn't like +## it if -MD -MP comes after the -MF stuff. Hmm. +## Unfortunately, FreeBSD c89 acceptance of flags depends upon +## the command line argument order; so add the flags where they +## appear in depend2.am. Note that the slowdown incurred here +## affects only configure: in makefiles, %FASTDEP% shortcuts this. + for arg + do + case $arg in + -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;; + *) set fnord "$@" "$arg" ;; + esac + shift # fnord + shift # $arg + done + "$@" + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + mv "$tmpdepfile" "$depfile" + ;; + +gcc) +## Note that this doesn't just cater to obsosete pre-3.x GCC compilers. +## but also to in-use compilers like IMB xlc/xlC and the HP C compiler. +## (see the conditional assignment to $gccflag above). +## There are various ways to get dependency output from gcc. Here's +## why we pick this rather obscure method: +## - Don't want to use -MD because we'd like the dependencies to end +## up in a subdir. Having to rename by hand is ugly. +## (We might end up doing this anyway to support other compilers.) +## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like +## -MM, not -M (despite what the docs say). Also, it might not be +## supported by the other compilers which use the 'gcc' depmode. +## - Using -M directly means running the compiler twice (even worse +## than renaming). + if test -z "$gccflag"; then + gccflag=-MD, + fi + "$@" -Wp,"$gccflag$tmpdepfile" + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + echo "$object : \\" > "$depfile" + # The second -e expression handles DOS-style file names with drive + # letters. + sed -e 's/^[^:]*: / /' \ + -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile" +## This next piece of magic avoids the "deleted header file" problem. +## The problem is that when a header file which appears in a .P file +## is deleted, the dependency causes make to die (because there is +## typically no way to rebuild the header). We avoid this by adding +## dummy dependencies for each header file. Too bad gcc doesn't do +## this for us directly. +## Some versions of gcc put a space before the ':'. On the theory +## that the space means something, we add a space to the output as +## well. hp depmode also adds that space, but also prefixes the VPATH +## to the object. Take care to not repeat it in the output. +## Some versions of the HPUX 10.20 sed can't process this invocation +## correctly. Breaking it into two sed invocations is a workaround. + tr ' ' "$nl" < "$tmpdepfile" \ + | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \ + | sed -e 's/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +hp) + # This case exists only to let depend.m4 do its work. It works by + # looking at the text of this script. This case will never be run, + # since it is checked for above. + exit 1 + ;; + +sgi) + if test "$libtool" = yes; then + "$@" "-Wp,-MDupdate,$tmpdepfile" + else + "$@" -MDupdate "$tmpdepfile" + fi + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + + if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files + echo "$object : \\" > "$depfile" + # Clip off the initial element (the dependent). Don't try to be + # clever and replace this with sed code, as IRIX sed won't handle + # lines with more than a fixed number of characters (4096 in + # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines; + # the IRIX cc adds comments like '#:fec' to the end of the + # dependency line. + tr ' ' "$nl" < "$tmpdepfile" \ + | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \ + | tr "$nl" ' ' >> "$depfile" + echo >> "$depfile" + # The second pass generates a dummy entry for each header file. + tr ' ' "$nl" < "$tmpdepfile" \ + | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \ + >> "$depfile" + else + make_dummy_depfile + fi + rm -f "$tmpdepfile" + ;; + +xlc) + # This case exists only to let depend.m4 do its work. It works by + # looking at the text of this script. This case will never be run, + # since it is checked for above. + exit 1 + ;; + +aix) + # The C for AIX Compiler uses -M and outputs the dependencies + # in a .u file. In older versions, this file always lives in the + # current directory. Also, the AIX compiler puts '$object:' at the + # start of each line; $object doesn't have directory information. + # Version 6 uses the directory in both cases. + set_dir_from "$object" + set_base_from "$object" + if test "$libtool" = yes; then + tmpdepfile1=$dir$base.u + tmpdepfile2=$base.u + tmpdepfile3=$dir.libs/$base.u + "$@" -Wc,-M + else + tmpdepfile1=$dir$base.u + tmpdepfile2=$dir$base.u + tmpdepfile3=$dir$base.u + "$@" -M + fi + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" + exit $stat + fi + + for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" + do + test -f "$tmpdepfile" && break + done + aix_post_process_depfile + ;; + +tcc) + # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26 + # FIXME: That version still under development at the moment of writing. + # Make that this statement remains true also for stable, released + # versions. + # It will wrap lines (doesn't matter whether long or short) with a + # trailing '\', as in: + # + # foo.o : \ + # foo.c \ + # foo.h \ + # + # It will put a trailing '\' even on the last line, and will use leading + # spaces rather than leading tabs (at least since its commit 0394caf7 + # "Emit spaces for -MD"). + "$@" -MD -MF "$tmpdepfile" + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'. + # We have to change lines of the first kind to '$object: \'. + sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile" + # And for each line of the second kind, we have to emit a 'dep.h:' + # dummy dependency, to avoid the deleted-header problem. + sed -n -e 's|^ *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile" + rm -f "$tmpdepfile" + ;; + +## The order of this option in the case statement is important, since the +## shell code in configure will try each of these formats in the order +## listed in this file. A plain '-MD' option would be understood by many +## compilers, so we must ensure this comes after the gcc and icc options. +pgcc) + # Portland's C compiler understands '-MD'. + # Will always output deps to 'file.d' where file is the root name of the + # source file under compilation, even if file resides in a subdirectory. + # The object file name does not affect the name of the '.d' file. + # pgcc 10.2 will output + # foo.o: sub/foo.c sub/foo.h + # and will wrap long lines using '\' : + # foo.o: sub/foo.c ... \ + # sub/foo.h ... \ + # ... + set_dir_from "$object" + # Use the source, not the object, to determine the base name, since + # that's sadly what pgcc will do too. + set_base_from "$source" + tmpdepfile=$base.d + + # For projects that build the same source file twice into different object + # files, the pgcc approach of using the *source* file root name can cause + # problems in parallel builds. Use a locking strategy to avoid stomping on + # the same $tmpdepfile. + lockdir=$base.d-lock + trap " + echo '$0: caught signal, cleaning up...' >&2 + rmdir '$lockdir' + exit 1 + " 1 2 13 15 + numtries=100 + i=$numtries + while test $i -gt 0; do + # mkdir is a portable test-and-set. + if mkdir "$lockdir" 2>/dev/null; then + # This process acquired the lock. + "$@" -MD + stat=$? + # Release the lock. + rmdir "$lockdir" + break + else + # If the lock is being held by a different process, wait + # until the winning process is done or we timeout. + while test -d "$lockdir" && test $i -gt 0; do + sleep 1 + i=`expr $i - 1` + done + fi + i=`expr $i - 1` + done + trap - 1 2 13 15 + if test $i -le 0; then + echo "$0: failed to acquire lock after $numtries attempts" >&2 + echo "$0: check lockdir '$lockdir'" >&2 + exit 1 + fi + + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + # Each line is of the form `foo.o: dependent.h', + # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'. + # Do two passes, one to just change these to + # `$object: dependent.h' and one to simply `dependent.h:'. + sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile" + # Some versions of the HPUX 10.20 sed can't process this invocation + # correctly. Breaking it into two sed invocations is a workaround. + sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \ + | sed -e 's/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +hp2) + # The "hp" stanza above does not work with aCC (C++) and HP's ia64 + # compilers, which have integrated preprocessors. The correct option + # to use with these is +Maked; it writes dependencies to a file named + # 'foo.d', which lands next to the object file, wherever that + # happens to be. + # Much of this is similar to the tru64 case; see comments there. + set_dir_from "$object" + set_base_from "$object" + if test "$libtool" = yes; then + tmpdepfile1=$dir$base.d + tmpdepfile2=$dir.libs/$base.d + "$@" -Wc,+Maked + else + tmpdepfile1=$dir$base.d + tmpdepfile2=$dir$base.d + "$@" +Maked + fi + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile1" "$tmpdepfile2" + exit $stat + fi + + for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" + do + test -f "$tmpdepfile" && break + done + if test -f "$tmpdepfile"; then + sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile" + # Add 'dependent.h:' lines. + sed -ne '2,${ + s/^ *// + s/ \\*$// + s/$/:/ + p + }' "$tmpdepfile" >> "$depfile" + else + make_dummy_depfile + fi + rm -f "$tmpdepfile" "$tmpdepfile2" + ;; + +tru64) + # The Tru64 compiler uses -MD to generate dependencies as a side + # effect. 'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'. + # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put + # dependencies in 'foo.d' instead, so we check for that too. + # Subdirectories are respected. + set_dir_from "$object" + set_base_from "$object" + + if test "$libtool" = yes; then + # Libtool generates 2 separate objects for the 2 libraries. These + # two compilations output dependencies in $dir.libs/$base.o.d and + # in $dir$base.o.d. We have to check for both files, because + # one of the two compilations can be disabled. We should prefer + # $dir$base.o.d over $dir.libs/$base.o.d because the latter is + # automatically cleaned when .libs/ is deleted, while ignoring + # the former would cause a distcleancheck panic. + tmpdepfile1=$dir$base.o.d # libtool 1.5 + tmpdepfile2=$dir.libs/$base.o.d # Likewise. + tmpdepfile3=$dir.libs/$base.d # Compaq CCC V6.2-504 + "$@" -Wc,-MD + else + tmpdepfile1=$dir$base.d + tmpdepfile2=$dir$base.d + tmpdepfile3=$dir$base.d + "$@" -MD + fi + + stat=$? + if test $stat -ne 0; then + rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" + exit $stat + fi + + for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" + do + test -f "$tmpdepfile" && break + done + # Same post-processing that is required for AIX mode. + aix_post_process_depfile + ;; + +msvc7) + if test "$libtool" = yes; then + showIncludes=-Wc,-showIncludes + else + showIncludes=-showIncludes + fi + "$@" $showIncludes > "$tmpdepfile" + stat=$? + grep -v '^Note: including file: ' "$tmpdepfile" + if test $stat -ne 0; then + rm -f "$tmpdepfile" + exit $stat + fi + rm -f "$depfile" + echo "$object : \\" > "$depfile" + # The first sed program below extracts the file names and escapes + # backslashes for cygpath. The second sed program outputs the file + # name when reading, but also accumulates all include files in the + # hold buffer in order to output them again at the end. This only + # works with sed implementations that can handle large buffers. + sed < "$tmpdepfile" -n ' +/^Note: including file: *\(.*\)/ { + s//\1/ + s/\\/\\\\/g + p +}' | $cygpath_u | sort -u | sed -n ' +s/ /\\ /g +s/\(.*\)/'"$tab"'\1 \\/p +s/.\(.*\) \\/\1:/ +H +$ { + s/.*/'"$tab"'/ + G + p +}' >> "$depfile" + echo >> "$depfile" # make sure the fragment doesn't end with a backslash + rm -f "$tmpdepfile" + ;; + +msvc7msys) + # This case exists only to let depend.m4 do its work. It works by + # looking at the text of this script. This case will never be run, + # since it is checked for above. + exit 1 + ;; + +#nosideeffect) + # This comment above is used by automake to tell side-effect + # dependency tracking mechanisms from slower ones. + +dashmstdout) + # Important note: in order to support this mode, a compiler *must* + # always write the preprocessed file to stdout, regardless of -o. + "$@" || exit $? + + # Remove the call to Libtool. + if test "$libtool" = yes; then + while test "X$1" != 'X--mode=compile'; do + shift + done + shift + fi + + # Remove '-o $object'. + IFS=" " + for arg + do + case $arg in + -o) + shift + ;; + $object) + shift + ;; + *) + set fnord "$@" "$arg" + shift # fnord + shift # $arg + ;; + esac + done + + test -z "$dashmflag" && dashmflag=-M + # Require at least two characters before searching for ':' + # in the target name. This is to cope with DOS-style filenames: + # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise. + "$@" $dashmflag | + sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile" + rm -f "$depfile" + cat < "$tmpdepfile" > "$depfile" + # Some versions of the HPUX 10.20 sed can't process this sed invocation + # correctly. Breaking it into two sed invocations is a workaround. + tr ' ' "$nl" < "$tmpdepfile" \ + | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \ + | sed -e 's/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +dashXmstdout) + # This case only exists to satisfy depend.m4. It is never actually + # run, as this mode is specially recognized in the preamble. + exit 1 + ;; + +makedepend) + "$@" || exit $? + # Remove any Libtool call + if test "$libtool" = yes; then + while test "X$1" != 'X--mode=compile'; do + shift + done + shift + fi + # X makedepend + shift + cleared=no eat=no + for arg + do + case $cleared in + no) + set ""; shift + cleared=yes ;; + esac + if test $eat = yes; then + eat=no + continue + fi + case "$arg" in + -D*|-I*) + set fnord "$@" "$arg"; shift ;; + # Strip any option that makedepend may not understand. Remove + # the object too, otherwise makedepend will parse it as a source file. + -arch) + eat=yes ;; + -*|$object) + ;; + *) + set fnord "$@" "$arg"; shift ;; + esac + done + obj_suffix=`echo "$object" | sed 's/^.*\././'` + touch "$tmpdepfile" + ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@" + rm -f "$depfile" + # makedepend may prepend the VPATH from the source file name to the object. + # No need to regex-escape $object, excess matching of '.' is harmless. + sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile" + # Some versions of the HPUX 10.20 sed can't process the last invocation + # correctly. Breaking it into two sed invocations is a workaround. + sed '1,2d' "$tmpdepfile" \ + | tr ' ' "$nl" \ + | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \ + | sed -e 's/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" "$tmpdepfile".bak + ;; + +cpp) + # Important note: in order to support this mode, a compiler *must* + # always write the preprocessed file to stdout. + "$@" || exit $? + + # Remove the call to Libtool. + if test "$libtool" = yes; then + while test "X$1" != 'X--mode=compile'; do + shift + done + shift + fi + + # Remove '-o $object'. + IFS=" " + for arg + do + case $arg in + -o) + shift + ;; + $object) + shift + ;; + *) + set fnord "$@" "$arg" + shift # fnord + shift # $arg + ;; + esac + done + + "$@" -E \ + | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \ + -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \ + | sed '$ s: \\$::' > "$tmpdepfile" + rm -f "$depfile" + echo "$object : \\" > "$depfile" + cat < "$tmpdepfile" >> "$depfile" + sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +msvisualcpp) + # Important note: in order to support this mode, a compiler *must* + # always write the preprocessed file to stdout. + "$@" || exit $? + + # Remove the call to Libtool. + if test "$libtool" = yes; then + while test "X$1" != 'X--mode=compile'; do + shift + done + shift + fi + + IFS=" " + for arg + do + case "$arg" in + -o) + shift + ;; + $object) + shift + ;; + "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI") + set fnord "$@" + shift + shift + ;; + *) + set fnord "$@" "$arg" + shift + shift + ;; + esac + done + "$@" -E 2>/dev/null | + sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile" + rm -f "$depfile" + echo "$object : \\" > "$depfile" + sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile" + echo "$tab" >> "$depfile" + sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile" + rm -f "$tmpdepfile" + ;; + +msvcmsys) + # This case exists only to let depend.m4 do its work. It works by + # looking at the text of this script. This case will never be run, + # since it is checked for above. + exit 1 + ;; + +none) + exec "$@" + ;; + +*) + echo "Unknown depmode $depmode" 1>&2 + exit 1 + ;; +esac + +exit 0 + +# Local Variables: +# mode: shell-script +# sh-indentation: 2 +# eval: (add-hook 'before-save-hook 'time-stamp) +# time-stamp-start: "scriptversion=" +# time-stamp-format: "%:y-%02m-%02d.%02H" +# time-stamp-time-zone: "UTC0" +# time-stamp-end: "; # UTC" +# End: diff --git a/docs/Makefile.am b/docs/Makefile.am new file mode 100644 index 0000000..7e6c1fd --- /dev/null +++ b/docs/Makefile.am @@ -0,0 +1,136 @@ +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = \ + make-links.sh \ + nbdkit.pod \ + nbdkit-captive.pod \ + nbdkit-loop.pod \ + nbdkit-probing.pod \ + nbdkit-protocol.pod \ + nbdkit-service.pod \ + nbdkit-tls.pod \ + nbdkit-plugin.pod \ + nbdkit-filter.pod \ + synopsis.txt + +if HAVE_POD + +man_MANS = \ + nbdkit.1 \ + nbdkit-captive.1 \ + nbdkit-loop.1 \ + nbdkit-probing.1 \ + nbdkit-protocol.1 \ + nbdkit-service.1 \ + nbdkit-tls.1 \ + nbdkit-plugin.3 \ + nbdkit-filter.3 +CLEANFILES += $(man_MANS) + +nbdkit.1: nbdkit.pod plugin-links.pod lang-plugin-links.pod filter-links.pod \ + synopsis.txt + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + --insert plugin-links.pod:__PLUGIN_LINKS__ \ + --insert lang-plugin-links.pod:__LANG_PLUGIN_LINKS__ \ + --insert filter-links.pod:__FILTER_LINKS__ \ + --verbatim $(srcdir)/synopsis.txt:__SYNOPSIS__ \ + $< + +nbdkit-captive.1: nbdkit-captive.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +nbdkit-loop.1: nbdkit-loop.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +nbdkit-probing.1: nbdkit-probing.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +nbdkit-protocol.1: nbdkit-protocol.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +nbdkit-service.1: nbdkit-service.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +nbdkit-tls.1: nbdkit-tls.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +nbdkit-plugin.3: nbdkit-plugin.pod plugin-links.pod lang-plugin-links.pod + $(PODWRAPPER) --section=3 --man $@ \ + --html $(top_builddir)/html/$@.html \ + --insert plugin-links.pod:__PLUGIN_LINKS__ \ + --insert lang-plugin-links.pod:__LANG_PLUGIN_LINKS__ \ + $< + +nbdkit-filter.3: nbdkit-filter.pod filter-links.pod + $(PODWRAPPER) --section=3 --man $@ \ + --html $(top_builddir)/html/$@.html \ + --insert filter-links.pod:__FILTER_LINKS__ \ + $< + +endif HAVE_POD + +# All plugins. +plugin-links.pod: $(top_srcdir)/configure.ac + rm -f $@ $@-t + $(srcdir)/make-links.sh plugin 1 $(non_lang_plugins) > $@-t + echo \; >> $@-t + $(srcdir)/make-links.sh plugin 3 $(lang_plugins) >> $@-t + mv $@-t $@ + +# Only language plugins (in section 3). +lang-plugin-links.pod: $(top_srcdir)/configure.ac + rm -f $@ $@-t + $(srcdir)/make-links.sh plugin 3 $(lang_plugins) >> $@-t + mv $@-t $@ + +# All filters. +filter-links.pod: $(top_srcdir)/configure.ac + rm -f $@ $@-t + $(srcdir)/make-links.sh filter 1 $(filters) > $@-t + mv $@-t $@ + +DISTCLEANFILES = plugin-links.pod lang-plugin-links.pod filter-links.pod diff --git a/docs/Makefile.in b/docs/Makefile.in new file mode 100644 index 0000000..4444a7e --- /dev/null +++ b/docs/Makefile.in @@ -0,0 +1,810 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +VPATH = @srcdir@ +am__is_gnu_make = { \ + if test -z '$(MAKELEVEL)'; then \ + false; \ + elif test -n '$(MAKE_HOST)'; then \ + true; \ + elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \ + true; \ + else \ + false; \ + fi; \ +} +am__make_running_with_option = \ + case $${target_option-} in \ + ?) ;; \ + *) echo "am__make_running_with_option: internal error: invalid" \ + "target option '$${target_option-}' specified" >&2; \ + exit 1;; \ + esac; \ + 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installdirs maintainer-clean \ + maintainer-clean-generic mostlyclean mostlyclean-generic \ + mostlyclean-libtool pdf pdf-am ps ps-am tags-am uninstall \ + uninstall-am uninstall-man uninstall-man1 uninstall-man3 + +.PRECIOUS: Makefile + + +@HAVE_POD_TRUE@nbdkit.1: nbdkit.pod plugin-links.pod lang-plugin-links.pod filter-links.pod \ +@HAVE_POD_TRUE@ synopsis.txt +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ --insert plugin-links.pod:__PLUGIN_LINKS__ \ +@HAVE_POD_TRUE@ --insert lang-plugin-links.pod:__LANG_PLUGIN_LINKS__ \ +@HAVE_POD_TRUE@ --insert filter-links.pod:__FILTER_LINKS__ \ +@HAVE_POD_TRUE@ --verbatim $(srcdir)/synopsis.txt:__SYNOPSIS__ \ +@HAVE_POD_TRUE@ $< + +@HAVE_POD_TRUE@nbdkit-captive.1: nbdkit-captive.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +@HAVE_POD_TRUE@nbdkit-loop.1: nbdkit-loop.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +@HAVE_POD_TRUE@nbdkit-probing.1: nbdkit-probing.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +@HAVE_POD_TRUE@nbdkit-protocol.1: nbdkit-protocol.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +@HAVE_POD_TRUE@nbdkit-service.1: nbdkit-service.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +@HAVE_POD_TRUE@nbdkit-tls.1: nbdkit-tls.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +@HAVE_POD_TRUE@nbdkit-plugin.3: nbdkit-plugin.pod plugin-links.pod lang-plugin-links.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=3 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ --insert plugin-links.pod:__PLUGIN_LINKS__ \ +@HAVE_POD_TRUE@ --insert lang-plugin-links.pod:__LANG_PLUGIN_LINKS__ \ +@HAVE_POD_TRUE@ $< + +@HAVE_POD_TRUE@nbdkit-filter.3: nbdkit-filter.pod filter-links.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=3 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ --insert filter-links.pod:__FILTER_LINKS__ \ +@HAVE_POD_TRUE@ $< + +# All plugins. +plugin-links.pod: $(top_srcdir)/configure.ac + rm -f $@ $@-t + $(srcdir)/make-links.sh plugin 1 $(non_lang_plugins) > $@-t + echo \; >> $@-t + $(srcdir)/make-links.sh plugin 3 $(lang_plugins) >> $@-t + mv $@-t $@ + +# Only language plugins (in section 3). +lang-plugin-links.pod: $(top_srcdir)/configure.ac + rm -f $@ $@-t + $(srcdir)/make-links.sh plugin 3 $(lang_plugins) >> $@-t + mv $@-t $@ + +# All filters. +filter-links.pod: $(top_srcdir)/configure.ac + rm -f $@ $@-t + $(srcdir)/make-links.sh filter 1 $(filters) > $@-t + mv $@-t $@ + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/docs/make-links.sh b/docs/make-links.sh new file mode 100755 index 0000000..41e5e16 --- /dev/null +++ b/docs/make-links.sh @@ -0,0 +1,46 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Turn a list of plugins or filters into a comma-separated +# list of POD links. +# eg: +# ./make-links.sh plugin 1 foo bar +# --> L, L + +type="$1" +section="$2" +shift 2 +for (( i = 1; i <= $#; ++i )); do + echo -n "L" + if [ "$i" -lt "$#" ]; then echo -n , ; fi + echo +done diff --git a/docs/nbdkit-captive.pod b/docs/nbdkit-captive.pod new file mode 100644 index 0000000..6f69cca --- /dev/null +++ b/docs/nbdkit-captive.pod @@ -0,0 +1,140 @@ +=head1 NAME + +nbdkit-captive - run nbdkit under another process and have it +reliably cleaned up + +=head1 SYNOPSIS + + nbdkit PLUGIN [...] --run "CMD ARGS ..." + + nbdkit --exit-with-parent PLUGIN [...] + +=head1 DESCRIPTION + +You can run nbdkit under another process and have nbdkit reliably +clean up. There are two techniques depending on whether you want +nbdkit to start the other process (L), or if you want +the other process to start nbdkit (L). + +=head1 CAPTIVE NBDKIT + +You can run nbdkit as a "captive process", using the I<--run> option. +This means that nbdkit runs as long as (for example) L or +L is running. When those exit, nbdkit is killed. + +Some examples should make this clear. + +To run nbdkit captive under qemu: + + nbdkit file disk.img --run 'qemu -drive file=$nbd,if=virtio' + +On the qemu command line, C<$nbd> is substituted automatically with +the right NBD path so it can connect to nbdkit. When qemu exits, +nbdkit is killed and cleaned up automatically. + +Running nbdkit captive under guestfish: + + nbdkit file disk.img --run 'guestfish --format=raw -a $nbd -i' + +When guestfish exits, nbdkit is killed. + +The following shell variables are available in the I<--run> argument: + +=over 4 + +=item C<$nbd> + +A URL that refers to the nbdkit port or socket. + +Note there is some magic here, since qemu and guestfish URLs have a +different format, so nbdkit tries to guess which you are running. If +the magic doesn't work, try using the variables below instead. + +=item C<$port> + +If E "", the port number that nbdkit is listening on. + +=item C<$unixsocket> + +If E "", the Unix domain socket that nbdkit is listening on. + +=back + +I<--run> implies I<--foreground>. It is not possible, and probably +not desirable, to have nbdkit fork into the background when using +I<--run>. + +Even when running captive, nbdkit still listens on the regular TCP/IP +port, unless you specify the I<-p>/I<-U> options. If you want a truly +private captive nbdkit, then you should create a private random +Unix socket, like this: + + nbdkit -U - plugin [args] --run '...' + +=head2 Copying data in and out of plugins with captive nbdkit + +Captive nbdkit + L can be used to copy data into and out +of nbdkit plugins. For example L contains +an embedded disk image. To copy it out: + + nbdkit -U - example1 --run 'qemu-img convert $nbd disk.img' + +If plugin requests have a high overhead (for example making HTTP +requests to a remote server), adding L may +help performance: + + nbdkit -U - --filter=readahead curl https://example.com/disk.img \ + --run 'qemu-img convert $nbd disk.img' + +To overwrite a file inside an uncompressed tar file (the file being +overwritten must be the same size), use L like +this: + + nbdkit -U - tar tar=data.tar file=disk.img \ + --run 'qemu-img convert -n disk.img $nbd' + +=head1 EXIT WITH PARENT + +The I<--exit-with-parent> option is almost the opposite of +L described in the previous section. + +Running nbdkit with this option, for example from a script: + + nbdkit --exit-with-parent plugin ... & + +means that nbdkit will exit automatically if the parent program exits +for any reason. This can be used to avoid complicated cleanups or +orphaned nbdkit processes. + +I<--exit-with-parent> is incompatible with forking into the background +(because when we fork into the background we lose track of the parent +process). Therefore I<-f> / I<--foreground> is implied. + +This is currently implemented using a non-POSIX feature available in +S and S, so it won't work on other +operating systems (patches welcome to make it work). + +If the parent application is multithreaded, then (in the Linux +implementation) if the parent I exits, that will cause nbdkit +to exit. Thus in multithreaded applications you usually want to run +C only from the main thread (unless you +actually want nbdkit to exit with the thread, but that may not work +reliably on all operating systems). + +=head1 SEE ALSO + +L, +L (on Linux), +L (on FreeBSD). + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +Pino Toscano + +=head1 COPYRIGHT + +Copyright (C) 2013-2018 Red Hat Inc. diff --git a/docs/nbdkit-filter.pod b/docs/nbdkit-filter.pod new file mode 100644 index 0000000..9e51c68 --- /dev/null +++ b/docs/nbdkit-filter.pod @@ -0,0 +1,710 @@ +=head1 NAME + +nbdkit-filter - how to write nbdkit filters + +=head1 SYNOPSIS + + #include + + #define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + + static int + myfilter_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) + { + if (strcmp (key, "myparameter") == 0) { + // ... + return 0; + } + else { + // pass through to next filter or plugin + return next (nxdata, key, value); + } + } + + static struct nbdkit_filter filter = { + .name = "filter", + .config = myfilter_config, + /* etc */ + }; + + NBDKIT_REGISTER_FILTER(filter) + +When this has been compiled to a shared library, do: + + nbdkit [--args ...] --filter=./myfilter.so plugin [key=value ...] + +When debugging, use the I<-fv> options: + + nbdkit -fv --filter=./myfilter.so plugin [key=value ...] + +=head1 DESCRIPTION + +One or more nbdkit filters can be placed in front of an nbdkit plugin +to modify the behaviour of the plugin. This manual page describes how +to create an nbdkit filter. + +Filters can be used for example to limit requests to an offset/limit, +add copy-on-write support, or inject delays or errors (for testing). + +Different filters can be stacked: + + NBD ┌─────────┐ ┌─────────┐ ┌────────┐ + client ───▶│ filter1 │───▶│ filter2 │── ─ ─ ──▶│ plugin │ + request └─────────┘ └─────────┘ └────────┘ + +Each filter intercepts plugin functions (see L) and +can call the next filter or plugin in the chain, modifying parameters, +calling before the filter function, in the middle or after. Filters +may even short-cut the chain. As an example, to process its own +parameters the filter can intercept the C<.config> method: + + static int + myfilter_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) + { + if (strcmp (key, "myparameter") == 0) { + // ... + // here you would handle this key, value + // ... + return 0; + } + else { + // pass through to next filter or plugin + return next (nxdata, key, value); + } + } + + static struct nbdkit_filter filter = { + // ... + .config = myfilter_config, + // ... + }; + +The call to C calls the C<.config> method of the +next filter or plugin in the chain. In the example above any +instances of C on the command line would not be seen +by the plugin. + +To see example filters: +L + +Filters must be written in C. + +Unlike plugins, where we provide a stable ABI guarantee that permits +operation across version differences, filters can only be run with the +same version of nbdkit that they were compiled with. The reason for +this is two-fold: the filter API includes access to struct +nbdkit_next_ops that is likely to change if new callbacks are added +(old nbdkit cannot safely run new filters that access new methods); +and if we added new methods then an old filter would not see them and +so they would be passed unmodified through the filter, and in some +cases that leads to data corruption (new nbdkit cannot safely run old +filters unaware of new methods). Therefore, unlike plugins, you +should not expect to distribute filters separately from nbdkit. + +=head1 C<#include Enbdkit-filter.hE> + +All filters should start by including this header file. + +=head1 C<#define THREAD_MODEL> + +All filters must define a thread model. See +L for a discussion of thread models. + +The final thread model is the smallest (ie. most serialized) out of +all the filters and the plugin. Filters cannot alter the thread model +to make it larger (more parallel). + +If possible filters should be be written to handle fully parallel +requests (C, even multiple requests +issued in parallel on the same connection). This ensures that they +don't slow down other filters or plugins. + +=head1 C + +All filters must define and register one C, +which contains the name of the filter and pointers to plugin methods +that the filter wants to intercept. + + static struct nbdkit_filter filter = { + .name = "filter", + .longname = "My Filter", + .description = "This is my great filter for nbdkit", + .config = myfilter_config, + /* etc */ + }; + + NBDKIT_REGISTER_FILTER(filter) + +The C<.name> field is the name of the filter. This is the only field +which is required. + +=head1 NEXT PLUGIN + +F defines three function types +(C, C, +C) and a structure called C. +These abstract the next plugin or filter in the chain. There is also +an opaque pointer C which must be passed along when calling +these functions. + +The filter’s C<.config>, C<.config_complete> and C<.open> methods may +only call the next C<.config>, C<.config_complete> and C<.open> method +in the chain (optionally for C<.config>). + +The filter’s C<.close> method is called when an old connection closed, +and this has no C parameter because it cannot be +short-circuited. + +The filter’s other methods like C<.prepare>, C<.get_size>, C<.pread> +etc ― always called in the context of a connection ― are passed a +pointer to C which contains a comparable set +of accessors to plugin methods that can be called during a connection. +It is possible for a filter to issue (for example) extra read calls in +response to a single C<.pwrite> call. Note that the semantics of the +functions in C are slightly different from +what a plugin implements: for example, when a plugin's C<.pread> +returns -1 on error, the error value to advertise to the client is +implicit (via the plugin calling C or setting +C), whereas Cpread> exposes this via an explicit +parameter, allowing a filter to learn or modify this error if desired. + +You can modify parameters when you call the C function. However +be careful when modifying strings because for some methods +(eg. C<.config>) the plugin may save the string pointer that you pass +along. So you may have to ensure that the string is not freed for the +lifetime of the server. + +Note that if your filter registers a callback but in that callback it +doesn't call the C function then the corresponding method in the +plugin will never be called. In particular, your C<.open> method, if +you have one, B call the C<.next> method. + +=head1 CALLBACKS + +C has some static fields describing the filter +and optional callback functions which can be used to intercept plugin +methods. + +=head2 C<.name> + + const char *name; + +This field (a string) is required, and B contain only ASCII +alphanumeric characters and be unique amongst all filters. + +=head2 C<.version> + + const char *version; + +Filters may optionally set a version string which is displayed in help +and debugging output. + +=head2 C<.longname> + + const char *longname; + +An optional free text name of the filter. This field is used in error +messages. + +=head2 C<.description> + + const char *description; + +An optional multi-line description of the filter. + +=head2 C<.load> + + void load (void); + +This is called once just after the filter is loaded into memory. You +can use this to perform any global initialization needed by the +filter. + +=head2 C<.unload> + + void unload (void); + +This may be called once just before the filter is unloaded from +memory. Note that it's not guaranteed that C<.unload> will always be +called (eg. the server might be killed or segfault), so you should try +to make the filter as robust as possible by not requiring cleanup. +See also L. + +=head2 C<.config> + + int (*config) (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value); + +This intercepts the plugin C<.config> method and can be used by the +filter to parse its own command line parameters. You should try to +make sure that command line parameter keys that the filter uses do not +conflict with ones that could be used by a plugin. + +If there is an error, C<.config> should call C with an +error message and return C<-1>. + +=head2 C<.config_complete> + + int (*config_complete) (nbdkit_next_config_complete *next, void *nxdata); + +This intercepts the plugin C<.config_complete> method and can be used +to ensure that all parameters needed by the filter were supplied on +the command line. + +If there is an error, C<.config_complete> should call C +with an error message and return C<-1>. + +=head2 C<.config_help> + + const char *config_help; + +This optional multi-line help message should summarize any +C parameters that it takes. It does I need to repeat +what already appears in C<.description>. + +If the filter doesn't take any config parameters you should probably +omit this. + +=head2 C<.open> + + void * (*open) (nbdkit_next_open *next, void *nxdata, + int readonly); + +This is called when a new client connection is opened and can be used +to allocate any per-connection data structures needed by the filter. +The handle (which is not the same as the plugin handle) is passed back +to other filter callbacks and could be freed in the C<.close> +callback. + +Note that the handle is completely opaque to nbdkit, but it must not +be NULL. If you don't need to use a handle, return +C which is a static non-NULL pointer. + +If there is an error, C<.open> should call C with an +error message and return C. + +=head2 C<.close> + + void (*close) (void *handle); + +This is called when the client closes the connection. It should clean +up any per-connection resources used by the filter. + +=head2 C<.prepare> + +=head2 C<.finalize> + + int (*prepare) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + int (*finalize) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + +These two methods can be used to perform any necessary operations just +after opening the connection (C<.prepare>) or just before closing the +connection (C<.finalize>). + +For example if you need to scan the underlying disk to check for a +partition table, you could do it in your C<.prepare> method (calling +the plugin's C<.pread> method via C). Or if you need to +cleanly update superblock data in the image on close you can do it in +your C<.finalize> method (calling the plugin's C<.pwrite> method). +Doing these things in the filter's C<.open> or C<.close> method is not +possible. + +There is no Cprepare> or Cfinalize>. +Unlike other filter methods, prepare and finalize are not chained +through the C structure. Instead the core nbdkit server +calls the prepare and finalize methods of all filters. Prepare +methods are called starting with the filter closest to the plugin and +proceeding outwards. Finalize methods are called in the reverse order +of prepare methods. + +If there is an error, both callbacks should call C with +an error message and return C<-1>. + +=head2 C<.get_size> + + int64_t (*get_size) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + +This intercepts the plugin C<.get_size> method and can be used to read +or modify the apparent size of the block device that the NBD client +will see. + +The returned size must be E 0. If there is an error, C<.get_size> +should call C with an error message and return C<-1>. +If this function is called more than once for the same connection, it +should return the same value; similarly, the filter may cache +Cget_size> for a given connection rather than repeating +calls. + +=head2 C<.can_write> + +=head2 C<.can_flush> + +=head2 C<.is_rotational> + +=head2 C<.can_trim> + +=head2 C<.can_zero> + +=head2 C<.can_extents> + +=head2 C<.can_fua> + +=head2 C<.can_multi_conn> + + int (*can_write) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + int (*can_flush) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + int (*is_rotational) (struct nbdkit_next_ops *next_ops, + void *nxdata, + void *handle); + int (*can_trim) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + int (*can_zero) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + int (*can_extents) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + int (*can_fua) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + int (*can_multi_conn) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + +These intercept the corresponding plugin methods, and control feature +bits advertised to the client. + +Of note, the C<.can_zero> callback in the filter controls whether the +server advertises zero support to the client, which is slightly +different semantics than the plugin; that is, +Ccan_zero> always returns true for a plugin, even when +the plugin's own C<.can_zero> callback returned false, because nbdkit +implements a fallback to C<.pwrite> at the plugin layer. + +Remember that most of the feature check functions return merely a +boolean success value, while C<.can_fua> has three success values. +The difference between values may affect choices made in the filter: +when splitting a write request that requested FUA from the client, if +Ccan_fua> returns C, then the filter +should pass the FUA flag on to each sub-request; while if it is known +that FUA is emulated by a flush because of a return of +C, it is more efficient to only flush once after +all sub-requests have completed (often by passing C +on to only the final sub-request, or by dropping the flag and ending +with a direct call to Cflush>). + +If there is an error, the callback should call C with an +error message and return C<-1>. If these functions are called more +than once for the same connection, they should return the same value; +similarly, the filter may cache the results of each counterpart in +C for a given connection rather than repeating calls. + +=head2 C<.pread> + + int (*pread) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err); + +This intercepts the plugin C<.pread> method and can be used to read or +modify data read by the plugin. + +The parameter C exists in case of future NBD protocol +extensions; at this time, it will be 0 on input, and the filter should +not pass any flags to Cpread>. + +If there is an error (including a short read which couldn't be +recovered from), C<.pread> should call C with an error +message B return -1 with C set to the positive errno value +to return to the client. + +=head2 C<.pwrite> + + int (*pwrite) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + const void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err); + +This intercepts the plugin C<.pwrite> method and can be used to modify +data written by the plugin. + +This function will not be called if C<.can_write> returned false; in +turn, the filter should not call Cpwrite> if +Ccan_write> did not return true. + +The parameter C may include C on input based +on the result of C<.can_fua>. In turn, the filter should only pass +C on to Cpwrite> if +Ccan_fua> returned a positive value. + +If there is an error (including a short write which couldn't be +recovered from), C<.pwrite> should call C with an error +message B return -1 with C set to the positive errno value +to return to the client. + +=head2 C<.flush> + + int (*flush) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t flags, int *err); + +This intercepts the plugin C<.flush> method and can be used to modify +flush requests. + +This function will not be called if C<.can_flush> returned false; in +turn, the filter should not call Cflush> if +Ccan_flush> did not return true. + +The parameter C exists in case of future NBD protocol +extensions; at this time, it will be 0 on input, and the filter should +not pass any flags to Cflush>. + +If there is an error, C<.flush> should call C with an +error message B return -1 with C set to the positive errno +value to return to the client. + +=head2 C<.trim> + + int (*trim) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, int *err); + +This intercepts the plugin C<.trim> method and can be used to modify +trim requests. + +This function will not be called if C<.can_trim> returned false; in +turn, the filter should not call Ctrim> if +Ccan_trim> did not return true. + +The parameter C may include C on input based +on the result of C<.can_fua>. In turn, the filter should only pass +C on to Ctrim> if +Ccan_fua> returned a positive value. + +If there is an error, C<.trim> should call C with an +error message B return -1 with C set to the positive errno +value to return to the client. + +=head2 C<.zero> + + int (*zero) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, uint32_t flags, + int *err); + +This intercepts the plugin C<.zero> method and can be used to modify +zero requests. + +This function will not be called if C<.can_zero> returned false; in +turn, the filter should not call Czero> if +Ccan_zero> did not return true. + +On input, the parameter C may include C +unconditionally, and C based on the result of +C<.can_fua>. In turn, the filter may pass C +unconditionally, but should only pass C on to +Czero> if Ccan_fua> returned a positive +value. + +Note that unlike the plugin C<.zero> which is permitted to fail with +C to force a fallback to C<.pwrite>, the function +Czero> will never fail with C set to C +because the fallback has already taken place. + +If there is an error, C<.zero> should call C with an +error message B return -1 with C set to the positive errno +value to return to the client. The filter should never fail with +C (while plugins have automatic fallback to C<.pwrite>, +filters do not). + +=head2 C<.extents> + + int (*extents) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, uint32_t flags, + struct nbdkit_extents *extents, + int *err); + +This intercepts the plugin C<.extents> method and can be used to +modify extent requests. + +This function will not be called if C<.can_extents> returned false; in +turn, the filter should not call Cextents> if +Ccan_extents> did not return true. + +It is possible for filters to transform the extents list received back +from the layer below. Without error checking it would look like this: + + myfilter_extents (..., uint32_t count, uint64_t offset, ...) + { + size_t i; + struct nbdkit_extents *extents2; + struct nbdkit_extent e; + int64_t size; + + size = next_ops->get_size (nxdata); + extents2 = nbdkit_extents_new (offset + shift, size - shift); + next_ops->extents (nxdata, count, offset + shift, flags, extents2, err); + for (i = 0; i < nbdkit_extents_count (extents2); ++i) { + e = nbdkit_get_extent (extents2, i); + e.offset -= shift; + nbdkit_add_extent (extents, e.offset, e.length, e.type); + } + nbdkit_extents_free (extents2); + } + +If there is an error, C<.extents> should call C with an +error message B return -1 with C set to the positive errno +value to return to the client. + +=head3 Allocating and freeing nbdkit_extents list + +Two functions are provided to filters only for allocating and freeing +the map: + + struct nbdkit_extents *nbdkit_extents_new (uint64_t start, uint64_t end); + +Allocates and returns a new, empty extents list. The C +parameter is the start of the range described in the list, and the +C parameter is the offset of the byte beyond the end. Normally +you would pass in C as the start and the size of the plugin as +the end, but for filters which adjust offsets, they should pass in the +adjusted offset. + +On error this function can return C. In this case it calls +C and/or C as required. + + void nbdkit_extents_free (struct nbdkit_extents *); + +Frees an existing extents list. + +=head3 Iterating over nbdkit_extents list + +Two functions are provided to filters only to iterate over the extents +in order: + + size_t nbdkit_extents_count (const struct nbdkit_extents *); + +Returns the number of extents in the list. + + struct nbdkit_extent { + uint64_t offset; + uint64_t length; + uint32_t type; + }; + struct nbdkit_extent nbdkit_get_extent (const struct nbdkit_extents *, + size_t i); + +Returns a copy of the C'th extent. + +=head1 ERROR HANDLING + +If there is an error in the filter itself, the filter should call +C to report an error message. If the callback is +involved in serving data, the explicit C parameter determines the +error code that will be sent to the client; other callbacks should +return the appropriate error indication, eg. C or C<-1>. + +C has the following prototype and works like +L: + + void nbdkit_error (const char *fs, ...); + void nbdkit_verror (const char *fs, va_list args); + +For convenience, C preserves the value of C, and +also supports the glibc extension of a single C<%m> in a format string +expanding to C, even on platforms that don't support +that natively. + +=head1 DEBUGGING + +Run the server with I<-f> and I<-v> options so it doesn't fork and you +can see debugging information: + + nbdkit -fv --filter=./myfilter.so plugin [key=value [key=value [...]]] + +To print debugging information from within the filter, call +C, which has the following prototype and works like +L: + + void nbdkit_debug (const char *fs, ...); + void nbdkit_vdebug (const char *fs, va_list args); + +For convenience, C preserves the value of C, and +also supports the glibc extension of a single C<%m> in a format string +expanding to C, even on platforms that don't support +that natively. Note that C only prints things when the +server is in verbose mode (I<-v> option). + +=head2 Debug Flags + +Debug Flags in filters work exactly the same way as plugins. See +L. + +=head1 INSTALLING THE FILTER + +The filter is a C<*.so> file and possibly a manual page. You can of +course install the filter C<*.so> file wherever you want, and users +will be able to use it by running: + + nbdkit --filter=/path/to/filter.so plugin [args] + +However B the shared library has a name of the form +C-filter.so> B the library is installed in the +C<$filterdir> directory, then users can be run it by only typing: + + nbdkit --filter=name plugin [args] + +The location of the C<$filterdir> directory is set when nbdkit is +compiled and can be found by doing: + + nbdkit --dump-config + +If using the pkg-config/pkgconf system then you can also find the +filter directory at compile time by doing: + + pkgconf nbdkit --variable=filterdir + +=head1 PKG-CONFIG/PKGCONF + +nbdkit provides a pkg-config/pkgconf file called C which +should be installed on the correct path when the nbdkit development +environment is installed. You can use this in autoconf +F scripts to test for the development environment: + + PKG_CHECK_MODULES([NBDKIT], [nbdkit >= 1.2.3]) + +The above will fail unless nbdkit E 1.2.3 and the header file is +installed, and will set C and C +appropriately for compiling filters. + +You can also run pkg-config/pkgconf directly, for example: + + if ! pkgconf nbdkit --exists; then + echo "you must install the nbdkit development environment" + exit 1 + fi + +You can also substitute the filterdir variable by doing: + + PKG_CHECK_VAR([NBDKIT_FILTERDIR], [nbdkit], [filterdir]) + +which defines C<$(NBDKIT_FILTERDIR)> in automake-generated Makefiles. + +=head1 SEE ALSO + +L, +L. + +Standard filters provided by nbdkit: + +__FILTER_LINKS__. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2013-2018 Red Hat Inc. diff --git a/docs/nbdkit-loop.pod b/docs/nbdkit-loop.pod new file mode 100644 index 0000000..2b35176 --- /dev/null +++ b/docs/nbdkit-loop.pod @@ -0,0 +1,147 @@ +=head1 NAME + +nbdkit-loop - use nbdkit with the Linux kernel client to create loop +devices and loop mounts + +=head1 DESCRIPTION + +nbdkit (server) can be used with the Linux kernel nbd (client) in a +loop mode allowing any of the plugins supported by nbdkit to be turned +into Linux block devices. + +In addition to L itself, the main commands you will use +are: + +=over 4 + +=item nbd-client -b 512 localhost /dev/nbd0 + +which attaches a locally running nbdkit instance to the kernel device +F. I<-b 512> can be omitted when using +S E 3.19>. + +=item nbd-client -d /dev/nbd0 + +which detaches F, and: + +=item nbd-client -c /dev/nbd0 + +which queries whether F is attached or not. + +=item modprobe nbd + +which may be needed to load the nbd client kernel module. + +=back + +The L and L commands must be run as root. + +=head2 Warning: Do not loop mount untrusted filesystems + +Untrusted filesystems and untrusted disk images should not be loop +mounted because they could contain exploits that attack your host +kernel. Use the tools from L instead since it safely +isolates untrusted filesystems from the host. + +=head2 Loop mount a filesystem from a compressed file + +If you have a filesystem or disk image in xz-compressed format then +you can use L and L to +loop mount it as follows: + + nbdkit --filter=xz file disk.xz + nbd-client -b 512 localhost /dev/nbd0 + mount /dev/nbd0p1 /mnt + +=head2 Loop mount a filesystem from a web server + +You can use L to loop mount a filesystem from a +disk image on a web server: + + nbdkit [--filter=xz] curl https://example.com/disk.img + nbd-client -b 512 localhost /dev/nbd0 + mount /dev/nbd0p1 /mnt + +Use I<--filter=xz> if the remote image is XZ-compressed. + +=head2 Create a giant btrfs filesystem + +nbdkit is useful for testing the limits of Linux filesystems. Using +L you can create virtual disks stored in RAM +with a virtual size up to S<2⁶³-1 bytes>, and then create filesystems +on these: + + nbdkit memory $(( 2**63 - 1 )) + nbd-client -b 512 localhost /dev/nbd0 + +Partition the device using GPT, creating a single partition with all +default settings: + + gdisk /dev/nbd0 + +Make a btrfs filesystem on the disk and mount it: + + mkfs.btrfs -K /dev/nbd0p1 + mount /dev/nbd0p1 /mnt + +=head2 Inject errors into Linux devices + +Using L you can see how Linux devices react to +errors: + + nbdkit --filter=error \ + memory size=64M \ + error-rate=100% error-file=/tmp/inject + nbd-client -b 512 localhost /dev/nbd0 + mkfs -t ext4 /dev/nbd0 + mount /dev/nbd0 /mnt + +Inject errors by touching F, and stop injecting errors by +removing this file. + +=head2 Write Linux block devices in shell script + +Using L you can write custom Linux block devices +in shell script for testing. For example the following shell script +creates a disk which contains a bad sector: + + #!/bin/bash - + case "$1" in + get_size) echo 64M ;; + pread) + if [ $4 -le 100000 ] && [ $(( $4+$3 )) -gt 100000 ]; then + echo EIO Bad block >&2 + exit 1 + else + dd if=/dev/zero count=$3 iflag=count_bytes + fi ;; + *) exit 2 ;; + esac + +Create a loop from this shell script using: + + nbdkit sh ./bad-sector.sh + nbd-client -b 512 localhost /dev/nbd0 + +You can then try running tests such as: + + badblocks /dev/nbd0 + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L, +L, L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2013-2018 Red Hat Inc. diff --git a/docs/nbdkit-plugin.pod b/docs/nbdkit-plugin.pod new file mode 100644 index 0000000..272ec67 --- /dev/null +++ b/docs/nbdkit-plugin.pod @@ -0,0 +1,1084 @@ +=head1 NAME + +nbdkit-plugin - how to write nbdkit plugins + +=head1 SYNOPSIS + + #define NBDKIT_API_VERSION 2 + + #include + + #define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS + + static void * + myplugin_open (void) + { + /* create a handle ... */ + return handle; + } + + static struct nbdkit_plugin plugin = { + .name = "myplugin", + .open = myplugin_open, + .get_size = myplugin_get_size, + .pread = myplugin_pread, + .pwrite = myplugin_pwrite, + /* etc */ + }; + + NBDKIT_REGISTER_PLUGIN(plugin) + +When this has been compiled to a shared library, do: + + nbdkit [--args ...] ./myplugin.so [key=value ...] + +When debugging, use the I<-fv> options: + + nbdkit -fv ./myplugin.so [key=value ...] + +=head1 DESCRIPTION + +An nbdkit plugin is a new source device which can be served using the +Network Block Device (NBD) protocol. This manual page describes how +to create an nbdkit plugin in C. + +To see example plugins: +L + +Plugins written in C have an ABI guarantee: a plugin compiled against +an older version of nbdkit will still work correctly when loaded with +a newer nbdkit. We also try (but cannot guarantee) to support plugins +compiled against a newer version of nbdkit when loaded with an older +nbdkit, although the plugin may have reduced functionality if it +depends on features only provided by newer nbdkit. + +For plugins written in C, we also provide an API guarantee: a plugin +written against an older header will still compile unmodified with a +newer nbdkit. + +The API guarantee does not always apply to plugins written in other +(non-C) languages which may have to adapt to changes when recompiled +against a newer nbdkit. + +To write plugins in other languages, see: +__LANG_PLUGIN_LINKS__. + +=head1 C<#define NBDKIT_API_VERSION 2> + +Plugins must choose which API version they want to use, by defining +NBDKIT_API_VERSION to a positive integer prior to including +C (or any other nbdkit header). The default version +is 1 for backwards-compatibility with nbdkit v1.1.26 and earlier; +however, it is recommended that new plugins be written to the maximum +version (currently 2) as it enables more features and better +interaction with nbdkit filters. Therefore, the rest of this document +only covers the version 2 interface. A newer nbdkit will always +support plugins written in C which were compiled against any prior API +version. + +=head1 C<#include Enbdkit-plugin.hE> + +All plugins should start by including this header file, after +optionally choosing an API version. + +=head1 C<#define THREAD_MODEL> + +All plugins must define a thread model. See L below for +details. It is generally safe to use: + + #define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS + +=head1 C + +All plugins must define and register one C, +which contains the name of the plugin and pointers to callback +functions. + + static struct nbdkit_plugin plugin = { + .name = "myplugin", + .longname = "My Plugin", + .description = "This is my great plugin for nbdkit", + .open = myplugin_open, + .get_size = myplugin_get_size, + .pread = myplugin_pread, + .pwrite = myplugin_pwrite, + /* etc */ + }; + + NBDKIT_REGISTER_PLUGIN(plugin) + +The C<.name> field is the name of the plugin. + +The callbacks are described below (see L). Only C<.name>, +C<.open>, C<.get_size> and C<.pread> are required. All other +callbacks can be omitted. However almost all plugins should have a +C<.close> callback. Most real-world plugins will also want to declare +some of the other callbacks. + +The nbdkit server calls the callbacks in the following order over the +lifetime of the plugin: + +=over 4 + +=item C<.load> + +is called once just after the plugin is loaded into memory. + +=item C<.config> and C<.config_complete> + +C<.config> is called zero or more times during command line parsing. +C<.config_complete> is called once after all configuration information +has been passed to the plugin. + +Both are called after loading the plugin but before any connections +are accepted. + +=item C<.open> + +A new client has connected. + +=item C<.can_write>, C<.get_size> and other option negotiation callbacks + +These are called during option negotiation with the client, but before +any data is served. These callbacks may return different values +across different C<.open> calls, but within a single connection, must +always return the same value; other code in nbdkit may cache the +per-connection value returned rather than using the callback a second +time. + +=item C<.pread>, C<.pwrite> and other data serving callbacks + +After option negotiation has finished, these may be called to serve +data. Depending on the thread model chosen, they might be called in +parallel from multiple threads. The data serving callbacks include a +flags argument; the results of the negotiation callbacks influence +whether particular flags will ever be passed to a data callback. + +=item C<.close> + +The client has disconnected. + +=item C<.open> ... C<.close> + +The sequence C<.open> ... C<.close> can be called repeatedly over the +lifetime of the plugin, and can be called in parallel (depending on +the thread model). + +=item C<.unload> + +is called once just before the plugin is unloaded from memory. + +=back + +=head1 FLAGS + +The following flags are defined by nbdkit, and used in various data +serving callbacks as follows: + +=over 4 + +=item C + +This flag is used by the C<.zero> callback; there is no way to disable +this flag, although a plugin that does not support trims as a way to +write zeroes may ignore the flag without violating expected semantics. + +=item C + +This flag represents Forced Unit Access semantics. It is used by the +C<.pwrite>, C<.zero>, and C<.trim> callbacks to indicate that the +plugin must not return a result until the action has landed in +persistent storage. This flag will not be sent to the plugin unless +C<.can_fua> is provided and returns C. + +=back + +The following defines are valid as successful return values for +C<.can_fua>: + +=over 4 + +=item C + +Forced Unit Access is not supported; the client must manually request +a flush after writes have completed. The C flag will +not be passed to the plugin's write callbacks. + +=item C + +The client may request Forced Unit Access, but it is implemented by +emulation, where nbdkit calls C<.flush> after a write operation; this +is semantically correct, but may hurt performance as it tends to flush +more data than just what the client requested. The C +flag will not be passed to the plugin's write callbacks. + +=item C + +The client may request Forced Unit Access, which results in the +C flag being passed to the plugin's write callbacks +(C<.pwrite>, C<.trim>, and C<.zero>). When the flag is set, these +callbacks must not return success until the client's request has +landed in persistent storage. + +=back + +=head1 ERROR HANDLING + +If there is an error in the plugin, the plugin should call +C to report an error message; additionally, if the +callback is involved in serving data, the plugin should call +C to influence the error code that will be sent to +the client. These two functions can be called in either order. Then, +the callback should return the appropriate error indication, +eg. C or C<-1>. + +If the call to C is omitted while serving data, then +the global variable C may be used. For plugins which have +C<.errno_is_preserved == 1> the core code will use C. In +plugins written in non-C languages, we usually cannot trust that +C will not be overwritten when returning from that language to +C. In that case, either the plugin must call C or +hard-coded C is used. + +C has the following prototype and works like +L: + + void nbdkit_error (const char *fs, ...); + void nbdkit_verror (const char *fs, va_list args); + +For convenience, C preserves the value of C, and +also supports the glibc extension of a single C<%m> in a format string +expanding to C, even on platforms that don't support +that natively. + +C can be called at any time, but only has an impact +during callbacks for serving data, and only when the callback returns +an indication of failure. It has the following prototype: + + void nbdkit_set_error (int err); + +=head1 FILENAMES AND PATHS + +The server usually (not always) changes directory to C before it +starts serving connections. This means that any relative paths passed +during configuration will not work when the server is running +(example: S>). + +To avoid problems, prepend relative paths with the current directory +before storing them in the handle. Or open files and store the file +descriptor. + +=head2 C + + char *nbdkit_absolute_path (const char *filename); + +The utility function C converts any path to an +absolute path: if it is relative, then all this function does is +prepend the current working directory to the path, with no extra +checks. + +Note that this function works I when used in the C<.config>, and +C<.config_complete> callbacks. + +If conversion was not possible, this calls C and returns +C. Note that this function does not check that the file exists. + +The returned string must be freed by the caller. + +=head2 C + + char *nbdkit_realpath (const char *filename); + +The utility function C converts any path to an +absolute path, resolving symlinks. Under the hood it uses the +C function, and thus it fails if the path does not exist, +or it is not possible to access to any of the components of the path. + +Note that this function works I when used in the C<.config>, and +C<.config_complete> callbacks. + +If the path resolution was not possible, this calls C +and returns C. + +The returned string must be freed by the caller. + +=head2 umask + +All plugins will see a L of C<0022>. + +=head1 CALLBACKS + +=head2 C<.name> + + const char *name; + +This field (a string) is required, and B contain only ASCII +alphanumeric characters and be unique amongst all plugins. + +=head2 C<.version> + + const char *version; + +Plugins may optionally set a version string which is displayed in help +and debugging output. + +=head2 C<.longname> + + const char *longname; + +An optional free text name of the plugin. This field is used in error +messages. + +=head2 C<.description> + + const char *description; + +An optional multi-line description of the plugin. + +=head2 C<.load> + + void load (void); + +This is called once just after the plugin is loaded into memory. You +can use this to perform any global initialization needed by the +plugin. + +=head2 C<.unload> + + void unload (void); + +This may be called once just before the plugin is unloaded from +memory. Note that it's not guaranteed that C<.unload> will always be +called (eg. the server might be killed or segfault), so you should try +to make the plugin as robust as possible by not requiring cleanup. +See also L below. + +=head2 C<.dump_plugin> + + void dump_plugin (void); + +This optional callback is called when the +S> command is used. It should print +any additional informative C fields to stdout as needed. +Prefixing the keys with the name of the plugin will avoid conflicts. + +=head2 C<.config> + + int config (const char *key, const char *value); + +On the nbdkit command line, after the plugin filename, come an +optional list of C arguments. These are passed to the +plugin through this callback when the plugin is first loaded and +before any connections are accepted. + +This callback may be called zero or more times. + +Both C and C parameters will be non-NULL. The strings are +owned by nbdkit but will remain valid for the lifetime of the plugin, +so the plugin does not need to copy them. + +The key will be a non-empty string beginning with an ASCII alphabetic +character (C C). The rest of the key must contain only +ASCII alphanumeric plus period, underscore or dash characters (C +C C<0-9> C<.> C<_> C<->). The value may be an arbitrary string, +including an empty string. + +The names of Cs accepted by plugins is up to the plugin, but you +should probably look at other plugins and follow the same conventions. + +If the value is a relative path, then note that the server changes +directory when it starts up. See L above. + +If the C<.config> callback is not provided by the plugin, and the user +tries to specify any C arguments, then nbdkit will exit +with an error. + +If there is an error, C<.config> should call C with an +error message and return C<-1>. + +=head2 C<.magic_config_key> + + const char *magic_config_key; + +This optional string can be used to set a "magic" key used when +parsing plugin parameters. It affects how "bare parameters" (those +which do not contain an C<=> character) are parsed on the command +line. + +If C then any bare parameters are passed to +the C<.config> method as: S>. + +If C is not set then we behave as in nbdkit E +1.7: If the first parameter on the command line is bare then it is +passed to the C<.config> method as: S>. +Any other bare parameters give errors. + +=head2 C<.config_complete> + + int config_complete (void); + +This optional callback is called after all the configuration has been +passed to the plugin. It is a good place to do checks, for example +that the user has passed the required parameters to the plugin. + +If there is an error, C<.config_complete> should call C +with an error message and return C<-1>. + +=head2 C<.config_help> + + const char *config_help; + +This optional multi-line help message should summarize any +C parameters that it takes. It does I need to repeat +what already appears in C<.description>. + +If the plugin doesn't take any config parameters you should probably +omit this. + +=head2 C<.open> + + void *open (int readonly); + +This is called when a new client connects to the nbdkit server. The +callback should allocate a handle and return it. This handle +is passed back to other callbacks and could be freed in the C<.close> +callback. + +Note that the handle is completely opaque to nbdkit, but it must not +be NULL. If you don't need to use a handle, return +C which is a static non-NULL pointer. + +The C flag informs the plugin that the user requested a +read-only connection using the I<-r> flag on the command line. Note +that the plugin may I force the connection to be +readonly (even if this flag is false) by returning false from the +C<.can_write> callback. So if your plugin can only serve read-only, +you can ignore this parameter. + +If there is an error, C<.open> should call C with an +error message and return C. + +=head2 C<.close> + + void close (void *handle); + +This is called when the client closes the connection. It should clean +up any per-connection resources. + +Note there is no way in the NBD protocol to communicate close errors +back to the client, for example if your plugin calls L and +you are checking for errors (as you should do). Therefore the best +you can do is to log the error on the server. Well-behaved NBD +clients I try to flush the connection before it is closed and +check for errors, but obviously this is outside the scope of nbdkit. + +=head2 C<.get_size> + + int64_t get_size (void *handle); + +This is called during the option negotiation phase of the protocol +to get the size (in bytes) of the block device being exported. + +The returned size must be E 0. If there is an error, C<.get_size> +should call C with an error message and return C<-1>. + +=head2 C<.can_write> + + int can_write (void *handle); + +This is called during the option negotiation phase to find out if the +handle supports writes. + +If there is an error, C<.can_write> should call C with +an error message and return C<-1>. + +This callback is not required. If omitted, then we return true iff a +C<.pwrite> callback has been defined. + +=head2 C<.can_flush> + + int can_flush (void *handle); + +This is called during the option negotiation phase to find out if the +handle supports the flush-to-disk operation. + +If there is an error, C<.can_flush> should call C with +an error message and return C<-1>. + +This callback is not required. If omitted, then we return true iff a +C<.flush> callback has been defined. + +=head2 C<.is_rotational> + + int is_rotational (void *handle); + +This is called during the option negotiation phase to find out if the +backing disk is a rotational medium (like a traditional hard disk) or +not (like an SSD). If true, this may cause the client to reorder +requests to make them more efficient for a slow rotating disk. + +If there is an error, C<.is_rotational> should call C +with an error message and return C<-1>. + +This callback is not required. If omitted, then we return false. + +=head2 C<.can_trim> + + int can_trim (void *handle); + +This is called during the option negotiation phase to find out if the +plugin supports the trim/discard operation for punching holes in the +backing storage. + +If there is an error, C<.can_trim> should call C with an +error message and return C<-1>. + +This callback is not required. If omitted, then we return true iff a +C<.trim> callback has been defined. + +=head2 C<.can_zero> + + int can_zero (void *handle); + +This is called during the option negotiation phase to find out if the +plugin wants the C<.zero> callback to be utilized. Support for +writing zeros is still advertised to the client (unless the nbdkit +filter nozero is also used), so returning false merely serves as a way +to avoid complicating the C<.zero> callback to have to fail with +C on the connections where it will never be more efficient +than using C<.pwrite> up front. + +If there is an error, C<.can_zero> should call C with an +error message and return C<-1>. + +This callback is not required. If omitted, then nbdkit always tries +C<.zero> first if it is present, and gracefully falls back to +C<.pwrite> if C<.zero> was absent or failed with C. + +=head2 C<.can_extents> + + int can_extents (void *handle); + +This is called during the option negotiation phase to find out if the +plugin supports detecting allocated (non-sparse) regions of the disk +with the C<.extents> callback. + +If there is an error, C<.can_extents> should call C with +an error message and return C<-1>. + +This callback is not required. If omitted, then we return true iff a +C<.extents> callback has been defined. + +=head2 C<.can_fua> + + int can_fua (void *handle); + +This is called during the option negotiation phase to find out if the +plugin supports the Forced Unit Access (FUA) flag on write, zero, and +trim requests. If this returns C, FUA support is not +advertised to the guest; if this returns C, the +C<.flush> callback must work (even if C<.can_flush> returns false), +and FUA support is emulated by calling C<.flush> after any write +operation; if this returns C, then the C<.pwrite>, +C<.zero>, and C<.trim> callbacks (if implemented) must handle the flag +C, by not returning until that action has landed in +persistent storage. + +If there is an error, C<.can_fua> should call C with an +error message and return C<-1>. + +This callback is not required unless a plugin wants to specifically +handle FUA requests. If omitted, nbdkit checks whether C<.flush> +exists, and behaves as if this function returns C or +C as appropriate. + +=head2 C<.can_multi_conn> + + int can_multi_conn (void *handle); + +This is called during the option negotiation phase to find out if the +plugin is prepared to handle multiple connections from a single +client. If the plugin sets this to true then a client may try to open +multiple connections to the nbdkit server and spread requests across +all connections to maximize parallelism. If the plugin sets it to +false (which is the default) then well-behaved clients should only +open a single connection, although we cannot control what clients do +in practice. + +Specifically it means that either the plugin does not cache requests +at all. Or if it does cache them then the effects of a C<.flush> +request or setting C on a request must be visible +across all connections to the plugin before the plugin replies to that +request. + +If you use Linux L option S> with +S 1> then Linux checks this flag and will refuse to connect +if C<.can_multi_conn> is false. + +If there is an error, C<.can_multi_conn> should call C +with an error message and return C<-1>. + +This callback is not required. If omitted, then we return false. + +=head2 C<.pread> + + int pread (void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags); + +During the data serving phase, nbdkit calls this callback to read data +from the backing store. C bytes starting at C in the +backing store should be read and copied into C. nbdkit takes +care of all bounds- and sanity-checking, so the plugin does not need +to worry about that. + +The parameter C exists in case of future NBD protocol +extensions; at this time, it will be 0 on input. + +The callback must read the whole C bytes if it can. The NBD +protocol doesn't allow partial reads (instead, these would be errors). +If the whole C bytes was read, the callback should return C<0> +to indicate there was I error. + +If there is an error (including a short read which couldn't be +recovered from), C<.pread> should call C with an error +message, and C to record an appropriate error +(unless C is sufficient), then return C<-1>. + +=head2 C<.pwrite> + + int pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset, + uint32_t flags); + +During the data serving phase, nbdkit calls this callback to write +data to the backing store. C bytes starting at C in +the backing store should be written using the data in C. nbdkit +takes care of all bounds- and sanity-checking, so the plugin does not +need to worry about that. + +This function will not be called if C<.can_write> returned false. The +parameter C may include C on input based on +the result of C<.can_fua>. + +The callback must write the whole C bytes if it can. The NBD +protocol doesn't allow partial writes (instead, these would be +errors). If the whole C bytes was written successfully, the +callback should return C<0> to indicate there was I error. + +If there is an error (including a short write which couldn't be +recovered from), C<.pwrite> should call C with an error +message, and C to record an appropriate error +(unless C is sufficient), then return C<-1>. + +=head2 C<.flush> + + int flush (void *handle, uint32_t flags); + +During the data serving phase, this callback is used to +L the backing store, ie. to ensure it has been +completely written to a permanent medium. If that is not possible +then you can omit this callback. + +This function will not be called directly by the client if +C<.can_flush> returned false; however, it may still be called by +nbdkit if C<.can_fua> returned C. The parameter +C exists in case of future NBD protocol extensions; at this +time, it will be 0 on input. + +If there is an error, C<.flush> should call C with an +error message, and C to record an appropriate error +(unless C is sufficient), then return C<-1>. + +=head2 C<.trim> + + int trim (void *handle, uint32_t count, uint64_t offset, uint32_t flags); + +During the data serving phase, this callback is used to "punch holes" +in the backing store. If that is not possible then you can omit this +callback. + +This function will not be called if C<.can_trim> returned false. The +parameter C may include C on input based on +the result of C<.can_fua>. + +If there is an error, C<.trim> should call C with an +error message, and C to record an appropriate error +(unless C is sufficient), then return C<-1>. + +=head2 C<.zero> + + int zero (void *handle, uint32_t count, uint64_t offset, uint32_t flags); + +During the data serving phase, this callback is used to write C +bytes of zeroes at C in the backing store. + +This function will not be called if C<.can_zero> returned false. On +input, the parameter C may include C +unconditionally, and C based on the result of +C<.can_fua>. + +If C is requested, the operation can punch a +hole instead of writing actual zero bytes, but only if subsequent +reads from the hole read as zeroes. If this callback is omitted, or +if it fails with C (whether by C or +C), then C<.pwrite> will be used instead. + +The callback must write the whole C bytes if it can. The NBD +protocol doesn't allow partial writes (instead, these would be +errors). If the whole C bytes was written successfully, the +callback should return C<0> to indicate there was I error. + +If there is an error, C<.zero> should call C with an +error message, and C to record an appropriate error +(unless C is sufficient), then return C<-1>. + +=head2 C<.extents> + + int extents (void *handle, uint32_t count, uint64_t offset, + uint32_t flags, struct nbdkit_extents *extents); + +During the data serving phase, this callback is used to detect +allocated, sparse and zeroed regions of the disk. + +This function will not be called if C<.can_extents> returned false. +nbdkit's default behaviour in this case is to treat the whole virtual +disk as if it was allocated. + +The callback should detect and return the list of extents overlapping +the range C<[offset...offset+count-1]>. The C parameter +points to an opaque object which the callback should fill in by +calling C. See L below. + +If there is an error, C<.extents> should call C with an +error message, and C to record an appropriate error +(unless C is sufficient), then return C<-1>. + +=head3 Extents list + +The plugin C callback is passed an opaque pointer C. This structure represents a list of +L +describing which areas of the disk are allocated, which are sparse +(“holes”), and, if supported, which are zeroes. + +The C callback should scan the disk starting at C and +call C for each extent found. + +Extents overlapping the range C<[offset...offset+count-1]> should be +returned if possible. However nbdkit ignores extents E offset so +the plugin may, if it is easier to implement, return all extent +information for the whole disk. The plugin may return extents beyond +the end of the range. It may also return extent information for less +than the whole range, but it must return at least one extent +overlapping C. + +The extents B be added in ascending order, and B be +contiguous. + +The C parameter of the C<.extents> callback may contain the +flag C. This means that the client is only +requesting information about the extent overlapping C. The +plugin may ignore this flag, or as an optimization it may return just +a single extent for C. + + int nbdkit_add_extent (struct nbdkit_extents *extents, + uint64_t offset, uint64_t length, uint32_t type); + +Add an extent covering C<[offset...offset+length-1]> of one of +the following four types: + +=over 4 + +=item C + +A normal, allocated data extent. + +=item C + +An unallocated extent, a.k.a. a “hole”, which reads back as zeroes. +This is the normal type of hole applicable to most disks. + +=item C + +An allocated extent which is known to contain only zeroes. + +=item C + +An unallocated extent (hole) which does not read back as zeroes. Note +this should only be used in specialized circumstances such as when +writing a plugin for (or to emulate) certain SCSI drives which do not +guarantee that trimmed blocks read back as zeroes. + +=back + +C returns C<0> on success or C<-1> on failure. On +failure C and/or C has already been +called. + +=head1 THREADS + +Each nbdkit plugin must declare its thread safety model by defining +the C macro. (This macro is used by +C). + +The possible settings for C are defined below. + +=over 4 + +=item C<#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_CONNECTIONS> + +Only a single handle can be open at any time, and all requests happen +from one thread. + +Note this means only one client can connect to the server at any time. +If a second client tries to connect it will block waiting for the +first client to close the connection. + +=item C<#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS> + +I. + +Multiple handles can be open at the same time, but requests are +serialized so that for the plugin as a whole only one +open/read/write/close (etc) request will be in progress at any time. + +This is a useful setting if the library you are using is not +thread-safe. However performance may not be good. + +=item C<#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS> + +Multiple handles can be open and multiple data requests can happen in +parallel. However only one request will happen per handle at a time +(but requests on different handles might happen concurrently). + +=item C<#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL> + +Multiple handles can be open and multiple data requests can happen in +parallel (even on the same handle). + +All the libraries you use must be thread-safe and reentrant. You may +also need to provide mutexes for fields in your connection handle. + +=back + +If none of the above thread models are suitable, then use +C and implement your own locking using +C etc. + +=head1 SHUTDOWN + +When nbdkit receives certain signals it will shut down (see +L). The server will wait for any currently running +plugin callbacks to finish and also call the C<.unload> callback +before unloading the plugin. + +Note that it's not guaranteed this can always happen (eg. the server +might be killed by C or segfault). + +=head1 PARSING SIZE PARAMETERS + +Use the C utility function to parse human-readable +size strings such as "100M" into the size in bytes. + + int64_t nbdkit_parse_size (const char *str); + +C can be a string in a number of common formats. The function +returns the size in bytes. If there was an error, it returns C<-1>. + +=head1 PARSING BOOLEAN PARAMETERS + +Use the C utility function to parse human-readable +strings such as "on" into a boolean value. + + int nbdkit_parse_bool (const char *str); + +C can be a string containing a case-insensitive form of various +common toggle values. The function returns 0 or 1 if the parse was +successful. If there was an error, it returns C<-1>. + +=head1 READING PASSWORDS + +The C utility function can be used to read +passwords from config parameters: + + int nbdkit_read_password (const char *value, char **password); + +For example: + + char *password = NULL; + + static int + myplugin_config (const char *key, const char *value) + { + .. + if (strcmp (key, "password") == 0) { + free (password); + if (nbdkit_read_password (value, &password) == -1) + return -1; + } + .. + } + +The C result string is allocated by malloc, and so you may +need to free it. + +This function recognizes several password formats. A password may be +used directly on the command line, eg: + + nbdkit myplugin password=mostsecret + +But more securely this function can also read a password +interactively: + + nbdkit myplugin password=- + +or from a file: + + nbdkit myplugin password=+/tmp/secret + +(If the password begins with a C<-> or C<+> character then it must be +passed in a file). + +=head1 DEBUGGING + +Run the server with I<-f> and I<-v> options so it doesn't fork and you +can see debugging information: + + nbdkit -fv ./myplugin.so [key=value [key=value [...]]] + +To print debugging information from within the plugin, call +C, which has the following prototype and works like +L: + + void nbdkit_debug (const char *fs, ...); + void nbdkit_vdebug (const char *fs, va_list args); + +For convenience, C preserves the value of C, and +also supports the glibc extension of a single C<%m> in a format string +expanding to C, even on platforms that don't support +that natively. Note that C only prints things when the +server is in verbose mode (I<-v> option). + +=head2 Debug Flags + +The I<-v> option switches general debugging on or off, and this +debugging should be used for messages which are useful for all users +of your plugin. + +In cases where you want to enable specific extra debugging to track +down bugs in plugins or filters — mainly for use by the plugin/filter +developers themselves — you can define Debug Flags. These are global +ints called C: + + int myplugin_debug_foo; + int myplugin_debug_bar; + ... + if (myplugin_debug_foo) { + nbdkit_debug ("lots of extra debugging about foo: ..."); + } + +Debug Flags can be controlled on the command line using the I<-D> (or +I<--debug>) option: + + nbdkit -f -v -D myplugin.foo=1 -D myplugin.bar=2 myplugin [...] + +Note C is the name passed to C<.name> in the C. + +You should only use this feature for debug settings. For general +settings use ordinary plugin parameters. Debug Flags can only be C +ints. They are not supported by non-C language plugins. + +=head1 INSTALLING THE PLUGIN + +The plugin is a C<*.so> file and possibly a manual page. You can of +course install the plugin C<*.so> file wherever you want, and users +will be able to use it by running: + + nbdkit /path/to/plugin.so [args] + +However B the shared library has a name of the form +C-plugin.so> B the library is installed in the +C<$plugindir> directory, then users can be run it by only typing: + + nbdkit name [args] + +The location of the C<$plugindir> directory is set when nbdkit is +compiled and can be found by doing: + + nbdkit --dump-config + +If using the pkg-config/pkgconf system then you can also find the +plugin directory at compile time by doing: + + pkgconf nbdkit --variable=plugindir + +=head1 PKG-CONFIG/PKGCONF + +nbdkit provides a pkg-config/pkgconf file called C which +should be installed on the correct path when the nbdkit plugin +development environment is installed. You can use this in autoconf +F scripts to test for the development environment: + + PKG_CHECK_MODULES([NBDKIT], [nbdkit >= 1.2.3]) + +The above will fail unless nbdkit E 1.2.3 and the header file is +installed, and will set C and C +appropriately for compiling plugins. + +You can also run pkg-config/pkgconf directly, for example: + + if ! pkgconf nbdkit --exists; then + echo "you must install the nbdkit plugin development environment" + exit 1 + fi + +You can also substitute the plugindir variable by doing: + + PKG_CHECK_VAR([NBDKIT_PLUGINDIR], [nbdkit], [plugindir]) + +which defines C<$(NBDKIT_PLUGINDIR)> in automake-generated Makefiles. + +=head1 WRITING PLUGINS IN OTHER PROGRAMMING LANGUAGES + +You can also write nbdkit plugins in Lua, OCaml, Perl, Python, Ruby, +Rust, shell script or Tcl. Other programming languages may be offered +in future. + +For more information see: +__LANG_PLUGIN_LINKS__. + +Plugins written in scripting languages may also be installed in +C<$plugindir>. These must be called C-plugin> without +any extension. They must be executable, and they must use the shebang +header (see L). For example a plugin +written in Perl called C might be installed like this: + + $ head -1 foo.pl + #!/usr/sbin/nbdkit perl + + $ sudo install -m 0755 foo.pl $plugindir/nbdkit-foo-plugin + +and then users will be able to run it like this: + + $ nbdkit foo [args ...] + +=head1 SEE ALSO + +L, +L. + +Standard plugins provided by nbdkit: + +__PLUGIN_LINKS__. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +Pino Toscano + +=head1 COPYRIGHT + +Copyright (C) 2013-2018 Red Hat Inc. diff --git a/docs/nbdkit-probing.pod b/docs/nbdkit-probing.pod new file mode 100644 index 0000000..94bdfb4 --- /dev/null +++ b/docs/nbdkit-probing.pod @@ -0,0 +1,97 @@ +=head1 NAME + +nbdkit-probing - how to probe for nbdkit configuration and plugins + +=head1 SYNOPSIS + + nbdkit --dump-config + + nbdkit PLUGIN --dump-plugin + +=head1 DESCRIPTION + +You can query information about nbdkit and available plugins from the +nbdkit binary. + +=head2 Query basic configuration + + nbdkit --dump-config + +lists information about how nbdkit was configured. The most important +fields in the output are the name of the directory where nbdkit looks +for plugins and the version of nbdkit, eg: + + plugindir=/usr/lib64/nbdkit/plugins + version=1.2.3 + +=head2 Query information about a particular plugin + + nbdkit pluginname --dump-plugin + +(where I is the name or full path of a plugin) will dump +information about that plugin, eg: + + $ nbdkit file --dump-plugin + path=/usr/lib64/nbdkit/plugins/nbdkit-file-plugin.so + name=file + version=1.2.3 + api_version=1 + struct_size=176 + thread_model=serialize_requests + [etc] + +Plugins which ship with nbdkit usually have the same version as the +corresponding nbdkit binary. The nbdkit binary will always be able to +utilize plugins compiled against an older version of the header; +however, newer plugins may not be fully supported by an older nbdkit +binary (for example, a plugin compiled with C of 2 +fails to load with an older nbdkit that only knows +C 1). + +=head2 Detect if a plugin is installed + +To find out if a plugin is installed (and working) in the plugin +directory, use I<--dump-plugin> as above: + + $ nbdkit foo --dump-plugin + nbdkit: error: cannot open plugin 'foo': /usr/lib64/nbdkit/plugins/nbdkit-foo-plugin.so: cannot open shared object file: No such file or directory + Use 'nbdkit --help' or read the nbdkit(1) manual page for documentation. + +Note it is better to test for the existence of plugins this way rather +than just seeing if the F<.so> file exists, because nbdkit will load +the plugin and check that all its dependencies can be satisfied, and +also that plugin registration works. + +=head2 List all plugins in the plugin directory + +You could simply get the plugin directory (from I<--dump-config>) and +list all files in this directory called F. + +However a better test is to run I<--dump-plugin> (see above) on each +one to check that it is working and all of its dependencies are +installed. A complete shell script which does this is: + + #!/bin/sh - + plugindir=`nbdkit --dump-config | grep ^plugindir= | sed 's/[^=]*=//'` + for f in $plugindir/nbdkit-*-plugin.so; do + if nbdkit "$f" --dump-plugin >/dev/null 2>&1; then + b=`echo "$f" | sed 's,.*/nbdkit-\(.*\)-plugin.so$,\1,'` + echo "$b ($f)" + fi + done + +=head1 SEE ALSO + +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +Pino Toscano + +=head1 COPYRIGHT + +Copyright (C) 2013-2018 Red Hat Inc. diff --git a/docs/nbdkit-protocol.pod b/docs/nbdkit-protocol.pod new file mode 100644 index 0000000..f706cfd --- /dev/null +++ b/docs/nbdkit-protocol.pod @@ -0,0 +1,177 @@ +=head1 NAME + +nbdkit - which parts of the NBD protocol nbdkit supports + +=head1 SYNOPSIS + + nbdkit [-n|--newstyle] [-o|--oldstyle] [-e|--exportname EXPORTNAME] + [...] + +=head1 DESCRIPTION + +This page documents the level of support in nbdkit for various parts +of the NBD protocol. + +=head1 NEW STYLE VS OLD STYLE PROTOCOL + +The NBD protocol comes in two incompatible forms that we call +"oldstyle" and "newstyle". Unfortunately which protocol you should +use depends on the client and cannot be known in advance, nor can it +be negotiated from the server side. + +nbdkit defaults to the newstyle protocol since nbdkit E 1.3. The +newstyle protocol is better in every respect than the oldstyle +protocol and you should prefer it if possible. + +Use the I<-e> or I<--exportname> flag to set the optional exportname +for the newstyle protocol. + +Use the I<-o> or I<--oldstyle> flag to force the oldstyle protocol. + +=head2 Common clients and the protocol they require + + Client Protocol + ------------------------------------------------------------ + qemu <= 2.5 without exportname oldstyle + qemu <= 2.5 with exportname newstyle + qemu >= 2.6 client can talk either protocol + nbd-client < 3.10 client can talk either protocol + nbd-client >= 3.10 newstyle + any TLS (encrypted) client newstyle + nbdkit nbd plugin client can talk either protocol + +=head2 Errors seen if using the wrong protocol + +If you use qemu E 2.5 without the exportname field against a +newstyle server, it will give the error: + + Server requires an export name + +If you use qemu E 2.5 with the exportname field against an +oldstyle server, it will give the error: + + Server does not support export names + +If you use the oldstyle protocol with nbd-client E 3.10, it will +give the error: + + Error: It looks like you're trying to connect to an oldstyle server. + +=head2 NBD protocol and port number + +Port 10809/tcp is reserved by IANA for the NBD protocol, but you can +use nbdkit on any port or on Unix domain sockets. + +The NBD protocol specification claims that you should always use +newstyle when using port 10809, and use oldstyle on all other ports, +but this claim is not based on the reality of what NBD servers do, and +nbdkit does not require or encourage this. + +=head1 NBD PROTOCOL FEATURES SUPPORTED BY NBDKIT + +=over 4 + +=item newstyle protocol + +Supported in nbdkit E 1.1.12, and the default in nbdkit E 1.3. + +=item export names + +Supported in nbdkit E 1.1.12. + +nbdkit can advertise an export name, but ignores any export name sent +by the client. nbdkit does I support serving different data on +different export names. + +=item C + +Supported in nbdkit E 1.1.13. + +This protocol optimization avoids sending a useless block of zero +bytes during protocol negotiation. + +=item C + +Supported in nbdkit E 1.1.13. + +=item TLS with X.509 certificates + +Supported in nbdkit E 1.1.15. + +=item TLS with Pre-Shared Keys (PSK) + +Supported in nbdkit E 1.4.0. + +=item C + +Supported in nbdkit E 1.5.3. + +This protocol enhancement allows the server to return errors when +negotiating the export name. + +=item C + +Supported in nbdkit E 1.9.3. + +This protocol enhancement allows a client to inspect details about +the export without actually connecting. + +=item C + +Supported in nbdkit E 1.9.9. + +=item Structured Replies + +Supported in nbdkit E 1.11.8. + +However we don’t expose the capability to send structured replies to +plugins yet, nor do we send human-readable error messages using this +facility. + +=item Metadata Querying + +Supported in nbdkit E 1.11.8. + +=item Block Status + +Supported in nbdkit E 1.11.10. + +Only C (ie. querying which parts of an image are +sparse) is supported. + +Sparse reads (using C are not directly +supported, but a client can use block status to infer which portions +of the export do not need to be read. + +=item C + +Supported in nbdkit E 1.11.11. + +This protocol extension allows a client to force an all-or-none read +when structured replies are in effect. However, the flag is a no-op +until we extend the plugin API to allow a fragmented read in the first +place. + +=item Resize Extension + +I. + +=back + +=head1 SEE ALSO + +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +Pino Toscano + +=head1 COPYRIGHT + +Copyright (C) 2013-2018 Red Hat Inc. diff --git a/docs/nbdkit-service.pod b/docs/nbdkit-service.pod new file mode 100644 index 0000000..ad5ca50 --- /dev/null +++ b/docs/nbdkit-service.pod @@ -0,0 +1,117 @@ +=head1 NAME + +nbdkit-service - running nbdkit as a service, and systemd socket activation + +=head1 DESCRIPTION + +Most people start nbdkit from the command line or run it from another +program (see L. It is also possible to run nbdkit +as a standalone service, which is what this page describes. + +=head1 SOCKET ACTIVATION + +nbdkit supports socket activation (sometimes called systemd socket +activation). This is a simple protocol where instead of nbdkit itself +opening the listening socket(s), the parent process (typically +systemd) passes in pre-opened file descriptors. Socket activation +lets you serve infrequent NBD requests using a superserver without +needing nbdkit to be running the whole time. + +Socket activation is triggered when both the C and +C environment variables are set. In this mode using +I<-i>, I<-p>, I<--run>, I<-s> or I<-U> flags on the command line is +illegal and will cause an error. Also in this mode nbdkit does not +fork into the background (ie. I<-f> is implied). + +=head2 Using socket activation with systemd + +To use nbdkit with socket activation from systemd, create a unit file +ending in C<.socket> (eg. F) +containing: + + [Unit] + Description=NBDKit Network Block Device server + + [Socket] + ListenStream=10809 + + [Install] + WantedBy=sockets.target + +There are various formats for the C key. See +L for more information. + +Also create a service unit (eg. F) +containing: + + [Service] + ExecStart=/usr/sbin/nbdkit file /path/to/serve + +For more information on systemd and socket activation, see +L + +=head1 LOGGING + +Error messages from nbdkit can be sent to either standard error +(I<--log=stderr>) or to the system log (I<--log=syslog>). + +The default, if I<--log> is not specified on the command line, is to +send error messages to stderr, unless nbdkit forks into the background +in which case they are sent to syslog. + +In detail: + +=over 4 + +=item Messages go to standard error (stderr): + +When running from the command line in the foreground. + +When using systemd socket activation. + +Using I<--log=stderr> forces all messages to go to standard error. + +=item Messages go to the system log (syslog): + +When running from the command line, forked into the background. + +Using I<--log=syslog> forces all messages to go to the system log. + +=back + +Debug messages (I<-v>/I<--verbose>) always go to standard error and +are never sent to the system log. + +=head1 ENVIRONMENT VARIABLES + +=over 4 + +=item C + +=item C + +If present in the environment when nbdkit starts up, these trigger +L. + +=back + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +Pino Toscano + +=head1 COPYRIGHT + +Copyright (C) 2013-2018 Red Hat Inc. diff --git a/docs/nbdkit-tls.pod b/docs/nbdkit-tls.pod new file mode 100644 index 0000000..ecca87a --- /dev/null +++ b/docs/nbdkit-tls.pod @@ -0,0 +1,290 @@ +=head1 NAME + +nbdkit-tls - authentication and encryption of NBD connections +(sometimes incorrectly called "SSL") + +=head1 SYNOPSIS + + nbdkit [--tls=off|on|require] [--tls-certificates /path/to/certificates] + [--tls-psk /path/to/pskfile] [--tls-verify-peer] + PLUGIN [...] + +=head1 DESCRIPTION + +TLS (authentication and encryption, sometimes incorrectly called +"SSL") is supported if nbdkit was compiled with GnuTLS. This allows +the server to verify that the client is allowed access, and to encrypt +the contents of the protocol in transit over the network. + +TLS can be disabled or enabled by specifying either I<--tls=off> or +I<--tls=on>. With I<--tls=off>, if a client tries to use TLS to +connect, it will be rejected by the server (in other words, as if the +server doesn't support TLS). + +I<--tls=on> means that the client may choose to connect either with or +without TLS. + +Because I<--tls=on> is subject to downgrade attacks where a malicious +proxy pretends not to support TLS in order to force either the client +or server to communicate in plaintext, you can also specify +I<--tls=require>, where the server enables TLS B rejects all +non-TLS connection attempts. + +=head2 TLS with X.509 certificates + +When nbdkit starts up, it loads TLS certificates from some built-in +paths, or from the directory specified by the I<--tls-certificates> +option. + +Without I<--tls-certificates>, if nbdkit is started as a non-root user +(note this does not include use of the I<-u> or I<-g> options), nbdkit +looks in each of these paths in turn: + + $HOME/.pki/nbdkit/ + $HOME/.config/pki/nbdkit/ + +Without I<--tls-certificates>, if nbdkit is started as root, nbkit +looks in: + + $sysconfdir/pki/nbdkit/ + +(Use C and look at the +C setting to get the actual directory built +into the binary.) + +You can override both directories above by using +I<--tls-certificates /path/to/certificates>. + +In this directory, nbdkit expects to find several files: + +=over 4 + +=item F + +The Certificate Authority certificate. + +=item F + +The server certificate. + +=item F + +The server private key. + +=item F + +(Optional) The certificate revocation list. + +=back + +=head3 Setting up the Certificate Authority + +This step only needs to be done once per organization. It may be that +your organization already has a CA. + + $ certtool --generate-privkey > ca-key.pem + $ chmod 0600 ca-key.pem + +The F file is the CA private key and is I +sensitive data. With possession of this key, anyone can create +certificates pretending to be your organization! + +To create the CA certificate file: + + $ cat > ca.info < server-key.pem + $ chmod 0600 server-key.pem + +The server key file is sensitive. Setting the mode to C<0600> helps +to prevent other users on the same machine from reading it. + +The server DNS name (C below) must be the fully qualified hostname +— and the only hostname — that the client connects to. + + $ cat > server.info < +You don't need to create client certificates unless you want to check +and limit which clients can connect to nbdkit. nbdkit B +check client certificates unless you specify the I<--tls-verify-peer> +option on the command line. + +For each client you should generate a private key and a client +certificate: + + $ certtool --generate-privkey > client-key.pem + $ chmod 0600 client-key.pem + +The client key file is sensitive. + +The client DNS name (C below) is the client's name that nbdkit +sees and checks. + + $ cat > client.info < need to be present anywhere on the +nbdkit host. You don't need to copy them into nbdkit's TLS +certificates directory. The security comes from the fact that the +client must present a client certificate signed by the Certificate +Authority, and nbdkit can check this because it has the F +file. + +To enable checking of client certificates, specify the +I<--tls-verify-peer> option on the command line. Clients which don't +present a valid certificate (eg. not signed, incorrect signature) are +denied. Also denied are clients which present a valid certificate +signed by another CA. Also denied are clients with certificates added +to the certificate revocation list (F). + +=head2 TLS with Pre-Shared Keys (PSK) + +As a simpler alternative to TLS certificates, you may used pre-shared +keys to authenticate clients. + +Create a PSK file containing one or more C pairs. It is +easiest to use L for this: + + mkdir -m 0700 /tmp/keys + psktool -u rich -p /tmp/keys/keys.psk + +The PSK file contains the hex-encoded random keys in plaintext. Any +client which can read this file will be able to connect to the server. + +Use the nbdkit I<--tls-psk> option to start the server: + + nbdkit --tls=require --tls-psk=/tmp/keys/keys.psk -e / file disk.img + +This option overrides X.509 certificate authentication. + +Clients must supply one of the usernames in the PSK file and the +corresponding key in order to connect. An example of connecting using +L is: + + qemu-img info \ + --object tls-creds-psk,id=tls0,dir=/tmp/keys,username=rich,endpoint=client \ + --image-opts \ + file.driver=nbd,file.host=localhost,file.port=10809,file.tls-creds=tls0,file.export=/ + +=head2 Default TLS behaviour + +If nbdkit was compiled without GnuTLS support, then TLS is disabled +and TLS connections will be rejected (as if I<--tls=off> was specified +on the command line). Also it is impossible to turn on TLS in this +scenario. You can tell if nbdkit was compiled without GnuTLS support +because C will contain C. + +If TLS certificates cannot be loaded either from the built-in path or +from the directory specified by I<--tls-certificates>, then TLS +defaults to disabled. Turning TLS on will give a warning +(I<--tls=on>) or error (I<--tls=require>) about the missing +certificates. + +If TLS certificates can be loaded from the built-in path or from the +I<--tls-certificates> directory, then TLS will by default be enabled +(like I<--tls=on>), but it is not required. Clients can choose +whether or not to use TLS and whether or not to present certificates. + +TLS client certificates are I checked by default unless you +specify I<--tls-verify-peer>. + +If the I<--tls-psk> option is used then TLS is enabled (but I +required). To ensure that all clients are authorized you must use +I<--tls=require>. + +Each of these defaults is insecure to some extent (including +I<--tls=on> which could be subject to a downgrade attack), so if you +expect TLS then it is best to specify the I<--tls> option that you +require, and if you want to check client certificates, specify the +I<--tls-verify-peer> option. + +=head2 Choice of TLS algorithms + +TLS has a bewildering choice of algorithms that can be used. To +enable you to choose a default set of algorithms, there is a configure +setting C<--with-tls-priority>. This defaults to C which, to +quote the GnuTLS documentation: + +=over 4 + +"C means all C ciphersuites. The 256-bit ciphers are +included as a fallback only. The ciphers are sorted by security +margin." + +=back + +You could also set the TLS priority so that it can be configured from +a file at runtime: + + ./configure --with-tls-priority=@SYSTEM + +means use the policy from F. + + ./configure --with-tls-priority=@NBDKIT,SYSTEM + +means use the policy from +F and fall back to +F if the first file does not exist. + +More information can be found in L. + +=head1 SEE ALSO + +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +Pino Toscano + +=head1 COPYRIGHT + +Copyright (C) 2013-2018 Red Hat Inc. diff --git a/docs/nbdkit.pod b/docs/nbdkit.pod new file mode 100644 index 0000000..0c5ee40 --- /dev/null +++ b/docs/nbdkit.pod @@ -0,0 +1,625 @@ +=head1 NAME + +nbdkit - toolkit for creating NBD servers + +=head1 SYNOPSIS + +__SYNOPSIS__ + +=head1 DESCRIPTION + +Network Block Device (NBD) is a network protocol for accessing block +devices over the network. Block devices are hard disks and things +that behave like hard disks such as disk images and virtual machines. + +nbdkit is both a toolkit for creating NBD servers from +“unconventional” sources, and the name of an NBD server. nbdkit ships +with many plugins for performing common tasks like serving local +files. + +=head2 Plugins and filters + +nbdkit is different from other NBD servers because you can easily +create new Network Block Device sources by writing a few glue +functions, possibly in C, or perhaps in a high level language like +Perl or Python. The liberal licensing of nbdkit is meant to allow you +to link nbdkit with proprietary libraries or to include nbdkit in +proprietary code. + +If you want to write your own nbdkit plugin you should read +L. + +nbdkit also has a concept of filters which can be layered on top of +plugins. Several filters are provided with nbdkit and if you want to +write your own you should read L. + +=head1 EXAMPLES + +=head2 Basic file serving + +=over 4 + +=item * + +Serve file F on port 10809 using L, +and connect to it using L: + + nbdkit file disk.img + guestfish --rw --format=raw -a nbd://localhost + +=item * + +Serve file F on port 10809, requiring clients to use +encrypted (TLS) connections: + + nbdkit --tls=require file disk.img + +=back + +=head2 Other nbdkit plugins + +=over 4 + +=item * + +Create a 1MB disk with one empty partition entirely on the command +line using L: + + nbdkit data size=1M \ + data="@0x1b8 0xf8 0x21 0xdc 0xeb 0 0 0 0 + 2 0 0x83 0x20 0x20 0 1 0 0 0 0xff 0x7 + @0x1fe 0x55 0xaa" + +=item * + +Forward an NBD connection to a remote server over HTTPS or SSH using +L or L: + + nbdkit -r curl https://example.com/disk.img + + nbdkit ssh host=example.com /var/tmp/disk.img + +=item * + +Create a RAM disk using L: + + nbdkit memory size=64M + +=item * + +Create a floppy disk image containing files from a local directory +using L: + + nbdkit floppy dir/ + +=back + +=head2 Combining plugins and filters + +=over 4 + +=item * + +Serve only the first partition from compressed disk image +F, combining L, +L and L. + + nbdkit --filter=partition --filter=xz file disk.img.xz partition=1 + +To understand this command line: + + plugin name and plugin parameter + │ + ┌───────┴──────┐ + │ │ + nbdkit --filter=partition --filter=xz file disk.img.xz partition=1 + │ │ │ + └──────────────┴────┬─────────────────────┘ + │ + filters and filter parameter + +=item * + +Create a scratch, empty nbdkit device and inject errors and delays, +for testing clients, using L, +L and L: + + nbdkit --filter=error --filter=delay memory size=100M \ + error-rate=10% rdelay=1 wdelay=1 + +=back + +=head2 Writing plugins in scripting languages + +=over 4 + +=item * + +Write a simple, custom plugin entirely on the command line in shell +script using L: + + nbdkit sh - <<'EOF' + case "$1" in + get_size) echo 1M ;; + pread) dd if=/dev/zero count=$3 iflag=count_bytes ;; + *) exit 2 ;; + esac + EOF + +=back + +=head2 Display information + +Display information about nbdkit or a specific plugin: + + nbdkit --help + nbdkit --version + nbdkit --dump-config + nbdkit example1 --help + nbdkit example1 --dump-plugin + +=head1 GLOBAL OPTIONS + +=over 4 + +=item B<--help> + +Display brief command line usage information and exit. + +=item B<-D> PLUGIN.FLAG=N + +=item B<-D> FILTER.FLAG=N + +=item B<--debug> PLUGIN.FLAG=N + +=item B<--debug> FILTER.FLAG=N + +Set the plugin or filter Debug Flag called C to the integer +value C. See L. + +=item B<--dump-config> + +Dump out the compile-time configuration values and exit. +See L. + +=item B<--dump-plugin> + +Dump out information about the plugin and exit. +See L. + +=item B<--exit-with-parent> + +If the parent process exits, we exit. This can be used to avoid +complicated cleanup or orphaned nbdkit processes. There are some +important caveats with this, see L. + +An alternative to this is L. + +This option implies I<--foreground>. + +=item B<-e> EXPORTNAME + +=item B<--export> EXPORTNAME + +=item B<--export-name> EXPORTNAME + +=item B<--exportname> EXPORTNAME + +Set the exportname. + +If not set, exportname C<""> (empty string) is used. Exportnames are +not allowed with the oldstyle protocol. + +=item B<-f> + +=item B<--foreground> + +=item B<--no-fork> + +I fork into the background. + +=item B<--filter> FILTER + +Add a filter before the plugin. This option may be given one or more +times to stack filters in front of the plugin. They are processed in +the order they appear on the command line. See L and +L. + +=item B<-g> GROUP + +=item B<--group> GROUP + +Change group to C after starting up. A group name or numeric +group ID can be used. + +The server needs sufficient permissions to be able to do this. +Normally this would mean starting the server up as root. + +See also I<-u>. + +=item B<-i> IPADDR + +=item B<--ip-addr> IPADDR + +=item B<--ipaddr> IPADDR + +Listen on the specified interface. The default is to listen on all +interfaces. See also I<-p>. + +=item B<--log=stderr> + +=item B<--log=syslog> + +Send error messages to either standard error (I<--log=stderr>) or to +the system log (I<--log=syslog>). + +The default is to send error messages to stderr, unless nbdkit +forks into the background in which case they are sent to syslog. + +For more details see L. + +=item B<-n> + +=item B<--new-style> + +=item B<--newstyle> + +Use the newstyle NBD protocol protocol. This is the default in nbdkit +E 1.3. In earlier versions the default was oldstyle. +See L. + +=item B<-o> + +=item B<--old-style> + +=item B<--oldstyle> + +Use the oldstyle NBD protocol. This I the default in nbdkit +E 1.2, but now the default is newstyle. Note this is incompatible +with newer features such as export names and TLS. +See L. + +=item B<-P> PIDFILE + +=item B<--pid-file> PIDFILE + +=item B<--pidfile> PIDFILE + +Write C (containing the process ID of the server) after +nbdkit becomes ready to accept connections. + +If the file already exists, it is overwritten. nbdkit I +delete the file when it exits. + +=item B<-p> PORT + +=item B<--port> PORT + +Change the TCP/IP port number on which nbdkit serves requests. +The default is C<10809>. See also I<-i>. + +=item B<-r> + +=item B<--read-only> + +=item B<--readonly> + +The export will be read-only. If a client writes, then it will get an +error. + +Note that some plugins inherently don't support writes. With those +plugins the I<-r> option is added implicitly. + +L can be placed over read-only plugins to +provide copy-on-write (or "snapshot") functionality. If you are using +qemu as a client then it also supports snapshots. + +=item B<--run> CMD + +Run nbdkit as a captive subprocess of C. When C exits, +nbdkit is killed. See L. + +This option implies I<--foreground>. + +=item B<-s> + +=item B<--single> + +=item B<--stdin> + +Don't fork. Handle a single NBD connection on stdin/stdout. After +stdin closes, the server exits. + +You can use this option to run nbdkit from inetd or similar +superservers; or just for testing; or if you want to run nbdkit in a +non-conventional way. Note that if you want to run nbdkit from +systemd, then it may be better to use +L instead of this option. + +This option implies I<--foreground>. + +=item B<--selinux-label> SOCKET-LABEL + +Apply the SELinux label C to the nbdkit listening +socket. + +The common — perhaps only — use of this option is to allow libvirt +guests which are using SELinux and sVirt confinement to access nbdkit +Unix domain sockets: + + nbdkit --selinux-label system_u:object_r:svirt_t:s0 ... + +=item B<-t> THREADS + +=item B<--threads> THREADS + +Set the number of threads to be used per connection, which in turn +controls the number of outstanding requests that can be processed at +once. Only matters for plugins with thread_model=parallel (where it +defaults to 16). To force serialized behavior (useful if the client +is not prepared for out-of-order responses), set this to 1. + +=item B<--tls=off> + +=item B<--tls=on> + +=item B<--tls=require> + +Disable, enable or require TLS (authentication and encryption +support). See L. + +=item B<--tls-certificates> /path/to/certificates + +Set the path to the TLS certificates directory. If not specified, +some built-in paths are checked. See L for more +details. + +=item B<--tls-psk> /path/to/pskfile + +Set the path to the pre-shared keys (PSK) file. If used, this +overrides certificate authentication. There is no built-in path. See +L for more details. + +=item B<--tls-verify-peer> + +Enables TLS client certificate verification. The default is I to +check the client's certificate. + +=item B<-U> SOCKET + +=item B<--unix> SOCKET + +=item B<-U -> + +=item B<--unix -> + +Accept connections on the Unix domain socket C (which is a +path). + +nbdkit creates this socket, but it will probably have incorrect +permissions (too permissive). If it is a problem that some +unauthorized user could connect to this socket between the time that +nbdkit starts up and the authorized user connects, then put the socket +into a directory that has restrictive permissions. + +nbdkit does B delete the socket file when it exits. The caller +should delete the socket file after use (else if you try to start +nbdkit up again you will get an C
error). + +If the socket name is I<-> then nbdkit generates a randomly named +private socket. This is useful with L. + +=item B<-u> USER + +=item B<--user> USER + +Change user to C after starting up. A user name or numeric user +ID can be used. + +The server needs sufficient permissions to be able to do this. +Normally this would mean starting the server up as root. + +See also I<-g>. + +=item B<-v> + +=item B<--verbose> + +Enable verbose messages. + +It's a good idea to use I<-f> as well so the process does not fork +into the background (but not required). + +=item B<-V> + +=item B<--version> + +Print the version number of nbdkit and exit. + +=back + +=head1 PLUGIN NAME + +You can give the full path to the plugin, like this: + + nbdkit $libdir/nbdkit/plugins/nbdkit-file-plugin.so [...] + +but it is usually more convenient to use this equivalent syntax: + + nbdkit file [...] + +C<$libdir> is set at compile time. To print it out, do: + + nbdkit --dump-config + +=head1 PLUGIN CONFIGURATION + +After specifying the plugin name you can (optionally, it depends +on the plugin) give plugin configuration on the command line in +the form of C. For example: + + nbdkit file file=disk.img + +To list all the options supported by a plugin, do: + + nbdkit --help file + +To dump information about a plugin, do: + + nbdkit file --dump-plugin + +=head2 Magic parameters + +Some plugins declare a special "magic config key". This is a key +which is assumed if no C part is present. For example: + + nbdkit file disk.img + +is assumed to be C because the file plugin declares +C as its magic config key. There can be ambiguity in the +parsing of magic config keys if the value might look like a +C. If there could be ambiguity then modify the value, +eg. by prefixing it with C<./> + +There is also a special exception for plugins which do not declare a +magic config key, but where the first plugin argument does not contain +an C<'='> character: it is assumed to be C. This is +used by scripting language plugins: + + nbdkit perl foo.pl [args...] + +has the same meaning as: + + nbdkit perl script=foo.pl [args...] + +=head2 Shebang scripts + +You can use C<#!> to run nbdkit plugins written in most scripting +languages. The file should be executable. For example: + + #!/usr/sbin/nbdkit perl + sub open { + # etc + } + +(see L for a full example). + +=head1 SIGNALS + +nbdkit responds to the following signals: + +=over 4 + +=item C + +=item C + +=item C + +The server exits cleanly. + +=item C + +This signal is ignored. + +=back + +=head1 ENVIRONMENT VARIABLES + +=over 4 + +=item C + +=item C + +If present in the environment when nbdkit starts up, these trigger +L. + +=back + +=head1 SEE ALSO + +=head2 Other topics + +L — Run nbdkit under another process and have it +reliably cleaned up. + +L — Use nbdkit with the Linux kernel client to create +loop devices and loop mounts. + +L — How to probe for nbdkit configuration and plugins. + +L — Which parts of the NBD protocol nbdkit supports. + +L — Running nbdkit as a service, and systemd socket +activation. + +L — Authentication and encryption of NBD connections +(sometimes incorrectly called "SSL"). + +=head2 Plugins + +__PLUGIN_LINKS__. + +=head2 Filters + +__FILTER_LINKS__. + +=head2 For developers + +L, +L. + +=head2 Writing plugins in other programming languages + +__LANG_PLUGIN_LINKS__. + +=head2 NBD clients + +L, +L, +L. + +=head2 nbdkit links + +L — Source code. + +=head2 Other NBD servers + +L, +L, +L. + +=head2 Documentation for the NBD protocol + +L, +L. + +=head2 Similar protocols + +L, +L, +L. + +=head2 Other manual pages of interest + +L, +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +Yann E. MORIN + +Nir Soffer + +Pino Toscano + +=head1 COPYRIGHT + +Copyright (C) 2013-2018 Red Hat Inc. diff --git a/docs/synopsis.txt b/docs/synopsis.txt new file mode 100644 index 0000000..1a9d33d --- /dev/null +++ b/docs/synopsis.txt @@ -0,0 +1,22 @@ +nbdkit [-D|--debug PLUGIN|FILTER.FLAG=N] + [-e|--exportname EXPORTNAME] [--exit-with-parent] + [--filter FILTER ...] [-f|--foreground] + [-g|--group GROUP] [-i|--ipaddr IPADDR] + [--log stderr|syslog] + [-n|--newstyle] [-o|--oldstyle] + [-P|--pidfile PIDFILE] + [-p|--port PORT] [-r|--readonly] + [--run CMD] [-s|--single] [--selinux-label LABEL] + [-t|--threads THREADS] + [--tls off|on|require] + [--tls-certificates /path/to/certificates] + [--tls-psk /path/to/pskfile] [--tls-verify-peer] + [-U|--unix SOCKET] [-u|--user USER] + [-v|--verbose] [-V|--version] + PLUGIN [[KEY=]VALUE [KEY=VALUE [...]]] + +nbdkit --dump-config + +nbdkit PLUGIN --dump-plugin + +nbdkit --help diff --git a/filters/Makefile.am b/filters/Makefile.am new file mode 100644 index 0000000..987e88b --- /dev/null +++ b/filters/Makefile.am @@ -0,0 +1,36 @@ +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = filters.syms + +SUBDIRS = $(filters) diff --git a/filters/Makefile.in b/filters/Makefile.in new file mode 100644 index 0000000..535b7e6 --- /dev/null +++ b/filters/Makefile.in @@ -0,0 +1,768 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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uninstall-man1 + +.PRECIOUS: Makefile + + +@HAVE_POD_TRUE@nbdkit-blocksize-filter.1: nbdkit-blocksize-filter.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/blocksize/blocksize.c b/filters/blocksize/blocksize.c new file mode 100644 index 0000000..4f3e9a3 --- /dev/null +++ b/filters/blocksize/blocksize.c @@ -0,0 +1,409 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "minmax.h" +#include "rounding.h" + +/* XXX See design comment in filters/cow/cow.c. */ +#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS + +#define BLOCKSIZE_MIN_LIMIT (64U * 1024) + +/* As long as we don't have parallel requests, we can reuse a common + * buffer for alignment purposes; size it to the maximum we allow for + * minblock. */ +static char bounce[BLOCKSIZE_MIN_LIMIT]; +static unsigned int minblock; +static unsigned int maxdata; +static unsigned int maxlen; + +static int +blocksize_parse (const char *name, const char *s, unsigned int *v) +{ + int64_t size = nbdkit_parse_size (s); + + if (size < 0) + return -1; + if (!size) { + nbdkit_error ("parameter '%s' must be non-zero if specified", name); + return -1; + } + if (UINT_MAX < size) { + nbdkit_error ("parameter '%s' too large", name); + return -1; + } + *v = size; + return 0; +} + +/* Called for each key=value passed on the command line. */ +static int +blocksize_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + + if (strcmp (key, "minblock") == 0) + return blocksize_parse (key, value, &minblock); + if (strcmp (key, "maxdata") == 0) + return blocksize_parse (key, value, &maxdata); + if (strcmp (key, "maxlen") == 0) + return blocksize_parse (key, value, &maxlen); + return next (nxdata, key, value); +} + +/* Check that limits are sane. */ +static int +blocksize_config_complete (nbdkit_next_config_complete *next, void *nxdata) +{ + if (minblock) { + if (minblock & (minblock - 1)) { + nbdkit_error ("minblock must be a power of 2"); + return -1; + } + if (minblock > BLOCKSIZE_MIN_LIMIT) { + nbdkit_error ("minblock must not exceed %u", BLOCKSIZE_MIN_LIMIT); + return -1; + } + } + else + minblock = 1; + + if (maxdata) { + if (maxdata & (minblock - 1)) { + nbdkit_error ("maxdata must be a multiple of %u", minblock); + return -1; + } + } + else if (maxlen) + maxdata = MIN (maxlen, 64 * 1024 * 1024); + else + maxdata = 64 * 1024 * 1024; + + if (maxlen) { + if (maxlen & (minblock - 1)) { + nbdkit_error ("maxlen must be a multiple of %u", minblock); + return -1; + } + } + else + maxlen = -minblock; + + return next (nxdata); +} + +#define blocksize_config_help \ + "minblock= Minimum block size, power of 2 <= 64k (default 1).\n" \ + "maxdata= Maximum size for read/write (default 64M).\n" \ + "maxlen= Maximum size for trim/zero (default 4G-minblock)." + +static int +blocksize_prepare (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + /* Early call to get_size to ensure it doesn't truncate to 0. */ + int64_t size = next_ops->get_size (nxdata); + + if (size == -1) + return -1; + if (size < minblock) { + nbdkit_error ("disk is too small for minblock size %u", minblock); + return -1; + } + /* TODO: cache per-connection FUA mode? */ + return 0; +} + +static int64_t +blocksize_get_size (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + int64_t size = next_ops->get_size (nxdata); + + return size == -1 ? size : size & ~(minblock - 1); +} + +static int +blocksize_can_multi_conn (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + /* Although we are serializing all requests anyway so this likely + * doesn't make a difference, return false because the bounce buffer + * is not consistent for flush. + */ + return 0; +} + +static int +blocksize_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *b, uint32_t count, uint64_t offs, + uint32_t flags, int *err) +{ + char *buf = b; + uint32_t keep; + uint32_t drop; + + /* Unaligned head */ + if (offs & (minblock - 1)) { + drop = offs & (minblock - 1); + keep = MIN (minblock - drop, count); + if (next_ops->pread (nxdata, bounce, minblock, offs - drop, flags, + err) == -1) + return -1; + memcpy (buf, bounce + drop, keep); + buf += keep; + offs += keep; + count -= keep; + } + + /* Unaligned tail */ + if (count & (minblock - 1)) { + keep = count & (minblock - 1); + count -= keep; + if (next_ops->pread (nxdata, bounce, minblock, offs + count, flags, + err) == -1) + return -1; + memcpy (buf + count, bounce, keep); + } + + /* Aligned body */ + while (count) { + keep = MIN (maxdata, count); + if (next_ops->pread (nxdata, buf, keep, offs, flags, err) == -1) + return -1; + buf += keep; + offs += keep; + count -= keep; + } + + return 0; +} + +static int +blocksize_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, const void *b, uint32_t count, uint64_t offs, + uint32_t flags, int *err) +{ + const char *buf = b; + uint32_t keep; + uint32_t drop; + bool need_flush = false; + + if ((flags & NBDKIT_FLAG_FUA) && + next_ops->can_fua (nxdata) == NBDKIT_FUA_EMULATE) { + flags &= ~NBDKIT_FLAG_FUA; + need_flush = true; + } + + /* Unaligned head */ + if (offs & (minblock - 1)) { + drop = offs & (minblock - 1); + keep = MIN (minblock - drop, count); + if (next_ops->pread (nxdata, bounce, minblock, offs - drop, 0, err) == -1) + return -1; + memcpy (bounce + drop, buf, keep); + if (next_ops->pwrite (nxdata, bounce, minblock, offs - drop, flags, + err) == -1) + return -1; + buf += keep; + offs += keep; + count -= keep; + } + + /* Unaligned tail */ + if (count & (minblock - 1)) { + keep = count & (minblock - 1); + count -= keep; + if (next_ops->pread (nxdata, bounce, minblock, offs + count, 0, err) == -1) + return -1; + memcpy (bounce, buf + count, keep); + if (next_ops->pwrite (nxdata, bounce, minblock, offs + count, flags, + err) == -1) + return -1; + } + + /* Aligned body */ + while (count) { + keep = MIN (maxdata, count); + if (next_ops->pwrite (nxdata, buf, keep, offs, flags, err) == -1) + return -1; + buf += keep; + offs += keep; + count -= keep; + } + + if (need_flush) + return next_ops->flush (nxdata, 0, err); + return 0; +} + +static int +blocksize_trim (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + uint32_t keep; + bool need_flush = false; + + if ((flags & NBDKIT_FLAG_FUA) && + next_ops->can_fua (nxdata) == NBDKIT_FUA_EMULATE) { + flags &= ~NBDKIT_FLAG_FUA; + need_flush = true; + } + + /* Unaligned head */ + if (offs & (minblock - 1)) { + keep = MIN (minblock - (offs & (minblock - 1)), count); + offs += keep; + count -= keep; + } + + /* Unaligned tail */ + if (count & (minblock - 1)) + count -= count & (minblock - 1); + + /* Aligned body */ + while (count) { + keep = MIN (maxlen, count); + if (next_ops->trim (nxdata, keep, offs, flags, err) == -1) + return -1; + offs += keep; + count -= keep; + } + + if (need_flush) + return next_ops->flush (nxdata, 0, err); + return 0; +} + +static int +blocksize_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + uint32_t keep; + uint32_t drop; + bool need_flush = false; + + if ((flags & NBDKIT_FLAG_FUA) && + next_ops->can_fua (nxdata) == NBDKIT_FUA_EMULATE) { + flags &= ~NBDKIT_FLAG_FUA; + need_flush = true; + } + + /* Unaligned head */ + if (offs & (minblock - 1)) { + drop = offs & (minblock - 1); + keep = MIN (minblock - drop, count); + if (next_ops->pread (nxdata, bounce, minblock, offs - drop, 0, err) == -1) + return -1; + memset (bounce + drop, 0, keep); + if (next_ops->pwrite (nxdata, bounce, minblock, offs - drop, + flags & ~NBDKIT_FLAG_MAY_TRIM, err) == -1) + return -1; + offs += keep; + count -= keep; + } + + /* Unaligned tail */ + if (count & (minblock - 1)) { + keep = count & (minblock - 1); + count -= keep; + if (next_ops->pread (nxdata, bounce, minblock, offs + count, 0, err) == -1) + return -1; + memset (bounce, 0, keep); + if (next_ops->pwrite (nxdata, bounce, minblock, offs + count, + flags & ~NBDKIT_FLAG_MAY_TRIM, err) == -1) + return -1; + } + + /* Aligned body */ + while (count) { + keep = MIN (maxlen, count); + if (next_ops->zero (nxdata, keep, offs, flags, err) == -1) + return -1; + offs += keep; + count -= keep; + } + + if (need_flush) + return next_ops->flush (nxdata, 0, err); + return 0; +} + +static int +blocksize_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, struct nbdkit_extents *extents, int *err) +{ + /* Ask the plugin for blocksize-aligned data. Since the extents + * list start is set to the real offset, everything before the + * offset is ignored automatically. Also we only need to ask for + * maxlen of data, because it's fine to return less than the full + * count as long as we're making progress. + */ + return next_ops->extents (nxdata, + MIN (count, maxlen), + ROUND_DOWN (offset, minblock), + flags, extents, err); +} + +static struct nbdkit_filter filter = { + .name = "blocksize", + .longname = "nbdkit blocksize filter", + .version = PACKAGE_VERSION, + .config = blocksize_config, + .config_complete = blocksize_config_complete, + .config_help = blocksize_config_help, + .prepare = blocksize_prepare, + .get_size = blocksize_get_size, + .can_multi_conn = blocksize_can_multi_conn, + .pread = blocksize_pread, + .pwrite = blocksize_pwrite, + .trim = blocksize_trim, + .zero = blocksize_zero, + .extents = blocksize_extents, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/blocksize/nbdkit-blocksize-filter.pod b/filters/blocksize/nbdkit-blocksize-filter.pod new file mode 100644 index 0000000..0abed2f --- /dev/null +++ b/filters/blocksize/nbdkit-blocksize-filter.pod @@ -0,0 +1,99 @@ +=head1 NAME + +nbdkit-blocksize-filter - nbdkit blocksize filter + +=head1 SYNOPSIS + + nbdkit --filter=blocksize plugin [minblock=SIZE] [maxdata=SIZE] \ + [maxlen=SIZE] [plugin-args...] + +=head1 DESCRIPTION + +C is a filter that ensures various block size +limits are met on transactions presented to the plugin. The NBD +protocol permits clients to send requests with a granularity as small +as 1 byte or as large as nearly 4 gigabytes, although it suggests that +portable clients should align requests to 512 bytes and not exceed 32 +megabytes without prior coordination with the server. + +Meanwhile, some plugins require requests to be aligned to 512-byte +multiples, or may enforce a maximum transaction size to bound the time +or memory resources spent by any one command (note that nbdkit itself +refuses a read or write larger than 64 megabytes, while many other NBD +servers limit things to 32 megabytes). The blocksize filter can be +used to modify the client requests to meet the plugin restrictions. + +=head1 PARAMETERS + +The nbdkit-blocksize-filter accepts the following parameters. + +=over 4 + +=item BSIZE + +The minimum block size and alignment to pass to the plugin. This must +be a power of two, and no larger than 64k. If omitted, this defaults +to 1 (that is, no minimum size restrictions). The filter rounds up +read requests to alignment boundaries, performs read-modify-write +cycles for any unaligned head or tail of a write or zero request, and +silently ignores any unaligned head or tail of a trim request. The +filter also truncates the plugin size down to an aligned value (as it +cannot safely operate on the unaligned tail); it is an error if this +would result in a size of 0. + +This parameter understands the suffix 'k' for 1024. + +=item BSIZE + +The maximum block size for any single transaction with data (read and +write). If omitted, this defaults to 64 megabytes (that is, the +nbdkit maximum). This need not be a power of two, but must be an +integer multiple of C. The filter fragments any larger +client request into multiple plugin requests. + +This parameter understands the suffixes 'k', 'M', and 'G' for powers +of 1024. + +=item BSIZE + +The maximum length for any single transaction without data (trim, zero +or extents). If omitted, this defaults to 0xffffffff rounded down to +C alignment (that is, the inherent 32-bit limit of the NBD +protocol). This need not be a power of two, but must be an integer +multiple of C, and should be at least as large as +C. The filter fragments any larger client request into +multiple plugin requests. + +This parameter understands the suffixes 'k', 'M', and 'G' for powers +of 1024. + +=back + +=head1 EXAMPLES + +Allow an arbitrary client to use the VDDK plugin (which is limited to +512-byte blocks), without having to fix the client to avoid sending +unaligned requests: + + nbdkit --filter=blocksize vddk minblock=512 file=/absolute/path/to/file.vmdk + +Allow an arbitrary client tuned to nbdkit's 64 megabyte sizing to +connect to a remote server that insists on 32 megabyte sizing, via the +nbd plugin: + + nbdkit --filter=blocksize nbd maxdata=32M socket=/path/to/socket + +=head1 SEE ALSO + +L, +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/filters/cache/Makefile.am b/filters/cache/Makefile.am new file mode 100644 index 0000000..b463729 --- /dev/null +++ b/filters/cache/Makefile.am @@ -0,0 +1,71 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-cache-filter.pod + +filter_LTLIBRARIES = nbdkit-cache-filter.la + +nbdkit_cache_filter_la_SOURCES = \ + blk.c \ + blk.h \ + cache.c \ + cache.h \ + lru.c \ + lru.h \ + reclaim.c \ + reclaim.h \ + $(top_srcdir)/include/nbdkit-filter.h + +nbdkit_cache_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/bitmap \ + -I$(top_srcdir)/common/include +nbdkit_cache_filter_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_cache_filter_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms +nbdkit_cache_filter_la_LIBADD = \ + $(top_builddir)/common/bitmap/libbitmap.la + +if HAVE_POD + +man_MANS = nbdkit-cache-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-cache-filter.1: nbdkit-cache-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/cache/Makefile.in b/filters/cache/Makefile.in new file mode 100644 index 0000000..27072cb --- /dev/null +++ b/filters/cache/Makefile.in @@ -0,0 +1,927 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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mostlyclean-compile mostlyclean-generic \ + mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \ + uninstall-am uninstall-filterLTLIBRARIES uninstall-man \ + uninstall-man1 + +.PRECIOUS: Makefile + + +@HAVE_POD_TRUE@nbdkit-cache-filter.1: nbdkit-cache-filter.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/cache/blk.c b/filters/cache/blk.c new file mode 100644 index 0000000..acbed61 --- /dev/null +++ b/filters/cache/blk.c @@ -0,0 +1,291 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* These are the block operations. They always read or write a single + * whole block of size ‘blksize’. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "bitmap.h" +#include "minmax.h" + +#include "cache.h" +#include "blk.h" +#include "lru.h" +#include "reclaim.h" + +/* The cache. */ +static int fd = -1; + +/* Bitmap. There are two bits per block which are updated as we read, + * write back or write through blocks. + * + * 00 = not in cache + * 01 = block cached and clean + * 10 = + * 11 = block cached and dirty + * + * Future enhancement: + * + * We need to cache information about holes, ie. blocks which read as + * zeroes but are not explicitly stored in the cache. This + * information could be set when clients call cache_zero (and defer + * calling plugin->zero until flush). The information could also + * interact with extents, so when plugin->extents returns information + * that a hole exists we can record this information in the cache and + * not have to query the plugin a second time (especially useful for + * VDDK where querying extents is slow, and for qemu which [in 2019] + * repeatedly requests the same information with REQ_ONE set). + */ +static struct bitmap bm; + +enum bm_entry { + BLOCK_NOT_CACHED = 0, /* assumed to be zero by reclaim code */ + BLOCK_CLEAN = 1, + BLOCK_DIRTY = 3, +}; + +int +blk_init (void) +{ + const char *tmpdir; + size_t len; + char *template; + struct statvfs statvfs; + + tmpdir = getenv ("TMPDIR"); + if (!tmpdir) + tmpdir = LARGE_TMPDIR; + + nbdkit_debug ("cache: temporary directory for cache: %s", tmpdir); + + len = strlen (tmpdir) + 8; + template = alloca (len); + snprintf (template, len, "%s/XXXXXX", tmpdir); + +#ifdef HAVE_MKOSTEMP + fd = mkostemp (template, O_CLOEXEC); +#else + fd = mkstemp (template); + fcntl (fd, F_SETFD, FD_CLOEXEC); +#endif + if (fd == -1) { + nbdkit_error ("mkostemp: %s: %m", tmpdir); + return -1; + } + + unlink (template); + + /* Choose the block size. + * + * A 4K block size means that we need 64 MB of memory to store the + * bitmaps for a 1 TB underlying image. However to support + * hole-punching (for reclaiming) we need the block size to be at + * least as large as the filesystem block size. + */ + if (fstatvfs (fd, &statvfs) == -1) { + nbdkit_error ("fstatvfs: %s: %m", tmpdir); + return -1; + } + blksize = MAX (4096, statvfs.f_bsize); + nbdkit_debug ("cache: block size: %u", blksize); + + bitmap_init (&bm, blksize, 2 /* bits per block */); + + lru_init (); + + return 0; +} + +void +blk_free (void) +{ + if (fd >= 0) + close (fd); + + bitmap_free (&bm); + + lru_free (); +} + +int +blk_set_size (uint64_t new_size) +{ + if (bitmap_resize (&bm, new_size) == -1) + return -1; + + if (ftruncate (fd, new_size) == -1) { + nbdkit_error ("ftruncate: %m"); + return -1; + } + + if (lru_set_size (new_size) == -1) + return -1; + + return 0; +} + +int +blk_read (struct nbdkit_next_ops *next_ops, void *nxdata, + uint64_t blknum, uint8_t *block, int *err) +{ + off_t offset = blknum * blksize; + enum bm_entry state = bitmap_get_blk (&bm, blknum, BLOCK_NOT_CACHED); + + reclaim (fd, &bm); + + nbdkit_debug ("cache: blk_read block %" PRIu64 " (offset %" PRIu64 ") is %s", + blknum, (uint64_t) offset, + state == BLOCK_NOT_CACHED ? "not cached" : + state == BLOCK_CLEAN ? "clean" : + state == BLOCK_DIRTY ? "dirty" : + "unknown"); + + if (state == BLOCK_NOT_CACHED) { /* Read underlying plugin. */ + if (next_ops->pread (nxdata, block, blksize, offset, 0, err) == -1) + return -1; + + /* If cache-on-read, copy the block to the cache. */ + if (cache_on_read) { + off_t offset = blknum * blksize; + + nbdkit_debug ("cache: cache-on-read block %" PRIu64 + " (offset %" PRIu64 ")", + blknum, (uint64_t) offset); + + if (pwrite (fd, block, blksize, offset) == -1) { + *err = errno; + nbdkit_error ("pwrite: %m"); + return -1; + } + bitmap_set_blk (&bm, blknum, BLOCK_CLEAN); + lru_set_recently_accessed (blknum); + } + return 0; + } + else { /* Read cache. */ + if (pread (fd, block, blksize, offset) == -1) { + *err = errno; + nbdkit_error ("pread: %m"); + return -1; + } + lru_set_recently_accessed (blknum); + return 0; + } +} + +int +blk_writethrough (struct nbdkit_next_ops *next_ops, void *nxdata, + uint64_t blknum, const uint8_t *block, uint32_t flags, + int *err) +{ + off_t offset = blknum * blksize; + + reclaim (fd, &bm); + + nbdkit_debug ("cache: writethrough block %" PRIu64 " (offset %" PRIu64 ")", + blknum, (uint64_t) offset); + + if (pwrite (fd, block, blksize, offset) == -1) { + *err = errno; + nbdkit_error ("pwrite: %m"); + return -1; + } + + if (next_ops->pwrite (nxdata, block, blksize, offset, flags, err) == -1) + return -1; + + bitmap_set_blk (&bm, blknum, BLOCK_CLEAN); + lru_set_recently_accessed (blknum); + + return 0; +} + +int +blk_write (struct nbdkit_next_ops *next_ops, void *nxdata, + uint64_t blknum, const uint8_t *block, uint32_t flags, + int *err) +{ + off_t offset; + + if (cache_mode == CACHE_MODE_WRITETHROUGH || + (cache_mode == CACHE_MODE_WRITEBACK && (flags & NBDKIT_FLAG_FUA))) + return blk_writethrough (next_ops, nxdata, blknum, block, flags, err); + + offset = blknum * blksize; + + reclaim (fd, &bm); + + nbdkit_debug ("cache: writeback block %" PRIu64 " (offset %" PRIu64 ")", + blknum, (uint64_t) offset); + + if (pwrite (fd, block, blksize, offset) == -1) { + *err = errno; + nbdkit_error ("pwrite: %m"); + return -1; + } + bitmap_set_blk (&bm, blknum, BLOCK_DIRTY); + lru_set_recently_accessed (blknum); + + return 0; +} + +int +for_each_dirty_block (block_callback f, void *vp) +{ + uint64_t blknum; + enum bm_entry state; + + bitmap_for (&bm, blknum) { + state = bitmap_get_blk (&bm, blknum, BLOCK_NOT_CACHED); + if (state == BLOCK_DIRTY) { + if (f (blknum, vp) == -1) + return -1; + } + } + + return 0; +} diff --git a/filters/cache/blk.h b/filters/cache/blk.h new file mode 100644 index 0000000..974a118 --- /dev/null +++ b/filters/cache/blk.h @@ -0,0 +1,81 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_BLK_H +#define NBDKIT_BLK_H + +/* Initialize the cache and bitmap. */ +extern int blk_init (void); + +/* Close the cache, free the bitmap. */ +extern void blk_free (void); + +/*---------------------------------------------------------------------- + * ** NOTE ** + * + * An exclusive lock must be held when you call any function below + * this line. + */ + +/* Allocate or resize the cache file and bitmap. */ +extern int blk_set_size (uint64_t new_size); + +/* Read a single block from the cache or plugin. */ +extern int blk_read (struct nbdkit_next_ops *next_ops, void *nxdata, + uint64_t blknum, uint8_t *block, int *err) + __attribute__((__nonnull__ (1, 4, 5))); + +/* Write to the cache and the plugin. */ +extern int blk_writethrough (struct nbdkit_next_ops *next_ops, void *nxdata, + uint64_t blknum, const uint8_t *block, + uint32_t flags, int *err) + __attribute__((__nonnull__ (1, 4, 6))); + +/* Write a whole block. + * + * If the cache is in writethrough mode, or the FUA flag is set, then + * this calls blk_writethrough above which will write both to the + * cache and through to the underlying device. + * + * Otherwise it will only write to the cache. + */ +extern int blk_write (struct nbdkit_next_ops *next_ops, void *nxdata, + uint64_t blknum, const uint8_t *block, + uint32_t flags, int *err) + __attribute__((__nonnull__ (1, 4, 6))); + +/* Iterates over each dirty block in the cache. */ +typedef int (*block_callback) (uint64_t blknum, void *vp); +extern int for_each_dirty_block (block_callback f, void *vp) + __attribute__((__nonnull__ (1))); + +#endif /* NBDKIT_BLK_H */ diff --git a/filters/cache/cache.c b/filters/cache/cache.c new file mode 100644 index 0000000..9a645c5 --- /dev/null +++ b/filters/cache/cache.c @@ -0,0 +1,495 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#ifdef HAVE_ALLOCA_H +#include +#endif + +#include + +#include "cache.h" +#include "blk.h" +#include "reclaim.h" + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + +/* In order to handle parallel requests safely, this lock must be held + * when calling any blk_* functions. + */ +static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; + +unsigned blksize; +enum cache_mode cache_mode = CACHE_MODE_WRITEBACK; +int64_t max_size = -1; +int hi_thresh = 95, lo_thresh = 80; +bool cache_on_read = false; + +static int cache_flush (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle, uint32_t flags, int *err); + +static void +cache_load (void) +{ + if (blk_init () == -1) + exit (EXIT_FAILURE); +} + +static void +cache_unload (void) +{ + blk_free (); +} + +static int +cache_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "cache") == 0) { + if (strcmp (value, "writeback") == 0) { + cache_mode = CACHE_MODE_WRITEBACK; + return 0; + } + else if (strcmp (value, "writethrough") == 0) { + cache_mode = CACHE_MODE_WRITETHROUGH; + return 0; + } + else if (strcmp (value, "unsafe") == 0) { + cache_mode = CACHE_MODE_UNSAFE; + return 0; + } + else { + nbdkit_error ("invalid cache parameter, should be " + "writeback|writethrough|unsafe"); + return -1; + } + } +#ifdef HAVE_CACHE_RECLAIM + else if (strcmp (key, "cache-max-size") == 0) { + int64_t r; + + r = nbdkit_parse_size (value); + if (r == -1) + return -1; + /* We set a lower limit for the cache size just to keep out of + * trouble. + */ + if (r < 1024*1024) { + nbdkit_error ("cache-max-size is too small"); + return -1; + } + max_size = r; + return 0; + } + else if (strcmp (key, "cache-high-threshold") == 0) { + if (sscanf (value, "%d", &hi_thresh) != 1) { + nbdkit_error ("invalid cache-high-threshold parameter: %s", value); + return -1; + } + if (hi_thresh <= 0) { + nbdkit_error ("cache-high-threshold must be greater than zero"); + return -1; + } + return 0; + } + else if (strcmp (key, "cache-low-threshold") == 0) { + if (sscanf (value, "%d", &lo_thresh) != 1) { + nbdkit_error ("invalid cache-low-threshold parameter: %s", value); + return -1; + } + if (lo_thresh <= 0) { + nbdkit_error ("cache-low-threshold must be greater than zero"); + return -1; + } + return 0; + } +#else /* !HAVE_CACHE_RECLAIM */ + else if (strcmp (key, "cache-max-size") == 0 || + strcmp (key, "cache-high-threshold") == 0 || + strcmp (key, "cache-low-threshold") == 0) { + nbdkit_error ("this platform does not support cache reclaim"); + return -1; + } +#endif /* !HAVE_CACHE_RECLAIM */ + else if (strcmp (key, "cache-on-read") == 0) { + int r; + + r = nbdkit_parse_bool (value); + if (r == -1) + return -1; + cache_on_read = r; + return 0; + } + else { + return next (nxdata, key, value); + } +} + +static int +cache_config_complete (nbdkit_next_config_complete *next, void *nxdata) +{ + /* If cache-max-size was set then check the thresholds. */ + if (max_size != -1) { + if (lo_thresh >= hi_thresh) { + nbdkit_error ("cache-low-threshold must be " + "less than cache-high-threshold"); + return -1; + } + } + + return next (nxdata); +} + +static void * +cache_open (nbdkit_next_open *next, void *nxdata, int readonly) +{ + if (next (nxdata, readonly) == -1) + return NULL; + + return NBDKIT_HANDLE_NOT_NEEDED; +} + +/* Get the file size and ensure the cache is the correct size. */ +static int64_t +cache_get_size (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + int64_t size; + int r; + + size = next_ops->get_size (nxdata); + if (size == -1) + return -1; + + nbdkit_debug ("cache: underlying file size: %" PRIi64, size); + + pthread_mutex_lock (&lock); + r = blk_set_size (size); + pthread_mutex_unlock (&lock); + if (r == -1) + return -1; + + return size; +} + +/* Force an early call to cache_get_size, consequently truncating the + * cache to the correct size. + */ +static int +cache_prepare (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + int64_t r; + + r = cache_get_size (next_ops, nxdata, handle); + if (r < 0) + return -1; + /* TODO: cache per-connection FUA mode? */ + return 0; +} + +/* Read data. */ +static int +cache_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + uint8_t *block; + + assert (!flags); + block = malloc (blksize); + if (block == NULL) { + *err = errno; + nbdkit_error ("malloc: %m"); + return -1; + } + + /* XXX This breaks up large read requests into smaller ones, which + * is a problem for plugins which have a large, fixed per-request + * overhead (hello, curl). We should try to keep large requests + * together as much as possible, but that requires us to be much + * smarter here. + */ + while (count > 0) { + uint64_t blknum, blkoffs, n; + int r; + + blknum = offset / blksize; /* block number */ + blkoffs = offset % blksize; /* offset within the block */ + n = blksize - blkoffs; /* max bytes we can read from this block */ + if (n > count) + n = count; + + pthread_mutex_lock (&lock); + r = blk_read (next_ops, nxdata, blknum, block, err); + pthread_mutex_unlock (&lock); + if (r == -1) { + free (block); + return -1; + } + + memcpy (buf, &block[blkoffs], n); + + buf += n; + count -= n; + offset += n; + } + + free (block); + return 0; +} + +/* Write data. */ +static int +cache_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, const void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + uint8_t *block; + bool need_flush = false; + + block = malloc (blksize); + if (block == NULL) { + *err = errno; + nbdkit_error ("malloc: %m"); + return -1; + } + + if ((flags & NBDKIT_FLAG_FUA) && + next_ops->can_fua (nxdata) == NBDKIT_FUA_EMULATE) { + flags &= ~NBDKIT_FLAG_FUA; + need_flush = true; + } + while (count > 0) { + uint64_t blknum, blkoffs, n; + int r; + + blknum = offset / blksize; /* block number */ + blkoffs = offset % blksize; /* offset within the block */ + n = blksize - blkoffs; /* max bytes we can read from this block */ + if (n > count) + n = count; + + /* Do a read-modify-write operation on the current block. + * Hold the lock over the whole operation. + */ + pthread_mutex_lock (&lock); + r = blk_read (next_ops, nxdata, blknum, block, err); + if (r != -1) { + memcpy (&block[blkoffs], buf, n); + r = blk_write (next_ops, nxdata, blknum, block, flags, err); + } + pthread_mutex_unlock (&lock); + if (r == -1) { + free (block); + return -1; + } + + buf += n; + count -= n; + offset += n; + } + + free (block); + if (need_flush) + return cache_flush (next_ops, nxdata, handle, 0, err); + return 0; +} + +/* Zero data. */ +static int +cache_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + uint8_t *block; + bool need_flush = false; + + block = malloc (blksize); + if (block == NULL) { + *err = errno; + nbdkit_error ("malloc: %m"); + return -1; + } + + flags &= ~NBDKIT_FLAG_MAY_TRIM; + if ((flags & NBDKIT_FLAG_FUA) && + next_ops->can_fua (nxdata) == NBDKIT_FUA_EMULATE) { + flags &= ~NBDKIT_FLAG_FUA; + need_flush = true; + } + while (count > 0) { + uint64_t blknum, blkoffs, n; + int r; + + blknum = offset / blksize; /* block number */ + blkoffs = offset % blksize; /* offset within the block */ + n = blksize - blkoffs; /* max bytes we can read from this block */ + if (n > count) + n = count; + + /* Do a read-modify-write operation on the current block. + * Hold the lock over the whole operation. + */ + pthread_mutex_lock (&lock); + r = blk_read (next_ops, nxdata, blknum, block, err); + if (r != -1) { + memset (&block[blkoffs], 0, n); + r = blk_write (next_ops, nxdata, blknum, block, flags, err); + } + pthread_mutex_unlock (&lock); + if (r == -1) { + free (block); + return -1; + } + + count -= n; + offset += n; + } + + free (block); + if (need_flush) + return cache_flush (next_ops, nxdata, handle, 0, err); + return 0; +} + +/* Flush: Go through all the dirty blocks, flushing them to disk. */ +struct flush_data { + uint8_t *block; /* bounce buffer */ + unsigned errors; /* count of errors seen */ + int first_errno; /* first errno seen */ + struct nbdkit_next_ops *next_ops; + void *nxdata; +}; + +static int flush_dirty_block (uint64_t blknum, void *); + +static int +cache_flush (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle, + uint32_t flags, int *err) +{ + struct flush_data data = + { .errors = 0, .first_errno = 0, .next_ops = next_ops, .nxdata = nxdata }; + int tmp; + + if (cache_mode == CACHE_MODE_UNSAFE) + return 0; + + assert (!flags); + + /* Allocate the bounce buffer. */ + data.block = malloc (blksize); + if (data.block == NULL) { + *err = errno; + nbdkit_error ("malloc: %m"); + return -1; + } + + /* In theory if cache_mode == CACHE_MODE_WRITETHROUGH then there + * should be no dirty blocks. However we go through the cache here + * to be sure. Also we still need to issue the flush to the + * underlying storage. + */ + pthread_mutex_lock (&lock); + for_each_dirty_block (flush_dirty_block, &data); + pthread_mutex_unlock (&lock); + free (data.block); + + /* Now issue a flush request to the underlying storage. */ + if (next_ops->flush (nxdata, 0, + data.errors ? &tmp : &data.first_errno) == -1) + data.errors++; + + if (data.errors > 0) { + *err = data.first_errno; + return -1; + } + return 0; +} + +static int +flush_dirty_block (uint64_t blknum, void *datav) +{ + struct flush_data *data = datav; + int tmp; + + /* Perform a read + writethrough which will read from the + * cache and write it through to the underlying storage. + */ + if (blk_read (data->next_ops, data->nxdata, blknum, data->block, + data->errors ? &tmp : &data->first_errno) == -1) + goto err; + if (blk_writethrough (data->next_ops, data->nxdata, blknum, data->block, 0, + data->errors ? &tmp : &data->first_errno) == -1) + goto err; + + return 0; + + err: + nbdkit_error ("cache: flush of block %" PRIu64 " failed", blknum); + data->errors++; + return 0; /* continue scanning and flushing. */ +} + +static struct nbdkit_filter filter = { + .name = "cache", + .longname = "nbdkit caching filter", + .version = PACKAGE_VERSION, + .load = cache_load, + .unload = cache_unload, + .config = cache_config, + .config_complete = cache_config_complete, + .open = cache_open, + .prepare = cache_prepare, + .get_size = cache_get_size, + .pread = cache_pread, + .pwrite = cache_pwrite, + .zero = cache_zero, + .flush = cache_flush, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/cache/cache.h b/filters/cache/cache.h new file mode 100644 index 0000000..c67e173 --- /dev/null +++ b/filters/cache/cache.h @@ -0,0 +1,55 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_CACHE_H +#define NBDKIT_CACHE_H + +#include + +/* Caching mode. */ +extern enum cache_mode { + CACHE_MODE_WRITEBACK, + CACHE_MODE_WRITETHROUGH, + CACHE_MODE_UNSAFE, +} cache_mode; + +/* Size of a block in the cache. */ +extern unsigned blksize; + +/* Maximum size of the cache and high/low thresholds. */ +extern int64_t max_size; +extern int hi_thresh, lo_thresh; + +/* Cache read requests. */ +extern bool cache_on_read; + +#endif /* NBDKIT_CACHE_H */ diff --git a/filters/cache/lru.c b/filters/cache/lru.c new file mode 100644 index 0000000..1c3c3e1 --- /dev/null +++ b/filters/cache/lru.c @@ -0,0 +1,152 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* These are the block operations. They always read or write a single + * whole block of size ‘blksize’. + */ + +#include + +#include +#include +#include +#include +#include + +#include + +#include "bitmap.h" +#include "minmax.h" + +#include "cache.h" +#include "blk.h" +#include "lru.h" + +/* LRU bitmaps. These bitmaps implement a simple, fast LRU structure. + * + * bm[0] bm[1] blocks not in either bitmap + * ┌─────────┬──────────────────┬─────────────────────────────┐ + * │ │ │ │ + * └─────────┴──────────────────┴─────────────────────────────┘ + * ↑ c1 bits set + * c0 bits set + * + * The LRU structure keeps track of the [approx] last N distinct + * blocks which have been most recently accessed. It can answer in + * O(1) time the question: “Is a particular block in or not in the N + * distinct blocks most recently accessed?” + * + * To do this we keep two bitmaps. + * + * When a new block is accessed, we set the corresponding bit in bm[0] + * and increment c0 (c0 counts the number of bits set in bm[0]). If + * c0 == N/2 then we swap the two bitmaps, clear bm[0], and reset c0 + * to 0. + * + * To check if a block has been accessed within the previous N + * distinct accesses, we simply have to check both bitmaps. If it is + * not in either bitmap, then it's old and a candidate to be + * reclaimed. + * + * You'll note that in fact we only keep track of between N/2 and N + * recently accessed blocks. We could make the estimate more accurate + * by having more bitmaps, but as this is only a heuristic we choose + * to keep the implementation simple and memory usage low instead. + */ +static struct bitmap bm[2]; +static unsigned c0 = 0, c1 = 0; +static unsigned N = 100; + +void +lru_init (void) +{ + bitmap_init (&bm[0], blksize, 1 /* bits per block */); + bitmap_init (&bm[1], blksize, 1 /* bits per block */); +} + +void +lru_free (void) +{ + bitmap_free (&bm[0]); + bitmap_free (&bm[1]); +} + +int +lru_set_size (uint64_t new_size) +{ + if (bitmap_resize (&bm[0], new_size) == -1) + return -1; + if (bitmap_resize (&bm[1], new_size) == -1) + return -1; + + if (max_size != -1) + /* Make the threshold about 1/4 the maximum size of the cache. */ + N = MAX (max_size / blksize / 4, 100); + else + N = MAX (new_size / blksize / 4, 100); + + return 0; +} + +void +lru_set_recently_accessed (uint64_t blknum) +{ + /* If the block is already set in the first bitmap, don't need to do + * anything. + */ + if (bitmap_get_blk (&bm[0], blknum, false)) + return; + + bitmap_set_blk (&bm[0], blknum, true); + c0++; + + /* If we've reached N/2 then we need to swap over the bitmaps. */ + if (c0 >= N/2) { + struct bitmap tmp; + + tmp = bm[0]; + bm[0] = bm[1]; + bm[1] = tmp; + c1 = c0; + + bitmap_clear (&bm[0]); + c0 = 0; + } +} + +bool +lru_has_been_recently_accessed (uint64_t blknum) +{ + return + bitmap_get_blk (&bm[0], blknum, false) || + bitmap_get_blk (&bm[1], blknum, false); +} diff --git a/filters/cache/lru.h b/filters/cache/lru.h new file mode 100644 index 0000000..673f39e --- /dev/null +++ b/filters/cache/lru.h @@ -0,0 +1,53 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_LRU_H +#define NBDKIT_LRU_H + +#include + +/* Initialize LRU. */ +extern void lru_init (void); + +/* Free the LRU. */ +extern void lru_free (void); + +/* Notify LRU that the virtual size has changed. */ +extern int lru_set_size (uint64_t new_size); + +/* Mark a block as recently accessed in the LRU structure. */ +extern void lru_set_recently_accessed (uint64_t blknum); + +/* Check if a block has been recently accessed. */ +extern bool lru_has_been_recently_accessed (uint64_t blknum); + +#endif /* NBDKIT_LRU_H */ diff --git a/filters/cache/nbdkit-cache-filter.pod b/filters/cache/nbdkit-cache-filter.pod new file mode 100644 index 0000000..431a720 --- /dev/null +++ b/filters/cache/nbdkit-cache-filter.pod @@ -0,0 +1,150 @@ +=head1 NAME + +nbdkit-cache-filter - nbdkit caching filter + +=head1 SYNOPSIS + + nbdkit --filter=cache plugin [cache=writeback|writethrough|unsafe] + [cache-max-size=SIZE] + [cache-high-threshold=N] + [cache-low-threshold=N] + [cache-on-read=true|false] + [plugin-args...] + +=head1 DESCRIPTION + +C is a filter that adds caching on top of a +plugin. This is useful if a plugin is slow or expensive to use, +because nbdkit will try to minimize requests to the plugin by caching +previous requests. + +Note that many NBD I are able to do caching, and because the +caching happens on the client side it will usually be more effective +than caching inside the server. This filter can be used if the client +does not have effective caching, or (with C) to defeat +flush requests from the client (which is unsafe and can cause data +loss, as the name suggests). + +=head1 PARAMETERS + +=over 4 + +=item B + +Store writes in the cache. They are not written to the plugin unless +an explicit flush is done by the client. + +This is the default caching mode, and is safe if your client issues +flush requests correctly (which is true for modern Linux and other +well-written NBD clients). + +=item B + +Always force writes through to the plugin. + +This makes the cache less effective, but is necessary if your client +does not issue correct flush requests. + +=item B + +Ignore flush requests. Never write to the plugin unless the cache +grows too large. + +This is dangerous and can cause data loss, but this may be acceptable +if you only use it for testing or with data that you don't care about +or can cheaply reconstruct. + +=item B + +=item B + +=item B + +Limit the size of the cache to C. See L below. + +=item B + +Cache read requests as well as write requests. Any time a block is +read from the plugin, it is saved in the cache (if there is sufficient +space) so the same data can be served more quickly later. + +Note that if the underlying data served by the plugin can be modified +by some other means (eg. something else can write to a file which is +being served by L), this option will cause +nbdkit to serve stale data because reads won't always go through to +the plugin. + +=item B + +Do not cache read requests (this is the default). + +=back + +=head1 CACHE MAXIMUM SIZE + +By default the cache can grow to any size (although not larger than +the virtual size of the underlying plugin) and you have to ensure +there is sufficient space in C<$TMPDIR> for it. + +Using the parameters C, C and +C you can limit the maximum size of the cache. + +This requires kernel and filesystem support (for L +C), so it may not work on all platforms. + +Some examples: + +=over 4 + +=item C + +The cache is limited to around 1 gigabyte. + +=item C + +Once the cache size reaches 972M (95% of 1G), blocks are reclaimed +from the cache until the size is reduced to 819M (80% of 1G). + +=back + +The way this works is once the size of the cache exceeds +S ✕ the high threshold>, the filter works to reduce the size +of the cache until it is less than S ✕ the low threshold>. +Once the size is below the low threshold, no more reclaim work is done +until the size exceeds the high threshold again. + +The default thresholds are high 95% and low 80%. You must set +S<0 E low E high>. The thresholds are expressed as integer +percentages of C. + +Least recently used blocks are discarded first. + +=head1 ENVIRONMENT VARIABLES + +=over 4 + +=item C + +The cache is stored in a temporary file located in F by +default. You can override this location by setting the C +environment variable before starting nbdkit. + +=back + +=head1 SEE ALSO + +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/filters/cache/reclaim.c b/filters/cache/reclaim.c new file mode 100644 index 0000000..f050c14 --- /dev/null +++ b/filters/cache/reclaim.c @@ -0,0 +1,206 @@ +/* nbdkit + * Copyright (C) 2018-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "bitmap.h" + +#include "cache.h" +#include "reclaim.h" +#include "lru.h" + +#ifndef HAVE_CACHE_RECLAIM + +void +reclaim (int fd, struct bitmap *bm) +{ + /* nothing */ +} + +#else /* HAVE_CACHE_RECLAIM */ + +/* If we are currently reclaiming blocks from the cache. + * + * The state machine starts in the NOT_RECLAIMING state. When the + * size of the cache exceeds the high threshold, we move to + * RECLAIMING_LRU. Once we have exhausted all LRU blocks, we move to + * RECLAIMING_ANY (reclaiming any blocks). + * + * If at any time the size of the cache goes below the low threshold + * we move back to the NOT_RECLAIMING state. + * + * A possible future enhancement is to add an extra state between LRU + * and ANY which reclaims blocks from lru.c:bm[1]. + * + * reclaim_blk is the last block that we looked at. + */ +enum reclaim_state { + NOT_RECLAIMING = 0, + RECLAIMING_LRU = 1, + RECLAIMING_ANY = 2, +}; + +static enum reclaim_state reclaiming = NOT_RECLAIMING; +static uint64_t reclaim_blk; + +static void reclaim_one (int fd, struct bitmap *bm); +static void reclaim_lru (int fd, struct bitmap *bm); +static void reclaim_any (int fd, struct bitmap *bm); +static void reclaim_block (int fd, struct bitmap *bm); + +void +reclaim (int fd, struct bitmap *bm) +{ + struct stat statbuf; + uint64_t cache_allocated; + + /* If the user didn't set cache-max-size, do nothing. */ + if (max_size == -1) return; + + /* Check the allocated size of the cache. */ + if (fstat (fd, &statbuf) == -1) { + nbdkit_debug ("cache: fstat: %m"); + return; + } + cache_allocated = statbuf.st_blocks * UINT64_C(512); + + if (reclaiming) { + /* Keep reclaiming until the cache size drops below the low threshold. */ + if (cache_allocated < max_size * lo_thresh / 100) { + nbdkit_debug ("cache: stop reclaiming"); + reclaiming = NOT_RECLAIMING; + return; + } + } + else { + if (cache_allocated < max_size * hi_thresh / 100) + return; + + /* Start reclaiming if the cache size goes over the high threshold. */ + nbdkit_debug ("cache: start reclaiming"); + reclaiming = RECLAIMING_LRU; + } + + /* Reclaim up to 2 cache blocks. */ + reclaim_one (fd, bm); + reclaim_one (fd, bm); +} + +/* Reclaim a single cache block. */ +static void +reclaim_one (int fd, struct bitmap *bm) +{ + assert (reclaiming); + + if (reclaiming == RECLAIMING_LRU) + reclaim_lru (fd, bm); + else + reclaim_any (fd, bm); +} + +static void +reclaim_lru (int fd, struct bitmap *bm) +{ + uint64_t old_reclaim_blk; + + /* Find the next block in the cache. */ + reclaim_blk = bitmap_next (bm, reclaim_blk+1); + old_reclaim_blk = reclaim_blk; + + /* Search for an LRU block after this one. */ + do { + if (! lru_has_been_recently_accessed (reclaim_blk)) { + reclaim_block (fd, bm); + return; + } + + reclaim_blk = bitmap_next (bm, reclaim_blk+1); + if (reclaim_blk == -1) /* wrap around */ + reclaim_blk = bitmap_next (bm, 0); + } while (reclaim_blk >= 0 && old_reclaim_blk != reclaim_blk); + + if (old_reclaim_blk == reclaim_blk) { + /* Run out of LRU blocks, so start reclaiming any block in the cache. */ + nbdkit_debug ("cache: reclaiming any blocks"); + reclaiming = RECLAIMING_ANY; + reclaim_any (fd, bm); + } +} + +static void +reclaim_any (int fd, struct bitmap *bm) +{ + /* Find the next block in the cache. */ + reclaim_blk = bitmap_next (bm, reclaim_blk+1); + if (reclaim_blk == -1) /* wrap around */ + reclaim_blk = bitmap_next (bm, 0); + + reclaim_block (fd, bm); +} + +static void +reclaim_block (int fd, struct bitmap *bm) +{ + if (reclaim_blk == -1) { + nbdkit_debug ("cache: run out of blocks to reclaim!"); + return; + } + + nbdkit_debug ("cache: reclaiming block %" PRIu64, reclaim_blk); +#ifdef FALLOC_FL_PUNCH_HOLE + if (fallocate (fd, FALLOC_FL_PUNCH_HOLE|FALLOC_FL_KEEP_SIZE, + reclaim_blk * blksize, blksize) == -1) { + nbdkit_error ("cache: reclaiming cache blocks: " + "fallocate: FALLOC_FL_PUNCH_HOLE: %m"); + return; + } +#else +#error "no implementation for punching holes" +#endif + + bitmap_set_blk (bm, reclaim_blk, 0); +} + +#endif /* HAVE_CACHE_RECLAIM */ diff --git a/filters/cache/reclaim.h b/filters/cache/reclaim.h new file mode 100644 index 0000000..c0b4db5 --- /dev/null +++ b/filters/cache/reclaim.h @@ -0,0 +1,52 @@ +/* nbdkit + * Copyright (C) 2018-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_RECLAIM_H +#define NBDKIT_RECLAIM_H + +#include "bitmap.h" + +/* Do we support reclaiming cache blocks? */ +#ifdef FALLOC_FL_PUNCH_HOLE +#define HAVE_CACHE_RECLAIM 1 +#else +#undef HAVE_CACHE_RECLAIM +#endif + +/* Check if we need to reclaim blocks, and if so reclaim up to two + * blocks. + * + * Note this must be called with the blk lock held. + */ +extern void reclaim (int fd, struct bitmap *bm); + +#endif /* NBDKIT_RECLAIM_H */ diff --git a/filters/cow/Makefile.am b/filters/cow/Makefile.am new file mode 100644 index 0000000..5f35732 --- /dev/null +++ b/filters/cow/Makefile.am @@ -0,0 +1,66 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-cow-filter.pod + +filter_LTLIBRARIES = nbdkit-cow-filter.la + +nbdkit_cow_filter_la_SOURCES = \ + blk.c \ + blk.h \ + cow.c \ + $(top_srcdir)/include/nbdkit-filter.h + +nbdkit_cow_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/bitmap \ + -I$(top_srcdir)/common/include +nbdkit_cow_filter_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_cow_filter_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms +nbdkit_cow_filter_la_LIBADD = \ + $(top_builddir)/common/bitmap/libbitmap.la + +if HAVE_POD + +man_MANS = nbdkit-cow-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-cow-filter.1: nbdkit-cow-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/cow/Makefile.in b/filters/cow/Makefile.in new file mode 100644 index 0000000..1aae9b5 --- /dev/null +++ b/filters/cow/Makefile.in @@ -0,0 +1,899 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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+maintainer-clean-am: distclean-am maintainer-clean-generic + +mostlyclean: mostlyclean-am + +mostlyclean-am: mostlyclean-compile mostlyclean-generic \ + mostlyclean-libtool + +pdf: pdf-am + +pdf-am: + +ps: ps-am + +ps-am: + +uninstall-am: uninstall-filterLTLIBRARIES uninstall-man + +uninstall-man: uninstall-man1 + +.MAKE: install-am install-strip + +.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am clean \ + clean-filterLTLIBRARIES clean-generic clean-libtool \ + cscopelist-am ctags ctags-am distclean distclean-compile \ + distclean-generic distclean-libtool distclean-tags distdir dvi \ + dvi-am html html-am info info-am install install-am \ + install-data install-data-am install-dvi install-dvi-am \ + install-exec install-exec-am install-filterLTLIBRARIES \ + install-html install-html-am install-info install-info-am \ + install-man install-man1 install-pdf install-pdf-am install-ps \ + install-ps-am install-strip installcheck installcheck-am \ + installdirs maintainer-clean maintainer-clean-generic \ + mostlyclean mostlyclean-compile mostlyclean-generic \ + mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \ + uninstall-am uninstall-filterLTLIBRARIES uninstall-man \ + uninstall-man1 + +.PRECIOUS: Makefile + + +@HAVE_POD_TRUE@nbdkit-cow-filter.1: nbdkit-cow-filter.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/cow/blk.c b/filters/cow/blk.c new file mode 100644 index 0000000..9c99aee --- /dev/null +++ b/filters/cow/blk.c @@ -0,0 +1,223 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* Notes on the design and implementation of this filter: + * + * The filter works by creating a large, sparse temporary file, the + * same size as the underlying device. Being sparse, initially this + * takes up no space. + * + * We confine all pread/pwrite operations to the filesystem block + * size. The blk_* functions below only work on whole filesystem + * block boundaries. A smaller-than-block-size pwrite will turn into + * a read-modify-write of a whole block. We also assume that the + * plugin returns the same immutable data for each pread call we make, + * and optimize on this basis. + * + * A block bitmap is maintained in memory recording if each block in + * the temporary file is "allocated" (1) or "hole" (0). + * + * When reading a block we first check the bitmap to see if that file + * block is allocated or a hole. If allocated, we return it from the + * temporary file. If a hole, we issue a pread to the underlying + * plugin. + * + * When writing a block we unconditionally write the data to the + * temporary file, setting the bit in the bitmap. + * + * We allow the client to request FUA, and emulate it with a flush + * (arguably, since the write overlay is temporary, we could ignore + * FUA altogether). + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#ifdef HAVE_ALLOCA_H +#include +#endif + +#include + +#include "bitmap.h" +#include "blk.h" + +#ifndef HAVE_FDATASYNC +#define fdatasync fsync +#endif + +/* The temporary overlay. */ +static int fd = -1; + +/* Bitmap. Bit = 1 => allocated, 0 => hole. */ +static struct bitmap bm; + +int +blk_init (void) +{ + const char *tmpdir; + size_t len; + char *template; + + bitmap_init (&bm, BLKSIZE, 1 /* bits per block */); + + tmpdir = getenv ("TMPDIR"); + if (!tmpdir) + tmpdir = LARGE_TMPDIR; + + nbdkit_debug ("cow: temporary directory for overlay: %s", tmpdir); + + len = strlen (tmpdir) + 8; + template = alloca (len); + snprintf (template, len, "%s/XXXXXX", tmpdir); + +#ifdef HAVE_MKOSTEMP + fd = mkostemp (template, O_CLOEXEC); +#else + fd = mkstemp (template); + fcntl (fd, F_SETFD, FD_CLOEXEC); +#endif + if (fd == -1) { + nbdkit_error ("mkostemp: %s: %m", tmpdir); + return -1; + } + + unlink (template); + return 0; +} + +void +blk_free (void) +{ + if (fd >= 0) + close (fd); + + bitmap_free (&bm); +} + +/* Allocate or resize the overlay file and bitmap. */ +int +blk_set_size (uint64_t new_size) +{ + if (bitmap_resize (&bm, new_size) == -1) + return -1; + + if (ftruncate (fd, new_size) == -1) { + nbdkit_error ("ftruncate: %m"); + return -1; + } + + return 0; +} + +/* Return true if the block is allocated. Consults the bitmap. */ +static bool +blk_is_allocated (uint64_t blknum) +{ + return bitmap_get_blk (&bm, blknum, false); +} + +/* Mark a block as allocated. */ +static void +blk_set_allocated (uint64_t blknum) +{ + bitmap_set_blk (&bm, blknum, true); +} + +/* These are the block operations. They always read or write a single + * whole block of size ‘blksize’. + */ +int +blk_read (struct nbdkit_next_ops *next_ops, void *nxdata, + uint64_t blknum, uint8_t *block, int *err) +{ + off_t offset = blknum * BLKSIZE; + bool allocated = blk_is_allocated (blknum); + + nbdkit_debug ("cow: blk_read block %" PRIu64 " (offset %" PRIu64 ") is %s", + blknum, (uint64_t) offset, + !allocated ? "a hole" : "allocated"); + + if (!allocated) /* Read underlying plugin. */ + return next_ops->pread (nxdata, block, BLKSIZE, offset, 0, err); + else { /* Read overlay. */ + if (pread (fd, block, BLKSIZE, offset) == -1) { + *err = errno; + nbdkit_error ("pread: %m"); + return -1; + } + return 0; + } +} + +int +blk_write (uint64_t blknum, const uint8_t *block, int *err) +{ + off_t offset = blknum * BLKSIZE; + + nbdkit_debug ("cow: blk_write block %" PRIu64 " (offset %" PRIu64 ")", + blknum, (uint64_t) offset); + + if (pwrite (fd, block, BLKSIZE, offset) == -1) { + *err = errno; + nbdkit_error ("pwrite: %m"); + return -1; + } + blk_set_allocated (blknum); + + return 0; +} + +int +blk_flush (void) +{ + /* I think we don't care about file metadata for this temporary + * file, so only flush the data. + */ + if (fdatasync (fd) == -1) { + nbdkit_error ("fdatasync: %m"); + return -1; + } + + return 0; +} diff --git a/filters/cow/blk.h b/filters/cow/blk.h new file mode 100644 index 0000000..429bb53 --- /dev/null +++ b/filters/cow/blk.h @@ -0,0 +1,69 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_BLK_H +#define NBDKIT_BLK_H + +/* Size of a block in the overlay. A 4K block size means that we need + * 32 MB of memory to store the bitmap for a 1 TB underlying image. + */ +#define BLKSIZE 4096 + +/* Initialize the overlay and bitmap. */ +extern int blk_init (void); + +/* Close the overlay, free the bitmap. */ +extern void blk_free (void); + +/*---------------------------------------------------------------------- + * ** NOTE ** + * + * An exclusive lock must be held when you call any function below + * this line. + */ + +/* Allocate or resize the overlay and bitmap. */ +extern int blk_set_size (uint64_t new_size); + +/* Read a single block from the overlay or plugin. */ +extern int blk_read (struct nbdkit_next_ops *next_ops, void *nxdata, + uint64_t blknum, uint8_t *block, int *err) + __attribute__((__nonnull__ (1, 4, 5))); + +/* Write a single block. */ +extern int blk_write (uint64_t blknum, const uint8_t *block, int *err) + __attribute__((__nonnull__ (2, 3))); + +/* Flush the overlay to disk. */ +extern int blk_flush (void); + +#endif /* NBDKIT_BLK_H */ diff --git a/filters/cow/cow.c b/filters/cow/cow.c new file mode 100644 index 0000000..6b3ccfd --- /dev/null +++ b/filters/cow/cow.c @@ -0,0 +1,332 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include + +#include + +#include + +#include "blk.h" + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + +/* In order to handle parallel requests safely, this lock must be held + * when calling any blk_* functions. + */ +static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; + +static void +cow_load (void) +{ + if (blk_init () == -1) + exit (EXIT_FAILURE); +} + +static void +cow_unload (void) +{ + blk_free (); +} + +static void * +cow_open (nbdkit_next_open *next, void *nxdata, int readonly) +{ + /* Always pass readonly=1 to the underlying plugin. */ + if (next (nxdata, 1) == -1) + return NULL; + + return NBDKIT_HANDLE_NOT_NEEDED; +} + +/* Get the file size and ensure the overlay is the correct size. */ +static int64_t +cow_get_size (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + int64_t size; + int r; + + size = next_ops->get_size (nxdata); + if (size == -1) + return -1; + + nbdkit_debug ("cow: underlying file size: %" PRIi64, size); + + pthread_mutex_lock (&lock); + r = blk_set_size (size); + pthread_mutex_unlock (&lock); + if (r == -1) + return -1; + + return size; +} + +/* Force an early call to cow_get_size, consequently truncating the + * overlay to the correct size. + */ +static int +cow_prepare (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + int64_t r; + + r = cow_get_size (next_ops, nxdata, handle); + return r >= 0 ? 0 : -1; +} + +/* Whatever the underlying plugin can or can't do, we can write, we + * cannot trim or detect extents, and we can flush. + */ +static int +cow_can_write (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle) +{ + return 1; +} + +static int +cow_can_trim (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle) +{ + return 0; +} + +static int +cow_can_extents (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle) +{ + return 0; +} + +static int +cow_can_flush (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle) +{ + return 1; +} + +static int +cow_can_fua (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle) +{ + return NBDKIT_FUA_EMULATE; +} + +static int cow_flush (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle, uint32_t flags, int *err); + +/* Read data. */ +static int +cow_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + uint8_t *block; + + block = malloc (BLKSIZE); + if (block == NULL) { + *err = errno; + nbdkit_error ("malloc: %m"); + return -1; + } + + while (count > 0) { + uint64_t blknum, blkoffs, n; + int r; + + blknum = offset / BLKSIZE; /* block number */ + blkoffs = offset % BLKSIZE; /* offset within the block */ + n = BLKSIZE - blkoffs; /* max bytes we can read from this block */ + if (n > count) + n = count; + + pthread_mutex_lock (&lock); + r = blk_read (next_ops, nxdata, blknum, block, err); + pthread_mutex_unlock (&lock); + if (r == -1) { + free (block); + return -1; + } + + memcpy (buf, &block[blkoffs], n); + + buf += n; + count -= n; + offset += n; + } + + free (block); + return 0; +} + +/* Write data. */ +static int +cow_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, const void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + uint8_t *block; + + block = malloc (BLKSIZE); + if (block == NULL) { + *err = errno; + nbdkit_error ("malloc: %m"); + return -1; + } + + while (count > 0) { + uint64_t blknum, blkoffs, n; + int r; + + blknum = offset / BLKSIZE; /* block number */ + blkoffs = offset % BLKSIZE; /* offset within the block */ + n = BLKSIZE - blkoffs; /* max bytes we can read from this block */ + if (n > count) + n = count; + + /* Do a read-modify-write operation on the current block. + * Hold the lock over the whole operation. + */ + pthread_mutex_lock (&lock); + r = blk_read (next_ops, nxdata, blknum, block, err); + if (r != -1) { + memcpy (&block[blkoffs], buf, n); + r = blk_write (blknum, block, err); + } + pthread_mutex_unlock (&lock); + if (r == -1) { + free (block); + return -1; + } + + buf += n; + count -= n; + offset += n; + } + + free (block); + if (flags & NBDKIT_FLAG_FUA) + return cow_flush (next_ops, nxdata, handle, 0, err); + return 0; +} + +/* Zero data. */ +static int +cow_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + uint8_t *block; + + block = malloc (BLKSIZE); + if (block == NULL) { + *err = errno; + nbdkit_error ("malloc: %m"); + return -1; + } + + while (count > 0) { + uint64_t blknum, blkoffs, n; + int r; + + blknum = offset / BLKSIZE; /* block number */ + blkoffs = offset % BLKSIZE; /* offset within the block */ + n = BLKSIZE - blkoffs; /* max bytes we can read from this block */ + if (n > count) + n = count; + + /* Do a read-modify-write operation on the current block. + * Hold the lock over the whole operation. + * + * XXX There is the possibility of optimizing this: ONLY if we are + * writing a whole, aligned block, then use FALLOC_FL_ZERO_RANGE. + */ + pthread_mutex_lock (&lock); + r = blk_read (next_ops, nxdata, blknum, block, err); + if (r != -1) { + memset (&block[blkoffs], 0, n); + r = blk_write (blknum, block, err); + } + pthread_mutex_unlock (&lock); + if (r == -1) { + free (block); + return -1; + } + + count -= n; + offset += n; + } + + free (block); + if (flags & NBDKIT_FLAG_FUA) + return cow_flush (next_ops, nxdata, handle, 0, err); + return 0; +} + +static int +cow_flush (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle, + uint32_t flags, int *err) +{ + int r; + + pthread_mutex_lock (&lock); + r = blk_flush (); + if (r == -1) + *err = errno; + pthread_mutex_unlock (&lock); + return r; +} + +static struct nbdkit_filter filter = { + .name = "cow", + .longname = "nbdkit copy-on-write (COW) filter", + .version = PACKAGE_VERSION, + .load = cow_load, + .unload = cow_unload, + .open = cow_open, + .prepare = cow_prepare, + .get_size = cow_get_size, + .can_write = cow_can_write, + .can_flush = cow_can_flush, + .can_trim = cow_can_trim, + .can_extents = cow_can_extents, + .can_fua = cow_can_fua, + .pread = cow_pread, + .pwrite = cow_pwrite, + .zero = cow_zero, + .flush = cow_flush, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/cow/nbdkit-cow-filter.pod b/filters/cow/nbdkit-cow-filter.pod new file mode 100644 index 0000000..f88d8ee --- /dev/null +++ b/filters/cow/nbdkit-cow-filter.pod @@ -0,0 +1,122 @@ +=head1 NAME + +nbdkit-cow-filter - nbdkit copy-on-write (COW) filter + +=head1 SYNOPSIS + + nbdkit --filter=cow plugin [plugin-args...] + +=head1 DESCRIPTION + +C is a filter that makes a temporary writable copy +on top of a read-only plugin. It can be used to enable writes for +plugins which only implement read-only access. Note that: + +=over 4 + +=item * + +B + +=item * + +All connections to the nbdkit instance see the same view of the disk. + +This is different from L where each connection sees its +own copy-on-write overlay and simply disconnecting the client throws +that away. It also allows us to create diffs, see below. + +=item * + +The plugin is opened read-only (as if the I<-r> flag was passed), but +you should B pass the I<-r> flag to nbdkit. + +=back + +Limitations of the filter include: + +=over 4 + +=item * + +The underlying file/device must not be resized. + +=item * + +The underlying plugin must behave “normally”, meaning that it must +serve the same data to each client. + +=back + +=head1 PARAMETERS + +There are no parameters specific to nbdkit-cow-filter. Any parameters +are passed through to and processed by the underlying plugin in the +normal way. + +=head1 EXAMPLES + +Serve the file F, allowing writes, but do not save any +changes into the file: + + nbdkit --filter=cow file disk.img + +L only supports read access, but you can provide +temporary write access by doing (although this does B save +changes to the file): + + nbdkit --filter=cow xz disk.xz + +=head1 CREATING A DIFF WITH QEMU-IMG + +Although nbdkit-cow-filter itself cannot save the differences, it is +possible to do this using an obscure feature of L. +B. + +Run nbdkit: + + nbdkit --filter=cow file disk.img + +and then connect with a client and make whatever changes you need. +At the end, disconnect the client. + +Run these C commands to construct a qcow2 file containing +the differences: + + qemu-img create -f qcow2 -b nbd:localhost diff.qcow2 + qemu-img rebase -b disk.img diff.qcow2 + +F now contains the differences between the base +(F) and the changes stored in nbdkit-cow-filter. C +can now be killed. + +=head1 ENVIRONMENT VARIABLES + +=over 4 + +=item C + +The copy-on-write changes are stored in a temporary file located in +F by default. You can override this location by setting the +C environment variable before starting nbdkit. + +=back + +=head1 SEE ALSO + +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/filters/delay/Makefile.am b/filters/delay/Makefile.am new file mode 100644 index 0000000..da33ba6 --- /dev/null +++ b/filters/delay/Makefile.am @@ -0,0 +1,60 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-delay-filter.pod + +filter_LTLIBRARIES = nbdkit-delay-filter.la + +nbdkit_delay_filter_la_SOURCES = \ + delay.c \ + $(top_srcdir)/include/nbdkit-filter.h + +nbdkit_delay_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include +nbdkit_delay_filter_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_delay_filter_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms + +if HAVE_POD + +man_MANS = nbdkit-delay-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-delay-filter.1: nbdkit-delay-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/delay/Makefile.in b/filters/delay/Makefile.in new file mode 100644 index 0000000..b53ca59 --- /dev/null +++ b/filters/delay/Makefile.in @@ -0,0 +1,879 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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$(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/delay/delay.c b/filters/delay/delay.c new file mode 100644 index 0000000..862af93 --- /dev/null +++ b/filters/delay/delay.c @@ -0,0 +1,247 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include + +#include + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + +static int delay_read_ms = 0; /* read delay (milliseconds) */ +static int delay_write_ms = 0; /* write delay (milliseconds) */ +static int delay_zero_ms = 0; /* zero delay (milliseconds) */ +static int delay_trim_ms = 0; /* trim delay (milliseconds) */ +static int delay_extents_ms = 0;/* extents delay (milliseconds) */ + +static int +parse_delay (const char *key, const char *value) +{ + size_t len = strlen (value); + int r; + + if (len > 2 && strcmp (&value[len-2], "ms") == 0) { + if (sscanf (value, "%d", &r) == 1) + return r; + else { + nbdkit_error ("cannot parse %s in milliseconds parameter: %s", + key, value); + return -1; + } + } + else { + if (sscanf (value, "%d", &r) == 1) + return r * 1000; + else { + nbdkit_error ("cannot parse %s in seconds parameter: %s", + key, value); + return -1; + } + } +} + +static void +delay (int ms) +{ + if (ms > 0) { + const struct timespec ts = { + .tv_sec = ms / 1000, + .tv_nsec = (ms * 1000000) % 1000000000 + }; + nanosleep (&ts, NULL); + } +} + +static void +read_delay (void) +{ + delay (delay_read_ms); +} + +static void +write_delay (void) +{ + delay (delay_write_ms); +} + +static void +zero_delay (void) +{ + delay (delay_zero_ms); +} + +static void +trim_delay (void) +{ + delay (delay_trim_ms); +} + +static void +extents_delay (void) +{ + delay (delay_extents_ms); +} + +/* Called for each key=value passed on the command line. */ +static int +delay_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "rdelay") == 0 || + strcmp (key, "delay-read") == 0 || + strcmp (key, "delay-reads") == 0) { + delay_read_ms = parse_delay (key, value); + if (delay_read_ms == -1) + return -1; + return 0; + } + else if (strcmp (key, "wdelay") == 0) { + delay_write_ms = parse_delay (key, value); + if (delay_write_ms == -1) + return -1; + /* Historically wdelay set all write-related delays. */ + delay_zero_ms = delay_trim_ms = delay_write_ms; + return 0; + } + else if (strcmp (key, "delay-write") == 0 || + strcmp (key, "delay-writes") == 0) { + delay_write_ms = parse_delay (key, value); + if (delay_write_ms == -1) + return -1; + return 0; + } + else if (strcmp (key, "delay-zero") == 0 || + strcmp (key, "delay-zeroes") == 0) { + delay_zero_ms = parse_delay (key, value); + if (delay_zero_ms == -1) + return -1; + return 0; + } + else if (strcmp (key, "delay-trim") == 0 || + strcmp (key, "delay-trims") == 0 || + strcmp (key, "delay-discard") == 0 || + strcmp (key, "delay-discards") == 0) { + delay_trim_ms = parse_delay (key, value); + if (delay_trim_ms == -1) + return -1; + return 0; + } + else if (strcmp (key, "delay-extent") == 0 || + strcmp (key, "delay-extents") == 0) { + delay_extents_ms = parse_delay (key, value); + if (delay_extents_ms == -1) + return -1; + return 0; + } + else + return next (nxdata, key, value); +} + +#define delay_config_help \ + "rdelay=[ms] Read delay in seconds/milliseconds.\n" \ + "delay-read=[ms] Read delay in seconds/milliseconds.\n" \ + "delay-write=[ms] Write delay in seconds/milliseconds.\n" \ + "delay-zero=[ms] Zero delay in seconds/milliseconds.\n" \ + "delay-trim=[ms] Trim delay in seconds/milliseconds.\n" \ + "delay-extents=[ms] Extents delay in seconds/milliseconds.\n" \ + "wdelay=[ms] Write, zero and trim delay in secs/msecs." + +/* Read data. */ +static int +delay_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + read_delay (); + return next_ops->pread (nxdata, buf, count, offset, flags, err); +} + +/* Write data. */ +static int +delay_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + const void *buf, uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + write_delay (); + return next_ops->pwrite (nxdata, buf, count, offset, flags, err); +} + +/* Zero data. */ +static int +delay_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + zero_delay (); + return next_ops->zero (nxdata, count, offset, flags, err); +} + +/* Trim data. */ +static int +delay_trim (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + trim_delay (); + return next_ops->trim (nxdata, count, offset, flags, err); +} + +/* Extents. */ +static int +delay_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, uint32_t flags, + struct nbdkit_extents *extents, int *err) +{ + extents_delay (); + return next_ops->extents (nxdata, count, offset, flags, extents, err); +} + +static struct nbdkit_filter filter = { + .name = "delay", + .longname = "nbdkit delay filter", + .version = PACKAGE_VERSION, + .config = delay_config, + .config_help = delay_config_help, + .pread = delay_pread, + .pwrite = delay_pwrite, + .zero = delay_zero, + .trim = delay_trim, + .extents = delay_extents, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/delay/nbdkit-delay-filter.pod b/filters/delay/nbdkit-delay-filter.pod new file mode 100644 index 0000000..2e2ac74 --- /dev/null +++ b/filters/delay/nbdkit-delay-filter.pod @@ -0,0 +1,95 @@ +=head1 NAME + +nbdkit-delay-filter - nbdkit delay filter + +=head1 SYNOPSIS + + nbdkit --filter=delay plugin rdelay=SECS wdelay=SECS [plugin-args...] + + nbdkit --filter=delay plugin rdelay=NNms wdelay=NNms [plugin-args...] + + nbdkit --filter=delay plugin [plugin-args ...] + delay-read=(SECS|NNms) delay-write=(SECS|NNms) + delay-zero=(SECS|NNms) delay-trim=(SECS|NNms) + delay-extents=(SECS|NNms) + +=head1 DESCRIPTION + +C is a filter that delays read and write requests +by some seconds or milliseconds. This is used to simulate a slow or +remote server, or to test certain kinds of race conditions in Linux. +To limit server bandwidth use L instead. + +=head1 EXAMPLES + +Delays reads and writes by 100ms: + + nbdkit --filter=delay file disk.img rdelay=100ms wdelay=100ms + +Delay only zero operations by 1 second, nothing else is affected: + + nbdkit --filter=delay file disk.img delay-zero=1 + +=head1 PARAMETERS + +=over 4 + +=item BSECS + +=item BNNB + +=item BSECS + +=item BNNB + +Delay read operations by C seconds or C milliseconds. + +The two forms C and C work identically. + +=item BSECS + +=item BNNB + +Delay write operations by C seconds or C milliseconds. + +=item BSECS + +=item BNNB + +Delay zero operations by C seconds or C milliseconds. + +=item BSECS + +=item BNNB + +Delay trim/discard operations by C seconds or C milliseconds. + +=item BSECS + +=item BNNB + +Delay block status (extents) operations by C seconds or C +milliseconds. + +=item BSECS + +=item BNNB + +Delay write, zero and trim operations by C seconds or C +milliseconds. + +=back + +=head1 SEE ALSO + +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/filters/error/Makefile.am b/filters/error/Makefile.am new file mode 100644 index 0000000..9f116fe --- /dev/null +++ b/filters/error/Makefile.am @@ -0,0 +1,61 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-error-filter.pod + +filter_LTLIBRARIES = nbdkit-error-filter.la + +nbdkit_error_filter_la_SOURCES = \ + error.c \ + $(top_srcdir)/include/nbdkit-filter.h + +nbdkit_error_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include +nbdkit_error_filter_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_error_filter_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms + +if HAVE_POD + +man_MANS = nbdkit-error-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-error-filter.1: nbdkit-error-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/error/Makefile.in b/filters/error/Makefile.in new file mode 100644 index 0000000..9b9de07 --- /dev/null +++ b/filters/error/Makefile.in @@ -0,0 +1,880 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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$(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/error/error.c b/filters/error/error.c new file mode 100644 index 0000000..0f84f12 --- /dev/null +++ b/filters/error/error.c @@ -0,0 +1,375 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include + +#include "random.h" + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + +struct error_settings { + int error; /* errno, eg. EIO */ + double rate; /* rate, 0.0 = never, 1.0 = always */ + char *file; /* error file, NULL = no file */ +}; + +#define ERROR_DEFAULT { .error = EIO, .rate = 0, .file = NULL } + +/* Settings for each type of request, read from the command line. */ +static struct error_settings pread_settings = ERROR_DEFAULT; +static struct error_settings pwrite_settings = ERROR_DEFAULT; +static struct error_settings trim_settings = ERROR_DEFAULT; +static struct error_settings zero_settings = ERROR_DEFAULT; +static struct error_settings extents_settings = ERROR_DEFAULT; + +/* Random state. + * This must only be accessed when holding the lock (except for load). + */ +static struct random_state random_state; +static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; + +static void +error_load (void) +{ + xsrandom (time (NULL), &random_state); +} + +static void +error_unload (void) +{ + free (pread_settings.file); + free (pwrite_settings.file); + free (trim_settings.file); + free (zero_settings.file); + free (extents_settings.file); +} + +static const struct { const char *name; int error; } errors[] = { + { "EPERM", EPERM }, + { "EIO", EIO }, + { "ENOMEM", ENOMEM }, + { "EINVAL", EINVAL }, + { "ENOSPC", ENOSPC }, + { "ESHUTDOWN", ESHUTDOWN }, + { NULL } +}; + +static const char * +error_as_string (int error) +{ + size_t i; + + for (i = 0; errors[i].name != NULL; ++i) { + if (errors[i].error == error) + return errors[i].name; + } + abort (); +} + +static int +parse_error (const char *key, const char *value, int *retp) +{ + size_t i; + + for (i = 0; errors[i].name != NULL; ++i) { + if (strcmp (value, errors[i].name) == 0) { + *retp = errors[i].error; + return 0; + } + } + + nbdkit_error ("%s: unknown error name '%s'", key, value); + return -1; +} + +static int +parse_error_rate (const char *key, const char *value, double *retp) +{ + double d; + int n; + + if (sscanf (value, "%lg%n", &d, &n) == 1) { + if (strcmp (&value[n], "%") == 0) /* percentage */ + d /= 100.0; + else if (strcmp (&value[n], "") == 0) /* probability */ + ; + else + goto bad_parse; + } + else { + bad_parse: + nbdkit_error ("%s: could not parse rate '%s'", key, value); + return -1; + } + if (d < 0 || d > 1) { + nbdkit_error ("%s: rate out of range: '%s' parsed as %g", key, value, d); + return -1; + } + *retp = d; + return 0; +} + +/* Called for each key=value passed on the command line. */ +static int +error_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + int i; + double d; + + if (strcmp (key, "error") == 0) { + if (parse_error (key, value, &i) == -1) + return -1; + pread_settings.error = pwrite_settings.error = + trim_settings.error = zero_settings.error = + extents_settings.error = i; + return 0; + } + else if (strcmp (key, "error-pread") == 0) + return parse_error (key, value, &pread_settings.error); + else if (strcmp (key, "error-pwrite") == 0) + return parse_error (key, value, &pwrite_settings.error); + else if (strcmp (key, "error-trim") == 0) + return parse_error (key, value, &trim_settings.error); + else if (strcmp (key, "error-zero") == 0) + return parse_error (key, value, &zero_settings.error); + else if (strcmp (key, "error-extents") == 0) + return parse_error (key, value, &extents_settings.error); + + else if (strcmp (key, "error-rate") == 0) { + if (parse_error_rate (key, value, &d) == -1) + return -1; + pread_settings.rate = pwrite_settings.rate = + trim_settings.rate = zero_settings.rate = + extents_settings.rate = d; + return 0; + } + else if (strcmp (key, "error-pread-rate") == 0) + return parse_error_rate (key, value, &pread_settings.rate); + else if (strcmp (key, "error-pwrite-rate") == 0) + return parse_error_rate (key, value, &pwrite_settings.rate); + else if (strcmp (key, "error-trim-rate") == 0) + return parse_error_rate (key, value, &trim_settings.rate); + else if (strcmp (key, "error-zero-rate") == 0) + return parse_error_rate (key, value, &zero_settings.rate); + else if (strcmp (key, "error-extents-rate") == 0) + return parse_error_rate (key, value, &extents_settings.rate); + + /* NB: We are using nbdkit_absolute_path here because the trigger + * file probably doesn't exist yet. + */ + else if (strcmp (key, "error-file") == 0) { + free (pread_settings.file); + pread_settings.file = nbdkit_absolute_path (value); + free (pwrite_settings.file); + pwrite_settings.file = nbdkit_absolute_path (value); + free (trim_settings.file); + trim_settings.file = nbdkit_absolute_path (value); + free (zero_settings.file); + zero_settings.file = nbdkit_absolute_path (value); + free (extents_settings.file); + extents_settings.file = nbdkit_absolute_path (value); + return 0; + } + else if (strcmp (key, "error-pread-file") == 0) { + free (pread_settings.file); + pread_settings.file = nbdkit_absolute_path (value); + return 0; + } + else if (strcmp (key, "error-pwrite-file") == 0) { + free (pwrite_settings.file); + pwrite_settings.file = nbdkit_absolute_path (value); + return 0; + } + else if (strcmp (key, "error-trim-file") == 0) { + free (trim_settings.file); + trim_settings.file = nbdkit_absolute_path (value); + return 0; + } + else if (strcmp (key, "error-zero-file") == 0) { + free (zero_settings.file); + zero_settings.file = nbdkit_absolute_path (value); + return 0; + } + else if (strcmp (key, "error-extents-file") == 0) { + free (extents_settings.file); + extents_settings.file = nbdkit_absolute_path (value); + return 0; + } + + else + return next (nxdata, key, value); +} + +#define error_config_help \ + "error=EPERM|EIO|ENOMEM|EINVAL|ENOSPC|ESHUTDOWN\n" \ + " The error indication to return.\n" \ + "error-rate=0%..100%|0..1 Rate of errors to generate.\n" \ + "error-file=TRIGGER Set trigger filename.\n" \ + "error-pread*, error-pwrite*, error-trim*, error-zero*, error-extents*\n" \ + " Apply settings only to read/write/etc" + +static void * +error_open (nbdkit_next_open *next, void *nxdata, int readonly) +{ + if (next (nxdata, readonly) == -1) + return NULL; + + return NBDKIT_HANDLE_NOT_NEEDED; +} + +/* This function injects a random error. */ +static bool +random_error (const struct error_settings *error_settings, + const char *fn, int *err) +{ + uint64_t rand; + + if (error_settings->rate <= 0) /* 0% = never inject */ + return false; + + /* Does the trigger file exist? */ + if (error_settings->file != NULL) { + if (access (error_settings->file, F_OK) == -1) + return false; + } + + if (error_settings->rate >= 1) /* 100% = always inject */ + goto inject; + + /* To avoid the question if (double)1.0 * UINT64_MAX is + * representable in a 64 bit integer, and because we don't need all + * this precision anyway, let's work in 32 bits. + */ + pthread_mutex_lock (&lock); + rand = xrandom (&random_state) & UINT32_MAX; + pthread_mutex_unlock (&lock); + if (rand >= error_settings->rate * UINT32_MAX) + return false; + + inject: + *err = error_settings->error; + nbdkit_error ("injecting %s error into %s", error_as_string (*err), fn); + return true; +} + +/* Read data. */ +static int +error_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + if (random_error (&pread_settings, "pread", err)) + return -1; + + return next_ops->pread (nxdata, buf, count, offset, flags, err); +} + +/* Write data. */ +static int +error_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + const void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + if (random_error (&pwrite_settings, "pwrite", err)) + return -1; + + return next_ops->pwrite (nxdata, buf, count, offset, flags, err); +} + +/* Trim data. */ +static int +error_trim (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + if (random_error (&trim_settings, "trim", err)) + return -1; + + return next_ops->trim (nxdata, count, offset, flags, err); +} + +/* Zero data. */ +static int +error_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + if (random_error (&zero_settings, "zero", err)) + return -1; + + return next_ops->zero (nxdata, count, offset, flags, err); +} + +/* Extents. */ +static int +error_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, struct nbdkit_extents *extents, int *err) +{ + if (random_error (&extents_settings, "extents", err)) + return -1; + + return next_ops->extents (nxdata, count, offset, flags, extents, err); +} + +static struct nbdkit_filter filter = { + .name = "error", + .longname = "nbdkit error filter", + .version = PACKAGE_VERSION, + .load = error_load, + .unload = error_unload, + .config = error_config, + .config_help = error_config_help, + .open = error_open, + .pread = error_pread, + .pwrite = error_pwrite, + .trim = error_trim, + .zero = error_zero, + .extents = error_extents, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/error/nbdkit-error-filter.pod b/filters/error/nbdkit-error-filter.pod new file mode 100644 index 0000000..16ef184 --- /dev/null +++ b/filters/error/nbdkit-error-filter.pod @@ -0,0 +1,146 @@ +=head1 NAME + +nbdkit-error-filter - inject errors for testing clients + +=head1 SYNOPSIS + + nbdkit --filter=error PLUGIN + [error=EPERM|EIO|ENOMEM|EINVAL|ENOSPC|ESHUTDOWN] + [error-rate=10%|0.1] + [error-file=/tmp/inject] + [error-pread=...] [error-pread-rate=...] [error-pread-file=...] + [error-pwrite=...] [error-pwrite-rate=...] [error-pwrite-file=...] + [error-trim=...] [error-trim-rate=...] [error-trim-file=...] + [error-zero=...] [error-zero-rate=...] [error-zero-file=...] + [error-extents=...] [error-extents-rate=...] [error-extents-file=...] + +=head1 DESCRIPTION + +C is an nbdkit filter that injects random errors +into replies from the server. This is used for testing that NBD +clients can handle errors. + +All parameters are optional, but you should usually specify one of the +C or C parameters, +B. + +=head1 EXAMPLES + +Inject a low rate of errors randomly into the connection: + + nbdkit --filter=error file disk.img error-rate=1% + +Reading, trimming and extents (block status) requests will be +successful, but all writes and zeroing will return "No space left on +device": + + nbdkit --filter=error file disk.img \ + error=ENOSPC \ + error-pwrite-rate=100% \ + error-zero-rate=100% + +To make all connections fail hard 60 seconds after the server is +started, use: + + rm -f /tmp/inject + nbdkit --filter=error file disk.img \ + error-rate=100% \ + error-file=/tmp/inject + sleep 60; touch /tmp/inject + +=head1 PARAMETERS + +=over 4 + +=item B + +When a random error is injected, you can select which one from the +range of possible NBD errors (the NBD protocol only supports a limited +range of error codes). + +This parameter is optional and the default is C +("Input/output error"). + +=item BNB<%> + +=item B0..1 + +The rate of injected errors per NBD request. This can be expressed as +either a percentage between C<0%> and C<100%> or as a probability +between C<0> and C<1>. If C<0%> or C<0> is used then no errors are +ever injected, and if C<100%> or C<1> is used then all requests return +errors. + +This parameter is optional and the default is C<0%>. +B + +=item BFILENAME + +Errors will only be injected when F exists. (Note you must +also specify the C). + +You can use this for fine-grained control over when to inject errors, +for example if you want to trigger an error at an exact moment during +a test, arrange for this file to be created at the appropriate time. +Or conversely to test error recovery in a client, create the file +initially, and then delete it to check the client can recover. + +This parameter is optional. + +=item B, B, B. + +Same as C, C and C but only apply the +settings to NBD pread requests. + +=item B, B, B. + +Same as C, C and C but only apply the +settings to NBD pwrite requests. + +=item B, B, B. + +Same as C, C and C but only apply the +settings to NBD trim requests. + +=item B, B, B. + +Same as C, C and C but only apply the +settings to NBD zero requests. + +=item B, B, B. + +Same as C, C and C but only apply the +settings to NBD block status requests to read extents. + +=back + +=head1 NOTES + +=head2 Peculiar debug output + +If you are looking at the debugging output (using C) +then you may see peculiar "errors" appearing when using this filter, +for example: + + nbdkit: file.9: debug: error: pread count=1024 offset=0 flags=0x0 + +In fact these are not errors, nbdkit core is simply printing the name +of the filter which happens to be C<"error">. When this filter +injects an error you will see something like: + + nbdkit: file.4: error: injecting ENOSPC error into pwrite + +=head1 SEE ALSO + +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/filters/filters.syms b/filters/filters.syms new file mode 100644 index 0000000..6d49e74 --- /dev/null +++ b/filters/filters.syms @@ -0,0 +1,46 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# This linker script controls the visibility of symbols in filters. +# Filters only need to export the "filter_init" function and debug +# flags. +# +# Use of this linker script is entirely optional. It's just for +# hygiene. + +{ + global: + filter_init; + *_debug_*; + + # Everything else is hidden. + local: *; +}; diff --git a/filters/fua/Makefile.am b/filters/fua/Makefile.am new file mode 100644 index 0000000..707835d --- /dev/null +++ b/filters/fua/Makefile.am @@ -0,0 +1,60 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-fua-filter.pod + +filter_LTLIBRARIES = nbdkit-fua-filter.la + +nbdkit_fua_filter_la_SOURCES = \ + fua.c \ + $(top_srcdir)/include/nbdkit-filter.h + +nbdkit_fua_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include +nbdkit_fua_filter_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_fua_filter_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms + +if HAVE_POD + +man_MANS = nbdkit-fua-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-fua-filter.1: nbdkit-fua-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/fua/Makefile.in b/filters/fua/Makefile.in new file mode 100644 index 0000000..84de6f6 --- /dev/null +++ b/filters/fua/Makefile.in @@ -0,0 +1,879 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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exceeded. +.NOEXPORT: diff --git a/filters/fua/fua.c b/filters/fua/fua.c new file mode 100644 index 0000000..843b2cd --- /dev/null +++ b/filters/fua/fua.c @@ -0,0 +1,250 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include + +#include + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + +enum FuaMode { + NONE, + EMULATE, + NATIVE, + FORCE, +} fuamode; + +static int +fua_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "fuamode") == 0) { + if (strcmp (value, "none") == 0) + fuamode = NONE; + if (strcmp (value, "emulate") == 0) + fuamode = EMULATE; + else if (strcmp (value, "native") == 0) + fuamode = NATIVE; + else if (strcmp (value, "force") == 0) + fuamode = FORCE; + else { + nbdkit_error ("unknown fuamode '%s'", value); + return -1; + } + return 0; + } + return next (nxdata, key, value); +} + +#define fua_config_help \ + "fuamode= One of 'none' (default), 'emulate', 'native', 'force'.\n" \ + +/* Check that desired mode is supported by plugin. */ +static int +fua_prepare (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle) +{ + int r; + + switch (fuamode) { + case NONE: + break; + case EMULATE: + r = next_ops->can_flush (nxdata); + if (r == -1) + return -1; + if (r == 0) { + nbdkit_error ("fuamode 'emulate' requires plugin flush support"); + return -1; + } + break; + case NATIVE: + case FORCE: + r = next_ops->can_fua (nxdata); + if (r == -1) + return -1; + if (r == NBDKIT_FUA_NONE) { + nbdkit_error ("fuamode '%s' requires plugin fua support", + fuamode == EMULATE ? "emulate" : "force"); + return -1; + } + break; + } + return 0; +} + +/* Advertise proper flush support. */ +static int +fua_can_flush (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle) +{ + if (fuamode == FORCE) + return 1; /* Advertise our no-op flush, even if plugin lacks it */ + return next_ops->can_flush (nxdata); +} + +/* Advertise desired fua mode. */ +static int +fua_can_fua (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle) +{ + switch (fuamode) { + case NONE: + return NBDKIT_FUA_NONE; + case EMULATE: + return NBDKIT_FUA_EMULATE; + case NATIVE: + case FORCE: + return NBDKIT_FUA_NATIVE; + } + abort (); +} + +static int +fua_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, const void *buf, uint32_t count, uint64_t offs, + uint32_t flags, int *err) +{ + int r; + bool need_flush = false; + + switch (fuamode) { + case NONE: + assert (!(flags & NBDKIT_FLAG_FUA)); + break; + case EMULATE: + if (flags & NBDKIT_FLAG_FUA) { + need_flush = true; + flags &= ~NBDKIT_FLAG_FUA; + } + break; + case NATIVE: + break; + case FORCE: + flags |= NBDKIT_FLAG_FUA; + break; + } + r = next_ops->pwrite (nxdata, buf, count, offs, flags, err); + if (r != -1 && need_flush) + r = next_ops->flush (nxdata, 0, err); + return r; +} + +static int +fua_flush (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t flags, int *err) +{ + if (fuamode == FORCE) + return 0; /* Nothing to flush, since all writes already used FUA */ + return next_ops->flush (nxdata, flags, err); +} + +static int +fua_trim (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + int r; + bool need_flush = false; + + switch (fuamode) { + case NONE: + assert (!(flags & NBDKIT_FLAG_FUA)); + break; + case EMULATE: + if (flags & NBDKIT_FLAG_FUA) { + need_flush = true; + flags &= ~NBDKIT_FLAG_FUA; + } + break; + case NATIVE: + break; + case FORCE: + flags |= NBDKIT_FLAG_FUA; + break; + } + r = next_ops->trim (nxdata, count, offs, flags, err); + if (r != -1 && need_flush) + r = next_ops->flush (nxdata, 0, err); + return r; +} + +static int +fua_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + int r; + bool need_flush = false; + + switch (fuamode) { + case NONE: + assert (!(flags & NBDKIT_FLAG_FUA)); + break; + case EMULATE: + if (flags & NBDKIT_FLAG_FUA) { + need_flush = true; + flags &= ~NBDKIT_FLAG_FUA; + } + break; + case NATIVE: + break; + case FORCE: + flags |= NBDKIT_FLAG_FUA; + break; + } + r = next_ops->zero (nxdata, count, offs, flags, err); + if (r != -1 && need_flush) + r = next_ops->flush (nxdata, 0, err); + return r; +} + +static struct nbdkit_filter filter = { + .name = "fua", + .longname = "nbdkit fua filter", + .version = PACKAGE_VERSION, + .config = fua_config, + .config_help = fua_config_help, + .prepare = fua_prepare, + .can_flush = fua_can_flush, + .can_fua = fua_can_fua, + .pwrite = fua_pwrite, + .flush = fua_flush, + .trim = fua_trim, + .zero = fua_zero, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/fua/nbdkit-fua-filter.pod b/filters/fua/nbdkit-fua-filter.pod new file mode 100644 index 0000000..e0b3c4d --- /dev/null +++ b/filters/fua/nbdkit-fua-filter.pod @@ -0,0 +1,77 @@ +=head1 NAME + +nbdkit-fua-filter - nbdkit FUA filter + +=head1 SYNOPSIS + + nbdkit --filter=fua plugin [fuamode=MODE] [plugin-args...] + +=head1 DESCRIPTION + +C is a filter that intentionally modifies handling +of the 'Forced Unit Access' (FUA) flag across the NBD protocol. It is +mainly useful for testing client or server fallbacks, and for +evaluating timing differences between proper use of FUA compared to a +full flush. + +=head1 PARAMETERS + +=over 4 + +=item B + +Optional, controls which mode the filter will use. Mode B +(default) means that FUA support is not advertised to the client. +Mode B causes the filter to emulate FUA support using the +plugin's C callback, regardless of whether the plugin itself +supports more efficient FUA (or refuses to load if the plugin's +C callback returns false). Mode B causes the +filter to advertise native FUA support to earlier filters, useful for +comparing optimizations of FUA handling when splitting large requests +into sub-requests (or refuses to load if the plugin's C +callback returns C). Mode B causes the filter +to request FUA on all write transactions, even when the client did not +request it, and in turn treats client flush requests as a no-op (or +refuses to load if the plugin's C callback returns +C). + +=back + +=head1 EXAMPLES + +Serve the file F, but force the client to submit explicit +flush requests instead of using C: + + nbdkit --filter=fua file disk.img + +Observe that the blocksize filter optimizes its handling of the FUA +flag based on whether it knows nbdkit will be emulating FUA with a +flush, by comparing the log filter output on top of different fua +filter modes: + + nbdkit --filter=blocksize --filter=log --filter=fua file disk.img \ + maxlen=4k logfile=fua_emulated fuamode=emulate + nbdkit --filter=blocksize --filter=log --filter=fua file disk.img \ + maxlen=4k logfile=fua_native fuamode=native + +Serve the file F in write-through mode, where all writes +from the client are immediately flushed to disk as if the client had +always requested FUA: + + nbdkit --filter=fua file fuamode=force disk.img + +=head1 SEE ALSO + +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/filters/log/Makefile.am b/filters/log/Makefile.am new file mode 100644 index 0000000..271d54e --- /dev/null +++ b/filters/log/Makefile.am @@ -0,0 +1,60 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-log-filter.pod + +filter_LTLIBRARIES = nbdkit-log-filter.la + +nbdkit_log_filter_la_SOURCES = \ + log.c \ + $(top_srcdir)/include/nbdkit-filter.h + +nbdkit_log_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include +nbdkit_log_filter_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_log_filter_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms + +if HAVE_POD + +man_MANS = nbdkit-log-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-log-filter.1: nbdkit-log-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/log/Makefile.in b/filters/log/Makefile.in new file mode 100644 index 0000000..548a225 --- /dev/null +++ b/filters/log/Makefile.in @@ -0,0 +1,879 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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exceeded. +.NOEXPORT: diff --git a/filters/log/log.c b/filters/log/log.c new file mode 100644 index 0000000..02a2522 --- /dev/null +++ b/filters/log/log.c @@ -0,0 +1,421 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + +static uint64_t connections; +static char *logfilename; +static FILE *logfile; +static int append; +static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; + +static void +log_unload (void) +{ + if (logfilename) + fclose (logfile); + free (logfilename); +} + +/* Called for each key=value passed on the command line. */ +static int +log_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "logfile") == 0) { + free (logfilename); + logfilename = strdup (value); + if (!logfilename) { + nbdkit_error ("strdup: %m"); + return -1; + } + return 0; + } + if (strcmp (key, "logappend") == 0) { + append = nbdkit_parse_bool (value); + if (append < 0) + return -1; + return 0; + } + return next (nxdata, key, value); +} + +/* Open the logfile. */ +static int +log_config_complete (nbdkit_next_config_complete *next, void *nxdata) +{ + if (!logfilename) { + nbdkit_error ("missing logfile= parameter for the log filter"); + return -1; + } + logfile = fopen (logfilename, append ? "a" : "w"); + if (!logfile) { + nbdkit_error ("fopen: %m"); + return -1; + } + + return next (nxdata); +} + +#define log_config_help \ + "logfile= (required) The file to place the log in.\n" \ + "logappend= True to append to the log (default false).\n" + +struct handle { + uint64_t connection; + uint64_t id; +}; + +/* Compute the next id number on the current connection. */ +static uint64_t +get_id (struct handle *h) +{ + uint64_t r; + + pthread_mutex_lock (&lock); + r = ++h->id; + pthread_mutex_unlock (&lock); + return r; +} + +/* Output a timestamp and the log message. */ +static void __attribute__ ((format (printf, 4, 5))) +output (struct handle *h, const char *act, uint64_t id, const char *fmt, ...) +{ + va_list args; + struct timeval tv; + struct tm tm; + char timestamp[27] = "Time unknown"; + + /* Logging is best effort, so ignore failure to get timestamp */ + if (!gettimeofday (&tv, NULL)) + { + size_t s; + + gmtime_r (&tv.tv_sec, &tm); + s = strftime (timestamp, sizeof timestamp - sizeof ".000000" + 1, + "%F %T", &tm); + assert (s); + snprintf (timestamp + s, sizeof timestamp - s, ".%06ld", + 0L + tv.tv_usec); + } + flockfile (logfile); + fprintf (logfile, "%s connection=%" PRIu64 " %s ", timestamp, h->connection, + act); + if (id) + fprintf (logfile, "id=%" PRIu64 " ", id); + va_start (args, fmt); + vfprintf (logfile, fmt, args); + va_end (args); + fputc ('\n', logfile); + fflush (logfile); + funlockfile (logfile); +} + +/* Shared code for a nicer log of return value */ +static void +output_return (struct handle *h, const char *act, uint64_t id, int r, int *err) +{ + const char *s = "Other=>EINVAL"; + + /* Only decode what connections.c:nbd_errno() recognizes */ + if (r == -1) { + switch (*err) { + case EROFS: + s = "EROFS=>EPERM"; + break; + case EPERM: + s = "EPERM"; + break; + case EIO: + s = "EIO"; + break; + case ENOMEM: + s = "ENOMEM"; + break; +#ifdef EDQUOT + case EDQUOT: + s = "EDQUOT=>ENOSPC"; + break; +#endif + case EFBIG: + s = "EFBIG=>ENOSPC"; + break; + case ENOSPC: + s = "ENOSPC"; + break; +#ifdef ESHUTDOWN + case ESHUTDOWN: + s = "ESHUTDOWN"; + break; +#endif + case EINVAL: + s = "EINVAL"; + break; + } + } + else { + s = "Success"; + } + output (h, act, id, "return=%d (%s)", r, s); +} + +/* Open a connection. */ +static void * +log_open (nbdkit_next_open *next, void *nxdata, int readonly) +{ + struct handle *h; + + if (next (nxdata, readonly) == -1) + return NULL; + + h = malloc (sizeof *h); + if (h == NULL) { + nbdkit_error ("malloc: %m"); + return NULL; + } + + pthread_mutex_lock (&lock); + h->connection = ++connections; + pthread_mutex_unlock (&lock); + h->id = 0; + return h; +} + +static void +log_close (void *handle) +{ + struct handle *h = handle; + + free (h); +} + +static int +log_prepare (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle) +{ + struct handle *h = handle; + int64_t size = next_ops->get_size (nxdata); + int w = next_ops->can_write (nxdata); + int f = next_ops->can_flush (nxdata); + int r = next_ops->is_rotational (nxdata); + int t = next_ops->can_trim (nxdata); + int z = next_ops->can_zero (nxdata); + int F = next_ops->can_fua (nxdata); + + if (size < 0 || w < 0 || f < 0 || r < 0 || t < 0 || z < 0 || F < 0) + return -1; + + output (h, "Connect", 0, "size=0x%" PRIx64 " write=%d flush=%d " + "rotational=%d trim=%d zero=%d fua=%d", size, w, f, r, t, z, F); + return 0; +} + +static int +log_finalize (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle) +{ + struct handle *h = handle; + + output (h, "Disconnect", 0, "transactions=%" PRId64, h->id); + return 0; +} + +/* Read data. */ +static int +log_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offs, + uint32_t flags, int *err) +{ + struct handle *h = handle; + uint64_t id = get_id (h); + int r; + + assert (!flags); + output (h, "Read", id, "offset=0x%" PRIx64 " count=0x%x ...", + offs, count); + r = next_ops->pread (nxdata, buf, count, offs, flags, err); + output_return (h, "...Read", id, r, err); + return r; +} + +/* Write data. */ +static int +log_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, const void *buf, uint32_t count, uint64_t offs, + uint32_t flags, int *err) +{ + struct handle *h = handle; + uint64_t id = get_id (h); + int r; + + assert (!(flags & ~NBDKIT_FLAG_FUA)); + output (h, "Write", id, "offset=0x%" PRIx64 " count=0x%x fua=%d ...", + offs, count, !!(flags & NBDKIT_FLAG_FUA)); + r = next_ops->pwrite (nxdata, buf, count, offs, flags, err); + output_return (h, "...Write", id, r, err); + return r; +} + +/* Flush. */ +static int +log_flush (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle, + uint32_t flags, int *err) +{ + struct handle *h = handle; + uint64_t id = get_id (h); + int r; + + assert (!flags); + output (h, "Flush", id, "..."); + r = next_ops->flush (nxdata, flags, err); + output_return (h, "...Flush", id, r, err); + return r; +} + +/* Trim data. */ +static int +log_trim (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + struct handle *h = handle; + uint64_t id = get_id (h); + int r; + + assert (!(flags & ~NBDKIT_FLAG_FUA)); + output (h, "Trim", id, "offset=0x%" PRIx64 " count=0x%x fua=%d ...", + offs, count, !!(flags & NBDKIT_FLAG_FUA)); + r = next_ops->trim (nxdata, count, offs, flags, err); + output_return (h, "...Trim", id, r, err); + return r; +} + +/* Zero data. */ +static int +log_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + struct handle *h = handle; + uint64_t id = get_id (h); + int r; + + assert (!(flags & ~(NBDKIT_FLAG_FUA | NBDKIT_FLAG_MAY_TRIM))); + output (h, "Zero", id, "offset=0x%" PRIx64 " count=0x%x trim=%d fua=%d ...", + offs, count, !!(flags & NBDKIT_FLAG_MAY_TRIM), + !!(flags & NBDKIT_FLAG_FUA)); + r = next_ops->zero (nxdata, count, offs, flags, err); + output_return (h, "...Zero", id, r, err); + return r; +} + +/* Extents. */ +static int +log_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + struct nbdkit_extents *extents, int *err) +{ + struct handle *h = handle; + uint64_t id = get_id (h); + int r; + + assert (!(flags & ~(NBDKIT_FLAG_REQ_ONE))); + output (h, "Extents", id, + "offset=0x%" PRIx64 " count=0x%x req_one=%d ...", + offs, count, !!(flags & NBDKIT_FLAG_REQ_ONE)); + r = next_ops->extents (nxdata, count, offs, flags, extents, err); + if (r == -1) + output_return (h, "...Extents", id, r, err); + else { + FILE *fp; + char *extents_str = NULL; + size_t i, n, len = 0; + + fp = open_memstream (&extents_str, &len); + if (fp != NULL) { + n = nbdkit_extents_count (extents); + for (i = 0; i < n; ++i) { + struct nbdkit_extent e = nbdkit_get_extent (extents, i); + if (i > 0) + fprintf (fp, ", "); + fprintf (fp, "{ offset=0x%" PRIx64 ", length=0x%" PRIx64 ", " + "hole=%d, zero=%d }", + e.offset, e.length, + !!(e.type & NBDKIT_EXTENT_HOLE), + !!(e.type & NBDKIT_EXTENT_ZERO)); + } + + fclose (fp); + } + + output (h, "...Extents", id, "extents=[%s] return=0", + extents_str ? extents_str : "(null)"); + free (extents_str); + } + return r; +} + +static struct nbdkit_filter filter = { + .name = "log", + .longname = "nbdkit log filter", + .version = PACKAGE_VERSION, + .config = log_config, + .config_complete = log_config_complete, + .config_help = log_config_help, + .unload = log_unload, + .open = log_open, + .close = log_close, + .prepare = log_prepare, + .finalize = log_finalize, + .pread = log_pread, + .pwrite = log_pwrite, + .flush = log_flush, + .trim = log_trim, + .zero = log_zero, + .extents = log_extents, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/log/nbdkit-log-filter.pod b/filters/log/nbdkit-log-filter.pod new file mode 100644 index 0000000..e391046 --- /dev/null +++ b/filters/log/nbdkit-log-filter.pod @@ -0,0 +1,76 @@ +=head1 NAME + +nbdkit-log-filter - nbdkit log filter + +=head1 SYNOPSIS + + nbdkit --filter=log plugin logfile=FILE [logappend=BOOL] [plugin-args...] + +=head1 DESCRIPTION + +C is a filter that logs all transactions. When +used as the first filter, it can show the original client requests; as +a later filter, it can show how earlier filters have modified the +original request. The log results are placed in a user-specified +file; for more details on the log format, see L. Note that +using C produces much more verbose logging details to +stderr about every aspect of nbdkit operation, although this requires +running nbdkit in the foreground; while the log filter is designed to +work even when nbdkit is run as a daemon. + +=head1 PARAMETERS + +The nbdkit-log-filter requires a single parameter C which +specifies the path of the file to use for logging. If the file +already exists, it will be truncated unless the C parameter +was specified with a value that can be parsed as a boolean true. + +=head1 EXAMPLES + +Serve the file F, and log each client transaction in the +file F: + + nbdkit --filter=log file disk.img logfile=disk.log + +Repeat the task, but with the cow (copy-on-write) filter to perform +local caching of data served from the original plugin: + + nbdkit --filter=cow --filter=log file disk.img logfile=disk.log2 + +After running a client that performs the same operations under each of +the two servers, you can compare F and F to see +the impact of the caching. + +=head1 FILES + +This filter writes to the file specified by the C +parameter. All lines include a timestamp, a connection counter, then +details about the command. The following actions are logged: Connect, +Read, Write, Zero, Trim, Extents, Flush, and Disconnect. Except for +Connect and Disconnect, an event is logged across two lines for call +and return value, to allow tracking duration and tracing any parallel +execution, using id for correlation (incremented per action on the +connection). + +An example logging session of a client that performs a single +successful read is: + + 2018-01-27 20:38:22.959984 connection=1 Connect size=0x400 write=1 flush=1 rotational=0 trim=0 zero=1 fua=1 + 2018-01-27 20:38:23.001720 connection=1 Read id=1 offset=0x0 count=0x100 ... + 2018-01-27 20:38:23.001995 connection=1 ...Read id=1 return=0 (Success) + 2018-01-27 20:38:23.044259 connection=1 Disconnect transactions=1 + +=head1 SEE ALSO + +L, +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/filters/noextents/Makefile.am b/filters/noextents/Makefile.am new file mode 100644 index 0000000..fb97d77 --- /dev/null +++ b/filters/noextents/Makefile.am @@ -0,0 +1,60 @@ +# nbdkit +# Copyright (C) 2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-noextents-filter.pod + +filter_LTLIBRARIES = nbdkit-noextents-filter.la + +nbdkit_noextents_filter_la_SOURCES = \ + noextents.c \ + $(top_srcdir)/include/nbdkit-filter.h + +nbdkit_noextents_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include +nbdkit_noextents_filter_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_noextents_filter_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms + +if HAVE_POD + +man_MANS = nbdkit-noextents-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-noextents-filter.1: nbdkit-noextents-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/noextents/Makefile.in b/filters/noextents/Makefile.in new file mode 100644 index 0000000..41ab18c --- /dev/null +++ b/filters/noextents/Makefile.in @@ -0,0 +1,882 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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uninstall-man1 + +.PRECIOUS: Makefile + + +@HAVE_POD_TRUE@nbdkit-noextents-filter.1: nbdkit-noextents-filter.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/noextents/nbdkit-noextents-filter.pod b/filters/noextents/nbdkit-noextents-filter.pod new file mode 100644 index 0000000..aa2e9e2 --- /dev/null +++ b/filters/noextents/nbdkit-noextents-filter.pod @@ -0,0 +1,34 @@ +=head1 NAME + +nbdkit-noextents-filter - disable extents in the underlying plugin + +=head1 SYNOPSIS + + nbdkit --filter=noextents plugin + +=head1 DESCRIPTION + +“Extents” are a feature of the NBD protocol / nbdkit which allow the +client to detect sparse regions of the underlying disk. +C disables this so that the plugin appears to +be fully allocated. + +=head1 PARAMETERS + +There are no parameters specific to nbdkit-noextents-filter. Any +parameters are passed through to and processed by the underlying +plugin in the normal way. + +=head1 SEE ALSO + +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2019 Red Hat Inc. diff --git a/filters/noextents/noextents.c b/filters/noextents/noextents.c new file mode 100644 index 0000000..59f4c37 --- /dev/null +++ b/filters/noextents/noextents.c @@ -0,0 +1,53 @@ +/* nbdkit + * Copyright (C) 2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + +static int +noextents_can_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + return 0; +} + +static struct nbdkit_filter filter = { + .name = "noextents", + .longname = "nbdkit noextents filter", + .version = PACKAGE_VERSION, + .can_extents = noextents_can_extents, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/nozero/Makefile.am b/filters/nozero/Makefile.am new file mode 100644 index 0000000..416cbad --- /dev/null +++ b/filters/nozero/Makefile.am @@ -0,0 +1,61 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-nozero-filter.pod + +filter_LTLIBRARIES = nbdkit-nozero-filter.la + +nbdkit_nozero_filter_la_SOURCES = \ + nozero.c \ + $(top_srcdir)/include/nbdkit-filter.h + +nbdkit_nozero_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include +nbdkit_nozero_filter_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_nozero_filter_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms + +if HAVE_POD + +man_MANS = nbdkit-nozero-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-nozero-filter.1: nbdkit-nozero-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/nozero/Makefile.in b/filters/nozero/Makefile.in new file mode 100644 index 0000000..1bd5088 --- /dev/null +++ b/filters/nozero/Makefile.in @@ -0,0 +1,882 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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+@HAVE_POD_TRUE@nbdkit-nozero-filter.1: nbdkit-nozero-filter.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/nozero/nbdkit-nozero-filter.pod b/filters/nozero/nbdkit-nozero-filter.pod new file mode 100644 index 0000000..7f6fd45 --- /dev/null +++ b/filters/nozero/nbdkit-nozero-filter.pod @@ -0,0 +1,58 @@ +=head1 NAME + +nbdkit-nozero-filter - nbdkit nozero filter + +=head1 SYNOPSIS + + nbdkit --filter=nozero plugin [zeromode=MODE] [plugin-args...] + +=head1 DESCRIPTION + +C is a filter that intentionally disables +efficient handling of sparse file holes (ranges of all-zero bytes) +across the NBD protocol. It is mainly useful for evaluating timing +differences between naive vs. sparse-aware connections, and for +testing client or server fallbacks. + +=head1 PARAMETERS + +=over 4 + +=item B + +Optional, controls which mode the filter will use. Mode B +(default) means that zero support is not advertised to the client; +mode B means that zero support is emulated by the filter +using the plugin's C callback, regardless of whether the +plugin itself implemented the C callback with a more efficient +way to write zeros. + +=back + +=head1 EXAMPLES + +Serve the file F, but force the client to write zeroes +explicitly rather than with C: + + nbdkit --filter=nozero file disk.img + +Serve the file F, allowing the client to take advantage of +less network traffic via C, but still forcing +the data to be written explicitly rather than punching any holes: + + nbdkit --filter=nozero file zeromode=emulate disk.img + +=head1 SEE ALSO + +L, +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/filters/nozero/nozero.c b/filters/nozero/nozero.c new file mode 100644 index 0000000..3ec6346 --- /dev/null +++ b/filters/nozero/nozero.c @@ -0,0 +1,106 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include + +#include + +#include "minmax.h" + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + +#define MAX_WRITE (64 * 1024 * 1024) + +static char buffer[MAX_WRITE]; +static bool emulate; + +static int +nozero_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "zeromode") == 0) { + if (strcmp (value, "emulate") == 0) + emulate = true; + else if (strcmp (value, "none") != 0) { + nbdkit_error ("unknown zeromode '%s'", value); + return -1; + } + return 0; + } + return next (nxdata, key, value); +} + +#define nozero_config_help \ + "zeromode= Either 'none' (default) or 'emulate'.\n" \ + +/* Advertise desired WRITE_ZEROES mode. */ +static int +nozero_can_zero (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle) +{ + return emulate; +} + +static int +nozero_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + assert (emulate); + while (count) { + uint32_t size = MIN (count, MAX_WRITE); + if (next_ops->pwrite (nxdata, buffer, size, offs, + flags & ~NBDKIT_FLAG_MAY_TRIM, err) == -1) + return -1; + offs += size; + count -= size; + } + return 0; +} + +static struct nbdkit_filter filter = { + .name = "nozero", + .longname = "nbdkit nozero filter", + .version = PACKAGE_VERSION, + .config = nozero_config, + .config_help = nozero_config_help, + .can_zero = nozero_can_zero, + .zero = nozero_zero, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/offset/Makefile.am b/filters/offset/Makefile.am new file mode 100644 index 0000000..14591bb --- /dev/null +++ b/filters/offset/Makefile.am @@ -0,0 +1,60 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-offset-filter.pod + +filter_LTLIBRARIES = nbdkit-offset-filter.la + +nbdkit_offset_filter_la_SOURCES = \ + offset.c \ + $(top_srcdir)/include/nbdkit-filter.h + +nbdkit_offset_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include +nbdkit_offset_filter_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_offset_filter_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms + +if HAVE_POD + +man_MANS = nbdkit-offset-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-offset-filter.1: nbdkit-offset-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/offset/Makefile.in b/filters/offset/Makefile.in new file mode 100644 index 0000000..0e20e04 --- /dev/null +++ b/filters/offset/Makefile.in @@ -0,0 +1,881 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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$(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/offset/nbdkit-offset-filter.pod b/filters/offset/nbdkit-offset-filter.pod new file mode 100644 index 0000000..a232e46 --- /dev/null +++ b/filters/offset/nbdkit-offset-filter.pod @@ -0,0 +1,81 @@ +=head1 NAME + +nbdkit-offset-filter - nbdkit offset filter + +=head1 SYNOPSIS + + nbdkit --filter=offset plugin offset=OFFSET range=LENGTH [plugin-args...] + +=head1 DESCRIPTION + +C is a filter that limits requests to the byte +range C<[offset .. offset+range-1]> within another plugin. + +=head1 PARAMETERS + +=over 4 + +=item BOFFSET + +The start offset. The offset must be E 0. + +This parameter is optional. If not given then C is assumed. + +=item BLENGTH + +The length of data to serve. + +This parameter is optional. If not given then the range is served +starting from the offset through to the end of the underlying +file/device. + +=back + +Note it is an error if the offset and/or range specify data which lies +beyond the end of the underlying device. Use +L to truncate or extend the size of +plugins. + +=head1 EXAMPLES + +=head2 Serve part of a file + +Using L, serve the file C starting at +offset C<1M>. The total length served is C<100M> (the underlying file +must therefore be at least C<101M> in length): + + nbdkit --filter=offset file disk.img offset=1M range=100M + +=head2 Serve a single partition + +I.> + +One way to serve a single partition from a disk is to find the start +and length of the partition, eg using: + + $ parted disk.img -- unit b print + ... + Number Start End Size Type File system Flags + 1 65536B 104792575B 104727040B primary ext2 + +You can then serve the partition only using: + + nbdkit --filter=offset file disk.img offset=65536 range=104727040 + +=head1 SEE ALSO + +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/filters/offset/offset.c b/filters/offset/offset.c new file mode 100644 index 0000000..ebd590b --- /dev/null +++ b/filters/offset/offset.c @@ -0,0 +1,183 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include + +#include + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + +static int64_t offset = 0, range = -1; + +/* Called for each key=value passed on the command line. */ +static int +offset_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "offset") == 0) { + offset = nbdkit_parse_size (value); + if (offset == -1) + return -1; + return 0; + } + else if (strcmp (key, "range") == 0) { + range = nbdkit_parse_size (value); + if (range == -1) + return -1; + return 0; + } + else + return next (nxdata, key, value); +} + +/* Check the user did pass both parameters. */ +static int +offset_config_complete (nbdkit_next_config_complete *next, void *nxdata) +{ + return next (nxdata); +} + +#define offset_config_help \ + "offset= (required) The start offset to serve.\n" \ + "range= The total size to serve." + +/* Get the file size. */ +static int64_t +offset_get_size (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + int64_t real_size = next_ops->get_size (nxdata); + + if (range >= 0) { + if (offset + range > real_size) { + nbdkit_error ("offset+range is larger than the real size " + "of the underlying file or device"); + return -1; + } + return range; + } + else + return real_size - offset; +} + +/* Read data. */ +static int +offset_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offs, + uint32_t flags, int *err) +{ + return next_ops->pread (nxdata, buf, count, offs + offset, flags, err); +} + +/* Write data. */ +static int +offset_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + const void *buf, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + return next_ops->pwrite (nxdata, buf, count, offs + offset, flags, err); +} + +/* Trim data. */ +static int +offset_trim (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + return next_ops->trim (nxdata, count, offs + offset, flags, err); +} + +/* Zero data. */ +static int +offset_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + return next_ops->zero (nxdata, count, offs + offset, flags, err); +} + +/* Extents. */ +static int +offset_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + struct nbdkit_extents *extents, int *err) +{ + size_t i; + struct nbdkit_extents *extents2; + struct nbdkit_extent e; + int64_t real_size = next_ops->get_size (nxdata); + + extents2 = nbdkit_extents_new (offs + offset, real_size - offset); + if (extents2 == NULL) { + *err = errno; + return -1; + } + if (next_ops->extents (nxdata, count, offs + offset, + flags, extents2, err) == -1) + goto error; + + for (i = 0; i < nbdkit_extents_count (extents2); ++i) { + e = nbdkit_get_extent (extents2, i); + e.offset -= offset; + if (nbdkit_add_extent (extents, e.offset, e.length, e.type) == -1) + goto error; + } + nbdkit_extents_free (extents2); + return 0; + + error: + nbdkit_extents_free (extents2); + return -1; +} + +static struct nbdkit_filter filter = { + .name = "offset", + .longname = "nbdkit offset filter", + .version = PACKAGE_VERSION, + .config = offset_config, + .config_complete = offset_config_complete, + .config_help = offset_config_help, + .get_size = offset_get_size, + .pread = offset_pread, + .pwrite = offset_pwrite, + .trim = offset_trim, + .zero = offset_zero, + .extents = offset_extents, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/partition/Makefile.am b/filters/partition/Makefile.am new file mode 100644 index 0000000..6fbbe17 --- /dev/null +++ b/filters/partition/Makefile.am @@ -0,0 +1,65 @@ +# nbdkit +# Copyright (C) 2018-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-partition-filter.pod + +filter_LTLIBRARIES = nbdkit-partition-filter.la + +nbdkit_partition_filter_la_SOURCES = \ + partition.c \ + partition.h \ + partition-gpt.c \ + partition-mbr.c \ + $(top_srcdir)/include/nbdkit-filter.h + +nbdkit_partition_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/gpt \ + -I$(top_srcdir)/common/include +nbdkit_partition_filter_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_partition_filter_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms + +if HAVE_POD + +man_MANS = nbdkit-partition-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-partition-filter.1: nbdkit-partition-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/partition/Makefile.in b/filters/partition/Makefile.in new file mode 100644 index 0000000..f74fa65 --- /dev/null +++ b/filters/partition/Makefile.in @@ -0,0 +1,911 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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+nbdkit-partition-filter - nbdkit partition filter + +=head1 SYNOPSIS + + nbdkit --filter=partition plugin partition=PART [plugin-args...] + +=head1 DESCRIPTION + +C is a filter that limits requests to a +single partition within a disk image that is served by another plugin. + +Partition numbers are specified by the required C +parameter, and count from 1. + +This works like the C option. + +The opposite of this filter is L which +adds a virtual partition table to a file or files. + +=head1 PARAMETERS + +=over 4 + +=item BPART + +The partition number to serve, counting from 1. + +This parameter is required. + +=back + +=head1 EXAMPLE + +F is a partitioned disk image (eg. a virtual machine disk +image). To serve the first partition only use: + + nbdkit --filter=partition file disk.img partition=1 + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/filters/partition/partition-gpt.c b/filters/partition/partition-gpt.c new file mode 100644 index 0000000..aecd777 --- /dev/null +++ b/filters/partition/partition-gpt.c @@ -0,0 +1,120 @@ +/* nbdkit + * Copyright (C) 2018-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include + +#include + +#include "byte-swapping.h" +#include "gpt.h" + +#include "partition.h" + +static void +get_gpt_header (uint8_t *sector, + uint32_t *nr_partition_entries, + uint32_t *size_partition_entry) +{ + struct gpt_header *header = (struct gpt_header *) sector; + *nr_partition_entries = le32toh (header->nr_partition_entries); + *size_partition_entry = le32toh (header->size_partition_entry); +} + +static void +get_gpt_partition (uint8_t *bytes, + uint8_t *partition_type_guid, + uint64_t *first_lba, uint64_t *last_lba) +{ + struct gpt_entry *entry = (struct gpt_entry *) bytes; + memcpy (partition_type_guid, entry->partition_type_guid, 16); + *first_lba = le64toh (entry->first_lba); + *last_lba = le64toh (entry->last_lba); +} + +int +find_gpt_partition (struct nbdkit_next_ops *next_ops, void *nxdata, + int64_t size, uint8_t *header_bytes, + int64_t *offset_r, int64_t *range_r) +{ + uint8_t partition_bytes[128]; + uint32_t nr_partition_entries, size_partition_entry; + uint8_t partition_type_guid[16]; + uint64_t first_lba, last_lba; + int i; + int err; + + get_gpt_header (header_bytes, &nr_partition_entries, &size_partition_entry); + if (partnum > nr_partition_entries) { + nbdkit_error ("GPT partition number out of range"); + return -1; + } + + if (size_partition_entry < 128) { + nbdkit_error ("GPT partition entry size is < 128 bytes"); + return -1; + } + + /* Check the disk is large enough to contain the partition table + * array (twice) plus other GPT overheads. Otherwise it is likely + * that the GPT header is bogus. + */ + if (size < INT64_C(3)*SECTOR_SIZE + + INT64_C(2) * nr_partition_entries * size_partition_entry) { + nbdkit_error ("GPT partition table is too large for this disk"); + return -1; + } + + for (i = 0; i < nr_partition_entries; ++i) { + /* We already checked these are within bounds above. */ + if (next_ops->pread (nxdata, partition_bytes, sizeof partition_bytes, + 2*SECTOR_SIZE + i*size_partition_entry, 0, + &err) == -1) + return -1; + get_gpt_partition (partition_bytes, + partition_type_guid, &first_lba, &last_lba); + if (memcmp (partition_type_guid, + "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 16) != 0 && + partnum == i+1) { + *offset_r = first_lba * SECTOR_SIZE; + *range_r = (1 + last_lba - first_lba) * SECTOR_SIZE; + return 0; + } + } + + nbdkit_error ("GPT partition %d not found", partnum); + return -1; +} diff --git a/filters/partition/partition-mbr.c b/filters/partition/partition-mbr.c new file mode 100644 index 0000000..9925d52 --- /dev/null +++ b/filters/partition/partition-mbr.c @@ -0,0 +1,193 @@ +/* nbdkit + * Copyright (C) 2018-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include + +#include + +#include "byte-swapping.h" +#include "isaligned.h" + +#include "partition.h" + +/* See also linux.git/block/partitions/msdos.c:is_extended_partition */ +#define is_extended(byte) ((byte) == 0x5 || (byte) == 0xf || (byte) == 0x85) + +struct mbr_partition { + uint8_t part_type_byte; + uint32_t start_sector; + uint32_t nr_sectors; +}; + +static void +get_mbr_partition (uint8_t *sector, int i, struct mbr_partition *part) +{ + int offset = 0x1BE + i*0x10; + + part->part_type_byte = sector[offset+4]; + memcpy (&part->start_sector, §or[offset+8], 4); + part->start_sector = le32toh (part->start_sector); + memcpy (&part->nr_sectors, §or[offset+0xC], 4); + part->nr_sectors = le32toh (part->nr_sectors); +} + +int +find_mbr_partition (struct nbdkit_next_ops *next_ops, void *nxdata, + int64_t size, uint8_t *mbr, + int64_t *offset_r, int64_t *range_r) +{ + int i; + struct mbr_partition partition; + uint32_t ep_start_sector, ep_nr_sectors; + uint64_t ebr, next_ebr; + uint8_t sector[SECTOR_SIZE]; + + /* Primary partition. */ + if (partnum <= 4) { + for (i = 0; i < 4; ++i) { + get_mbr_partition (mbr, i, &partition); + if (partition.nr_sectors > 0 && + partition.part_type_byte != 0 && + !is_extended (partition.part_type_byte) && + partnum == i+1) { + *offset_r = partition.start_sector * SECTOR_SIZE; + *range_r = partition.nr_sectors * SECTOR_SIZE; + return 0; + } + } + + /* Not found falls through to error case at the end of the function. */ + } + + /* Logical partition. */ + else { + /* Find the extended partition in the primary partition table. */ + for (i = 0; i < 4; ++i) { + get_mbr_partition (mbr, i, &partition); + if (partition.nr_sectors > 0 && + is_extended (partition.part_type_byte)) { + goto found_extended; + } + } + nbdkit_error ("MBR logical partition selected, " + "but there is no extended partition in the partition table"); + return -1; + + found_extended: + ep_start_sector = partition.start_sector; + ep_nr_sectors = partition.nr_sectors; + ebr = ep_start_sector * (uint64_t)SECTOR_SIZE; + + /* This loop will terminate eventually because we only accept + * links which strictly increase the EBR pointer. There are valid + * partition tables which do odd things like arranging the + * partitions in reverse order, but we will not accept them here. + */ + for (i = 5; ; ++i) { + /* Check that the ebr is aligned and pointing inside the disk + * and doesn't point to the MBR. + */ + if (!IS_ALIGNED (ebr, SECTOR_SIZE) || + ebr < SECTOR_SIZE || ebr >= size-SECTOR_SIZE) { + nbdkit_error ("invalid EBR chain: " + "next EBR boot sector is located outside disk boundary"); + return -1; + } + + /* Read the EBR sector. */ + nbdkit_debug ("partition: reading EBR at %" PRIi64, ebr); + if (next_ops->pread (nxdata, sector, sizeof sector, ebr, 0, + &errno) == -1) + return -1; + + if (partnum == i) { + uint64_t offset, range; + + /* First entry in EBR points to the logical partition. */ + get_mbr_partition (sector, 0, &partition); + + /* The first entry start sector is relative to the EBR. */ + offset = ebr + partition.start_sector * (uint64_t)SECTOR_SIZE; + range = partition.nr_sectors * (uint64_t)SECTOR_SIZE; + + /* Logical partition cannot be before the corresponding EBR, + * and it cannot extend beyond the enclosing extended + * partition. + */ + if (offset <= ebr || + offset + range > + ((uint64_t)ep_start_sector + ep_nr_sectors) * SECTOR_SIZE) { + nbdkit_error ("logical partition start or size out of range " + "(offset=%" PRIu64 ", range=%" PRIu64 ", " + "ep:startsect=%" PRIu32 ", ep:nrsects=%" PRIu32 ")", + offset, range, ep_start_sector, ep_nr_sectors); + return -1; + } + *offset_r = offset; + *range_r = range; + return 0; + } + + /* Second entry in EBR links to the next EBR. */ + get_mbr_partition (sector, 1, &partition); + + /* All zeroes means the end of the chain. */ + if (partition.start_sector == 0 && partition.nr_sectors == 0) + break; + + /* The second entry start sector is relative to the start to the + * extended partition. + */ + next_ebr = + ((uint64_t)ep_start_sector + partition.start_sector) * SECTOR_SIZE; + + /* Make sure the next EBR > current EBR. */ + if (next_ebr <= ebr) { + nbdkit_error ("invalid EBR chain: " + "next EBR %" PRIu64 " <= current EBR %" PRIu64, + next_ebr, ebr); + return -1; + } + ebr = next_ebr; + } + } + + nbdkit_error ("MBR partition %d not found", partnum); + return -1; +} diff --git a/filters/partition/partition.c b/filters/partition/partition.c new file mode 100644 index 0000000..ab692ba --- /dev/null +++ b/filters/partition/partition.c @@ -0,0 +1,277 @@ +/* nbdkit + * Copyright (C) 2018-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include + +#include + +#include "byte-swapping.h" + +#include "partition.h" + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + +int partnum = -1; + +/* Called for each key=value passed on the command line. */ +static int +partition_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "partition") == 0) { + if (sscanf (value, "%d", &partnum) != 1 || partnum <= 0) { + nbdkit_error ("invalid partition number"); + return -1; + } + return 0; + } + else + return next (nxdata, key, value); +} + +/* Check the user did pass partition number. */ +static int +partition_config_complete (nbdkit_next_config_complete *next, void *nxdata) +{ + if (partnum == -1) { + nbdkit_error ("you must supply the partition parameter on the command line"); + return -1; + } + + return next (nxdata); +} + +#define partition_config_help \ + "partition= (required) The partition number (counting from 1)." + +struct handle { + int64_t offset; + int64_t range; +}; + +/* Open a connection. */ +static void * +partition_open (nbdkit_next_open *next, void *nxdata, int readonly) +{ + struct handle *h; + + if (next (nxdata, readonly) == -1) + return NULL; + + h = malloc (sizeof *h); + if (h == NULL) { + nbdkit_error ("malloc: %m"); + return NULL; + } + + /* These are set in the prepare method. */ + h->offset = h->range = -1; + return h; +} + +static void +partition_close (void *handle) +{ + struct handle *h = handle; + + free (h); +} + +static int +partition_prepare (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + struct handle *h = handle; + int64_t size; + uint8_t lba01[2*SECTOR_SIZE]; /* LBA 0 and 1 */ + int r; + int err; + + size = next_ops->get_size (nxdata); + if (size == -1) + return -1; + if (size < 2 * SECTOR_SIZE) { + nbdkit_error ("disk is too small to be a partitioned disk"); + return -1; + } + + nbdkit_debug ("disk size=%" PRIi64, size); + + if (next_ops->pread (nxdata, lba01, sizeof lba01, 0, 0, &err) == -1) + return -1; + + /* Is it GPT? */ + if (size >= 2 * 34 * SECTOR_SIZE && + memcmp (&lba01[SECTOR_SIZE], "EFI PART", 8) == 0) + r = find_gpt_partition (next_ops, nxdata, size, &lba01[SECTOR_SIZE], + &h->offset, &h->range); + /* Is it MBR? */ + else if (lba01[0x1fe] == 0x55 && lba01[0x1ff] == 0xAA) + r = find_mbr_partition (next_ops, nxdata, size, lba01, + &h->offset, &h->range); + else { + nbdkit_error ("disk does not contain MBR or GPT partition table signature"); + r = -1; + } + if (r == -1) + return -1; + + /* The find_*_partition functions set h->offset & h->range to the + * partition boundaries. We additionally check that they are inside + * the underlying disk. + */ + if (h->offset < 0 || h->range < 0 || h->offset + h->range > size) { + nbdkit_error ("partition is outside the disk"); + return -1; + } + + nbdkit_debug ("partition offset=%" PRIi64 " range=%" PRIi64, + h->offset, h->range); + + return 0; +} + +/* Get the file size. */ +static int64_t +partition_get_size (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + struct handle *h = handle; + + return h->range; +} + +/* Read data. */ +static int +partition_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offs, + uint32_t flags, int *err) +{ + struct handle *h = handle; + + return next_ops->pread (nxdata, buf, count, offs + h->offset, flags, err); +} + +/* Write data. */ +static int +partition_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + const void *buf, uint32_t count, uint64_t offs, + uint32_t flags, int *err) +{ + struct handle *h = handle; + + return next_ops->pwrite (nxdata, buf, count, offs + h->offset, flags, err); +} + +/* Trim data. */ +static int +partition_trim (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + struct handle *h = handle; + + return next_ops->trim (nxdata, count, offs + h->offset, flags, err); +} + +/* Zero data. */ +static int +partition_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + int *err) +{ + struct handle *h = handle; + + return next_ops->zero (nxdata, count, offs + h->offset, flags, err); +} + +/* Extents. */ +static int +partition_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offs, uint32_t flags, + struct nbdkit_extents *extents, int *err) +{ + struct handle *h = handle; + size_t i; + struct nbdkit_extents *extents2; + struct nbdkit_extent e; + int64_t real_size = next_ops->get_size (nxdata); + + extents2 = nbdkit_extents_new (offs + h->offset, real_size - h->offset); + if (extents2 == NULL) { + *err = errno; + return -1; + } + if (next_ops->extents (nxdata, count, offs + h->offset, + flags, extents2, err) == -1) + goto error; + + for (i = 0; i < nbdkit_extents_count (extents2); ++i) { + e = nbdkit_get_extent (extents2, i); + e.offset -= h->offset; + if (nbdkit_add_extent (extents, e.offset, e.length, e.type) == -1) + goto error; + } + nbdkit_extents_free (extents2); + return 0; + + error: + nbdkit_extents_free (extents2); + return -1; +} + +static struct nbdkit_filter filter = { + .name = "partition", + .longname = "nbdkit partition filter", + .version = PACKAGE_VERSION, + .config = partition_config, + .config_complete = partition_config_complete, + .config_help = partition_config_help, + .open = partition_open, + .prepare = partition_prepare, + .close = partition_close, + .get_size = partition_get_size, + .pread = partition_pread, + .pwrite = partition_pwrite, + .trim = partition_trim, + .zero = partition_zero, + .extents = partition_extents, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/partition/partition.h b/filters/partition/partition.h new file mode 100644 index 0000000..e25a695 --- /dev/null +++ b/filters/partition/partition.h @@ -0,0 +1,49 @@ +/* nbdkit + * Copyright (C) 2018-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_PARTITION_H +#define NBDKIT_PARTITION_H + +#include + +#define SECTOR_SIZE 512 + +extern int partnum; + +extern int find_mbr_partition (struct nbdkit_next_ops *next_ops, void *nxdata, + int64_t size, uint8_t *mbr, + int64_t *offset_r, int64_t *range_r); +extern int find_gpt_partition (struct nbdkit_next_ops *next_ops, void *nxdata, + int64_t size, uint8_t *header_bytes, + int64_t *offset_r, int64_t *range_r); + +#endif /* NBDKIT_PARTITION_H */ diff --git a/filters/rate/Makefile.am b/filters/rate/Makefile.am new file mode 100644 index 0000000..4cf47b6 --- /dev/null +++ b/filters/rate/Makefile.am @@ -0,0 +1,63 @@ +# nbdkit +# Copyright (C) 2018-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-rate-filter.pod + +filter_LTLIBRARIES = nbdkit-rate-filter.la + +nbdkit_rate_filter_la_SOURCES = \ + bucket.c \ + bucket.h \ + rate.c \ + $(top_srcdir)/include/nbdkit-filter.h + +nbdkit_rate_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include +nbdkit_rate_filter_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_rate_filter_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms + +if HAVE_POD + +man_MANS = nbdkit-rate-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-rate-filter.1: nbdkit-rate-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/rate/Makefile.in b/filters/rate/Makefile.in new file mode 100644 index 0000000..a4697ee --- /dev/null +++ b/filters/rate/Makefile.in @@ -0,0 +1,894 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* This filter is implemented using a Token Bucket + * (https://en.wikipedia.org/wiki/Token_bucket). There are two + * buckets per connection (one each for reading and writing) and two + * global buckets (also for reading and writing). + * + * We add tokens at the desired rate (the per-connection rate for the + * connection buckets, and the global rate for the global buckets). + * Note that we don't actually keep the buckets updated in real time + * because as a filter we are called asynchronously. Instead for each + * bucket we store the last time we were called and add the + * appropriate number of tokens when we are called next. + * + * The bucket capacity controls the burstiness allowed. This is + * hard-coded at the moment but could be configurable. All buckets + * start off full. + * + * When a packet is to be read or written, if there are sufficient + * tokens in the bucket then the packet may be immediately passed + * through to the underlying plugin. The number of bits used is + * deducted from the appropriate per-connection and global bucket. + * + * If there are insufficient tokens then the packet must be delayed. + * This is done by inserting a sleep which has an estimated length + * that is long enough based on the rate at which enough tokens will + * replenish the bucket to allow the packet to be sent next time. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "minmax.h" +#include "tvdiff.h" + +#include "bucket.h" + +int rate_debug_bucket; /* -D rate.bucket=1 */ + +void +bucket_init (struct bucket *bucket, uint64_t rate, double capacity_secs) +{ + bucket->rate = rate; + + /* Store the capacity passed to this function. We will need this if + * we adjust the rate dynamically. + */ + bucket->capacity_secs = capacity_secs; + + /* Capacity is expressed in seconds, but we want to know the + * capacity in tokens, so multiply by the rate to get this. + */ + bucket->capacity = rate * capacity_secs; + + /* Buckets start off full. */ + bucket->level = bucket->capacity; + + gettimeofday (&bucket->tv, NULL); +} + +uint64_t +bucket_adjust_rate (struct bucket *bucket, uint64_t rate) +{ + uint64_t old_rate = bucket->rate; + + bucket->rate = rate; + bucket->capacity = rate * bucket->capacity_secs; + if (bucket->level > bucket->capacity) + bucket->level = bucket->capacity; + return old_rate; +} + +uint64_t +bucket_run (struct bucket *bucket, uint64_t n, struct timespec *ts) +{ + struct timeval now; + int64_t usec; + uint64_t add, nsec; + + /* rate == 0 is a special case meaning that there is no limit being + * enforced. + */ + if (bucket->rate == 0) + return 0; + + gettimeofday (&now, NULL); + + /* Work out how much time has elapsed since we last added tokens to + * the bucket, and add the correct number of tokens. + */ + usec = tvdiff_usec (&bucket->tv, &now); + if (usec < 0) /* Maybe happens if system time not monotonic? */ + usec = 0; + + add = bucket->rate * usec / 1000000; + add = MIN (add, bucket->capacity - bucket->level); + if (rate_debug_bucket) + nbdkit_debug ("bucket %p: adding %" PRIu64 " tokens, new level %" PRIu64, + bucket, add, bucket->level + add); + bucket->level += add; + bucket->tv = now; + + /* Can we deduct N tokens from the bucket? If yes then we're good, + * and we can return 0 which means the caller won't sleep. + */ + if (bucket->level >= n) { + if (rate_debug_bucket) + nbdkit_debug ("bucket %p: deducting %" PRIu64 " tokens", bucket, n); + bucket->level -= n; + return 0; + } + + if (rate_debug_bucket) + nbdkit_debug ("bucket %p: deducting %" PRIu64 " tokens, bucket empty, " + "need another %" PRIu64 " tokens", + bucket, bucket->level, n - bucket->level); + + n -= bucket->level; + bucket->level = 0; + + /* Now we need to estimate how long it will take to add N tokens to + * the bucket, which is how long the caller must sleep for. + */ + nsec = 1000000000 * n / bucket->rate; + ts->tv_sec = nsec / 1000000000; + ts->tv_nsec = nsec % 1000000000; + + if (rate_debug_bucket) + nbdkit_debug ("bucket %p: sleeping for %.1f seconds", bucket, + nsec / 1000000000.); + + return n; +} diff --git a/filters/rate/bucket.h b/filters/rate/bucket.h new file mode 100644 index 0000000..ecb80e6 --- /dev/null +++ b/filters/rate/bucket.h @@ -0,0 +1,74 @@ +/* nbdkit + * Copyright (C) 2018-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_BUCKET_H +#define NBDKIT_BUCKET_H + +#include +#include +#include + +/* A token bucket. */ +struct bucket { + uint64_t rate; /* Fill rate. 0 = no limit set. */ + double capacity_secs; /* Capacity as supplied to bucket_init. */ + uint64_t capacity; /* Maximum capacity of the bucket in tokens. */ + uint64_t level; /* How full is the bucket now? */ + struct timeval tv; /* Last time we updated the level. */ +}; + +/* Initialize the bucket structure. Capacity is expressed in + * rate-equivalent seconds. + */ +extern void bucket_init (struct bucket *bucket, + uint64_t rate, double capacity_secs); + +/* Dynamically adjust the rate. The old rate is returned. */ +extern uint64_t bucket_adjust_rate (struct bucket *bucket, uint64_t rate); + +/* Take up to N tokens from the bucket. Returns the number + * of tokens remaining (that could not be taken from the bucket), + * or 0 if we were able to take all N tokens from the bucket. + * + * In the case that the return value > 0, *TS is initialized with the + * estimated length of time you should sleep. Note that *TS is _NOT_ + * initialized if the return value == 0, because the caller should not + * sleep in that case. + * + * In the case where the caller needs to sleep, it must make a further + * call to bucket_run before proceeding, since another thread may have + * "stolen" the tokens while you were sleeping. + */ +extern uint64_t bucket_run (struct bucket *bucket, uint64_t n, + struct timespec *ts); + +#endif /* NBDKIT_BUCKET_H */ diff --git a/filters/rate/nbdkit-rate-filter.pod b/filters/rate/nbdkit-rate-filter.pod new file mode 100644 index 0000000..2ce07cc --- /dev/null +++ b/filters/rate/nbdkit-rate-filter.pod @@ -0,0 +1,125 @@ +=head1 NAME + +nbdkit-rate-filter - limit bandwidth by connection or server + +=head1 SYNOPSIS + + nbdkit --filter=rate PLUGIN [PLUGIN-ARGS...] + [rate=BITSPERSEC] + [connection-rate=BITSPERSEC] + [rate-file=FILENAME] [connection-rate-file=FILENAME] + +=head1 DESCRIPTION + +C is a filter that limits the bandwidth that can +be used by the server. Limits can be applied per connection and/or +for the server as a whole. + +=head1 EXAMPLES + +=over 4 + +=item nbdkit --filter=rate memory size=64M rate=1M + +Create a 64M RAM disk and limit server bandwidth as a whole to a +maximum of S<1 Mbps> (megabit per second). + +=item nbdkit --filter=rate memory size=64M connection-rate=50K + +Limit each connection to S<50 Kbps> (kilobits per second). However as +there is no limit to the number of simultaneous connections this does +not limit overall server bandwidth. + +=item nbdkit --filter=rate memory size=64M connection-rate=50K rate=1M + +Limit each connection to S<50 Kbps>. Additionally the total bandwidth +across all connections to the server is limited to S<1 Mbps>. + +=item nbdkit --filter=rate memory size=64M rate=1M rate-file=/tmp/rate + +Initially limit bandwidth to S<1 Mbps>. While the server is running +the rate can be adjusted dynamically by writing a different rate into +F. + +=back + +=head1 PARAMETERS + +=over 4 + +=item BBITSPERSEC + +Limit each connection to C. + +=item BBITSPERSEC + +Limit total bandwidth across all connections to C. + +=item BFILENAME + +=item BFILENAME + +Adjust the per-connection or total bandwidth dynamically by writing +C into C. See L below. + +=back + +C can be specified as a simple number, or you can use a +number followed by C, C etc to mean kilobits, megabits and so +on. + +=head1 DYNAMIC ADJUSTMENT + +Using the C or C parameters you can +dynamically adjust the bandwidth while the server is running. + +If the file is not present when the server starts up then the initial +rate is taken from the associated C or C +parameter (or if that is not present, then it is unlimited). If the +file is deleted while the server is running then the last rate read +from the file continues to be used. + +The file should be updated atomically (eg. create a new file, then +rename or L the new file over the old file). + +There will be a short delay between the file being updated and the new +rate coming into effect. + +=head1 NOTES + +You can specify C and C on their own or +together. If you specify neither, the filter is turned off. + +The rate filter approximates the bandwidth used by the NBD protocol on +the wire. Some operations such as zeroing and trimming are +effectively free (because only a tiny NBD message is sent over the +network) and so do not count against the bandwidth limit. NBD and TCP +protocol overhead is not included, so you may find that other tools +such as L and L give more accurate results. + +There are separate bandwidth limits for read and write (ie. download +and upload to the server). + +If the size of requests made by your client is much larger than the +rate limit then you can see long, lumpy sleeps in this filter. In the +future we may modify the filter to break up large requests +automatically in order to limit the length of sleeps. Placing the +L in front of this filter may help in the +meantime. + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2019 Red Hat Inc. diff --git a/filters/rate/rate.c b/filters/rate/rate.c new file mode 100644 index 0000000..f79d118 --- /dev/null +++ b/filters/rate/rate.c @@ -0,0 +1,305 @@ +/* nbdkit + * Copyright (C) 2018-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* For a note on the implementation of this filter, see bucket.c. */ + +#include + +#include +#include +#include +#include +#include +#include +#include + +#include + +#include + +#include "bucket.h" + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + +/* Per-connection and global limit, both in bits per second, with zero + * meaning not set / not enforced. These are only used when reading + * the command line and initializing the buckets for the first time. + * They are not involved in dynamic rate adjustment. + */ +static uint64_t connection_rate = 0; +static uint64_t rate = 0; + +/* Files for dynamic rate adjustment. */ +static char *connection_rate_file = NULL; +static char *rate_file = NULL; + +/* Bucket capacity controls the burst rate. It is expressed as the + * length of time in "rate-equivalent seconds" that the client can + * burst for after a period of inactivity. This could be adjustable + * in future. + */ +#define BUCKET_CAPACITY 2.0 + +/* Global read and write buckets. */ +static struct bucket read_bucket; +static pthread_mutex_t read_bucket_lock = PTHREAD_MUTEX_INITIALIZER; +static struct bucket write_bucket; +static pthread_mutex_t write_bucket_lock = PTHREAD_MUTEX_INITIALIZER; + +/* Per-connection handle. */ +struct rate_handle { + /* Per-connection read and write buckets. */ + struct bucket read_bucket; + pthread_mutex_t read_bucket_lock; + struct bucket write_bucket; + pthread_mutex_t write_bucket_lock; +}; + +static void +rate_unload (void) +{ + free (connection_rate_file); + free (rate_file); +} + +/* Called for each key=value passed on the command line. */ +static int +rate_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "rate") == 0) { + if (rate > 0) { + nbdkit_error ("rate set twice on the command line"); + return -1; + } + rate = nbdkit_parse_size (value); + if (rate == -1) + return -1; + if (rate == 0) { + nbdkit_error ("rate cannot be set to 0"); + return -1; + } + return 0; + } + else if (strcmp (key, "connection-rate") == 0) { + if (connection_rate > 0) { + nbdkit_error ("connection-rate set twice on the command line"); + return -1; + } + connection_rate = nbdkit_parse_size (value); + if (connection_rate == -1) + return -1; + if (connection_rate == 0) { + nbdkit_error ("connection-rate cannot be set to 0"); + return -1; + } + return 0; + } + else if (strcmp (key, "rate-file") == 0) { + free (rate_file); + rate_file = nbdkit_absolute_path (value); + if (rate_file == NULL) + return -1; + return 0; + } + else if (strcmp (key, "connection-rate-file") == 0) { + free (connection_rate_file); + connection_rate_file = nbdkit_absolute_path (value); + if (connection_rate_file == NULL) + return -1; + return 0; + } + else + return next (nxdata, key, value); +} + +static int +rate_config_complete (nbdkit_next_config_complete *next, void *nxdata) +{ + /* Initialize the global buckets. */ + bucket_init (&read_bucket, rate, BUCKET_CAPACITY); + bucket_init (&write_bucket, rate, BUCKET_CAPACITY); + + return next (nxdata); +} + +#define rate_config_help \ + "rate=BITSPERSEC Limit total bandwidth.\n" \ + "connection-rate=BITSPERSEC Limit per-connection bandwidth.\n" \ + "rate-file=FILENAME Dynamically adjust total bandwidth.\n" \ + "connection-rate-file=FILENAME Dynamically adjust per-connection bandwidth." + +/* Create the per-connection handle. */ +static void * +rate_open (nbdkit_next_open *next, void *nxdata, int readonly) +{ + struct rate_handle *h; + + if (next (nxdata, readonly) == -1) + return NULL; + + h = malloc (sizeof *h); + if (h == NULL) { + nbdkit_error ("malloc: %m"); + return NULL; + } + + bucket_init (&h->read_bucket, connection_rate, BUCKET_CAPACITY); + bucket_init (&h->write_bucket, connection_rate, BUCKET_CAPACITY); + pthread_mutex_init (&h->read_bucket_lock, NULL); + pthread_mutex_init (&h->write_bucket_lock, NULL); + + return h; +} + +/* Free up the per-connection handle. */ +static void +rate_close (void *handle) +{ + struct rate_handle *h = handle; + + pthread_mutex_destroy (&h->read_bucket_lock); + pthread_mutex_destroy (&h->write_bucket_lock); + free (h); +} + +static void +maybe_adjust (const char *file, struct bucket *bucket, pthread_mutex_t *lock) +{ + FILE *fp; + ssize_t r; + size_t len = 0; + char *line = NULL; + int64_t new_rate; + uint64_t old_rate; + + if (!file) return; + + fp = fopen (file, "r"); + if (fp == NULL) + return; /* this is not an error */ + + r = getline (&line, &len, fp); + fclose (fp); + if (r == -1) { + nbdkit_debug ("could not read rate file: %s: %m", file); + goto err; + } + + if (r > 0 && line[r-1] == '\n') line[r-1] = '\0'; + new_rate = nbdkit_parse_size (line); + if (new_rate == -1) + goto err; + + pthread_mutex_lock (lock); + old_rate = bucket_adjust_rate (bucket, new_rate); + pthread_mutex_unlock (lock); + + if (old_rate != new_rate) + nbdkit_debug ("rate adjusted from %" PRIu64 " to %" PRIi64, + old_rate, new_rate); + + err: + free (line); +} + +static inline void +maybe_sleep (struct bucket *bucket, pthread_mutex_t *lock, uint32_t count) +{ + struct timespec ts; + uint64_t bits; + + /* Count is in bytes, but we rate limit using bits. We could + * multiply this by 10 to include start/stop but let's not + * second-guess the transport layers underneath. + */ + bits = count * UINT64_C(8); + + while (bits > 0) { + /* Run the token bucket algorithm. */ + pthread_mutex_lock (lock); + bits = bucket_run (bucket, bits, &ts); + pthread_mutex_unlock (lock); + + if (bits > 0) + nanosleep (&ts, NULL); + } +} + +/* Read data. */ +static int +rate_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + struct rate_handle *h = handle; + + maybe_adjust (rate_file, &read_bucket, &read_bucket_lock); + maybe_sleep (&read_bucket, &read_bucket_lock, count); + maybe_adjust (connection_rate_file, &h->read_bucket, &h->read_bucket_lock); + maybe_sleep (&h->read_bucket, &h->read_bucket_lock, count); + + return next_ops->pread (nxdata, buf, count, offset, flags, err); +} + +/* Write data. */ +static int +rate_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + const void *buf, uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + struct rate_handle *h = handle; + + maybe_adjust (rate_file, &write_bucket, &write_bucket_lock); + maybe_sleep (&write_bucket, &write_bucket_lock, count); + maybe_adjust (connection_rate_file, &h->write_bucket, &h->write_bucket_lock); + maybe_sleep (&h->write_bucket, &h->write_bucket_lock, count); + + return next_ops->pwrite (nxdata, buf, count, offset, flags, err); +} + +static struct nbdkit_filter filter = { + .name = "rate", + .longname = "nbdkit rate filter", + .version = PACKAGE_VERSION, + .unload = rate_unload, + .config = rate_config, + .config_complete = rate_config_complete, + .config_help = rate_config_help, + .open = rate_open, + .close = rate_close, + .pread = rate_pread, + .pwrite = rate_pwrite, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/readahead/Makefile.am b/filters/readahead/Makefile.am new file mode 100644 index 0000000..0e7a4a8 --- /dev/null +++ b/filters/readahead/Makefile.am @@ -0,0 +1,61 @@ +# nbdkit +# Copyright (C) 2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-readahead-filter.pod + +filter_LTLIBRARIES = nbdkit-readahead-filter.la + +nbdkit_readahead_filter_la_SOURCES = \ + readahead.c \ + $(top_srcdir)/include/nbdkit-filter.h + +nbdkit_readahead_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include +nbdkit_readahead_filter_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_readahead_filter_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms + +if HAVE_POD + +man_MANS = nbdkit-readahead-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-readahead-filter.1: nbdkit-readahead-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/readahead/Makefile.in b/filters/readahead/Makefile.in new file mode 100644 index 0000000..cfba708 --- /dev/null +++ b/filters/readahead/Makefile.in @@ -0,0 +1,883 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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uninstall-man1 + +.PRECIOUS: Makefile + + +@HAVE_POD_TRUE@nbdkit-readahead-filter.1: nbdkit-readahead-filter.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/readahead/nbdkit-readahead-filter.pod b/filters/readahead/nbdkit-readahead-filter.pod new file mode 100644 index 0000000..943bdd5 --- /dev/null +++ b/filters/readahead/nbdkit-readahead-filter.pod @@ -0,0 +1,46 @@ +=head1 NAME + +nbdkit-readahead-filter - prefetch data when reading sequentially + +=head1 SYNOPSIS + + nbdkit --filter=readahead plugin + +=head1 DESCRIPTION + +C is a filter that prefetches data when the +client is reading sequentially. + +A common use for this filter is to accelerate sequential copy +operations (like S>) when plugin requests have a +high overhead (like L). For example: + + nbdkit -U - --filter=readahead curl https://example.com/disk.img \ + --run 'qemu-img convert $nbd disk.img' + +If you use this filter with clients that have a random access pattern +it will slow everything down. + +=head1 PARAMETERS + +There are no parameters specific to nbdkit-readahead-filter. Any +parameters are passed through to and processed by the underlying +plugin in the normal way. + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2019 Red Hat Inc. diff --git a/filters/readahead/readahead.c b/filters/readahead/readahead.c new file mode 100644 index 0000000..5e14347 --- /dev/null +++ b/filters/readahead/readahead.c @@ -0,0 +1,256 @@ +/* nbdkit + * Copyright (C) 2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include + +#include + +#include + +#include "minmax.h" + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + +/* Copied from server/plugins.c. */ +#define MAX_REQUEST_SIZE (64 * 1024 * 1024) + +/* These could be made configurable in future. */ +#define READAHEAD_MIN 65536 +#define READAHEAD_MAX MAX_REQUEST_SIZE + +/* This lock protects the global state. */ +static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; + +/* The real size of the underlying plugin. */ +static uint64_t size; + +/* Size of the readahead window. */ +static uint64_t window = READAHEAD_MIN; + +/* The single prefetch buffer shared by all threads, and its virtual + * location in the virtual disk. The prefetch buffer grows + * dynamically as required, but never shrinks. + */ +static char *buffer = NULL; +static size_t bufsize = 0; +static uint64_t position; +static uint32_t length = 0; + +static void +readahead_unload (void) +{ + free (buffer); +} + +static int64_t readahead_get_size (struct nbdkit_next_ops *next_ops, + void *nxdata, void *handle); + +/* In prepare, force a call to get_size which sets the size global. */ +static int +readahead_prepare (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + int64_t r; + + r = readahead_get_size (next_ops, nxdata, handle); + return r >= 0 ? 0 : -1; +} + +/* Get the size. */ +static int64_t +readahead_get_size (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + int64_t r; + + r = next_ops->get_size (nxdata); + if (r == -1) + return -1; + + pthread_mutex_lock (&lock); + size = r; + pthread_mutex_unlock (&lock); + + return r; +} + +/* Read data. */ + +static int +fill_readahead (struct nbdkit_next_ops *next_ops, void *nxdata, + uint32_t count, uint64_t offset, uint32_t flags, int *err) +{ + position = offset; + + /* Read at least window bytes, but if count is larger read that. + * Note that the count cannot be bigger than the buffer size. + */ + length = MAX (count, window); + + /* Don't go beyond the end of the underlying file. */ + length = MIN (length, size - position); + + /* Grow the buffer if necessary. */ + if (bufsize < length) { + char *new_buffer = realloc (buffer, length); + if (new_buffer == NULL) { + *err = errno; + nbdkit_error ("realloc: %m"); + return -1; + } + buffer = new_buffer; + bufsize = length; + } + + if (next_ops->pread (nxdata, buffer, length, offset, flags, err) == -1) { + length = 0; /* failed to fill the prefetch buffer */ + return -1; + } + + return 0; +} + +static int +readahead_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + pthread_mutex_lock (&lock); + + while (count > 0) { + if (length == 0) { + /* We don't have a prefetch buffer at all. This could be the + * first request or reset after a miss. + */ + window = READAHEAD_MIN; + if (fill_readahead (next_ops, nxdata, count, offset, flags, err) == -1) + goto err; + } + + /* Can we satisfy this request partly or entirely from the prefetch + * buffer? + */ + else if (position <= offset && offset < position + length) { + uint32_t n = MIN (position - offset + length, count); + memcpy (buf, &buffer[offset-position], n); + buf += n; + offset += n; + count -= n; + } + + /* Does the request start immediately after the prefetch buffer? + * This is a “hit” allowing us to double the window size. + */ + else if (offset == position + length) { + window = MIN (window * 2, READAHEAD_MAX); + if (fill_readahead (next_ops, nxdata, count, offset, flags, err) == -1) + goto err; + } + + /* Else it's a “miss”. Reset everything and start again. */ + else + length = 0; + } + + pthread_mutex_unlock (&lock); + return 0; + + err: + pthread_mutex_unlock (&lock); + return -1; +} + +/* Any writes or write-like operations kill the prefetch buffer. + * + * We could do better here, but for the current use case of this + * filter it doesn't matter. XXX + */ + +static void +kill_readahead (void) +{ + pthread_mutex_lock (&lock); + window = READAHEAD_MIN; + length = 0; + pthread_mutex_unlock (&lock); +} + +static int +readahead_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + const void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + kill_readahead (); + return next_ops->pwrite (nxdata, buf, count, offset, flags, err); +} + +static int +readahead_trim (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + kill_readahead (); + return next_ops->trim (nxdata, count, offset, flags, err); +} + +static int +readahead_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + kill_readahead (); + return next_ops->zero (nxdata, count, offset, flags, err); +} + +static struct nbdkit_filter filter = { + .name = "readahead", + .longname = "nbdkit readahead filter", + .version = PACKAGE_VERSION, + .unload = readahead_unload, + .prepare = readahead_prepare, + .get_size = readahead_get_size, + .pread = readahead_pread, + .pwrite = readahead_pwrite, + .trim = readahead_trim, + .zero = readahead_zero, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/truncate/Makefile.am b/filters/truncate/Makefile.am new file mode 100644 index 0000000..86709d4 --- /dev/null +++ b/filters/truncate/Makefile.am @@ -0,0 +1,61 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-truncate-filter.pod + +filter_LTLIBRARIES = nbdkit-truncate-filter.la + +nbdkit_truncate_filter_la_SOURCES = \ + truncate.c \ + $(top_srcdir)/include/nbdkit-filter.h + +nbdkit_truncate_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include +nbdkit_truncate_filter_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_truncate_filter_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms + +if HAVE_POD + +man_MANS = nbdkit-truncate-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-truncate-filter.1: nbdkit-truncate-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/filters/truncate/Makefile.in b/filters/truncate/Makefile.in new file mode 100644 index 0000000..df94208 --- /dev/null +++ b/filters/truncate/Makefile.in @@ -0,0 +1,883 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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uninstall-man1 + +.PRECIOUS: Makefile + + +@HAVE_POD_TRUE@nbdkit-truncate-filter.1: nbdkit-truncate-filter.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/truncate/nbdkit-truncate-filter.pod b/filters/truncate/nbdkit-truncate-filter.pod new file mode 100644 index 0000000..9eba6cd --- /dev/null +++ b/filters/truncate/nbdkit-truncate-filter.pod @@ -0,0 +1,88 @@ +=head1 NAME + +nbdkit-truncate-filter - change the size of plugins + +=head1 SYNOPSIS + + nbdkit --filter=truncate plugin [truncate=SIZE] + [round-up=N] [round-down=N] + +=head1 DESCRIPTION + +C is a filter that changes the size of +the underlying plugin. It can: + +=over 4 + +=item * + +Make the plugin smaller (truncate it). Use the C +parameter to set the smaller size. + +=item * + +Make the plugin larger (the additional bytes read back as zeroes). +Use C to set the larger size. + +=item * + +Round the size of the plugin up or down to the next multiple of C. +Use either C or C. + +=back + +A common use for this filter is to handle NBD clients which have a +problem dealing with device sizes which are not a multiple of 512 +bytes. Use C to round the size up to the next multiple +of 512 bytes. If the size is already a multiple of 512 bytes then +this has no effect. + +=head1 PARAMETERS + +=over 4 + +=item BSIZE + +Set the absolute size in bytes of the apparent device. This may be +smaller or larger or the same as the underlying plugin. + +If the size is larger than the underlying plugin, reading the extra +space returns zeroes. Writes are also permitted to the extra space, +but you must only write zeroes (any attempts to write non-zero bytes +will return an error back to the client). + +This parameter is optional. + +=item BN + +Round the size up to the next multiple of C bytes. If the size of +the underlying plugin is already a multiple of C bytes, this has no +effect. + +This parameter is optional. + +=item BN + +Round the size down to a multiple of C bytes. If the size of the +underlying plugin is already a multiple of C bytes, this has no +effect. + +This parameter is optional. + +=back + +=head1 SEE ALSO + +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/filters/truncate/truncate.c b/filters/truncate/truncate.c new file mode 100644 index 0000000..dfc6873 --- /dev/null +++ b/filters/truncate/truncate.c @@ -0,0 +1,358 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include + +#include + +#include + +#include "ispowerof2.h" +#include "iszero.h" +#include "rounding.h" + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + +/* These are the parameters. */ +static int64_t truncate_size = -1; +static unsigned round_up = 0, round_down = 0; + +/* The real size of the underlying plugin. */ +static uint64_t real_size; + +/* The calculated size after applying the parameters. */ +static uint64_t size; + +/* This lock protects the real_size and size fields. */ +static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; + +static int +parse_round_param (const char *key, const char *value, unsigned *ret) +{ + int64_t r; + unsigned u; + + /* Parse it as a "size" quantity so we allow round-up=1M and similar. */ + r = nbdkit_parse_size (value); + if (r == -1) + return -1; + + /* Must not be zero or larger than an unsigned int. */ + if (r == 0) { + nbdkit_error ("if set, the %s parameter must be > 0", key); + return -1; + } + if (r > UINT_MAX) { + nbdkit_error ("the %s parameter is too large", key); + return -1; + } + u = r; + + /* Must be a power of 2. We could relax this in future. */ + if (!is_power_of_2 (u)) { + nbdkit_error ("the %s parameter must be a power of 2", key); + return -1; + } + + *ret = u; + return 0; +} + +/* Called for each key=value passed on the command line. */ +static int +truncate_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "truncate") == 0) { + truncate_size = nbdkit_parse_size (value); + if (truncate_size == -1) + return -1; + return 0; + } + else if (strcmp (key, "round-up") == 0) { + return parse_round_param (key, value, &round_up); + } + else if (strcmp (key, "round-down") == 0) { + return parse_round_param (key, value, &round_down); + } + else + return next (nxdata, key, value); +} + +#define truncate_config_help \ + "truncate= The new size.\n" \ + "round-up= Round up to next multiple of N.\n" \ + "round-down= Round down to multiple of N." + +static int64_t truncate_get_size (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle); + +/* In prepare, force a call to get_size which sets the real_size & size + * globals. + */ +static int +truncate_prepare (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + int64_t r; + + r = truncate_get_size (next_ops, nxdata, handle); + return r >= 0 ? 0 : -1; +} + +/* Get the size. As a side effect, calculate the size to serve. */ +static int64_t +truncate_get_size (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + int64_t r, ret; + + r = next_ops->get_size (nxdata); + if (r == -1) + return -1; + + pthread_mutex_lock (&lock); + + real_size = size = r; + + /* The truncate, round-up and round-down parameters are treated as + * separate operations. It's possible to specify more than one, + * although perhaps not very useful. + */ + if (truncate_size >= 0) + size = truncate_size; + if (round_up > 0) + size = ROUND_UP (size, round_up); + if (round_down > 0) + size = ROUND_DOWN (size, round_down); + ret = size; + + pthread_mutex_unlock (&lock); + + return ret; +} + +/* Read data. */ +static int +truncate_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + int r; + uint32_t n; + uint64_t real_size_copy; + + pthread_mutex_lock (&lock); + real_size_copy = real_size; + pthread_mutex_unlock (&lock); + + if (offset < real_size_copy) { + if (offset + count <= real_size_copy) + n = count; + else + n = real_size_copy - offset; + r = next_ops->pread (nxdata, buf, n, offset, flags, err); + if (r == -1) + return -1; + count -= n; + buf += n; + } + + if (count > 0) + memset (buf, 0, count); + + return 0; +} + +/* Write data. */ +static int +truncate_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + const void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + int r; + uint32_t n; + uint64_t real_size_copy; + + pthread_mutex_lock (&lock); + real_size_copy = real_size; + pthread_mutex_unlock (&lock); + + if (offset < real_size_copy) { + if (offset + count <= real_size_copy) + n = count; + else + n = real_size_copy - offset; + r = next_ops->pwrite (nxdata, buf, n, offset, flags, err); + if (r == -1) + return -1; + count -= n; + buf += n; + } + + if (count > 0) { + /* The caller must be writing zeroes, else it's an error. */ + if (!is_zero (buf, count)) { + nbdkit_error ("truncate: write beyond end of underlying device"); + *err = ENOSPC; + return -1; + } + } + + return 0; +} + +/* Trim data. */ +static int +truncate_trim (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + uint32_t n; + uint64_t real_size_copy; + + pthread_mutex_lock (&lock); + real_size_copy = real_size; + pthread_mutex_unlock (&lock); + + if (offset < real_size_copy) { + if (offset + count <= real_size_copy) + n = count; + else + n = real_size_copy - offset; + return next_ops->trim (nxdata, n, offset, flags, err); + } + return 0; +} + +/* Zero data. */ +static int +truncate_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + uint32_t n; + uint64_t real_size_copy; + + pthread_mutex_lock (&lock); + real_size_copy = real_size; + pthread_mutex_unlock (&lock); + + if (offset < real_size_copy) { + if (offset + count <= real_size_copy) + n = count; + else + n = real_size_copy - offset; + return next_ops->zero (nxdata, n, offset, flags, err); + } + return 0; +} + +/* Extents. */ +static int +truncate_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, struct nbdkit_extents *extents, int *err) +{ + uint32_t n; + uint64_t real_size_copy; + struct nbdkit_extents *extents2; + size_t i; + + pthread_mutex_lock (&lock); + real_size_copy = real_size; + pthread_mutex_unlock (&lock); + + /* If the entire request is beyond the end of the underlying plugin + * then this is the easy case: return a hole up to the end of the + * file. + */ + if (offset >= real_size_copy) + return nbdkit_add_extent (extents, + real_size_copy, truncate_size - real_size_copy, + NBDKIT_EXTENT_ZERO|NBDKIT_EXTENT_HOLE); + + /* We're asked first for extents information about the plugin, then + * possibly (if truncating larger) for the hole after the plugin. + * Since we're not required to provide all of this information, the + * easiest thing is to only return data from the plugin. We will be + * called later about the hole. However we do need to make sure + * that the extents array is truncated to the real size, hence we + * have to create a new extents array, ask the plugin, then copy the + * returned data to the original array. + */ + extents2 = nbdkit_extents_new (offset, real_size_copy); + if (offset + count <= real_size_copy) + n = count; + else + n = real_size_copy - offset; + if (next_ops->extents (nxdata, n, offset, flags, extents2, err) == -1) { + nbdkit_extents_free (extents2); + return -1; + } + + for (i = 0; i < nbdkit_extents_count (extents2); ++i) { + struct nbdkit_extent e = nbdkit_get_extent (extents2, i); + + if (nbdkit_add_extent (extents, e.offset, e.length, e.type) == -1) { + nbdkit_extents_free (extents2); + return -1; + } + } + nbdkit_extents_free (extents2); + + return 0; +} + +static struct nbdkit_filter filter = { + .name = "truncate", + .longname = "nbdkit truncate filter", + .version = PACKAGE_VERSION, + .config = truncate_config, + .config_help = truncate_config_help, + .prepare = truncate_prepare, + .get_size = truncate_get_size, + .pread = truncate_pread, + .pwrite = truncate_pwrite, + .trim = truncate_trim, + .zero = truncate_zero, + .extents = truncate_extents, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/xz/Makefile.am b/filters/xz/Makefile.am new file mode 100644 index 0000000..d9ad3bd --- /dev/null +++ b/filters/xz/Makefile.am @@ -0,0 +1,71 @@ +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-xz-filter.pod + +if HAVE_LIBLZMA + +filter_LTLIBRARIES = nbdkit-xz-filter.la + +nbdkit_xz_filter_la_SOURCES = \ + blkcache.c \ + blkcache.h \ + xz.c \ + xzfile.c \ + xzfile.h \ + $(top_srcdir)/include/nbdkit-filter.h + +nbdkit_xz_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include +nbdkit_xz_filter_la_CFLAGS = \ + $(WARNINGS_CFLAGS) \ + $(LIBLZMA_CFLAGS) +nbdkit_xz_filter_la_LIBADD = \ + $(LIBLZMA_LIBS) +nbdkit_xz_filter_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/filters/filters.syms + +if HAVE_POD + +man_MANS = nbdkit-xz-filter.1 +CLEANFILES += $(man_MANS) + +nbdkit-xz-filter.1: nbdkit-xz-filter.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD + +endif diff --git a/filters/xz/Makefile.in b/filters/xz/Makefile.in new file mode 100644 index 0000000..20b8386 --- /dev/null +++ b/filters/xz/Makefile.in @@ -0,0 +1,917 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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uninstall-filterLTLIBRARIES uninstall-man \ + uninstall-man1 + +.PRECIOUS: Makefile + + +@HAVE_LIBLZMA_TRUE@@HAVE_POD_TRUE@nbdkit-xz-filter.1: nbdkit-xz-filter.pod +@HAVE_LIBLZMA_TRUE@@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_LIBLZMA_TRUE@@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_LIBLZMA_TRUE@@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/filters/xz/blkcache.c b/filters/xz/blkcache.c new file mode 100644 index 0000000..7a5c9b5 --- /dev/null +++ b/filters/xz/blkcache.c @@ -0,0 +1,145 @@ +/* nbdkit + * Copyright (C) 2013 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include + +#include + +#include "blkcache.h" + +/* Implemented as a very simple LRU list with a fixed depth. */ +struct blkcache { + size_t maxdepth; + struct block *blocks; + blkcache_stats stats; +}; + +struct block { + uint64_t start; + uint64_t size; + char *data; +}; + +blkcache * +new_blkcache (size_t maxdepth) +{ + blkcache *c; + + c = malloc (sizeof *c); + if (!c) { + nbdkit_error ("malloc: %m"); + return NULL; + } + + c->blocks = calloc (maxdepth, sizeof (struct block)); + if (!c->blocks) { + nbdkit_error ("calloc: %m"); + free (c); + return NULL; + } + c->maxdepth = maxdepth; + c->stats.hits = c->stats.misses = 0; + + return c; +} + +void +free_blkcache (blkcache *c) +{ + size_t i; + + for (i = 0; i < c->maxdepth; ++i) + free (c->blocks[i].data); + free (c->blocks); + free (c); +} + +char * +get_block (blkcache *c, uint64_t offset, uint64_t *start, uint64_t *size) +{ + size_t i; + struct block tmp; + + for (i = 0; i < c->maxdepth; ++i) { + if (c->blocks[i].data != NULL && + c->blocks[i].start <= offset && + offset < c->blocks[i].start + c->blocks[i].size) { + /* This block is now most recently used, so put it at the start. */ + if (i > 0) { + tmp = c->blocks[0]; + c->blocks[0] = c->blocks[i]; + c->blocks[i] = tmp; + } + + c->stats.hits++; + *start = c->blocks[0].start; + *size = c->blocks[0].size; + return c->blocks[0].data; + } + } + + c->stats.misses++; + return NULL; +} + +int +put_block (blkcache *c, uint64_t start, uint64_t size, char *data) +{ + size_t i; + + /* Eject the least recently used block. */ + i = c->maxdepth-1; + if (c->blocks[i].data != NULL) + free (c->blocks[i].data); + + for (; i >= 1; --i) + c->blocks[i] = c->blocks[i-1]; + + /* The new block is most recently used, so it goes at the start. */ + c->blocks[0].start = start; + c->blocks[0].size = size; + c->blocks[0].data = data; + + return 0; +} + +void +blkcache_get_stats (blkcache *c, blkcache_stats *ret) +{ + memcpy (ret, &c->stats, sizeof (c->stats)); +} diff --git a/filters/xz/blkcache.h b/filters/xz/blkcache.h new file mode 100644 index 0000000..6fe4f01 --- /dev/null +++ b/filters/xz/blkcache.h @@ -0,0 +1,53 @@ +/* nbdkit + * Copyright (C) 2013 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_BLKCACHE_H +#define NBDKIT_BLKCACHE_H + +typedef struct blkcache blkcache; + +typedef struct blkcache_stats { + size_t hits; + size_t misses; +} blkcache_stats; + +extern blkcache *new_blkcache (size_t maxdepth); +extern void free_blkcache (blkcache *) __attribute__((__nonnull__ (1))); +extern char *get_block (blkcache *, uint64_t offset, + uint64_t *start, uint64_t *size) + __attribute__((__nonnull__ (1, 3, 4))); +extern int put_block (blkcache *, uint64_t start, uint64_t size, char *data) + __attribute__((__nonnull__ (1, 4))); +extern void blkcache_get_stats (blkcache *, blkcache_stats *ret) + __attribute__((__nonnull__ (1, 2))); + +#endif /* NBDKIT_XZFILE_H */ diff --git a/filters/xz/nbdkit-xz-filter.pod b/filters/xz/nbdkit-xz-filter.pod new file mode 100644 index 0000000..c6cafec --- /dev/null +++ b/filters/xz/nbdkit-xz-filter.pod @@ -0,0 +1,93 @@ +=head1 NAME + +nbdkit-xz-filter - nbdkit xz filter + +=head1 SYNOPSIS + + nbdkit --filter=xz file FILENAME.xz + + nbdkit --filter=xz curl https://example.com/FILENAME.xz + +=head1 DESCRIPTION + +C is a filter for L which uncompresses +the underlying plugin on the fly. The filter only supports read-only +connections. + +=head2 Getting best random access performance from xz + +L files are split into streams and blocks. Most xz files +contain only one stream which contains one or more blocks. You can +find out how many streams and blocks are in an xz file by doing: + + $ xz --list winxp.img.xz + Strms Blocks Compressed Uncompressed Ratio Check Filename + 1 1 2,100.0 MiB 6,144.0 MiB 0.342 CRC64 winxp.img.xz + ↑↑↑ ↑↑↑ + streams blocks + +xz files are seekable on block boundaries only. Seeking is done by +seeking directly to the lower block boundary, then uncompressing data +until the precise byte is reached. As uncompressing xz data is slow, +B + +Use the I<--block-size> option with a small-ish block size. For +example this is the same image compressed with a 16 MB block size: + + $ xz --best --block-size=16777216 winxp.img + ───────────────────── + $ xz --list winxp.img.xz + Strms Blocks Compressed Uncompressed Ratio Check Filename + 1 384 2,120.1 MiB 6,144.0 MiB 0.345 CRC64 winxp.img.xz + ↑↑↑ + blocks + +This file can be accessed randomly. At most 16 MB will have to be +uncompressed to seek to any byte. + +As you would expect, xz cannot compress as efficiently when using a +smaller block size. The space penalty in the above example is +S 1%> of the compressed file size. + +=head1 PARAMETERS + +=over 4 + +=item BSIZE + +The maximum block size that the filter will read. The filter will +refuse to read xz files that contain any block larger than this size. + +See the discussion above about creating xz files with small block +sizes in order to reduce memory usage and increase performance. + +This parameter is optional. If not specified it defaults to 512M. + +=item BN + +Maximum number of blocks stored in the LRU block cache. + +This parameter is optional. If not specified it defaults to 8. + +The filter may allocate up to +S +bytes of memory I. + +=back + +=head1 SEE ALSO + +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2013-2018 Red Hat Inc. diff --git a/filters/xz/xz.c b/filters/xz/xz.c new file mode 100644 index 0000000..366000b --- /dev/null +++ b/filters/xz/xz.c @@ -0,0 +1,254 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include + +#include "xzfile.h" +#include "blkcache.h" + +static uint64_t maxblock = 512 * 1024 * 1024; +static size_t maxdepth = 8; + +static int +xz_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "xz-max-block") == 0) { + int64_t r = nbdkit_parse_size (value); + if (r == -1) + return -1; + maxblock = (uint64_t) r; + return 0; + } + else if (strcmp (key, "xz-max-depth") == 0) { + size_t r; + + if (sscanf (value, "%zu", &r) != 1) { + nbdkit_error ("could not parse 'xz-max-depth' parameter"); + return -1; + } + if (r == 0) { + nbdkit_error ("'xz-max-depth' parameter must be >= 1"); + return -1; + } + + maxdepth = r; + return 0; + } + else + return next (nxdata, key, value); +} + +#define xz_config_help \ + "xz-max-block= (optional) Maximum block size allowed (default: 512M)\n"\ + "xz-max-depth= (optional) Maximum blocks in cache (default: 4)\n" + +/* The per-connection handle. */ +struct xz_handle { + xzfile *xz; + + /* Block cache. */ + blkcache *c; +}; + +/* Create the per-connection handle. */ +static void * +xz_open (nbdkit_next_open *next, void *nxdata, int readonly) +{ + struct xz_handle *h; + + /* Always pass readonly=1 to the underlying plugin. */ + if (next (nxdata, 1) == -1) + return NULL; + + h = malloc (sizeof *h); + if (h == NULL) { + nbdkit_error ("malloc: %m"); + return NULL; + } + + h->c = new_blkcache (maxdepth); + if (!h->c) { + free (h); + return NULL; + } + + /* Initialized in xz_prepare. */ + h->xz = NULL; + + return h; +} + +/* Free up the per-connection handle. */ +static void +xz_close (void *handle) +{ + struct xz_handle *h = handle; + blkcache_stats stats; + + if (h->c) { + blkcache_get_stats (h->c, &stats); + + nbdkit_debug ("cache: hits = %zu, misses = %zu", stats.hits, stats.misses); + } + + xzfile_close (h->xz); + free_blkcache (h->c); + free (h); +} + +static int +xz_prepare (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle) +{ + struct xz_handle *h = handle; + + h->xz = xzfile_open (next_ops, nxdata); + if (!h->xz) + return -1; + + if (maxblock < xzfile_max_uncompressed_block_size (h->xz)) { + nbdkit_error ("xz file largest block is bigger than maxblock\n" + "Either recompress the xz file with smaller blocks " + "(see nbdkit-xz-plugin(1))\n" + "or make maxblock parameter bigger.\n" + "maxblock = %" PRIu64 " (bytes)\n" + "largest block in xz file = %" PRIu64 " (bytes)", + maxblock, + xzfile_max_uncompressed_block_size (h->xz)); + return -1; + } + + return 0; +} + +/* Get the file size. */ +static int64_t +xz_get_size (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle) +{ + struct xz_handle *h = handle; + + return xzfile_get_size (h->xz); +} + +/* We need this because otherwise the layer below can_write is called + * and that might return true (eg. if the plugin has a pwrite method + * at all), resulting in writes being passed through to the layer + * below. This is possibly a bug in nbdkit. + */ +static int +xz_can_write (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + return 0; +} + +/* Similar to above. However xz files themselves do support + * sparseness so in future we should generate extents information. XXX + */ +static int +xz_can_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + return 0; +} + +/* Read data from the file. */ +static int +xz_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + struct xz_handle *h = handle; + char *data; + uint64_t start, size; + uint32_t n; + + /* Find the block in the cache. */ + data = get_block (h->c, offset, &start, &size); + if (!data) { + /* Not in the cache. We need to read the block from the xz file. */ + data = xzfile_read_block (h->xz, next_ops, nxdata, flags, err, + offset, &start, &size); + if (data == NULL) + return -1; + put_block (h->c, start, size, data); + } + + /* It's possible if the blocks are really small or oddly aligned or + * if the requests are large that we need to read the following + * block to satisfy the request. + */ + n = count; + if (start + size - offset < n) + n = start + size - offset; + + memcpy (buf, &data[offset-start], n); + buf += n; + count -= n; + offset += n; + if (count > 0) + return xz_pread (next_ops, nxdata, h, buf, count, offset, flags, err); + + return 0; +} + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS + +static struct nbdkit_filter filter = { + .name = "xz", + .longname = "nbdkit XZ filter", + .version = PACKAGE_VERSION, + .config = xz_config, + .config_help = xz_config_help, + .open = xz_open, + .close = xz_close, + .prepare = xz_prepare, + .get_size = xz_get_size, + .can_write = xz_can_write, + .can_extents = xz_can_extents, + .pread = xz_pread, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/filters/xz/xzfile.c b/filters/xz/xzfile.c new file mode 100644 index 0000000..39935ed --- /dev/null +++ b/filters/xz/xzfile.c @@ -0,0 +1,503 @@ +/* nbdkit + * Copyright (C) 2013 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* liblzma is a complex interface, so abstract it here. */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include + +#include "xzfile.h" + +#ifndef O_CLOEXEC +#define O_CLOEXEC 0 +#endif + +#define XZ_HEADER_MAGIC "\xfd" "7zXZ\0" +#define XZ_HEADER_MAGIC_LEN 6 +#define XZ_FOOTER_MAGIC "YZ" +#define XZ_FOOTER_MAGIC_LEN 2 + +struct xzfile { + lzma_index *idx; + size_t nr_streams; + size_t nr_blocks; + uint64_t max_uncompressed_block_size; +}; + +static bool check_header_magic (struct nbdkit_next_ops *next_ops, void *nxdata); +static lzma_index *parse_indexes (struct nbdkit_next_ops *next_ops, void *nxdata, size_t *); +static int iter_indexes (lzma_index *idx, size_t *, uint64_t *); + +xzfile * +xzfile_open (struct nbdkit_next_ops *next_ops, void *nxdata) +{ + xzfile *xz; + uint64_t size; + + xz = malloc (sizeof *xz); + if (xz == NULL) { + nbdkit_error ("malloc: %m"); + return NULL; + } + + /* Check file magic. */ + if (!check_header_magic (next_ops, nxdata)) { + nbdkit_error ("xz: not an xz file"); + goto err1; + } + + /* Read and parse the indexes. */ + xz->idx = parse_indexes (next_ops, nxdata, &xz->nr_streams); + if (xz->idx == NULL) + goto err1; + + /* Iterate over indexes to find the number of and largest block. */ + if (iter_indexes (xz->idx, + &xz->nr_blocks, &xz->max_uncompressed_block_size) == -1) + goto err1; + + size = lzma_index_uncompressed_size (xz->idx); + nbdkit_debug ("xz: size %" PRIu64 " bytes (%.1fM)", + size, size / 1024.0 / 1024.0); + nbdkit_debug ("xz: %zu streams, %zu blocks", xz->nr_streams, xz->nr_blocks); + nbdkit_debug ("xz: maximum uncompressed block size %" PRIu64 " bytes (%.1fM)", + xz->max_uncompressed_block_size, + xz->max_uncompressed_block_size / 1024.0 / 1024.0); + + return xz; + + err1: + free (xz); + return NULL; +} + +static bool +check_header_magic (struct nbdkit_next_ops *next_ops, void *nxdata) +{ + char buf[XZ_HEADER_MAGIC_LEN]; + int err; + + if (next_ops->pread (nxdata, buf, XZ_HEADER_MAGIC_LEN, 0, 0, &err) == -1) { + nbdkit_error ("xz: could not read header magic: error %d", err); + return false; + } + if (memcmp (buf, XZ_HEADER_MAGIC, XZ_HEADER_MAGIC_LEN) != 0) + return false; + return true; +} + +/* For explanation of this function, see src/xz/list.c:parse_indexes + * in the xz sources. + */ +static lzma_index * +parse_indexes (struct nbdkit_next_ops *next_ops, void *nxdata, + size_t *nr_streams) +{ + lzma_ret r; + int64_t size, pos, index_size, offs; + int err; + uint8_t footer[LZMA_STREAM_HEADER_SIZE]; + uint8_t header[LZMA_STREAM_HEADER_SIZE]; + lzma_stream_flags footer_flags; + lzma_stream_flags header_flags; + lzma_stream strm = LZMA_STREAM_INIT; + lzma_index *combined_index = NULL; + lzma_index *this_index = NULL; + lzma_vli stream_padding = 0; + + *nr_streams = 0; + + /* Check file size is a multiple of 4 bytes. */ + pos = size = next_ops->get_size (nxdata); + if (pos == -1) { + nbdkit_error ("xz: get_size: %m"); + goto err; + } + if ((pos & 3) != 0) { + nbdkit_error ("xz: not an xz file: size is not a multiple of 4 bytes"); + goto err; + } + + /* Jump backwards through the file identifying each stream. */ + while (pos > 0) { + nbdkit_debug ("looping through streams: pos = %" PRIi64, pos); + + if (pos < LZMA_STREAM_HEADER_SIZE) { + nbdkit_error ("xz: corrupted file at %" PRIi64, pos); + goto err; + } + + if (next_ops->pread (nxdata, footer, LZMA_STREAM_HEADER_SIZE, + pos - LZMA_STREAM_HEADER_SIZE, + 0, &err) == -1) { + nbdkit_error ("xz: read stream footer: error %d", err); + goto err; + } + /* Skip stream padding. */ + if (footer[8] == 0 && footer[9] == 0 && + footer[10] == 0 && footer[11] == 0) { + stream_padding += 4; + pos -= 4; + continue; + } + + pos -= LZMA_STREAM_HEADER_SIZE; + (*nr_streams)++; + + nbdkit_debug ("decode stream footer at pos = %" PRIi64, pos); + + /* Does the stream footer look reasonable? */ + r = lzma_stream_footer_decode (&footer_flags, footer); + if (r != LZMA_OK) { + nbdkit_error ("xz: invalid stream footer (error %d)", r); + goto err; + } + nbdkit_debug ("backward_size = %" PRIu64, + (uint64_t) footer_flags.backward_size); + index_size = footer_flags.backward_size; + if (pos < index_size + LZMA_STREAM_HEADER_SIZE) { + nbdkit_error ("xz: invalid stream footer"); + goto err; + } + + pos -= index_size; + nbdkit_debug ("decode index at pos = %" PRIi64, pos); + + /* Decode the index. */ + r = lzma_index_decoder (&strm, &this_index, UINT64_MAX); + if (r != LZMA_OK) { + nbdkit_error ("xz: invalid stream index (error %d)", r); + goto err; + } + + offs = pos; + do { + uint8_t buf[BUFSIZ]; + + strm.avail_in = index_size; + if (strm.avail_in > BUFSIZ) + strm.avail_in = BUFSIZ; + if (pos + strm.avail_in > size) + strm.avail_in = size - pos; + + if (next_ops->pread (nxdata, buf, strm.avail_in, offs, 0, &err) == -1) { + nbdkit_error ("xz: read index: error %d", err); + goto err; + } + offs += strm.avail_in; + index_size -= strm.avail_in; + + strm.next_in = buf; + r = lzma_code (&strm, LZMA_RUN); + } while (r == LZMA_OK); + + if (r != LZMA_STREAM_END) { + nbdkit_error ("xz: could not parse index (error %d)", r); + goto err; + } + + pos -= lzma_index_total_size (this_index) + LZMA_STREAM_HEADER_SIZE; + + nbdkit_debug ("decode stream header at pos = %" PRIi64, pos); + + /* Read and decode the stream header. */ + if (next_ops->pread (nxdata, header, LZMA_STREAM_HEADER_SIZE, pos, 0, + &err) == -1) { + nbdkit_error ("xz: read stream header: error %d", err); + goto err; + } + + r = lzma_stream_header_decode (&header_flags, header); + if (r != LZMA_OK) { + nbdkit_error ("xz: invalid stream header (error %d)", r); + goto err; + } + + /* Header and footer of the stream should be equal. */ + r = lzma_stream_flags_compare (&header_flags, &footer_flags); + if (r != LZMA_OK) { + nbdkit_error ("xz: header and footer of stream are not equal (error %d)", + r); + goto err; + } + + /* Store the decoded stream flags in this_index. */ + r = lzma_index_stream_flags (this_index, &footer_flags); + if (r != LZMA_OK) { + nbdkit_error ("xz: cannot read stream_flags from index (error %d)", r); + goto err; + } + + /* Store the amount of stream padding so far. Needed to calculate + * compressed offsets correctly in multi-stream files. + */ + r = lzma_index_stream_padding (this_index, stream_padding); + if (r != LZMA_OK) { + nbdkit_error ("xz: cannot set stream_padding in index (error %d)", r); + goto err; + } + + if (combined_index != NULL) { + r = lzma_index_cat (this_index, combined_index, NULL); + if (r != LZMA_OK) { + nbdkit_error ("xz: cannot combine indexes"); + goto err; + } + } + + combined_index = this_index; + this_index = NULL; + } + + lzma_end (&strm); + + return combined_index; + + err: + lzma_end (&strm); + lzma_index_end (this_index, NULL); + lzma_index_end (combined_index, NULL); + return NULL; +} + +/* Iterate over the indexes to find the number of blocks and + * the largest block. + */ +static int +iter_indexes (lzma_index *idx, + size_t *nr_blocks, uint64_t *max_uncompressed_block_size) +{ + lzma_index_iter iter; + + *nr_blocks = 0; + *max_uncompressed_block_size = 0; + + lzma_index_iter_init (&iter, idx); + while (!lzma_index_iter_next (&iter, LZMA_INDEX_ITER_NONEMPTY_BLOCK)) { + if (iter.block.uncompressed_size > *max_uncompressed_block_size) + *max_uncompressed_block_size = iter.block.uncompressed_size; + (*nr_blocks)++; + } + + return 0; +} + +void +xzfile_close (xzfile *xz) +{ + if (xz) { + lzma_index_end (xz->idx, NULL); + free (xz); + } +} + +uint64_t +xzfile_max_uncompressed_block_size (xzfile *xz) +{ + return xz->max_uncompressed_block_size; +} + +uint64_t +xzfile_get_size (xzfile *xz) +{ + return lzma_index_uncompressed_size (xz->idx); +} + +char * +xzfile_read_block (xzfile *xz, + struct nbdkit_next_ops *next_ops, + void *nxdata, uint32_t flags, int *err, + uint64_t offset, + uint64_t *start_rtn, uint64_t *size_rtn) +{ + int64_t offs, size; + lzma_index_iter iter; + uint8_t header[LZMA_BLOCK_HEADER_SIZE_MAX]; + lzma_block block; + lzma_filter filters[LZMA_FILTERS_MAX + 1]; + lzma_ret r; + lzma_stream strm = LZMA_STREAM_INIT; + const size_t bufsize = 1024 * 1024; + unsigned char *buf = NULL; + char *data = NULL; + size_t i; + + /* Read the total size of the underlying disk, so we don't + * read over the end. + */ + size = next_ops->get_size (nxdata); + if (size == -1) { + nbdkit_error ("xz: get_size: %m"); + return NULL; + } + + /* Locate the block containing the uncompressed offset. */ + lzma_index_iter_init (&iter, xz->idx); + if (lzma_index_iter_locate (&iter, offset)) { + nbdkit_error ("cannot find offset %" PRIu64 " in the xz file", offset); + return NULL; + } + + *start_rtn = iter.block.uncompressed_file_offset; + *size_rtn = iter.block.uncompressed_size; + + nbdkit_debug ("seek: block number %d at file offset %" PRIu64, + (int) iter.block.number_in_file, + (uint64_t) iter.block.compressed_file_offset); + + /* Read the block header. Start by reading a single byte which + * tell us how big the block header is. + */ + offs = iter.block.compressed_file_offset; + if (next_ops->pread (nxdata, header, 1, offs, 0, err) == -1) { + nbdkit_error ("xz: read: could not read block header byte: error %d", *err); + return NULL; + } + offs++; + + if (header[0] == '\0') { + nbdkit_error ("xz: read: unexpected invalid block in file, header[0] = 0"); + return NULL; + } + + block.version = 0; + block.check = iter.stream.flags->check; + block.filters = filters; + block.header_size = lzma_block_header_size_decode (header[0]); + + /* Now read and decode the block header. */ + if (next_ops->pread (nxdata, &header[1], block.header_size-1, offs, + 0, err) == -1) { + nbdkit_error ("xz: read: could not read block of compressed data: " + "error %d", *err); + return NULL; + } + offs += block.header_size - 1; + + r = lzma_block_header_decode (&block, NULL, header); + if (r != LZMA_OK) { + nbdkit_error ("invalid block header (error %d)", r); + return NULL; + } + + /* What this actually does is it checks that the block header + * matches the index. + */ + r = lzma_block_compressed_size (&block, iter.block.unpadded_size); + if (r != LZMA_OK) { + nbdkit_error ("cannot calculate compressed size (error %d)", r); + goto err1; + } + + /* Read the block data. */ + r = lzma_block_decoder (&strm, &block); + if (r != LZMA_OK) { + nbdkit_error ("invalid block (error %d)", r); + goto err1; + } + + data = malloc (*size_rtn); + if (data == NULL) { + nbdkit_error ("malloc (%" PRIu64 " bytes): %m\n" + "NOTE: If this error occurs, you need to recompress your " + "xz files with a smaller block size. " + "Use: 'xz --block-size=16777216 ...'.", + *size_rtn); + goto err2; + } + + buf = malloc (bufsize); + if (buf == NULL) { + nbdkit_error ("malloc: %m"); + goto err2; + } + + strm.next_in = NULL; + strm.avail_in = 0; + strm.next_out = (uint8_t *) data; + strm.avail_out = block.uncompressed_size; + do { + if (strm.avail_in == 0) { + strm.avail_in = bufsize; + if (offs + strm.avail_in > size) + strm.avail_in = size - offs; + if (strm.avail_in > 0) { + strm.next_in = buf; + if (next_ops->pread (nxdata, buf, strm.avail_in, offs, 0, err) == -1) { + nbdkit_error ("xz: read: error %d", *err); + goto err2; + } + offs += strm.avail_in; + } + } + + r = lzma_code (&strm, LZMA_RUN); + } while (r == LZMA_OK); + + if (r != LZMA_OK && r != LZMA_STREAM_END) { + nbdkit_error ("could not parse block data (error %d)", r); + goto err2; + } + + lzma_end (&strm); + + for (i = 0; filters[i].id != LZMA_VLI_UNKNOWN; ++i) + free (filters[i].options); + + free (buf); + + return data; + + err2: + lzma_end (&strm); + err1: + for (i = 0; filters[i].id != LZMA_VLI_UNKNOWN; ++i) + free (filters[i].options); + + free (data); + free (buf); + + return NULL; +} diff --git a/filters/xz/xzfile.h b/filters/xz/xzfile.h new file mode 100644 index 0000000..babd1ec --- /dev/null +++ b/filters/xz/xzfile.h @@ -0,0 +1,70 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* liblzma is a complex interface, so abstract it here. */ + +#ifndef NBDKIT_XZFILE_H +#define NBDKIT_XZFILE_H + +#include + +typedef struct xzfile xzfile; + +/* Open (and verify) the named xz file. */ +extern xzfile *xzfile_open (struct nbdkit_next_ops *next_ops, void *nxdata); + +/* Close the file and free up all resources. */ +extern void xzfile_close (xzfile *); + +/* Get (uncompressed) size of the largest block in the file. */ +extern uint64_t xzfile_max_uncompressed_block_size (xzfile *); + +/* Get the total uncompressed size of the file. */ +extern uint64_t xzfile_get_size (xzfile *); + +/* Read the xz file block that contains the byte at 'offset' in the + * uncompressed file. + * + * The uncompressed block of data, which probably begins before the + * requested byte and ends after it, is returned. The caller must + * free it. NULL is returned if there was an error. + * + * The start offset & size of the block relative to the uncompressed + * file are returned in *start and *size. + */ +extern char *xzfile_read_block (xzfile *xz, + struct nbdkit_next_ops *next_ops, + void *nxdata, uint32_t flags, int *err, + uint64_t offset, + uint64_t *start, uint64_t *size); + +#endif /* NBDKIT_XZFILE_H */ diff --git a/fuzzing/Makefile.am b/fuzzing/Makefile.am new file mode 100644 index 0000000..01e065c --- /dev/null +++ b/fuzzing/Makefile.am @@ -0,0 +1,42 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = \ + README \ + testcase_dir/newstyle-cflags \ + testcase_dir/newstyle-cflags-exportname \ + testcase_dir/newstyle-cflags-exportname-read4 \ + testcase_dir/newstyle-cflags-go \ + testcase_dir/newstyle-cflags-go-read \ + testcase_dir/newstyle-cflags-go-read4 \ + testcase_dir/newstyle-cflags-go-write diff --git a/fuzzing/Makefile.in b/fuzzing/Makefile.in new file mode 100644 index 0000000..5e81d54 --- /dev/null +++ b/fuzzing/Makefile.in @@ -0,0 +1,597 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +VPATH = @srcdir@ +am__is_gnu_make = { \ + if test -z '$(MAKELEVEL)'; then \ + false; \ + elif test -n '$(MAKE_HOST)'; then \ + true; \ + elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \ + true; \ + else \ + false; \ + fi; \ +} +am__make_running_with_option = \ + case $${target_option-} in \ + ?) ;; \ + *) echo "am__make_running_with_option: internal error: invalid" \ + "target option '$${target_option-}' specified" >&2; \ + exit 1;; \ + esac; \ + 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+# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/fuzzing/README b/fuzzing/README new file mode 100644 index 0000000..4476757 --- /dev/null +++ b/fuzzing/README @@ -0,0 +1,70 @@ +Fuzzing nbdkit using the American Fuzzy Lop (afl) fuzzer +-------------------------------------------------------- + +We can fuzz nbdkit using the -s (read from stdin) option, and feeding +in a file of "network" input. The stdout from nbdkit (ie. data that +would normally be sent back to the client) is ignored. + +You will need to recompile nbdkit with afl instrumentation: + + ./configure CC=/usr/bin/afl-gcc CXX=/usr/bin/afl-g++ + make clean + make + +The fuzzing/testcase_dir directory contains some initial testcases +that afl can use. + +Run multiple copies of afl-fuzz. Usually you should run 1 master (-M) +and as many slaves (-S) as you can. + +Master: + + mkdir -p fuzzing/sync_dir + afl-fuzz -i fuzzing/testcase_dir -o fuzzing/sync_dir -M fuzz01 \ + ./server/nbdkit -s ./plugins/memory/.libs/nbdkit-memory-plugin.so size=1M + +Slaves: + + # replace fuzzNN with fuzz02, fuzz03, etc. + afl-fuzz -i fuzzing/testcase_dir -o fuzzing/sync_dir -S fuzzNN \ + ./server/nbdkit -s ./plugins/memory/.libs/nbdkit-memory-plugin.so size=1M + +Test Coverage +------------- + +To find out if the fuzzing is covering all of the code, I used afl-cov +(https://github.com/mrash/afl-cov). Usage is rather complex, so +consult the README of that project, but in brief: + +(1) Create a second copy of the nbdkit source, and compile it with +profiling: + + ./configure CFLAGS="-O2 -g -pg -fprofile-arcs -ftest-coverage" + make clean + make + +(2) Assuming ../nbdkit-afl is the nbdkit source compiled with afl, and +the current directory is nbdkit compiled with profiling, then run the +command below. You can run this even while afl-fuzz is running. + + afl-cov -d ../nbdkit-afl/fuzzing/sync_dir \ + --code-dir . \ + --coverage-cmd "cat AFL_FILE | ./server/nbdkit -s ./plugins/memory/.libs/nbdkit-memory-plugin.so size=1M" + +This will create an HTML test coverage report in +../nbdkit-afl/fuzzing/sync_dir/cov/web/ + +Notes +----- + +To report security bugs, see ‘SECURITY’ in the top source directory. + +We only have testcases for the newstyle fixed protocol so far, but if +people report that they are exposing the oldstyle protocol to the +internet / untrusted clients then we could extend the testing for +that. + +We have only fuzzed the memory plugin, which is convenient because it +stores everything in memory and throws it away when nbdkit exits. +Since plugins can have bugs as well as the core server, it may be +productive to test other plugins and filters. diff --git a/fuzzing/testcase_dir/newstyle-cflags b/fuzzing/testcase_dir/newstyle-cflags new file mode 100644 index 0000000..fde1ac1 Binary files /dev/null and b/fuzzing/testcase_dir/newstyle-cflags differ diff --git a/fuzzing/testcase_dir/newstyle-cflags-exportname b/fuzzing/testcase_dir/newstyle-cflags-exportname new file mode 100644 index 0000000..fbdb80e Binary files /dev/null and b/fuzzing/testcase_dir/newstyle-cflags-exportname differ diff --git a/fuzzing/testcase_dir/newstyle-cflags-exportname-read4 b/fuzzing/testcase_dir/newstyle-cflags-exportname-read4 new file mode 100644 index 0000000..5842bbb Binary files /dev/null and b/fuzzing/testcase_dir/newstyle-cflags-exportname-read4 differ diff --git a/fuzzing/testcase_dir/newstyle-cflags-go b/fuzzing/testcase_dir/newstyle-cflags-go new file mode 100644 index 0000000..36ec2f4 Binary files /dev/null and b/fuzzing/testcase_dir/newstyle-cflags-go differ diff --git a/fuzzing/testcase_dir/newstyle-cflags-go-read b/fuzzing/testcase_dir/newstyle-cflags-go-read new file mode 100644 index 0000000..652e72d Binary files /dev/null and b/fuzzing/testcase_dir/newstyle-cflags-go-read differ diff --git a/fuzzing/testcase_dir/newstyle-cflags-go-read4 b/fuzzing/testcase_dir/newstyle-cflags-go-read4 new file mode 100644 index 0000000..addfd2f Binary files /dev/null and b/fuzzing/testcase_dir/newstyle-cflags-go-read4 differ diff --git a/fuzzing/testcase_dir/newstyle-cflags-go-write b/fuzzing/testcase_dir/newstyle-cflags-go-write new file mode 100644 index 0000000..f8c3ed3 Binary files /dev/null and b/fuzzing/testcase_dir/newstyle-cflags-go-write differ diff --git a/html/pod.css b/html/pod.css new file mode 100644 index 0000000..1c07ec8 --- /dev/null +++ b/html/pod.css @@ -0,0 +1,155 @@ +/* CSS to make pod2html files look a little bit better. */ + +body { + margin-left: 4em; +} + +body p, body ul, ol, body dl { + margin-left: 2em; + width: 31em; +} + +pre { + width: 31em; +} + +li { + padding-bottom: 0.5em; +} + +/* Code sections. */ + +pre { + background-color: #f8f8f8; + color: rgb(204,0,0); + font-weight: 550; + border-left: 6px solid rgb(204,64,64); + padding: 6px; + margin-left: 1em; + font-size: 120%; +} + +/* Bold, italic in man pages. */ +b, strong { + color: rgb(204,0,0); +} + +i, em { + color: rgb(204,0,0); +} + +/* Name heading. */ + +body > h1:first-of-type { + display: none; +} + +body > h1:first-of-type + p { + font-size: 125%; + font-weight: bold; + color: rgb(204,0,0); + margin-left: -32px; +} + +/* Warning heading in man pages. */ +a[name="warning"] { + -moz-border-radius-topleft: 5px; + -moz-border-radius-topright: 5px; + border-radius-topleft: 5px; + border-radius-topright: 5px; + + color: white; + background-color: rgb(204,0,0); +} +a[name="warning"]:before { + content: "\00a0\00a0\00a0"; +} +a[name="warning"]:after { + content: "\00a0\00a0\00a0"; +} + +/* Put the index on the right hand side in a floating box. */ +ul[id="index"] { + float: right; + width: 18em; + border-left: 3em solid white; + background-color: #fcfcfc; + margin-top: 32px; + padding-top: 0px; + margin-left: 1em; + padding-left: 1em; + padding-right: 1em; + font-size: 90%; +} + +ul[id="index"] a[href] { + text-decoration: none; +} + +ul[id="index"] a[href]:hover { + text-decoration: underline; +} + +ul[id="index"] a[href]:before { + content: '#\00a0'; + color: rgb(204,0,0); + font-size: x-small; +} + +ul[id="index"] { + width: 17em; + list-style: none; + margin-left: 0px; + margin-right: 0px; + padding-left: 0px; + padding-right: 0px; +} + +ul[id="index"] > li { + margin-bottom: 0.5em; +} + +ul[id="index"] > li ul { + width: 16em; + list-style: none; + margin-left: 0px; + margin-right: 0px; + padding-left: 0px; + padding-right: 0px; + margin-bottom: 0.5em; +} + +ul[id="index"] > li ul li { + display: inline; + margin-right: 1em; +} + +/* +ul[id="index"] > li ul li:after { + color: #ccc; + content: '\2014'; +} +*/ + +/* Get rid of those horrible
's :-( */ +hr { display: none; } + +/* Demote

's and set rest of headers relative. */ +h1 { + font-size: 100%; + color: black; + border-bottom: solid 1px rgb(204,0,0); +} + +h2 { + font-size: 95%; + border-bottom: none; +} + +h3 { + font-size: 90%; +} + +h4 { + font-size: 85%; +} diff --git a/include/Makefile.am b/include/Makefile.am new file mode 100644 index 0000000..0b28bfd --- /dev/null +++ b/include/Makefile.am @@ -0,0 +1,37 @@ +# nbdkit +# Copyright (C) 2013 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +include_HEADERS = \ + nbdkit-common.h \ + nbdkit-plugin.h \ + nbdkit-filter.h diff --git a/include/Makefile.in b/include/Makefile.in new file mode 100644 index 0000000..368b534 --- /dev/null +++ b/include/Makefile.in @@ -0,0 +1,712 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2013 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_COMMON_H +#define NBDKIT_COMMON_H + +#if !defined (NBDKIT_PLUGIN_H) && !defined (NBDKIT_FILTER_H) +#error this header file should not be directly included +#endif + +#include +#include +#include + +#ifdef __cplusplus +extern "C" { +#endif + +#if defined(__GNUC__) || defined(__clang__) +#define ATTRIBUTE_FORMAT_PRINTF(fmtpos, argpos) \ + __attribute__((__format__ (__printf__, fmtpos, argpos))) +#else +#define ATTRIBUTE_FORMAT_PRINTF(fmtpos, argpos) +#endif + +#define NBDKIT_THREAD_MODEL_SERIALIZE_CONNECTIONS 0 +#define NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS 1 +#define NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS 2 +#define NBDKIT_THREAD_MODEL_PARALLEL 3 + +#define NBDKIT_FLAG_MAY_TRIM (1<<0) /* Maps to !NBD_CMD_FLAG_NO_HOLE */ +#define NBDKIT_FLAG_FUA (1<<1) /* Maps to NBD_CMD_FLAG_FUA */ +#define NBDKIT_FLAG_REQ_ONE (1<<2) /* Maps to NBD_CMD_FLAG_REQ_ONE */ + +#define NBDKIT_FUA_NONE 0 +#define NBDKIT_FUA_EMULATE 1 +#define NBDKIT_FUA_NATIVE 2 + +#define NBDKIT_EXTENT_HOLE (1<<0) /* Same as NBD_STATE_HOLE */ +#define NBDKIT_EXTENT_ZERO (1<<1) /* Same as NBD_STATE_ZERO */ + +extern void nbdkit_error (const char *msg, ...) ATTRIBUTE_FORMAT_PRINTF (1, 2); +extern void nbdkit_verror (const char *msg, va_list args); +extern void nbdkit_debug (const char *msg, ...) ATTRIBUTE_FORMAT_PRINTF (1, 2); +extern void nbdkit_vdebug (const char *msg, va_list args); + +extern char *nbdkit_absolute_path (const char *path); +extern int64_t nbdkit_parse_size (const char *str); +extern int nbdkit_parse_bool (const char *str); +extern int nbdkit_read_password (const char *value, char **password); +extern char *nbdkit_realpath (const char *path); + +struct nbdkit_extents; +extern int nbdkit_add_extent (struct nbdkit_extents *, + uint64_t offset, uint64_t length, uint32_t type); + +/* A static non-NULL pointer which can be used when you don't need a + * per-connection handle. + */ +#define NBDKIT_HANDLE_NOT_NEEDED (&errno) + +#ifdef __cplusplus +} +#endif + +#ifdef __cplusplus +#define NBDKIT_CXX_LANG_C extern "C" +#else +#define NBDKIT_CXX_LANG_C /* nothing */ +#endif + +#endif /* NBDKIT_COMMON_H */ diff --git a/include/nbdkit-filter.h b/include/nbdkit-filter.h new file mode 100644 index 0000000..9b6cd6e --- /dev/null +++ b/include/nbdkit-filter.h @@ -0,0 +1,180 @@ +/* nbdkit + * Copyright (C) 2013-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* See nbdkit-filter(3) for documentation and how to write a filter. */ + +#ifndef NBDKIT_FILTER_H +#define NBDKIT_FILTER_H + +#include + +#include + +#ifdef __cplusplus +extern "C" { +#endif + +#define NBDKIT_FILTER_API_VERSION 2 + +struct nbdkit_extent { + uint64_t offset; + uint64_t length; + uint32_t type; +}; + +extern struct nbdkit_extents *nbdkit_extents_new (uint64_t start, uint64_t end); +extern void nbdkit_extents_free (struct nbdkit_extents *); +extern size_t nbdkit_extents_count (const struct nbdkit_extents *); +extern struct nbdkit_extent nbdkit_get_extent (const struct nbdkit_extents *, + size_t); + +typedef int nbdkit_next_config (void *nxdata, + const char *key, const char *value); +typedef int nbdkit_next_config_complete (void *nxdata); +typedef int nbdkit_next_open (void *nxdata, + int readonly); + +struct nbdkit_next_ops { + int64_t (*get_size) (void *nxdata); + + int (*can_write) (void *nxdata); + int (*can_flush) (void *nxdata); + int (*is_rotational) (void *nxdata); + int (*can_trim) (void *nxdata); + int (*can_zero) (void *nxdata); + int (*can_extents) (void *nxdata); + int (*can_fua) (void *nxdata); + int (*can_multi_conn) (void *nxdata); + + int (*pread) (void *nxdata, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err); + int (*pwrite) (void *nxdata, + const void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err); + int (*flush) (void *nxdata, uint32_t flags, int *err); + int (*trim) (void *nxdata, uint32_t count, uint64_t offset, uint32_t flags, + int *err); + int (*zero) (void *nxdata, uint32_t count, uint64_t offset, uint32_t flags, + int *err); + int (*extents) (void *nxdata, uint32_t count, uint64_t offset, uint32_t flags, + struct nbdkit_extents *extents, int *err); +}; + +struct nbdkit_filter { + /* Do not set these fields directly; use NBDKIT_REGISTER_FILTER. + * They exist so that we can diagnose filters compiled against + * one version of the header with a runtime compiled against a + * different version. + */ + int _api_version; + int _thread_model; + + /* Because there is no ABI guarantee, new fields may be added + * where logically appropriate. */ + const char *name; + const char *longname; + const char *version; + const char *description; + + void (*load) (void); + void (*unload) (void); + + int (*config) (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value); + int (*config_complete) (nbdkit_next_config_complete *next, void *nxdata); + const char *config_help; + + void * (*open) (nbdkit_next_open *next, void *nxdata, + int readonly); + void (*close) (void *handle); + + int (*prepare) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + int (*finalize) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + + int64_t (*get_size) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + + int (*can_write) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + int (*can_flush) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + int (*is_rotational) (struct nbdkit_next_ops *next_ops, + void *nxdata, + void *handle); + int (*can_trim) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + int (*can_zero) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + int (*can_extents) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + int (*can_fua) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + int (*can_multi_conn) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle); + + int (*pread) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err); + int (*pwrite) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + const void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err); + int (*flush) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t flags, int *err); + int (*trim) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, uint32_t flags, + int *err); + int (*zero) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, uint32_t flags, + int *err); + int (*extents) (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, uint32_t flags, + struct nbdkit_extents *extents, int *err); +}; + +#define NBDKIT_REGISTER_FILTER(filter) \ + NBDKIT_CXX_LANG_C \ + struct nbdkit_filter * \ + filter_init (void) \ + { \ + (filter)._api_version = NBDKIT_FILTER_API_VERSION; \ + (filter)._thread_model = THREAD_MODEL; \ + return &(filter); \ + } + +#ifdef __cplusplus +} +#endif + +#endif /* NBDKIT_FILTER_H */ diff --git a/include/nbdkit-plugin.h b/include/nbdkit-plugin.h new file mode 100644 index 0000000..54b4ce2 --- /dev/null +++ b/include/nbdkit-plugin.h @@ -0,0 +1,150 @@ +/* nbdkit + * Copyright (C) 2013-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* See nbdkit-plugin(3) for documentation and how to write a plugin. */ + +#ifndef NBDKIT_PLUGIN_H +#define NBDKIT_PLUGIN_H + +#include + +#ifdef __cplusplus +extern "C" { +#endif + +/* By default, a plugin gets API version 1; but you may request + * version 2 prior to including this header */ +#ifndef NBDKIT_API_VERSION +#define NBDKIT_API_VERSION 1 +#elif (NBDKIT_API_VERSION - 0) < 1 || NBDKIT_API_VERSION > 2 +#error Unsupported API version +#endif + +struct nbdkit_plugin { + /* Do not set these fields directly; use NBDKIT_REGISTER_PLUGIN. + * They exist so that we can support plugins compiled against + * one version of the header with a runtime compiled against a + * different version with more (or fewer) fields. + */ + uint64_t _struct_size; + int _api_version; + int _thread_model; + + /* Plugins are responsible for these fields; see the documentation + * for semantics, and which fields are optional. New fields will + * only be added at the end of the struct. + */ + const char *name; + const char *longname; + const char *version; + const char *description; + + void (*load) (void); + void (*unload) (void); + + int (*config) (const char *key, const char *value); + int (*config_complete) (void); + const char *config_help; + + void * (*open) (int readonly); + void (*close) (void *handle); + + int64_t (*get_size) (void *handle); + + int (*can_write) (void *handle); + int (*can_flush) (void *handle); + int (*is_rotational) (void *handle); + int (*can_trim) (void *handle); + +#if NBDKIT_API_VERSION == 1 + int (*pread) (void *handle, void *buf, uint32_t count, uint64_t offset); + int (*pwrite) (void *handle, const void *buf, uint32_t count, uint64_t offset); + int (*flush) (void *handle); + int (*trim) (void *handle, uint32_t count, uint64_t offset); + int (*zero) (void *handle, uint32_t count, uint64_t offset, int may_trim); +#else + int (*_pread_old) (void *, void *, uint32_t, uint64_t); + int (*_pwrite_old) (void *, const void *, uint32_t, uint64_t); + int (*_flush_old) (void *); + int (*_trim_old) (void *, uint32_t, uint64_t); + int (*_zero_old) (void *, uint32_t, uint64_t, int); +#endif + + int errno_is_preserved; + + void (*dump_plugin) (void); + + int (*can_zero) (void *handle); + int (*can_fua) (void *handle); +#if NBDKIT_API_VERSION == 1 + int (*_unused1) (void *, void *, uint32_t, uint64_t); + int (*_unused2) (void *, const void *, uint32_t, uint64_t, uint32_t); + int (*_unused3) (void *, uint32_t); + int (*_unused4) (void *, uint32_t, uint64_t, uint32_t); + int (*_unused5) (void *, uint32_t, uint64_t, uint32_t); +#else + int (*pread) (void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags); + int (*pwrite) (void *handle, const void *buf, uint32_t count, + uint64_t offset, uint32_t flags); + int (*flush) (void *handle, uint32_t flags); + int (*trim) (void *handle, uint32_t count, uint64_t offset, uint32_t flags); + int (*zero) (void *handle, uint32_t count, uint64_t offset, uint32_t flags); +#endif + + const char *magic_config_key; + + int (*can_multi_conn) (void *handle); + + int (*can_extents) (void *handle); + int (*extents) (void *handle, uint32_t count, uint64_t offset, uint32_t flags, + struct nbdkit_extents *extents); +}; + +extern void nbdkit_set_error (int err); + +#define NBDKIT_REGISTER_PLUGIN(plugin) \ + NBDKIT_CXX_LANG_C \ + struct nbdkit_plugin * \ + plugin_init (void) \ + { \ + (plugin)._struct_size = sizeof (plugin); \ + (plugin)._api_version = NBDKIT_API_VERSION; \ + (plugin)._thread_model = THREAD_MODEL; \ + return &(plugin); \ + } + +#ifdef __cplusplus +} +#endif + +#endif /* NBDKIT_PLUGIN_H */ diff --git a/install-sh b/install-sh new file mode 100755 index 0000000..8175c64 --- /dev/null +++ b/install-sh @@ -0,0 +1,518 @@ +#!/bin/sh +# install - install a program, script, or datafile + +scriptversion=2018-03-11.20; # UTC + +# This originates from X11R5 (mit/util/scripts/install.sh), which was +# later released in X11R6 (xc/config/util/install.sh) with the +# following copyright and license. +# +# Copyright (C) 1994 X Consortium +# +# Permission is hereby granted, free of charge, to any person obtaining a copy +# of this software and associated documentation files (the "Software"), to +# deal in the Software without restriction, including without limitation the +# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or +# sell copies of the Software, and to permit persons to whom the Software is +# furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included in +# all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC- +# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +# +# Except as contained in this notice, the name of the X Consortium shall not +# be used in advertising or otherwise to promote the sale, use or other deal- +# ings in this Software without prior written authorization from the X Consor- +# tium. +# +# +# FSF changes to this file are in the public domain. +# +# Calling this script install-sh is preferred over install.sh, to prevent +# 'make' implicit rules from creating a file called install from it +# when there is no Makefile. +# +# This script is compatible with the BSD install script, but was written +# from scratch. + +tab=' ' +nl=' +' +IFS=" $tab$nl" + +# Set DOITPROG to "echo" to test this script. + +doit=${DOITPROG-} +doit_exec=${doit:-exec} + +# Put in absolute file names if you don't have them in your path; +# or use environment vars. + +chgrpprog=${CHGRPPROG-chgrp} +chmodprog=${CHMODPROG-chmod} +chownprog=${CHOWNPROG-chown} +cmpprog=${CMPPROG-cmp} +cpprog=${CPPROG-cp} +mkdirprog=${MKDIRPROG-mkdir} +mvprog=${MVPROG-mv} +rmprog=${RMPROG-rm} +stripprog=${STRIPPROG-strip} + +posix_mkdir= + +# Desired mode of installed file. +mode=0755 + +chgrpcmd= +chmodcmd=$chmodprog +chowncmd= +mvcmd=$mvprog +rmcmd="$rmprog -f" +stripcmd= + +src= +dst= +dir_arg= +dst_arg= + +copy_on_change=false +is_target_a_directory=possibly + +usage="\ +Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE + or: $0 [OPTION]... SRCFILES... DIRECTORY + or: $0 [OPTION]... -t DIRECTORY SRCFILES... + or: $0 [OPTION]... -d DIRECTORIES... + +In the 1st form, copy SRCFILE to DSTFILE. +In the 2nd and 3rd, copy all SRCFILES to DIRECTORY. +In the 4th, create DIRECTORIES. + +Options: + --help display this help and exit. + --version display version info and exit. + + -c (ignored) + -C install only if different (preserve the last data modification time) + -d create directories instead of installing files. + -g GROUP $chgrpprog installed files to GROUP. + -m MODE $chmodprog installed files to MODE. + -o USER $chownprog installed files to USER. + -s $stripprog installed files. + -t DIRECTORY install into DIRECTORY. + -T report an error if DSTFILE is a directory. + +Environment variables override the default commands: + CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG + RMPROG STRIPPROG +" + +while test $# -ne 0; do + case $1 in + -c) ;; + + -C) copy_on_change=true;; + + -d) dir_arg=true;; + + -g) chgrpcmd="$chgrpprog $2" + shift;; + + --help) echo "$usage"; exit $?;; + + -m) mode=$2 + case $mode in + *' '* | *"$tab"* | *"$nl"* | *'*'* | *'?'* | *'['*) + echo "$0: invalid mode: $mode" >&2 + exit 1;; + esac + shift;; + + -o) chowncmd="$chownprog $2" + shift;; + + -s) stripcmd=$stripprog;; + + -t) + is_target_a_directory=always + dst_arg=$2 + # Protect names problematic for 'test' and other utilities. + case $dst_arg in + -* | [=\(\)!]) dst_arg=./$dst_arg;; + esac + shift;; + + -T) is_target_a_directory=never;; + + --version) echo "$0 $scriptversion"; exit $?;; + + --) shift + break;; + + -*) echo "$0: invalid option: $1" >&2 + exit 1;; + + *) break;; + esac + shift +done + +# We allow the use of options -d and -T together, by making -d +# take the precedence; this is for compatibility with GNU install. + +if test -n "$dir_arg"; then + if test -n "$dst_arg"; then + echo "$0: target directory not allowed when installing a directory." >&2 + exit 1 + fi +fi + +if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then + # When -d is used, all remaining arguments are directories to create. + # When -t is used, the destination is already specified. + # Otherwise, the last argument is the destination. Remove it from $@. + for arg + do + if test -n "$dst_arg"; then + # $@ is not empty: it contains at least $arg. + set fnord "$@" "$dst_arg" + shift # fnord + fi + shift # arg + dst_arg=$arg + # Protect names problematic for 'test' and other utilities. + case $dst_arg in + -* | [=\(\)!]) dst_arg=./$dst_arg;; + esac + done +fi + +if test $# -eq 0; then + if test -z "$dir_arg"; then + echo "$0: no input file specified." >&2 + exit 1 + fi + # It's OK to call 'install-sh -d' without argument. + # This can happen when creating conditional directories. + exit 0 +fi + +if test -z "$dir_arg"; then + if test $# -gt 1 || test "$is_target_a_directory" = always; then + if test ! -d "$dst_arg"; then + echo "$0: $dst_arg: Is not a directory." >&2 + exit 1 + fi + fi +fi + +if test -z "$dir_arg"; then + do_exit='(exit $ret); exit $ret' + trap "ret=129; $do_exit" 1 + trap "ret=130; $do_exit" 2 + trap "ret=141; $do_exit" 13 + trap "ret=143; $do_exit" 15 + + # Set umask so as not to create temps with too-generous modes. + # However, 'strip' requires both read and write access to temps. + case $mode in + # Optimize common cases. + *644) cp_umask=133;; + *755) cp_umask=22;; + + *[0-7]) + if test -z "$stripcmd"; then + u_plus_rw= + else + u_plus_rw='% 200' + fi + cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;; + *) + if test -z "$stripcmd"; then + u_plus_rw= + else + u_plus_rw=,u+rw + fi + cp_umask=$mode$u_plus_rw;; + esac +fi + +for src +do + # Protect names problematic for 'test' and other utilities. + case $src in + -* | [=\(\)!]) src=./$src;; + esac + + if test -n "$dir_arg"; then + dst=$src + dstdir=$dst + test -d "$dstdir" + dstdir_status=$? + else + + # Waiting for this to be detected by the "$cpprog $src $dsttmp" command + # might cause directories to be created, which would be especially bad + # if $src (and thus $dsttmp) contains '*'. + if test ! -f "$src" && test ! -d "$src"; then + echo "$0: $src does not exist." >&2 + exit 1 + fi + + if test -z "$dst_arg"; then + echo "$0: no destination specified." >&2 + exit 1 + fi + dst=$dst_arg + + # If destination is a directory, append the input filename. + if test -d "$dst"; then + if test "$is_target_a_directory" = never; then + echo "$0: $dst_arg: Is a directory" >&2 + exit 1 + fi + dstdir=$dst + dstbase=`basename "$src"` + case $dst in + */) dst=$dst$dstbase;; + *) dst=$dst/$dstbase;; + esac + dstdir_status=0 + else + dstdir=`dirname "$dst"` + test -d "$dstdir" + dstdir_status=$? + fi + fi + + case $dstdir in + */) dstdirslash=$dstdir;; + *) dstdirslash=$dstdir/;; + esac + + obsolete_mkdir_used=false + + if test $dstdir_status != 0; then + case $posix_mkdir in + '') + # Create intermediate dirs using mode 755 as modified by the umask. + # This is like FreeBSD 'install' as of 1997-10-28. + umask=`umask` + case $stripcmd.$umask in + # Optimize common cases. + *[2367][2367]) mkdir_umask=$umask;; + .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;; + + *[0-7]) + mkdir_umask=`expr $umask + 22 \ + - $umask % 100 % 40 + $umask % 20 \ + - $umask % 10 % 4 + $umask % 2 + `;; + *) mkdir_umask=$umask,go-w;; + esac + + # With -d, create the new directory with the user-specified mode. + # Otherwise, rely on $mkdir_umask. + if test -n "$dir_arg"; then + mkdir_mode=-m$mode + else + mkdir_mode= + fi + + posix_mkdir=false + case $umask in + *[123567][0-7][0-7]) + # POSIX mkdir -p sets u+wx bits regardless of umask, which + # is incompatible with FreeBSD 'install' when (umask & 300) != 0. + ;; + *) + # Note that $RANDOM variable is not portable (e.g. dash); Use it + # here however when possible just to lower collision chance. + tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$ + + trap 'ret=$?; rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" 2>/dev/null; exit $ret' 0 + + # Because "mkdir -p" follows existing symlinks and we likely work + # directly in world-writeable /tmp, make sure that the '$tmpdir' + # directory is successfully created first before we actually test + # 'mkdir -p' feature. + if (umask $mkdir_umask && + $mkdirprog $mkdir_mode "$tmpdir" && + exec $mkdirprog $mkdir_mode -p -- "$tmpdir/a/b") >/dev/null 2>&1 + then + if test -z "$dir_arg" || { + # Check for POSIX incompatibilities with -m. + # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or + # other-writable bit of parent directory when it shouldn't. + # FreeBSD 6.1 mkdir -m -p sets mode of existing directory. + test_tmpdir="$tmpdir/a" + ls_ld_tmpdir=`ls -ld "$test_tmpdir"` + case $ls_ld_tmpdir in + d????-?r-*) different_mode=700;; + d????-?--*) different_mode=755;; + *) false;; + esac && + $mkdirprog -m$different_mode -p -- "$test_tmpdir" && { + ls_ld_tmpdir_1=`ls -ld "$test_tmpdir"` + test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1" + } + } + then posix_mkdir=: + fi + rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" + else + # Remove any dirs left behind by ancient mkdir implementations. + rmdir ./$mkdir_mode ./-p ./-- "$tmpdir" 2>/dev/null + fi + trap '' 0;; + esac;; + esac + + if + $posix_mkdir && ( + umask $mkdir_umask && + $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir" + ) + then : + else + + # The umask is ridiculous, or mkdir does not conform to POSIX, + # or it failed possibly due to a race condition. Create the + # directory the slow way, step by step, checking for races as we go. + + case $dstdir in + /*) prefix='/';; + [-=\(\)!]*) prefix='./';; + *) prefix='';; + esac + + oIFS=$IFS + IFS=/ + set -f + set fnord $dstdir + shift + set +f + IFS=$oIFS + + prefixes= + + for d + do + test X"$d" = X && continue + + prefix=$prefix$d + if test -d "$prefix"; then + prefixes= + else + if $posix_mkdir; then + (umask=$mkdir_umask && + $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break + # Don't fail if two instances are running concurrently. + test -d "$prefix" || exit 1 + else + case $prefix in + *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;; + *) qprefix=$prefix;; + esac + prefixes="$prefixes '$qprefix'" + fi + fi + prefix=$prefix/ + done + + if test -n "$prefixes"; then + # Don't fail if two instances are running concurrently. + (umask $mkdir_umask && + eval "\$doit_exec \$mkdirprog $prefixes") || + test -d "$dstdir" || exit 1 + obsolete_mkdir_used=true + fi + fi + fi + + if test -n "$dir_arg"; then + { test -z "$chowncmd" || $doit $chowncmd "$dst"; } && + { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } && + { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false || + test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1 + else + + # Make a couple of temp file names in the proper directory. + dsttmp=${dstdirslash}_inst.$$_ + rmtmp=${dstdirslash}_rm.$$_ + + # Trap to clean up those temp files at exit. + trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0 + + # Copy the file name to the temp name. + (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") && + + # and set any options; do chmod last to preserve setuid bits. + # + # If any of these fail, we abort the whole thing. If we want to + # ignore errors from any of these, just make sure not to ignore + # errors from the above "$doit $cpprog $src $dsttmp" command. + # + { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } && + { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } && + { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } && + { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } && + + # If -C, don't bother to copy if it wouldn't change the file. + if $copy_on_change && + old=`LC_ALL=C ls -dlL "$dst" 2>/dev/null` && + new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` && + set -f && + set X $old && old=:$2:$4:$5:$6 && + set X $new && new=:$2:$4:$5:$6 && + set +f && + test "$old" = "$new" && + $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1 + then + rm -f "$dsttmp" + else + # Rename the file to the real destination. + $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null || + + # The rename failed, perhaps because mv can't rename something else + # to itself, or perhaps because mv is so ancient that it does not + # support -f. + { + # Now remove or move aside any old file at destination location. + # We try this two ways since rm can't unlink itself on some + # systems and the destination file might be busy for other + # reasons. In this case, the final cleanup might fail but the new + # file should still install successfully. + { + test ! -f "$dst" || + $doit $rmcmd -f "$dst" 2>/dev/null || + { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null && + { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; } + } || + { echo "$0: cannot unlink or rename $dst" >&2 + (exit 1); exit 1 + } + } && + + # Now rename the file to the real destination. + $doit $mvcmd "$dsttmp" "$dst" + } + fi || exit 1 + + trap '' 0 + fi +done + +# Local variables: +# eval: (add-hook 'before-save-hook 'time-stamp) +# time-stamp-start: "scriptversion=" +# time-stamp-format: "%:y-%02m-%02d.%02H" +# time-stamp-time-zone: "UTC0" +# time-stamp-end: "; # UTC" +# End: diff --git a/ltmain.sh b/ltmain.sh new file mode 100644 index 0000000..7f3523d --- /dev/null +++ b/ltmain.sh @@ -0,0 +1,11149 @@ +#! /bin/sh +## DO NOT EDIT - This file generated from ./build-aux/ltmain.in +## by inline-source v2014-01-03.01 + +# libtool (GNU libtool) 2.4.6 +# Provide generalized library-building support services. +# Written by Gordon Matzigkeit , 1996 + +# Copyright (C) 1996-2015 Free Software Foundation, Inc. +# This is free software; see the source for copying conditions. There is NO +# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + +# GNU Libtool is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# As a special exception to the GNU General Public License, +# if you distribute this file as part of a program or library that +# is built using GNU Libtool, you may include this file under the +# same distribution terms that you use for the rest of that program. +# +# GNU Libtool is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + + +PROGRAM=libtool +PACKAGE=libtool +VERSION=2.4.6 +package_revision=2.4.6 + + +## ------ ## +## Usage. ## +## ------ ## + +# Run './libtool --help' for help with using this script from the +# command line. + + +## ------------------------------- ## +## User overridable command paths. ## +## ------------------------------- ## + +# After configure completes, it has a better idea of some of the +# shell tools we need than the defaults used by the functions shared +# with bootstrap, so set those here where they can still be over- +# ridden by the user, but otherwise take precedence. + +: ${AUTOCONF="autoconf"} +: ${AUTOMAKE="automake"} + + +## -------------------------- ## +## Source external libraries. ## +## -------------------------- ## + +# Much of our low-level functionality needs to be sourced from external +# libraries, which are installed to $pkgauxdir. + +# Set a version string for this script. +scriptversion=2015-01-20.17; # UTC + +# General shell script boiler plate, and helper functions. +# Written by Gary V. Vaughan, 2004 + +# Copyright (C) 2004-2015 Free Software Foundation, Inc. +# This is free software; see the source for copying conditions. There is NO +# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. + +# As a special exception to the GNU General Public License, if you distribute +# this file as part of a program or library that is built using GNU Libtool, +# you may include this file under the same distribution terms that you use +# for the rest of that program. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNES FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +# Please report bugs or propose patches to gary@gnu.org. + + +## ------ ## +## Usage. ## +## ------ ## + +# Evaluate this file near the top of your script to gain access to +# the functions and variables defined here: +# +# . `echo "$0" | ${SED-sed} 's|[^/]*$||'`/build-aux/funclib.sh +# +# If you need to override any of the default environment variable +# settings, do that before evaluating this file. + + +## -------------------- ## +## Shell normalisation. ## +## -------------------- ## + +# Some shells need a little help to be as Bourne compatible as possible. +# Before doing anything else, make sure all that help has been provided! + +DUALCASE=1; export DUALCASE # for MKS sh +if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then : + emulate sh + NULLCMD=: + # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which + # is contrary to our usage. Disable this feature. + alias -g '${1+"$@"}'='"$@"' + setopt NO_GLOB_SUBST +else + case `(set -o) 2>/dev/null` in *posix*) set -o posix ;; esac +fi + +# NLS nuisances: We save the old values in case they are required later. +_G_user_locale= +_G_safe_locale= +for _G_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES +do + eval "if test set = \"\${$_G_var+set}\"; then + save_$_G_var=\$$_G_var + $_G_var=C + export $_G_var + _G_user_locale=\"$_G_var=\\\$save_\$_G_var; \$_G_user_locale\" + _G_safe_locale=\"$_G_var=C; \$_G_safe_locale\" + fi" +done + +# CDPATH. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + +# Make sure IFS has a sensible default +sp=' ' +nl=' +' +IFS="$sp $nl" + +# There are apparently some retarded systems that use ';' as a PATH separator! +if test "${PATH_SEPARATOR+set}" != set; then + PATH_SEPARATOR=: + (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && { + (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 || + PATH_SEPARATOR=';' + } +fi + + + +## ------------------------- ## +## Locate command utilities. ## +## ------------------------- ## + + +# func_executable_p FILE +# ---------------------- +# Check that FILE is an executable regular file. +func_executable_p () +{ + test -f "$1" && test -x "$1" +} + + +# func_path_progs PROGS_LIST CHECK_FUNC [PATH] +# -------------------------------------------- +# Search for either a program that responds to --version with output +# containing "GNU", or else returned by CHECK_FUNC otherwise, by +# trying all the directories in PATH with each of the elements of +# PROGS_LIST. +# +# CHECK_FUNC should accept the path to a candidate program, and +# set $func_check_prog_result if it truncates its output less than +# $_G_path_prog_max characters. +func_path_progs () +{ + _G_progs_list=$1 + _G_check_func=$2 + _G_PATH=${3-"$PATH"} + + _G_path_prog_max=0 + _G_path_prog_found=false + _G_save_IFS=$IFS; IFS=${PATH_SEPARATOR-:} + for _G_dir in $_G_PATH; do + IFS=$_G_save_IFS + test -z "$_G_dir" && _G_dir=. + for _G_prog_name in $_G_progs_list; do + for _exeext in '' .EXE; do + _G_path_prog=$_G_dir/$_G_prog_name$_exeext + func_executable_p "$_G_path_prog" || continue + case `"$_G_path_prog" --version 2>&1` in + *GNU*) func_path_progs_result=$_G_path_prog _G_path_prog_found=: ;; + *) $_G_check_func $_G_path_prog + func_path_progs_result=$func_check_prog_result + ;; + esac + $_G_path_prog_found && break 3 + done + done + done + IFS=$_G_save_IFS + test -z "$func_path_progs_result" && { + echo "no acceptable sed could be found in \$PATH" >&2 + exit 1 + } +} + + +# We want to be able to use the functions in this file before configure +# has figured out where the best binaries are kept, which means we have +# to search for them ourselves - except when the results are already set +# where we skip the searches. + +# Unless the user overrides by setting SED, search the path for either GNU +# sed, or the sed that truncates its output the least. +test -z "$SED" && { + _G_sed_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/ + for _G_i in 1 2 3 4 5 6 7; do + _G_sed_script=$_G_sed_script$nl$_G_sed_script + done + echo "$_G_sed_script" 2>/dev/null | sed 99q >conftest.sed + _G_sed_script= + + func_check_prog_sed () + { + _G_path_prog=$1 + + _G_count=0 + printf 0123456789 >conftest.in + while : + do + cat conftest.in conftest.in >conftest.tmp + mv conftest.tmp conftest.in + cp conftest.in conftest.nl + echo '' >> conftest.nl + "$_G_path_prog" -f conftest.sed conftest.out 2>/dev/null || break + diff conftest.out conftest.nl >/dev/null 2>&1 || break + _G_count=`expr $_G_count + 1` + if test "$_G_count" -gt "$_G_path_prog_max"; then + # Best one so far, save it but keep looking for a better one + func_check_prog_result=$_G_path_prog + _G_path_prog_max=$_G_count + fi + # 10*(2^10) chars as input seems more than enough + test 10 -lt "$_G_count" && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out + } + + func_path_progs "sed gsed" func_check_prog_sed $PATH:/usr/xpg4/bin + rm -f conftest.sed + SED=$func_path_progs_result +} + + +# Unless the user overrides by setting GREP, search the path for either GNU +# grep, or the grep that truncates its output the least. +test -z "$GREP" && { + func_check_prog_grep () + { + _G_path_prog=$1 + + _G_count=0 + _G_path_prog_max=0 + printf 0123456789 >conftest.in + while : + do + cat conftest.in conftest.in >conftest.tmp + mv conftest.tmp conftest.in + cp conftest.in conftest.nl + echo 'GREP' >> conftest.nl + "$_G_path_prog" -e 'GREP$' -e '-(cannot match)-' conftest.out 2>/dev/null || break + diff conftest.out conftest.nl >/dev/null 2>&1 || break + _G_count=`expr $_G_count + 1` + if test "$_G_count" -gt "$_G_path_prog_max"; then + # Best one so far, save it but keep looking for a better one + func_check_prog_result=$_G_path_prog + _G_path_prog_max=$_G_count + fi + # 10*(2^10) chars as input seems more than enough + test 10 -lt "$_G_count" && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out + } + + func_path_progs "grep ggrep" func_check_prog_grep $PATH:/usr/xpg4/bin + GREP=$func_path_progs_result +} + + +## ------------------------------- ## +## User overridable command paths. ## +## ------------------------------- ## + +# All uppercase variable names are used for environment variables. These +# variables can be overridden by the user before calling a script that +# uses them if a suitable command of that name is not already available +# in the command search PATH. + +: ${CP="cp -f"} +: ${ECHO="printf %s\n"} +: ${EGREP="$GREP -E"} +: ${FGREP="$GREP -F"} +: ${LN_S="ln -s"} +: ${MAKE="make"} +: ${MKDIR="mkdir"} +: ${MV="mv -f"} +: ${RM="rm -f"} +: ${SHELL="${CONFIG_SHELL-/bin/sh}"} + + +## -------------------- ## +## Useful sed snippets. ## +## -------------------- ## + +sed_dirname='s|/[^/]*$||' +sed_basename='s|^.*/||' + +# Sed substitution that helps us do robust quoting. It backslashifies +# metacharacters that are still active within double-quoted strings. +sed_quote_subst='s|\([`"$\\]\)|\\\1|g' + +# Same as above, but do not quote variable references. +sed_double_quote_subst='s/\(["`\\]\)/\\\1/g' + +# Sed substitution that turns a string into a regex matching for the +# string literally. +sed_make_literal_regex='s|[].[^$\\*\/]|\\&|g' + +# Sed substitution that converts a w32 file name or path +# that contains forward slashes, into one that contains +# (escaped) backslashes. A very naive implementation. +sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g' + +# Re-'\' parameter expansions in output of sed_double_quote_subst that +# were '\'-ed in input to the same. If an odd number of '\' preceded a +# '$' in input to sed_double_quote_subst, that '$' was protected from +# expansion. Since each input '\' is now two '\'s, look for any number +# of runs of four '\'s followed by two '\'s and then a '$'. '\' that '$'. +_G_bs='\\' +_G_bs2='\\\\' +_G_bs4='\\\\\\\\' +_G_dollar='\$' +sed_double_backslash="\ + s/$_G_bs4/&\\ +/g + s/^$_G_bs2$_G_dollar/$_G_bs&/ + s/\\([^$_G_bs]\\)$_G_bs2$_G_dollar/\\1$_G_bs2$_G_bs$_G_dollar/g + s/\n//g" + + +## ----------------- ## +## Global variables. ## +## ----------------- ## + +# Except for the global variables explicitly listed below, the following +# functions in the '^func_' namespace, and the '^require_' namespace +# variables initialised in the 'Resource management' section, sourcing +# this file will not pollute your global namespace with anything +# else. There's no portable way to scope variables in Bourne shell +# though, so actually running these functions will sometimes place +# results into a variable named after the function, and often use +# temporary variables in the '^_G_' namespace. If you are careful to +# avoid using those namespaces casually in your sourcing script, things +# should continue to work as you expect. And, of course, you can freely +# overwrite any of the functions or variables defined here before +# calling anything to customize them. + +EXIT_SUCCESS=0 +EXIT_FAILURE=1 +EXIT_MISMATCH=63 # $? = 63 is used to indicate version mismatch to missing. +EXIT_SKIP=77 # $? = 77 is used to indicate a skipped test to automake. + +# Allow overriding, eg assuming that you follow the convention of +# putting '$debug_cmd' at the start of all your functions, you can get +# bash to show function call trace with: +# +# debug_cmd='eval echo "${FUNCNAME[0]} $*" >&2' bash your-script-name +debug_cmd=${debug_cmd-":"} +exit_cmd=: + +# By convention, finish your script with: +# +# exit $exit_status +# +# so that you can set exit_status to non-zero if you want to indicate +# something went wrong during execution without actually bailing out at +# the point of failure. +exit_status=$EXIT_SUCCESS + +# Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh +# is ksh but when the shell is invoked as "sh" and the current value of +# the _XPG environment variable is not equal to 1 (one), the special +# positional parameter $0, within a function call, is the name of the +# function. +progpath=$0 + +# The name of this program. +progname=`$ECHO "$progpath" |$SED "$sed_basename"` + +# Make sure we have an absolute progpath for reexecution: +case $progpath in + [\\/]*|[A-Za-z]:\\*) ;; + *[\\/]*) + progdir=`$ECHO "$progpath" |$SED "$sed_dirname"` + progdir=`cd "$progdir" && pwd` + progpath=$progdir/$progname + ;; + *) + _G_IFS=$IFS + IFS=${PATH_SEPARATOR-:} + for progdir in $PATH; do + IFS=$_G_IFS + test -x "$progdir/$progname" && break + done + IFS=$_G_IFS + test -n "$progdir" || progdir=`pwd` + progpath=$progdir/$progname + ;; +esac + + +## ----------------- ## +## Standard options. ## +## ----------------- ## + +# The following options affect the operation of the functions defined +# below, and should be set appropriately depending on run-time para- +# meters passed on the command line. + +opt_dry_run=false +opt_quiet=false +opt_verbose=false + +# Categories 'all' and 'none' are always available. Append any others +# you will pass as the first argument to func_warning from your own +# code. +warning_categories= + +# By default, display warnings according to 'opt_warning_types'. Set +# 'warning_func' to ':' to elide all warnings, or func_fatal_error to +# treat the next displayed warning as a fatal error. +warning_func=func_warn_and_continue + +# Set to 'all' to display all warnings, 'none' to suppress all +# warnings, or a space delimited list of some subset of +# 'warning_categories' to display only the listed warnings. +opt_warning_types=all + + +## -------------------- ## +## Resource management. ## +## -------------------- ## + +# This section contains definitions for functions that each ensure a +# particular resource (a file, or a non-empty configuration variable for +# example) is available, and if appropriate to extract default values +# from pertinent package files. Call them using their associated +# 'require_*' variable to ensure that they are executed, at most, once. +# +# It's entirely deliberate that calling these functions can set +# variables that don't obey the namespace limitations obeyed by the rest +# of this file, in order that that they be as useful as possible to +# callers. + + +# require_term_colors +# ------------------- +# Allow display of bold text on terminals that support it. +require_term_colors=func_require_term_colors +func_require_term_colors () +{ + $debug_cmd + + test -t 1 && { + # COLORTERM and USE_ANSI_COLORS environment variables take + # precedence, because most terminfo databases neglect to describe + # whether color sequences are supported. + test -n "${COLORTERM+set}" && : ${USE_ANSI_COLORS="1"} + + if test 1 = "$USE_ANSI_COLORS"; then + # Standard ANSI escape sequences + tc_reset='' + tc_bold=''; tc_standout='' + tc_red=''; tc_green='' + tc_blue=''; tc_cyan='' + else + # Otherwise trust the terminfo database after all. + test -n "`tput sgr0 2>/dev/null`" && { + tc_reset=`tput sgr0` + test -n "`tput bold 2>/dev/null`" && tc_bold=`tput bold` + tc_standout=$tc_bold + test -n "`tput smso 2>/dev/null`" && tc_standout=`tput smso` + test -n "`tput setaf 1 2>/dev/null`" && tc_red=`tput setaf 1` + test -n "`tput setaf 2 2>/dev/null`" && tc_green=`tput setaf 2` + test -n "`tput setaf 4 2>/dev/null`" && tc_blue=`tput setaf 4` + test -n "`tput setaf 5 2>/dev/null`" && tc_cyan=`tput setaf 5` + } + fi + } + + require_term_colors=: +} + + +## ----------------- ## +## Function library. ## +## ----------------- ## + +# This section contains a variety of useful functions to call in your +# scripts. Take note of the portable wrappers for features provided by +# some modern shells, which will fall back to slower equivalents on +# less featureful shells. + + +# func_append VAR VALUE +# --------------------- +# Append VALUE onto the existing contents of VAR. + + # We should try to minimise forks, especially on Windows where they are + # unreasonably slow, so skip the feature probes when bash or zsh are + # being used: + if test set = "${BASH_VERSION+set}${ZSH_VERSION+set}"; then + : ${_G_HAVE_ARITH_OP="yes"} + : ${_G_HAVE_XSI_OPS="yes"} + # The += operator was introduced in bash 3.1 + case $BASH_VERSION in + [12].* | 3.0 | 3.0*) ;; + *) + : ${_G_HAVE_PLUSEQ_OP="yes"} + ;; + esac + fi + + # _G_HAVE_PLUSEQ_OP + # Can be empty, in which case the shell is probed, "yes" if += is + # useable or anything else if it does not work. + test -z "$_G_HAVE_PLUSEQ_OP" \ + && (eval 'x=a; x+=" b"; test "a b" = "$x"') 2>/dev/null \ + && _G_HAVE_PLUSEQ_OP=yes + +if test yes = "$_G_HAVE_PLUSEQ_OP" +then + # This is an XSI compatible shell, allowing a faster implementation... + eval 'func_append () + { + $debug_cmd + + eval "$1+=\$2" + }' +else + # ...otherwise fall back to using expr, which is often a shell builtin. + func_append () + { + $debug_cmd + + eval "$1=\$$1\$2" + } +fi + + +# func_append_quoted VAR VALUE +# ---------------------------- +# Quote VALUE and append to the end of shell variable VAR, separated +# by a space. +if test yes = "$_G_HAVE_PLUSEQ_OP"; then + eval 'func_append_quoted () + { + $debug_cmd + + func_quote_for_eval "$2" + eval "$1+=\\ \$func_quote_for_eval_result" + }' +else + func_append_quoted () + { + $debug_cmd + + func_quote_for_eval "$2" + eval "$1=\$$1\\ \$func_quote_for_eval_result" + } +fi + + +# func_append_uniq VAR VALUE +# -------------------------- +# Append unique VALUE onto the existing contents of VAR, assuming +# entries are delimited by the first character of VALUE. For example: +# +# func_append_uniq options " --another-option option-argument" +# +# will only append to $options if " --another-option option-argument " +# is not already present somewhere in $options already (note spaces at +# each end implied by leading space in second argument). +func_append_uniq () +{ + $debug_cmd + + eval _G_current_value='`$ECHO $'$1'`' + _G_delim=`expr "$2" : '\(.\)'` + + case $_G_delim$_G_current_value$_G_delim in + *"$2$_G_delim"*) ;; + *) func_append "$@" ;; + esac +} + + +# func_arith TERM... +# ------------------ +# Set func_arith_result to the result of evaluating TERMs. + test -z "$_G_HAVE_ARITH_OP" \ + && (eval 'test 2 = $(( 1 + 1 ))') 2>/dev/null \ + && _G_HAVE_ARITH_OP=yes + +if test yes = "$_G_HAVE_ARITH_OP"; then + eval 'func_arith () + { + $debug_cmd + + func_arith_result=$(( $* )) + }' +else + func_arith () + { + $debug_cmd + + func_arith_result=`expr "$@"` + } +fi + + +# func_basename FILE +# ------------------ +# Set func_basename_result to FILE with everything up to and including +# the last / stripped. +if test yes = "$_G_HAVE_XSI_OPS"; then + # If this shell supports suffix pattern removal, then use it to avoid + # forking. Hide the definitions single quotes in case the shell chokes + # on unsupported syntax... + _b='func_basename_result=${1##*/}' + _d='case $1 in + */*) func_dirname_result=${1%/*}$2 ;; + * ) func_dirname_result=$3 ;; + esac' + +else + # ...otherwise fall back to using sed. + _b='func_basename_result=`$ECHO "$1" |$SED "$sed_basename"`' + _d='func_dirname_result=`$ECHO "$1" |$SED "$sed_dirname"` + if test "X$func_dirname_result" = "X$1"; then + func_dirname_result=$3 + else + func_append func_dirname_result "$2" + fi' +fi + +eval 'func_basename () +{ + $debug_cmd + + '"$_b"' +}' + + +# func_dirname FILE APPEND NONDIR_REPLACEMENT +# ------------------------------------------- +# Compute the dirname of FILE. If nonempty, add APPEND to the result, +# otherwise set result to NONDIR_REPLACEMENT. +eval 'func_dirname () +{ + $debug_cmd + + '"$_d"' +}' + + +# func_dirname_and_basename FILE APPEND NONDIR_REPLACEMENT +# -------------------------------------------------------- +# Perform func_basename and func_dirname in a single function +# call: +# dirname: Compute the dirname of FILE. If nonempty, +# add APPEND to the result, otherwise set result +# to NONDIR_REPLACEMENT. +# value returned in "$func_dirname_result" +# basename: Compute filename of FILE. +# value retuned in "$func_basename_result" +# For efficiency, we do not delegate to the functions above but instead +# duplicate the functionality here. +eval 'func_dirname_and_basename () +{ + $debug_cmd + + '"$_b"' + '"$_d"' +}' + + +# func_echo ARG... +# ---------------- +# Echo program name prefixed message. +func_echo () +{ + $debug_cmd + + _G_message=$* + + func_echo_IFS=$IFS + IFS=$nl + for _G_line in $_G_message; do + IFS=$func_echo_IFS + $ECHO "$progname: $_G_line" + done + IFS=$func_echo_IFS +} + + +# func_echo_all ARG... +# -------------------- +# Invoke $ECHO with all args, space-separated. +func_echo_all () +{ + $ECHO "$*" +} + + +# func_echo_infix_1 INFIX ARG... +# ------------------------------ +# Echo program name, followed by INFIX on the first line, with any +# additional lines not showing INFIX. +func_echo_infix_1 () +{ + $debug_cmd + + $require_term_colors + + _G_infix=$1; shift + _G_indent=$_G_infix + _G_prefix="$progname: $_G_infix: " + _G_message=$* + + # Strip color escape sequences before counting printable length + for _G_tc in "$tc_reset" "$tc_bold" "$tc_standout" "$tc_red" "$tc_green" "$tc_blue" "$tc_cyan" + do + test -n "$_G_tc" && { + _G_esc_tc=`$ECHO "$_G_tc" | $SED "$sed_make_literal_regex"` + _G_indent=`$ECHO "$_G_indent" | $SED "s|$_G_esc_tc||g"` + } + done + _G_indent="$progname: "`echo "$_G_indent" | $SED 's|.| |g'`" " ## exclude from sc_prohibit_nested_quotes + + func_echo_infix_1_IFS=$IFS + IFS=$nl + for _G_line in $_G_message; do + IFS=$func_echo_infix_1_IFS + $ECHO "$_G_prefix$tc_bold$_G_line$tc_reset" >&2 + _G_prefix=$_G_indent + done + IFS=$func_echo_infix_1_IFS +} + + +# func_error ARG... +# ----------------- +# Echo program name prefixed message to standard error. +func_error () +{ + $debug_cmd + + $require_term_colors + + func_echo_infix_1 " $tc_standout${tc_red}error$tc_reset" "$*" >&2 +} + + +# func_fatal_error ARG... +# ----------------------- +# Echo program name prefixed message to standard error, and exit. +func_fatal_error () +{ + $debug_cmd + + func_error "$*" + exit $EXIT_FAILURE +} + + +# func_grep EXPRESSION FILENAME +# ----------------------------- +# Check whether EXPRESSION matches any line of FILENAME, without output. +func_grep () +{ + $debug_cmd + + $GREP "$1" "$2" >/dev/null 2>&1 +} + + +# func_len STRING +# --------------- +# Set func_len_result to the length of STRING. STRING may not +# start with a hyphen. + test -z "$_G_HAVE_XSI_OPS" \ + && (eval 'x=a/b/c; + test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \ + && _G_HAVE_XSI_OPS=yes + +if test yes = "$_G_HAVE_XSI_OPS"; then + eval 'func_len () + { + $debug_cmd + + func_len_result=${#1} + }' +else + func_len () + { + $debug_cmd + + func_len_result=`expr "$1" : ".*" 2>/dev/null || echo $max_cmd_len` + } +fi + + +# func_mkdir_p DIRECTORY-PATH +# --------------------------- +# Make sure the entire path to DIRECTORY-PATH is available. +func_mkdir_p () +{ + $debug_cmd + + _G_directory_path=$1 + _G_dir_list= + + if test -n "$_G_directory_path" && test : != "$opt_dry_run"; then + + # Protect directory names starting with '-' + case $_G_directory_path in + -*) _G_directory_path=./$_G_directory_path ;; + esac + + # While some portion of DIR does not yet exist... + while test ! -d "$_G_directory_path"; do + # ...make a list in topmost first order. Use a colon delimited + # list incase some portion of path contains whitespace. + _G_dir_list=$_G_directory_path:$_G_dir_list + + # If the last portion added has no slash in it, the list is done + case $_G_directory_path in */*) ;; *) break ;; esac + + # ...otherwise throw away the child directory and loop + _G_directory_path=`$ECHO "$_G_directory_path" | $SED -e "$sed_dirname"` + done + _G_dir_list=`$ECHO "$_G_dir_list" | $SED 's|:*$||'` + + func_mkdir_p_IFS=$IFS; IFS=: + for _G_dir in $_G_dir_list; do + IFS=$func_mkdir_p_IFS + # mkdir can fail with a 'File exist' error if two processes + # try to create one of the directories concurrently. Don't + # stop in that case! + $MKDIR "$_G_dir" 2>/dev/null || : + done + IFS=$func_mkdir_p_IFS + + # Bail out if we (or some other process) failed to create a directory. + test -d "$_G_directory_path" || \ + func_fatal_error "Failed to create '$1'" + fi +} + + +# func_mktempdir [BASENAME] +# ------------------------- +# Make a temporary directory that won't clash with other running +# libtool processes, and avoids race conditions if possible. If +# given, BASENAME is the basename for that directory. +func_mktempdir () +{ + $debug_cmd + + _G_template=${TMPDIR-/tmp}/${1-$progname} + + if test : = "$opt_dry_run"; then + # Return a directory name, but don't create it in dry-run mode + _G_tmpdir=$_G_template-$$ + else + + # If mktemp works, use that first and foremost + _G_tmpdir=`mktemp -d "$_G_template-XXXXXXXX" 2>/dev/null` + + if test ! -d "$_G_tmpdir"; then + # Failing that, at least try and use $RANDOM to avoid a race + _G_tmpdir=$_G_template-${RANDOM-0}$$ + + func_mktempdir_umask=`umask` + umask 0077 + $MKDIR "$_G_tmpdir" + umask $func_mktempdir_umask + fi + + # If we're not in dry-run mode, bomb out on failure + test -d "$_G_tmpdir" || \ + func_fatal_error "cannot create temporary directory '$_G_tmpdir'" + fi + + $ECHO "$_G_tmpdir" +} + + +# func_normal_abspath PATH +# ------------------------ +# Remove doubled-up and trailing slashes, "." path components, +# and cancel out any ".." path components in PATH after making +# it an absolute path. +func_normal_abspath () +{ + $debug_cmd + + # These SED scripts presuppose an absolute path with a trailing slash. + _G_pathcar='s|^/\([^/]*\).*$|\1|' + _G_pathcdr='s|^/[^/]*||' + _G_removedotparts=':dotsl + s|/\./|/|g + t dotsl + s|/\.$|/|' + _G_collapseslashes='s|/\{1,\}|/|g' + _G_finalslash='s|/*$|/|' + + # Start from root dir and reassemble the path. + func_normal_abspath_result= + func_normal_abspath_tpath=$1 + func_normal_abspath_altnamespace= + case $func_normal_abspath_tpath in + "") + # Empty path, that just means $cwd. + func_stripname '' '/' "`pwd`" + func_normal_abspath_result=$func_stripname_result + return + ;; + # The next three entries are used to spot a run of precisely + # two leading slashes without using negated character classes; + # we take advantage of case's first-match behaviour. + ///*) + # Unusual form of absolute path, do nothing. + ;; + //*) + # Not necessarily an ordinary path; POSIX reserves leading '//' + # and for example Cygwin uses it to access remote file shares + # over CIFS/SMB, so we conserve a leading double slash if found. + func_normal_abspath_altnamespace=/ + ;; + /*) + # Absolute path, do nothing. + ;; + *) + # Relative path, prepend $cwd. + func_normal_abspath_tpath=`pwd`/$func_normal_abspath_tpath + ;; + esac + + # Cancel out all the simple stuff to save iterations. We also want + # the path to end with a slash for ease of parsing, so make sure + # there is one (and only one) here. + func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \ + -e "$_G_removedotparts" -e "$_G_collapseslashes" -e "$_G_finalslash"` + while :; do + # Processed it all yet? + if test / = "$func_normal_abspath_tpath"; then + # If we ascended to the root using ".." the result may be empty now. + if test -z "$func_normal_abspath_result"; then + func_normal_abspath_result=/ + fi + break + fi + func_normal_abspath_tcomponent=`$ECHO "$func_normal_abspath_tpath" | $SED \ + -e "$_G_pathcar"` + func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \ + -e "$_G_pathcdr"` + # Figure out what to do with it + case $func_normal_abspath_tcomponent in + "") + # Trailing empty path component, ignore it. + ;; + ..) + # Parent dir; strip last assembled component from result. + func_dirname "$func_normal_abspath_result" + func_normal_abspath_result=$func_dirname_result + ;; + *) + # Actual path component, append it. + func_append func_normal_abspath_result "/$func_normal_abspath_tcomponent" + ;; + esac + done + # Restore leading double-slash if one was found on entry. + func_normal_abspath_result=$func_normal_abspath_altnamespace$func_normal_abspath_result +} + + +# func_notquiet ARG... +# -------------------- +# Echo program name prefixed message only when not in quiet mode. +func_notquiet () +{ + $debug_cmd + + $opt_quiet || func_echo ${1+"$@"} + + # A bug in bash halts the script if the last line of a function + # fails when set -e is in force, so we need another command to + # work around that: + : +} + + +# func_relative_path SRCDIR DSTDIR +# -------------------------------- +# Set func_relative_path_result to the relative path from SRCDIR to DSTDIR. +func_relative_path () +{ + $debug_cmd + + func_relative_path_result= + func_normal_abspath "$1" + func_relative_path_tlibdir=$func_normal_abspath_result + func_normal_abspath "$2" + func_relative_path_tbindir=$func_normal_abspath_result + + # Ascend the tree starting from libdir + while :; do + # check if we have found a prefix of bindir + case $func_relative_path_tbindir in + $func_relative_path_tlibdir) + # found an exact match + func_relative_path_tcancelled= + break + ;; + $func_relative_path_tlibdir*) + # found a matching prefix + func_stripname "$func_relative_path_tlibdir" '' "$func_relative_path_tbindir" + func_relative_path_tcancelled=$func_stripname_result + if test -z "$func_relative_path_result"; then + func_relative_path_result=. + fi + break + ;; + *) + func_dirname $func_relative_path_tlibdir + func_relative_path_tlibdir=$func_dirname_result + if test -z "$func_relative_path_tlibdir"; then + # Have to descend all the way to the root! + func_relative_path_result=../$func_relative_path_result + func_relative_path_tcancelled=$func_relative_path_tbindir + break + fi + func_relative_path_result=../$func_relative_path_result + ;; + esac + done + + # Now calculate path; take care to avoid doubling-up slashes. + func_stripname '' '/' "$func_relative_path_result" + func_relative_path_result=$func_stripname_result + func_stripname '/' '/' "$func_relative_path_tcancelled" + if test -n "$func_stripname_result"; then + func_append func_relative_path_result "/$func_stripname_result" + fi + + # Normalisation. If bindir is libdir, return '.' else relative path. + if test -n "$func_relative_path_result"; then + func_stripname './' '' "$func_relative_path_result" + func_relative_path_result=$func_stripname_result + fi + + test -n "$func_relative_path_result" || func_relative_path_result=. + + : +} + + +# func_quote_for_eval ARG... +# -------------------------- +# Aesthetically quote ARGs to be evaled later. +# This function returns two values: +# i) func_quote_for_eval_result +# double-quoted, suitable for a subsequent eval +# ii) func_quote_for_eval_unquoted_result +# has all characters that are still active within double +# quotes backslashified. +func_quote_for_eval () +{ + $debug_cmd + + func_quote_for_eval_unquoted_result= + func_quote_for_eval_result= + while test 0 -lt $#; do + case $1 in + *[\\\`\"\$]*) + _G_unquoted_arg=`printf '%s\n' "$1" |$SED "$sed_quote_subst"` ;; + *) + _G_unquoted_arg=$1 ;; + esac + if test -n "$func_quote_for_eval_unquoted_result"; then + func_append func_quote_for_eval_unquoted_result " $_G_unquoted_arg" + else + func_append func_quote_for_eval_unquoted_result "$_G_unquoted_arg" + fi + + case $_G_unquoted_arg in + # Double-quote args containing shell metacharacters to delay + # word splitting, command substitution and variable expansion + # for a subsequent eval. + # Many Bourne shells cannot handle close brackets correctly + # in scan sets, so we specify it separately. + *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"") + _G_quoted_arg=\"$_G_unquoted_arg\" + ;; + *) + _G_quoted_arg=$_G_unquoted_arg + ;; + esac + + if test -n "$func_quote_for_eval_result"; then + func_append func_quote_for_eval_result " $_G_quoted_arg" + else + func_append func_quote_for_eval_result "$_G_quoted_arg" + fi + shift + done +} + + +# func_quote_for_expand ARG +# ------------------------- +# Aesthetically quote ARG to be evaled later; same as above, +# but do not quote variable references. +func_quote_for_expand () +{ + $debug_cmd + + case $1 in + *[\\\`\"]*) + _G_arg=`$ECHO "$1" | $SED \ + -e "$sed_double_quote_subst" -e "$sed_double_backslash"` ;; + *) + _G_arg=$1 ;; + esac + + case $_G_arg in + # Double-quote args containing shell metacharacters to delay + # word splitting and command substitution for a subsequent eval. + # Many Bourne shells cannot handle close brackets correctly + # in scan sets, so we specify it separately. + *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"") + _G_arg=\"$_G_arg\" + ;; + esac + + func_quote_for_expand_result=$_G_arg +} + + +# func_stripname PREFIX SUFFIX NAME +# --------------------------------- +# strip PREFIX and SUFFIX from NAME, and store in func_stripname_result. +# PREFIX and SUFFIX must not contain globbing or regex special +# characters, hashes, percent signs, but SUFFIX may contain a leading +# dot (in which case that matches only a dot). +if test yes = "$_G_HAVE_XSI_OPS"; then + eval 'func_stripname () + { + $debug_cmd + + # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are + # positional parameters, so assign one to ordinary variable first. + func_stripname_result=$3 + func_stripname_result=${func_stripname_result#"$1"} + func_stripname_result=${func_stripname_result%"$2"} + }' +else + func_stripname () + { + $debug_cmd + + case $2 in + .*) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%\\\\$2\$%%"`;; + *) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%$2\$%%"`;; + esac + } +fi + + +# func_show_eval CMD [FAIL_EXP] +# ----------------------------- +# Unless opt_quiet is true, then output CMD. Then, if opt_dryrun is +# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP +# is given, then evaluate it. +func_show_eval () +{ + $debug_cmd + + _G_cmd=$1 + _G_fail_exp=${2-':'} + + func_quote_for_expand "$_G_cmd" + eval "func_notquiet $func_quote_for_expand_result" + + $opt_dry_run || { + eval "$_G_cmd" + _G_status=$? + if test 0 -ne "$_G_status"; then + eval "(exit $_G_status); $_G_fail_exp" + fi + } +} + + +# func_show_eval_locale CMD [FAIL_EXP] +# ------------------------------------ +# Unless opt_quiet is true, then output CMD. Then, if opt_dryrun is +# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP +# is given, then evaluate it. Use the saved locale for evaluation. +func_show_eval_locale () +{ + $debug_cmd + + _G_cmd=$1 + _G_fail_exp=${2-':'} + + $opt_quiet || { + func_quote_for_expand "$_G_cmd" + eval "func_echo $func_quote_for_expand_result" + } + + $opt_dry_run || { + eval "$_G_user_locale + $_G_cmd" + _G_status=$? + eval "$_G_safe_locale" + if test 0 -ne "$_G_status"; then + eval "(exit $_G_status); $_G_fail_exp" + fi + } +} + + +# func_tr_sh +# ---------- +# Turn $1 into a string suitable for a shell variable name. +# Result is stored in $func_tr_sh_result. All characters +# not in the set a-zA-Z0-9_ are replaced with '_'. Further, +# if $1 begins with a digit, a '_' is prepended as well. +func_tr_sh () +{ + $debug_cmd + + case $1 in + [0-9]* | *[!a-zA-Z0-9_]*) + func_tr_sh_result=`$ECHO "$1" | $SED -e 's/^\([0-9]\)/_\1/' -e 's/[^a-zA-Z0-9_]/_/g'` + ;; + * ) + func_tr_sh_result=$1 + ;; + esac +} + + +# func_verbose ARG... +# ------------------- +# Echo program name prefixed message in verbose mode only. +func_verbose () +{ + $debug_cmd + + $opt_verbose && func_echo "$*" + + : +} + + +# func_warn_and_continue ARG... +# ----------------------------- +# Echo program name prefixed warning message to standard error. +func_warn_and_continue () +{ + $debug_cmd + + $require_term_colors + + func_echo_infix_1 "${tc_red}warning$tc_reset" "$*" >&2 +} + + +# func_warning CATEGORY ARG... +# ---------------------------- +# Echo program name prefixed warning message to standard error. Warning +# messages can be filtered according to CATEGORY, where this function +# elides messages where CATEGORY is not listed in the global variable +# 'opt_warning_types'. +func_warning () +{ + $debug_cmd + + # CATEGORY must be in the warning_categories list! + case " $warning_categories " in + *" $1 "*) ;; + *) func_internal_error "invalid warning category '$1'" ;; + esac + + _G_category=$1 + shift + + case " $opt_warning_types " in + *" $_G_category "*) $warning_func ${1+"$@"} ;; + esac +} + + +# func_sort_ver VER1 VER2 +# ----------------------- +# 'sort -V' is not generally available. +# Note this deviates from the version comparison in automake +# in that it treats 1.5 < 1.5.0, and treats 1.4.4a < 1.4-p3a +# but this should suffice as we won't be specifying old +# version formats or redundant trailing .0 in bootstrap.conf. +# If we did want full compatibility then we should probably +# use m4_version_compare from autoconf. +func_sort_ver () +{ + $debug_cmd + + printf '%s\n%s\n' "$1" "$2" \ + | sort -t. -k 1,1n -k 2,2n -k 3,3n -k 4,4n -k 5,5n -k 6,6n -k 7,7n -k 8,8n -k 9,9n +} + +# func_lt_ver PREV CURR +# --------------------- +# Return true if PREV and CURR are in the correct order according to +# func_sort_ver, otherwise false. Use it like this: +# +# func_lt_ver "$prev_ver" "$proposed_ver" || func_fatal_error "..." +func_lt_ver () +{ + $debug_cmd + + test "x$1" = x`func_sort_ver "$1" "$2" | $SED 1q` +} + + +# Local variables: +# mode: shell-script +# sh-indentation: 2 +# eval: (add-hook 'before-save-hook 'time-stamp) +# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC" +# time-stamp-time-zone: "UTC" +# End: +#! /bin/sh + +# Set a version string for this script. +scriptversion=2014-01-07.03; # UTC + +# A portable, pluggable option parser for Bourne shell. +# Written by Gary V. Vaughan, 2010 + +# Copyright (C) 2010-2015 Free Software Foundation, Inc. +# This is free software; see the source for copying conditions. There is NO +# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +# Please report bugs or propose patches to gary@gnu.org. + + +## ------ ## +## Usage. ## +## ------ ## + +# This file is a library for parsing options in your shell scripts along +# with assorted other useful supporting features that you can make use +# of too. +# +# For the simplest scripts you might need only: +# +# #!/bin/sh +# . relative/path/to/funclib.sh +# . relative/path/to/options-parser +# scriptversion=1.0 +# func_options ${1+"$@"} +# eval set dummy "$func_options_result"; shift +# ...rest of your script... +# +# In order for the '--version' option to work, you will need to have a +# suitably formatted comment like the one at the top of this file +# starting with '# Written by ' and ending with '# warranty; '. +# +# For '-h' and '--help' to work, you will also need a one line +# description of your script's purpose in a comment directly above the +# '# Written by ' line, like the one at the top of this file. +# +# The default options also support '--debug', which will turn on shell +# execution tracing (see the comment above debug_cmd below for another +# use), and '--verbose' and the func_verbose function to allow your script +# to display verbose messages only when your user has specified +# '--verbose'. +# +# After sourcing this file, you can plug processing for additional +# options by amending the variables from the 'Configuration' section +# below, and following the instructions in the 'Option parsing' +# section further down. + +## -------------- ## +## Configuration. ## +## -------------- ## + +# You should override these variables in your script after sourcing this +# file so that they reflect the customisations you have added to the +# option parser. + +# The usage line for option parsing errors and the start of '-h' and +# '--help' output messages. You can embed shell variables for delayed +# expansion at the time the message is displayed, but you will need to +# quote other shell meta-characters carefully to prevent them being +# expanded when the contents are evaled. +usage='$progpath [OPTION]...' + +# Short help message in response to '-h' and '--help'. Add to this or +# override it after sourcing this library to reflect the full set of +# options your script accepts. +usage_message="\ + --debug enable verbose shell tracing + -W, --warnings=CATEGORY + report the warnings falling in CATEGORY [all] + -v, --verbose verbosely report processing + --version print version information and exit + -h, --help print short or long help message and exit +" + +# Additional text appended to 'usage_message' in response to '--help'. +long_help_message=" +Warning categories include: + 'all' show all warnings + 'none' turn off all the warnings + 'error' warnings are treated as fatal errors" + +# Help message printed before fatal option parsing errors. +fatal_help="Try '\$progname --help' for more information." + + + +## ------------------------- ## +## Hook function management. ## +## ------------------------- ## + +# This section contains functions for adding, removing, and running hooks +# to the main code. A hook is just a named list of of function, that can +# be run in order later on. + +# func_hookable FUNC_NAME +# ----------------------- +# Declare that FUNC_NAME will run hooks added with +# 'func_add_hook FUNC_NAME ...'. +func_hookable () +{ + $debug_cmd + + func_append hookable_fns " $1" +} + + +# func_add_hook FUNC_NAME HOOK_FUNC +# --------------------------------- +# Request that FUNC_NAME call HOOK_FUNC before it returns. FUNC_NAME must +# first have been declared "hookable" by a call to 'func_hookable'. +func_add_hook () +{ + $debug_cmd + + case " $hookable_fns " in + *" $1 "*) ;; + *) func_fatal_error "'$1' does not accept hook functions." ;; + esac + + eval func_append ${1}_hooks '" $2"' +} + + +# func_remove_hook FUNC_NAME HOOK_FUNC +# ------------------------------------ +# Remove HOOK_FUNC from the list of functions called by FUNC_NAME. +func_remove_hook () +{ + $debug_cmd + + eval ${1}_hooks='`$ECHO "\$'$1'_hooks" |$SED "s| '$2'||"`' +} + + +# func_run_hooks FUNC_NAME [ARG]... +# --------------------------------- +# Run all hook functions registered to FUNC_NAME. +# It is assumed that the list of hook functions contains nothing more +# than a whitespace-delimited list of legal shell function names, and +# no effort is wasted trying to catch shell meta-characters or preserve +# whitespace. +func_run_hooks () +{ + $debug_cmd + + case " $hookable_fns " in + *" $1 "*) ;; + *) func_fatal_error "'$1' does not support hook funcions.n" ;; + esac + + eval _G_hook_fns=\$$1_hooks; shift + + for _G_hook in $_G_hook_fns; do + eval $_G_hook '"$@"' + + # store returned options list back into positional + # parameters for next 'cmd' execution. + eval _G_hook_result=\$${_G_hook}_result + eval set dummy "$_G_hook_result"; shift + done + + func_quote_for_eval ${1+"$@"} + func_run_hooks_result=$func_quote_for_eval_result +} + + + +## --------------- ## +## Option parsing. ## +## --------------- ## + +# In order to add your own option parsing hooks, you must accept the +# full positional parameter list in your hook function, remove any +# options that you action, and then pass back the remaining unprocessed +# options in '_result', escaped suitably for +# 'eval'. Like this: +# +# my_options_prep () +# { +# $debug_cmd +# +# # Extend the existing usage message. +# usage_message=$usage_message' +# -s, --silent don'\''t print informational messages +# ' +# +# func_quote_for_eval ${1+"$@"} +# my_options_prep_result=$func_quote_for_eval_result +# } +# func_add_hook func_options_prep my_options_prep +# +# +# my_silent_option () +# { +# $debug_cmd +# +# # Note that for efficiency, we parse as many options as we can +# # recognise in a loop before passing the remainder back to the +# # caller on the first unrecognised argument we encounter. +# while test $# -gt 0; do +# opt=$1; shift +# case $opt in +# --silent|-s) opt_silent=: ;; +# # Separate non-argument short options: +# -s*) func_split_short_opt "$_G_opt" +# set dummy "$func_split_short_opt_name" \ +# "-$func_split_short_opt_arg" ${1+"$@"} +# shift +# ;; +# *) set dummy "$_G_opt" "$*"; shift; break ;; +# esac +# done +# +# func_quote_for_eval ${1+"$@"} +# my_silent_option_result=$func_quote_for_eval_result +# } +# func_add_hook func_parse_options my_silent_option +# +# +# my_option_validation () +# { +# $debug_cmd +# +# $opt_silent && $opt_verbose && func_fatal_help "\ +# '--silent' and '--verbose' options are mutually exclusive." +# +# func_quote_for_eval ${1+"$@"} +# my_option_validation_result=$func_quote_for_eval_result +# } +# func_add_hook func_validate_options my_option_validation +# +# You'll alse need to manually amend $usage_message to reflect the extra +# options you parse. It's preferable to append if you can, so that +# multiple option parsing hooks can be added safely. + + +# func_options [ARG]... +# --------------------- +# All the functions called inside func_options are hookable. See the +# individual implementations for details. +func_hookable func_options +func_options () +{ + $debug_cmd + + func_options_prep ${1+"$@"} + eval func_parse_options \ + ${func_options_prep_result+"$func_options_prep_result"} + eval func_validate_options \ + ${func_parse_options_result+"$func_parse_options_result"} + + eval func_run_hooks func_options \ + ${func_validate_options_result+"$func_validate_options_result"} + + # save modified positional parameters for caller + func_options_result=$func_run_hooks_result +} + + +# func_options_prep [ARG]... +# -------------------------- +# All initialisations required before starting the option parse loop. +# Note that when calling hook functions, we pass through the list of +# positional parameters. If a hook function modifies that list, and +# needs to propogate that back to rest of this script, then the complete +# modified list must be put in 'func_run_hooks_result' before +# returning. +func_hookable func_options_prep +func_options_prep () +{ + $debug_cmd + + # Option defaults: + opt_verbose=false + opt_warning_types= + + func_run_hooks func_options_prep ${1+"$@"} + + # save modified positional parameters for caller + func_options_prep_result=$func_run_hooks_result +} + + +# func_parse_options [ARG]... +# --------------------------- +# The main option parsing loop. +func_hookable func_parse_options +func_parse_options () +{ + $debug_cmd + + func_parse_options_result= + + # this just eases exit handling + while test $# -gt 0; do + # Defer to hook functions for initial option parsing, so they + # get priority in the event of reusing an option name. + func_run_hooks func_parse_options ${1+"$@"} + + # Adjust func_parse_options positional parameters to match + eval set dummy "$func_run_hooks_result"; shift + + # Break out of the loop if we already parsed every option. + test $# -gt 0 || break + + _G_opt=$1 + shift + case $_G_opt in + --debug|-x) debug_cmd='set -x' + func_echo "enabling shell trace mode" + $debug_cmd + ;; + + --no-warnings|--no-warning|--no-warn) + set dummy --warnings none ${1+"$@"} + shift + ;; + + --warnings|--warning|-W) + test $# = 0 && func_missing_arg $_G_opt && break + case " $warning_categories $1" in + *" $1 "*) + # trailing space prevents matching last $1 above + func_append_uniq opt_warning_types " $1" + ;; + *all) + opt_warning_types=$warning_categories + ;; + *none) + opt_warning_types=none + warning_func=: + ;; + *error) + opt_warning_types=$warning_categories + warning_func=func_fatal_error + ;; + *) + func_fatal_error \ + "unsupported warning category: '$1'" + ;; + esac + shift + ;; + + --verbose|-v) opt_verbose=: ;; + --version) func_version ;; + -\?|-h) func_usage ;; + --help) func_help ;; + + # Separate optargs to long options (plugins may need this): + --*=*) func_split_equals "$_G_opt" + set dummy "$func_split_equals_lhs" \ + "$func_split_equals_rhs" ${1+"$@"} + shift + ;; + + # Separate optargs to short options: + -W*) + func_split_short_opt "$_G_opt" + set dummy "$func_split_short_opt_name" \ + "$func_split_short_opt_arg" ${1+"$@"} + shift + ;; + + # Separate non-argument short options: + -\?*|-h*|-v*|-x*) + func_split_short_opt "$_G_opt" + set dummy "$func_split_short_opt_name" \ + "-$func_split_short_opt_arg" ${1+"$@"} + shift + ;; + + --) break ;; + -*) func_fatal_help "unrecognised option: '$_G_opt'" ;; + *) set dummy "$_G_opt" ${1+"$@"}; shift; break ;; + esac + done + + # save modified positional parameters for caller + func_quote_for_eval ${1+"$@"} + func_parse_options_result=$func_quote_for_eval_result +} + + +# func_validate_options [ARG]... +# ------------------------------ +# Perform any sanity checks on option settings and/or unconsumed +# arguments. +func_hookable func_validate_options +func_validate_options () +{ + $debug_cmd + + # Display all warnings if -W was not given. + test -n "$opt_warning_types" || opt_warning_types=" $warning_categories" + + func_run_hooks func_validate_options ${1+"$@"} + + # Bail if the options were screwed! + $exit_cmd $EXIT_FAILURE + + # save modified positional parameters for caller + func_validate_options_result=$func_run_hooks_result +} + + + +## ----------------- ## +## Helper functions. ## +## ----------------- ## + +# This section contains the helper functions used by the rest of the +# hookable option parser framework in ascii-betical order. + + +# func_fatal_help ARG... +# ---------------------- +# Echo program name prefixed message to standard error, followed by +# a help hint, and exit. +func_fatal_help () +{ + $debug_cmd + + eval \$ECHO \""Usage: $usage"\" + eval \$ECHO \""$fatal_help"\" + func_error ${1+"$@"} + exit $EXIT_FAILURE +} + + +# func_help +# --------- +# Echo long help message to standard output and exit. +func_help () +{ + $debug_cmd + + func_usage_message + $ECHO "$long_help_message" + exit 0 +} + + +# func_missing_arg ARGNAME +# ------------------------ +# Echo program name prefixed message to standard error and set global +# exit_cmd. +func_missing_arg () +{ + $debug_cmd + + func_error "Missing argument for '$1'." + exit_cmd=exit +} + + +# func_split_equals STRING +# ------------------------ +# Set func_split_equals_lhs and func_split_equals_rhs shell variables after +# splitting STRING at the '=' sign. +test -z "$_G_HAVE_XSI_OPS" \ + && (eval 'x=a/b/c; + test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \ + && _G_HAVE_XSI_OPS=yes + +if test yes = "$_G_HAVE_XSI_OPS" +then + # This is an XSI compatible shell, allowing a faster implementation... + eval 'func_split_equals () + { + $debug_cmd + + func_split_equals_lhs=${1%%=*} + func_split_equals_rhs=${1#*=} + test "x$func_split_equals_lhs" = "x$1" \ + && func_split_equals_rhs= + }' +else + # ...otherwise fall back to using expr, which is often a shell builtin. + func_split_equals () + { + $debug_cmd + + func_split_equals_lhs=`expr "x$1" : 'x\([^=]*\)'` + func_split_equals_rhs= + test "x$func_split_equals_lhs" = "x$1" \ + || func_split_equals_rhs=`expr "x$1" : 'x[^=]*=\(.*\)$'` + } +fi #func_split_equals + + +# func_split_short_opt SHORTOPT +# ----------------------------- +# Set func_split_short_opt_name and func_split_short_opt_arg shell +# variables after splitting SHORTOPT after the 2nd character. +if test yes = "$_G_HAVE_XSI_OPS" +then + # This is an XSI compatible shell, allowing a faster implementation... + eval 'func_split_short_opt () + { + $debug_cmd + + func_split_short_opt_arg=${1#??} + func_split_short_opt_name=${1%"$func_split_short_opt_arg"} + }' +else + # ...otherwise fall back to using expr, which is often a shell builtin. + func_split_short_opt () + { + $debug_cmd + + func_split_short_opt_name=`expr "x$1" : 'x-\(.\)'` + func_split_short_opt_arg=`expr "x$1" : 'x-.\(.*\)$'` + } +fi #func_split_short_opt + + +# func_usage +# ---------- +# Echo short help message to standard output and exit. +func_usage () +{ + $debug_cmd + + func_usage_message + $ECHO "Run '$progname --help |${PAGER-more}' for full usage" + exit 0 +} + + +# func_usage_message +# ------------------ +# Echo short help message to standard output. +func_usage_message () +{ + $debug_cmd + + eval \$ECHO \""Usage: $usage"\" + echo + $SED -n 's|^# || + /^Written by/{ + x;p;x + } + h + /^Written by/q' < "$progpath" + echo + eval \$ECHO \""$usage_message"\" +} + + +# func_version +# ------------ +# Echo version message to standard output and exit. +func_version () +{ + $debug_cmd + + printf '%s\n' "$progname $scriptversion" + $SED -n ' + /(C)/!b go + :more + /\./!{ + N + s|\n# | | + b more + } + :go + /^# Written by /,/# warranty; / { + s|^# || + s|^# *$|| + s|\((C)\)[ 0-9,-]*[ ,-]\([1-9][0-9]* \)|\1 \2| + p + } + /^# Written by / { + s|^# || + p + } + /^warranty; /q' < "$progpath" + + exit $? +} + + +# Local variables: +# mode: shell-script +# sh-indentation: 2 +# eval: (add-hook 'before-save-hook 'time-stamp) +# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC" +# time-stamp-time-zone: "UTC" +# End: + +# Set a version string. +scriptversion='(GNU libtool) 2.4.6' + + +# func_echo ARG... +# ---------------- +# Libtool also displays the current mode in messages, so override +# funclib.sh func_echo with this custom definition. +func_echo () +{ + $debug_cmd + + _G_message=$* + + func_echo_IFS=$IFS + IFS=$nl + for _G_line in $_G_message; do + IFS=$func_echo_IFS + $ECHO "$progname${opt_mode+: $opt_mode}: $_G_line" + done + IFS=$func_echo_IFS +} + + +# func_warning ARG... +# ------------------- +# Libtool warnings are not categorized, so override funclib.sh +# func_warning with this simpler definition. +func_warning () +{ + $debug_cmd + + $warning_func ${1+"$@"} +} + + +## ---------------- ## +## Options parsing. ## +## ---------------- ## + +# Hook in the functions to make sure our own options are parsed during +# the option parsing loop. + +usage='$progpath [OPTION]... [MODE-ARG]...' + +# Short help message in response to '-h'. +usage_message="Options: + --config show all configuration variables + --debug enable verbose shell tracing + -n, --dry-run display commands without modifying any files + --features display basic configuration information and exit + --mode=MODE use operation mode MODE + --no-warnings equivalent to '-Wnone' + --preserve-dup-deps don't remove duplicate dependency libraries + --quiet, --silent don't print informational messages + --tag=TAG use configuration variables from tag TAG + -v, --verbose print more informational messages than default + --version print version information + -W, --warnings=CATEGORY report the warnings falling in CATEGORY [all] + -h, --help, --help-all print short, long, or detailed help message +" + +# Additional text appended to 'usage_message' in response to '--help'. +func_help () +{ + $debug_cmd + + func_usage_message + $ECHO "$long_help_message + +MODE must be one of the following: + + clean remove files from the build directory + compile compile a source file into a libtool object + execute automatically set library path, then run a program + finish complete the installation of libtool libraries + install install libraries or executables + link create a library or an executable + uninstall remove libraries from an installed directory + +MODE-ARGS vary depending on the MODE. When passed as first option, +'--mode=MODE' may be abbreviated as 'MODE' or a unique abbreviation of that. +Try '$progname --help --mode=MODE' for a more detailed description of MODE. + +When reporting a bug, please describe a test case to reproduce it and +include the following information: + + host-triplet: $host + shell: $SHELL + compiler: $LTCC + compiler flags: $LTCFLAGS + linker: $LD (gnu? $with_gnu_ld) + version: $progname (GNU libtool) 2.4.6 + automake: `($AUTOMAKE --version) 2>/dev/null |$SED 1q` + autoconf: `($AUTOCONF --version) 2>/dev/null |$SED 1q` + +Report bugs to . +GNU libtool home page: . +General help using GNU software: ." + exit 0 +} + + +# func_lo2o OBJECT-NAME +# --------------------- +# Transform OBJECT-NAME from a '.lo' suffix to the platform specific +# object suffix. + +lo2o=s/\\.lo\$/.$objext/ +o2lo=s/\\.$objext\$/.lo/ + +if test yes = "$_G_HAVE_XSI_OPS"; then + eval 'func_lo2o () + { + case $1 in + *.lo) func_lo2o_result=${1%.lo}.$objext ;; + * ) func_lo2o_result=$1 ;; + esac + }' + + # func_xform LIBOBJ-OR-SOURCE + # --------------------------- + # Transform LIBOBJ-OR-SOURCE from a '.o' or '.c' (or otherwise) + # suffix to a '.lo' libtool-object suffix. + eval 'func_xform () + { + func_xform_result=${1%.*}.lo + }' +else + # ...otherwise fall back to using sed. + func_lo2o () + { + func_lo2o_result=`$ECHO "$1" | $SED "$lo2o"` + } + + func_xform () + { + func_xform_result=`$ECHO "$1" | $SED 's|\.[^.]*$|.lo|'` + } +fi + + +# func_fatal_configuration ARG... +# ------------------------------- +# Echo program name prefixed message to standard error, followed by +# a configuration failure hint, and exit. +func_fatal_configuration () +{ + func_fatal_error ${1+"$@"} \ + "See the $PACKAGE documentation for more information." \ + "Fatal configuration error." +} + + +# func_config +# ----------- +# Display the configuration for all the tags in this script. +func_config () +{ + re_begincf='^# ### BEGIN LIBTOOL' + re_endcf='^# ### END LIBTOOL' + + # Default configuration. + $SED "1,/$re_begincf CONFIG/d;/$re_endcf CONFIG/,\$d" < "$progpath" + + # Now print the configurations for the tags. + for tagname in $taglist; do + $SED -n "/$re_begincf TAG CONFIG: $tagname\$/,/$re_endcf TAG CONFIG: $tagname\$/p" < "$progpath" + done + + exit $? +} + + +# func_features +# ------------- +# Display the features supported by this script. +func_features () +{ + echo "host: $host" + if test yes = "$build_libtool_libs"; then + echo "enable shared libraries" + else + echo "disable shared libraries" + fi + if test yes = "$build_old_libs"; then + echo "enable static libraries" + else + echo "disable static libraries" + fi + + exit $? +} + + +# func_enable_tag TAGNAME +# ----------------------- +# Verify that TAGNAME is valid, and either flag an error and exit, or +# enable the TAGNAME tag. We also add TAGNAME to the global $taglist +# variable here. +func_enable_tag () +{ + # Global variable: + tagname=$1 + + re_begincf="^# ### BEGIN LIBTOOL TAG CONFIG: $tagname\$" + re_endcf="^# ### END LIBTOOL TAG CONFIG: $tagname\$" + sed_extractcf=/$re_begincf/,/$re_endcf/p + + # Validate tagname. + case $tagname in + *[!-_A-Za-z0-9,/]*) + func_fatal_error "invalid tag name: $tagname" + ;; + esac + + # Don't test for the "default" C tag, as we know it's + # there but not specially marked. + case $tagname in + CC) ;; + *) + if $GREP "$re_begincf" "$progpath" >/dev/null 2>&1; then + taglist="$taglist $tagname" + + # Evaluate the configuration. Be careful to quote the path + # and the sed script, to avoid splitting on whitespace, but + # also don't use non-portable quotes within backquotes within + # quotes we have to do it in 2 steps: + extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"` + eval "$extractedcf" + else + func_error "ignoring unknown tag $tagname" + fi + ;; + esac +} + + +# func_check_version_match +# ------------------------ +# Ensure that we are using m4 macros, and libtool script from the same +# release of libtool. +func_check_version_match () +{ + if test "$package_revision" != "$macro_revision"; then + if test "$VERSION" != "$macro_version"; then + if test -z "$macro_version"; then + cat >&2 <<_LT_EOF +$progname: Version mismatch error. This is $PACKAGE $VERSION, but the +$progname: definition of this LT_INIT comes from an older release. +$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION +$progname: and run autoconf again. +_LT_EOF + else + cat >&2 <<_LT_EOF +$progname: Version mismatch error. This is $PACKAGE $VERSION, but the +$progname: definition of this LT_INIT comes from $PACKAGE $macro_version. +$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION +$progname: and run autoconf again. +_LT_EOF + fi + else + cat >&2 <<_LT_EOF +$progname: Version mismatch error. This is $PACKAGE $VERSION, revision $package_revision, +$progname: but the definition of this LT_INIT comes from revision $macro_revision. +$progname: You should recreate aclocal.m4 with macros from revision $package_revision +$progname: of $PACKAGE $VERSION and run autoconf again. +_LT_EOF + fi + + exit $EXIT_MISMATCH + fi +} + + +# libtool_options_prep [ARG]... +# ----------------------------- +# Preparation for options parsed by libtool. +libtool_options_prep () +{ + $debug_mode + + # Option defaults: + opt_config=false + opt_dlopen= + opt_dry_run=false + opt_help=false + opt_mode= + opt_preserve_dup_deps=false + opt_quiet=false + + nonopt= + preserve_args= + + # Shorthand for --mode=foo, only valid as the first argument + case $1 in + clean|clea|cle|cl) + shift; set dummy --mode clean ${1+"$@"}; shift + ;; + compile|compil|compi|comp|com|co|c) + shift; set dummy --mode compile ${1+"$@"}; shift + ;; + execute|execut|execu|exec|exe|ex|e) + shift; set dummy --mode execute ${1+"$@"}; shift + ;; + finish|finis|fini|fin|fi|f) + shift; set dummy --mode finish ${1+"$@"}; shift + ;; + install|instal|insta|inst|ins|in|i) + shift; set dummy --mode install ${1+"$@"}; shift + ;; + link|lin|li|l) + shift; set dummy --mode link ${1+"$@"}; shift + ;; + uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u) + shift; set dummy --mode uninstall ${1+"$@"}; shift + ;; + esac + + # Pass back the list of options. + func_quote_for_eval ${1+"$@"} + libtool_options_prep_result=$func_quote_for_eval_result +} +func_add_hook func_options_prep libtool_options_prep + + +# libtool_parse_options [ARG]... +# --------------------------------- +# Provide handling for libtool specific options. +libtool_parse_options () +{ + $debug_cmd + + # Perform our own loop to consume as many options as possible in + # each iteration. + while test $# -gt 0; do + _G_opt=$1 + shift + case $_G_opt in + --dry-run|--dryrun|-n) + opt_dry_run=: + ;; + + --config) func_config ;; + + --dlopen|-dlopen) + opt_dlopen="${opt_dlopen+$opt_dlopen +}$1" + shift + ;; + + --preserve-dup-deps) + opt_preserve_dup_deps=: ;; + + --features) func_features ;; + + --finish) set dummy --mode finish ${1+"$@"}; shift ;; + + --help) opt_help=: ;; + + --help-all) opt_help=': help-all' ;; + + --mode) test $# = 0 && func_missing_arg $_G_opt && break + opt_mode=$1 + case $1 in + # Valid mode arguments: + clean|compile|execute|finish|install|link|relink|uninstall) ;; + + # Catch anything else as an error + *) func_error "invalid argument for $_G_opt" + exit_cmd=exit + break + ;; + esac + shift + ;; + + --no-silent|--no-quiet) + opt_quiet=false + func_append preserve_args " $_G_opt" + ;; + + --no-warnings|--no-warning|--no-warn) + opt_warning=false + func_append preserve_args " $_G_opt" + ;; + + --no-verbose) + opt_verbose=false + func_append preserve_args " $_G_opt" + ;; + + --silent|--quiet) + opt_quiet=: + opt_verbose=false + func_append preserve_args " $_G_opt" + ;; + + --tag) test $# = 0 && func_missing_arg $_G_opt && break + opt_tag=$1 + func_append preserve_args " $_G_opt $1" + func_enable_tag "$1" + shift + ;; + + --verbose|-v) opt_quiet=false + opt_verbose=: + func_append preserve_args " $_G_opt" + ;; + + # An option not handled by this hook function: + *) set dummy "$_G_opt" ${1+"$@"}; shift; break ;; + esac + done + + + # save modified positional parameters for caller + func_quote_for_eval ${1+"$@"} + libtool_parse_options_result=$func_quote_for_eval_result +} +func_add_hook func_parse_options libtool_parse_options + + + +# libtool_validate_options [ARG]... +# --------------------------------- +# Perform any sanity checks on option settings and/or unconsumed +# arguments. +libtool_validate_options () +{ + # save first non-option argument + if test 0 -lt $#; then + nonopt=$1 + shift + fi + + # preserve --debug + test : = "$debug_cmd" || func_append preserve_args " --debug" + + case $host in + # Solaris2 added to fix http://debbugs.gnu.org/cgi/bugreport.cgi?bug=16452 + # see also: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59788 + *cygwin* | *mingw* | *pw32* | *cegcc* | *solaris2* | *os2*) + # don't eliminate duplications in $postdeps and $predeps + opt_duplicate_compiler_generated_deps=: + ;; + *) + opt_duplicate_compiler_generated_deps=$opt_preserve_dup_deps + ;; + esac + + $opt_help || { + # Sanity checks first: + func_check_version_match + + test yes != "$build_libtool_libs" \ + && test yes != "$build_old_libs" \ + && func_fatal_configuration "not configured to build any kind of library" + + # Darwin sucks + eval std_shrext=\"$shrext_cmds\" + + # Only execute mode is allowed to have -dlopen flags. + if test -n "$opt_dlopen" && test execute != "$opt_mode"; then + func_error "unrecognized option '-dlopen'" + $ECHO "$help" 1>&2 + exit $EXIT_FAILURE + fi + + # Change the help message to a mode-specific one. + generic_help=$help + help="Try '$progname --help --mode=$opt_mode' for more information." + } + + # Pass back the unparsed argument list + func_quote_for_eval ${1+"$@"} + libtool_validate_options_result=$func_quote_for_eval_result +} +func_add_hook func_validate_options libtool_validate_options + + +# Process options as early as possible so that --help and --version +# can return quickly. +func_options ${1+"$@"} +eval set dummy "$func_options_result"; shift + + + +## ----------- ## +## Main. ## +## ----------- ## + +magic='%%%MAGIC variable%%%' +magic_exe='%%%MAGIC EXE variable%%%' + +# Global variables. +extracted_archives= +extracted_serial=0 + +# If this variable is set in any of the actions, the command in it +# will be execed at the end. This prevents here-documents from being +# left over by shells. +exec_cmd= + + +# A function that is used when there is no print builtin or printf. +func_fallback_echo () +{ + eval 'cat <<_LTECHO_EOF +$1 +_LTECHO_EOF' +} + +# func_generated_by_libtool +# True iff stdin has been generated by Libtool. This function is only +# a basic sanity check; it will hardly flush out determined imposters. +func_generated_by_libtool_p () +{ + $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1 +} + +# func_lalib_p file +# True iff FILE is a libtool '.la' library or '.lo' object file. +# This function is only a basic sanity check; it will hardly flush out +# determined imposters. +func_lalib_p () +{ + test -f "$1" && + $SED -e 4q "$1" 2>/dev/null | func_generated_by_libtool_p +} + +# func_lalib_unsafe_p file +# True iff FILE is a libtool '.la' library or '.lo' object file. +# This function implements the same check as func_lalib_p without +# resorting to external programs. To this end, it redirects stdin and +# closes it afterwards, without saving the original file descriptor. +# As a safety measure, use it only where a negative result would be +# fatal anyway. Works if 'file' does not exist. +func_lalib_unsafe_p () +{ + lalib_p=no + if test -f "$1" && test -r "$1" && exec 5<&0 <"$1"; then + for lalib_p_l in 1 2 3 4 + do + read lalib_p_line + case $lalib_p_line in + \#\ Generated\ by\ *$PACKAGE* ) lalib_p=yes; break;; + esac + done + exec 0<&5 5<&- + fi + test yes = "$lalib_p" +} + +# func_ltwrapper_script_p file +# True iff FILE is a libtool wrapper script +# This function is only a basic sanity check; it will hardly flush out +# determined imposters. +func_ltwrapper_script_p () +{ + test -f "$1" && + $lt_truncate_bin < "$1" 2>/dev/null | func_generated_by_libtool_p +} + +# func_ltwrapper_executable_p file +# True iff FILE is a libtool wrapper executable +# This function is only a basic sanity check; it will hardly flush out +# determined imposters. +func_ltwrapper_executable_p () +{ + func_ltwrapper_exec_suffix= + case $1 in + *.exe) ;; + *) func_ltwrapper_exec_suffix=.exe ;; + esac + $GREP "$magic_exe" "$1$func_ltwrapper_exec_suffix" >/dev/null 2>&1 +} + +# func_ltwrapper_scriptname file +# Assumes file is an ltwrapper_executable +# uses $file to determine the appropriate filename for a +# temporary ltwrapper_script. +func_ltwrapper_scriptname () +{ + func_dirname_and_basename "$1" "" "." + func_stripname '' '.exe' "$func_basename_result" + func_ltwrapper_scriptname_result=$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper +} + +# func_ltwrapper_p file +# True iff FILE is a libtool wrapper script or wrapper executable +# This function is only a basic sanity check; it will hardly flush out +# determined imposters. +func_ltwrapper_p () +{ + func_ltwrapper_script_p "$1" || func_ltwrapper_executable_p "$1" +} + + +# func_execute_cmds commands fail_cmd +# Execute tilde-delimited COMMANDS. +# If FAIL_CMD is given, eval that upon failure. +# FAIL_CMD may read-access the current command in variable CMD! +func_execute_cmds () +{ + $debug_cmd + + save_ifs=$IFS; IFS='~' + for cmd in $1; do + IFS=$sp$nl + eval cmd=\"$cmd\" + IFS=$save_ifs + func_show_eval "$cmd" "${2-:}" + done + IFS=$save_ifs +} + + +# func_source file +# Source FILE, adding directory component if necessary. +# Note that it is not necessary on cygwin/mingw to append a dot to +# FILE even if both FILE and FILE.exe exist: automatic-append-.exe +# behavior happens only for exec(3), not for open(2)! Also, sourcing +# 'FILE.' does not work on cygwin managed mounts. +func_source () +{ + $debug_cmd + + case $1 in + */* | *\\*) . "$1" ;; + *) . "./$1" ;; + esac +} + + +# func_resolve_sysroot PATH +# Replace a leading = in PATH with a sysroot. Store the result into +# func_resolve_sysroot_result +func_resolve_sysroot () +{ + func_resolve_sysroot_result=$1 + case $func_resolve_sysroot_result in + =*) + func_stripname '=' '' "$func_resolve_sysroot_result" + func_resolve_sysroot_result=$lt_sysroot$func_stripname_result + ;; + esac +} + +# func_replace_sysroot PATH +# If PATH begins with the sysroot, replace it with = and +# store the result into func_replace_sysroot_result. +func_replace_sysroot () +{ + case $lt_sysroot:$1 in + ?*:"$lt_sysroot"*) + func_stripname "$lt_sysroot" '' "$1" + func_replace_sysroot_result='='$func_stripname_result + ;; + *) + # Including no sysroot. + func_replace_sysroot_result=$1 + ;; + esac +} + +# func_infer_tag arg +# Infer tagged configuration to use if any are available and +# if one wasn't chosen via the "--tag" command line option. +# Only attempt this if the compiler in the base compile +# command doesn't match the default compiler. +# arg is usually of the form 'gcc ...' +func_infer_tag () +{ + $debug_cmd + + if test -n "$available_tags" && test -z "$tagname"; then + CC_quoted= + for arg in $CC; do + func_append_quoted CC_quoted "$arg" + done + CC_expanded=`func_echo_all $CC` + CC_quoted_expanded=`func_echo_all $CC_quoted` + case $@ in + # Blanks in the command may have been stripped by the calling shell, + # but not from the CC environment variable when configure was run. + " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \ + " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) ;; + # Blanks at the start of $base_compile will cause this to fail + # if we don't check for them as well. + *) + for z in $available_tags; do + if $GREP "^# ### BEGIN LIBTOOL TAG CONFIG: $z$" < "$progpath" > /dev/null; then + # Evaluate the configuration. + eval "`$SED -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`" + CC_quoted= + for arg in $CC; do + # Double-quote args containing other shell metacharacters. + func_append_quoted CC_quoted "$arg" + done + CC_expanded=`func_echo_all $CC` + CC_quoted_expanded=`func_echo_all $CC_quoted` + case "$@ " in + " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \ + " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) + # The compiler in the base compile command matches + # the one in the tagged configuration. + # Assume this is the tagged configuration we want. + tagname=$z + break + ;; + esac + fi + done + # If $tagname still isn't set, then no tagged configuration + # was found and let the user know that the "--tag" command + # line option must be used. + if test -z "$tagname"; then + func_echo "unable to infer tagged configuration" + func_fatal_error "specify a tag with '--tag'" +# else +# func_verbose "using $tagname tagged configuration" + fi + ;; + esac + fi +} + + + +# func_write_libtool_object output_name pic_name nonpic_name +# Create a libtool object file (analogous to a ".la" file), +# but don't create it if we're doing a dry run. +func_write_libtool_object () +{ + write_libobj=$1 + if test yes = "$build_libtool_libs"; then + write_lobj=\'$2\' + else + write_lobj=none + fi + + if test yes = "$build_old_libs"; then + write_oldobj=\'$3\' + else + write_oldobj=none + fi + + $opt_dry_run || { + cat >${write_libobj}T </dev/null` + if test "$?" -eq 0 && test -n "$func_convert_core_file_wine_to_w32_tmp"; then + func_convert_core_file_wine_to_w32_result=`$ECHO "$func_convert_core_file_wine_to_w32_tmp" | + $SED -e "$sed_naive_backslashify"` + else + func_convert_core_file_wine_to_w32_result= + fi + fi +} +# end: func_convert_core_file_wine_to_w32 + + +# func_convert_core_path_wine_to_w32 ARG +# Helper function used by path conversion functions when $build is *nix, and +# $host is mingw, cygwin, or some other w32 environment. Relies on a correctly +# configured wine environment available, with the winepath program in $build's +# $PATH. Assumes ARG has no leading or trailing path separator characters. +# +# ARG is path to be converted from $build format to win32. +# Result is available in $func_convert_core_path_wine_to_w32_result. +# Unconvertible file (directory) names in ARG are skipped; if no directory names +# are convertible, then the result may be empty. +func_convert_core_path_wine_to_w32 () +{ + $debug_cmd + + # unfortunately, winepath doesn't convert paths, only file names + func_convert_core_path_wine_to_w32_result= + if test -n "$1"; then + oldIFS=$IFS + IFS=: + for func_convert_core_path_wine_to_w32_f in $1; do + IFS=$oldIFS + func_convert_core_file_wine_to_w32 "$func_convert_core_path_wine_to_w32_f" + if test -n "$func_convert_core_file_wine_to_w32_result"; then + if test -z "$func_convert_core_path_wine_to_w32_result"; then + func_convert_core_path_wine_to_w32_result=$func_convert_core_file_wine_to_w32_result + else + func_append func_convert_core_path_wine_to_w32_result ";$func_convert_core_file_wine_to_w32_result" + fi + fi + done + IFS=$oldIFS + fi +} +# end: func_convert_core_path_wine_to_w32 + + +# func_cygpath ARGS... +# Wrapper around calling the cygpath program via LT_CYGPATH. This is used when +# when (1) $build is *nix and Cygwin is hosted via a wine environment; or (2) +# $build is MSYS and $host is Cygwin, or (3) $build is Cygwin. In case (1) or +# (2), returns the Cygwin file name or path in func_cygpath_result (input +# file name or path is assumed to be in w32 format, as previously converted +# from $build's *nix or MSYS format). In case (3), returns the w32 file name +# or path in func_cygpath_result (input file name or path is assumed to be in +# Cygwin format). Returns an empty string on error. +# +# ARGS are passed to cygpath, with the last one being the file name or path to +# be converted. +# +# Specify the absolute *nix (or w32) name to cygpath in the LT_CYGPATH +# environment variable; do not put it in $PATH. +func_cygpath () +{ + $debug_cmd + + if test -n "$LT_CYGPATH" && test -f "$LT_CYGPATH"; then + func_cygpath_result=`$LT_CYGPATH "$@" 2>/dev/null` + if test "$?" -ne 0; then + # on failure, ensure result is empty + func_cygpath_result= + fi + else + func_cygpath_result= + func_error "LT_CYGPATH is empty or specifies non-existent file: '$LT_CYGPATH'" + fi +} +#end: func_cygpath + + +# func_convert_core_msys_to_w32 ARG +# Convert file name or path ARG from MSYS format to w32 format. Return +# result in func_convert_core_msys_to_w32_result. +func_convert_core_msys_to_w32 () +{ + $debug_cmd + + # awkward: cmd appends spaces to result + func_convert_core_msys_to_w32_result=`( cmd //c echo "$1" ) 2>/dev/null | + $SED -e 's/[ ]*$//' -e "$sed_naive_backslashify"` +} +#end: func_convert_core_msys_to_w32 + + +# func_convert_file_check ARG1 ARG2 +# Verify that ARG1 (a file name in $build format) was converted to $host +# format in ARG2. Otherwise, emit an error message, but continue (resetting +# func_to_host_file_result to ARG1). +func_convert_file_check () +{ + $debug_cmd + + if test -z "$2" && test -n "$1"; then + func_error "Could not determine host file name corresponding to" + func_error " '$1'" + func_error "Continuing, but uninstalled executables may not work." + # Fallback: + func_to_host_file_result=$1 + fi +} +# end func_convert_file_check + + +# func_convert_path_check FROM_PATHSEP TO_PATHSEP FROM_PATH TO_PATH +# Verify that FROM_PATH (a path in $build format) was converted to $host +# format in TO_PATH. Otherwise, emit an error message, but continue, resetting +# func_to_host_file_result to a simplistic fallback value (see below). +func_convert_path_check () +{ + $debug_cmd + + if test -z "$4" && test -n "$3"; then + func_error "Could not determine the host path corresponding to" + func_error " '$3'" + func_error "Continuing, but uninstalled executables may not work." + # Fallback. This is a deliberately simplistic "conversion" and + # should not be "improved". See libtool.info. + if test "x$1" != "x$2"; then + lt_replace_pathsep_chars="s|$1|$2|g" + func_to_host_path_result=`echo "$3" | + $SED -e "$lt_replace_pathsep_chars"` + else + func_to_host_path_result=$3 + fi + fi +} +# end func_convert_path_check + + +# func_convert_path_front_back_pathsep FRONTPAT BACKPAT REPL ORIG +# Modifies func_to_host_path_result by prepending REPL if ORIG matches FRONTPAT +# and appending REPL if ORIG matches BACKPAT. +func_convert_path_front_back_pathsep () +{ + $debug_cmd + + case $4 in + $1 ) func_to_host_path_result=$3$func_to_host_path_result + ;; + esac + case $4 in + $2 ) func_append func_to_host_path_result "$3" + ;; + esac +} +# end func_convert_path_front_back_pathsep + + +################################################## +# $build to $host FILE NAME CONVERSION FUNCTIONS # +################################################## +# invoked via '$to_host_file_cmd ARG' +# +# In each case, ARG is the path to be converted from $build to $host format. +# Result will be available in $func_to_host_file_result. + + +# func_to_host_file ARG +# Converts the file name ARG from $build format to $host format. Return result +# in func_to_host_file_result. +func_to_host_file () +{ + $debug_cmd + + $to_host_file_cmd "$1" +} +# end func_to_host_file + + +# func_to_tool_file ARG LAZY +# converts the file name ARG from $build format to toolchain format. Return +# result in func_to_tool_file_result. If the conversion in use is listed +# in (the comma separated) LAZY, no conversion takes place. +func_to_tool_file () +{ + $debug_cmd + + case ,$2, in + *,"$to_tool_file_cmd",*) + func_to_tool_file_result=$1 + ;; + *) + $to_tool_file_cmd "$1" + func_to_tool_file_result=$func_to_host_file_result + ;; + esac +} +# end func_to_tool_file + + +# func_convert_file_noop ARG +# Copy ARG to func_to_host_file_result. +func_convert_file_noop () +{ + func_to_host_file_result=$1 +} +# end func_convert_file_noop + + +# func_convert_file_msys_to_w32 ARG +# Convert file name ARG from (mingw) MSYS to (mingw) w32 format; automatic +# conversion to w32 is not available inside the cwrapper. Returns result in +# func_to_host_file_result. +func_convert_file_msys_to_w32 () +{ + $debug_cmd + + func_to_host_file_result=$1 + if test -n "$1"; then + func_convert_core_msys_to_w32 "$1" + func_to_host_file_result=$func_convert_core_msys_to_w32_result + fi + func_convert_file_check "$1" "$func_to_host_file_result" +} +# end func_convert_file_msys_to_w32 + + +# func_convert_file_cygwin_to_w32 ARG +# Convert file name ARG from Cygwin to w32 format. Returns result in +# func_to_host_file_result. +func_convert_file_cygwin_to_w32 () +{ + $debug_cmd + + func_to_host_file_result=$1 + if test -n "$1"; then + # because $build is cygwin, we call "the" cygpath in $PATH; no need to use + # LT_CYGPATH in this case. + func_to_host_file_result=`cygpath -m "$1"` + fi + func_convert_file_check "$1" "$func_to_host_file_result" +} +# end func_convert_file_cygwin_to_w32 + + +# func_convert_file_nix_to_w32 ARG +# Convert file name ARG from *nix to w32 format. Requires a wine environment +# and a working winepath. Returns result in func_to_host_file_result. +func_convert_file_nix_to_w32 () +{ + $debug_cmd + + func_to_host_file_result=$1 + if test -n "$1"; then + func_convert_core_file_wine_to_w32 "$1" + func_to_host_file_result=$func_convert_core_file_wine_to_w32_result + fi + func_convert_file_check "$1" "$func_to_host_file_result" +} +# end func_convert_file_nix_to_w32 + + +# func_convert_file_msys_to_cygwin ARG +# Convert file name ARG from MSYS to Cygwin format. Requires LT_CYGPATH set. +# Returns result in func_to_host_file_result. +func_convert_file_msys_to_cygwin () +{ + $debug_cmd + + func_to_host_file_result=$1 + if test -n "$1"; then + func_convert_core_msys_to_w32 "$1" + func_cygpath -u "$func_convert_core_msys_to_w32_result" + func_to_host_file_result=$func_cygpath_result + fi + func_convert_file_check "$1" "$func_to_host_file_result" +} +# end func_convert_file_msys_to_cygwin + + +# func_convert_file_nix_to_cygwin ARG +# Convert file name ARG from *nix to Cygwin format. Requires Cygwin installed +# in a wine environment, working winepath, and LT_CYGPATH set. Returns result +# in func_to_host_file_result. +func_convert_file_nix_to_cygwin () +{ + $debug_cmd + + func_to_host_file_result=$1 + if test -n "$1"; then + # convert from *nix to w32, then use cygpath to convert from w32 to cygwin. + func_convert_core_file_wine_to_w32 "$1" + func_cygpath -u "$func_convert_core_file_wine_to_w32_result" + func_to_host_file_result=$func_cygpath_result + fi + func_convert_file_check "$1" "$func_to_host_file_result" +} +# end func_convert_file_nix_to_cygwin + + +############################################# +# $build to $host PATH CONVERSION FUNCTIONS # +############################################# +# invoked via '$to_host_path_cmd ARG' +# +# In each case, ARG is the path to be converted from $build to $host format. +# The result will be available in $func_to_host_path_result. +# +# Path separators are also converted from $build format to $host format. If +# ARG begins or ends with a path separator character, it is preserved (but +# converted to $host format) on output. +# +# All path conversion functions are named using the following convention: +# file name conversion function : func_convert_file_X_to_Y () +# path conversion function : func_convert_path_X_to_Y () +# where, for any given $build/$host combination the 'X_to_Y' value is the +# same. If conversion functions are added for new $build/$host combinations, +# the two new functions must follow this pattern, or func_init_to_host_path_cmd +# will break. + + +# func_init_to_host_path_cmd +# Ensures that function "pointer" variable $to_host_path_cmd is set to the +# appropriate value, based on the value of $to_host_file_cmd. +to_host_path_cmd= +func_init_to_host_path_cmd () +{ + $debug_cmd + + if test -z "$to_host_path_cmd"; then + func_stripname 'func_convert_file_' '' "$to_host_file_cmd" + to_host_path_cmd=func_convert_path_$func_stripname_result + fi +} + + +# func_to_host_path ARG +# Converts the path ARG from $build format to $host format. Return result +# in func_to_host_path_result. +func_to_host_path () +{ + $debug_cmd + + func_init_to_host_path_cmd + $to_host_path_cmd "$1" +} +# end func_to_host_path + + +# func_convert_path_noop ARG +# Copy ARG to func_to_host_path_result. +func_convert_path_noop () +{ + func_to_host_path_result=$1 +} +# end func_convert_path_noop + + +# func_convert_path_msys_to_w32 ARG +# Convert path ARG from (mingw) MSYS to (mingw) w32 format; automatic +# conversion to w32 is not available inside the cwrapper. Returns result in +# func_to_host_path_result. +func_convert_path_msys_to_w32 () +{ + $debug_cmd + + func_to_host_path_result=$1 + if test -n "$1"; then + # Remove leading and trailing path separator characters from ARG. MSYS + # behavior is inconsistent here; cygpath turns them into '.;' and ';.'; + # and winepath ignores them completely. + func_stripname : : "$1" + func_to_host_path_tmp1=$func_stripname_result + func_convert_core_msys_to_w32 "$func_to_host_path_tmp1" + func_to_host_path_result=$func_convert_core_msys_to_w32_result + func_convert_path_check : ";" \ + "$func_to_host_path_tmp1" "$func_to_host_path_result" + func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" + fi +} +# end func_convert_path_msys_to_w32 + + +# func_convert_path_cygwin_to_w32 ARG +# Convert path ARG from Cygwin to w32 format. Returns result in +# func_to_host_file_result. +func_convert_path_cygwin_to_w32 () +{ + $debug_cmd + + func_to_host_path_result=$1 + if test -n "$1"; then + # See func_convert_path_msys_to_w32: + func_stripname : : "$1" + func_to_host_path_tmp1=$func_stripname_result + func_to_host_path_result=`cygpath -m -p "$func_to_host_path_tmp1"` + func_convert_path_check : ";" \ + "$func_to_host_path_tmp1" "$func_to_host_path_result" + func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" + fi +} +# end func_convert_path_cygwin_to_w32 + + +# func_convert_path_nix_to_w32 ARG +# Convert path ARG from *nix to w32 format. Requires a wine environment and +# a working winepath. Returns result in func_to_host_file_result. +func_convert_path_nix_to_w32 () +{ + $debug_cmd + + func_to_host_path_result=$1 + if test -n "$1"; then + # See func_convert_path_msys_to_w32: + func_stripname : : "$1" + func_to_host_path_tmp1=$func_stripname_result + func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1" + func_to_host_path_result=$func_convert_core_path_wine_to_w32_result + func_convert_path_check : ";" \ + "$func_to_host_path_tmp1" "$func_to_host_path_result" + func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" + fi +} +# end func_convert_path_nix_to_w32 + + +# func_convert_path_msys_to_cygwin ARG +# Convert path ARG from MSYS to Cygwin format. Requires LT_CYGPATH set. +# Returns result in func_to_host_file_result. +func_convert_path_msys_to_cygwin () +{ + $debug_cmd + + func_to_host_path_result=$1 + if test -n "$1"; then + # See func_convert_path_msys_to_w32: + func_stripname : : "$1" + func_to_host_path_tmp1=$func_stripname_result + func_convert_core_msys_to_w32 "$func_to_host_path_tmp1" + func_cygpath -u -p "$func_convert_core_msys_to_w32_result" + func_to_host_path_result=$func_cygpath_result + func_convert_path_check : : \ + "$func_to_host_path_tmp1" "$func_to_host_path_result" + func_convert_path_front_back_pathsep ":*" "*:" : "$1" + fi +} +# end func_convert_path_msys_to_cygwin + + +# func_convert_path_nix_to_cygwin ARG +# Convert path ARG from *nix to Cygwin format. Requires Cygwin installed in a +# a wine environment, working winepath, and LT_CYGPATH set. Returns result in +# func_to_host_file_result. +func_convert_path_nix_to_cygwin () +{ + $debug_cmd + + func_to_host_path_result=$1 + if test -n "$1"; then + # Remove leading and trailing path separator characters from + # ARG. msys behavior is inconsistent here, cygpath turns them + # into '.;' and ';.', and winepath ignores them completely. + func_stripname : : "$1" + func_to_host_path_tmp1=$func_stripname_result + func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1" + func_cygpath -u -p "$func_convert_core_path_wine_to_w32_result" + func_to_host_path_result=$func_cygpath_result + func_convert_path_check : : \ + "$func_to_host_path_tmp1" "$func_to_host_path_result" + func_convert_path_front_back_pathsep ":*" "*:" : "$1" + fi +} +# end func_convert_path_nix_to_cygwin + + +# func_dll_def_p FILE +# True iff FILE is a Windows DLL '.def' file. +# Keep in sync with _LT_DLL_DEF_P in libtool.m4 +func_dll_def_p () +{ + $debug_cmd + + func_dll_def_p_tmp=`$SED -n \ + -e 's/^[ ]*//' \ + -e '/^\(;.*\)*$/d' \ + -e 's/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p' \ + -e q \ + "$1"` + test DEF = "$func_dll_def_p_tmp" +} + + +# func_mode_compile arg... +func_mode_compile () +{ + $debug_cmd + + # Get the compilation command and the source file. + base_compile= + srcfile=$nonopt # always keep a non-empty value in "srcfile" + suppress_opt=yes + suppress_output= + arg_mode=normal + libobj= + later= + pie_flag= + + for arg + do + case $arg_mode in + arg ) + # do not "continue". Instead, add this to base_compile + lastarg=$arg + arg_mode=normal + ;; + + target ) + libobj=$arg + arg_mode=normal + continue + ;; + + normal ) + # Accept any command-line options. + case $arg in + -o) + test -n "$libobj" && \ + func_fatal_error "you cannot specify '-o' more than once" + arg_mode=target + continue + ;; + + -pie | -fpie | -fPIE) + func_append pie_flag " $arg" + continue + ;; + + -shared | -static | -prefer-pic | -prefer-non-pic) + func_append later " $arg" + continue + ;; + + -no-suppress) + suppress_opt=no + continue + ;; + + -Xcompiler) + arg_mode=arg # the next one goes into the "base_compile" arg list + continue # The current "srcfile" will either be retained or + ;; # replaced later. I would guess that would be a bug. + + -Wc,*) + func_stripname '-Wc,' '' "$arg" + args=$func_stripname_result + lastarg= + save_ifs=$IFS; IFS=, + for arg in $args; do + IFS=$save_ifs + func_append_quoted lastarg "$arg" + done + IFS=$save_ifs + func_stripname ' ' '' "$lastarg" + lastarg=$func_stripname_result + + # Add the arguments to base_compile. + func_append base_compile " $lastarg" + continue + ;; + + *) + # Accept the current argument as the source file. + # The previous "srcfile" becomes the current argument. + # + lastarg=$srcfile + srcfile=$arg + ;; + esac # case $arg + ;; + esac # case $arg_mode + + # Aesthetically quote the previous argument. + func_append_quoted base_compile "$lastarg" + done # for arg + + case $arg_mode in + arg) + func_fatal_error "you must specify an argument for -Xcompile" + ;; + target) + func_fatal_error "you must specify a target with '-o'" + ;; + *) + # Get the name of the library object. + test -z "$libobj" && { + func_basename "$srcfile" + libobj=$func_basename_result + } + ;; + esac + + # Recognize several different file suffixes. + # If the user specifies -o file.o, it is replaced with file.lo + case $libobj in + *.[cCFSifmso] | \ + *.ada | *.adb | *.ads | *.asm | \ + *.c++ | *.cc | *.ii | *.class | *.cpp | *.cxx | \ + *.[fF][09]? | *.for | *.java | *.go | *.obj | *.sx | *.cu | *.cup) + func_xform "$libobj" + libobj=$func_xform_result + ;; + esac + + case $libobj in + *.lo) func_lo2o "$libobj"; obj=$func_lo2o_result ;; + *) + func_fatal_error "cannot determine name of library object from '$libobj'" + ;; + esac + + func_infer_tag $base_compile + + for arg in $later; do + case $arg in + -shared) + test yes = "$build_libtool_libs" \ + || func_fatal_configuration "cannot build a shared library" + build_old_libs=no + continue + ;; + + -static) + build_libtool_libs=no + build_old_libs=yes + continue + ;; + + -prefer-pic) + pic_mode=yes + continue + ;; + + -prefer-non-pic) + pic_mode=no + continue + ;; + esac + done + + func_quote_for_eval "$libobj" + test "X$libobj" != "X$func_quote_for_eval_result" \ + && $ECHO "X$libobj" | $GREP '[]~#^*{};<>?"'"'"' &()|`$[]' \ + && func_warning "libobj name '$libobj' may not contain shell special characters." + func_dirname_and_basename "$obj" "/" "" + objname=$func_basename_result + xdir=$func_dirname_result + lobj=$xdir$objdir/$objname + + test -z "$base_compile" && \ + func_fatal_help "you must specify a compilation command" + + # Delete any leftover library objects. + if test yes = "$build_old_libs"; then + removelist="$obj $lobj $libobj ${libobj}T" + else + removelist="$lobj $libobj ${libobj}T" + fi + + # On Cygwin there's no "real" PIC flag so we must build both object types + case $host_os in + cygwin* | mingw* | pw32* | os2* | cegcc*) + pic_mode=default + ;; + esac + if test no = "$pic_mode" && test pass_all != "$deplibs_check_method"; then + # non-PIC code in shared libraries is not supported + pic_mode=default + fi + + # Calculate the filename of the output object if compiler does + # not support -o with -c + if test no = "$compiler_c_o"; then + output_obj=`$ECHO "$srcfile" | $SED 's%^.*/%%; s%\.[^.]*$%%'`.$objext + lockfile=$output_obj.lock + else + output_obj= + need_locks=no + lockfile= + fi + + # Lock this critical section if it is needed + # We use this script file to make the link, it avoids creating a new file + if test yes = "$need_locks"; then + until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do + func_echo "Waiting for $lockfile to be removed" + sleep 2 + done + elif test warn = "$need_locks"; then + if test -f "$lockfile"; then + $ECHO "\ +*** ERROR, $lockfile exists and contains: +`cat $lockfile 2>/dev/null` + +This indicates that another process is trying to use the same +temporary object file, and libtool could not work around it because +your compiler does not support '-c' and '-o' together. If you +repeat this compilation, it may succeed, by chance, but you had better +avoid parallel builds (make -j) in this platform, or get a better +compiler." + + $opt_dry_run || $RM $removelist + exit $EXIT_FAILURE + fi + func_append removelist " $output_obj" + $ECHO "$srcfile" > "$lockfile" + fi + + $opt_dry_run || $RM $removelist + func_append removelist " $lockfile" + trap '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' 1 2 15 + + func_to_tool_file "$srcfile" func_convert_file_msys_to_w32 + srcfile=$func_to_tool_file_result + func_quote_for_eval "$srcfile" + qsrcfile=$func_quote_for_eval_result + + # Only build a PIC object if we are building libtool libraries. + if test yes = "$build_libtool_libs"; then + # Without this assignment, base_compile gets emptied. + fbsd_hideous_sh_bug=$base_compile + + if test no != "$pic_mode"; then + command="$base_compile $qsrcfile $pic_flag" + else + # Don't build PIC code + command="$base_compile $qsrcfile" + fi + + func_mkdir_p "$xdir$objdir" + + if test -z "$output_obj"; then + # Place PIC objects in $objdir + func_append command " -o $lobj" + fi + + func_show_eval_locale "$command" \ + 'test -n "$output_obj" && $RM $removelist; exit $EXIT_FAILURE' + + if test warn = "$need_locks" && + test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then + $ECHO "\ +*** ERROR, $lockfile contains: +`cat $lockfile 2>/dev/null` + +but it should contain: +$srcfile + +This indicates that another process is trying to use the same +temporary object file, and libtool could not work around it because +your compiler does not support '-c' and '-o' together. If you +repeat this compilation, it may succeed, by chance, but you had better +avoid parallel builds (make -j) in this platform, or get a better +compiler." + + $opt_dry_run || $RM $removelist + exit $EXIT_FAILURE + fi + + # Just move the object if needed, then go on to compile the next one + if test -n "$output_obj" && test "X$output_obj" != "X$lobj"; then + func_show_eval '$MV "$output_obj" "$lobj"' \ + 'error=$?; $opt_dry_run || $RM $removelist; exit $error' + fi + + # Allow error messages only from the first compilation. + if test yes = "$suppress_opt"; then + suppress_output=' >/dev/null 2>&1' + fi + fi + + # Only build a position-dependent object if we build old libraries. + if test yes = "$build_old_libs"; then + if test yes != "$pic_mode"; then + # Don't build PIC code + command="$base_compile $qsrcfile$pie_flag" + else + command="$base_compile $qsrcfile $pic_flag" + fi + if test yes = "$compiler_c_o"; then + func_append command " -o $obj" + fi + + # Suppress compiler output if we already did a PIC compilation. + func_append command "$suppress_output" + func_show_eval_locale "$command" \ + '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' + + if test warn = "$need_locks" && + test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then + $ECHO "\ +*** ERROR, $lockfile contains: +`cat $lockfile 2>/dev/null` + +but it should contain: +$srcfile + +This indicates that another process is trying to use the same +temporary object file, and libtool could not work around it because +your compiler does not support '-c' and '-o' together. If you +repeat this compilation, it may succeed, by chance, but you had better +avoid parallel builds (make -j) in this platform, or get a better +compiler." + + $opt_dry_run || $RM $removelist + exit $EXIT_FAILURE + fi + + # Just move the object if needed + if test -n "$output_obj" && test "X$output_obj" != "X$obj"; then + func_show_eval '$MV "$output_obj" "$obj"' \ + 'error=$?; $opt_dry_run || $RM $removelist; exit $error' + fi + fi + + $opt_dry_run || { + func_write_libtool_object "$libobj" "$objdir/$objname" "$objname" + + # Unlock the critical section if it was locked + if test no != "$need_locks"; then + removelist=$lockfile + $RM "$lockfile" + fi + } + + exit $EXIT_SUCCESS +} + +$opt_help || { + test compile = "$opt_mode" && func_mode_compile ${1+"$@"} +} + +func_mode_help () +{ + # We need to display help for each of the modes. + case $opt_mode in + "") + # Generic help is extracted from the usage comments + # at the start of this file. + func_help + ;; + + clean) + $ECHO \ +"Usage: $progname [OPTION]... --mode=clean RM [RM-OPTION]... FILE... + +Remove files from the build directory. + +RM is the name of the program to use to delete files associated with each FILE +(typically '/bin/rm'). RM-OPTIONS are options (such as '-f') to be passed +to RM. + +If FILE is a libtool library, object or program, all the files associated +with it are deleted. Otherwise, only FILE itself is deleted using RM." + ;; + + compile) + $ECHO \ +"Usage: $progname [OPTION]... --mode=compile COMPILE-COMMAND... SOURCEFILE + +Compile a source file into a libtool library object. + +This mode accepts the following additional options: + + -o OUTPUT-FILE set the output file name to OUTPUT-FILE + -no-suppress do not suppress compiler output for multiple passes + -prefer-pic try to build PIC objects only + -prefer-non-pic try to build non-PIC objects only + -shared do not build a '.o' file suitable for static linking + -static only build a '.o' file suitable for static linking + -Wc,FLAG pass FLAG directly to the compiler + +COMPILE-COMMAND is a command to be used in creating a 'standard' object file +from the given SOURCEFILE. + +The output file name is determined by removing the directory component from +SOURCEFILE, then substituting the C source code suffix '.c' with the +library object suffix, '.lo'." + ;; + + execute) + $ECHO \ +"Usage: $progname [OPTION]... --mode=execute COMMAND [ARGS]... + +Automatically set library path, then run a program. + +This mode accepts the following additional options: + + -dlopen FILE add the directory containing FILE to the library path + +This mode sets the library path environment variable according to '-dlopen' +flags. + +If any of the ARGS are libtool executable wrappers, then they are translated +into their corresponding uninstalled binary, and any of their required library +directories are added to the library path. + +Then, COMMAND is executed, with ARGS as arguments." + ;; + + finish) + $ECHO \ +"Usage: $progname [OPTION]... --mode=finish [LIBDIR]... + +Complete the installation of libtool libraries. + +Each LIBDIR is a directory that contains libtool libraries. + +The commands that this mode executes may require superuser privileges. Use +the '--dry-run' option if you just want to see what would be executed." + ;; + + install) + $ECHO \ +"Usage: $progname [OPTION]... --mode=install INSTALL-COMMAND... + +Install executables or libraries. + +INSTALL-COMMAND is the installation command. The first component should be +either the 'install' or 'cp' program. + +The following components of INSTALL-COMMAND are treated specially: + + -inst-prefix-dir PREFIX-DIR Use PREFIX-DIR as a staging area for installation + +The rest of the components are interpreted as arguments to that command (only +BSD-compatible install options are recognized)." + ;; + + link) + $ECHO \ +"Usage: $progname [OPTION]... --mode=link LINK-COMMAND... + +Link object files or libraries together to form another library, or to +create an executable program. + +LINK-COMMAND is a command using the C compiler that you would use to create +a program from several object files. + +The following components of LINK-COMMAND are treated specially: + + -all-static do not do any dynamic linking at all + -avoid-version do not add a version suffix if possible + -bindir BINDIR specify path to binaries directory (for systems where + libraries must be found in the PATH setting at runtime) + -dlopen FILE '-dlpreopen' FILE if it cannot be dlopened at runtime + -dlpreopen FILE link in FILE and add its symbols to lt_preloaded_symbols + -export-dynamic allow symbols from OUTPUT-FILE to be resolved with dlsym(3) + -export-symbols SYMFILE + try to export only the symbols listed in SYMFILE + -export-symbols-regex REGEX + try to export only the symbols matching REGEX + -LLIBDIR search LIBDIR for required installed libraries + -lNAME OUTPUT-FILE requires the installed library libNAME + -module build a library that can dlopened + -no-fast-install disable the fast-install mode + -no-install link a not-installable executable + -no-undefined declare that a library does not refer to external symbols + -o OUTPUT-FILE create OUTPUT-FILE from the specified objects + -objectlist FILE use a list of object files found in FILE to specify objects + -os2dllname NAME force a short DLL name on OS/2 (no effect on other OSes) + -precious-files-regex REGEX + don't remove output files matching REGEX + -release RELEASE specify package release information + -rpath LIBDIR the created library will eventually be installed in LIBDIR + -R[ ]LIBDIR add LIBDIR to the runtime path of programs and libraries + -shared only do dynamic linking of libtool libraries + -shrext SUFFIX override the standard shared library file extension + -static do not do any dynamic linking of uninstalled libtool libraries + -static-libtool-libs + do not do any dynamic linking of libtool libraries + -version-info CURRENT[:REVISION[:AGE]] + specify library version info [each variable defaults to 0] + -weak LIBNAME declare that the target provides the LIBNAME interface + -Wc,FLAG + -Xcompiler FLAG pass linker-specific FLAG directly to the compiler + -Wl,FLAG + -Xlinker FLAG pass linker-specific FLAG directly to the linker + -XCClinker FLAG pass link-specific FLAG to the compiler driver (CC) + +All other options (arguments beginning with '-') are ignored. + +Every other argument is treated as a filename. Files ending in '.la' are +treated as uninstalled libtool libraries, other files are standard or library +object files. + +If the OUTPUT-FILE ends in '.la', then a libtool library is created, +only library objects ('.lo' files) may be specified, and '-rpath' is +required, except when creating a convenience library. + +If OUTPUT-FILE ends in '.a' or '.lib', then a standard library is created +using 'ar' and 'ranlib', or on Windows using 'lib'. + +If OUTPUT-FILE ends in '.lo' or '.$objext', then a reloadable object file +is created, otherwise an executable program is created." + ;; + + uninstall) + $ECHO \ +"Usage: $progname [OPTION]... --mode=uninstall RM [RM-OPTION]... FILE... + +Remove libraries from an installation directory. + +RM is the name of the program to use to delete files associated with each FILE +(typically '/bin/rm'). RM-OPTIONS are options (such as '-f') to be passed +to RM. + +If FILE is a libtool library, all the files associated with it are deleted. +Otherwise, only FILE itself is deleted using RM." + ;; + + *) + func_fatal_help "invalid operation mode '$opt_mode'" + ;; + esac + + echo + $ECHO "Try '$progname --help' for more information about other modes." +} + +# Now that we've collected a possible --mode arg, show help if necessary +if $opt_help; then + if test : = "$opt_help"; then + func_mode_help + else + { + func_help noexit + for opt_mode in compile link execute install finish uninstall clean; do + func_mode_help + done + } | $SED -n '1p; 2,$s/^Usage:/ or: /p' + { + func_help noexit + for opt_mode in compile link execute install finish uninstall clean; do + echo + func_mode_help + done + } | + $SED '1d + /^When reporting/,/^Report/{ + H + d + } + $x + /information about other modes/d + /more detailed .*MODE/d + s/^Usage:.*--mode=\([^ ]*\) .*/Description of \1 mode:/' + fi + exit $? +fi + + +# func_mode_execute arg... +func_mode_execute () +{ + $debug_cmd + + # The first argument is the command name. + cmd=$nonopt + test -z "$cmd" && \ + func_fatal_help "you must specify a COMMAND" + + # Handle -dlopen flags immediately. + for file in $opt_dlopen; do + test -f "$file" \ + || func_fatal_help "'$file' is not a file" + + dir= + case $file in + *.la) + func_resolve_sysroot "$file" + file=$func_resolve_sysroot_result + + # Check to see that this really is a libtool archive. + func_lalib_unsafe_p "$file" \ + || func_fatal_help "'$lib' is not a valid libtool archive" + + # Read the libtool library. + dlname= + library_names= + func_source "$file" + + # Skip this library if it cannot be dlopened. + if test -z "$dlname"; then + # Warn if it was a shared library. + test -n "$library_names" && \ + func_warning "'$file' was not linked with '-export-dynamic'" + continue + fi + + func_dirname "$file" "" "." + dir=$func_dirname_result + + if test -f "$dir/$objdir/$dlname"; then + func_append dir "/$objdir" + else + if test ! -f "$dir/$dlname"; then + func_fatal_error "cannot find '$dlname' in '$dir' or '$dir/$objdir'" + fi + fi + ;; + + *.lo) + # Just add the directory containing the .lo file. + func_dirname "$file" "" "." + dir=$func_dirname_result + ;; + + *) + func_warning "'-dlopen' is ignored for non-libtool libraries and objects" + continue + ;; + esac + + # Get the absolute pathname. + absdir=`cd "$dir" && pwd` + test -n "$absdir" && dir=$absdir + + # Now add the directory to shlibpath_var. + if eval "test -z \"\$$shlibpath_var\""; then + eval "$shlibpath_var=\"\$dir\"" + else + eval "$shlibpath_var=\"\$dir:\$$shlibpath_var\"" + fi + done + + # This variable tells wrapper scripts just to set shlibpath_var + # rather than running their programs. + libtool_execute_magic=$magic + + # Check if any of the arguments is a wrapper script. + args= + for file + do + case $file in + -* | *.la | *.lo ) ;; + *) + # Do a test to see if this is really a libtool program. + if func_ltwrapper_script_p "$file"; then + func_source "$file" + # Transform arg to wrapped name. + file=$progdir/$program + elif func_ltwrapper_executable_p "$file"; then + func_ltwrapper_scriptname "$file" + func_source "$func_ltwrapper_scriptname_result" + # Transform arg to wrapped name. + file=$progdir/$program + fi + ;; + esac + # Quote arguments (to preserve shell metacharacters). + func_append_quoted args "$file" + done + + if $opt_dry_run; then + # Display what would be done. + if test -n "$shlibpath_var"; then + eval "\$ECHO \"\$shlibpath_var=\$$shlibpath_var\"" + echo "export $shlibpath_var" + fi + $ECHO "$cmd$args" + exit $EXIT_SUCCESS + else + if test -n "$shlibpath_var"; then + # Export the shlibpath_var. + eval "export $shlibpath_var" + fi + + # Restore saved environment variables + for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES + do + eval "if test \"\${save_$lt_var+set}\" = set; then + $lt_var=\$save_$lt_var; export $lt_var + else + $lt_unset $lt_var + fi" + done + + # Now prepare to actually exec the command. + exec_cmd=\$cmd$args + fi +} + +test execute = "$opt_mode" && func_mode_execute ${1+"$@"} + + +# func_mode_finish arg... +func_mode_finish () +{ + $debug_cmd + + libs= + libdirs= + admincmds= + + for opt in "$nonopt" ${1+"$@"} + do + if test -d "$opt"; then + func_append libdirs " $opt" + + elif test -f "$opt"; then + if func_lalib_unsafe_p "$opt"; then + func_append libs " $opt" + else + func_warning "'$opt' is not a valid libtool archive" + fi + + else + func_fatal_error "invalid argument '$opt'" + fi + done + + if test -n "$libs"; then + if test -n "$lt_sysroot"; then + sysroot_regex=`$ECHO "$lt_sysroot" | $SED "$sed_make_literal_regex"` + sysroot_cmd="s/\([ ']\)$sysroot_regex/\1/g;" + else + sysroot_cmd= + fi + + # Remove sysroot references + if $opt_dry_run; then + for lib in $libs; do + echo "removing references to $lt_sysroot and '=' prefixes from $lib" + done + else + tmpdir=`func_mktempdir` + for lib in $libs; do + $SED -e "$sysroot_cmd s/\([ ']-[LR]\)=/\1/g; s/\([ ']\)=/\1/g" $lib \ + > $tmpdir/tmp-la + mv -f $tmpdir/tmp-la $lib + done + ${RM}r "$tmpdir" + fi + fi + + if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then + for libdir in $libdirs; do + if test -n "$finish_cmds"; then + # Do each command in the finish commands. + func_execute_cmds "$finish_cmds" 'admincmds="$admincmds +'"$cmd"'"' + fi + if test -n "$finish_eval"; then + # Do the single finish_eval. + eval cmds=\"$finish_eval\" + $opt_dry_run || eval "$cmds" || func_append admincmds " + $cmds" + fi + done + fi + + # Exit here if they wanted silent mode. + $opt_quiet && exit $EXIT_SUCCESS + + if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then + echo "----------------------------------------------------------------------" + echo "Libraries have been installed in:" + for libdir in $libdirs; do + $ECHO " $libdir" + done + echo + echo "If you ever happen to want to link against installed libraries" + echo "in a given directory, LIBDIR, you must either use libtool, and" + echo "specify the full pathname of the library, or use the '-LLIBDIR'" + echo "flag during linking and do at least one of the following:" + if test -n "$shlibpath_var"; then + echo " - add LIBDIR to the '$shlibpath_var' environment variable" + echo " during execution" + fi + if test -n "$runpath_var"; then + echo " - add LIBDIR to the '$runpath_var' environment variable" + echo " during linking" + fi + if test -n "$hardcode_libdir_flag_spec"; then + libdir=LIBDIR + eval flag=\"$hardcode_libdir_flag_spec\" + + $ECHO " - use the '$flag' linker flag" + fi + if test -n "$admincmds"; then + $ECHO " - have your system administrator run these commands:$admincmds" + fi + if test -f /etc/ld.so.conf; then + echo " - have your system administrator add LIBDIR to '/etc/ld.so.conf'" + fi + echo + + echo "See any operating system documentation about shared libraries for" + case $host in + solaris2.[6789]|solaris2.1[0-9]) + echo "more information, such as the ld(1), crle(1) and ld.so(8) manual" + echo "pages." + ;; + *) + echo "more information, such as the ld(1) and ld.so(8) manual pages." + ;; + esac + echo "----------------------------------------------------------------------" + fi + exit $EXIT_SUCCESS +} + +test finish = "$opt_mode" && func_mode_finish ${1+"$@"} + + +# func_mode_install arg... +func_mode_install () +{ + $debug_cmd + + # There may be an optional sh(1) argument at the beginning of + # install_prog (especially on Windows NT). + if test "$SHELL" = "$nonopt" || test /bin/sh = "$nonopt" || + # Allow the use of GNU shtool's install command. + case $nonopt in *shtool*) :;; *) false;; esac + then + # Aesthetically quote it. + func_quote_for_eval "$nonopt" + install_prog="$func_quote_for_eval_result " + arg=$1 + shift + else + install_prog= + arg=$nonopt + fi + + # The real first argument should be the name of the installation program. + # Aesthetically quote it. + func_quote_for_eval "$arg" + func_append install_prog "$func_quote_for_eval_result" + install_shared_prog=$install_prog + case " $install_prog " in + *[\\\ /]cp\ *) install_cp=: ;; + *) install_cp=false ;; + esac + + # We need to accept at least all the BSD install flags. + dest= + files= + opts= + prev= + install_type= + isdir=false + stripme= + no_mode=: + for arg + do + arg2= + if test -n "$dest"; then + func_append files " $dest" + dest=$arg + continue + fi + + case $arg in + -d) isdir=: ;; + -f) + if $install_cp; then :; else + prev=$arg + fi + ;; + -g | -m | -o) + prev=$arg + ;; + -s) + stripme=" -s" + continue + ;; + -*) + ;; + *) + # If the previous option needed an argument, then skip it. + if test -n "$prev"; then + if test X-m = "X$prev" && test -n "$install_override_mode"; then + arg2=$install_override_mode + no_mode=false + fi + prev= + else + dest=$arg + continue + fi + ;; + esac + + # Aesthetically quote the argument. + func_quote_for_eval "$arg" + func_append install_prog " $func_quote_for_eval_result" + if test -n "$arg2"; then + func_quote_for_eval "$arg2" + fi + func_append install_shared_prog " $func_quote_for_eval_result" + done + + test -z "$install_prog" && \ + func_fatal_help "you must specify an install program" + + test -n "$prev" && \ + func_fatal_help "the '$prev' option requires an argument" + + if test -n "$install_override_mode" && $no_mode; then + if $install_cp; then :; else + func_quote_for_eval "$install_override_mode" + func_append install_shared_prog " -m $func_quote_for_eval_result" + fi + fi + + if test -z "$files"; then + if test -z "$dest"; then + func_fatal_help "no file or destination specified" + else + func_fatal_help "you must specify a destination" + fi + fi + + # Strip any trailing slash from the destination. + func_stripname '' '/' "$dest" + dest=$func_stripname_result + + # Check to see that the destination is a directory. + test -d "$dest" && isdir=: + if $isdir; then + destdir=$dest + destname= + else + func_dirname_and_basename "$dest" "" "." + destdir=$func_dirname_result + destname=$func_basename_result + + # Not a directory, so check to see that there is only one file specified. + set dummy $files; shift + test "$#" -gt 1 && \ + func_fatal_help "'$dest' is not a directory" + fi + case $destdir in + [\\/]* | [A-Za-z]:[\\/]*) ;; + *) + for file in $files; do + case $file in + *.lo) ;; + *) + func_fatal_help "'$destdir' must be an absolute directory name" + ;; + esac + done + ;; + esac + + # This variable tells wrapper scripts just to set variables rather + # than running their programs. + libtool_install_magic=$magic + + staticlibs= + future_libdirs= + current_libdirs= + for file in $files; do + + # Do each installation. + case $file in + *.$libext) + # Do the static libraries later. + func_append staticlibs " $file" + ;; + + *.la) + func_resolve_sysroot "$file" + file=$func_resolve_sysroot_result + + # Check to see that this really is a libtool archive. + func_lalib_unsafe_p "$file" \ + || func_fatal_help "'$file' is not a valid libtool archive" + + library_names= + old_library= + relink_command= + func_source "$file" + + # Add the libdir to current_libdirs if it is the destination. + if test "X$destdir" = "X$libdir"; then + case "$current_libdirs " in + *" $libdir "*) ;; + *) func_append current_libdirs " $libdir" ;; + esac + else + # Note the libdir as a future libdir. + case "$future_libdirs " in + *" $libdir "*) ;; + *) func_append future_libdirs " $libdir" ;; + esac + fi + + func_dirname "$file" "/" "" + dir=$func_dirname_result + func_append dir "$objdir" + + if test -n "$relink_command"; then + # Determine the prefix the user has applied to our future dir. + inst_prefix_dir=`$ECHO "$destdir" | $SED -e "s%$libdir\$%%"` + + # Don't allow the user to place us outside of our expected + # location b/c this prevents finding dependent libraries that + # are installed to the same prefix. + # At present, this check doesn't affect windows .dll's that + # are installed into $libdir/../bin (currently, that works fine) + # but it's something to keep an eye on. + test "$inst_prefix_dir" = "$destdir" && \ + func_fatal_error "error: cannot install '$file' to a directory not ending in $libdir" + + if test -n "$inst_prefix_dir"; then + # Stick the inst_prefix_dir data into the link command. + relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%-inst-prefix-dir $inst_prefix_dir%"` + else + relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%%"` + fi + + func_warning "relinking '$file'" + func_show_eval "$relink_command" \ + 'func_fatal_error "error: relink '\''$file'\'' with the above command before installing it"' + fi + + # See the names of the shared library. + set dummy $library_names; shift + if test -n "$1"; then + realname=$1 + shift + + srcname=$realname + test -n "$relink_command" && srcname=${realname}T + + # Install the shared library and build the symlinks. + func_show_eval "$install_shared_prog $dir/$srcname $destdir/$realname" \ + 'exit $?' + tstripme=$stripme + case $host_os in + cygwin* | mingw* | pw32* | cegcc*) + case $realname in + *.dll.a) + tstripme= + ;; + esac + ;; + os2*) + case $realname in + *_dll.a) + tstripme= + ;; + esac + ;; + esac + if test -n "$tstripme" && test -n "$striplib"; then + func_show_eval "$striplib $destdir/$realname" 'exit $?' + fi + + if test "$#" -gt 0; then + # Delete the old symlinks, and create new ones. + # Try 'ln -sf' first, because the 'ln' binary might depend on + # the symlink we replace! Solaris /bin/ln does not understand -f, + # so we also need to try rm && ln -s. + for linkname + do + test "$linkname" != "$realname" \ + && func_show_eval "(cd $destdir && { $LN_S -f $realname $linkname || { $RM $linkname && $LN_S $realname $linkname; }; })" + done + fi + + # Do each command in the postinstall commands. + lib=$destdir/$realname + func_execute_cmds "$postinstall_cmds" 'exit $?' + fi + + # Install the pseudo-library for information purposes. + func_basename "$file" + name=$func_basename_result + instname=$dir/${name}i + func_show_eval "$install_prog $instname $destdir/$name" 'exit $?' + + # Maybe install the static library, too. + test -n "$old_library" && func_append staticlibs " $dir/$old_library" + ;; + + *.lo) + # Install (i.e. copy) a libtool object. + + # Figure out destination file name, if it wasn't already specified. + if test -n "$destname"; then + destfile=$destdir/$destname + else + func_basename "$file" + destfile=$func_basename_result + destfile=$destdir/$destfile + fi + + # Deduce the name of the destination old-style object file. + case $destfile in + *.lo) + func_lo2o "$destfile" + staticdest=$func_lo2o_result + ;; + *.$objext) + staticdest=$destfile + destfile= + ;; + *) + func_fatal_help "cannot copy a libtool object to '$destfile'" + ;; + esac + + # Install the libtool object if requested. + test -n "$destfile" && \ + func_show_eval "$install_prog $file $destfile" 'exit $?' + + # Install the old object if enabled. + if test yes = "$build_old_libs"; then + # Deduce the name of the old-style object file. + func_lo2o "$file" + staticobj=$func_lo2o_result + func_show_eval "$install_prog \$staticobj \$staticdest" 'exit $?' + fi + exit $EXIT_SUCCESS + ;; + + *) + # Figure out destination file name, if it wasn't already specified. + if test -n "$destname"; then + destfile=$destdir/$destname + else + func_basename "$file" + destfile=$func_basename_result + destfile=$destdir/$destfile + fi + + # If the file is missing, and there is a .exe on the end, strip it + # because it is most likely a libtool script we actually want to + # install + stripped_ext= + case $file in + *.exe) + if test ! -f "$file"; then + func_stripname '' '.exe' "$file" + file=$func_stripname_result + stripped_ext=.exe + fi + ;; + esac + + # Do a test to see if this is really a libtool program. + case $host in + *cygwin* | *mingw*) + if func_ltwrapper_executable_p "$file"; then + func_ltwrapper_scriptname "$file" + wrapper=$func_ltwrapper_scriptname_result + else + func_stripname '' '.exe' "$file" + wrapper=$func_stripname_result + fi + ;; + *) + wrapper=$file + ;; + esac + if func_ltwrapper_script_p "$wrapper"; then + notinst_deplibs= + relink_command= + + func_source "$wrapper" + + # Check the variables that should have been set. + test -z "$generated_by_libtool_version" && \ + func_fatal_error "invalid libtool wrapper script '$wrapper'" + + finalize=: + for lib in $notinst_deplibs; do + # Check to see that each library is installed. + libdir= + if test -f "$lib"; then + func_source "$lib" + fi + libfile=$libdir/`$ECHO "$lib" | $SED 's%^.*/%%g'` + if test -n "$libdir" && test ! -f "$libfile"; then + func_warning "'$lib' has not been installed in '$libdir'" + finalize=false + fi + done + + relink_command= + func_source "$wrapper" + + outputname= + if test no = "$fast_install" && test -n "$relink_command"; then + $opt_dry_run || { + if $finalize; then + tmpdir=`func_mktempdir` + func_basename "$file$stripped_ext" + file=$func_basename_result + outputname=$tmpdir/$file + # Replace the output file specification. + relink_command=`$ECHO "$relink_command" | $SED 's%@OUTPUT@%'"$outputname"'%g'` + + $opt_quiet || { + func_quote_for_expand "$relink_command" + eval "func_echo $func_quote_for_expand_result" + } + if eval "$relink_command"; then : + else + func_error "error: relink '$file' with the above command before installing it" + $opt_dry_run || ${RM}r "$tmpdir" + continue + fi + file=$outputname + else + func_warning "cannot relink '$file'" + fi + } + else + # Install the binary that we compiled earlier. + file=`$ECHO "$file$stripped_ext" | $SED "s%\([^/]*\)$%$objdir/\1%"` + fi + fi + + # remove .exe since cygwin /usr/bin/install will append another + # one anyway + case $install_prog,$host in + */usr/bin/install*,*cygwin*) + case $file:$destfile in + *.exe:*.exe) + # this is ok + ;; + *.exe:*) + destfile=$destfile.exe + ;; + *:*.exe) + func_stripname '' '.exe' "$destfile" + destfile=$func_stripname_result + ;; + esac + ;; + esac + func_show_eval "$install_prog\$stripme \$file \$destfile" 'exit $?' + $opt_dry_run || if test -n "$outputname"; then + ${RM}r "$tmpdir" + fi + ;; + esac + done + + for file in $staticlibs; do + func_basename "$file" + name=$func_basename_result + + # Set up the ranlib parameters. + oldlib=$destdir/$name + func_to_tool_file "$oldlib" func_convert_file_msys_to_w32 + tool_oldlib=$func_to_tool_file_result + + func_show_eval "$install_prog \$file \$oldlib" 'exit $?' + + if test -n "$stripme" && test -n "$old_striplib"; then + func_show_eval "$old_striplib $tool_oldlib" 'exit $?' + fi + + # Do each command in the postinstall commands. + func_execute_cmds "$old_postinstall_cmds" 'exit $?' + done + + test -n "$future_libdirs" && \ + func_warning "remember to run '$progname --finish$future_libdirs'" + + if test -n "$current_libdirs"; then + # Maybe just do a dry run. + $opt_dry_run && current_libdirs=" -n$current_libdirs" + exec_cmd='$SHELL "$progpath" $preserve_args --finish$current_libdirs' + else + exit $EXIT_SUCCESS + fi +} + +test install = "$opt_mode" && func_mode_install ${1+"$@"} + + +# func_generate_dlsyms outputname originator pic_p +# Extract symbols from dlprefiles and create ${outputname}S.o with +# a dlpreopen symbol table. +func_generate_dlsyms () +{ + $debug_cmd + + my_outputname=$1 + my_originator=$2 + my_pic_p=${3-false} + my_prefix=`$ECHO "$my_originator" | $SED 's%[^a-zA-Z0-9]%_%g'` + my_dlsyms= + + if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then + if test -n "$NM" && test -n "$global_symbol_pipe"; then + my_dlsyms=${my_outputname}S.c + else + func_error "not configured to extract global symbols from dlpreopened files" + fi + fi + + if test -n "$my_dlsyms"; then + case $my_dlsyms in + "") ;; + *.c) + # Discover the nlist of each of the dlfiles. + nlist=$output_objdir/$my_outputname.nm + + func_show_eval "$RM $nlist ${nlist}S ${nlist}T" + + # Parse the name list into a source file. + func_verbose "creating $output_objdir/$my_dlsyms" + + $opt_dry_run || $ECHO > "$output_objdir/$my_dlsyms" "\ +/* $my_dlsyms - symbol resolution table for '$my_outputname' dlsym emulation. */ +/* Generated by $PROGRAM (GNU $PACKAGE) $VERSION */ + +#ifdef __cplusplus +extern \"C\" { +#endif + +#if defined __GNUC__ && (((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4)) || (__GNUC__ > 4)) +#pragma GCC diagnostic ignored \"-Wstrict-prototypes\" +#endif + +/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ +#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE +/* DATA imports from DLLs on WIN32 can't be const, because runtime + relocations are performed -- see ld's documentation on pseudo-relocs. */ +# define LT_DLSYM_CONST +#elif defined __osf__ +/* This system does not cope well with relocations in const data. */ +# define LT_DLSYM_CONST +#else +# define LT_DLSYM_CONST const +#endif + +#define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0) + +/* External symbol declarations for the compiler. */\ +" + + if test yes = "$dlself"; then + func_verbose "generating symbol list for '$output'" + + $opt_dry_run || echo ': @PROGRAM@ ' > "$nlist" + + # Add our own program objects to the symbol list. + progfiles=`$ECHO "$objs$old_deplibs" | $SP2NL | $SED "$lo2o" | $NL2SP` + for progfile in $progfiles; do + func_to_tool_file "$progfile" func_convert_file_msys_to_w32 + func_verbose "extracting global C symbols from '$func_to_tool_file_result'" + $opt_dry_run || eval "$NM $func_to_tool_file_result | $global_symbol_pipe >> '$nlist'" + done + + if test -n "$exclude_expsyms"; then + $opt_dry_run || { + eval '$EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T' + eval '$MV "$nlist"T "$nlist"' + } + fi + + if test -n "$export_symbols_regex"; then + $opt_dry_run || { + eval '$EGREP -e "$export_symbols_regex" "$nlist" > "$nlist"T' + eval '$MV "$nlist"T "$nlist"' + } + fi + + # Prepare the list of exported symbols + if test -z "$export_symbols"; then + export_symbols=$output_objdir/$outputname.exp + $opt_dry_run || { + $RM $export_symbols + eval "$SED -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"' + case $host in + *cygwin* | *mingw* | *cegcc* ) + eval "echo EXPORTS "'> "$output_objdir/$outputname.def"' + eval 'cat "$export_symbols" >> "$output_objdir/$outputname.def"' + ;; + esac + } + else + $opt_dry_run || { + eval "$SED -e 's/\([].[*^$]\)/\\\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$outputname.exp"' + eval '$GREP -f "$output_objdir/$outputname.exp" < "$nlist" > "$nlist"T' + eval '$MV "$nlist"T "$nlist"' + case $host in + *cygwin* | *mingw* | *cegcc* ) + eval "echo EXPORTS "'> "$output_objdir/$outputname.def"' + eval 'cat "$nlist" >> "$output_objdir/$outputname.def"' + ;; + esac + } + fi + fi + + for dlprefile in $dlprefiles; do + func_verbose "extracting global C symbols from '$dlprefile'" + func_basename "$dlprefile" + name=$func_basename_result + case $host in + *cygwin* | *mingw* | *cegcc* ) + # if an import library, we need to obtain dlname + if func_win32_import_lib_p "$dlprefile"; then + func_tr_sh "$dlprefile" + eval "curr_lafile=\$libfile_$func_tr_sh_result" + dlprefile_dlbasename= + if test -n "$curr_lafile" && func_lalib_p "$curr_lafile"; then + # Use subshell, to avoid clobbering current variable values + dlprefile_dlname=`source "$curr_lafile" && echo "$dlname"` + if test -n "$dlprefile_dlname"; then + func_basename "$dlprefile_dlname" + dlprefile_dlbasename=$func_basename_result + else + # no lafile. user explicitly requested -dlpreopen . + $sharedlib_from_linklib_cmd "$dlprefile" + dlprefile_dlbasename=$sharedlib_from_linklib_result + fi + fi + $opt_dry_run || { + if test -n "$dlprefile_dlbasename"; then + eval '$ECHO ": $dlprefile_dlbasename" >> "$nlist"' + else + func_warning "Could not compute DLL name from $name" + eval '$ECHO ": $name " >> "$nlist"' + fi + func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 + eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe | + $SED -e '/I __imp/d' -e 's/I __nm_/D /;s/_nm__//' >> '$nlist'" + } + else # not an import lib + $opt_dry_run || { + eval '$ECHO ": $name " >> "$nlist"' + func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 + eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'" + } + fi + ;; + *) + $opt_dry_run || { + eval '$ECHO ": $name " >> "$nlist"' + func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 + eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'" + } + ;; + esac + done + + $opt_dry_run || { + # Make sure we have at least an empty file. + test -f "$nlist" || : > "$nlist" + + if test -n "$exclude_expsyms"; then + $EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T + $MV "$nlist"T "$nlist" + fi + + # Try sorting and uniquifying the output. + if $GREP -v "^: " < "$nlist" | + if sort -k 3 /dev/null 2>&1; then + sort -k 3 + else + sort +2 + fi | + uniq > "$nlist"S; then + : + else + $GREP -v "^: " < "$nlist" > "$nlist"S + fi + + if test -f "$nlist"S; then + eval "$global_symbol_to_cdecl"' < "$nlist"S >> "$output_objdir/$my_dlsyms"' + else + echo '/* NONE */' >> "$output_objdir/$my_dlsyms" + fi + + func_show_eval '$RM "${nlist}I"' + if test -n "$global_symbol_to_import"; then + eval "$global_symbol_to_import"' < "$nlist"S > "$nlist"I' + fi + + echo >> "$output_objdir/$my_dlsyms" "\ + +/* The mapping between symbol names and symbols. */ +typedef struct { + const char *name; + void *address; +} lt_dlsymlist; +extern LT_DLSYM_CONST lt_dlsymlist +lt_${my_prefix}_LTX_preloaded_symbols[];\ +" + + if test -s "$nlist"I; then + echo >> "$output_objdir/$my_dlsyms" "\ +static void lt_syminit(void) +{ + LT_DLSYM_CONST lt_dlsymlist *symbol = lt_${my_prefix}_LTX_preloaded_symbols; + for (; symbol->name; ++symbol) + {" + $SED 's/.*/ if (STREQ (symbol->name, \"&\")) symbol->address = (void *) \&&;/' < "$nlist"I >> "$output_objdir/$my_dlsyms" + echo >> "$output_objdir/$my_dlsyms" "\ + } +}" + fi + echo >> "$output_objdir/$my_dlsyms" "\ +LT_DLSYM_CONST lt_dlsymlist +lt_${my_prefix}_LTX_preloaded_symbols[] = +{ {\"$my_originator\", (void *) 0}," + + if test -s "$nlist"I; then + echo >> "$output_objdir/$my_dlsyms" "\ + {\"@INIT@\", (void *) <_syminit}," + fi + + case $need_lib_prefix in + no) + eval "$global_symbol_to_c_name_address" < "$nlist" >> "$output_objdir/$my_dlsyms" + ;; + *) + eval "$global_symbol_to_c_name_address_lib_prefix" < "$nlist" >> "$output_objdir/$my_dlsyms" + ;; + esac + echo >> "$output_objdir/$my_dlsyms" "\ + {0, (void *) 0} +}; + +/* This works around a problem in FreeBSD linker */ +#ifdef FREEBSD_WORKAROUND +static const void *lt_preloaded_setup() { + return lt_${my_prefix}_LTX_preloaded_symbols; +} +#endif + +#ifdef __cplusplus +} +#endif\ +" + } # !$opt_dry_run + + pic_flag_for_symtable= + case "$compile_command " in + *" -static "*) ;; + *) + case $host in + # compiling the symbol table file with pic_flag works around + # a FreeBSD bug that causes programs to crash when -lm is + # linked before any other PIC object. But we must not use + # pic_flag when linking with -static. The problem exists in + # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1. + *-*-freebsd2.*|*-*-freebsd3.0*|*-*-freebsdelf3.0*) + pic_flag_for_symtable=" $pic_flag -DFREEBSD_WORKAROUND" ;; + *-*-hpux*) + pic_flag_for_symtable=" $pic_flag" ;; + *) + $my_pic_p && pic_flag_for_symtable=" $pic_flag" + ;; + esac + ;; + esac + symtab_cflags= + for arg in $LTCFLAGS; do + case $arg in + -pie | -fpie | -fPIE) ;; + *) func_append symtab_cflags " $arg" ;; + esac + done + + # Now compile the dynamic symbol file. + func_show_eval '(cd $output_objdir && $LTCC$symtab_cflags -c$no_builtin_flag$pic_flag_for_symtable "$my_dlsyms")' 'exit $?' + + # Clean up the generated files. + func_show_eval '$RM "$output_objdir/$my_dlsyms" "$nlist" "${nlist}S" "${nlist}T" "${nlist}I"' + + # Transform the symbol file into the correct name. + symfileobj=$output_objdir/${my_outputname}S.$objext + case $host in + *cygwin* | *mingw* | *cegcc* ) + if test -f "$output_objdir/$my_outputname.def"; then + compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"` + finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"` + else + compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"` + finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"` + fi + ;; + *) + compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"` + finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"` + ;; + esac + ;; + *) + func_fatal_error "unknown suffix for '$my_dlsyms'" + ;; + esac + else + # We keep going just in case the user didn't refer to + # lt_preloaded_symbols. The linker will fail if global_symbol_pipe + # really was required. + + # Nullify the symbol file. + compile_command=`$ECHO "$compile_command" | $SED "s% @SYMFILE@%%"` + finalize_command=`$ECHO "$finalize_command" | $SED "s% @SYMFILE@%%"` + fi +} + +# func_cygming_gnu_implib_p ARG +# This predicate returns with zero status (TRUE) if +# ARG is a GNU/binutils-style import library. Returns +# with nonzero status (FALSE) otherwise. +func_cygming_gnu_implib_p () +{ + $debug_cmd + + func_to_tool_file "$1" func_convert_file_msys_to_w32 + func_cygming_gnu_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $EGREP ' (_head_[A-Za-z0-9_]+_[ad]l*|[A-Za-z0-9_]+_[ad]l*_iname)$'` + test -n "$func_cygming_gnu_implib_tmp" +} + +# func_cygming_ms_implib_p ARG +# This predicate returns with zero status (TRUE) if +# ARG is an MS-style import library. Returns +# with nonzero status (FALSE) otherwise. +func_cygming_ms_implib_p () +{ + $debug_cmd + + func_to_tool_file "$1" func_convert_file_msys_to_w32 + func_cygming_ms_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $GREP '_NULL_IMPORT_DESCRIPTOR'` + test -n "$func_cygming_ms_implib_tmp" +} + +# func_win32_libid arg +# return the library type of file 'arg' +# +# Need a lot of goo to handle *both* DLLs and import libs +# Has to be a shell function in order to 'eat' the argument +# that is supplied when $file_magic_command is called. +# Despite the name, also deal with 64 bit binaries. +func_win32_libid () +{ + $debug_cmd + + win32_libid_type=unknown + win32_fileres=`file -L $1 2>/dev/null` + case $win32_fileres in + *ar\ archive\ import\ library*) # definitely import + win32_libid_type="x86 archive import" + ;; + *ar\ archive*) # could be an import, or static + # Keep the egrep pattern in sync with the one in _LT_CHECK_MAGIC_METHOD. + if eval $OBJDUMP -f $1 | $SED -e '10q' 2>/dev/null | + $EGREP 'file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' >/dev/null; then + case $nm_interface in + "MS dumpbin") + if func_cygming_ms_implib_p "$1" || + func_cygming_gnu_implib_p "$1" + then + win32_nmres=import + else + win32_nmres= + fi + ;; + *) + func_to_tool_file "$1" func_convert_file_msys_to_w32 + win32_nmres=`eval $NM -f posix -A \"$func_to_tool_file_result\" | + $SED -n -e ' + 1,100{ + / I /{ + s|.*|import| + p + q + } + }'` + ;; + esac + case $win32_nmres in + import*) win32_libid_type="x86 archive import";; + *) win32_libid_type="x86 archive static";; + esac + fi + ;; + *DLL*) + win32_libid_type="x86 DLL" + ;; + *executable*) # but shell scripts are "executable" too... + case $win32_fileres in + *MS\ Windows\ PE\ Intel*) + win32_libid_type="x86 DLL" + ;; + esac + ;; + esac + $ECHO "$win32_libid_type" +} + +# func_cygming_dll_for_implib ARG +# +# Platform-specific function to extract the +# name of the DLL associated with the specified +# import library ARG. +# Invoked by eval'ing the libtool variable +# $sharedlib_from_linklib_cmd +# Result is available in the variable +# $sharedlib_from_linklib_result +func_cygming_dll_for_implib () +{ + $debug_cmd + + sharedlib_from_linklib_result=`$DLLTOOL --identify-strict --identify "$1"` +} + +# func_cygming_dll_for_implib_fallback_core SECTION_NAME LIBNAMEs +# +# The is the core of a fallback implementation of a +# platform-specific function to extract the name of the +# DLL associated with the specified import library LIBNAME. +# +# SECTION_NAME is either .idata$6 or .idata$7, depending +# on the platform and compiler that created the implib. +# +# Echos the name of the DLL associated with the +# specified import library. +func_cygming_dll_for_implib_fallback_core () +{ + $debug_cmd + + match_literal=`$ECHO "$1" | $SED "$sed_make_literal_regex"` + $OBJDUMP -s --section "$1" "$2" 2>/dev/null | + $SED '/^Contents of section '"$match_literal"':/{ + # Place marker at beginning of archive member dllname section + s/.*/====MARK====/ + p + d + } + # These lines can sometimes be longer than 43 characters, but + # are always uninteresting + /:[ ]*file format pe[i]\{,1\}-/d + /^In archive [^:]*:/d + # Ensure marker is printed + /^====MARK====/p + # Remove all lines with less than 43 characters + /^.\{43\}/!d + # From remaining lines, remove first 43 characters + s/^.\{43\}//' | + $SED -n ' + # Join marker and all lines until next marker into a single line + /^====MARK====/ b para + H + $ b para + b + :para + x + s/\n//g + # Remove the marker + s/^====MARK====// + # Remove trailing dots and whitespace + s/[\. \t]*$// + # Print + /./p' | + # we now have a list, one entry per line, of the stringified + # contents of the appropriate section of all members of the + # archive that possess that section. Heuristic: eliminate + # all those that have a first or second character that is + # a '.' (that is, objdump's representation of an unprintable + # character.) This should work for all archives with less than + # 0x302f exports -- but will fail for DLLs whose name actually + # begins with a literal '.' or a single character followed by + # a '.'. + # + # Of those that remain, print the first one. + $SED -e '/^\./d;/^.\./d;q' +} + +# func_cygming_dll_for_implib_fallback ARG +# Platform-specific function to extract the +# name of the DLL associated with the specified +# import library ARG. +# +# This fallback implementation is for use when $DLLTOOL +# does not support the --identify-strict option. +# Invoked by eval'ing the libtool variable +# $sharedlib_from_linklib_cmd +# Result is available in the variable +# $sharedlib_from_linklib_result +func_cygming_dll_for_implib_fallback () +{ + $debug_cmd + + if func_cygming_gnu_implib_p "$1"; then + # binutils import library + sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$7' "$1"` + elif func_cygming_ms_implib_p "$1"; then + # ms-generated import library + sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$6' "$1"` + else + # unknown + sharedlib_from_linklib_result= + fi +} + + +# func_extract_an_archive dir oldlib +func_extract_an_archive () +{ + $debug_cmd + + f_ex_an_ar_dir=$1; shift + f_ex_an_ar_oldlib=$1 + if test yes = "$lock_old_archive_extraction"; then + lockfile=$f_ex_an_ar_oldlib.lock + until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do + func_echo "Waiting for $lockfile to be removed" + sleep 2 + done + fi + func_show_eval "(cd \$f_ex_an_ar_dir && $AR x \"\$f_ex_an_ar_oldlib\")" \ + 'stat=$?; rm -f "$lockfile"; exit $stat' + if test yes = "$lock_old_archive_extraction"; then + $opt_dry_run || rm -f "$lockfile" + fi + if ($AR t "$f_ex_an_ar_oldlib" | sort | sort -uc >/dev/null 2>&1); then + : + else + func_fatal_error "object name conflicts in archive: $f_ex_an_ar_dir/$f_ex_an_ar_oldlib" + fi +} + + +# func_extract_archives gentop oldlib ... +func_extract_archives () +{ + $debug_cmd + + my_gentop=$1; shift + my_oldlibs=${1+"$@"} + my_oldobjs= + my_xlib= + my_xabs= + my_xdir= + + for my_xlib in $my_oldlibs; do + # Extract the objects. + case $my_xlib in + [\\/]* | [A-Za-z]:[\\/]*) my_xabs=$my_xlib ;; + *) my_xabs=`pwd`"/$my_xlib" ;; + esac + func_basename "$my_xlib" + my_xlib=$func_basename_result + my_xlib_u=$my_xlib + while :; do + case " $extracted_archives " in + *" $my_xlib_u "*) + func_arith $extracted_serial + 1 + extracted_serial=$func_arith_result + my_xlib_u=lt$extracted_serial-$my_xlib ;; + *) break ;; + esac + done + extracted_archives="$extracted_archives $my_xlib_u" + my_xdir=$my_gentop/$my_xlib_u + + func_mkdir_p "$my_xdir" + + case $host in + *-darwin*) + func_verbose "Extracting $my_xabs" + # Do not bother doing anything if just a dry run + $opt_dry_run || { + darwin_orig_dir=`pwd` + cd $my_xdir || exit $? + darwin_archive=$my_xabs + darwin_curdir=`pwd` + func_basename "$darwin_archive" + darwin_base_archive=$func_basename_result + darwin_arches=`$LIPO -info "$darwin_archive" 2>/dev/null | $GREP Architectures 2>/dev/null || true` + if test -n "$darwin_arches"; then + darwin_arches=`$ECHO "$darwin_arches" | $SED -e 's/.*are://'` + darwin_arch= + func_verbose "$darwin_base_archive has multiple architectures $darwin_arches" + for darwin_arch in $darwin_arches; do + func_mkdir_p "unfat-$$/$darwin_base_archive-$darwin_arch" + $LIPO -thin $darwin_arch -output "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive" "$darwin_archive" + cd "unfat-$$/$darwin_base_archive-$darwin_arch" + func_extract_an_archive "`pwd`" "$darwin_base_archive" + cd "$darwin_curdir" + $RM "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive" + done # $darwin_arches + ## Okay now we've a bunch of thin objects, gotta fatten them up :) + darwin_filelist=`find unfat-$$ -type f -name \*.o -print -o -name \*.lo -print | $SED -e "$sed_basename" | sort -u` + darwin_file= + darwin_files= + for darwin_file in $darwin_filelist; do + darwin_files=`find unfat-$$ -name $darwin_file -print | sort | $NL2SP` + $LIPO -create -output "$darwin_file" $darwin_files + done # $darwin_filelist + $RM -rf unfat-$$ + cd "$darwin_orig_dir" + else + cd $darwin_orig_dir + func_extract_an_archive "$my_xdir" "$my_xabs" + fi # $darwin_arches + } # !$opt_dry_run + ;; + *) + func_extract_an_archive "$my_xdir" "$my_xabs" + ;; + esac + my_oldobjs="$my_oldobjs "`find $my_xdir -name \*.$objext -print -o -name \*.lo -print | sort | $NL2SP` + done + + func_extract_archives_result=$my_oldobjs +} + + +# func_emit_wrapper [arg=no] +# +# Emit a libtool wrapper script on stdout. +# Don't directly open a file because we may want to +# incorporate the script contents within a cygwin/mingw +# wrapper executable. Must ONLY be called from within +# func_mode_link because it depends on a number of variables +# set therein. +# +# ARG is the value that the WRAPPER_SCRIPT_BELONGS_IN_OBJDIR +# variable will take. If 'yes', then the emitted script +# will assume that the directory where it is stored is +# the $objdir directory. This is a cygwin/mingw-specific +# behavior. +func_emit_wrapper () +{ + func_emit_wrapper_arg1=${1-no} + + $ECHO "\ +#! $SHELL + +# $output - temporary wrapper script for $objdir/$outputname +# Generated by $PROGRAM (GNU $PACKAGE) $VERSION +# +# The $output program cannot be directly executed until all the libtool +# libraries that it depends on are installed. +# +# This wrapper script should never be moved out of the build directory. +# If it is, it will not operate correctly. + +# Sed substitution that helps us do robust quoting. It backslashifies +# metacharacters that are still active within double-quoted strings. +sed_quote_subst='$sed_quote_subst' + +# Be Bourne compatible +if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then + emulate sh + NULLCMD=: + # Zsh 3.x and 4.x performs word splitting on \${1+\"\$@\"}, which + # is contrary to our usage. Disable this feature. + alias -g '\${1+\"\$@\"}'='\"\$@\"' + setopt NO_GLOB_SUBST +else + case \`(set -o) 2>/dev/null\` in *posix*) set -o posix;; esac +fi +BIN_SH=xpg4; export BIN_SH # for Tru64 +DUALCASE=1; export DUALCASE # for MKS sh + +# The HP-UX ksh and POSIX shell print the target directory to stdout +# if CDPATH is set. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + +relink_command=\"$relink_command\" + +# This environment variable determines our operation mode. +if test \"\$libtool_install_magic\" = \"$magic\"; then + # install mode needs the following variables: + generated_by_libtool_version='$macro_version' + notinst_deplibs='$notinst_deplibs' +else + # When we are sourced in execute mode, \$file and \$ECHO are already set. + if test \"\$libtool_execute_magic\" != \"$magic\"; then + file=\"\$0\"" + + qECHO=`$ECHO "$ECHO" | $SED "$sed_quote_subst"` + $ECHO "\ + +# A function that is used when there is no print builtin or printf. +func_fallback_echo () +{ + eval 'cat <<_LTECHO_EOF +\$1 +_LTECHO_EOF' +} + ECHO=\"$qECHO\" + fi + +# Very basic option parsing. These options are (a) specific to +# the libtool wrapper, (b) are identical between the wrapper +# /script/ and the wrapper /executable/ that is used only on +# windows platforms, and (c) all begin with the string "--lt-" +# (application programs are unlikely to have options that match +# this pattern). +# +# There are only two supported options: --lt-debug and +# --lt-dump-script. There is, deliberately, no --lt-help. +# +# The first argument to this parsing function should be the +# script's $0 value, followed by "$@". +lt_option_debug= +func_parse_lt_options () +{ + lt_script_arg0=\$0 + shift + for lt_opt + do + case \"\$lt_opt\" in + --lt-debug) lt_option_debug=1 ;; + --lt-dump-script) + lt_dump_D=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%/[^/]*$%%'\` + test \"X\$lt_dump_D\" = \"X\$lt_script_arg0\" && lt_dump_D=. + lt_dump_F=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%^.*/%%'\` + cat \"\$lt_dump_D/\$lt_dump_F\" + exit 0 + ;; + --lt-*) + \$ECHO \"Unrecognized --lt- option: '\$lt_opt'\" 1>&2 + exit 1 + ;; + esac + done + + # Print the debug banner immediately: + if test -n \"\$lt_option_debug\"; then + echo \"$outputname:$output:\$LINENO: libtool wrapper (GNU $PACKAGE) $VERSION\" 1>&2 + fi +} + +# Used when --lt-debug. Prints its arguments to stdout +# (redirection is the responsibility of the caller) +func_lt_dump_args () +{ + lt_dump_args_N=1; + for lt_arg + do + \$ECHO \"$outputname:$output:\$LINENO: newargv[\$lt_dump_args_N]: \$lt_arg\" + lt_dump_args_N=\`expr \$lt_dump_args_N + 1\` + done +} + +# Core function for launching the target application +func_exec_program_core () +{ +" + case $host in + # Backslashes separate directories on plain windows + *-*-mingw | *-*-os2* | *-cegcc*) + $ECHO "\ + if test -n \"\$lt_option_debug\"; then + \$ECHO \"$outputname:$output:\$LINENO: newargv[0]: \$progdir\\\\\$program\" 1>&2 + func_lt_dump_args \${1+\"\$@\"} 1>&2 + fi + exec \"\$progdir\\\\\$program\" \${1+\"\$@\"} +" + ;; + + *) + $ECHO "\ + if test -n \"\$lt_option_debug\"; then + \$ECHO \"$outputname:$output:\$LINENO: newargv[0]: \$progdir/\$program\" 1>&2 + func_lt_dump_args \${1+\"\$@\"} 1>&2 + fi + exec \"\$progdir/\$program\" \${1+\"\$@\"} +" + ;; + esac + $ECHO "\ + \$ECHO \"\$0: cannot exec \$program \$*\" 1>&2 + exit 1 +} + +# A function to encapsulate launching the target application +# Strips options in the --lt-* namespace from \$@ and +# launches target application with the remaining arguments. +func_exec_program () +{ + case \" \$* \" in + *\\ --lt-*) + for lt_wr_arg + do + case \$lt_wr_arg in + --lt-*) ;; + *) set x \"\$@\" \"\$lt_wr_arg\"; shift;; + esac + shift + done ;; + esac + func_exec_program_core \${1+\"\$@\"} +} + + # Parse options + func_parse_lt_options \"\$0\" \${1+\"\$@\"} + + # Find the directory that this script lives in. + thisdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*$%%'\` + test \"x\$thisdir\" = \"x\$file\" && thisdir=. + + # Follow symbolic links until we get to the real thisdir. + file=\`ls -ld \"\$file\" | $SED -n 's/.*-> //p'\` + while test -n \"\$file\"; do + destdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*\$%%'\` + + # If there was a directory component, then change thisdir. + if test \"x\$destdir\" != \"x\$file\"; then + case \"\$destdir\" in + [\\\\/]* | [A-Za-z]:[\\\\/]*) thisdir=\"\$destdir\" ;; + *) thisdir=\"\$thisdir/\$destdir\" ;; + esac + fi + + file=\`\$ECHO \"\$file\" | $SED 's%^.*/%%'\` + file=\`ls -ld \"\$thisdir/\$file\" | $SED -n 's/.*-> //p'\` + done + + # Usually 'no', except on cygwin/mingw when embedded into + # the cwrapper. + WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=$func_emit_wrapper_arg1 + if test \"\$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR\" = \"yes\"; then + # special case for '.' + if test \"\$thisdir\" = \".\"; then + thisdir=\`pwd\` + fi + # remove .libs from thisdir + case \"\$thisdir\" in + *[\\\\/]$objdir ) thisdir=\`\$ECHO \"\$thisdir\" | $SED 's%[\\\\/][^\\\\/]*$%%'\` ;; + $objdir ) thisdir=. ;; + esac + fi + + # Try to get the absolute directory name. + absdir=\`cd \"\$thisdir\" && pwd\` + test -n \"\$absdir\" && thisdir=\"\$absdir\" +" + + if test yes = "$fast_install"; then + $ECHO "\ + program=lt-'$outputname'$exeext + progdir=\"\$thisdir/$objdir\" + + if test ! -f \"\$progdir/\$program\" || + { file=\`ls -1dt \"\$progdir/\$program\" \"\$progdir/../\$program\" 2>/dev/null | $SED 1q\`; \\ + test \"X\$file\" != \"X\$progdir/\$program\"; }; then + + file=\"\$\$-\$program\" + + if test ! -d \"\$progdir\"; then + $MKDIR \"\$progdir\" + else + $RM \"\$progdir/\$file\" + fi" + + $ECHO "\ + + # relink executable if necessary + if test -n \"\$relink_command\"; then + if relink_command_output=\`eval \$relink_command 2>&1\`; then : + else + \$ECHO \"\$relink_command_output\" >&2 + $RM \"\$progdir/\$file\" + exit 1 + fi + fi + + $MV \"\$progdir/\$file\" \"\$progdir/\$program\" 2>/dev/null || + { $RM \"\$progdir/\$program\"; + $MV \"\$progdir/\$file\" \"\$progdir/\$program\"; } + $RM \"\$progdir/\$file\" + fi" + else + $ECHO "\ + program='$outputname' + progdir=\"\$thisdir/$objdir\" +" + fi + + $ECHO "\ + + if test -f \"\$progdir/\$program\"; then" + + # fixup the dll searchpath if we need to. + # + # Fix the DLL searchpath if we need to. Do this before prepending + # to shlibpath, because on Windows, both are PATH and uninstalled + # libraries must come first. + if test -n "$dllsearchpath"; then + $ECHO "\ + # Add the dll search path components to the executable PATH + PATH=$dllsearchpath:\$PATH +" + fi + + # Export our shlibpath_var if we have one. + if test yes = "$shlibpath_overrides_runpath" && test -n "$shlibpath_var" && test -n "$temp_rpath"; then + $ECHO "\ + # Add our own library path to $shlibpath_var + $shlibpath_var=\"$temp_rpath\$$shlibpath_var\" + + # Some systems cannot cope with colon-terminated $shlibpath_var + # The second colon is a workaround for a bug in BeOS R4 sed + $shlibpath_var=\`\$ECHO \"\$$shlibpath_var\" | $SED 's/::*\$//'\` + + export $shlibpath_var +" + fi + + $ECHO "\ + if test \"\$libtool_execute_magic\" != \"$magic\"; then + # Run the actual program with our arguments. + func_exec_program \${1+\"\$@\"} + fi + else + # The program doesn't exist. + \$ECHO \"\$0: error: '\$progdir/\$program' does not exist\" 1>&2 + \$ECHO \"This script is just a wrapper for \$program.\" 1>&2 + \$ECHO \"See the $PACKAGE documentation for more information.\" 1>&2 + exit 1 + fi +fi\ +" +} + + +# func_emit_cwrapperexe_src +# emit the source code for a wrapper executable on stdout +# Must ONLY be called from within func_mode_link because +# it depends on a number of variable set therein. +func_emit_cwrapperexe_src () +{ + cat < +#include +#ifdef _MSC_VER +# include +# include +# include +#else +# include +# include +# ifdef __CYGWIN__ +# include +# endif +#endif +#include +#include +#include +#include +#include +#include +#include +#include + +#define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0) + +/* declarations of non-ANSI functions */ +#if defined __MINGW32__ +# ifdef __STRICT_ANSI__ +int _putenv (const char *); +# endif +#elif defined __CYGWIN__ +# ifdef __STRICT_ANSI__ +char *realpath (const char *, char *); +int putenv (char *); +int setenv (const char *, const char *, int); +# endif +/* #elif defined other_platform || defined ... */ +#endif + +/* portability defines, excluding path handling macros */ +#if defined _MSC_VER +# define setmode _setmode +# define stat _stat +# define chmod _chmod +# define getcwd _getcwd +# define putenv _putenv +# define S_IXUSR _S_IEXEC +#elif defined __MINGW32__ +# define setmode _setmode +# define stat _stat +# define chmod _chmod +# define getcwd _getcwd +# define putenv _putenv +#elif defined __CYGWIN__ +# define HAVE_SETENV +# define FOPEN_WB "wb" +/* #elif defined other platforms ... */ +#endif + +#if defined PATH_MAX +# define LT_PATHMAX PATH_MAX +#elif defined MAXPATHLEN +# define LT_PATHMAX MAXPATHLEN +#else +# define LT_PATHMAX 1024 +#endif + +#ifndef S_IXOTH +# define S_IXOTH 0 +#endif +#ifndef S_IXGRP +# define S_IXGRP 0 +#endif + +/* path handling portability macros */ +#ifndef DIR_SEPARATOR +# define DIR_SEPARATOR '/' +# define PATH_SEPARATOR ':' +#endif + +#if defined _WIN32 || defined __MSDOS__ || defined __DJGPP__ || \ + defined __OS2__ +# define HAVE_DOS_BASED_FILE_SYSTEM +# define FOPEN_WB "wb" +# ifndef DIR_SEPARATOR_2 +# define DIR_SEPARATOR_2 '\\' +# endif +# ifndef PATH_SEPARATOR_2 +# define PATH_SEPARATOR_2 ';' +# endif +#endif + +#ifndef DIR_SEPARATOR_2 +# define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR) +#else /* DIR_SEPARATOR_2 */ +# define IS_DIR_SEPARATOR(ch) \ + (((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2)) +#endif /* DIR_SEPARATOR_2 */ + +#ifndef PATH_SEPARATOR_2 +# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR) +#else /* PATH_SEPARATOR_2 */ +# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR_2) +#endif /* PATH_SEPARATOR_2 */ + +#ifndef FOPEN_WB +# define FOPEN_WB "w" +#endif +#ifndef _O_BINARY +# define _O_BINARY 0 +#endif + +#define XMALLOC(type, num) ((type *) xmalloc ((num) * sizeof(type))) +#define XFREE(stale) do { \ + if (stale) { free (stale); stale = 0; } \ +} while (0) + +#if defined LT_DEBUGWRAPPER +static int lt_debug = 1; +#else +static int lt_debug = 0; +#endif + +const char *program_name = "libtool-wrapper"; /* in case xstrdup fails */ + +void *xmalloc (size_t num); +char *xstrdup (const char *string); +const char *base_name (const char *name); +char *find_executable (const char *wrapper); +char *chase_symlinks (const char *pathspec); +int make_executable (const char *path); +int check_executable (const char *path); +char *strendzap (char *str, const char *pat); +void lt_debugprintf (const char *file, int line, const char *fmt, ...); +void lt_fatal (const char *file, int line, const char *message, ...); +static const char *nonnull (const char *s); +static const char *nonempty (const char *s); +void lt_setenv (const char *name, const char *value); +char *lt_extend_str (const char *orig_value, const char *add, int to_end); +void lt_update_exe_path (const char *name, const char *value); +void lt_update_lib_path (const char *name, const char *value); +char **prepare_spawn (char **argv); +void lt_dump_script (FILE *f); +EOF + + cat <= 0) + && (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH))) + return 1; + else + return 0; +} + +int +make_executable (const char *path) +{ + int rval = 0; + struct stat st; + + lt_debugprintf (__FILE__, __LINE__, "(make_executable): %s\n", + nonempty (path)); + if ((!path) || (!*path)) + return 0; + + if (stat (path, &st) >= 0) + { + rval = chmod (path, st.st_mode | S_IXOTH | S_IXGRP | S_IXUSR); + } + return rval; +} + +/* Searches for the full path of the wrapper. Returns + newly allocated full path name if found, NULL otherwise + Does not chase symlinks, even on platforms that support them. +*/ +char * +find_executable (const char *wrapper) +{ + int has_slash = 0; + const char *p; + const char *p_next; + /* static buffer for getcwd */ + char tmp[LT_PATHMAX + 1]; + size_t tmp_len; + char *concat_name; + + lt_debugprintf (__FILE__, __LINE__, "(find_executable): %s\n", + nonempty (wrapper)); + + if ((wrapper == NULL) || (*wrapper == '\0')) + return NULL; + + /* Absolute path? */ +#if defined HAVE_DOS_BASED_FILE_SYSTEM + if (isalpha ((unsigned char) wrapper[0]) && wrapper[1] == ':') + { + concat_name = xstrdup (wrapper); + if (check_executable (concat_name)) + return concat_name; + XFREE (concat_name); + } + else + { +#endif + if (IS_DIR_SEPARATOR (wrapper[0])) + { + concat_name = xstrdup (wrapper); + if (check_executable (concat_name)) + return concat_name; + XFREE (concat_name); + } +#if defined HAVE_DOS_BASED_FILE_SYSTEM + } +#endif + + for (p = wrapper; *p; p++) + if (*p == '/') + { + has_slash = 1; + break; + } + if (!has_slash) + { + /* no slashes; search PATH */ + const char *path = getenv ("PATH"); + if (path != NULL) + { + for (p = path; *p; p = p_next) + { + const char *q; + size_t p_len; + for (q = p; *q; q++) + if (IS_PATH_SEPARATOR (*q)) + break; + p_len = (size_t) (q - p); + p_next = (*q == '\0' ? q : q + 1); + if (p_len == 0) + { + /* empty path: current directory */ + if (getcwd (tmp, LT_PATHMAX) == NULL) + lt_fatal (__FILE__, __LINE__, "getcwd failed: %s", + nonnull (strerror (errno))); + tmp_len = strlen (tmp); + concat_name = + XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1); + memcpy (concat_name, tmp, tmp_len); + concat_name[tmp_len] = '/'; + strcpy (concat_name + tmp_len + 1, wrapper); + } + else + { + concat_name = + XMALLOC (char, p_len + 1 + strlen (wrapper) + 1); + memcpy (concat_name, p, p_len); + concat_name[p_len] = '/'; + strcpy (concat_name + p_len + 1, wrapper); + } + if (check_executable (concat_name)) + return concat_name; + XFREE (concat_name); + } + } + /* not found in PATH; assume curdir */ + } + /* Relative path | not found in path: prepend cwd */ + if (getcwd (tmp, LT_PATHMAX) == NULL) + lt_fatal (__FILE__, __LINE__, "getcwd failed: %s", + nonnull (strerror (errno))); + tmp_len = strlen (tmp); + concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1); + memcpy (concat_name, tmp, tmp_len); + concat_name[tmp_len] = '/'; + strcpy (concat_name + tmp_len + 1, wrapper); + + if (check_executable (concat_name)) + return concat_name; + XFREE (concat_name); + return NULL; +} + +char * +chase_symlinks (const char *pathspec) +{ +#ifndef S_ISLNK + return xstrdup (pathspec); +#else + char buf[LT_PATHMAX]; + struct stat s; + char *tmp_pathspec = xstrdup (pathspec); + char *p; + int has_symlinks = 0; + while (strlen (tmp_pathspec) && !has_symlinks) + { + lt_debugprintf (__FILE__, __LINE__, + "checking path component for symlinks: %s\n", + tmp_pathspec); + if (lstat (tmp_pathspec, &s) == 0) + { + if (S_ISLNK (s.st_mode) != 0) + { + has_symlinks = 1; + break; + } + + /* search backwards for last DIR_SEPARATOR */ + p = tmp_pathspec + strlen (tmp_pathspec) - 1; + while ((p > tmp_pathspec) && (!IS_DIR_SEPARATOR (*p))) + p--; + if ((p == tmp_pathspec) && (!IS_DIR_SEPARATOR (*p))) + { + /* no more DIR_SEPARATORS left */ + break; + } + *p = '\0'; + } + else + { + lt_fatal (__FILE__, __LINE__, + "error accessing file \"%s\": %s", + tmp_pathspec, nonnull (strerror (errno))); + } + } + XFREE (tmp_pathspec); + + if (!has_symlinks) + { + return xstrdup (pathspec); + } + + tmp_pathspec = realpath (pathspec, buf); + if (tmp_pathspec == 0) + { + lt_fatal (__FILE__, __LINE__, + "could not follow symlinks for %s", pathspec); + } + return xstrdup (tmp_pathspec); +#endif +} + +char * +strendzap (char *str, const char *pat) +{ + size_t len, patlen; + + assert (str != NULL); + assert (pat != NULL); + + len = strlen (str); + patlen = strlen (pat); + + if (patlen <= len) + { + str += len - patlen; + if (STREQ (str, pat)) + *str = '\0'; + } + return str; +} + +void +lt_debugprintf (const char *file, int line, const char *fmt, ...) +{ + va_list args; + if (lt_debug) + { + (void) fprintf (stderr, "%s:%s:%d: ", program_name, file, line); + va_start (args, fmt); + (void) vfprintf (stderr, fmt, args); + va_end (args); + } +} + +static void +lt_error_core (int exit_status, const char *file, + int line, const char *mode, + const char *message, va_list ap) +{ + fprintf (stderr, "%s:%s:%d: %s: ", program_name, file, line, mode); + vfprintf (stderr, message, ap); + fprintf (stderr, ".\n"); + + if (exit_status >= 0) + exit (exit_status); +} + +void +lt_fatal (const char *file, int line, const char *message, ...) +{ + va_list ap; + va_start (ap, message); + lt_error_core (EXIT_FAILURE, file, line, "FATAL", message, ap); + va_end (ap); +} + +static const char * +nonnull (const char *s) +{ + return s ? s : "(null)"; +} + +static const char * +nonempty (const char *s) +{ + return (s && !*s) ? "(empty)" : nonnull (s); +} + +void +lt_setenv (const char *name, const char *value) +{ + lt_debugprintf (__FILE__, __LINE__, + "(lt_setenv) setting '%s' to '%s'\n", + nonnull (name), nonnull (value)); + { +#ifdef HAVE_SETENV + /* always make a copy, for consistency with !HAVE_SETENV */ + char *str = xstrdup (value); + setenv (name, str, 1); +#else + size_t len = strlen (name) + 1 + strlen (value) + 1; + char *str = XMALLOC (char, len); + sprintf (str, "%s=%s", name, value); + if (putenv (str) != EXIT_SUCCESS) + { + XFREE (str); + } +#endif + } +} + +char * +lt_extend_str (const char *orig_value, const char *add, int to_end) +{ + char *new_value; + if (orig_value && *orig_value) + { + size_t orig_value_len = strlen (orig_value); + size_t add_len = strlen (add); + new_value = XMALLOC (char, add_len + orig_value_len + 1); + if (to_end) + { + strcpy (new_value, orig_value); + strcpy (new_value + orig_value_len, add); + } + else + { + strcpy (new_value, add); + strcpy (new_value + add_len, orig_value); + } + } + else + { + new_value = xstrdup (add); + } + return new_value; +} + +void +lt_update_exe_path (const char *name, const char *value) +{ + lt_debugprintf (__FILE__, __LINE__, + "(lt_update_exe_path) modifying '%s' by prepending '%s'\n", + nonnull (name), nonnull (value)); + + if (name && *name && value && *value) + { + char *new_value = lt_extend_str (getenv (name), value, 0); + /* some systems can't cope with a ':'-terminated path #' */ + size_t len = strlen (new_value); + while ((len > 0) && IS_PATH_SEPARATOR (new_value[len-1])) + { + new_value[--len] = '\0'; + } + lt_setenv (name, new_value); + XFREE (new_value); + } +} + +void +lt_update_lib_path (const char *name, const char *value) +{ + lt_debugprintf (__FILE__, __LINE__, + "(lt_update_lib_path) modifying '%s' by prepending '%s'\n", + nonnull (name), nonnull (value)); + + if (name && *name && value && *value) + { + char *new_value = lt_extend_str (getenv (name), value, 0); + lt_setenv (name, new_value); + XFREE (new_value); + } +} + +EOF + case $host_os in + mingw*) + cat <<"EOF" + +/* Prepares an argument vector before calling spawn(). + Note that spawn() does not by itself call the command interpreter + (getenv ("COMSPEC") != NULL ? getenv ("COMSPEC") : + ({ OSVERSIONINFO v; v.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); + GetVersionEx(&v); + v.dwPlatformId == VER_PLATFORM_WIN32_NT; + }) ? "cmd.exe" : "command.com"). + Instead it simply concatenates the arguments, separated by ' ', and calls + CreateProcess(). We must quote the arguments since Win32 CreateProcess() + interprets characters like ' ', '\t', '\\', '"' (but not '<' and '>') in a + special way: + - Space and tab are interpreted as delimiters. They are not treated as + delimiters if they are surrounded by double quotes: "...". + - Unescaped double quotes are removed from the input. Their only effect is + that within double quotes, space and tab are treated like normal + characters. + - Backslashes not followed by double quotes are not special. + - But 2*n+1 backslashes followed by a double quote become + n backslashes followed by a double quote (n >= 0): + \" -> " + \\\" -> \" + \\\\\" -> \\" + */ +#define SHELL_SPECIAL_CHARS "\"\\ \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037" +#define SHELL_SPACE_CHARS " \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037" +char ** +prepare_spawn (char **argv) +{ + size_t argc; + char **new_argv; + size_t i; + + /* Count number of arguments. */ + for (argc = 0; argv[argc] != NULL; argc++) + ; + + /* Allocate new argument vector. */ + new_argv = XMALLOC (char *, argc + 1); + + /* Put quoted arguments into the new argument vector. */ + for (i = 0; i < argc; i++) + { + const char *string = argv[i]; + + if (string[0] == '\0') + new_argv[i] = xstrdup ("\"\""); + else if (strpbrk (string, SHELL_SPECIAL_CHARS) != NULL) + { + int quote_around = (strpbrk (string, SHELL_SPACE_CHARS) != NULL); + size_t length; + unsigned int backslashes; + const char *s; + char *quoted_string; + char *p; + + length = 0; + backslashes = 0; + if (quote_around) + length++; + for (s = string; *s != '\0'; s++) + { + char c = *s; + if (c == '"') + length += backslashes + 1; + length++; + if (c == '\\') + backslashes++; + else + backslashes = 0; + } + if (quote_around) + length += backslashes + 1; + + quoted_string = XMALLOC (char, length + 1); + + p = quoted_string; + backslashes = 0; + if (quote_around) + *p++ = '"'; + for (s = string; *s != '\0'; s++) + { + char c = *s; + if (c == '"') + { + unsigned int j; + for (j = backslashes + 1; j > 0; j--) + *p++ = '\\'; + } + *p++ = c; + if (c == '\\') + backslashes++; + else + backslashes = 0; + } + if (quote_around) + { + unsigned int j; + for (j = backslashes; j > 0; j--) + *p++ = '\\'; + *p++ = '"'; + } + *p = '\0'; + + new_argv[i] = quoted_string; + } + else + new_argv[i] = (char *) string; + } + new_argv[argc] = NULL; + + return new_argv; +} +EOF + ;; + esac + + cat <<"EOF" +void lt_dump_script (FILE* f) +{ +EOF + func_emit_wrapper yes | + $SED -n -e ' +s/^\(.\{79\}\)\(..*\)/\1\ +\2/ +h +s/\([\\"]\)/\\\1/g +s/$/\\n/ +s/\([^\n]*\).*/ fputs ("\1", f);/p +g +D' + cat <<"EOF" +} +EOF +} +# end: func_emit_cwrapperexe_src + +# func_win32_import_lib_p ARG +# True if ARG is an import lib, as indicated by $file_magic_cmd +func_win32_import_lib_p () +{ + $debug_cmd + + case `eval $file_magic_cmd \"\$1\" 2>/dev/null | $SED -e 10q` in + *import*) : ;; + *) false ;; + esac +} + +# func_suncc_cstd_abi +# !!ONLY CALL THIS FOR SUN CC AFTER $compile_command IS FULLY EXPANDED!! +# Several compiler flags select an ABI that is incompatible with the +# Cstd library. Avoid specifying it if any are in CXXFLAGS. +func_suncc_cstd_abi () +{ + $debug_cmd + + case " $compile_command " in + *" -compat=g "*|*\ -std=c++[0-9][0-9]\ *|*" -library=stdcxx4 "*|*" -library=stlport4 "*) + suncc_use_cstd_abi=no + ;; + *) + suncc_use_cstd_abi=yes + ;; + esac +} + +# func_mode_link arg... +func_mode_link () +{ + $debug_cmd + + case $host in + *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*) + # It is impossible to link a dll without this setting, and + # we shouldn't force the makefile maintainer to figure out + # what system we are compiling for in order to pass an extra + # flag for every libtool invocation. + # allow_undefined=no + + # FIXME: Unfortunately, there are problems with the above when trying + # to make a dll that has undefined symbols, in which case not + # even a static library is built. For now, we need to specify + # -no-undefined on the libtool link line when we can be certain + # that all symbols are satisfied, otherwise we get a static library. + allow_undefined=yes + ;; + *) + allow_undefined=yes + ;; + esac + libtool_args=$nonopt + base_compile="$nonopt $@" + compile_command=$nonopt + finalize_command=$nonopt + + compile_rpath= + finalize_rpath= + compile_shlibpath= + finalize_shlibpath= + convenience= + old_convenience= + deplibs= + old_deplibs= + compiler_flags= + linker_flags= + dllsearchpath= + lib_search_path=`pwd` + inst_prefix_dir= + new_inherited_linker_flags= + + avoid_version=no + bindir= + dlfiles= + dlprefiles= + dlself=no + export_dynamic=no + export_symbols= + export_symbols_regex= + generated= + libobjs= + ltlibs= + module=no + no_install=no + objs= + os2dllname= + non_pic_objects= + precious_files_regex= + prefer_static_libs=no + preload=false + prev= + prevarg= + release= + rpath= + xrpath= + perm_rpath= + temp_rpath= + thread_safe=no + vinfo= + vinfo_number=no + weak_libs= + single_module=$wl-single_module + func_infer_tag $base_compile + + # We need to know -static, to get the right output filenames. + for arg + do + case $arg in + -shared) + test yes != "$build_libtool_libs" \ + && func_fatal_configuration "cannot build a shared library" + build_old_libs=no + break + ;; + -all-static | -static | -static-libtool-libs) + case $arg in + -all-static) + if test yes = "$build_libtool_libs" && test -z "$link_static_flag"; then + func_warning "complete static linking is impossible in this configuration" + fi + if test -n "$link_static_flag"; then + dlopen_self=$dlopen_self_static + fi + prefer_static_libs=yes + ;; + -static) + if test -z "$pic_flag" && test -n "$link_static_flag"; then + dlopen_self=$dlopen_self_static + fi + prefer_static_libs=built + ;; + -static-libtool-libs) + if test -z "$pic_flag" && test -n "$link_static_flag"; then + dlopen_self=$dlopen_self_static + fi + prefer_static_libs=yes + ;; + esac + build_libtool_libs=no + build_old_libs=yes + break + ;; + esac + done + + # See if our shared archives depend on static archives. + test -n "$old_archive_from_new_cmds" && build_old_libs=yes + + # Go through the arguments, transforming them on the way. + while test "$#" -gt 0; do + arg=$1 + shift + func_quote_for_eval "$arg" + qarg=$func_quote_for_eval_unquoted_result + func_append libtool_args " $func_quote_for_eval_result" + + # If the previous option needs an argument, assign it. + if test -n "$prev"; then + case $prev in + output) + func_append compile_command " @OUTPUT@" + func_append finalize_command " @OUTPUT@" + ;; + esac + + case $prev in + bindir) + bindir=$arg + prev= + continue + ;; + dlfiles|dlprefiles) + $preload || { + # Add the symbol object into the linking commands. + func_append compile_command " @SYMFILE@" + func_append finalize_command " @SYMFILE@" + preload=: + } + case $arg in + *.la | *.lo) ;; # We handle these cases below. + force) + if test no = "$dlself"; then + dlself=needless + export_dynamic=yes + fi + prev= + continue + ;; + self) + if test dlprefiles = "$prev"; then + dlself=yes + elif test dlfiles = "$prev" && test yes != "$dlopen_self"; then + dlself=yes + else + dlself=needless + export_dynamic=yes + fi + prev= + continue + ;; + *) + if test dlfiles = "$prev"; then + func_append dlfiles " $arg" + else + func_append dlprefiles " $arg" + fi + prev= + continue + ;; + esac + ;; + expsyms) + export_symbols=$arg + test -f "$arg" \ + || func_fatal_error "symbol file '$arg' does not exist" + prev= + continue + ;; + expsyms_regex) + export_symbols_regex=$arg + prev= + continue + ;; + framework) + case $host in + *-*-darwin*) + case "$deplibs " in + *" $qarg.ltframework "*) ;; + *) func_append deplibs " $qarg.ltframework" # this is fixed later + ;; + esac + ;; + esac + prev= + continue + ;; + inst_prefix) + inst_prefix_dir=$arg + prev= + continue + ;; + mllvm) + # Clang does not use LLVM to link, so we can simply discard any + # '-mllvm $arg' options when doing the link step. + prev= + continue + ;; + objectlist) + if test -f "$arg"; then + save_arg=$arg + moreargs= + for fil in `cat "$save_arg"` + do +# func_append moreargs " $fil" + arg=$fil + # A libtool-controlled object. + + # Check to see that this really is a libtool object. + if func_lalib_unsafe_p "$arg"; then + pic_object= + non_pic_object= + + # Read the .lo file + func_source "$arg" + + if test -z "$pic_object" || + test -z "$non_pic_object" || + test none = "$pic_object" && + test none = "$non_pic_object"; then + func_fatal_error "cannot find name of object for '$arg'" + fi + + # Extract subdirectory from the argument. + func_dirname "$arg" "/" "" + xdir=$func_dirname_result + + if test none != "$pic_object"; then + # Prepend the subdirectory the object is found in. + pic_object=$xdir$pic_object + + if test dlfiles = "$prev"; then + if test yes = "$build_libtool_libs" && test yes = "$dlopen_support"; then + func_append dlfiles " $pic_object" + prev= + continue + else + # If libtool objects are unsupported, then we need to preload. + prev=dlprefiles + fi + fi + + # CHECK ME: I think I busted this. -Ossama + if test dlprefiles = "$prev"; then + # Preload the old-style object. + func_append dlprefiles " $pic_object" + prev= + fi + + # A PIC object. + func_append libobjs " $pic_object" + arg=$pic_object + fi + + # Non-PIC object. + if test none != "$non_pic_object"; then + # Prepend the subdirectory the object is found in. + non_pic_object=$xdir$non_pic_object + + # A standard non-PIC object + func_append non_pic_objects " $non_pic_object" + if test -z "$pic_object" || test none = "$pic_object"; then + arg=$non_pic_object + fi + else + # If the PIC object exists, use it instead. + # $xdir was prepended to $pic_object above. + non_pic_object=$pic_object + func_append non_pic_objects " $non_pic_object" + fi + else + # Only an error if not doing a dry-run. + if $opt_dry_run; then + # Extract subdirectory from the argument. + func_dirname "$arg" "/" "" + xdir=$func_dirname_result + + func_lo2o "$arg" + pic_object=$xdir$objdir/$func_lo2o_result + non_pic_object=$xdir$func_lo2o_result + func_append libobjs " $pic_object" + func_append non_pic_objects " $non_pic_object" + else + func_fatal_error "'$arg' is not a valid libtool object" + fi + fi + done + else + func_fatal_error "link input file '$arg' does not exist" + fi + arg=$save_arg + prev= + continue + ;; + os2dllname) + os2dllname=$arg + prev= + continue + ;; + precious_regex) + precious_files_regex=$arg + prev= + continue + ;; + release) + release=-$arg + prev= + continue + ;; + rpath | xrpath) + # We need an absolute path. + case $arg in + [\\/]* | [A-Za-z]:[\\/]*) ;; + *) + func_fatal_error "only absolute run-paths are allowed" + ;; + esac + if test rpath = "$prev"; then + case "$rpath " in + *" $arg "*) ;; + *) func_append rpath " $arg" ;; + esac + else + case "$xrpath " in + *" $arg "*) ;; + *) func_append xrpath " $arg" ;; + esac + fi + prev= + continue + ;; + shrext) + shrext_cmds=$arg + prev= + continue + ;; + weak) + func_append weak_libs " $arg" + prev= + continue + ;; + xcclinker) + func_append linker_flags " $qarg" + func_append compiler_flags " $qarg" + prev= + func_append compile_command " $qarg" + func_append finalize_command " $qarg" + continue + ;; + xcompiler) + func_append compiler_flags " $qarg" + prev= + func_append compile_command " $qarg" + func_append finalize_command " $qarg" + continue + ;; + xlinker) + func_append linker_flags " $qarg" + func_append compiler_flags " $wl$qarg" + prev= + func_append compile_command " $wl$qarg" + func_append finalize_command " $wl$qarg" + continue + ;; + *) + eval "$prev=\"\$arg\"" + prev= + continue + ;; + esac + fi # test -n "$prev" + + prevarg=$arg + + case $arg in + -all-static) + if test -n "$link_static_flag"; then + # See comment for -static flag below, for more details. + func_append compile_command " $link_static_flag" + func_append finalize_command " $link_static_flag" + fi + continue + ;; + + -allow-undefined) + # FIXME: remove this flag sometime in the future. + func_fatal_error "'-allow-undefined' must not be used because it is the default" + ;; + + -avoid-version) + avoid_version=yes + continue + ;; + + -bindir) + prev=bindir + continue + ;; + + -dlopen) + prev=dlfiles + continue + ;; + + -dlpreopen) + prev=dlprefiles + continue + ;; + + -export-dynamic) + export_dynamic=yes + continue + ;; + + -export-symbols | -export-symbols-regex) + if test -n "$export_symbols" || test -n "$export_symbols_regex"; then + func_fatal_error "more than one -exported-symbols argument is not allowed" + fi + if test X-export-symbols = "X$arg"; then + prev=expsyms + else + prev=expsyms_regex + fi + continue + ;; + + -framework) + prev=framework + continue + ;; + + -inst-prefix-dir) + prev=inst_prefix + continue + ;; + + # The native IRIX linker understands -LANG:*, -LIST:* and -LNO:* + # so, if we see these flags be careful not to treat them like -L + -L[A-Z][A-Z]*:*) + case $with_gcc/$host in + no/*-*-irix* | /*-*-irix*) + func_append compile_command " $arg" + func_append finalize_command " $arg" + ;; + esac + continue + ;; + + -L*) + func_stripname "-L" '' "$arg" + if test -z "$func_stripname_result"; then + if test "$#" -gt 0; then + func_fatal_error "require no space between '-L' and '$1'" + else + func_fatal_error "need path for '-L' option" + fi + fi + func_resolve_sysroot "$func_stripname_result" + dir=$func_resolve_sysroot_result + # We need an absolute path. + case $dir in + [\\/]* | [A-Za-z]:[\\/]*) ;; + *) + absdir=`cd "$dir" && pwd` + test -z "$absdir" && \ + func_fatal_error "cannot determine absolute directory name of '$dir'" + dir=$absdir + ;; + esac + case "$deplibs " in + *" -L$dir "* | *" $arg "*) + # Will only happen for absolute or sysroot arguments + ;; + *) + # Preserve sysroot, but never include relative directories + case $dir in + [\\/]* | [A-Za-z]:[\\/]* | =*) func_append deplibs " $arg" ;; + *) func_append deplibs " -L$dir" ;; + esac + func_append lib_search_path " $dir" + ;; + esac + case $host in + *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*) + testbindir=`$ECHO "$dir" | $SED 's*/lib$*/bin*'` + case :$dllsearchpath: in + *":$dir:"*) ;; + ::) dllsearchpath=$dir;; + *) func_append dllsearchpath ":$dir";; + esac + case :$dllsearchpath: in + *":$testbindir:"*) ;; + ::) dllsearchpath=$testbindir;; + *) func_append dllsearchpath ":$testbindir";; + esac + ;; + esac + continue + ;; + + -l*) + if test X-lc = "X$arg" || test X-lm = "X$arg"; then + case $host in + *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-beos* | *-cegcc* | *-*-haiku*) + # These systems don't actually have a C or math library (as such) + continue + ;; + *-*-os2*) + # These systems don't actually have a C library (as such) + test X-lc = "X$arg" && continue + ;; + *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* | *-*-bitrig*) + # Do not include libc due to us having libc/libc_r. + test X-lc = "X$arg" && continue + ;; + *-*-rhapsody* | *-*-darwin1.[012]) + # Rhapsody C and math libraries are in the System framework + func_append deplibs " System.ltframework" + continue + ;; + *-*-sco3.2v5* | *-*-sco5v6*) + # Causes problems with __ctype + test X-lc = "X$arg" && continue + ;; + *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*) + # Compiler inserts libc in the correct place for threads to work + test X-lc = "X$arg" && continue + ;; + esac + elif test X-lc_r = "X$arg"; then + case $host in + *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* | *-*-bitrig*) + # Do not include libc_r directly, use -pthread flag. + continue + ;; + esac + fi + func_append deplibs " $arg" + continue + ;; + + -mllvm) + prev=mllvm + continue + ;; + + -module) + module=yes + continue + ;; + + # Tru64 UNIX uses -model [arg] to determine the layout of C++ + # classes, name mangling, and exception handling. + # Darwin uses the -arch flag to determine output architecture. + -model|-arch|-isysroot|--sysroot) + func_append compiler_flags " $arg" + func_append compile_command " $arg" + func_append finalize_command " $arg" + prev=xcompiler + continue + ;; + + -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \ + |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*) + func_append compiler_flags " $arg" + func_append compile_command " $arg" + func_append finalize_command " $arg" + case "$new_inherited_linker_flags " in + *" $arg "*) ;; + * ) func_append new_inherited_linker_flags " $arg" ;; + esac + continue + ;; + + -multi_module) + single_module=$wl-multi_module + continue + ;; + + -no-fast-install) + fast_install=no + continue + ;; + + -no-install) + case $host in + *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-darwin* | *-cegcc*) + # The PATH hackery in wrapper scripts is required on Windows + # and Darwin in order for the loader to find any dlls it needs. + func_warning "'-no-install' is ignored for $host" + func_warning "assuming '-no-fast-install' instead" + fast_install=no + ;; + *) no_install=yes ;; + esac + continue + ;; + + -no-undefined) + allow_undefined=no + continue + ;; + + -objectlist) + prev=objectlist + continue + ;; + + -os2dllname) + prev=os2dllname + continue + ;; + + -o) prev=output ;; + + -precious-files-regex) + prev=precious_regex + continue + ;; + + -release) + prev=release + continue + ;; + + -rpath) + prev=rpath + continue + ;; + + -R) + prev=xrpath + continue + ;; + + -R*) + func_stripname '-R' '' "$arg" + dir=$func_stripname_result + # We need an absolute path. + case $dir in + [\\/]* | [A-Za-z]:[\\/]*) ;; + =*) + func_stripname '=' '' "$dir" + dir=$lt_sysroot$func_stripname_result + ;; + *) + func_fatal_error "only absolute run-paths are allowed" + ;; + esac + case "$xrpath " in + *" $dir "*) ;; + *) func_append xrpath " $dir" ;; + esac + continue + ;; + + -shared) + # The effects of -shared are defined in a previous loop. + continue + ;; + + -shrext) + prev=shrext + continue + ;; + + -static | -static-libtool-libs) + # The effects of -static are defined in a previous loop. + # We used to do the same as -all-static on platforms that + # didn't have a PIC flag, but the assumption that the effects + # would be equivalent was wrong. It would break on at least + # Digital Unix and AIX. + continue + ;; + + -thread-safe) + thread_safe=yes + continue + ;; + + -version-info) + prev=vinfo + continue + ;; + + -version-number) + prev=vinfo + vinfo_number=yes + continue + ;; + + -weak) + prev=weak + continue + ;; + + -Wc,*) + func_stripname '-Wc,' '' "$arg" + args=$func_stripname_result + arg= + save_ifs=$IFS; IFS=, + for flag in $args; do + IFS=$save_ifs + func_quote_for_eval "$flag" + func_append arg " $func_quote_for_eval_result" + func_append compiler_flags " $func_quote_for_eval_result" + done + IFS=$save_ifs + func_stripname ' ' '' "$arg" + arg=$func_stripname_result + ;; + + -Wl,*) + func_stripname '-Wl,' '' "$arg" + args=$func_stripname_result + arg= + save_ifs=$IFS; IFS=, + for flag in $args; do + IFS=$save_ifs + func_quote_for_eval "$flag" + func_append arg " $wl$func_quote_for_eval_result" + func_append compiler_flags " $wl$func_quote_for_eval_result" + func_append linker_flags " $func_quote_for_eval_result" + done + IFS=$save_ifs + func_stripname ' ' '' "$arg" + arg=$func_stripname_result + ;; + + -Xcompiler) + prev=xcompiler + continue + ;; + + -Xlinker) + prev=xlinker + continue + ;; + + -XCClinker) + prev=xcclinker + continue + ;; + + # -msg_* for osf cc + -msg_*) + func_quote_for_eval "$arg" + arg=$func_quote_for_eval_result + ;; + + # Flags to be passed through unchanged, with rationale: + # -64, -mips[0-9] enable 64-bit mode for the SGI compiler + # -r[0-9][0-9]* specify processor for the SGI compiler + # -xarch=*, -xtarget=* enable 64-bit mode for the Sun compiler + # +DA*, +DD* enable 64-bit mode for the HP compiler + # -q* compiler args for the IBM compiler + # -m*, -t[45]*, -txscale* architecture-specific flags for GCC + # -F/path path to uninstalled frameworks, gcc on darwin + # -p, -pg, --coverage, -fprofile-* profiling flags for GCC + # -fstack-protector* stack protector flags for GCC + # @file GCC response files + # -tp=* Portland pgcc target processor selection + # --sysroot=* for sysroot support + # -O*, -g*, -flto*, -fwhopr*, -fuse-linker-plugin GCC link-time optimization + # -specs=* GCC specs files + # -stdlib=* select c++ std lib with clang + -64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \ + -t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*|-tp=*|--sysroot=*| \ + -O*|-g*|-flto*|-fwhopr*|-fuse-linker-plugin|-fstack-protector*|-stdlib=*| \ + -specs=*) + func_quote_for_eval "$arg" + arg=$func_quote_for_eval_result + func_append compile_command " $arg" + func_append finalize_command " $arg" + func_append compiler_flags " $arg" + continue + ;; + + -Z*) + if test os2 = "`expr $host : '.*\(os2\)'`"; then + # OS/2 uses -Zxxx to specify OS/2-specific options + compiler_flags="$compiler_flags $arg" + func_append compile_command " $arg" + func_append finalize_command " $arg" + case $arg in + -Zlinker | -Zstack) + prev=xcompiler + ;; + esac + continue + else + # Otherwise treat like 'Some other compiler flag' below + func_quote_for_eval "$arg" + arg=$func_quote_for_eval_result + fi + ;; + + # Some other compiler flag. + -* | +*) + func_quote_for_eval "$arg" + arg=$func_quote_for_eval_result + ;; + + *.$objext) + # A standard object. + func_append objs " $arg" + ;; + + *.lo) + # A libtool-controlled object. + + # Check to see that this really is a libtool object. + if func_lalib_unsafe_p "$arg"; then + pic_object= + non_pic_object= + + # Read the .lo file + func_source "$arg" + + if test -z "$pic_object" || + test -z "$non_pic_object" || + test none = "$pic_object" && + test none = "$non_pic_object"; then + func_fatal_error "cannot find name of object for '$arg'" + fi + + # Extract subdirectory from the argument. + func_dirname "$arg" "/" "" + xdir=$func_dirname_result + + test none = "$pic_object" || { + # Prepend the subdirectory the object is found in. + pic_object=$xdir$pic_object + + if test dlfiles = "$prev"; then + if test yes = "$build_libtool_libs" && test yes = "$dlopen_support"; then + func_append dlfiles " $pic_object" + prev= + continue + else + # If libtool objects are unsupported, then we need to preload. + prev=dlprefiles + fi + fi + + # CHECK ME: I think I busted this. -Ossama + if test dlprefiles = "$prev"; then + # Preload the old-style object. + func_append dlprefiles " $pic_object" + prev= + fi + + # A PIC object. + func_append libobjs " $pic_object" + arg=$pic_object + } + + # Non-PIC object. + if test none != "$non_pic_object"; then + # Prepend the subdirectory the object is found in. + non_pic_object=$xdir$non_pic_object + + # A standard non-PIC object + func_append non_pic_objects " $non_pic_object" + if test -z "$pic_object" || test none = "$pic_object"; then + arg=$non_pic_object + fi + else + # If the PIC object exists, use it instead. + # $xdir was prepended to $pic_object above. + non_pic_object=$pic_object + func_append non_pic_objects " $non_pic_object" + fi + else + # Only an error if not doing a dry-run. + if $opt_dry_run; then + # Extract subdirectory from the argument. + func_dirname "$arg" "/" "" + xdir=$func_dirname_result + + func_lo2o "$arg" + pic_object=$xdir$objdir/$func_lo2o_result + non_pic_object=$xdir$func_lo2o_result + func_append libobjs " $pic_object" + func_append non_pic_objects " $non_pic_object" + else + func_fatal_error "'$arg' is not a valid libtool object" + fi + fi + ;; + + *.$libext) + # An archive. + func_append deplibs " $arg" + func_append old_deplibs " $arg" + continue + ;; + + *.la) + # A libtool-controlled library. + + func_resolve_sysroot "$arg" + if test dlfiles = "$prev"; then + # This library was specified with -dlopen. + func_append dlfiles " $func_resolve_sysroot_result" + prev= + elif test dlprefiles = "$prev"; then + # The library was specified with -dlpreopen. + func_append dlprefiles " $func_resolve_sysroot_result" + prev= + else + func_append deplibs " $func_resolve_sysroot_result" + fi + continue + ;; + + # Some other compiler argument. + *) + # Unknown arguments in both finalize_command and compile_command need + # to be aesthetically quoted because they are evaled later. + func_quote_for_eval "$arg" + arg=$func_quote_for_eval_result + ;; + esac # arg + + # Now actually substitute the argument into the commands. + if test -n "$arg"; then + func_append compile_command " $arg" + func_append finalize_command " $arg" + fi + done # argument parsing loop + + test -n "$prev" && \ + func_fatal_help "the '$prevarg' option requires an argument" + + if test yes = "$export_dynamic" && test -n "$export_dynamic_flag_spec"; then + eval arg=\"$export_dynamic_flag_spec\" + func_append compile_command " $arg" + func_append finalize_command " $arg" + fi + + oldlibs= + # calculate the name of the file, without its directory + func_basename "$output" + outputname=$func_basename_result + libobjs_save=$libobjs + + if test -n "$shlibpath_var"; then + # get the directories listed in $shlibpath_var + eval shlib_search_path=\`\$ECHO \"\$$shlibpath_var\" \| \$SED \'s/:/ /g\'\` + else + shlib_search_path= + fi + eval sys_lib_search_path=\"$sys_lib_search_path_spec\" + eval sys_lib_dlsearch_path=\"$sys_lib_dlsearch_path_spec\" + + # Definition is injected by LT_CONFIG during libtool generation. + func_munge_path_list sys_lib_dlsearch_path "$LT_SYS_LIBRARY_PATH" + + func_dirname "$output" "/" "" + output_objdir=$func_dirname_result$objdir + func_to_tool_file "$output_objdir/" + tool_output_objdir=$func_to_tool_file_result + # Create the object directory. + func_mkdir_p "$output_objdir" + + # Determine the type of output + case $output in + "") + func_fatal_help "you must specify an output file" + ;; + *.$libext) linkmode=oldlib ;; + *.lo | *.$objext) linkmode=obj ;; + *.la) linkmode=lib ;; + *) linkmode=prog ;; # Anything else should be a program. + esac + + specialdeplibs= + + libs= + # Find all interdependent deplibs by searching for libraries + # that are linked more than once (e.g. -la -lb -la) + for deplib in $deplibs; do + if $opt_preserve_dup_deps; then + case "$libs " in + *" $deplib "*) func_append specialdeplibs " $deplib" ;; + esac + fi + func_append libs " $deplib" + done + + if test lib = "$linkmode"; then + libs="$predeps $libs $compiler_lib_search_path $postdeps" + + # Compute libraries that are listed more than once in $predeps + # $postdeps and mark them as special (i.e., whose duplicates are + # not to be eliminated). + pre_post_deps= + if $opt_duplicate_compiler_generated_deps; then + for pre_post_dep in $predeps $postdeps; do + case "$pre_post_deps " in + *" $pre_post_dep "*) func_append specialdeplibs " $pre_post_deps" ;; + esac + func_append pre_post_deps " $pre_post_dep" + done + fi + pre_post_deps= + fi + + deplibs= + newdependency_libs= + newlib_search_path= + need_relink=no # whether we're linking any uninstalled libtool libraries + notinst_deplibs= # not-installed libtool libraries + notinst_path= # paths that contain not-installed libtool libraries + + case $linkmode in + lib) + passes="conv dlpreopen link" + for file in $dlfiles $dlprefiles; do + case $file in + *.la) ;; + *) + func_fatal_help "libraries can '-dlopen' only libtool libraries: $file" + ;; + esac + done + ;; + prog) + compile_deplibs= + finalize_deplibs= + alldeplibs=false + newdlfiles= + newdlprefiles= + passes="conv scan dlopen dlpreopen link" + ;; + *) passes="conv" + ;; + esac + + for pass in $passes; do + # The preopen pass in lib mode reverses $deplibs; put it back here + # so that -L comes before libs that need it for instance... + if test lib,link = "$linkmode,$pass"; then + ## FIXME: Find the place where the list is rebuilt in the wrong + ## order, and fix it there properly + tmp_deplibs= + for deplib in $deplibs; do + tmp_deplibs="$deplib $tmp_deplibs" + done + deplibs=$tmp_deplibs + fi + + if test lib,link = "$linkmode,$pass" || + test prog,scan = "$linkmode,$pass"; then + libs=$deplibs + deplibs= + fi + if test prog = "$linkmode"; then + case $pass in + dlopen) libs=$dlfiles ;; + dlpreopen) libs=$dlprefiles ;; + link) libs="$deplibs %DEPLIBS% $dependency_libs" ;; + esac + fi + if test lib,dlpreopen = "$linkmode,$pass"; then + # Collect and forward deplibs of preopened libtool libs + for lib in $dlprefiles; do + # Ignore non-libtool-libs + dependency_libs= + func_resolve_sysroot "$lib" + case $lib in + *.la) func_source "$func_resolve_sysroot_result" ;; + esac + + # Collect preopened libtool deplibs, except any this library + # has declared as weak libs + for deplib in $dependency_libs; do + func_basename "$deplib" + deplib_base=$func_basename_result + case " $weak_libs " in + *" $deplib_base "*) ;; + *) func_append deplibs " $deplib" ;; + esac + done + done + libs=$dlprefiles + fi + if test dlopen = "$pass"; then + # Collect dlpreopened libraries + save_deplibs=$deplibs + deplibs= + fi + + for deplib in $libs; do + lib= + found=false + case $deplib in + -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \ + |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*) + if test prog,link = "$linkmode,$pass"; then + compile_deplibs="$deplib $compile_deplibs" + finalize_deplibs="$deplib $finalize_deplibs" + else + func_append compiler_flags " $deplib" + if test lib = "$linkmode"; then + case "$new_inherited_linker_flags " in + *" $deplib "*) ;; + * ) func_append new_inherited_linker_flags " $deplib" ;; + esac + fi + fi + continue + ;; + -l*) + if test lib != "$linkmode" && test prog != "$linkmode"; then + func_warning "'-l' is ignored for archives/objects" + continue + fi + func_stripname '-l' '' "$deplib" + name=$func_stripname_result + if test lib = "$linkmode"; then + searchdirs="$newlib_search_path $lib_search_path $compiler_lib_search_dirs $sys_lib_search_path $shlib_search_path" + else + searchdirs="$newlib_search_path $lib_search_path $sys_lib_search_path $shlib_search_path" + fi + for searchdir in $searchdirs; do + for search_ext in .la $std_shrext .so .a; do + # Search the libtool library + lib=$searchdir/lib$name$search_ext + if test -f "$lib"; then + if test .la = "$search_ext"; then + found=: + else + found=false + fi + break 2 + fi + done + done + if $found; then + # deplib is a libtool library + # If $allow_libtool_libs_with_static_runtimes && $deplib is a stdlib, + # We need to do some special things here, and not later. + if test yes = "$allow_libtool_libs_with_static_runtimes"; then + case " $predeps $postdeps " in + *" $deplib "*) + if func_lalib_p "$lib"; then + library_names= + old_library= + func_source "$lib" + for l in $old_library $library_names; do + ll=$l + done + if test "X$ll" = "X$old_library"; then # only static version available + found=false + func_dirname "$lib" "" "." + ladir=$func_dirname_result + lib=$ladir/$old_library + if test prog,link = "$linkmode,$pass"; then + compile_deplibs="$deplib $compile_deplibs" + finalize_deplibs="$deplib $finalize_deplibs" + else + deplibs="$deplib $deplibs" + test lib = "$linkmode" && newdependency_libs="$deplib $newdependency_libs" + fi + continue + fi + fi + ;; + *) ;; + esac + fi + else + # deplib doesn't seem to be a libtool library + if test prog,link = "$linkmode,$pass"; then + compile_deplibs="$deplib $compile_deplibs" + finalize_deplibs="$deplib $finalize_deplibs" + else + deplibs="$deplib $deplibs" + test lib = "$linkmode" && newdependency_libs="$deplib $newdependency_libs" + fi + continue + fi + ;; # -l + *.ltframework) + if test prog,link = "$linkmode,$pass"; then + compile_deplibs="$deplib $compile_deplibs" + finalize_deplibs="$deplib $finalize_deplibs" + else + deplibs="$deplib $deplibs" + if test lib = "$linkmode"; then + case "$new_inherited_linker_flags " in + *" $deplib "*) ;; + * ) func_append new_inherited_linker_flags " $deplib" ;; + esac + fi + fi + continue + ;; + -L*) + case $linkmode in + lib) + deplibs="$deplib $deplibs" + test conv = "$pass" && continue + newdependency_libs="$deplib $newdependency_libs" + func_stripname '-L' '' "$deplib" + func_resolve_sysroot "$func_stripname_result" + func_append newlib_search_path " $func_resolve_sysroot_result" + ;; + prog) + if test conv = "$pass"; then + deplibs="$deplib $deplibs" + continue + fi + if test scan = "$pass"; then + deplibs="$deplib $deplibs" + else + compile_deplibs="$deplib $compile_deplibs" + finalize_deplibs="$deplib $finalize_deplibs" + fi + func_stripname '-L' '' "$deplib" + func_resolve_sysroot "$func_stripname_result" + func_append newlib_search_path " $func_resolve_sysroot_result" + ;; + *) + func_warning "'-L' is ignored for archives/objects" + ;; + esac # linkmode + continue + ;; # -L + -R*) + if test link = "$pass"; then + func_stripname '-R' '' "$deplib" + func_resolve_sysroot "$func_stripname_result" + dir=$func_resolve_sysroot_result + # Make sure the xrpath contains only unique directories. + case "$xrpath " in + *" $dir "*) ;; + *) func_append xrpath " $dir" ;; + esac + fi + deplibs="$deplib $deplibs" + continue + ;; + *.la) + func_resolve_sysroot "$deplib" + lib=$func_resolve_sysroot_result + ;; + *.$libext) + if test conv = "$pass"; then + deplibs="$deplib $deplibs" + continue + fi + case $linkmode in + lib) + # Linking convenience modules into shared libraries is allowed, + # but linking other static libraries is non-portable. + case " $dlpreconveniencelibs " in + *" $deplib "*) ;; + *) + valid_a_lib=false + case $deplibs_check_method in + match_pattern*) + set dummy $deplibs_check_method; shift + match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"` + if eval "\$ECHO \"$deplib\"" 2>/dev/null | $SED 10q \ + | $EGREP "$match_pattern_regex" > /dev/null; then + valid_a_lib=: + fi + ;; + pass_all) + valid_a_lib=: + ;; + esac + if $valid_a_lib; then + echo + $ECHO "*** Warning: Linking the shared library $output against the" + $ECHO "*** static library $deplib is not portable!" + deplibs="$deplib $deplibs" + else + echo + $ECHO "*** Warning: Trying to link with static lib archive $deplib." + echo "*** I have the capability to make that library automatically link in when" + echo "*** you link to this library. But I can only do this if you have a" + echo "*** shared version of the library, which you do not appear to have" + echo "*** because the file extensions .$libext of this argument makes me believe" + echo "*** that it is just a static archive that I should not use here." + fi + ;; + esac + continue + ;; + prog) + if test link != "$pass"; then + deplibs="$deplib $deplibs" + else + compile_deplibs="$deplib $compile_deplibs" + finalize_deplibs="$deplib $finalize_deplibs" + fi + continue + ;; + esac # linkmode + ;; # *.$libext + *.lo | *.$objext) + if test conv = "$pass"; then + deplibs="$deplib $deplibs" + elif test prog = "$linkmode"; then + if test dlpreopen = "$pass" || test yes != "$dlopen_support" || test no = "$build_libtool_libs"; then + # If there is no dlopen support or we're linking statically, + # we need to preload. + func_append newdlprefiles " $deplib" + compile_deplibs="$deplib $compile_deplibs" + finalize_deplibs="$deplib $finalize_deplibs" + else + func_append newdlfiles " $deplib" + fi + fi + continue + ;; + %DEPLIBS%) + alldeplibs=: + continue + ;; + esac # case $deplib + + $found || test -f "$lib" \ + || func_fatal_error "cannot find the library '$lib' or unhandled argument '$deplib'" + + # Check to see that this really is a libtool archive. + func_lalib_unsafe_p "$lib" \ + || func_fatal_error "'$lib' is not a valid libtool archive" + + func_dirname "$lib" "" "." + ladir=$func_dirname_result + + dlname= + dlopen= + dlpreopen= + libdir= + library_names= + old_library= + inherited_linker_flags= + # If the library was installed with an old release of libtool, + # it will not redefine variables installed, or shouldnotlink + installed=yes + shouldnotlink=no + avoidtemprpath= + + + # Read the .la file + func_source "$lib" + + # Convert "-framework foo" to "foo.ltframework" + if test -n "$inherited_linker_flags"; then + tmp_inherited_linker_flags=`$ECHO "$inherited_linker_flags" | $SED 's/-framework \([^ $]*\)/\1.ltframework/g'` + for tmp_inherited_linker_flag in $tmp_inherited_linker_flags; do + case " $new_inherited_linker_flags " in + *" $tmp_inherited_linker_flag "*) ;; + *) func_append new_inherited_linker_flags " $tmp_inherited_linker_flag";; + esac + done + fi + dependency_libs=`$ECHO " $dependency_libs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` + if test lib,link = "$linkmode,$pass" || + test prog,scan = "$linkmode,$pass" || + { test prog != "$linkmode" && test lib != "$linkmode"; }; then + test -n "$dlopen" && func_append dlfiles " $dlopen" + test -n "$dlpreopen" && func_append dlprefiles " $dlpreopen" + fi + + if test conv = "$pass"; then + # Only check for convenience libraries + deplibs="$lib $deplibs" + if test -z "$libdir"; then + if test -z "$old_library"; then + func_fatal_error "cannot find name of link library for '$lib'" + fi + # It is a libtool convenience library, so add in its objects. + func_append convenience " $ladir/$objdir/$old_library" + func_append old_convenience " $ladir/$objdir/$old_library" + elif test prog != "$linkmode" && test lib != "$linkmode"; then + func_fatal_error "'$lib' is not a convenience library" + fi + tmp_libs= + for deplib in $dependency_libs; do + deplibs="$deplib $deplibs" + if $opt_preserve_dup_deps; then + case "$tmp_libs " in + *" $deplib "*) func_append specialdeplibs " $deplib" ;; + esac + fi + func_append tmp_libs " $deplib" + done + continue + fi # $pass = conv + + + # Get the name of the library we link against. + linklib= + if test -n "$old_library" && + { test yes = "$prefer_static_libs" || + test built,no = "$prefer_static_libs,$installed"; }; then + linklib=$old_library + else + for l in $old_library $library_names; do + linklib=$l + done + fi + if test -z "$linklib"; then + func_fatal_error "cannot find name of link library for '$lib'" + fi + + # This library was specified with -dlopen. + if test dlopen = "$pass"; then + test -z "$libdir" \ + && func_fatal_error "cannot -dlopen a convenience library: '$lib'" + if test -z "$dlname" || + test yes != "$dlopen_support" || + test no = "$build_libtool_libs" + then + # If there is no dlname, no dlopen support or we're linking + # statically, we need to preload. We also need to preload any + # dependent libraries so libltdl's deplib preloader doesn't + # bomb out in the load deplibs phase. + func_append dlprefiles " $lib $dependency_libs" + else + func_append newdlfiles " $lib" + fi + continue + fi # $pass = dlopen + + # We need an absolute path. + case $ladir in + [\\/]* | [A-Za-z]:[\\/]*) abs_ladir=$ladir ;; + *) + abs_ladir=`cd "$ladir" && pwd` + if test -z "$abs_ladir"; then + func_warning "cannot determine absolute directory name of '$ladir'" + func_warning "passing it literally to the linker, although it might fail" + abs_ladir=$ladir + fi + ;; + esac + func_basename "$lib" + laname=$func_basename_result + + # Find the relevant object directory and library name. + if test yes = "$installed"; then + if test ! -f "$lt_sysroot$libdir/$linklib" && test -f "$abs_ladir/$linklib"; then + func_warning "library '$lib' was moved." + dir=$ladir + absdir=$abs_ladir + libdir=$abs_ladir + else + dir=$lt_sysroot$libdir + absdir=$lt_sysroot$libdir + fi + test yes = "$hardcode_automatic" && avoidtemprpath=yes + else + if test ! -f "$ladir/$objdir/$linklib" && test -f "$abs_ladir/$linklib"; then + dir=$ladir + absdir=$abs_ladir + # Remove this search path later + func_append notinst_path " $abs_ladir" + else + dir=$ladir/$objdir + absdir=$abs_ladir/$objdir + # Remove this search path later + func_append notinst_path " $abs_ladir" + fi + fi # $installed = yes + func_stripname 'lib' '.la' "$laname" + name=$func_stripname_result + + # This library was specified with -dlpreopen. + if test dlpreopen = "$pass"; then + if test -z "$libdir" && test prog = "$linkmode"; then + func_fatal_error "only libraries may -dlpreopen a convenience library: '$lib'" + fi + case $host in + # special handling for platforms with PE-DLLs. + *cygwin* | *mingw* | *cegcc* ) + # Linker will automatically link against shared library if both + # static and shared are present. Therefore, ensure we extract + # symbols from the import library if a shared library is present + # (otherwise, the dlopen module name will be incorrect). We do + # this by putting the import library name into $newdlprefiles. + # We recover the dlopen module name by 'saving' the la file + # name in a special purpose variable, and (later) extracting the + # dlname from the la file. + if test -n "$dlname"; then + func_tr_sh "$dir/$linklib" + eval "libfile_$func_tr_sh_result=\$abs_ladir/\$laname" + func_append newdlprefiles " $dir/$linklib" + else + func_append newdlprefiles " $dir/$old_library" + # Keep a list of preopened convenience libraries to check + # that they are being used correctly in the link pass. + test -z "$libdir" && \ + func_append dlpreconveniencelibs " $dir/$old_library" + fi + ;; + * ) + # Prefer using a static library (so that no silly _DYNAMIC symbols + # are required to link). + if test -n "$old_library"; then + func_append newdlprefiles " $dir/$old_library" + # Keep a list of preopened convenience libraries to check + # that they are being used correctly in the link pass. + test -z "$libdir" && \ + func_append dlpreconveniencelibs " $dir/$old_library" + # Otherwise, use the dlname, so that lt_dlopen finds it. + elif test -n "$dlname"; then + func_append newdlprefiles " $dir/$dlname" + else + func_append newdlprefiles " $dir/$linklib" + fi + ;; + esac + fi # $pass = dlpreopen + + if test -z "$libdir"; then + # Link the convenience library + if test lib = "$linkmode"; then + deplibs="$dir/$old_library $deplibs" + elif test prog,link = "$linkmode,$pass"; then + compile_deplibs="$dir/$old_library $compile_deplibs" + finalize_deplibs="$dir/$old_library $finalize_deplibs" + else + deplibs="$lib $deplibs" # used for prog,scan pass + fi + continue + fi + + + if test prog = "$linkmode" && test link != "$pass"; then + func_append newlib_search_path " $ladir" + deplibs="$lib $deplibs" + + linkalldeplibs=false + if test no != "$link_all_deplibs" || test -z "$library_names" || + test no = "$build_libtool_libs"; then + linkalldeplibs=: + fi + + tmp_libs= + for deplib in $dependency_libs; do + case $deplib in + -L*) func_stripname '-L' '' "$deplib" + func_resolve_sysroot "$func_stripname_result" + func_append newlib_search_path " $func_resolve_sysroot_result" + ;; + esac + # Need to link against all dependency_libs? + if $linkalldeplibs; then + deplibs="$deplib $deplibs" + else + # Need to hardcode shared library paths + # or/and link against static libraries + newdependency_libs="$deplib $newdependency_libs" + fi + if $opt_preserve_dup_deps; then + case "$tmp_libs " in + *" $deplib "*) func_append specialdeplibs " $deplib" ;; + esac + fi + func_append tmp_libs " $deplib" + done # for deplib + continue + fi # $linkmode = prog... + + if test prog,link = "$linkmode,$pass"; then + if test -n "$library_names" && + { { test no = "$prefer_static_libs" || + test built,yes = "$prefer_static_libs,$installed"; } || + test -z "$old_library"; }; then + # We need to hardcode the library path + if test -n "$shlibpath_var" && test -z "$avoidtemprpath"; then + # Make sure the rpath contains only unique directories. + case $temp_rpath: in + *"$absdir:"*) ;; + *) func_append temp_rpath "$absdir:" ;; + esac + fi + + # Hardcode the library path. + # Skip directories that are in the system default run-time + # search path. + case " $sys_lib_dlsearch_path " in + *" $absdir "*) ;; + *) + case "$compile_rpath " in + *" $absdir "*) ;; + *) func_append compile_rpath " $absdir" ;; + esac + ;; + esac + case " $sys_lib_dlsearch_path " in + *" $libdir "*) ;; + *) + case "$finalize_rpath " in + *" $libdir "*) ;; + *) func_append finalize_rpath " $libdir" ;; + esac + ;; + esac + fi # $linkmode,$pass = prog,link... + + if $alldeplibs && + { test pass_all = "$deplibs_check_method" || + { test yes = "$build_libtool_libs" && + test -n "$library_names"; }; }; then + # We only need to search for static libraries + continue + fi + fi + + link_static=no # Whether the deplib will be linked statically + use_static_libs=$prefer_static_libs + if test built = "$use_static_libs" && test yes = "$installed"; then + use_static_libs=no + fi + if test -n "$library_names" && + { test no = "$use_static_libs" || test -z "$old_library"; }; then + case $host in + *cygwin* | *mingw* | *cegcc* | *os2*) + # No point in relinking DLLs because paths are not encoded + func_append notinst_deplibs " $lib" + need_relink=no + ;; + *) + if test no = "$installed"; then + func_append notinst_deplibs " $lib" + need_relink=yes + fi + ;; + esac + # This is a shared library + + # Warn about portability, can't link against -module's on some + # systems (darwin). Don't bleat about dlopened modules though! + dlopenmodule= + for dlpremoduletest in $dlprefiles; do + if test "X$dlpremoduletest" = "X$lib"; then + dlopenmodule=$dlpremoduletest + break + fi + done + if test -z "$dlopenmodule" && test yes = "$shouldnotlink" && test link = "$pass"; then + echo + if test prog = "$linkmode"; then + $ECHO "*** Warning: Linking the executable $output against the loadable module" + else + $ECHO "*** Warning: Linking the shared library $output against the loadable module" + fi + $ECHO "*** $linklib is not portable!" + fi + if test lib = "$linkmode" && + test yes = "$hardcode_into_libs"; then + # Hardcode the library path. + # Skip directories that are in the system default run-time + # search path. + case " $sys_lib_dlsearch_path " in + *" $absdir "*) ;; + *) + case "$compile_rpath " in + *" $absdir "*) ;; + *) func_append compile_rpath " $absdir" ;; + esac + ;; + esac + case " $sys_lib_dlsearch_path " in + *" $libdir "*) ;; + *) + case "$finalize_rpath " in + *" $libdir "*) ;; + *) func_append finalize_rpath " $libdir" ;; + esac + ;; + esac + fi + + if test -n "$old_archive_from_expsyms_cmds"; then + # figure out the soname + set dummy $library_names + shift + realname=$1 + shift + libname=`eval "\\$ECHO \"$libname_spec\""` + # use dlname if we got it. it's perfectly good, no? + if test -n "$dlname"; then + soname=$dlname + elif test -n "$soname_spec"; then + # bleh windows + case $host in + *cygwin* | mingw* | *cegcc* | *os2*) + func_arith $current - $age + major=$func_arith_result + versuffix=-$major + ;; + esac + eval soname=\"$soname_spec\" + else + soname=$realname + fi + + # Make a new name for the extract_expsyms_cmds to use + soroot=$soname + func_basename "$soroot" + soname=$func_basename_result + func_stripname 'lib' '.dll' "$soname" + newlib=libimp-$func_stripname_result.a + + # If the library has no export list, then create one now + if test -f "$output_objdir/$soname-def"; then : + else + func_verbose "extracting exported symbol list from '$soname'" + func_execute_cmds "$extract_expsyms_cmds" 'exit $?' + fi + + # Create $newlib + if test -f "$output_objdir/$newlib"; then :; else + func_verbose "generating import library for '$soname'" + func_execute_cmds "$old_archive_from_expsyms_cmds" 'exit $?' + fi + # make sure the library variables are pointing to the new library + dir=$output_objdir + linklib=$newlib + fi # test -n "$old_archive_from_expsyms_cmds" + + if test prog = "$linkmode" || test relink != "$opt_mode"; then + add_shlibpath= + add_dir= + add= + lib_linked=yes + case $hardcode_action in + immediate | unsupported) + if test no = "$hardcode_direct"; then + add=$dir/$linklib + case $host in + *-*-sco3.2v5.0.[024]*) add_dir=-L$dir ;; + *-*-sysv4*uw2*) add_dir=-L$dir ;; + *-*-sysv5OpenUNIX* | *-*-sysv5UnixWare7.[01].[10]* | \ + *-*-unixware7*) add_dir=-L$dir ;; + *-*-darwin* ) + # if the lib is a (non-dlopened) module then we cannot + # link against it, someone is ignoring the earlier warnings + if /usr/bin/file -L $add 2> /dev/null | + $GREP ": [^:]* bundle" >/dev/null; then + if test "X$dlopenmodule" != "X$lib"; then + $ECHO "*** Warning: lib $linklib is a module, not a shared library" + if test -z "$old_library"; then + echo + echo "*** And there doesn't seem to be a static archive available" + echo "*** The link will probably fail, sorry" + else + add=$dir/$old_library + fi + elif test -n "$old_library"; then + add=$dir/$old_library + fi + fi + esac + elif test no = "$hardcode_minus_L"; then + case $host in + *-*-sunos*) add_shlibpath=$dir ;; + esac + add_dir=-L$dir + add=-l$name + elif test no = "$hardcode_shlibpath_var"; then + add_shlibpath=$dir + add=-l$name + else + lib_linked=no + fi + ;; + relink) + if test yes = "$hardcode_direct" && + test no = "$hardcode_direct_absolute"; then + add=$dir/$linklib + elif test yes = "$hardcode_minus_L"; then + add_dir=-L$absdir + # Try looking first in the location we're being installed to. + if test -n "$inst_prefix_dir"; then + case $libdir in + [\\/]*) + func_append add_dir " -L$inst_prefix_dir$libdir" + ;; + esac + fi + add=-l$name + elif test yes = "$hardcode_shlibpath_var"; then + add_shlibpath=$dir + add=-l$name + else + lib_linked=no + fi + ;; + *) lib_linked=no ;; + esac + + if test yes != "$lib_linked"; then + func_fatal_configuration "unsupported hardcode properties" + fi + + if test -n "$add_shlibpath"; then + case :$compile_shlibpath: in + *":$add_shlibpath:"*) ;; + *) func_append compile_shlibpath "$add_shlibpath:" ;; + esac + fi + if test prog = "$linkmode"; then + test -n "$add_dir" && compile_deplibs="$add_dir $compile_deplibs" + test -n "$add" && compile_deplibs="$add $compile_deplibs" + else + test -n "$add_dir" && deplibs="$add_dir $deplibs" + test -n "$add" && deplibs="$add $deplibs" + if test yes != "$hardcode_direct" && + test yes != "$hardcode_minus_L" && + test yes = "$hardcode_shlibpath_var"; then + case :$finalize_shlibpath: in + *":$libdir:"*) ;; + *) func_append finalize_shlibpath "$libdir:" ;; + esac + fi + fi + fi + + if test prog = "$linkmode" || test relink = "$opt_mode"; then + add_shlibpath= + add_dir= + add= + # Finalize command for both is simple: just hardcode it. + if test yes = "$hardcode_direct" && + test no = "$hardcode_direct_absolute"; then + add=$libdir/$linklib + elif test yes = "$hardcode_minus_L"; then + add_dir=-L$libdir + add=-l$name + elif test yes = "$hardcode_shlibpath_var"; then + case :$finalize_shlibpath: in + *":$libdir:"*) ;; + *) func_append finalize_shlibpath "$libdir:" ;; + esac + add=-l$name + elif test yes = "$hardcode_automatic"; then + if test -n "$inst_prefix_dir" && + test -f "$inst_prefix_dir$libdir/$linklib"; then + add=$inst_prefix_dir$libdir/$linklib + else + add=$libdir/$linklib + fi + else + # We cannot seem to hardcode it, guess we'll fake it. + add_dir=-L$libdir + # Try looking first in the location we're being installed to. + if test -n "$inst_prefix_dir"; then + case $libdir in + [\\/]*) + func_append add_dir " -L$inst_prefix_dir$libdir" + ;; + esac + fi + add=-l$name + fi + + if test prog = "$linkmode"; then + test -n "$add_dir" && finalize_deplibs="$add_dir $finalize_deplibs" + test -n "$add" && finalize_deplibs="$add $finalize_deplibs" + else + test -n "$add_dir" && deplibs="$add_dir $deplibs" + test -n "$add" && deplibs="$add $deplibs" + fi + fi + elif test prog = "$linkmode"; then + # Here we assume that one of hardcode_direct or hardcode_minus_L + # is not unsupported. This is valid on all known static and + # shared platforms. + if test unsupported != "$hardcode_direct"; then + test -n "$old_library" && linklib=$old_library + compile_deplibs="$dir/$linklib $compile_deplibs" + finalize_deplibs="$dir/$linklib $finalize_deplibs" + else + compile_deplibs="-l$name -L$dir $compile_deplibs" + finalize_deplibs="-l$name -L$dir $finalize_deplibs" + fi + elif test yes = "$build_libtool_libs"; then + # Not a shared library + if test pass_all != "$deplibs_check_method"; then + # We're trying link a shared library against a static one + # but the system doesn't support it. + + # Just print a warning and add the library to dependency_libs so + # that the program can be linked against the static library. + echo + $ECHO "*** Warning: This system cannot link to static lib archive $lib." + echo "*** I have the capability to make that library automatically link in when" + echo "*** you link to this library. But I can only do this if you have a" + echo "*** shared version of the library, which you do not appear to have." + if test yes = "$module"; then + echo "*** But as you try to build a module library, libtool will still create " + echo "*** a static module, that should work as long as the dlopening application" + echo "*** is linked with the -dlopen flag to resolve symbols at runtime." + if test -z "$global_symbol_pipe"; then + echo + echo "*** However, this would only work if libtool was able to extract symbol" + echo "*** lists from a program, using 'nm' or equivalent, but libtool could" + echo "*** not find such a program. So, this module is probably useless." + echo "*** 'nm' from GNU binutils and a full rebuild may help." + fi + if test no = "$build_old_libs"; then + build_libtool_libs=module + build_old_libs=yes + else + build_libtool_libs=no + fi + fi + else + deplibs="$dir/$old_library $deplibs" + link_static=yes + fi + fi # link shared/static library? + + if test lib = "$linkmode"; then + if test -n "$dependency_libs" && + { test yes != "$hardcode_into_libs" || + test yes = "$build_old_libs" || + test yes = "$link_static"; }; then + # Extract -R from dependency_libs + temp_deplibs= + for libdir in $dependency_libs; do + case $libdir in + -R*) func_stripname '-R' '' "$libdir" + temp_xrpath=$func_stripname_result + case " $xrpath " in + *" $temp_xrpath "*) ;; + *) func_append xrpath " $temp_xrpath";; + esac;; + *) func_append temp_deplibs " $libdir";; + esac + done + dependency_libs=$temp_deplibs + fi + + func_append newlib_search_path " $absdir" + # Link against this library + test no = "$link_static" && newdependency_libs="$abs_ladir/$laname $newdependency_libs" + # ... and its dependency_libs + tmp_libs= + for deplib in $dependency_libs; do + newdependency_libs="$deplib $newdependency_libs" + case $deplib in + -L*) func_stripname '-L' '' "$deplib" + func_resolve_sysroot "$func_stripname_result";; + *) func_resolve_sysroot "$deplib" ;; + esac + if $opt_preserve_dup_deps; then + case "$tmp_libs " in + *" $func_resolve_sysroot_result "*) + func_append specialdeplibs " $func_resolve_sysroot_result" ;; + esac + fi + func_append tmp_libs " $func_resolve_sysroot_result" + done + + if test no != "$link_all_deplibs"; then + # Add the search paths of all dependency libraries + for deplib in $dependency_libs; do + path= + case $deplib in + -L*) path=$deplib ;; + *.la) + func_resolve_sysroot "$deplib" + deplib=$func_resolve_sysroot_result + func_dirname "$deplib" "" "." + dir=$func_dirname_result + # We need an absolute path. + case $dir in + [\\/]* | [A-Za-z]:[\\/]*) absdir=$dir ;; + *) + absdir=`cd "$dir" && pwd` + if test -z "$absdir"; then + func_warning "cannot determine absolute directory name of '$dir'" + absdir=$dir + fi + ;; + esac + if $GREP "^installed=no" $deplib > /dev/null; then + case $host in + *-*-darwin*) + depdepl= + eval deplibrary_names=`$SED -n -e 's/^library_names=\(.*\)$/\1/p' $deplib` + if test -n "$deplibrary_names"; then + for tmp in $deplibrary_names; do + depdepl=$tmp + done + if test -f "$absdir/$objdir/$depdepl"; then + depdepl=$absdir/$objdir/$depdepl + darwin_install_name=`$OTOOL -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'` + if test -z "$darwin_install_name"; then + darwin_install_name=`$OTOOL64 -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'` + fi + func_append compiler_flags " $wl-dylib_file $wl$darwin_install_name:$depdepl" + func_append linker_flags " -dylib_file $darwin_install_name:$depdepl" + path= + fi + fi + ;; + *) + path=-L$absdir/$objdir + ;; + esac + else + eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $deplib` + test -z "$libdir" && \ + func_fatal_error "'$deplib' is not a valid libtool archive" + test "$absdir" != "$libdir" && \ + func_warning "'$deplib' seems to be moved" + + path=-L$absdir + fi + ;; + esac + case " $deplibs " in + *" $path "*) ;; + *) deplibs="$path $deplibs" ;; + esac + done + fi # link_all_deplibs != no + fi # linkmode = lib + done # for deplib in $libs + if test link = "$pass"; then + if test prog = "$linkmode"; then + compile_deplibs="$new_inherited_linker_flags $compile_deplibs" + finalize_deplibs="$new_inherited_linker_flags $finalize_deplibs" + else + compiler_flags="$compiler_flags "`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` + fi + fi + dependency_libs=$newdependency_libs + if test dlpreopen = "$pass"; then + # Link the dlpreopened libraries before other libraries + for deplib in $save_deplibs; do + deplibs="$deplib $deplibs" + done + fi + if test dlopen != "$pass"; then + test conv = "$pass" || { + # Make sure lib_search_path contains only unique directories. + lib_search_path= + for dir in $newlib_search_path; do + case "$lib_search_path " in + *" $dir "*) ;; + *) func_append lib_search_path " $dir" ;; + esac + done + newlib_search_path= + } + + if test prog,link = "$linkmode,$pass"; then + vars="compile_deplibs finalize_deplibs" + else + vars=deplibs + fi + for var in $vars dependency_libs; do + # Add libraries to $var in reverse order + eval tmp_libs=\"\$$var\" + new_libs= + for deplib in $tmp_libs; do + # FIXME: Pedantically, this is the right thing to do, so + # that some nasty dependency loop isn't accidentally + # broken: + #new_libs="$deplib $new_libs" + # Pragmatically, this seems to cause very few problems in + # practice: + case $deplib in + -L*) new_libs="$deplib $new_libs" ;; + -R*) ;; + *) + # And here is the reason: when a library appears more + # than once as an explicit dependence of a library, or + # is implicitly linked in more than once by the + # compiler, it is considered special, and multiple + # occurrences thereof are not removed. Compare this + # with having the same library being listed as a + # dependency of multiple other libraries: in this case, + # we know (pedantically, we assume) the library does not + # need to be listed more than once, so we keep only the + # last copy. This is not always right, but it is rare + # enough that we require users that really mean to play + # such unportable linking tricks to link the library + # using -Wl,-lname, so that libtool does not consider it + # for duplicate removal. + case " $specialdeplibs " in + *" $deplib "*) new_libs="$deplib $new_libs" ;; + *) + case " $new_libs " in + *" $deplib "*) ;; + *) new_libs="$deplib $new_libs" ;; + esac + ;; + esac + ;; + esac + done + tmp_libs= + for deplib in $new_libs; do + case $deplib in + -L*) + case " $tmp_libs " in + *" $deplib "*) ;; + *) func_append tmp_libs " $deplib" ;; + esac + ;; + *) func_append tmp_libs " $deplib" ;; + esac + done + eval $var=\"$tmp_libs\" + done # for var + fi + + # Add Sun CC postdeps if required: + test CXX = "$tagname" && { + case $host_os in + linux*) + case `$CC -V 2>&1 | sed 5q` in + *Sun\ C*) # Sun C++ 5.9 + func_suncc_cstd_abi + + if test no != "$suncc_use_cstd_abi"; then + func_append postdeps ' -library=Cstd -library=Crun' + fi + ;; + esac + ;; + + solaris*) + func_cc_basename "$CC" + case $func_cc_basename_result in + CC* | sunCC*) + func_suncc_cstd_abi + + if test no != "$suncc_use_cstd_abi"; then + func_append postdeps ' -library=Cstd -library=Crun' + fi + ;; + esac + ;; + esac + } + + # Last step: remove runtime libs from dependency_libs + # (they stay in deplibs) + tmp_libs= + for i in $dependency_libs; do + case " $predeps $postdeps $compiler_lib_search_path " in + *" $i "*) + i= + ;; + esac + if test -n "$i"; then + func_append tmp_libs " $i" + fi + done + dependency_libs=$tmp_libs + done # for pass + if test prog = "$linkmode"; then + dlfiles=$newdlfiles + fi + if test prog = "$linkmode" || test lib = "$linkmode"; then + dlprefiles=$newdlprefiles + fi + + case $linkmode in + oldlib) + if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then + func_warning "'-dlopen' is ignored for archives" + fi + + case " $deplibs" in + *\ -l* | *\ -L*) + func_warning "'-l' and '-L' are ignored for archives" ;; + esac + + test -n "$rpath" && \ + func_warning "'-rpath' is ignored for archives" + + test -n "$xrpath" && \ + func_warning "'-R' is ignored for archives" + + test -n "$vinfo" && \ + func_warning "'-version-info/-version-number' is ignored for archives" + + test -n "$release" && \ + func_warning "'-release' is ignored for archives" + + test -n "$export_symbols$export_symbols_regex" && \ + func_warning "'-export-symbols' is ignored for archives" + + # Now set the variables for building old libraries. + build_libtool_libs=no + oldlibs=$output + func_append objs "$old_deplibs" + ;; + + lib) + # Make sure we only generate libraries of the form 'libNAME.la'. + case $outputname in + lib*) + func_stripname 'lib' '.la' "$outputname" + name=$func_stripname_result + eval shared_ext=\"$shrext_cmds\" + eval libname=\"$libname_spec\" + ;; + *) + test no = "$module" \ + && func_fatal_help "libtool library '$output' must begin with 'lib'" + + if test no != "$need_lib_prefix"; then + # Add the "lib" prefix for modules if required + func_stripname '' '.la' "$outputname" + name=$func_stripname_result + eval shared_ext=\"$shrext_cmds\" + eval libname=\"$libname_spec\" + else + func_stripname '' '.la' "$outputname" + libname=$func_stripname_result + fi + ;; + esac + + if test -n "$objs"; then + if test pass_all != "$deplibs_check_method"; then + func_fatal_error "cannot build libtool library '$output' from non-libtool objects on this host:$objs" + else + echo + $ECHO "*** Warning: Linking the shared library $output against the non-libtool" + $ECHO "*** objects $objs is not portable!" + func_append libobjs " $objs" + fi + fi + + test no = "$dlself" \ + || func_warning "'-dlopen self' is ignored for libtool libraries" + + set dummy $rpath + shift + test 1 -lt "$#" \ + && func_warning "ignoring multiple '-rpath's for a libtool library" + + install_libdir=$1 + + oldlibs= + if test -z "$rpath"; then + if test yes = "$build_libtool_libs"; then + # Building a libtool convenience library. + # Some compilers have problems with a '.al' extension so + # convenience libraries should have the same extension an + # archive normally would. + oldlibs="$output_objdir/$libname.$libext $oldlibs" + build_libtool_libs=convenience + build_old_libs=yes + fi + + test -n "$vinfo" && \ + func_warning "'-version-info/-version-number' is ignored for convenience libraries" + + test -n "$release" && \ + func_warning "'-release' is ignored for convenience libraries" + else + + # Parse the version information argument. + save_ifs=$IFS; IFS=: + set dummy $vinfo 0 0 0 + shift + IFS=$save_ifs + + test -n "$7" && \ + func_fatal_help "too many parameters to '-version-info'" + + # convert absolute version numbers to libtool ages + # this retains compatibility with .la files and attempts + # to make the code below a bit more comprehensible + + case $vinfo_number in + yes) + number_major=$1 + number_minor=$2 + number_revision=$3 + # + # There are really only two kinds -- those that + # use the current revision as the major version + # and those that subtract age and use age as + # a minor version. But, then there is irix + # that has an extra 1 added just for fun + # + case $version_type in + # correct linux to gnu/linux during the next big refactor + darwin|freebsd-elf|linux|osf|windows|none) + func_arith $number_major + $number_minor + current=$func_arith_result + age=$number_minor + revision=$number_revision + ;; + freebsd-aout|qnx|sunos) + current=$number_major + revision=$number_minor + age=0 + ;; + irix|nonstopux) + func_arith $number_major + $number_minor + current=$func_arith_result + age=$number_minor + revision=$number_minor + lt_irix_increment=no + ;; + esac + ;; + no) + current=$1 + revision=$2 + age=$3 + ;; + esac + + # Check that each of the things are valid numbers. + case $current in + 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; + *) + func_error "CURRENT '$current' must be a nonnegative integer" + func_fatal_error "'$vinfo' is not valid version information" + ;; + esac + + case $revision in + 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; + *) + func_error "REVISION '$revision' must be a nonnegative integer" + func_fatal_error "'$vinfo' is not valid version information" + ;; + esac + + case $age in + 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; + *) + func_error "AGE '$age' must be a nonnegative integer" + func_fatal_error "'$vinfo' is not valid version information" + ;; + esac + + if test "$age" -gt "$current"; then + func_error "AGE '$age' is greater than the current interface number '$current'" + func_fatal_error "'$vinfo' is not valid version information" + fi + + # Calculate the version variables. + major= + versuffix= + verstring= + case $version_type in + none) ;; + + darwin) + # Like Linux, but with the current version available in + # verstring for coding it into the library header + func_arith $current - $age + major=.$func_arith_result + versuffix=$major.$age.$revision + # Darwin ld doesn't like 0 for these options... + func_arith $current + 1 + minor_current=$func_arith_result + xlcverstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision" + verstring="-compatibility_version $minor_current -current_version $minor_current.$revision" + # On Darwin other compilers + case $CC in + nagfor*) + verstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision" + ;; + *) + verstring="-compatibility_version $minor_current -current_version $minor_current.$revision" + ;; + esac + ;; + + freebsd-aout) + major=.$current + versuffix=.$current.$revision + ;; + + freebsd-elf) + func_arith $current - $age + major=.$func_arith_result + versuffix=$major.$age.$revision + ;; + + irix | nonstopux) + if test no = "$lt_irix_increment"; then + func_arith $current - $age + else + func_arith $current - $age + 1 + fi + major=$func_arith_result + + case $version_type in + nonstopux) verstring_prefix=nonstopux ;; + *) verstring_prefix=sgi ;; + esac + verstring=$verstring_prefix$major.$revision + + # Add in all the interfaces that we are compatible with. + loop=$revision + while test 0 -ne "$loop"; do + func_arith $revision - $loop + iface=$func_arith_result + func_arith $loop - 1 + loop=$func_arith_result + verstring=$verstring_prefix$major.$iface:$verstring + done + + # Before this point, $major must not contain '.'. + major=.$major + versuffix=$major.$revision + ;; + + linux) # correct to gnu/linux during the next big refactor + func_arith $current - $age + major=.$func_arith_result + versuffix=$major.$age.$revision + ;; + + osf) + func_arith $current - $age + major=.$func_arith_result + versuffix=.$current.$age.$revision + verstring=$current.$age.$revision + + # Add in all the interfaces that we are compatible with. + loop=$age + while test 0 -ne "$loop"; do + func_arith $current - $loop + iface=$func_arith_result + func_arith $loop - 1 + loop=$func_arith_result + verstring=$verstring:$iface.0 + done + + # Make executables depend on our current version. + func_append verstring ":$current.0" + ;; + + qnx) + major=.$current + versuffix=.$current + ;; + + sco) + major=.$current + versuffix=.$current + ;; + + sunos) + major=.$current + versuffix=.$current.$revision + ;; + + windows) + # Use '-' rather than '.', since we only want one + # extension on DOS 8.3 file systems. + func_arith $current - $age + major=$func_arith_result + versuffix=-$major + ;; + + *) + func_fatal_configuration "unknown library version type '$version_type'" + ;; + esac + + # Clear the version info if we defaulted, and they specified a release. + if test -z "$vinfo" && test -n "$release"; then + major= + case $version_type in + darwin) + # we can't check for "0.0" in archive_cmds due to quoting + # problems, so we reset it completely + verstring= + ;; + *) + verstring=0.0 + ;; + esac + if test no = "$need_version"; then + versuffix= + else + versuffix=.0.0 + fi + fi + + # Remove version info from name if versioning should be avoided + if test yes,no = "$avoid_version,$need_version"; then + major= + versuffix= + verstring= + fi + + # Check to see if the archive will have undefined symbols. + if test yes = "$allow_undefined"; then + if test unsupported = "$allow_undefined_flag"; then + if test yes = "$build_old_libs"; then + func_warning "undefined symbols not allowed in $host shared libraries; building static only" + build_libtool_libs=no + else + func_fatal_error "can't build $host shared library unless -no-undefined is specified" + fi + fi + else + # Don't allow undefined symbols. + allow_undefined_flag=$no_undefined_flag + fi + + fi + + func_generate_dlsyms "$libname" "$libname" : + func_append libobjs " $symfileobj" + test " " = "$libobjs" && libobjs= + + if test relink != "$opt_mode"; then + # Remove our outputs, but don't remove object files since they + # may have been created when compiling PIC objects. + removelist= + tempremovelist=`$ECHO "$output_objdir/*"` + for p in $tempremovelist; do + case $p in + *.$objext | *.gcno) + ;; + $output_objdir/$outputname | $output_objdir/$libname.* | $output_objdir/$libname$release.*) + if test -n "$precious_files_regex"; then + if $ECHO "$p" | $EGREP -e "$precious_files_regex" >/dev/null 2>&1 + then + continue + fi + fi + func_append removelist " $p" + ;; + *) ;; + esac + done + test -n "$removelist" && \ + func_show_eval "${RM}r \$removelist" + fi + + # Now set the variables for building old libraries. + if test yes = "$build_old_libs" && test convenience != "$build_libtool_libs"; then + func_append oldlibs " $output_objdir/$libname.$libext" + + # Transform .lo files to .o files. + oldobjs="$objs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.$libext$/d; $lo2o" | $NL2SP` + fi + + # Eliminate all temporary directories. + #for path in $notinst_path; do + # lib_search_path=`$ECHO "$lib_search_path " | $SED "s% $path % %g"` + # deplibs=`$ECHO "$deplibs " | $SED "s% -L$path % %g"` + # dependency_libs=`$ECHO "$dependency_libs " | $SED "s% -L$path % %g"` + #done + + if test -n "$xrpath"; then + # If the user specified any rpath flags, then add them. + temp_xrpath= + for libdir in $xrpath; do + func_replace_sysroot "$libdir" + func_append temp_xrpath " -R$func_replace_sysroot_result" + case "$finalize_rpath " in + *" $libdir "*) ;; + *) func_append finalize_rpath " $libdir" ;; + esac + done + if test yes != "$hardcode_into_libs" || test yes = "$build_old_libs"; then + dependency_libs="$temp_xrpath $dependency_libs" + fi + fi + + # Make sure dlfiles contains only unique files that won't be dlpreopened + old_dlfiles=$dlfiles + dlfiles= + for lib in $old_dlfiles; do + case " $dlprefiles $dlfiles " in + *" $lib "*) ;; + *) func_append dlfiles " $lib" ;; + esac + done + + # Make sure dlprefiles contains only unique files + old_dlprefiles=$dlprefiles + dlprefiles= + for lib in $old_dlprefiles; do + case "$dlprefiles " in + *" $lib "*) ;; + *) func_append dlprefiles " $lib" ;; + esac + done + + if test yes = "$build_libtool_libs"; then + if test -n "$rpath"; then + case $host in + *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-beos* | *-cegcc* | *-*-haiku*) + # these systems don't actually have a c library (as such)! + ;; + *-*-rhapsody* | *-*-darwin1.[012]) + # Rhapsody C library is in the System framework + func_append deplibs " System.ltframework" + ;; + *-*-netbsd*) + # Don't link with libc until the a.out ld.so is fixed. + ;; + *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*) + # Do not include libc due to us having libc/libc_r. + ;; + *-*-sco3.2v5* | *-*-sco5v6*) + # Causes problems with __ctype + ;; + *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*) + # Compiler inserts libc in the correct place for threads to work + ;; + *) + # Add libc to deplibs on all other systems if necessary. + if test yes = "$build_libtool_need_lc"; then + func_append deplibs " -lc" + fi + ;; + esac + fi + + # Transform deplibs into only deplibs that can be linked in shared. + name_save=$name + libname_save=$libname + release_save=$release + versuffix_save=$versuffix + major_save=$major + # I'm not sure if I'm treating the release correctly. I think + # release should show up in the -l (ie -lgmp5) so we don't want to + # add it in twice. Is that correct? + release= + versuffix= + major= + newdeplibs= + droppeddeps=no + case $deplibs_check_method in + pass_all) + # Don't check for shared/static. Everything works. + # This might be a little naive. We might want to check + # whether the library exists or not. But this is on + # osf3 & osf4 and I'm not really sure... Just + # implementing what was already the behavior. + newdeplibs=$deplibs + ;; + test_compile) + # This code stresses the "libraries are programs" paradigm to its + # limits. Maybe even breaks it. We compile a program, linking it + # against the deplibs as a proxy for the library. Then we can check + # whether they linked in statically or dynamically with ldd. + $opt_dry_run || $RM conftest.c + cat > conftest.c </dev/null` + $nocaseglob + else + potential_libs=`ls $i/$libnameglob[.-]* 2>/dev/null` + fi + for potent_lib in $potential_libs; do + # Follow soft links. + if ls -lLd "$potent_lib" 2>/dev/null | + $GREP " -> " >/dev/null; then + continue + fi + # The statement above tries to avoid entering an + # endless loop below, in case of cyclic links. + # We might still enter an endless loop, since a link + # loop can be closed while we follow links, + # but so what? + potlib=$potent_lib + while test -h "$potlib" 2>/dev/null; do + potliblink=`ls -ld $potlib | $SED 's/.* -> //'` + case $potliblink in + [\\/]* | [A-Za-z]:[\\/]*) potlib=$potliblink;; + *) potlib=`$ECHO "$potlib" | $SED 's|[^/]*$||'`"$potliblink";; + esac + done + if eval $file_magic_cmd \"\$potlib\" 2>/dev/null | + $SED -e 10q | + $EGREP "$file_magic_regex" > /dev/null; then + func_append newdeplibs " $a_deplib" + a_deplib= + break 2 + fi + done + done + fi + if test -n "$a_deplib"; then + droppeddeps=yes + echo + $ECHO "*** Warning: linker path does not have real file for library $a_deplib." + echo "*** I have the capability to make that library automatically link in when" + echo "*** you link to this library. But I can only do this if you have a" + echo "*** shared version of the library, which you do not appear to have" + echo "*** because I did check the linker path looking for a file starting" + if test -z "$potlib"; then + $ECHO "*** with $libname but no candidates were found. (...for file magic test)" + else + $ECHO "*** with $libname and none of the candidates passed a file format test" + $ECHO "*** using a file magic. Last file checked: $potlib" + fi + fi + ;; + *) + # Add a -L argument. + func_append newdeplibs " $a_deplib" + ;; + esac + done # Gone through all deplibs. + ;; + match_pattern*) + set dummy $deplibs_check_method; shift + match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"` + for a_deplib in $deplibs; do + case $a_deplib in + -l*) + func_stripname -l '' "$a_deplib" + name=$func_stripname_result + if test yes = "$allow_libtool_libs_with_static_runtimes"; then + case " $predeps $postdeps " in + *" $a_deplib "*) + func_append newdeplibs " $a_deplib" + a_deplib= + ;; + esac + fi + if test -n "$a_deplib"; then + libname=`eval "\\$ECHO \"$libname_spec\""` + for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do + potential_libs=`ls $i/$libname[.-]* 2>/dev/null` + for potent_lib in $potential_libs; do + potlib=$potent_lib # see symlink-check above in file_magic test + if eval "\$ECHO \"$potent_lib\"" 2>/dev/null | $SED 10q | \ + $EGREP "$match_pattern_regex" > /dev/null; then + func_append newdeplibs " $a_deplib" + a_deplib= + break 2 + fi + done + done + fi + if test -n "$a_deplib"; then + droppeddeps=yes + echo + $ECHO "*** Warning: linker path does not have real file for library $a_deplib." + echo "*** I have the capability to make that library automatically link in when" + echo "*** you link to this library. But I can only do this if you have a" + echo "*** shared version of the library, which you do not appear to have" + echo "*** because I did check the linker path looking for a file starting" + if test -z "$potlib"; then + $ECHO "*** with $libname but no candidates were found. (...for regex pattern test)" + else + $ECHO "*** with $libname and none of the candidates passed a file format test" + $ECHO "*** using a regex pattern. Last file checked: $potlib" + fi + fi + ;; + *) + # Add a -L argument. + func_append newdeplibs " $a_deplib" + ;; + esac + done # Gone through all deplibs. + ;; + none | unknown | *) + newdeplibs= + tmp_deplibs=`$ECHO " $deplibs" | $SED 's/ -lc$//; s/ -[LR][^ ]*//g'` + if test yes = "$allow_libtool_libs_with_static_runtimes"; then + for i in $predeps $postdeps; do + # can't use Xsed below, because $i might contain '/' + tmp_deplibs=`$ECHO " $tmp_deplibs" | $SED "s|$i||"` + done + fi + case $tmp_deplibs in + *[!\ \ ]*) + echo + if test none = "$deplibs_check_method"; then + echo "*** Warning: inter-library dependencies are not supported in this platform." + else + echo "*** Warning: inter-library dependencies are not known to be supported." + fi + echo "*** All declared inter-library dependencies are being dropped." + droppeddeps=yes + ;; + esac + ;; + esac + versuffix=$versuffix_save + major=$major_save + release=$release_save + libname=$libname_save + name=$name_save + + case $host in + *-*-rhapsody* | *-*-darwin1.[012]) + # On Rhapsody replace the C library with the System framework + newdeplibs=`$ECHO " $newdeplibs" | $SED 's/ -lc / System.ltframework /'` + ;; + esac + + if test yes = "$droppeddeps"; then + if test yes = "$module"; then + echo + echo "*** Warning: libtool could not satisfy all declared inter-library" + $ECHO "*** dependencies of module $libname. Therefore, libtool will create" + echo "*** a static module, that should work as long as the dlopening" + echo "*** application is linked with the -dlopen flag." + if test -z "$global_symbol_pipe"; then + echo + echo "*** However, this would only work if libtool was able to extract symbol" + echo "*** lists from a program, using 'nm' or equivalent, but libtool could" + echo "*** not find such a program. So, this module is probably useless." + echo "*** 'nm' from GNU binutils and a full rebuild may help." + fi + if test no = "$build_old_libs"; then + oldlibs=$output_objdir/$libname.$libext + build_libtool_libs=module + build_old_libs=yes + else + build_libtool_libs=no + fi + else + echo "*** The inter-library dependencies that have been dropped here will be" + echo "*** automatically added whenever a program is linked with this library" + echo "*** or is declared to -dlopen it." + + if test no = "$allow_undefined"; then + echo + echo "*** Since this library must not contain undefined symbols," + echo "*** because either the platform does not support them or" + echo "*** it was explicitly requested with -no-undefined," + echo "*** libtool will only create a static version of it." + if test no = "$build_old_libs"; then + oldlibs=$output_objdir/$libname.$libext + build_libtool_libs=module + build_old_libs=yes + else + build_libtool_libs=no + fi + fi + fi + fi + # Done checking deplibs! + deplibs=$newdeplibs + fi + # Time to change all our "foo.ltframework" stuff back to "-framework foo" + case $host in + *-*-darwin*) + newdeplibs=`$ECHO " $newdeplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` + new_inherited_linker_flags=`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` + deplibs=`$ECHO " $deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` + ;; + esac + + # move library search paths that coincide with paths to not yet + # installed libraries to the beginning of the library search list + new_libs= + for path in $notinst_path; do + case " $new_libs " in + *" -L$path/$objdir "*) ;; + *) + case " $deplibs " in + *" -L$path/$objdir "*) + func_append new_libs " -L$path/$objdir" ;; + esac + ;; + esac + done + for deplib in $deplibs; do + case $deplib in + -L*) + case " $new_libs " in + *" $deplib "*) ;; + *) func_append new_libs " $deplib" ;; + esac + ;; + *) func_append new_libs " $deplib" ;; + esac + done + deplibs=$new_libs + + # All the library-specific variables (install_libdir is set above). + library_names= + old_library= + dlname= + + # Test again, we may have decided not to build it any more + if test yes = "$build_libtool_libs"; then + # Remove $wl instances when linking with ld. + # FIXME: should test the right _cmds variable. + case $archive_cmds in + *\$LD\ *) wl= ;; + esac + if test yes = "$hardcode_into_libs"; then + # Hardcode the library paths + hardcode_libdirs= + dep_rpath= + rpath=$finalize_rpath + test relink = "$opt_mode" || rpath=$compile_rpath$rpath + for libdir in $rpath; do + if test -n "$hardcode_libdir_flag_spec"; then + if test -n "$hardcode_libdir_separator"; then + func_replace_sysroot "$libdir" + libdir=$func_replace_sysroot_result + if test -z "$hardcode_libdirs"; then + hardcode_libdirs=$libdir + else + # Just accumulate the unique libdirs. + case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in + *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) + ;; + *) + func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" + ;; + esac + fi + else + eval flag=\"$hardcode_libdir_flag_spec\" + func_append dep_rpath " $flag" + fi + elif test -n "$runpath_var"; then + case "$perm_rpath " in + *" $libdir "*) ;; + *) func_append perm_rpath " $libdir" ;; + esac + fi + done + # Substitute the hardcoded libdirs into the rpath. + if test -n "$hardcode_libdir_separator" && + test -n "$hardcode_libdirs"; then + libdir=$hardcode_libdirs + eval "dep_rpath=\"$hardcode_libdir_flag_spec\"" + fi + if test -n "$runpath_var" && test -n "$perm_rpath"; then + # We should set the runpath_var. + rpath= + for dir in $perm_rpath; do + func_append rpath "$dir:" + done + eval "$runpath_var='$rpath\$$runpath_var'; export $runpath_var" + fi + test -n "$dep_rpath" && deplibs="$dep_rpath $deplibs" + fi + + shlibpath=$finalize_shlibpath + test relink = "$opt_mode" || shlibpath=$compile_shlibpath$shlibpath + if test -n "$shlibpath"; then + eval "$shlibpath_var='$shlibpath\$$shlibpath_var'; export $shlibpath_var" + fi + + # Get the real and link names of the library. + eval shared_ext=\"$shrext_cmds\" + eval library_names=\"$library_names_spec\" + set dummy $library_names + shift + realname=$1 + shift + + if test -n "$soname_spec"; then + eval soname=\"$soname_spec\" + else + soname=$realname + fi + if test -z "$dlname"; then + dlname=$soname + fi + + lib=$output_objdir/$realname + linknames= + for link + do + func_append linknames " $link" + done + + # Use standard objects if they are pic + test -z "$pic_flag" && libobjs=`$ECHO "$libobjs" | $SP2NL | $SED "$lo2o" | $NL2SP` + test "X$libobjs" = "X " && libobjs= + + delfiles= + if test -n "$export_symbols" && test -n "$include_expsyms"; then + $opt_dry_run || cp "$export_symbols" "$output_objdir/$libname.uexp" + export_symbols=$output_objdir/$libname.uexp + func_append delfiles " $export_symbols" + fi + + orig_export_symbols= + case $host_os in + cygwin* | mingw* | cegcc*) + if test -n "$export_symbols" && test -z "$export_symbols_regex"; then + # exporting using user supplied symfile + func_dll_def_p "$export_symbols" || { + # and it's NOT already a .def file. Must figure out + # which of the given symbols are data symbols and tag + # them as such. So, trigger use of export_symbols_cmds. + # export_symbols gets reassigned inside the "prepare + # the list of exported symbols" if statement, so the + # include_expsyms logic still works. + orig_export_symbols=$export_symbols + export_symbols= + always_export_symbols=yes + } + fi + ;; + esac + + # Prepare the list of exported symbols + if test -z "$export_symbols"; then + if test yes = "$always_export_symbols" || test -n "$export_symbols_regex"; then + func_verbose "generating symbol list for '$libname.la'" + export_symbols=$output_objdir/$libname.exp + $opt_dry_run || $RM $export_symbols + cmds=$export_symbols_cmds + save_ifs=$IFS; IFS='~' + for cmd1 in $cmds; do + IFS=$save_ifs + # Take the normal branch if the nm_file_list_spec branch + # doesn't work or if tool conversion is not needed. + case $nm_file_list_spec~$to_tool_file_cmd in + *~func_convert_file_noop | *~func_convert_file_msys_to_w32 | ~*) + try_normal_branch=yes + eval cmd=\"$cmd1\" + func_len " $cmd" + len=$func_len_result + ;; + *) + try_normal_branch=no + ;; + esac + if test yes = "$try_normal_branch" \ + && { test "$len" -lt "$max_cmd_len" \ + || test "$max_cmd_len" -le -1; } + then + func_show_eval "$cmd" 'exit $?' + skipped_export=false + elif test -n "$nm_file_list_spec"; then + func_basename "$output" + output_la=$func_basename_result + save_libobjs=$libobjs + save_output=$output + output=$output_objdir/$output_la.nm + func_to_tool_file "$output" + libobjs=$nm_file_list_spec$func_to_tool_file_result + func_append delfiles " $output" + func_verbose "creating $NM input file list: $output" + for obj in $save_libobjs; do + func_to_tool_file "$obj" + $ECHO "$func_to_tool_file_result" + done > "$output" + eval cmd=\"$cmd1\" + func_show_eval "$cmd" 'exit $?' + output=$save_output + libobjs=$save_libobjs + skipped_export=false + else + # The command line is too long to execute in one step. + func_verbose "using reloadable object file for export list..." + skipped_export=: + # Break out early, otherwise skipped_export may be + # set to false by a later but shorter cmd. + break + fi + done + IFS=$save_ifs + if test -n "$export_symbols_regex" && test : != "$skipped_export"; then + func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"' + func_show_eval '$MV "${export_symbols}T" "$export_symbols"' + fi + fi + fi + + if test -n "$export_symbols" && test -n "$include_expsyms"; then + tmp_export_symbols=$export_symbols + test -n "$orig_export_symbols" && tmp_export_symbols=$orig_export_symbols + $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"' + fi + + if test : != "$skipped_export" && test -n "$orig_export_symbols"; then + # The given exports_symbols file has to be filtered, so filter it. + func_verbose "filter symbol list for '$libname.la' to tag DATA exports" + # FIXME: $output_objdir/$libname.filter potentially contains lots of + # 's' commands, which not all seds can handle. GNU sed should be fine + # though. Also, the filter scales superlinearly with the number of + # global variables. join(1) would be nice here, but unfortunately + # isn't a blessed tool. + $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter + func_append delfiles " $export_symbols $output_objdir/$libname.filter" + export_symbols=$output_objdir/$libname.def + $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols + fi + + tmp_deplibs= + for test_deplib in $deplibs; do + case " $convenience " in + *" $test_deplib "*) ;; + *) + func_append tmp_deplibs " $test_deplib" + ;; + esac + done + deplibs=$tmp_deplibs + + if test -n "$convenience"; then + if test -n "$whole_archive_flag_spec" && + test yes = "$compiler_needs_object" && + test -z "$libobjs"; then + # extract the archives, so we have objects to list. + # TODO: could optimize this to just extract one archive. + whole_archive_flag_spec= + fi + if test -n "$whole_archive_flag_spec"; then + save_libobjs=$libobjs + eval libobjs=\"\$libobjs $whole_archive_flag_spec\" + test "X$libobjs" = "X " && libobjs= + else + gentop=$output_objdir/${outputname}x + func_append generated " $gentop" + + func_extract_archives $gentop $convenience + func_append libobjs " $func_extract_archives_result" + test "X$libobjs" = "X " && libobjs= + fi + fi + + if test yes = "$thread_safe" && test -n "$thread_safe_flag_spec"; then + eval flag=\"$thread_safe_flag_spec\" + func_append linker_flags " $flag" + fi + + # Make a backup of the uninstalled library when relinking + if test relink = "$opt_mode"; then + $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}U && $MV $realname ${realname}U)' || exit $? + fi + + # Do each of the archive commands. + if test yes = "$module" && test -n "$module_cmds"; then + if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then + eval test_cmds=\"$module_expsym_cmds\" + cmds=$module_expsym_cmds + else + eval test_cmds=\"$module_cmds\" + cmds=$module_cmds + fi + else + if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then + eval test_cmds=\"$archive_expsym_cmds\" + cmds=$archive_expsym_cmds + else + eval test_cmds=\"$archive_cmds\" + cmds=$archive_cmds + fi + fi + + if test : != "$skipped_export" && + func_len " $test_cmds" && + len=$func_len_result && + test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then + : + else + # The command line is too long to link in one step, link piecewise + # or, if using GNU ld and skipped_export is not :, use a linker + # script. + + # Save the value of $output and $libobjs because we want to + # use them later. If we have whole_archive_flag_spec, we + # want to use save_libobjs as it was before + # whole_archive_flag_spec was expanded, because we can't + # assume the linker understands whole_archive_flag_spec. + # This may have to be revisited, in case too many + # convenience libraries get linked in and end up exceeding + # the spec. + if test -z "$convenience" || test -z "$whole_archive_flag_spec"; then + save_libobjs=$libobjs + fi + save_output=$output + func_basename "$output" + output_la=$func_basename_result + + # Clear the reloadable object creation command queue and + # initialize k to one. + test_cmds= + concat_cmds= + objlist= + last_robj= + k=1 + + if test -n "$save_libobjs" && test : != "$skipped_export" && test yes = "$with_gnu_ld"; then + output=$output_objdir/$output_la.lnkscript + func_verbose "creating GNU ld script: $output" + echo 'INPUT (' > $output + for obj in $save_libobjs + do + func_to_tool_file "$obj" + $ECHO "$func_to_tool_file_result" >> $output + done + echo ')' >> $output + func_append delfiles " $output" + func_to_tool_file "$output" + output=$func_to_tool_file_result + elif test -n "$save_libobjs" && test : != "$skipped_export" && test -n "$file_list_spec"; then + output=$output_objdir/$output_la.lnk + func_verbose "creating linker input file list: $output" + : > $output + set x $save_libobjs + shift + firstobj= + if test yes = "$compiler_needs_object"; then + firstobj="$1 " + shift + fi + for obj + do + func_to_tool_file "$obj" + $ECHO "$func_to_tool_file_result" >> $output + done + func_append delfiles " $output" + func_to_tool_file "$output" + output=$firstobj\"$file_list_spec$func_to_tool_file_result\" + else + if test -n "$save_libobjs"; then + func_verbose "creating reloadable object files..." + output=$output_objdir/$output_la-$k.$objext + eval test_cmds=\"$reload_cmds\" + func_len " $test_cmds" + len0=$func_len_result + len=$len0 + + # Loop over the list of objects to be linked. + for obj in $save_libobjs + do + func_len " $obj" + func_arith $len + $func_len_result + len=$func_arith_result + if test -z "$objlist" || + test "$len" -lt "$max_cmd_len"; then + func_append objlist " $obj" + else + # The command $test_cmds is almost too long, add a + # command to the queue. + if test 1 -eq "$k"; then + # The first file doesn't have a previous command to add. + reload_objs=$objlist + eval concat_cmds=\"$reload_cmds\" + else + # All subsequent reloadable object files will link in + # the last one created. + reload_objs="$objlist $last_robj" + eval concat_cmds=\"\$concat_cmds~$reload_cmds~\$RM $last_robj\" + fi + last_robj=$output_objdir/$output_la-$k.$objext + func_arith $k + 1 + k=$func_arith_result + output=$output_objdir/$output_la-$k.$objext + objlist=" $obj" + func_len " $last_robj" + func_arith $len0 + $func_len_result + len=$func_arith_result + fi + done + # Handle the remaining objects by creating one last + # reloadable object file. All subsequent reloadable object + # files will link in the last one created. + test -z "$concat_cmds" || concat_cmds=$concat_cmds~ + reload_objs="$objlist $last_robj" + eval concat_cmds=\"\$concat_cmds$reload_cmds\" + if test -n "$last_robj"; then + eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\" + fi + func_append delfiles " $output" + + else + output= + fi + + ${skipped_export-false} && { + func_verbose "generating symbol list for '$libname.la'" + export_symbols=$output_objdir/$libname.exp + $opt_dry_run || $RM $export_symbols + libobjs=$output + # Append the command to create the export file. + test -z "$concat_cmds" || concat_cmds=$concat_cmds~ + eval concat_cmds=\"\$concat_cmds$export_symbols_cmds\" + if test -n "$last_robj"; then + eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\" + fi + } + + test -n "$save_libobjs" && + func_verbose "creating a temporary reloadable object file: $output" + + # Loop through the commands generated above and execute them. + save_ifs=$IFS; IFS='~' + for cmd in $concat_cmds; do + IFS=$save_ifs + $opt_quiet || { + func_quote_for_expand "$cmd" + eval "func_echo $func_quote_for_expand_result" + } + $opt_dry_run || eval "$cmd" || { + lt_exit=$? + + # Restore the uninstalled library and exit + if test relink = "$opt_mode"; then + ( cd "$output_objdir" && \ + $RM "${realname}T" && \ + $MV "${realname}U" "$realname" ) + fi + + exit $lt_exit + } + done + IFS=$save_ifs + + if test -n "$export_symbols_regex" && ${skipped_export-false}; then + func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"' + func_show_eval '$MV "${export_symbols}T" "$export_symbols"' + fi + fi + + ${skipped_export-false} && { + if test -n "$export_symbols" && test -n "$include_expsyms"; then + tmp_export_symbols=$export_symbols + test -n "$orig_export_symbols" && tmp_export_symbols=$orig_export_symbols + $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"' + fi + + if test -n "$orig_export_symbols"; then + # The given exports_symbols file has to be filtered, so filter it. + func_verbose "filter symbol list for '$libname.la' to tag DATA exports" + # FIXME: $output_objdir/$libname.filter potentially contains lots of + # 's' commands, which not all seds can handle. GNU sed should be fine + # though. Also, the filter scales superlinearly with the number of + # global variables. join(1) would be nice here, but unfortunately + # isn't a blessed tool. + $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter + func_append delfiles " $export_symbols $output_objdir/$libname.filter" + export_symbols=$output_objdir/$libname.def + $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols + fi + } + + libobjs=$output + # Restore the value of output. + output=$save_output + + if test -n "$convenience" && test -n "$whole_archive_flag_spec"; then + eval libobjs=\"\$libobjs $whole_archive_flag_spec\" + test "X$libobjs" = "X " && libobjs= + fi + # Expand the library linking commands again to reset the + # value of $libobjs for piecewise linking. + + # Do each of the archive commands. + if test yes = "$module" && test -n "$module_cmds"; then + if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then + cmds=$module_expsym_cmds + else + cmds=$module_cmds + fi + else + if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then + cmds=$archive_expsym_cmds + else + cmds=$archive_cmds + fi + fi + fi + + if test -n "$delfiles"; then + # Append the command to remove temporary files to $cmds. + eval cmds=\"\$cmds~\$RM $delfiles\" + fi + + # Add any objects from preloaded convenience libraries + if test -n "$dlprefiles"; then + gentop=$output_objdir/${outputname}x + func_append generated " $gentop" + + func_extract_archives $gentop $dlprefiles + func_append libobjs " $func_extract_archives_result" + test "X$libobjs" = "X " && libobjs= + fi + + save_ifs=$IFS; IFS='~' + for cmd in $cmds; do + IFS=$sp$nl + eval cmd=\"$cmd\" + IFS=$save_ifs + $opt_quiet || { + func_quote_for_expand "$cmd" + eval "func_echo $func_quote_for_expand_result" + } + $opt_dry_run || eval "$cmd" || { + lt_exit=$? + + # Restore the uninstalled library and exit + if test relink = "$opt_mode"; then + ( cd "$output_objdir" && \ + $RM "${realname}T" && \ + $MV "${realname}U" "$realname" ) + fi + + exit $lt_exit + } + done + IFS=$save_ifs + + # Restore the uninstalled library and exit + if test relink = "$opt_mode"; then + $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}T && $MV $realname ${realname}T && $MV ${realname}U $realname)' || exit $? + + if test -n "$convenience"; then + if test -z "$whole_archive_flag_spec"; then + func_show_eval '${RM}r "$gentop"' + fi + fi + + exit $EXIT_SUCCESS + fi + + # Create links to the real library. + for linkname in $linknames; do + if test "$realname" != "$linkname"; then + func_show_eval '(cd "$output_objdir" && $RM "$linkname" && $LN_S "$realname" "$linkname")' 'exit $?' + fi + done + + # If -module or -export-dynamic was specified, set the dlname. + if test yes = "$module" || test yes = "$export_dynamic"; then + # On all known operating systems, these are identical. + dlname=$soname + fi + fi + ;; + + obj) + if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then + func_warning "'-dlopen' is ignored for objects" + fi + + case " $deplibs" in + *\ -l* | *\ -L*) + func_warning "'-l' and '-L' are ignored for objects" ;; + esac + + test -n "$rpath" && \ + func_warning "'-rpath' is ignored for objects" + + test -n "$xrpath" && \ + func_warning "'-R' is ignored for objects" + + test -n "$vinfo" && \ + func_warning "'-version-info' is ignored for objects" + + test -n "$release" && \ + func_warning "'-release' is ignored for objects" + + case $output in + *.lo) + test -n "$objs$old_deplibs" && \ + func_fatal_error "cannot build library object '$output' from non-libtool objects" + + libobj=$output + func_lo2o "$libobj" + obj=$func_lo2o_result + ;; + *) + libobj= + obj=$output + ;; + esac + + # Delete the old objects. + $opt_dry_run || $RM $obj $libobj + + # Objects from convenience libraries. This assumes + # single-version convenience libraries. Whenever we create + # different ones for PIC/non-PIC, this we'll have to duplicate + # the extraction. + reload_conv_objs= + gentop= + # if reload_cmds runs $LD directly, get rid of -Wl from + # whole_archive_flag_spec and hope we can get by with turning comma + # into space. + case $reload_cmds in + *\$LD[\ \$]*) wl= ;; + esac + if test -n "$convenience"; then + if test -n "$whole_archive_flag_spec"; then + eval tmp_whole_archive_flags=\"$whole_archive_flag_spec\" + test -n "$wl" || tmp_whole_archive_flags=`$ECHO "$tmp_whole_archive_flags" | $SED 's|,| |g'` + reload_conv_objs=$reload_objs\ $tmp_whole_archive_flags + else + gentop=$output_objdir/${obj}x + func_append generated " $gentop" + + func_extract_archives $gentop $convenience + reload_conv_objs="$reload_objs $func_extract_archives_result" + fi + fi + + # If we're not building shared, we need to use non_pic_objs + test yes = "$build_libtool_libs" || libobjs=$non_pic_objects + + # Create the old-style object. + reload_objs=$objs$old_deplibs' '`$ECHO "$libobjs" | $SP2NL | $SED "/\.$libext$/d; /\.lib$/d; $lo2o" | $NL2SP`' '$reload_conv_objs + + output=$obj + func_execute_cmds "$reload_cmds" 'exit $?' + + # Exit if we aren't doing a library object file. + if test -z "$libobj"; then + if test -n "$gentop"; then + func_show_eval '${RM}r "$gentop"' + fi + + exit $EXIT_SUCCESS + fi + + test yes = "$build_libtool_libs" || { + if test -n "$gentop"; then + func_show_eval '${RM}r "$gentop"' + fi + + # Create an invalid libtool object if no PIC, so that we don't + # accidentally link it into a program. + # $show "echo timestamp > $libobj" + # $opt_dry_run || eval "echo timestamp > $libobj" || exit $? + exit $EXIT_SUCCESS + } + + if test -n "$pic_flag" || test default != "$pic_mode"; then + # Only do commands if we really have different PIC objects. + reload_objs="$libobjs $reload_conv_objs" + output=$libobj + func_execute_cmds "$reload_cmds" 'exit $?' + fi + + if test -n "$gentop"; then + func_show_eval '${RM}r "$gentop"' + fi + + exit $EXIT_SUCCESS + ;; + + prog) + case $host in + *cygwin*) func_stripname '' '.exe' "$output" + output=$func_stripname_result.exe;; + esac + test -n "$vinfo" && \ + func_warning "'-version-info' is ignored for programs" + + test -n "$release" && \ + func_warning "'-release' is ignored for programs" + + $preload \ + && test unknown,unknown,unknown = "$dlopen_support,$dlopen_self,$dlopen_self_static" \ + && func_warning "'LT_INIT([dlopen])' not used. Assuming no dlopen support." + + case $host in + *-*-rhapsody* | *-*-darwin1.[012]) + # On Rhapsody replace the C library is the System framework + compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's/ -lc / System.ltframework /'` + finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's/ -lc / System.ltframework /'` + ;; + esac + + case $host in + *-*-darwin*) + # Don't allow lazy linking, it breaks C++ global constructors + # But is supposedly fixed on 10.4 or later (yay!). + if test CXX = "$tagname"; then + case ${MACOSX_DEPLOYMENT_TARGET-10.0} in + 10.[0123]) + func_append compile_command " $wl-bind_at_load" + func_append finalize_command " $wl-bind_at_load" + ;; + esac + fi + # Time to change all our "foo.ltframework" stuff back to "-framework foo" + compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` + finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` + ;; + esac + + + # move library search paths that coincide with paths to not yet + # installed libraries to the beginning of the library search list + new_libs= + for path in $notinst_path; do + case " $new_libs " in + *" -L$path/$objdir "*) ;; + *) + case " $compile_deplibs " in + *" -L$path/$objdir "*) + func_append new_libs " -L$path/$objdir" ;; + esac + ;; + esac + done + for deplib in $compile_deplibs; do + case $deplib in + -L*) + case " $new_libs " in + *" $deplib "*) ;; + *) func_append new_libs " $deplib" ;; + esac + ;; + *) func_append new_libs " $deplib" ;; + esac + done + compile_deplibs=$new_libs + + + func_append compile_command " $compile_deplibs" + func_append finalize_command " $finalize_deplibs" + + if test -n "$rpath$xrpath"; then + # If the user specified any rpath flags, then add them. + for libdir in $rpath $xrpath; do + # This is the magic to use -rpath. + case "$finalize_rpath " in + *" $libdir "*) ;; + *) func_append finalize_rpath " $libdir" ;; + esac + done + fi + + # Now hardcode the library paths + rpath= + hardcode_libdirs= + for libdir in $compile_rpath $finalize_rpath; do + if test -n "$hardcode_libdir_flag_spec"; then + if test -n "$hardcode_libdir_separator"; then + if test -z "$hardcode_libdirs"; then + hardcode_libdirs=$libdir + else + # Just accumulate the unique libdirs. + case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in + *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) + ;; + *) + func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" + ;; + esac + fi + else + eval flag=\"$hardcode_libdir_flag_spec\" + func_append rpath " $flag" + fi + elif test -n "$runpath_var"; then + case "$perm_rpath " in + *" $libdir "*) ;; + *) func_append perm_rpath " $libdir" ;; + esac + fi + case $host in + *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*) + testbindir=`$ECHO "$libdir" | $SED -e 's*/lib$*/bin*'` + case :$dllsearchpath: in + *":$libdir:"*) ;; + ::) dllsearchpath=$libdir;; + *) func_append dllsearchpath ":$libdir";; + esac + case :$dllsearchpath: in + *":$testbindir:"*) ;; + ::) dllsearchpath=$testbindir;; + *) func_append dllsearchpath ":$testbindir";; + esac + ;; + esac + done + # Substitute the hardcoded libdirs into the rpath. + if test -n "$hardcode_libdir_separator" && + test -n "$hardcode_libdirs"; then + libdir=$hardcode_libdirs + eval rpath=\" $hardcode_libdir_flag_spec\" + fi + compile_rpath=$rpath + + rpath= + hardcode_libdirs= + for libdir in $finalize_rpath; do + if test -n "$hardcode_libdir_flag_spec"; then + if test -n "$hardcode_libdir_separator"; then + if test -z "$hardcode_libdirs"; then + hardcode_libdirs=$libdir + else + # Just accumulate the unique libdirs. + case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in + *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) + ;; + *) + func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" + ;; + esac + fi + else + eval flag=\"$hardcode_libdir_flag_spec\" + func_append rpath " $flag" + fi + elif test -n "$runpath_var"; then + case "$finalize_perm_rpath " in + *" $libdir "*) ;; + *) func_append finalize_perm_rpath " $libdir" ;; + esac + fi + done + # Substitute the hardcoded libdirs into the rpath. + if test -n "$hardcode_libdir_separator" && + test -n "$hardcode_libdirs"; then + libdir=$hardcode_libdirs + eval rpath=\" $hardcode_libdir_flag_spec\" + fi + finalize_rpath=$rpath + + if test -n "$libobjs" && test yes = "$build_old_libs"; then + # Transform all the library objects into standard objects. + compile_command=`$ECHO "$compile_command" | $SP2NL | $SED "$lo2o" | $NL2SP` + finalize_command=`$ECHO "$finalize_command" | $SP2NL | $SED "$lo2o" | $NL2SP` + fi + + func_generate_dlsyms "$outputname" "@PROGRAM@" false + + # template prelinking step + if test -n "$prelink_cmds"; then + func_execute_cmds "$prelink_cmds" 'exit $?' + fi + + wrappers_required=: + case $host in + *cegcc* | *mingw32ce*) + # Disable wrappers for cegcc and mingw32ce hosts, we are cross compiling anyway. + wrappers_required=false + ;; + *cygwin* | *mingw* ) + test yes = "$build_libtool_libs" || wrappers_required=false + ;; + *) + if test no = "$need_relink" || test yes != "$build_libtool_libs"; then + wrappers_required=false + fi + ;; + esac + $wrappers_required || { + # Replace the output file specification. + compile_command=`$ECHO "$compile_command" | $SED 's%@OUTPUT@%'"$output"'%g'` + link_command=$compile_command$compile_rpath + + # We have no uninstalled library dependencies, so finalize right now. + exit_status=0 + func_show_eval "$link_command" 'exit_status=$?' + + if test -n "$postlink_cmds"; then + func_to_tool_file "$output" + postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'` + func_execute_cmds "$postlink_cmds" 'exit $?' + fi + + # Delete the generated files. + if test -f "$output_objdir/${outputname}S.$objext"; then + func_show_eval '$RM "$output_objdir/${outputname}S.$objext"' + fi + + exit $exit_status + } + + if test -n "$compile_shlibpath$finalize_shlibpath"; then + compile_command="$shlibpath_var=\"$compile_shlibpath$finalize_shlibpath\$$shlibpath_var\" $compile_command" + fi + if test -n "$finalize_shlibpath"; then + finalize_command="$shlibpath_var=\"$finalize_shlibpath\$$shlibpath_var\" $finalize_command" + fi + + compile_var= + finalize_var= + if test -n "$runpath_var"; then + if test -n "$perm_rpath"; then + # We should set the runpath_var. + rpath= + for dir in $perm_rpath; do + func_append rpath "$dir:" + done + compile_var="$runpath_var=\"$rpath\$$runpath_var\" " + fi + if test -n "$finalize_perm_rpath"; then + # We should set the runpath_var. + rpath= + for dir in $finalize_perm_rpath; do + func_append rpath "$dir:" + done + finalize_var="$runpath_var=\"$rpath\$$runpath_var\" " + fi + fi + + if test yes = "$no_install"; then + # We don't need to create a wrapper script. + link_command=$compile_var$compile_command$compile_rpath + # Replace the output file specification. + link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output"'%g'` + # Delete the old output file. + $opt_dry_run || $RM $output + # Link the executable and exit + func_show_eval "$link_command" 'exit $?' + + if test -n "$postlink_cmds"; then + func_to_tool_file "$output" + postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'` + func_execute_cmds "$postlink_cmds" 'exit $?' + fi + + exit $EXIT_SUCCESS + fi + + case $hardcode_action,$fast_install in + relink,*) + # Fast installation is not supported + link_command=$compile_var$compile_command$compile_rpath + relink_command=$finalize_var$finalize_command$finalize_rpath + + func_warning "this platform does not like uninstalled shared libraries" + func_warning "'$output' will be relinked during installation" + ;; + *,yes) + link_command=$finalize_var$compile_command$finalize_rpath + relink_command=`$ECHO "$compile_var$compile_command$compile_rpath" | $SED 's%@OUTPUT@%\$progdir/\$file%g'` + ;; + *,no) + link_command=$compile_var$compile_command$compile_rpath + relink_command=$finalize_var$finalize_command$finalize_rpath + ;; + *,needless) + link_command=$finalize_var$compile_command$finalize_rpath + relink_command= + ;; + esac + + # Replace the output file specification. + link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output_objdir/$outputname"'%g'` + + # Delete the old output files. + $opt_dry_run || $RM $output $output_objdir/$outputname $output_objdir/lt-$outputname + + func_show_eval "$link_command" 'exit $?' + + if test -n "$postlink_cmds"; then + func_to_tool_file "$output_objdir/$outputname" + postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output_objdir/$outputname"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'` + func_execute_cmds "$postlink_cmds" 'exit $?' + fi + + # Now create the wrapper script. + func_verbose "creating $output" + + # Quote the relink command for shipping. + if test -n "$relink_command"; then + # Preserve any variables that may affect compiler behavior + for var in $variables_saved_for_relink; do + if eval test -z \"\${$var+set}\"; then + relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command" + elif eval var_value=\$$var; test -z "$var_value"; then + relink_command="$var=; export $var; $relink_command" + else + func_quote_for_eval "$var_value" + relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command" + fi + done + relink_command="(cd `pwd`; $relink_command)" + relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"` + fi + + # Only actually do things if not in dry run mode. + $opt_dry_run || { + # win32 will think the script is a binary if it has + # a .exe suffix, so we strip it off here. + case $output in + *.exe) func_stripname '' '.exe' "$output" + output=$func_stripname_result ;; + esac + # test for cygwin because mv fails w/o .exe extensions + case $host in + *cygwin*) + exeext=.exe + func_stripname '' '.exe' "$outputname" + outputname=$func_stripname_result ;; + *) exeext= ;; + esac + case $host in + *cygwin* | *mingw* ) + func_dirname_and_basename "$output" "" "." + output_name=$func_basename_result + output_path=$func_dirname_result + cwrappersource=$output_path/$objdir/lt-$output_name.c + cwrapper=$output_path/$output_name.exe + $RM $cwrappersource $cwrapper + trap "$RM $cwrappersource $cwrapper; exit $EXIT_FAILURE" 1 2 15 + + func_emit_cwrapperexe_src > $cwrappersource + + # The wrapper executable is built using the $host compiler, + # because it contains $host paths and files. If cross- + # compiling, it, like the target executable, must be + # executed on the $host or under an emulation environment. + $opt_dry_run || { + $LTCC $LTCFLAGS -o $cwrapper $cwrappersource + $STRIP $cwrapper + } + + # Now, create the wrapper script for func_source use: + func_ltwrapper_scriptname $cwrapper + $RM $func_ltwrapper_scriptname_result + trap "$RM $func_ltwrapper_scriptname_result; exit $EXIT_FAILURE" 1 2 15 + $opt_dry_run || { + # note: this script will not be executed, so do not chmod. + if test "x$build" = "x$host"; then + $cwrapper --lt-dump-script > $func_ltwrapper_scriptname_result + else + func_emit_wrapper no > $func_ltwrapper_scriptname_result + fi + } + ;; + * ) + $RM $output + trap "$RM $output; exit $EXIT_FAILURE" 1 2 15 + + func_emit_wrapper no > $output + chmod +x $output + ;; + esac + } + exit $EXIT_SUCCESS + ;; + esac + + # See if we need to build an old-fashioned archive. + for oldlib in $oldlibs; do + + case $build_libtool_libs in + convenience) + oldobjs="$libobjs_save $symfileobj" + addlibs=$convenience + build_libtool_libs=no + ;; + module) + oldobjs=$libobjs_save + addlibs=$old_convenience + build_libtool_libs=no + ;; + *) + oldobjs="$old_deplibs $non_pic_objects" + $preload && test -f "$symfileobj" \ + && func_append oldobjs " $symfileobj" + addlibs=$old_convenience + ;; + esac + + if test -n "$addlibs"; then + gentop=$output_objdir/${outputname}x + func_append generated " $gentop" + + func_extract_archives $gentop $addlibs + func_append oldobjs " $func_extract_archives_result" + fi + + # Do each command in the archive commands. + if test -n "$old_archive_from_new_cmds" && test yes = "$build_libtool_libs"; then + cmds=$old_archive_from_new_cmds + else + + # Add any objects from preloaded convenience libraries + if test -n "$dlprefiles"; then + gentop=$output_objdir/${outputname}x + func_append generated " $gentop" + + func_extract_archives $gentop $dlprefiles + func_append oldobjs " $func_extract_archives_result" + fi + + # POSIX demands no paths to be encoded in archives. We have + # to avoid creating archives with duplicate basenames if we + # might have to extract them afterwards, e.g., when creating a + # static archive out of a convenience library, or when linking + # the entirety of a libtool archive into another (currently + # not supported by libtool). + if (for obj in $oldobjs + do + func_basename "$obj" + $ECHO "$func_basename_result" + done | sort | sort -uc >/dev/null 2>&1); then + : + else + echo "copying selected object files to avoid basename conflicts..." + gentop=$output_objdir/${outputname}x + func_append generated " $gentop" + func_mkdir_p "$gentop" + save_oldobjs=$oldobjs + oldobjs= + counter=1 + for obj in $save_oldobjs + do + func_basename "$obj" + objbase=$func_basename_result + case " $oldobjs " in + " ") oldobjs=$obj ;; + *[\ /]"$objbase "*) + while :; do + # Make sure we don't pick an alternate name that also + # overlaps. + newobj=lt$counter-$objbase + func_arith $counter + 1 + counter=$func_arith_result + case " $oldobjs " in + *[\ /]"$newobj "*) ;; + *) if test ! -f "$gentop/$newobj"; then break; fi ;; + esac + done + func_show_eval "ln $obj $gentop/$newobj || cp $obj $gentop/$newobj" + func_append oldobjs " $gentop/$newobj" + ;; + *) func_append oldobjs " $obj" ;; + esac + done + fi + func_to_tool_file "$oldlib" func_convert_file_msys_to_w32 + tool_oldlib=$func_to_tool_file_result + eval cmds=\"$old_archive_cmds\" + + func_len " $cmds" + len=$func_len_result + if test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then + cmds=$old_archive_cmds + elif test -n "$archiver_list_spec"; then + func_verbose "using command file archive linking..." + for obj in $oldobjs + do + func_to_tool_file "$obj" + $ECHO "$func_to_tool_file_result" + done > $output_objdir/$libname.libcmd + func_to_tool_file "$output_objdir/$libname.libcmd" + oldobjs=" $archiver_list_spec$func_to_tool_file_result" + cmds=$old_archive_cmds + else + # the command line is too long to link in one step, link in parts + func_verbose "using piecewise archive linking..." + save_RANLIB=$RANLIB + RANLIB=: + objlist= + concat_cmds= + save_oldobjs=$oldobjs + oldobjs= + # Is there a better way of finding the last object in the list? + for obj in $save_oldobjs + do + last_oldobj=$obj + done + eval test_cmds=\"$old_archive_cmds\" + func_len " $test_cmds" + len0=$func_len_result + len=$len0 + for obj in $save_oldobjs + do + func_len " $obj" + func_arith $len + $func_len_result + len=$func_arith_result + func_append objlist " $obj" + if test "$len" -lt "$max_cmd_len"; then + : + else + # the above command should be used before it gets too long + oldobjs=$objlist + if test "$obj" = "$last_oldobj"; then + RANLIB=$save_RANLIB + fi + test -z "$concat_cmds" || concat_cmds=$concat_cmds~ + eval concat_cmds=\"\$concat_cmds$old_archive_cmds\" + objlist= + len=$len0 + fi + done + RANLIB=$save_RANLIB + oldobjs=$objlist + if test -z "$oldobjs"; then + eval cmds=\"\$concat_cmds\" + else + eval cmds=\"\$concat_cmds~\$old_archive_cmds\" + fi + fi + fi + func_execute_cmds "$cmds" 'exit $?' + done + + test -n "$generated" && \ + func_show_eval "${RM}r$generated" + + # Now create the libtool archive. + case $output in + *.la) + old_library= + test yes = "$build_old_libs" && old_library=$libname.$libext + func_verbose "creating $output" + + # Preserve any variables that may affect compiler behavior + for var in $variables_saved_for_relink; do + if eval test -z \"\${$var+set}\"; then + relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command" + elif eval var_value=\$$var; test -z "$var_value"; then + relink_command="$var=; export $var; $relink_command" + else + func_quote_for_eval "$var_value" + relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command" + fi + done + # Quote the link command for shipping. + relink_command="(cd `pwd`; $SHELL \"$progpath\" $preserve_args --mode=relink $libtool_args @inst_prefix_dir@)" + relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"` + if test yes = "$hardcode_automatic"; then + relink_command= + fi + + # Only create the output if not a dry run. + $opt_dry_run || { + for installed in no yes; do + if test yes = "$installed"; then + if test -z "$install_libdir"; then + break + fi + output=$output_objdir/${outputname}i + # Replace all uninstalled libtool libraries with the installed ones + newdependency_libs= + for deplib in $dependency_libs; do + case $deplib in + *.la) + func_basename "$deplib" + name=$func_basename_result + func_resolve_sysroot "$deplib" + eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $func_resolve_sysroot_result` + test -z "$libdir" && \ + func_fatal_error "'$deplib' is not a valid libtool archive" + func_append newdependency_libs " ${lt_sysroot:+=}$libdir/$name" + ;; + -L*) + func_stripname -L '' "$deplib" + func_replace_sysroot "$func_stripname_result" + func_append newdependency_libs " -L$func_replace_sysroot_result" + ;; + -R*) + func_stripname -R '' "$deplib" + func_replace_sysroot "$func_stripname_result" + func_append newdependency_libs " -R$func_replace_sysroot_result" + ;; + *) func_append newdependency_libs " $deplib" ;; + esac + done + dependency_libs=$newdependency_libs + newdlfiles= + + for lib in $dlfiles; do + case $lib in + *.la) + func_basename "$lib" + name=$func_basename_result + eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $lib` + test -z "$libdir" && \ + func_fatal_error "'$lib' is not a valid libtool archive" + func_append newdlfiles " ${lt_sysroot:+=}$libdir/$name" + ;; + *) func_append newdlfiles " $lib" ;; + esac + done + dlfiles=$newdlfiles + newdlprefiles= + for lib in $dlprefiles; do + case $lib in + *.la) + # Only pass preopened files to the pseudo-archive (for + # eventual linking with the app. that links it) if we + # didn't already link the preopened objects directly into + # the library: + func_basename "$lib" + name=$func_basename_result + eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $lib` + test -z "$libdir" && \ + func_fatal_error "'$lib' is not a valid libtool archive" + func_append newdlprefiles " ${lt_sysroot:+=}$libdir/$name" + ;; + esac + done + dlprefiles=$newdlprefiles + else + newdlfiles= + for lib in $dlfiles; do + case $lib in + [\\/]* | [A-Za-z]:[\\/]*) abs=$lib ;; + *) abs=`pwd`"/$lib" ;; + esac + func_append newdlfiles " $abs" + done + dlfiles=$newdlfiles + newdlprefiles= + for lib in $dlprefiles; do + case $lib in + [\\/]* | [A-Za-z]:[\\/]*) abs=$lib ;; + *) abs=`pwd`"/$lib" ;; + esac + func_append newdlprefiles " $abs" + done + dlprefiles=$newdlprefiles + fi + $RM $output + # place dlname in correct position for cygwin + # In fact, it would be nice if we could use this code for all target + # systems that can't hard-code library paths into their executables + # and that have no shared library path variable independent of PATH, + # but it turns out we can't easily determine that from inspecting + # libtool variables, so we have to hard-code the OSs to which it + # applies here; at the moment, that means platforms that use the PE + # object format with DLL files. See the long comment at the top of + # tests/bindir.at for full details. + tdlname=$dlname + case $host,$output,$installed,$module,$dlname in + *cygwin*,*lai,yes,no,*.dll | *mingw*,*lai,yes,no,*.dll | *cegcc*,*lai,yes,no,*.dll) + # If a -bindir argument was supplied, place the dll there. + if test -n "$bindir"; then + func_relative_path "$install_libdir" "$bindir" + tdlname=$func_relative_path_result/$dlname + else + # Otherwise fall back on heuristic. + tdlname=../bin/$dlname + fi + ;; + esac + $ECHO > $output "\ +# $outputname - a libtool library file +# Generated by $PROGRAM (GNU $PACKAGE) $VERSION +# +# Please DO NOT delete this file! +# It is necessary for linking the library. + +# The name that we can dlopen(3). +dlname='$tdlname' + +# Names of this library. +library_names='$library_names' + +# The name of the static archive. +old_library='$old_library' + +# Linker flags that cannot go in dependency_libs. +inherited_linker_flags='$new_inherited_linker_flags' + +# Libraries that this one depends upon. +dependency_libs='$dependency_libs' + +# Names of additional weak libraries provided by this library +weak_library_names='$weak_libs' + +# Version information for $libname. +current=$current +age=$age +revision=$revision + +# Is this an already installed library? +installed=$installed + +# Should we warn about portability when linking against -modules? +shouldnotlink=$module + +# Files to dlopen/dlpreopen +dlopen='$dlfiles' +dlpreopen='$dlprefiles' + +# Directory that this library needs to be installed in: +libdir='$install_libdir'" + if test no,yes = "$installed,$need_relink"; then + $ECHO >> $output "\ +relink_command=\"$relink_command\"" + fi + done + } + + # Do a symbolic link so that the libtool archive can be found in + # LD_LIBRARY_PATH before the program is installed. + func_show_eval '( cd "$output_objdir" && $RM "$outputname" && $LN_S "../$outputname" "$outputname" )' 'exit $?' + ;; + esac + exit $EXIT_SUCCESS +} + +if test link = "$opt_mode" || test relink = "$opt_mode"; then + func_mode_link ${1+"$@"} +fi + + +# func_mode_uninstall arg... +func_mode_uninstall () +{ + $debug_cmd + + RM=$nonopt + files= + rmforce=false + exit_status=0 + + # This variable tells wrapper scripts just to set variables rather + # than running their programs. + libtool_install_magic=$magic + + for arg + do + case $arg in + -f) func_append RM " $arg"; rmforce=: ;; + -*) func_append RM " $arg" ;; + *) func_append files " $arg" ;; + esac + done + + test -z "$RM" && \ + func_fatal_help "you must specify an RM program" + + rmdirs= + + for file in $files; do + func_dirname "$file" "" "." + dir=$func_dirname_result + if test . = "$dir"; then + odir=$objdir + else + odir=$dir/$objdir + fi + func_basename "$file" + name=$func_basename_result + test uninstall = "$opt_mode" && odir=$dir + + # Remember odir for removal later, being careful to avoid duplicates + if test clean = "$opt_mode"; then + case " $rmdirs " in + *" $odir "*) ;; + *) func_append rmdirs " $odir" ;; + esac + fi + + # Don't error if the file doesn't exist and rm -f was used. + if { test -L "$file"; } >/dev/null 2>&1 || + { test -h "$file"; } >/dev/null 2>&1 || + test -f "$file"; then + : + elif test -d "$file"; then + exit_status=1 + continue + elif $rmforce; then + continue + fi + + rmfiles=$file + + case $name in + *.la) + # Possibly a libtool archive, so verify it. + if func_lalib_p "$file"; then + func_source $dir/$name + + # Delete the libtool libraries and symlinks. + for n in $library_names; do + func_append rmfiles " $odir/$n" + done + test -n "$old_library" && func_append rmfiles " $odir/$old_library" + + case $opt_mode in + clean) + case " $library_names " in + *" $dlname "*) ;; + *) test -n "$dlname" && func_append rmfiles " $odir/$dlname" ;; + esac + test -n "$libdir" && func_append rmfiles " $odir/$name $odir/${name}i" + ;; + uninstall) + if test -n "$library_names"; then + # Do each command in the postuninstall commands. + func_execute_cmds "$postuninstall_cmds" '$rmforce || exit_status=1' + fi + + if test -n "$old_library"; then + # Do each command in the old_postuninstall commands. + func_execute_cmds "$old_postuninstall_cmds" '$rmforce || exit_status=1' + fi + # FIXME: should reinstall the best remaining shared library. + ;; + esac + fi + ;; + + *.lo) + # Possibly a libtool object, so verify it. + if func_lalib_p "$file"; then + + # Read the .lo file + func_source $dir/$name + + # Add PIC object to the list of files to remove. + if test -n "$pic_object" && test none != "$pic_object"; then + func_append rmfiles " $dir/$pic_object" + fi + + # Add non-PIC object to the list of files to remove. + if test -n "$non_pic_object" && test none != "$non_pic_object"; then + func_append rmfiles " $dir/$non_pic_object" + fi + fi + ;; + + *) + if test clean = "$opt_mode"; then + noexename=$name + case $file in + *.exe) + func_stripname '' '.exe' "$file" + file=$func_stripname_result + func_stripname '' '.exe' "$name" + noexename=$func_stripname_result + # $file with .exe has already been added to rmfiles, + # add $file without .exe + func_append rmfiles " $file" + ;; + esac + # Do a test to see if this is a libtool program. + if func_ltwrapper_p "$file"; then + if func_ltwrapper_executable_p "$file"; then + func_ltwrapper_scriptname "$file" + relink_command= + func_source $func_ltwrapper_scriptname_result + func_append rmfiles " $func_ltwrapper_scriptname_result" + else + relink_command= + func_source $dir/$noexename + fi + + # note $name still contains .exe if it was in $file originally + # as does the version of $file that was added into $rmfiles + func_append rmfiles " $odir/$name $odir/${name}S.$objext" + if test yes = "$fast_install" && test -n "$relink_command"; then + func_append rmfiles " $odir/lt-$name" + fi + if test "X$noexename" != "X$name"; then + func_append rmfiles " $odir/lt-$noexename.c" + fi + fi + fi + ;; + esac + func_show_eval "$RM $rmfiles" 'exit_status=1' + done + + # Try to remove the $objdir's in the directories where we deleted files + for dir in $rmdirs; do + if test -d "$dir"; then + func_show_eval "rmdir $dir >/dev/null 2>&1" + fi + done + + exit $exit_status +} + +if test uninstall = "$opt_mode" || test clean = "$opt_mode"; then + func_mode_uninstall ${1+"$@"} +fi + +test -z "$opt_mode" && { + help=$generic_help + func_fatal_help "you must specify a MODE" +} + +test -z "$exec_cmd" && \ + func_fatal_help "invalid operation mode '$opt_mode'" + +if test -n "$exec_cmd"; then + eval exec "$exec_cmd" + exit $EXIT_FAILURE +fi + +exit $exit_status + + +# The TAGs below are defined such that we never get into a situation +# where we disable both kinds of libraries. Given conflicting +# choices, we go for a static library, that is the most portable, +# since we can't tell whether shared libraries were disabled because +# the user asked for that or because the platform doesn't support +# them. This is particularly important on AIX, because we don't +# support having both static and shared libraries enabled at the same +# time on that platform, so we default to a shared-only configuration. +# If a disable-shared tag is given, we'll fallback to a static-only +# configuration. But we'll never go from static-only to shared-only. + +# ### BEGIN LIBTOOL TAG CONFIG: disable-shared +build_libtool_libs=no +build_old_libs=yes +# ### END LIBTOOL TAG CONFIG: disable-shared + +# ### BEGIN LIBTOOL TAG CONFIG: disable-static +build_old_libs=`case $build_libtool_libs in yes) echo no;; *) echo yes;; esac` +# ### END LIBTOOL TAG CONFIG: disable-static + +# Local Variables: +# mode:shell-script +# sh-indentation:2 +# End: diff --git a/m4/.gitignore b/m4/.gitignore new file mode 100644 index 0000000..464ba5c --- /dev/null +++ b/m4/.gitignore @@ -0,0 +1,5 @@ +libtool.m4 +lt~obsolete.m4 +ltoptions.m4 +ltsugar.m4 +ltversion.m4 diff --git a/m4/ax_pthread.m4 b/m4/ax_pthread.m4 new file mode 100644 index 0000000..5fbf9fe --- /dev/null +++ b/m4/ax_pthread.m4 @@ -0,0 +1,485 @@ +# =========================================================================== +# https://www.gnu.org/software/autoconf-archive/ax_pthread.html +# =========================================================================== +# +# SYNOPSIS +# +# AX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]]) +# +# DESCRIPTION +# +# This macro figures out how to build C programs using POSIX threads. It +# sets the PTHREAD_LIBS output variable to the threads library and linker +# flags, and the PTHREAD_CFLAGS output variable to any special C compiler +# flags that are needed. (The user can also force certain compiler +# flags/libs to be tested by setting these environment variables.) +# +# Also sets PTHREAD_CC to any special C compiler that is needed for +# multi-threaded programs (defaults to the value of CC otherwise). (This +# is necessary on AIX to use the special cc_r compiler alias.) +# +# NOTE: You are assumed to not only compile your program with these flags, +# but also to link with them as well. For example, you might link with +# $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS $LIBS +# +# If you are only building threaded programs, you may wish to use these +# variables in your default LIBS, CFLAGS, and CC: +# +# LIBS="$PTHREAD_LIBS $LIBS" +# CFLAGS="$CFLAGS $PTHREAD_CFLAGS" +# CC="$PTHREAD_CC" +# +# In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute constant +# has a nonstandard name, this macro defines PTHREAD_CREATE_JOINABLE to +# that name (e.g. PTHREAD_CREATE_UNDETACHED on AIX). +# +# Also HAVE_PTHREAD_PRIO_INHERIT is defined if pthread is found and the +# PTHREAD_PRIO_INHERIT symbol is defined when compiling with +# PTHREAD_CFLAGS. +# +# ACTION-IF-FOUND is a list of shell commands to run if a threads library +# is found, and ACTION-IF-NOT-FOUND is a list of commands to run it if it +# is not found. If ACTION-IF-FOUND is not specified, the default action +# will define HAVE_PTHREAD. +# +# Please let the authors know if this macro fails on any platform, or if +# you have any other suggestions or comments. This macro was based on work +# by SGJ on autoconf scripts for FFTW (http://www.fftw.org/) (with help +# from M. Frigo), as well as ac_pthread and hb_pthread macros posted by +# Alejandro Forero Cuervo to the autoconf macro repository. We are also +# grateful for the helpful feedback of numerous users. +# +# Updated for Autoconf 2.68 by Daniel Richard G. +# +# LICENSE +# +# Copyright (c) 2008 Steven G. Johnson +# Copyright (c) 2011 Daniel Richard G. +# +# This program is free software: you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by the +# Free Software Foundation, either version 3 of the License, or (at your +# option) any later version. +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General +# Public License for more details. +# +# You should have received a copy of the GNU General Public License along +# with this program. If not, see . +# +# As a special exception, the respective Autoconf Macro's copyright owner +# gives unlimited permission to copy, distribute and modify the configure +# scripts that are the output of Autoconf when processing the Macro. You +# need not follow the terms of the GNU General Public License when using +# or distributing such scripts, even though portions of the text of the +# Macro appear in them. The GNU General Public License (GPL) does govern +# all other use of the material that constitutes the Autoconf Macro. +# +# This special exception to the GPL applies to versions of the Autoconf +# Macro released by the Autoconf Archive. When you make and distribute a +# modified version of the Autoconf Macro, you may extend this special +# exception to the GPL to apply to your modified version as well. + +#serial 24 + +AU_ALIAS([ACX_PTHREAD], [AX_PTHREAD]) +AC_DEFUN([AX_PTHREAD], [ +AC_REQUIRE([AC_CANONICAL_HOST]) +AC_REQUIRE([AC_PROG_CC]) +AC_REQUIRE([AC_PROG_SED]) +AC_LANG_PUSH([C]) +ax_pthread_ok=no + +# We used to check for pthread.h first, but this fails if pthread.h +# requires special compiler flags (e.g. on Tru64 or Sequent). +# It gets checked for in the link test anyway. + +# First of all, check if the user has set any of the PTHREAD_LIBS, +# etcetera environment variables, and if threads linking works using +# them: +if test "x$PTHREAD_CFLAGS$PTHREAD_LIBS" != "x"; then + ax_pthread_save_CC="$CC" + ax_pthread_save_CFLAGS="$CFLAGS" + ax_pthread_save_LIBS="$LIBS" + AS_IF([test "x$PTHREAD_CC" != "x"], [CC="$PTHREAD_CC"]) + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + LIBS="$PTHREAD_LIBS $LIBS" + AC_MSG_CHECKING([for pthread_join using $CC $PTHREAD_CFLAGS $PTHREAD_LIBS]) + AC_LINK_IFELSE([AC_LANG_CALL([], [pthread_join])], [ax_pthread_ok=yes]) + AC_MSG_RESULT([$ax_pthread_ok]) + if test "x$ax_pthread_ok" = "xno"; then + PTHREAD_LIBS="" + PTHREAD_CFLAGS="" + fi + CC="$ax_pthread_save_CC" + CFLAGS="$ax_pthread_save_CFLAGS" + LIBS="$ax_pthread_save_LIBS" +fi + +# We must check for the threads library under a number of different +# names; the ordering is very important because some systems +# (e.g. DEC) have both -lpthread and -lpthreads, where one of the +# libraries is broken (non-POSIX). + +# Create a list of thread flags to try. Items starting with a "-" are +# C compiler flags, and other items are library names, except for "none" +# which indicates that we try without any flags at all, and "pthread-config" +# which is a program returning the flags for the Pth emulation library. + +ax_pthread_flags="pthreads none -Kthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config" + +# The ordering *is* (sometimes) important. Some notes on the +# individual items follow: + +# pthreads: AIX (must check this before -lpthread) +# none: in case threads are in libc; should be tried before -Kthread and +# other compiler flags to prevent continual compiler warnings +# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h) +# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads), Tru64 +# (Note: HP C rejects this with "bad form for `-t' option") +# -pthreads: Solaris/gcc (Note: HP C also rejects) +# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it +# doesn't hurt to check since this sometimes defines pthreads and +# -D_REENTRANT too), HP C (must be checked before -lpthread, which +# is present but should not be used directly; and before -mthreads, +# because the compiler interprets this as "-mt" + "-hreads") +# -mthreads: Mingw32/gcc, Lynx/gcc +# pthread: Linux, etcetera +# --thread-safe: KAI C++ +# pthread-config: use pthread-config program (for GNU Pth library) + +case $host_os in + + freebsd*) + + # -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able) + # lthread: LinuxThreads port on FreeBSD (also preferred to -pthread) + + ax_pthread_flags="-kthread lthread $ax_pthread_flags" + ;; + + hpux*) + + # From the cc(1) man page: "[-mt] Sets various -D flags to enable + # multi-threading and also sets -lpthread." + + ax_pthread_flags="-mt -pthread pthread $ax_pthread_flags" + ;; + + openedition*) + + # IBM z/OS requires a feature-test macro to be defined in order to + # enable POSIX threads at all, so give the user a hint if this is + # not set. (We don't define these ourselves, as they can affect + # other portions of the system API in unpredictable ways.) + + AC_EGREP_CPP([AX_PTHREAD_ZOS_MISSING], + [ +# if !defined(_OPEN_THREADS) && !defined(_UNIX03_THREADS) + AX_PTHREAD_ZOS_MISSING +# endif + ], + [AC_MSG_WARN([IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support.])]) + ;; + + solaris*) + + # On Solaris (at least, for some versions), libc contains stubbed + # (non-functional) versions of the pthreads routines, so link-based + # tests will erroneously succeed. (N.B.: The stubs are missing + # pthread_cleanup_push, or rather a function called by this macro, + # so we could check for that, but who knows whether they'll stub + # that too in a future libc.) So we'll check first for the + # standard Solaris way of linking pthreads (-mt -lpthread). + + ax_pthread_flags="-mt,pthread pthread $ax_pthread_flags" + ;; +esac + +# GCC generally uses -pthread, or -pthreads on some platforms (e.g. SPARC) + +AS_IF([test "x$GCC" = "xyes"], + [ax_pthread_flags="-pthread -pthreads $ax_pthread_flags"]) + +# The presence of a feature test macro requesting re-entrant function +# definitions is, on some systems, a strong hint that pthreads support is +# correctly enabled + +case $host_os in + darwin* | hpux* | linux* | osf* | solaris*) + ax_pthread_check_macro="_REENTRANT" + ;; + + aix*) + ax_pthread_check_macro="_THREAD_SAFE" + ;; + + *) + ax_pthread_check_macro="--" + ;; +esac +AS_IF([test "x$ax_pthread_check_macro" = "x--"], + [ax_pthread_check_cond=0], + [ax_pthread_check_cond="!defined($ax_pthread_check_macro)"]) + +# Are we compiling with Clang? + +AC_CACHE_CHECK([whether $CC is Clang], + [ax_cv_PTHREAD_CLANG], + [ax_cv_PTHREAD_CLANG=no + # Note that Autoconf sets GCC=yes for Clang as well as GCC + if test "x$GCC" = "xyes"; then + AC_EGREP_CPP([AX_PTHREAD_CC_IS_CLANG], + [/* Note: Clang 2.7 lacks __clang_[a-z]+__ */ +# if defined(__clang__) && defined(__llvm__) + AX_PTHREAD_CC_IS_CLANG +# endif + ], + [ax_cv_PTHREAD_CLANG=yes]) + fi + ]) +ax_pthread_clang="$ax_cv_PTHREAD_CLANG" + +ax_pthread_clang_warning=no + +# Clang needs special handling, because older versions handle the -pthread +# option in a rather... idiosyncratic way + +if test "x$ax_pthread_clang" = "xyes"; then + + # Clang takes -pthread; it has never supported any other flag + + # (Note 1: This will need to be revisited if a system that Clang + # supports has POSIX threads in a separate library. This tends not + # to be the way of modern systems, but it's conceivable.) + + # (Note 2: On some systems, notably Darwin, -pthread is not needed + # to get POSIX threads support; the API is always present and + # active. We could reasonably leave PTHREAD_CFLAGS empty. But + # -pthread does define _REENTRANT, and while the Darwin headers + # ignore this macro, third-party headers might not.) + + PTHREAD_CFLAGS="-pthread" + PTHREAD_LIBS= + + ax_pthread_ok=yes + + # However, older versions of Clang make a point of warning the user + # that, in an invocation where only linking and no compilation is + # taking place, the -pthread option has no effect ("argument unused + # during compilation"). They expect -pthread to be passed in only + # when source code is being compiled. + # + # Problem is, this is at odds with the way Automake and most other + # C build frameworks function, which is that the same flags used in + # compilation (CFLAGS) are also used in linking. Many systems + # supported by AX_PTHREAD require exactly this for POSIX threads + # support, and in fact it is often not straightforward to specify a + # flag that is used only in the compilation phase and not in + # linking. Such a scenario is extremely rare in practice. + # + # Even though use of the -pthread flag in linking would only print + # a warning, this can be a nuisance for well-run software projects + # that build with -Werror. So if the active version of Clang has + # this misfeature, we search for an option to squash it. + + AC_CACHE_CHECK([whether Clang needs flag to prevent "argument unused" warning when linking with -pthread], + [ax_cv_PTHREAD_CLANG_NO_WARN_FLAG], + [ax_cv_PTHREAD_CLANG_NO_WARN_FLAG=unknown + # Create an alternate version of $ac_link that compiles and + # links in two steps (.c -> .o, .o -> exe) instead of one + # (.c -> exe), because the warning occurs only in the second + # step + ax_pthread_save_ac_link="$ac_link" + ax_pthread_sed='s/conftest\.\$ac_ext/conftest.$ac_objext/g' + ax_pthread_link_step=`$as_echo "$ac_link" | sed "$ax_pthread_sed"` + ax_pthread_2step_ac_link="($ac_compile) && (echo ==== >&5) && ($ax_pthread_link_step)" + ax_pthread_save_CFLAGS="$CFLAGS" + for ax_pthread_try in '' -Qunused-arguments -Wno-unused-command-line-argument unknown; do + AS_IF([test "x$ax_pthread_try" = "xunknown"], [break]) + CFLAGS="-Werror -Wunknown-warning-option $ax_pthread_try -pthread $ax_pthread_save_CFLAGS" + ac_link="$ax_pthread_save_ac_link" + AC_LINK_IFELSE([AC_LANG_SOURCE([[int main(void){return 0;}]])], + [ac_link="$ax_pthread_2step_ac_link" + AC_LINK_IFELSE([AC_LANG_SOURCE([[int main(void){return 0;}]])], + [break]) + ]) + done + ac_link="$ax_pthread_save_ac_link" + CFLAGS="$ax_pthread_save_CFLAGS" + AS_IF([test "x$ax_pthread_try" = "x"], [ax_pthread_try=no]) + ax_cv_PTHREAD_CLANG_NO_WARN_FLAG="$ax_pthread_try" + ]) + + case "$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" in + no | unknown) ;; + *) PTHREAD_CFLAGS="$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG $PTHREAD_CFLAGS" ;; + esac + +fi # $ax_pthread_clang = yes + +if test "x$ax_pthread_ok" = "xno"; then +for ax_pthread_try_flag in $ax_pthread_flags; do + + case $ax_pthread_try_flag in + none) + AC_MSG_CHECKING([whether pthreads work without any flags]) + ;; + + -mt,pthread) + AC_MSG_CHECKING([whether pthreads work with -mt -lpthread]) + PTHREAD_CFLAGS="-mt" + PTHREAD_LIBS="-lpthread" + ;; + + -*) + AC_MSG_CHECKING([whether pthreads work with $ax_pthread_try_flag]) + PTHREAD_CFLAGS="$ax_pthread_try_flag" + ;; + + pthread-config) + AC_CHECK_PROG([ax_pthread_config], [pthread-config], [yes], [no]) + AS_IF([test "x$ax_pthread_config" = "xno"], [continue]) + PTHREAD_CFLAGS="`pthread-config --cflags`" + PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`" + ;; + + *) + AC_MSG_CHECKING([for the pthreads library -l$ax_pthread_try_flag]) + PTHREAD_LIBS="-l$ax_pthread_try_flag" + ;; + esac + + ax_pthread_save_CFLAGS="$CFLAGS" + ax_pthread_save_LIBS="$LIBS" + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + LIBS="$PTHREAD_LIBS $LIBS" + + # Check for various functions. We must include pthread.h, + # since some functions may be macros. (On the Sequent, we + # need a special flag -Kthread to make this header compile.) + # We check for pthread_join because it is in -lpthread on IRIX + # while pthread_create is in libc. We check for pthread_attr_init + # due to DEC craziness with -lpthreads. We check for + # pthread_cleanup_push because it is one of the few pthread + # functions on Solaris that doesn't have a non-functional libc stub. + # We try pthread_create on general principles. + + AC_LINK_IFELSE([AC_LANG_PROGRAM([#include +# if $ax_pthread_check_cond +# error "$ax_pthread_check_macro must be defined" +# endif + static void routine(void *a) { a = 0; } + static void *start_routine(void *a) { return a; }], + [pthread_t th; pthread_attr_t attr; + pthread_create(&th, 0, start_routine, 0); + pthread_join(th, 0); + pthread_attr_init(&attr); + pthread_cleanup_push(routine, 0); + pthread_cleanup_pop(0) /* ; */])], + [ax_pthread_ok=yes], + []) + + CFLAGS="$ax_pthread_save_CFLAGS" + LIBS="$ax_pthread_save_LIBS" + + AC_MSG_RESULT([$ax_pthread_ok]) + AS_IF([test "x$ax_pthread_ok" = "xyes"], [break]) + + PTHREAD_LIBS="" + PTHREAD_CFLAGS="" +done +fi + +# Various other checks: +if test "x$ax_pthread_ok" = "xyes"; then + ax_pthread_save_CFLAGS="$CFLAGS" + ax_pthread_save_LIBS="$LIBS" + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + LIBS="$PTHREAD_LIBS $LIBS" + + # Detect AIX lossage: JOINABLE attribute is called UNDETACHED. + AC_CACHE_CHECK([for joinable pthread attribute], + [ax_cv_PTHREAD_JOINABLE_ATTR], + [ax_cv_PTHREAD_JOINABLE_ATTR=unknown + for ax_pthread_attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do + AC_LINK_IFELSE([AC_LANG_PROGRAM([#include ], + [int attr = $ax_pthread_attr; return attr /* ; */])], + [ax_cv_PTHREAD_JOINABLE_ATTR=$ax_pthread_attr; break], + []) + done + ]) + AS_IF([test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xunknown" && \ + test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xPTHREAD_CREATE_JOINABLE" && \ + test "x$ax_pthread_joinable_attr_defined" != "xyes"], + [AC_DEFINE_UNQUOTED([PTHREAD_CREATE_JOINABLE], + [$ax_cv_PTHREAD_JOINABLE_ATTR], + [Define to necessary symbol if this constant + uses a non-standard name on your system.]) + ax_pthread_joinable_attr_defined=yes + ]) + + AC_CACHE_CHECK([whether more special flags are required for pthreads], + [ax_cv_PTHREAD_SPECIAL_FLAGS], + [ax_cv_PTHREAD_SPECIAL_FLAGS=no + case $host_os in + solaris*) + ax_cv_PTHREAD_SPECIAL_FLAGS="-D_POSIX_PTHREAD_SEMANTICS" + ;; + esac + ]) + AS_IF([test "x$ax_cv_PTHREAD_SPECIAL_FLAGS" != "xno" && \ + test "x$ax_pthread_special_flags_added" != "xyes"], + [PTHREAD_CFLAGS="$ax_cv_PTHREAD_SPECIAL_FLAGS $PTHREAD_CFLAGS" + ax_pthread_special_flags_added=yes]) + + AC_CACHE_CHECK([for PTHREAD_PRIO_INHERIT], + [ax_cv_PTHREAD_PRIO_INHERIT], + [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include ]], + [[int i = PTHREAD_PRIO_INHERIT;]])], + [ax_cv_PTHREAD_PRIO_INHERIT=yes], + [ax_cv_PTHREAD_PRIO_INHERIT=no]) + ]) + AS_IF([test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes" && \ + test "x$ax_pthread_prio_inherit_defined" != "xyes"], + [AC_DEFINE([HAVE_PTHREAD_PRIO_INHERIT], [1], [Have PTHREAD_PRIO_INHERIT.]) + ax_pthread_prio_inherit_defined=yes + ]) + + CFLAGS="$ax_pthread_save_CFLAGS" + LIBS="$ax_pthread_save_LIBS" + + # More AIX lossage: compile with *_r variant + if test "x$GCC" != "xyes"; then + case $host_os in + aix*) + AS_CASE(["x/$CC"], + [x*/c89|x*/c89_128|x*/c99|x*/c99_128|x*/cc|x*/cc128|x*/xlc|x*/xlc_v6|x*/xlc128|x*/xlc128_v6], + [#handle absolute path differently from PATH based program lookup + AS_CASE(["x$CC"], + [x/*], + [AS_IF([AS_EXECUTABLE_P([${CC}_r])],[PTHREAD_CC="${CC}_r"])], + [AC_CHECK_PROGS([PTHREAD_CC],[${CC}_r],[$CC])])]) + ;; + esac + fi +fi + +test -n "$PTHREAD_CC" || PTHREAD_CC="$CC" + +AC_SUBST([PTHREAD_LIBS]) +AC_SUBST([PTHREAD_CFLAGS]) +AC_SUBST([PTHREAD_CC]) + +# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND: +if test "x$ax_pthread_ok" = "xyes"; then + ifelse([$1],,[AC_DEFINE([HAVE_PTHREAD],[1],[Define if you have POSIX threads libraries and header files.])],[$1]) + : +else + ax_pthread_ok=no + $2 +fi +AC_LANG_POP +])dnl AX_PTHREAD diff --git a/m4/libtool.m4 b/m4/libtool.m4 new file mode 100644 index 0000000..a644432 --- /dev/null +++ b/m4/libtool.m4 @@ -0,0 +1,8372 @@ +# libtool.m4 - Configure libtool for the host system. -*-Autoconf-*- +# +# Copyright (C) 1996-2001, 2003-2015 Free Software Foundation, Inc. +# Written by Gordon Matzigkeit, 1996 +# +# This file is free software; the Free Software Foundation gives +# unlimited permission to copy and/or distribute it, with or without +# modifications, as long as this notice is preserved. + +m4_define([_LT_COPYING], [dnl +# Copyright (C) 2014 Free Software Foundation, Inc. +# This is free software; see the source for copying conditions. There is NO +# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + +# GNU Libtool is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of of the License, or +# (at your option) any later version. +# +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program or library that is built +# using GNU Libtool, you may include this file under the same +# distribution terms that you use for the rest of that program. +# +# GNU Libtool is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . +]) + +# serial 58 LT_INIT + + +# LT_PREREQ(VERSION) +# ------------------ +# Complain and exit if this libtool version is less that VERSION. +m4_defun([LT_PREREQ], +[m4_if(m4_version_compare(m4_defn([LT_PACKAGE_VERSION]), [$1]), -1, + [m4_default([$3], + [m4_fatal([Libtool version $1 or higher is required], + 63)])], + [$2])]) + + +# _LT_CHECK_BUILDDIR +# ------------------ +# Complain if the absolute build directory name contains unusual characters +m4_defun([_LT_CHECK_BUILDDIR], +[case `pwd` in + *\ * | *\ *) + AC_MSG_WARN([Libtool does not cope well with whitespace in `pwd`]) ;; +esac +]) + + +# LT_INIT([OPTIONS]) +# ------------------ +AC_DEFUN([LT_INIT], +[AC_PREREQ([2.62])dnl We use AC_PATH_PROGS_FEATURE_CHECK +AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl +AC_BEFORE([$0], [LT_LANG])dnl +AC_BEFORE([$0], [LT_OUTPUT])dnl +AC_BEFORE([$0], [LTDL_INIT])dnl +m4_require([_LT_CHECK_BUILDDIR])dnl + +dnl Autoconf doesn't catch unexpanded LT_ macros by default: +m4_pattern_forbid([^_?LT_[A-Z_]+$])dnl +m4_pattern_allow([^(_LT_EOF|LT_DLGLOBAL|LT_DLLAZY_OR_NOW|LT_MULTI_MODULE)$])dnl +dnl aclocal doesn't pull ltoptions.m4, ltsugar.m4, or ltversion.m4 +dnl unless we require an AC_DEFUNed macro: +AC_REQUIRE([LTOPTIONS_VERSION])dnl +AC_REQUIRE([LTSUGAR_VERSION])dnl +AC_REQUIRE([LTVERSION_VERSION])dnl +AC_REQUIRE([LTOBSOLETE_VERSION])dnl +m4_require([_LT_PROG_LTMAIN])dnl + +_LT_SHELL_INIT([SHELL=${CONFIG_SHELL-/bin/sh}]) + +dnl Parse OPTIONS +_LT_SET_OPTIONS([$0], [$1]) + +# This can be used to rebuild libtool when needed +LIBTOOL_DEPS=$ltmain + +# Always use our own libtool. +LIBTOOL='$(SHELL) $(top_builddir)/libtool' +AC_SUBST(LIBTOOL)dnl + +_LT_SETUP + +# Only expand once: +m4_define([LT_INIT]) +])# LT_INIT + +# Old names: +AU_ALIAS([AC_PROG_LIBTOOL], [LT_INIT]) +AU_ALIAS([AM_PROG_LIBTOOL], [LT_INIT]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_PROG_LIBTOOL], []) +dnl AC_DEFUN([AM_PROG_LIBTOOL], []) + + +# _LT_PREPARE_CC_BASENAME +# ----------------------- +m4_defun([_LT_PREPARE_CC_BASENAME], [ +# Calculate cc_basename. Skip known compiler wrappers and cross-prefix. +func_cc_basename () +{ + for cc_temp in @S|@*""; do + case $cc_temp in + compile | *[[\\/]]compile | ccache | *[[\\/]]ccache ) ;; + distcc | *[[\\/]]distcc | purify | *[[\\/]]purify ) ;; + \-*) ;; + *) break;; + esac + done + func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"` +} +])# _LT_PREPARE_CC_BASENAME + + +# _LT_CC_BASENAME(CC) +# ------------------- +# It would be clearer to call AC_REQUIREs from _LT_PREPARE_CC_BASENAME, +# but that macro is also expanded into generated libtool script, which +# arranges for $SED and $ECHO to be set by different means. +m4_defun([_LT_CC_BASENAME], +[m4_require([_LT_PREPARE_CC_BASENAME])dnl +AC_REQUIRE([_LT_DECL_SED])dnl +AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])dnl +func_cc_basename $1 +cc_basename=$func_cc_basename_result +]) + + +# _LT_FILEUTILS_DEFAULTS +# ---------------------- +# It is okay to use these file commands and assume they have been set +# sensibly after 'm4_require([_LT_FILEUTILS_DEFAULTS])'. +m4_defun([_LT_FILEUTILS_DEFAULTS], +[: ${CP="cp -f"} +: ${MV="mv -f"} +: ${RM="rm -f"} +])# _LT_FILEUTILS_DEFAULTS + + +# _LT_SETUP +# --------- +m4_defun([_LT_SETUP], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +AC_REQUIRE([AC_CANONICAL_BUILD])dnl +AC_REQUIRE([_LT_PREPARE_SED_QUOTE_VARS])dnl +AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])dnl + +_LT_DECL([], [PATH_SEPARATOR], [1], [The PATH separator for the build system])dnl +dnl +_LT_DECL([], [host_alias], [0], [The host system])dnl +_LT_DECL([], [host], [0])dnl +_LT_DECL([], [host_os], [0])dnl +dnl +_LT_DECL([], [build_alias], [0], [The build system])dnl +_LT_DECL([], [build], [0])dnl +_LT_DECL([], [build_os], [0])dnl +dnl +AC_REQUIRE([AC_PROG_CC])dnl +AC_REQUIRE([LT_PATH_LD])dnl +AC_REQUIRE([LT_PATH_NM])dnl +dnl +AC_REQUIRE([AC_PROG_LN_S])dnl +test -z "$LN_S" && LN_S="ln -s" +_LT_DECL([], [LN_S], [1], [Whether we need soft or hard links])dnl +dnl +AC_REQUIRE([LT_CMD_MAX_LEN])dnl +_LT_DECL([objext], [ac_objext], [0], [Object file suffix (normally "o")])dnl +_LT_DECL([], [exeext], [0], [Executable file suffix (normally "")])dnl +dnl +m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_CHECK_SHELL_FEATURES])dnl +m4_require([_LT_PATH_CONVERSION_FUNCTIONS])dnl +m4_require([_LT_CMD_RELOAD])dnl +m4_require([_LT_CHECK_MAGIC_METHOD])dnl +m4_require([_LT_CHECK_SHAREDLIB_FROM_LINKLIB])dnl +m4_require([_LT_CMD_OLD_ARCHIVE])dnl +m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl +m4_require([_LT_WITH_SYSROOT])dnl +m4_require([_LT_CMD_TRUNCATE])dnl + +_LT_CONFIG_LIBTOOL_INIT([ +# See if we are running on zsh, and set the options that allow our +# commands through without removal of \ escapes INIT. +if test -n "\${ZSH_VERSION+set}"; then + setopt NO_GLOB_SUBST +fi +]) +if test -n "${ZSH_VERSION+set}"; then + setopt NO_GLOB_SUBST +fi + +_LT_CHECK_OBJDIR + +m4_require([_LT_TAG_COMPILER])dnl + +case $host_os in +aix3*) + # AIX sometimes has problems with the GCC collect2 program. For some + # reason, if we set the COLLECT_NAMES environment variable, the problems + # vanish in a puff of smoke. + if test set != "${COLLECT_NAMES+set}"; then + COLLECT_NAMES= + export COLLECT_NAMES + fi + ;; +esac + +# Global variables: +ofile=libtool +can_build_shared=yes + +# All known linkers require a '.a' archive for static linking (except MSVC, +# which needs '.lib'). +libext=a + +with_gnu_ld=$lt_cv_prog_gnu_ld + +old_CC=$CC +old_CFLAGS=$CFLAGS + +# Set sane defaults for various variables +test -z "$CC" && CC=cc +test -z "$LTCC" && LTCC=$CC +test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS +test -z "$LD" && LD=ld +test -z "$ac_objext" && ac_objext=o + +_LT_CC_BASENAME([$compiler]) + +# Only perform the check for file, if the check method requires it +test -z "$MAGIC_CMD" && MAGIC_CMD=file +case $deplibs_check_method in +file_magic*) + if test "$file_magic_cmd" = '$MAGIC_CMD'; then + _LT_PATH_MAGIC + fi + ;; +esac + +# Use C for the default configuration in the libtool script +LT_SUPPORTED_TAG([CC]) +_LT_LANG_C_CONFIG +_LT_LANG_DEFAULT_CONFIG +_LT_CONFIG_COMMANDS +])# _LT_SETUP + + +# _LT_PREPARE_SED_QUOTE_VARS +# -------------------------- +# Define a few sed substitution that help us do robust quoting. +m4_defun([_LT_PREPARE_SED_QUOTE_VARS], +[# Backslashify metacharacters that are still active within +# double-quoted strings. +sed_quote_subst='s/\([["`$\\]]\)/\\\1/g' + +# Same as above, but do not quote variable references. +double_quote_subst='s/\([["`\\]]\)/\\\1/g' + +# Sed substitution to delay expansion of an escaped shell variable in a +# double_quote_subst'ed string. +delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g' + +# Sed substitution to delay expansion of an escaped single quote. +delay_single_quote_subst='s/'\''/'\'\\\\\\\'\''/g' + +# Sed substitution to avoid accidental globbing in evaled expressions +no_glob_subst='s/\*/\\\*/g' +]) + +# _LT_PROG_LTMAIN +# --------------- +# Note that this code is called both from 'configure', and 'config.status' +# now that we use AC_CONFIG_COMMANDS to generate libtool. Notably, +# 'config.status' has no value for ac_aux_dir unless we are using Automake, +# so we pass a copy along to make sure it has a sensible value anyway. +m4_defun([_LT_PROG_LTMAIN], +[m4_ifdef([AC_REQUIRE_AUX_FILE], [AC_REQUIRE_AUX_FILE([ltmain.sh])])dnl +_LT_CONFIG_LIBTOOL_INIT([ac_aux_dir='$ac_aux_dir']) +ltmain=$ac_aux_dir/ltmain.sh +])# _LT_PROG_LTMAIN + + +## ------------------------------------- ## +## Accumulate code for creating libtool. ## +## ------------------------------------- ## + +# So that we can recreate a full libtool script including additional +# tags, we accumulate the chunks of code to send to AC_CONFIG_COMMANDS +# in macros and then make a single call at the end using the 'libtool' +# label. + + +# _LT_CONFIG_LIBTOOL_INIT([INIT-COMMANDS]) +# ---------------------------------------- +# Register INIT-COMMANDS to be passed to AC_CONFIG_COMMANDS later. +m4_define([_LT_CONFIG_LIBTOOL_INIT], +[m4_ifval([$1], + [m4_append([_LT_OUTPUT_LIBTOOL_INIT], + [$1 +])])]) + +# Initialize. +m4_define([_LT_OUTPUT_LIBTOOL_INIT]) + + +# _LT_CONFIG_LIBTOOL([COMMANDS]) +# ------------------------------ +# Register COMMANDS to be passed to AC_CONFIG_COMMANDS later. +m4_define([_LT_CONFIG_LIBTOOL], +[m4_ifval([$1], + [m4_append([_LT_OUTPUT_LIBTOOL_COMMANDS], + [$1 +])])]) + +# Initialize. +m4_define([_LT_OUTPUT_LIBTOOL_COMMANDS]) + + +# _LT_CONFIG_SAVE_COMMANDS([COMMANDS], [INIT_COMMANDS]) +# ----------------------------------------------------- +m4_defun([_LT_CONFIG_SAVE_COMMANDS], +[_LT_CONFIG_LIBTOOL([$1]) +_LT_CONFIG_LIBTOOL_INIT([$2]) +]) + + +# _LT_FORMAT_COMMENT([COMMENT]) +# ----------------------------- +# Add leading comment marks to the start of each line, and a trailing +# full-stop to the whole comment if one is not present already. +m4_define([_LT_FORMAT_COMMENT], +[m4_ifval([$1], [ +m4_bpatsubst([m4_bpatsubst([$1], [^ *], [# ])], + [['`$\]], [\\\&])]m4_bmatch([$1], [[!?.]$], [], [.]) +)]) + + + +## ------------------------ ## +## FIXME: Eliminate VARNAME ## +## ------------------------ ## + + +# _LT_DECL([CONFIGNAME], VARNAME, VALUE, [DESCRIPTION], [IS-TAGGED?]) +# ------------------------------------------------------------------- +# CONFIGNAME is the name given to the value in the libtool script. +# VARNAME is the (base) name used in the configure script. +# VALUE may be 0, 1 or 2 for a computed quote escaped value based on +# VARNAME. Any other value will be used directly. +m4_define([_LT_DECL], +[lt_if_append_uniq([lt_decl_varnames], [$2], [, ], + [lt_dict_add_subkey([lt_decl_dict], [$2], [libtool_name], + [m4_ifval([$1], [$1], [$2])]) + lt_dict_add_subkey([lt_decl_dict], [$2], [value], [$3]) + m4_ifval([$4], + [lt_dict_add_subkey([lt_decl_dict], [$2], [description], [$4])]) + lt_dict_add_subkey([lt_decl_dict], [$2], + [tagged?], [m4_ifval([$5], [yes], [no])])]) +]) + + +# _LT_TAGDECL([CONFIGNAME], VARNAME, VALUE, [DESCRIPTION]) +# -------------------------------------------------------- +m4_define([_LT_TAGDECL], [_LT_DECL([$1], [$2], [$3], [$4], [yes])]) + + +# lt_decl_tag_varnames([SEPARATOR], [VARNAME1...]) +# ------------------------------------------------ +m4_define([lt_decl_tag_varnames], +[_lt_decl_filter([tagged?], [yes], $@)]) + + +# _lt_decl_filter(SUBKEY, VALUE, [SEPARATOR], [VARNAME1..]) +# --------------------------------------------------------- +m4_define([_lt_decl_filter], +[m4_case([$#], + [0], [m4_fatal([$0: too few arguments: $#])], + [1], [m4_fatal([$0: too few arguments: $#: $1])], + [2], [lt_dict_filter([lt_decl_dict], [$1], [$2], [], lt_decl_varnames)], + [3], [lt_dict_filter([lt_decl_dict], [$1], [$2], [$3], lt_decl_varnames)], + [lt_dict_filter([lt_decl_dict], $@)])[]dnl +]) + + +# lt_decl_quote_varnames([SEPARATOR], [VARNAME1...]) +# -------------------------------------------------- +m4_define([lt_decl_quote_varnames], +[_lt_decl_filter([value], [1], $@)]) + + +# lt_decl_dquote_varnames([SEPARATOR], [VARNAME1...]) +# --------------------------------------------------- +m4_define([lt_decl_dquote_varnames], +[_lt_decl_filter([value], [2], $@)]) + + +# lt_decl_varnames_tagged([SEPARATOR], [VARNAME1...]) +# --------------------------------------------------- +m4_define([lt_decl_varnames_tagged], +[m4_assert([$# <= 2])dnl +_$0(m4_quote(m4_default([$1], [[, ]])), + m4_ifval([$2], [[$2]], [m4_dquote(lt_decl_tag_varnames)]), + m4_split(m4_normalize(m4_quote(_LT_TAGS)), [ ]))]) +m4_define([_lt_decl_varnames_tagged], +[m4_ifval([$3], [lt_combine([$1], [$2], [_], $3)])]) + + +# lt_decl_all_varnames([SEPARATOR], [VARNAME1...]) +# ------------------------------------------------ +m4_define([lt_decl_all_varnames], +[_$0(m4_quote(m4_default([$1], [[, ]])), + m4_if([$2], [], + m4_quote(lt_decl_varnames), + m4_quote(m4_shift($@))))[]dnl +]) +m4_define([_lt_decl_all_varnames], +[lt_join($@, lt_decl_varnames_tagged([$1], + lt_decl_tag_varnames([[, ]], m4_shift($@))))dnl +]) + + +# _LT_CONFIG_STATUS_DECLARE([VARNAME]) +# ------------------------------------ +# Quote a variable value, and forward it to 'config.status' so that its +# declaration there will have the same value as in 'configure'. VARNAME +# must have a single quote delimited value for this to work. +m4_define([_LT_CONFIG_STATUS_DECLARE], +[$1='`$ECHO "$][$1" | $SED "$delay_single_quote_subst"`']) + + +# _LT_CONFIG_STATUS_DECLARATIONS +# ------------------------------ +# We delimit libtool config variables with single quotes, so when +# we write them to config.status, we have to be sure to quote all +# embedded single quotes properly. In configure, this macro expands +# each variable declared with _LT_DECL (and _LT_TAGDECL) into: +# +# ='`$ECHO "$" | $SED "$delay_single_quote_subst"`' +m4_defun([_LT_CONFIG_STATUS_DECLARATIONS], +[m4_foreach([_lt_var], m4_quote(lt_decl_all_varnames), + [m4_n([_LT_CONFIG_STATUS_DECLARE(_lt_var)])])]) + + +# _LT_LIBTOOL_TAGS +# ---------------- +# Output comment and list of tags supported by the script +m4_defun([_LT_LIBTOOL_TAGS], +[_LT_FORMAT_COMMENT([The names of the tagged configurations supported by this script])dnl +available_tags='_LT_TAGS'dnl +]) + + +# _LT_LIBTOOL_DECLARE(VARNAME, [TAG]) +# ----------------------------------- +# Extract the dictionary values for VARNAME (optionally with TAG) and +# expand to a commented shell variable setting: +# +# # Some comment about what VAR is for. +# visible_name=$lt_internal_name +m4_define([_LT_LIBTOOL_DECLARE], +[_LT_FORMAT_COMMENT(m4_quote(lt_dict_fetch([lt_decl_dict], [$1], + [description])))[]dnl +m4_pushdef([_libtool_name], + m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [libtool_name])))[]dnl +m4_case(m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [value])), + [0], [_libtool_name=[$]$1], + [1], [_libtool_name=$lt_[]$1], + [2], [_libtool_name=$lt_[]$1], + [_libtool_name=lt_dict_fetch([lt_decl_dict], [$1], [value])])[]dnl +m4_ifval([$2], [_$2])[]m4_popdef([_libtool_name])[]dnl +]) + + +# _LT_LIBTOOL_CONFIG_VARS +# ----------------------- +# Produce commented declarations of non-tagged libtool config variables +# suitable for insertion in the LIBTOOL CONFIG section of the 'libtool' +# script. Tagged libtool config variables (even for the LIBTOOL CONFIG +# section) are produced by _LT_LIBTOOL_TAG_VARS. +m4_defun([_LT_LIBTOOL_CONFIG_VARS], +[m4_foreach([_lt_var], + m4_quote(_lt_decl_filter([tagged?], [no], [], lt_decl_varnames)), + [m4_n([_LT_LIBTOOL_DECLARE(_lt_var)])])]) + + +# _LT_LIBTOOL_TAG_VARS(TAG) +# ------------------------- +m4_define([_LT_LIBTOOL_TAG_VARS], +[m4_foreach([_lt_var], m4_quote(lt_decl_tag_varnames), + [m4_n([_LT_LIBTOOL_DECLARE(_lt_var, [$1])])])]) + + +# _LT_TAGVAR(VARNAME, [TAGNAME]) +# ------------------------------ +m4_define([_LT_TAGVAR], [m4_ifval([$2], [$1_$2], [$1])]) + + +# _LT_CONFIG_COMMANDS +# ------------------- +# Send accumulated output to $CONFIG_STATUS. Thanks to the lists of +# variables for single and double quote escaping we saved from calls +# to _LT_DECL, we can put quote escaped variables declarations +# into 'config.status', and then the shell code to quote escape them in +# for loops in 'config.status'. Finally, any additional code accumulated +# from calls to _LT_CONFIG_LIBTOOL_INIT is expanded. +m4_defun([_LT_CONFIG_COMMANDS], +[AC_PROVIDE_IFELSE([LT_OUTPUT], + dnl If the libtool generation code has been placed in $CONFIG_LT, + dnl instead of duplicating it all over again into config.status, + dnl then we will have config.status run $CONFIG_LT later, so it + dnl needs to know what name is stored there: + [AC_CONFIG_COMMANDS([libtool], + [$SHELL $CONFIG_LT || AS_EXIT(1)], [CONFIG_LT='$CONFIG_LT'])], + dnl If the libtool generation code is destined for config.status, + dnl expand the accumulated commands and init code now: + [AC_CONFIG_COMMANDS([libtool], + [_LT_OUTPUT_LIBTOOL_COMMANDS], [_LT_OUTPUT_LIBTOOL_COMMANDS_INIT])]) +])#_LT_CONFIG_COMMANDS + + +# Initialize. +m4_define([_LT_OUTPUT_LIBTOOL_COMMANDS_INIT], +[ + +# The HP-UX ksh and POSIX shell print the target directory to stdout +# if CDPATH is set. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + +sed_quote_subst='$sed_quote_subst' +double_quote_subst='$double_quote_subst' +delay_variable_subst='$delay_variable_subst' +_LT_CONFIG_STATUS_DECLARATIONS +LTCC='$LTCC' +LTCFLAGS='$LTCFLAGS' +compiler='$compiler_DEFAULT' + +# A function that is used when there is no print builtin or printf. +func_fallback_echo () +{ + eval 'cat <<_LTECHO_EOF +\$[]1 +_LTECHO_EOF' +} + +# Quote evaled strings. +for var in lt_decl_all_varnames([[ \ +]], lt_decl_quote_varnames); do + case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in + *[[\\\\\\\`\\"\\\$]]*) + eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes + ;; + *) + eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\"" + ;; + esac +done + +# Double-quote double-evaled strings. +for var in lt_decl_all_varnames([[ \ +]], lt_decl_dquote_varnames); do + case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in + *[[\\\\\\\`\\"\\\$]]*) + eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes + ;; + *) + eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\"" + ;; + esac +done + +_LT_OUTPUT_LIBTOOL_INIT +]) + +# _LT_GENERATED_FILE_INIT(FILE, [COMMENT]) +# ------------------------------------ +# Generate a child script FILE with all initialization necessary to +# reuse the environment learned by the parent script, and make the +# file executable. If COMMENT is supplied, it is inserted after the +# '#!' sequence but before initialization text begins. After this +# macro, additional text can be appended to FILE to form the body of +# the child script. The macro ends with non-zero status if the +# file could not be fully written (such as if the disk is full). +m4_ifdef([AS_INIT_GENERATED], +[m4_defun([_LT_GENERATED_FILE_INIT],[AS_INIT_GENERATED($@)])], +[m4_defun([_LT_GENERATED_FILE_INIT], +[m4_require([AS_PREPARE])]dnl +[m4_pushdef([AS_MESSAGE_LOG_FD])]dnl +[lt_write_fail=0 +cat >$1 <<_ASEOF || lt_write_fail=1 +#! $SHELL +# Generated by $as_me. +$2 +SHELL=\${CONFIG_SHELL-$SHELL} +export SHELL +_ASEOF +cat >>$1 <<\_ASEOF || lt_write_fail=1 +AS_SHELL_SANITIZE +_AS_PREPARE +exec AS_MESSAGE_FD>&1 +_ASEOF +test 0 = "$lt_write_fail" && chmod +x $1[]dnl +m4_popdef([AS_MESSAGE_LOG_FD])])])# _LT_GENERATED_FILE_INIT + +# LT_OUTPUT +# --------- +# This macro allows early generation of the libtool script (before +# AC_OUTPUT is called), incase it is used in configure for compilation +# tests. +AC_DEFUN([LT_OUTPUT], +[: ${CONFIG_LT=./config.lt} +AC_MSG_NOTICE([creating $CONFIG_LT]) +_LT_GENERATED_FILE_INIT(["$CONFIG_LT"], +[# Run this file to recreate a libtool stub with the current configuration.]) + +cat >>"$CONFIG_LT" <<\_LTEOF +lt_cl_silent=false +exec AS_MESSAGE_LOG_FD>>config.log +{ + echo + AS_BOX([Running $as_me.]) +} >&AS_MESSAGE_LOG_FD + +lt_cl_help="\ +'$as_me' creates a local libtool stub from the current configuration, +for use in further configure time tests before the real libtool is +generated. + +Usage: $[0] [[OPTIONS]] + + -h, --help print this help, then exit + -V, --version print version number, then exit + -q, --quiet do not print progress messages + -d, --debug don't remove temporary files + +Report bugs to ." + +lt_cl_version="\ +m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])config.lt[]dnl +m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION]) +configured by $[0], generated by m4_PACKAGE_STRING. + +Copyright (C) 2011 Free Software Foundation, Inc. +This config.lt script is free software; the Free Software Foundation +gives unlimited permision to copy, distribute and modify it." + +while test 0 != $[#] +do + case $[1] in + --version | --v* | -V ) + echo "$lt_cl_version"; exit 0 ;; + --help | --h* | -h ) + echo "$lt_cl_help"; exit 0 ;; + --debug | --d* | -d ) + debug=: ;; + --quiet | --q* | --silent | --s* | -q ) + lt_cl_silent=: ;; + + -*) AC_MSG_ERROR([unrecognized option: $[1] +Try '$[0] --help' for more information.]) ;; + + *) AC_MSG_ERROR([unrecognized argument: $[1] +Try '$[0] --help' for more information.]) ;; + esac + shift +done + +if $lt_cl_silent; then + exec AS_MESSAGE_FD>/dev/null +fi +_LTEOF + +cat >>"$CONFIG_LT" <<_LTEOF +_LT_OUTPUT_LIBTOOL_COMMANDS_INIT +_LTEOF + +cat >>"$CONFIG_LT" <<\_LTEOF +AC_MSG_NOTICE([creating $ofile]) +_LT_OUTPUT_LIBTOOL_COMMANDS +AS_EXIT(0) +_LTEOF +chmod +x "$CONFIG_LT" + +# configure is writing to config.log, but config.lt does its own redirection, +# appending to config.log, which fails on DOS, as config.log is still kept +# open by configure. Here we exec the FD to /dev/null, effectively closing +# config.log, so it can be properly (re)opened and appended to by config.lt. +lt_cl_success=: +test yes = "$silent" && + lt_config_lt_args="$lt_config_lt_args --quiet" +exec AS_MESSAGE_LOG_FD>/dev/null +$SHELL "$CONFIG_LT" $lt_config_lt_args || lt_cl_success=false +exec AS_MESSAGE_LOG_FD>>config.log +$lt_cl_success || AS_EXIT(1) +])# LT_OUTPUT + + +# _LT_CONFIG(TAG) +# --------------- +# If TAG is the built-in tag, create an initial libtool script with a +# default configuration from the untagged config vars. Otherwise add code +# to config.status for appending the configuration named by TAG from the +# matching tagged config vars. +m4_defun([_LT_CONFIG], +[m4_require([_LT_FILEUTILS_DEFAULTS])dnl +_LT_CONFIG_SAVE_COMMANDS([ + m4_define([_LT_TAG], m4_if([$1], [], [C], [$1]))dnl + m4_if(_LT_TAG, [C], [ + # See if we are running on zsh, and set the options that allow our + # commands through without removal of \ escapes. + if test -n "${ZSH_VERSION+set}"; then + setopt NO_GLOB_SUBST + fi + + cfgfile=${ofile}T + trap "$RM \"$cfgfile\"; exit 1" 1 2 15 + $RM "$cfgfile" + + cat <<_LT_EOF >> "$cfgfile" +#! $SHELL +# Generated automatically by $as_me ($PACKAGE) $VERSION +# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`: +# NOTE: Changes made to this file will be lost: look at ltmain.sh. + +# Provide generalized library-building support services. +# Written by Gordon Matzigkeit, 1996 + +_LT_COPYING +_LT_LIBTOOL_TAGS + +# Configured defaults for sys_lib_dlsearch_path munging. +: \${LT_SYS_LIBRARY_PATH="$configure_time_lt_sys_library_path"} + +# ### BEGIN LIBTOOL CONFIG +_LT_LIBTOOL_CONFIG_VARS +_LT_LIBTOOL_TAG_VARS +# ### END LIBTOOL CONFIG + +_LT_EOF + + cat <<'_LT_EOF' >> "$cfgfile" + +# ### BEGIN FUNCTIONS SHARED WITH CONFIGURE + +_LT_PREPARE_MUNGE_PATH_LIST +_LT_PREPARE_CC_BASENAME + +# ### END FUNCTIONS SHARED WITH CONFIGURE + +_LT_EOF + + case $host_os in + aix3*) + cat <<\_LT_EOF >> "$cfgfile" +# AIX sometimes has problems with the GCC collect2 program. For some +# reason, if we set the COLLECT_NAMES environment variable, the problems +# vanish in a puff of smoke. +if test set != "${COLLECT_NAMES+set}"; then + COLLECT_NAMES= + export COLLECT_NAMES +fi +_LT_EOF + ;; + esac + + _LT_PROG_LTMAIN + + # We use sed instead of cat because bash on DJGPP gets confused if + # if finds mixed CR/LF and LF-only lines. Since sed operates in + # text mode, it properly converts lines to CR/LF. This bash problem + # is reportedly fixed, but why not run on old versions too? + sed '$q' "$ltmain" >> "$cfgfile" \ + || (rm -f "$cfgfile"; exit 1) + + mv -f "$cfgfile" "$ofile" || + (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile") + chmod +x "$ofile" +], +[cat <<_LT_EOF >> "$ofile" + +dnl Unfortunately we have to use $1 here, since _LT_TAG is not expanded +dnl in a comment (ie after a #). +# ### BEGIN LIBTOOL TAG CONFIG: $1 +_LT_LIBTOOL_TAG_VARS(_LT_TAG) +# ### END LIBTOOL TAG CONFIG: $1 +_LT_EOF +])dnl /m4_if +], +[m4_if([$1], [], [ + PACKAGE='$PACKAGE' + VERSION='$VERSION' + RM='$RM' + ofile='$ofile'], []) +])dnl /_LT_CONFIG_SAVE_COMMANDS +])# _LT_CONFIG + + +# LT_SUPPORTED_TAG(TAG) +# --------------------- +# Trace this macro to discover what tags are supported by the libtool +# --tag option, using: +# autoconf --trace 'LT_SUPPORTED_TAG:$1' +AC_DEFUN([LT_SUPPORTED_TAG], []) + + +# C support is built-in for now +m4_define([_LT_LANG_C_enabled], []) +m4_define([_LT_TAGS], []) + + +# LT_LANG(LANG) +# ------------- +# Enable libtool support for the given language if not already enabled. +AC_DEFUN([LT_LANG], +[AC_BEFORE([$0], [LT_OUTPUT])dnl +m4_case([$1], + [C], [_LT_LANG(C)], + [C++], [_LT_LANG(CXX)], + [Go], [_LT_LANG(GO)], + [Java], [_LT_LANG(GCJ)], + [Fortran 77], [_LT_LANG(F77)], + [Fortran], [_LT_LANG(FC)], + [Windows Resource], [_LT_LANG(RC)], + [m4_ifdef([_LT_LANG_]$1[_CONFIG], + [_LT_LANG($1)], + [m4_fatal([$0: unsupported language: "$1"])])])dnl +])# LT_LANG + + +# _LT_LANG(LANGNAME) +# ------------------ +m4_defun([_LT_LANG], +[m4_ifdef([_LT_LANG_]$1[_enabled], [], + [LT_SUPPORTED_TAG([$1])dnl + m4_append([_LT_TAGS], [$1 ])dnl + m4_define([_LT_LANG_]$1[_enabled], [])dnl + _LT_LANG_$1_CONFIG($1)])dnl +])# _LT_LANG + + +m4_ifndef([AC_PROG_GO], [ +############################################################ +# NOTE: This macro has been submitted for inclusion into # +# GNU Autoconf as AC_PROG_GO. When it is available in # +# a released version of Autoconf we should remove this # +# macro and use it instead. # +############################################################ +m4_defun([AC_PROG_GO], +[AC_LANG_PUSH(Go)dnl +AC_ARG_VAR([GOC], [Go compiler command])dnl +AC_ARG_VAR([GOFLAGS], [Go compiler flags])dnl +_AC_ARG_VAR_LDFLAGS()dnl +AC_CHECK_TOOL(GOC, gccgo) +if test -z "$GOC"; then + if test -n "$ac_tool_prefix"; then + AC_CHECK_PROG(GOC, [${ac_tool_prefix}gccgo], [${ac_tool_prefix}gccgo]) + fi +fi +if test -z "$GOC"; then + AC_CHECK_PROG(GOC, gccgo, gccgo, false) +fi +])#m4_defun +])#m4_ifndef + + +# _LT_LANG_DEFAULT_CONFIG +# ----------------------- +m4_defun([_LT_LANG_DEFAULT_CONFIG], +[AC_PROVIDE_IFELSE([AC_PROG_CXX], + [LT_LANG(CXX)], + [m4_define([AC_PROG_CXX], defn([AC_PROG_CXX])[LT_LANG(CXX)])]) + +AC_PROVIDE_IFELSE([AC_PROG_F77], + [LT_LANG(F77)], + [m4_define([AC_PROG_F77], defn([AC_PROG_F77])[LT_LANG(F77)])]) + +AC_PROVIDE_IFELSE([AC_PROG_FC], + [LT_LANG(FC)], + [m4_define([AC_PROG_FC], defn([AC_PROG_FC])[LT_LANG(FC)])]) + +dnl The call to [A][M_PROG_GCJ] is quoted like that to stop aclocal +dnl pulling things in needlessly. +AC_PROVIDE_IFELSE([AC_PROG_GCJ], + [LT_LANG(GCJ)], + [AC_PROVIDE_IFELSE([A][M_PROG_GCJ], + [LT_LANG(GCJ)], + [AC_PROVIDE_IFELSE([LT_PROG_GCJ], + [LT_LANG(GCJ)], + [m4_ifdef([AC_PROG_GCJ], + [m4_define([AC_PROG_GCJ], defn([AC_PROG_GCJ])[LT_LANG(GCJ)])]) + m4_ifdef([A][M_PROG_GCJ], + [m4_define([A][M_PROG_GCJ], defn([A][M_PROG_GCJ])[LT_LANG(GCJ)])]) + m4_ifdef([LT_PROG_GCJ], + [m4_define([LT_PROG_GCJ], defn([LT_PROG_GCJ])[LT_LANG(GCJ)])])])])]) + +AC_PROVIDE_IFELSE([AC_PROG_GO], + [LT_LANG(GO)], + [m4_define([AC_PROG_GO], defn([AC_PROG_GO])[LT_LANG(GO)])]) + +AC_PROVIDE_IFELSE([LT_PROG_RC], + [LT_LANG(RC)], + [m4_define([LT_PROG_RC], defn([LT_PROG_RC])[LT_LANG(RC)])]) +])# _LT_LANG_DEFAULT_CONFIG + +# Obsolete macros: +AU_DEFUN([AC_LIBTOOL_CXX], [LT_LANG(C++)]) +AU_DEFUN([AC_LIBTOOL_F77], [LT_LANG(Fortran 77)]) +AU_DEFUN([AC_LIBTOOL_FC], [LT_LANG(Fortran)]) +AU_DEFUN([AC_LIBTOOL_GCJ], [LT_LANG(Java)]) +AU_DEFUN([AC_LIBTOOL_RC], [LT_LANG(Windows Resource)]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_CXX], []) +dnl AC_DEFUN([AC_LIBTOOL_F77], []) +dnl AC_DEFUN([AC_LIBTOOL_FC], []) +dnl AC_DEFUN([AC_LIBTOOL_GCJ], []) +dnl AC_DEFUN([AC_LIBTOOL_RC], []) + + +# _LT_TAG_COMPILER +# ---------------- +m4_defun([_LT_TAG_COMPILER], +[AC_REQUIRE([AC_PROG_CC])dnl + +_LT_DECL([LTCC], [CC], [1], [A C compiler])dnl +_LT_DECL([LTCFLAGS], [CFLAGS], [1], [LTCC compiler flags])dnl +_LT_TAGDECL([CC], [compiler], [1], [A language specific compiler])dnl +_LT_TAGDECL([with_gcc], [GCC], [0], [Is the compiler the GNU compiler?])dnl + +# If no C compiler was specified, use CC. +LTCC=${LTCC-"$CC"} + +# If no C compiler flags were specified, use CFLAGS. +LTCFLAGS=${LTCFLAGS-"$CFLAGS"} + +# Allow CC to be a program name with arguments. +compiler=$CC +])# _LT_TAG_COMPILER + + +# _LT_COMPILER_BOILERPLATE +# ------------------------ +# Check for compiler boilerplate output or warnings with +# the simple compiler test code. +m4_defun([_LT_COMPILER_BOILERPLATE], +[m4_require([_LT_DECL_SED])dnl +ac_outfile=conftest.$ac_objext +echo "$lt_simple_compile_test_code" >conftest.$ac_ext +eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err +_lt_compiler_boilerplate=`cat conftest.err` +$RM conftest* +])# _LT_COMPILER_BOILERPLATE + + +# _LT_LINKER_BOILERPLATE +# ---------------------- +# Check for linker boilerplate output or warnings with +# the simple link test code. +m4_defun([_LT_LINKER_BOILERPLATE], +[m4_require([_LT_DECL_SED])dnl +ac_outfile=conftest.$ac_objext +echo "$lt_simple_link_test_code" >conftest.$ac_ext +eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err +_lt_linker_boilerplate=`cat conftest.err` +$RM -r conftest* +])# _LT_LINKER_BOILERPLATE + +# _LT_REQUIRED_DARWIN_CHECKS +# ------------------------- +m4_defun_once([_LT_REQUIRED_DARWIN_CHECKS],[ + case $host_os in + rhapsody* | darwin*) + AC_CHECK_TOOL([DSYMUTIL], [dsymutil], [:]) + AC_CHECK_TOOL([NMEDIT], [nmedit], [:]) + AC_CHECK_TOOL([LIPO], [lipo], [:]) + AC_CHECK_TOOL([OTOOL], [otool], [:]) + AC_CHECK_TOOL([OTOOL64], [otool64], [:]) + _LT_DECL([], [DSYMUTIL], [1], + [Tool to manipulate archived DWARF debug symbol files on Mac OS X]) + _LT_DECL([], [NMEDIT], [1], + [Tool to change global to local symbols on Mac OS X]) + _LT_DECL([], [LIPO], [1], + [Tool to manipulate fat objects and archives on Mac OS X]) + _LT_DECL([], [OTOOL], [1], + [ldd/readelf like tool for Mach-O binaries on Mac OS X]) + _LT_DECL([], [OTOOL64], [1], + [ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4]) + + AC_CACHE_CHECK([for -single_module linker flag],[lt_cv_apple_cc_single_mod], + [lt_cv_apple_cc_single_mod=no + if test -z "$LT_MULTI_MODULE"; then + # By default we will add the -single_module flag. You can override + # by either setting the environment variable LT_MULTI_MODULE + # non-empty at configure time, or by adding -multi_module to the + # link flags. + rm -rf libconftest.dylib* + echo "int foo(void){return 1;}" > conftest.c + echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \ +-dynamiclib -Wl,-single_module conftest.c" >&AS_MESSAGE_LOG_FD + $LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \ + -dynamiclib -Wl,-single_module conftest.c 2>conftest.err + _lt_result=$? + # If there is a non-empty error log, and "single_module" + # appears in it, assume the flag caused a linker warning + if test -s conftest.err && $GREP single_module conftest.err; then + cat conftest.err >&AS_MESSAGE_LOG_FD + # Otherwise, if the output was created with a 0 exit code from + # the compiler, it worked. + elif test -f libconftest.dylib && test 0 = "$_lt_result"; then + lt_cv_apple_cc_single_mod=yes + else + cat conftest.err >&AS_MESSAGE_LOG_FD + fi + rm -rf libconftest.dylib* + rm -f conftest.* + fi]) + + AC_CACHE_CHECK([for -exported_symbols_list linker flag], + [lt_cv_ld_exported_symbols_list], + [lt_cv_ld_exported_symbols_list=no + save_LDFLAGS=$LDFLAGS + echo "_main" > conftest.sym + LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym" + AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])], + [lt_cv_ld_exported_symbols_list=yes], + [lt_cv_ld_exported_symbols_list=no]) + LDFLAGS=$save_LDFLAGS + ]) + + AC_CACHE_CHECK([for -force_load linker flag],[lt_cv_ld_force_load], + [lt_cv_ld_force_load=no + cat > conftest.c << _LT_EOF +int forced_loaded() { return 2;} +_LT_EOF + echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&AS_MESSAGE_LOG_FD + $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&AS_MESSAGE_LOG_FD + echo "$AR cru libconftest.a conftest.o" >&AS_MESSAGE_LOG_FD + $AR cru libconftest.a conftest.o 2>&AS_MESSAGE_LOG_FD + echo "$RANLIB libconftest.a" >&AS_MESSAGE_LOG_FD + $RANLIB libconftest.a 2>&AS_MESSAGE_LOG_FD + cat > conftest.c << _LT_EOF +int main() { return 0;} +_LT_EOF + echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&AS_MESSAGE_LOG_FD + $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err + _lt_result=$? + if test -s conftest.err && $GREP force_load conftest.err; then + cat conftest.err >&AS_MESSAGE_LOG_FD + elif test -f conftest && test 0 = "$_lt_result" && $GREP forced_load conftest >/dev/null 2>&1; then + lt_cv_ld_force_load=yes + else + cat conftest.err >&AS_MESSAGE_LOG_FD + fi + rm -f conftest.err libconftest.a conftest conftest.c + rm -rf conftest.dSYM + ]) + case $host_os in + rhapsody* | darwin1.[[012]]) + _lt_dar_allow_undefined='$wl-undefined ${wl}suppress' ;; + darwin1.*) + _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;; + darwin*) # darwin 5.x on + # if running on 10.5 or later, the deployment target defaults + # to the OS version, if on x86, and 10.4, the deployment + # target defaults to 10.4. Don't you love it? + case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in + 10.0,*86*-darwin8*|10.0,*-darwin[[91]]*) + _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;; + 10.[[012]][[,.]]*) + _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;; + 10.*) + _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;; + esac + ;; + esac + if test yes = "$lt_cv_apple_cc_single_mod"; then + _lt_dar_single_mod='$single_module' + fi + if test yes = "$lt_cv_ld_exported_symbols_list"; then + _lt_dar_export_syms=' $wl-exported_symbols_list,$output_objdir/$libname-symbols.expsym' + else + _lt_dar_export_syms='~$NMEDIT -s $output_objdir/$libname-symbols.expsym $lib' + fi + if test : != "$DSYMUTIL" && test no = "$lt_cv_ld_force_load"; then + _lt_dsymutil='~$DSYMUTIL $lib || :' + else + _lt_dsymutil= + fi + ;; + esac +]) + + +# _LT_DARWIN_LINKER_FEATURES([TAG]) +# --------------------------------- +# Checks for linker and compiler features on darwin +m4_defun([_LT_DARWIN_LINKER_FEATURES], +[ + m4_require([_LT_REQUIRED_DARWIN_CHECKS]) + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_automatic, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported + if test yes = "$lt_cv_ld_force_load"; then + _LT_TAGVAR(whole_archive_flag_spec, $1)='`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience $wl-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`' + m4_case([$1], [F77], [_LT_TAGVAR(compiler_needs_object, $1)=yes], + [FC], [_LT_TAGVAR(compiler_needs_object, $1)=yes]) + else + _LT_TAGVAR(whole_archive_flag_spec, $1)='' + fi + _LT_TAGVAR(link_all_deplibs, $1)=yes + _LT_TAGVAR(allow_undefined_flag, $1)=$_lt_dar_allow_undefined + case $cc_basename in + ifort*|nagfor*) _lt_dar_can_shared=yes ;; + *) _lt_dar_can_shared=$GCC ;; + esac + if test yes = "$_lt_dar_can_shared"; then + output_verbose_link_cmd=func_echo_all + _LT_TAGVAR(archive_cmds, $1)="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dsymutil" + _LT_TAGVAR(module_cmds, $1)="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dsymutil" + _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dar_export_syms$_lt_dsymutil" + _LT_TAGVAR(module_expsym_cmds, $1)="sed -e 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dar_export_syms$_lt_dsymutil" + m4_if([$1], [CXX], +[ if test yes != "$lt_cv_apple_cc_single_mod"; then + _LT_TAGVAR(archive_cmds, $1)="\$CC -r -keep_private_externs -nostdlib -o \$lib-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$lib-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring$_lt_dsymutil" + _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -r -keep_private_externs -nostdlib -o \$lib-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$lib-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring$_lt_dar_export_syms$_lt_dsymutil" + fi +],[]) + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi +]) + +# _LT_SYS_MODULE_PATH_AIX([TAGNAME]) +# ---------------------------------- +# Links a minimal program and checks the executable +# for the system default hardcoded library path. In most cases, +# this is /usr/lib:/lib, but when the MPI compilers are used +# the location of the communication and MPI libs are included too. +# If we don't find anything, use the default library path according +# to the aix ld manual. +# Store the results from the different compilers for each TAGNAME. +# Allow to override them for all tags through lt_cv_aix_libpath. +m4_defun([_LT_SYS_MODULE_PATH_AIX], +[m4_require([_LT_DECL_SED])dnl +if test set = "${lt_cv_aix_libpath+set}"; then + aix_libpath=$lt_cv_aix_libpath +else + AC_CACHE_VAL([_LT_TAGVAR([lt_cv_aix_libpath_], [$1])], + [AC_LINK_IFELSE([AC_LANG_PROGRAM],[ + lt_aix_libpath_sed='[ + /Import File Strings/,/^$/ { + /^0/ { + s/^0 *\([^ ]*\) *$/\1/ + p + } + }]' + _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + # Check for a 64-bit object if we didn't find anything. + if test -z "$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])"; then + _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` + fi],[]) + if test -z "$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])"; then + _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=/usr/lib:/lib + fi + ]) + aix_libpath=$_LT_TAGVAR([lt_cv_aix_libpath_], [$1]) +fi +])# _LT_SYS_MODULE_PATH_AIX + + +# _LT_SHELL_INIT(ARG) +# ------------------- +m4_define([_LT_SHELL_INIT], +[m4_divert_text([M4SH-INIT], [$1 +])])# _LT_SHELL_INIT + + + +# _LT_PROG_ECHO_BACKSLASH +# ----------------------- +# Find how we can fake an echo command that does not interpret backslash. +# In particular, with Autoconf 2.60 or later we add some code to the start +# of the generated configure script that will find a shell with a builtin +# printf (that we can use as an echo command). +m4_defun([_LT_PROG_ECHO_BACKSLASH], +[ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' +ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO +ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO + +AC_MSG_CHECKING([how to print strings]) +# Test print first, because it will be a builtin if present. +if test "X`( print -r -- -n ) 2>/dev/null`" = X-n && \ + test "X`print -r -- $ECHO 2>/dev/null`" = "X$ECHO"; then + ECHO='print -r --' +elif test "X`printf %s $ECHO 2>/dev/null`" = "X$ECHO"; then + ECHO='printf %s\n' +else + # Use this function as a fallback that always works. + func_fallback_echo () + { + eval 'cat <<_LTECHO_EOF +$[]1 +_LTECHO_EOF' + } + ECHO='func_fallback_echo' +fi + +# func_echo_all arg... +# Invoke $ECHO with all args, space-separated. +func_echo_all () +{ + $ECHO "$*" +} + +case $ECHO in + printf*) AC_MSG_RESULT([printf]) ;; + print*) AC_MSG_RESULT([print -r]) ;; + *) AC_MSG_RESULT([cat]) ;; +esac + +m4_ifdef([_AS_DETECT_SUGGESTED], +[_AS_DETECT_SUGGESTED([ + test -n "${ZSH_VERSION+set}${BASH_VERSION+set}" || ( + ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' + ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO + ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO + PATH=/empty FPATH=/empty; export PATH FPATH + test "X`printf %s $ECHO`" = "X$ECHO" \ + || test "X`print -r -- $ECHO`" = "X$ECHO" )])]) + +_LT_DECL([], [SHELL], [1], [Shell to use when invoking shell scripts]) +_LT_DECL([], [ECHO], [1], [An echo program that protects backslashes]) +])# _LT_PROG_ECHO_BACKSLASH + + +# _LT_WITH_SYSROOT +# ---------------- +AC_DEFUN([_LT_WITH_SYSROOT], +[AC_MSG_CHECKING([for sysroot]) +AC_ARG_WITH([sysroot], +[AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@], + [Search for dependent libraries within DIR (or the compiler's sysroot + if not specified).])], +[], [with_sysroot=no]) + +dnl lt_sysroot will always be passed unquoted. We quote it here +dnl in case the user passed a directory name. +lt_sysroot= +case $with_sysroot in #( + yes) + if test yes = "$GCC"; then + lt_sysroot=`$CC --print-sysroot 2>/dev/null` + fi + ;; #( + /*) + lt_sysroot=`echo "$with_sysroot" | sed -e "$sed_quote_subst"` + ;; #( + no|'') + ;; #( + *) + AC_MSG_RESULT([$with_sysroot]) + AC_MSG_ERROR([The sysroot must be an absolute path.]) + ;; +esac + + AC_MSG_RESULT([${lt_sysroot:-no}]) +_LT_DECL([], [lt_sysroot], [0], [The root where to search for ]dnl +[dependent libraries, and where our libraries should be installed.])]) + +# _LT_ENABLE_LOCK +# --------------- +m4_defun([_LT_ENABLE_LOCK], +[AC_ARG_ENABLE([libtool-lock], + [AS_HELP_STRING([--disable-libtool-lock], + [avoid locking (might break parallel builds)])]) +test no = "$enable_libtool_lock" || enable_libtool_lock=yes + +# Some flags need to be propagated to the compiler or linker for good +# libtool support. +case $host in +ia64-*-hpux*) + # Find out what ABI is being produced by ac_compile, and set mode + # options accordingly. + echo 'int i;' > conftest.$ac_ext + if AC_TRY_EVAL(ac_compile); then + case `/usr/bin/file conftest.$ac_objext` in + *ELF-32*) + HPUX_IA64_MODE=32 + ;; + *ELF-64*) + HPUX_IA64_MODE=64 + ;; + esac + fi + rm -rf conftest* + ;; +*-*-irix6*) + # Find out what ABI is being produced by ac_compile, and set linker + # options accordingly. + echo '[#]line '$LINENO' "configure"' > conftest.$ac_ext + if AC_TRY_EVAL(ac_compile); then + if test yes = "$lt_cv_prog_gnu_ld"; then + case `/usr/bin/file conftest.$ac_objext` in + *32-bit*) + LD="${LD-ld} -melf32bsmip" + ;; + *N32*) + LD="${LD-ld} -melf32bmipn32" + ;; + *64-bit*) + LD="${LD-ld} -melf64bmip" + ;; + esac + else + case `/usr/bin/file conftest.$ac_objext` in + *32-bit*) + LD="${LD-ld} -32" + ;; + *N32*) + LD="${LD-ld} -n32" + ;; + *64-bit*) + LD="${LD-ld} -64" + ;; + esac + fi + fi + rm -rf conftest* + ;; + +mips64*-*linux*) + # Find out what ABI is being produced by ac_compile, and set linker + # options accordingly. + echo '[#]line '$LINENO' "configure"' > conftest.$ac_ext + if AC_TRY_EVAL(ac_compile); then + emul=elf + case `/usr/bin/file conftest.$ac_objext` in + *32-bit*) + emul="${emul}32" + ;; + *64-bit*) + emul="${emul}64" + ;; + esac + case `/usr/bin/file conftest.$ac_objext` in + *MSB*) + emul="${emul}btsmip" + ;; + *LSB*) + emul="${emul}ltsmip" + ;; + esac + case `/usr/bin/file conftest.$ac_objext` in + *N32*) + emul="${emul}n32" + ;; + esac + LD="${LD-ld} -m $emul" + fi + rm -rf conftest* + ;; + +x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \ +s390*-*linux*|s390*-*tpf*|sparc*-*linux*) + # Find out what ABI is being produced by ac_compile, and set linker + # options accordingly. Note that the listed cases only cover the + # situations where additional linker options are needed (such as when + # doing 32-bit compilation for a host where ld defaults to 64-bit, or + # vice versa); the common cases where no linker options are needed do + # not appear in the list. + echo 'int i;' > conftest.$ac_ext + if AC_TRY_EVAL(ac_compile); then + case `/usr/bin/file conftest.o` in + *32-bit*) + case $host in + x86_64-*kfreebsd*-gnu) + LD="${LD-ld} -m elf_i386_fbsd" + ;; + x86_64-*linux*) + case `/usr/bin/file conftest.o` in + *x86-64*) + LD="${LD-ld} -m elf32_x86_64" + ;; + *) + LD="${LD-ld} -m elf_i386" + ;; + esac + ;; + powerpc64le-*linux*) + LD="${LD-ld} -m elf32lppclinux" + ;; + powerpc64-*linux*) + LD="${LD-ld} -m elf32ppclinux" + ;; + s390x-*linux*) + LD="${LD-ld} -m elf_s390" + ;; + sparc64-*linux*) + LD="${LD-ld} -m elf32_sparc" + ;; + esac + ;; + *64-bit*) + case $host in + x86_64-*kfreebsd*-gnu) + LD="${LD-ld} -m elf_x86_64_fbsd" + ;; + x86_64-*linux*) + LD="${LD-ld} -m elf_x86_64" + ;; + powerpcle-*linux*) + LD="${LD-ld} -m elf64lppc" + ;; + powerpc-*linux*) + LD="${LD-ld} -m elf64ppc" + ;; + s390*-*linux*|s390*-*tpf*) + LD="${LD-ld} -m elf64_s390" + ;; + sparc*-*linux*) + LD="${LD-ld} -m elf64_sparc" + ;; + esac + ;; + esac + fi + rm -rf conftest* + ;; + +*-*-sco3.2v5*) + # On SCO OpenServer 5, we need -belf to get full-featured binaries. + SAVE_CFLAGS=$CFLAGS + CFLAGS="$CFLAGS -belf" + AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf, + [AC_LANG_PUSH(C) + AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no]) + AC_LANG_POP]) + if test yes != "$lt_cv_cc_needs_belf"; then + # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf + CFLAGS=$SAVE_CFLAGS + fi + ;; +*-*solaris*) + # Find out what ABI is being produced by ac_compile, and set linker + # options accordingly. + echo 'int i;' > conftest.$ac_ext + if AC_TRY_EVAL(ac_compile); then + case `/usr/bin/file conftest.o` in + *64-bit*) + case $lt_cv_prog_gnu_ld in + yes*) + case $host in + i?86-*-solaris*|x86_64-*-solaris*) + LD="${LD-ld} -m elf_x86_64" + ;; + sparc*-*-solaris*) + LD="${LD-ld} -m elf64_sparc" + ;; + esac + # GNU ld 2.21 introduced _sol2 emulations. Use them if available. + if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then + LD=${LD-ld}_sol2 + fi + ;; + *) + if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then + LD="${LD-ld} -64" + fi + ;; + esac + ;; + esac + fi + rm -rf conftest* + ;; +esac + +need_locks=$enable_libtool_lock +])# _LT_ENABLE_LOCK + + +# _LT_PROG_AR +# ----------- +m4_defun([_LT_PROG_AR], +[AC_CHECK_TOOLS(AR, [ar], false) +: ${AR=ar} +: ${AR_FLAGS=cru} +_LT_DECL([], [AR], [1], [The archiver]) +_LT_DECL([], [AR_FLAGS], [1], [Flags to create an archive]) + +AC_CACHE_CHECK([for archiver @FILE support], [lt_cv_ar_at_file], + [lt_cv_ar_at_file=no + AC_COMPILE_IFELSE([AC_LANG_PROGRAM], + [echo conftest.$ac_objext > conftest.lst + lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&AS_MESSAGE_LOG_FD' + AC_TRY_EVAL([lt_ar_try]) + if test 0 -eq "$ac_status"; then + # Ensure the archiver fails upon bogus file names. + rm -f conftest.$ac_objext libconftest.a + AC_TRY_EVAL([lt_ar_try]) + if test 0 -ne "$ac_status"; then + lt_cv_ar_at_file=@ + fi + fi + rm -f conftest.* libconftest.a + ]) + ]) + +if test no = "$lt_cv_ar_at_file"; then + archiver_list_spec= +else + archiver_list_spec=$lt_cv_ar_at_file +fi +_LT_DECL([], [archiver_list_spec], [1], + [How to feed a file listing to the archiver]) +])# _LT_PROG_AR + + +# _LT_CMD_OLD_ARCHIVE +# ------------------- +m4_defun([_LT_CMD_OLD_ARCHIVE], +[_LT_PROG_AR + +AC_CHECK_TOOL(STRIP, strip, :) +test -z "$STRIP" && STRIP=: +_LT_DECL([], [STRIP], [1], [A symbol stripping program]) + +AC_CHECK_TOOL(RANLIB, ranlib, :) +test -z "$RANLIB" && RANLIB=: +_LT_DECL([], [RANLIB], [1], + [Commands used to install an old-style archive]) + +# Determine commands to create old-style static archives. +old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs' +old_postinstall_cmds='chmod 644 $oldlib' +old_postuninstall_cmds= + +if test -n "$RANLIB"; then + case $host_os in + bitrig* | openbsd*) + old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib" + ;; + *) + old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib" + ;; + esac + old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib" +fi + +case $host_os in + darwin*) + lock_old_archive_extraction=yes ;; + *) + lock_old_archive_extraction=no ;; +esac +_LT_DECL([], [old_postinstall_cmds], [2]) +_LT_DECL([], [old_postuninstall_cmds], [2]) +_LT_TAGDECL([], [old_archive_cmds], [2], + [Commands used to build an old-style archive]) +_LT_DECL([], [lock_old_archive_extraction], [0], + [Whether to use a lock for old archive extraction]) +])# _LT_CMD_OLD_ARCHIVE + + +# _LT_COMPILER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS, +# [OUTPUT-FILE], [ACTION-SUCCESS], [ACTION-FAILURE]) +# ---------------------------------------------------------------- +# Check whether the given compiler option works +AC_DEFUN([_LT_COMPILER_OPTION], +[m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_DECL_SED])dnl +AC_CACHE_CHECK([$1], [$2], + [$2=no + m4_if([$4], , [ac_outfile=conftest.$ac_objext], [ac_outfile=$4]) + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + lt_compiler_flag="$3" ## exclude from sc_useless_quotes_in_assignment + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + # The option is referenced via a variable to avoid confusing sed. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&AS_MESSAGE_LOG_FD) + (eval "$lt_compile" 2>conftest.err) + ac_status=$? + cat conftest.err >&AS_MESSAGE_LOG_FD + echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD + if (exit $ac_status) && test -s "$ac_outfile"; then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings other than the usual output. + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then + $2=yes + fi + fi + $RM conftest* +]) + +if test yes = "[$]$2"; then + m4_if([$5], , :, [$5]) +else + m4_if([$6], , :, [$6]) +fi +])# _LT_COMPILER_OPTION + +# Old name: +AU_ALIAS([AC_LIBTOOL_COMPILER_OPTION], [_LT_COMPILER_OPTION]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_COMPILER_OPTION], []) + + +# _LT_LINKER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS, +# [ACTION-SUCCESS], [ACTION-FAILURE]) +# ---------------------------------------------------- +# Check whether the given linker option works +AC_DEFUN([_LT_LINKER_OPTION], +[m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_DECL_SED])dnl +AC_CACHE_CHECK([$1], [$2], + [$2=no + save_LDFLAGS=$LDFLAGS + LDFLAGS="$LDFLAGS $3" + echo "$lt_simple_link_test_code" > conftest.$ac_ext + if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then + # The linker can only warn and ignore the option if not recognized + # So say no if there are warnings + if test -s conftest.err; then + # Append any errors to the config.log. + cat conftest.err 1>&AS_MESSAGE_LOG_FD + $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp + $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 + if diff conftest.exp conftest.er2 >/dev/null; then + $2=yes + fi + else + $2=yes + fi + fi + $RM -r conftest* + LDFLAGS=$save_LDFLAGS +]) + +if test yes = "[$]$2"; then + m4_if([$4], , :, [$4]) +else + m4_if([$5], , :, [$5]) +fi +])# _LT_LINKER_OPTION + +# Old name: +AU_ALIAS([AC_LIBTOOL_LINKER_OPTION], [_LT_LINKER_OPTION]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_LINKER_OPTION], []) + + +# LT_CMD_MAX_LEN +#--------------- +AC_DEFUN([LT_CMD_MAX_LEN], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +# find the maximum length of command line arguments +AC_MSG_CHECKING([the maximum length of command line arguments]) +AC_CACHE_VAL([lt_cv_sys_max_cmd_len], [dnl + i=0 + teststring=ABCD + + case $build_os in + msdosdjgpp*) + # On DJGPP, this test can blow up pretty badly due to problems in libc + # (any single argument exceeding 2000 bytes causes a buffer overrun + # during glob expansion). Even if it were fixed, the result of this + # check would be larger than it should be. + lt_cv_sys_max_cmd_len=12288; # 12K is about right + ;; + + gnu*) + # Under GNU Hurd, this test is not required because there is + # no limit to the length of command line arguments. + # Libtool will interpret -1 as no limit whatsoever + lt_cv_sys_max_cmd_len=-1; + ;; + + cygwin* | mingw* | cegcc*) + # On Win9x/ME, this test blows up -- it succeeds, but takes + # about 5 minutes as the teststring grows exponentially. + # Worse, since 9x/ME are not pre-emptively multitasking, + # you end up with a "frozen" computer, even though with patience + # the test eventually succeeds (with a max line length of 256k). + # Instead, let's just punt: use the minimum linelength reported by + # all of the supported platforms: 8192 (on NT/2K/XP). + lt_cv_sys_max_cmd_len=8192; + ;; + + mint*) + # On MiNT this can take a long time and run out of memory. + lt_cv_sys_max_cmd_len=8192; + ;; + + amigaos*) + # On AmigaOS with pdksh, this test takes hours, literally. + # So we just punt and use a minimum line length of 8192. + lt_cv_sys_max_cmd_len=8192; + ;; + + bitrig* | darwin* | dragonfly* | freebsd* | netbsd* | openbsd*) + # This has been around since 386BSD, at least. Likely further. + if test -x /sbin/sysctl; then + lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax` + elif test -x /usr/sbin/sysctl; then + lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax` + else + lt_cv_sys_max_cmd_len=65536 # usable default for all BSDs + fi + # And add a safety zone + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` + ;; + + interix*) + # We know the value 262144 and hardcode it with a safety zone (like BSD) + lt_cv_sys_max_cmd_len=196608 + ;; + + os2*) + # The test takes a long time on OS/2. + lt_cv_sys_max_cmd_len=8192 + ;; + + osf*) + # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure + # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not + # nice to cause kernel panics so lets avoid the loop below. + # First set a reasonable default. + lt_cv_sys_max_cmd_len=16384 + # + if test -x /sbin/sysconfig; then + case `/sbin/sysconfig -q proc exec_disable_arg_limit` in + *1*) lt_cv_sys_max_cmd_len=-1 ;; + esac + fi + ;; + sco3.2v5*) + lt_cv_sys_max_cmd_len=102400 + ;; + sysv5* | sco5v6* | sysv4.2uw2*) + kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null` + if test -n "$kargmax"; then + lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[[ ]]//'` + else + lt_cv_sys_max_cmd_len=32768 + fi + ;; + *) + lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null` + if test -n "$lt_cv_sys_max_cmd_len" && \ + test undefined != "$lt_cv_sys_max_cmd_len"; then + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` + else + # Make teststring a little bigger before we do anything with it. + # a 1K string should be a reasonable start. + for i in 1 2 3 4 5 6 7 8; do + teststring=$teststring$teststring + done + SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}} + # If test is not a shell built-in, we'll probably end up computing a + # maximum length that is only half of the actual maximum length, but + # we can't tell. + while { test X`env echo "$teststring$teststring" 2>/dev/null` \ + = "X$teststring$teststring"; } >/dev/null 2>&1 && + test 17 != "$i" # 1/2 MB should be enough + do + i=`expr $i + 1` + teststring=$teststring$teststring + done + # Only check the string length outside the loop. + lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1` + teststring= + # Add a significant safety factor because C++ compilers can tack on + # massive amounts of additional arguments before passing them to the + # linker. It appears as though 1/2 is a usable value. + lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2` + fi + ;; + esac +]) +if test -n "$lt_cv_sys_max_cmd_len"; then + AC_MSG_RESULT($lt_cv_sys_max_cmd_len) +else + AC_MSG_RESULT(none) +fi +max_cmd_len=$lt_cv_sys_max_cmd_len +_LT_DECL([], [max_cmd_len], [0], + [What is the maximum length of a command?]) +])# LT_CMD_MAX_LEN + +# Old name: +AU_ALIAS([AC_LIBTOOL_SYS_MAX_CMD_LEN], [LT_CMD_MAX_LEN]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_SYS_MAX_CMD_LEN], []) + + +# _LT_HEADER_DLFCN +# ---------------- +m4_defun([_LT_HEADER_DLFCN], +[AC_CHECK_HEADERS([dlfcn.h], [], [], [AC_INCLUDES_DEFAULT])dnl +])# _LT_HEADER_DLFCN + + +# _LT_TRY_DLOPEN_SELF (ACTION-IF-TRUE, ACTION-IF-TRUE-W-USCORE, +# ACTION-IF-FALSE, ACTION-IF-CROSS-COMPILING) +# ---------------------------------------------------------------- +m4_defun([_LT_TRY_DLOPEN_SELF], +[m4_require([_LT_HEADER_DLFCN])dnl +if test yes = "$cross_compiling"; then : + [$4] +else + lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 + lt_status=$lt_dlunknown + cat > conftest.$ac_ext <<_LT_EOF +[#line $LINENO "configure" +#include "confdefs.h" + +#if HAVE_DLFCN_H +#include +#endif + +#include + +#ifdef RTLD_GLOBAL +# define LT_DLGLOBAL RTLD_GLOBAL +#else +# ifdef DL_GLOBAL +# define LT_DLGLOBAL DL_GLOBAL +# else +# define LT_DLGLOBAL 0 +# endif +#endif + +/* We may have to define LT_DLLAZY_OR_NOW in the command line if we + find out it does not work in some platform. */ +#ifndef LT_DLLAZY_OR_NOW +# ifdef RTLD_LAZY +# define LT_DLLAZY_OR_NOW RTLD_LAZY +# else +# ifdef DL_LAZY +# define LT_DLLAZY_OR_NOW DL_LAZY +# else +# ifdef RTLD_NOW +# define LT_DLLAZY_OR_NOW RTLD_NOW +# else +# ifdef DL_NOW +# define LT_DLLAZY_OR_NOW DL_NOW +# else +# define LT_DLLAZY_OR_NOW 0 +# endif +# endif +# endif +# endif +#endif + +/* When -fvisibility=hidden is used, assume the code has been annotated + correspondingly for the symbols needed. */ +#if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3)) +int fnord () __attribute__((visibility("default"))); +#endif + +int fnord () { return 42; } +int main () +{ + void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW); + int status = $lt_dlunknown; + + if (self) + { + if (dlsym (self,"fnord")) status = $lt_dlno_uscore; + else + { + if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore; + else puts (dlerror ()); + } + /* dlclose (self); */ + } + else + puts (dlerror ()); + + return status; +}] +_LT_EOF + if AC_TRY_EVAL(ac_link) && test -s "conftest$ac_exeext" 2>/dev/null; then + (./conftest; exit; ) >&AS_MESSAGE_LOG_FD 2>/dev/null + lt_status=$? + case x$lt_status in + x$lt_dlno_uscore) $1 ;; + x$lt_dlneed_uscore) $2 ;; + x$lt_dlunknown|x*) $3 ;; + esac + else : + # compilation failed + $3 + fi +fi +rm -fr conftest* +])# _LT_TRY_DLOPEN_SELF + + +# LT_SYS_DLOPEN_SELF +# ------------------ +AC_DEFUN([LT_SYS_DLOPEN_SELF], +[m4_require([_LT_HEADER_DLFCN])dnl +if test yes != "$enable_dlopen"; then + enable_dlopen=unknown + enable_dlopen_self=unknown + enable_dlopen_self_static=unknown +else + lt_cv_dlopen=no + lt_cv_dlopen_libs= + + case $host_os in + beos*) + lt_cv_dlopen=load_add_on + lt_cv_dlopen_libs= + lt_cv_dlopen_self=yes + ;; + + mingw* | pw32* | cegcc*) + lt_cv_dlopen=LoadLibrary + lt_cv_dlopen_libs= + ;; + + cygwin*) + lt_cv_dlopen=dlopen + lt_cv_dlopen_libs= + ;; + + darwin*) + # if libdl is installed we need to link against it + AC_CHECK_LIB([dl], [dlopen], + [lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl],[ + lt_cv_dlopen=dyld + lt_cv_dlopen_libs= + lt_cv_dlopen_self=yes + ]) + ;; + + tpf*) + # Don't try to run any link tests for TPF. We know it's impossible + # because TPF is a cross-compiler, and we know how we open DSOs. + lt_cv_dlopen=dlopen + lt_cv_dlopen_libs= + lt_cv_dlopen_self=no + ;; + + *) + AC_CHECK_FUNC([shl_load], + [lt_cv_dlopen=shl_load], + [AC_CHECK_LIB([dld], [shl_load], + [lt_cv_dlopen=shl_load lt_cv_dlopen_libs=-ldld], + [AC_CHECK_FUNC([dlopen], + [lt_cv_dlopen=dlopen], + [AC_CHECK_LIB([dl], [dlopen], + [lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl], + [AC_CHECK_LIB([svld], [dlopen], + [lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-lsvld], + [AC_CHECK_LIB([dld], [dld_link], + [lt_cv_dlopen=dld_link lt_cv_dlopen_libs=-ldld]) + ]) + ]) + ]) + ]) + ]) + ;; + esac + + if test no = "$lt_cv_dlopen"; then + enable_dlopen=no + else + enable_dlopen=yes + fi + + case $lt_cv_dlopen in + dlopen) + save_CPPFLAGS=$CPPFLAGS + test yes = "$ac_cv_header_dlfcn_h" && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H" + + save_LDFLAGS=$LDFLAGS + wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\" + + save_LIBS=$LIBS + LIBS="$lt_cv_dlopen_libs $LIBS" + + AC_CACHE_CHECK([whether a program can dlopen itself], + lt_cv_dlopen_self, [dnl + _LT_TRY_DLOPEN_SELF( + lt_cv_dlopen_self=yes, lt_cv_dlopen_self=yes, + lt_cv_dlopen_self=no, lt_cv_dlopen_self=cross) + ]) + + if test yes = "$lt_cv_dlopen_self"; then + wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\" + AC_CACHE_CHECK([whether a statically linked program can dlopen itself], + lt_cv_dlopen_self_static, [dnl + _LT_TRY_DLOPEN_SELF( + lt_cv_dlopen_self_static=yes, lt_cv_dlopen_self_static=yes, + lt_cv_dlopen_self_static=no, lt_cv_dlopen_self_static=cross) + ]) + fi + + CPPFLAGS=$save_CPPFLAGS + LDFLAGS=$save_LDFLAGS + LIBS=$save_LIBS + ;; + esac + + case $lt_cv_dlopen_self in + yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;; + *) enable_dlopen_self=unknown ;; + esac + + case $lt_cv_dlopen_self_static in + yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;; + *) enable_dlopen_self_static=unknown ;; + esac +fi +_LT_DECL([dlopen_support], [enable_dlopen], [0], + [Whether dlopen is supported]) +_LT_DECL([dlopen_self], [enable_dlopen_self], [0], + [Whether dlopen of programs is supported]) +_LT_DECL([dlopen_self_static], [enable_dlopen_self_static], [0], + [Whether dlopen of statically linked programs is supported]) +])# LT_SYS_DLOPEN_SELF + +# Old name: +AU_ALIAS([AC_LIBTOOL_DLOPEN_SELF], [LT_SYS_DLOPEN_SELF]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_DLOPEN_SELF], []) + + +# _LT_COMPILER_C_O([TAGNAME]) +# --------------------------- +# Check to see if options -c and -o are simultaneously supported by compiler. +# This macro does not hard code the compiler like AC_PROG_CC_C_O. +m4_defun([_LT_COMPILER_C_O], +[m4_require([_LT_DECL_SED])dnl +m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_TAG_COMPILER])dnl +AC_CACHE_CHECK([if $compiler supports -c -o file.$ac_objext], + [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)], + [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=no + $RM -r conftest 2>/dev/null + mkdir conftest + cd conftest + mkdir out + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + + lt_compiler_flag="-o out/conftest2.$ac_objext" + # Insert the option either (1) after the last *FLAGS variable, or + # (2) before a word containing "conftest.", or (3) at the end. + # Note that $ac_compile itself does not contain backslashes and begins + # with a dollar sign (not a hyphen), so the echo should work correctly. + lt_compile=`echo "$ac_compile" | $SED \ + -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ + -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` + (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&AS_MESSAGE_LOG_FD) + (eval "$lt_compile" 2>out/conftest.err) + ac_status=$? + cat out/conftest.err >&AS_MESSAGE_LOG_FD + echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD + if (exit $ac_status) && test -s out/conftest2.$ac_objext + then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings + $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp + $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2 + if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then + _LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes + fi + fi + chmod u+w . 2>&AS_MESSAGE_LOG_FD + $RM conftest* + # SGI C++ compiler will create directory out/ii_files/ for + # template instantiation + test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files + $RM out/* && rmdir out + cd .. + $RM -r conftest + $RM conftest* +]) +_LT_TAGDECL([compiler_c_o], [lt_cv_prog_compiler_c_o], [1], + [Does compiler simultaneously support -c and -o options?]) +])# _LT_COMPILER_C_O + + +# _LT_COMPILER_FILE_LOCKS([TAGNAME]) +# ---------------------------------- +# Check to see if we can do hard links to lock some files if needed +m4_defun([_LT_COMPILER_FILE_LOCKS], +[m4_require([_LT_ENABLE_LOCK])dnl +m4_require([_LT_FILEUTILS_DEFAULTS])dnl +_LT_COMPILER_C_O([$1]) + +hard_links=nottested +if test no = "$_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)" && test no != "$need_locks"; then + # do not overwrite the value of need_locks provided by the user + AC_MSG_CHECKING([if we can lock with hard links]) + hard_links=yes + $RM conftest* + ln conftest.a conftest.b 2>/dev/null && hard_links=no + touch conftest.a + ln conftest.a conftest.b 2>&5 || hard_links=no + ln conftest.a conftest.b 2>/dev/null && hard_links=no + AC_MSG_RESULT([$hard_links]) + if test no = "$hard_links"; then + AC_MSG_WARN(['$CC' does not support '-c -o', so 'make -j' may be unsafe]) + need_locks=warn + fi +else + need_locks=no +fi +_LT_DECL([], [need_locks], [1], [Must we lock files when doing compilation?]) +])# _LT_COMPILER_FILE_LOCKS + + +# _LT_CHECK_OBJDIR +# ---------------- +m4_defun([_LT_CHECK_OBJDIR], +[AC_CACHE_CHECK([for objdir], [lt_cv_objdir], +[rm -f .libs 2>/dev/null +mkdir .libs 2>/dev/null +if test -d .libs; then + lt_cv_objdir=.libs +else + # MS-DOS does not allow filenames that begin with a dot. + lt_cv_objdir=_libs +fi +rmdir .libs 2>/dev/null]) +objdir=$lt_cv_objdir +_LT_DECL([], [objdir], [0], + [The name of the directory that contains temporary libtool files])dnl +m4_pattern_allow([LT_OBJDIR])dnl +AC_DEFINE_UNQUOTED([LT_OBJDIR], "$lt_cv_objdir/", + [Define to the sub-directory where libtool stores uninstalled libraries.]) +])# _LT_CHECK_OBJDIR + + +# _LT_LINKER_HARDCODE_LIBPATH([TAGNAME]) +# -------------------------------------- +# Check hardcoding attributes. +m4_defun([_LT_LINKER_HARDCODE_LIBPATH], +[AC_MSG_CHECKING([how to hardcode library paths into programs]) +_LT_TAGVAR(hardcode_action, $1)= +if test -n "$_LT_TAGVAR(hardcode_libdir_flag_spec, $1)" || + test -n "$_LT_TAGVAR(runpath_var, $1)" || + test yes = "$_LT_TAGVAR(hardcode_automatic, $1)"; then + + # We can hardcode non-existent directories. + if test no != "$_LT_TAGVAR(hardcode_direct, $1)" && + # If the only mechanism to avoid hardcoding is shlibpath_var, we + # have to relink, otherwise we might link with an installed library + # when we should be linking with a yet-to-be-installed one + ## test no != "$_LT_TAGVAR(hardcode_shlibpath_var, $1)" && + test no != "$_LT_TAGVAR(hardcode_minus_L, $1)"; then + # Linking always hardcodes the temporary library directory. + _LT_TAGVAR(hardcode_action, $1)=relink + else + # We can link without hardcoding, and we can hardcode nonexisting dirs. + _LT_TAGVAR(hardcode_action, $1)=immediate + fi +else + # We cannot hardcode anything, or else we can only hardcode existing + # directories. + _LT_TAGVAR(hardcode_action, $1)=unsupported +fi +AC_MSG_RESULT([$_LT_TAGVAR(hardcode_action, $1)]) + +if test relink = "$_LT_TAGVAR(hardcode_action, $1)" || + test yes = "$_LT_TAGVAR(inherit_rpath, $1)"; then + # Fast installation is not supported + enable_fast_install=no +elif test yes = "$shlibpath_overrides_runpath" || + test no = "$enable_shared"; then + # Fast installation is not necessary + enable_fast_install=needless +fi +_LT_TAGDECL([], [hardcode_action], [0], + [How to hardcode a shared library path into an executable]) +])# _LT_LINKER_HARDCODE_LIBPATH + + +# _LT_CMD_STRIPLIB +# ---------------- +m4_defun([_LT_CMD_STRIPLIB], +[m4_require([_LT_DECL_EGREP]) +striplib= +old_striplib= +AC_MSG_CHECKING([whether stripping libraries is possible]) +if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then + test -z "$old_striplib" && old_striplib="$STRIP --strip-debug" + test -z "$striplib" && striplib="$STRIP --strip-unneeded" + AC_MSG_RESULT([yes]) +else +# FIXME - insert some real tests, host_os isn't really good enough + case $host_os in + darwin*) + if test -n "$STRIP"; then + striplib="$STRIP -x" + old_striplib="$STRIP -S" + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + fi + ;; + *) + AC_MSG_RESULT([no]) + ;; + esac +fi +_LT_DECL([], [old_striplib], [1], [Commands to strip libraries]) +_LT_DECL([], [striplib], [1]) +])# _LT_CMD_STRIPLIB + + +# _LT_PREPARE_MUNGE_PATH_LIST +# --------------------------- +# Make sure func_munge_path_list() is defined correctly. +m4_defun([_LT_PREPARE_MUNGE_PATH_LIST], +[[# func_munge_path_list VARIABLE PATH +# ----------------------------------- +# VARIABLE is name of variable containing _space_ separated list of +# directories to be munged by the contents of PATH, which is string +# having a format: +# "DIR[:DIR]:" +# string "DIR[ DIR]" will be prepended to VARIABLE +# ":DIR[:DIR]" +# string "DIR[ DIR]" will be appended to VARIABLE +# "DIRP[:DIRP]::[DIRA:]DIRA" +# string "DIRP[ DIRP]" will be prepended to VARIABLE and string +# "DIRA[ DIRA]" will be appended to VARIABLE +# "DIR[:DIR]" +# VARIABLE will be replaced by "DIR[ DIR]" +func_munge_path_list () +{ + case x@S|@2 in + x) + ;; + *:) + eval @S|@1=\"`$ECHO @S|@2 | $SED 's/:/ /g'` \@S|@@S|@1\" + ;; + x:*) + eval @S|@1=\"\@S|@@S|@1 `$ECHO @S|@2 | $SED 's/:/ /g'`\" + ;; + *::*) + eval @S|@1=\"\@S|@@S|@1\ `$ECHO @S|@2 | $SED -e 's/.*:://' -e 's/:/ /g'`\" + eval @S|@1=\"`$ECHO @S|@2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \@S|@@S|@1\" + ;; + *) + eval @S|@1=\"`$ECHO @S|@2 | $SED 's/:/ /g'`\" + ;; + esac +} +]])# _LT_PREPARE_PATH_LIST + + +# _LT_SYS_DYNAMIC_LINKER([TAG]) +# ----------------------------- +# PORTME Fill in your ld.so characteristics +m4_defun([_LT_SYS_DYNAMIC_LINKER], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +m4_require([_LT_DECL_EGREP])dnl +m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_DECL_OBJDUMP])dnl +m4_require([_LT_DECL_SED])dnl +m4_require([_LT_CHECK_SHELL_FEATURES])dnl +m4_require([_LT_PREPARE_MUNGE_PATH_LIST])dnl +AC_MSG_CHECKING([dynamic linker characteristics]) +m4_if([$1], + [], [ +if test yes = "$GCC"; then + case $host_os in + darwin*) lt_awk_arg='/^libraries:/,/LR/' ;; + *) lt_awk_arg='/^libraries:/' ;; + esac + case $host_os in + mingw* | cegcc*) lt_sed_strip_eq='s|=\([[A-Za-z]]:\)|\1|g' ;; + *) lt_sed_strip_eq='s|=/|/|g' ;; + esac + lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq` + case $lt_search_path_spec in + *\;*) + # if the path contains ";" then we assume it to be the separator + # otherwise default to the standard path separator (i.e. ":") - it is + # assumed that no part of a normal pathname contains ";" but that should + # okay in the real world where ";" in dirpaths is itself problematic. + lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'` + ;; + *) + lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"` + ;; + esac + # Ok, now we have the path, separated by spaces, we can step through it + # and add multilib dir if necessary... + lt_tmp_lt_search_path_spec= + lt_multi_os_dir=/`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null` + # ...but if some path component already ends with the multilib dir we assume + # that all is fine and trust -print-search-dirs as is (GCC 4.2? or newer). + case "$lt_multi_os_dir; $lt_search_path_spec " in + "/; "* | "/.; "* | "/./; "* | *"$lt_multi_os_dir "* | *"$lt_multi_os_dir/ "*) + lt_multi_os_dir= + ;; + esac + for lt_sys_path in $lt_search_path_spec; do + if test -d "$lt_sys_path$lt_multi_os_dir"; then + lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path$lt_multi_os_dir" + elif test -n "$lt_multi_os_dir"; then + test -d "$lt_sys_path" && \ + lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path" + fi + done + lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk ' +BEGIN {RS = " "; FS = "/|\n";} { + lt_foo = ""; + lt_count = 0; + for (lt_i = NF; lt_i > 0; lt_i--) { + if ($lt_i != "" && $lt_i != ".") { + if ($lt_i == "..") { + lt_count++; + } else { + if (lt_count == 0) { + lt_foo = "/" $lt_i lt_foo; + } else { + lt_count--; + } + } + } + } + if (lt_foo != "") { lt_freq[[lt_foo]]++; } + if (lt_freq[[lt_foo]] == 1) { print lt_foo; } +}'` + # AWK program above erroneously prepends '/' to C:/dos/paths + # for these hosts. + case $host_os in + mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\ + $SED 's|/\([[A-Za-z]]:\)|\1|g'` ;; + esac + sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP` +else + sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib" +fi]) +library_names_spec= +libname_spec='lib$name' +soname_spec= +shrext_cmds=.so +postinstall_cmds= +postuninstall_cmds= +finish_cmds= +finish_eval= +shlibpath_var= +shlibpath_overrides_runpath=unknown +version_type=none +dynamic_linker="$host_os ld.so" +sys_lib_dlsearch_path_spec="/lib /usr/lib" +need_lib_prefix=unknown +hardcode_into_libs=no + +# when you set need_version to no, make sure it does not cause -set_version +# flags to be left without arguments +need_version=unknown + +AC_ARG_VAR([LT_SYS_LIBRARY_PATH], +[User-defined run-time library search path.]) + +case $host_os in +aix3*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$release$shared_ext$versuffix $libname.a' + shlibpath_var=LIBPATH + + # AIX 3 has no versioning support, so we append a major version to the name. + soname_spec='$libname$release$shared_ext$major' + ;; + +aix[[4-9]]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + hardcode_into_libs=yes + if test ia64 = "$host_cpu"; then + # AIX 5 supports IA64 + library_names_spec='$libname$release$shared_ext$major $libname$release$shared_ext$versuffix $libname$shared_ext' + shlibpath_var=LD_LIBRARY_PATH + else + # With GCC up to 2.95.x, collect2 would create an import file + # for dependence libraries. The import file would start with + # the line '#! .'. This would cause the generated library to + # depend on '.', always an invalid library. This was fixed in + # development snapshots of GCC prior to 3.0. + case $host_os in + aix4 | aix4.[[01]] | aix4.[[01]].*) + if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)' + echo ' yes ' + echo '#endif'; } | $CC -E - | $GREP yes > /dev/null; then + : + else + can_build_shared=no + fi + ;; + esac + # Using Import Files as archive members, it is possible to support + # filename-based versioning of shared library archives on AIX. While + # this would work for both with and without runtime linking, it will + # prevent static linking of such archives. So we do filename-based + # shared library versioning with .so extension only, which is used + # when both runtime linking and shared linking is enabled. + # Unfortunately, runtime linking may impact performance, so we do + # not want this to be the default eventually. Also, we use the + # versioned .so libs for executables only if there is the -brtl + # linker flag in LDFLAGS as well, or --with-aix-soname=svr4 only. + # To allow for filename-based versioning support, we need to create + # libNAME.so.V as an archive file, containing: + # *) an Import File, referring to the versioned filename of the + # archive as well as the shared archive member, telling the + # bitwidth (32 or 64) of that shared object, and providing the + # list of exported symbols of that shared object, eventually + # decorated with the 'weak' keyword + # *) the shared object with the F_LOADONLY flag set, to really avoid + # it being seen by the linker. + # At run time we better use the real file rather than another symlink, + # but for link time we create the symlink libNAME.so -> libNAME.so.V + + case $with_aix_soname,$aix_use_runtimelinking in + # AIX (on Power*) has no versioning support, so currently we cannot hardcode correct + # soname into executable. Probably we can add versioning support to + # collect2, so additional links can be useful in future. + aix,yes) # traditional libtool + dynamic_linker='AIX unversionable lib.so' + # If using run time linking (on AIX 4.2 or later) use lib.so + # instead of lib.a to let people know that these are not + # typical AIX shared libraries. + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + ;; + aix,no) # traditional AIX only + dynamic_linker='AIX lib.a[(]lib.so.V[)]' + # We preserve .a as extension for shared libraries through AIX4.2 + # and later when we are not doing run time linking. + library_names_spec='$libname$release.a $libname.a' + soname_spec='$libname$release$shared_ext$major' + ;; + svr4,*) # full svr4 only + dynamic_linker="AIX lib.so.V[(]$shared_archive_member_spec.o[)]" + library_names_spec='$libname$release$shared_ext$major $libname$shared_ext' + # We do not specify a path in Import Files, so LIBPATH fires. + shlibpath_overrides_runpath=yes + ;; + *,yes) # both, prefer svr4 + dynamic_linker="AIX lib.so.V[(]$shared_archive_member_spec.o[)], lib.a[(]lib.so.V[)]" + library_names_spec='$libname$release$shared_ext$major $libname$shared_ext' + # unpreferred sharedlib libNAME.a needs extra handling + postinstall_cmds='test -n "$linkname" || linkname="$realname"~func_stripname "" ".so" "$linkname"~$install_shared_prog "$dir/$func_stripname_result.$libext" "$destdir/$func_stripname_result.$libext"~test -z "$tstripme" || test -z "$striplib" || $striplib "$destdir/$func_stripname_result.$libext"' + postuninstall_cmds='for n in $library_names $old_library; do :; done~func_stripname "" ".so" "$n"~test "$func_stripname_result" = "$n" || func_append rmfiles " $odir/$func_stripname_result.$libext"' + # We do not specify a path in Import Files, so LIBPATH fires. + shlibpath_overrides_runpath=yes + ;; + *,no) # both, prefer aix + dynamic_linker="AIX lib.a[(]lib.so.V[)], lib.so.V[(]$shared_archive_member_spec.o[)]" + library_names_spec='$libname$release.a $libname.a' + soname_spec='$libname$release$shared_ext$major' + # unpreferred sharedlib libNAME.so.V and symlink libNAME.so need extra handling + postinstall_cmds='test -z "$dlname" || $install_shared_prog $dir/$dlname $destdir/$dlname~test -z "$tstripme" || test -z "$striplib" || $striplib $destdir/$dlname~test -n "$linkname" || linkname=$realname~func_stripname "" ".a" "$linkname"~(cd "$destdir" && $LN_S -f $dlname $func_stripname_result.so)' + postuninstall_cmds='test -z "$dlname" || func_append rmfiles " $odir/$dlname"~for n in $old_library $library_names; do :; done~func_stripname "" ".a" "$n"~func_append rmfiles " $odir/$func_stripname_result.so"' + ;; + esac + shlibpath_var=LIBPATH + fi + ;; + +amigaos*) + case $host_cpu in + powerpc) + # Since July 2007 AmigaOS4 officially supports .so libraries. + # When compiling the executable, add -use-dynld -Lsobjs: to the compileline. + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + ;; + m68k) + library_names_spec='$libname.ixlibrary $libname.a' + # Create ${libname}_ixlibrary.a entries in /sys/libs. + finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([[^/]]*\)\.ixlibrary$%\1%'\''`; $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done' + ;; + esac + ;; + +beos*) + library_names_spec='$libname$shared_ext' + dynamic_linker="$host_os ld.so" + shlibpath_var=LIBRARY_PATH + ;; + +bsdi[[45]]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir' + shlibpath_var=LD_LIBRARY_PATH + sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib" + sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib" + # the default ld.so.conf also contains /usr/contrib/lib and + # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow + # libtool to hard-code these into programs + ;; + +cygwin* | mingw* | pw32* | cegcc*) + version_type=windows + shrext_cmds=.dll + need_version=no + need_lib_prefix=no + + case $GCC,$cc_basename in + yes,*) + # gcc + library_names_spec='$libname.dll.a' + # DLL is installed to $(libdir)/../bin by postinstall_cmds + postinstall_cmds='base_file=`basename \$file`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname~ + chmod a+x \$dldir/$dlname~ + if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then + eval '\''$striplib \$dldir/$dlname'\'' || exit \$?; + fi' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + shlibpath_overrides_runpath=yes + + case $host_os in + cygwin*) + # Cygwin DLLs use 'cyg' prefix rather than 'lib' + soname_spec='`echo $libname | sed -e 's/^lib/cyg/'``echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext' +m4_if([$1], [],[ + sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"]) + ;; + mingw* | cegcc*) + # MinGW DLLs use traditional 'lib' prefix + soname_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext' + ;; + pw32*) + # pw32 DLLs use 'pw' prefix rather than 'lib' + library_names_spec='`echo $libname | sed -e 's/^lib/pw/'``echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext' + ;; + esac + dynamic_linker='Win32 ld.exe' + ;; + + *,cl*) + # Native MSVC + libname_spec='$name' + soname_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext' + library_names_spec='$libname.dll.lib' + + case $build_os in + mingw*) + sys_lib_search_path_spec= + lt_save_ifs=$IFS + IFS=';' + for lt_path in $LIB + do + IFS=$lt_save_ifs + # Let DOS variable expansion print the short 8.3 style file name. + lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"` + sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path" + done + IFS=$lt_save_ifs + # Convert to MSYS style. + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([[a-zA-Z]]\\):| /\\1|g' -e 's|^ ||'` + ;; + cygwin*) + # Convert to unix form, then to dos form, then back to unix form + # but this time dos style (no spaces!) so that the unix form looks + # like /cygdrive/c/PROGRA~1:/cygdr... + sys_lib_search_path_spec=`cygpath --path --unix "$LIB"` + sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null` + sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"` + ;; + *) + sys_lib_search_path_spec=$LIB + if $ECHO "$sys_lib_search_path_spec" | [$GREP ';[c-zC-Z]:/' >/dev/null]; then + # It is most probably a Windows format PATH. + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'` + else + sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"` + fi + # FIXME: find the short name or the path components, as spaces are + # common. (e.g. "Program Files" -> "PROGRA~1") + ;; + esac + + # DLL is installed to $(libdir)/../bin by postinstall_cmds + postinstall_cmds='base_file=`basename \$file`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + shlibpath_overrides_runpath=yes + dynamic_linker='Win32 link.exe' + ;; + + *) + # Assume MSVC wrapper + library_names_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext $libname.lib' + dynamic_linker='Win32 ld.exe' + ;; + esac + # FIXME: first we should search . and the directory the executable is in + shlibpath_var=PATH + ;; + +darwin* | rhapsody*) + dynamic_linker="$host_os dyld" + version_type=darwin + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$major$shared_ext $libname$shared_ext' + soname_spec='$libname$release$major$shared_ext' + shlibpath_overrides_runpath=yes + shlibpath_var=DYLD_LIBRARY_PATH + shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`' +m4_if([$1], [],[ + sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib"]) + sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib' + ;; + +dgux*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + ;; + +freebsd* | dragonfly*) + # DragonFly does not have aout. When/if they implement a new + # versioning mechanism, adjust this. + if test -x /usr/bin/objformat; then + objformat=`/usr/bin/objformat` + else + case $host_os in + freebsd[[23]].*) objformat=aout ;; + *) objformat=elf ;; + esac + fi + version_type=freebsd-$objformat + case $version_type in + freebsd-elf*) + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + need_version=no + need_lib_prefix=no + ;; + freebsd-*) + library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' + need_version=yes + ;; + esac + shlibpath_var=LD_LIBRARY_PATH + case $host_os in + freebsd2.*) + shlibpath_overrides_runpath=yes + ;; + freebsd3.[[01]]* | freebsdelf3.[[01]]*) + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + freebsd3.[[2-9]]* | freebsdelf3.[[2-9]]* | \ + freebsd4.[[0-5]] | freebsdelf4.[[0-5]] | freebsd4.1.1 | freebsdelf4.1.1) + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + *) # from 4.6 on, and DragonFly + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + esac + ;; + +haiku*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + dynamic_linker="$host_os runtime_loader" + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LIBRARY_PATH + shlibpath_overrides_runpath=no + sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib' + hardcode_into_libs=yes + ;; + +hpux9* | hpux10* | hpux11*) + # Give a soname corresponding to the major version so that dld.sl refuses to + # link against other versions. + version_type=sunos + need_lib_prefix=no + need_version=no + case $host_cpu in + ia64*) + shrext_cmds='.so' + hardcode_into_libs=yes + dynamic_linker="$host_os dld.so" + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + if test 32 = "$HPUX_IA64_MODE"; then + sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib" + sys_lib_dlsearch_path_spec=/usr/lib/hpux32 + else + sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64" + sys_lib_dlsearch_path_spec=/usr/lib/hpux64 + fi + ;; + hppa*64*) + shrext_cmds='.sl' + hardcode_into_libs=yes + dynamic_linker="$host_os dld.sl" + shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH + shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64" + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + ;; + *) + shrext_cmds='.sl' + dynamic_linker="$host_os dld.sl" + shlibpath_var=SHLIB_PATH + shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + ;; + esac + # HP-UX runs *really* slowly unless shared libraries are mode 555, ... + postinstall_cmds='chmod 555 $lib' + # or fails outright, so override atomically: + install_override_mode=555 + ;; + +interix[[3-9]]*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + +irix5* | irix6* | nonstopux*) + case $host_os in + nonstopux*) version_type=nonstopux ;; + *) + if test yes = "$lt_cv_prog_gnu_ld"; then + version_type=linux # correct to gnu/linux during the next big refactor + else + version_type=irix + fi ;; + esac + need_lib_prefix=no + need_version=no + soname_spec='$libname$release$shared_ext$major' + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext' + case $host_os in + irix5* | nonstopux*) + libsuff= shlibsuff= + ;; + *) + case $LD in # libtool.m4 will add one of these switches to LD + *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ") + libsuff= shlibsuff= libmagic=32-bit;; + *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ") + libsuff=32 shlibsuff=N32 libmagic=N32;; + *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ") + libsuff=64 shlibsuff=64 libmagic=64-bit;; + *) libsuff= shlibsuff= libmagic=never-match;; + esac + ;; + esac + shlibpath_var=LD_LIBRARY${shlibsuff}_PATH + shlibpath_overrides_runpath=no + sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff" + sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff" + hardcode_into_libs=yes + ;; + +# No shared lib support for Linux oldld, aout, or coff. +linux*oldld* | linux*aout* | linux*coff*) + dynamic_linker=no + ;; + +linux*android*) + version_type=none # Android doesn't support versioned libraries. + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext' + soname_spec='$libname$release$shared_ext' + finish_cmds= + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + + # This implies no fast_install, which is unacceptable. + # Some rework will be needed to allow for fast_install + # before this can be enabled. + hardcode_into_libs=yes + + dynamic_linker='Android linker' + # Don't embed -rpath directories since the linker doesn't support them. + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + ;; + +# This must be glibc/ELF. +linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + + # Some binutils ld are patched to set DT_RUNPATH + AC_CACHE_VAL([lt_cv_shlibpath_overrides_runpath], + [lt_cv_shlibpath_overrides_runpath=no + save_LDFLAGS=$LDFLAGS + save_libdir=$libdir + eval "libdir=/foo; wl=\"$_LT_TAGVAR(lt_prog_compiler_wl, $1)\"; \ + LDFLAGS=\"\$LDFLAGS $_LT_TAGVAR(hardcode_libdir_flag_spec, $1)\"" + AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])], + [AS_IF([ ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null], + [lt_cv_shlibpath_overrides_runpath=yes])]) + LDFLAGS=$save_LDFLAGS + libdir=$save_libdir + ]) + shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath + + # This implies no fast_install, which is unacceptable. + # Some rework will be needed to allow for fast_install + # before this can be enabled. + hardcode_into_libs=yes + + # Add ABI-specific directories to the system library path. + sys_lib_dlsearch_path_spec="/lib64 /usr/lib64 /lib /usr/lib" + + # Ideally, we could use ldconfig to report *all* directores which are + # searched for libraries, however this is still not possible. Aside from not + # being certain /sbin/ldconfig is available, command + # 'ldconfig -N -X -v | grep ^/' on 64bit Fedora does not report /usr/lib64, + # even though it is searched at run-time. Try to do the best guess by + # appending ld.so.conf contents (and includes) to the search path. + if test -f /etc/ld.so.conf; then + lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \[$]2)); skip = 1; } { if (!skip) print \[$]0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[ ]*hwcap[ ]/d;s/[:, ]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '` + sys_lib_dlsearch_path_spec="$sys_lib_dlsearch_path_spec $lt_ld_extra" + fi + + # We used to test for /lib/ld.so.1 and disable shared libraries on + # powerpc, because MkLinux only supported shared libraries with the + # GNU dynamic linker. Since this was broken with cross compilers, + # most powerpc-linux boxes support dynamic linking these days and + # people can always --disable-shared, the test was removed, and we + # assume the GNU/Linux dynamic linker is in use. + dynamic_linker='GNU/Linux ld.so' + ;; + +netbsd*) + version_type=sunos + need_lib_prefix=no + need_version=no + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' + dynamic_linker='NetBSD (a.out) ld.so' + else + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + dynamic_linker='NetBSD ld.elf_so' + fi + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + ;; + +newsos6) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + ;; + +*nto* | *qnx*) + version_type=qnx + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + dynamic_linker='ldqnx.so' + ;; + +openbsd* | bitrig*) + version_type=sunos + sys_lib_dlsearch_path_spec=/usr/lib + need_lib_prefix=no + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then + need_version=no + else + need_version=yes + fi + library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' + finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + ;; + +os2*) + libname_spec='$name' + version_type=windows + shrext_cmds=.dll + need_version=no + need_lib_prefix=no + # OS/2 can only load a DLL with a base name of 8 characters or less. + soname_spec='`test -n "$os2dllname" && libname="$os2dllname"; + v=$($ECHO $release$versuffix | tr -d .-); + n=$($ECHO $libname | cut -b -$((8 - ${#v})) | tr . _); + $ECHO $n$v`$shared_ext' + library_names_spec='${libname}_dll.$libext' + dynamic_linker='OS/2 ld.exe' + shlibpath_var=BEGINLIBPATH + sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib" + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + postinstall_cmds='base_file=`basename \$file`~ + dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; $ECHO \$dlname'\''`~ + dldir=$destdir/`dirname \$dlpath`~ + test -d \$dldir || mkdir -p \$dldir~ + $install_prog $dir/$dlname \$dldir/$dlname~ + chmod a+x \$dldir/$dlname~ + if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then + eval '\''$striplib \$dldir/$dlname'\'' || exit \$?; + fi' + postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; $ECHO \$dlname'\''`~ + dlpath=$dir/\$dldll~ + $RM \$dlpath' + ;; + +osf3* | osf4* | osf5*) + version_type=osf + need_lib_prefix=no + need_version=no + soname_spec='$libname$release$shared_ext$major' + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + shlibpath_var=LD_LIBRARY_PATH + sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib" + sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec + ;; + +rdos*) + dynamic_linker=no + ;; + +solaris*) + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + # ldd complains unless libraries are executable + postinstall_cmds='chmod +x $lib' + ;; + +sunos4*) + version_type=sunos + library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' + finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + if test yes = "$with_gnu_ld"; then + need_lib_prefix=no + fi + need_version=yes + ;; + +sysv4 | sysv4.3*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + case $host_vendor in + sni) + shlibpath_overrides_runpath=no + need_lib_prefix=no + runpath_var=LD_RUN_PATH + ;; + siemens) + need_lib_prefix=no + ;; + motorola) + need_lib_prefix=no + need_version=no + shlibpath_overrides_runpath=no + sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib' + ;; + esac + ;; + +sysv4*MP*) + if test -d /usr/nec; then + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$shared_ext.$versuffix $libname$shared_ext.$major $libname$shared_ext' + soname_spec='$libname$shared_ext.$major' + shlibpath_var=LD_LIBRARY_PATH + fi + ;; + +sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) + version_type=sco + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=yes + hardcode_into_libs=yes + if test yes = "$with_gnu_ld"; then + sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib' + else + sys_lib_search_path_spec='/usr/ccs/lib /usr/lib' + case $host_os in + sco3.2v5*) + sys_lib_search_path_spec="$sys_lib_search_path_spec /lib" + ;; + esac + fi + sys_lib_dlsearch_path_spec='/usr/lib' + ;; + +tpf*) + # TPF is a cross-target only. Preferred cross-host = GNU/Linux. + version_type=linux # correct to gnu/linux during the next big refactor + need_lib_prefix=no + need_version=no + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + shlibpath_var=LD_LIBRARY_PATH + shlibpath_overrides_runpath=no + hardcode_into_libs=yes + ;; + +uts4*) + version_type=linux # correct to gnu/linux during the next big refactor + library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' + soname_spec='$libname$release$shared_ext$major' + shlibpath_var=LD_LIBRARY_PATH + ;; + +*) + dynamic_linker=no + ;; +esac +AC_MSG_RESULT([$dynamic_linker]) +test no = "$dynamic_linker" && can_build_shared=no + +variables_saved_for_relink="PATH $shlibpath_var $runpath_var" +if test yes = "$GCC"; then + variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH" +fi + +if test set = "${lt_cv_sys_lib_search_path_spec+set}"; then + sys_lib_search_path_spec=$lt_cv_sys_lib_search_path_spec +fi + +if test set = "${lt_cv_sys_lib_dlsearch_path_spec+set}"; then + sys_lib_dlsearch_path_spec=$lt_cv_sys_lib_dlsearch_path_spec +fi + +# remember unaugmented sys_lib_dlsearch_path content for libtool script decls... +configure_time_dlsearch_path=$sys_lib_dlsearch_path_spec + +# ... but it needs LT_SYS_LIBRARY_PATH munging for other configure-time code +func_munge_path_list sys_lib_dlsearch_path_spec "$LT_SYS_LIBRARY_PATH" + +# to be used as default LT_SYS_LIBRARY_PATH value in generated libtool +configure_time_lt_sys_library_path=$LT_SYS_LIBRARY_PATH + +_LT_DECL([], [variables_saved_for_relink], [1], + [Variables whose values should be saved in libtool wrapper scripts and + restored at link time]) +_LT_DECL([], [need_lib_prefix], [0], + [Do we need the "lib" prefix for modules?]) +_LT_DECL([], [need_version], [0], [Do we need a version for libraries?]) +_LT_DECL([], [version_type], [0], [Library versioning type]) +_LT_DECL([], [runpath_var], [0], [Shared library runtime path variable]) +_LT_DECL([], [shlibpath_var], [0],[Shared library path variable]) +_LT_DECL([], [shlibpath_overrides_runpath], [0], + [Is shlibpath searched before the hard-coded library search path?]) +_LT_DECL([], [libname_spec], [1], [Format of library name prefix]) +_LT_DECL([], [library_names_spec], [1], + [[List of archive names. First name is the real one, the rest are links. + The last name is the one that the linker finds with -lNAME]]) +_LT_DECL([], [soname_spec], [1], + [[The coded name of the library, if different from the real name]]) +_LT_DECL([], [install_override_mode], [1], + [Permission mode override for installation of shared libraries]) +_LT_DECL([], [postinstall_cmds], [2], + [Command to use after installation of a shared archive]) +_LT_DECL([], [postuninstall_cmds], [2], + [Command to use after uninstallation of a shared archive]) +_LT_DECL([], [finish_cmds], [2], + [Commands used to finish a libtool library installation in a directory]) +_LT_DECL([], [finish_eval], [1], + [[As "finish_cmds", except a single script fragment to be evaled but + not shown]]) +_LT_DECL([], [hardcode_into_libs], [0], + [Whether we should hardcode library paths into libraries]) +_LT_DECL([], [sys_lib_search_path_spec], [2], + [Compile-time system search path for libraries]) +_LT_DECL([sys_lib_dlsearch_path_spec], [configure_time_dlsearch_path], [2], + [Detected run-time system search path for libraries]) +_LT_DECL([], [configure_time_lt_sys_library_path], [2], + [Explicit LT_SYS_LIBRARY_PATH set during ./configure time]) +])# _LT_SYS_DYNAMIC_LINKER + + +# _LT_PATH_TOOL_PREFIX(TOOL) +# -------------------------- +# find a file program that can recognize shared library +AC_DEFUN([_LT_PATH_TOOL_PREFIX], +[m4_require([_LT_DECL_EGREP])dnl +AC_MSG_CHECKING([for $1]) +AC_CACHE_VAL(lt_cv_path_MAGIC_CMD, +[case $MAGIC_CMD in +[[\\/*] | ?:[\\/]*]) + lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path. + ;; +*) + lt_save_MAGIC_CMD=$MAGIC_CMD + lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR +dnl $ac_dummy forces splitting on constant user-supplied paths. +dnl POSIX.2 word splitting is done only on the output of word expansions, +dnl not every word. This closes a longstanding sh security hole. + ac_dummy="m4_if([$2], , $PATH, [$2])" + for ac_dir in $ac_dummy; do + IFS=$lt_save_ifs + test -z "$ac_dir" && ac_dir=. + if test -f "$ac_dir/$1"; then + lt_cv_path_MAGIC_CMD=$ac_dir/"$1" + if test -n "$file_magic_test_file"; then + case $deplibs_check_method in + "file_magic "*) + file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"` + MAGIC_CMD=$lt_cv_path_MAGIC_CMD + if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null | + $EGREP "$file_magic_regex" > /dev/null; then + : + else + cat <<_LT_EOF 1>&2 + +*** Warning: the command libtool uses to detect shared libraries, +*** $file_magic_cmd, produces output that libtool cannot recognize. +*** The result is that libtool may fail to recognize shared libraries +*** as such. This will affect the creation of libtool libraries that +*** depend on shared libraries, but programs linked with such libtool +*** libraries will work regardless of this problem. Nevertheless, you +*** may want to report the problem to your system manager and/or to +*** bug-libtool@gnu.org + +_LT_EOF + fi ;; + esac + fi + break + fi + done + IFS=$lt_save_ifs + MAGIC_CMD=$lt_save_MAGIC_CMD + ;; +esac]) +MAGIC_CMD=$lt_cv_path_MAGIC_CMD +if test -n "$MAGIC_CMD"; then + AC_MSG_RESULT($MAGIC_CMD) +else + AC_MSG_RESULT(no) +fi +_LT_DECL([], [MAGIC_CMD], [0], + [Used to examine libraries when file_magic_cmd begins with "file"])dnl +])# _LT_PATH_TOOL_PREFIX + +# Old name: +AU_ALIAS([AC_PATH_TOOL_PREFIX], [_LT_PATH_TOOL_PREFIX]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_PATH_TOOL_PREFIX], []) + + +# _LT_PATH_MAGIC +# -------------- +# find a file program that can recognize a shared library +m4_defun([_LT_PATH_MAGIC], +[_LT_PATH_TOOL_PREFIX(${ac_tool_prefix}file, /usr/bin$PATH_SEPARATOR$PATH) +if test -z "$lt_cv_path_MAGIC_CMD"; then + if test -n "$ac_tool_prefix"; then + _LT_PATH_TOOL_PREFIX(file, /usr/bin$PATH_SEPARATOR$PATH) + else + MAGIC_CMD=: + fi +fi +])# _LT_PATH_MAGIC + + +# LT_PATH_LD +# ---------- +# find the pathname to the GNU or non-GNU linker +AC_DEFUN([LT_PATH_LD], +[AC_REQUIRE([AC_PROG_CC])dnl +AC_REQUIRE([AC_CANONICAL_HOST])dnl +AC_REQUIRE([AC_CANONICAL_BUILD])dnl +m4_require([_LT_DECL_SED])dnl +m4_require([_LT_DECL_EGREP])dnl +m4_require([_LT_PROG_ECHO_BACKSLASH])dnl + +AC_ARG_WITH([gnu-ld], + [AS_HELP_STRING([--with-gnu-ld], + [assume the C compiler uses GNU ld @<:@default=no@:>@])], + [test no = "$withval" || with_gnu_ld=yes], + [with_gnu_ld=no])dnl + +ac_prog=ld +if test yes = "$GCC"; then + # Check if gcc -print-prog-name=ld gives a path. + AC_MSG_CHECKING([for ld used by $CC]) + case $host in + *-*-mingw*) + # gcc leaves a trailing carriage return, which upsets mingw + ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;; + *) + ac_prog=`($CC -print-prog-name=ld) 2>&5` ;; + esac + case $ac_prog in + # Accept absolute paths. + [[\\/]]* | ?:[[\\/]]*) + re_direlt='/[[^/]][[^/]]*/\.\./' + # Canonicalize the pathname of ld + ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'` + while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do + ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"` + done + test -z "$LD" && LD=$ac_prog + ;; + "") + # If it fails, then pretend we aren't using GCC. + ac_prog=ld + ;; + *) + # If it is relative, then search for the first ld in PATH. + with_gnu_ld=unknown + ;; + esac +elif test yes = "$with_gnu_ld"; then + AC_MSG_CHECKING([for GNU ld]) +else + AC_MSG_CHECKING([for non-GNU ld]) +fi +AC_CACHE_VAL(lt_cv_path_LD, +[if test -z "$LD"; then + lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR + for ac_dir in $PATH; do + IFS=$lt_save_ifs + test -z "$ac_dir" && ac_dir=. + if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then + lt_cv_path_LD=$ac_dir/$ac_prog + # Check to see if the program is GNU ld. I'd rather use --version, + # but apparently some variants of GNU ld only accept -v. + # Break only if it was the GNU/non-GNU ld that we prefer. + case `"$lt_cv_path_LD" -v 2>&1 &1 conftest.i +cat conftest.i conftest.i >conftest2.i +: ${lt_DD:=$DD} +AC_PATH_PROGS_FEATURE_CHECK([lt_DD], [dd], +[if "$ac_path_lt_DD" bs=32 count=1 conftest.out 2>/dev/null; then + cmp -s conftest.i conftest.out \ + && ac_cv_path_lt_DD="$ac_path_lt_DD" ac_path_lt_DD_found=: +fi]) +rm -f conftest.i conftest2.i conftest.out]) +])# _LT_PATH_DD + + +# _LT_CMD_TRUNCATE +# ---------------- +# find command to truncate a binary pipe +m4_defun([_LT_CMD_TRUNCATE], +[m4_require([_LT_PATH_DD]) +AC_CACHE_CHECK([how to truncate binary pipes], [lt_cv_truncate_bin], +[printf 0123456789abcdef0123456789abcdef >conftest.i +cat conftest.i conftest.i >conftest2.i +lt_cv_truncate_bin= +if "$ac_cv_path_lt_DD" bs=32 count=1 conftest.out 2>/dev/null; then + cmp -s conftest.i conftest.out \ + && lt_cv_truncate_bin="$ac_cv_path_lt_DD bs=4096 count=1" +fi +rm -f conftest.i conftest2.i conftest.out +test -z "$lt_cv_truncate_bin" && lt_cv_truncate_bin="$SED -e 4q"]) +_LT_DECL([lt_truncate_bin], [lt_cv_truncate_bin], [1], + [Command to truncate a binary pipe]) +])# _LT_CMD_TRUNCATE + + +# _LT_CHECK_MAGIC_METHOD +# ---------------------- +# how to check for library dependencies +# -- PORTME fill in with the dynamic library characteristics +m4_defun([_LT_CHECK_MAGIC_METHOD], +[m4_require([_LT_DECL_EGREP]) +m4_require([_LT_DECL_OBJDUMP]) +AC_CACHE_CHECK([how to recognize dependent libraries], +lt_cv_deplibs_check_method, +[lt_cv_file_magic_cmd='$MAGIC_CMD' +lt_cv_file_magic_test_file= +lt_cv_deplibs_check_method='unknown' +# Need to set the preceding variable on all platforms that support +# interlibrary dependencies. +# 'none' -- dependencies not supported. +# 'unknown' -- same as none, but documents that we really don't know. +# 'pass_all' -- all dependencies passed with no checks. +# 'test_compile' -- check by making test program. +# 'file_magic [[regex]]' -- check by looking for files in library path +# that responds to the $file_magic_cmd with a given extended regex. +# If you have 'file' or equivalent on your system and you're not sure +# whether 'pass_all' will *always* work, you probably want this one. + +case $host_os in +aix[[4-9]]*) + lt_cv_deplibs_check_method=pass_all + ;; + +beos*) + lt_cv_deplibs_check_method=pass_all + ;; + +bsdi[[45]]*) + lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib)' + lt_cv_file_magic_cmd='/usr/bin/file -L' + lt_cv_file_magic_test_file=/shlib/libc.so + ;; + +cygwin*) + # func_win32_libid is a shell function defined in ltmain.sh + lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL' + lt_cv_file_magic_cmd='func_win32_libid' + ;; + +mingw* | pw32*) + # Base MSYS/MinGW do not provide the 'file' command needed by + # func_win32_libid shell function, so use a weaker test based on 'objdump', + # unless we find 'file', for example because we are cross-compiling. + if ( file / ) >/dev/null 2>&1; then + lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL' + lt_cv_file_magic_cmd='func_win32_libid' + else + # Keep this pattern in sync with the one in func_win32_libid. + lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' + lt_cv_file_magic_cmd='$OBJDUMP -f' + fi + ;; + +cegcc*) + # use the weaker test based on 'objdump'. See mingw*. + lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?' + lt_cv_file_magic_cmd='$OBJDUMP -f' + ;; + +darwin* | rhapsody*) + lt_cv_deplibs_check_method=pass_all + ;; + +freebsd* | dragonfly*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then + case $host_cpu in + i*86 ) + # Not sure whether the presence of OpenBSD here was a mistake. + # Let's accept both of them until this is cleared up. + lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[[3-9]]86 (compact )?demand paged shared library' + lt_cv_file_magic_cmd=/usr/bin/file + lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*` + ;; + esac + else + lt_cv_deplibs_check_method=pass_all + fi + ;; + +haiku*) + lt_cv_deplibs_check_method=pass_all + ;; + +hpux10.20* | hpux11*) + lt_cv_file_magic_cmd=/usr/bin/file + case $host_cpu in + ia64*) + lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|ELF-[[0-9]][[0-9]]) shared object file - IA64' + lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so + ;; + hppa*64*) + [lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]'] + lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl + ;; + *) + lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|PA-RISC[[0-9]]\.[[0-9]]) shared library' + lt_cv_file_magic_test_file=/usr/lib/libc.sl + ;; + esac + ;; + +interix[[3-9]]*) + # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here + lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|\.a)$' + ;; + +irix5* | irix6* | nonstopux*) + case $LD in + *-32|*"-32 ") libmagic=32-bit;; + *-n32|*"-n32 ") libmagic=N32;; + *-64|*"-64 ") libmagic=64-bit;; + *) libmagic=never-match;; + esac + lt_cv_deplibs_check_method=pass_all + ;; + +# This must be glibc/ELF. +linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + lt_cv_deplibs_check_method=pass_all + ;; + +netbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then + lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$' + else + lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|_pic\.a)$' + fi + ;; + +newos6*) + lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (executable|dynamic lib)' + lt_cv_file_magic_cmd=/usr/bin/file + lt_cv_file_magic_test_file=/usr/lib/libnls.so + ;; + +*nto* | *qnx*) + lt_cv_deplibs_check_method=pass_all + ;; + +openbsd* | bitrig*) + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then + lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|\.so|_pic\.a)$' + else + lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$' + fi + ;; + +osf3* | osf4* | osf5*) + lt_cv_deplibs_check_method=pass_all + ;; + +rdos*) + lt_cv_deplibs_check_method=pass_all + ;; + +solaris*) + lt_cv_deplibs_check_method=pass_all + ;; + +sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) + lt_cv_deplibs_check_method=pass_all + ;; + +sysv4 | sysv4.3*) + case $host_vendor in + motorola) + lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib) M[[0-9]][[0-9]]* Version [[0-9]]' + lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*` + ;; + ncr) + lt_cv_deplibs_check_method=pass_all + ;; + sequent) + lt_cv_file_magic_cmd='/bin/file' + lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB (shared object|dynamic lib )' + ;; + sni) + lt_cv_file_magic_cmd='/bin/file' + lt_cv_deplibs_check_method="file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB dynamic lib" + lt_cv_file_magic_test_file=/lib/libc.so + ;; + siemens) + lt_cv_deplibs_check_method=pass_all + ;; + pc) + lt_cv_deplibs_check_method=pass_all + ;; + esac + ;; + +tpf*) + lt_cv_deplibs_check_method=pass_all + ;; +os2*) + lt_cv_deplibs_check_method=pass_all + ;; +esac +]) + +file_magic_glob= +want_nocaseglob=no +if test "$build" = "$host"; then + case $host_os in + mingw* | pw32*) + if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then + want_nocaseglob=yes + else + file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[[\1]]\/[[\1]]\/g;/g"` + fi + ;; + esac +fi + +file_magic_cmd=$lt_cv_file_magic_cmd +deplibs_check_method=$lt_cv_deplibs_check_method +test -z "$deplibs_check_method" && deplibs_check_method=unknown + +_LT_DECL([], [deplibs_check_method], [1], + [Method to check whether dependent libraries are shared objects]) +_LT_DECL([], [file_magic_cmd], [1], + [Command to use when deplibs_check_method = "file_magic"]) +_LT_DECL([], [file_magic_glob], [1], + [How to find potential files when deplibs_check_method = "file_magic"]) +_LT_DECL([], [want_nocaseglob], [1], + [Find potential files using nocaseglob when deplibs_check_method = "file_magic"]) +])# _LT_CHECK_MAGIC_METHOD + + +# LT_PATH_NM +# ---------- +# find the pathname to a BSD- or MS-compatible name lister +AC_DEFUN([LT_PATH_NM], +[AC_REQUIRE([AC_PROG_CC])dnl +AC_CACHE_CHECK([for BSD- or MS-compatible name lister (nm)], lt_cv_path_NM, +[if test -n "$NM"; then + # Let the user override the test. + lt_cv_path_NM=$NM +else + lt_nm_to_check=${ac_tool_prefix}nm + if test -n "$ac_tool_prefix" && test "$build" = "$host"; then + lt_nm_to_check="$lt_nm_to_check nm" + fi + for lt_tmp_nm in $lt_nm_to_check; do + lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR + for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do + IFS=$lt_save_ifs + test -z "$ac_dir" && ac_dir=. + tmp_nm=$ac_dir/$lt_tmp_nm + if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext"; then + # Check to see if the nm accepts a BSD-compat flag. + # Adding the 'sed 1q' prevents false positives on HP-UX, which says: + # nm: unknown option "B" ignored + # Tru64's nm complains that /dev/null is an invalid object file + # MSYS converts /dev/null to NUL, MinGW nm treats NUL as empty + case $build_os in + mingw*) lt_bad_file=conftest.nm/nofile ;; + *) lt_bad_file=/dev/null ;; + esac + case `"$tmp_nm" -B $lt_bad_file 2>&1 | sed '1q'` in + *$lt_bad_file* | *'Invalid file or object type'*) + lt_cv_path_NM="$tmp_nm -B" + break 2 + ;; + *) + case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in + */dev/null*) + lt_cv_path_NM="$tmp_nm -p" + break 2 + ;; + *) + lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but + continue # so that we can try to find one that supports BSD flags + ;; + esac + ;; + esac + fi + done + IFS=$lt_save_ifs + done + : ${lt_cv_path_NM=no} +fi]) +if test no != "$lt_cv_path_NM"; then + NM=$lt_cv_path_NM +else + # Didn't find any BSD compatible name lister, look for dumpbin. + if test -n "$DUMPBIN"; then : + # Let the user override the test. + else + AC_CHECK_TOOLS(DUMPBIN, [dumpbin "link -dump"], :) + case `$DUMPBIN -symbols -headers /dev/null 2>&1 | sed '1q'` in + *COFF*) + DUMPBIN="$DUMPBIN -symbols -headers" + ;; + *) + DUMPBIN=: + ;; + esac + fi + AC_SUBST([DUMPBIN]) + if test : != "$DUMPBIN"; then + NM=$DUMPBIN + fi +fi +test -z "$NM" && NM=nm +AC_SUBST([NM]) +_LT_DECL([], [NM], [1], [A BSD- or MS-compatible name lister])dnl + +AC_CACHE_CHECK([the name lister ($NM) interface], [lt_cv_nm_interface], + [lt_cv_nm_interface="BSD nm" + echo "int some_variable = 0;" > conftest.$ac_ext + (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&AS_MESSAGE_LOG_FD) + (eval "$ac_compile" 2>conftest.err) + cat conftest.err >&AS_MESSAGE_LOG_FD + (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&AS_MESSAGE_LOG_FD) + (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out) + cat conftest.err >&AS_MESSAGE_LOG_FD + (eval echo "\"\$as_me:$LINENO: output\"" >&AS_MESSAGE_LOG_FD) + cat conftest.out >&AS_MESSAGE_LOG_FD + if $GREP 'External.*some_variable' conftest.out > /dev/null; then + lt_cv_nm_interface="MS dumpbin" + fi + rm -f conftest*]) +])# LT_PATH_NM + +# Old names: +AU_ALIAS([AM_PROG_NM], [LT_PATH_NM]) +AU_ALIAS([AC_PROG_NM], [LT_PATH_NM]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AM_PROG_NM], []) +dnl AC_DEFUN([AC_PROG_NM], []) + +# _LT_CHECK_SHAREDLIB_FROM_LINKLIB +# -------------------------------- +# how to determine the name of the shared library +# associated with a specific link library. +# -- PORTME fill in with the dynamic library characteristics +m4_defun([_LT_CHECK_SHAREDLIB_FROM_LINKLIB], +[m4_require([_LT_DECL_EGREP]) +m4_require([_LT_DECL_OBJDUMP]) +m4_require([_LT_DECL_DLLTOOL]) +AC_CACHE_CHECK([how to associate runtime and link libraries], +lt_cv_sharedlib_from_linklib_cmd, +[lt_cv_sharedlib_from_linklib_cmd='unknown' + +case $host_os in +cygwin* | mingw* | pw32* | cegcc*) + # two different shell functions defined in ltmain.sh; + # decide which one to use based on capabilities of $DLLTOOL + case `$DLLTOOL --help 2>&1` in + *--identify-strict*) + lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib + ;; + *) + lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback + ;; + esac + ;; +*) + # fallback: assume linklib IS sharedlib + lt_cv_sharedlib_from_linklib_cmd=$ECHO + ;; +esac +]) +sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd +test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO + +_LT_DECL([], [sharedlib_from_linklib_cmd], [1], + [Command to associate shared and link libraries]) +])# _LT_CHECK_SHAREDLIB_FROM_LINKLIB + + +# _LT_PATH_MANIFEST_TOOL +# ---------------------- +# locate the manifest tool +m4_defun([_LT_PATH_MANIFEST_TOOL], +[AC_CHECK_TOOL(MANIFEST_TOOL, mt, :) +test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt +AC_CACHE_CHECK([if $MANIFEST_TOOL is a manifest tool], [lt_cv_path_mainfest_tool], + [lt_cv_path_mainfest_tool=no + echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&AS_MESSAGE_LOG_FD + $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out + cat conftest.err >&AS_MESSAGE_LOG_FD + if $GREP 'Manifest Tool' conftest.out > /dev/null; then + lt_cv_path_mainfest_tool=yes + fi + rm -f conftest*]) +if test yes != "$lt_cv_path_mainfest_tool"; then + MANIFEST_TOOL=: +fi +_LT_DECL([], [MANIFEST_TOOL], [1], [Manifest tool])dnl +])# _LT_PATH_MANIFEST_TOOL + + +# _LT_DLL_DEF_P([FILE]) +# --------------------- +# True iff FILE is a Windows DLL '.def' file. +# Keep in sync with func_dll_def_p in the libtool script +AC_DEFUN([_LT_DLL_DEF_P], +[dnl + test DEF = "`$SED -n dnl + -e '\''s/^[[ ]]*//'\'' dnl Strip leading whitespace + -e '\''/^\(;.*\)*$/d'\'' dnl Delete empty lines and comments + -e '\''s/^\(EXPORTS\|LIBRARY\)\([[ ]].*\)*$/DEF/p'\'' dnl + -e q dnl Only consider the first "real" line + $1`" dnl +])# _LT_DLL_DEF_P + + +# LT_LIB_M +# -------- +# check for math library +AC_DEFUN([LT_LIB_M], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +LIBM= +case $host in +*-*-beos* | *-*-cegcc* | *-*-cygwin* | *-*-haiku* | *-*-pw32* | *-*-darwin*) + # These system don't have libm, or don't need it + ;; +*-ncr-sysv4.3*) + AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM=-lmw) + AC_CHECK_LIB(m, cos, LIBM="$LIBM -lm") + ;; +*) + AC_CHECK_LIB(m, cos, LIBM=-lm) + ;; +esac +AC_SUBST([LIBM]) +])# LT_LIB_M + +# Old name: +AU_ALIAS([AC_CHECK_LIBM], [LT_LIB_M]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_CHECK_LIBM], []) + + +# _LT_COMPILER_NO_RTTI([TAGNAME]) +# ------------------------------- +m4_defun([_LT_COMPILER_NO_RTTI], +[m4_require([_LT_TAG_COMPILER])dnl + +_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)= + +if test yes = "$GCC"; then + case $cc_basename in + nvcc*) + _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -Xcompiler -fno-builtin' ;; + *) + _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin' ;; + esac + + _LT_COMPILER_OPTION([if $compiler supports -fno-rtti -fno-exceptions], + lt_cv_prog_compiler_rtti_exceptions, + [-fno-rtti -fno-exceptions], [], + [_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)="$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1) -fno-rtti -fno-exceptions"]) +fi +_LT_TAGDECL([no_builtin_flag], [lt_prog_compiler_no_builtin_flag], [1], + [Compiler flag to turn off builtin functions]) +])# _LT_COMPILER_NO_RTTI + + +# _LT_CMD_GLOBAL_SYMBOLS +# ---------------------- +m4_defun([_LT_CMD_GLOBAL_SYMBOLS], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +AC_REQUIRE([AC_PROG_CC])dnl +AC_REQUIRE([AC_PROG_AWK])dnl +AC_REQUIRE([LT_PATH_NM])dnl +AC_REQUIRE([LT_PATH_LD])dnl +m4_require([_LT_DECL_SED])dnl +m4_require([_LT_DECL_EGREP])dnl +m4_require([_LT_TAG_COMPILER])dnl + +# Check for command to grab the raw symbol name followed by C symbol from nm. +AC_MSG_CHECKING([command to parse $NM output from $compiler object]) +AC_CACHE_VAL([lt_cv_sys_global_symbol_pipe], +[ +# These are sane defaults that work on at least a few old systems. +# [They come from Ultrix. What could be older than Ultrix?!! ;)] + +# Character class describing NM global symbol codes. +symcode='[[BCDEGRST]]' + +# Regexp to match symbols that can be accessed directly from C. +sympat='\([[_A-Za-z]][[_A-Za-z0-9]]*\)' + +# Define system-specific variables. +case $host_os in +aix*) + symcode='[[BCDT]]' + ;; +cygwin* | mingw* | pw32* | cegcc*) + symcode='[[ABCDGISTW]]' + ;; +hpux*) + if test ia64 = "$host_cpu"; then + symcode='[[ABCDEGRST]]' + fi + ;; +irix* | nonstopux*) + symcode='[[BCDEGRST]]' + ;; +osf*) + symcode='[[BCDEGQRST]]' + ;; +solaris*) + symcode='[[BDRT]]' + ;; +sco3.2v5*) + symcode='[[DT]]' + ;; +sysv4.2uw2*) + symcode='[[DT]]' + ;; +sysv5* | sco5v6* | unixware* | OpenUNIX*) + symcode='[[ABDT]]' + ;; +sysv4) + symcode='[[DFNSTU]]' + ;; +esac + +# If we're using GNU nm, then use its standard symbol codes. +case `$NM -V 2>&1` in +*GNU* | *'with BFD'*) + symcode='[[ABCDGIRSTW]]' ;; +esac + +if test "$lt_cv_nm_interface" = "MS dumpbin"; then + # Gets list of data symbols to import. + lt_cv_sys_global_symbol_to_import="sed -n -e 's/^I .* \(.*\)$/\1/p'" + # Adjust the below global symbol transforms to fixup imported variables. + lt_cdecl_hook=" -e 's/^I .* \(.*\)$/extern __declspec(dllimport) char \1;/p'" + lt_c_name_hook=" -e 's/^I .* \(.*\)$/ {\"\1\", (void *) 0},/p'" + lt_c_name_lib_hook="\ + -e 's/^I .* \(lib.*\)$/ {\"\1\", (void *) 0},/p'\ + -e 's/^I .* \(.*\)$/ {\"lib\1\", (void *) 0},/p'" +else + # Disable hooks by default. + lt_cv_sys_global_symbol_to_import= + lt_cdecl_hook= + lt_c_name_hook= + lt_c_name_lib_hook= +fi + +# Transform an extracted symbol line into a proper C declaration. +# Some systems (esp. on ia64) link data and code symbols differently, +# so use this general approach. +lt_cv_sys_global_symbol_to_cdecl="sed -n"\ +$lt_cdecl_hook\ +" -e 's/^T .* \(.*\)$/extern int \1();/p'"\ +" -e 's/^$symcode$symcode* .* \(.*\)$/extern char \1;/p'" + +# Transform an extracted symbol line into symbol name and symbol address +lt_cv_sys_global_symbol_to_c_name_address="sed -n"\ +$lt_c_name_hook\ +" -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\ +" -e 's/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/p'" + +# Transform an extracted symbol line into symbol name with lib prefix and +# symbol address. +lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n"\ +$lt_c_name_lib_hook\ +" -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\ +" -e 's/^$symcode$symcode* .* \(lib.*\)$/ {\"\1\", (void *) \&\1},/p'"\ +" -e 's/^$symcode$symcode* .* \(.*\)$/ {\"lib\1\", (void *) \&\1},/p'" + +# Handle CRLF in mingw tool chain +opt_cr= +case $build_os in +mingw*) + opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp + ;; +esac + +# Try without a prefix underscore, then with it. +for ac_symprfx in "" "_"; do + + # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol. + symxfrm="\\1 $ac_symprfx\\2 \\2" + + # Write the raw and C identifiers. + if test "$lt_cv_nm_interface" = "MS dumpbin"; then + # Fake it for dumpbin and say T for any non-static function, + # D for any global variable and I for any imported variable. + # Also find C++ and __fastcall symbols from MSVC++, + # which start with @ or ?. + lt_cv_sys_global_symbol_pipe="$AWK ['"\ +" {last_section=section; section=\$ 3};"\ +" /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\ +" /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\ +" /^ *Symbol name *: /{split(\$ 0,sn,\":\"); si=substr(sn[2],2)};"\ +" /^ *Type *: code/{print \"T\",si,substr(si,length(prfx))};"\ +" /^ *Type *: data/{print \"I\",si,substr(si,length(prfx))};"\ +" \$ 0!~/External *\|/{next};"\ +" / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\ +" {if(hide[section]) next};"\ +" {f=\"D\"}; \$ 0~/\(\).*\|/{f=\"T\"};"\ +" {split(\$ 0,a,/\||\r/); split(a[2],s)};"\ +" s[1]~/^[@?]/{print f,s[1],s[1]; next};"\ +" s[1]~prfx {split(s[1],t,\"@\"); print f,t[1],substr(t[1],length(prfx))}"\ +" ' prfx=^$ac_symprfx]" + else + lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[[ ]]\($symcode$symcode*\)[[ ]][[ ]]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'" + fi + lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'" + + # Check to see that the pipe works correctly. + pipe_works=no + + rm -f conftest* + cat > conftest.$ac_ext <<_LT_EOF +#ifdef __cplusplus +extern "C" { +#endif +char nm_test_var; +void nm_test_func(void); +void nm_test_func(void){} +#ifdef __cplusplus +} +#endif +int main(){nm_test_var='a';nm_test_func();return(0);} +_LT_EOF + + if AC_TRY_EVAL(ac_compile); then + # Now try to grab the symbols. + nlist=conftest.nm + if AC_TRY_EVAL(NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) && test -s "$nlist"; then + # Try sorting and uniquifying the output. + if sort "$nlist" | uniq > "$nlist"T; then + mv -f "$nlist"T "$nlist" + else + rm -f "$nlist"T + fi + + # Make sure that we snagged all the symbols we need. + if $GREP ' nm_test_var$' "$nlist" >/dev/null; then + if $GREP ' nm_test_func$' "$nlist" >/dev/null; then + cat <<_LT_EOF > conftest.$ac_ext +/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ +#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE +/* DATA imports from DLLs on WIN32 can't be const, because runtime + relocations are performed -- see ld's documentation on pseudo-relocs. */ +# define LT@&t@_DLSYM_CONST +#elif defined __osf__ +/* This system does not cope well with relocations in const data. */ +# define LT@&t@_DLSYM_CONST +#else +# define LT@&t@_DLSYM_CONST const +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +_LT_EOF + # Now generate the symbol file. + eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext' + + cat <<_LT_EOF >> conftest.$ac_ext + +/* The mapping between symbol names and symbols. */ +LT@&t@_DLSYM_CONST struct { + const char *name; + void *address; +} +lt__PROGRAM__LTX_preloaded_symbols[[]] = +{ + { "@PROGRAM@", (void *) 0 }, +_LT_EOF + $SED "s/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext + cat <<\_LT_EOF >> conftest.$ac_ext + {0, (void *) 0} +}; + +/* This works around a problem in FreeBSD linker */ +#ifdef FREEBSD_WORKAROUND +static const void *lt_preloaded_setup() { + return lt__PROGRAM__LTX_preloaded_symbols; +} +#endif + +#ifdef __cplusplus +} +#endif +_LT_EOF + # Now try linking the two files. + mv conftest.$ac_objext conftstm.$ac_objext + lt_globsym_save_LIBS=$LIBS + lt_globsym_save_CFLAGS=$CFLAGS + LIBS=conftstm.$ac_objext + CFLAGS="$CFLAGS$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)" + if AC_TRY_EVAL(ac_link) && test -s conftest$ac_exeext; then + pipe_works=yes + fi + LIBS=$lt_globsym_save_LIBS + CFLAGS=$lt_globsym_save_CFLAGS + else + echo "cannot find nm_test_func in $nlist" >&AS_MESSAGE_LOG_FD + fi + else + echo "cannot find nm_test_var in $nlist" >&AS_MESSAGE_LOG_FD + fi + else + echo "cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD + fi + else + echo "$progname: failed program was:" >&AS_MESSAGE_LOG_FD + cat conftest.$ac_ext >&5 + fi + rm -rf conftest* conftst* + + # Do not use the global_symbol_pipe unless it works. + if test yes = "$pipe_works"; then + break + else + lt_cv_sys_global_symbol_pipe= + fi +done +]) +if test -z "$lt_cv_sys_global_symbol_pipe"; then + lt_cv_sys_global_symbol_to_cdecl= +fi +if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then + AC_MSG_RESULT(failed) +else + AC_MSG_RESULT(ok) +fi + +# Response file support. +if test "$lt_cv_nm_interface" = "MS dumpbin"; then + nm_file_list_spec='@' +elif $NM --help 2>/dev/null | grep '[[@]]FILE' >/dev/null; then + nm_file_list_spec='@' +fi + +_LT_DECL([global_symbol_pipe], [lt_cv_sys_global_symbol_pipe], [1], + [Take the output of nm and produce a listing of raw symbols and C names]) +_LT_DECL([global_symbol_to_cdecl], [lt_cv_sys_global_symbol_to_cdecl], [1], + [Transform the output of nm in a proper C declaration]) +_LT_DECL([global_symbol_to_import], [lt_cv_sys_global_symbol_to_import], [1], + [Transform the output of nm into a list of symbols to manually relocate]) +_LT_DECL([global_symbol_to_c_name_address], + [lt_cv_sys_global_symbol_to_c_name_address], [1], + [Transform the output of nm in a C name address pair]) +_LT_DECL([global_symbol_to_c_name_address_lib_prefix], + [lt_cv_sys_global_symbol_to_c_name_address_lib_prefix], [1], + [Transform the output of nm in a C name address pair when lib prefix is needed]) +_LT_DECL([nm_interface], [lt_cv_nm_interface], [1], + [The name lister interface]) +_LT_DECL([], [nm_file_list_spec], [1], + [Specify filename containing input files for $NM]) +]) # _LT_CMD_GLOBAL_SYMBOLS + + +# _LT_COMPILER_PIC([TAGNAME]) +# --------------------------- +m4_defun([_LT_COMPILER_PIC], +[m4_require([_LT_TAG_COMPILER])dnl +_LT_TAGVAR(lt_prog_compiler_wl, $1)= +_LT_TAGVAR(lt_prog_compiler_pic, $1)= +_LT_TAGVAR(lt_prog_compiler_static, $1)= + +m4_if([$1], [CXX], [ + # C++ specific cases for pic, static, wl, etc. + if test yes = "$GXX"; then + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + + case $host_os in + aix*) + # All AIX code is PIC. + if test ia64 = "$host_cpu"; then + # AIX 5 now supports IA64 processor + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + fi + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + m68k) + # FIXME: we need at least 68020 code to build shared libraries, but + # adding the '-m68020' flag to GCC prevents building anything better, + # like '-m68040'. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4' + ;; + esac + ;; + + beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*) + # PIC is the default for these OSes. + ;; + mingw* | cygwin* | os2* | pw32* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + # Although the cygwin gcc ignores -fPIC, still need this for old-style + # (--disable-auto-import) libraries + m4_if([$1], [GCJ], [], + [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) + case $host_os in + os2*) + _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static' + ;; + esac + ;; + darwin* | rhapsody*) + # PIC is the default on this platform + # Common symbols not allowed in MH_DYLIB files + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common' + ;; + *djgpp*) + # DJGPP does not support shared libraries at all + _LT_TAGVAR(lt_prog_compiler_pic, $1)= + ;; + haiku*) + # PIC is the default for Haiku. + # The "-static" flag exists, but is broken. + _LT_TAGVAR(lt_prog_compiler_static, $1)= + ;; + interix[[3-9]]*) + # Interix 3.x gcc -fpic/-fPIC options generate broken code. + # Instead, we relocate shared libraries at runtime. + ;; + sysv4*MP*) + if test -d /usr/nec; then + _LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic + fi + ;; + hpux*) + # PIC is the default for 64-bit PA HP-UX, but not for 32-bit + # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag + # sets the default TLS model and affects inlining. + case $host_cpu in + hppa*64*) + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + esac + ;; + *qnx* | *nto*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + esac + else + case $host_os in + aix[[4-9]]*) + # All AIX code is PIC. + if test ia64 = "$host_cpu"; then + # AIX 5 now supports IA64 processor + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + else + _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp' + fi + ;; + chorus*) + case $cc_basename in + cxch68*) + # Green Hills C++ Compiler + # _LT_TAGVAR(lt_prog_compiler_static, $1)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a" + ;; + esac + ;; + mingw* | cygwin* | os2* | pw32* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + m4_if([$1], [GCJ], [], + [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) + ;; + dgux*) + case $cc_basename in + ec++*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + ;; + ghcx*) + # Green Hills C++ Compiler + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' + ;; + *) + ;; + esac + ;; + freebsd* | dragonfly*) + # FreeBSD uses GNU C++ + ;; + hpux9* | hpux10* | hpux11*) + case $cc_basename in + CC*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive' + if test ia64 != "$host_cpu"; then + _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' + fi + ;; + aCC*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive' + case $host_cpu in + hppa*64*|ia64*) + # +Z the default + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' + ;; + esac + ;; + *) + ;; + esac + ;; + interix*) + # This is c89, which is MS Visual C++ (no shared libs) + # Anyone wants to do a port? + ;; + irix5* | irix6* | nonstopux*) + case $cc_basename in + CC*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + # CC pic flag -KPIC is the default. + ;; + *) + ;; + esac + ;; + linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + case $cc_basename in + KCC*) + # KAI C++ Compiler + _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + ecpc* ) + # old Intel C++ for x86_64, which still supported -KPIC. + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + icpc* ) + # Intel C++, used to be incompatible with GCC. + # ICC 10 doesn't accept -KPIC any more. + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + pgCC* | pgcpp*) + # Portland Group C++ compiler + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + cxx*) + # Compaq C++ + # Make sure the PIC flag is empty. It appears that all Alpha + # Linux and Compaq Tru64 Unix objects are PIC. + _LT_TAGVAR(lt_prog_compiler_pic, $1)= + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + xlc* | xlC* | bgxl[[cC]]* | mpixl[[cC]]*) + # IBM XL 8.0, 9.0 on PPC and BlueGene + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink' + ;; + *) + case `$CC -V 2>&1 | sed 5q` in + *Sun\ C*) + # Sun C++ 5.9 + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' + ;; + esac + ;; + esac + ;; + lynxos*) + ;; + m88k*) + ;; + mvs*) + case $cc_basename in + cxx*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-W c,exportall' + ;; + *) + ;; + esac + ;; + netbsd*) + ;; + *qnx* | *nto*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' + ;; + osf3* | osf4* | osf5*) + case $cc_basename in + KCC*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,' + ;; + RCC*) + # Rational C++ 2.4.1 + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' + ;; + cxx*) + # Digital/Compaq C++ + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + # Make sure the PIC flag is empty. It appears that all Alpha + # Linux and Compaq Tru64 Unix objects are PIC. + _LT_TAGVAR(lt_prog_compiler_pic, $1)= + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + *) + ;; + esac + ;; + psos*) + ;; + solaris*) + case $cc_basename in + CC* | sunCC*) + # Sun C++ 4.2, 5.x and Centerline C++ + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' + ;; + gcx*) + # Green Hills C++ Compiler + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' + ;; + *) + ;; + esac + ;; + sunos4*) + case $cc_basename in + CC*) + # Sun C++ 4.x + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + lcc*) + # Lucid + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' + ;; + *) + ;; + esac + ;; + sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*) + case $cc_basename in + CC*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + esac + ;; + tandem*) + case $cc_basename in + NCC*) + # NonStop-UX NCC 3.20 + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + ;; + *) + ;; + esac + ;; + vxworks*) + ;; + *) + _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no + ;; + esac + fi +], +[ + if test yes = "$GCC"; then + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + + case $host_os in + aix*) + # All AIX code is PIC. + if test ia64 = "$host_cpu"; then + # AIX 5 now supports IA64 processor + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + fi + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + m68k) + # FIXME: we need at least 68020 code to build shared libraries, but + # adding the '-m68020' flag to GCC prevents building anything better, + # like '-m68040'. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4' + ;; + esac + ;; + + beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*) + # PIC is the default for these OSes. + ;; + + mingw* | cygwin* | pw32* | os2* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + # Although the cygwin gcc ignores -fPIC, still need this for old-style + # (--disable-auto-import) libraries + m4_if([$1], [GCJ], [], + [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) + case $host_os in + os2*) + _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static' + ;; + esac + ;; + + darwin* | rhapsody*) + # PIC is the default on this platform + # Common symbols not allowed in MH_DYLIB files + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common' + ;; + + haiku*) + # PIC is the default for Haiku. + # The "-static" flag exists, but is broken. + _LT_TAGVAR(lt_prog_compiler_static, $1)= + ;; + + hpux*) + # PIC is the default for 64-bit PA HP-UX, but not for 32-bit + # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag + # sets the default TLS model and affects inlining. + case $host_cpu in + hppa*64*) + # +Z the default + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + esac + ;; + + interix[[3-9]]*) + # Interix 3.x gcc -fpic/-fPIC options generate broken code. + # Instead, we relocate shared libraries at runtime. + ;; + + msdosdjgpp*) + # Just because we use GCC doesn't mean we suddenly get shared libraries + # on systems that don't support them. + _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no + enable_shared=no + ;; + + *nto* | *qnx*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' + ;; + + sysv4*MP*) + if test -d /usr/nec; then + _LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic + fi + ;; + + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + ;; + esac + + case $cc_basename in + nvcc*) # Cuda Compiler Driver 2.2 + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Xlinker ' + if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then + _LT_TAGVAR(lt_prog_compiler_pic, $1)="-Xcompiler $_LT_TAGVAR(lt_prog_compiler_pic, $1)" + fi + ;; + esac + else + # PORTME Check for flag to pass linker flags through the system compiler. + case $host_os in + aix*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + if test ia64 = "$host_cpu"; then + # AIX 5 now supports IA64 processor + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + else + _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp' + fi + ;; + + darwin* | rhapsody*) + # PIC is the default on this platform + # Common symbols not allowed in MH_DYLIB files + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common' + case $cc_basename in + nagfor*) + # NAG Fortran compiler + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + esac + ;; + + mingw* | cygwin* | pw32* | os2* | cegcc*) + # This hack is so that the source file can tell whether it is being + # built for inclusion in a dll (and should export symbols for example). + m4_if([$1], [GCJ], [], + [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) + case $host_os in + os2*) + _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static' + ;; + esac + ;; + + hpux9* | hpux10* | hpux11*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but + # not for PA HP-UX. + case $host_cpu in + hppa*64*|ia64*) + # +Z the default + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' + ;; + esac + # Is there a better lt_prog_compiler_static that works with the bundled CC? + _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive' + ;; + + irix5* | irix6* | nonstopux*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + # PIC (with -KPIC) is the default. + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + + linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + case $cc_basename in + # old Intel for x86_64, which still supported -KPIC. + ecc*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + # icc used to be incompatible with GCC. + # ICC 10 doesn't accept -KPIC any more. + icc* | ifort*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + # Lahey Fortran 8.1. + lf95*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='--shared' + _LT_TAGVAR(lt_prog_compiler_static, $1)='--static' + ;; + nagfor*) + # NAG Fortran compiler + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + tcc*) + # Fabrice Bellard et al's Tiny C Compiler + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*) + # Portland Group compilers (*not* the Pentium gcc compiler, + # which looks to be a dead project) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + ccc*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + # All Alpha code is PIC. + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + xl* | bgxl* | bgf* | mpixl*) + # IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink' + ;; + *) + case `$CC -V 2>&1 | sed 5q` in + *Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [[1-7]].* | *Sun*Fortran*\ 8.[[0-3]]*) + # Sun Fortran 8.3 passes all unrecognized flags to the linker + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + _LT_TAGVAR(lt_prog_compiler_wl, $1)='' + ;; + *Sun\ F* | *Sun*Fortran*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' + ;; + *Sun\ C*) + # Sun C 5.9 + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + ;; + *Intel*\ [[CF]]*Compiler*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' + ;; + *Portland\ Group*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + esac + ;; + esac + ;; + + newsos6) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + + *nto* | *qnx*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' + ;; + + osf3* | osf4* | osf5*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + # All OSF/1 code is PIC. + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + + rdos*) + _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' + ;; + + solaris*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + case $cc_basename in + f77* | f90* | f95* | sunf77* | sunf90* | sunf95*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ';; + *) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,';; + esac + ;; + + sunos4*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + + sysv4 | sysv4.2uw2* | sysv4.3*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + + sysv4*MP*) + if test -d /usr/nec; then + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-Kconform_pic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + fi + ;; + + sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + + unicos*) + _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' + _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no + ;; + + uts4*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' + _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' + ;; + + *) + _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no + ;; + esac + fi +]) +case $host_os in + # For platforms that do not support PIC, -DPIC is meaningless: + *djgpp*) + _LT_TAGVAR(lt_prog_compiler_pic, $1)= + ;; + *) + _LT_TAGVAR(lt_prog_compiler_pic, $1)="$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])" + ;; +esac + +AC_CACHE_CHECK([for $compiler option to produce PIC], + [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)], + [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_prog_compiler_pic, $1)]) +_LT_TAGVAR(lt_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_cv_prog_compiler_pic, $1) + +# +# Check to make sure the PIC flag actually works. +# +if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then + _LT_COMPILER_OPTION([if $compiler PIC flag $_LT_TAGVAR(lt_prog_compiler_pic, $1) works], + [_LT_TAGVAR(lt_cv_prog_compiler_pic_works, $1)], + [$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])], [], + [case $_LT_TAGVAR(lt_prog_compiler_pic, $1) in + "" | " "*) ;; + *) _LT_TAGVAR(lt_prog_compiler_pic, $1)=" $_LT_TAGVAR(lt_prog_compiler_pic, $1)" ;; + esac], + [_LT_TAGVAR(lt_prog_compiler_pic, $1)= + _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no]) +fi +_LT_TAGDECL([pic_flag], [lt_prog_compiler_pic], [1], + [Additional compiler flags for building library objects]) + +_LT_TAGDECL([wl], [lt_prog_compiler_wl], [1], + [How to pass a linker flag through the compiler]) +# +# Check to make sure the static flag actually works. +# +wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1) eval lt_tmp_static_flag=\"$_LT_TAGVAR(lt_prog_compiler_static, $1)\" +_LT_LINKER_OPTION([if $compiler static flag $lt_tmp_static_flag works], + _LT_TAGVAR(lt_cv_prog_compiler_static_works, $1), + $lt_tmp_static_flag, + [], + [_LT_TAGVAR(lt_prog_compiler_static, $1)=]) +_LT_TAGDECL([link_static_flag], [lt_prog_compiler_static], [1], + [Compiler flag to prevent dynamic linking]) +])# _LT_COMPILER_PIC + + +# _LT_LINKER_SHLIBS([TAGNAME]) +# ---------------------------- +# See if the linker supports building shared libraries. +m4_defun([_LT_LINKER_SHLIBS], +[AC_REQUIRE([LT_PATH_LD])dnl +AC_REQUIRE([LT_PATH_NM])dnl +m4_require([_LT_PATH_MANIFEST_TOOL])dnl +m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_DECL_EGREP])dnl +m4_require([_LT_DECL_SED])dnl +m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl +m4_require([_LT_TAG_COMPILER])dnl +AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries]) +m4_if([$1], [CXX], [ + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols' + _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*'] + case $host_os in + aix[[4-9]]*) + # If we're using GNU nm, then we don't want the "-C" option. + # -C means demangle to GNU nm, but means don't demangle to AIX nm. + # Without the "-l" option, or with the "-B" option, AIX nm treats + # weak defined symbols like other global defined symbols, whereas + # GNU nm marks them as "W". + # While the 'weak' keyword is ignored in the Export File, we need + # it in the Import File for the 'aix-soname' feature, so we have + # to replace the "-B" option with "-P" for AIX nm. + if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then + _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && ([substr](\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols' + else + _LT_TAGVAR(export_symbols_cmds, $1)='`func_echo_all $NM | $SED -e '\''s/B\([[^B]]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && ([substr](\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols' + fi + ;; + pw32*) + _LT_TAGVAR(export_symbols_cmds, $1)=$ltdll_cmds + ;; + cygwin* | mingw* | cegcc*) + case $cc_basename in + cl*) + _LT_TAGVAR(exclude_expsyms, $1)='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*' + ;; + *) + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols' + _LT_TAGVAR(exclude_expsyms, $1)=['[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname'] + ;; + esac + ;; + *) + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols' + ;; + esac +], [ + runpath_var= + _LT_TAGVAR(allow_undefined_flag, $1)= + _LT_TAGVAR(always_export_symbols, $1)=no + _LT_TAGVAR(archive_cmds, $1)= + _LT_TAGVAR(archive_expsym_cmds, $1)= + _LT_TAGVAR(compiler_needs_object, $1)=no + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no + _LT_TAGVAR(export_dynamic_flag_spec, $1)= + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols' + _LT_TAGVAR(hardcode_automatic, $1)=no + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_direct_absolute, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)= + _LT_TAGVAR(hardcode_libdir_separator, $1)= + _LT_TAGVAR(hardcode_minus_L, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported + _LT_TAGVAR(inherit_rpath, $1)=no + _LT_TAGVAR(link_all_deplibs, $1)=unknown + _LT_TAGVAR(module_cmds, $1)= + _LT_TAGVAR(module_expsym_cmds, $1)= + _LT_TAGVAR(old_archive_from_new_cmds, $1)= + _LT_TAGVAR(old_archive_from_expsyms_cmds, $1)= + _LT_TAGVAR(thread_safe_flag_spec, $1)= + _LT_TAGVAR(whole_archive_flag_spec, $1)= + # include_expsyms should be a list of space-separated symbols to be *always* + # included in the symbol list + _LT_TAGVAR(include_expsyms, $1)= + # exclude_expsyms can be an extended regexp of symbols to exclude + # it will be wrapped by ' (' and ')$', so one must not match beginning or + # end of line. Example: 'a|bc|.*d.*' will exclude the symbols 'a' and 'bc', + # as well as any symbol that contains 'd'. + _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*'] + # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out + # platforms (ab)use it in PIC code, but their linkers get confused if + # the symbol is explicitly referenced. Since portable code cannot + # rely on this symbol name, it's probably fine to never include it in + # preloaded symbol tables. + # Exclude shared library initialization/finalization symbols. +dnl Note also adjust exclude_expsyms for C++ above. + extract_expsyms_cmds= + + case $host_os in + cygwin* | mingw* | pw32* | cegcc*) + # FIXME: the MSVC++ port hasn't been tested in a loooong time + # When not using gcc, we currently assume that we are using + # Microsoft Visual C++. + if test yes != "$GCC"; then + with_gnu_ld=no + fi + ;; + interix*) + # we just hope/assume this is gcc and not c89 (= MSVC++) + with_gnu_ld=yes + ;; + openbsd* | bitrig*) + with_gnu_ld=no + ;; + esac + + _LT_TAGVAR(ld_shlibs, $1)=yes + + # On some targets, GNU ld is compatible enough with the native linker + # that we're better off using the native interface for both. + lt_use_gnu_ld_interface=no + if test yes = "$with_gnu_ld"; then + case $host_os in + aix*) + # The AIX port of GNU ld has always aspired to compatibility + # with the native linker. However, as the warning in the GNU ld + # block says, versions before 2.19.5* couldn't really create working + # shared libraries, regardless of the interface used. + case `$LD -v 2>&1` in + *\ \(GNU\ Binutils\)\ 2.19.5*) ;; + *\ \(GNU\ Binutils\)\ 2.[[2-9]]*) ;; + *\ \(GNU\ Binutils\)\ [[3-9]]*) ;; + *) + lt_use_gnu_ld_interface=yes + ;; + esac + ;; + *) + lt_use_gnu_ld_interface=yes + ;; + esac + fi + + if test yes = "$lt_use_gnu_ld_interface"; then + # If archive_cmds runs LD, not CC, wlarc should be empty + wlarc='$wl' + + # Set some defaults for GNU ld with shared library support. These + # are reset later if shared libraries are not supported. Putting them + # here allows them to be overridden if necessary. + runpath_var=LD_RUN_PATH + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic' + # ancient GNU ld didn't support --whole-archive et. al. + if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then + _LT_TAGVAR(whole_archive_flag_spec, $1)=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive' + else + _LT_TAGVAR(whole_archive_flag_spec, $1)= + fi + supports_anon_versioning=no + case `$LD -v | $SED -e 's/([^)]\+)\s\+//' 2>&1` in + *GNU\ gold*) supports_anon_versioning=yes ;; + *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.10.*) ;; # catch versions < 2.11 + *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ... + *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ... + *\ 2.11.*) ;; # other 2.11 versions + *) supports_anon_versioning=yes ;; + esac + + # See if GNU ld supports shared libraries. + case $host_os in + aix[[3-9]]*) + # On AIX/PPC, the GNU linker is very broken + if test ia64 != "$host_cpu"; then + _LT_TAGVAR(ld_shlibs, $1)=no + cat <<_LT_EOF 1>&2 + +*** Warning: the GNU linker, at least up to release 2.19, is reported +*** to be unable to reliably create shared libraries on AIX. +*** Therefore, libtool is disabling shared libraries support. If you +*** really care for shared libraries, you may want to install binutils +*** 2.20 or above, or modify your PATH so that a non-GNU linker is found. +*** You will then need to restart the configuration process. + +_LT_EOF + fi + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='' + ;; + m68k) + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_minus_L, $1)=yes + ;; + esac + ;; + + beos*) + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + # Joseph Beckenbach says some releases of gcc + # support --undefined. This deserves some investigation. FIXME + _LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + cygwin* | mingw* | pw32* | cegcc*) + # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless, + # as there is no search path for DLLs. + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-all-symbols' + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + _LT_TAGVAR(always_export_symbols, $1)=no + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols' + _LT_TAGVAR(exclude_expsyms, $1)=['[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname'] + + if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + # If the export-symbols file already is a .def file, use it as + # is; otherwise, prepend EXPORTS... + _LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then + cp $export_symbols $output_objdir/$soname.def; + else + echo EXPORTS > $output_objdir/$soname.def; + cat $export_symbols >> $output_objdir/$soname.def; + fi~ + $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + haiku*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(link_all_deplibs, $1)=yes + ;; + + os2*) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + shrext_cmds=.dll + _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + _LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + prefix_cmds="$SED"~ + if test EXPORTS = "`$SED 1q $export_symbols`"; then + prefix_cmds="$prefix_cmds -e 1d"; + fi~ + prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~ + cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + _LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def' + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + ;; + + interix[[3-9]]*) + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' + # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc. + # Instead, shared libraries are loaded at an image base (0x10000000 by + # default) and relocated if they conflict, which is a slow very memory + # consuming and fragmenting process. To avoid this, we pick a random, + # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link + # time. Moving up from 0x10000000 also allows more sbrk(2) space. + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='sed "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + ;; + + gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu) + tmp_diet=no + if test linux-dietlibc = "$host_os"; then + case $cc_basename in + diet\ *) tmp_diet=yes;; # linux-dietlibc with static linking (!diet-dyn) + esac + fi + if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \ + && test no = "$tmp_diet" + then + tmp_addflag=' $pic_flag' + tmp_sharedflag='-shared' + case $cc_basename,$host_cpu in + pgcc*) # Portland Group C compiler + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + tmp_addflag=' $pic_flag' + ;; + pgf77* | pgf90* | pgf95* | pgfortran*) + # Portland Group f77 and f90 compilers + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + tmp_addflag=' $pic_flag -Mnomain' ;; + ecc*,ia64* | icc*,ia64*) # Intel C compiler on ia64 + tmp_addflag=' -i_dynamic' ;; + efc*,ia64* | ifort*,ia64*) # Intel Fortran compiler on ia64 + tmp_addflag=' -i_dynamic -nofor_main' ;; + ifc* | ifort*) # Intel Fortran compiler + tmp_addflag=' -nofor_main' ;; + lf95*) # Lahey Fortran 8.1 + _LT_TAGVAR(whole_archive_flag_spec, $1)= + tmp_sharedflag='--shared' ;; + nagfor*) # NAGFOR 5.3 + tmp_sharedflag='-Wl,-shared' ;; + xl[[cC]]* | bgxl[[cC]]* | mpixl[[cC]]*) # IBM XL C 8.0 on PPC (deal with xlf below) + tmp_sharedflag='-qmkshrobj' + tmp_addflag= ;; + nvcc*) # Cuda Compiler Driver 2.2 + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + _LT_TAGVAR(compiler_needs_object, $1)=yes + ;; + esac + case `$CC -V 2>&1 | sed 5q` in + *Sun\ C*) # Sun C 5.9 + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + _LT_TAGVAR(compiler_needs_object, $1)=yes + tmp_sharedflag='-G' ;; + *Sun\ F*) # Sun Fortran 8.3 + tmp_sharedflag='-G' ;; + esac + _LT_TAGVAR(archive_cmds, $1)='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + + if test yes = "$supports_anon_versioning"; then + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~ + cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~ + echo "local: *; };" >> $output_objdir/$libname.ver~ + $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib' + fi + + case $cc_basename in + tcc*) + _LT_TAGVAR(export_dynamic_flag_spec, $1)='-rdynamic' + ;; + xlf* | bgf* | bgxlf* | mpixlf*) + # IBM XL Fortran 10.1 on PPC cannot create shared libs itself + _LT_TAGVAR(whole_archive_flag_spec, $1)='--whole-archive$convenience --no-whole-archive' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(archive_cmds, $1)='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib' + if test yes = "$supports_anon_versioning"; then + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~ + cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~ + echo "local: *; };" >> $output_objdir/$libname.ver~ + $LD -shared $libobjs $deplibs $linker_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib' + fi + ;; + esac + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + netbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib' + wlarc= + else + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + fi + ;; + + solaris*) + if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then + _LT_TAGVAR(ld_shlibs, $1)=no + cat <<_LT_EOF 1>&2 + +*** Warning: The releases 2.8.* of the GNU linker cannot reliably +*** create shared libraries on Solaris systems. Therefore, libtool +*** is disabling shared libraries support. We urge you to upgrade GNU +*** binutils to release 2.9.1 or newer. Another option is to modify +*** your PATH or compiler configuration so that the native linker is +*** used, and then restart. + +_LT_EOF + elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*) + case `$LD -v 2>&1` in + *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.1[[0-5]].*) + _LT_TAGVAR(ld_shlibs, $1)=no + cat <<_LT_EOF 1>&2 + +*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 cannot +*** reliably create shared libraries on SCO systems. Therefore, libtool +*** is disabling shared libraries support. We urge you to upgrade GNU +*** binutils to release 2.16.91.0.3 or newer. Another option is to modify +*** your PATH or compiler configuration so that the native linker is +*** used, and then restart. + +_LT_EOF + ;; + *) + # For security reasons, it is highly recommended that you always + # use absolute paths for naming shared libraries, and exclude the + # DT_RUNPATH tag from executables and libraries. But doing so + # requires that you compile everything twice, which is a pain. + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + ;; + + sunos4*) + _LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags' + wlarc= + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + *) + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + + if test no = "$_LT_TAGVAR(ld_shlibs, $1)"; then + runpath_var= + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)= + _LT_TAGVAR(export_dynamic_flag_spec, $1)= + _LT_TAGVAR(whole_archive_flag_spec, $1)= + fi + else + # PORTME fill in a description of your system's linker (not GNU ld) + case $host_os in + aix3*) + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + _LT_TAGVAR(always_export_symbols, $1)=yes + _LT_TAGVAR(archive_expsym_cmds, $1)='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname' + # Note: this linker hardcodes the directories in LIBPATH if there + # are no directories specified by -L. + _LT_TAGVAR(hardcode_minus_L, $1)=yes + if test yes = "$GCC" && test -z "$lt_prog_compiler_static"; then + # Neither direct hardcoding nor static linking is supported with a + # broken collect2. + _LT_TAGVAR(hardcode_direct, $1)=unsupported + fi + ;; + + aix[[4-9]]*) + if test ia64 = "$host_cpu"; then + # On IA64, the linker does run time linking by default, so we don't + # have to do anything special. + aix_use_runtimelinking=no + exp_sym_flag='-Bexport' + no_entry_flag= + else + # If we're using GNU nm, then we don't want the "-C" option. + # -C means demangle to GNU nm, but means don't demangle to AIX nm. + # Without the "-l" option, or with the "-B" option, AIX nm treats + # weak defined symbols like other global defined symbols, whereas + # GNU nm marks them as "W". + # While the 'weak' keyword is ignored in the Export File, we need + # it in the Import File for the 'aix-soname' feature, so we have + # to replace the "-B" option with "-P" for AIX nm. + if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then + _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && ([substr](\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols' + else + _LT_TAGVAR(export_symbols_cmds, $1)='`func_echo_all $NM | $SED -e '\''s/B\([[^B]]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && ([substr](\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols' + fi + aix_use_runtimelinking=no + + # Test if we are trying to use run time linking or normal + # AIX style linking. If -brtl is somewhere in LDFLAGS, we + # have runtime linking enabled, and use it for executables. + # For shared libraries, we enable/disable runtime linking + # depending on the kind of the shared library created - + # when "with_aix_soname,aix_use_runtimelinking" is: + # "aix,no" lib.a(lib.so.V) shared, rtl:no, for executables + # "aix,yes" lib.so shared, rtl:yes, for executables + # lib.a static archive + # "both,no" lib.so.V(shr.o) shared, rtl:yes + # lib.a(lib.so.V) shared, rtl:no, for executables + # "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables + # lib.a(lib.so.V) shared, rtl:no + # "svr4,*" lib.so.V(shr.o) shared, rtl:yes, for executables + # lib.a static archive + case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*) + for ld_flag in $LDFLAGS; do + if (test x-brtl = "x$ld_flag" || test x-Wl,-brtl = "x$ld_flag"); then + aix_use_runtimelinking=yes + break + fi + done + if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then + # With aix-soname=svr4, we create the lib.so.V shared archives only, + # so we don't have lib.a shared libs to link our executables. + # We have to force runtime linking in this case. + aix_use_runtimelinking=yes + LDFLAGS="$LDFLAGS -Wl,-brtl" + fi + ;; + esac + + exp_sym_flag='-bexport' + no_entry_flag='-bnoentry' + fi + + # When large executables or shared objects are built, AIX ld can + # have problems creating the table of contents. If linking a library + # or program results in "error TOC overflow" add -mminimal-toc to + # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not + # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS. + + _LT_TAGVAR(archive_cmds, $1)='' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(hardcode_libdir_separator, $1)=':' + _LT_TAGVAR(link_all_deplibs, $1)=yes + _LT_TAGVAR(file_list_spec, $1)='$wl-f,' + case $with_aix_soname,$aix_use_runtimelinking in + aix,*) ;; # traditional, no import file + svr4,* | *,yes) # use import file + # The Import File defines what to hardcode. + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_direct_absolute, $1)=no + ;; + esac + + if test yes = "$GCC"; then + case $host_os in aix4.[[012]]|aix4.[[012]].*) + # We only want to do this on AIX 4.2 and lower, the check + # below for broken collect2 doesn't work under 4.3+ + collect2name=`$CC -print-prog-name=collect2` + if test -f "$collect2name" && + strings "$collect2name" | $GREP resolve_lib_name >/dev/null + then + # We have reworked collect2 + : + else + # We have old collect2 + _LT_TAGVAR(hardcode_direct, $1)=unsupported + # It fails to find uninstalled libraries when the uninstalled + # path is not listed in the libpath. Setting hardcode_minus_L + # to unsupported forces relinking + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)= + fi + ;; + esac + shared_flag='-shared' + if test yes = "$aix_use_runtimelinking"; then + shared_flag="$shared_flag "'$wl-G' + fi + # Need to ensure runtime linking is disabled for the traditional + # shared library, or the linker may eventually find shared libraries + # /with/ Import File - we do not want to mix them. + shared_flag_aix='-shared' + shared_flag_svr4='-shared $wl-G' + else + # not using gcc + if test ia64 = "$host_cpu"; then + # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release + # chokes on -Wl,-G. The following line is correct: + shared_flag='-G' + else + if test yes = "$aix_use_runtimelinking"; then + shared_flag='$wl-G' + else + shared_flag='$wl-bM:SRE' + fi + shared_flag_aix='$wl-bM:SRE' + shared_flag_svr4='$wl-G' + fi + fi + + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-bexpall' + # It seems that -bexpall does not export symbols beginning with + # underscore (_), so it is better to generate a list of symbols to export. + _LT_TAGVAR(always_export_symbols, $1)=yes + if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then + # Warning - without using the other runtime loading flags (-brtl), + # -berok will link without error, but may produce a broken library. + _LT_TAGVAR(allow_undefined_flag, $1)='-berok' + # Determine the default libpath from the value encoded in an + # empty executable. + _LT_SYS_MODULE_PATH_AIX([$1]) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath" + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag + else + if test ia64 = "$host_cpu"; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $libdir:/usr/lib:/lib' + _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs" + _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols" + else + # Determine the default libpath from the value encoded in an + # empty executable. + _LT_SYS_MODULE_PATH_AIX([$1]) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath" + # Warning - without using the other run time loading flags, + # -berok will link without error, but may produce a broken library. + _LT_TAGVAR(no_undefined_flag, $1)=' $wl-bernotok' + _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-berok' + if test yes = "$with_gnu_ld"; then + # We only use this code for GNU lds that support --whole-archive. + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive' + else + # Exported symbols can be pulled into shared objects from archives + _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience' + fi + _LT_TAGVAR(archive_cmds_need_lc, $1)=yes + _LT_TAGVAR(archive_expsym_cmds, $1)='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d' + # -brtl affects multiple linker settings, -berok does not and is overridden later + compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([[, ]]\\)%-berok\\1%g"`' + if test svr4 != "$with_aix_soname"; then + # This is similar to how AIX traditionally builds its shared libraries. + _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname' + fi + if test aix != "$with_aix_soname"; then + _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp' + else + # used by -dlpreopen to get the symbols + _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$MV $output_objdir/$realname.d/$soname $output_objdir' + fi + _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$RM -r $output_objdir/$realname.d' + fi + fi + ;; + + amigaos*) + case $host_cpu in + powerpc) + # see comment about AmigaOS4 .so support + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='' + ;; + m68k) + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_minus_L, $1)=yes + ;; + esac + ;; + + bsdi[[45]]*) + _LT_TAGVAR(export_dynamic_flag_spec, $1)=-rdynamic + ;; + + cygwin* | mingw* | pw32* | cegcc*) + # When not using gcc, we currently assume that we are using + # Microsoft Visual C++. + # hardcode_libdir_flag_spec is actually meaningless, as there is + # no search path for DLLs. + case $cc_basename in + cl*) + # Native MSVC + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' ' + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + _LT_TAGVAR(always_export_symbols, $1)=yes + _LT_TAGVAR(file_list_spec, $1)='@' + # Tell ltmain to make .lib files, not .a files. + libext=lib + # Tell ltmain to make .dll files, not .so files. + shrext_cmds=.dll + # FIXME: Setting linknames here is a bad hack. + _LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames=' + _LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then + cp "$export_symbols" "$output_objdir/$soname.def"; + echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp"; + else + $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp; + fi~ + $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~ + linknames=' + # The linker will not automatically build a static lib if we build a DLL. + # _LT_TAGVAR(old_archive_from_new_cmds, $1)='true' + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + _LT_TAGVAR(exclude_expsyms, $1)='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*' + _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1,DATA/'\'' | $SED -e '\''/^[[AITW]][[ ]]/s/.*[[ ]]//'\'' | sort | uniq > $export_symbols' + # Don't use ranlib + _LT_TAGVAR(old_postinstall_cmds, $1)='chmod 644 $oldlib' + _LT_TAGVAR(postlink_cmds, $1)='lt_outputfile="@OUTPUT@"~ + lt_tool_outputfile="@TOOL_OUTPUT@"~ + case $lt_outputfile in + *.exe|*.EXE) ;; + *) + lt_outputfile=$lt_outputfile.exe + lt_tool_outputfile=$lt_tool_outputfile.exe + ;; + esac~ + if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then + $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1; + $RM "$lt_outputfile.manifest"; + fi' + ;; + *) + # Assume MSVC wrapper + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' ' + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + # Tell ltmain to make .lib files, not .a files. + libext=lib + # Tell ltmain to make .dll files, not .so files. + shrext_cmds=.dll + # FIXME: Setting linknames here is a bad hack. + _LT_TAGVAR(archive_cmds, $1)='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames=' + # The linker will automatically build a .lib file if we build a DLL. + _LT_TAGVAR(old_archive_from_new_cmds, $1)='true' + # FIXME: Should let the user specify the lib program. + _LT_TAGVAR(old_archive_cmds, $1)='lib -OUT:$oldlib$oldobjs$old_deplibs' + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + ;; + esac + ;; + + darwin* | rhapsody*) + _LT_DARWIN_LINKER_FEATURES($1) + ;; + + dgux*) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor + # support. Future versions do this automatically, but an explicit c++rt0.o + # does not break anything, and helps significantly (at the cost of a little + # extra space). + freebsd2.2*) + _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + # Unfortunately, older versions of FreeBSD 2 do not have this feature. + freebsd2.*) + _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + # FreeBSD 3 and greater uses gcc -shared to do shared libraries. + freebsd* | dragonfly*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + hpux9*) + if test yes = "$GCC"; then + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib' + else + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib' + fi + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(hardcode_direct, $1)=yes + + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' + ;; + + hpux10*) + if test yes,no = "$GCC,$with_gnu_ld"; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags' + else + _LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' + fi + if test no = "$with_gnu_ld"; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + _LT_TAGVAR(hardcode_minus_L, $1)=yes + fi + ;; + + hpux11*) + if test yes,no = "$GCC,$with_gnu_ld"; then + case $host_cpu in + hppa*64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + ia64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags' + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags' + ;; + esac + else + case $host_cpu in + hppa*64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + ia64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags' + ;; + *) + m4_if($1, [], [ + # Older versions of the 11.00 compiler do not understand -b yet + # (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does) + _LT_LINKER_OPTION([if $CC understands -b], + _LT_TAGVAR(lt_cv_prog_compiler__b, $1), [-b], + [_LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'], + [_LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'])], + [_LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags']) + ;; + esac + fi + if test no = "$with_gnu_ld"; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + case $host_cpu in + hppa*64*|ia64*) + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + *) + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' + + # hardcode_minus_L: Not really in the search PATH, + # but as the default location of the library. + _LT_TAGVAR(hardcode_minus_L, $1)=yes + ;; + esac + fi + ;; + + irix5* | irix6* | nonstopux*) + if test yes = "$GCC"; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' + # Try to use the -exported_symbol ld option, if it does not + # work, assume that -exports_file does not work either and + # implicitly export all symbols. + # This should be the same for all languages, so no per-tag cache variable. + AC_CACHE_CHECK([whether the $host_os linker accepts -exported_symbol], + [lt_cv_irix_exported_symbol], + [save_LDFLAGS=$LDFLAGS + LDFLAGS="$LDFLAGS -shared $wl-exported_symbol ${wl}foo $wl-update_registry $wl/dev/null" + AC_LINK_IFELSE( + [AC_LANG_SOURCE( + [AC_LANG_CASE([C], [[int foo (void) { return 0; }]], + [C++], [[int foo (void) { return 0; }]], + [Fortran 77], [[ + subroutine foo + end]], + [Fortran], [[ + subroutine foo + end]])])], + [lt_cv_irix_exported_symbol=yes], + [lt_cv_irix_exported_symbol=no]) + LDFLAGS=$save_LDFLAGS]) + if test yes = "$lt_cv_irix_exported_symbol"; then + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations $wl-exports_file $wl$export_symbols -o $lib' + fi + else + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -exports_file $export_symbols -o $lib' + fi + _LT_TAGVAR(archive_cmds_need_lc, $1)='no' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(inherit_rpath, $1)=yes + _LT_TAGVAR(link_all_deplibs, $1)=yes + ;; + + linux*) + case $cc_basename in + tcc*) + # Fabrice Bellard et al's Tiny C Compiler + _LT_TAGVAR(ld_shlibs, $1)=yes + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + ;; + esac + ;; + + netbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' # a.out + else + _LT_TAGVAR(archive_cmds, $1)='$LD -shared -o $lib $libobjs $deplibs $linker_flags' # ELF + fi + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + newsos6) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + *nto* | *qnx*) + ;; + + openbsd* | bitrig*) + if test -f /usr/libexec/ld.so; then + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags $wl-retain-symbols-file,$export_symbols' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' + else + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' + fi + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + os2*) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + shrext_cmds=.dll + _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + _LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + prefix_cmds="$SED"~ + if test EXPORTS = "`$SED 1q $export_symbols`"; then + prefix_cmds="$prefix_cmds -e 1d"; + fi~ + prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~ + cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + _LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def' + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + ;; + + osf3*) + if test yes = "$GCC"; then + _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' + else + _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' + fi + _LT_TAGVAR(archive_cmds_need_lc, $1)='no' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + ;; + + osf4* | osf5*) # as osf3* with the addition of -msym flag + if test yes = "$GCC"; then + _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $pic_flag $libobjs $deplibs $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + else + _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~ + $CC -shared$allow_undefined_flag $wl-input $wl$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~$RM $lib.exp' + + # Both c and cxx compiler support -rpath directly + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir' + fi + _LT_TAGVAR(archive_cmds_need_lc, $1)='no' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + ;; + + solaris*) + _LT_TAGVAR(no_undefined_flag, $1)=' -z defs' + if test yes = "$GCC"; then + wlarc='$wl' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl-z ${wl}text $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -shared $pic_flag $wl-z ${wl}text $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp' + else + case `$CC -V 2>&1` in + *"Compilers 5.0"*) + wlarc='' + _LT_TAGVAR(archive_cmds, $1)='$LD -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $LD -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp' + ;; + *) + wlarc='$wl' + _LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp' + ;; + esac + fi + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + case $host_os in + solaris2.[[0-5]] | solaris2.[[0-5]].*) ;; + *) + # The compiler driver will combine and reorder linker options, + # but understands '-z linker_flag'. GCC discards it without '$wl', + # but is careful enough not to reorder. + # Supported since Solaris 2.6 (maybe 2.5.1?) + if test yes = "$GCC"; then + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract' + else + _LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract' + fi + ;; + esac + _LT_TAGVAR(link_all_deplibs, $1)=yes + ;; + + sunos4*) + if test sequent = "$host_vendor"; then + # Use $CC to link under sequent, because it throws in some extra .o + # files that make .init and .fini sections work. + _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h $soname -o $lib $libobjs $deplibs $compiler_flags' + else + _LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags' + fi + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + sysv4) + case $host_vendor in + sni) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_direct, $1)=yes # is this really true??? + ;; + siemens) + ## LD is ld it makes a PLAMLIB + ## CC just makes a GrossModule. + _LT_TAGVAR(archive_cmds, $1)='$LD -G -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(reload_cmds, $1)='$CC -r -o $output$reload_objs' + _LT_TAGVAR(hardcode_direct, $1)=no + ;; + motorola) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_direct, $1)=no #Motorola manual says yes, but my tests say they lie + ;; + esac + runpath_var='LD_RUN_PATH' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + sysv4.3*) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(export_dynamic_flag_spec, $1)='-Bexport' + ;; + + sysv4*MP*) + if test -d /usr/nec; then + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + runpath_var=LD_RUN_PATH + hardcode_runpath_var=yes + _LT_TAGVAR(ld_shlibs, $1)=yes + fi + ;; + + sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*) + _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text' + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + runpath_var='LD_RUN_PATH' + + if test yes = "$GCC"; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + else + _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + fi + ;; + + sysv5* | sco3.2v5* | sco5v6*) + # Note: We CANNOT use -z defs as we might desire, because we do not + # link with -lc, and that would cause any symbols used from libc to + # always be unresolved, which means just about no library would + # ever link correctly. If we're not using GNU ld we use -z text + # though, which does catch some bad symbols but isn't as heavy-handed + # as -z defs. + _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text' + _LT_TAGVAR(allow_undefined_flag, $1)='$wl-z,nodefs' + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R,$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=':' + _LT_TAGVAR(link_all_deplibs, $1)=yes + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-Bexport' + runpath_var='LD_RUN_PATH' + + if test yes = "$GCC"; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + else + _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + fi + ;; + + uts4*) + _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + + *) + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + + if test sni = "$host_vendor"; then + case $host in + sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*) + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-Blargedynsym' + ;; + esac + fi + fi +]) +AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)]) +test no = "$_LT_TAGVAR(ld_shlibs, $1)" && can_build_shared=no + +_LT_TAGVAR(with_gnu_ld, $1)=$with_gnu_ld + +_LT_DECL([], [libext], [0], [Old archive suffix (normally "a")])dnl +_LT_DECL([], [shrext_cmds], [1], [Shared library suffix (normally ".so")])dnl +_LT_DECL([], [extract_expsyms_cmds], [2], + [The commands to extract the exported symbol list from a shared archive]) + +# +# Do we need to explicitly link libc? +# +case "x$_LT_TAGVAR(archive_cmds_need_lc, $1)" in +x|xyes) + # Assume -lc should be added + _LT_TAGVAR(archive_cmds_need_lc, $1)=yes + + if test yes,yes = "$GCC,$enable_shared"; then + case $_LT_TAGVAR(archive_cmds, $1) in + *'~'*) + # FIXME: we may have to deal with multi-command sequences. + ;; + '$CC '*) + # Test whether the compiler implicitly links with -lc since on some + # systems, -lgcc has to come before -lc. If gcc already passes -lc + # to ld, don't add -lc before -lgcc. + AC_CACHE_CHECK([whether -lc should be explicitly linked in], + [lt_cv_]_LT_TAGVAR(archive_cmds_need_lc, $1), + [$RM conftest* + echo "$lt_simple_compile_test_code" > conftest.$ac_ext + + if AC_TRY_EVAL(ac_compile) 2>conftest.err; then + soname=conftest + lib=conftest + libobjs=conftest.$ac_objext + deplibs= + wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1) + pic_flag=$_LT_TAGVAR(lt_prog_compiler_pic, $1) + compiler_flags=-v + linker_flags=-v + verstring= + output_objdir=. + libname=conftest + lt_save_allow_undefined_flag=$_LT_TAGVAR(allow_undefined_flag, $1) + _LT_TAGVAR(allow_undefined_flag, $1)= + if AC_TRY_EVAL(_LT_TAGVAR(archive_cmds, $1) 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) + then + lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)=no + else + lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)=yes + fi + _LT_TAGVAR(allow_undefined_flag, $1)=$lt_save_allow_undefined_flag + else + cat conftest.err 1>&5 + fi + $RM conftest* + ]) + _LT_TAGVAR(archive_cmds_need_lc, $1)=$lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1) + ;; + esac + fi + ;; +esac + +_LT_TAGDECL([build_libtool_need_lc], [archive_cmds_need_lc], [0], + [Whether or not to add -lc for building shared libraries]) +_LT_TAGDECL([allow_libtool_libs_with_static_runtimes], + [enable_shared_with_static_runtimes], [0], + [Whether or not to disallow shared libs when runtime libs are static]) +_LT_TAGDECL([], [export_dynamic_flag_spec], [1], + [Compiler flag to allow reflexive dlopens]) +_LT_TAGDECL([], [whole_archive_flag_spec], [1], + [Compiler flag to generate shared objects directly from archives]) +_LT_TAGDECL([], [compiler_needs_object], [1], + [Whether the compiler copes with passing no objects directly]) +_LT_TAGDECL([], [old_archive_from_new_cmds], [2], + [Create an old-style archive from a shared archive]) +_LT_TAGDECL([], [old_archive_from_expsyms_cmds], [2], + [Create a temporary old-style archive to link instead of a shared archive]) +_LT_TAGDECL([], [archive_cmds], [2], [Commands used to build a shared archive]) +_LT_TAGDECL([], [archive_expsym_cmds], [2]) +_LT_TAGDECL([], [module_cmds], [2], + [Commands used to build a loadable module if different from building + a shared archive.]) +_LT_TAGDECL([], [module_expsym_cmds], [2]) +_LT_TAGDECL([], [with_gnu_ld], [1], + [Whether we are building with GNU ld or not]) +_LT_TAGDECL([], [allow_undefined_flag], [1], + [Flag that allows shared libraries with undefined symbols to be built]) +_LT_TAGDECL([], [no_undefined_flag], [1], + [Flag that enforces no undefined symbols]) +_LT_TAGDECL([], [hardcode_libdir_flag_spec], [1], + [Flag to hardcode $libdir into a binary during linking. + This must work even if $libdir does not exist]) +_LT_TAGDECL([], [hardcode_libdir_separator], [1], + [Whether we need a single "-rpath" flag with a separated argument]) +_LT_TAGDECL([], [hardcode_direct], [0], + [Set to "yes" if using DIR/libNAME$shared_ext during linking hardcodes + DIR into the resulting binary]) +_LT_TAGDECL([], [hardcode_direct_absolute], [0], + [Set to "yes" if using DIR/libNAME$shared_ext during linking hardcodes + DIR into the resulting binary and the resulting library dependency is + "absolute", i.e impossible to change by setting $shlibpath_var if the + library is relocated]) +_LT_TAGDECL([], [hardcode_minus_L], [0], + [Set to "yes" if using the -LDIR flag during linking hardcodes DIR + into the resulting binary]) +_LT_TAGDECL([], [hardcode_shlibpath_var], [0], + [Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR + into the resulting binary]) +_LT_TAGDECL([], [hardcode_automatic], [0], + [Set to "yes" if building a shared library automatically hardcodes DIR + into the library and all subsequent libraries and executables linked + against it]) +_LT_TAGDECL([], [inherit_rpath], [0], + [Set to yes if linker adds runtime paths of dependent libraries + to runtime path list]) +_LT_TAGDECL([], [link_all_deplibs], [0], + [Whether libtool must link a program against all its dependency libraries]) +_LT_TAGDECL([], [always_export_symbols], [0], + [Set to "yes" if exported symbols are required]) +_LT_TAGDECL([], [export_symbols_cmds], [2], + [The commands to list exported symbols]) +_LT_TAGDECL([], [exclude_expsyms], [1], + [Symbols that should not be listed in the preloaded symbols]) +_LT_TAGDECL([], [include_expsyms], [1], + [Symbols that must always be exported]) +_LT_TAGDECL([], [prelink_cmds], [2], + [Commands necessary for linking programs (against libraries) with templates]) +_LT_TAGDECL([], [postlink_cmds], [2], + [Commands necessary for finishing linking programs]) +_LT_TAGDECL([], [file_list_spec], [1], + [Specify filename containing input files]) +dnl FIXME: Not yet implemented +dnl _LT_TAGDECL([], [thread_safe_flag_spec], [1], +dnl [Compiler flag to generate thread safe objects]) +])# _LT_LINKER_SHLIBS + + +# _LT_LANG_C_CONFIG([TAG]) +# ------------------------ +# Ensure that the configuration variables for a C compiler are suitably +# defined. These variables are subsequently used by _LT_CONFIG to write +# the compiler configuration to 'libtool'. +m4_defun([_LT_LANG_C_CONFIG], +[m4_require([_LT_DECL_EGREP])dnl +lt_save_CC=$CC +AC_LANG_PUSH(C) + +# Source file extension for C test sources. +ac_ext=c + +# Object file extension for compiled C test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# Code to be used in simple compile tests +lt_simple_compile_test_code="int some_variable = 0;" + +# Code to be used in simple link tests +lt_simple_link_test_code='int main(){return(0);}' + +_LT_TAG_COMPILER +# Save the default compiler, since it gets overwritten when the other +# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP. +compiler_DEFAULT=$CC + +# save warnings/boilerplate of simple test code +_LT_COMPILER_BOILERPLATE +_LT_LINKER_BOILERPLATE + +## CAVEAT EMPTOR: +## There is no encapsulation within the following macros, do not change +## the running order or otherwise move them around unless you know exactly +## what you are doing... +if test -n "$compiler"; then + _LT_COMPILER_NO_RTTI($1) + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_SYS_DYNAMIC_LINKER($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + LT_SYS_DLOPEN_SELF + _LT_CMD_STRIPLIB + + # Report what library types will actually be built + AC_MSG_CHECKING([if libtool supports shared libraries]) + AC_MSG_RESULT([$can_build_shared]) + + AC_MSG_CHECKING([whether to build shared libraries]) + test no = "$can_build_shared" && enable_shared=no + + # On AIX, shared libraries and static libraries use the same namespace, and + # are all built from PIC. + case $host_os in + aix3*) + test yes = "$enable_shared" && enable_static=no + if test -n "$RANLIB"; then + archive_cmds="$archive_cmds~\$RANLIB \$lib" + postinstall_cmds='$RANLIB $lib' + fi + ;; + + aix[[4-9]]*) + if test ia64 != "$host_cpu"; then + case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in + yes,aix,yes) ;; # shared object as lib.so file only + yes,svr4,*) ;; # shared object as lib.so archive member only + yes,*) enable_static=no ;; # shared object in lib.a archive as well + esac + fi + ;; + esac + AC_MSG_RESULT([$enable_shared]) + + AC_MSG_CHECKING([whether to build static libraries]) + # Make sure either enable_shared or enable_static is yes. + test yes = "$enable_shared" || enable_static=yes + AC_MSG_RESULT([$enable_static]) + + _LT_CONFIG($1) +fi +AC_LANG_POP +CC=$lt_save_CC +])# _LT_LANG_C_CONFIG + + +# _LT_LANG_CXX_CONFIG([TAG]) +# -------------------------- +# Ensure that the configuration variables for a C++ compiler are suitably +# defined. These variables are subsequently used by _LT_CONFIG to write +# the compiler configuration to 'libtool'. +m4_defun([_LT_LANG_CXX_CONFIG], +[m4_require([_LT_FILEUTILS_DEFAULTS])dnl +m4_require([_LT_DECL_EGREP])dnl +m4_require([_LT_PATH_MANIFEST_TOOL])dnl +if test -n "$CXX" && ( test no != "$CXX" && + ( (test g++ = "$CXX" && `g++ -v >/dev/null 2>&1` ) || + (test g++ != "$CXX"))); then + AC_PROG_CXXCPP +else + _lt_caught_CXX_error=yes +fi + +AC_LANG_PUSH(C++) +_LT_TAGVAR(archive_cmds_need_lc, $1)=no +_LT_TAGVAR(allow_undefined_flag, $1)= +_LT_TAGVAR(always_export_symbols, $1)=no +_LT_TAGVAR(archive_expsym_cmds, $1)= +_LT_TAGVAR(compiler_needs_object, $1)=no +_LT_TAGVAR(export_dynamic_flag_spec, $1)= +_LT_TAGVAR(hardcode_direct, $1)=no +_LT_TAGVAR(hardcode_direct_absolute, $1)=no +_LT_TAGVAR(hardcode_libdir_flag_spec, $1)= +_LT_TAGVAR(hardcode_libdir_separator, $1)= +_LT_TAGVAR(hardcode_minus_L, $1)=no +_LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported +_LT_TAGVAR(hardcode_automatic, $1)=no +_LT_TAGVAR(inherit_rpath, $1)=no +_LT_TAGVAR(module_cmds, $1)= +_LT_TAGVAR(module_expsym_cmds, $1)= +_LT_TAGVAR(link_all_deplibs, $1)=unknown +_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds +_LT_TAGVAR(reload_flag, $1)=$reload_flag +_LT_TAGVAR(reload_cmds, $1)=$reload_cmds +_LT_TAGVAR(no_undefined_flag, $1)= +_LT_TAGVAR(whole_archive_flag_spec, $1)= +_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no + +# Source file extension for C++ test sources. +ac_ext=cpp + +# Object file extension for compiled C++ test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# No sense in running all these tests if we already determined that +# the CXX compiler isn't working. Some variables (like enable_shared) +# are currently assumed to apply to all compilers on this platform, +# and will be corrupted by setting them based on a non-working compiler. +if test yes != "$_lt_caught_CXX_error"; then + # Code to be used in simple compile tests + lt_simple_compile_test_code="int some_variable = 0;" + + # Code to be used in simple link tests + lt_simple_link_test_code='int main(int, char *[[]]) { return(0); }' + + # ltmain only uses $CC for tagged configurations so make sure $CC is set. + _LT_TAG_COMPILER + + # save warnings/boilerplate of simple test code + _LT_COMPILER_BOILERPLATE + _LT_LINKER_BOILERPLATE + + # Allow CC to be a program name with arguments. + lt_save_CC=$CC + lt_save_CFLAGS=$CFLAGS + lt_save_LD=$LD + lt_save_GCC=$GCC + GCC=$GXX + lt_save_with_gnu_ld=$with_gnu_ld + lt_save_path_LD=$lt_cv_path_LD + if test -n "${lt_cv_prog_gnu_ldcxx+set}"; then + lt_cv_prog_gnu_ld=$lt_cv_prog_gnu_ldcxx + else + $as_unset lt_cv_prog_gnu_ld + fi + if test -n "${lt_cv_path_LDCXX+set}"; then + lt_cv_path_LD=$lt_cv_path_LDCXX + else + $as_unset lt_cv_path_LD + fi + test -z "${LDCXX+set}" || LD=$LDCXX + CC=${CXX-"c++"} + CFLAGS=$CXXFLAGS + compiler=$CC + _LT_TAGVAR(compiler, $1)=$CC + _LT_CC_BASENAME([$compiler]) + + if test -n "$compiler"; then + # We don't want -fno-exception when compiling C++ code, so set the + # no_builtin_flag separately + if test yes = "$GXX"; then + _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin' + else + _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)= + fi + + if test yes = "$GXX"; then + # Set up default GNU C++ configuration + + LT_PATH_LD + + # Check if GNU C++ uses GNU ld as the underlying linker, since the + # archiving commands below assume that GNU ld is being used. + if test yes = "$with_gnu_ld"; then + _LT_TAGVAR(archive_cmds, $1)='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic' + + # If archive_cmds runs LD, not CC, wlarc should be empty + # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to + # investigate it a little bit more. (MM) + wlarc='$wl' + + # ancient GNU ld didn't support --whole-archive et. al. + if eval "`$CC -print-prog-name=ld` --help 2>&1" | + $GREP 'no-whole-archive' > /dev/null; then + _LT_TAGVAR(whole_archive_flag_spec, $1)=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive' + else + _LT_TAGVAR(whole_archive_flag_spec, $1)= + fi + else + with_gnu_ld=no + wlarc= + + # A generic and very simple default shared library creation + # command for GNU C++ for the case where it uses the native + # linker, instead of GNU ld. If possible, this setting should + # overridden to take advantage of the native linker features on + # the platform it is being used on. + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib' + fi + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"' + + else + GXX=no + with_gnu_ld=no + wlarc= + fi + + # PORTME: fill in a description of your system's C++ link characteristics + AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries]) + _LT_TAGVAR(ld_shlibs, $1)=yes + case $host_os in + aix3*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + aix[[4-9]]*) + if test ia64 = "$host_cpu"; then + # On IA64, the linker does run time linking by default, so we don't + # have to do anything special. + aix_use_runtimelinking=no + exp_sym_flag='-Bexport' + no_entry_flag= + else + aix_use_runtimelinking=no + + # Test if we are trying to use run time linking or normal + # AIX style linking. If -brtl is somewhere in LDFLAGS, we + # have runtime linking enabled, and use it for executables. + # For shared libraries, we enable/disable runtime linking + # depending on the kind of the shared library created - + # when "with_aix_soname,aix_use_runtimelinking" is: + # "aix,no" lib.a(lib.so.V) shared, rtl:no, for executables + # "aix,yes" lib.so shared, rtl:yes, for executables + # lib.a static archive + # "both,no" lib.so.V(shr.o) shared, rtl:yes + # lib.a(lib.so.V) shared, rtl:no, for executables + # "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables + # lib.a(lib.so.V) shared, rtl:no + # "svr4,*" lib.so.V(shr.o) shared, rtl:yes, for executables + # lib.a static archive + case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*) + for ld_flag in $LDFLAGS; do + case $ld_flag in + *-brtl*) + aix_use_runtimelinking=yes + break + ;; + esac + done + if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then + # With aix-soname=svr4, we create the lib.so.V shared archives only, + # so we don't have lib.a shared libs to link our executables. + # We have to force runtime linking in this case. + aix_use_runtimelinking=yes + LDFLAGS="$LDFLAGS -Wl,-brtl" + fi + ;; + esac + + exp_sym_flag='-bexport' + no_entry_flag='-bnoentry' + fi + + # When large executables or shared objects are built, AIX ld can + # have problems creating the table of contents. If linking a library + # or program results in "error TOC overflow" add -mminimal-toc to + # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not + # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS. + + _LT_TAGVAR(archive_cmds, $1)='' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(hardcode_libdir_separator, $1)=':' + _LT_TAGVAR(link_all_deplibs, $1)=yes + _LT_TAGVAR(file_list_spec, $1)='$wl-f,' + case $with_aix_soname,$aix_use_runtimelinking in + aix,*) ;; # no import file + svr4,* | *,yes) # use import file + # The Import File defines what to hardcode. + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_direct_absolute, $1)=no + ;; + esac + + if test yes = "$GXX"; then + case $host_os in aix4.[[012]]|aix4.[[012]].*) + # We only want to do this on AIX 4.2 and lower, the check + # below for broken collect2 doesn't work under 4.3+ + collect2name=`$CC -print-prog-name=collect2` + if test -f "$collect2name" && + strings "$collect2name" | $GREP resolve_lib_name >/dev/null + then + # We have reworked collect2 + : + else + # We have old collect2 + _LT_TAGVAR(hardcode_direct, $1)=unsupported + # It fails to find uninstalled libraries when the uninstalled + # path is not listed in the libpath. Setting hardcode_minus_L + # to unsupported forces relinking + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)= + fi + esac + shared_flag='-shared' + if test yes = "$aix_use_runtimelinking"; then + shared_flag=$shared_flag' $wl-G' + fi + # Need to ensure runtime linking is disabled for the traditional + # shared library, or the linker may eventually find shared libraries + # /with/ Import File - we do not want to mix them. + shared_flag_aix='-shared' + shared_flag_svr4='-shared $wl-G' + else + # not using gcc + if test ia64 = "$host_cpu"; then + # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release + # chokes on -Wl,-G. The following line is correct: + shared_flag='-G' + else + if test yes = "$aix_use_runtimelinking"; then + shared_flag='$wl-G' + else + shared_flag='$wl-bM:SRE' + fi + shared_flag_aix='$wl-bM:SRE' + shared_flag_svr4='$wl-G' + fi + fi + + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-bexpall' + # It seems that -bexpall does not export symbols beginning with + # underscore (_), so it is better to generate a list of symbols to + # export. + _LT_TAGVAR(always_export_symbols, $1)=yes + if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then + # Warning - without using the other runtime loading flags (-brtl), + # -berok will link without error, but may produce a broken library. + # The "-G" linker flag allows undefined symbols. + _LT_TAGVAR(no_undefined_flag, $1)='-bernotok' + # Determine the default libpath from the value encoded in an empty + # executable. + _LT_SYS_MODULE_PATH_AIX([$1]) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath" + + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag + else + if test ia64 = "$host_cpu"; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $libdir:/usr/lib:/lib' + _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs" + _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols" + else + # Determine the default libpath from the value encoded in an + # empty executable. + _LT_SYS_MODULE_PATH_AIX([$1]) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath" + # Warning - without using the other run time loading flags, + # -berok will link without error, but may produce a broken library. + _LT_TAGVAR(no_undefined_flag, $1)=' $wl-bernotok' + _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-berok' + if test yes = "$with_gnu_ld"; then + # We only use this code for GNU lds that support --whole-archive. + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive' + else + # Exported symbols can be pulled into shared objects from archives + _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience' + fi + _LT_TAGVAR(archive_cmds_need_lc, $1)=yes + _LT_TAGVAR(archive_expsym_cmds, $1)='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d' + # -brtl affects multiple linker settings, -berok does not and is overridden later + compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([[, ]]\\)%-berok\\1%g"`' + if test svr4 != "$with_aix_soname"; then + # This is similar to how AIX traditionally builds its shared + # libraries. Need -bnortl late, we may have -brtl in LDFLAGS. + _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname' + fi + if test aix != "$with_aix_soname"; then + _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp' + else + # used by -dlpreopen to get the symbols + _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$MV $output_objdir/$realname.d/$soname $output_objdir' + fi + _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$RM -r $output_objdir/$realname.d' + fi + fi + ;; + + beos*) + if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + # Joseph Beckenbach says some releases of gcc + # support --undefined. This deserves some investigation. FIXME + _LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + chorus*) + case $cc_basename in + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + ;; + + cygwin* | mingw* | pw32* | cegcc*) + case $GXX,$cc_basename in + ,cl* | no,cl*) + # Native MSVC + # hardcode_libdir_flag_spec is actually meaningless, as there is + # no search path for DLLs. + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' ' + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + _LT_TAGVAR(always_export_symbols, $1)=yes + _LT_TAGVAR(file_list_spec, $1)='@' + # Tell ltmain to make .lib files, not .a files. + libext=lib + # Tell ltmain to make .dll files, not .so files. + shrext_cmds=.dll + # FIXME: Setting linknames here is a bad hack. + _LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames=' + _LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then + cp "$export_symbols" "$output_objdir/$soname.def"; + echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp"; + else + $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp; + fi~ + $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~ + linknames=' + # The linker will not automatically build a static lib if we build a DLL. + # _LT_TAGVAR(old_archive_from_new_cmds, $1)='true' + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + # Don't use ranlib + _LT_TAGVAR(old_postinstall_cmds, $1)='chmod 644 $oldlib' + _LT_TAGVAR(postlink_cmds, $1)='lt_outputfile="@OUTPUT@"~ + lt_tool_outputfile="@TOOL_OUTPUT@"~ + case $lt_outputfile in + *.exe|*.EXE) ;; + *) + lt_outputfile=$lt_outputfile.exe + lt_tool_outputfile=$lt_tool_outputfile.exe + ;; + esac~ + func_to_tool_file "$lt_outputfile"~ + if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then + $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1; + $RM "$lt_outputfile.manifest"; + fi' + ;; + *) + # g++ + # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless, + # as there is no search path for DLLs. + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-all-symbols' + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + _LT_TAGVAR(always_export_symbols, $1)=no + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + + if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + # If the export-symbols file already is a .def file, use it as + # is; otherwise, prepend EXPORTS... + _LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then + cp $export_symbols $output_objdir/$soname.def; + else + echo EXPORTS > $output_objdir/$soname.def; + cat $export_symbols >> $output_objdir/$soname.def; + fi~ + $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + ;; + darwin* | rhapsody*) + _LT_DARWIN_LINKER_FEATURES($1) + ;; + + os2*) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' + _LT_TAGVAR(hardcode_minus_L, $1)=yes + _LT_TAGVAR(allow_undefined_flag, $1)=unsupported + shrext_cmds=.dll + _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + _LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ + $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ + $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ + $ECHO EXPORTS >> $output_objdir/$libname.def~ + prefix_cmds="$SED"~ + if test EXPORTS = "`$SED 1q $export_symbols`"; then + prefix_cmds="$prefix_cmds -e 1d"; + fi~ + prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~ + cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~ + $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ + emximp -o $lib $output_objdir/$libname.def' + _LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def' + _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes + ;; + + dgux*) + case $cc_basename in + ec++*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + ghcx*) + # Green Hills C++ Compiler + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + ;; + + freebsd2.*) + # C++ shared libraries reported to be fairly broken before + # switch to ELF + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + + freebsd-elf*) + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + ;; + + freebsd* | dragonfly*) + # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF + # conventions + _LT_TAGVAR(ld_shlibs, $1)=yes + ;; + + haiku*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(link_all_deplibs, $1)=yes + ;; + + hpux9*) + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH, + # but as the default + # location of the library. + + case $cc_basename in + CC*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + aCC*) + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -b $wl+b $wl$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib' + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP "\-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"' + ;; + *) + if test yes = "$GXX"; then + _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared -nostdlib $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib' + else + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + ;; + + hpux10*|hpux11*) + if test no = "$with_gnu_ld"; then + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + case $host_cpu in + hppa*64*|ia64*) + ;; + *) + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' + ;; + esac + fi + case $host_cpu in + hppa*64*|ia64*) + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + ;; + *) + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH, + # but as the default + # location of the library. + ;; + esac + + case $cc_basename in + CC*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + aCC*) + case $host_cpu in + hppa*64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + ia64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + esac + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP "\-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"' + ;; + *) + if test yes = "$GXX"; then + if test no = "$with_gnu_ld"; then + case $host_cpu in + hppa*64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib -fPIC $wl+h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + ia64*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + ;; + esac + fi + else + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + ;; + + interix[[3-9]]*) + _LT_TAGVAR(hardcode_direct, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' + # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc. + # Instead, shared libraries are loaded at an image base (0x10000000 by + # default) and relocated if they conflict, which is a slow very memory + # consuming and fragmenting process. To avoid this, we pick a random, + # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link + # time. Moving up from 0x10000000 also allows more sbrk(2) space. + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='sed "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib' + ;; + irix5* | irix6*) + case $cc_basename in + CC*) + # SGI C++ + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' + + # Archives containing C++ object files must be created using + # "CC -ar", where "CC" is the IRIX C++ compiler. This is + # necessary to make sure instantiated templates are included + # in the archive. + _LT_TAGVAR(old_archive_cmds, $1)='$CC -ar -WR,-u -o $oldlib $oldobjs' + ;; + *) + if test yes = "$GXX"; then + if test no = "$with_gnu_ld"; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' + else + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` -o $lib' + fi + fi + _LT_TAGVAR(link_all_deplibs, $1)=yes + ;; + esac + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + _LT_TAGVAR(inherit_rpath, $1)=yes + ;; + + linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) + case $cc_basename in + KCC*) + # Kuck and Associates, Inc. (KAI) C++ Compiler + + # KCC will only create a shared library if the output file + # ends with ".so" (or ".sl" for HP-UX), so rename the library + # to its proper name (with version) after linking. + _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib $wl-retain-symbols-file,$export_symbols; mv \$templib $lib' + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; rm -f libconftest$shared_ext; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"' + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic' + + # Archives containing C++ object files must be created using + # "CC -Bstatic", where "CC" is the KAI C++ compiler. + _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs' + ;; + icpc* | ecpc* ) + # Intel C++ + with_gnu_ld=yes + # version 8.0 and above of icpc choke on multiply defined symbols + # if we add $predep_objects and $postdep_objects, however 7.1 and + # earlier do not add the objects themselves. + case `$CC -V 2>&1` in + *"Version 7."*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + ;; + *) # Version 8.0 or newer + tmp_idyn= + case $host_cpu in + ia64*) tmp_idyn=' -i_dynamic';; + esac + _LT_TAGVAR(archive_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + ;; + esac + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic' + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive' + ;; + pgCC* | pgcpp*) + # Portland Group C++ compiler + case `$CC -V` in + *pgCC\ [[1-5]].* | *pgcpp\ [[1-5]].*) + _LT_TAGVAR(prelink_cmds, $1)='tpldir=Template.dir~ + rm -rf $tpldir~ + $CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~ + compile_command="$compile_command `find $tpldir -name \*.o | sort | $NL2SP`"' + _LT_TAGVAR(old_archive_cmds, $1)='tpldir=Template.dir~ + rm -rf $tpldir~ + $CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~ + $AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | sort | $NL2SP`~ + $RANLIB $oldlib' + _LT_TAGVAR(archive_cmds, $1)='tpldir=Template.dir~ + rm -rf $tpldir~ + $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~ + $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='tpldir=Template.dir~ + rm -rf $tpldir~ + $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~ + $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + ;; + *) # Version 6 and above use weak symbols + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' + ;; + esac + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl--rpath $wl$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic' + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + ;; + cxx*) + # Compaq C++ + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib $wl-retain-symbols-file $wl$export_symbols' + + runpath_var=LD_RUN_PATH + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "X$list" | $Xsed' + ;; + xl* | mpixl* | bgxl*) + # IBM XL 8.0 on PPC, with GNU ld + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic' + _LT_TAGVAR(archive_cmds, $1)='$CC -qmkshrobj $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' + if test yes = "$supports_anon_versioning"; then + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~ + cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~ + echo "local: *; };" >> $output_objdir/$libname.ver~ + $CC -qmkshrobj $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib' + fi + ;; + *) + case `$CC -V 2>&1 | sed 5q` in + *Sun\ C*) + # Sun C++ 5.9 + _LT_TAGVAR(no_undefined_flag, $1)=' -zdefs' + _LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file $wl$export_symbols' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' + _LT_TAGVAR(compiler_needs_object, $1)=yes + + # Not sure whether something based on + # $CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 + # would be better. + output_verbose_link_cmd='func_echo_all' + + # Archives containing C++ object files must be created using + # "CC -xar", where "CC" is the Sun C++ compiler. This is + # necessary to make sure instantiated templates are included + # in the archive. + _LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs' + ;; + esac + ;; + esac + ;; + + lynxos*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + + m88k*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + + mvs*) + case $cc_basename in + cxx*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + ;; + + netbsd*) + if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags' + wlarc= + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + fi + # Workaround some broken pre-1.5 toolchains + output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP conftest.$objext | $SED -e "s:-lgcc -lc -lgcc::"' + ;; + + *nto* | *qnx*) + _LT_TAGVAR(ld_shlibs, $1)=yes + ;; + + openbsd* | bitrig*) + if test -f /usr/libexec/ld.so; then + _LT_TAGVAR(hardcode_direct, $1)=yes + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_direct_absolute, $1)=yes + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' + if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`"; then + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file,$export_symbols -o $lib' + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' + _LT_TAGVAR(whole_archive_flag_spec, $1)=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive' + fi + output_verbose_link_cmd=func_echo_all + else + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + + osf3* | osf4* | osf5*) + case $cc_basename in + KCC*) + # Kuck and Associates, Inc. (KAI) C++ Compiler + + # KCC will only create a shared library if the output file + # ends with ".so" (or ".sl" for HP-UX), so rename the library + # to its proper name (with version) after linking. + _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo "$lib" | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib' + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + # Archives containing C++ object files must be created using + # the KAI C++ compiler. + case $host in + osf3*) _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs' ;; + *) _LT_TAGVAR(old_archive_cmds, $1)='$CC -o $oldlib $oldobjs' ;; + esac + ;; + RCC*) + # Rational C++ 2.4.1 + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + cxx*) + case $host in + osf3*) + _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $soname `test -n "$verstring" && func_echo_all "$wl-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + ;; + *) + _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*' + _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done~ + echo "-hidden">> $lib.exp~ + $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname $wl-input $wl$lib.exp `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~ + $RM $lib.exp' + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir' + ;; + esac + + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + # + # There doesn't appear to be a way to prevent this compiler from + # explicitly linking system object files so we need to strip them + # from the output so that they don't get included in the library + # dependencies. + output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld" | $GREP -v "ld:"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"' + ;; + *) + if test yes,no = "$GXX,$with_gnu_ld"; then + _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*' + case $host in + osf3*) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' + ;; + esac + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=: + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"' + + else + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + fi + ;; + esac + ;; + + psos*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + + sunos4*) + case $cc_basename in + CC*) + # Sun C++ 4.x + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + lcc*) + # Lucid + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + ;; + + solaris*) + case $cc_basename in + CC* | sunCC*) + # Sun C++ 4.2, 5.x and Centerline C++ + _LT_TAGVAR(archive_cmds_need_lc,$1)=yes + _LT_TAGVAR(no_undefined_flag, $1)=' -zdefs' + _LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -G$allow_undefined_flag $wl-M $wl$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp' + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + case $host_os in + solaris2.[[0-5]] | solaris2.[[0-5]].*) ;; + *) + # The compiler driver will combine and reorder linker options, + # but understands '-z linker_flag'. + # Supported since Solaris 2.6 (maybe 2.5.1?) + _LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract' + ;; + esac + _LT_TAGVAR(link_all_deplibs, $1)=yes + + output_verbose_link_cmd='func_echo_all' + + # Archives containing C++ object files must be created using + # "CC -xar", where "CC" is the Sun C++ compiler. This is + # necessary to make sure instantiated templates are included + # in the archive. + _LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs' + ;; + gcx*) + # Green Hills C++ Compiler + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib' + + # The C++ compiler must be used to create the archive. + _LT_TAGVAR(old_archive_cmds, $1)='$CC $LDFLAGS -archive -o $oldlib $oldobjs' + ;; + *) + # GNU C++ compiler with Solaris linker + if test yes,no = "$GXX,$with_gnu_ld"; then + _LT_TAGVAR(no_undefined_flag, $1)=' $wl-z ${wl}defs' + if $CC --version | $GREP -v '^2\.7' > /dev/null; then + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -shared $pic_flag -nostdlib $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp' + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"' + else + # g++ 2.7 appears to require '-G' NOT '-shared' on this + # platform. + _LT_TAGVAR(archive_cmds, $1)='$CC -G -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib' + _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ + $CC -G -nostdlib $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp' + + # Commands to make compiler produce verbose output that lists + # what "hidden" libraries, object files and flags are used when + # linking a shared library. + output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"' + fi + + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $wl$libdir' + case $host_os in + solaris2.[[0-5]] | solaris2.[[0-5]].*) ;; + *) + _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract' + ;; + esac + fi + ;; + esac + ;; + + sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*) + _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text' + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + runpath_var='LD_RUN_PATH' + + case $cc_basename in + CC*) + _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + esac + ;; + + sysv5* | sco3.2v5* | sco5v6*) + # Note: We CANNOT use -z defs as we might desire, because we do not + # link with -lc, and that would cause any symbols used from libc to + # always be unresolved, which means just about no library would + # ever link correctly. If we're not using GNU ld we use -z text + # though, which does catch some bad symbols but isn't as heavy-handed + # as -z defs. + _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text' + _LT_TAGVAR(allow_undefined_flag, $1)='$wl-z,nodefs' + _LT_TAGVAR(archive_cmds_need_lc, $1)=no + _LT_TAGVAR(hardcode_shlibpath_var, $1)=no + _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R,$libdir' + _LT_TAGVAR(hardcode_libdir_separator, $1)=':' + _LT_TAGVAR(link_all_deplibs, $1)=yes + _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-Bexport' + runpath_var='LD_RUN_PATH' + + case $cc_basename in + CC*) + _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(old_archive_cmds, $1)='$CC -Tprelink_objects $oldobjs~ + '"$_LT_TAGVAR(old_archive_cmds, $1)" + _LT_TAGVAR(reload_cmds, $1)='$CC -Tprelink_objects $reload_objs~ + '"$_LT_TAGVAR(reload_cmds, $1)" + ;; + *) + _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags' + ;; + esac + ;; + + tandem*) + case $cc_basename in + NCC*) + # NonStop-UX NCC 3.20 + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + ;; + + vxworks*) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + + *) + # FIXME: insert proper C++ library support + _LT_TAGVAR(ld_shlibs, $1)=no + ;; + esac + + AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)]) + test no = "$_LT_TAGVAR(ld_shlibs, $1)" && can_build_shared=no + + _LT_TAGVAR(GCC, $1)=$GXX + _LT_TAGVAR(LD, $1)=$LD + + ## CAVEAT EMPTOR: + ## There is no encapsulation within the following macros, do not change + ## the running order or otherwise move them around unless you know exactly + ## what you are doing... + _LT_SYS_HIDDEN_LIBDEPS($1) + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_SYS_DYNAMIC_LINKER($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + + _LT_CONFIG($1) + fi # test -n "$compiler" + + CC=$lt_save_CC + CFLAGS=$lt_save_CFLAGS + LDCXX=$LD + LD=$lt_save_LD + GCC=$lt_save_GCC + with_gnu_ld=$lt_save_with_gnu_ld + lt_cv_path_LDCXX=$lt_cv_path_LD + lt_cv_path_LD=$lt_save_path_LD + lt_cv_prog_gnu_ldcxx=$lt_cv_prog_gnu_ld + lt_cv_prog_gnu_ld=$lt_save_with_gnu_ld +fi # test yes != "$_lt_caught_CXX_error" + +AC_LANG_POP +])# _LT_LANG_CXX_CONFIG + + +# _LT_FUNC_STRIPNAME_CNF +# ---------------------- +# func_stripname_cnf prefix suffix name +# strip PREFIX and SUFFIX off of NAME. +# PREFIX and SUFFIX must not contain globbing or regex special +# characters, hashes, percent signs, but SUFFIX may contain a leading +# dot (in which case that matches only a dot). +# +# This function is identical to the (non-XSI) version of func_stripname, +# except this one can be used by m4 code that may be executed by configure, +# rather than the libtool script. +m4_defun([_LT_FUNC_STRIPNAME_CNF],[dnl +AC_REQUIRE([_LT_DECL_SED]) +AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH]) +func_stripname_cnf () +{ + case @S|@2 in + .*) func_stripname_result=`$ECHO "@S|@3" | $SED "s%^@S|@1%%; s%\\\\@S|@2\$%%"`;; + *) func_stripname_result=`$ECHO "@S|@3" | $SED "s%^@S|@1%%; s%@S|@2\$%%"`;; + esac +} # func_stripname_cnf +])# _LT_FUNC_STRIPNAME_CNF + + +# _LT_SYS_HIDDEN_LIBDEPS([TAGNAME]) +# --------------------------------- +# Figure out "hidden" library dependencies from verbose +# compiler output when linking a shared library. +# Parse the compiler output and extract the necessary +# objects, libraries and library flags. +m4_defun([_LT_SYS_HIDDEN_LIBDEPS], +[m4_require([_LT_FILEUTILS_DEFAULTS])dnl +AC_REQUIRE([_LT_FUNC_STRIPNAME_CNF])dnl +# Dependencies to place before and after the object being linked: +_LT_TAGVAR(predep_objects, $1)= +_LT_TAGVAR(postdep_objects, $1)= +_LT_TAGVAR(predeps, $1)= +_LT_TAGVAR(postdeps, $1)= +_LT_TAGVAR(compiler_lib_search_path, $1)= + +dnl we can't use the lt_simple_compile_test_code here, +dnl because it contains code intended for an executable, +dnl not a library. It's possible we should let each +dnl tag define a new lt_????_link_test_code variable, +dnl but it's only used here... +m4_if([$1], [], [cat > conftest.$ac_ext <<_LT_EOF +int a; +void foo (void) { a = 0; } +_LT_EOF +], [$1], [CXX], [cat > conftest.$ac_ext <<_LT_EOF +class Foo +{ +public: + Foo (void) { a = 0; } +private: + int a; +}; +_LT_EOF +], [$1], [F77], [cat > conftest.$ac_ext <<_LT_EOF + subroutine foo + implicit none + integer*4 a + a=0 + return + end +_LT_EOF +], [$1], [FC], [cat > conftest.$ac_ext <<_LT_EOF + subroutine foo + implicit none + integer a + a=0 + return + end +_LT_EOF +], [$1], [GCJ], [cat > conftest.$ac_ext <<_LT_EOF +public class foo { + private int a; + public void bar (void) { + a = 0; + } +}; +_LT_EOF +], [$1], [GO], [cat > conftest.$ac_ext <<_LT_EOF +package foo +func foo() { +} +_LT_EOF +]) + +_lt_libdeps_save_CFLAGS=$CFLAGS +case "$CC $CFLAGS " in #( +*\ -flto*\ *) CFLAGS="$CFLAGS -fno-lto" ;; +*\ -fwhopr*\ *) CFLAGS="$CFLAGS -fno-whopr" ;; +*\ -fuse-linker-plugin*\ *) CFLAGS="$CFLAGS -fno-use-linker-plugin" ;; +esac + +dnl Parse the compiler output and extract the necessary +dnl objects, libraries and library flags. +if AC_TRY_EVAL(ac_compile); then + # Parse the compiler output and extract the necessary + # objects, libraries and library flags. + + # Sentinel used to keep track of whether or not we are before + # the conftest object file. + pre_test_object_deps_done=no + + for p in `eval "$output_verbose_link_cmd"`; do + case $prev$p in + + -L* | -R* | -l*) + # Some compilers place space between "-{L,R}" and the path. + # Remove the space. + if test x-L = "$p" || + test x-R = "$p"; then + prev=$p + continue + fi + + # Expand the sysroot to ease extracting the directories later. + if test -z "$prev"; then + case $p in + -L*) func_stripname_cnf '-L' '' "$p"; prev=-L; p=$func_stripname_result ;; + -R*) func_stripname_cnf '-R' '' "$p"; prev=-R; p=$func_stripname_result ;; + -l*) func_stripname_cnf '-l' '' "$p"; prev=-l; p=$func_stripname_result ;; + esac + fi + case $p in + =*) func_stripname_cnf '=' '' "$p"; p=$lt_sysroot$func_stripname_result ;; + esac + if test no = "$pre_test_object_deps_done"; then + case $prev in + -L | -R) + # Internal compiler library paths should come after those + # provided the user. The postdeps already come after the + # user supplied libs so there is no need to process them. + if test -z "$_LT_TAGVAR(compiler_lib_search_path, $1)"; then + _LT_TAGVAR(compiler_lib_search_path, $1)=$prev$p + else + _LT_TAGVAR(compiler_lib_search_path, $1)="${_LT_TAGVAR(compiler_lib_search_path, $1)} $prev$p" + fi + ;; + # The "-l" case would never come before the object being + # linked, so don't bother handling this case. + esac + else + if test -z "$_LT_TAGVAR(postdeps, $1)"; then + _LT_TAGVAR(postdeps, $1)=$prev$p + else + _LT_TAGVAR(postdeps, $1)="${_LT_TAGVAR(postdeps, $1)} $prev$p" + fi + fi + prev= + ;; + + *.lto.$objext) ;; # Ignore GCC LTO objects + *.$objext) + # This assumes that the test object file only shows up + # once in the compiler output. + if test "$p" = "conftest.$objext"; then + pre_test_object_deps_done=yes + continue + fi + + if test no = "$pre_test_object_deps_done"; then + if test -z "$_LT_TAGVAR(predep_objects, $1)"; then + _LT_TAGVAR(predep_objects, $1)=$p + else + _LT_TAGVAR(predep_objects, $1)="$_LT_TAGVAR(predep_objects, $1) $p" + fi + else + if test -z "$_LT_TAGVAR(postdep_objects, $1)"; then + _LT_TAGVAR(postdep_objects, $1)=$p + else + _LT_TAGVAR(postdep_objects, $1)="$_LT_TAGVAR(postdep_objects, $1) $p" + fi + fi + ;; + + *) ;; # Ignore the rest. + + esac + done + + # Clean up. + rm -f a.out a.exe +else + echo "libtool.m4: error: problem compiling $1 test program" +fi + +$RM -f confest.$objext +CFLAGS=$_lt_libdeps_save_CFLAGS + +# PORTME: override above test on systems where it is broken +m4_if([$1], [CXX], +[case $host_os in +interix[[3-9]]*) + # Interix 3.5 installs completely hosed .la files for C++, so rather than + # hack all around it, let's just trust "g++" to DTRT. + _LT_TAGVAR(predep_objects,$1)= + _LT_TAGVAR(postdep_objects,$1)= + _LT_TAGVAR(postdeps,$1)= + ;; +esac +]) + +case " $_LT_TAGVAR(postdeps, $1) " in +*" -lc "*) _LT_TAGVAR(archive_cmds_need_lc, $1)=no ;; +esac + _LT_TAGVAR(compiler_lib_search_dirs, $1)= +if test -n "${_LT_TAGVAR(compiler_lib_search_path, $1)}"; then + _LT_TAGVAR(compiler_lib_search_dirs, $1)=`echo " ${_LT_TAGVAR(compiler_lib_search_path, $1)}" | $SED -e 's! -L! !g' -e 's!^ !!'` +fi +_LT_TAGDECL([], [compiler_lib_search_dirs], [1], + [The directories searched by this compiler when creating a shared library]) +_LT_TAGDECL([], [predep_objects], [1], + [Dependencies to place before and after the objects being linked to + create a shared library]) +_LT_TAGDECL([], [postdep_objects], [1]) +_LT_TAGDECL([], [predeps], [1]) +_LT_TAGDECL([], [postdeps], [1]) +_LT_TAGDECL([], [compiler_lib_search_path], [1], + [The library search path used internally by the compiler when linking + a shared library]) +])# _LT_SYS_HIDDEN_LIBDEPS + + +# _LT_LANG_F77_CONFIG([TAG]) +# -------------------------- +# Ensure that the configuration variables for a Fortran 77 compiler are +# suitably defined. These variables are subsequently used by _LT_CONFIG +# to write the compiler configuration to 'libtool'. +m4_defun([_LT_LANG_F77_CONFIG], +[AC_LANG_PUSH(Fortran 77) +if test -z "$F77" || test no = "$F77"; then + _lt_disable_F77=yes +fi + +_LT_TAGVAR(archive_cmds_need_lc, $1)=no +_LT_TAGVAR(allow_undefined_flag, $1)= +_LT_TAGVAR(always_export_symbols, $1)=no +_LT_TAGVAR(archive_expsym_cmds, $1)= +_LT_TAGVAR(export_dynamic_flag_spec, $1)= +_LT_TAGVAR(hardcode_direct, $1)=no +_LT_TAGVAR(hardcode_direct_absolute, $1)=no +_LT_TAGVAR(hardcode_libdir_flag_spec, $1)= +_LT_TAGVAR(hardcode_libdir_separator, $1)= +_LT_TAGVAR(hardcode_minus_L, $1)=no +_LT_TAGVAR(hardcode_automatic, $1)=no +_LT_TAGVAR(inherit_rpath, $1)=no +_LT_TAGVAR(module_cmds, $1)= +_LT_TAGVAR(module_expsym_cmds, $1)= +_LT_TAGVAR(link_all_deplibs, $1)=unknown +_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds +_LT_TAGVAR(reload_flag, $1)=$reload_flag +_LT_TAGVAR(reload_cmds, $1)=$reload_cmds +_LT_TAGVAR(no_undefined_flag, $1)= +_LT_TAGVAR(whole_archive_flag_spec, $1)= +_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no + +# Source file extension for f77 test sources. +ac_ext=f + +# Object file extension for compiled f77 test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# No sense in running all these tests if we already determined that +# the F77 compiler isn't working. Some variables (like enable_shared) +# are currently assumed to apply to all compilers on this platform, +# and will be corrupted by setting them based on a non-working compiler. +if test yes != "$_lt_disable_F77"; then + # Code to be used in simple compile tests + lt_simple_compile_test_code="\ + subroutine t + return + end +" + + # Code to be used in simple link tests + lt_simple_link_test_code="\ + program t + end +" + + # ltmain only uses $CC for tagged configurations so make sure $CC is set. + _LT_TAG_COMPILER + + # save warnings/boilerplate of simple test code + _LT_COMPILER_BOILERPLATE + _LT_LINKER_BOILERPLATE + + # Allow CC to be a program name with arguments. + lt_save_CC=$CC + lt_save_GCC=$GCC + lt_save_CFLAGS=$CFLAGS + CC=${F77-"f77"} + CFLAGS=$FFLAGS + compiler=$CC + _LT_TAGVAR(compiler, $1)=$CC + _LT_CC_BASENAME([$compiler]) + GCC=$G77 + if test -n "$compiler"; then + AC_MSG_CHECKING([if libtool supports shared libraries]) + AC_MSG_RESULT([$can_build_shared]) + + AC_MSG_CHECKING([whether to build shared libraries]) + test no = "$can_build_shared" && enable_shared=no + + # On AIX, shared libraries and static libraries use the same namespace, and + # are all built from PIC. + case $host_os in + aix3*) + test yes = "$enable_shared" && enable_static=no + if test -n "$RANLIB"; then + archive_cmds="$archive_cmds~\$RANLIB \$lib" + postinstall_cmds='$RANLIB $lib' + fi + ;; + aix[[4-9]]*) + if test ia64 != "$host_cpu"; then + case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in + yes,aix,yes) ;; # shared object as lib.so file only + yes,svr4,*) ;; # shared object as lib.so archive member only + yes,*) enable_static=no ;; # shared object in lib.a archive as well + esac + fi + ;; + esac + AC_MSG_RESULT([$enable_shared]) + + AC_MSG_CHECKING([whether to build static libraries]) + # Make sure either enable_shared or enable_static is yes. + test yes = "$enable_shared" || enable_static=yes + AC_MSG_RESULT([$enable_static]) + + _LT_TAGVAR(GCC, $1)=$G77 + _LT_TAGVAR(LD, $1)=$LD + + ## CAVEAT EMPTOR: + ## There is no encapsulation within the following macros, do not change + ## the running order or otherwise move them around unless you know exactly + ## what you are doing... + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_SYS_DYNAMIC_LINKER($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + + _LT_CONFIG($1) + fi # test -n "$compiler" + + GCC=$lt_save_GCC + CC=$lt_save_CC + CFLAGS=$lt_save_CFLAGS +fi # test yes != "$_lt_disable_F77" + +AC_LANG_POP +])# _LT_LANG_F77_CONFIG + + +# _LT_LANG_FC_CONFIG([TAG]) +# ------------------------- +# Ensure that the configuration variables for a Fortran compiler are +# suitably defined. These variables are subsequently used by _LT_CONFIG +# to write the compiler configuration to 'libtool'. +m4_defun([_LT_LANG_FC_CONFIG], +[AC_LANG_PUSH(Fortran) + +if test -z "$FC" || test no = "$FC"; then + _lt_disable_FC=yes +fi + +_LT_TAGVAR(archive_cmds_need_lc, $1)=no +_LT_TAGVAR(allow_undefined_flag, $1)= +_LT_TAGVAR(always_export_symbols, $1)=no +_LT_TAGVAR(archive_expsym_cmds, $1)= +_LT_TAGVAR(export_dynamic_flag_spec, $1)= +_LT_TAGVAR(hardcode_direct, $1)=no +_LT_TAGVAR(hardcode_direct_absolute, $1)=no +_LT_TAGVAR(hardcode_libdir_flag_spec, $1)= +_LT_TAGVAR(hardcode_libdir_separator, $1)= +_LT_TAGVAR(hardcode_minus_L, $1)=no +_LT_TAGVAR(hardcode_automatic, $1)=no +_LT_TAGVAR(inherit_rpath, $1)=no +_LT_TAGVAR(module_cmds, $1)= +_LT_TAGVAR(module_expsym_cmds, $1)= +_LT_TAGVAR(link_all_deplibs, $1)=unknown +_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds +_LT_TAGVAR(reload_flag, $1)=$reload_flag +_LT_TAGVAR(reload_cmds, $1)=$reload_cmds +_LT_TAGVAR(no_undefined_flag, $1)= +_LT_TAGVAR(whole_archive_flag_spec, $1)= +_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no + +# Source file extension for fc test sources. +ac_ext=${ac_fc_srcext-f} + +# Object file extension for compiled fc test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# No sense in running all these tests if we already determined that +# the FC compiler isn't working. Some variables (like enable_shared) +# are currently assumed to apply to all compilers on this platform, +# and will be corrupted by setting them based on a non-working compiler. +if test yes != "$_lt_disable_FC"; then + # Code to be used in simple compile tests + lt_simple_compile_test_code="\ + subroutine t + return + end +" + + # Code to be used in simple link tests + lt_simple_link_test_code="\ + program t + end +" + + # ltmain only uses $CC for tagged configurations so make sure $CC is set. + _LT_TAG_COMPILER + + # save warnings/boilerplate of simple test code + _LT_COMPILER_BOILERPLATE + _LT_LINKER_BOILERPLATE + + # Allow CC to be a program name with arguments. + lt_save_CC=$CC + lt_save_GCC=$GCC + lt_save_CFLAGS=$CFLAGS + CC=${FC-"f95"} + CFLAGS=$FCFLAGS + compiler=$CC + GCC=$ac_cv_fc_compiler_gnu + + _LT_TAGVAR(compiler, $1)=$CC + _LT_CC_BASENAME([$compiler]) + + if test -n "$compiler"; then + AC_MSG_CHECKING([if libtool supports shared libraries]) + AC_MSG_RESULT([$can_build_shared]) + + AC_MSG_CHECKING([whether to build shared libraries]) + test no = "$can_build_shared" && enable_shared=no + + # On AIX, shared libraries and static libraries use the same namespace, and + # are all built from PIC. + case $host_os in + aix3*) + test yes = "$enable_shared" && enable_static=no + if test -n "$RANLIB"; then + archive_cmds="$archive_cmds~\$RANLIB \$lib" + postinstall_cmds='$RANLIB $lib' + fi + ;; + aix[[4-9]]*) + if test ia64 != "$host_cpu"; then + case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in + yes,aix,yes) ;; # shared object as lib.so file only + yes,svr4,*) ;; # shared object as lib.so archive member only + yes,*) enable_static=no ;; # shared object in lib.a archive as well + esac + fi + ;; + esac + AC_MSG_RESULT([$enable_shared]) + + AC_MSG_CHECKING([whether to build static libraries]) + # Make sure either enable_shared or enable_static is yes. + test yes = "$enable_shared" || enable_static=yes + AC_MSG_RESULT([$enable_static]) + + _LT_TAGVAR(GCC, $1)=$ac_cv_fc_compiler_gnu + _LT_TAGVAR(LD, $1)=$LD + + ## CAVEAT EMPTOR: + ## There is no encapsulation within the following macros, do not change + ## the running order or otherwise move them around unless you know exactly + ## what you are doing... + _LT_SYS_HIDDEN_LIBDEPS($1) + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_SYS_DYNAMIC_LINKER($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + + _LT_CONFIG($1) + fi # test -n "$compiler" + + GCC=$lt_save_GCC + CC=$lt_save_CC + CFLAGS=$lt_save_CFLAGS +fi # test yes != "$_lt_disable_FC" + +AC_LANG_POP +])# _LT_LANG_FC_CONFIG + + +# _LT_LANG_GCJ_CONFIG([TAG]) +# -------------------------- +# Ensure that the configuration variables for the GNU Java Compiler compiler +# are suitably defined. These variables are subsequently used by _LT_CONFIG +# to write the compiler configuration to 'libtool'. +m4_defun([_LT_LANG_GCJ_CONFIG], +[AC_REQUIRE([LT_PROG_GCJ])dnl +AC_LANG_SAVE + +# Source file extension for Java test sources. +ac_ext=java + +# Object file extension for compiled Java test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# Code to be used in simple compile tests +lt_simple_compile_test_code="class foo {}" + +# Code to be used in simple link tests +lt_simple_link_test_code='public class conftest { public static void main(String[[]] argv) {}; }' + +# ltmain only uses $CC for tagged configurations so make sure $CC is set. +_LT_TAG_COMPILER + +# save warnings/boilerplate of simple test code +_LT_COMPILER_BOILERPLATE +_LT_LINKER_BOILERPLATE + +# Allow CC to be a program name with arguments. +lt_save_CC=$CC +lt_save_CFLAGS=$CFLAGS +lt_save_GCC=$GCC +GCC=yes +CC=${GCJ-"gcj"} +CFLAGS=$GCJFLAGS +compiler=$CC +_LT_TAGVAR(compiler, $1)=$CC +_LT_TAGVAR(LD, $1)=$LD +_LT_CC_BASENAME([$compiler]) + +# GCJ did not exist at the time GCC didn't implicitly link libc in. +_LT_TAGVAR(archive_cmds_need_lc, $1)=no + +_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds +_LT_TAGVAR(reload_flag, $1)=$reload_flag +_LT_TAGVAR(reload_cmds, $1)=$reload_cmds + +## CAVEAT EMPTOR: +## There is no encapsulation within the following macros, do not change +## the running order or otherwise move them around unless you know exactly +## what you are doing... +if test -n "$compiler"; then + _LT_COMPILER_NO_RTTI($1) + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + + _LT_CONFIG($1) +fi + +AC_LANG_RESTORE + +GCC=$lt_save_GCC +CC=$lt_save_CC +CFLAGS=$lt_save_CFLAGS +])# _LT_LANG_GCJ_CONFIG + + +# _LT_LANG_GO_CONFIG([TAG]) +# -------------------------- +# Ensure that the configuration variables for the GNU Go compiler +# are suitably defined. These variables are subsequently used by _LT_CONFIG +# to write the compiler configuration to 'libtool'. +m4_defun([_LT_LANG_GO_CONFIG], +[AC_REQUIRE([LT_PROG_GO])dnl +AC_LANG_SAVE + +# Source file extension for Go test sources. +ac_ext=go + +# Object file extension for compiled Go test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# Code to be used in simple compile tests +lt_simple_compile_test_code="package main; func main() { }" + +# Code to be used in simple link tests +lt_simple_link_test_code='package main; func main() { }' + +# ltmain only uses $CC for tagged configurations so make sure $CC is set. +_LT_TAG_COMPILER + +# save warnings/boilerplate of simple test code +_LT_COMPILER_BOILERPLATE +_LT_LINKER_BOILERPLATE + +# Allow CC to be a program name with arguments. +lt_save_CC=$CC +lt_save_CFLAGS=$CFLAGS +lt_save_GCC=$GCC +GCC=yes +CC=${GOC-"gccgo"} +CFLAGS=$GOFLAGS +compiler=$CC +_LT_TAGVAR(compiler, $1)=$CC +_LT_TAGVAR(LD, $1)=$LD +_LT_CC_BASENAME([$compiler]) + +# Go did not exist at the time GCC didn't implicitly link libc in. +_LT_TAGVAR(archive_cmds_need_lc, $1)=no + +_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds +_LT_TAGVAR(reload_flag, $1)=$reload_flag +_LT_TAGVAR(reload_cmds, $1)=$reload_cmds + +## CAVEAT EMPTOR: +## There is no encapsulation within the following macros, do not change +## the running order or otherwise move them around unless you know exactly +## what you are doing... +if test -n "$compiler"; then + _LT_COMPILER_NO_RTTI($1) + _LT_COMPILER_PIC($1) + _LT_COMPILER_C_O($1) + _LT_COMPILER_FILE_LOCKS($1) + _LT_LINKER_SHLIBS($1) + _LT_LINKER_HARDCODE_LIBPATH($1) + + _LT_CONFIG($1) +fi + +AC_LANG_RESTORE + +GCC=$lt_save_GCC +CC=$lt_save_CC +CFLAGS=$lt_save_CFLAGS +])# _LT_LANG_GO_CONFIG + + +# _LT_LANG_RC_CONFIG([TAG]) +# ------------------------- +# Ensure that the configuration variables for the Windows resource compiler +# are suitably defined. These variables are subsequently used by _LT_CONFIG +# to write the compiler configuration to 'libtool'. +m4_defun([_LT_LANG_RC_CONFIG], +[AC_REQUIRE([LT_PROG_RC])dnl +AC_LANG_SAVE + +# Source file extension for RC test sources. +ac_ext=rc + +# Object file extension for compiled RC test sources. +objext=o +_LT_TAGVAR(objext, $1)=$objext + +# Code to be used in simple compile tests +lt_simple_compile_test_code='sample MENU { MENUITEM "&Soup", 100, CHECKED }' + +# Code to be used in simple link tests +lt_simple_link_test_code=$lt_simple_compile_test_code + +# ltmain only uses $CC for tagged configurations so make sure $CC is set. +_LT_TAG_COMPILER + +# save warnings/boilerplate of simple test code +_LT_COMPILER_BOILERPLATE +_LT_LINKER_BOILERPLATE + +# Allow CC to be a program name with arguments. +lt_save_CC=$CC +lt_save_CFLAGS=$CFLAGS +lt_save_GCC=$GCC +GCC= +CC=${RC-"windres"} +CFLAGS= +compiler=$CC +_LT_TAGVAR(compiler, $1)=$CC +_LT_CC_BASENAME([$compiler]) +_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes + +if test -n "$compiler"; then + : + _LT_CONFIG($1) +fi + +GCC=$lt_save_GCC +AC_LANG_RESTORE +CC=$lt_save_CC +CFLAGS=$lt_save_CFLAGS +])# _LT_LANG_RC_CONFIG + + +# LT_PROG_GCJ +# ----------- +AC_DEFUN([LT_PROG_GCJ], +[m4_ifdef([AC_PROG_GCJ], [AC_PROG_GCJ], + [m4_ifdef([A][M_PROG_GCJ], [A][M_PROG_GCJ], + [AC_CHECK_TOOL(GCJ, gcj,) + test set = "${GCJFLAGS+set}" || GCJFLAGS="-g -O2" + AC_SUBST(GCJFLAGS)])])[]dnl +]) + +# Old name: +AU_ALIAS([LT_AC_PROG_GCJ], [LT_PROG_GCJ]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([LT_AC_PROG_GCJ], []) + + +# LT_PROG_GO +# ---------- +AC_DEFUN([LT_PROG_GO], +[AC_CHECK_TOOL(GOC, gccgo,) +]) + + +# LT_PROG_RC +# ---------- +AC_DEFUN([LT_PROG_RC], +[AC_CHECK_TOOL(RC, windres,) +]) + +# Old name: +AU_ALIAS([LT_AC_PROG_RC], [LT_PROG_RC]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([LT_AC_PROG_RC], []) + + +# _LT_DECL_EGREP +# -------------- +# If we don't have a new enough Autoconf to choose the best grep +# available, choose the one first in the user's PATH. +m4_defun([_LT_DECL_EGREP], +[AC_REQUIRE([AC_PROG_EGREP])dnl +AC_REQUIRE([AC_PROG_FGREP])dnl +test -z "$GREP" && GREP=grep +_LT_DECL([], [GREP], [1], [A grep program that handles long lines]) +_LT_DECL([], [EGREP], [1], [An ERE matcher]) +_LT_DECL([], [FGREP], [1], [A literal string matcher]) +dnl Non-bleeding-edge autoconf doesn't subst GREP, so do it here too +AC_SUBST([GREP]) +]) + + +# _LT_DECL_OBJDUMP +# -------------- +# If we don't have a new enough Autoconf to choose the best objdump +# available, choose the one first in the user's PATH. +m4_defun([_LT_DECL_OBJDUMP], +[AC_CHECK_TOOL(OBJDUMP, objdump, false) +test -z "$OBJDUMP" && OBJDUMP=objdump +_LT_DECL([], [OBJDUMP], [1], [An object symbol dumper]) +AC_SUBST([OBJDUMP]) +]) + +# _LT_DECL_DLLTOOL +# ---------------- +# Ensure DLLTOOL variable is set. +m4_defun([_LT_DECL_DLLTOOL], +[AC_CHECK_TOOL(DLLTOOL, dlltool, false) +test -z "$DLLTOOL" && DLLTOOL=dlltool +_LT_DECL([], [DLLTOOL], [1], [DLL creation program]) +AC_SUBST([DLLTOOL]) +]) + +# _LT_DECL_SED +# ------------ +# Check for a fully-functional sed program, that truncates +# as few characters as possible. Prefer GNU sed if found. +m4_defun([_LT_DECL_SED], +[AC_PROG_SED +test -z "$SED" && SED=sed +Xsed="$SED -e 1s/^X//" +_LT_DECL([], [SED], [1], [A sed program that does not truncate output]) +_LT_DECL([], [Xsed], ["\$SED -e 1s/^X//"], + [Sed that helps us avoid accidentally triggering echo(1) options like -n]) +])# _LT_DECL_SED + +m4_ifndef([AC_PROG_SED], [ +############################################################ +# NOTE: This macro has been submitted for inclusion into # +# GNU Autoconf as AC_PROG_SED. When it is available in # +# a released version of Autoconf we should remove this # +# macro and use it instead. # +############################################################ + +m4_defun([AC_PROG_SED], +[AC_MSG_CHECKING([for a sed that does not truncate output]) +AC_CACHE_VAL(lt_cv_path_SED, +[# Loop through the user's path and test for sed and gsed. +# Then use that list of sed's as ones to test for truncation. +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for lt_ac_prog in sed gsed; do + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$lt_ac_prog$ac_exec_ext"; then + lt_ac_sed_list="$lt_ac_sed_list $as_dir/$lt_ac_prog$ac_exec_ext" + fi + done + done +done +IFS=$as_save_IFS +lt_ac_max=0 +lt_ac_count=0 +# Add /usr/xpg4/bin/sed as it is typically found on Solaris +# along with /bin/sed that truncates output. +for lt_ac_sed in $lt_ac_sed_list /usr/xpg4/bin/sed; do + test ! -f "$lt_ac_sed" && continue + cat /dev/null > conftest.in + lt_ac_count=0 + echo $ECHO_N "0123456789$ECHO_C" >conftest.in + # Check for GNU sed and select it if it is found. + if "$lt_ac_sed" --version 2>&1 < /dev/null | grep 'GNU' > /dev/null; then + lt_cv_path_SED=$lt_ac_sed + break + fi + while true; do + cat conftest.in conftest.in >conftest.tmp + mv conftest.tmp conftest.in + cp conftest.in conftest.nl + echo >>conftest.nl + $lt_ac_sed -e 's/a$//' < conftest.nl >conftest.out || break + cmp -s conftest.out conftest.nl || break + # 10000 chars as input seems more than enough + test 10 -lt "$lt_ac_count" && break + lt_ac_count=`expr $lt_ac_count + 1` + if test "$lt_ac_count" -gt "$lt_ac_max"; then + lt_ac_max=$lt_ac_count + lt_cv_path_SED=$lt_ac_sed + fi + done +done +]) +SED=$lt_cv_path_SED +AC_SUBST([SED]) +AC_MSG_RESULT([$SED]) +])#AC_PROG_SED +])#m4_ifndef + +# Old name: +AU_ALIAS([LT_AC_PROG_SED], [AC_PROG_SED]) +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([LT_AC_PROG_SED], []) + + +# _LT_CHECK_SHELL_FEATURES +# ------------------------ +# Find out whether the shell is Bourne or XSI compatible, +# or has some other useful features. +m4_defun([_LT_CHECK_SHELL_FEATURES], +[if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then + lt_unset=unset +else + lt_unset=false +fi +_LT_DECL([], [lt_unset], [0], [whether the shell understands "unset"])dnl + +# test EBCDIC or ASCII +case `echo X|tr X '\101'` in + A) # ASCII based system + # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr + lt_SP2NL='tr \040 \012' + lt_NL2SP='tr \015\012 \040\040' + ;; + *) # EBCDIC based system + lt_SP2NL='tr \100 \n' + lt_NL2SP='tr \r\n \100\100' + ;; +esac +_LT_DECL([SP2NL], [lt_SP2NL], [1], [turn spaces into newlines])dnl +_LT_DECL([NL2SP], [lt_NL2SP], [1], [turn newlines into spaces])dnl +])# _LT_CHECK_SHELL_FEATURES + + +# _LT_PATH_CONVERSION_FUNCTIONS +# ----------------------------- +# Determine what file name conversion functions should be used by +# func_to_host_file (and, implicitly, by func_to_host_path). These are needed +# for certain cross-compile configurations and native mingw. +m4_defun([_LT_PATH_CONVERSION_FUNCTIONS], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +AC_REQUIRE([AC_CANONICAL_BUILD])dnl +AC_MSG_CHECKING([how to convert $build file names to $host format]) +AC_CACHE_VAL(lt_cv_to_host_file_cmd, +[case $host in + *-*-mingw* ) + case $build in + *-*-mingw* ) # actually msys + lt_cv_to_host_file_cmd=func_convert_file_msys_to_w32 + ;; + *-*-cygwin* ) + lt_cv_to_host_file_cmd=func_convert_file_cygwin_to_w32 + ;; + * ) # otherwise, assume *nix + lt_cv_to_host_file_cmd=func_convert_file_nix_to_w32 + ;; + esac + ;; + *-*-cygwin* ) + case $build in + *-*-mingw* ) # actually msys + lt_cv_to_host_file_cmd=func_convert_file_msys_to_cygwin + ;; + *-*-cygwin* ) + lt_cv_to_host_file_cmd=func_convert_file_noop + ;; + * ) # otherwise, assume *nix + lt_cv_to_host_file_cmd=func_convert_file_nix_to_cygwin + ;; + esac + ;; + * ) # unhandled hosts (and "normal" native builds) + lt_cv_to_host_file_cmd=func_convert_file_noop + ;; +esac +]) +to_host_file_cmd=$lt_cv_to_host_file_cmd +AC_MSG_RESULT([$lt_cv_to_host_file_cmd]) +_LT_DECL([to_host_file_cmd], [lt_cv_to_host_file_cmd], + [0], [convert $build file names to $host format])dnl + +AC_MSG_CHECKING([how to convert $build file names to toolchain format]) +AC_CACHE_VAL(lt_cv_to_tool_file_cmd, +[#assume ordinary cross tools, or native build. +lt_cv_to_tool_file_cmd=func_convert_file_noop +case $host in + *-*-mingw* ) + case $build in + *-*-mingw* ) # actually msys + lt_cv_to_tool_file_cmd=func_convert_file_msys_to_w32 + ;; + esac + ;; +esac +]) +to_tool_file_cmd=$lt_cv_to_tool_file_cmd +AC_MSG_RESULT([$lt_cv_to_tool_file_cmd]) +_LT_DECL([to_tool_file_cmd], [lt_cv_to_tool_file_cmd], + [0], [convert $build files to toolchain format])dnl +])# _LT_PATH_CONVERSION_FUNCTIONS diff --git a/m4/ltoptions.m4 b/m4/ltoptions.m4 new file mode 100644 index 0000000..94b0829 --- /dev/null +++ b/m4/ltoptions.m4 @@ -0,0 +1,437 @@ +# Helper functions for option handling. -*- Autoconf -*- +# +# Copyright (C) 2004-2005, 2007-2009, 2011-2015 Free Software +# Foundation, Inc. +# Written by Gary V. Vaughan, 2004 +# +# This file is free software; the Free Software Foundation gives +# unlimited permission to copy and/or distribute it, with or without +# modifications, as long as this notice is preserved. + +# serial 8 ltoptions.m4 + +# This is to help aclocal find these macros, as it can't see m4_define. +AC_DEFUN([LTOPTIONS_VERSION], [m4_if([1])]) + + +# _LT_MANGLE_OPTION(MACRO-NAME, OPTION-NAME) +# ------------------------------------------ +m4_define([_LT_MANGLE_OPTION], +[[_LT_OPTION_]m4_bpatsubst($1__$2, [[^a-zA-Z0-9_]], [_])]) + + +# _LT_SET_OPTION(MACRO-NAME, OPTION-NAME) +# --------------------------------------- +# Set option OPTION-NAME for macro MACRO-NAME, and if there is a +# matching handler defined, dispatch to it. Other OPTION-NAMEs are +# saved as a flag. +m4_define([_LT_SET_OPTION], +[m4_define(_LT_MANGLE_OPTION([$1], [$2]))dnl +m4_ifdef(_LT_MANGLE_DEFUN([$1], [$2]), + _LT_MANGLE_DEFUN([$1], [$2]), + [m4_warning([Unknown $1 option '$2'])])[]dnl +]) + + +# _LT_IF_OPTION(MACRO-NAME, OPTION-NAME, IF-SET, [IF-NOT-SET]) +# ------------------------------------------------------------ +# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise. +m4_define([_LT_IF_OPTION], +[m4_ifdef(_LT_MANGLE_OPTION([$1], [$2]), [$3], [$4])]) + + +# _LT_UNLESS_OPTIONS(MACRO-NAME, OPTION-LIST, IF-NOT-SET) +# ------------------------------------------------------- +# Execute IF-NOT-SET unless all options in OPTION-LIST for MACRO-NAME +# are set. +m4_define([_LT_UNLESS_OPTIONS], +[m4_foreach([_LT_Option], m4_split(m4_normalize([$2])), + [m4_ifdef(_LT_MANGLE_OPTION([$1], _LT_Option), + [m4_define([$0_found])])])[]dnl +m4_ifdef([$0_found], [m4_undefine([$0_found])], [$3 +])[]dnl +]) + + +# _LT_SET_OPTIONS(MACRO-NAME, OPTION-LIST) +# ---------------------------------------- +# OPTION-LIST is a space-separated list of Libtool options associated +# with MACRO-NAME. If any OPTION has a matching handler declared with +# LT_OPTION_DEFINE, dispatch to that macro; otherwise complain about +# the unknown option and exit. +m4_defun([_LT_SET_OPTIONS], +[# Set options +m4_foreach([_LT_Option], m4_split(m4_normalize([$2])), + [_LT_SET_OPTION([$1], _LT_Option)]) + +m4_if([$1],[LT_INIT],[ + dnl + dnl Simply set some default values (i.e off) if boolean options were not + dnl specified: + _LT_UNLESS_OPTIONS([LT_INIT], [dlopen], [enable_dlopen=no + ]) + _LT_UNLESS_OPTIONS([LT_INIT], [win32-dll], [enable_win32_dll=no + ]) + dnl + dnl If no reference was made to various pairs of opposing options, then + dnl we run the default mode handler for the pair. For example, if neither + dnl 'shared' nor 'disable-shared' was passed, we enable building of shared + dnl archives by default: + _LT_UNLESS_OPTIONS([LT_INIT], [shared disable-shared], [_LT_ENABLE_SHARED]) + _LT_UNLESS_OPTIONS([LT_INIT], [static disable-static], [_LT_ENABLE_STATIC]) + _LT_UNLESS_OPTIONS([LT_INIT], [pic-only no-pic], [_LT_WITH_PIC]) + _LT_UNLESS_OPTIONS([LT_INIT], [fast-install disable-fast-install], + [_LT_ENABLE_FAST_INSTALL]) + _LT_UNLESS_OPTIONS([LT_INIT], [aix-soname=aix aix-soname=both aix-soname=svr4], + [_LT_WITH_AIX_SONAME([aix])]) + ]) +])# _LT_SET_OPTIONS + + +## --------------------------------- ## +## Macros to handle LT_INIT options. ## +## --------------------------------- ## + +# _LT_MANGLE_DEFUN(MACRO-NAME, OPTION-NAME) +# ----------------------------------------- +m4_define([_LT_MANGLE_DEFUN], +[[_LT_OPTION_DEFUN_]m4_bpatsubst(m4_toupper([$1__$2]), [[^A-Z0-9_]], [_])]) + + +# LT_OPTION_DEFINE(MACRO-NAME, OPTION-NAME, CODE) +# ----------------------------------------------- +m4_define([LT_OPTION_DEFINE], +[m4_define(_LT_MANGLE_DEFUN([$1], [$2]), [$3])[]dnl +])# LT_OPTION_DEFINE + + +# dlopen +# ------ +LT_OPTION_DEFINE([LT_INIT], [dlopen], [enable_dlopen=yes +]) + +AU_DEFUN([AC_LIBTOOL_DLOPEN], +[_LT_SET_OPTION([LT_INIT], [dlopen]) +AC_DIAGNOSE([obsolete], +[$0: Remove this warning and the call to _LT_SET_OPTION when you +put the 'dlopen' option into LT_INIT's first parameter.]) +]) + +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_DLOPEN], []) + + +# win32-dll +# --------- +# Declare package support for building win32 dll's. +LT_OPTION_DEFINE([LT_INIT], [win32-dll], +[enable_win32_dll=yes + +case $host in +*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-cegcc*) + AC_CHECK_TOOL(AS, as, false) + AC_CHECK_TOOL(DLLTOOL, dlltool, false) + AC_CHECK_TOOL(OBJDUMP, objdump, false) + ;; +esac + +test -z "$AS" && AS=as +_LT_DECL([], [AS], [1], [Assembler program])dnl + +test -z "$DLLTOOL" && DLLTOOL=dlltool +_LT_DECL([], [DLLTOOL], [1], [DLL creation program])dnl + +test -z "$OBJDUMP" && OBJDUMP=objdump +_LT_DECL([], [OBJDUMP], [1], [Object dumper program])dnl +])# win32-dll + +AU_DEFUN([AC_LIBTOOL_WIN32_DLL], +[AC_REQUIRE([AC_CANONICAL_HOST])dnl +_LT_SET_OPTION([LT_INIT], [win32-dll]) +AC_DIAGNOSE([obsolete], +[$0: Remove this warning and the call to _LT_SET_OPTION when you +put the 'win32-dll' option into LT_INIT's first parameter.]) +]) + +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_WIN32_DLL], []) + + +# _LT_ENABLE_SHARED([DEFAULT]) +# ---------------------------- +# implement the --enable-shared flag, and supports the 'shared' and +# 'disable-shared' LT_INIT options. +# DEFAULT is either 'yes' or 'no'. If omitted, it defaults to 'yes'. +m4_define([_LT_ENABLE_SHARED], +[m4_define([_LT_ENABLE_SHARED_DEFAULT], [m4_if($1, no, no, yes)])dnl +AC_ARG_ENABLE([shared], + [AS_HELP_STRING([--enable-shared@<:@=PKGS@:>@], + [build shared libraries @<:@default=]_LT_ENABLE_SHARED_DEFAULT[@:>@])], + [p=${PACKAGE-default} + case $enableval in + yes) enable_shared=yes ;; + no) enable_shared=no ;; + *) + enable_shared=no + # Look at the argument we got. We use all the common list separators. + lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, + for pkg in $enableval; do + IFS=$lt_save_ifs + if test "X$pkg" = "X$p"; then + enable_shared=yes + fi + done + IFS=$lt_save_ifs + ;; + esac], + [enable_shared=]_LT_ENABLE_SHARED_DEFAULT) + + _LT_DECL([build_libtool_libs], [enable_shared], [0], + [Whether or not to build shared libraries]) +])# _LT_ENABLE_SHARED + +LT_OPTION_DEFINE([LT_INIT], [shared], [_LT_ENABLE_SHARED([yes])]) +LT_OPTION_DEFINE([LT_INIT], [disable-shared], [_LT_ENABLE_SHARED([no])]) + +# Old names: +AC_DEFUN([AC_ENABLE_SHARED], +[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[shared]) +]) + +AC_DEFUN([AC_DISABLE_SHARED], +[_LT_SET_OPTION([LT_INIT], [disable-shared]) +]) + +AU_DEFUN([AM_ENABLE_SHARED], [AC_ENABLE_SHARED($@)]) +AU_DEFUN([AM_DISABLE_SHARED], [AC_DISABLE_SHARED($@)]) + +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AM_ENABLE_SHARED], []) +dnl AC_DEFUN([AM_DISABLE_SHARED], []) + + + +# _LT_ENABLE_STATIC([DEFAULT]) +# ---------------------------- +# implement the --enable-static flag, and support the 'static' and +# 'disable-static' LT_INIT options. +# DEFAULT is either 'yes' or 'no'. If omitted, it defaults to 'yes'. +m4_define([_LT_ENABLE_STATIC], +[m4_define([_LT_ENABLE_STATIC_DEFAULT], [m4_if($1, no, no, yes)])dnl +AC_ARG_ENABLE([static], + [AS_HELP_STRING([--enable-static@<:@=PKGS@:>@], + [build static libraries @<:@default=]_LT_ENABLE_STATIC_DEFAULT[@:>@])], + [p=${PACKAGE-default} + case $enableval in + yes) enable_static=yes ;; + no) enable_static=no ;; + *) + enable_static=no + # Look at the argument we got. We use all the common list separators. + lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, + for pkg in $enableval; do + IFS=$lt_save_ifs + if test "X$pkg" = "X$p"; then + enable_static=yes + fi + done + IFS=$lt_save_ifs + ;; + esac], + [enable_static=]_LT_ENABLE_STATIC_DEFAULT) + + _LT_DECL([build_old_libs], [enable_static], [0], + [Whether or not to build static libraries]) +])# _LT_ENABLE_STATIC + +LT_OPTION_DEFINE([LT_INIT], [static], [_LT_ENABLE_STATIC([yes])]) +LT_OPTION_DEFINE([LT_INIT], [disable-static], [_LT_ENABLE_STATIC([no])]) + +# Old names: +AC_DEFUN([AC_ENABLE_STATIC], +[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[static]) +]) + +AC_DEFUN([AC_DISABLE_STATIC], +[_LT_SET_OPTION([LT_INIT], [disable-static]) +]) + +AU_DEFUN([AM_ENABLE_STATIC], [AC_ENABLE_STATIC($@)]) +AU_DEFUN([AM_DISABLE_STATIC], [AC_DISABLE_STATIC($@)]) + +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AM_ENABLE_STATIC], []) +dnl AC_DEFUN([AM_DISABLE_STATIC], []) + + + +# _LT_ENABLE_FAST_INSTALL([DEFAULT]) +# ---------------------------------- +# implement the --enable-fast-install flag, and support the 'fast-install' +# and 'disable-fast-install' LT_INIT options. +# DEFAULT is either 'yes' or 'no'. If omitted, it defaults to 'yes'. +m4_define([_LT_ENABLE_FAST_INSTALL], +[m4_define([_LT_ENABLE_FAST_INSTALL_DEFAULT], [m4_if($1, no, no, yes)])dnl +AC_ARG_ENABLE([fast-install], + [AS_HELP_STRING([--enable-fast-install@<:@=PKGS@:>@], + [optimize for fast installation @<:@default=]_LT_ENABLE_FAST_INSTALL_DEFAULT[@:>@])], + [p=${PACKAGE-default} + case $enableval in + yes) enable_fast_install=yes ;; + no) enable_fast_install=no ;; + *) + enable_fast_install=no + # Look at the argument we got. We use all the common list separators. + lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, + for pkg in $enableval; do + IFS=$lt_save_ifs + if test "X$pkg" = "X$p"; then + enable_fast_install=yes + fi + done + IFS=$lt_save_ifs + ;; + esac], + [enable_fast_install=]_LT_ENABLE_FAST_INSTALL_DEFAULT) + +_LT_DECL([fast_install], [enable_fast_install], [0], + [Whether or not to optimize for fast installation])dnl +])# _LT_ENABLE_FAST_INSTALL + +LT_OPTION_DEFINE([LT_INIT], [fast-install], [_LT_ENABLE_FAST_INSTALL([yes])]) +LT_OPTION_DEFINE([LT_INIT], [disable-fast-install], [_LT_ENABLE_FAST_INSTALL([no])]) + +# Old names: +AU_DEFUN([AC_ENABLE_FAST_INSTALL], +[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[fast-install]) +AC_DIAGNOSE([obsolete], +[$0: Remove this warning and the call to _LT_SET_OPTION when you put +the 'fast-install' option into LT_INIT's first parameter.]) +]) + +AU_DEFUN([AC_DISABLE_FAST_INSTALL], +[_LT_SET_OPTION([LT_INIT], [disable-fast-install]) +AC_DIAGNOSE([obsolete], +[$0: Remove this warning and the call to _LT_SET_OPTION when you put +the 'disable-fast-install' option into LT_INIT's first parameter.]) +]) + +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_ENABLE_FAST_INSTALL], []) +dnl AC_DEFUN([AM_DISABLE_FAST_INSTALL], []) + + +# _LT_WITH_AIX_SONAME([DEFAULT]) +# ---------------------------------- +# implement the --with-aix-soname flag, and support the `aix-soname=aix' +# and `aix-soname=both' and `aix-soname=svr4' LT_INIT options. DEFAULT +# is either `aix', `both' or `svr4'. If omitted, it defaults to `aix'. +m4_define([_LT_WITH_AIX_SONAME], +[m4_define([_LT_WITH_AIX_SONAME_DEFAULT], [m4_if($1, svr4, svr4, m4_if($1, both, both, aix))])dnl +shared_archive_member_spec= +case $host,$enable_shared in +power*-*-aix[[5-9]]*,yes) + AC_MSG_CHECKING([which variant of shared library versioning to provide]) + AC_ARG_WITH([aix-soname], + [AS_HELP_STRING([--with-aix-soname=aix|svr4|both], + [shared library versioning (aka "SONAME") variant to provide on AIX, @<:@default=]_LT_WITH_AIX_SONAME_DEFAULT[@:>@.])], + [case $withval in + aix|svr4|both) + ;; + *) + AC_MSG_ERROR([Unknown argument to --with-aix-soname]) + ;; + esac + lt_cv_with_aix_soname=$with_aix_soname], + [AC_CACHE_VAL([lt_cv_with_aix_soname], + [lt_cv_with_aix_soname=]_LT_WITH_AIX_SONAME_DEFAULT) + with_aix_soname=$lt_cv_with_aix_soname]) + AC_MSG_RESULT([$with_aix_soname]) + if test aix != "$with_aix_soname"; then + # For the AIX way of multilib, we name the shared archive member + # based on the bitwidth used, traditionally 'shr.o' or 'shr_64.o', + # and 'shr.imp' or 'shr_64.imp', respectively, for the Import File. + # Even when GNU compilers ignore OBJECT_MODE but need '-maix64' flag, + # the AIX toolchain works better with OBJECT_MODE set (default 32). + if test 64 = "${OBJECT_MODE-32}"; then + shared_archive_member_spec=shr_64 + else + shared_archive_member_spec=shr + fi + fi + ;; +*) + with_aix_soname=aix + ;; +esac + +_LT_DECL([], [shared_archive_member_spec], [0], + [Shared archive member basename, for filename based shared library versioning on AIX])dnl +])# _LT_WITH_AIX_SONAME + +LT_OPTION_DEFINE([LT_INIT], [aix-soname=aix], [_LT_WITH_AIX_SONAME([aix])]) +LT_OPTION_DEFINE([LT_INIT], [aix-soname=both], [_LT_WITH_AIX_SONAME([both])]) +LT_OPTION_DEFINE([LT_INIT], [aix-soname=svr4], [_LT_WITH_AIX_SONAME([svr4])]) + + +# _LT_WITH_PIC([MODE]) +# -------------------- +# implement the --with-pic flag, and support the 'pic-only' and 'no-pic' +# LT_INIT options. +# MODE is either 'yes' or 'no'. If omitted, it defaults to 'both'. +m4_define([_LT_WITH_PIC], +[AC_ARG_WITH([pic], + [AS_HELP_STRING([--with-pic@<:@=PKGS@:>@], + [try to use only PIC/non-PIC objects @<:@default=use both@:>@])], + [lt_p=${PACKAGE-default} + case $withval in + yes|no) pic_mode=$withval ;; + *) + pic_mode=default + # Look at the argument we got. We use all the common list separators. + lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, + for lt_pkg in $withval; do + IFS=$lt_save_ifs + if test "X$lt_pkg" = "X$lt_p"; then + pic_mode=yes + fi + done + IFS=$lt_save_ifs + ;; + esac], + [pic_mode=m4_default([$1], [default])]) + +_LT_DECL([], [pic_mode], [0], [What type of objects to build])dnl +])# _LT_WITH_PIC + +LT_OPTION_DEFINE([LT_INIT], [pic-only], [_LT_WITH_PIC([yes])]) +LT_OPTION_DEFINE([LT_INIT], [no-pic], [_LT_WITH_PIC([no])]) + +# Old name: +AU_DEFUN([AC_LIBTOOL_PICMODE], +[_LT_SET_OPTION([LT_INIT], [pic-only]) +AC_DIAGNOSE([obsolete], +[$0: Remove this warning and the call to _LT_SET_OPTION when you +put the 'pic-only' option into LT_INIT's first parameter.]) +]) + +dnl aclocal-1.4 backwards compatibility: +dnl AC_DEFUN([AC_LIBTOOL_PICMODE], []) + +## ----------------- ## +## LTDL_INIT Options ## +## ----------------- ## + +m4_define([_LTDL_MODE], []) +LT_OPTION_DEFINE([LTDL_INIT], [nonrecursive], + [m4_define([_LTDL_MODE], [nonrecursive])]) +LT_OPTION_DEFINE([LTDL_INIT], [recursive], + [m4_define([_LTDL_MODE], [recursive])]) +LT_OPTION_DEFINE([LTDL_INIT], [subproject], + [m4_define([_LTDL_MODE], [subproject])]) + +m4_define([_LTDL_TYPE], []) +LT_OPTION_DEFINE([LTDL_INIT], [installable], + [m4_define([_LTDL_TYPE], [installable])]) +LT_OPTION_DEFINE([LTDL_INIT], [convenience], + [m4_define([_LTDL_TYPE], [convenience])]) diff --git a/m4/ltsugar.m4 b/m4/ltsugar.m4 new file mode 100644 index 0000000..48bc934 --- /dev/null +++ b/m4/ltsugar.m4 @@ -0,0 +1,124 @@ +# ltsugar.m4 -- libtool m4 base layer. -*-Autoconf-*- +# +# Copyright (C) 2004-2005, 2007-2008, 2011-2015 Free Software +# Foundation, Inc. +# Written by Gary V. Vaughan, 2004 +# +# This file is free software; the Free Software Foundation gives +# unlimited permission to copy and/or distribute it, with or without +# modifications, as long as this notice is preserved. + +# serial 6 ltsugar.m4 + +# This is to help aclocal find these macros, as it can't see m4_define. +AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])]) + + +# lt_join(SEP, ARG1, [ARG2...]) +# ----------------------------- +# Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their +# associated separator. +# Needed until we can rely on m4_join from Autoconf 2.62, since all earlier +# versions in m4sugar had bugs. +m4_define([lt_join], +[m4_if([$#], [1], [], + [$#], [2], [[$2]], + [m4_if([$2], [], [], [[$2]_])$0([$1], m4_shift(m4_shift($@)))])]) +m4_define([_lt_join], +[m4_if([$#$2], [2], [], + [m4_if([$2], [], [], [[$1$2]])$0([$1], m4_shift(m4_shift($@)))])]) + + +# lt_car(LIST) +# lt_cdr(LIST) +# ------------ +# Manipulate m4 lists. +# These macros are necessary as long as will still need to support +# Autoconf-2.59, which quotes differently. +m4_define([lt_car], [[$1]]) +m4_define([lt_cdr], +[m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])], + [$#], 1, [], + [m4_dquote(m4_shift($@))])]) +m4_define([lt_unquote], $1) + + +# lt_append(MACRO-NAME, STRING, [SEPARATOR]) +# ------------------------------------------ +# Redefine MACRO-NAME to hold its former content plus 'SEPARATOR''STRING'. +# Note that neither SEPARATOR nor STRING are expanded; they are appended +# to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked). +# No SEPARATOR is output if MACRO-NAME was previously undefined (different +# than defined and empty). +# +# This macro is needed until we can rely on Autoconf 2.62, since earlier +# versions of m4sugar mistakenly expanded SEPARATOR but not STRING. +m4_define([lt_append], +[m4_define([$1], + m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])]) + + + +# lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...]) +# ---------------------------------------------------------- +# Produce a SEP delimited list of all paired combinations of elements of +# PREFIX-LIST with SUFFIX1 through SUFFIXn. Each element of the list +# has the form PREFIXmINFIXSUFFIXn. +# Needed until we can rely on m4_combine added in Autoconf 2.62. +m4_define([lt_combine], +[m4_if(m4_eval([$# > 3]), [1], + [m4_pushdef([_Lt_sep], [m4_define([_Lt_sep], m4_defn([lt_car]))])]]dnl +[[m4_foreach([_Lt_prefix], [$2], + [m4_foreach([_Lt_suffix], + ]m4_dquote(m4_dquote(m4_shift(m4_shift(m4_shift($@)))))[, + [_Lt_sep([$1])[]m4_defn([_Lt_prefix])[$3]m4_defn([_Lt_suffix])])])])]) + + +# lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ]) +# ----------------------------------------------------------------------- +# Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited +# by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ. +m4_define([lt_if_append_uniq], +[m4_ifdef([$1], + [m4_if(m4_index([$3]m4_defn([$1])[$3], [$3$2$3]), [-1], + [lt_append([$1], [$2], [$3])$4], + [$5])], + [lt_append([$1], [$2], [$3])$4])]) + + +# lt_dict_add(DICT, KEY, VALUE) +# ----------------------------- +m4_define([lt_dict_add], +[m4_define([$1($2)], [$3])]) + + +# lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE) +# -------------------------------------------- +m4_define([lt_dict_add_subkey], +[m4_define([$1($2:$3)], [$4])]) + + +# lt_dict_fetch(DICT, KEY, [SUBKEY]) +# ---------------------------------- +m4_define([lt_dict_fetch], +[m4_ifval([$3], + m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]), + m4_ifdef([$1($2)], [m4_defn([$1($2)])]))]) + + +# lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE]) +# ----------------------------------------------------------------- +m4_define([lt_if_dict_fetch], +[m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4], + [$5], + [$6])]) + + +# lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...]) +# -------------------------------------------------------------- +m4_define([lt_dict_filter], +[m4_if([$5], [], [], + [lt_join(m4_quote(m4_default([$4], [[, ]])), + lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]), + [lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl +]) diff --git a/m4/ltversion.m4 b/m4/ltversion.m4 new file mode 100644 index 0000000..fa04b52 --- /dev/null +++ b/m4/ltversion.m4 @@ -0,0 +1,23 @@ +# ltversion.m4 -- version numbers -*- Autoconf -*- +# +# Copyright (C) 2004, 2011-2015 Free Software Foundation, Inc. +# Written by Scott James Remnant, 2004 +# +# This file is free software; the Free Software Foundation gives +# unlimited permission to copy and/or distribute it, with or without +# modifications, as long as this notice is preserved. + +# @configure_input@ + +# serial 4179 ltversion.m4 +# This file is part of GNU Libtool + +m4_define([LT_PACKAGE_VERSION], [2.4.6]) +m4_define([LT_PACKAGE_REVISION], [2.4.6]) + +AC_DEFUN([LTVERSION_VERSION], +[macro_version='2.4.6' +macro_revision='2.4.6' +_LT_DECL(, macro_version, 0, [Which release of libtool.m4 was used?]) +_LT_DECL(, macro_revision, 0) +]) diff --git a/m4/lt~obsolete.m4 b/m4/lt~obsolete.m4 new file mode 100644 index 0000000..c6b26f8 --- /dev/null +++ b/m4/lt~obsolete.m4 @@ -0,0 +1,99 @@ +# lt~obsolete.m4 -- aclocal satisfying obsolete definitions. -*-Autoconf-*- +# +# Copyright (C) 2004-2005, 2007, 2009, 2011-2015 Free Software +# Foundation, Inc. +# Written by Scott James Remnant, 2004. +# +# This file is free software; the Free Software Foundation gives +# unlimited permission to copy and/or distribute it, with or without +# modifications, as long as this notice is preserved. + +# serial 5 lt~obsolete.m4 + +# These exist entirely to fool aclocal when bootstrapping libtool. +# +# In the past libtool.m4 has provided macros via AC_DEFUN (or AU_DEFUN), +# which have later been changed to m4_define as they aren't part of the +# exported API, or moved to Autoconf or Automake where they belong. +# +# The trouble is, aclocal is a bit thick. It'll see the old AC_DEFUN +# in /usr/share/aclocal/libtool.m4 and remember it, then when it sees us +# using a macro with the same name in our local m4/libtool.m4 it'll +# pull the old libtool.m4 in (it doesn't see our shiny new m4_define +# and doesn't know about Autoconf macros at all.) +# +# So we provide this file, which has a silly filename so it's always +# included after everything else. This provides aclocal with the +# AC_DEFUNs it wants, but when m4 processes it, it doesn't do anything +# because those macros already exist, or will be overwritten later. +# We use AC_DEFUN over AU_DEFUN for compatibility with aclocal-1.6. +# +# Anytime we withdraw an AC_DEFUN or AU_DEFUN, remember to add it here. +# Yes, that means every name once taken will need to remain here until +# we give up compatibility with versions before 1.7, at which point +# we need to keep only those names which we still refer to. + +# This is to help aclocal find these macros, as it can't see m4_define. +AC_DEFUN([LTOBSOLETE_VERSION], [m4_if([1])]) + +m4_ifndef([AC_LIBTOOL_LINKER_OPTION], [AC_DEFUN([AC_LIBTOOL_LINKER_OPTION])]) +m4_ifndef([AC_PROG_EGREP], [AC_DEFUN([AC_PROG_EGREP])]) +m4_ifndef([_LT_AC_PROG_ECHO_BACKSLASH], [AC_DEFUN([_LT_AC_PROG_ECHO_BACKSLASH])]) +m4_ifndef([_LT_AC_SHELL_INIT], [AC_DEFUN([_LT_AC_SHELL_INIT])]) +m4_ifndef([_LT_AC_SYS_LIBPATH_AIX], [AC_DEFUN([_LT_AC_SYS_LIBPATH_AIX])]) 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[AC_DEFUN([_LT_COMPILER_BOILERPLATE])]) +m4_ifndef([_LT_LINKER_BOILERPLATE], [AC_DEFUN([_LT_LINKER_BOILERPLATE])]) +m4_ifndef([_AC_PROG_LIBTOOL], [AC_DEFUN([_AC_PROG_LIBTOOL])]) +m4_ifndef([AC_LIBTOOL_SETUP], [AC_DEFUN([AC_LIBTOOL_SETUP])]) +m4_ifndef([_LT_AC_CHECK_DLFCN], [AC_DEFUN([_LT_AC_CHECK_DLFCN])]) +m4_ifndef([AC_LIBTOOL_SYS_DYNAMIC_LINKER], [AC_DEFUN([AC_LIBTOOL_SYS_DYNAMIC_LINKER])]) +m4_ifndef([_LT_AC_TAGCONFIG], [AC_DEFUN([_LT_AC_TAGCONFIG])]) +m4_ifndef([AC_DISABLE_FAST_INSTALL], [AC_DEFUN([AC_DISABLE_FAST_INSTALL])]) +m4_ifndef([_LT_AC_LANG_CXX], [AC_DEFUN([_LT_AC_LANG_CXX])]) +m4_ifndef([_LT_AC_LANG_F77], [AC_DEFUN([_LT_AC_LANG_F77])]) +m4_ifndef([_LT_AC_LANG_GCJ], [AC_DEFUN([_LT_AC_LANG_GCJ])]) +m4_ifndef([AC_LIBTOOL_LANG_C_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_C_CONFIG])]) +m4_ifndef([_LT_AC_LANG_C_CONFIG], [AC_DEFUN([_LT_AC_LANG_C_CONFIG])]) +m4_ifndef([AC_LIBTOOL_LANG_CXX_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_CXX_CONFIG])]) +m4_ifndef([_LT_AC_LANG_CXX_CONFIG], [AC_DEFUN([_LT_AC_LANG_CXX_CONFIG])]) +m4_ifndef([AC_LIBTOOL_LANG_F77_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_F77_CONFIG])]) +m4_ifndef([_LT_AC_LANG_F77_CONFIG], [AC_DEFUN([_LT_AC_LANG_F77_CONFIG])]) +m4_ifndef([AC_LIBTOOL_LANG_GCJ_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_GCJ_CONFIG])]) +m4_ifndef([_LT_AC_LANG_GCJ_CONFIG], [AC_DEFUN([_LT_AC_LANG_GCJ_CONFIG])]) +m4_ifndef([AC_LIBTOOL_LANG_RC_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_RC_CONFIG])]) +m4_ifndef([_LT_AC_LANG_RC_CONFIG], [AC_DEFUN([_LT_AC_LANG_RC_CONFIG])]) +m4_ifndef([AC_LIBTOOL_CONFIG], [AC_DEFUN([AC_LIBTOOL_CONFIG])]) +m4_ifndef([_LT_AC_FILE_LTDLL_C], [AC_DEFUN([_LT_AC_FILE_LTDLL_C])]) +m4_ifndef([_LT_REQUIRED_DARWIN_CHECKS], [AC_DEFUN([_LT_REQUIRED_DARWIN_CHECKS])]) +m4_ifndef([_LT_AC_PROG_CXXCPP], [AC_DEFUN([_LT_AC_PROG_CXXCPP])]) +m4_ifndef([_LT_PREPARE_SED_QUOTE_VARS], [AC_DEFUN([_LT_PREPARE_SED_QUOTE_VARS])]) +m4_ifndef([_LT_PROG_ECHO_BACKSLASH], [AC_DEFUN([_LT_PROG_ECHO_BACKSLASH])]) +m4_ifndef([_LT_PROG_F77], [AC_DEFUN([_LT_PROG_F77])]) +m4_ifndef([_LT_PROG_FC], [AC_DEFUN([_LT_PROG_FC])]) +m4_ifndef([_LT_PROG_CXX], [AC_DEFUN([_LT_PROG_CXX])]) diff --git a/m4/ocaml.m4 b/m4/ocaml.m4 new file mode 100644 index 0000000..479f3a8 --- /dev/null +++ b/m4/ocaml.m4 @@ -0,0 +1,240 @@ +dnl autoconf macros for OCaml +dnl +dnl Copyright © 2009 Richard W.M. Jones +dnl Copyright © 2009 Stefano Zacchiroli +dnl Copyright © 2000-2005 Olivier Andrieu +dnl Copyright © 2000-2005 Jean-Christophe Filliâtre +dnl Copyright © 2000-2005 Georges Mariano +dnl +dnl For documentation, please read the ocaml.m4 man page. + +AC_DEFUN([AC_PROG_OCAML], +[dnl + # checking for ocamlc + AC_CHECK_TOOL([OCAMLC],[ocamlc],[no]) + + if test "$OCAMLC" != "no"; then + OCAMLVERSION=`$OCAMLC -v | sed -n -e 's|.*version* *\(.*\)$|\1|p'` + AC_MSG_RESULT([OCaml version is $OCAMLVERSION]) + # If OCAMLLIB is set, use it + if test "$OCAMLLIB" = ""; then + OCAMLLIB=`$OCAMLC -where 2>/dev/null || $OCAMLC -v|tail -1|cut -d ' ' -f 4` + else + AC_MSG_RESULT([OCAMLLIB previously set; preserving it.]) + fi + AC_MSG_RESULT([OCaml library path is $OCAMLLIB]) + + AC_SUBST([OCAMLVERSION]) + AC_SUBST([OCAMLLIB]) + + # checking for ocamlopt + AC_CHECK_TOOL([OCAMLOPT],[ocamlopt],[no]) + OCAMLBEST=byte + if test "$OCAMLOPT" = "no"; then + AC_MSG_WARN([Cannot find ocamlopt; bytecode compilation only.]) + else + TMPVERSION=`$OCAMLOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' ` + if test "$TMPVERSION" != "$OCAMLVERSION" ; then + AC_MSG_RESULT([versions differs from ocamlc; ocamlopt discarded.]) + OCAMLOPT=no + else + OCAMLBEST=opt + fi + fi + + AC_SUBST([OCAMLBEST]) + + # checking for ocamlc.opt + AC_CHECK_TOOL([OCAMLCDOTOPT],[ocamlc.opt],[no]) + if test "$OCAMLCDOTOPT" != "no"; then + TMPVERSION=`$OCAMLCDOTOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' ` + if test "$TMPVERSION" != "$OCAMLVERSION" ; then + AC_MSG_RESULT([versions differs from ocamlc; ocamlc.opt discarded.]) + else + OCAMLC=$OCAMLCDOTOPT + fi + fi + + # checking for ocamlopt.opt + if test "$OCAMLOPT" != "no" ; then + AC_CHECK_TOOL([OCAMLOPTDOTOPT],[ocamlopt.opt],[no]) + if test "$OCAMLOPTDOTOPT" != "no"; then + TMPVERSION=`$OCAMLOPTDOTOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' ` + if test "$TMPVERSION" != "$OCAMLVERSION" ; then + AC_MSG_RESULT([version differs from ocamlc; ocamlopt.opt discarded.]) + else + OCAMLOPT=$OCAMLOPTDOTOPT + fi + fi + fi + + AC_SUBST([OCAMLOPT]) + fi + + AC_SUBST([OCAMLC]) + + # checking for ocaml toplevel + AC_CHECK_TOOL([OCAML],[ocaml],[no]) + + # checking for ocamldep + AC_CHECK_TOOL([OCAMLDEP],[ocamldep],[no]) + + # checking for ocamlmktop + AC_CHECK_TOOL([OCAMLMKTOP],[ocamlmktop],[no]) + + # checking for ocamlmklib + AC_CHECK_TOOL([OCAMLMKLIB],[ocamlmklib],[no]) + + # checking for ocamldoc + AC_CHECK_TOOL([OCAMLDOC],[ocamldoc],[no]) + + # checking for ocamlbuild + AC_CHECK_TOOL([OCAMLBUILD],[ocamlbuild],[no]) +]) + + +AC_DEFUN([AC_PROG_OCAMLLEX], +[dnl + # checking for ocamllex + AC_CHECK_TOOL([OCAMLLEX],[ocamllex],[no]) + if test "$OCAMLLEX" != "no"; then + AC_CHECK_TOOL([OCAMLLEXDOTOPT],[ocamllex.opt],[no]) + if test "$OCAMLLEXDOTOPT" != "no"; then + OCAMLLEX=$OCAMLLEXDOTOPT + fi + fi + AC_SUBST([OCAMLLEX]) +]) + +AC_DEFUN([AC_PROG_OCAMLYACC], +[dnl + AC_CHECK_TOOL([OCAMLYACC],[ocamlyacc],[no]) + AC_SUBST([OCAMLYACC]) +]) + + +AC_DEFUN([AC_PROG_CAMLP4], +[dnl + AC_REQUIRE([AC_PROG_OCAML])dnl + + # checking for camlp4 + AC_CHECK_TOOL([CAMLP4],[camlp4],[no]) + if test "$CAMLP4" != "no"; then + TMPVERSION=`$CAMLP4 -v 2>&1| sed -n -e 's|.*version *\(.*\)$|\1|p'` + if test "$TMPVERSION" != "$OCAMLVERSION" ; then + AC_MSG_RESULT([versions differs from ocamlc]) + CAMLP4=no + fi + fi + AC_SUBST([CAMLP4]) + + # checking for companion tools + AC_CHECK_TOOL([CAMLP4BOOT],[camlp4boot],[no]) + AC_CHECK_TOOL([CAMLP4O],[camlp4o],[no]) + AC_CHECK_TOOL([CAMLP4OF],[camlp4of],[no]) + AC_CHECK_TOOL([CAMLP4OOF],[camlp4oof],[no]) + AC_CHECK_TOOL([CAMLP4ORF],[camlp4orf],[no]) + AC_CHECK_TOOL([CAMLP4PROF],[camlp4prof],[no]) + AC_CHECK_TOOL([CAMLP4R],[camlp4r],[no]) + AC_CHECK_TOOL([CAMLP4RF],[camlp4rf],[no]) + AC_SUBST([CAMLP4BOOT]) + AC_SUBST([CAMLP4O]) + AC_SUBST([CAMLP4OF]) + AC_SUBST([CAMLP4OOF]) + AC_SUBST([CAMLP4ORF]) + AC_SUBST([CAMLP4PROF]) + AC_SUBST([CAMLP4R]) + AC_SUBST([CAMLP4RF]) +]) + + +AC_DEFUN([AC_PROG_FINDLIB], +[dnl + AC_REQUIRE([AC_PROG_OCAML])dnl + + # checking for ocamlfind + AC_CHECK_TOOL([OCAMLFIND],[ocamlfind],[no]) + AC_SUBST([OCAMLFIND]) +]) + + +dnl Thanks to Jim Meyering for working this next bit out for us. +dnl XXX We should define AS_TR_SH if it's not defined already +dnl (eg. for old autoconf). +AC_DEFUN([AC_CHECK_OCAML_PKG], +[dnl + AC_REQUIRE([AC_PROG_FINDLIB])dnl + + AC_MSG_CHECKING([for OCaml findlib package $1]) + + unset found + unset pkg + found=no + for pkg in $1 $2 ; do + if $OCAMLFIND query $pkg >/dev/null 2>/dev/null; then + AC_MSG_RESULT([found]) + AS_TR_SH([OCAML_PKG_$1])=$pkg + found=yes + break + fi + done + if test "$found" = "no" ; then + AC_MSG_RESULT([not found]) + AS_TR_SH([OCAML_PKG_$1])=no + fi + + AC_SUBST(AS_TR_SH([OCAML_PKG_$1])) +]) + + +AC_DEFUN([AC_CHECK_OCAML_MODULE], +[dnl + AC_MSG_CHECKING([for OCaml module $2]) + + cat > conftest.ml <&5 2>&5 ; then + found=yes + break + fi + done + + if test "$found" ; then + AC_MSG_RESULT([$$1]) + else + AC_MSG_RESULT([not found]) + $1=no + fi + AC_SUBST([$1]) +]) + + +dnl XXX Cross-compiling +AC_DEFUN([AC_CHECK_OCAML_WORD_SIZE], +[dnl + AC_REQUIRE([AC_PROG_OCAML])dnl + AC_MSG_CHECKING([for OCaml compiler word size]) + cat > conftest.ml < conftest.ml <, 1996. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + +if test $# -eq 0; then + echo 1>&2 "Try '$0 --help' for more information" + exit 1 +fi + +case $1 in + + --is-lightweight) + # Used by our autoconf macros to check whether the available missing + # script is modern enough. + exit 0 + ;; + + --run) + # Back-compat with the calling convention used by older automake. + shift + ;; + + -h|--h|--he|--hel|--help) + echo "\ +$0 [OPTION]... PROGRAM [ARGUMENT]... + +Run 'PROGRAM [ARGUMENT]...', returning a proper advice when this fails due +to PROGRAM being missing or too old. + +Options: + -h, --help display this help and exit + -v, --version output version information and exit + +Supported PROGRAM values: + aclocal autoconf autoheader autom4te automake makeinfo + bison yacc flex lex help2man + +Version suffixes to PROGRAM as well as the prefixes 'gnu-', 'gnu', and +'g' are ignored when checking the name. + +Send bug reports to ." + exit $? + ;; + + -v|--v|--ve|--ver|--vers|--versi|--versio|--version) + echo "missing $scriptversion (GNU Automake)" + exit $? + ;; + + -*) + echo 1>&2 "$0: unknown '$1' option" + echo 1>&2 "Try '$0 --help' for more information" + exit 1 + ;; + +esac + +# Run the given program, remember its exit status. +"$@"; st=$? + +# If it succeeded, we are done. +test $st -eq 0 && exit 0 + +# Also exit now if we it failed (or wasn't found), and '--version' was +# passed; such an option is passed most likely to detect whether the +# program is present and works. +case $2 in --version|--help) exit $st;; esac + +# Exit code 63 means version mismatch. This often happens when the user +# tries to use an ancient version of a tool on a file that requires a +# minimum version. +if test $st -eq 63; then + msg="probably too old" +elif test $st -eq 127; then + # Program was missing. + msg="missing on your system" +else + # Program was found and executed, but failed. Give up. + exit $st +fi + +perl_URL=https://www.perl.org/ +flex_URL=https://github.com/westes/flex +gnu_software_URL=https://www.gnu.org/software + +program_details () +{ + case $1 in + aclocal|automake) + echo "The '$1' program is part of the GNU Automake package:" + echo "<$gnu_software_URL/automake>" + echo "It also requires GNU Autoconf, GNU m4 and Perl in order to run:" + echo "<$gnu_software_URL/autoconf>" + echo "<$gnu_software_URL/m4/>" + echo "<$perl_URL>" + ;; + autoconf|autom4te|autoheader) + echo "The '$1' program is part of the GNU Autoconf package:" + echo "<$gnu_software_URL/autoconf/>" + echo "It also requires GNU m4 and Perl in order to run:" + echo "<$gnu_software_URL/m4/>" + echo "<$perl_URL>" + ;; + esac +} + +give_advice () +{ + # Normalize program name to check for. + normalized_program=`echo "$1" | sed ' + s/^gnu-//; t + s/^gnu//; t + s/^g//; t'` + + printf '%s\n' "'$1' is $msg." + + configure_deps="'configure.ac' or m4 files included by 'configure.ac'" + case $normalized_program in + autoconf*) + echo "You should only need it if you modified 'configure.ac'," + echo "or m4 files included by it." + program_details 'autoconf' + ;; + autoheader*) + echo "You should only need it if you modified 'acconfig.h' or" + echo "$configure_deps." + program_details 'autoheader' + ;; + automake*) + echo "You should only need it if you modified 'Makefile.am' or" + echo "$configure_deps." + program_details 'automake' + ;; + aclocal*) + echo "You should only need it if you modified 'acinclude.m4' or" + echo "$configure_deps." + program_details 'aclocal' + ;; + autom4te*) + echo "You might have modified some maintainer files that require" + echo "the 'autom4te' program to be rebuilt." + program_details 'autom4te' + ;; + bison*|yacc*) + echo "You should only need it if you modified a '.y' file." + echo "You may want to install the GNU Bison package:" + echo "<$gnu_software_URL/bison/>" + ;; + lex*|flex*) + echo "You should only need it if you modified a '.l' file." + echo "You may want to install the Fast Lexical Analyzer package:" + echo "<$flex_URL>" + ;; + help2man*) + echo "You should only need it if you modified a dependency" \ + "of a man page." + echo "You may want to install the GNU Help2man package:" + echo "<$gnu_software_URL/help2man/>" + ;; + makeinfo*) + echo "You should only need it if you modified a '.texi' file, or" + echo "any other file indirectly affecting the aspect of the manual." + echo "You might want to install the Texinfo package:" + echo "<$gnu_software_URL/texinfo/>" + echo "The spurious makeinfo call might also be the consequence of" + echo "using a buggy 'make' (AIX, DU, IRIX), in which case you might" + echo "want to install GNU make:" + echo "<$gnu_software_URL/make/>" + ;; + *) + echo "You might have modified some files without having the proper" + echo "tools for further handling them. Check the 'README' file, it" + echo "often tells you about the needed prerequisites for installing" + echo "this package. You may also peek at any GNU archive site, in" + echo "case some other package contains this missing '$1' program." + ;; + esac +} + +give_advice "$1" | sed -e '1s/^/WARNING: /' \ + -e '2,$s/^/ /' >&2 + +# Propagate the correct exit status (expected to be 127 for a program +# not found, 63 for a program that failed due to version mismatch). +exit $st + +# Local variables: +# eval: (add-hook 'before-save-hook 'time-stamp) +# time-stamp-start: "scriptversion=" +# time-stamp-format: "%:y-%02m-%02d.%02H" +# time-stamp-time-zone: "UTC0" +# time-stamp-end: "; # UTC" +# End: diff --git a/plugins/Makefile.am b/plugins/Makefile.am new file mode 100644 index 0000000..1d2f8a9 --- /dev/null +++ b/plugins/Makefile.am @@ -0,0 +1,36 @@ +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = plugins.syms + +SUBDIRS = $(plugins) diff --git a/plugins/Makefile.in b/plugins/Makefile.in new file mode 100644 index 0000000..baa655d --- /dev/null +++ b/plugins/Makefile.in @@ -0,0 +1,768 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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may require special tools to rebuild." +clean: clean-am + +clean-am: clean-generic clean-libtool clean-pluginLTLIBRARIES \ + mostlyclean-am + +distclean: distclean-am + -rm -f ./$(DEPDIR)/nbdkit_curl_plugin_la-curl.Plo + -rm -f Makefile +distclean-am: clean-am distclean-compile distclean-generic \ + distclean-tags + +dvi: dvi-am + +dvi-am: + +html: html-am + +html-am: + +info: info-am + +info-am: + +install-data-am: install-man install-pluginLTLIBRARIES + +install-dvi: install-dvi-am + +install-dvi-am: + +install-exec-am: + +install-html: install-html-am + +install-html-am: + +install-info: install-info-am + +install-info-am: + +install-man: install-man1 + +install-pdf: install-pdf-am + +install-pdf-am: + +install-ps: install-ps-am + +install-ps-am: + +installcheck-am: + +maintainer-clean: maintainer-clean-am + -rm -f ./$(DEPDIR)/nbdkit_curl_plugin_la-curl.Plo + -rm -f Makefile +maintainer-clean-am: distclean-am maintainer-clean-generic + +mostlyclean: mostlyclean-am + +mostlyclean-am: mostlyclean-compile mostlyclean-generic \ + mostlyclean-libtool + +pdf: pdf-am + +pdf-am: + +ps: ps-am + +ps-am: + +uninstall-am: uninstall-man uninstall-pluginLTLIBRARIES + +uninstall-man: uninstall-man1 + +.MAKE: install-am install-strip + +.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am clean \ + clean-generic clean-libtool clean-pluginLTLIBRARIES \ + cscopelist-am ctags ctags-am distclean distclean-compile \ + distclean-generic distclean-libtool distclean-tags distdir dvi \ + dvi-am html html-am info info-am install install-am \ + install-data install-data-am install-dvi install-dvi-am \ + install-exec install-exec-am install-html install-html-am \ + install-info install-info-am install-man install-man1 \ + install-pdf install-pdf-am install-pluginLTLIBRARIES \ + install-ps install-ps-am install-strip installcheck \ + installcheck-am installdirs maintainer-clean \ + maintainer-clean-generic mostlyclean mostlyclean-compile \ + mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \ + tags tags-am uninstall uninstall-am uninstall-man \ + uninstall-man1 uninstall-pluginLTLIBRARIES + +.PRECIOUS: Makefile + + +@HAVE_CURL_TRUE@@HAVE_POD_TRUE@nbdkit-curl-plugin.1: nbdkit-curl-plugin.pod +@HAVE_CURL_TRUE@@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_CURL_TRUE@@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_CURL_TRUE@@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/plugins/curl/curl.c b/plugins/curl/curl.c new file mode 100644 index 0000000..7e3e8c9 --- /dev/null +++ b/plugins/curl/curl.c @@ -0,0 +1,591 @@ +/* nbdkit + * Copyright (C) 2014 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* NB: The terminology used by libcurl is confusing! + * + * WRITEFUNCTION / write_cb is used when reading from the remote server + * READFUNCTION / read_cb is used when writing to the remote server. + * + * We use the same terminology as libcurl here. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include + +static const char *url = NULL; +static const char *user = NULL; +static char *password = NULL; +static const char *proxy_user = NULL; +static char *proxy_password = NULL; +static char *cookie = NULL; +static bool sslverify = true; +static long timeout = 0; +static const char *unix_socket_path = NULL; +static long protocols = CURLPROTO_ALL; + +/* Use '-D curl.verbose=1' to set. */ +int curl_debug_verbose = 0; + +static void +curl_load (void) +{ + CURLcode r; + + r = curl_global_init (CURL_GLOBAL_DEFAULT); + if (r != CURLE_OK) { + nbdkit_error ("libcurl initialization failed: %d", (int) r); + exit (EXIT_FAILURE); + } +} + +static void +curl_unload (void) +{ + free (password); + free (proxy_password); + free (cookie); + curl_global_cleanup (); +} + +/* See */ +static struct { const char *name; long bitmask; } curl_protocols[] = { + { "http", CURLPROTO_HTTP }, + { "https", CURLPROTO_HTTPS }, + { "ftp", CURLPROTO_FTP }, + { "ftps", CURLPROTO_FTPS }, + { "scp", CURLPROTO_SCP }, + { "sftp", CURLPROTO_SFTP }, + { "telnet", CURLPROTO_TELNET }, + { "ldap", CURLPROTO_LDAP }, + { "ldaps", CURLPROTO_LDAPS }, + { "dict", CURLPROTO_DICT }, + { "file", CURLPROTO_FILE }, + { "tftp", CURLPROTO_TFTP }, + { "imap", CURLPROTO_IMAP }, + { "imaps", CURLPROTO_IMAPS }, + { "pop3", CURLPROTO_POP3 }, + { "pop3s", CURLPROTO_POP3S }, + { "smtp", CURLPROTO_SMTP }, + { "smtps", CURLPROTO_SMTPS }, + { "rtsp", CURLPROTO_RTSP }, + { "rtmp", CURLPROTO_RTMP }, + { "rtmpt", CURLPROTO_RTMPT }, + { "rtmpe", CURLPROTO_RTMPE }, + { "rtmpte", CURLPROTO_RTMPTE }, + { "rtmps", CURLPROTO_RTMPS }, + { "rtmpts", CURLPROTO_RTMPTS }, + { "gopher", CURLPROTO_GOPHER }, + { "smb", CURLPROTO_SMB }, + { "smbs", CURLPROTO_SMBS }, + { NULL } +}; + +/* Parse the protocols parameter. */ +static int +parse_protocols (const char *value) +{ + size_t n, i; + + protocols = 0; + + while (*value) { + n = strcspn (value, ","); + for (i = 0; curl_protocols[i].name != NULL; ++i) { + if (strlen (curl_protocols[i].name) == n && + strncmp (value, curl_protocols[i].name, n) == 0) { + protocols |= curl_protocols[i].bitmask; + goto found; + } + } + nbdkit_error ("protocols: protocol name not found: %.*s", (int) n, value); + return -1; + + found: + value += n; + if (*value == ',') + value++; + } + + if (protocols == 0) { + nbdkit_error ("protocols: empty list of protocols is not allowed"); + return -1; + } + + nbdkit_debug ("curl: protocols: %ld", protocols); + + return 0; +} + +/* Called for each key=value passed on the command line. */ +static int +curl_config (const char *key, const char *value) +{ + int r; + + if (strcmp (key, "url") == 0) + url = value; + + else if (strcmp (key, "user") == 0) + user = value; + + else if (strcmp (key, "password") == 0) { + free (password); + if (nbdkit_read_password (value, &password) == -1) + return -1; + } + + else if (strcmp (key, "proxy-user") == 0) + proxy_user = value; + + else if (strcmp (key, "proxy-password") == 0) { + free (proxy_password); + if (nbdkit_read_password (value, &proxy_password) == -1) + return -1; + } + + else if (strcmp (key, "cookie") == 0) { + free (cookie); + if (nbdkit_read_password (value, &cookie) == -1) + return -1; + } + + else if (strcmp (key, "sslverify") == 0) { + r = nbdkit_parse_bool (value); + if (r == -1) + return -1; + sslverify = r; + } + + else if (strcmp (key, "timeout") == 0) { + if (sscanf (value, "%ld", &timeout) != 1 || timeout < 0) { + nbdkit_error ("'timeout' must be 0 or a positive timeout in seconds"); + return -1; + } + } + + else if (strcmp (key, "unix-socket-path") == 0 || + strcmp (key, "unix_socket_path") == 0) + unix_socket_path = value; + + else if (strcmp (key, "protocols") == 0) { + if (parse_protocols (value) == -1) + return -1; + } + + else { + nbdkit_error ("unknown parameter '%s'", key); + return -1; + } + + return 0; +} + +/* Check the user did pass a url parameter. */ +static int +curl_config_complete (void) +{ + if (url == NULL) { + nbdkit_error ("you must supply the url= parameter " + "after the plugin name on the command line"); + return -1; + } + + return 0; +} + +#define curl_config_help \ + "cookie= Set HTTP/HTTPS cookies.\n" \ + "password= The password for the user account.\n" \ + "protocols=PROTO,PROTO,.. Limit protocols allowed.\n" \ + "proxy-password= The proxy password.\n" \ + "proxy-user= The proxy user.\n" \ + "timeout= Set the timeout for requests (seconds).\n" \ + "sslverify=false Do not verify SSL certificate of remote host.\n" \ + "unix-socket-path= Open Unix domain socket instead of TCP/IP.\n" \ + "url= (required) The disk image URL to serve.\n" \ + "user= The user to log in as." + +/* The per-connection handle. */ +struct curl_handle { + CURL *c; + bool accept_range; + int64_t exportsize; + char errbuf[CURL_ERROR_SIZE]; + char *write_buf; + uint32_t write_count; + const char *read_buf; + uint32_t read_count; +}; + +/* Translate CURLcode to nbdkit_error. */ +#define display_curl_error(h, r, fs, ...) \ + do { \ + nbdkit_error ((fs ": %s: %s"), ## __VA_ARGS__, \ + curl_easy_strerror ((r)), (h)->errbuf); \ + } while (0) + +static size_t header_cb (void *ptr, size_t size, size_t nmemb, void *opaque); +static size_t write_cb (char *ptr, size_t size, size_t nmemb, void *opaque); +static size_t read_cb (void *ptr, size_t size, size_t nmemb, void *opaque); + +/* Create the per-connection handle. */ +static void * +curl_open (int readonly) +{ + struct curl_handle *h; + CURLcode r; + double d; + + h = calloc (1, sizeof *h); + if (h == NULL) { + nbdkit_error ("calloc: %m"); + return NULL; + } + + h->c = curl_easy_init (); + if (h->c == NULL) { + nbdkit_error ("curl_easy_init: failed: %m"); + goto err; + } + + nbdkit_debug ("opened libcurl easy handle"); + + /* Note this writes the output to stderr directly. We should + * consider using CURLOPT_DEBUGFUNCTION so we can handle it with + * nbdkit_debug. + */ + curl_easy_setopt (h->c, CURLOPT_VERBOSE, curl_debug_verbose); + + curl_easy_setopt (h->c, CURLOPT_ERRORBUFFER, h->errbuf); + + r = CURLE_OK; + if (unix_socket_path) { +#if HAVE_CURLOPT_UNIX_SOCKET_PATH + r = curl_easy_setopt (h->c, CURLOPT_UNIX_SOCKET_PATH, unix_socket_path); +#else + r = CURLE_UNKNOWN_OPTION; +#endif + } + if (r != CURLE_OK) { + display_curl_error (h, r, "curl_easy_setopt: CURLOPT_UNIX_SOCKET_PATH"); + goto err; + } + + r = curl_easy_setopt (h->c, CURLOPT_URL, url); + if (r != CURLE_OK) { + display_curl_error (h, r, "curl_easy_setopt: CURLOPT_URL [%s]", url); + goto err; + } + + nbdkit_debug ("set libcurl URL: %s", url); + + curl_easy_setopt (h->c, CURLOPT_AUTOREFERER, 1); + curl_easy_setopt (h->c, CURLOPT_FOLLOWLOCATION, 1); + curl_easy_setopt (h->c, CURLOPT_FAILONERROR, 1); + if (protocols != CURLPROTO_ALL) { + curl_easy_setopt (h->c, CURLOPT_PROTOCOLS, protocols); + curl_easy_setopt (h->c, CURLOPT_REDIR_PROTOCOLS, protocols); + } + if (timeout > 0) + curl_easy_setopt (h->c, CURLOPT_TIMEOUT, timeout); + if (!sslverify) { + curl_easy_setopt (h->c, CURLOPT_SSL_VERIFYPEER, 0L); + curl_easy_setopt (h->c, CURLOPT_SSL_VERIFYHOST, 0L); + } + if (user) + curl_easy_setopt (h->c, CURLOPT_USERNAME, user); + if (password) + curl_easy_setopt (h->c, CURLOPT_PASSWORD, password); + if (proxy_user) + curl_easy_setopt (h->c, CURLOPT_PROXYUSERNAME, proxy_user); + if (proxy_password) + curl_easy_setopt (h->c, CURLOPT_PROXYPASSWORD, proxy_password); + if (cookie) + curl_easy_setopt (h->c, CURLOPT_COOKIE, cookie); + + /* Get the file size and also whether the remote HTTP server + * supports byte ranges. + */ + h->accept_range = false; + curl_easy_setopt (h->c, CURLOPT_NOBODY, 1); /* No Body, not nobody! */ + curl_easy_setopt (h->c, CURLOPT_HEADERFUNCTION, header_cb); + curl_easy_setopt (h->c, CURLOPT_HEADERDATA, h); + r = curl_easy_perform (h->c); + if (r != CURLE_OK) { + display_curl_error (h, r, + "problem doing HEAD request to fetch size of URL [%s]", + url); + goto err; + } + + r = curl_easy_getinfo (h->c, CURLINFO_CONTENT_LENGTH_DOWNLOAD, &d); + if (r != CURLE_OK) { + display_curl_error (h, r, "could not get length of remote file [%s]", url); + goto err; + } + + if (d == -1) { + nbdkit_error ("could not get length of remote file [%s], " + "is the URL correct?", url); + goto err; + } + + h->exportsize = (size_t) d; + nbdkit_debug ("content length: %" PRIi64, h->exportsize); + + if (strncasecmp (url, "http://", strlen ("http://")) == 0 || + strncasecmp (url, "https://", strlen ("https://")) == 0) { + if (!h->accept_range) { + nbdkit_error ("server does not support 'range' (byte range) requests"); + goto err; + } + + nbdkit_debug ("accept range supported (for HTTP/HTTPS)"); + } + + /* Get set up for reading and writing. */ + curl_easy_setopt (h->c, CURLOPT_HEADERFUNCTION, NULL); + curl_easy_setopt (h->c, CURLOPT_HEADERDATA, NULL); + curl_easy_setopt (h->c, CURLOPT_WRITEFUNCTION, write_cb); + curl_easy_setopt (h->c, CURLOPT_WRITEDATA, h); + if (!readonly) { + curl_easy_setopt (h->c, CURLOPT_READFUNCTION, read_cb); + curl_easy_setopt (h->c, CURLOPT_READDATA, h); + } + + nbdkit_debug ("returning new handle %p", h); + + return h; + + err: + if (h->c) + curl_easy_cleanup (h->c); + free (h); + return NULL; +} + +static size_t +header_cb (void *ptr, size_t size, size_t nmemb, void *opaque) +{ + struct curl_handle *h = opaque; + size_t realsize = size * nmemb; + size_t len; + const char *accept_line = "Accept-Ranges: bytes"; + const char *line = ptr; + + if (realsize >= strlen (accept_line) && + strncmp (line, accept_line, strlen (accept_line)) == 0) + h->accept_range = true; + + /* Useful to print the server headers when debugging. However we + * must strip off trailing \r?\n from each line. + */ + len = realsize; + if (len > 0 && line[len-1] == '\n') + len--; + if (len > 0 && line[len-1] == '\r') + len--; + if (len > 0) + nbdkit_debug ("S: %.*s", (int) len, line); + + return realsize; +} + +/* Free up the per-connection handle. */ +static void +curl_close (void *handle) +{ + struct curl_handle *h = handle; + + curl_easy_cleanup (h->c); + free (h); +} + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS + +/* Get the file size. */ +static int64_t +curl_get_size (void *handle) +{ + struct curl_handle *h = handle; + + return h->exportsize; +} + +/* Read data from the remote server. */ +static int +curl_pread (void *handle, void *buf, uint32_t count, uint64_t offset) +{ + struct curl_handle *h = handle; + CURLcode r; + char range[128]; + + /* Tell the write_cb where we want the data to be written. write_cb + * will update this if the data comes in multiple sections. + */ + h->write_buf = buf; + h->write_count = count; + + curl_easy_setopt (h->c, CURLOPT_HTTPGET, 1); + + /* Make an HTTP range request. */ + snprintf (range, sizeof range, "%" PRIu64 "-%" PRIu64, + offset, offset + count); + curl_easy_setopt (h->c, CURLOPT_RANGE, range); + + /* The assumption here is that curl will look after timeouts. */ + r = curl_easy_perform (h->c); + if (r != CURLE_OK) { + display_curl_error (h, r, "pread: curl_easy_perform"); + return -1; + } + + /* Could use curl_easy_getinfo here to obtain further information + * about the connection. + */ + + /* As far as I understand the cURL API, this should never happen. */ + assert (h->write_count == 0); + + return 0; +} + +static size_t +write_cb (char *ptr, size_t size, size_t nmemb, void *opaque) +{ + struct curl_handle *h = opaque; + size_t orig_realsize = size * nmemb; + size_t realsize = orig_realsize; + + assert (h->write_buf); + + /* Don't read more than the requested amount of data, even if the + * server or libcurl sends more. + */ + if (realsize > h->write_count) + realsize = h->write_count; + + memcpy (h->write_buf, ptr, realsize); + + h->write_count -= realsize; + h->write_buf += realsize; + + return orig_realsize; +} + +/* Write data to the remote server. */ +static int +curl_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset) +{ + struct curl_handle *h = handle; + CURLcode r; + char range[128]; + + /* Tell the read_cb where we want the data to be read from. read_cb + * will update this if the data comes in multiple sections. + */ + h->read_buf = buf; + h->read_count = count; + + curl_easy_setopt (h->c, CURLOPT_UPLOAD, 1); + + /* Make an HTTP range request. */ + snprintf (range, sizeof range, "%" PRIu64 "-%" PRIu64, + offset, offset + count); + curl_easy_setopt (h->c, CURLOPT_RANGE, range); + + /* The assumption here is that curl will look after timeouts. */ + r = curl_easy_perform (h->c); + if (r != CURLE_OK) { + display_curl_error (h, r, "pwrite: curl_easy_perform"); + return -1; + } + + /* Could use curl_easy_getinfo here to obtain further information + * about the connection. + */ + + /* As far as I understand the cURL API, this should never happen. */ + assert (h->read_count == 0); + + return 0; +} + +static size_t +read_cb (void *ptr, size_t size, size_t nmemb, void *opaque) +{ + struct curl_handle *h = opaque; + size_t realsize = size * nmemb; + + assert (h->read_buf); + if (realsize > h->read_count) + realsize = h->read_count; + + memcpy (ptr, h->read_buf, realsize); + + h->read_count -= realsize; + h->read_buf += realsize; + + return realsize; +} + +static struct nbdkit_plugin plugin = { + .name = "curl", + .version = PACKAGE_VERSION, + .load = curl_load, + .unload = curl_unload, + .config = curl_config, + .config_complete = curl_config_complete, + .config_help = curl_config_help, + .magic_config_key = "url", + .open = curl_open, + .close = curl_close, + .get_size = curl_get_size, + .pread = curl_pread, + .pwrite = curl_pwrite, +}; + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/plugins/curl/nbdkit-curl-plugin.pod b/plugins/curl/nbdkit-curl-plugin.pod new file mode 100644 index 0000000..1c96b4a --- /dev/null +++ b/plugins/curl/nbdkit-curl-plugin.pod @@ -0,0 +1,174 @@ +=head1 NAME + +nbdkit-curl-plugin - nbdkit curl plugin (HTTP, FTP and other protocols) + +=head1 SYNOPSIS + + nbdkit -r curl [url=]http://example.com/disk.img + +=head1 DESCRIPTION + +C is a plugin for L which turns content +served over HTTP, FTP, and more, into a Network Block Device. It uses +a library called libcurl (also known as cURL) to read data from URLs. +The exact list of protocols that libcurl can handle depends on how it +was compiled, but most versions will handle HTTP, HTTPS, FTP, FTPS and +more (see: S>). + +B This plugin supports writes. However for HTTP, you may not +want nbdkit to issue PUT requests to the remote server (which probably +doesn't understand them). To force nbdkit to use a readonly +connection, pass the I<-r> flag. + +Although this plugin can access SFTP (ie. SSH) servers, it is much +better to use L. + +=head1 EXAMPLE + + nbdkit -r curl http://example.com/disk.img + +serves the remote disk image as NBD on TCP port 10809 (to control +ports and protocols used to serve NBD see L). + +=head1 PARAMETERS + +=over 4 + +=item BCOOKIE + +=item BFILENAME + +Set a cookie in the request header when connecting to the remote +server. + +A typical example is: + + cookie='vmware_soap_session="52a01262-bf93-ccce-d379-8dabb3e55560"' + +This option can be used at most once. It only works for HTTP and +HTTPS transports. To set multiple cookies you must concatenate them +yourself, eg: + + cookie='name1=content1; name2=content2;' + +See L for more information about this. + +If the cookie is used for authentication then passing it on the +command line is not secure on shared machines. Use the alternate +C<+FILENAME> syntax to pass it in a file. + +=item BPASSWORD + +Set the password to use when connecting to the remote server. + +Note that passing this on the command line is not secure on shared +machines. + +=item B + +Ask for the password (interactively) when nbdkit starts up. + +=item BFILENAME + +Read the password from the named file. This is the most secure method +to supply a password, as long as you set the permissions on the file +appropriately. + +=item BPROTO,PROTO,... + +Limit the protocols that are allowed in the URL. Use this option for +extra security if the URL comes from an untrusted source and you want +to avoid security isues in the more obscure protocols that curl +supports. (See qemu CVE-2013-0249 for an example of a security bug +introduced by allowing unrestricted protocols). + +For example if you only intend HTTP and HTTPS URLs to be used, then +add this parameter: C + +The value of this parameter is a comma-separated list of protocols. +The following protocols are known: B, B, B, B, +B, B, B, B, B, B, B, +B, B, B, B, B, B, B, +B, B, B, B, B, B, B, +B, B, B. + +The default is to allow any protocol. + +=item BPASSWORD + +=item B + +=item BFILENAME + +=item BUSERNAME + +Set the proxy username and password. + +=item B + +Don't verify the SSL certificate of the remote host. + +=item BSECS + +Set the timeout for requests. + +=item B + +Use the default libcurl timeout for requests. + +=item BPATH + +Instead of using a TCP connection, connect to the server over the +named Unix domain socket. See +L. + +=item [B]URL + +The URL of the remote disk image. This is passed to libcurl directly +via L. + +This parameter is required. + +C is a magic config key and may be omitted in most cases. +See L. + +=item BUSERNAME + +Set the username to use when connecting to the remote server. This +may also be set in the URL (eg. C) + +=back + +=head1 DEBUG FLAG + +=over 4 + +=item B<-D curl.verbose=1> + +This enables very verbose curl debugging. See L. +This is mainly useful if you suspect there is a bug inside libcurl +itself. + +=back + +=head1 SEE ALSO + +L, +L, +L +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +Parts derived from Alexander Graf's "QEMU Block driver for CURL images". + +=head1 COPYRIGHT + +Copyright (C) 2014 Red Hat Inc. diff --git a/plugins/data/Makefile.am b/plugins/data/Makefile.am new file mode 100644 index 0000000..022fdbc --- /dev/null +++ b/plugins/data/Makefile.am @@ -0,0 +1,68 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = \ + disk2data.pl \ + nbdkit-data-plugin.pod + +plugin_LTLIBRARIES = nbdkit-data-plugin.la + +nbdkit_data_plugin_la_SOURCES = \ + data.c \ + $(top_srcdir)/include/nbdkit-plugin.h + +nbdkit_data_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/common/sparse +nbdkit_data_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) \ + $(GNUTLS_CFLAGS) +nbdkit_data_plugin_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms +nbdkit_data_plugin_la_LIBADD = \ + $(top_builddir)/common/sparse/libsparse.la \ + $(GNUTLS_LIBS) + +if HAVE_POD + +man_MANS = nbdkit-data-plugin.1 +CLEANFILES += $(man_MANS) + +nbdkit-data-plugin.1: nbdkit-data-plugin.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/plugins/data/Makefile.in b/plugins/data/Makefile.in new file mode 100644 index 0000000..60c8491 --- /dev/null +++ b/plugins/data/Makefile.in @@ -0,0 +1,892 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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uninstall-pluginLTLIBRARIES + +.PRECIOUS: Makefile + + +@HAVE_POD_TRUE@nbdkit-data-plugin.1: nbdkit-data-plugin.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/plugins/data/data.c b/plugins/data/data.c new file mode 100644 index 0000000..4f872ce --- /dev/null +++ b/plugins/data/data.c @@ -0,0 +1,416 @@ +/* nbdkit + * Copyright (C) 2018-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include + +#include + +#if defined(HAVE_GNUTLS) && defined(HAVE_GNUTLS_BASE64_DECODE2) +#include +#endif + +#include + +#include "sparse.h" + +/* If raw|base64|data parameter seen. */ +static int data_seen = 0; + +/* size= parameter on the command line, -1 if not set. */ +static int64_t size = -1; + +/* Size of data specified on the command line. */ +static int64_t data_size = -1; + +/* Sparse array - the lock must be held when accessing this from + * connected callbacks. + */ +static struct sparse_array *sa; +static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; + +/* Debug directory operations (-D data.dir=1). */ +int data_debug_dir; + +static void +data_load (void) +{ + sa = alloc_sparse_array (data_debug_dir); + if (sa == NULL) { + perror ("malloc"); + exit (EXIT_FAILURE); + } +} + +/* On unload, free the sparse array. */ +static void +data_unload (void) +{ + free_sparse_array (sa); +} + +/* Parse the base64 parameter. */ +static int +read_base64 (const char *value) +{ +#if defined(HAVE_GNUTLS) && defined(HAVE_GNUTLS_BASE64_DECODE2) + gnutls_datum_t in, out; + int err; + + in.data = (unsigned char *) value; + in.size = strlen (value); + err = gnutls_base64_decode2 (&in, &out); + if (err != GNUTLS_E_SUCCESS) { + nbdkit_error ("base64: %s", gnutls_strerror (err)); + return -1; + } + + if (sparse_array_write (sa, out.data, out.size, 0) == -1) + return -1; + free (out.data); + return 0; +#else + nbdkit_error ("base64 is not supported in this build of the plugin"); + return -1; +#endif +} + +/* Store file at current offset in the sparse array, updating + * the offset. + */ +static int +store_file (const char *filename, int64_t *offset) +{ + FILE *fp; + char buf[BUFSIZ]; + size_t n; + + fp = fopen (filename, "r"); + if (fp == NULL) { + nbdkit_error ("%s: %m", filename); + return -1; + } + + while (!feof (fp)) { + n = fread (buf, 1, BUFSIZ, fp); + if (n > 0) { + if (sparse_array_write (sa, buf, n, *offset) == -1) { + fclose (fp); + return -1; + } + } + if (ferror (fp)) { + nbdkit_error ("fread: %s: %m", filename); + fclose (fp); + return -1; + } + (*offset) += n; + } + + if (fclose (fp) == EOF) { + nbdkit_error ("fclose: %s: %m", filename); + return -1; + } + + return 0; +} + +/* Parse the data parameter. */ +static int +read_data (const char *value) +{ + int64_t offset = 0; + size_t i, len = strlen (value); + + for (i = 0; i < len; ++i) { + int64_t j; + int n; + char c, cc[2]; + + if (sscanf (&value[i], " @%" SCNi64 "%n", &j, &n) == 1) { + if (j < 0) { + nbdkit_error ("data parameter @OFFSET must not be negative"); + return -1; + } + i += n; + offset = j; + } + /* We need %1s for obscure reasons. sscanf " <%n" can return 0 + * if nothing is matched, not only if the '<' is matched. + */ + else if (sscanf (&value[i], " <%1s%n", cc, &n) == 1) { + char *filename; + size_t flen; + + i += n-1; + + /* The filename follows next in the string. */ + flen = strcspn (&value[i], " \t\n"); + if (flen == 0) { + nbdkit_error ("data parameter 255) { + nbdkit_error ("data parameter BYTE must be in the range 0..255"); + return -1; + } + i += n; + + if (data_size < offset+1) + data_size = offset+1; + + /* Store the byte. */ + c = j; + if (sparse_array_write (sa, &c, 1, offset) == -1) + return -1; + offset++; + } + /* We have to have a rule to skip just whitespace so that + * whitespace is permitted at the end of the string. + */ + else if (sscanf (&value[i], " %n", &n) == 0) { + i += n; + } + else { + nbdkit_error ("data parameter: parsing error at offset %zu", i); + return -1; + } + } + + return 0; +} + +static int +data_config (const char *key, const char *value) +{ + int64_t r; + + if (strcmp (key, "size") == 0) { + r = nbdkit_parse_size (value); + if (r == -1) + return -1; + size = r; + } + else if (strcmp (key, "raw") == 0 || + strcmp (key, "base64") == 0 || + strcmp (key, "data") == 0) { + if (data_seen) { + nbdkit_error ("raw|base64|data parameter must be specified exactly once"); + return -1; + } + data_seen = 1; + + if (strcmp (key, "raw") == 0) { + data_size = strlen (value); + if (sparse_array_write (sa, value, data_size, 0) == -1) + return -1; + } + else if (strcmp (key, "base64") == 0) { + if (read_base64 (value) == -1) + return -1; + } + else if (strcmp (key, "data") == 0) { + if (read_data (value) == -1) + return -1; + } + else + abort (); /* cannot happen */ + } + else { + nbdkit_error ("unknown parameter '%s'", key); + return -1; + } + + return 0; +} + +/* Check the raw|base64|data was specified, and set the final size. */ +static int +data_config_complete (void) +{ + if (!data_seen) { + nbdkit_error ("raw|base64|data parameter was not specified"); + return -1; + } + + nbdkit_debug ("implicit data size: %" PRIi64, data_size); + + /* If size == -1 it means the size= parameter was not given so we + * must use the data size. + */ + if (size == -1) + size = data_size; + nbdkit_debug ("final size: %" PRIi64, size); + + return 0; +} + +#define data_config_help \ + "data|raw|base64=... Specify disk data on the command line\n" \ + "size= (required) Size of the backing disk" + +/* Provide a way to detect if the base64 feature is supported. */ +static void +data_dump_plugin (void) +{ +#if defined(HAVE_GNUTLS) && defined(HAVE_GNUTLS_BASE64_DECODE2) + printf ("data_base64=yes\n"); +#endif +} + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + +/* No meaning, just used as the address for the handle. */ +static int dh; + +/* Create the per-connection handle. */ +static void * +data_open (int readonly) +{ + return &dh; +} + +/* Get the disk size. */ +static int64_t +data_get_size (void *handle) +{ + return size; +} + +/* Serves the same data over multiple connections. */ +static int +data_can_multi_conn (void *handle) +{ + return 1; +} + +/* Read data. */ +static int +data_pread (void *handle, void *buf, uint32_t count, uint64_t offset) +{ + pthread_mutex_lock (&lock); + sparse_array_read (sa, buf, count, offset); + pthread_mutex_unlock (&lock); + return 0; +} + +/* Write data. */ +static int +data_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset) +{ + int r; + + pthread_mutex_lock (&lock); + r = sparse_array_write (sa, buf, count, offset); + pthread_mutex_unlock (&lock); + return r; +} + +/* Zero. */ +static int +data_zero (void *handle, uint32_t count, uint64_t offset, int may_trim) +{ + pthread_mutex_lock (&lock); + sparse_array_zero (sa, count, offset); + pthread_mutex_unlock (&lock); + return 0; +} + +/* Trim (same as zero). */ +static int +data_trim (void *handle, uint32_t count, uint64_t offset) +{ + pthread_mutex_lock (&lock); + sparse_array_zero (sa, count, offset); + pthread_mutex_unlock (&lock); + return 0; +} + +/* Extents. */ +static int +data_extents (void *handle, uint32_t count, uint64_t offset, + uint32_t flags, struct nbdkit_extents *extents) +{ + int r; + + pthread_mutex_lock (&lock); + r = sparse_array_extents (sa, count, offset, extents); + pthread_mutex_unlock (&lock); + return r; +} + +static struct nbdkit_plugin plugin = { + .name = "data", + .version = PACKAGE_VERSION, + .load = data_load, + .unload = data_unload, + .config = data_config, + .config_complete = data_config_complete, + .config_help = data_config_help, + .dump_plugin = data_dump_plugin, + .open = data_open, + .get_size = data_get_size, + .can_multi_conn = data_can_multi_conn, + .pread = data_pread, + .pwrite = data_pwrite, + .zero = data_zero, + .trim = data_trim, + .extents = data_extents, + /* In this plugin, errno is preserved properly along error return + * paths from failed system calls. + */ + .errno_is_preserved = 1, +}; + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/plugins/data/disk2data.pl b/plugins/data/disk2data.pl new file mode 100755 index 0000000..0ece486 --- /dev/null +++ b/plugins/data/disk2data.pl @@ -0,0 +1,200 @@ +#!/usr/bin/env perl +# -*- perl -*- +# Convert disk image or file to nbdkit-data-plugin command line. +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +=pod + +=head1 NAME + +disk2data.pl - convert disk image or file to nbdkit-data-plugin command line + +=head1 SYNOPSIS + + ./disk2data.pl DISK + +=head1 EXAMPLE + +=head2 Create a 1 MB MBR-partitioned disk command line + + $ rm -f disk + $ truncate -s 1M disk + $ echo start=1 | sfdisk disk + $ ./disk2data.pl disk + +The above command will print out the full nbdkit command to use, +similar to: + + $ nbdkit data data=" + @0x1b8 202 127 39 107 0 0 0 0 2 0 131 32 32 0 1 0 0 0 255 7 + @0x1fe 85 170 + " size=1048576 + +=head2 Create a 1 GB GPT-partitioned disk command line + + $ rm -f disk + $ truncate -s 1G disk + $ sgdisk -n 1 disk + $ ./disk2data.pl disk + +A command similar to this is printed: + + $ nbdkit data data=" + @0x1c0 2 0 238 138 8 130 1 0 0 0 255 255 31 + @0x1fe 85 170 69 70 73 32 80 65 82 84 0 0 1 0 92 0 0 0 110 92 89 223 + 0 0 0 0 1 @0x220 255 255 31 @0x228 34 + @0x230 222 255 31 @0x238 159 149 54 193 83 188 210 70 172 3 15 147 + 241 183 1 61 2 @0x250 128 0 0 0 128 0 0 0 193 75 104 199 + @0x400 175 61 198 15 131 132 114 71 142 121 61 105 216 71 125 228 237 + 59 243 84 97 170 76 75 179 212 47 233 110 221 119 58 0 8 + @0x428 222 255 31 @0x3fffbe00 175 61 198 15 131 132 114 71 142 121 61 + 105 216 71 125 228 237 59 243 84 97 170 76 75 179 212 47 233 110 221 + 119 58 0 8 @0x3fffbe28 222 255 31 + @0x3ffffe00 69 70 73 32 80 65 82 84 0 0 1 0 92 0 0 0 178 45 163 71 0 + 0 0 0 255 255 31 @0x3ffffe20 1 + @0x3ffffe28 34 @0x3ffffe30 222 255 31 + @0x3ffffe38 159 149 54 193 83 188 210 70 172 3 15 147 241 183 1 61 + 223 255 31 @0x3ffffe50 128 0 0 0 128 0 0 0 193 75 104 199 + " size=1073741824 + +=head1 DESCRIPTION + +C is a simple script which converts a disk image or file +to the C format used by L. + +Most operating systems have command line size limits which are quite a +lot smaller than any desirable disk image, so specifying a large, +fully populated disk image on the command line is not be possible. +You can only use this with small or very sparse disk images. + +=head1 SEE ALSO + +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. + +=cut + +use strict; + +die "$0: expecting a single disk image parameter\n" unless @ARGV == 1; + +my $disk = $ARGV[0]; +my $size = (stat ($disk))[7]; + +open FH, $disk or die "$0: $disk: $!\n"; + +print "nbdkit data data=\"\n "; +my $col = 2; + +my $offset = 0; +my $c; + +while ($offset < $size) { + my $old_offset = $offset; + my $r; + + # Find the next non-zero data. + while ($r = read FH, $c, 1) { + $offset++; + last unless $c eq "\0"; + } + die "$0: $disk: read: $!" unless defined $r; + + # End of the file? + last if $r == 0; + + # Go back one character to unconsume the !\0. + seek FH, -1, 1; + $offset--; + + # Did we move forwards in that loop? If so we must emit a new + # offset. But if we only moved forward a few bytes then emitting + # zeroes is more efficient. + my $d = $offset - $old_offset; + if ($d <= 4) { + for (my $i = 0; $i < $d; ++$i) { + emit ("0"); + } + } + else { + emit (sprintf ('@0x%x', $offset)); + } + + # Emit non-zero data. + while ($r = read FH, $c, 1) { + $offset++; + last if $c eq "\0"; + emit (sprintf ("%d", ord ($c))); + } + die "$0: $disk: read: $!" unless defined $r; + + # End of the file? + last if $r == 0; + + # Go back one character to unconsume the \0. + seek FH, -1, 1; + $offset--; +} + +if ($col > 2) { + print "\n "; +} +# It would be possible to be smarter about when to print the size, but +# it's safest and simplest to always print it. +print "\" size=$size\n"; + +sub emit +{ + my $s = shift; + my $is_offset = substr ($s, 0, 1) eq "@"; + my $n = length $s; + + # This means we prefer to start an offset on a new line if the + # line is already over half way across. + my $limit; + if ($is_offset) { $limit = 40 } else { $limit = 72 } + + if ($col + $n + 1 > $limit) { + print "\n "; + $col = 2; + } + + print $s, " "; + $col += $n + 1; +} diff --git a/plugins/data/nbdkit-data-plugin.pod b/plugins/data/nbdkit-data-plugin.pod new file mode 100644 index 0000000..b0957ad --- /dev/null +++ b/plugins/data/nbdkit-data-plugin.pod @@ -0,0 +1,253 @@ +=head1 NAME + +nbdkit-data-plugin - nbdkit plugin for serving data from the command line + +=head1 SYNOPSIS + + nbdkit data data="0 1 2 3 @0x1fe 0x55 0xaa" [size=size] + + nbdkit data base64="aGVsbG8gbmJka2l0IHVzZXI=" [size=size] + + nbdkit data raw="binary_data" [size=size] + +=head1 DESCRIPTION + +C is a plugin for L which serves a +small amount of data specified directly on the command line. The +plugin gets its name from the C URI scheme used by web +browsers. This is mainly useful for testing NBD clients. + +You can serve data read-only using the I<-r> flag, or read-write. Any +writes are thrown away when nbdkit exits. + +Most operating systems have command line size limits which are quite a +lot smaller than any desirable disk image, so specifying a large, +fully populated disk image on the command line would not be possible. +However you can specify a small amount of data at the beginning of the +image, possibly followed by zeroes (using the C parameter to pad +the image to the full size), or use the C parameter creatively +to make mostly sparse disk images. + +The C parameter can specify any virtual size up to the maximum +supported by nbdkit (S<2⁶³-1 bytes>). + +=head1 EXAMPLES + +=over 4 + +=item Create a 1 MB empty disk: + + nbdkit data raw= size=1M + +(This is a contrived example, it is better to use +L for real applications.) + +=item Create a 1 MB disk with some nonsense data at the beginning: + + nbdkit data base64=MTIz size=1M + +The above command serves the bytes C<0x31 0x32 0x33> (which is the +base64 decoding of C), followed by S<1M - 3 bytes> of zeroes. + +=item Create a 1 MB disk with one empty MBR-formatted partition: + + nbdkit data data=" + @0x1b8 178 190 207 221 0 0 0 0 2 0 131 32 32 0 1 0 0 0 255 7 + @0x1fe 85 170 + " size=1048576 + +This example was created by running: + + $ rm -f disk + $ truncate -s 1M disk + $ echo start=1 | sfdisk disk + Device Boot Start End Sectors Size Id Type + disk1 1 2047 2047 1023.5K 83 Linux + $ ./disk2data.pl disk + +The C script is provided in the nbdkit sources +(L). + +=item Create a disk with a partition from another file: + + nbdkit data data=" + @0x1b8 178 190 207 221 0 0 0 0 2 0 131 32 32 0 1 0 0 0 255 7 + @0x1fe 85 170 + @0x200 FILE> syntax is used to include a file of binary data. +Note that L is easier to use and more +flexible. + +=item Create a 7 EB (exabyte) disk with one empty GPT-formatted partition: + +The data plugin supports huge sparse virtual disks, up to the maximum +size supported by nbdkit itself (S<2⁶³-1 bytes> = +S<8 exabytes - 1 byte>). These cause all sorts of problems for +software and so make excellent test cases. To partition such a huge +disk requires the GPT (GUID Partition Table) format since MBR is +limited to just 2 TB. + + nbdkit data data=" + @0x1c0 2 0 0xee 0xfe 0xff 0xff 0x01 0 0 0 0xff 0xff 0xff 0xff + @0x1fe 0x55 0xaa + @0x200 0x45 0x46 0x49 0x20 0x50 0x41 0x52 0x54 + 0 0 1 0 0x5c 0 0 0 + 0x9b 0xe5 0x6a 0xc5 0 0 0 0 1 0 0 0 0 0 0 0 + 0xff 0xff 0xff 0xff 0xff 0xff 0x37 0 0x22 0 0 0 0 0 0 0 + 0xde 0xff 0xff 0xff 0xff 0xff 0x37 0 + 0x72 0xb6 0x9e 0x0c 0x6b 0x76 0xb0 0x4f + 0xb3 0x94 0xb2 0xf1 0x61 0xec 0xdd 0x3c 2 0 0 0 0 0 0 0 + 0x80 0 0 0 0x80 0 0 0 0x79 0x8a 0xd0 0x7e 0 0 0 0 + @0x400 0xaf 0x3d 0xc6 0x0f 0x83 0x84 0x72 0x47 + 0x8e 0x79 0x3d 0x69 0xd8 0x47 0x7d 0xe4 + 0xd5 0x19 0x46 0x95 0xe3 0x82 0xa8 0x4c + 0x95 0x82 0x7a 0xbe 0x1c 0xfc 0x62 0x90 + 0x80 0 0 0 0 0 0 0 0x80 0xff 0xff 0xff 0xff 0xff 0x37 0 + 0 0 0 0 0 0 0 0 0x70 0 0x31 0 0 0 0 0 + @0x6fffffffffffbe00 + 0xaf 0x3d 0xc6 0x0f 0x83 0x84 0x72 0x47 + 0x8e 0x79 0x3d 0x69 0xd8 0x47 0x7d 0xe4 + 0xd5 0x19 0x46 0x95 0xe3 0x82 0xa8 0x4c + 0x95 0x82 0x7a 0xbe 0x1c 0xfc 0x62 0x90 + 0x80 0 0 0 0 0 0 0 0x80 0xff 0xff 0xff 0xff 0xff 0x37 0 + 0 0 0 0 0 0 0 0 0x70 0 0x31 0 0 0 0 0 + @0x6ffffffffffffe00 + 0x45 0x46 0x49 0x20 0x50 0x41 0x52 0x54 + 0 0 1 0 0x5c 0 0 0 + 0x6c 0x76 0xa1 0xa0 0 0 0 0 + 0xff 0xff 0xff 0xff 0xff 0xff 0x37 0 + 1 0 0 0 0 0 0 0 0x22 0 0 0 0 0 0 0 + 0xde 0xff 0xff 0xff 0xff 0xff 0x37 0 + 0x72 0xb6 0x9e 0x0c 0x6b 0x76 0xb0 0x4f + 0xb3 0x94 0xb2 0xf1 0x61 0xec 0xdd 0x3c + 0xdf 0xff 0xff 0xff 0xff 0xff 0x37 0 + 0x80 0 0 0 0x80 0 0 0 0x79 0x8a 0xd0 0x7e 0 0 0 0 + " size=7E + +=back + +=head1 PARAMETERS + +Exactly one of the C, C or C parameters must be +supplied. + +=over 4 + +=item BDATA + +Specify the disk data using a simple compact format. See +L below. + +=item BBASE64 + +The C parameter can be used to supply binary data encoded in +base64 on the command line. + +This is only supported if nbdkit was compiled with GnuTLS E 3.6.0. +You can find out by checking if: + + $ nbdkit data --dump-plugin + +contains: + + data_base64=yes + +=item BBINARY + +The C parameter can be used to supply raw binary data directly on +the command line. + +It is usually quite difficult to do this unless you are running nbdkit +from another program (see L). One particular +problem is that the data must not contain zero bytes (ie. C<\0>) since +those will be processed in C to mean the end of the string. In almost +all cases it is better to use base64 encoding or the custom C +format. + +=item BSIZE + +The data is truncated or extended to the size specified. + +This parameter is optional: If omitted the size is defined by the size +of the C, C or C parameter. + +=back + +=head1 DATA FORMAT + +The C parameter lets you specify small disk images in a simple, +compact format. It is a string containing a list of bytes which are +written into the disk image sequentially. You can move the virtual +offset where bytes are written using C<@offset>. + +For example: + + nbdkit data data="0 1 2 3 @0x1fe 0x55 0xaa" + +creates a 0x200 = 512 byte (1 sector) image containing the four bytes +C<0 1 2 3> at the start, and the two bytes C<0x55 0xaa> at the end of +the sector, with the remaining 506 bytes in the middle being all +zeroes. + +Fields in the string can be: + +=over 4 + +=item B<@>OFFSET + +Moves the current offset to C. The offset may be specified as +either decimal, octal (prefixed by C<0>) or hexadecimal (prefixed by +C<0x>). + +=item B>FILE + +Read the contents of F into the disk image at the current +offset. The offset is incremented by the size of the file. The +filename can be a relative or absolute path, but cannot contain +whitespace in the name. + +=item BYTE + +Write C at the current offset and advance the offset by 1 byte. +The byte may be specified as either decimal, octal (prefixed by C<0>) +or hexadecimal (prefixed by C<0x>). + +=back + +Whitespace between fields in the string is ignored. + +In the example above the size (512 bytes) is implied by the data. But +you could additionally use the C parameter to either truncate or +extend (with zeroes) the disk image. + +=head2 disk2data.pl script + +This script can convert from small disk images into the data format +described above. + +It is provided in the nbdkit sources. See +L + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/plugins/example1/Makefile.am b/plugins/example1/Makefile.am new file mode 100644 index 0000000..187e6ce --- /dev/null +++ b/plugins/example1/Makefile.am @@ -0,0 +1,60 @@ +# nbdkit +# Copyright (C) 2013 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-example1-plugin.pod + +plugin_LTLIBRARIES = nbdkit-example1-plugin.la + +nbdkit_example1_plugin_la_SOURCES = \ + example1.c \ + $(top_srcdir)/include/nbdkit-plugin.h + +nbdkit_example1_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/include +nbdkit_example1_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_example1_plugin_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms + +if HAVE_POD + +man_MANS = nbdkit-example1-plugin.1 +CLEANFILES += $(man_MANS) + +nbdkit-example1-plugin.1: nbdkit-example1-plugin.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/plugins/example1/Makefile.in b/plugins/example1/Makefile.in new file mode 100644 index 0000000..6fd8bd2 --- /dev/null +++ b/plugins/example1/Makefile.in @@ -0,0 +1,882 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2013 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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+ + +@HAVE_POD_TRUE@nbdkit-example1-plugin.1: nbdkit-example1-plugin.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/plugins/example1/example1.c b/plugins/example1/example1.c new file mode 100644 index 0000000..d77d609 --- /dev/null +++ b/plugins/example1/example1.c @@ -0,0 +1,171 @@ +/* nbdkit + * Copyright (C) 2013 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* example1: + * + * This is (almost) the most minimal nbdkit plugin possible. It + * serves, readonly, from memory, a static blob of data. + */ + +#include + +#include +#include +#include + +#include + +/* This looks like a 100MB disk with one empty partition. */ +static unsigned char bootsector[512] = { + 0xfa, 0xb8, 0x00, 0x10, 0x8e, 0xd0, 0xbc, 0x00, + 0xb0, 0xb8, 0x00, 0x00, 0x8e, 0xd8, 0x8e, 0xc0, + 0xfb, 0xbe, 0x00, 0x7c, 0xbf, 0x00, 0x06, 0xb9, + 0x00, 0x02, 0xf3, 0xa4, 0xea, 0x21, 0x06, 0x00, + 0x00, 0xbe, 0xbe, 0x07, 0x38, 0x04, 0x75, 0x0b, + 0x83, 0xc6, 0x10, 0x81, 0xfe, 0xfe, 0x07, 0x75, + 0xf3, 0xeb, 0x16, 0xb4, 0x02, 0xb0, 0x01, 0xbb, + 0x00, 0x7c, 0xb2, 0x80, 0x8a, 0x74, 0x01, 0x8b, + 0x4c, 0x02, 0xcd, 0x13, 0xea, 0x00, 0x7c, 0x00, + 0x00, 0xeb, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0xe1, 0x5b, 0x02, 0x00, 0x00, 0x00, 0x00, 0x02, + 0x03, 0x00, 0x83, 0xbc, 0x31, 0x0c, 0x80, 0x00, + 0x00, 0x00, 0x01, 0x1f, 0x03, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0xaa +}; +static unsigned char data[104857600]; + +/* A '.load' callback is not generally required, but in this case we + * need to initialize the 'data' array once when the plugin is loaded + * into nbdkit. + */ +static void +example1_load (void) +{ + memcpy (data, bootsector, sizeof bootsector); +} + +/* Because this plugin can only serve readonly, we can ignore the + * 'readonly' parameter. + */ +static void * +example1_open (int readonly) +{ + /* In this trivial example we don't care about per-connection + * handles because every connection serves up the same content and + * there is no connection state. + */ + return NBDKIT_HANDLE_NOT_NEEDED; +} + +/* Size of the data we are going to serve. */ +static int64_t +example1_get_size (void *handle) +{ + return (int64_t) sizeof (data); +} + +/* In fact NBDKIT_THREAD_MODEL_PARALLEL would work here. However for + * the benefit of people who blindly cut and paste code without + * bothering to read any documentation, leave this at a safe default. + */ +#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS + +/* Copy the static data at offset to the buffer. Note that nbdkit + * takes care of bounds- and sanity-checking the request. + */ +static int +example1_pread (void *handle, void *buf, uint32_t count, uint64_t offset) +{ + memcpy (buf, data+offset, count); + return 0; /* 0 = success, -1 = error */ +} + +static struct nbdkit_plugin plugin = { + .name = "example1", + .version = PACKAGE_VERSION, + .load = example1_load, + .open = example1_open, + .get_size = example1_get_size, + .pread = example1_pread, +}; + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/plugins/example1/nbdkit-example1-plugin.pod b/plugins/example1/nbdkit-example1-plugin.pod new file mode 100644 index 0000000..b2e9f3b --- /dev/null +++ b/plugins/example1/nbdkit-example1-plugin.pod @@ -0,0 +1,32 @@ +=head1 NAME + +nbdkit-example1-plugin - minimal nbdkit plugin + +=head1 SYNOPSIS + + nbdkit example1 + +=head1 DESCRIPTION + +C is a minimal L plugin. + +It serves, readonly, from memory, a static blob of data which looks a +little bit like a 100 MB disk image that contains a single empty +partition. + +Mainly this is useful for testing nbdkit and as an example for writing +nbdkit plugins (L). + +=head1 SEE ALSO + +L, +L, +L + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2013 Red Hat Inc. diff --git a/plugins/example2/Makefile.am b/plugins/example2/Makefile.am new file mode 100644 index 0000000..fde7c38 --- /dev/null +++ b/plugins/example2/Makefile.am @@ -0,0 +1,60 @@ +# nbdkit +# Copyright (C) 2013 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-example2-plugin.pod + +plugin_LTLIBRARIES = nbdkit-example2-plugin.la + +nbdkit_example2_plugin_la_SOURCES = \ + example2.c \ + $(top_srcdir)/include/nbdkit-plugin.h + +nbdkit_example2_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/include +nbdkit_example2_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_example2_plugin_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms + +if HAVE_POD + +man_MANS = nbdkit-example2-plugin.1 +CLEANFILES += $(man_MANS) + +nbdkit-example2-plugin.1: nbdkit-example2-plugin.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/plugins/example2/Makefile.in b/plugins/example2/Makefile.in new file mode 100644 index 0000000..0165281 --- /dev/null +++ b/plugins/example2/Makefile.in @@ -0,0 +1,882 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2013 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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+ + +@HAVE_POD_TRUE@nbdkit-example2-plugin.1: nbdkit-example2-plugin.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/plugins/example2/example2.c b/plugins/example2/example2.c new file mode 100644 index 0000000..d0bce15 --- /dev/null +++ b/plugins/example2/example2.c @@ -0,0 +1,233 @@ +/* nbdkit + * Copyright (C) 2013 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* example2: + * + * A simple but more realistic read-only file server. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#ifndef O_CLOEXEC +#define O_CLOEXEC 0 +#endif + +static char *filename = NULL; + +/* A debug flag which can be set on the command line using + * '-D example2.extra=1' to enable very verbose debugging to help + * developers. Use the debug flags for extra debugging which would + * only be useful for the original developers of the plugin. For + * ordinary debugging, just use nbdkit_debug and enable messages with + * the -v flag on the command line. + */ +int example2_debug_extra = 0; + +static void +example2_unload (void) +{ + free (filename); +} + +/* If you want to display extra information about the plugin when + * the user does ‘nbdkit example2 --dump-plugin’ then you can print + * ‘key=value’ lines here. + */ +static void +example2_dump_plugin (void) +{ + printf ("example2_extra=hello\n"); +} + +/* Called for each key=value passed on the command line. This plugin + * only accepts file=, which is required. + */ +static int +example2_config (const char *key, const char *value) +{ + if (strcmp (key, "file") == 0) { + /* See FILENAMES AND PATHS in nbdkit-plugin(3). */ + filename = nbdkit_realpath (value); + if (!filename) + return -1; + } + else { + nbdkit_error ("unknown parameter '%s'", key); + return -1; + } + + return 0; +} + +/* Check the user did pass a file= parameter. */ +static int +example2_config_complete (void) +{ + if (filename == NULL) { + nbdkit_error ("you must supply the file= parameter " + "after the plugin name on the command line"); + return -1; + } + + return 0; +} + +#define example2_config_help \ + "file= (required) The filename to serve." + +/* The per-connection handle. */ +struct example2_handle { + int fd; +}; + +/* Create the per-connection handle. + * + * Because this plugin can only serve readonly, we can ignore the + * 'readonly' parameter. + */ +static void * +example2_open (int readonly) +{ + struct example2_handle *h; + + h = malloc (sizeof *h); + if (h == NULL) { + nbdkit_error ("malloc: %m"); + return NULL; + } + + h->fd = open (filename, O_RDONLY|O_CLOEXEC); + if (h->fd == -1) { + nbdkit_error ("open: %s: %m", filename); + free (h); + return NULL; + } + + return h; +} + +/* Free up the per-connection handle. */ +static void +example2_close (void *handle) +{ + struct example2_handle *h = handle; + + close (h->fd); + free (h); +} + +/* In fact NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS would work here. + * However for the benefit of people who blindly cut and paste code + * without bothering to read any documentation, leave this at a safe + * default. + */ +#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS + +/* Get the file size. */ +static int64_t +example2_get_size (void *handle) +{ + struct example2_handle *h = handle; + struct stat statbuf; + + if (fstat (h->fd, &statbuf) == -1) { + nbdkit_error ("stat: %m"); + return -1; + } + + /* Use the debug flags for extra debugging which would only be + * useful for the original developers of the plugin. For ordinary + * debugging, just use nbdkit_debug and enable messages with the -v + * flag on the command line. This is a contrived example of how to + * use debug flags. + */ + if (example2_debug_extra) + nbdkit_debug ("extra debugging: statbuf.st_size = %jd\n", + (intmax_t)statbuf.st_size); + + return statbuf.st_size; +} + +/* Read data from the file. */ +static int +example2_pread (void *handle, void *buf, uint32_t count, uint64_t offset) +{ + struct example2_handle *h = handle; + + while (count > 0) { + ssize_t r = pread (h->fd, buf, count, offset); + if (r == -1) { + nbdkit_error ("pread: %m"); + return -1; + } + if (r == 0) { + nbdkit_error ("pread: unexpected end of file"); + return -1; + } + buf += r; + count -= r; + offset += r; + } + + return 0; +} + +static struct nbdkit_plugin plugin = { + .name = "example2", + .version = PACKAGE_VERSION, + .unload = example2_unload, + .dump_plugin = example2_dump_plugin, + .config = example2_config, + .config_complete = example2_config_complete, + .config_help = example2_config_help, + .open = example2_open, + .close = example2_close, + .get_size = example2_get_size, + .pread = example2_pread, + /* In this plugin, errno is preserved properly along error return + * paths from failed system calls. + */ + .errno_is_preserved = 1, +}; + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/plugins/example2/nbdkit-example2-plugin.pod b/plugins/example2/nbdkit-example2-plugin.pod new file mode 100644 index 0000000..88b6bff --- /dev/null +++ b/plugins/example2/nbdkit-example2-plugin.pod @@ -0,0 +1,35 @@ +=head1 NAME + +nbdkit-example2-plugin - example nbdkit plugin + +=head1 SYNOPSIS + + nbdkit example2 file=FILENAME + +=head1 DESCRIPTION + +C is an example L plugin. + +It serves the named C over NBD, readonly. + +Mainly this is useful for testing nbdkit and as an example for writing +nbdkit plugins (L). + +=head1 DEBUG FLAGS + +For extra debugging (only useful for developers) use +I<-D example2.extra=1> + +=head1 SEE ALSO + +L, +L, +L + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2013 Red Hat Inc. diff --git a/plugins/example3/Makefile.am b/plugins/example3/Makefile.am new file mode 100644 index 0000000..e988abe --- /dev/null +++ b/plugins/example3/Makefile.am @@ -0,0 +1,60 @@ +# nbdkit +# Copyright (C) 2013 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-example3-plugin.pod + +plugin_LTLIBRARIES = nbdkit-example3-plugin.la + +nbdkit_example3_plugin_la_SOURCES = \ + example3.c \ + $(top_srcdir)/include/nbdkit-plugin.h + +nbdkit_example3_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/include +nbdkit_example3_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_example3_plugin_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms + +if HAVE_POD + +man_MANS = nbdkit-example3-plugin.1 +CLEANFILES += $(man_MANS) + +nbdkit-example3-plugin.1: nbdkit-example3-plugin.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/plugins/example3/Makefile.in b/plugins/example3/Makefile.in new file mode 100644 index 0000000..e9430e6 --- /dev/null +++ b/plugins/example3/Makefile.in @@ -0,0 +1,882 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2013 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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+ + +@HAVE_POD_TRUE@nbdkit-example3-plugin.1: nbdkit-example3-plugin.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/plugins/example3/example3.c b/plugins/example3/example3.c new file mode 100644 index 0000000..5d2b626 --- /dev/null +++ b/plugins/example3/example3.c @@ -0,0 +1,237 @@ +/* nbdkit + * Copyright (C) 2013 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* example3: + * + * A simple read-write filesystem which stores all changes in + * a temporary file that is thrown away after each connection. + */ + +#include + +#include +#include +#include +#include +#include +#include + +#include + +#ifndef HAVE_FDATASYNC +#define fdatasync fsync +#endif + +/* The size of disk in bytes (initialized by size= parameter). + * If size parameter is not specified, it defaults to 100M. + */ +static uint64_t size = 100 * 1024 * 1024; + +/* If you want to display extra information about the plugin when + * the user does ‘nbdkit example3 --dump-plugin’ then you can print + * ‘key=value’ lines here. + */ +static void +example3_dump_plugin (void) +{ + printf ("example3_extra=hello\n"); +} + +/* Called for each key=value passed on the command line. This plugin + * only accepts optional size= parameter. + */ +static int +example3_config (const char *key, const char *value) +{ + int64_t r; + + if (strcmp (key, "size") == 0) { + r = nbdkit_parse_size (value); + if (r == -1) + return -1; + size = (uint64_t) r; + } + else { + nbdkit_error ("unknown parameter '%s'", key); + return -1; + } + + return 0; +} + +#define example3_config_help \ + "size= (optional) Size of the backing disk (default: 100M)" + +/* The per-connection handle. */ +struct example3_handle { + int fd; +}; + +/* Create the per-connection handle. + * + * Note we ignore the 'readonly' parameter. In effect this means that + * we ignore the -r option on the nbdkit command line, which sort of + * makes sense for this particular plugin. + */ +static void * +example3_open (int readonly) +{ + struct example3_handle *h; + char template[] = LARGE_TMPDIR "/diskXXXXXX"; + + h = malloc (sizeof *h); + if (h == NULL) { + nbdkit_error ("malloc: %m"); + return NULL; + } + + h->fd = mkstemp (template); + if (h->fd == -1) { + nbdkit_error ("mkstemp: %s: %m", template); + free (h); + return NULL; + } + + unlink (template); + + /* This creates a raw-format sparse file of the required size. */ + if (ftruncate (h->fd, size) == -1) { + nbdkit_error ("ftruncate: %m"); + close (h->fd); + free (h); + return NULL; + } + + return h; +} + +/* Free up the per-connection handle. */ +static void +example3_close (void *handle) +{ + struct example3_handle *h = handle; + + close (h->fd); + free (h); +} + +/* In fact NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS would work here. + * However for the benefit of people who blindly cut and paste code + * without bothering to read any documentation, leave this at a safe + * default. + */ +#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS + +/* Get the file size. */ +static int64_t +example3_get_size (void *handle) +{ + return (int64_t) size; +} + +/* Read data from the file. */ +static int +example3_pread (void *handle, void *buf, uint32_t count, uint64_t offset) +{ + struct example3_handle *h = handle; + + while (count > 0) { + ssize_t r = pread (h->fd, buf, count, offset); + if (r == -1) { + nbdkit_error ("pead: %m"); + return -1; + } + if (r == 0) { + nbdkit_error ("pread: unexpected end of file"); + return -1; + } + buf += r; + count -= r; + offset += r; + } + + return 0; +} + +/* Write data to the file. */ +static int +example3_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset) +{ + struct example3_handle *h = handle; + + while (count > 0) { + ssize_t r = pwrite (h->fd, buf, count, offset); + if (r == -1) { + nbdkit_error ("pwrite: %m"); + return -1; + } + buf += r; + count -= r; + offset += r; + } + + return 0; +} + +/* Flush the file to disk. */ +static int +example3_flush (void *handle) +{ + struct example3_handle *h = handle; + + if (fdatasync (h->fd) == -1) { + nbdkit_error ("fdatasync: %m"); + return -1; + } + + return 0; +} + +static struct nbdkit_plugin plugin = { + .name = "example3", + .version = PACKAGE_VERSION, + .dump_plugin = example3_dump_plugin, + .config = example3_config, + .config_help = example3_config_help, + .open = example3_open, + .close = example3_close, + .get_size = example3_get_size, + .pread = example3_pread, + .pwrite = example3_pwrite, + .flush = example3_flush, + /* In this plugin, errno is preserved properly along error return + * paths from failed system calls. + */ + .errno_is_preserved = 1, +}; + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/plugins/example3/nbdkit-example3-plugin.pod b/plugins/example3/nbdkit-example3-plugin.pod new file mode 100644 index 0000000..c9fd23d --- /dev/null +++ b/plugins/example3/nbdkit-example3-plugin.pod @@ -0,0 +1,40 @@ +=head1 NAME + +nbdkit-example3-plugin - example nbdkit plugin + +=head1 SYNOPSIS + + nbdkit example3 [size=SIZE] + +=head1 EXAMPLE + + nbdkit example3 size=1G + guestfish --ro --format=raw -a nbd://localhost + +=head1 DESCRIPTION + +C is an example L plugin. + +On each connection, it generates a temporary writable block device of +size C. The disk is thrown away when the client disconnects. + +The C parameter can use a number of common formats to +specify the size, eg. C<100M>, C<2G>. If the parameter is omitted, it +defaults to 100M. + +Mainly this is useful for testing nbdkit and as an example for writing +nbdkit plugins (L). + +=head1 SEE ALSO + +L, +L, +L + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2013 Red Hat Inc. diff --git a/plugins/example4/Makefile.am b/plugins/example4/Makefile.am new file mode 100644 index 0000000..75c79fb --- /dev/null +++ b/plugins/example4/Makefile.am @@ -0,0 +1,63 @@ +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +source = example4.pl + +EXTRA_DIST = \ + $(source) + +if HAVE_PERL + +plugin_SCRIPTS = nbdkit-example4-plugin +CLEANFILES += nbdkit-example4-plugin + +# We have to do the rewriting here to avoid stupid exec_prefix. +nbdkit-example4-plugin: $(source) + rm -f $@ $@-t + sed 's,\@sbindir\@,${sbindir},g' < $< > $@-t + mv $@-t $@ + chmod 0555 $@ + +if HAVE_POD + +man_MANS = nbdkit-example4-plugin.1 +CLEANFILES += $(man_MANS) + +nbdkit-example4-plugin.1: $(source) + $(PODWRAPPER) --section=1 --name nbdkit-example4-plugin --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD + +endif diff --git a/plugins/example4/Makefile.in b/plugins/example4/Makefile.in new file mode 100644 index 0000000..9a6d21b --- /dev/null +++ b/plugins/example4/Makefile.in @@ -0,0 +1,725 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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cscopelist-am ctags-am distclean distclean-generic \ + distclean-libtool distdir dvi dvi-am html html-am info info-am \ + install install-am install-data install-data-am install-dvi \ + install-dvi-am install-exec install-exec-am install-html \ + install-html-am install-info install-info-am install-man \ + install-man1 install-pdf install-pdf-am install-pluginSCRIPTS \ + install-ps install-ps-am install-strip installcheck \ + installcheck-am installdirs maintainer-clean \ + maintainer-clean-generic mostlyclean mostlyclean-generic \ + mostlyclean-libtool pdf pdf-am ps ps-am tags-am uninstall \ + uninstall-am uninstall-man uninstall-man1 \ + uninstall-pluginSCRIPTS + +.PRECIOUS: Makefile + + +# We have to do the rewriting here to avoid stupid exec_prefix. +@HAVE_PERL_TRUE@nbdkit-example4-plugin: $(source) +@HAVE_PERL_TRUE@ rm -f $@ $@-t +@HAVE_PERL_TRUE@ sed 's,\@sbindir\@,${sbindir},g' < $< > $@-t +@HAVE_PERL_TRUE@ mv $@-t $@ +@HAVE_PERL_TRUE@ chmod 0555 $@ + +@HAVE_PERL_TRUE@@HAVE_POD_TRUE@nbdkit-example4-plugin.1: $(source) +@HAVE_PERL_TRUE@@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --name nbdkit-example4-plugin --man $@ \ +@HAVE_PERL_TRUE@@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_PERL_TRUE@@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/plugins/example4/example4.pl b/plugins/example4/example4.pl new file mode 100644 index 0000000..fe1cfa5 --- /dev/null +++ b/plugins/example4/example4.pl @@ -0,0 +1,126 @@ +#!@sbindir@/nbdkit perl +# -*- perl -*- + +=pod + +=head1 NAME + +nbdkit-example4-plugin - example nbdkit plugin written in Perl + +=head1 SYNOPSIS + + nbdkit example4 size= + +=head1 EXAMPLE + + nbdkit example4 size=1048576 + guestfish -a nbd://localhost + +=head1 DESCRIPTION + +C is an example L plugin +written in Perl. + +The C parameter is required. It specifies the disk size in +bytes. A single disk image, initially all zeroes, is created and can +be read and written by all clients. When nbdkit shuts down the disk +image is thrown away. + +Mainly this is useful for testing and as an example of nbdkit plugins +written in Perl. You should also read L and +L. Note that nbdkit plugins may be written in +C or other scripting languages. + +=head1 SEE ALSO + +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2017 Red Hat Inc. + +=cut + +use strict; + +my $disk; +my $size; + +# size= (in bytes) is required on the command line. +# This example could be improved by parsing strings such as "1M". +sub config +{ + my $k = shift; + my $v = shift; + + if ($k eq "size") { + $size = int ($v); + } + else { + die "unknown parameter $k"; + } +} + +# When all config parameters have been seen, allocate the disk. +sub config_complete +{ + die "size was not set" unless defined $size; + $disk = "\0" x $size; +} + +# Accept a connection from a client, create and return the handle +# which is passed back to other calls. +sub open +{ + my $readonly = shift; + my $h = { readonly => $readonly }; + return $h; +} + +# Close the connection. +sub close +{ + my $h = shift; +} + +# Return the size. +sub get_size +{ + my $h = shift; + return length ($disk); +} + +# Read. +sub pread +{ + my $h = shift; + my $count = shift; + my $offset = shift; + return substr ($disk, $offset, $count); +} + +# Write. +sub pwrite +{ + my $h = shift; + my $buf = shift; + my $count = length ($buf); + my $offset = shift; + substr ($disk, $offset, $count) = $buf; +} + +# If you want to display extra information about the plugin when +# the user does ‘nbdkit example4 --dump-plugin’ then you can print +# ‘key=value’ lines here. +sub dump_plugin +{ + print "example4_extra=hello\n"; + flush STDOUT; +} diff --git a/plugins/ext2/Makefile.am b/plugins/ext2/Makefile.am new file mode 100644 index 0000000..ab0dfbe --- /dev/null +++ b/plugins/ext2/Makefile.am @@ -0,0 +1,66 @@ +# nbdkit +# Copyright (C) 2017-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-ext2-plugin.pod + +if HAVE_EXT2 + +plugin_LTLIBRARIES = nbdkit-ext2-plugin.la + +nbdkit_ext2_plugin_la_SOURCES = \ + ext2.c \ + $(top_srcdir)/include/nbdkit-plugin.h + +nbdkit_ext2_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/include +nbdkit_ext2_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) \ + $(EXT2FS_CFLAGS) $(COM_ERR_CFLAGS) +nbdkit_ext2_plugin_la_LIBADD = \ + $(EXT2FS_LIBS) $(COM_ERR_LIBS) +nbdkit_ext2_plugin_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms + +if HAVE_POD + +man_MANS = nbdkit-ext2-plugin.1 +CLEANFILES += $(man_MANS) + +nbdkit-ext2-plugin.1: nbdkit-ext2-plugin.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD +endif diff --git a/plugins/ext2/Makefile.in b/plugins/ext2/Makefile.in new file mode 100644 index 0000000..b16cba5 --- /dev/null +++ b/plugins/ext2/Makefile.in @@ -0,0 +1,889 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2017-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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pdf pdf-am ps ps-am \ + tags tags-am uninstall uninstall-am uninstall-man \ + uninstall-man1 uninstall-pluginLTLIBRARIES + +.PRECIOUS: Makefile + + +@HAVE_EXT2_TRUE@@HAVE_POD_TRUE@nbdkit-ext2-plugin.1: nbdkit-ext2-plugin.pod +@HAVE_EXT2_TRUE@@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_EXT2_TRUE@@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_EXT2_TRUE@@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/plugins/ext2/ext2.c b/plugins/ext2/ext2.c new file mode 100644 index 0000000..17f88fe --- /dev/null +++ b/plugins/ext2/ext2.c @@ -0,0 +1,355 @@ +/* nbdkit + * Copyright (C) 2017-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include + +/* Inlining is broken in the ext2fs header file. Disable it by + * defining the following: + */ +#define NO_INLINE_FUNCS +#include + +#define NBDKIT_API_VERSION 2 + +#include + +/* Disk image and filename parameters. */ +static char *disk; +static char *file; + +static void +ext2_load (void) +{ + initialize_ext2_error_table (); +} + +static void +ext2_unload (void) +{ + free (disk); + free (file); +} + +static int +ext2_config (const char *key, const char *value) +{ + if (strcmp (key, "disk") == 0) { + if (disk != NULL) { + nbdkit_error ("disk parameter specified more than once"); + return -1; + } + disk = nbdkit_absolute_path (value); + if (disk == NULL) + return -1; + } + else if (strcmp (key, "file") == 0) { + if (file != NULL) { + nbdkit_error ("file parameter specified more than once"); + return -1; + } + file = strdup (value); + if (file == NULL) { + nbdkit_error ("strdup: %m"); + return -1; + } + } + else { + nbdkit_error ("unknown parameter '%s'", key); + return -1; + } + + return 0; +} + +static int +ext2_config_complete (void) +{ + if (disk == NULL || file == NULL) { + nbdkit_error ("you must supply disk= and file= parameters " + "after the plugin name on the command line"); + return -1; + } + + if (file[0] != '/') { + nbdkit_error ("the file parameter must refer to an absolute path"); + return -1; + } + + return 0; +} + +#define ext2_config_help \ + "disk= (required) Raw ext2, ext3 or ext4 filesystem.\n" \ + "file= (required) File to serve inside the disk image." + +/* The per-connection handle. */ +struct handle { + ext2_filsys fs; /* Filesystem handle. */ + ext2_ino_t ino; /* Inode of open file. */ + ext2_file_t file; /* File handle. */ +}; + +/* Create the per-connection handle. */ +static void * +ext2_open (int readonly) +{ + struct handle *h; + errcode_t err; + int fs_flags; + int file_flags; + struct ext2_inode inode; + + h = malloc (sizeof *h); + if (h == NULL) { + nbdkit_error ("malloc: %m"); + return NULL; + } + + fs_flags = 0; +#ifdef EXT2_FLAG_64BITS + fs_flags |= EXT2_FLAG_64BITS; +#endif + if (!readonly) + fs_flags |= EXT2_FLAG_RW; + + err = ext2fs_open (disk, fs_flags, 0, 0, unix_io_manager, &h->fs); + if (err != 0) { + nbdkit_error ("%s: open: %s", disk, error_message (err)); + goto err0; + } + + if (strcmp (file, "/") == 0) + /* probably gonna fail, but we'll catch it later */ + h->ino = EXT2_ROOT_INO; + else { + err = ext2fs_namei (h->fs, EXT2_ROOT_INO, EXT2_ROOT_INO, + &file[1], &h->ino); + if (err != 0) { + nbdkit_error ("%s: %s: namei: %s", disk, file, error_message (err)); + goto err1; + } + } + + /* Check the file is a regular file. + * XXX This won't follow symlinks, we'd have to do that manually. + */ + err = ext2fs_read_inode (h->fs, h->ino, &inode); + if (err != 0) { + nbdkit_error ("%s: %s: inode: %s", disk, file, error_message (err)); + goto err1; + } + if (!LINUX_S_ISREG (inode.i_mode)) { + nbdkit_error ("%s: %s: must be a regular file in the disk image", + disk, file); + goto err1; + } + + file_flags = 0; + if (!readonly) + file_flags |= EXT2_FILE_WRITE; + err = ext2fs_file_open2 (h->fs, h->ino, NULL, file_flags, &h->file); + if (err != 0) { + nbdkit_error ("%s: %s: open: %s", disk, file, error_message (err)); + goto err1; + } + + return h; + + err1: + ext2fs_close (h->fs); + err0: + free (h); + return NULL; +} + +/* Free up the per-connection handle. */ +static void +ext2_close (void *handle) +{ + struct handle *h = handle; + + ext2fs_file_close (h->file); + ext2fs_close (h->fs); + free (h); +} + +static int +ext2_can_fua (void *handle) +{ + return NBDKIT_FUA_NATIVE; +} + +/* It might be possible to relax this, but it's complicated. + * + * It's desirable for ‘nbdkit -r’ to behave the same way as + * ‘mount -o ro’. But we don't know the state of the readonly flag + * until ext2_open is called (because the NBD client can also request + * a readonly connection). So we could not set the "ro" flag if we + * opened the filesystem any earlier (eg in ext2_config). + * + * So out of necessity we have one ext2_filsys handle per connection, + * but if we allowed parallel work on those handles then we would get + * data corruption, so we need to serialize connections. + */ +#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_CONNECTIONS + +/* Get the disk size. */ +static int64_t +ext2_get_size (void *handle) +{ + struct handle *h = handle; + errcode_t err; + uint64_t size; + + err = ext2fs_file_get_lsize (h->file, (__u64 *) &size); + if (err != 0) { + nbdkit_error ("%s: %s: lsize: %s", disk, file, error_message (err)); + return -1; + } + return (int64_t) size; +} + +/* Read data. */ +static int +ext2_pread (void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags) +{ + struct handle *h = handle; + errcode_t err; + unsigned int got; + + while (count > 0) { + /* Although this function weirdly can return the new offset, + * examination of the code shows that it never returns anything + * different from what we set, so NULL out that parameter. + */ + err = ext2fs_file_llseek (h->file, offset, EXT2_SEEK_SET, NULL); + if (err != 0) { + nbdkit_error ("%s: %s: llseek: %s", disk, file, error_message (err)); + return -1; + } + + err = ext2fs_file_read (h->file, buf, (unsigned int) count, &got); + if (err != 0) { + nbdkit_error ("%s: %s: read: %s", disk, file, error_message (err)); + return -1; + } + + buf += got; + count -= got; + offset += got; + } + + return 0; +} + +/* Write data to the file. */ +static int +ext2_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset, + uint32_t flags) +{ + struct handle *h = handle; + errcode_t err; + unsigned int written; + + while (count > 0) { + err = ext2fs_file_llseek (h->file, offset, EXT2_SEEK_SET, NULL); + if (err != 0) { + nbdkit_error ("%s: %s: llseek: %s", disk, file, error_message (err)); + return -1; + } + + err = ext2fs_file_write (h->file, buf, (unsigned int) count, &written); + if (err != 0) { + nbdkit_error ("%s: %s: write: %s", disk, file, error_message (err)); + return -1; + } + + buf += written; + count -= written; + offset += written; + } + + if ((flags & NBDKIT_FLAG_FUA) != 0) { + err = ext2fs_file_flush (h->file); + if (err != 0) { + nbdkit_error ("%s: %s: flush: %s", disk, file, error_message (err)); + return -1; + } + } + + return 0; +} + +static int +ext2_flush (void *handle, uint32_t flags) +{ + struct handle *h = handle; + errcode_t err; + + err = ext2fs_file_flush (h->file); + if (err != 0) { + nbdkit_error ("%s: %s: flush: %s", disk, file, error_message (err)); + return -1; + } + + return 0; +} + +/* XXX It seems as if we should be able to support trim and zero, if + * we could work out how those are implemented in the ext2fs API which + * is very obscure. + */ + +static struct nbdkit_plugin plugin = { + .name = "ext2", + .version = PACKAGE_VERSION, + .load = ext2_load, + .unload = ext2_unload, + .config = ext2_config, + .config_complete = ext2_config_complete, + .config_help = ext2_config_help, + .open = ext2_open, + .close = ext2_close, + .can_fua = ext2_can_fua, + .get_size = ext2_get_size, + .pread = ext2_pread, + .pwrite = ext2_pwrite, + .flush = ext2_flush, + .errno_is_preserved = 1, +}; + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/plugins/ext2/nbdkit-ext2-plugin.pod b/plugins/ext2/nbdkit-ext2-plugin.pod new file mode 100644 index 0000000..feef5f5 --- /dev/null +++ b/plugins/ext2/nbdkit-ext2-plugin.pod @@ -0,0 +1,89 @@ +=head1 NAME + +nbdkit-ext2-plugin - read and write files inside ext2, ext3 or +ext4 filesystems + +=head1 SYNOPSIS + + nbdkit ext2 disk=fs.img file=/disks/disk.raw + + nbdkit --filter=partition ext2 \ + disk=disk.img file=/disks/disk.raw \ + partition=1 + +=head1 DESCRIPTION + +C is an nbdkit plugin which can read and +write files inside ext2, ext3 or ext4 filesystem images. + +Suppose you have an ext2/3/4 filesystem image called F +which contains inside itself a file called F +inside a directory on the filesystem called F, then +you could serve that file over NBD using: + + nbdkit ext2 disk=fs.img file=/disks/disk.raw + +Commonly disk images are partitioned. In that case you must +use L to select the partition: + + nbdkit --filter=partition ext2 disk=.. file=.. partition=1 + +This plugin can both read and write to the file inside the filesystem. +Use the I<-r> flag to force a readonly connection, but note this does +I guarantee that no writes are made to the filesystem. In +particular we may have to replay the ext3 journal in order to open a +filesystem even read-only. + +The plugin does I support multiple parallel connections, because +there is a risk of corrupting the filesystem (as if the filesystem was +mounted by multiple machines). If a second connection is made to +nbdkit, it will block until the first connection closes. + +The plugin is implemented using the ext2fs library which is provided +in most Linux distros, and also available as part of the e2fsprogs +project. + +L is a more generic plugin which can read +files from all kinds of different filesystem types, even if they are +partitioned or use logical volumes. It uses libguestfs instead of +e2fsprogs. + +=head1 PARAMETERS + +=over 4 + +=item BFILENAME + +The ext2, ext3 or ext4 filesystem, a file on the host. + +You could also use a device name here if the filesystem is located on +a device. Be careful that the filesystem is not being accessed in +parallel by another program and is not mounted, as that will almost +certainly result in disk corruption in the filesystem. + +The plugin expects a raw filesystem. If the file/device is +partitioned, use L. + +=item BPATH + +The full path of the file within the filesystem that will be exposed +over NBD. The path must be absolute (starts with C). + +=back + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/plugins/file/Makefile.am b/plugins/file/Makefile.am new file mode 100644 index 0000000..f3b3f97 --- /dev/null +++ b/plugins/file/Makefile.am @@ -0,0 +1,61 @@ +# nbdkit +# Copyright (C) 2013 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-file-plugin.pod + +plugin_LTLIBRARIES = nbdkit-file-plugin.la + +nbdkit_file_plugin_la_SOURCES = \ + file.c \ + $(top_srcdir)/include/nbdkit-plugin.h + +nbdkit_file_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include +nbdkit_file_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_file_plugin_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms + +if HAVE_POD + +man_MANS = nbdkit-file-plugin.1 +CLEANFILES += $(man_MANS) + +nbdkit-file-plugin.1: nbdkit-file-plugin.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/plugins/file/Makefile.in b/plugins/file/Makefile.in new file mode 100644 index 0000000..72a3923 --- /dev/null +++ b/plugins/file/Makefile.in @@ -0,0 +1,880 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2013 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/plugins/file/file.c b/plugins/file/file.c new file mode 100644 index 0000000..2785399 --- /dev/null +++ b/plugins/file/file.c @@ -0,0 +1,648 @@ +/* nbdkit + * Copyright (C) 2013-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#if defined(__linux__) && !defined(FALLOC_FL_PUNCH_HOLE) +#include /* For FALLOC_FL_*, glibc < 2.18 */ +#endif + +#if defined(__linux__) +#include /* For BLKZEROOUT */ +#endif + +#define NBDKIT_API_VERSION 2 + +#include + +#include "isaligned.h" + +#ifndef O_CLOEXEC +#define O_CLOEXEC 0 +#endif + +#ifndef HAVE_FDATASYNC +#define fdatasync fsync +#endif + +static char *filename = NULL; + +/* Any callbacks using lseek must be protected by this lock. */ +static pthread_mutex_t lseek_lock = PTHREAD_MUTEX_INITIALIZER; + +/* to enable: -D file.zero=1 */ +int file_debug_zero; + +static void +file_unload (void) +{ + free (filename); +} + +/* Called for each key=value passed on the command line. This plugin + * only accepts file=, which is required. + */ +static int +file_config (const char *key, const char *value) +{ + if (strcmp (key, "file") == 0) { + /* See FILENAMES AND PATHS in nbdkit-plugin(3). */ + free (filename); + filename = nbdkit_realpath (value); + if (!filename) + return -1; + } + else if (strcmp (key, "rdelay") == 0 || + strcmp (key, "wdelay") == 0) { + nbdkit_error ("add --filter=delay on the command line"); + return -1; + } + else { + nbdkit_error ("unknown parameter '%s'", key); + return -1; + } + + return 0; +} + +/* Check the user did pass a file= parameter. */ +static int +file_config_complete (void) +{ + if (filename == NULL) { + nbdkit_error ("you must supply the file= parameter " + "after the plugin name on the command line"); + return -1; + } + + return 0; +} + +#define file_config_help \ + "file= (required) The filename to serve." \ + +/* Print some extra information about how the plugin was compiled. */ +static void +file_dump_plugin (void) +{ +#ifdef BLKSSZGET + printf ("file_blksszget=yes\n"); +#endif +#ifdef BLKZEROOUT + printf ("file_blkzeroout=yes\n"); +#endif +#ifdef FALLOC_FL_PUNCH_HOLE + printf ("file_falloc_fl_punch_hole=yes\n"); +#endif +#ifdef FALLOC_FL_ZERO_RANGE + printf ("file_falloc_fl_zero_range=yes\n"); +#endif +} + +/* The per-connection handle. */ +struct handle { + int fd; + bool is_block_device; + int sector_size; + bool can_punch_hole; + bool can_zero_range; + bool can_fallocate; + bool can_zeroout; +}; + +/* Create the per-connection handle. */ +static void * +file_open (int readonly) +{ + struct handle *h; + struct stat statbuf; + int flags; + + h = malloc (sizeof *h); + if (h == NULL) { + nbdkit_error ("malloc: %m"); + return NULL; + } + + flags = O_CLOEXEC|O_NOCTTY; + if (readonly) + flags |= O_RDONLY; + else + flags |= O_RDWR; + + h->fd = open (filename, flags); + if (h->fd == -1) { + nbdkit_error ("open: %s: %m", filename); + free (h); + return NULL; + } + + if (fstat (h->fd, &statbuf) == -1) { + nbdkit_error ("fstat: %s: %m", filename); + free (h); + return NULL; + } + + h->is_block_device = S_ISBLK(statbuf.st_mode); + h->sector_size = 4096; /* Start with safe guess */ + +#ifdef BLKSSZGET + if (h->is_block_device) { + if (ioctl (h->fd, BLKSSZGET, &h->sector_size)) + nbdkit_debug ("cannot get sector size: %s: %m", filename); + } +#endif + +#ifdef FALLOC_FL_PUNCH_HOLE + h->can_punch_hole = true; +#else + h->can_punch_hole = false; +#endif + +#ifdef FALLOC_FL_ZERO_RANGE + h->can_zero_range = true; +#else + h->can_zero_range = false; +#endif + + h->can_fallocate = true; + h->can_zeroout = h->is_block_device; + + return h; +} + +/* Free up the per-connection handle. */ +static void +file_close (void *handle) +{ + struct handle *h = handle; + + close (h->fd); + free (h); +} + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + +/* For block devices, stat->st_size is not the true size. The caller + * grabs the lseek_lock. + */ +static int64_t +block_device_size (int fd) +{ + off_t size; + + size = lseek (fd, 0, SEEK_END); + if (size == -1) { + nbdkit_error ("lseek (to find device size): %m"); + return -1; + } + + return size; +} + +/* Get the file size. */ +static int64_t +file_get_size (void *handle) +{ + struct handle *h = handle; + + if (h->is_block_device) { + int64_t size; + + pthread_mutex_lock (&lseek_lock); + size = block_device_size (h->fd); + pthread_mutex_unlock (&lseek_lock); + return size; + } else { + /* Regular file. */ + struct stat statbuf; + + if (fstat (h->fd, &statbuf) == -1) { + nbdkit_error ("fstat: %m"); + return -1; + } + + return statbuf.st_size; + } +} + +/* Allow multiple parallel connections from a single client. */ +static int +file_can_multi_conn (void *handle) +{ + return 1; +} + +static int +file_can_trim (void *handle) +{ + /* Trim is advisory, but we prefer to advertise it only when we can + * actually (attempt to) punch holes. Since not all filesystems + * support all fallocate modes, it would be nice if we had a way + * from fpathconf() to definitively learn what will work on a given + * fd for a more precise answer; oh well. */ +#ifdef FALLOC_FL_PUNCH_HOLE + return 1; +#else + return 0; +#endif +} + +static int +file_can_fua (void *handle) +{ + return NBDKIT_FUA_NATIVE; +} + +/* Flush the file to disk. */ +static int +file_flush (void *handle, uint32_t flags) +{ + struct handle *h = handle; + + if (fdatasync (h->fd) == -1) { + nbdkit_error ("fdatasync: %m"); + return -1; + } + + return 0; +} + +/* Read data from the file. */ +static int +file_pread (void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags) +{ + struct handle *h = handle; + + while (count > 0) { + ssize_t r = pread (h->fd, buf, count, offset); + if (r == -1) { + nbdkit_error ("pread: %m"); + return -1; + } + if (r == 0) { + nbdkit_error ("pread: unexpected end of file"); + return -1; + } + buf += r; + count -= r; + offset += r; + } + + return 0; +} + +/* Write data to the file. */ +static int +file_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset, + uint32_t flags) +{ + struct handle *h = handle; + + while (count > 0) { + ssize_t r = pwrite (h->fd, buf, count, offset); + if (r == -1) { + nbdkit_error ("pwrite: %m"); + return -1; + } + buf += r; + count -= r; + offset += r; + } + + if ((flags & NBDKIT_FLAG_FUA) && file_flush (handle, 0) == -1) + return -1; + + return 0; +} + +#if defined(FALLOC_FL_PUNCH_HOLE) || defined(FALLOC_FL_ZERO_RANGE) +static int +do_fallocate(int fd, int mode, off_t offset, off_t len) +{ + int r = fallocate (fd, mode, offset, len); + if (r == -1 && errno == ENODEV) { + /* kernel 3.10 fails with ENODEV for block device. Kernel >= 4.9 fails + with EOPNOTSUPP in this case. Normalize errno to simplify callers. */ + errno = EOPNOTSUPP; + } + return r; +} +#endif + +/* Write zeroes to the file. */ +static int +file_zero (void *handle, uint32_t count, uint64_t offset, uint32_t flags) +{ + struct handle *h = handle; + int r; + +#ifdef FALLOC_FL_PUNCH_HOLE + if (h->can_punch_hole && (flags & NBDKIT_FLAG_MAY_TRIM)) { + r = do_fallocate (h->fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, + offset, count); + if (r == 0) { + if (file_debug_zero) + nbdkit_debug ("h->can_punch_hole && may_trim: " + "zero succeeded using fallocate"); + goto out; + } + + if (errno != EOPNOTSUPP) { + nbdkit_error ("zero: %m"); + return -1; + } + + h->can_punch_hole = false; + } +#endif + +#ifdef FALLOC_FL_ZERO_RANGE + if (h->can_zero_range) { + r = do_fallocate (h->fd, FALLOC_FL_ZERO_RANGE, offset, count); + if (r == 0) { + if (file_debug_zero) + nbdkit_debug ("h->can_zero-range: " + "zero succeeded using fallocate"); + goto out; + } + + if (errno != EOPNOTSUPP) { + nbdkit_error ("zero: %m"); + return -1; + } + + h->can_zero_range = false; + } +#endif + +#ifdef FALLOC_FL_PUNCH_HOLE + /* If we can punch hole but may not trim, we can combine punching hole and + * fallocate to zero a range. This is expected to be more efficient than + * writing zeros manually. */ + if (h->can_punch_hole && h->can_fallocate) { + r = do_fallocate (h->fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, + offset, count); + if (r == 0) { + r = do_fallocate (h->fd, 0, offset, count); + if (r == 0) { + if (file_debug_zero) + nbdkit_debug ("h->can_punch_hole && h->can_fallocate: " + "zero succeeded using fallocate"); + goto out; + } + + if (errno != EOPNOTSUPP) { + nbdkit_error ("zero: %m"); + return -1; + } + + h->can_fallocate = false; + } else { + if (errno != EOPNOTSUPP) { + nbdkit_error ("zero: %m"); + return -1; + } + + h->can_punch_hole = false; + } + } +#endif + +#ifdef BLKZEROOUT + /* For aligned range and block device, we can use BLKZEROOUT. */ + if (h->can_zeroout && IS_ALIGNED (offset | count, h->sector_size)) { + uint64_t range[2] = {offset, count}; + + r = ioctl (h->fd, BLKZEROOUT, &range); + if (r == 0) { + if (file_debug_zero) + nbdkit_debug ("h->can_zeroout && IS_ALIGNED: " + "zero succeeded using BLKZEROOUT"); + goto out; + } + + if (errno != ENOTTY) { + nbdkit_error ("zero: %m"); + return -1; + } + + h->can_zeroout = false; + } +#endif + + /* Trigger a fall back to writing */ + if (file_debug_zero) + nbdkit_debug ("zero falling back to writing"); + errno = EOPNOTSUPP; + return -1; + + out: + if ((flags & NBDKIT_FLAG_FUA) && file_flush (handle, 0) == -1) + return -1; + return 0; +} + +/* Punch a hole in the file. */ +static int +file_trim (void *handle, uint32_t count, uint64_t offset, uint32_t flags) +{ +#ifdef FALLOC_FL_PUNCH_HOLE + struct handle *h = handle; + int r; + + if (h->can_punch_hole) { + r = do_fallocate (h->fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, + offset, count); + if (r == -1) { + /* Trim is advisory; we don't care if it fails for anything other + * than EIO or EPERM. */ + if (errno == EPERM || errno == EIO) { + nbdkit_error ("fallocate: %m"); + return -1; + } + + if (errno == EOPNOTSUPP) + h->can_punch_hole = false; + + nbdkit_debug ("ignoring failed fallocate during trim: %m"); + } + } +#endif + + if ((flags & NBDKIT_FLAG_FUA) && file_flush (handle, 0) == -1) + return -1; + + return 0; +} + +#ifdef SEEK_HOLE +/* Extents. */ + +static int +file_can_extents (void *handle) +{ + struct handle *h = handle; + off_t r; + + /* A simple test to see whether SEEK_HOLE etc is likely to work on + * the current filesystem. + */ + pthread_mutex_lock (&lseek_lock); + r = lseek (h->fd, 0, SEEK_HOLE); + pthread_mutex_unlock (&lseek_lock); + if (r == -1) { + nbdkit_debug ("extents disabled: lseek: SEEK_HOLE: %m"); + return 0; + } + return 1; +} + +static int +do_extents (void *handle, uint32_t count, uint64_t offset, + uint32_t flags, struct nbdkit_extents *extents) +{ + struct handle *h = handle; + const bool req_one = flags & NBDKIT_FLAG_REQ_ONE; + uint64_t end = offset + count; + + do { + off_t pos; + + pos = lseek (h->fd, offset, SEEK_DATA); + if (pos == -1) { + if (errno == ENXIO) { + /* The current man page does not describe this situation well, + * but a proposed change to POSIX adds these words for ENXIO: + * "or the whence argument is SEEK_DATA and the offset falls + * within the final hole of the file." + */ + pos = end; + } + else { + nbdkit_error ("lseek: SEEK_DATA: %" PRIu64 ": %m", offset); + return -1; + } + } + + /* We know there is a hole from offset to pos-1. */ + if (pos > offset) { + if (nbdkit_add_extent (extents, offset, pos - offset, + NBDKIT_EXTENT_HOLE | NBDKIT_EXTENT_ZERO) == -1) + return -1; + if (req_one) + break; + } + + offset = pos; + if (offset >= end) + break; + + pos = lseek (h->fd, offset, SEEK_HOLE); + if (pos == -1) { + nbdkit_error ("lseek: SEEK_HOLE: %" PRIu64 ": %m", offset); + return -1; + } + + /* We know there is data from offset to pos-1. */ + if (pos > offset) { + if (nbdkit_add_extent (extents, offset, pos - offset, + 0 /* allocated data */) == -1) + return -1; + if (req_one) + break; + } + + offset = pos; + } while (offset < end); + + return 0; +} + +static int +file_extents (void *handle, uint32_t count, uint64_t offset, + uint32_t flags, struct nbdkit_extents *extents) +{ + int r; + + pthread_mutex_lock (&lseek_lock); + r = do_extents (handle, count, offset, flags, extents); + pthread_mutex_unlock (&lseek_lock); + + return r; +} +#endif /* SEEK_HOLE */ + +static struct nbdkit_plugin plugin = { + .name = "file", + .longname = "nbdkit file plugin", + .version = PACKAGE_VERSION, + .unload = file_unload, + .config = file_config, + .config_complete = file_config_complete, + .config_help = file_config_help, + .magic_config_key = "file", + .dump_plugin = file_dump_plugin, + .open = file_open, + .close = file_close, + .get_size = file_get_size, + .can_multi_conn = file_can_multi_conn, + .can_trim = file_can_trim, + .can_fua = file_can_fua, + .pread = file_pread, + .pwrite = file_pwrite, + .flush = file_flush, + .trim = file_trim, + .zero = file_zero, +#ifdef SEEK_HOLE + .can_extents = file_can_extents, + .extents = file_extents, +#endif + .errno_is_preserved = 1, +}; + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/plugins/file/nbdkit-file-plugin.pod b/plugins/file/nbdkit-file-plugin.pod new file mode 100644 index 0000000..d34a638 --- /dev/null +++ b/plugins/file/nbdkit-file-plugin.pod @@ -0,0 +1,103 @@ +=head1 NAME + +nbdkit-file-plugin - nbdkit file plugin + +=head1 SYNOPSIS + + nbdkit file [file=]FILENAME + +=head1 DESCRIPTION + +C is a file serving plugin for L. + +It serves the named C over NBD. Local block devices +(eg. F) may also be served. + +To concatenate multiple files, use L. + +=head1 PARAMETERS + +=over 4 + +=item [B]FILENAME + +Serve the file named C. A local block device name can also +be used here. + +This parameter is required. + +C is a magic config key and may be omitted in most cases. +See L. + +=item B + +=item B + +These plugin parameters have been moved to the +L filter. Modify the command line to add +I<--filter=delay> in order to use these parameters. + +=back + +=head1 DUMP-PLUGIN OUTPUT + +You can obtain extra information about how the file plugin was +compiled by doing: + + nbdkit file --dump-plugin + +Some of the fields which may appear are listed below. Note these are +for information only and may be changed or removed at any time in the +future. + +=over 4 + +=item C + +=item C + +If both set, the plugin may be able to efficiently zero ranges of +block devices, where the driver and block device itself supports this. + +=item C + +If set, the plugin may be able to punch holes (make sparse) files and +block devices. + +=item C + +If set, the plugin may be able to efficiently zero ranges of files and +block devices. + +=back + +=head1 DEBUG FLAG + +=over 4 + +=item B<-D file.zero=1> + +This enables very verbose debugging of the NBD zero request. This can +be used to tell if the file plugin is able to zero ranges in the file +or block device efficiently or not. + +=back + +=head1 SEE ALSO + +L, +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +Nir Soffer + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2013-2018 Red Hat Inc. diff --git a/plugins/floppy/Makefile.am b/plugins/floppy/Makefile.am new file mode 100644 index 0000000..8fd72e2 --- /dev/null +++ b/plugins/floppy/Makefile.am @@ -0,0 +1,72 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-floppy-plugin.pod + +if HAVE_ICONV + +plugin_LTLIBRARIES = nbdkit-floppy-plugin.la + +nbdkit_floppy_plugin_la_SOURCES = \ + directory-lfn.c \ + floppy.c \ + virtual-floppy.c \ + virtual-floppy.h \ + $(top_srcdir)/include/nbdkit-plugin.h + +nbdkit_floppy_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/common/regions \ + -I. +nbdkit_floppy_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_floppy_plugin_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms +nbdkit_floppy_plugin_la_LIBADD = \ + $(top_builddir)/common/regions/libregions.la + +if HAVE_POD + +man_MANS = nbdkit-floppy-plugin.1 +CLEANFILES += $(man_MANS) + +nbdkit-floppy-plugin.1: nbdkit-floppy-plugin.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD + +endif diff --git a/plugins/floppy/Makefile.in b/plugins/floppy/Makefile.in new file mode 100644 index 0000000..90fdd7c --- /dev/null +++ b/plugins/floppy/Makefile.in @@ -0,0 +1,921 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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html-am info info-am install install-am \ + install-data install-data-am install-dvi install-dvi-am \ + install-exec install-exec-am install-html install-html-am \ + install-info install-info-am install-man install-man1 \ + install-pdf install-pdf-am install-pluginLTLIBRARIES \ + install-ps install-ps-am install-strip installcheck \ + installcheck-am installdirs maintainer-clean \ + maintainer-clean-generic mostlyclean mostlyclean-compile \ + mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \ + tags tags-am uninstall uninstall-am uninstall-man \ + uninstall-man1 uninstall-pluginLTLIBRARIES + +.PRECIOUS: Makefile + + +@HAVE_ICONV_TRUE@@HAVE_POD_TRUE@nbdkit-floppy-plugin.1: nbdkit-floppy-plugin.pod +@HAVE_ICONV_TRUE@@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_ICONV_TRUE@@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_ICONV_TRUE@@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/plugins/floppy/directory-lfn.c b/plugins/floppy/directory-lfn.c new file mode 100644 index 0000000..10caf84 --- /dev/null +++ b/plugins/floppy/directory-lfn.c @@ -0,0 +1,625 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* This file deals only with directories and long file names (LFNs). + * Turns out to be the most complicated part of the FAT format. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "byte-swapping.h" + +#include "virtual-floppy.h" + +/* Used for dealing with VFAT LFNs when creating a directory. */ +struct lfn { + const char *name; /* Original Unix filename. */ + char short_base[8]; /* Short basename. */ + char short_ext[3]; /* Short file extension. */ + char *lfn; /* Long filename for MS-DOS as UTF16-LE. */ + size_t lfn_size; /* Size *in bytes* of lfn. */ +}; + +static int add_volume_label (const char *label, size_t di, struct virtual_floppy *floppy); +static int add_dot_entries (size_t di, struct virtual_floppy *floppy); +static int add_directory_entry (const struct lfn *lfn, uint8_t attributes, uint32_t file_size, struct stat *statbuf, size_t di, struct virtual_floppy *floppy); +static uint8_t lfn_checksum (const struct lfn *lfn); +static void set_times (const struct stat *statbuf, struct dir_entry *entry); +static int convert_long_file_names (struct lfn *lfns, size_t n); +static int convert_to_utf16le (const char *name, char **out, size_t *output_len); +static void free_lfns (struct lfn *lfns, size_t n); +static ssize_t extend_dir_table (size_t di, struct virtual_floppy *floppy); + +/* Create the on disk directory table for dirs[di]. */ +int +create_directory (size_t di, const char *label, + struct virtual_floppy *floppy) +{ + size_t i; + const size_t nr_subdirs = floppy->dirs[di].nr_subdirs; + const size_t nr_files = floppy->dirs[di].nr_files; + struct lfn *lfns, *lfn; + const char *name; + uint8_t attributes; + uint32_t file_size; + struct stat *statbuf; + + if (di == 0) { + /* For root directory, add the volume label entry first. */ + if (add_volume_label (label, di, floppy) == -1) + return -1; + } + else { + /* For subdirectories, add "." and ".." entries. */ + if (add_dot_entries (di, floppy) == -1) + return -1; + } + + /* Convert all the filenames in the directory into short and long + * names. This has to be done for the whole directory because + * conflicting short names must be renamed. + */ + lfns = calloc (nr_subdirs + nr_files, sizeof (struct lfn)); + if (lfns == NULL) { + nbdkit_error ("calloc: %m"); + return -1; + } + for (i = 0; i < nr_subdirs; ++i) { + const size_t sdi = floppy->dirs[di].subdirs[i]; + assert (sdi < floppy->nr_dirs); + + name = floppy->dirs[sdi].name; + lfns[i].name = name; + } + for (i = 0; i < nr_files; ++i) { + const size_t fi = floppy->dirs[di].files[i]; + assert (fi < floppy->nr_files); + + name = floppy->files[fi].name; + lfns[nr_subdirs+i].name = name; + } + + if (convert_long_file_names (lfns, nr_subdirs + nr_files) == -1) { + free_lfns (lfns, nr_subdirs + nr_files); + return -1; + } + + /* Add subdirectories. */ + attributes = DIR_ENTRY_SUBDIRECTORY; /* Same as set by Linux kernel. */ + file_size = 0; + for (i = 0; i < nr_subdirs; ++i) { + const size_t sdi = floppy->dirs[di].subdirs[i]; + assert (sdi < floppy->nr_dirs); + + lfn = &lfns[i]; + statbuf = &floppy->dirs[sdi].statbuf; + + if (add_directory_entry (lfn, attributes, file_size, + statbuf, di, floppy) == -1) { + free_lfns (lfns, nr_subdirs + nr_files); + return -1; + } + } + + /* Add files. */ + attributes = DIR_ENTRY_ARCHIVE; /* Same as set by Linux kernel. */ + for (i = 0; i < nr_files; ++i) { + const size_t fi = floppy->dirs[di].files[i]; + assert (fi < floppy->nr_files); + + lfn = &lfns[nr_subdirs+i]; + statbuf = &floppy->files[fi].statbuf; + file_size = statbuf->st_size; + + if (add_directory_entry (lfn, attributes, file_size, + statbuf, di, floppy) == -1) { + free_lfns (lfns, nr_subdirs + nr_files); + return -1; + } + } + + free_lfns (lfns, nr_subdirs + nr_files); + return 0; +} + +/* Add the volume label to dirs[0].table. */ +static int +add_volume_label (const char *label, size_t di, struct virtual_floppy *floppy) +{ + ssize_t i; + struct dir_entry entry; + + assert (di == 0); + + memset (&entry, 0, sizeof entry); + pad_string (label, 11, entry.name); + entry.attributes = DIR_ENTRY_VOLUME_LABEL; /* Same as dosfstools. */ + + i = extend_dir_table (di, floppy); + if (i == -1) + return -1; + floppy->dirs[di].table[i] = entry; + return 0; +} + +/* Add "." and ".." entries for subdirectories. */ +static int +add_dot_entries (size_t di, struct virtual_floppy *floppy) +{ + ssize_t i, pdi; + struct dir_entry entry; + + assert (di != 0); + + memset (&entry, 0, sizeof entry); + pad_string (".", 11, entry.name); + entry.attributes = DIR_ENTRY_SUBDIRECTORY; + set_times (&floppy->dirs[di].statbuf, &entry); + + i = extend_dir_table (di, floppy); + if (i == -1) + return -1; + floppy->dirs[di].table[i] = entry; + + memset (&entry, 0, sizeof entry); + pad_string ("..", 11, entry.name); + entry.attributes = DIR_ENTRY_SUBDIRECTORY; + pdi = floppy->dirs[di].pdi; + set_times (&floppy->dirs[pdi].statbuf, &entry); + + i = extend_dir_table (di, floppy); + if (i == -1) + return -1; + floppy->dirs[di].table[i] = entry; + + return 0; +} + +/* Either truncate or pad a string (with spaces). */ +void +pad_string (const char *label, size_t n, uint8_t *out) +{ + const size_t len = strlen (label); + + memcpy (out, label, len <= n ? len : n); + if (len < n) + memset (out+len, ' ', n-len); +} + +/* Add a directory entry to dirs[di].table. */ +static int +add_directory_entry (const struct lfn *lfn, + uint8_t attributes, uint32_t file_size, + struct stat *statbuf, + size_t di, struct virtual_floppy *floppy) +{ + uint8_t seq, checksum; + ssize_t i; + size_t j; + struct lfn_entry lfn_entry; + struct dir_entry entry; + int last_seq = 1; + + /* LFN support. + * + * Iterate in reverse over the sequence numbers. If the filename is: + * + * "ABCDEFGHIJKLMNO" + * + * assuming those are UCS-2 codepoints, so lfn_size = 15*2 = 30, + * then we generate these LFN sequences: + * + * seq byte_offset s[13] + * 0x42 26 "NO<--zeroes->" + * 0x01 0 "ABCDEFGHIJKLM" + */ + checksum = lfn_checksum (lfn); + for (seq = 1 + lfn->lfn_size/2/13; seq >= 1; --seq) { + size_t byte_offset = (seq-1)*2*13, r; + uint16_t s[13]; + + /* Copy the portion of the LFN into s. + * r = Number of bytes from the original string to copy. + */ + r = lfn->lfn_size - byte_offset; + if (r > 26) + memcpy (s, &lfn->lfn[byte_offset], 26); + else { + memcpy (s, &lfn->lfn[byte_offset], r); + /* Pad remaining filename with 0. */ + for (j = r/2; j < 13; ++j) + s[j] = htole16 (0); + } + + memset (&lfn_entry, 0, sizeof lfn_entry); + lfn_entry.seq = seq; + if (last_seq) { + lfn_entry.seq |= 0x40; + last_seq = 0; + } + lfn_entry.attributes = 0xf; + lfn_entry.checksum = checksum; + + /* Copy the name portion to the fields in the LFN entry. */ + memcpy (lfn_entry.name1, &s[0], 5*2); + memcpy (lfn_entry.name2, &s[5], 6*2); + memcpy (lfn_entry.name3, &s[11], 2*2); + + i = extend_dir_table (di, floppy); + if (i == -1) + return -1; + memcpy (&floppy->dirs[di].table[i], &lfn_entry, sizeof (struct dir_entry)); + } + + /* Create the 8.3 (short name / DOS-compatible) entry. */ + memset (&entry, 0, sizeof entry); + memcpy (entry.name, lfn->short_base, 8); + memcpy (entry.name+8, lfn->short_ext, 3); + entry.attributes = attributes; + set_times (statbuf, &entry); + entry.size = htole32 (file_size); + /* Note that entry.cluster_hi and .cluster_lo are set later on in + * update_directory_first_cluster. + */ + + i = extend_dir_table (di, floppy); + if (i == -1) + return -1; + floppy->dirs[di].table[i] = entry; + + return 0; +} + +/* Compute a checksum for the shortname. In writable LFN filesystems + * this is used to check whether a non-LFN-aware operating system + * (ie. MS-DOS) has edited the directory. It would ignore the hidden + * LFN entries and so the checksum would be wrong. + */ +static uint8_t +lfn_checksum (const struct lfn *lfn) +{ + uint8_t checksum; + size_t i; + + checksum = 0; + for (i = 0; i < 8; ++i) + checksum = ((checksum & 1) << 7) + (checksum >> 1) + lfn->short_base[i]; + for (i = 0; i < 3; ++i) + checksum = ((checksum & 1) << 7) + (checksum >> 1) + lfn->short_ext[i]; + + return checksum; +} + +/* Set the {c,m,a}date and {c,m}time fields in the entry structure + * based on metadata found in the statbuf. + */ +#define MAKE_ENTRY_TIME(tm) \ + ((tm).tm_hour << 11 | (tm).tm_min << 5 | ((tm).tm_sec / 2)) +#define MAKE_ENTRY_DATE(tm) \ + (((tm).tm_year - 80) << 9 | ((tm).tm_mon + 1) << 5 | (tm).tm_mday) + +static void +set_times (const struct stat *statbuf, struct dir_entry *entry) +{ + struct tm ctime_tm, mtime_tm, atime_tm; + + localtime_r (&statbuf->st_ctime, &ctime_tm); + entry->ctime = MAKE_ENTRY_TIME (ctime_tm); + entry->ctime_10ms = 100 * (ctime_tm.tm_sec % 2); + entry->cdate = MAKE_ENTRY_DATE (ctime_tm); + + localtime_r (&statbuf->st_mtime, &mtime_tm); + entry->mtime = MAKE_ENTRY_TIME (mtime_tm); + entry->mdate = MAKE_ENTRY_DATE (mtime_tm); + + localtime_r (&statbuf->st_atime, &atime_tm); + entry->adate = MAKE_ENTRY_DATE (atime_tm); +} + +#define UPPER_ASCII "ABCDEFGHIJKLMNOPQRSTUVWXYZ" +#define LOWER_ASCII "abcdefghijklmnopqrstuvwxyz" +#define NUMBERS_ASCII "0123456789" + +/* Characters which are valid in short names. + * + * Lowercase is not actually valid, but it makes the + * implementation below simpler and we toupper the final string. + * + * ~ is also valid but don't include it here because we want to + * keep it as a special character for renaming duplicates below. + */ +static const char short_name_ok[] = + UPPER_ASCII LOWER_ASCII NUMBERS_ASCII "!#$%&'()-@^_`{}"; + +static int +convert_long_file_names (struct lfn *lfns, size_t n) +{ + size_t i, j, len; + struct lfn *lfn; + + /* Split the filenames to generate a list of short basenames + extensions. */ + for (i = 0; i < n; ++i) { + const char *p; + + lfn = &lfns[i]; + + len = strspn (lfn->name, short_name_ok); + memcpy (lfns[i].short_base, lfn->name, len <= 8 ? len : 8); + if (len < 8) + memset (lfn->short_base+len, ' ', 8-len); + /* Look for the extension. */ + p = strrchr (lfn->name, '.'); + if (p) { + p++; + len = strspn (p, short_name_ok); + memcpy (lfn->short_ext, p, len <= 3 ? len : 3); + if (len < 3) + memset (lfn->short_ext+len, ' ', 3-len); + } + else + memset (lfn->short_ext, ' ', sizeof lfn->short_ext); + + /* Convert short name to upper case (ASCII only). */ + for (j = 0; j < 8; ++j) { + if (strchr (LOWER_ASCII, lfn->short_base[j])) + lfn->short_base[j] -= 32; + } + for (j = 0; j < 3; ++j) { + if (strchr (LOWER_ASCII, lfn->short_ext[j])) + lfn->short_ext[j] -= 32; + } + + /* Convert the original filename to UTF16-LE. Maximum LFN length + * is 0x3f * 13 = 819 UCS-2 characters. + */ + if (convert_to_utf16le (lfn->name, &lfn->lfn, &lfn->lfn_size) == -1) + return -1; + if (lfn->lfn_size > 2*819) { + nbdkit_error ("%s: filename is too long", lfn->name); + return -1; + } + } + + /* Now we must see if some short filenames are duplicates and + * rename them. XXX Unfortunately O(n^2). + */ + for (i = 1; i < n; ++i) { + for (j = 0; j < i; ++j) { + if (memcmp (lfns[i].short_base, lfns[j].short_base, 8) == 0 && + memcmp (lfns[i].short_ext, lfns[j].short_ext, 3) == 0) { + char s[9]; + ssize_t k; + + /* Entry i is a duplicate of j (j < i). So we will rename i. */ + lfn = &lfns[i]; + + len = snprintf (s, sizeof s, "~%zu", i); + assert (len >= 2 && len <= 8); + + k = 8-len; + while (k > 0 && lfn->short_base[k] == ' ') + k--; + memcpy (&lfn->short_base[k], s, len); + } + } + } + + return 0; +} + +static const char lfn_encoding[] = + "UTF-16LE" +#ifdef __GNU_LIBRARY__ + "//TRANSLIT" +#endif + ; + +static int +convert_to_utf16le (const char *name, char **out, size_t *output_len) +{ + iconv_t ic; + const size_t input_len = strlen (name); + size_t outalloc, inlen, outlen, prev, r; + const char *inp; + char *outp; + + /* XXX Assumes current locale is UTF-8. */ + ic = iconv_open (lfn_encoding, "UTF-8"); + if (ic == (iconv_t)-1) { + nbdkit_error ("iconv: %m"); + return -1; + } + outalloc = input_len; + + again: + inlen = input_len; + outlen = outalloc; + *out = malloc (outlen + 1); + if (*out == NULL) { + nbdkit_error ("malloc: %m"); + iconv_close (ic); + return -1; + } + inp = name; + outp = *out; + + r = iconv (ic, (char **) &inp, &inlen, &outp, &outlen); + if (r == (size_t)-1) { + if (errno == E2BIG) { + prev = outalloc; + /* Try again with a larger buffer. */ + free (*out); + *out = NULL; + outalloc *= 2; + if (outalloc < prev) { + nbdkit_error ("iconv: %m"); + iconv_close (ic); + return -1; + } + /* Erase errno so we don't return it to the caller by accident. */ + errno = 0; + goto again; + } + else { + /* EILSEQ etc. */ + nbdkit_error ("iconv: %s: %m", name); + free (*out); + *out = NULL; + iconv_close (ic); + return -1; + } + } + *outp = '\0'; + iconv_close (ic); + if (output_len != NULL) + *output_len = outp - *out; + + return 0; +} + +static void +free_lfns (struct lfn *lfns, size_t n) +{ + size_t i; + + for (i = 0; i < n; ++i) + free (lfns[i].lfn); + free (lfns); +} + +/* Extend dirs[di].table by 1 directory entry. */ +static ssize_t +extend_dir_table (size_t di, struct virtual_floppy *floppy) +{ + struct dir_entry *p; + size_t i; + + i = floppy->dirs[di].table_entries; + p = realloc (floppy->dirs[di].table, sizeof (struct dir_entry) * (i+1)); + if (p == NULL) { + nbdkit_error ("realloc: %m"); + return -1; + } + floppy->dirs[di].table = p; + floppy->dirs[di].table_entries++; + memset (&floppy->dirs[di].table[i], 0, sizeof (struct dir_entry)); + return i; +} + +/* In create_directory / add_directory_entry above we run before we + * have finalised the .first_cluster fields (because that cannot be + * done until we have sized all the directories). Here we fix the + * directory entries with the final cluster number. Note we must only + * touch plain directory entries (not the volume label or LFN). + */ +int +update_directory_first_cluster (size_t di, struct virtual_floppy *floppy) +{ + size_t i, j, pdi; + const size_t nr_subdirs = floppy->dirs[di].nr_subdirs; + const size_t nr_files = floppy->dirs[di].nr_files; + uint32_t first_cluster; + struct dir_entry *entry; + + /* NB: This function makes assumptions about the order in which + * subdirectories and files are added to the table so that we can + * avoid having to maintain another mapping from subdirs/files to + * table entries. + */ + i = 0; + for (j = 0; j < floppy->dirs[di].table_entries; ++j) { + entry = &floppy->dirs[di].table[j]; + + /* Skip LFN entries. */ + if (entry->attributes == 0xf) + continue; /* don't increment i */ + + /* Skip the volume label in the root directory. */ + if (entry->attributes == DIR_ENTRY_VOLUME_LABEL) + continue; /* don't increment i */ + + /* Set the first cluster of the "." entry to point to self. */ + if (entry->attributes == DIR_ENTRY_SUBDIRECTORY && + memcmp (entry->name, ". ", 11) == 0) { + first_cluster = floppy->dirs[di].first_cluster; + entry->cluster_hi = htole16 (first_cluster >> 16); + entry->cluster_lo = htole16 (first_cluster & 0xffff); + continue; /* don't increment i */ + } + + /* Set the first cluster of the ".." entry to point to parent. */ + if (entry->attributes == DIR_ENTRY_SUBDIRECTORY && + memcmp (entry->name, ".. ", 11) == 0) { + pdi = floppy->dirs[di].pdi; + first_cluster = floppy->dirs[pdi].first_cluster; + entry->cluster_hi = htole16 (first_cluster >> 16); + entry->cluster_lo = htole16 (first_cluster & 0xffff); + continue; /* don't increment i */ + } + + /* Otherwise it's a short name entry so we must now update the + * first cluster. + */ + if (i < nr_subdirs) { + const size_t sdi = floppy->dirs[di].subdirs[i]; + assert (sdi < floppy->nr_dirs); + first_cluster = floppy->dirs[sdi].first_cluster; + } + else if (i < nr_subdirs + nr_files) { + const size_t fi = floppy->dirs[di].files[i-nr_subdirs]; + assert (fi < floppy->nr_files); + first_cluster = floppy->files[fi].first_cluster; + } + else + abort (); + + entry->cluster_hi = htole16 (first_cluster >> 16); + entry->cluster_lo = htole16 (first_cluster & 0xffff); + ++i; + } + + return 0; +} diff --git a/plugins/floppy/floppy.c b/plugins/floppy/floppy.c new file mode 100644 index 0000000..ebdea5b --- /dev/null +++ b/plugins/floppy/floppy.c @@ -0,0 +1,206 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include + +#include + +#include "regions.h" + +#include "virtual-floppy.h" + +/* Directory. */ +static char *dir = NULL; + +/* Volume label. */ +static const char *label = "NBDKITFLOPY"; + +/* Virtual floppy. */ +static struct virtual_floppy floppy; + +static void +floppy_load (void) +{ + init_virtual_floppy (&floppy); +} + +static void +floppy_unload (void) +{ + free (dir); + free_virtual_floppy (&floppy); +} + +static int +floppy_config (const char *key, const char *value) +{ + if (strcmp (key, "dir") == 0) { + if (dir != NULL) { + /* TODO: Support merging of multiple directories, like iso plugin. */ + nbdkit_error ("dir= must only be set once"); + return -1; + } + dir = nbdkit_realpath (value); + if (dir == NULL) + return -1; + } + else if (strcmp (key, "label") == 0) { + label = value; + } + else { + nbdkit_error ("unknown parameter '%s'", key); + return -1; + } + + return 0; +} + +static int +floppy_config_complete (void) +{ + if (dir == NULL) { + nbdkit_error ("you must supply the dir= parameter " + "after the plugin name on the command line"); + return -1; + } + + return create_virtual_floppy (dir, label, &floppy); +} + +#define floppy_config_help \ + "dir= (required) The directory to serve.\n" \ + "label= is used instead. +There must be enough free space here to store the ISO, which might be +quite large. + +=back + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/plugins/libvirt/Makefile.am b/plugins/libvirt/Makefile.am new file mode 100644 index 0000000..d6365b6 --- /dev/null +++ b/plugins/libvirt/Makefile.am @@ -0,0 +1,67 @@ +# nbdkit +# Copyright (C) 2013 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-libvirt-plugin.pod + +if HAVE_LIBVIRT + +plugin_LTLIBRARIES = nbdkit-libvirt-plugin.la + +nbdkit_libvirt_plugin_la_SOURCES = \ + libvirt-plugin.c \ + $(top_srcdir)/include/nbdkit-plugin.h + +nbdkit_libvirt_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/include +nbdkit_libvirt_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) \ + $(LIBVIRT_CFLAGS) +nbdkit_libvirt_plugin_la_LIBADD = \ + $(LIBVIRT_LIBS) +nbdkit_libvirt_plugin_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms + +if HAVE_POD + +man_MANS = nbdkit-libvirt-plugin.1 +CLEANFILES += $(man_MANS) + +nbdkit-libvirt-plugin.1: nbdkit-libvirt-plugin.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD + +endif diff --git a/plugins/libvirt/Makefile.in b/plugins/libvirt/Makefile.in new file mode 100644 index 0000000..b8b714a --- /dev/null +++ b/plugins/libvirt/Makefile.in @@ -0,0 +1,892 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2013 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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-0,0 +1,220 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* libvirt-plugin: + * + * This uses the libvirt virDomainBlockPeek API to access the disks of + * libvirt guests, even remotely. This only works read-only (since + * libvirt does not have an equivalent write API). + * + * http://libvirt.org/html/libvirt-libvirt.html#virDomainBlockPeek + * + * Note to compile this, ./configure must be able to find libvirt. + * To unconditionally disable this plugin, use ./configure --without-libvirt + */ + +#include + +#include +#include +#include +#include +#include + +#include + +#include + +/* Configuration. */ +static const char *connect = NULL; +static const char *domain = NULL; +static const char *disk = NULL; + +static int +virt_config (const char *key, const char *value) +{ + if (strcmp (key, "connect") == 0) { + connect = value; + } + else if (strcmp (key, "domain") == 0) { + domain = value; + } + else if (strcmp (key, "disk") == 0) { + disk = value; + } + else { + nbdkit_error ("unknown parameter '%s'", key); + return -1; + } + + return 0; +} + +static int +virt_config_complete (void) +{ + if (domain == NULL) { + nbdkit_error ("the 'domain' parameter is required"); + return -1; + } + if (disk == NULL) { + nbdkit_error ("the 'disk' parameter is required"); + return -1; + } + return 0; +} + +#define virt_config_help \ + "connect= (optional) libvirt connection URI\n" \ + "domain= (required) libvirt domain name\n" \ + "disk= (required) guest disk name" + +/* The per-connection handle. */ +struct virt_handle { + virConnectPtr conn; + virDomainPtr dom; + uint64_t exportsize; +}; + +/* Create the per-connection handle. */ +static void * +virt_open (int readonly) +{ + struct virt_handle *h; + virDomainBlockInfo info; + + h = malloc (sizeof *h); + if (h == NULL) { + nbdkit_error ("malloc: %m"); + return NULL; + } + + /* Connect to libvirt. */ + h->conn = virConnectOpen (connect); + if (!h->conn) { + nbdkit_error ("virConnectOpen failed, see earlier error messages"); + goto err1; + } + + /* Open the domain. */ + h->dom = virDomainLookupByName (h->conn, domain); + if (!h->dom) { + nbdkit_error ("virDomainLookupByName: " + "cannot open domain '%s'", domain); + goto err2; + } + + if (virDomainGetBlockInfo (h->dom, disk, &info, 0) == -1) { + nbdkit_error ("virDomainGetBlockInfo: " + "cannot read information about disk '%s' from domain '%s'", + disk, domain); + goto err3; + } + h->exportsize = info.physical; + + return h; + +err3: + virDomainFree (h->dom); +err2: + virConnectClose (h->conn); +err1: + free (h); + return NULL; +} + +/* Free up the per-connection handle. */ +static void +virt_close (void *handle) +{ + struct virt_handle *h = handle; + + virDomainFree (h->dom); + virConnectClose (h->conn); + free (h); +} + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS + +/* Get the file size. */ +static int64_t +virt_get_size (void *handle) +{ + struct virt_handle *h = handle; + + return h->exportsize; +} + +/* Read data from the file. */ +static int +virt_pread (void *handle, void *buf, uint32_t count, uint64_t offset) +{ + struct virt_handle *h = handle; + uint32_t c; + + while (count > 0) { + /* Limit requests to 1MB, which was the limit in 0.9.13 (it has since + * been raised). + */ + c = count; + if (c > 1024*1024) + c = 1024*1024; + + if (virDomainBlockPeek (h->dom, disk, offset, c, buf, 0) == -1) { + nbdkit_error ("virDomainBlockPeek: cannot read block from disk '%s'", + disk); + errno = EIO; + return -1; + } + + buf += c; + count -= c; + offset += c; + } + + return 0; +} + +static struct nbdkit_plugin plugin = { + .name = "libvirt", + .longname = "nbdkit libvirt plugin", + .version = PACKAGE_VERSION, + .config = virt_config, + .config_complete = virt_config_complete, + .config_help = virt_config_help, + .open = virt_open, + .close = virt_close, + .get_size = virt_get_size, + .pread = virt_pread, +}; + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/plugins/libvirt/nbdkit-libvirt-plugin.pod b/plugins/libvirt/nbdkit-libvirt-plugin.pod new file mode 100644 index 0000000..604d03a --- /dev/null +++ b/plugins/libvirt/nbdkit-libvirt-plugin.pod @@ -0,0 +1,62 @@ +=head1 NAME + +nbdkit-libvirt-plugin - nbdkit libvirt plugin using virDomainBlockPeek + +=head1 SYNOPSIS + + nbdkit libvirt [connect=URI] domain=DOMAIN disk=DISK + +=head1 EXAMPLE + + nbdkit libvirt domain=MyGuest disk=sda + guestfish --ro --format=raw -a nbd://localhost + +=head1 DESCRIPTION + +C is an L plugin that lets you +access libvirt guest disks. Only read-only access is possible. It is +implemented using the libvirt C API. It can also +be used over remote libvirt connections. + +=head1 PARAMETERS + +=over 4 + +=item BURI + +This optional parameter specifies the libvirt connection URI. + +=item BDOMAIN + +This required parameter specifies the libvirt domain name +(guest name). + +=item BDISK + +This required parameter specifies the guest's disk that we want to +read. + +You can either give the path to the backing device (F) +or the target name (eg. C). + +In either case use C to list possible disks. +Look for Ssource dev=...E>> or +Ssource file=...E>> or +Starget dev=...E>> in the XML. + +=back + +=head1 SEE ALSO + +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2013-2018 Red Hat Inc. diff --git a/plugins/linuxdisk/Makefile.am b/plugins/linuxdisk/Makefile.am new file mode 100644 index 0000000..604e127 --- /dev/null +++ b/plugins/linuxdisk/Makefile.am @@ -0,0 +1,72 @@ +# nbdkit +# Copyright (C) 2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-linuxdisk-plugin.pod + +plugin_LTLIBRARIES = nbdkit-linuxdisk-plugin.la + +nbdkit_linuxdisk_plugin_la_SOURCES = \ + filesystem.c \ + linuxdisk.c \ + partition-gpt.c \ + virtual-disk.c \ + virtual-disk.h \ + $(top_srcdir)/include/nbdkit-plugin.h + +nbdkit_linuxdisk_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/common/gpt \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/common/regions \ + -I$(top_srcdir)/common/utils \ + -I$(top_srcdir)/include +nbdkit_linuxdisk_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_linuxdisk_plugin_la_LIBADD = \ + $(top_builddir)/common/gpt/libgpt.la \ + $(top_builddir)/common/regions/libregions.la \ + $(top_builddir)/common/utils/libutils.la +nbdkit_linuxdisk_plugin_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms + +if HAVE_POD + +man_MANS = nbdkit-linuxdisk-plugin.1 +CLEANFILES += $(man_MANS) + +nbdkit-linuxdisk-plugin.1: nbdkit-linuxdisk-plugin.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/plugins/linuxdisk/Makefile.in b/plugins/linuxdisk/Makefile.in new file mode 100644 index 0000000..ef20c3d --- /dev/null +++ b/plugins/linuxdisk/Makefile.in @@ -0,0 +1,934 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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mostlyclean-compile \ + mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \ + tags tags-am uninstall uninstall-am uninstall-man \ + uninstall-man1 uninstall-pluginLTLIBRARIES + +.PRECIOUS: Makefile + + +@HAVE_POD_TRUE@nbdkit-linuxdisk-plugin.1: nbdkit-linuxdisk-plugin.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/plugins/linuxdisk/filesystem.c b/plugins/linuxdisk/filesystem.c new file mode 100644 index 0000000..4761641 --- /dev/null +++ b/plugins/linuxdisk/filesystem.c @@ -0,0 +1,253 @@ +/* nbdkit + * Copyright (C) 2018-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "minmax.h" +#include "rounding.h" +#include "utils.h" + +#include "virtual-disk.h" + +static int64_t estimate_size (void); +static int mke2fs (const char *filename); + +int +create_filesystem (struct virtual_disk *disk) +{ + const char *tmpdir; + char *filename = NULL; + int fd = -1; + + /* Estimate the filesystem size and compute the final virtual size + * of the disk. We only need to do this if the user didn't specify + * the exact size on the command line. + */ + if (size == 0 || size_add_estimate) { + int64_t estimate; + + estimate = estimate_size (); + if (estimate == -1) + goto error; + + nbdkit_debug ("filesystem size estimate: %" PRIi64, estimate); + + /* Add 20% to the estimate to account for the overhead of + * filesystem metadata. Also set a minimum size. Note we are + * only wasting virtual space (since this will be stored sparsely + * under $TMPDIR) so we can be generous here. + */ + estimate = estimate * 6 / 5; + estimate = MAX (estimate, 1024*1024); + + /* For ext3 and ext4, add something for the journal. */ + if (strncmp (type, "ext", 3) == 0 && type[3] > '2') + estimate += 32*1024*1024; + + if (size_add_estimate) + size += estimate; + else + size = estimate; + } + + /* Round the final size up to a whole number of sectors. */ + size = ROUND_UP (size, SECTOR_SIZE); + + nbdkit_debug ("filesystem virtual size: %" PRIi64, size); + + /* Create the filesystem file. */ + tmpdir = getenv ("TMPDIR"); + if (tmpdir == NULL) + tmpdir = LARGE_TMPDIR; + if (asprintf (&filename, "%s/linuxdiskXXXXXX", tmpdir) == -1) { + nbdkit_error ("asprintf: %m"); + goto error; + } + + fd = mkstemp (filename); + if (fd == -1) { + nbdkit_error ("mkstemp: %s: %m", filename); + goto error; + } + if (ftruncate (fd, size) == -1) { + nbdkit_error ("ftruncate: %s: %m", filename); + goto error; + } + + /* Create the filesystem. */ + if (mke2fs (filename) == -1) + goto error; + + unlink (filename); + free (filename); + disk->filesystem_size = size; + disk->fd = fd; + return 0; + + error: + if (fd >= 0) + close (fd); + if (filename) { + unlink (filename); + free (filename); + } + return -1; +} + +/* Use ‘du’ to estimate the size of the filesystem quickly. We use + * the -c option to allow the possibility of supporting multiple + * directories in future. + * + * Typical output from ‘du -cs dir1 dir2’ is: + * + * 12345 dir1 + * 34567 dir2 + * 46912 total + * + * We ignore everything except the first number on the last line. + */ +static int64_t +estimate_size (void) +{ + char *command = NULL, *line = NULL; + size_t len = 0; + FILE *fp; + int64_t ret; + int r; + + /* Create the du command. */ + fp = open_memstream (&command, &len); + if (fp == NULL) { + nbdkit_error ("open_memstream: %m"); + return -1; + } + fprintf (fp, "du -c -k -s "); + shell_quote (dir, fp); + if (fclose (fp) == EOF) { + nbdkit_error ("memstream failed: %m"); + return -1; + } + + /* Run the command. */ + nbdkit_debug ("%s", command); + fp = popen (command, "r"); + free (command); + if (fp == NULL) { + nbdkit_error ("du command failed: %m"); + return -1; + } + + /* Ignore everything up to the last line. */ + len = 0; + while (getline (&line, &len, fp) != -1) + /* empty */; + if (ferror (fp)) { + nbdkit_error ("getline failed: %m"); + free (line); + pclose (fp); + return -1; + } + + r = pclose (fp); + if (r == -1) { + nbdkit_error ("pclose: %m"); + free (line); + return -1; + } + if (exit_status_to_nbd_error (r, "pclose: du") == -1) + return -1; + + /* Parse the last line. */ + if (sscanf (line, "%" SCNi64, &ret) != 1 || ret < 0) { + nbdkit_error ("could not parse last line of output: %s", line); + free (line); + return -1; + } + free (line); + + /* Result is in 1K blocks, convert it to bytes. */ + ret *= 1024; + return ret; +} + +static int +mke2fs (const char *filename) +{ + char *command = NULL; + size_t len = 0; + FILE *fp; + int r; + + /* Create the mke2fs command. */ + fp = open_memstream (&command, &len); + if (fp == NULL) { + nbdkit_error ("open_memstream: %m"); + return -1; + } + + fprintf (fp, "mke2fs -q -F -t %s ", type); + if (label) { + fprintf (fp, "-L "); + shell_quote (label, fp); + fprintf (fp, " "); + } + fprintf (fp, "-d "); + shell_quote (dir, fp); + fprintf (fp, " "); + shell_quote (filename, fp); + + if (fclose (fp) == EOF) { + nbdkit_error ("memstream failed: %m"); + return -1; + } + + /* Run the command. */ + nbdkit_debug ("%s", command); + r = system (command); + free (command); + if (exit_status_to_nbd_error (r, "mke2fs") == -1) + return -1; + + return 0; +} diff --git a/plugins/linuxdisk/linuxdisk.c b/plugins/linuxdisk/linuxdisk.c new file mode 100644 index 0000000..1ba7114 --- /dev/null +++ b/plugins/linuxdisk/linuxdisk.c @@ -0,0 +1,228 @@ +/* nbdkit + * Copyright (C) 2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include + +#define NBDKIT_API_VERSION 2 + +#include + +#include "random.h" +#include "regions.h" + +#include "virtual-disk.h" + +/* Directory, label, type, size parameters. */ +char *dir; +const char *label; +const char *type = "ext2"; +int64_t size; +bool size_add_estimate; /* if size=+SIZE was used */ + +/* Virtual disk. */ +static struct virtual_disk disk; + +/* Used to create a random GUID for the partition. */ +struct random_state random_state; + +static void +linuxdisk_load (void) +{ + init_virtual_disk (&disk); + xsrandom (time (NULL), &random_state); +} + +static void +linuxdisk_unload (void) +{ + free_virtual_disk (&disk); + free (dir); +} + +static int +linuxdisk_config (const char *key, const char *value) +{ + if (strcmp (key, "dir") == 0) { + if (dir != NULL) { + /* TODO: Support merging of multiple directories, like iso plugin. */ + nbdkit_error ("dir= must only be set once"); + return -1; + } + dir = nbdkit_realpath (value); + if (dir == NULL) + return -1; + } + else if (strcmp (key, "label") == 0) { + label = value; + } + else if (strcmp (key, "type") == 0) { + if (strncmp (value, "ext", 3) != 0) { + nbdkit_error ("type= must be an filesystem type " + "supported by e2fsprogs"); + return -1; + } + type = value; + } + else if (strcmp (key, "size") == 0) { + if (value[0] == '+') { + size_add_estimate = true; + value++; + } + else + size_add_estimate = false; + size = nbdkit_parse_size (value); + if (size == -1) + return -1; + } + else { + nbdkit_error ("unknown parameter '%s'", key); + return -1; + } + + return 0; +} + +static int +linuxdisk_config_complete (void) +{ + if (dir == NULL) { + nbdkit_error ("you must supply the dir= parameter " + "after the plugin name on the command line"); + return -1; + } + + return create_virtual_disk (&disk); +} + +#define linuxdisk_config_help \ + "dir= (required) The directory to serve.\n" \ + "label= by default. You can override this location by setting the +C environment variable before starting nbdkit. + +=back + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2019 Red Hat Inc. diff --git a/plugins/linuxdisk/partition-gpt.c b/plugins/linuxdisk/partition-gpt.c new file mode 100644 index 0000000..81a530d --- /dev/null +++ b/plugins/linuxdisk/partition-gpt.c @@ -0,0 +1,211 @@ +/* nbdkit + * Copyright (C) 2018-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "byte-swapping.h" +#include "efi-crc32.h" +#include "gpt.h" +#include "isaligned.h" +#include "rounding.h" +#include "regions.h" + +#include "virtual-disk.h" + +#define PARTITION_TYPE_GUID "0FC63DAF-8483-4772-8E79-3D69D8477DE4" + +static void create_gpt_protective_mbr (struct virtual_disk *disk, + unsigned char *out); +static void create_gpt_partition_header (struct virtual_disk *disk, + const void *pt, bool is_primary, + unsigned char *out); +static void create_gpt_partition_table (struct virtual_disk *disk, + unsigned char *out); + +/* Initialize the partition table structures. */ +int +create_partition_table (struct virtual_disk *disk) +{ + create_gpt_protective_mbr (disk, disk->protective_mbr); + + create_gpt_partition_table (disk, disk->pt); + + create_gpt_partition_header (disk, disk->pt, true, disk->primary_header); + create_gpt_partition_header (disk, disk->pt, false, disk->secondary_header); + + return 0; +} + +static void +chs_too_large (unsigned char *out) +{ + const int c = 1023, h = 254, s = 63; + + out[0] = h; + out[1] = (c & 0x300) >> 2 | s; + out[2] = c & 0xff; +} + +static void +create_mbr_partition_table_entry (const struct region *region, + bool bootable, int partition_id, + unsigned char *out) +{ + uint64_t start_sector, nr_sectors; + uint32_t u32; + + assert (IS_ALIGNED (region->start, SECTOR_SIZE)); + + start_sector = region->start / SECTOR_SIZE; + nr_sectors = DIV_ROUND_UP (region->len, SECTOR_SIZE); + + assert (start_sector <= UINT32_MAX); + assert (nr_sectors <= UINT32_MAX); + + out[0] = bootable ? 0x80 : 0; + chs_too_large (&out[1]); + out[4] = partition_id; + chs_too_large (&out[5]); + u32 = htole32 (start_sector); + memcpy (&out[8], &u32, 4); + u32 = htole32 (nr_sectors); + memcpy (&out[12], &u32, 4); +} + +static void +create_gpt_protective_mbr (struct virtual_disk *disk, unsigned char *out) +{ + struct region region; + uint64_t end; + + /* Protective MBR creates an MBR partition with partition ID 0xee + * which covers the whole of the disk, or as much of the disk as + * expressible with MBR. + */ + region.start = 512; + end = virtual_size (&disk->regions) - 1; + if (end > UINT32_MAX * SECTOR_SIZE) + end = UINT32_MAX * SECTOR_SIZE; + region.end = end; + region.len = region.end - region.start + 1; + + create_mbr_partition_table_entry (®ion, false, 0xee, &out[0x1be]); + + /* Boot sector signature. */ + out[0x1fe] = 0x55; + out[0x1ff] = 0xaa; +} + +static void +create_gpt_partition_header (struct virtual_disk *disk, + const void *pt, bool is_primary, + unsigned char *out) +{ + uint64_t nr_lbas; + struct gpt_header *header = (struct gpt_header *) out; + + nr_lbas = virtual_size (&disk->regions) / SECTOR_SIZE; + + memset (header, 0, sizeof *header); + memcpy (header->signature, GPT_SIGNATURE, sizeof (header->signature)); + memcpy (header->revision, GPT_REVISION, sizeof (header->revision)); + header->header_size = htole32 (sizeof *header); + if (is_primary) { + header->current_lba = htole64 (1); + header->backup_lba = htole64 (nr_lbas - 1); + } + else { + header->current_lba = htole64 (nr_lbas - 1); + header->backup_lba = htole64 (1); + } + header->first_usable_lba = htole64 (34); + header->last_usable_lba = htole64 (nr_lbas - 34); + if (is_primary) + header->partition_entries_lba = htole64 (2); + else + header->partition_entries_lba = htole64 (nr_lbas - 33); + header->nr_partition_entries = htole32 (GPT_MIN_PARTITIONS); + header->size_partition_entry = htole32 (GPT_PT_ENTRY_SIZE); + header->crc_partitions = + htole32 (efi_crc32 (pt, GPT_PT_ENTRY_SIZE * GPT_MIN_PARTITIONS)); + + /* Must be computed last. */ + header->crc = htole32 (efi_crc32 (header, sizeof *header)); +} + +static void +create_gpt_partition_table_entry (const struct region *region, + bool bootable, + char partition_type_guid[16], + char guid[16], + unsigned char *out) +{ + struct gpt_entry *entry = (struct gpt_entry *) out; + + assert (sizeof (struct gpt_entry) == GPT_PT_ENTRY_SIZE); + + memcpy (entry->partition_type_guid, partition_type_guid, 16); + memcpy (entry->unique_guid, guid, 16); + + entry->first_lba = htole64 (region->start / SECTOR_SIZE); + entry->last_lba = htole64 (region->end / SECTOR_SIZE); + entry->attributes = htole64 (bootable ? 4 : 0); +} + +static void +create_gpt_partition_table (struct virtual_disk *disk, unsigned char *out) +{ + size_t j; + + for (j = 0; j < nr_regions (&disk->regions); ++j) { + const struct region *region = get_region (&disk->regions, j); + + /* Find the (only) partition region, which has type region_file. */ + if (region->type == region_file) { + create_gpt_partition_table_entry (region, true, + PARTITION_TYPE_GUID, + disk->guid, + out); + out += GPT_PT_ENTRY_SIZE; + } + } +} diff --git a/plugins/linuxdisk/virtual-disk.c b/plugins/linuxdisk/virtual-disk.c new file mode 100644 index 0000000..f2e789e --- /dev/null +++ b/plugins/linuxdisk/virtual-disk.c @@ -0,0 +1,160 @@ +/* nbdkit + * Copyright (C) 2018-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "random.h" +#include "regions.h" + +#include "virtual-disk.h" + +static int create_regions (struct virtual_disk *disk); + +void +init_virtual_disk (struct virtual_disk *disk) +{ + memset (disk, 0, sizeof *disk); + disk->fd = -1; + + init_regions (&disk->regions); +} + +int +create_virtual_disk (struct virtual_disk *disk) +{ + size_t i; + + /* Allocate the partition table structures. We can't fill them in + * until we have created the disk layout. + */ + disk->protective_mbr = calloc (1, SECTOR_SIZE); + disk->primary_header = calloc (1, SECTOR_SIZE); + disk->pt = calloc (1, 32*SECTOR_SIZE); + disk->secondary_header = calloc (1, SECTOR_SIZE); + if (disk->protective_mbr == NULL || + disk->primary_header == NULL || + disk->pt == NULL || + disk->secondary_header == NULL) { + nbdkit_error ("calloc: %m"); + return -1; + } + + /* Create the filesystem. This fills in disk->filesystem_size and + * disk->id. + */ + if (create_filesystem (disk) == -1) + return -1; + + /* Create a random GUID used as "Unique partition GUID". However + * this doesn't follow GUID conventions so in theory could make an + * invalid value. + */ + for (i = 0; i < 16; ++i) + disk->guid[i] = xrandom (&random_state) & 0xff; + + /* Create the virtual disk regions. */ + if (create_regions (disk) == -1) + return -1; + + /* Initialize partition table structures. This depends on + * disk->regions so must be done last. + */ + if (create_partition_table (disk) == -1) + return -1; + + return 0; +} + +void +free_virtual_disk (struct virtual_disk *disk) +{ + free_regions (&disk->regions); + free (disk->protective_mbr); + free (disk->primary_header); + free (disk->pt); + free (disk->secondary_header); + if (disk->fd >= 0) + close (disk->fd); +} + +/* Lay out the final disk. */ +static int +create_regions (struct virtual_disk *disk) +{ + /* Protective MBR. */ + if (append_region_len (&disk->regions, "Protective MBR", + SECTOR_SIZE, 0, 0, + region_data, (void *) disk->protective_mbr) == -1) + return -1; + + /* GPT primary partition table header (LBA 1). */ + if (append_region_len (&disk->regions, "GPT primary header", + SECTOR_SIZE, 0, 0, + region_data, (void *) disk->primary_header) == -1) + return -1; + + /* GPT primary PT (LBA 2..33). */ + if (append_region_len (&disk->regions, "GPT primary PT", + 32*SECTOR_SIZE, 0, 0, + region_data, (void *) disk->pt) == -1) + return -1; + + /* Partition containing the filesystem. Align it to 2048 sectors. */ + if (append_region_len (&disk->regions, "Filesystem", + disk->filesystem_size, 2048*SECTOR_SIZE, 0, + region_file, 0 /* unused */) == -1) + return -1; + + /* GPT secondary PT (LBA -33..-2). */ + if (append_region_len (&disk->regions, "GPT secondary PT", + 32*SECTOR_SIZE, SECTOR_SIZE, 0, + region_data, (void *) disk->pt) == -1) + return -1; + + /* GPT secondary PT header (LBA -1). */ + if (append_region_len (&disk->regions, "GPT secondary header", + SECTOR_SIZE, 0, 0, + region_data, (void *) disk->secondary_header) == -1) + return -1; + + return 0; +} diff --git a/plugins/linuxdisk/virtual-disk.h b/plugins/linuxdisk/virtual-disk.h new file mode 100644 index 0000000..d157df4 --- /dev/null +++ b/plugins/linuxdisk/virtual-disk.h @@ -0,0 +1,91 @@ +/* nbdkit + * Copyright (C) 2018-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_VIRTUAL_DISK_H +#define NBDKIT_VIRTUAL_DISK_H + +#include +#include + +#include "regions.h" + +extern char *dir; +extern const char *label; +extern const char *type; +extern int64_t size; +extern bool size_add_estimate; + +extern struct random_state random_state; + +#define SECTOR_SIZE 512 + +struct virtual_disk { + /* Virtual disk layout. */ + struct regions regions; + + /* Disk protective MBR. */ + uint8_t *protective_mbr; + + /* GPT primary partition table header. */ + uint8_t *primary_header; + + /* GPT primary and secondary (backup) PTs. These are the same. */ + uint8_t *pt; + + /* GPT secondary (backup) PT header. */ + uint8_t *secondary_header; + + /* Size of the filesystem in bytes. */ + uint64_t filesystem_size; + + /* Unique partition GUID. */ + char guid[16]; + + /* File descriptor of the temporary file containing the filesystem. */ + int fd; +}; + +/* virtual-disk.c */ +extern void init_virtual_disk (struct virtual_disk *disk) + __attribute__((__nonnull__ (1))); +extern int create_virtual_disk (struct virtual_disk *disk) + __attribute__((__nonnull__ (1))); +extern void free_virtual_disk (struct virtual_disk *disk) + __attribute__((__nonnull__ (1))); + +/* partition-gpt.c */ +extern int create_partition_table (struct virtual_disk *disk); + +/* filesystem.c */ +extern int create_filesystem (struct virtual_disk *disk); + +#endif /* NBDKIT_VIRTUAL_DISK_H */ diff --git a/plugins/lua/Makefile.am b/plugins/lua/Makefile.am new file mode 100644 index 0000000..de9842b --- /dev/null +++ b/plugins/lua/Makefile.am @@ -0,0 +1,68 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = \ + nbdkit-lua-plugin.pod \ + example.lua + +if HAVE_LUA + +plugin_LTLIBRARIES = nbdkit-lua-plugin.la + +nbdkit_lua_plugin_la_SOURCES = \ + lua.c \ + $(top_srcdir)/include/nbdkit-plugin.h + +nbdkit_lua_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/include +nbdkit_lua_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) \ + $(LUA_CFLAGS) +nbdkit_lua_plugin_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms \ + $(LUA_LIBS) + +if HAVE_POD + +man_MANS = nbdkit-lua-plugin.3 +CLEANFILES += $(man_MANS) + +nbdkit-lua-plugin.3: nbdkit-lua-plugin.pod + $(PODWRAPPER) --section=3 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD + +endif diff --git a/plugins/lua/Makefile.in b/plugins/lua/Makefile.in new file mode 100644 index 0000000..e588655 --- /dev/null +++ b/plugins/lua/Makefile.in @@ -0,0 +1,888 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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uninstall-pluginLTLIBRARIES + +.PRECIOUS: Makefile + + +@HAVE_LUA_TRUE@@HAVE_POD_TRUE@nbdkit-lua-plugin.3: nbdkit-lua-plugin.pod +@HAVE_LUA_TRUE@@HAVE_POD_TRUE@ $(PODWRAPPER) --section=3 --man $@ \ +@HAVE_LUA_TRUE@@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_LUA_TRUE@@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/plugins/lua/example.lua b/plugins/lua/example.lua new file mode 100644 index 0000000..f5c2f2b --- /dev/null +++ b/plugins/lua/example.lua @@ -0,0 +1,82 @@ +-- Example Lua plugin. +-- +-- This example can be freely used for any purpose. + +-- Run it from the build directory like this: +-- +-- ./nbdkit -f -v lua ./plugins/lua/example.lua file=disk.img +-- +-- Or run it after installing nbdkit like this: +-- +-- nbdkit -f -v lua ./plugins/lua/example.lua file=disk.img +-- +-- The -f -v arguments are optional. They cause the server to stay in +-- the foreground and print debugging, which is useful when testing. +-- +-- You can connect to the server using guestfish or qemu, eg: +-- +-- guestfish --format=raw -a nbd://localhost +-- > run +-- > part-disk /dev/sda mbr +-- > mkfs ext2 /dev/sda1 +-- > list-filesystems +-- > mount /dev/sda1 / +-- > [etc] + +-- This is called from: nbdkit lua example.lua --dump-plugin +function dump_plugin () + print ("example_lua=1") +end + +-- We expect a file=... parameter pointing to the file to serve. +function config (key, value) + if key == "file" then + file = value + else + error ("unknown parameter " .. key .. "=" .. value) + end +end + +-- Check the file parameter was passed. +function config_complete () + if not file then + error ("file parameter missing") + end +end + +-- Open a new client connection. +function open (readonly) + -- Open the file. + local flags + if readonly then + flags="rb" + else + flags="r+b" + end + local fh = assert (io.open (file, flags)) + + -- We can return any Lua object as the handle. In this + -- plugin it's convenient to return the file handle. + return fh +end + +-- Close a client connection. +function close (fh) + assert (fh:close()) +end + +function get_size (fh) + local size = assert (fh:seek ("end")) + return size +end + +function pread (fh, count, offset) + assert (fh:seek ("set", offset)) + local data = assert (fh:read (count)) + return data +end + +function pwrite (fh, buf, offset) + assert (fh:seek ("set", offset)) + assert (fh:write (buf)) +end diff --git a/plugins/lua/lua.c b/plugins/lua/lua.c new file mode 100644 index 0000000..63ab16d --- /dev/null +++ b/plugins/lua/lua.c @@ -0,0 +1,554 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include + +/* Backwards compatibility function for Lua 5.1. + * + * This is taken from https://github.com/keplerproject/lua-compat-5.3 + * where it is distributed under a compatible license to nbdkit. + */ +#ifndef HAVE_LUA_ISINTEGER +static int +lua_isinteger (lua_State *L, int index) +{ + if (lua_type (L, index) == LUA_TNUMBER) { + lua_Number n = lua_tonumber (L, index); + lua_Integer i = lua_tointeger (L, index); + + if (i == n) + return 1; + } + return 0; +} +#endif /* HAVE_LUA_ISINTEGER */ + +static lua_State *L; +static const char *script; + +static void +lua_plugin_load (void) +{ + L = luaL_newstate (); + if (L == NULL) { + nbdkit_error ("could not create Lua interpreter: %m"); + exit (EXIT_FAILURE); + } + luaL_openlibs (L); +} + +static void +lua_plugin_unload (void) +{ + if (L) + lua_close (L); +} + +/* Test if a function was defined by the Lua code. */ +static int +function_defined (const char *name) +{ + int r; + + lua_getglobal (L, name); + r = lua_isfunction (L, -1) == 1; + lua_pop (L, 1); + return r; +} + +static void +lua_plugin_dump_plugin (void) +{ +#ifdef LUA_VERSION_MAJOR + printf ("lua_version=%s", LUA_VERSION_MAJOR); +#ifdef LUA_VERSION_MINOR + printf (".%s", LUA_VERSION_MINOR); +#ifdef LUA_VERSION_RELEASE + printf (".%s", LUA_VERSION_RELEASE); +#endif +#endif + printf ("\n"); +#endif + + if (script && function_defined ("dump_plugin")) { + lua_getglobal (L, "dump_plugin"); + if (lua_pcall (L, 0, 0, 0) != 0) { + nbdkit_error ("dump_plugin: %s", lua_tostring (L, -1)); + lua_pop (L, 1); + } + } +} + +static int +lua_plugin_config (const char *key, const char *value) +{ + if (!script) { + /* The first parameter MUST be "script". */ + if (strcmp (key, "script") != 0) { + nbdkit_error ("the first parameter must be script=/path/to/script.lua"); + return -1; + } + script = value; + + assert (L); + + /* Load the Lua file. */ + if (luaL_loadfile (L, script) != 0) { + /* We don't need to print the script name because it's + * contained in the error message (as well as the line number). + */ + nbdkit_error ("could not parse Lua script %s", lua_tostring (L, -1)); + lua_pop (L, 1); + return -1; + } + if (lua_pcall (L, 0, 0, 0) != 0) { + nbdkit_error ("could not run Lua script: %s", lua_tostring (L, -1)); + lua_pop (L, 1); + return -1; + } + + /* Minimal set of callbacks which are required (by nbdkit itself). */ + if (!function_defined ("open") || + !function_defined ("get_size") || + !function_defined ("pread")) { + nbdkit_error ("%s: one of the required callbacks " + "'open', 'get_size' or 'pread' " + "is not defined by this Lua script. " + "nbdkit requires these callbacks.", script); + return -1; + } + } + else if (function_defined ("config")) { + lua_getglobal (L, "config"); + lua_pushstring (L, key); + lua_pushstring (L, value); + if (lua_pcall (L, 2, 0, 0) != 0) { + nbdkit_error ("config: %s", lua_tostring (L, -1)); + lua_pop (L, 1); + return -1; + } + return 0; + } + else { + /* Emulate what core nbdkit does if a config callback is NULL. */ + nbdkit_error ("%s: this plugin does not need command line configuration", + script); + return -1; + } + + return 0; +} + +static int +lua_plugin_config_complete (void) +{ + if (function_defined ("config_complete")) { + lua_getglobal (L, "config_complete"); + if (lua_pcall (L, 0, 0, 0) != 0) { + nbdkit_error ("config_complete: %s", lua_tostring (L, -1)); + lua_pop (L, 1); + return -1; + } + return 0; + } + + return 0; +} + +static void * +lua_plugin_open (int readonly) +{ + int *h; + + /* We store a Lua reference (an integer) in the handle. */ + h = malloc (sizeof *h); + if (h == NULL) { + nbdkit_error ("malloc: %m"); + return NULL; + } + + lua_getglobal (L, "open"); + lua_pushboolean (L, readonly); + if (lua_pcall (L, 1, 1, 0) != 0) { + nbdkit_error ("open: %s", lua_tostring (L, -1)); + lua_pop (L, 1); + free (h); + return NULL; + } + + /* Create a reference to the Lua handle returned by open(). */ + *h = luaL_ref (L, LUA_REGISTRYINDEX); + + return h; +} + +static void +lua_plugin_close (void *handle) +{ + int *h = handle; + + if (function_defined ("close")) { + lua_getglobal (L, "close"); + lua_rawgeti (L, LUA_REGISTRYINDEX, *h); + if (lua_pcall (L, 1, 0, 0) != 0) { + nbdkit_error ("close: %s", lua_tostring (L, -1)); + lua_pop (L, 1); + } + } + + /* Ensure that the Lua handle is freed. */ + luaL_unref (L, LUA_REGISTRYINDEX, *h); + /* Free C handle. */ + free (handle); +} + +static int64_t +lua_plugin_get_size (void *handle) +{ + int *h = handle; + int64_t r; + + lua_getglobal (L, "get_size"); + lua_rawgeti (L, LUA_REGISTRYINDEX, *h); + if (lua_pcall (L, 1, 1, 0) != 0) { + nbdkit_error ("get_size: %s", lua_tostring (L, -1)); + lua_pop (L, 1); + return -1; + } + if (lua_isinteger (L, -1)) + r = lua_tointeger (L, -1); + else if (lua_isnumber (L, -1)) + r = (int64_t) lua_tonumber (L, -1); + else { + nbdkit_error ("get_size: cannot convert returned value to an integer"); + r = -1; + } + lua_pop (L, 1); + return r; +} + +static int +lua_plugin_pread (void *handle, void *buf, uint32_t count, uint64_t offset) +{ + int *h = handle; + size_t len; + const char *str; + + lua_getglobal (L, "pread"); + lua_rawgeti (L, LUA_REGISTRYINDEX, *h); + lua_pushinteger (L, count); + lua_pushinteger (L, offset); + if (lua_pcall (L, 3, 1, 0) != 0) { + nbdkit_error ("pread: %s", lua_tostring (L, -1)); + lua_pop (L, 1); + return -1; + } + str = lua_tolstring (L, -1, &len); + if (str == NULL) { + nbdkit_error ("pread: return value is not a string"); + lua_pop (L, 1); + return -1; + } + if (len < count) { + nbdkit_error ("pread: returned string length < count bytes"); + lua_pop (L, 1); + return -1; + } + memcpy (buf, str, count); + lua_pop (L, 1); + return 0; +} + +static int +lua_plugin_pwrite (void *handle, const void *buf, + uint32_t count, uint64_t offset) +{ + int *h = handle; + + if (function_defined ("pwrite")) { + lua_getglobal (L, "pwrite"); + lua_rawgeti (L, LUA_REGISTRYINDEX, *h); + lua_pushlstring (L, buf, count); + lua_pushinteger (L, offset); + if (lua_pcall (L, 3, 0, 0) != 0) { + nbdkit_error ("pwrite: %s", lua_tostring (L, -1)); + lua_pop (L, 1); + return -1; + } + return 0; + } + + nbdkit_error ("pwrite not implemented"); + return -1; +} + +static int +lua_plugin_can_write (void *handle) +{ + int *h = handle; + int r; + + if (function_defined ("can_write")) { + lua_getglobal (L, "can_write"); + lua_rawgeti (L, LUA_REGISTRYINDEX, *h); + if (lua_pcall (L, 1, 1, 0) != 0) { + nbdkit_error ("can_write: %s", lua_tostring (L, -1)); + lua_pop (L, 1); + return -1; + } + if (!lua_isboolean (L, -1)) { + nbdkit_error ("can_write: return value is not a boolean"); + lua_pop (L, 1); + return -1; + } + r = lua_toboolean (L, -1); + lua_pop (L, 1); + return r; + } + /* No can_write callback, but there's a pwrite callback defined, so + * return 1. (In C modules, nbdkit would do this). + */ + else if (function_defined ("pwrite")) + return 1; + else + return 0; +} + +static int +lua_plugin_can_flush (void *handle) +{ + int *h = handle; + int r; + + if (function_defined ("can_flush")) { + lua_getglobal (L, "can_flush"); + lua_rawgeti (L, LUA_REGISTRYINDEX, *h); + if (lua_pcall (L, 1, 1, 0) != 0) { + nbdkit_error ("can_flush: %s", lua_tostring (L, -1)); + lua_pop (L, 1); + return -1; + } + if (!lua_isboolean (L, -1)) { + nbdkit_error ("can_flush: return value is not a boolean"); + lua_pop (L, 1); + return -1; + } + r = lua_toboolean (L, -1); + lua_pop (L, 1); + return r; + } + /* No can_flush callback, but there's a plugin_flush callback + * defined, so return 1. (In C modules, nbdkit would do this). + */ + else if (function_defined ("plugin_flush")) + return 1; + else + return 0; +} + +static int +lua_plugin_can_trim (void *handle) +{ + int *h = handle; + int r; + + if (function_defined ("can_trim")) { + lua_getglobal (L, "can_trim"); + lua_rawgeti (L, LUA_REGISTRYINDEX, *h); + if (lua_pcall (L, 1, 1, 0) != 0) { + nbdkit_error ("can_trim: %s", lua_tostring (L, -1)); + lua_pop (L, 1); + return -1; + } + if (!lua_isboolean (L, -1)) { + nbdkit_error ("can_trim: return value is not a boolean"); + lua_pop (L, 1); + return -1; + } + r = lua_toboolean (L, -1); + lua_pop (L, 1); + return r; + } + /* No can_trim callback, but there's a trim callback defined, so + * return 1. (In C modules, nbdkit would do this). + */ + else if (function_defined ("trim")) + return 1; + else + return 0; +} + +static int +lua_plugin_is_rotational (void *handle) +{ + int *h = handle; + int r; + + if (function_defined ("is_rotational")) { + lua_getglobal (L, "is_rotational"); + lua_rawgeti (L, LUA_REGISTRYINDEX, *h); + if (lua_pcall (L, 1, 1, 0) != 0) { + nbdkit_error ("is_rotational: %s", lua_tostring (L, -1)); + lua_pop (L, 1); + return -1; + } + if (!lua_isboolean (L, -1)) { + nbdkit_error ("is_rotational: return value is not a boolean"); + lua_pop (L, 1); + return -1; + } + r = lua_toboolean (L, -1); + lua_pop (L, 1); + return r; + } + else + return 0; +} + +static int +lua_plugin_flush (void *handle) +{ + int *h = handle; + + if (function_defined ("flush")) { + lua_getglobal (L, "flush"); + lua_rawgeti (L, LUA_REGISTRYINDEX, *h); + if (lua_pcall (L, 1, 0, 0) != 0) { + nbdkit_error ("flush: %s", lua_tostring (L, -1)); + lua_pop (L, 1); + return -1; + } + return 0; + } + + /* Ignore lack of flush callback, although probably nbdkit will + * never call this since .can_flush returns false. + */ + return 0; +} + +static int +lua_plugin_trim (void *handle, uint32_t count, uint64_t offset) +{ + int *h = handle; + + if (function_defined ("trim")) { + lua_getglobal (L, "trim"); + lua_rawgeti (L, LUA_REGISTRYINDEX, *h); + lua_pushinteger (L, count); + lua_pushinteger (L, offset); + if (lua_pcall (L, 3, 0, 0) != 0) { + nbdkit_error ("trim: %s", lua_tostring (L, -1)); + lua_pop (L, 1); + return -1; + } + return 0; + } + + /* Ignore lack of trim callback, although probably nbdkit will never + * call this since .can_trim returns false. + */ + return 0; +} + +static int +lua_plugin_zero (void *handle, uint32_t count, uint64_t offset, int may_trim) +{ + int *h = handle; + + if (function_defined ("zero")) { + lua_getglobal (L, "zero"); + lua_rawgeti (L, LUA_REGISTRYINDEX, *h); + lua_pushinteger (L, count); + lua_pushinteger (L, offset); + lua_pushboolean (L, may_trim); + if (lua_pcall (L, 4, 0, 0) != 0) { + nbdkit_error ("zero: %s", lua_tostring (L, -1)); + lua_pop (L, 1); + return -1; + } + return 0; + } + + nbdkit_debug ("zero falling back to pwrite"); + nbdkit_set_error (EOPNOTSUPP); + return -1; +} + +#define lua_plugin_config_help \ + "script= (required) The Lua script to run.\n" \ + "[other arguments may be used by the plugin that you load]" + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS + +static struct nbdkit_plugin plugin = { + .name = "lua", + .version = PACKAGE_VERSION, + + .load = lua_plugin_load, + .unload = lua_plugin_unload, + .dump_plugin = lua_plugin_dump_plugin, + + .config = lua_plugin_config, + .config_complete = lua_plugin_config_complete, + .config_help = lua_plugin_config_help, + + .open = lua_plugin_open, + .close = lua_plugin_close, + + .get_size = lua_plugin_get_size, + .can_write = lua_plugin_can_write, + .can_flush = lua_plugin_can_flush, + .is_rotational = lua_plugin_is_rotational, + .can_trim = lua_plugin_can_trim, + + .pread = lua_plugin_pread, + .pwrite = lua_plugin_pwrite, + .flush = lua_plugin_flush, + .trim = lua_plugin_trim, + .zero = lua_plugin_zero, +}; + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/plugins/lua/nbdkit-lua-plugin.pod b/plugins/lua/nbdkit-lua-plugin.pod new file mode 100644 index 0000000..99883e2 --- /dev/null +++ b/plugins/lua/nbdkit-lua-plugin.pod @@ -0,0 +1,286 @@ +=head1 NAME + +nbdkit-lua-plugin - nbdkit Lua plugin + +=head1 SYNOPSIS + + nbdkit lua /path/to/plugin.lua [arguments...] + +=head1 DESCRIPTION + +C is an embedded Lua interpreter for +L, allowing you to write nbdkit plugins in Lua. + +=head2 If you have been given an nbdkit Lua plugin + +Assuming you have a Lua script which is an nbdkit plugin, you run it +like this: + + nbdkit lua /path/to/plugin.lua + +You may have to add further C arguments to the command +line. Read the Lua script to see if it requires any. + +=head1 WRITING A LUA NBDKIT PLUGIN + +For an example plugin written in Lua, see: +L + +Broadly speaking, Lua nbdkit plugins work like C ones, so you should +read L first. + +To write a Lua nbdkit plugin, you create a Lua file which contains +at least the following required functions: + + function open (readonly) + -- see below + return h + end + function get_size (h) + -- see below + return size + end + function pread (h, count, offset) + -- see below + return buf + end + +Note that the subroutines must have those literal names (like +C), because the C part looks up and calls those functions +directly. You may want to include documentation and globals (eg. for +storing global state). Also any top-level statements are run when +nbdkit starts up. + +=head2 Executable script + +If you want you can make the script executable and include a "shebang" +at the top: + + #!/usr/sbin/nbdkit lua + +See also L. + +These scripts can also be installed in the C<$plugindir>. See +L. + +=head2 Errors + +Lua plugin methods can indicate an error by calling C or +C. The error message will contain the method name, filename +and line number where the error occurred, eg: + + error ("could not open " .. filename) + --> nbdkit: error: open: myplugin.lua:123: could not open disk.img + +=head2 Lua callbacks + +This just documents the arguments to the callbacks in Lua, and any +way that they differ from the C callbacks. In all other respects they +work the same way as the C callbacks, so you should go and read +L. + +=over 4 + +=item C + +(Optional) + +There are no arguments or return value. + +=item C + +(Optional) + + function config (key, value) + -- No return value. + end + +=item C + +(Optional) + +There are no arguments or return value. + +=item C + +(Required) + + function open (readonly) + local handle + handle=... + return handle + end + +The C flag is a boolean. + +You can return any Lua string or object as the handle. It is passed +back to subsequent calls. + +=item C + +(Optional) + + function close (h) + -- No return value + end + +After C returns, the reference count of the handle is +decremented in the C part, which usually means that the handle and its +contents will be garbage collected. + +=item C + +(Required) + + function get_size (h) + local size + size= .. the size of the disk .. + return size + end + +This returns the size of the disk. + +=item C + +(Optional) + + function can_write (h) + return bool + end + +Return a boolean indicating whether the disk is writable. + +=item C + +(Optional) + + function can_flush (h) + return bool + end + +Return a boolean indicating whether flush can be performed. + +=item C + +(Optional) + + function is_rotational (h) + return bool + end + +Return a boolean indicating whether the disk is rotational. + +=item C + +(Optional) + + function can_trim (h) + return bool + end + +Return a boolean indicating whether trim/discard can be performed. + +=item C + +(Required) + + function pread (h, count, offset) + -- Construct a buffer of length count bytes and return it. + return buf + end + +The body of your C function should construct a buffer of length +(at least) C bytes. You should read C bytes from the +disk starting at C. + +NBD only supports whole reads, so your function should try to read the +whole region (perhaps requiring a loop). If the read fails or is +partial, your function should call C. + +=item C + +(Optional) + + function pwrite (h, buf, offset) + -- No return value + end + +The body of your C function should write the C string to +the disk. You should write C bytes to the disk starting at +C. + +NBD only supports whole writes, so your function should try to write +the whole region (perhaps requiring a loop). If the write fails or is +partial, your function should call C. + +=item C + +(Optional) + + function flush (h) + -- No return value + end + +The body of your C function should do a L or +L or equivalent on the backing store. + +=item C + +(Optional) + + function trim (h, count, offset) + -- No return value + end + +The body of your C function should "punch a hole" in the backing +store. + +=item C + +(Optional) + + function zero (h, count, offset, may_trim) + -- No return value + end + +The body of your C function should ensure that C bytes +of the disk, starting at C, will read back as zero. If +C is true, the operation may be optimized as a trim as long +as subsequent reads see zeroes. + +NBD only supports whole writes, so your function should try to write +the whole region (perhaps requiring a loop). If the write fails or is +partial, your function should call C. + +=back + +=head2 Missing callbacks + +=over 4 + +=item Missing: C, C, C, C, C, +C, C, C, C + +These are not yet supported. + +=back + +=head2 Threads + +The thread model for Lua callbacks currently cannot be set from Lua. +It is hard-coded in the C part to +C. This may change or be +settable in future. + +=head1 SEE ALSO + +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/plugins/memory/Makefile.am b/plugins/memory/Makefile.am new file mode 100644 index 0000000..45df69d --- /dev/null +++ b/plugins/memory/Makefile.am @@ -0,0 +1,63 @@ +# nbdkit +# Copyright (C) 2017 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-memory-plugin.pod + +plugin_LTLIBRARIES = nbdkit-memory-plugin.la + +nbdkit_memory_plugin_la_SOURCES = \ + memory.c \ + $(top_srcdir)/include/nbdkit-plugin.h + +nbdkit_memory_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/sparse +nbdkit_memory_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_memory_plugin_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms +nbdkit_memory_plugin_la_LIBADD = \ + $(top_builddir)/common/sparse/libsparse.la + +if HAVE_POD + +man_MANS = nbdkit-memory-plugin.1 +CLEANFILES += $(man_MANS) + +nbdkit-memory-plugin.1: nbdkit-memory-plugin.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/plugins/memory/Makefile.in b/plugins/memory/Makefile.in new file mode 100644 index 0000000..e5207e7 --- /dev/null +++ b/plugins/memory/Makefile.in @@ -0,0 +1,886 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2017 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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uninstall-pluginLTLIBRARIES + +.PRECIOUS: Makefile + + +@HAVE_POD_TRUE@nbdkit-memory-plugin.1: nbdkit-memory-plugin.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/plugins/memory/memory.c b/plugins/memory/memory.c new file mode 100644 index 0000000..418708a --- /dev/null +++ b/plugins/memory/memory.c @@ -0,0 +1,207 @@ +/* nbdkit + * Copyright (C) 2017-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include + +#include "sparse.h" + +/* The size of disk in bytes (initialized by size= parameter). */ +static int64_t size = 0; + +/* Debug directory operations (-D memory.dir=1). */ +int memory_debug_dir; + +/* Sparse array - the lock must be held when accessing this from + * connected callbacks. + */ +static struct sparse_array *sa; +static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; + +static void +memory_load (void) +{ + sa = alloc_sparse_array (memory_debug_dir); + if (sa == NULL) { + perror ("malloc"); + exit (EXIT_FAILURE); + } +} + +static void +memory_unload (void) +{ + free_sparse_array (sa); +} + +static int +memory_config (const char *key, const char *value) +{ + if (strcmp (key, "size") == 0) { + size = nbdkit_parse_size (value); + if (size == -1) + return -1; + } + else { + nbdkit_error ("unknown parameter '%s'", key); + return -1; + } + + return 0; +} + +static int +memory_config_complete (void) +{ + if (size == 0) { + nbdkit_error ("you must specify size= on the command line"); + return -1; + } + return 0; +} + +#define memory_config_help \ + "size= (required) Size of the backing disk" + +/* Create the per-connection handle. */ +static void * +memory_open (int readonly) +{ + return NBDKIT_HANDLE_NOT_NEEDED; +} + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + +/* Get the disk size. */ +static int64_t +memory_get_size (void *handle) +{ + return (int64_t) size; +} + +/* Serves the same data over multiple connections. */ +static int +memory_can_multi_conn (void *handle) +{ + return 1; +} + +/* Read data. */ +static int +memory_pread (void *handle, void *buf, uint32_t count, uint64_t offset) +{ + pthread_mutex_lock (&lock); + sparse_array_read (sa, buf, count, offset); + pthread_mutex_unlock (&lock); + return 0; +} + +/* Write data. */ +static int +memory_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset) +{ + int r; + + pthread_mutex_lock (&lock); + r = sparse_array_write (sa, buf, count, offset); + pthread_mutex_unlock (&lock); + return r; +} + +/* Zero. */ +static int +memory_zero (void *handle, uint32_t count, uint64_t offset, int may_trim) +{ + pthread_mutex_lock (&lock); + sparse_array_zero (sa, count, offset); + pthread_mutex_unlock (&lock); + return 0; +} + +/* Trim (same as zero). */ +static int +memory_trim (void *handle, uint32_t count, uint64_t offset) +{ + pthread_mutex_lock (&lock); + sparse_array_zero (sa, count, offset); + pthread_mutex_unlock (&lock); + return 0; +} + +/* Extents. */ +static int +memory_extents (void *handle, uint32_t count, uint64_t offset, + uint32_t flags, struct nbdkit_extents *extents) +{ + int r; + + pthread_mutex_lock (&lock); + r = sparse_array_extents (sa, count, offset, extents); + pthread_mutex_unlock (&lock); + return r; +} + +static struct nbdkit_plugin plugin = { + .name = "memory", + .version = PACKAGE_VERSION, + .load = memory_load, + .unload = memory_unload, + .config = memory_config, + .config_complete = memory_config_complete, + .config_help = memory_config_help, + .open = memory_open, + .get_size = memory_get_size, + .can_multi_conn = memory_can_multi_conn, + .pread = memory_pread, + .pwrite = memory_pwrite, + .zero = memory_zero, + .trim = memory_trim, + .extents = memory_extents, + /* In this plugin, errno is preserved properly along error return + * paths from failed system calls. + */ + .errno_is_preserved = 1, +}; + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/plugins/memory/nbdkit-memory-plugin.pod b/plugins/memory/nbdkit-memory-plugin.pod new file mode 100644 index 0000000..16c2c37 --- /dev/null +++ b/plugins/memory/nbdkit-memory-plugin.pod @@ -0,0 +1,79 @@ +=head1 NAME + +nbdkit-memory-plugin - nbdkit virtual memory (RAM disk) plugin + +=head1 SYNOPSIS + + nbdkit memory size=SIZE + +=head1 DESCRIPTION + +C is a plugin for L which stores a +single disk image in virtual memory, and discards it when nbdkit +exits. This plugin can be used for testing or where you don't care +about the final content of the disk image. + +All nbdkit clients will see the same disk content, initially all +zeroes. + +The disk image is stored in memory using a sparse array. The +allocated parts of the disk image cannot be larger than physical RAM +plus swap, less whatever is being used by the rest of the system. If +you want to allocate more space than this use L +backed by a temporary file instead. + +However the virtual size can be as large as you like, up to the +maximum supported by nbdkit (S<2⁶³-1 bytes>). This limit is tested +when nbdkit is compiled, and it should work on all platforms and +architectures supported by nbdkit. + +=head2 Preloading small amounts of data + +If you want an in-memory disk image preinitialized with a small amount +of data specified on the command line, look at +L instead. Note by "small" this does not mean +that the virtual disk image must be small, but that the amount of data +initially stored sparsely is small enough to specify on the command +line. + +=head2 Preloading large amounts of data + +If you want to preload a large amount of data (eg. a disk image) into +the memory plugin, use L: + + $ rm -f pid + $ nbdkit -P pid memory size=10G + + # wait for nbdkit to become ready to accept connections: + $ while [ ! -f pid ]; do sleep 1; done + + # preload Fedora disk image: + $ virt-builder fedora-28 --size=10G + $ qemu-img convert -p -n fedora-28.img nbd:localhost:10809 + +=head1 PARAMETERS + +=over 4 + +=item BSIZE + +Specify the virtual size of the disk image. + +This parameter is required. + +=back + +=head1 SEE ALSO + +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2017-2018 Red Hat Inc. diff --git a/plugins/nbd/Makefile.am b/plugins/nbd/Makefile.am new file mode 100644 index 0000000..b9d486f --- /dev/null +++ b/plugins/nbd/Makefile.am @@ -0,0 +1,65 @@ +# nbdkit +# Copyright (C) 2017 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-nbd-plugin.pod + +plugin_LTLIBRARIES = nbdkit-nbd-plugin.la + +nbdkit_nbd_plugin_la_SOURCES = \ + nbd.c \ + $(top_srcdir)/include/nbdkit-plugin.h + +nbdkit_nbd_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/common/protocol \ + -I$(top_srcdir)/server +nbdkit_nbd_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_nbd_plugin_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms +nbdkit_nbd_plugin_la_LIBADD = \ + $(top_builddir)/common/protocol/libprotocol.la + +if HAVE_POD + +man_MANS = nbdkit-nbd-plugin.1 +CLEANFILES += $(man_MANS) + +nbdkit-nbd-plugin.1: nbdkit-nbd-plugin.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/plugins/nbd/Makefile.in b/plugins/nbd/Makefile.in new file mode 100644 index 0000000..86bfcf4 --- /dev/null +++ b/plugins/nbd/Makefile.in @@ -0,0 +1,886 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2017 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/plugins/nbd/nbd.c b/plugins/nbd/nbd.c new file mode 100644 index 0000000..57ffc2a --- /dev/null +++ b/plugins/nbd/nbd.c @@ -0,0 +1,752 @@ +/* nbdkit + * Copyright (C) 2017-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define NBDKIT_API_VERSION 2 + +#include +#include "protocol.h" +#include "byte-swapping.h" + +static char *sockname = NULL; +static char *export = NULL; + +static void +nbd_unload (void) +{ + free (sockname); + free (export); +} + +/* Called for each key=value passed on the command line. This plugin + * accepts socket= (required for now) and export= (optional). + */ +static int +nbd_config (const char *key, const char *value) +{ + if (strcmp (key, "socket") == 0) { + /* See FILENAMES AND PATHS in nbdkit-plugin(3) */ + free (sockname); + sockname = nbdkit_absolute_path (value); + if (!sockname) + return -1; + } + else if (strcmp (key, "export") == 0) { + free (export); + export = strdup (value); + if (!export) { + nbdkit_error ("memory failure: %m"); + return -1; + } + } + else { + nbdkit_error ("unknown parameter '%s'", key); + return -1; + } + + return 0; +} + +/* Check the user did pass a socket= parameter. */ +static int +nbd_config_complete (void) +{ + struct sockaddr_un sock; + + if (sockname == NULL) { + nbdkit_error ("you must supply the socket= parameter " + "after the plugin name on the command line"); + return -1; + } + if (strlen (sockname) > sizeof sock.sun_path) { + nbdkit_error ("socket file name too large"); + return -1; + } + if (!export) + export = strdup (""); + if (!export) { + nbdkit_error ("memory failure: %m"); + return -1; + } + return 0; +} + +#define nbd_config_help \ + "socket= (required) The Unix socket to connect to.\n" \ + "export= Export name to connect to (default \"\").\n" \ + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + +/* The per-transaction details */ +struct transaction { + union { + uint64_t cookie; + int fds[2]; + } u; + void *buf; + uint32_t count; + struct transaction *next; +}; + +/* The per-connection handle */ +struct handle { + /* These fields are read-only once initialized */ + int fd; + int flags; + int64_t size; + pthread_t reader; + + /* Prevents concurrent threads from interleaving writes to server */ + pthread_mutex_t write_lock; + + pthread_mutex_t trans_lock; /* Covers access to all fields below */ + struct transaction *trans; + bool dead; +}; + +/* Read an entire buffer, returning 0 on success or -1 with errno set. */ +static int +read_full (int fd, void *buf, size_t len) +{ + ssize_t r; + + while (len) { + r = read (fd, buf, len); + if (r < 0) { + if (errno == EINTR || errno == EAGAIN) + continue; + return -1; + } + if (!r) { + /* Unexpected EOF */ + errno = EBADMSG; + return -1; + } + buf += r; + len -= r; + } + return 0; +} + +/* Write an entire buffer, returning 0 on success or -1 with errno set. */ +static int +write_full (int fd, const void *buf, size_t len) +{ + ssize_t r; + + while (len) { + r = write (fd, buf, len); + if (r < 0) { + if (errno == EINTR || errno == EAGAIN) + continue; + return -1; + } + buf += r; + len -= r; + } + return 0; +} + +static void +nbd_lock (struct handle *h) +{ + int r = pthread_mutex_lock (&h->trans_lock); + assert (!r); +} + +static void +nbd_unlock (struct handle *h) +{ + int r = pthread_mutex_unlock (&h->trans_lock); + assert (!r); +} + +/* Called during transmission phases when there is no hope of + * resynchronizing with the server, and all further requests from the + * client will fail. Returns -1 for convenience. */ +static int +nbd_mark_dead (struct handle *h) +{ + int err = errno; + + nbd_lock (h); + if (!h->dead) { + nbdkit_debug ("permanent failure while talking to server %s: %m", + sockname); + h->dead = true; + } + else if (!err) + errno = ESHUTDOWN; + nbd_unlock (h); + /* NBD only accepts a limited set of errno values over the wire, and + nbdkit converts all other values to EINVAL. If we died due to an + errno value that cannot transmit over the wire, translate it to + ESHUTDOWN instead. */ + if (err == EPIPE || err == EBADMSG) + nbdkit_set_error (ESHUTDOWN); + return -1; +} + +/* Find and remove the transaction corresponding to cookie from the list. */ +static struct transaction * +find_trans_by_cookie (struct handle *h, uint64_t cookie) +{ + struct transaction **ptr; + struct transaction *trans; + + nbd_lock (h); + ptr = &h->trans; + while ((trans = *ptr) != NULL) { + if (cookie == trans->u.cookie) + break; + ptr = &trans->next; + } + if (trans) + *ptr = trans->next; + nbd_unlock (h); + return trans; +} + +/* Send a request, return 0 on success or -1 on write failure. */ +static int +nbd_request_raw (struct handle *h, uint16_t flags, uint16_t type, + uint64_t offset, uint32_t count, uint64_t cookie, + const void *buf) +{ + struct request req = { + .magic = htobe32 (NBD_REQUEST_MAGIC), + .flags = htobe16 (flags), + .type = htobe16 (type), + .handle = cookie, /* Opaque to server, so endianness doesn't matter */ + .offset = htobe64 (offset), + .count = htobe32 (count), + }; + int r; + + pthread_mutex_lock (&h->write_lock); + nbdkit_debug ("sending request type %d (%s), flags %#x, offset %#" PRIx64 + ", count %#x, cookie %#" PRIx64, type, name_of_nbd_cmd(type), + flags, offset, count, cookie); + r = write_full (h->fd, &req, sizeof req); + if (buf && !r) + r = write_full (h->fd, buf, count); + pthread_mutex_unlock (&h->write_lock); + return r; +} + +/* Perform the request half of a transaction. On success, return the + non-negative fd for reading the reply; on error return -1. */ +static int +nbd_request_full (struct handle *h, uint16_t flags, uint16_t type, + uint64_t offset, uint32_t count, const void *req_buf, + void *rep_buf) +{ + int err; + struct transaction *trans; + int fd; + uint64_t cookie; + + trans = calloc (1, sizeof *trans); + if (!trans) { + nbdkit_error ("unable to track transaction: %m"); + /* Still in sync with server, so don't mark connection dead */ + return -1; + } + if (pipe (trans->u.fds)) { + nbdkit_error ("unable to create pipe: %m"); + /* Still in sync with server, so don't mark connection dead */ + free (trans); + return -1; + } + trans->buf = rep_buf; + trans->count = rep_buf ? count : 0; + nbd_lock (h); + if (h->dead) { + nbd_unlock (h); + goto err; + } + trans->next = h->trans; + h->trans = trans; + fd = trans->u.fds[0]; + cookie = trans->u.cookie; + nbd_unlock (h); + if (nbd_request_raw (h, flags, type, offset, count, cookie, req_buf) == 0) + return fd; + trans = find_trans_by_cookie (h, cookie); + + err: + err = errno; + if (trans) { + close (trans->u.fds[0]); + close (trans->u.fds[1]); + free (trans); + } + else + close (fd); + errno = err; + return nbd_mark_dead (h); +} + +/* Shorthand for nbd_request_full when no extra buffers are involved. */ +static int +nbd_request (struct handle *h, uint16_t flags, uint16_t type, uint64_t offset, + uint32_t count) +{ + return nbd_request_full (h, flags, type, offset, count, NULL, NULL); +} + +/* Read a reply, and look up the fd corresponding to the transaction. + Return the server's non-negative answer (converted to local errno + value) on success, or -1 on read failure. */ +static int +nbd_reply_raw (struct handle *h, int *fd) +{ + struct simple_reply rep; + struct transaction *trans; + void *buf; + uint32_t count; + + *fd = -1; + if (read_full (h->fd, &rep, sizeof rep) < 0) + return nbd_mark_dead (h); + if (be32toh (rep.magic) != NBD_SIMPLE_REPLY_MAGIC) + return nbd_mark_dead (h); + nbdkit_debug ("received reply for cookie %#" PRIx64 ", status %s", + rep.handle, name_of_nbd_error(be32toh (rep.error))); + trans = find_trans_by_cookie (h, rep.handle); + if (!trans) { + nbdkit_error ("reply with unexpected cookie %#" PRIx64, rep.handle); + return nbd_mark_dead (h); + } + + *fd = trans->u.fds[1]; + buf = trans->buf; + count = trans->count; + free (trans); + switch (be32toh (rep.error)) { + case NBD_SUCCESS: + if (buf && read_full (h->fd, buf, count) < 0) + return nbd_mark_dead (h); + return 0; + case NBD_EPERM: + return EPERM; + case NBD_EIO: + return EIO; + case NBD_ENOMEM: + return ENOMEM; + default: + nbdkit_debug ("unexpected error %d, squashing to EINVAL", + be32toh (rep.error)); + /* fallthrough */ + case NBD_EINVAL: + return EINVAL; + case NBD_ENOSPC: + return ENOSPC; + case NBD_ESHUTDOWN: + return ESHUTDOWN; + } +} + +/* Reader loop. */ +void * +nbd_reader (void *handle) +{ + struct handle *h = handle; + bool done = false; + int r; + + while (!done) { + int fd; + + r = nbd_reply_raw (h, &fd); + if (r >= 0) { + if (write (fd, &r, sizeof r) != sizeof r) { + nbdkit_error ("failed to write pipe: %m"); + abort (); + } + } + if (fd >= 0) + close (fd); + nbd_lock (h); + done = h->dead; + nbd_unlock (h); + } + + /* Clean up any stranded in-flight requests */ + r = ESHUTDOWN; + while (1) { + struct transaction *trans; + + nbd_lock (h); + trans = h->trans; + h->trans = trans ? trans->next : NULL; + nbd_unlock (h); + if (!trans) + break; + if (write (trans->u.fds[1], &r, sizeof r) != sizeof r) { + nbdkit_error ("failed to write pipe: %m"); + abort (); + } + close (trans->u.fds[1]); + free (trans); + } + return NULL; +} + +/* Perform the reply half of a transaction. */ +static int +nbd_reply (struct handle *h, int fd) +{ + int err; + + if (read (fd, &err, sizeof err) != sizeof err) { + nbdkit_debug ("failed to read pipe: %m"); + err = EIO; + } + close (fd); + errno = err; + return err ? -1 : 0; +} + +/* Create the per-connection handle. */ +static void * +nbd_open (int readonly) +{ + struct handle *h; + struct sockaddr_un sock = { .sun_family = AF_UNIX }; + struct old_handshake old; + uint64_t version; + + h = calloc (1, sizeof *h); + if (h == NULL) { + nbdkit_error ("malloc: %m"); + return NULL; + } + h->fd = socket (AF_UNIX, SOCK_STREAM, 0); + if (h->fd < 0) { + nbdkit_error ("socket: %m"); + free (h); + return NULL; + } + /* We already validated length during nbd_config_complete */ + assert (strlen (sockname) <= sizeof sock.sun_path); + memcpy (sock.sun_path, sockname, strlen (sockname)); + if (connect (h->fd, (const struct sockaddr *) &sock, sizeof sock) < 0) { + nbdkit_error ("connect: %m"); + goto err; + } + + /* old and new handshake share same meaning of first 16 bytes */ + if (read_full (h->fd, &old, offsetof (struct old_handshake, exportsize))) { + nbdkit_error ("unable to read magic: %m"); + goto err; + } + if (strncmp(old.nbdmagic, "NBDMAGIC", sizeof old.nbdmagic)) { + nbdkit_error ("wrong magic, %s is not an NBD server", sockname); + goto err; + } + version = be64toh (old.version); + if (version == OLD_VERSION) { + if (read_full (h->fd, + (char *) &old + offsetof (struct old_handshake, exportsize), + sizeof old - offsetof (struct old_handshake, exportsize))) { + nbdkit_error ("unable to read old handshake: %m"); + goto err; + } + h->size = be64toh (old.exportsize); + h->flags = be16toh (old.eflags); + } + else if (version == NEW_VERSION) { + uint16_t gflags; + uint32_t cflags; + struct new_option opt; + struct new_handshake_finish finish; + size_t expect; + + if (read_full (h->fd, &gflags, sizeof gflags)) { + nbdkit_error ("unable to read global flags: %m"); + goto err; + } + gflags = be16toh (gflags); + cflags = htobe32(gflags & (NBD_FLAG_FIXED_NEWSTYLE | NBD_FLAG_NO_ZEROES)); + if (write_full (h->fd, &cflags, sizeof cflags)) { + nbdkit_error ("unable to return global flags: %m"); + goto err; + } + + /* For now, we don't do any option haggling, but go straight into + transmission phase */ + opt.version = htobe64 (NEW_VERSION); + opt.option = htobe32 (NBD_OPT_EXPORT_NAME); + opt.optlen = htobe32 (strlen (export)); + if (write_full (h->fd, &opt, sizeof opt) || + write_full (h->fd, export, strlen (export))) { + nbdkit_error ("unable to request export '%s': %m", export); + goto err; + } + expect = sizeof finish; + if (gflags & NBD_FLAG_NO_ZEROES) + expect -= sizeof finish.zeroes; + if (read_full (h->fd, &finish, expect)) { + nbdkit_error ("unable to read new handshake: %m"); + goto err; + } + h->size = be64toh (finish.exportsize); + h->flags = be16toh (finish.eflags); + } + else { + nbdkit_error ("unexpected version %#" PRIx64, version); + goto err; + } + if (readonly) + h->flags |= NBD_FLAG_READ_ONLY; + + /* Spawn a dedicated reader thread */ + if ((errno = pthread_mutex_init (&h->write_lock, NULL))) { + nbdkit_error ("failed to initialize write mutex: %m"); + goto err; + } + if ((errno = pthread_mutex_init (&h->trans_lock, NULL))) { + nbdkit_error ("failed to initialize transaction mutex: %m"); + pthread_mutex_destroy (&h->write_lock); + goto err; + } + if ((errno = pthread_create (&h->reader, NULL, nbd_reader, h))) { + nbdkit_error ("failed to initialize reader thread: %m"); + pthread_mutex_destroy (&h->write_lock); + pthread_mutex_destroy (&h->trans_lock); + goto err; + } + + return h; + + err: + close (h->fd); + free (h); + return NULL; +} + +/* Free up the per-connection handle. */ +static void +nbd_close (void *handle) +{ + struct handle *h = handle; + + if (!h->dead) { + nbd_request_raw (h, 0, NBD_CMD_DISC, 0, 0, 0, NULL); + shutdown (h->fd, SHUT_WR); + } + if ((errno = pthread_join (h->reader, NULL))) + nbdkit_debug ("failed to join reader thread: %m"); + close (h->fd); + pthread_mutex_destroy (&h->write_lock); + pthread_mutex_destroy (&h->trans_lock); + free (h); +} + +/* Get the file size. */ +static int64_t +nbd_get_size (void *handle) +{ + struct handle *h = handle; + + return h->size; +} + +static int +nbd_can_write (void *handle) +{ + struct handle *h = handle; + + return !(h->flags & NBD_FLAG_READ_ONLY); +} + +static int +nbd_can_flush (void *handle) +{ + struct handle *h = handle; + + return h->flags & NBD_FLAG_SEND_FLUSH; +} + +static int +nbd_is_rotational (void *handle) +{ + struct handle *h = handle; + + return h->flags & NBD_FLAG_ROTATIONAL; +} + +static int +nbd_can_trim (void *handle) +{ + struct handle *h = handle; + + return h->flags & NBD_FLAG_SEND_TRIM; +} + +static int +nbd_can_zero (void *handle) +{ + struct handle *h = handle; + + return h->flags & NBD_FLAG_SEND_WRITE_ZEROES; +} + +static int +nbd_can_fua (void *handle) +{ + struct handle *h = handle; + + return h->flags & NBD_FLAG_SEND_FUA ? NBDKIT_FUA_NATIVE : NBDKIT_FUA_NONE; +} + +static int +nbd_can_multi_conn (void *handle) +{ + struct handle *h = handle; + + return h->flags & NBD_FLAG_CAN_MULTI_CONN; +} + +/* Read data from the file. */ +static int +nbd_pread (void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags) +{ + struct handle *h = handle; + int c; + + assert (!flags); + c = nbd_request_full (h, 0, NBD_CMD_READ, offset, count, NULL, buf); + return c < 0 ? c : nbd_reply (h, c); +} + +/* Write data to the file. */ +static int +nbd_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset, + uint32_t flags) +{ + struct handle *h = handle; + int c; + + assert (!(flags & ~NBDKIT_FLAG_FUA)); + c = nbd_request_full (h, flags & NBDKIT_FLAG_FUA ? NBD_CMD_FLAG_FUA : 0, + NBD_CMD_WRITE, offset, count, buf, NULL); + return c < 0 ? c : nbd_reply (h, c); +} + +/* Write zeroes to the file. */ +static int +nbd_zero (void *handle, uint32_t count, uint64_t offset, uint32_t flags) +{ + struct handle *h = handle; + int c; + int f = 0; + + assert (!(flags & ~(NBDKIT_FLAG_FUA | NBDKIT_FLAG_MAY_TRIM))); + assert (h->flags & NBD_FLAG_SEND_WRITE_ZEROES); + + if (!(flags & NBDKIT_FLAG_MAY_TRIM)) + f |= NBD_CMD_FLAG_NO_HOLE; + if (flags & NBDKIT_FLAG_FUA) + f |= NBD_CMD_FLAG_FUA; + c = nbd_request (h, f, NBD_CMD_WRITE_ZEROES, offset, count); + return c < 0 ? c : nbd_reply (h, c); +} + +/* Trim a portion of the file. */ +static int +nbd_trim (void *handle, uint32_t count, uint64_t offset, uint32_t flags) +{ + struct handle *h = handle; + int c; + + assert (!(flags & ~NBDKIT_FLAG_FUA)); + c = nbd_request (h, flags & NBDKIT_FLAG_FUA ? NBD_CMD_FLAG_FUA : 0, + NBD_CMD_TRIM, offset, count); + return c < 0 ? c : nbd_reply (h, c); +} + +/* Flush the file to disk. */ +static int +nbd_flush (void *handle, uint32_t flags) +{ + struct handle *h = handle; + int c; + + assert (!flags); + c = nbd_request (h, 0, NBD_CMD_FLUSH, 0, 0); + return c < 0 ? c : nbd_reply (h, c); +} + +static struct nbdkit_plugin plugin = { + .name = "nbd", + .longname = "nbdkit nbd plugin", + .version = PACKAGE_VERSION, + .unload = nbd_unload, + .config = nbd_config, + .config_complete = nbd_config_complete, + .config_help = nbd_config_help, + .open = nbd_open, + .close = nbd_close, + .get_size = nbd_get_size, + .can_write = nbd_can_write, + .can_flush = nbd_can_flush, + .is_rotational = nbd_is_rotational, + .can_trim = nbd_can_trim, + .can_zero = nbd_can_zero, + .can_fua = nbd_can_fua, + .can_multi_conn = nbd_can_multi_conn, + .pread = nbd_pread, + .pwrite = nbd_pwrite, + .zero = nbd_zero, + .flush = nbd_flush, + .trim = nbd_trim, + .errno_is_preserved = 1, +}; + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/plugins/nbd/nbdkit-nbd-plugin.pod b/plugins/nbd/nbdkit-nbd-plugin.pod new file mode 100644 index 0000000..cd0db09 --- /dev/null +++ b/plugins/nbd/nbdkit-nbd-plugin.pod @@ -0,0 +1,54 @@ +=head1 NAME + +nbdkit-nbd-plugin - nbdkit nbd plugin + +=head1 SYNOPSIS + + nbdkit nbd socket=SOCKNAME [export=NAME] + +=head1 DESCRIPTION + +C is an NBD forwarding plugin for L. + +It provides an NBD server that forwards all traffic as a client to +another existing NBD server. A primary usage of this setup is to +alter the set of features available to the ultimate end client, +without having to change the original server (for example, to convert +between oldstyle and newstyle, or to add TLS support where the original +server lacks it). + +For now, this is limited to connecting to another NBD server over a +named Unix socket without TLS, although it is feasible that future +additions will support network sockets and encryption. + +=head1 PARAMETERS + +=over 4 + +=item BSOCKNAME + +Connect to the NBD server located at the Unix socket C. The +server can speak either new or old style protocol. + +This parameter is required. + +=item BNAME + +If this parameter is given, and the server speaks new style protocol, +then connect to the named export instead of the default export (the +empty string). + +=back + +=head1 SEE ALSO + +L, +L. + +=head1 AUTHORS + +Eric Blake + +=head1 COPYRIGHT + +Copyright (C) 2017 Red Hat Inc. diff --git a/plugins/null/Makefile.am b/plugins/null/Makefile.am new file mode 100644 index 0000000..867db3d --- /dev/null +++ b/plugins/null/Makefile.am @@ -0,0 +1,59 @@ +# nbdkit +# Copyright (C) 2017 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-null-plugin.pod + +plugin_LTLIBRARIES = nbdkit-null-plugin.la + +nbdkit_null_plugin_la_SOURCES = \ + null.c \ + $(top_srcdir)/include/nbdkit-plugin.h + +nbdkit_null_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/include +nbdkit_null_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_null_plugin_la_LDFLAGS = \ + -module -avoid-version -shared + +if HAVE_POD + +man_MANS = nbdkit-null-plugin.1 +CLEANFILES += $(man_MANS) + +nbdkit-null-plugin.1: nbdkit-null-plugin.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/plugins/null/Makefile.in b/plugins/null/Makefile.in new file mode 100644 index 0000000..f0aa8c4 --- /dev/null +++ b/plugins/null/Makefile.in @@ -0,0 +1,878 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2017 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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least) may be exceeded. +.NOEXPORT: diff --git a/plugins/null/nbdkit-null-plugin.pod b/plugins/null/nbdkit-null-plugin.pod new file mode 100644 index 0000000..7d9387d --- /dev/null +++ b/plugins/null/nbdkit-null-plugin.pod @@ -0,0 +1,46 @@ +=head1 NAME + +nbdkit-null-plugin - nbdkit bitbucket plugin + +=head1 SYNOPSIS + + nbdkit null [size=SIZE] + +=head1 DESCRIPTION + +C is a null plugin for L. Everything +written to the virtual device is discarded, and reads back as zeroes. + +Most NBD consumers will be very confused by this device. Trying to +create filesystems etc on it will likely fail badly. If the client is +caching writes locally then you will get inconsistent read behaviour. + +=head1 PARAMETERS + +=over 4 + +=item BSIZE + +Specify the virtual size of the disk image. + +This parameter is optional. If omitted then a zero-sized device is +created. + +=back + +=head1 SEE ALSO + +L, +L, +L, +L, +L. +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2017 Red Hat Inc. diff --git a/plugins/null/null.c b/plugins/null/null.c new file mode 100644 index 0000000..b32c4f4 --- /dev/null +++ b/plugins/null/null.c @@ -0,0 +1,163 @@ +/* nbdkit + * Copyright (C) 2017-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include + +#define NBDKIT_API_VERSION 2 + +#include + +/* The size of disk in bytes (initialized by size= parameter). */ +static int64_t size = 0; + +static int +null_config (const char *key, const char *value) +{ + int64_t r; + + if (strcmp (key, "size") == 0) { + r = nbdkit_parse_size (value); + if (r == -1) + return -1; + size = r; + } + else { + nbdkit_error ("unknown parameter '%s'", key); + return -1; + } + + return 0; +} + +#define null_config_help \ + "size= Size of the backing disk" + +/* Create the per-connection handle. */ +static void * +null_open (int readonly) +{ + return NBDKIT_HANDLE_NOT_NEEDED; +} + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + +/* Get the disk size. */ +static int64_t +null_get_size (void *handle) +{ + return size; +} + +/* Read data. */ +static int +null_pread (void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags) +{ + memset (buf, 0, count); + return 0; +} + +/* Write data. */ +static int +null_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset, + uint32_t flags) +{ + /* nothing */ + return 0; +} + +/* Write zeros. */ +static int +null_zero (void *handle, uint32_t count, uint64_t offset, uint32_t flags) +{ + /* nothing */ + return 0; +} + +/* Flush is a no-op, so advertise native FUA support */ +static int +null_can_fua (void *handle) +{ + return NBDKIT_FUA_NATIVE; +} + +/* Trim. */ +static int +null_trim (void *handle, uint32_t count, uint64_t offset, uint32_t flags) +{ + /* nothing */ + return 0; +} + +/* Nothing is persistent, so flush is trivially supported */ +static int +null_flush (void *handle, uint32_t flags) +{ + return 0; +} + +/* Extents. */ +static int +null_extents (void *handle, uint32_t count, uint64_t offset, uint32_t flags, + struct nbdkit_extents *extents) +{ + return nbdkit_add_extent (extents, 0, size, + NBDKIT_EXTENT_HOLE | NBDKIT_EXTENT_ZERO); +} + +static struct nbdkit_plugin plugin = { + .name = "null", + .version = PACKAGE_VERSION, + .config = null_config, + .config_help = null_config_help, + .open = null_open, + .get_size = null_get_size, + .pread = null_pread, + .pwrite = null_pwrite, + .zero = null_zero, + .trim = null_trim, + .can_fua = null_can_fua, + .flush = null_flush, + .extents = null_extents, + /* In this plugin, errno is preserved properly along error return + * paths from failed system calls. + */ + .errno_is_preserved = 1, +}; + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/plugins/ocaml/Makefile.am b/plugins/ocaml/Makefile.am new file mode 100644 index 0000000..aa67057 --- /dev/null +++ b/plugins/ocaml/Makefile.am @@ -0,0 +1,81 @@ +# nbdkit +# Copyright (C) 2014 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = \ + NBDKit.mli \ + NBDKit.ml \ + nbdkit-ocaml-plugin.pod + +if HAVE_OCAML + +ocamllibdir = $(OCAMLLIB) +ocamllib_DATA = NBDKit.mli NBDKit.cmi NBDKit.cmx NBDKit.o + +NBDKit.cmi: NBDKit.mli + $(OCAMLC) -c $< -o $@ + +NBDKit.cmx: NBDKit.ml NBDKit.cmi + $(OCAMLOPT) $(OCAMLOPTFLAGS) -c $< -o $@ +NBDKit.o: NBDKit.cmx + +# NB: libnbdkitocaml is not plugin. It's a library that you have to +# link in to the OCaml plugins that you write. nbdkit-ocaml-plugin(3) +# for more details. + +lib_LTLIBRARIES = libnbdkitocaml.la + +libnbdkitocaml_la_SOURCES = \ + ocaml.c \ + $(top_srcdir)/include/nbdkit-plugin.h + +libnbdkitocaml_la_CPPFLAGS = \ + -I$(OCAMLLIB) \ + -I$(top_srcdir)/include + +libnbdkitocaml_la_CFLAGS = \ + $(WARNINGS_CFLAGS) \ + -fPIC + +if HAVE_POD + +man_MANS = nbdkit-ocaml-plugin.3 +CLEANFILES += $(man_MANS) + +nbdkit-ocaml-plugin.3: nbdkit-ocaml-plugin.pod + $(PODWRAPPER) --section=3 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD + +endif diff --git a/plugins/ocaml/Makefile.in b/plugins/ocaml/Makefile.in new file mode 100644 index 0000000..54c7e03 --- /dev/null +++ b/plugins/ocaml/Makefile.in @@ -0,0 +1,923 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2014 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + *) + +open Printf + +type flags = flag list +and flag = May_trim | FUA + +type fua_flag = FuaNone | FuaEmulate | FuaNative + +type 'a plugin = { + name : string; + longname : string; + version : string; + description : string; + + load : (unit -> unit) option; + unload : (unit -> unit) option; + + config : (string -> string -> unit) option; + config_complete : (unit -> unit) option; + config_help : string; + + open_connection : (bool -> 'a) option; + close : ('a -> unit) option; + + get_size : ('a -> int64) option; + + can_write : ('a -> bool) option; + can_flush : ('a -> bool) option; + is_rotational : ('a -> bool) option; + can_trim : ('a -> bool) option; + + dump_plugin : (unit -> unit) option; + + can_zero : ('a -> bool) option; + can_fua : ('a -> fua_flag) option; + + pread : ('a -> bytes -> int64 -> flags -> unit) option; + pwrite : ('a -> string -> int64 -> flags -> unit) option; + flush : ('a -> flags -> unit) option; + trim : ('a -> int32 -> int64 -> flags -> unit) option; + zero : ('a -> int32 -> int64 -> flags -> unit) option; + + can_multi_conn : ('a -> bool) option; +} + +let default_callbacks = { + name = ""; + longname = ""; + version = ""; + description = ""; + + load = None; + unload = None; + + config = None; + config_complete = None; + config_help = ""; + + open_connection = None; + close = None; + + get_size = None; + + can_write = None; + can_flush = None; + is_rotational = None; + can_trim = None; + + dump_plugin = None; + + can_zero = None; + can_fua = None; + + pread = None; + pwrite = None; + flush = None; + trim = None; + zero = None; + + can_multi_conn = None; +} + +type thread_model = +| THREAD_MODEL_SERIALIZE_CONNECTIONS +| THREAD_MODEL_SERIALIZE_ALL_REQUESTS +| THREAD_MODEL_SERIALIZE_REQUESTS +| THREAD_MODEL_PARALLEL + +external set_thread_model : int -> unit = "ocaml_nbdkit_set_thread_model" "noalloc" + +external set_name : string -> unit = "ocaml_nbdkit_set_name" "noalloc" +external set_longname : string -> unit = "ocaml_nbdkit_set_longname" "noalloc" +external set_version : string -> unit = "ocaml_nbdkit_set_version" "noalloc" +external set_description : string -> unit = "ocaml_nbdkit_set_description" "noalloc" + +external set_load : (unit -> unit) -> unit = "ocaml_nbdkit_set_load" +external set_unload : (unit -> unit) -> unit = "ocaml_nbdkit_set_unload" + +external set_config : (string -> string -> unit) -> unit = "ocaml_nbdkit_set_config" +external set_config_complete : (unit -> unit) -> unit = "ocaml_nbdkit_set_config_complete" +external set_config_help : string -> unit = "ocaml_nbdkit_set_config_help" "noalloc" + +external set_open : (bool -> 'a) -> unit = "ocaml_nbdkit_set_open" +external set_close : ('a -> unit) -> unit = "ocaml_nbdkit_set_close" + +external set_get_size : ('a -> int64) -> unit = "ocaml_nbdkit_set_get_size" + +external set_can_write : ('a -> bool) -> unit = "ocaml_nbdkit_set_can_write" +external set_can_flush : ('a -> bool) -> unit = "ocaml_nbdkit_set_can_flush" +external set_is_rotational : ('a -> bool) -> unit = "ocaml_nbdkit_set_is_rotational" +external set_can_trim : ('a -> bool) -> unit = "ocaml_nbdkit_set_can_trim" + +external set_dump_plugin : (unit -> unit) -> unit = "ocaml_nbdkit_set_dump_plugin" "noalloc" + +external set_can_zero : ('a -> bool) -> unit = "ocaml_nbdkit_set_can_zero" +external set_can_fua : ('a -> fua_flag) -> unit = "ocaml_nbdkit_set_can_fua" + +external set_pread : ('a -> bytes -> int64 -> flags -> unit) -> unit = "ocaml_nbdkit_set_pread" +external set_pwrite : ('a -> string -> int64 -> flags -> unit) -> unit = "ocaml_nbdkit_set_pwrite" +external set_flush : ('a -> flags -> unit) -> unit = "ocaml_nbdkit_set_flush" +external set_trim : ('a -> int32 -> int64 -> flags -> unit) -> unit = "ocaml_nbdkit_set_trim" +external set_zero : ('a -> int32 -> int64 -> flags -> unit) -> unit = "ocaml_nbdkit_set_zero" + +external set_can_multi_conn : ('a -> bool) -> unit = "ocaml_nbdkit_set_can_multi_conn" + +let may f = function None -> () | Some a -> f a + +let register_plugin thread_model plugin = + (* Check the required fields have been set by the caller. *) + if plugin.name = "" then + failwith "'.name' field in NBDKit.plugin structure must be set"; + if plugin.open_connection = None then + failwith (sprintf "%s: '.open_connection' field in NBDKit.plugin structure must be set" + plugin.name); + if plugin.get_size = None then + failwith (sprintf "%s: '.get_size' field in NBDKit.plugin structure must be set" + plugin.name); + if plugin.pread = None then + failwith (sprintf "%s: '.pread' field in NBDKit.plugin structure must be set" + plugin.name); + + (* Set the fields in the C code. *) + set_thread_model (Obj.magic thread_model); + + set_name plugin.name; + if plugin.longname <> "" then + set_longname plugin.longname; + if plugin.version <> "" then + set_version plugin.version; + if plugin.description <> "" then + set_description plugin.description; + + may set_load plugin.load; + may set_unload plugin.unload; + + may set_config plugin.config; + may set_config_complete plugin.config_complete; + if plugin.config_help <> "" then + set_config_help plugin.config_help; + + may set_open plugin.open_connection; + may set_close plugin.close; + + may set_get_size plugin.get_size; + + may set_can_write plugin.can_write; + may set_can_flush plugin.can_flush; + may set_is_rotational plugin.is_rotational; + may set_can_trim plugin.can_trim; + + may set_dump_plugin plugin.dump_plugin; + + may set_can_zero plugin.can_zero; + may set_can_fua plugin.can_fua; + + may set_pread plugin.pread; + may set_pwrite plugin.pwrite; + may set_flush plugin.flush; + may set_trim plugin.trim; + may set_zero plugin.zero; + + may set_can_multi_conn plugin.can_multi_conn + +external _set_error : int -> unit = "ocaml_nbdkit_set_error" "noalloc" + +let set_error unix_error = + (* There's an awkward triple translation going on here, because + * OCaml Unix.error codes, errno on the host system, and NBD_* + * errnos are not all the same integer value. Plus we cannot + * read the host system errno values from OCaml. + *) + let nbd_error = + match unix_error with + | Unix.EPERM -> 1 + | Unix.EIO -> 2 + | Unix.ENOMEM -> 3 + | Unix.EINVAL -> 4 + | Unix.ENOSPC -> 5 + | Unix.ESHUTDOWN -> 6 + | _ -> 4 (* EINVAL *) in + + _set_error nbd_error + +external _debug : string -> unit = "ocaml_nbdkit_debug" "noalloc" + +let debug fs = + ksprintf _debug fs diff --git a/plugins/ocaml/NBDKit.mli b/plugins/ocaml/NBDKit.mli new file mode 100644 index 0000000..d1e1343 --- /dev/null +++ b/plugins/ocaml/NBDKit.mli @@ -0,0 +1,98 @@ +(* nbdkit OCaml interface + * Copyright (C) 2014-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + *) + +(** The interface between nbdkit plugins written in OCaml and nbdkit. + + Reading [nbdkit-ocaml-plugin(3)] is advised. *) + +type flags = flag list +and flag = May_trim | FUA + +type fua_flag = FuaNone | FuaEmulate | FuaNative + +type 'a plugin = { + name : string; (* required *) + longname : string; + version : string; + description : string; + + load : (unit -> unit) option; + unload : (unit -> unit) option; + + config : (string -> string -> unit) option; + config_complete : (unit -> unit) option; + config_help : string; + + open_connection : (bool -> 'a) option; (* required *) + close : ('a -> unit) option; + + get_size : ('a -> int64) option; (* required *) + + can_write : ('a -> bool) option; + can_flush : ('a -> bool) option; + is_rotational : ('a -> bool) option; + can_trim : ('a -> bool) option; + + dump_plugin : (unit -> unit) option; + + can_zero : ('a -> bool) option; + can_fua : ('a -> fua_flag) option; + + pread : ('a -> bytes -> int64 -> flags -> unit) option; (* required *) + pwrite : ('a -> string -> int64 -> flags -> unit) option; + flush : ('a -> flags -> unit) option; + trim : ('a -> int32 -> int64 -> flags -> unit) option; + zero : ('a -> int32 -> int64 -> flags -> unit) option; + + can_multi_conn : ('a -> bool) option; +} +(** The plugin fields and callbacks. ['a] is the handle type. *) + +val default_callbacks : 'a plugin + +type thread_model = +| THREAD_MODEL_SERIALIZE_CONNECTIONS +| THREAD_MODEL_SERIALIZE_ALL_REQUESTS +| THREAD_MODEL_SERIALIZE_REQUESTS +| THREAD_MODEL_PARALLEL + +val register_plugin : thread_model -> 'a plugin -> unit + +val set_error : Unix.error -> unit +(** Set the errno returned over the NBD protocol to the client. + + Notice however that the NBD protocol only supports a small + handful of errno values. Any other errno will be translated + into [EINVAL]. *) + +val debug : ('a, unit, string, unit) format4 -> 'a +(** Print a debug message when nbdkit is in verbose mode. *) diff --git a/plugins/ocaml/nbdkit-ocaml-plugin.pod b/plugins/ocaml/nbdkit-ocaml-plugin.pod new file mode 100644 index 0000000..caacae7 --- /dev/null +++ b/plugins/ocaml/nbdkit-ocaml-plugin.pod @@ -0,0 +1,146 @@ +=head1 NAME + +nbdkit-ocaml-plugin - writing nbdkit plugins in OCaml + +=head1 SYNOPSIS + + nbdkit /path/to/plugin.so [arguments...] + + nbdkit plugin [arguments...] + +=head1 DESCRIPTION + +This manual page describes how to write nbdkit plugins in natively +compiled OCaml code. + +Note this requires OCaml E 4.02.2, which has support for shared +libraries. See L + +=head1 WRITING AN OCAML NBDKIT PLUGIN + +Broadly speaking, OCaml nbdkit plugins work like C ones, so you should +read L first. + +You should also look at C which describes the plugin +interface for OCaml plugins. + +Your OCaml code should call C like this: + + let plugin = { + NBDKit.default_callbacks with + NBDKit.name = "myplugin"; + version = "1.0"; + open_connection = Some myplugin_open; + get_size = Some myplugin_get_size; + pread = Some myplugin_pread; + (* etc *) + } + + let thread_model = NBDKit.THREAD_MODEL_SERIALIZE_CONNECTIONS + + let () = NBDKit.register_plugin thread_model plugin + +Your plugin can only call C once. + +=head2 Compiling an OCaml nbdkit plugin + +OCaml nbdkit plugins are natively compiled into shared object +(C<*.so>) files which nbdkit loads like regular C plugins. + +After writing your OCaml plugin (C), compile and link it +using this command: + + ocamlopt.opt -output-obj -runtime-variant _pic \ + -o nbdkit-myplugin-plugin.so \ + NBDKit.cmx myplugin.ml \ + -cclib -lnbdkitocaml + +You can then use C as an nbdkit plugin (see +L, L): + + nbdkit ./nbdkit-myplugin-plugin.so [args ...] + +or if the C<.so> file is installed in the C<$plugindir> directory: + + nbdkit myplugin [args ...] + +=head2 Handle + +Your C callback can return an OCaml value of any +type. The same value is passed back to the per-connection callbacks +like C and C. + +Typically (although this is not a requirement) you define your own +handle struct in your plugin: + + type handle = { + (* any per-connection data you want to store goes here *) + h_id : int; (* this is just an example field *) + h_readonly : bool; + } + + let id = ref 0 + let myplugin_open readonly = + (* return a newly allocated handle *) + incr id; + { h_id = !id; h_readonly = readonly } + + let myplugin_get_size handle = + printf "handle ID = %d\n" handle.h_id; + (* ... *) + +=head2 Errors + +Plugins can return errors from methods by raising an exception. + +If you need to control which errno is sent back to the client you have +to call C before raising the exception. + +Note if you call some function in the OCaml C module or another +library which fails, then the errno of the failing system call will +not be returned to the client. You have to catch the exception and +call C before re-raising the exception if you need +to control this. + +=head2 Threads + +The first parameter of C is the thread model, +which can be one of the values in the table below. For more +information on thread models, see L. Note +that because of the garbage collector lock in OCaml, callbacks are +never truly concurrent. + +=over 4 + +=item C + +=item C + +=item C + +=item C + +=back + +=head2 Debugging + +You can add debugging messages which are printed only when nbdkit is +in verbose mode by calling: + + NBDKit.debug fs [...] + +This function works like C. + +=head1 SEE ALSO + +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2014 Red Hat Inc. diff --git a/plugins/ocaml/ocaml.c b/plugins/ocaml/ocaml.c new file mode 100644 index 0000000..7193842 --- /dev/null +++ b/plugins/ocaml/ocaml.c @@ -0,0 +1,699 @@ +/* nbdkit + * Copyright (C) 2014-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +#define NBDKIT_API_VERSION 2 + +#include + +/* This constructor runs when the plugin loads, and initializes the + * OCaml runtime, and lets the plugin set up its callbacks. + */ +static void constructor (void) __attribute__((constructor)); +static void +constructor (void) +{ + char *argv[2] = { "nbdkit", NULL }; + + /* Initialize OCaml runtime. */ + caml_startup (argv); +} + +/* Instead of using the NBDKIT_REGISTER_PLUGIN macro, we construct the + * nbdkit_plugin struct and return it. + */ +static void unload_wrapper (void); + +static struct nbdkit_plugin plugin = { + ._struct_size = sizeof (plugin), + ._api_version = NBDKIT_API_VERSION, + + /* The following field is used as a canary to detect whether the + * OCaml code started up and called us back successfully. If it's + * still set to NULL when plugin_init is called, then we can print a + * suitable error message. + */ + .name = NULL, + + .unload = unload_wrapper, +}; + +/* These globals store the OCaml functions that we actually call. + * Also the assigned ones are roots to ensure the GC doesn't free them. + */ +static value load_fn; +static value unload_fn; + +static value config_fn; +static value config_complete_fn; + +static value open_fn; +static value close_fn; + +static value get_size_fn; + +static value can_write_fn; +static value can_flush_fn; +static value is_rotational_fn; +static value can_trim_fn; + +static value dump_plugin_fn; + +static value can_zero_fn; +static value can_fua_fn; + +static value pread_fn; +static value pwrite_fn; +static value flush_fn; +static value trim_fn; +static value zero_fn; + +static value can_multi_conn_fn; + +/* Wrapper functions that translate calls from C (ie. nbdkit) to OCaml. */ + +static void +load_wrapper (void) +{ + caml_leave_blocking_section (); + caml_callback (load_fn, Val_unit); + caml_enter_blocking_section (); +} + +/* We always have an unload function, since it also has to free the + * globals we allocated. + */ +static void +unload_wrapper (void) +{ + if (unload_fn) { + caml_leave_blocking_section (); + caml_callback (unload_fn, Val_unit); + caml_enter_blocking_section (); + } + + free ((char *) plugin.name); + free ((char *) plugin.longname); + free ((char *) plugin.version); + free ((char *) plugin.description); + free ((char *) plugin.config_help); + +#define REMOVE(fn) \ + if (fn##_fn) caml_remove_generational_global_root (&fn##_fn) + REMOVE (load); + REMOVE (unload); + + REMOVE (config); + REMOVE (config_complete); + + REMOVE (open); + REMOVE (close); + + REMOVE (get_size); + + REMOVE (can_write); + REMOVE (can_flush); + REMOVE (is_rotational); + REMOVE (can_trim); + + REMOVE (dump_plugin); + + REMOVE (can_zero); + REMOVE (can_fua); + + REMOVE (pread); + REMOVE (pwrite); + REMOVE (flush); + REMOVE (trim); + REMOVE (zero); + + REMOVE (can_multi_conn); +} + +static int +config_wrapper (const char *key, const char *val) +{ + CAMLparam0 (); + CAMLlocal3 (keyv, valv, rv); + + caml_leave_blocking_section (); + + keyv = caml_copy_string (key); + valv = caml_copy_string (val); + + rv = caml_callback2_exn (config_fn, keyv, valv); + if (Is_exception_result (rv)) { + nbdkit_error ("%s", caml_format_exception (Extract_exception (rv))); + caml_enter_blocking_section (); + CAMLreturnT (int, -1); + } + + caml_enter_blocking_section (); + CAMLreturnT (int, 0); +} + +static int +config_complete_wrapper (void) +{ + CAMLparam0 (); + CAMLlocal1 (rv); + + caml_leave_blocking_section (); + + rv = caml_callback_exn (config_complete_fn, Val_unit); + if (Is_exception_result (rv)) { + nbdkit_error ("%s", caml_format_exception (Extract_exception (rv))); + caml_enter_blocking_section (); + CAMLreturnT (int, -1); + } + + caml_enter_blocking_section (); + CAMLreturnT (int, 0); +} + +static void * +open_wrapper (int readonly) +{ + CAMLparam0 (); + CAMLlocal1 (rv); + value *ret; + + caml_leave_blocking_section (); + + rv = caml_callback_exn (open_fn, Val_bool (readonly)); + if (Is_exception_result (rv)) { + nbdkit_error ("%s", caml_format_exception (Extract_exception (rv))); + caml_enter_blocking_section (); + CAMLreturnT (void *, NULL); + } + + /* Allocate a root on the C heap that points to the OCaml handle. */ + ret = malloc (sizeof *ret); + if (ret == NULL) abort (); + *ret = rv; + caml_register_generational_global_root (ret); + + caml_enter_blocking_section (); + CAMLreturnT (void *, ret); +} + +static void +close_wrapper (void *h) +{ + CAMLparam0 (); + CAMLlocal1 (rv); + + caml_leave_blocking_section (); + + rv = caml_callback_exn (close_fn, *(value *) h); + if (Is_exception_result (rv)) { + nbdkit_error ("%s", caml_format_exception (Extract_exception (rv))); + /*FALLTHROUGH*/ + } + + caml_remove_generational_global_root (h); + free (h); + + caml_enter_blocking_section (); + CAMLreturn0; +} + +static int64_t +get_size_wrapper (void *h) +{ + CAMLparam0 (); + CAMLlocal1 (rv); + int64_t r; + + caml_leave_blocking_section (); + + rv = caml_callback_exn (get_size_fn, *(value *) h); + if (Is_exception_result (rv)) { + nbdkit_error ("%s", caml_format_exception (Extract_exception (rv))); + caml_enter_blocking_section (); + CAMLreturnT (int64_t, -1); + } + + r = Int64_val (rv); + + caml_enter_blocking_section (); + CAMLreturnT (int64_t, r); +} + +static int +can_write_wrapper (void *h) +{ + CAMLparam0 (); + CAMLlocal1 (rv); + + caml_leave_blocking_section (); + + rv = caml_callback_exn (can_write_fn, *(value *) h); + if (Is_exception_result (rv)) { + nbdkit_error ("%s", caml_format_exception (Extract_exception (rv))); + caml_enter_blocking_section (); + CAMLreturnT (int, -1); + } + + caml_enter_blocking_section (); + CAMLreturnT (int, Bool_val (rv)); +} + +static int +can_flush_wrapper (void *h) +{ + CAMLparam0 (); + CAMLlocal1 (rv); + + caml_leave_blocking_section (); + + rv = caml_callback_exn (can_flush_fn, *(value *) h); + if (Is_exception_result (rv)) { + nbdkit_error ("%s", caml_format_exception (Extract_exception (rv))); + caml_enter_blocking_section (); + CAMLreturnT (int, -1); + } + + caml_enter_blocking_section (); + CAMLreturnT (int, Bool_val (rv)); +} + +static int +is_rotational_wrapper (void *h) +{ + CAMLparam0 (); + CAMLlocal1 (rv); + + caml_leave_blocking_section (); + + rv = caml_callback_exn (is_rotational_fn, *(value *) h); + if (Is_exception_result (rv)) { + nbdkit_error ("%s", caml_format_exception (Extract_exception (rv))); + caml_enter_blocking_section (); + CAMLreturnT (int, -1); + } + + caml_enter_blocking_section (); + CAMLreturnT (int, Bool_val (rv)); +} + +static int +can_trim_wrapper (void *h) +{ + CAMLparam0 (); + CAMLlocal1 (rv); + + caml_leave_blocking_section (); + + rv = caml_callback_exn (can_trim_fn, *(value *) h); + if (Is_exception_result (rv)) { + nbdkit_error ("%s", caml_format_exception (Extract_exception (rv))); + caml_enter_blocking_section (); + CAMLreturnT (int, -1); + } + + caml_enter_blocking_section (); + CAMLreturnT (int, Bool_val (rv)); +} + +static void +dump_plugin_wrapper (void) +{ + CAMLparam0 (); + CAMLlocal1 (rv); + + caml_leave_blocking_section (); + + rv = caml_callback_exn (dump_plugin_fn, Val_unit); + if (Is_exception_result (rv)) + nbdkit_error ("%s", caml_format_exception (Extract_exception (rv))); + caml_enter_blocking_section (); + CAMLreturn0; +} + +static int +can_zero_wrapper (void *h) +{ + CAMLparam0 (); + CAMLlocal1 (rv); + + caml_leave_blocking_section (); + + rv = caml_callback_exn (can_zero_fn, *(value *) h); + if (Is_exception_result (rv)) { + nbdkit_error ("%s", caml_format_exception (Extract_exception (rv))); + caml_enter_blocking_section (); + CAMLreturnT (int, -1); + } + + caml_enter_blocking_section (); + CAMLreturnT (int, Bool_val (rv)); +} + +static int +can_fua_wrapper (void *h) +{ + CAMLparam0 (); + CAMLlocal1 (rv); + + caml_leave_blocking_section (); + + rv = caml_callback_exn (can_fua_fn, *(value *) h); + if (Is_exception_result (rv)) { + nbdkit_error ("%s", caml_format_exception (Extract_exception (rv))); + caml_enter_blocking_section (); + CAMLreturnT (int, -1); + } + + caml_enter_blocking_section (); + CAMLreturnT (int, Int_val (rv)); +} + +static value +Val_flags (uint32_t flags) +{ + CAMLparam0 (); + CAMLlocal2 (consv, rv); + + rv = Val_unit; + if (flags & NBDKIT_FLAG_MAY_TRIM) { + consv = caml_alloc (2, 0); + Store_field (consv, 0, 0); /* 0 = May_trim */ + Store_field (consv, 1, rv); + rv = consv; + } + if (flags & NBDKIT_FLAG_FUA) { + consv = caml_alloc (2, 0); + Store_field (consv, 0, 1); /* 1 = FUA */ + Store_field (consv, 1, rv); + rv = consv; + } + + CAMLreturn (rv); +} + +static int +pread_wrapper (void *h, void *buf, uint32_t count, uint64_t offset, + uint32_t flags) +{ + CAMLparam0 (); + CAMLlocal4 (rv, strv, offsetv, flagsv); + + caml_leave_blocking_section (); + + strv = caml_alloc_string (count); + /* Initialize the buffer with zeroes in case the plugin does not + * fill it completely. + */ + memset (String_val (strv), 0, count); + offsetv = caml_copy_int64 (offset); + flagsv = Val_flags (flags); + + value args[] = { *(value *) h, strv, offsetv, flagsv }; + rv = caml_callbackN_exn (pread_fn, sizeof args / sizeof args[0], args); + if (Is_exception_result (rv)) { + nbdkit_error ("%s", caml_format_exception (Extract_exception (rv))); + caml_enter_blocking_section (); + CAMLreturnT (int, -1); + } + + memcpy (buf, String_val (strv), count); + + caml_enter_blocking_section (); + CAMLreturnT (int, 0); +} + +static int +pwrite_wrapper (void *h, const void *buf, uint32_t count, uint64_t offset, + uint32_t flags) +{ + CAMLparam0 (); + CAMLlocal4 (rv, strv, offsetv, flagsv); + + caml_leave_blocking_section (); + + strv = caml_alloc_string (count); + memcpy (String_val (strv), buf, count); + offsetv = caml_copy_int64 (offset); + flagsv = Val_flags (flags); + + value args[] = { *(value *) h, strv, offsetv, flagsv }; + rv = caml_callbackN_exn (pwrite_fn, sizeof args / sizeof args[0], args); + if (Is_exception_result (rv)) { + nbdkit_error ("%s", caml_format_exception (Extract_exception (rv))); + caml_enter_blocking_section (); + CAMLreturnT (int, -1); + } + + caml_enter_blocking_section (); + CAMLreturnT (int, 0); +} + +static int +flush_wrapper (void *h, uint32_t flags) +{ + CAMLparam0 (); + CAMLlocal2 (rv, flagsv); + + caml_leave_blocking_section (); + + flagsv = Val_flags (flags); + + rv = caml_callback2_exn (flush_fn, *(value *) h, flagsv); + if (Is_exception_result (rv)) { + nbdkit_error ("%s", caml_format_exception (Extract_exception (rv))); + CAMLreturnT (int, -1); + } + + caml_enter_blocking_section (); + CAMLreturnT (int, 0); +} + +static int +trim_wrapper (void *h, uint32_t count, uint64_t offset, uint32_t flags) +{ + CAMLparam0 (); + CAMLlocal4 (rv, countv, offsetv, flagsv); + + caml_leave_blocking_section (); + + countv = caml_copy_int32 (count); + offsetv = caml_copy_int32 (offset); + flagsv = Val_flags (flags); + + value args[] = { *(value *) h, countv, offsetv, flagsv }; + rv = caml_callbackN_exn (trim_fn, sizeof args / sizeof args[0], args); + if (Is_exception_result (rv)) { + nbdkit_error ("%s", caml_format_exception (Extract_exception (rv))); + CAMLreturnT (int, -1); + } + + caml_enter_blocking_section (); + CAMLreturnT (int, 0); +} + +static int +zero_wrapper (void *h, uint32_t count, uint64_t offset, uint32_t flags) +{ + CAMLparam0 (); + CAMLlocal4 (rv, countv, offsetv, flagsv); + + caml_leave_blocking_section (); + + countv = caml_copy_int32 (count); + offsetv = caml_copy_int32 (offset); + flagsv = Val_flags (flags); + + value args[] = { *(value *) h, countv, offsetv, flagsv }; + rv = caml_callbackN_exn (zero_fn, sizeof args / sizeof args[0], args); + if (Is_exception_result (rv)) { + nbdkit_error ("%s", caml_format_exception (Extract_exception (rv))); + CAMLreturnT (int, -1); + } + + caml_enter_blocking_section (); + CAMLreturnT (int, 0); +} + +static int +can_multi_conn_wrapper (void *h) +{ + CAMLparam0 (); + CAMLlocal1 (rv); + + caml_leave_blocking_section (); + + rv = caml_callback_exn (can_multi_conn_fn, *(value *) h); + if (Is_exception_result (rv)) { + nbdkit_error ("%s", caml_format_exception (Extract_exception (rv))); + caml_enter_blocking_section (); + CAMLreturnT (int, -1); + } + + caml_enter_blocking_section (); + CAMLreturnT (int, Bool_val (rv)); +} + +value +ocaml_nbdkit_set_thread_model (value modelv) +{ + plugin._thread_model = Int_val (modelv); + return Val_unit; +} + +value +ocaml_nbdkit_set_name (value namev) +{ + plugin.name = strdup (String_val (namev)); + return Val_unit; +} + +value +ocaml_nbdkit_set_longname (value longnamev) +{ + plugin.longname = strdup (String_val (longnamev)); + return Val_unit; +} + +value +ocaml_nbdkit_set_version (value versionv) +{ + plugin.version = strdup (String_val (versionv)); + return Val_unit; +} + +value +ocaml_nbdkit_set_description (value descriptionv) +{ + plugin.description = strdup (String_val (descriptionv)); + return Val_unit; +} + +value +ocaml_nbdkit_set_config_help (value helpv) +{ + plugin.config_help = strdup (String_val (helpv)); + return Val_unit; +} + +#define SET(fn) \ + value \ + ocaml_nbdkit_set_##fn (value fv) \ + { \ + plugin.fn = fn##_wrapper; \ + fn##_fn = fv; \ + caml_register_generational_global_root (&fn##_fn); \ + return Val_unit; \ + } + +SET(load) +SET(unload) + +SET(config) +SET(config_complete) + +SET(open) +SET(close) + +SET(get_size) + +SET(can_write) +SET(can_flush) +SET(is_rotational) +SET(can_trim) + +SET(dump_plugin) + +SET(can_zero) +SET(can_fua) + +SET(pread) +SET(pwrite) +SET(flush) +SET(trim) +SET(zero) + +SET(can_multi_conn) + +/* NB: noalloc function. */ +value +ocaml_nbdkit_set_error (value nv) +{ + int err; + + switch (Int_val (nv)) { + case 1: err = EPERM; break; + case 2: err = EIO; break; + case 3: err = ENOMEM; break; + case 4: err = EINVAL; break; + case 5: err = ENOSPC; break; + case 6: err = ESHUTDOWN; break; + default: abort (); + } + + nbdkit_set_error (err); + + return Val_unit; +} + +/* NB: noalloc function. */ +value +ocaml_nbdkit_debug (value strv) +{ + nbdkit_debug ("%s", String_val (strv)); + + return Val_unit; +} + +/* We can't directly use NBDKIT_REGISTER_PLUGIN(). */ +struct nbdkit_plugin * +plugin_init (void) +{ + if (plugin.name == NULL) { + fprintf (stderr, "error: OCaml code did not call NBDKit.register_plugin\n"); + exit (EXIT_FAILURE); + } + return &plugin; +} diff --git a/plugins/partitioning/Makefile.am b/plugins/partitioning/Makefile.am new file mode 100644 index 0000000..0b38675 --- /dev/null +++ b/plugins/partitioning/Makefile.am @@ -0,0 +1,71 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-partitioning-plugin.pod + +plugin_LTLIBRARIES = nbdkit-partitioning-plugin.la + +nbdkit_partitioning_plugin_la_SOURCES = \ + partitioning.c \ + partition-gpt.c \ + partition-mbr.c \ + virtual-disk.c \ + virtual-disk.h \ + $(top_srcdir)/include/nbdkit-plugin.h + +nbdkit_partitioning_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/gpt \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/common/regions \ + -I. +nbdkit_partitioning_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_partitioning_plugin_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms +nbdkit_partitioning_plugin_la_LIBADD = \ + $(top_builddir)/common/gpt/libgpt.la \ + $(top_builddir)/common/regions/libregions.la + +if HAVE_POD + +man_MANS = nbdkit-partitioning-plugin.1 +CLEANFILES += $(man_MANS) + +nbdkit-partitioning-plugin.1: nbdkit-partitioning-plugin.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/plugins/partitioning/Makefile.in b/plugins/partitioning/Makefile.in new file mode 100644 index 0000000..c857dd0 --- /dev/null +++ b/plugins/partitioning/Makefile.in @@ -0,0 +1,932 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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/dev/null +++ b/plugins/partitioning/nbdkit-partitioning-plugin.pod @@ -0,0 +1,186 @@ +=head1 NAME + +nbdkit-partitioning-plugin - create virtual disk from partitions + +=head1 SYNOPSIS + + nbdkit partitioning [file=]part1 [[file=]part2 [file=]part3 ...] + [partition-type=mbr|gpt] + +=head1 DESCRIPTION + +C is a plugin for L which +creates a partitioned virtual drive from a list of one or more files +each containing single partitions. The plugin concatenates the files +together and generates a virtual partition table so that NBD clients +see a single partitioned disk. + +If you just want to concatenate files together (without adding a +partition table) use L. If you want to select +a single partition from an existing disk, use +L. If you want to create a complete disk +with a filesystem, look at L, +L or L. + +The plugin supports read/write access. To limit clients to read-only +access use the I<-r> flag. + +=head2 Partition table type + +Using the C parameter you can choose either an MBR or +a GPT partition table. If this parameter is I present then: + +=over 4 + +=item number of files E 4 + +⇒ GPT + +=item else, total file size is larger than supported by MBR +(approx. 2 TB) + +⇒ GPT + +=item otherwise + +⇒ MBR (for maximum compatibility with clients) + +=back + +=head2 Type of each partition + +The type of each partition is controlled by a partition type byte (for +MBR) or a partition type GUID (for GPT). This can be set using the +C or C parameters respectively and affects the type +of all following files. + +=head2 Padding and alignment + +Partition sizes are automatically rounded up to a multiple of the 512 +byte sector size. + +Padding may be added between partitions to provide the best alignment. +This is controlled by the C parameter, which affects the +alignment of all following files. + +=head2 Writing to the virtual disk + +NBD clients may read and write freely to partitions. Writes are +propagated through to the underlying files. + +NBD clients may read from the virtual partition table, and padding +areas of the virtual disk. When reading from padding areas, clients +will see zeroes. + +NBD clients will get an I/O error if they try to change the virtual +partition table or padding areas. + +=head1 EXAMPLES + +From a bare filesystem stored in a file, create a virtual disk with a +single partition containing the filesystem: + + nbdkit partitioning ext4fs.img + +Create a virtual disk containing boot, swap and root partitions: + + nbdkit partitioning \ + boot.img \ + mbr-id=0x82 swap.img mbr-id=0x83 \ + root.img + +This will not be bootable since the virtual partition table does not +contain a boot sector or boot loader. + +Notice that the swap partition is bracketed by C to set +the MBR partition type byte to C<0x82> (Linux swap) for the swap +partition, followed by C to set the MBR partition type +byte back to C<0x83> (Linux filesystem) for the remaining partition. + +If F has a size which is a multiple of 512 bytes then this +is a no-op because the partitioning plugin adds a partition table +which is then removed by L: + + nbdkit --filter=partition partitioning file.raw partition=1 + +=head1 PARAMETERS + +=over 4 + +=item [B]FILENAME + +One or more files containing partition data. + +This parameter is required. + +C is a magic config key and may be omitted in most cases. +See L. + +=item B + +Add an MBR (DOS-style) partition table. The MBR format is maximally +compatible with all clients. + +If there are E 4 partitions then the first three files are mapped +to primary partitions, an extended partition +(L) is created as +partition 4, and the files starting from the 4th will appear as +partition 5 and upwards. + +=item B + +Add a GPT partition table. Note that as well as the virtual primary +partition table added at the beginning of the disk, a virtual +secondary partition table is added at the end, as required by GPT. +Also this adds a "protective MBR" as defined by the UEFI spec so that +old clients which don't understand GPT will ignore the partitions. + +=item BN + +Set the alignment of all following files to C bytes. The default +alignment is 1M (2048 sectors). + +=item B0xN + +Set the MBR type byte of all following files to C<0xN>. Type bytes +are normally specified in hexadecimal, and you must use the C<0x> +prefix to indicate this. The default is C<0x83> which indicates a +Linux filesystem. + +=item BGUID + +Set the GPT partition type GUID of all following files to C. +The default is C<0FC63DAF-8483-4772-8E79-3D69D8477DE4> which indicates +a Linux filesystem. + +=back + +=head1 LIMITS + +Although this plugin can create GPT partition tables containing more +than 128 GPT partitions (in fact, unlimited numbers of partitions), +some clients will not be able to handle this. + +Zero length partitions are not allowed and will cause nbdkit to exit +with an error when it starts up. + +The sector size is fixed at 512 bytes. + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/plugins/partitioning/partition-gpt.c b/plugins/partitioning/partition-gpt.c new file mode 100644 index 0000000..ed84298 --- /dev/null +++ b/plugins/partitioning/partition-gpt.c @@ -0,0 +1,287 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "byte-swapping.h" + +#include "efi-crc32.h" +#include "gpt.h" +#include "regions.h" +#include "virtual-disk.h" + +static void create_gpt_partition_header (const void *pt, bool is_primary, + unsigned char *out); +static void create_gpt_partition_table (unsigned char *out); +static void create_gpt_partition_table_entry (const struct region *region, + bool bootable, + char partition_type_guid[16], + unsigned char *out); +static void create_gpt_protective_mbr (unsigned char *out); + +void +create_gpt_layout (void) +{ + void *pt; + + /* Protective MBR. LBA 0 */ + create_gpt_protective_mbr (primary); + + /* Primary partition table. LBA 2-(LBAs+1) */ + pt = &primary[2*SECTOR_SIZE]; + create_gpt_partition_table (pt); + + /* Partition table header. LBA 1 */ + create_gpt_partition_header (pt, true, &primary[SECTOR_SIZE]); + + /* Backup partition table. LBA -(LBAs+2) */ + pt = secondary; + create_gpt_partition_table (pt); + + /* Backup partition table header. LBA -1 */ + create_gpt_partition_header (pt, false, &secondary[GPT_PTA_LBAs*SECTOR_SIZE]); +} + +static void +create_gpt_partition_header (const void *pt, bool is_primary, + unsigned char *out) +{ + uint64_t nr_lbas; + struct gpt_header *header = (struct gpt_header *) out; + + nr_lbas = virtual_size (®ions) / SECTOR_SIZE; + + memset (header, 0, sizeof *header); + memcpy (header->signature, GPT_SIGNATURE, sizeof (header->signature)); + memcpy (header->revision, GPT_REVISION, sizeof (header->revision)); + header->header_size = htole32 (sizeof *header); + if (is_primary) { + header->current_lba = htole64 (1); + header->backup_lba = htole64 (nr_lbas - 1); + } + else { + header->current_lba = htole64 (nr_lbas - 1); + header->backup_lba = htole64 (1); + } + header->first_usable_lba = htole64 (2 + GPT_PTA_LBAs); + header->last_usable_lba = htole64 (nr_lbas - GPT_PTA_LBAs - 2); + if (is_primary) + header->partition_entries_lba = htole64 (2); + else + header->partition_entries_lba = htole64 (nr_lbas - GPT_PTA_LBAs - 1); + header->nr_partition_entries = htole32 (GPT_PTA_SIZE); + header->size_partition_entry = htole32 (GPT_PT_ENTRY_SIZE); + header->crc_partitions = + htole32 (efi_crc32 (pt, GPT_PT_ENTRY_SIZE * GPT_PTA_SIZE)); + + /* Must be computed last. */ + header->crc = htole32 (efi_crc32 (header, sizeof *header)); +} + +static void +create_gpt_partition_table (unsigned char *out) +{ + size_t i, j; + + for (j = 0; j < nr_regions (®ions); ++j) { + const struct region *region = get_region (®ions, j); + + if (region->type == region_file) { + i = region->u.i; + assert (i < GPT_PTA_SIZE); + create_gpt_partition_table_entry (region, i == 0, + files[i].type_guid, + out); + out += GPT_PT_ENTRY_SIZE; + } + } +} + +static void +create_gpt_partition_table_entry (const struct region *region, + bool bootable, + char partition_type_guid[16], + unsigned char *out) +{ + size_t i, len; + const char *filename; + struct gpt_entry *entry = (struct gpt_entry *) out; + + assert (sizeof (struct gpt_entry) == GPT_PT_ENTRY_SIZE); + + memcpy (entry->partition_type_guid, partition_type_guid, 16); + + memcpy (entry->unique_guid, files[region->u.i].guid, 16); + + entry->first_lba = htole64 (region->start / SECTOR_SIZE); + entry->last_lba = htole64 (region->end / SECTOR_SIZE); + entry->attributes = htole64 (bootable ? 4 : 0); + + /* If the filename is 7 bit ASCII then this will reproduce it as a + * UTF-16LE string. + * + * Is this a security risk? It reveals something about paths on the + * server to clients. XXX + */ + filename = files[region->u.i].filename; + len = strlen (filename); + if (len < 36) { + for (i = 0; i < len; ++i) + if (filename[i] > 127) + goto out; + + for (i = 0; i < len; ++i) { + entry->name[2*i] = filename[i]; + entry->name[2*i+1] = 0; + } + } + out: ; +} + +static void +create_gpt_protective_mbr (unsigned char *out) +{ + struct region region; + uint64_t end; + + /* Protective MBR creates a partition with partition ID 0xee which + * covers the whole of the disk, or as much of the disk as + * expressible with MBR. + */ + region.start = 512; + end = virtual_size (®ions) - 1; + if (end > UINT32_MAX * SECTOR_SIZE) + end = UINT32_MAX * SECTOR_SIZE; + region.end = end; + region.len = region.end - region.start + 1; + + create_mbr_partition_table_entry (®ion, false, 0xee, &out[0x1be]); + + /* Boot signature. */ + out[0x1fe] = 0x55; + out[0x1ff] = 0xaa; +} + +/* Try to parse a GPT GUID. */ +static unsigned char +hexdigit (const char c) +{ + if (c >= '0' && c <= '9') + return c - '0'; + else if (c >= 'a' && c <= 'f') + return c - 'a' + 10; + else /* if (c >= 'A' && c <= 'F') */ + return c - 'A' + 10; +} + +static unsigned char +hexbyte (const char *p) +{ + unsigned char c0, c1; + + c0 = hexdigit (p[0]); + c1 = hexdigit (p[1]); + return c0 << 4 | c1; +} + +int +parse_guid (const char *str, char *out) +{ + size_t i; + size_t len = strlen (str); + + if (len == 36) + /* nothing */; + else if (len == 38 && str[0] == '{' && str[37] == '}') { + str++; + len -= 2; + } + else + return -1; + + assert (len == 36); + + if (str[8] != '-' || str[13] != '-' || str[18] != '-' || str[23] != '-') + return -1; + + for (i = 0; i < 8; ++i) + if (!isxdigit (str[i])) + return -1; + for (i = 9; i < 13; ++i) + if (!isxdigit (str[i])) + return -1; + for (i = 14; i < 18; ++i) + if (!isxdigit (str[i])) + return -1; + for (i = 19; i < 23; ++i) + if (!isxdigit (str[i])) + return -1; + for (i = 24; i < 36; ++i) + if (!isxdigit (str[i])) + return -1; + + /* The first, second and third blocks are parsed as little endian, + * while the fourth and fifth blocks are big endian. + */ + *out++ = hexbyte (&str[6]); /* first block */ + *out++ = hexbyte (&str[4]); + *out++ = hexbyte (&str[2]); + *out++ = hexbyte (&str[0]); + + *out++ = hexbyte (&str[11]); /* second block */ + *out++ = hexbyte (&str[9]); + + *out++ = hexbyte (&str[16]); /* third block */ + *out++ = hexbyte (&str[14]); + + *out++ = hexbyte (&str[19]); /* fourth block */ + *out++ = hexbyte (&str[21]); + + *out++ = hexbyte (&str[24]); /* fifth block */ + *out++ = hexbyte (&str[26]); + *out++ = hexbyte (&str[28]); + *out++ = hexbyte (&str[30]); + *out++ = hexbyte (&str[32]); + *out++ = hexbyte (&str[34]); + + return 0; +} diff --git a/plugins/partitioning/partition-mbr.c b/plugins/partitioning/partition-mbr.c new file mode 100644 index 0000000..971e694 --- /dev/null +++ b/plugins/partitioning/partition-mbr.c @@ -0,0 +1,210 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include + +#include + +#include "byte-swapping.h" + +#include "isaligned.h" +#include "rounding.h" + +#include "regions.h" +#include "virtual-disk.h" + +static const struct region *find_file_region (size_t i, size_t *j); +static const struct region *find_ebr_region (size_t i, size_t *j); + +/* Create the MBR and optionally EBRs. */ +void +create_mbr_layout (void) +{ + size_t i, j = 0; + + /* Boot signature. */ + primary[0x1fe] = 0x55; + primary[0x1ff] = 0xaa; + + if (nr_files <= 4) { + /* Basic MBR with no extended partition. */ + for (i = 0; i < nr_files; ++i) { + const struct region *region = find_file_region (i, &j); + + create_mbr_partition_table_entry (region, i == 0, files[i].mbr_id, + &primary[0x1be + 16*i]); + } + } + else { + struct region region; + const struct region *rptr, *eptr0, *eptr; + + /* The first three primary partitions correspond to the first + * three files. + */ + for (i = 0; i < 3; ++i) { + rptr = find_file_region (i, &j); + create_mbr_partition_table_entry (rptr, i == 0, files[i].mbr_id, + &primary[0x1be + 16*i]); + } + + /* The fourth partition is an extended PTE and does not correspond + * to any file. This partition starts with the first EBR, so find + * it. The partition extends to the end of the disk. + */ + eptr0 = find_ebr_region (3, &j); + region.start = eptr0->start; + region.end = virtual_size (®ions) - 1; /* to end of disk */ + region.len = region.end - region.start + 1; + create_mbr_partition_table_entry (®ion, false, 0xf, &primary[0x1ee]); + + /* The remaining files are mapped to logical partitions living in + * the fourth extended partition. + */ + for (i = 3; i < nr_files; ++i) { + if (i == 3) + eptr = eptr0; + else + eptr = find_ebr_region (i, &j); + rptr = find_file_region (i, &j); + + /* Signature. */ + ebr[i-3][0x1fe] = 0x55; + ebr[i-3][0x1ff] = 0xaa; + + /* First entry in EBR contains: + * offset from EBR sector to the first sector of the logical partition + * total count of sectors in the logical partition + */ + region.start = rptr->start - eptr->start; + region.len = rptr->len; + create_mbr_partition_table_entry (®ion, false, files[i].mbr_id, + &ebr[i-3][0x1be]); + + if (i < nr_files-1) { + size_t j2 = j; + const struct region *enext = find_ebr_region (i+1, &j2); + const struct region *rnext = find_file_region (i+1, &j2); + + /* Second entry in the EBR contains: + * address of next EBR relative to extended partition + * total count of sectors in the next logical partition including + * next EBR + */ + region.start = enext->start - eptr0->start; + region.len = rnext->end - enext->start + 1; + create_mbr_partition_table_entry (®ion, false, 0xf, + &ebr[i-3][0x1ce]); + } + } + } +} + +/* Find the region corresponding to file[i]. + * j is a scratch register ensuring we only do a linear scan. + */ +static const struct region * +find_file_region (size_t i, size_t *j) +{ + const struct region *region; + + for (; *j < nr_regions (®ions); ++(*j)) { + region = get_region (®ions, *j); + if (region->type == region_file && region->u.i == i) + return region; + } + abort (); +} + +/* Find the region corresponding to EBR of file[i] (i >= 3). + * j is a scratch register ensuring we only do a linear scan. + */ +static const struct region * +find_ebr_region (size_t i, size_t *j) +{ + const struct region *region; + + assert (i >= 3); + + for (; *j < nr_regions (®ions); ++(*j)) { + region = get_region (®ions, *j); + if (region->type == region_data && region->u.data == ebr[i-3]) + return region; + } + abort (); +} + +static void +chs_too_large (unsigned char *out) +{ + const int c = 1023, h = 254, s = 63; + + out[0] = h; + out[1] = (c & 0x300) >> 2 | s; + out[2] = c & 0xff; +} + +void +create_mbr_partition_table_entry (const struct region *region, + bool bootable, int partition_id, + unsigned char *out) +{ + uint64_t start_sector, nr_sectors; + uint32_t u32; + + assert (IS_ALIGNED (region->start, SECTOR_SIZE)); + + start_sector = region->start / SECTOR_SIZE; + nr_sectors = DIV_ROUND_UP (region->len, SECTOR_SIZE); + + /* The total_size test in partitioning_config_complete should catch + * this earlier. + */ + assert (start_sector <= UINT32_MAX); + assert (nr_sectors <= UINT32_MAX); + + out[0] = bootable ? 0x80 : 0; + chs_too_large (&out[1]); + out[4] = partition_id; + chs_too_large (&out[5]); + u32 = htole32 (start_sector); + memcpy (&out[8], &u32, 4); + u32 = htole32 (nr_sectors); + memcpy (&out[12], &u32, 4); +} diff --git a/plugins/partitioning/partitioning.c b/plugins/partitioning/partitioning.c new file mode 100644 index 0000000..f3668ca --- /dev/null +++ b/plugins/partitioning/partitioning.c @@ -0,0 +1,438 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "byte-swapping.h" +#include "isaligned.h" +#include "iszero.h" +#include "rounding.h" + +#include "random.h" +#include "regions.h" +#include "virtual-disk.h" + +#ifndef HAVE_FDATASYNC +#define fdatasync fsync +#endif + +/* Debug flag: -D partitioning.regions=1: Print the regions table. */ +int partitioning_debug_regions; + +/* alignment, mbr_id, type_guid set on the command line for + * following partitions. + */ +unsigned long alignment = DEFAULT_ALIGNMENT; +int mbr_id = DEFAULT_MBR_ID; +char type_guid[16]; /* initialized by partitioning_load function below */ + +/* partition-type parameter. */ +int parttype = PARTTYPE_UNSET; + +/* Files supplied on the command line. */ +struct file *files = NULL; +size_t nr_files = 0; + +/* Virtual disk layout. */ +struct regions regions; + +/* Primary and secondary partition tables and extended boot records. + * Secondary PT is only used for GPT. EBR array of sectors is only + * used for MBR with > 4 partitions and has length equal to nr_files-3. + */ +unsigned char *primary = NULL, *secondary = NULL, **ebr = NULL; + +/* Used to generate random unique partition GUIDs for GPT. */ +static struct random_state random_state; + +static void +partitioning_load (void) +{ + init_regions (®ions); + parse_guid (DEFAULT_TYPE_GUID, type_guid); + xsrandom (time (NULL), &random_state); +} + +static void +partitioning_unload (void) +{ + size_t i; + + for (i = 0; i < nr_files; ++i) + close (files[i].fd); + free (files); + + /* We don't need to free regions.regions[].u.data because it points + * to primary, secondary or ebr which we free here. + */ + free_regions (®ions); + + free (primary); + free (secondary); + if (ebr) { + for (i = 0; i < nr_files-3; ++i) + free (ebr[i]); + free (ebr); + } +} + +static int +partitioning_config (const char *key, const char *value) +{ + struct file *p; + struct file file; + size_t i; + int err; + + if (strcmp (key, "file") == 0) { + file.filename = value; + file.alignment = alignment; + file.mbr_id = mbr_id; + memcpy (file.type_guid, type_guid, sizeof type_guid); + + file.fd = open (file.filename, O_RDWR); + if (file.fd == -1) { + nbdkit_error ("%s: %m", file.filename); + return -1; + } + if (fstat (file.fd, &file.statbuf) == -1) { + err = errno; + close (file.fd); + errno = err; + nbdkit_error ("%s: stat: %m", file.filename); + return -1; + } + + if (file.statbuf.st_size == 0) { + nbdkit_error ("%s: zero length partitions are not allowed", + file.filename); + return -1; + } + + /* Create a random GUID used as "Unique partition GUID". However + * this doesn't follow GUID conventions so in theory could make an + * invalid value. This is only used by GPT, and we store it in + * the file structure because it must be the same across primary + * and secondary PT entries. + */ + for (i = 0; i < 16; ++i) + file.guid[i] = xrandom (&random_state) & 0xff; + + p = realloc (files, (nr_files+1) * sizeof (struct file)); + if (p == NULL) { + err = errno; + close (file.fd); + errno = err; + nbdkit_error ("realloc: %m"); + return -1; + } + files = p; + files[nr_files] = file; + nr_files++; + } + else if (strcmp (key, "partition-type") == 0) { + if (strcasecmp (value, "mbr") == 0 || strcasecmp (value, "dos") == 0) + parttype = PARTTYPE_MBR; + else if (strcasecmp (value, "gpt") == 0) + parttype = PARTTYPE_GPT; + else { + nbdkit_error ("unknown partition-type: %s", value); + return -1; + } + } + else if (strcmp (key, "alignment") == 0) { + int64_t r; + + r = nbdkit_parse_size (value); + if (r == -1) + return -1; + + if (!(r >= SECTOR_SIZE && r <= MAX_ALIGNMENT)) { + nbdkit_error ("partition alignment %" PRIi64 " should be " + ">= sector size %" PRIu64 " and " + "<= maximum alignment %" PRIu64, + r, SECTOR_SIZE, MAX_ALIGNMENT); + return -1; + } + if (!IS_ALIGNED (r, SECTOR_SIZE)) { + nbdkit_error ("partition alignment %" PRIi64 " should be " + "a multiple of sector size %" PRIu64, + r, SECTOR_SIZE); + return -1; + } + + alignment = r; + } + else if (strcmp (key, "mbr-id") == 0) { + if (sscanf (value, "%i", &mbr_id) != 1) { + nbdkit_error ("could not parse mbr-id: %s", value); + return -1; + } + } + else if (strcmp (key, "type-guid") == 0) { + if (parse_guid (value, type_guid) == -1) { + nbdkit_error ("could not validate GUID: %s", value); + return -1; + } + } + else { + nbdkit_error ("unknown parameter '%s'", key); + return -1; + } + + return 0; +} + +static int +partitioning_config_complete (void) +{ + size_t i; + uint64_t total_size; + bool needs_gpt; + + /* Not enough / too many files? */ + if (nr_files == 0) { + nbdkit_error ("at least one file= parameter must be supplied"); + return -1; + } + + total_size = 0; + for (i = 0; i < nr_files; ++i) + total_size += files[i].statbuf.st_size; + needs_gpt = total_size > MAX_MBR_DISK_SIZE; + + /* Choose default parttype if not set. */ + if (parttype == PARTTYPE_UNSET) { + if (needs_gpt || nr_files > 4) { + parttype = PARTTYPE_GPT; + nbdkit_debug ("picking partition type GPT"); + } + else { + parttype = PARTTYPE_MBR; + nbdkit_debug ("picking partition type MBR"); + } + } + else if (parttype == PARTTYPE_MBR && needs_gpt) { + nbdkit_error ("MBR partition table type supports " + "a maximum virtual disk size of about 2 TB, " + "but you requested %zu partition(s) " + "and a total size of %" PRIu64 " bytes (> %" PRIu64 "). " + "Try using: partition-type=gpt", + nr_files, total_size, (uint64_t) MAX_MBR_DISK_SIZE); + return -1; + } + + return create_virtual_disk_layout (); +} + +#define partitioning_config_help \ + "file= (required) File(s) containing partitions\n" \ + "partition-type=mbr|gpt Partition type" + +/* Create the per-connection handle. */ +static void * +partitioning_open (int readonly) +{ + return NBDKIT_HANDLE_NOT_NEEDED; +} + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + +/* Get the disk size. */ +static int64_t +partitioning_get_size (void *handle) +{ + return virtual_size (®ions); +} + +/* Serves the same data over multiple connections. */ +static int +partitioning_can_multi_conn (void *handle) +{ + return 1; +} + +/* Read data. */ +static int +partitioning_pread (void *handle, void *buf, uint32_t count, uint64_t offset) +{ + while (count > 0) { + const struct region *region = find_region (®ions, offset); + size_t i, len; + ssize_t r; + + /* Length to end of region. */ + len = region->end - offset + 1; + if (len > count) + len = count; + + switch (region->type) { + case region_file: + i = region->u.i; + assert (i < nr_files); + r = pread (files[i].fd, buf, len, offset - region->start); + if (r == -1) { + nbdkit_error ("pread: %s: %m", files[i].filename); + return -1; + } + if (r == 0) { + nbdkit_error ("pread: %s: unexpected end of file", files[i].filename); + return -1; + } + len = r; + break; + + case region_data: + memcpy (buf, ®ion->u.data[offset - region->start], len); + break; + + case region_zero: + memset (buf, 0, len); + break; + } + + count -= len; + buf += len; + offset += len; + } + + return 0; +} + +/* Write data. */ +static int +partitioning_pwrite (void *handle, + const void *buf, uint32_t count, uint64_t offset) +{ + while (count > 0) { + const struct region *region = find_region (®ions, offset); + size_t i, len; + ssize_t r; + + /* Length to end of region. */ + len = region->end - offset + 1; + if (len > count) + len = count; + + switch (region->type) { + case region_file: + i = region->u.i; + assert (i < nr_files); + r = pwrite (files[i].fd, buf, len, offset - region->start); + if (r == -1) { + nbdkit_error ("pwrite: %s: %m", files[i].filename); + return -1; + } + len = r; + break; + + case region_data: + /* You can only write same data as already present. */ + if (memcmp (®ion->u.data[offset - region->start], buf, len) != 0) { + nbdkit_error ("attempt to change partition table of virtual disk"); + errno = EIO; + return -1; + } + break; + + case region_zero: + /* You can only write zeros. */ + if (!is_zero (buf, len)) { + nbdkit_error ("write non-zeros to padding region"); + errno = EIO; + return -1; + } + break; + } + + count -= len; + buf += len; + offset += len; + } + + return 0; +} + +/* Flush. */ +static int +partitioning_flush (void *handle) +{ + size_t i; + + for (i = 0; i < nr_files; ++i) { + if (fdatasync (files[i].fd) == -1) { + nbdkit_error ("fdatasync: %m"); + return -1; + } + } + + return 0; +} + +static struct nbdkit_plugin plugin = { + .name = "partitioning", + .version = PACKAGE_VERSION, + .load = partitioning_load, + .unload = partitioning_unload, + .config = partitioning_config, + .config_complete = partitioning_config_complete, + .config_help = partitioning_config_help, + .magic_config_key = "file", + .open = partitioning_open, + .get_size = partitioning_get_size, + .can_multi_conn = partitioning_can_multi_conn, + .pread = partitioning_pread, + .pwrite = partitioning_pwrite, + .flush = partitioning_flush, + /* In this plugin, errno is preserved properly along error return + * paths from failed system calls. + */ + .errno_is_preserved = 1, +}; + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/plugins/partitioning/virtual-disk.c b/plugins/partitioning/virtual-disk.c new file mode 100644 index 0000000..bb97d00 --- /dev/null +++ b/plugins/partitioning/virtual-disk.c @@ -0,0 +1,203 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include + +#include + +#include "isaligned.h" + +#include "regions.h" +#include "virtual-disk.h" + +static int create_partition_table (void); + +/* Called once we have the list of filenames and have selected a + * partition type. This creates the virtual disk layout as a list of + * regions. + */ +int +create_virtual_disk_layout (void) +{ + size_t i; + + assert (nr_regions (®ions) == 0); + assert (nr_files > 0); + assert (primary == NULL); + assert (secondary == NULL); + + /* Allocate the virtual partition table. */ + if (parttype == PARTTYPE_MBR) { + primary = calloc (1, SECTOR_SIZE); + if (primary == NULL) { + nbdkit_error ("malloc: %m"); + return -1; + } + + if (nr_files > 4) { + /* The first 3 primary partitions will be real partitions, the + * 4th will be an extended partition, and so we need to store + * EBRs for nr_files-3 logical partitions. + */ + ebr = malloc (sizeof (unsigned char *) * (nr_files-3)); + if (ebr == NULL) { + nbdkit_error ("malloc: %m"); + return -1; + } + for (i = 0; i < nr_files-3; ++i) { + ebr[i] = calloc (1, SECTOR_SIZE); + if (ebr[i] == NULL) { + nbdkit_error ("malloc: %m"); + return -1; + } + } + } + } + else /* PARTTYPE_GPT */ { + /* Protective MBR + PT header + PTA = 2 + GPT_PTA_LBAs */ + primary = calloc (2+GPT_PTA_LBAs, SECTOR_SIZE); + if (primary == NULL) { + nbdkit_error ("malloc: %m"); + return -1; + } + /* Secondary PTA + PT secondary header = GPT_PTA_LBAs + 1 */ + secondary = calloc (GPT_PTA_LBAs+1, SECTOR_SIZE); + if (secondary == NULL) { + nbdkit_error ("malloc: %m"); + return -1; + } + } + + /* Virtual primary partition table region at the start of the disk. */ + if (parttype == PARTTYPE_MBR) { + if (append_region_len (®ions, "MBR", + SECTOR_SIZE, 0, 0, + region_data, primary) == -1) + return -1; + } + else /* PARTTYPE_GPT */ { + if (append_region_len (®ions, "GPT primary", + (2+GPT_PTA_LBAs) * SECTOR_SIZE, 0, 0, + region_data, primary) == -1) + return -1; + } + + /* The partitions. */ + for (i = 0; i < nr_files; ++i) { + uint64_t offset; + + offset = virtual_size (®ions); + /* Because we add padding after each partition, this invariant + * must always be true. + */ + assert (IS_ALIGNED (offset, SECTOR_SIZE)); + + /* Logical partitions are preceeded by an EBR. */ + if (parttype == PARTTYPE_MBR && nr_files > 4 && i >= 3) { + if (append_region_len (®ions, "EBR", + SECTOR_SIZE, 0, 0, + region_data, ebr[i-3]) == -1) + return -1; + } + + /* Create the partition region for this file. + * Make sure each partition is aligned for best performance. + * If the file size is not a multiple of SECTOR_SIZE then + * add a padding region at the end to round it up. + */ + if (append_region_len (®ions, files[i].filename, + files[i].statbuf.st_size, + files[i].alignment, SECTOR_SIZE, + region_file, i) == -1) + return -1; + } + + /* For GPT add the virtual secondary/backup partition table. */ + if (parttype == PARTTYPE_GPT) { + if (append_region_len (®ions, "GPT secondary", + (GPT_PTA_LBAs+1) * SECTOR_SIZE, 0, 0, + region_data, secondary) == -1) + return -1; + } + + if (partitioning_debug_regions) { + for (i = 0; i < nr_regions (®ions); ++i) { + const struct region *region = get_region (®ions, i); + + nbdkit_debug ("region[%zu]: %" PRIx64 "-%" PRIx64 " type=%s", + i, region->start, region->end, + region->type == region_file ? + files[region->u.i].filename : + region->type == region_data ? + "data" : "zero"); + } + } + + /* We must have created some regions. */ + assert (nr_regions (®ions) > 0); + + /* Check the final alignment of all the partitions is the same as + * what was requested. + */ + for (i = 0; i < nr_regions (®ions); ++i) { + const struct region *region = get_region (®ions, i); + + if (region->type == region_file) + assert (IS_ALIGNED (region->start, files[region->u.i].alignment)); + } + + return create_partition_table (); +} + +static int +create_partition_table (void) +{ + /* The caller has already created the disk layout and allocated + * space in memory for the partition table. + */ + assert (nr_regions (®ions) > 0); + assert (primary != NULL); + if (parttype == PARTTYPE_GPT) + assert (secondary != NULL); + + if (parttype == PARTTYPE_MBR) + create_mbr_layout (); + else /* parttype == PARTTYPE_GPT */ + create_gpt_layout (); + + return 0; +} diff --git a/plugins/partitioning/virtual-disk.h b/plugins/partitioning/virtual-disk.h new file mode 100644 index 0000000..512756d --- /dev/null +++ b/plugins/partitioning/virtual-disk.h @@ -0,0 +1,118 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_VIRTUAL_DISK_H +#define NBDKIT_VIRTUAL_DISK_H + +#include +#include +#include + +#include "rounding.h" + +#include "gpt.h" +#include "regions.h" + +#define SECTOR_SIZE UINT64_C(512) + +/* Maximum size of MBR disks. This is an approximation based on the + * known limit (2^32 sectors) and an estimate based on the amount of + * padding between partitions. + */ +#define MAX_MBR_DISK_SIZE (UINT32_MAX * SECTOR_SIZE - 5 * MAX_ALIGNMENT) + +/* For GPT, the number of entries in the partition table array (PTA), + * and the number of LBAs which the PTA occupies. The latter will be + * 32 if the number of files is <= GPT_MIN_PARTITIONS, which is the + * normal case. + */ +#define GPT_PTA_SIZE ROUND_UP (nr_files, GPT_MIN_PARTITIONS) +#define GPT_PTA_LBAs (GPT_PTA_SIZE * GPT_PT_ENTRY_SIZE / SECTOR_SIZE) + +/* Maximum possible and default alignment between partitions. */ +#define MAX_ALIGNMENT (2048 * SECTOR_SIZE) +#define DEFAULT_ALIGNMENT MAX_ALIGNMENT + +/* Default MBR partition ID and GPT partition type GUID. */ +#define DEFAULT_MBR_ID 0x83 +#define DEFAULT_TYPE_GUID "0FC63DAF-8483-4772-8E79-3D69D8477DE4" + +extern int partitioning_debug_regions; + +extern unsigned long alignment; +extern int mbr_id; +extern char type_guid[16]; + +#define PARTTYPE_UNSET 0 +#define PARTTYPE_MBR 1 +#define PARTTYPE_GPT 2 +extern int parttype; + +/* A file supplied on the command line. */ +struct file { + const char *filename; /* file= supplied on the command line */ + int fd; + struct stat statbuf; + char guid[16]; /* random GUID used for GPT */ + unsigned long alignment; /* alignment of this partition */ + int mbr_id; /* MBR ID of this partition */ + char type_guid[16]; /* partition type GUID of this partition */ +}; + +extern struct file *files; +extern size_t nr_files; + +extern struct regions regions; +extern unsigned char *primary, *secondary, **ebr; + +/* Main entry point called after files array has been populated. */ +extern int create_virtual_disk_layout (void); + +/* Parse a GPT GUID. Note that GPT GUIDs have peculiar + * characteristics which make them unlike general GUIDs. + */ +extern int parse_guid (const char *str, char *out) + __attribute__((__nonnull__ (1, 2))); + +/* Internal function for creating a single MBR PTE. The GPT code + * calls this for creating the protective MBR. + */ +extern void create_mbr_partition_table_entry (const struct region *, + bool bootable, int partition_id, + unsigned char *) + __attribute__((__nonnull__ (1, 4))); + +/* Create MBR or GPT layout. */ +extern void create_mbr_layout (void); +extern void create_gpt_layout (void); + +#endif /* NBDKIT_VIRTUAL_DISK_H */ diff --git a/plugins/pattern/Makefile.am b/plugins/pattern/Makefile.am new file mode 100644 index 0000000..d1680bf --- /dev/null +++ b/plugins/pattern/Makefile.am @@ -0,0 +1,61 @@ +# nbdkit +# Copyright (C) 2017-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-pattern-plugin.pod + +plugin_LTLIBRARIES = nbdkit-pattern-plugin.la + +nbdkit_pattern_plugin_la_SOURCES = \ + pattern.c \ + $(top_srcdir)/include/nbdkit-plugin.h + +nbdkit_pattern_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include +nbdkit_pattern_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_pattern_plugin_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms + +if HAVE_POD + +man_MANS = nbdkit-pattern-plugin.1 +CLEANFILES += $(man_MANS) + +nbdkit-pattern-plugin.1: nbdkit-pattern-plugin.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/plugins/pattern/Makefile.in b/plugins/pattern/Makefile.in new file mode 100644 index 0000000..afdbc8e --- /dev/null +++ b/plugins/pattern/Makefile.in @@ -0,0 +1,883 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2017-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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+ + +@HAVE_POD_TRUE@nbdkit-pattern-plugin.1: nbdkit-pattern-plugin.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/plugins/pattern/nbdkit-pattern-plugin.pod b/plugins/pattern/nbdkit-pattern-plugin.pod new file mode 100644 index 0000000..e337476 --- /dev/null +++ b/plugins/pattern/nbdkit-pattern-plugin.pod @@ -0,0 +1,74 @@ +=head1 NAME + +nbdkit-pattern-plugin - plugin to serve a fixed pattern of data for testing + +=head1 SYNOPSIS + + nbdkit pattern size=SIZE + +=head1 DESCRIPTION + +C is a plugin for L which serves a +fixed pattern of data, read only. This is used for testing nbdkit +filters and NBD clients. + +The fixed pattern is the offset, as a 64 bit big endian integer, every +8 bytes. In hexadecimal this looks like: + + offset data + 0000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08 + 0010: 00 00 00 00 00 00 00 10 00 00 00 00 00 00 00 18 + 0020: 00 00 00 00 00 00 00 20 00 00 00 00 00 00 00 28 + ↗ └──────────┬──────────┘ + byte at offset 0x28 │ + │ + 64 bit big endian int + encoding offset 0x28 + +The size of the virtual disk must be specified using the C +parameter. If the size is not a multiple of 8 then the last 8 byte +offset in the pattern is truncated. + +=head2 Largest possible size + +nbdkit itself limits plugins to S<2⁶³-1> bytes +(S, +S). + +To test if NBD clients are free of bugs (not to mention nbdkit itself) +you can use: + + nbdkit pattern size=9223372036854775807 + +Note this is too large for qemu to open. + +=head1 PARAMETERS + +=over 4 + +=item BSIZE + +Specify the virtual size of the disk image. + +This parameter is required. + +=back + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/plugins/pattern/pattern.c b/plugins/pattern/pattern.c new file mode 100644 index 0000000..8937168 --- /dev/null +++ b/plugins/pattern/pattern.c @@ -0,0 +1,135 @@ +/* nbdkit + * Copyright (C) 2017-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include + +#define NBDKIT_API_VERSION 2 +#include + +#include "byte-swapping.h" +#include "minmax.h" + +/* The size of disk in bytes (initialized by size= parameter). */ +static int64_t size = 0; + +static int +pattern_config (const char *key, const char *value) +{ + int64_t r; + + if (strcmp (key, "size") == 0) { + r = nbdkit_parse_size (value); + if (r == -1) + return -1; + size = r; + } + else { + nbdkit_error ("unknown parameter '%s'", key); + return -1; + } + + return 0; +} + +#define pattern_config_help \ + "size= (required) Size of the backing disk" + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + +/* Create the per-connection handle. */ +static void * +pattern_open (int readonly) +{ + return NBDKIT_HANDLE_NOT_NEEDED; +} + +/* Get the disk size. */ +static int64_t +pattern_get_size (void *handle) +{ + return size; +} + +/* Serves the same data over multiple connections. */ +static int +pattern_can_multi_conn (void *handle) +{ + return 1; +} + +/* Read data. */ +static int +pattern_pread (void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags) +{ + char *b = buf; + uint64_t d; + uint64_t o; + uint32_t n; + + while (count > 0) { + d = htobe64 (offset & ~7); + o = offset & 7; + n = MIN (count, 8-o); + memcpy (b, (char *)&d + o, n); + b += 8-o; + offset += 8-o; + count -= n; + } + + return 0; +} + +static struct nbdkit_plugin plugin = { + .name = "pattern", + .version = PACKAGE_VERSION, + .config = pattern_config, + .config_help = pattern_config_help, + .open = pattern_open, + .get_size = pattern_get_size, + .can_multi_conn = pattern_can_multi_conn, + .pread = pattern_pread, + /* In this plugin, errno is preserved properly along error return + * paths from failed system calls. + */ + .errno_is_preserved = 1, +}; + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/plugins/perl/Makefile.am b/plugins/perl/Makefile.am new file mode 100644 index 0000000..b4a16ae --- /dev/null +++ b/plugins/perl/Makefile.am @@ -0,0 +1,69 @@ +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = \ + nbdkit-perl-plugin.pod \ + example.pl + +if HAVE_PERL + +plugin_LTLIBRARIES = nbdkit-perl-plugin.la + +nbdkit_perl_plugin_la_SOURCES = \ + perl.c \ + $(top_srcdir)/include/nbdkit-plugin.h + +nbdkit_perl_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/include +nbdkit_perl_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) \ + $(PERL_CFLAGS) \ + -I$(PERL_ARCHLIB)/CORE +nbdkit_perl_plugin_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms \ + $(PERL_LDOPTS) + +if HAVE_POD + +man_MANS = nbdkit-perl-plugin.3 +CLEANFILES += $(man_MANS) + +nbdkit-perl-plugin.3: nbdkit-perl-plugin.pod + $(PODWRAPPER) --section=3 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD + +endif diff --git a/plugins/perl/Makefile.in b/plugins/perl/Makefile.in new file mode 100644 index 0000000..4d2bf17 --- /dev/null +++ b/plugins/perl/Makefile.in @@ -0,0 +1,889 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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+# +# nbdkit -f -v perl ./plugins/perl/example.pl test1=foo test2=bar +# +# The -f -v arguments are optional. They cause the server to stay in +# the foreground and print debugging, which is useful when testing. +# +# You can connect to the server using guestfish or qemu, eg: +# +# guestfish --format=raw -a nbd://localhost +# > run +# > part-disk /dev/sda mbr +# > mkfs ext2 /dev/sda1 +# > list-filesystems +# > mount /dev/sda1 / +# > [etc] + +# This is the string used to store the emulated disk (initially all +# zero bytes). There is one disk per nbdkit instance, so if you +# reconnect to the same server you should see the same disk. You +# could also put this into the handle, so there would be a fresh disk +# per handle. +my $disk = "\0" x (1024*1024); + +# This just prints the extra command line parameters, but real plugins +# should parse them and reject any unknown parameters. +sub config +{ + my $key = shift; + my $value = shift; + + print "$0: ignored parameter $key=$value\n"; +} + +sub open +{ + my $readonly = shift; + + printf ("$0: open: readonly=%d\n", $readonly); + + # You can return any Perl value from open, and the same Perl value + # will be passed as the first arg to the other callbacks [in the + # client connected phase]. In most cases it's convenient to use a + # hashref. + my $h = { readonly => $readonly }; + + return $h; +} + +sub get_size +{ + my $h = shift; + + return length ($disk); +} + +sub pread +{ + my $h = shift; + my $count = shift; + my $offset = shift; + + return substr ($disk, $offset, $count); +} + +sub pwrite +{ + my $h = shift; + my $buf = shift; + my $count = length ($buf); + my $offset = shift; + + substr ($disk, $offset, $count) = $buf; +} + +sub zero +{ + my $h = shift; + my $count = shift; + my $offset = shift; + my $may_trim = shift; + + if ($may_trim) { + substr ($disk, $offset, $count) = "\0" x $count; + } else { + Nbdkit::set_error(POSIX::EOPNOTSUPP); + die "fall back to pwrite"; + } +} diff --git a/plugins/perl/nbdkit-perl-plugin.pod b/plugins/perl/nbdkit-perl-plugin.pod new file mode 100644 index 0000000..9165795 --- /dev/null +++ b/plugins/perl/nbdkit-perl-plugin.pod @@ -0,0 +1,368 @@ +=head1 NAME + +nbdkit-perl-plugin - nbdkit perl plugin + +=head1 SYNOPSIS + + nbdkit perl /path/to/plugin.pl [arguments...] + +=head1 DESCRIPTION + +C is an embedded Perl interpreter for +L, allowing you to write nbdkit plugins in Perl. + +=head2 If you have been given an nbdkit Perl plugin + +Assuming you have a Perl script which is an nbdkit plugin, you run it +like this: + + nbdkit perl /path/to/plugin.pl + +You may have to add further C arguments to the command +line. Read the Perl script to see if it requires any. + +=head1 WRITING A PERL NBDKIT PLUGIN + +For an example plugin written in Perl, see: +L + +Broadly speaking, Perl nbdkit plugins work like C ones, so you should +read L first. + +To write a Perl nbdkit plugin, you create a Perl file which contains +at least the following required subroutines: + + sub open + { + # see below + } + sub get_size + { + # see below + } + sub pread + { + # see below + } + +Note that the subroutines must have those literal names (like +C), because the C part looks up and calls those functions +directly. You may want to include documentation and globals (eg. for +storing global state). Also any top-level statements, C +statements, C statements and so on are run when nbdkit starts up +and shuts down, just like ordinary Perl. + +=head2 Executable script + +If you want you can make the script executable and include a "shebang" +at the top: + + #!/usr/sbin/nbdkit perl + +See also L. + +These scripts can also be installed in the C<$plugindir>. See +L. + +=head2 Methods + +Your script has access to the following methods in the C +package (in fact, attempting to C will fail, the methods +are already available): + + Nbdkit::set_error($err); + +Record C<$err> as the reason you are about to throw an exception. C<$err> +should correspond to usual errno values, where it may help to +C. + +=head2 Exceptions + +Instead of returning error codes as in C, Perl callbacks should +indicate problems by throwing Perl exceptions (ie. C, C +etc). The Perl error message is captured and printed by nbdkit. +Remember to use C if you need to control which +error is sent back to the client; if omitted, the client will see an +error of C. + +=head2 32 vs 64 bit + +It is likely that Perl plugins won't work well, or maybe won't work at +all, on 32 bit platforms. This is simply because Perl doesn't have an +easy way to use 64 bit integers on 32 bit platforms, and 64 bit +integers (eg. file offsets, disk sizes) are required for many nbdkit +operations. + +=head2 Perl callbacks + +This just documents the arguments to the callbacks in Perl, and any +way that they differ from the C callbacks. In all other respects they +work the same way as the C callbacks, so you should go and read +L. + +=over 4 + +=item C + +(Optional) + +There are no arguments or return value. + +=item C + +(Optional) + + sub config + { + my $key = shift; + my $value = shift; + # No return value. + } + +=item C + +(Optional) + +There are no arguments or return value. + +=item C + +(Required) + + sub open + { + my $readonly = shift; + my $handle = {}; + return $handle; + } + +The C flag is a boolean. + +You can return any Perl value as the handle. It is passed back to +subsequent calls. It's usually convenient to use a hashref, since +that lets you store arbitrary fields. + +=item C + +(Optional) + + sub close + { + my $handle = shift; + # No return value + } + +After C returns, the reference count of the handle is +decremented in the C part, which usually means that the handle and its +contents will be garbage collected. + +=item C + +(Required) + + sub get_size + { + my $handle = shift; + my $i64 = .. the size of the disk ..; + return $i64; + } + +This returns the size of the disk. You can return any Perl object +that evaluates to an integer. + +=item C + +(Optional) + + sub can_write + { + my $handle = shift; + my $bool = ...; + return $bool; + } + +Return a boolean indicating whether the disk is writable. + +=item C + +(Optional) + + sub can_flush + { + my $handle = shift; + my $bool = ...; + return $bool; + } + +Return a boolean indicating whether flush can be performed. + +=item C + +(Optional) + + sub is_rotational + { + my $handle = shift; + my $bool = ...; + return $bool; + } + +Return a boolean indicating whether the disk is rotational. + +=item C + +(Optional) + + sub can_trim + { + my $handle = shift; + my $bool = ...; + return $bool; + } + +Return a boolean indicating whether trim/discard can be performed. + +=item C + +(Required) + + sub pread + { + my $handle = shift; + my $count = shift; + my $offset = shift; + # Construct a buffer of length $count bytes and return it. + return $buf; + } + +The body of your C function should construct a buffer of length +(at least) C<$count> bytes. You should read C<$count> bytes from the +disk starting at C<$offset>. + +NBD only supports whole reads, so your function should try to read the +whole region (perhaps requiring a loop). If the read fails or is +partial, your function should C, optionally using +C first. + +=item C + +(Optional) + + sub pwrite + { + my $handle = shift; + my $buf = shift; + my $count = length ($buf); + my $offset = shift; + # No return value + } + +The body of your C function should write the C<$buf> string to +the disk. You should write C<$count> bytes to the disk starting at +C<$offset>. + +NBD only supports whole writes, so your function should try to write +the whole region (perhaps requiring a loop). If the write fails or is +partial, your function should C, optionally using +C first. + +=item C + +(Optional) + + sub flush + { + my $handle = shift; + # No return value + } + +The body of your C function should do a L or +L or equivalent on the backing store. + +If there is an error, the function should call C, optionally using +C first. + +=item C + +(Optional) + + sub trim + { + my $handle = shift; + my $count = shift; + my $offset = shift; + # No return value + } + +The body of your C function should "punch a hole" in the backing +store. + +If there is an error, the function should call C, optionally using +C first. + +=item C + +(Optional) + + sub zero + { + my $handle = shift; + my $count = shift; + my $offset = shift; + my $may_trim = shift; + # No return value + } + +The body of your C function should ensure that C<$count> bytes +of the disk, starting at C<$offset>, will read back as zero. If +C<$may_trim> is true, the operation may be optimized as a trim as long +as subsequent reads see zeroes. + +NBD only supports whole writes, so your function should try to write +the whole region (perhaps requiring a loop). If the write fails or is +partial, your function should C, optionally using +C first. In particular, if you would like to +automatically fall back to C (perhaps because there is nothing +to optimize if C<$may_trim> is false), use +C. + +=back + +=head2 Missing callbacks + +=over 4 + +=item Missing: C and C + +These are not needed because you can just use regular Perl C +and C constructs. + +=item Missing: C, C, C, C, +C + +These are not yet supported. + +=back + +=head2 Threads + +The thread model for Perl callbacks currently cannot be set from Perl. +It is hard-coded in the C part to +C. This may change or be +settable in future. + +=head1 SEE ALSO + +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2013-2018 Red Hat Inc. diff --git a/plugins/perl/perl.c b/plugins/perl/perl.c new file mode 100644 index 0000000..8c7ca50 --- /dev/null +++ b/plugins/perl/perl.c @@ -0,0 +1,620 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include + +static PerlInterpreter *my_perl; +static const char *script; + +static void +perl_load (void) +{ + int argc = 1; + const char *argv[2] = { "nbdkit", NULL }; + + /* Full Perl interpreter initialization is deferred until we read + * the first config parameter (which MUST be "script"). + */ + PERL_SYS_INIT3 (&argc, (char ***) &argv, &environ); + my_perl = perl_alloc (); + if (!my_perl) { + nbdkit_error ("out of memory allocating Perl interpreter"); + exit (EXIT_FAILURE); + } + perl_construct (my_perl); +} + +static void +perl_unload (void) +{ + if (my_perl != NULL) { + perl_destruct (my_perl); + perl_free (my_perl); + PERL_SYS_TERM (); + } +} + +/* We use this function to test if the named callback is defined + * in the loaded Perl code. + */ +static int +callback_defined (const char *perl_func_name) +{ + SV *ret; + char *cmd; + + if (asprintf (&cmd, "defined &%s", perl_func_name) == -1) { + perror ("asprintf"); + exit (EXIT_FAILURE); + } + + ret = eval_pv (cmd, FALSE); + free (cmd); + + return SvTRUE (ret); +} + +/* Check for a Perl exception, and convert it to an nbdkit error. */ +static int +check_perl_failure (void) +{ + SV *errsv = get_sv ("@", TRUE); + + if (SvTRUE (errsv)) { + const char *err; + STRLEN n; + char *err_copy; + + err = SvPV (errsv, n); + + /* Need to chop off the final \n if there is one. The only way to + * do this is to copy the string. + */ + err_copy = strndup (err, n); + if (err_copy == NULL) { + nbdkit_error ("malloc failure: original error: %s", err); + return -1; + } + if (n > 0 && err_copy[n-1] == '\n') + err_copy[n-1] = '\0'; + + nbdkit_error ("%s", err_copy); + free (err_copy); + + return -1; + } + + return 0; +} + +static int last_error; + +XS(set_error) +{ + dXSARGS; + /* Is it worth adding error checking for bad arguments? */ + if (items >= 1) { + last_error = SvIV (ST (0)); + nbdkit_set_error (last_error); + } + XSRETURN_EMPTY; +} + +EXTERN_C void boot_DynaLoader (pTHX_ CV *cv); + +static void +xs_init(pTHX) +{ + char *file = __FILE__; + newXS("DynaLoader::boot_DynaLoader", boot_DynaLoader, file); + newXS("Nbdkit::set_error", set_error, file); +} + +static void +perl_dump_plugin (void) +{ + dSP; + +#ifdef PERL_VERSION_STRING + printf ("perl_version=%s\n", PERL_VERSION_STRING); +#endif + + if (script && callback_defined ("dump_plugin")) { + ENTER; + SAVETMPS; + PUSHMARK (SP); + PUTBACK; + call_pv ("dump_plugin", G_EVAL|G_VOID|G_DISCARD); + SPAGAIN; + PUTBACK; + FREETMPS; + LEAVE; + } +} + +static int +perl_config (const char *key, const char *value) +{ + if (!script) { + int argc = 2; + char *argv[3] = { "nbdkit", NULL, NULL }; + + /* The first parameter MUST be "script". */ + if (strcmp (key, "script") != 0) { + nbdkit_error ("the first parameter must be " + "script=/path/to/perl/script.pl"); + return -1; + } + script = value; + + assert (my_perl); + + /* Load the Perl script. */ + argv[1] = (char *) script; + if (perl_parse (my_perl, xs_init, argc, argv, NULL) == -1) { + nbdkit_error ("%s: error parsing this script", script); + return -1; + } + + /* Run the Perl script. Note that top-level definitions such as + * global variables don't work at all unless you do this. + */ + if (perl_run (my_perl) == -1) { + nbdkit_error ("%s: error running this script", script); + return -1; + } + + /* Minimal set of callbacks which are required (by nbdkit itself). */ + if (!callback_defined ("open") || + !callback_defined ("get_size") || + !callback_defined ("pread")) { + nbdkit_error ("%s: one of the required callbacks " + "'open', 'get_size' or 'pread' " + "is not defined by this Perl script. " + "nbdkit requires these callbacks.", script); + return -1; + } + } + else if (callback_defined ("config")) { + dSP; + + /* Other parameters are passed to the Perl .config callback. */ + ENTER; + SAVETMPS; + PUSHMARK (SP); + XPUSHs (sv_2mortal (newSVpv (key, strlen (key)))); + XPUSHs (sv_2mortal (newSVpv (value, strlen (value)))); + PUTBACK; + call_pv ("config", G_EVAL|G_VOID|G_DISCARD); + SPAGAIN; + PUTBACK; + FREETMPS; + LEAVE; + + if (check_perl_failure () == -1) + return -1; + } + else { + /* Emulate what core nbdkit does if a config callback is NULL. */ + nbdkit_error ("%s: this plugin does not need command line configuration", + script); + return -1; + } + + return 0; +} + +static int +perl_config_complete (void) +{ + dSP; + + if (callback_defined ("config_complete")) { + ENTER; + SAVETMPS; + PUSHMARK (SP); + PUTBACK; + call_pv ("config_complete", G_EVAL|G_VOID|G_DISCARD); + SPAGAIN; + PUTBACK; + FREETMPS; + LEAVE; + if (check_perl_failure () == -1) + return -1; + } + + return 0; +} + +static void * +perl_open (int readonly) +{ + SV *sv; + dSP; + + /* We check in perl_config that this callback is defined. */ + ENTER; + SAVETMPS; + PUSHMARK (SP); + XPUSHs (readonly ? &PL_sv_yes : &PL_sv_no); + PUTBACK; + call_pv ("open", G_EVAL|G_SCALAR); + SPAGAIN; + sv = newSVsv (POPs); + PUTBACK; + FREETMPS; + LEAVE; + + if (check_perl_failure () == -1) + return NULL; + + nbdkit_debug ("open returns handle (SV *) = %p (type %d)", + sv, SvTYPE (sv)); + + return sv; +} + +static void +perl_close (void *handle) +{ + dSP; + + nbdkit_debug ("close called with handle (SV *) = %p (type %d)", + handle, SvTYPE ((SV *) handle)); + + if (callback_defined ("close")) { + ENTER; + SAVETMPS; + PUSHMARK (SP); + XPUSHs (handle); + PUTBACK; + call_pv ("close", G_EVAL|G_VOID|G_DISCARD); + SPAGAIN; + PUTBACK; + FREETMPS; + LEAVE; + + check_perl_failure (); /* ignore return value */ + } + + /* Since nbdkit has closed (and forgotten) the handle, we can now + * drop its refcount. + */ + SvREFCNT_dec ((SV *) handle); +} + +static int64_t +perl_get_size (void *handle) +{ + dSP; + SV *sv; + int64_t size; + + /* We check in perl_config that this callback is defined. */ + ENTER; + SAVETMPS; + PUSHMARK (SP); + XPUSHs (handle); + PUTBACK; + call_pv ("get_size", G_EVAL|G_SCALAR); + SPAGAIN; + /* For some reason, this only works if split into two separate statements: */ + sv = POPs; + size = SvIV (sv); + PUTBACK; + FREETMPS; + LEAVE; + + if (check_perl_failure () == -1) + return -1; + + nbdkit_debug ("get_size returned %" PRIi64, size); + + return size; +} + +static int +perl_boolean (void *handle, const char *callback_name, const char *fn_name) +{ + dSP; + SV *sv; + int r; + + if (callback_defined (callback_name)) { + /* If there's a Perl callback, call it. */ + ENTER; + SAVETMPS; + PUSHMARK (SP); + XPUSHs (handle); + PUTBACK; + call_pv (callback_name, G_EVAL|G_SCALAR); + SPAGAIN; + sv = POPs; + r = SvIV (sv); + PUTBACK; + FREETMPS; + LEAVE; + + if (check_perl_failure () == -1) + return -1; + + return r; + } + /* No Perl callback. If the function is defined, return 1. */ + else if (fn_name && callback_defined (fn_name)) + return 1; + else + return 0; +} + +static int +perl_can_write (void *handle) +{ + return perl_boolean (handle, "can_write", "write"); +} + +static int +perl_can_flush (void *handle) +{ + return perl_boolean (handle, "can_flush", "flush"); +} + +static int +perl_can_trim (void *handle) +{ + return perl_boolean (handle, "can_trim", "trim"); +} + +static int +perl_is_rotational (void *handle) +{ + return perl_boolean (handle, "is_rotational", NULL); +} + +static int +perl_pread (void *handle, void *buf, + uint32_t count, uint64_t offset) +{ + dSP; + SV *sv; + const char *pbuf; + STRLEN len; + int ret = 0; + + /* We check in perl_config that this callback is defined. */ + ENTER; + SAVETMPS; + PUSHMARK (SP); + XPUSHs (handle); + XPUSHs (sv_2mortal (newSViv (count))); + XPUSHs (sv_2mortal (newSViv (offset))); + PUTBACK; + call_pv ("pread", G_EVAL|G_SCALAR); + SPAGAIN; + sv = POPs; + pbuf = SvPV (sv, len); + if (len < count) { + nbdkit_error ("buffer returned from pread is too small"); + ret = -1; + } + else + memcpy (buf, pbuf, count); + PUTBACK; + FREETMPS; + LEAVE; + + if (check_perl_failure () == -1) + ret = -1; + + return ret; +} + +static int +perl_pwrite (void *handle, const void *buf, + uint32_t count, uint64_t offset) +{ + dSP; + + if (callback_defined ("pwrite")) { + ENTER; + SAVETMPS; + PUSHMARK (SP); + XPUSHs (handle); + XPUSHs (sv_2mortal (newSVpv (buf, count))); + XPUSHs (sv_2mortal (newSViv (offset))); + PUTBACK; + call_pv ("pwrite", G_EVAL|G_VOID|G_DISCARD); + SPAGAIN; + PUTBACK; + FREETMPS; + LEAVE; + + if (check_perl_failure () == -1) + return -1; + + return 0; + } + + nbdkit_error ("write not implemented"); + return -1; +} + +static int +perl_zero (void *handle, uint32_t count, uint64_t offset, int may_trim) +{ + dSP; + + if (callback_defined ("zero")) { + last_error = 0; + ENTER; + SAVETMPS; + PUSHMARK (SP); + XPUSHs (handle); + XPUSHs (sv_2mortal (newSViv (count))); + XPUSHs (sv_2mortal (newSViv (offset))); + XPUSHs (sv_2mortal (newSViv (may_trim))); + PUTBACK; + call_pv ("zero", G_EVAL|G_SCALAR); + SPAGAIN; + PUTBACK; + FREETMPS; + LEAVE; + + if (last_error == EOPNOTSUPP) { + /* When user requests this particular error, we want to + gracefully fall back, and to accomodate both a normal return + and an exception. */ + nbdkit_debug ("zero requested falling back to pwrite"); + return -1; + } + if (check_perl_failure () == -1) + return -1; + + return 0; + } + + nbdkit_debug ("zero falling back to pwrite"); + nbdkit_set_error (EOPNOTSUPP); + return -1; +} + +static int +perl_flush (void *handle) +{ + dSP; + + if (callback_defined ("flush")) { + ENTER; + SAVETMPS; + PUSHMARK (SP); + XPUSHs (handle); + PUTBACK; + call_pv ("flush", G_EVAL|G_VOID|G_DISCARD); + SPAGAIN; + PUTBACK; + FREETMPS; + LEAVE; + + if (check_perl_failure () == -1) + return -1; + + return 0; + } + + /* Ignore lack of flush callback in Perl, although probably nbdkit + * will never call this since .can_flush returns false. + */ + return 0; +} + +static int +perl_trim (void *handle, uint32_t count, uint64_t offset) +{ + dSP; + + if (callback_defined ("trim")) { + ENTER; + SAVETMPS; + PUSHMARK (SP); + XPUSHs (handle); + XPUSHs (sv_2mortal (newSViv (count))); + XPUSHs (sv_2mortal (newSViv (offset))); + PUTBACK; + call_pv ("trim", G_EVAL|G_VOID|G_DISCARD); + SPAGAIN; + PUTBACK; + FREETMPS; + LEAVE; + + if (check_perl_failure () == -1) + return -1; + + return 0; + } + + /* Ignore lack of trim callback in Perl, although probably nbdkit + * will never call this since .can_trim returns false. + */ + return 0; +} + +#define perl_config_help \ + "script= (required) The Perl plugin to run.\n" \ + "[other arguments may be used by the plugin that you load]" + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS + +static struct nbdkit_plugin plugin = { + .name = "perl", + .version = PACKAGE_VERSION, + + .load = perl_load, + .unload = perl_unload, + .dump_plugin = perl_dump_plugin, + + .config = perl_config, + .config_complete = perl_config_complete, + .config_help = perl_config_help, + + .open = perl_open, + .close = perl_close, + + .get_size = perl_get_size, + .can_write = perl_can_write, + .can_flush = perl_can_flush, + .is_rotational = perl_is_rotational, + .can_trim = perl_can_trim, + + .pread = perl_pread, + .pwrite = perl_pwrite, + .flush = perl_flush, + .trim = perl_trim, + .zero = perl_zero, +}; + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/plugins/plugins.syms b/plugins/plugins.syms new file mode 100644 index 0000000..edcc6c5 --- /dev/null +++ b/plugins/plugins.syms @@ -0,0 +1,46 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# This linker script controls the visibility of symbols in plugins. +# Plugins only need to export the "plugin_init" function and debug +# flags. +# +# Use of this linker script is entirely optional. It's just for +# hygiene. + +{ + global: + plugin_init; + *_debug_*; + + # Everything else is hidden. + local: *; +}; diff --git a/plugins/python/Makefile.am b/plugins/python/Makefile.am new file mode 100644 index 0000000..3229fa2 --- /dev/null +++ b/plugins/python/Makefile.am @@ -0,0 +1,70 @@ +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = \ + nbdkit-python-plugin.pod \ + example.py + +if HAVE_PYTHON + +plugin_LTLIBRARIES = nbdkit-python-plugin.la + +nbdkit_python_plugin_la_SOURCES = \ + python.c \ + $(top_srcdir)/include/nbdkit-plugin.h + +nbdkit_python_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/include +nbdkit_python_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) \ + $(PYTHON_CFLAGS) +nbdkit_python_plugin_la_LIBADD = \ + $(PYTHON_LIBS) +nbdkit_python_plugin_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms \ + $(PYTHON_LDFLAGS) + +if HAVE_POD + +man_MANS = nbdkit-python-plugin.3 +CLEANFILES += $(man_MANS) + +nbdkit-python-plugin.3: nbdkit-python-plugin.pod + $(PODWRAPPER) --section=3 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD + +endif diff --git a/plugins/python/Makefile.in b/plugins/python/Makefile.in new file mode 100644 index 0000000..e48646b --- /dev/null +++ b/plugins/python/Makefile.in @@ -0,0 +1,895 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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+# +# ./nbdkit -f -v python ./plugins/python/example.py test1=foo test2=bar +# +# Or run it after installing nbdkit like this: +# +# nbdkit -f -v python ./plugins/python/example.py test1=foo test2=bar +# +# The -f -v arguments are optional. They cause the server to stay in +# the foreground and print debugging, which is useful when testing. +# +# You can connect to the server using guestfish or qemu, eg: +# +# guestfish --format=raw -a nbd://localhost +# > run +# > part-disk /dev/sda mbr +# > mkfs ext2 /dev/sda1 +# > list-filesystems +# > mount /dev/sda1 / +# > [etc] + +import nbdkit +import errno + +# This is the string used to store the emulated disk (initially all +# zero bytes). There is one disk per nbdkit instance, so if you +# reconnect to the same server you should see the same disk. You +# could also put this into the handle, so there would be a fresh disk +# per handle. +disk = bytearray(1024 * 1024) + + +# This just prints the extra command line parameters, but real plugins +# should parse them and reject any unknown parameters. +def config(key, value): + print("ignored parameter %s=%s" % (key, value)) + + +def open(readonly): + print("open: readonly=%d" % readonly) + + # You can return any non-NULL Python object from open, and the + # same object will be passed as the first arg to the other + # callbacks [in the client connected phase]. + return 1 + + +def get_size(h): + global disk + return len(disk) + + +def pread(h, count, offset): + global disk + return disk[offset:offset+count] + + +def pwrite(h, buf, offset): + global disk + end = offset + len(buf) + disk[offset:end] = buf + + +def zero(h, count, offset, may_trim): + global disk + if may_trim: + disk[offset:offset+count] = bytearray(count) + else: + nbdkit.set_error(errno.EOPNOTSUPP) + raise Exception diff --git a/plugins/python/nbdkit-python-plugin.pod b/plugins/python/nbdkit-python-plugin.pod new file mode 100644 index 0000000..b422796 --- /dev/null +++ b/plugins/python/nbdkit-python-plugin.pod @@ -0,0 +1,295 @@ +=head1 NAME + +nbdkit-python-plugin - nbdkit python plugin + +=head1 SYNOPSIS + + nbdkit python /path/to/plugin.py [arguments...] + +=head1 DESCRIPTION + +C is an embedded Python interpreter for +L, allowing you to write nbdkit plugins in Python. + +=head2 If you have been given an nbdkit Python plugin + +Assuming you have a Python script which is an nbdkit plugin, you run it +like this: + + nbdkit python /path/to/plugin.py + +You may have to add further C arguments to the command +line. Read the Python script to see if it requires any. + +=head1 WRITING A PYTHON NBDKIT PLUGIN + +For an example plugin written in Python, see: +L + +Broadly speaking, Python nbdkit plugins work like C ones, so you should +read L first. + +To write a Python nbdkit plugin, you create a Python file which +contains at least the following required functions (in the top level +C<__main__> module): + + def open(readonly): + # see below + def get_size(h): + # see below + def pread(h, count, offset): + # see below + +Note that the subroutines must have those literal names (like C), +because the C part looks up and calls those functions directly. You +may want to include documentation and globals (eg. for storing global +state). Any other top level statements are run when the script is +loaded, just like ordinary Python. + +=head2 Python 2 and Python 3 + +The Python plugin has to be compiled for either Python 2 or Python 3 +when building nbdkit. You can set the C environment variable +to the desired interpreter, otherwise nbdkit will use the interpreter +called C on the current C<$PATH>. For example: + + PYTHON=/usr/bin/python3 ./configure + +To find out which version the Python plugin was compiled for, use the +I<--dump-plugin> option, eg: + + $ nbdkit python --dump-plugin + ... + python_version=3.7.0 + python_pep_384_abi_version=3 + +=head2 Executable script + +If you want you can make the script executable and include a "shebang" +at the top: + + #!/usr/sbin/nbdkit python + +See also L. + +These scripts can also be installed in the C<$plugindir>. See +L. + +=head2 Methods + +Your script may use C to have access to the following +methods in the C module: + + nbdkit.set_error(err) + +Record C as the reason you are about to throw an exception. C +should correspond to usual errno values, where it may help to +C. + +=head2 Exceptions + +Python callbacks should throw exceptions to indicate errors. Remember +to use C if you need to control which error is sent +back to the client; if omitted, the client will see an error of C. + +=head2 Python callbacks + +This just documents the arguments to the callbacks in Python, and any +way that they differ from the C callbacks. In all other respects they +work the same way as the C callbacks, so you should go and read +nbdkit-plugin(3). + +=over 4 + +=item C + +(Optional) + +There are no arguments or return value. + +=item C + +(Optional) + + def config(key, value): + # no return value + +=item C + +(Optional) + +There are no arguments or return value. + +=item C + +(Required) + + def open(readonly): + # return handle + +You can return any non-NULL Python value as the handle. It is passed +back in subsequent calls. + +=item C + +(Optional) + + def close(h): + # no return value + +After C returns, the reference count of the handle is +decremented in the C part, which usually means that the handle and its +contents will be garbage collected. + +=item C + +(Required) + + def get_size(h): + # return the size of the disk + +=item C + +(Optional) + + def can_write(h): + # return a boolean + +=item C + +(Optional) + + def can_flush(h): + # return a boolean + +=item C + +(Optional) + + def is_rotational(h): + # return a boolean + +=item C + +(Optional) + + def can_trim(h): + # return a boolean + +=item C + +(Required) + + def pread(h, count, offset): + # construct a bytearray of length count bytes and return it + +The body of your C function should construct a buffer of length +(at least) C bytes. You should read C bytes from the +disk starting at C. + +NBD only supports whole reads, so your function should try to read +the whole region (perhaps requiring a loop). If the read fails or +is partial, your function should throw an exception, optionally using +C first. + +=item C + +(Optional) + + def pwrite(h, buf, offset): + length = len (buf) + # no return value + +The body of your C function should write the C string to +the disk. You should write C bytes to the disk starting at +C. + +NBD only supports whole writes, so your function should try to +write the whole region (perhaps requiring a loop). If the write +fails or is partial, your function should throw an exception, + optionally using C first. + +=item C + +(Optional) + + def flush(h): + # no return value + +The body of your C function should do a L or +L or equivalent on the backing store. + +If the flush fails, your function should throw an exception, optionally +using C first. + +=item C + +(Optional) + + def trim(h, count, offset): + # no return value + +The body of your C function should "punch a hole" in the +backing store. If the trim fails, your function should throw an +exception, optionally using C first. + +=item C + +(Optional) + + def zero(h, count, offset, may_trim): + # no return value + +The body of your C function should ensure that C bytes +of the disk, starting at C, will read back as zero. If +C is true, the operation may be optimized as a trim as long +as subsequent reads see zeroes. + +NBD only supports whole writes, so your function should try to +write the whole region (perhaps requiring a loop). If the write +fails or is partial, your function should throw an exception, +optionally using C first. In particular, if +you would like to automatically fall back to C (perhaps +because there is nothing to optimize if C is false), +use C. + +=back + +=head2 Missing callbacks + +=over 4 + +=item Missing: C and C + +These are not needed because you can just use ordinary Python +constructs. + +=item Missing: C, C, C, C, +C + +These are not yet supported. + +=back + +=head2 Threads + +The thread model for Python callbacks currently cannot be set from +Python. It is hard-coded in the C part to +C. This may change or be +settable in future. + +=head1 SEE ALSO + +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2013-2018 Red Hat Inc. diff --git a/plugins/python/python.c b/plugins/python/python.c new file mode 100644 index 0000000..2caf2e3 --- /dev/null +++ b/plugins/python/python.c @@ -0,0 +1,753 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* This has to be included first, else definitions conflict with + * glibc header files. Python is broken. + */ +#define PY_SSIZE_T_CLEAN 1 +#include + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +/* XXX Apparently global state is technically wrong in Python 3, see: + * + * https://www.python.org/dev/peps/pep-3121/ + * + * However it probably doesn't matter for nbdkit since we don't ever + * have multiple Python interpreters or multiple instances of the + * plugin in a single process. + */ +static const char *script; +static PyObject *module; + +static int last_error; + +static PyObject * +set_error (PyObject *self, PyObject *args) +{ + int err; + + if (!PyArg_ParseTuple (args, "i", &err)) + return NULL; + nbdkit_set_error (err); + last_error = err; + Py_RETURN_NONE; +} + +static PyMethodDef NbdkitMethods[] = { + { "set_error", set_error, METH_VARARGS, + "Store an errno value prior to throwing an exception" }, + { NULL } +}; + +/* Is a callback defined? */ +static int +callback_defined (const char *name, PyObject **obj_rtn) +{ + PyObject *obj; + + assert (script != NULL); + assert (module != NULL); + + obj = PyObject_GetAttrString (module, name); + if (!obj) { + PyErr_Clear (); /* Clear the AttributeError from testing attr. */ + return 0; + } + if (!PyCallable_Check (obj)) { + nbdkit_debug ("object %s isn't callable", name); + Py_DECREF (obj); + return 0; + } + + if (obj_rtn != NULL) + *obj_rtn = obj; + else + Py_DECREF (obj); + + return 1; +} + +/* Convert bytes/str/unicode into a string. Caller must free. */ +static char * +python_to_string (PyObject *str) +{ + if (str) { +#ifdef HAVE_PYUNICODE_ASUTF8 + if (PyUnicode_Check (str)) + return strdup (PyUnicode_AsUTF8 (str)); + else +#endif +#ifdef HAVE_PYSTRING_ASSTRING + if (PyString_Check (str)) + return strdup (PyString_AsString (str)); + else +#endif + if (PyBytes_Check (str)) + return strdup (PyBytes_AS_STRING (str)); + } + return NULL; +} + +/* This is the fallback in case we cannot get the full traceback. */ +static void +print_python_error (const char *callback, PyObject *error) +{ + PyObject *error_str; + char *error_cstr = NULL; + + error_str = PyObject_Str (error); + error_cstr = python_to_string (error_str); + nbdkit_error ("%s: %s: error: %s", + script, callback, + error_cstr ? error_cstr : ""); + Py_DECREF (error_str); + free (error_cstr); +} + +/* Convert the Python traceback to a string and call nbdkit_error. + * https://stackoverflow.com/a/15907460/7126113 + */ +static int +print_python_traceback (const char *callback, + PyObject *type, PyObject *error, PyObject *traceback) +{ + PyObject *module_name, *traceback_module, *format_exception_fn, *rv, + *traceback_str; + char *traceback_cstr; + +#ifdef HAVE_PYSTRING_FROMSTRING + module_name = PyString_FromString ("traceback"); +#else + module_name = PyUnicode_FromString ("traceback"); +#endif + traceback_module = PyImport_Import (module_name); + Py_DECREF (module_name); + + /* couldn't 'import traceback' */ + if (traceback_module == NULL) + return -1; + + format_exception_fn = PyObject_GetAttrString (traceback_module, + "format_exception"); + if (format_exception_fn == NULL) + return -1; + if (!PyCallable_Check (format_exception_fn)) + return -1; + + rv = PyObject_CallFunctionObjArgs (format_exception_fn, + type, error, traceback, NULL); + traceback_str = PyObject_Str (rv); + Py_DECREF (rv); + traceback_cstr = python_to_string (traceback_str); + if (traceback_cstr == NULL) { + Py_DECREF (traceback_str); + return -1; + } + + nbdkit_error ("%s: %s: error: %s", + script, callback, + traceback_cstr); + Py_DECREF (traceback_str); + free (traceback_cstr); + + /* This means we succeeded in calling nbdkit_error. */ + return 0; +} + +static int +check_python_failure (const char *callback) +{ + if (PyErr_Occurred ()) { + PyObject *type, *error, *traceback; + + PyErr_Fetch (&type, &error, &traceback); + PyErr_NormalizeException (&type, &error, &traceback); + + /* Try to print the full traceback. */ + if (print_python_traceback (callback, type, error, traceback) == -1) { + /* Couldn't do that, so fall back to converting the Python error + * to a string. + */ + print_python_error (callback, error); + } + + /* In all cases this returns -1 to indicate that a Python error + * occurred. + */ + return -1; + } + return 0; +} + +#if PY_MAJOR_VERSION >= 3 +static struct PyModuleDef moduledef = { + PyModuleDef_HEAD_INIT, + "nbdkit", + "Module used to access nbdkit server API", + -1, + NbdkitMethods, + NULL, + NULL, + NULL, + NULL +}; +#endif + +static PyMODINIT_FUNC +create_nbdkit_module (void) +{ + PyObject *m; + +#if PY_MAJOR_VERSION >= 3 + m = PyModule_Create (&moduledef); +#else + m = Py_InitModule ("nbdkit", NbdkitMethods); +#endif + if (m == NULL) { + nbdkit_error ("could not create the nbdkit API module"); + exit (EXIT_FAILURE); + } +#if PY_MAJOR_VERSION >= 3 + return m; +#endif +} + +static void +py_load (void) +{ + PyImport_AppendInittab ("nbdkit", create_nbdkit_module); + Py_Initialize (); +} + +static void +py_unload (void) +{ + Py_XDECREF (module); + + Py_Finalize (); +} + +static void +py_dump_plugin (void) +{ + PyObject *fn; + PyObject *r; + +#ifdef PY_VERSION + printf ("python_version=%s\n", PY_VERSION); +#endif + +#ifdef PYTHON_ABI_VERSION + printf ("python_pep_384_abi_version=%d\n", PYTHON_ABI_VERSION); +#endif + + if (script && callback_defined ("dump_plugin", &fn)) { + PyErr_Clear (); + + r = PyObject_CallObject (fn, NULL); + Py_DECREF (fn); + Py_DECREF (r); + } +} + +static int +py_config (const char *key, const char *value) +{ + FILE *fp; + PyObject *modname; + PyObject *fn; + PyObject *r; + + if (!script) { + /* The first parameter MUST be "script". */ + if (strcmp (key, "script") != 0) { + nbdkit_error ("the first parameter must be " + "script=/path/to/python/script.py"); + return -1; + } + script = value; + + /* Load the Python script. */ + fp = fopen (script, "r"); + if (!fp) { + nbdkit_error ("%s: cannot open file: %m", script); + return -1; + } + + if (PyRun_SimpleFileEx (fp, script, 1) == -1) { + nbdkit_error ("%s: error running this script", script); + return -1; + } + /* Note that because closeit flag == 1, fp is now closed. */ + + /* The script should define a module called __main__. */ +#ifdef HAVE_PYSTRING_FROMSTRING + modname = PyString_FromString ("__main__"); +#else + modname = PyUnicode_FromString ("__main__"); +#endif + module = PyImport_Import (modname); + Py_DECREF (modname); + if (!module) { + nbdkit_error ("%s: cannot find __main__ module", script); + return -1; + } + + /* Minimal set of callbacks which are required (by nbdkit itself). */ + if (!callback_defined ("open", NULL) || + !callback_defined ("get_size", NULL) || + !callback_defined ("pread", NULL)) { + nbdkit_error ("%s: one of the required callbacks " + "'open', 'get_size' or 'pread' " + "is not defined by this Python script. " + "nbdkit requires these callbacks.", script); + return -1; + } + } + else if (callback_defined ("config", &fn)) { + /* Other parameters are passed to the Python .config callback. */ + PyErr_Clear (); + + r = PyObject_CallFunction (fn, "ss", key, value); + Py_DECREF (fn); + if (check_python_failure ("config") == -1) + return -1; + Py_DECREF (r); + } + else { + /* Emulate what core nbdkit does if a config callback is NULL. */ + nbdkit_error ("%s: this plugin does not need command line configuration", + script); + return -1; + } + + return 0; +} + +static int +py_config_complete (void) +{ + PyObject *fn; + PyObject *r; + + if (callback_defined ("config_complete", &fn)) { + PyErr_Clear (); + + r = PyObject_CallObject (fn, NULL); + Py_DECREF (fn); + if (check_python_failure ("config_complete") == -1) + return -1; + Py_DECREF (r); + } + + return 0; +} + +static void * +py_open (int readonly) +{ + PyObject *fn; + PyObject *handle; + + if (!callback_defined ("open", &fn)) { + nbdkit_error ("%s: missing callback: %s", script, "open"); + return NULL; + } + + PyErr_Clear (); + + handle = PyObject_CallFunctionObjArgs (fn, readonly ? Py_True : Py_False, + NULL); + Py_DECREF (fn); + if (check_python_failure ("open") == -1) + return NULL; + + return handle; +} + +static void +py_close (void *handle) +{ + PyObject *obj = handle; + PyObject *fn; + PyObject *r; + + if (callback_defined ("close", &fn)) { + PyErr_Clear (); + + r = PyObject_CallFunctionObjArgs (fn, obj, NULL); + Py_DECREF (fn); + check_python_failure ("close"); + Py_XDECREF (r); + } + + Py_DECREF (obj); +} + +static int64_t +py_get_size (void *handle) +{ + PyObject *obj = handle; + PyObject *fn; + PyObject *r; + int64_t ret; + + if (!callback_defined ("get_size", &fn)) { + nbdkit_error ("%s: missing callback: %s", script, "get_size"); + return -1; + } + + PyErr_Clear (); + + r = PyObject_CallFunctionObjArgs (fn, obj, NULL); + Py_DECREF (fn); + if (check_python_failure ("get_size") == -1) + return -1; + + ret = PyLong_AsLongLong (r); + Py_DECREF (r); + if (check_python_failure ("PyLong_AsLongLong") == -1) + return -1; + + return ret; +} + +static int +py_pread (void *handle, void *buf, + uint32_t count, uint64_t offset) +{ + PyObject *obj = handle; + PyObject *fn; + PyObject *r; + + if (!callback_defined ("pread", &fn)) { + nbdkit_error ("%s: missing callback: %s", script, "pread"); + return -1; + } + + PyErr_Clear (); + + r = PyObject_CallFunction (fn, "OiL", obj, count, offset, NULL); + Py_DECREF (fn); + if (check_python_failure ("pread") == -1) + return -1; + + if (!PyByteArray_Check (r)) { + nbdkit_error ("%s: value returned from pread method is not a byte array", + script); + Py_DECREF (r); + return -1; + } + + if (PyByteArray_Size (r) < count) { + nbdkit_error ("%s: byte array returned from pread is too small", script); + Py_DECREF (r); + return -1; + } + + memcpy (buf, PyByteArray_AsString (r), count); + Py_DECREF (r); + + return 0; +} + +static int +py_pwrite (void *handle, const void *buf, + uint32_t count, uint64_t offset) +{ + PyObject *obj = handle; + PyObject *fn; + PyObject *r; + + if (callback_defined ("pwrite", &fn)) { + PyErr_Clear (); + + r = PyObject_CallFunction (fn, "ONL", obj, + PyByteArray_FromStringAndSize (buf, count), + offset, NULL); + Py_DECREF (fn); + if (check_python_failure ("pwrite") == -1) + return -1; + Py_DECREF (r); + } + else { + nbdkit_error ("%s not implemented", "pwrite"); + return -1; + } + + return 0; +} + +static int +py_flush (void *handle) +{ + PyObject *obj = handle; + PyObject *fn; + PyObject *r; + + if (callback_defined ("flush", &fn)) { + PyErr_Clear (); + + r = PyObject_CallFunctionObjArgs (fn, obj, NULL); + Py_DECREF (fn); + if (check_python_failure ("flush") == -1) + return -1; + Py_DECREF (r); + } + else { + nbdkit_error ("%s not implemented", "flush"); + return -1; + } + + return 0; +} + +static int +py_trim (void *handle, uint32_t count, uint64_t offset) +{ + PyObject *obj = handle; + PyObject *fn; + PyObject *r; + + if (callback_defined ("trim", &fn)) { + PyErr_Clear (); + + r = PyObject_CallFunction (fn, "OiL", obj, count, offset, NULL); + Py_DECREF (fn); + if (check_python_failure ("trim") == -1) + return -1; + Py_DECREF (r); + } + else { + nbdkit_error ("%s not implemented", "trim"); + return -1; + } + + return 0; +} + +static int +py_zero (void *handle, uint32_t count, uint64_t offset, int may_trim) +{ + PyObject *obj = handle; + PyObject *fn; + PyObject *args; + PyObject *r; + + if (callback_defined ("zero", &fn)) { + PyErr_Clear (); + + last_error = 0; + args = PyTuple_New (4); + Py_INCREF (obj); /* decremented by Py_DECREF (args) */ + PyTuple_SetItem (args, 0, obj); + PyTuple_SetItem (args, 1, PyLong_FromUnsignedLongLong (count)); + PyTuple_SetItem (args, 2, PyLong_FromUnsignedLongLong (offset)); + PyTuple_SetItem (args, 3, PyBool_FromLong (may_trim)); + r = PyObject_CallObject (fn, args); + Py_DECREF (fn); + Py_DECREF (args); + if (last_error == EOPNOTSUPP) { + /* When user requests this particular error, we want to + gracefully fall back, and to accomodate both a normal return + and an exception. */ + nbdkit_debug ("zero requested falling back to pwrite"); + Py_XDECREF (r); + PyErr_Clear (); + return -1; + } + if (check_python_failure ("zero") == -1) + return -1; + Py_DECREF (r); + return 0; + } + + nbdkit_debug ("zero missing, falling back to pwrite"); + nbdkit_set_error (EOPNOTSUPP); + return -1; +} + +static int +py_can_write (void *handle) +{ + PyObject *obj = handle; + PyObject *fn; + PyObject *r; + int ret; + + if (callback_defined ("can_write", &fn)) { + PyErr_Clear (); + + r = PyObject_CallFunctionObjArgs (fn, obj, NULL); + Py_DECREF (fn); + if (check_python_failure ("can_write") == -1) + return -1; + ret = r == Py_True; + Py_DECREF (r); + return ret; + } + /* No Python can_write callback, but there's a Python pwrite callback + * defined, so return 1. (In C modules, nbdkit would do this). + */ + else if (callback_defined ("pwrite", NULL)) + return 1; + else + return 0; +} + +static int +py_can_flush (void *handle) +{ + PyObject *obj = handle; + PyObject *fn; + PyObject *r; + int ret; + + if (callback_defined ("can_flush", &fn)) { + PyErr_Clear (); + + r = PyObject_CallFunctionObjArgs (fn, obj, NULL); + Py_DECREF (fn); + if (check_python_failure ("can_flush") == -1) + return -1; + ret = r == Py_True; + Py_DECREF (r); + return ret; + } + /* No Python can_flush callback, but there's a Python flush callback + * defined, so return 1. (In C modules, nbdkit would do this). + */ + else if (callback_defined ("flush", NULL)) + return 1; + else + return 0; +} + +static int +py_is_rotational (void *handle) +{ + PyObject *obj = handle; + PyObject *fn; + PyObject *r; + int ret; + + if (callback_defined ("is_rotational", &fn)) { + PyErr_Clear (); + + r = PyObject_CallFunctionObjArgs (fn, obj, NULL); + Py_DECREF (fn); + if (check_python_failure ("is_rotational") == -1) + return -1; + ret = r == Py_True; + Py_DECREF (r); + return ret; + } + else + return 0; +} + +static int +py_can_trim (void *handle) +{ + PyObject *obj = handle; + PyObject *fn; + PyObject *r; + int ret; + + if (callback_defined ("can_trim", &fn)) { + PyErr_Clear (); + + r = PyObject_CallFunctionObjArgs (fn, obj, NULL); + Py_DECREF (fn); + if (check_python_failure ("can_trim") == -1) + return -1; + ret = r == Py_True; + Py_DECREF (r); + return ret; + } + /* No Python can_trim callback, but there's a Python trim callback + * defined, so return 1. (In C modules, nbdkit would do this). + */ + else if (callback_defined ("trim", NULL)) + return 1; + else + return 0; +} + +#define py_config_help \ + "script= (required) The Python plugin to run.\n" \ + "[other arguments may be used by the plugin that you load]" + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS + +static struct nbdkit_plugin plugin = { + .name = "python", + .version = PACKAGE_VERSION, + + .load = py_load, + .unload = py_unload, + .dump_plugin = py_dump_plugin, + + .config = py_config, + .config_complete = py_config_complete, + .config_help = py_config_help, + + .open = py_open, + .close = py_close, + + .get_size = py_get_size, + .can_write = py_can_write, + .can_flush = py_can_flush, + .is_rotational = py_is_rotational, + .can_trim = py_can_trim, + + .pread = py_pread, + .pwrite = py_pwrite, + .flush = py_flush, + .trim = py_trim, + .zero = py_zero, +}; + +NBDKIT_REGISTER_PLUGIN (plugin) diff --git a/plugins/random/Makefile.am b/plugins/random/Makefile.am new file mode 100644 index 0000000..0d5c2a5 --- /dev/null +++ b/plugins/random/Makefile.am @@ -0,0 +1,61 @@ +# nbdkit +# Copyright (C) 2017-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-random-plugin.pod + +plugin_LTLIBRARIES = nbdkit-random-plugin.la + +nbdkit_random_plugin_la_SOURCES = \ + random.c \ + $(top_srcdir)/include/nbdkit-plugin.h + +nbdkit_random_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/include +nbdkit_random_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_random_plugin_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms + +if HAVE_POD + +man_MANS = nbdkit-random-plugin.1 +CLEANFILES += $(man_MANS) + +nbdkit-random-plugin.1: nbdkit-random-plugin.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/plugins/random/Makefile.in b/plugins/random/Makefile.in new file mode 100644 index 0000000..0c69ce0 --- /dev/null +++ b/plugins/random/Makefile.in @@ -0,0 +1,882 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2017-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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+ + +@HAVE_POD_TRUE@nbdkit-random-plugin.1: nbdkit-random-plugin.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/plugins/random/nbdkit-random-plugin.pod b/plugins/random/nbdkit-random-plugin.pod new file mode 100644 index 0000000..750daab --- /dev/null +++ b/plugins/random/nbdkit-random-plugin.pod @@ -0,0 +1,55 @@ +=head1 NAME + +nbdkit-random-plugin - plugin to serve random data + +=head1 SYNOPSIS + + nbdkit random size=SIZE [seed=SEED] + +=head1 DESCRIPTION + +C is a plugin for L which serves +random data, read only. + +The size of the virtual disk must be specified using the C +parameter. If you specify the C parameter then you will get the +same random data over multiple runs with the same seed. + +The random data is generated using an I method. This plugin +is mainly good for testing NBD clients. + +=head1 PARAMETERS + +=over 4 + +=item BSIZE + +Specify the virtual size of the disk image. + +This parameter is required. + +=item BSEED + +Specify the random seed to get repeatable data over multiple runs. + +If not specified then a random seed is chosen. + +=back + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/plugins/random/random.c b/plugins/random/random.c new file mode 100644 index 0000000..738f386 --- /dev/null +++ b/plugins/random/random.c @@ -0,0 +1,165 @@ +/* nbdkit + * Copyright (C) 2017-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include + +#define NBDKIT_API_VERSION 2 +#include + +#include "random.h" + +/* The size of disk in bytes (initialized by size= parameter). */ +static int64_t size = 0; + +/* Seed. */ +static uint32_t seed; + +static void +random_load (void) +{ + /* Set the seed to a random-ish value. This is not meant to be + * cryptographically useful. It can be overridden using the seed + * parameter. + */ + seed = time (NULL); +} + +static int +random_config (const char *key, const char *value) +{ + int64_t r; + + if (strcmp (key, "seed") == 0) { + if (sscanf (value, "%" SCNu32, &seed) != 1) { + nbdkit_error ("could not parse seed parameter"); + return -1; + } + } + else if (strcmp (key, "size") == 0) { + r = nbdkit_parse_size (value); + if (r == -1) + return -1; + size = r; + } + else { + nbdkit_error ("unknown parameter '%s'", key); + return -1; + } + + return 0; +} + +#define random_config_help \ + "size= (required) Size of the backing disk\n" \ + "seed= Random number generator seed" + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + +/* Create the per-connection handle. */ +static void * +random_open (int readonly) +{ + return NBDKIT_HANDLE_NOT_NEEDED; +} + +/* Get the disk size. */ +static int64_t +random_get_size (void *handle) +{ + return size; +} + +/* Serves the same data over multiple connections. */ +static int +random_can_multi_conn (void *handle) +{ + return 1; +} + +/* Read data. */ +static int +random_pread (void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags) +{ + uint32_t i; + unsigned char *b = buf; + uint64_t s; + + for (i = 0; i < count; ++i) { + /* We use nbdkit common/include/random.h to make random numbers. + * + * However we're not quite using it in the ordinary way. In order + * to be able to read any byte of data without needing to run the + * PRNG from the start, the random data is computed from the index + * and seed through three rounds of PRNG: + * + * index i PRNG(seed+i) -> PRNG -> PRNG -> mod 256 -> b[i] + * index i+1 PRNG(seed+i+1) -> PRNG -> PRNG -> mod 256 -> b[i+1] + * etc + */ + struct random_state state; + + xsrandom (seed + offset + i, &state); + xrandom (&state); + xrandom (&state); + s = xrandom (&state); + s &= 255; + b[i] = s; + } + return 0; +} + +static struct nbdkit_plugin plugin = { + .name = "random", + .version = PACKAGE_VERSION, + .load = random_load, + .config = random_config, + .config_help = random_config_help, + .open = random_open, + .get_size = random_get_size, + .can_multi_conn = random_can_multi_conn, + .pread = random_pread, + /* In this plugin, errno is preserved properly along error return + * paths from failed system calls. + */ + .errno_is_preserved = 1, +}; + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/plugins/ruby/Makefile.am b/plugins/ruby/Makefile.am new file mode 100644 index 0000000..5ca3bac --- /dev/null +++ b/plugins/ruby/Makefile.am @@ -0,0 +1,70 @@ +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = \ + nbdkit-ruby-plugin.pod \ + example.rb + +if HAVE_RUBY + +plugin_LTLIBRARIES = nbdkit-ruby-plugin.la + +nbdkit_ruby_plugin_la_SOURCES = \ + ruby.c \ + $(top_srcdir)/include/nbdkit-plugin.h + +nbdkit_ruby_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/include +nbdkit_ruby_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) \ + $(RUBY_CFLAGS) +nbdkit_ruby_plugin_la_LIBADD = \ + $(RUBY_LIBS) +nbdkit_ruby_plugin_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms \ + $(RUBY_LDFLAGS) + +if HAVE_POD + +man_MANS = nbdkit-ruby-plugin.3 +CLEANFILES += $(man_MANS) + +nbdkit-ruby-plugin.3: nbdkit-ruby-plugin.pod + $(PODWRAPPER) --section=3 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD + +endif diff --git a/plugins/ruby/Makefile.in b/plugins/ruby/Makefile.in new file mode 100644 index 0000000..1654054 --- /dev/null +++ b/plugins/ruby/Makefile.in @@ -0,0 +1,893 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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./plugins/ruby/example.rb test1=foo test2=bar +# +# The -f -v arguments are optional. They cause the server to stay in +# the foreground and print debugging, which is useful when testing. +# +# You can connect to the server using guestfish or qemu, eg: +# +# guestfish --format=raw -a nbd://localhost +# > run +# > part-disk /dev/sda mbr +# > mkfs ext2 /dev/sda1 +# > list-filesystems +# > mount /dev/sda1 / +# > [etc] + +include Nbdkit + +$disk = "\0" * (1024 * 1024) + +def config(key, value) + printf("%s = %s\n", key, value) +end + +def open(readonly) + # You can return any non-nil Ruby object as a handle. The + # same object is passed as the first argument to the other + # callbacks. + h = {} + return h +end + +def get_size(h) + return $disk.bytesize +end + +def pread(h, count, offset) + return $disk.byteslice(offset, count) +end + +def pwrite(h, buf, offset) + # Hmm, is this using bytes or chars? XXX + $disk[offset, buf.length] = buf +end + +def zero(h, count, offset, may_trim) + if may_trim + $disk[offset, count] = "\0" * count + else + set_error(Errno::EOPNOTSUPP) + raise "falling back to pwrite" + end +end diff --git a/plugins/ruby/nbdkit-ruby-plugin.pod b/plugins/ruby/nbdkit-ruby-plugin.pod new file mode 100644 index 0000000..18934cc --- /dev/null +++ b/plugins/ruby/nbdkit-ruby-plugin.pod @@ -0,0 +1,302 @@ +=head1 NAME + +nbdkit-ruby-plugin - nbdkit ruby plugin + +=head1 SYNOPSIS + + nbdkit ruby /path/to/plugin.rb [arguments...] + +=head1 WARNING + +The Ruby language is fundamentally broken when it comes to embedding +in a program which uses pthreads. This means you may see random +"stack overflows" when using this plugin on some versions of Ruby but +not others. + +For the whole sorry saga, see: +L + +=head1 DESCRIPTION + +C is an embedded Ruby interpreter for +L, allowing you to write nbdkit plugins in Ruby. + +=head2 If you have been given an nbdkit Ruby plugin + +Assuming you have a Ruby script which is an nbdkit plugin, you run it +like this: + + nbdkit ruby /path/to/ruby.rb + +You may have to add further C arguments to the command +line. Read the Ruby script to see if it requires any. + +=head1 WRITING A RUBY NBDKIT PLUGIN + +For an example plugin written in Ruby, see: +L + +Broadly speaking, Ruby nbdkit plugins work like C ones, so you should +read L first. + +To write a Ruby nbdkit plugin, you create a Ruby file which +contains at least the following required functions: + + def open(readonly) + # see below + end + def get_size(h) + # see below + end + def pread(h, count, offset) + # see below + end + +Note that the subroutines must have those literal names (like C), +because the C part looks up and calls those functions directly. You +may want to include documentation and globals (eg. for storing global +state). Any other top level statements are run when the script is +loaded, just like ordinary Ruby. + +=head2 Executable script + +If you want you can make the script executable and include a "shebang" +at the top: + + #!/usr/sbin/nbdkit ruby + +See also L. + +These scripts can also be installed in the C<$plugindir>. See +L. + +=head2 Methods + +Your script has access to the C module, with the following +singleton methods: + + Nbdkit.set_error(err) + +Record C as the reason you are about to raise an +exception. C should either be a class that defines an C +constant (all of the subclasses of C in module +C have this property), an object that defines an C +method with no arguments (all instances of C have +this property), or an integer value corresponding to the usual errno +values. + +=head2 Exceptions + +Ruby callbacks should throw exceptions to indicate errors. Remember +to use C if you need to control which error is sent +back to the client; if omitted, the client will see an error of C. + +=head2 Ruby callbacks + +This just documents the arguments to the callbacks in Ruby, and any +way that they differ from the C callbacks. In all other respects they +work the same way as the C callbacks, so you should go and read +L. + +=over 4 + +=item C + +(Optional) + +There are no arguments or return value. + +=item C + +(Optional) + + def config(key, value) + # no return value + end + +=item C + +(Optional) + +There are no arguments or return value. + +=item C + +(Required) + + def open(readonly) + # return handle + end + +You can return any non-nil Ruby value as the handle. It is passed +back in subsequent calls. + +=item C + +(Optional) + + def close(h) + # no return value + end + +=item C + +(Required) + + def get_size(h) + # return the size of the disk + end + +=item C + +(Optional) + + def can_write(h) + # return a boolean + end + +=item C + +(Optional) + + def can_flush(h) + # return a boolean + end + +=item C + +(Optional) + + def is_rotational(h) + # return a boolean + end + +=item C + +(Optional) + + def can_trim(h) + # return a boolean + end + +=item C + +(Required) + + def pread(h, count, offset) + # construct a string of length count bytes and return it + end + +The body of your C function should construct a string of length +(at least) C bytes. You should read C bytes from the +disk starting at C. + +NBD only supports whole reads, so your function should try to read +the whole region (perhaps requiring a loop). If the read fails or +is partial, your function should throw an exception, optionally using +C first. + +=item C + +(Optional) + + def pwrite(h, buf, offset) + length = buf.length + # no return value + end + +The body of your C function should write the C string to +the disk. You should write C bytes to the disk starting at +C. + +NBD only supports whole writes, so your function should try to +write the whole region (perhaps requiring a loop). If the write +fails or is partial, your function should throw an exception, optionally +using C first. + +=item C + +(Optional) + + def flush(h) + # no return value + end + +The body of your C function should do a L or +L or equivalent on the backing store. + +If the flush fails, your function should throw an exception, optionally +using C first. + +=item C + +(Optional) + + def trim(h, count, offset) + # no return value + end + +The body of your C function should "punch a hole" in the +backing store. If the trim fails, your function should throw an +exception, optionally using C first. + +=item C + +(Optional) + + def zero(h, count, offset, may_trim) + # no return value + +The body of your C function should ensure that C bytes +of the disk, starting at C, will read back as zero. If +C is true, the operation may be optimized as a trim as long +as subsequent reads see zeroes. + +NBD only supports whole writes, so your function should try to +write the whole region (perhaps requiring a loop). If the write +fails or is partial, your function should throw an exception, +optionally using C first. In particular, if +you would like to automatically fall back to C (perhaps +because there is nothing to optimize if C is false), +use C. + +=back + +=head2 Missing callbacks + +=over 4 + +=item Missing: C and C + +These are not needed because you can just use ordinary Ruby +constructs. + +=item Missing: C, C, C, C, +C + +These are not yet supported. + +=back + +=head2 Threads + +The thread model for Ruby callbacks currently cannot be set from Ruby. +It is hard-coded in the C part to +C. This may change or be +settable in future. + +=head1 SEE ALSO + +L, +L, +L. + +=head1 AUTHORS + +Eric Blake + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2013-2018 Red Hat Inc. diff --git a/plugins/ruby/ruby.c b/plugins/ruby/ruby.c new file mode 100644 index 0000000..b31f6a4 --- /dev/null +++ b/plugins/ruby/ruby.c @@ -0,0 +1,547 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include + +#include + +#include +#ifdef HAVE_RUBY_VERSION_H +#include +#endif + +static VALUE nbdkit_module = Qnil; +static int last_error; + +static VALUE +set_error (VALUE self, VALUE arg) +{ + int err; + VALUE v; + + if (TYPE(arg) == T_CLASS) { + v = rb_const_get (arg, rb_intern ("Errno")); + err = NUM2INT (v); + } else if (TYPE (arg) == T_OBJECT) { + v = rb_funcall (arg, rb_intern ("errno"), 0); + err = NUM2INT (v); + } else { + err = NUM2INT (arg); + } + last_error = err; + nbdkit_set_error (err); + return Qnil; +} + +static void +plugin_rb_load (void) +{ + RUBY_INIT_STACK; + ruby_init (); + ruby_init_loadpath (); + + nbdkit_module = rb_define_module ("Nbdkit"); + rb_define_module_function (nbdkit_module, "set_error", set_error, 1); +} + +/* https://stackoverflow.com/questions/11086549/how-to-rb-protect-everything-in-ruby */ +#define MAX_ARGS 16 +struct callback_data { + VALUE receiver; /* object being called */ + ID method_id; /* method on object being called */ + int argc; /* number of args */ + VALUE argv[MAX_ARGS]; /* list of args */ +}; + +static VALUE +callback_dispatch (VALUE datav) +{ + struct callback_data *data = (struct callback_data *) datav; + return rb_funcall2 (data->receiver, data->method_id, data->argc, data->argv); +} + +enum exception_class { + NO_EXCEPTION = 0, + EXCEPTION_NO_METHOD_ERROR, + EXCEPTION_OTHER, +}; + +static VALUE +funcall2 (VALUE receiver, ID method_id, int argc, volatile VALUE *argv, + enum exception_class *exception_happened) +{ + struct callback_data data; + size_t i, len; + int state = 0; + volatile VALUE ret, exn, message, backtrace, b; + + assert (argc <= MAX_ARGS); + + data.receiver = receiver; + data.method_id = method_id; + data.argc = argc; + for (i = 0; i < argc; ++i) + data.argv[i] = argv[i]; + + ret = rb_protect (callback_dispatch, (VALUE) &data, &state); + if (state) { + /* An exception was thrown. Get the per-thread exception. */ + exn = rb_errinfo (); + + /* We treat NoMethodError specially. */ + if (rb_obj_is_kind_of (exn, rb_eNoMethodError)) { + if (exception_happened) + *exception_happened = EXCEPTION_NO_METHOD_ERROR; + } + else { + if (exception_happened) + *exception_happened = EXCEPTION_OTHER; + + /* Print the exception. */ + message = rb_funcall (exn, rb_intern ("to_s"), 0); + nbdkit_error ("ruby: %s", StringValueCStr (message)); + + /* Try to print the backtrace (a list of strings) if it exists. */ + backtrace = rb_funcall (exn, rb_intern ("backtrace"), 0); + if (! NIL_P (backtrace)) { + len = RARRAY_LEN (backtrace); + for (i = 0; i < len; ++i) { + b = rb_ary_entry (backtrace, i); + nbdkit_error ("ruby: frame #%zu %s", i, StringValueCStr (b)); + } + } + } + + /* Reset the current thread exception. */ + rb_set_errinfo (Qnil); + return Qnil; + } + else { + if (exception_happened) + *exception_happened = NO_EXCEPTION; + return ret; + } +} + +static const char *script = NULL; +static void *code = NULL; + +static void +plugin_rb_unload (void) +{ + if (ruby_cleanup (0) != 0) + nbdkit_error ("ruby_cleanup failed"); +} + +static void +plugin_rb_dump_plugin (void) +{ +#ifdef RUBY_API_VERSION_MAJOR + printf ("ruby_api_version=%d", RUBY_API_VERSION_MAJOR); +#ifdef RUBY_API_VERSION_MINOR + printf (".%d", RUBY_API_VERSION_MINOR); +#ifdef RUBY_API_VERSION_TEENY + printf (".%d", RUBY_API_VERSION_TEENY); +#endif +#endif + printf ("\n"); +#endif + + if (!script) + return; + + assert (code != NULL); + + (void) funcall2 (Qnil, rb_intern ("dump_plugin"), 0, NULL, NULL); +} + +static int +plugin_rb_config (const char *key, const char *value) +{ + /* The first parameter must be "script". */ + if (!script) { + int state; + + if (strcmp (key, "script") != 0) { + nbdkit_error ("the first parameter must be script=/path/to/ruby/script.rb"); + return -1; + } + script = value; + + nbdkit_debug ("ruby: loading script %s", script); + + /* Load the Ruby script into the interpreter. */ + const char *options[] = { "--", script }; + code = ruby_options (sizeof options / sizeof options[0], + (char **) options); + + /* Check if we managed to compile the Ruby script to code. */ + if (!ruby_executable_node (code, &state)) { + nbdkit_error ("could not compile ruby script (%s, state=%d)", + script, state); + return -1; + } + + /* Execute the Ruby script. */ + state = ruby_exec_node (code); + if (state) { + nbdkit_error ("could not execute ruby script (%s, state=%d)", + script, state); + return -1; + } + + return 0; + } + else { + volatile VALUE argv[2]; + enum exception_class exception_happened; + + argv[0] = rb_str_new2 (key); + argv[1] = rb_str_new2 (value); + (void) funcall2 (Qnil, rb_intern ("config"), 2, argv, &exception_happened); + if (exception_happened == EXCEPTION_NO_METHOD_ERROR) { + /* No config method, emulate what core nbdkit does if the + * config callback is NULL. + */ + nbdkit_error ("%s: this plugin does not need command line configuration", + script); + return -1; + } + else if (exception_happened == EXCEPTION_OTHER) + return -1; + + return 0; + } +} + +static int +plugin_rb_config_complete (void) +{ + enum exception_class exception_happened; + + if (!script) { + nbdkit_error ("the first parameter must be script=/path/to/ruby/script.rb"); + return -1; + } + + assert (code != NULL); + + (void) funcall2 (Qnil, rb_intern ("config_complete"), 0, NULL, + &exception_happened); + if (exception_happened == EXCEPTION_NO_METHOD_ERROR) + return 0; /* no config_complete method defined, ignore */ + else if (exception_happened == EXCEPTION_OTHER) + return -1; + + return 0; +} + +static void * +plugin_rb_open (int readonly) +{ + volatile VALUE argv[1]; + volatile VALUE rv; + enum exception_class exception_happened; + + argv[0] = readonly ? Qtrue : Qfalse; + rv = funcall2 (Qnil, rb_intern ("open"), 1, argv, &exception_happened); + if (exception_happened == EXCEPTION_NO_METHOD_ERROR) { + nbdkit_error ("%s: missing callback: %s", script, "open"); + return NULL; + } + else if (exception_happened == EXCEPTION_OTHER) + return NULL; + + return (void *) rv; +} + +static void +plugin_rb_close (void *handle) +{ + volatile VALUE argv[1]; + + argv[0] = (VALUE) handle; + (void) funcall2 (Qnil, rb_intern ("close"), 1, argv, NULL); + /* OK to ignore exceptions here, if they are important then an error + * was printed already. + */ +} + +static int64_t +plugin_rb_get_size (void *handle) +{ + volatile VALUE argv[1]; + volatile VALUE rv; + enum exception_class exception_happened; + + argv[0] = (VALUE) handle; + rv = funcall2 (Qnil, rb_intern ("get_size"), 1, argv, &exception_happened); + if (exception_happened == EXCEPTION_NO_METHOD_ERROR) { + nbdkit_error ("%s: missing callback: %s", script, "get_size"); + return -1; + } + else if (exception_happened == EXCEPTION_OTHER) + return -1; + + return NUM2ULL (rv); +} + +static int +plugin_rb_pread (void *handle, void *buf, + uint32_t count, uint64_t offset) +{ + volatile VALUE argv[3]; + volatile VALUE rv; + enum exception_class exception_happened; + + argv[0] = (VALUE) handle; + argv[1] = ULL2NUM (count); + argv[2] = ULL2NUM (offset); + rv = funcall2 (Qnil, rb_intern ("pread"), 3, argv, &exception_happened); + if (exception_happened == EXCEPTION_NO_METHOD_ERROR) { + nbdkit_error ("%s: missing callback: %s", script, "pread"); + return -1; + } + else if (exception_happened == EXCEPTION_OTHER) + return -1; + + if (RSTRING_LEN (rv) < count) { + nbdkit_error ("%s: byte array returned from pread is too small", + script); + return -1; + } + + memcpy (buf, RSTRING_PTR (rv), count); + return 0; +} + +static int +plugin_rb_pwrite (void *handle, const void *buf, + uint32_t count, uint64_t offset) +{ + volatile VALUE argv[3]; + enum exception_class exception_happened; + + argv[0] = (VALUE) handle; + argv[1] = rb_str_new (buf, count); + argv[2] = ULL2NUM (offset); + (void) funcall2 (Qnil, rb_intern ("pwrite"), 3, argv, &exception_happened); + if (exception_happened == EXCEPTION_NO_METHOD_ERROR) { + nbdkit_error ("%s: missing callback: %s", script, "pwrite"); + return -1; + } + else if (exception_happened == EXCEPTION_OTHER) + return -1; + + return 0; +} + +static int +plugin_rb_flush (void *handle) +{ + volatile VALUE argv[1]; + enum exception_class exception_happened; + + argv[0] = (VALUE) handle; + (void) funcall2 (Qnil, rb_intern ("flush"), 1, argv, &exception_happened); + if (exception_happened == EXCEPTION_NO_METHOD_ERROR) { + nbdkit_error ("%s: not implemented: %s", script, "flush"); + return -1; + } + else if (exception_happened == EXCEPTION_OTHER) + return -1; + + return 0; +} + +static int +plugin_rb_trim (void *handle, uint32_t count, uint64_t offset) +{ + volatile VALUE argv[3]; + enum exception_class exception_happened; + + argv[0] = (VALUE) handle; + argv[1] = ULL2NUM (count); + argv[2] = ULL2NUM (offset); + (void) funcall2 (Qnil, rb_intern ("trim"), 3, argv, &exception_happened); + if (exception_happened == EXCEPTION_NO_METHOD_ERROR) { + nbdkit_error ("%s: not implemented: %s", script, "trim"); + return -1; + } + else if (exception_happened == EXCEPTION_OTHER) + return -1; + + return 0; +} + +static int +plugin_rb_zero (void *handle, uint32_t count, uint64_t offset, int may_trim) +{ + volatile VALUE argv[4]; + enum exception_class exception_happened; + + argv[0] = (VALUE) handle; + argv[1] = ULL2NUM (count); + argv[2] = ULL2NUM (offset); + argv[3] = may_trim ? Qtrue : Qfalse; + last_error = 0; + (void) funcall2 (Qnil, rb_intern ("zero"), 4, argv, &exception_happened); + if (last_error == EOPNOTSUPP || + exception_happened == EXCEPTION_NO_METHOD_ERROR) { + nbdkit_debug ("zero falling back to pwrite"); + nbdkit_set_error (EOPNOTSUPP); + return -1; + } + else if (exception_happened == EXCEPTION_OTHER) + return -1; + + return 0; +} + +static int +plugin_rb_can_write (void *handle) +{ + volatile VALUE argv[1]; + volatile VALUE rv; + enum exception_class exception_happened; + + argv[0] = (VALUE) handle; + rv = funcall2 (Qnil, rb_intern ("can_write"), 1, argv, &exception_happened); + if (exception_happened == EXCEPTION_NO_METHOD_ERROR) + /* Fall back to checking if the pwrite method exists. */ + rv = rb_funcall (Qnil, rb_intern ("respond_to?"), + 2, ID2SYM (rb_intern ("pwrite")), Qtrue); + else if (exception_happened == EXCEPTION_OTHER) + return -1; + + return RTEST (rv); +} + +static int +plugin_rb_can_flush (void *handle) +{ + volatile VALUE argv[1]; + volatile VALUE rv; + enum exception_class exception_happened; + + argv[0] = (VALUE) handle; + rv = funcall2 (Qnil, rb_intern ("can_flush"), 1, argv, &exception_happened); + if (exception_happened == EXCEPTION_NO_METHOD_ERROR) + /* Fall back to checking if the flush method exists. */ + rv = rb_funcall (Qnil, rb_intern ("respond_to?"), + 2, ID2SYM (rb_intern ("flush")), Qtrue); + else if (exception_happened == EXCEPTION_OTHER) + return -1; + + return RTEST (rv); +} + +static int +plugin_rb_is_rotational (void *handle) +{ + volatile VALUE argv[1]; + volatile VALUE rv; + enum exception_class exception_happened; + + argv[0] = (VALUE) handle; + rv = funcall2 (Qnil, rb_intern ("is_rotational"), 1, argv, + &exception_happened); + if (exception_happened == EXCEPTION_NO_METHOD_ERROR) + return 0; + else if (exception_happened == EXCEPTION_OTHER) + return -1; + + return RTEST (rv); +} + +static int +plugin_rb_can_trim (void *handle) +{ + volatile VALUE argv[1]; + volatile VALUE rv; + enum exception_class exception_happened; + + argv[0] = (VALUE) handle; + rv = funcall2 (Qnil, rb_intern ("can_trim"), 1, argv, &exception_happened); + if (exception_happened == EXCEPTION_NO_METHOD_ERROR) + /* Fall back to checking if the trim method exists. */ + rv = rb_funcall (Qnil, rb_intern ("respond_to?"), + 2, ID2SYM (rb_intern ("trim")), Qtrue); + else if (exception_happened == EXCEPTION_OTHER) + return -1; + + return RTEST (rv); +} + +#define plugin_rb_config_help \ + "script= (required) The Ruby plugin to run.\n" \ + "[other arguments may be used by the plugin that you load]" + +/* Ruby is inherently unsafe to call in parallel from multiple + * threads. + */ +#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS + +static struct nbdkit_plugin plugin = { + .name = "ruby", + .version = PACKAGE_VERSION, + + .load = plugin_rb_load, + .unload = plugin_rb_unload, + .dump_plugin = plugin_rb_dump_plugin, + + .config = plugin_rb_config, + .config_complete = plugin_rb_config_complete, + .config_help = plugin_rb_config_help, + + .open = plugin_rb_open, + .close = plugin_rb_close, + + .get_size = plugin_rb_get_size, + .can_write = plugin_rb_can_write, + .can_flush = plugin_rb_can_flush, + .is_rotational = plugin_rb_is_rotational, + .can_trim = plugin_rb_can_trim, + + .pread = plugin_rb_pread, + .pwrite = plugin_rb_pwrite, + .flush = plugin_rb_flush, + .trim = plugin_rb_trim, + .zero = plugin_rb_zero, +}; + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/plugins/rust/Cargo.toml.in b/plugins/rust/Cargo.toml.in new file mode 100644 index 0000000..f7a9f41 --- /dev/null +++ b/plugins/rust/Cargo.toml.in @@ -0,0 +1,14 @@ +[package] +name = "nbdkit" +version = "@VERSION@" +authors = ["Richard W.M. Jones "] +edition = "2018" + +[dependencies] +libc = "0.2" +# lazy_static is used by the example. +lazy_static = "1.2.0" + +[[example]] +name = "ramdisk" +crate-type = ["cdylib"] diff --git a/plugins/rust/Makefile.am b/plugins/rust/Makefile.am new file mode 100644 index 0000000..b0364a2 --- /dev/null +++ b/plugins/rust/Makefile.am @@ -0,0 +1,64 @@ +# nbdkit +# Copyright (C) 2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = \ + Cargo.toml.in \ + examples/ramdisk.rs \ + nbdkit-rust-plugin.pod \ + src/lib.rs + +if HAVE_RUST + +noinst_SCRIPTS = \ + target/release/libnbdkit.rlib \ + target/release/examples/libramdisk.so + +target/release/libnbdkit.rlib: Cargo.toml src/lib.rs + cargo build --release + +target/release/examples/libramdisk.so: Cargo.toml examples/ramdisk.rs + cargo build --release --example ramdisk + +if HAVE_POD + +man_MANS = nbdkit-rust-plugin.3 +CLEANFILES += $(man_MANS) + +nbdkit-rust-plugin.3: nbdkit-rust-plugin.pod + $(PODWRAPPER) --section=3 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD + +endif diff --git a/plugins/rust/Makefile.in b/plugins/rust/Makefile.in new file mode 100644 index 0000000..ad9c619 --- /dev/null +++ b/plugins/rust/Makefile.in @@ -0,0 +1,694 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +VPATH = @srcdir@ +am__is_gnu_make = { \ + if test -z '$(MAKELEVEL)'; then \ + false; \ + elif test -n '$(MAKE_HOST)'; then \ + true; \ + elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \ + true; \ + else \ + false; \ + fi; \ +} +am__make_running_with_option = \ + case $${target_option-} in \ + ?) ;; \ + *) echo "am__make_running_with_option: internal error: invalid" \ + "target option '$${target_option-}' specified" >&2; \ + exit 1;; \ + esac; \ + 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+.NOEXPORT: diff --git a/plugins/rust/examples/ramdisk.rs b/plugins/rust/examples/ramdisk.rs new file mode 100644 index 0000000..1994421 --- /dev/null +++ b/plugins/rust/examples/ramdisk.rs @@ -0,0 +1,118 @@ +// nbdkit +// Copyright (C) 2019 Red Hat Inc. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// +// * Redistributions in binary form must reproduce the above copyright +// notice, this list of conditions and the following disclaimer in the +// documentation and/or other materials provided with the distribution. +// +// * Neither the name of Red Hat nor the names of its contributors may be +// used to endorse or promote products derived from this software without +// specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +// PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +// USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +// OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +// SUCH DAMAGE. + +extern crate nbdkit; + +#[macro_use] +extern crate lazy_static; + +use libc::*; +use std::ptr; +use std::os::raw::c_int; +use std::sync::Mutex; + +use nbdkit::*; +use nbdkit::ThreadModel::*; + +// The RAM disk. +lazy_static! { + static ref DISK: Mutex> = Mutex::new (vec![0; 100 * 1024 * 1024]); +} + +struct Handle { + // Box::new doesn't allocate anything unless we put some dummy + // fields here. In a real implementation you would put per-handle + // data here as required. + _not_used: i32, +} + +extern fn ramdisk_open (_readonly: c_int) -> *mut c_void { + let h = Handle {_not_used: 0}; + let h = Box::new(h); + return Box::into_raw(h) as *mut c_void; +} + +extern fn ramdisk_close (h: *mut c_void) { + let h = unsafe { Box::from_raw(h as *mut Handle) }; + drop (h); +} + +extern fn ramdisk_get_size (_h: *mut c_void) -> int64_t { + return DISK.lock().unwrap().capacity() as int64_t; +} + +extern fn ramdisk_pread (_h: *mut c_void, buf: *mut c_char, count: uint32_t, + offset: uint64_t, _flags: uint32_t) -> c_int { + let offset = offset as usize; + let count = count as usize; + let disk = DISK.lock().unwrap(); + unsafe { + ptr::copy_nonoverlapping (&disk[offset], buf as *mut u8, count); + } + return 0; +} + +extern fn ramdisk_pwrite (_h: *mut c_void, buf: *const c_char, count: uint32_t, + offset: uint64_t, _flags: uint32_t) -> c_int { + let offset = offset as usize; + let count = count as usize; + let mut disk = DISK.lock().unwrap(); + unsafe { + ptr::copy_nonoverlapping (buf as *const u8, &mut disk[offset], count); + } + return 0; +} + +// Every plugin must define a public, C-compatible plugin_init +// function which returns a pointer to a Plugin struct. +#[no_mangle] +pub extern fn plugin_init () -> *const Plugin { + // Plugin name. + // https://github.com/rust-lang/rfcs/issues/400 + let name = "ramdisk\0" as *const str as *const [c_char] as *const c_char; + + // Create a mutable plugin, setting the 5 required fields. + let mut plugin = Plugin::new ( + Parallel, + name, + ramdisk_open, + ramdisk_get_size, + ramdisk_pread + ); + // Update any other fields as required. + plugin.close = Some (ramdisk_close); + plugin.pwrite = Some (ramdisk_pwrite); + + // Return the pointer. + let plugin = Box::new(plugin); + // XXX Memory leak. + return Box::into_raw(plugin); +} diff --git a/plugins/rust/nbdkit-rust-plugin.pod b/plugins/rust/nbdkit-rust-plugin.pod new file mode 100644 index 0000000..db2a55e --- /dev/null +++ b/plugins/rust/nbdkit-rust-plugin.pod @@ -0,0 +1,105 @@ +=head1 NAME + +nbdkit-rust-plugin - writing nbdkit plugins in Rust + +=head1 SYNOPSIS + + nbdkit /path/to/libplugin.so [arguments...] + +=head1 DESCRIPTION + +This manual page describes how to write nbdkit plugins in compiled +Rust code. Rust plugins are compiled to F<*.so> files (the same as +plugins written in C) and are used in the same way. + +=head1 WRITING A RUST NBDKIT PLUGIN + +Broadly speaking, Rust nbdkit plugins work like C ones, so you should +read L first. + +You should also look at +L +and +L +in the nbdkit source tree. The first describes the plugin interface +for Rust plugins and the second provides a simple example. + +We may change how Rust plugins are written in future to make them more +idiomatic. At the moment each callback corresponds directly to a C +callback - in fact each is called directly from the server. + +Your Rust code should define a public C function which +returns a pointer to a C struct. This struct is exactly +compatible with the C struct used by C plugins. + + extern crate nbdkit; + use nbdkit::*; + use nbdkit::ThreadModel::*; + + #[no_mangle] + pub extern fn plugin_init () -> *const Plugin { + // Plugin name. + let name = "myplugin\0" + as *const str as *const [c_char] as *const c_char; + + // Create a mutable plugin, setting the 5 required fields. + let mut plugin = Plugin::new ( + Serialize_All_Requests, + name, + myplugin_open, + myplugin_get_size, + myplugin_pread + ); + // Update any other fields as required. + plugin.close = Some (myplugin_close); + plugin.pwrite = Some (myplugin_pwrite); + + // Return the pointer. + let plugin = Box::new(plugin); + return Box::into_raw(plugin); +} + +=head2 Compiling a Rust nbdkit plugin + +Because you are building a C-compatible shared library, the crate type +must be set to: + + crate-type = ["cdylib"] + +After compiling using C you can then use +C as an nbdkit plugin (see L, +L): + + nbdkit ./libmyplugin.so [args ...] + +=head2 Threads + +The first parameter of C is the thread model, which can +be one of the values in the table below. For more information on +thread models, see L. + +=over 4 + +=item C + +=item C + +=item C + +=item C + +=back + +=head1 SEE ALSO + +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2019 Red Hat Inc. diff --git a/plugins/rust/src/lib.rs b/plugins/rust/src/lib.rs new file mode 100644 index 0000000..2a7121b --- /dev/null +++ b/plugins/rust/src/lib.rs @@ -0,0 +1,154 @@ +// nbdkit +// Copyright (C) 2019 Red Hat Inc. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// +// * Redistributions in binary form must reproduce the above copyright +// notice, this list of conditions and the following disclaimer in the +// documentation and/or other materials provided with the distribution. +// +// * Neither the name of Red Hat nor the names of its contributors may be +// used to endorse or promote products derived from this software without +// specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +// PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +// USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +// OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +// SUCH DAMAGE. + +extern crate libc; + +use libc::*; +use std::os::raw::c_int; +use std::mem; + +// This struct describes the plugin ABI which your plugin_init() +// function must return. +#[repr(C)] +pub struct Plugin { + _struct_size: uint64_t, + _api_version: c_int, + _thread_model: c_int, + + pub name: *const c_char, + pub longname: *const c_char, + pub version: *const c_char, + pub description: *const c_char, + + pub load: Option, + pub unload: Option, + + pub config: Option, + pub config_complete: Option c_int>, + pub config_help: *const c_char, + + pub open: extern fn (c_int) -> *mut c_void, + pub close: Option, + + pub get_size: extern fn (*mut c_void) -> int64_t, + + pub can_write: Option c_int>, + pub can_flush: Option c_int>, + pub is_rotational: Option c_int>, + pub can_trim: Option c_int>, + + // Slots for old v1 API functions. + _pread_old: Option, + _pwrite_old: Option, + _flush_old: Option, + _trim_old: Option, + _zero_old: Option, + + errno_is_preserved: c_int, + + pub dump_plugin: Option, + + pub can_zero: Option c_int>, + pub can_fua: Option c_int>, + + pub pread: extern fn (h: *mut c_void, buf: *mut c_char, count: uint32_t, + offset: uint64_t, + flags: uint32_t) -> c_int, + pub pwrite: Option c_int>, + pub flush: Option c_int>, + pub trim: Option c_int>, + pub zero: Option c_int>, + + pub magic_config_key: *const c_char, + + pub can_multi_conn: Option c_int>, +} + +pub enum ThreadModel { + SerializeConnections = 0, + SerializeAllRequests = 1, + SerializeRequests = 2, + Parallel = 3, +} + +impl Plugin { + pub fn new (thread_model: ThreadModel, + name: *const c_char, + open: extern fn (c_int) -> *mut c_void, + get_size: extern fn (*mut c_void) -> int64_t, + pread: extern fn (h: *mut c_void, buf: *mut c_char, + count: uint32_t, offset: uint64_t, + flags: uint32_t) -> c_int) -> Plugin { + Plugin { + _struct_size: mem::size_of::() as uint64_t, + _api_version: 2, + _thread_model: thread_model as c_int, + name: name, + longname: std::ptr::null(), + version: std::ptr::null(), + description: std::ptr::null(), + load: None, + unload: None, + config: None, + config_complete: None, + config_help: std::ptr::null(), + open: open, + close: None, + get_size: get_size, + can_write: None, + can_flush: None, + is_rotational: None, + can_trim: None, + _pread_old: None, + _pwrite_old: None, + _flush_old: None, + _trim_old: None, + _zero_old: None, + errno_is_preserved: 0, + dump_plugin: None, + can_zero: None, + can_fua: None, + pread: pread, + pwrite: None, + flush: None, + trim: None, + zero: None, + magic_config_key: std::ptr::null(), + can_multi_conn: None, + } + } +} diff --git a/plugins/sh/Makefile.am b/plugins/sh/Makefile.am new file mode 100644 index 0000000..59b1921 --- /dev/null +++ b/plugins/sh/Makefile.am @@ -0,0 +1,64 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = \ + nbdkit-sh-plugin.pod \ + example.sh + +plugin_LTLIBRARIES = nbdkit-sh-plugin.la + +nbdkit_sh_plugin_la_SOURCES = \ + call.c \ + call.h \ + sh.c \ + $(top_srcdir)/include/nbdkit-plugin.h + +nbdkit_sh_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/include +nbdkit_sh_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_sh_plugin_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms + +if HAVE_POD + +man_MANS = nbdkit-sh-plugin.3 +CLEANFILES += $(man_MANS) + +nbdkit-sh-plugin.3: nbdkit-sh-plugin.pod + $(PODWRAPPER) --section=3 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/plugins/sh/Makefile.in b/plugins/sh/Makefile.in new file mode 100644 index 0000000..30da133 --- /dev/null +++ b/plugins/sh/Makefile.in @@ -0,0 +1,896 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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uninstall-man3 uninstall-pluginLTLIBRARIES + +.PRECIOUS: Makefile + + +@HAVE_POD_TRUE@nbdkit-sh-plugin.3: nbdkit-sh-plugin.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=3 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/plugins/sh/call.c b/plugins/sh/call.c new file mode 100644 index 0000000..de9cc8d --- /dev/null +++ b/plugins/sh/call.c @@ -0,0 +1,417 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "call.h" + +/* Ensure there is at least 1 byte of space in the buffer. */ +static int +expand_buf (char **buf, size_t *buflen, size_t *bufalloc) +{ + char *nb; + + if (*bufalloc > *buflen) + return 0; + + *bufalloc = *bufalloc == 0 ? 64 : *bufalloc * 2; + nb = realloc (*buf, *bufalloc); + if (nb == NULL) { + nbdkit_error ("%s: malloc: %m", script); + return -1; + } + *buf = nb; + return 0; +} + +/* This is the generic function that calls the script. It can + * optionally write to the script's stdin and read from the script's + * stdout and stderr. It returns the raw error code and does no error + * processing. + */ +static int +call3 (const char *wbuf, size_t wbuflen, /* sent to stdin */ + char **rbuf, size_t *rbuflen, /* read from stdout */ + char **ebuf, size_t *ebuflen, /* read from stderr */ + const char **argv) /* script + parameters */ +{ + pid_t pid = -1; + int status; + int ret = ERROR; + int in_fd[2] = { -1, -1 }; + int out_fd[2] = { -1, -1 }; + int err_fd[2] = { -1, -1 }; + size_t rbufalloc, ebufalloc; + struct pollfd pfds[3]; + ssize_t r; + + *rbuf = *ebuf = NULL; + *rbuflen = *ebuflen = 0; + rbufalloc = ebufalloc = 0; + + if (pipe (in_fd) == -1) { + nbdkit_error ("%s: pipe: %m", script); + goto error; + } + if (pipe (out_fd) == -1) { + nbdkit_error ("%s: pipe: %m", script); + goto error; + } + if (pipe (err_fd) == -1) { + nbdkit_error ("%s: pipe: %m", script); + goto error; + } + + pid = fork (); + if (pid == -1) { + nbdkit_error ("%s: fork: %m", script); + goto error; + } + + if (pid == 0) { /* Child. */ + close (in_fd[1]); + close (out_fd[0]); + close (err_fd[0]); + dup2 (in_fd[0], 0); + dup2 (out_fd[1], 1); + dup2 (err_fd[1], 2); + close (in_fd[0]); + close (out_fd[1]); + close (err_fd[1]); + + /* Restore SIGPIPE back to SIG_DFL, since shell can't undo SIG_IGN */ + signal (SIGPIPE, SIG_DFL); + + /* Set $tmpdir for the script. */ + setenv ("tmpdir", tmpdir, 1); + + execvp (argv[0], (char **) argv); + perror (argv[0]); + _exit (EXIT_FAILURE); + } + + /* Parent. */ + close (in_fd[0]); in_fd[0] = -1; + close (out_fd[1]); out_fd[1] = -1; + close (err_fd[1]); err_fd[1] = -1; + + while (out_fd[0] >= 0 || err_fd[0] >= 0) { + pfds[0].fd = in_fd[1]; /* Connected to child stdin. */ + pfds[0].events = wbuflen ? POLLOUT : 0; + pfds[1].fd = out_fd[0]; /* Connected to child stdout. */ + pfds[1].events = POLLIN; + pfds[2].fd = err_fd[0]; /* Connected to child stderr. */ + pfds[2].events = POLLIN; + + if (poll (pfds, 3, -1) == -1) { + if (errno == EINTR || errno == EAGAIN) + continue; + nbdkit_error ("%s: poll: %m", script); + goto error; + } + + /* Write more data to stdin. */ + if (pfds[0].revents & POLLOUT) { + r = write (pfds[0].fd, wbuf, wbuflen); + if (r == -1) { + nbdkit_error ("%s: write: %m", script); + goto error; + } + wbuf += r; + wbuflen -= r; + /* After writing all the data we close the pipe so that + * the reader on the other end doesn't wait for more. + */ + if (wbuflen == 0) { + close (in_fd[1]); + in_fd[1] = -1; /* poll will ignore this fd */ + } + } + + /* Check stdout. */ + if (pfds[1].revents & POLLIN) { + if (expand_buf (rbuf, rbuflen, &rbufalloc) == -1) + goto error; + r = read (pfds[1].fd, *rbuf + *rbuflen, rbufalloc - *rbuflen); + if (r == -1) { + nbdkit_error ("%s: read: %m", script); + goto error; + } + else if (r == 0) { + close_out: + close (out_fd[0]); + out_fd[0] = -1; /* poll will ignore this fd */ + } + else if (r > 0) + *rbuflen += r; + } + else if (pfds[1].revents & POLLHUP) { + goto close_out; + } + + /* Check stderr. */ + if (pfds[2].revents & POLLIN) { + if (expand_buf (ebuf, ebuflen, &ebufalloc) == -1) + goto error; + r = read (pfds[2].fd, *ebuf + *ebuflen, ebufalloc - *ebuflen); + if (r == -1) { + nbdkit_error ("%s: read: %m", script); + goto error; + } + else if (r == 0) { + close_err: + close (err_fd[0]); + err_fd[0] = -1; /* poll will ignore this fd */ + } + else if (r > 0) + *ebuflen += r; + } + else if (pfds[2].revents & POLLHUP) { + goto close_err; + } + } + + if (waitpid (pid, &status, 0) == -1) { + nbdkit_error ("%s: waitpid: %m", script); + pid = -1; + goto error; + } + pid = -1; + + if (WIFSIGNALED (status)) { + nbdkit_error ("%s: script terminated by signal %d", + script, WTERMSIG (status)); + goto error; + } + + if (WIFSTOPPED (status)) { + nbdkit_error ("%s: script stopped by signal %d", + script, WTERMSIG (status)); + goto error; + } + + /* \0-terminate both read buffers (for convenience). */ + if (expand_buf (rbuf, rbuflen, &rbufalloc) == -1) + goto error; + if (expand_buf (ebuf, ebuflen, &ebufalloc) == -1) + goto error; + (*rbuf)[*rbuflen] = '\0'; + (*ebuf)[*ebuflen] = '\0'; + + ret = WEXITSTATUS (status); + + error: + if (in_fd[0] >= 0) + close (in_fd[0]); + if (in_fd[1] >= 0) + close (in_fd[1]); + if (out_fd[0] >= 0) + close (out_fd[0]); + if (out_fd[1] >= 0) + close (out_fd[1]); + if (err_fd[0] >= 0) + close (err_fd[0]); + if (err_fd[1] >= 0) + close (err_fd[1]); + if (pid >= 0) + waitpid (pid, NULL, 0); + + return ret; +} + +static void +handle_script_error (char *ebuf, size_t len) +{ + int err; + size_t skip; + char *p; + + if (strcmp (ebuf, "EPERM ") == 0) { + err = EPERM; + skip = 6; + } + else if (strcmp (ebuf, "EIO ") == 0) { + err = EIO; + skip = 4; + } + else if (strcmp (ebuf, "ENOMEM ") == 0) { + err = ENOMEM; + skip = 7; + } + else if (strcmp (ebuf, "EINVAL ") == 0) { + err = EINVAL; + skip = 7; + } + else if (strcmp (ebuf, "ENOSPC ") == 0) { + err = ENOSPC; + skip = 7; + } + else if (strcmp (ebuf, "ESHUTDOWN ") == 0) { + err = ESHUTDOWN; + skip = 10; + } + else { + /* Default to EIO. */ + err = EIO; + skip = 0; + } + + while (len > 0 && ebuf[len-1] == '\n') + ebuf[--len] = '\0'; + + if (len > 0) { + p = strchr (ebuf, '\n'); + if (p) { + /* More than one line, so write the whole message to debug ... */ + nbdkit_debug ("%s: %s", script, ebuf); + /* ... but truncate it for the error message below. */ + *p = '\0'; + } + if (strlen (ebuf) >= skip) + ebuf += skip; + nbdkit_error ("%s: %s", script, ebuf); + } + else + nbdkit_error ("%s: script exited with error, " + "but did not print an error message on stderr", script); + + /* Set errno. */ + errno = err; +} + +/* Call the script with parameters. Don't write to stdin or read from + * stdout, but handle stderr if an error occurs. Returns the exit + * code from the script. + */ +exit_code +call (const char **argv) +{ + int r; + char *rbuf; + size_t rbuflen; + char *ebuf; + size_t ebuflen; + + r = call3 (NULL, 0, &rbuf, &rbuflen, &ebuf, &ebuflen, argv); + switch (r) { + case OK: + case MISSING: + case RET_FALSE: + /* Script successful. */ + free (rbuf); + free (ebuf); + return r; + + case ERROR: + default: + /* Error case. */ + free (rbuf); + handle_script_error (ebuf, ebuflen); + free (ebuf); + return ERROR; + } +} + +/* Call the script with parameters. Read from stdout and return the + * buffer. Returns the exit code from the script. + */ +exit_code +call_read (char **rbuf, size_t *rbuflen, const char **argv) +{ + int r; + char *ebuf; + size_t ebuflen; + + r = call3 (NULL, 0, rbuf, rbuflen, &ebuf, &ebuflen, argv); + switch (r) { + case OK: + case MISSING: + case RET_FALSE: + /* Script successful. */ + free (ebuf); + return r; + + case ERROR: + default: + /* Error case. */ + free (*rbuf); + *rbuf = NULL; + handle_script_error (ebuf, ebuflen); + free (ebuf); + return ERROR; + } +} + +/* Call the script with parameters. Write to stdin of the script. + * Returns the exit code from the script. + */ +exit_code +call_write (const char *wbuf, size_t wbuflen, const char **argv) +{ + int r; + char *rbuf; + size_t rbuflen; + char *ebuf; + size_t ebuflen; + + r = call3 (wbuf, wbuflen, &rbuf, &rbuflen, &ebuf, &ebuflen, argv); + switch (r) { + case OK: + case MISSING: + case RET_FALSE: + /* Script successful. */ + free (rbuf); + free (ebuf); + return r; + + case ERROR: + default: + /* Error case. */ + free (rbuf); + handle_script_error (ebuf, ebuflen); + free (ebuf); + return ERROR; + } +} diff --git a/plugins/sh/call.h b/plugins/sh/call.h new file mode 100644 index 0000000..d657f1f --- /dev/null +++ b/plugins/sh/call.h @@ -0,0 +1,55 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_CALL_H +#define NBDKIT_CALL_H + +/* Exit codes. */ +typedef enum exit_code { + OK = 0, + ERROR = 1, /* all script error codes are mapped to this */ + MISSING = 2, /* method missing */ + RET_FALSE = 3 /* script exited with code 3 meaning false */ +} exit_code; + +extern exit_code call (const char **argv) + __attribute__((__nonnull__ (1))); +extern exit_code call_read (char **rbuf, size_t *rbuflen, const char **argv) + __attribute__((__nonnull__ (1, 2, 3))); +extern exit_code call_write (const char *wbuf, size_t wbuflen, + const char **argv) + __attribute__((__nonnull__ (1, 3))); + +extern char tmpdir[]; +extern char *script; + +#endif /* NBDKIT_CALL_H */ diff --git a/plugins/sh/example.sh b/plugins/sh/example.sh new file mode 100755 index 0000000..63228c8 --- /dev/null +++ b/plugins/sh/example.sh @@ -0,0 +1,141 @@ +#!/usr/bin/env bash +# +# Example Bash plugin. +# +# This example can be freely used for any purpose. +# +# Run it from the build directory like this: +# +# ./nbdkit -f -v sh ./plugins/sh/example.sh file=disk.img +# +# Or run it after installing nbdkit like this: +# +# nbdkit -f -v sh ./plugins/sh/example.sh file=disk.img +# +# The -f -v arguments are optional. They cause the server to stay in +# the foreground and print debugging, which is useful when testing. +# +# You can connect to the server using guestfish or qemu, eg: +# +# guestfish --format=raw -a nbd://localhost +# > run +# > list-filesystems +# > mount /dev/sda1 / + +# Note that the exit code of the script matters: +# 0 => OK +# 1 => Error +# 2 => Method is missing +# 3 => False +# For other values, see the nbdkit-sh-plugin(3) manual page. + +# Check we're being run from nbdkit. +# +# Because the script has to be executable (for nbdkit to run it) there +# is a danger that someone could run the script standalone which won't +# work. Use two tests to try to make sure we are run from nbdkit: +# +# - $tmpdir is set to a random, empty directory by nbdkit. Note the +# contents are deleted when nbdkit exits. +# +# - $1 is set (to a method name). +if [ ! -d $tmpdir ] || [ "x$1" = "x" ]; then + echo "$0: this script must be run from nbdkit" >&2 + echo "Use ‘nbdkit sh $0’" >&2 + exit 1 +fi + +# We make a symlink to the file in the tmpdir directory. +f=$tmpdir/file + +case "$1" in + dump_plugin) + # This is called from: nbdkit sh example.sh --dump-plugin + echo "example_sh=1" + ;; + + config) + # We expect a file=... parameter pointing to the file to serve. + if [ "$2" = "file" ]; then + if [ ! -r "$3" ]; then + echo "file $3 does not exist or is not readable" >&2 + exit 1 + fi + ln -sf "$(realpath "$3")" $f + else + echo "unknown parameter $2=$3" >&2 + exit 1 + fi + ;; + + config_complete) + # Check the file parameter was passed. + if [ ! -L $f ]; then + echo "file parameter missing" >&2 + exit 1 + fi + ;; + + open) + # Open a new client connection. + + # Create a directory to store per-connection state. The + # directory name is printed out by the mktemp command, that + # output is captured by nbdkit, and it is passed back as the + # handle parameter ($2) in subsequent calls below. + # + # You can use this directory to store per-connection state, + # and it along with everything in $tmpdir is cleaned up by + # nbdkit on exit. + # + # (This plugin does not actually use per-connection state, + # it's just an example.) + mktemp -d $tmpdir/handle-XXXXXX + ;; + + get_size) + # Print the disk size on stdout. + stat -L -c '%s' $f || exit 1 + ;; + + pread) + # Read the requested part of the disk and write to stdout. + dd iflag=skip_bytes,count_bytes skip=$4 count=$3 if=$f || exit 1 + ;; + + pwrite) + # Copy data from stdin and write it to the disk. + dd oflag=seek_bytes conv=notrunc seek=$4 of=$f || exit 1 + ;; + + can_write) + # If we provide a pwrite method, we must provide this method + # (and similarly for flush and trim). See nbdkit-sh-plugin(3) + # for details. This will exit 0 (below) which means true. + # Use ‘exit 3’ if false. + ;; + + trim) + # Punch a hole in the backing file, if supported. + fallocate -p -o $4 -l $3 -n $f || exit 1 + ;; + can_trim) + # We can trim if the fallocate command exists. + fallocate --help >/dev/null 2>&1 || exit 3 + ;; + + zero) + # Efficiently zero the backing file, if supported. + fallocate -z -o $4 -l $3 -n $f || exit 1 + ;; + can_zero) + # We can efficiently zero if the fallocate command exists. + fallocate --help >/dev/null 2>&1 || exit 3 + ;; + + *) + # Unknown methods must exit with code 2. + exit 2 +esac + +exit 0 diff --git a/plugins/sh/nbdkit-sh-plugin.pod b/plugins/sh/nbdkit-sh-plugin.pod new file mode 100644 index 0000000..8af88b4 --- /dev/null +++ b/plugins/sh/nbdkit-sh-plugin.pod @@ -0,0 +1,368 @@ +=head1 NAME + +nbdkit-sh-plugin - nbdkit shell, script or executable plugin + +=head1 SYNOPSIS + + nbdkit sh /path/to/script [arguments...] + + nbdkit sh - <<'EOF' + ... shell script ... + EOF + +=head1 DESCRIPTION + +C allows you to write plugins for L using +arbitrary scripting languages, including shells like L, +L, L, L etc., other scripting environments, +or any executable. Note if you want to use an established scripting +language like Perl or Python, then nbdkit has specific plugins to +handle those languages and those will be more efficient (see +L for a complete list). + +=head2 If you have been given an nbdkit sh plugin + +Assuming you have a shell script which is an nbdkit plugin, you run it +like this: + + nbdkit sh /path/to/script + +You may have to add further C arguments to the command +line. The script must be executable (C). + +=head2 Inline shell scripts + +It is also possible to write a shell script plugin "inline" using C<-> +as the name of the script, like this: + + nbdkit sh - <<'EOF' + case "$1" in + get_size) echo 1M ;; + pread) dd if=/dev/zero count=$3 iflag=count_bytes ;; + *) exit 2 ;; + esac + EOF + +By default the inline script runs under F. You can add a +shebang (C<#!>) to use other scripting languages. + +=head1 WRITING AN NBDKIT SH PLUGIN + +For an example plugin written in Bash, see: +L + +Broadly speaking, nbdkit shell plugins work like C ones, so you should +read L first. + +=head2 Programming model + +This plugin has a simple programming model: For every plugin method +that needs to be called, the external script is invoked with +parameters describing the method and its arguments. The first +parameter is always the method name. For example: + + /path/to/script config file disk.img + │ │ │ + │ │ └─ value ($3) + │ └── key ($2) + method ($1) + + /path/to/script pread + │ │ │ │ + │ │ │ └─ offset in bytes ($4) + │ │ └── request size in bytes ($3) + method ($1) └── handle ($2) ─ see "Handles" below + +=head2 Exit codes + +The script should exit with specific exit codes: + +=over 4 + +=item S<0> + +The method was executed successfully. + +=item 1 and 8-127 + +There was an error. The script may print on stderr an errno and a +message, for example: + + ENOSPC Out of space + +If the script doesn't print anything or the output cannot be parsed +then nbdkit assumes error C. + +=item S<2> + +The requested method is not supported by the script. + +=item S<3> + +For methods which return booleans, this code indicates false. + +=item 4, 5, 6, 7 + +These exit codes are reserved for future use. + +=back + +=head2 Temporary directory + +A fresh script is invoked for each method call (ie. scripts are +stateless), so if the script needs to store state it has to store it +somewhere in the filesystem in a format and location which is left up +to the author of the script. + +However nbdkit helps by creating a randomly named, empty directory for +the script. This directory persists for the lifetime of nbdkit and is +deleted when nbdkit exits. The name of the directory is passed to +each script invocation in the C<$tmpdir> environment variable. + +=head2 Handles + +Handles are arbitrary strings, but it is best to limit them to short +alphanumeric strings. + +=head3 Per-connection state + +The temporary directory described above can be used for state for the +lifetime of the nbdkit instance (across multiple connections). If you +want to store state per connection then one way to do it is to create +a randomly named subdirectory under the temporary directory: + + case "$1" in + ... + open) + mktemp -d $tmpdir/handle-XXXXXX ;; + +The handle will be the subdirectory name, returned to the script as +C<$2> in all connected calls (eg. C, C). You can +delete the subdirectory explicitly in C: + + case "$1" in + ... + close) + rm -rf "$2" ;; + +or rely on nbdkit deleting the whole temporary directory including all +per-handle subdirectories when it exits. + +=head2 Methods + +This just documents the arguments to the script corresponding to each +plugin method, and any way that they differ from the C callbacks. In +all other respects they work the same way as the C callbacks, so you +should go and read L. + +=over 4 + +=item C + + /path/to/script load + +=item C + + /path/to/script unload + +This is called just before nbdkit exits. Errors from this method are +ignored. + +=item C + + /path/to/script dump_plugin + +=item C + + /path/to/script config + +=item C + + /path/to/script config_complete + +=item C + + /path/to/script open + +The C parameter will be C or C. + +On success this should print the handle (any string) on stdout and +exit with code C<0>. If the handle ends with a newline character then +the newline is removed. + +Unlike C plugins, this method is I required. If omitted then the +handle will be C<""> (empty string). + +=item C + + /path/to/script close + +=item C + + /path/to/script get_size + +The script should print the size of the disk image on stdout. You can +print the size in bytes, or use any format understood by +C such as C<1M> (see +L). + +This method is required. + +=item C + +=item C + +=item C + +=item C + +=item C + +Unlike in other languages, you B provide the C methods +otherwise they are assumed to all return false and your C, +C, C, C and C methods will never be +called. The reason for this is obscure: In other languages we can +detect if (eg) a C method is defined and synthesize an +appropriate response if no actual C method is defined. +However detecting if methods are present without running them is not +possible with this plugin. + + /path/to/script can_write + /path/to/script can_flush + /path/to/script can_trim + /path/to/script can_zero + /path/to/script can_extents + +The script should exit with code C<0> for true or code C<3> for false. + +=item C + + /path/to/script is_rotational + +The script should exit with code C<0> for true or code C<3> for false. + +=item C + + /path/to/script can_fua + +This controls Forced Unit Access (FUA) behaviour of the core server. + +Unlike the other C callbacks, this one is I a boolean. It +must print either "none", "emulate" or "native" to stdout. The +meaning of these is described in L. + +=item C + + /path/to/script can_multi_conn + +The script should exit with code C<0> for true or code C<3> for false. + +=item C + + /path/to/script pread + +The script should print the requested binary data on stdout. Exactly +C bytes must be printed. + +This method is required. + +=item C + + /path/to/script pwrite + +The script should read the binary data to be written from stdin. + +The C parameter can be an empty string or C<"fua">. In the +future, a comma-separated list of flags may be present. + +Unlike in other languages, if you provide a C method you +B also provide a C method which exits with code C<0> +(true). + +=item C + + /path/to/script flush + +Unlike in other languages, if you provide a C method you +B also provide a C method which exits with code C<0> +(true). + +=item C + + /path/to/script trim + +The C parameter can be an empty string or C<"fua">. In the +future, a comma-separated list of flags may be present. + +Unlike in other languages, if you provide a C method you B +also provide a C method which exits with code C<0> (true). + +=item C + + /path/to/script zero + +The C parameter can be an empty string or a comma-separated +list of the flags: C<"fua"> and C<"may_trim"> (eg. C<"">, C<"fua">, +C<"fua,may_trim"> are all possible values). + +Unlike in other languages, if you provide a C method you B +also provide a C method which exits with code C<0> (true). + +=item C + + /path/to/script extents + +The C parameter can be an empty string or C<"req_one">. + +This must print, one per line on stdout, a list of one or more extents +in the format: + + offset length type + +which correspond to the inputs of the C C function +(see L). The C and C fields may use +any format understood by C. The optional C +field may be an integer, missing (same as 0), or a comma-separated +list of the words C and C. An example of a valid set of +extents covering a C<10M> disk where the first megabyte only is +allocated data: + + 0 1M + 1M 9M hole,zero + +Unlike in other languages, if you provide an C method you +B also provide a C method which exits with code +C<0> (true). + +=back + +=head2 Missing callbacks + +=over 4 + +=item Missing: C, C, C, +C, C + +These are not yet supported. + +=back + +=head2 Threads + +The thread model for scripts currently cannot be set from this plugin. +It is hard-coded in the C part to +C. This may change or be +settable in future. + +=head1 SEE ALSO + +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/plugins/sh/sh.c b/plugins/sh/sh.c new file mode 100644 index 0000000..89ec47e --- /dev/null +++ b/plugins/sh/sh.c @@ -0,0 +1,846 @@ +/* nbdkit + * Copyright (C) 2018-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#define NBDKIT_API_VERSION 2 + +#include + +#include "call.h" + +char tmpdir[] = "/tmp/nbdkitshXXXXXX"; +char *script; + +static void +sh_load (void) +{ + /* Create the temporary directory for the shell script to use. */ + if (mkdtemp (tmpdir) == NULL) { + nbdkit_error ("mkdtemp: /tmp: %m"); + exit (EXIT_FAILURE); + } + nbdkit_debug ("sh: load: tmpdir: %s", tmpdir); +} + +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wunused-result" +static void +sh_unload (void) +{ + const size_t tmpdir_len = strlen (tmpdir); + char cmd[7 + tmpdir_len + 1]; /* "rm -rf " + tmpdir + \0 */ + + /* Run the unload method. Ignore all errors. */ + if (script) { + const char *args[] = { script, "unload", NULL }; + + call (args); + } + + /* Delete the temporary directory. Ignore all errors. */ + snprintf (cmd, sizeof cmd, "rm -rf %s", tmpdir); + system (cmd); + + free (script); +} +#pragma GCC diagnostic pop + +static void +sh_dump_plugin (void) +{ + const char *args[] = { script, "dump_plugin", NULL }; + char *o; + size_t olen; + + if (script) { + /* Call dump_plugin method. */ + switch (call_read (&o, &olen, args)) { + case OK: + printf ("%s", o); + free (o); + break; + + case MISSING: + /* Ignore if the method was missing. */ + break; + + case ERROR: + free (o); + break; + + case RET_FALSE: + nbdkit_error ("%s: %s method returned unexpected code (3/false)", + script, "dump_plugin"); + errno = EIO; + return; + + default: abort (); + } + } +} + +/* This implements the "inline script" feature. Read stdin into a + * temporary file and return the name of the file which the caller + * must free. For convenience we put the temporary file into tmpdir + * but that's an implementation detail. + */ +static char * +inline_script (void) +{ + const char scriptname[] = "inline-script.sh"; + char *filename = NULL; + char *cmd = NULL; + + if (asprintf (&filename, "%s/%s", tmpdir, scriptname) == -1) { + nbdkit_error ("asprintf: %m"); + goto err; + } + + /* Safe because both the tmpdir and script name are controlled by us + * and don't contain characters that need quoting. + */ + if (asprintf (&cmd, "cat > %s", filename) == -1) { + nbdkit_error ("asprintf: %m"); + goto err; + } + + if (system (cmd) != 0) { + nbdkit_error ("sh: failed to copy inline script to temporary file"); + goto err; + } + + if (chmod (filename, 0500) == -1) { + nbdkit_error ("chmod: %s: %m", filename); + goto err; + } + + free (cmd); + return filename; + + err: + free (filename); + free (cmd); + return NULL; +} + +static int +sh_config (const char *key, const char *value) +{ + if (!script) { + /* The first parameter MUST be "script". */ + if (strcmp (key, "script") != 0) { + nbdkit_error ("the first parameter must be script=/path/to/script"); + return -1; + } + + /* If the script name is not "-" then it's expected to be a + * filename, otherwise it's an inline script which must be read + * into a temporary file. Either way we want an absolute path. + */ + if (strcmp (value, "-") != 0) + script = nbdkit_realpath (value); + else + script = inline_script (); + if (script == NULL) + return -1; + + /* Call the load method. */ + const char *args[] = { script, "load", NULL }; + switch (call (args)) { + case OK: + case MISSING: + break; + + case ERROR: + return -1; + + case RET_FALSE: + nbdkit_error ("%s: %s method returned unexpected code (3/false)", + script, "load"); + errno = EIO; + return -1; + + default: abort (); + } + } + else { + const char *args[] = { script, "config", key, value, NULL }; + + switch (call (args)) { + case OK: + return 0; + + case MISSING: + /* Emulate what core nbdkit does if a config callback is NULL. */ + nbdkit_error ("%s: this plugin does not need command line configuration", + script); + return -1; + + case ERROR: + return -1; + + case RET_FALSE: + nbdkit_error ("%s: %s method returned unexpected code (3/false)", + script, "config"); + errno = EIO; + return -1; + + default: abort (); + } + } + + return 0; +} + +static int +sh_config_complete (void) +{ + const char *args[] = { script, "config_complete", NULL }; + + if (!script) { + nbdkit_error ("missing script parameter"); + return -1; + } + + switch (call (args)) { + case OK: + case MISSING: + return 0; + + case ERROR: + return -1; + + case RET_FALSE: + nbdkit_error ("%s: %s method returned unexpected code (3/false)", + script, "config_complete"); + errno = EIO; + return -1; + + default: abort (); + } +} + +static void * +sh_open (int readonly) +{ + char *h = NULL; + size_t hlen; + const char *args[] = { script, "open", readonly ? "true" : "false", NULL }; + + /* We store the string returned by open in the handle. */ + switch (call_read (&h, &hlen, args)) { + case OK: + /* Remove final newline if present. */ + if (hlen > 0 && h[hlen-1] == '\n') { + h[hlen-1] = '\0'; + hlen--; + } + if (hlen > 0) + nbdkit_debug ("sh: handle: %s", h); + return h; + + case MISSING: + /* Unlike regular C plugins, open is not required. If it is + * missing then we return "" as the handle. Allocate a new string + * for it because we don't know what call_read returned here. + */ + free (h); + h = strdup (""); + if (h == NULL) + nbdkit_error ("strdup: %m"); + return h; + + case ERROR: + free (h); + return NULL; + + case RET_FALSE: + free (h); + nbdkit_error ("%s: %s method returned unexpected code (3/false)", + script, "open"); + errno = EIO; + return NULL; + + default: abort (); + } +} + +static void +sh_close (void *handle) +{ + char *h = handle; + const char *args[] = { script, "close", h, NULL }; + + switch (call (args)) { + case OK: + case MISSING: + case ERROR: + case RET_FALSE: + free (h); + return; + default: abort (); + } +} + +static int64_t +sh_get_size (void *handle) +{ + char *h = handle; + const char *args[] = { script, "get_size", h, NULL }; + char *s = NULL; + size_t slen; + int64_t r; + + switch (call_read (&s, &slen, args)) { + case OK: + if (slen > 0 && s[slen-1] == '\n') + s[slen-1] = '\0'; + r = nbdkit_parse_size (s); + if (r == -1) + nbdkit_error ("%s: could not parse output from get_size method: %s", + script, s); + free (s); + return r; + + case MISSING: + free (s); + nbdkit_error ("%s: the get_size method is required", script); + return -1; + + case ERROR: + free (s); + return -1; + + case RET_FALSE: + free (s); + nbdkit_error ("%s: %s method returned unexpected code (3/false)", + script, "get_size"); + errno = EIO; + return -1; + + default: abort (); + } +} + +static int +sh_pread (void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags) +{ + char *h = handle; + char cbuf[32], obuf[32]; + const char *args[] = { script, "pread", h, cbuf, obuf, NULL }; + char *data = NULL; + size_t len; + + snprintf (cbuf, sizeof cbuf, "%" PRIu32, count); + snprintf (obuf, sizeof obuf, "%" PRIu64, offset); + + switch (call_read (&data, &len, args)) { + case OK: + if (count != len) { + nbdkit_error ("%s: incorrect amount of data read: " + "expecting %" PRIu32 " bytes but " + "received %zu bytes from the script", + script, count, len); + free (data); + return -1; + } + memcpy (buf, data, count); + free (data); + return 0; + + case MISSING: + free (data); + nbdkit_error ("%s: the pread method is required", script); + return -1; + + case ERROR: + free (data); + return -1; + + case RET_FALSE: + free (data); + nbdkit_error ("%s: %s method returned unexpected code (3/false)", + script, "pread"); + errno = EIO; + return -1; + + default: abort (); + } +} + +/* Convert NBDKIT_FLAG_* to flags string. */ +static void flag_append (const char *str, bool *comma, char **buf, size_t *len); + +static void +flags_string (uint32_t flags, char *buf, size_t len) +{ + bool comma = false; + + if (flags & NBDKIT_FLAG_FUA) + flag_append ("fua", &comma, &buf, &len); + + if (flags & NBDKIT_FLAG_MAY_TRIM) + flag_append ("may_trim", &comma, &buf, &len); + + if (flags & NBDKIT_FLAG_REQ_ONE) + flag_append ("req_one", &comma, &buf, &len); +} + +static void +flag_append (const char *str, bool *comma, char **buf, size_t *len) +{ + size_t slen = strlen (str); + + if (*comma) { + /* Too short flags buffer is an internal error so abort. */ + if (*len <= 1) abort (); + strcpy (*buf, ","); + (*buf)++; + (*len)--; + } + + if (*len <= slen) abort (); + strcpy (*buf, str); + (*buf) += slen; + (*len) -= slen; + + *comma = true; +} + +static int +sh_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset, + uint32_t flags) +{ + char *h = handle; + char cbuf[32], obuf[32], fbuf[32]; + const char *args[] = { script, "pwrite", h, cbuf, obuf, fbuf, NULL }; + + snprintf (cbuf, sizeof cbuf, "%" PRIu32, count); + snprintf (obuf, sizeof obuf, "%" PRIu64, offset); + flags_string (flags, fbuf, sizeof fbuf); + + switch (call_write (buf, count, args)) { + case OK: + return 0; + + case MISSING: + nbdkit_error ("pwrite not implemented"); + return -1; + + case ERROR: + return -1; + + case RET_FALSE: + nbdkit_error ("%s: %s method returned unexpected code (3/false)", + script, "pwrite"); + errno = EIO; + return -1; + + default: abort (); + } +} + +/* Common code for handling all boolean methods like can_write etc. */ +static int +boolean_method (void *handle, const char *method_name) +{ + char *h = handle; + const char *args[] = { script, method_name, h, NULL }; + + switch (call (args)) { + case OK: /* true */ + return 1; + case RET_FALSE: /* false */ + return 0; + case MISSING: /* missing => assume false */ + return 0; + case ERROR: /* error cases */ + return -1; + default: abort (); + } +} + +static int +sh_can_write (void *handle) +{ + return boolean_method (handle, "can_write"); +} + +static int +sh_can_flush (void *handle) +{ + return boolean_method (handle, "can_flush"); +} + +static int +sh_is_rotational (void *handle) +{ + return boolean_method (handle, "is_rotational"); +} + +static int +sh_can_trim (void *handle) +{ + return boolean_method (handle, "can_trim"); +} + +static int +sh_can_zero (void *handle) +{ + return boolean_method (handle, "can_zero"); +} + +static int +sh_can_extents (void *handle) +{ + return boolean_method (handle, "can_extents"); +} + +/* Not a boolean method, the method prints "none", "emulate" or "native". */ +static int +sh_can_fua (void *handle) +{ + char *h = handle; + const char *args[] = { script, "can_fua", h, NULL }; + char *s = NULL; + size_t slen; + int r; + + switch (call_read (&s, &slen, args)) { + case OK: + if (slen > 0 && s[slen-1] == '\n') + s[slen-1] = '\0'; + if (strcasecmp (s, "none") == 0) + r = NBDKIT_FUA_NONE; + else if (strcasecmp (s, "emulate") == 0) + r = NBDKIT_FUA_EMULATE; + else if (strcasecmp (s, "native") == 0) + r = NBDKIT_FUA_NATIVE; + else { + nbdkit_error ("%s: could not parse output from can_fua method: %s", + script, s); + r = -1; + } + free (s); + return r; + + case MISSING: + free (s); + /* NBDKIT_FUA_EMULATE means that nbdkit will call .flush. However + * we cannot know if that callback exists, so the safest default + * is to return NBDKIT_FUA_NONE. + */ + return NBDKIT_FUA_NONE; + + case ERROR: + free (s); + return -1; + + case RET_FALSE: + free (s); + nbdkit_error ("%s: %s method returned unexpected code (3/false)", + script, "can_fua"); + errno = EIO; + return -1; + + default: abort (); + } +} + +static int +sh_can_multi_conn (void *handle) +{ + return boolean_method (handle, "can_multi_conn"); +} + +static int +sh_flush (void *handle, uint32_t flags) +{ + char *h = handle; + const char *args[] = { script, "flush", h, NULL }; + + switch (call (args)) { + case OK: + return 0; + + case MISSING: + /* Ignore lack of flush callback. */ + return 0; + + case ERROR: /* error cases */ + return -1; + + case RET_FALSE: + nbdkit_error ("%s: %s method returned unexpected code (3/false)", + script, "flush"); + errno = EIO; + return -1; + + default: abort (); + } +} + +static int +sh_trim (void *handle, uint32_t count, uint64_t offset, uint32_t flags) +{ + char *h = handle; + char cbuf[32], obuf[32], fbuf[32]; + const char *args[] = { script, "trim", h, cbuf, obuf, fbuf, NULL }; + + snprintf (cbuf, sizeof cbuf, "%" PRIu32, count); + snprintf (obuf, sizeof obuf, "%" PRIu64, offset); + flags_string (flags, fbuf, sizeof fbuf); + + switch (call (args)) { + case OK: + return 0; + + case MISSING: + /* Ignore lack of trim callback. */ + return 0; + + case ERROR: + return -1; + + case RET_FALSE: + nbdkit_error ("%s: %s method returned unexpected code (3/false)", + script, "trim"); + errno = EIO; + return -1; + + default: abort (); + } +} + +static int +sh_zero (void *handle, uint32_t count, uint64_t offset, uint32_t flags) +{ + char *h = handle; + char cbuf[32], obuf[32], fbuf[32]; + const char *args[] = { script, "zero", h, cbuf, obuf, fbuf, NULL }; + + snprintf (cbuf, sizeof cbuf, "%" PRIu32, count); + snprintf (obuf, sizeof obuf, "%" PRIu64, offset); + flags_string (flags, fbuf, sizeof fbuf); + + switch (call (args)) { + case OK: + return 0; + + case MISSING: + nbdkit_debug ("zero falling back to pwrite"); + errno = EOPNOTSUPP; + return -1; + + case ERROR: + return -1; + + case RET_FALSE: + nbdkit_error ("%s: %s method returned unexpected code (3/false)", + script, "zero"); + errno = EIO; + return -1; + + default: abort (); + } +} + +static int +parse_extents (const char *s, size_t slen, struct nbdkit_extents *extents) +{ + FILE *fp = NULL; + char *line = NULL; + size_t linelen = 0; + ssize_t len; + int ret = -1; + + fp = fmemopen ((void *) s, slen, "r"); + if (!fp) { + nbdkit_error ("%s: extents: fmemopen: %m", script); + goto out; + } + + while ((len = getline (&line, &linelen, fp)) != -1) { + const char *delim = " \t"; + char *sp, *p; + int64_t offset, length; + uint32_t type; + + if (len > 0 && line[len-1] == '\n') { + line[len-1] = '\0'; + len--; + } + + if ((p = strtok_r (line, delim, &sp)) == NULL) { + parse_error: + nbdkit_error ("%s: extents: cannot parse %s", script, line); + goto out; + } + offset = nbdkit_parse_size (p); + if (offset == -1) + goto out; + + if ((p = strtok_r (NULL, delim, &sp)) == NULL) + goto parse_error; + length = nbdkit_parse_size (p); + if (length == -1) + goto out; + + if ((p = strtok_r (NULL, delim, &sp)) == NULL) + /* empty type field means allocated data (0) */ + type = 0; + else if (sscanf (p, "%" SCNu32, &type) == 1) + ; + else { + type = 0; + if (strstr (p, "hole") != NULL) + type |= NBDKIT_EXTENT_HOLE; + if (strstr (p, "zero") != NULL) + type |= NBDKIT_EXTENT_ZERO; + } + + nbdkit_debug ("%s: adding extent %" PRIi64 " %" PRIi64 " %" PRIu32, + script, offset, length, type); + if (nbdkit_add_extent (extents, offset, length, type) == -1) + goto out; + } + + ret = 0; + + out: + free (line); + if (fp) + fclose (fp); + return ret; +} + +static int +sh_extents (void *handle, uint32_t count, uint64_t offset, uint32_t flags, + struct nbdkit_extents *extents) +{ + char *h = handle; + char cbuf[32], obuf[32], fbuf[32]; + const char *args[] = { script, "extents", h, cbuf, obuf, fbuf, NULL }; + char *s = NULL; + size_t slen; + int r; + + snprintf (cbuf, sizeof cbuf, "%" PRIu32, count); + snprintf (obuf, sizeof obuf, "%" PRIu64, offset); + flags_string (flags, fbuf, sizeof fbuf); + + switch (call_read (&s, &slen, args)) { + case OK: + r = parse_extents (s, slen, extents); + free (s); + return r; + + case MISSING: + /* extents method should not have been called unless the script + * defined a can_extents method which returns true, so if this + * happens it's a script error. + */ + free (s); + nbdkit_error ("%s: can_extents returned true, " + "but extents method is not defined", + script); + errno = EIO; + return -1; + + case ERROR: + free (s); + return -1; + + case RET_FALSE: + free (s); + nbdkit_error ("%s: %s method returned unexpected code (3/false)", + script, "can_fua"); + errno = EIO; + return -1; + + default: abort (); + } +} + +#define sh_config_help \ + "script= (required) The shell script to run.\n" \ + "[other arguments may be used by the plugin that you load]" + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS + +static struct nbdkit_plugin plugin = { + .name = "sh", + .version = PACKAGE_VERSION, + .load = sh_load, + .unload = sh_unload, + + .dump_plugin = sh_dump_plugin, + + .config = sh_config, + .config_complete = sh_config_complete, + .config_help = sh_config_help, + + .open = sh_open, + .close = sh_close, + + .get_size = sh_get_size, + .can_write = sh_can_write, + .can_flush = sh_can_flush, + .is_rotational = sh_is_rotational, + .can_trim = sh_can_trim, + .can_zero = sh_can_zero, + .can_extents = sh_can_extents, + .can_fua = sh_can_fua, + .can_multi_conn = sh_can_multi_conn, + + .pread = sh_pread, + .pwrite = sh_pwrite, + .flush = sh_flush, + .trim = sh_trim, + .zero = sh_zero, + .extents = sh_extents, + + .errno_is_preserved = 1, +}; + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/plugins/split/Makefile.am b/plugins/split/Makefile.am new file mode 100644 index 0000000..c50a388 --- /dev/null +++ b/plugins/split/Makefile.am @@ -0,0 +1,60 @@ +# nbdkit +# Copyright (C) 2017 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-split-plugin.pod + +plugin_LTLIBRARIES = nbdkit-split-plugin.la + +nbdkit_split_plugin_la_SOURCES = \ + split.c \ + $(top_srcdir)/include/nbdkit-plugin.h + +nbdkit_split_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/include +nbdkit_split_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_split_plugin_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms + +if HAVE_POD + +man_MANS = nbdkit-split-plugin.1 +CLEANFILES += $(man_MANS) + +nbdkit-split-plugin.1: nbdkit-split-plugin.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/plugins/split/Makefile.in b/plugins/split/Makefile.in new file mode 100644 index 0000000..4d7322f --- /dev/null +++ b/plugins/split/Makefile.in @@ -0,0 +1,879 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2017 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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$(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/plugins/split/nbdkit-split-plugin.pod b/plugins/split/nbdkit-split-plugin.pod new file mode 100644 index 0000000..0341f13 --- /dev/null +++ b/plugins/split/nbdkit-split-plugin.pod @@ -0,0 +1,86 @@ +=head1 NAME + +nbdkit-split-plugin - nbdkit plugin to concatenate split files into one disk + +=head1 SYNOPSIS + + nbdkit split [file=]file1 [[file=]file2 [file=]file3 ...] + +=head1 DESCRIPTION + +C is a file plugin for L. One or more +filenames may be given using the C parameter. These +files are logically concatenated into a single disk image. + +If you want to add a virtual partition table, see +L. + +=head2 Differences from nbdkit-file-plugin + +Normally to serve a single file you should use +L. This plugin differs from nbdkit-file-plugin +as follows: + +=over 4 + +=item * + +nbdkit-file-plugin is faster and more efficient. It has a fully +parallel implementation, and does not have to deal with the complexity +of locating the correct file to serve or splitting requests across +files. + +=item * + +nbdkit-file-plugin allows you to resize the underlying file +dynamically. The underlying files must B be resized when using +the split plugin. + +=item * + +nbdkit-file-plugin can handle block devices, but the split plugin can +only handle plain files. + +=item * + +nbdkit-file-plugin handles writes of blocks of zeroes efficiently, but +the split plugin cannot. + +=item * + +nbdkit-file-plugin can "punch holes" in the backing file in response +to a trim request from the client, but the split plugin does not +support this. + +=back + +=head1 PARAMETERS + +=over 4 + +=item [B]FILENAME + +One or more files to open. They are logically concatenated in +the order they appear on the command line. + +This parameter must appear at least once. + +C is a magic config key and may be omitted in most cases. +See L. + +=back + +=head1 SEE ALSO + +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2017 Red Hat Inc. diff --git a/plugins/split/split.c b/plugins/split/split.c new file mode 100644 index 0000000..cf2b2c7 --- /dev/null +++ b/plugins/split/split.c @@ -0,0 +1,298 @@ +/* nbdkit + * Copyright (C) 2017-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#ifndef O_CLOEXEC +#define O_CLOEXEC 0 +#endif + +/* The files. */ +static char **filenames = NULL; +static size_t nr_files = 0; + +static void +split_unload (void) +{ + size_t i; + + for (i = 0; i < nr_files; ++i) + free (filenames[i]); + free (filenames); +} + +static int +split_config (const char *key, const char *value) +{ + char **new_filenames; + + if (strcmp (key, "file") == 0) { + new_filenames = realloc (filenames, (nr_files+1) * sizeof (char *)); + if (new_filenames == NULL) { + nbdkit_error ("malloc: %m"); + return -1; + } + filenames = new_filenames; + filenames[nr_files] = nbdkit_realpath (value); + if (filenames[nr_files] == NULL) + return -1; + nr_files++; + } + else { + nbdkit_error ("unknown parameter '%s'", key); + return -1; + } + + return 0; +} + +#define split_config_help \ + "file= (required) File(s) to serve." + +/* The per-connection handle. */ +struct handle { + struct file *files; + uint64_t size; /* Total concatenated size. */ +}; + +struct file { + uint64_t offset, size; + int fd; +}; + +/* Create the per-connection handle. */ +static void * +split_open (int readonly) +{ + struct handle *h; + int flags; + size_t i; + uint64_t offset; + struct stat statbuf; + + h = malloc (sizeof *h); + if (h == NULL) { + nbdkit_error ("malloc: %m"); + return NULL; + } + + h->files = malloc (nr_files * sizeof (struct file)); + if (h->files == NULL) { + nbdkit_error ("malloc: %m"); + free (h); + return NULL; + } + for (i = 0; i < nr_files; ++i) + h->files[i].fd = -1; + + /* Open the files. */ + flags = O_CLOEXEC|O_NOCTTY; + if (readonly) + flags |= O_RDONLY; + else + flags |= O_RDWR; + + for (i = 0; i < nr_files; ++i) { + h->files[i].fd = open (filenames[i], flags); + if (h->files[i].fd == -1) { + nbdkit_error ("open: %s: %m", filenames[i]); + goto err; + } + } + + offset = 0; + for (i = 0; i < nr_files; ++i) { + h->files[i].offset = offset; + + if (fstat (h->files[i].fd, &statbuf) == -1) { + nbdkit_error ("stat: %s: %m", filenames[i]); + goto err; + } + h->files[i].size = statbuf.st_size; + offset += statbuf.st_size; + + nbdkit_debug ("file[%zu]=%s: offset=%" PRIu64 ", size=%" PRIu64, + i, filenames[i], h->files[i].offset, h->files[i].size); + } + h->size = offset; + nbdkit_debug ("total size=%" PRIu64, h->size); + + return h; + + err: + for (i = 0; i < nr_files; ++i) { + if (h->files[i].fd >= 0) + close (h->files[i].fd); + } + free (h->files); + free (h); + return NULL; +} + +/* Free up the per-connection handle. */ +static void +split_close (void *handle) +{ + struct handle *h = handle; + size_t i; + + for (i = 0; i < nr_files; ++i) + close (h->files[i].fd); + free (h->files); + free (h); +} + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS + +/* Get the disk size. */ +static int64_t +split_get_size (void *handle) +{ + struct handle *h = handle; + + return (int64_t) h->size; +} + +/* Helper function to map the offset to the correct file. */ +static int +compare_offset (const void *offsetp, const void *filep) +{ + const uint64_t offset = *(uint64_t *)offsetp; + const struct file *file = (struct file *)filep; + + if (offset < file->offset) return -1; + if (offset >= file->offset + file->size) return 1; + return 0; +} + +static struct file * +get_file (struct handle *h, uint64_t offset) +{ + return bsearch (&offset, h->files, + nr_files, sizeof (struct file), + compare_offset); +} + +/* Read data. */ +static int +split_pread (void *handle, void *buf, uint32_t count, uint64_t offset) +{ + struct handle *h = handle; + + while (count > 0) { + struct file *file = get_file (h, offset); + uint64_t foffs = offset - file->offset; + uint64_t max; + ssize_t r; + + max = file->size - foffs; + if (max > count) + max = count; + + r = pread (file->fd, buf, max, foffs); + if (r == -1) { + nbdkit_error ("pread: %m"); + return -1; + } + if (r == 0) { + nbdkit_error ("pread: unexpected end of file"); + return -1; + } + buf += r; + count -= r; + offset += r; + } + + return 0; +} + +/* Write data to the file. */ +static int +split_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset) +{ + struct handle *h = handle; + + while (count > 0) { + struct file *file = get_file (h, offset); + uint64_t foffs = offset - file->offset; + uint64_t max; + ssize_t r; + + max = file->size - foffs; + if (max > count) + max = count; + + r = pwrite (file->fd, buf, max, offset); + if (r == -1) { + nbdkit_error ("pwrite: %m"); + return -1; + } + buf += r; + count -= r; + offset += r; + } + + return 0; +} + +static struct nbdkit_plugin plugin = { + .name = "split", + .version = PACKAGE_VERSION, + .unload = split_unload, + .config = split_config, + .config_help = split_config_help, + .magic_config_key = "file", + .open = split_open, + .close = split_close, + .get_size = split_get_size, + .pread = split_pread, + .pwrite = split_pwrite, + /* In this plugin, errno is preserved properly along error return + * paths from failed system calls. + */ + .errno_is_preserved = 1, +}; + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/plugins/ssh/Makefile.am b/plugins/ssh/Makefile.am new file mode 100644 index 0000000..0baef2d --- /dev/null +++ b/plugins/ssh/Makefile.am @@ -0,0 +1,68 @@ +# nbdkit +# Copyright (C) 2014-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-ssh-plugin.pod + +if HAVE_SSH + +plugin_LTLIBRARIES = nbdkit-ssh-plugin.la + +nbdkit_ssh_plugin_la_SOURCES = \ + ssh.c \ + $(top_srcdir)/include/nbdkit-plugin.h + +nbdkit_ssh_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include +nbdkit_ssh_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) \ + $(SSH_CFLAGS) +nbdkit_ssh_plugin_la_LIBADD = \ + $(SSH_LIBS) +nbdkit_ssh_plugin_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms + +if HAVE_POD + +man_MANS = nbdkit-ssh-plugin.1 +CLEANFILES += $(man_MANS) + +nbdkit-ssh-plugin.1: nbdkit-ssh-plugin.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD + +endif diff --git a/plugins/ssh/Makefile.in b/plugins/ssh/Makefile.in new file mode 100644 index 0000000..fad7c67 --- /dev/null +++ b/plugins/ssh/Makefile.in @@ -0,0 +1,890 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2014-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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[timeout=SECS] [user=USER] + [verify-remote-host=false] + +=head1 DESCRIPTION + +This is an L plugin which lets you access remote disk +images over Secure Shell (SSH). Any server which hosts disk images +and runs an SSH server can be turned into an NBD source using this +plugin. + +=head1 EXAMPLES + +=over 4 + +=item nbdkit ssh host=ssh.example.com disk.img + +Open a file called F on remote host C. +Because the pathname is relative, it is opened relative to the user’s +home directory on the remote server. + +The remote file can be read or written. To force read-only access add +the I<-r> flag. + +=item nbdkit ssh host=ssh.example.com disk.img user=bob + +As above but log in using username C (instead of trying the local +username). + +=back + +=head1 PARAMETERS + +=over 4 + +=item BCONFIG_FILE + +Read local SSH configuration from an alternate configuration file. +Libssh expands some C<%>-sequences in C, see +L below. C must expand to an absolute +path. + +=item B + +Do not read any local SSH configuration. + +The C parameter is optional. If it is I specified at all +then F<~/.ssh/config> and F are both read. +Missing or unreadable files are ignored. + +=item BHOST + +Specify the name or IP address of the remote host. + +This parameter is required. + +=item BFILENAME + +Prepend the private key (identity) C to the list of identity +files used. Libssh examines several identity files by default such as +F<~/.ssh/id_ed25519>, F<~/.ssh/id_ecdsa>, F<~/.ssh/id_rsa> and +F<~/.ssh/id_dsa>. Libssh expands some C<%>-sequences in C, +see L below. C must expand to an absolute +path. + +You can give this parameter multiple times. + +=item BFILENAME + +Set name of the file which records the identity of previously seen +hosts. Libssh expands some C<%>-sequences in C, see +L below. C must expand to an absolute +path. + +The default is to check F<~/.ssh/known_hosts> followed by +F. + +=item BPASSWORD + +Set the password to use when connecting to the remote server. + +Note that passing this on the command line is not secure on shared +machines. + +=item B + +Ask for the password (interactively) when nbdkit starts up. + +=item BFILENAME + +Read the password from the named file. This is the most secure method +to supply a password, as long as you set the permissions on the file +appropriately. + +=item [B]PATH + +Specify the path to the remote file. This can be a relative path in +which case it is relative to the remote home directory. + +This parameter is required. + +C is a magic config key and may be omitted in most cases. +See L. + +=item BPORT + +Specify the SSH protocol port name or number. + +This parameter is optional. If not given then the default ssh port is +used. + +=item BSECS + +Set the SSH connection timeout in seconds. + +=item BUSER + +Specify the remote username. + +This parameter is optional. If not given then the local username is +used. + +=item B + +=item B + +Set whether or not we verify the remote host is one we have previously +seen, using a local file such as F<~/.ssh/known_hosts>. The default +is C, meaning that we verify the remote host’s identity has not +changed. + +Setting this to C is dangerous because it allows a +Man-In-The-Middle (MITM) attack to be conducted against you. + +=back + +=head1 NOTES + +=head2 Known hosts + +The SSH server’s host key is checked at connection time, and must be +present and correct in the local "known hosts" file. + +If you have never connected to the SSH server before then the +connection will usually fail. You can: + +=over 4 + +=item * + +connect to the server first using L so you can manually accept +the host key, or + +=item * + +provide the host key in an alternate file which you specify using the +C option, or + +=item * + +set I on the command line. This latter +option is dangerous because it allows a MITM attack to be conducted +against you. + +=back + +=head2 Supported authentication methods + +This plugin supports only the following authentication methods: +C, C or C. In particular note that +C is I supported. + +=head2 SSH agent + +There is no means for nbdkit to ask for the public key passphrase when +it is running as a server. Therefore C authentication must +be done in conjunction with L. + +=head2 Path expansion + +In the C, C and C options, libssh +expands some C<%>-sequences. Unfortunately there is no escape +character for C<%> itself, so there is no way to specify that +character in the path. + +=over 4 + +=item C<%d> + +The user’s SSH directory, usually F<~/.ssh> + +=item C<%u> + +The local username. + +=item C<%l> + +The local hostname. + +=item C<%h> + +The remote hostname. + +=item C<%r> + +The remote username. + +=item C<%p> + +The SSH port number. + +=back + +=head1 FILES + +=over 4 + +=item F<~/.ssh/config> + +=item F + +These are the default SSH config files which are read to get other +options. You can change this using the C option. + +=item F<~/.ssh/id_dsa> + +=item F<~/.ssh/id_ecdsa> + +=item F<~/.ssh/id_ed25519> + +=item F<~/.ssh/id_rsa> + +These are some of the default private key (identify) files used by +libssh. You can prepend more to the list using the C +option. + +=item F<~/.ssh/known_hosts> + +=item F + +These are the default SSH files recording the identity of previously +seen hosts. You can change this using the C option. + +=back + +=head1 DEBUG FLAGS + +=head2 -D ssh.log=[1..4] + +Set the libssh log level to increasing levels of verbosity. Each +level includes messages from the previous levels. Currently +the levels are: + +=over 4 + +=item B<1> + +informational and warning messages + +=item B<2> + +SSH and SFTP protocol steps + +=item B<3> + +SSH and SFTP packets + +=item B<4> + +libssh functions + +=back + +Use level 2 to diagnose SSH protocol or server problems. Levels 3 and +4 are extremely verbose and probably only useful if you are debugging +libssh itself. + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +Parts derived from Pino Toscano’s qemu libssh driver. + +=head1 COPYRIGHT + +Copyright (C) 2014-2019 Red Hat Inc. diff --git a/plugins/ssh/ssh.c b/plugins/ssh/ssh.c new file mode 100644 index 0000000..3c7a37f --- /dev/null +++ b/plugins/ssh/ssh.c @@ -0,0 +1,637 @@ +/* nbdkit + * Copyright (C) 2014-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include + +#include "minmax.h" + +static const char *host = NULL; +static const char *path = NULL; +static const char *port = NULL; +static const char *user = NULL; +static char *password = NULL; +static bool verify_remote_host = true; +static const char *known_hosts = NULL; +static const char **identity = NULL; +static size_t nr_identities = 0; +static long timeout = 0; + +/* config can be: + * NULL => parse options from default file + * "" => do NOT parse options + * some filename => parse options from filename + */ +static const char *config = NULL; + +/* Use '-D ssh.log=N' to set. */ +int ssh_debug_log = 0; + +/* If ssh_debug_log > 0 then the library will call this function with + * log messages. + */ +static void +log_callback (int priority, const char *function, const char *message, void *vp) +{ + const char *levels[] = + { "none", "warning", "protocol", "packet", "function" }; + const size_t nr_levels = sizeof levels / sizeof levels[0]; + const char *level; + + if (priority >= 0 && priority < nr_levels) + level = levels[priority]; + else + level = "unknown"; + + /* NB We don't need to print the function parameter because it is + * always prefixed to the message. + */ + nbdkit_debug ("libssh: %s: %s", level, message); +} + +static void +ssh_unload (void) +{ + free (identity); + free (password); +} + +/* Called for each key=value passed on the command line. */ +static int +ssh_config (const char *key, const char *value) +{ + int r; + + if (strcmp (key, "host") == 0) + host = value; + + else if (strcmp (key, "path") == 0) + path = value; + + else if (strcmp (key, "port") == 0) + port = value; + + else if (strcmp (key, "user") == 0) + user = value; + + else if (strcmp (key, "password") == 0) { + free (password); + if (nbdkit_read_password (value, &password) == -1) + return -1; + } + + else if (strcmp (key, "config") == 0) + config = value; /* %-expanded, cannot use nbdkit_absolute_path */ + + else if (strcmp (key, "known-hosts") == 0) + known_hosts = value; /* %-expanded, cannot use nbdkit_absolute_path */ + + else if (strcmp (key, "identity") == 0) { + const char **new_identity = + realloc (identity, (nr_identities+1) * sizeof (const char *)); + if (new_identity == NULL) { + nbdkit_error ("realloc: %m"); + return -1; + } + identity = new_identity; + /* %-expanded, cannot use nbdkit_absolute_path */ + identity[nr_identities] = value; + nr_identities++; + } + + else if (strcmp (key, "verify-remote-host") == 0) { + r = nbdkit_parse_bool (value); + if (r == -1) + return -1; + verify_remote_host = r; + } + + else if (strcmp (key, "timeout") == 0) { + if (sscanf (value, "%ld", &timeout) != 1) { + nbdkit_error ("cannot parse timeout: %s", value); + return -1; + } + } + + else { + nbdkit_error ("unknown parameter '%s'", key); + return -1; + } + + return 0; +} + +/* The host and path parameters are mandatory. */ +static int +ssh_config_complete (void) +{ + if (host == NULL || path == NULL) { + nbdkit_error ("you must supply the host and path parameters " + "after the plugin name on the command line"); + return -1; + } + + return 0; +} + +#define ssh_config_help \ + "host= (required) SSH server hostname.\n" \ + "[path=] (required) SSH remote path.\n" \ + "port= SSH protocol port number.\n" \ + "user= SSH user name.\n" \ + "password= SSH password.\n" \ + "config= Alternate local SSH configuration file.\n" \ + "known-hosts= Set location of known_hosts file.\n" \ + "identity= Prepend private key (identity) file.\n" \ + "timeout=SECS Set SSH connection timeout.\n" \ + "verify-remote-host=false Ignore known_hosts." + +/* The per-connection handle. */ +struct ssh_handle { + ssh_session session; + sftp_session sftp; + sftp_file file; +}; + +/* Verify the remote host. + * See: http://api.libssh.org/master/libssh_tutor_guided_tour.html + */ +static int +do_verify_remote_host (struct ssh_handle *h) +{ + enum ssh_known_hosts_e state; + unsigned char *hash = NULL; + ssh_key srv_pubkey = NULL; + size_t hlen; + int rc; + + rc = ssh_get_server_publickey (h->session, &srv_pubkey); + if (rc < 0) { + nbdkit_error ("could not get server public key"); + return -1; + } + rc = ssh_get_publickey_hash (srv_pubkey, + SSH_PUBLICKEY_HASH_SHA1, + &hash, &hlen); + ssh_key_free(srv_pubkey); + if (rc < 0) { + nbdkit_error ("could not get server public key SHA1 hash"); + return -1; + } + + state = ssh_session_is_known_server (h->session); + switch (state) { + case SSH_KNOWN_HOSTS_OK: + /* OK */ + break; + + case SSH_KNOWN_HOSTS_CHANGED: + nbdkit_error ("host key for server changed"); + ssh_clean_pubkey_hash (&hash); + return -1; + + case SSH_KNOWN_HOSTS_OTHER: + nbdkit_error ("host key for server was not found " + "but another type of key exists"); + ssh_clean_pubkey_hash (&hash); + return -1; + + case SSH_KNOWN_HOSTS_NOT_FOUND: + /* This is not actually an error, but the user must ensure the + * host key is set up before using nbdkit so we error out here. + */ + nbdkit_error ("could not find known_hosts file"); + ssh_clean_pubkey_hash (&hash); + return -1; + + case SSH_KNOWN_HOSTS_UNKNOWN: + nbdkit_error ("host key is unknown, you must use ssh first " + "and accept the host key"); + ssh_clean_pubkey_hash (&hash); + return -1; + + case SSH_KNOWN_HOSTS_ERROR: + nbdkit_error ("known hosts error: %s", ssh_get_error (h->session)); + ssh_clean_pubkey_hash (&hash); + return -1; + } + + ssh_clean_pubkey_hash (&hash); + return 0; +} + +/* Authenticate. + * See: http://api.libssh.org/master/libssh_tutor_authentication.html + */ +static int +authenticate_pubkey (ssh_session session) +{ + int rc; + + rc = ssh_userauth_publickey_auto (session, NULL, NULL); + if (rc == SSH_AUTH_ERROR) + nbdkit_debug ("public key authentication failed: %s", + ssh_get_error (session)); + + return rc; +} + +static int +authenticate_password (ssh_session session, const char *password) +{ + int rc; + + rc = ssh_userauth_password (session, NULL, password); + if (rc == SSH_AUTH_ERROR) + nbdkit_debug ("password authentication failed: %s", + ssh_get_error (session)); + return rc; +} + +static int +authenticate (struct ssh_handle *h) +{ + int method, rc; + + rc = ssh_userauth_none (h->session, NULL); + if (rc == SSH_AUTH_SUCCESS) + return 0; + if (rc == SSH_AUTH_ERROR) + return -1; + + method = ssh_userauth_list (h->session, NULL); + + if (method & SSH_AUTH_METHOD_PUBLICKEY) { + rc = authenticate_pubkey (h->session); + if (rc == SSH_AUTH_SUCCESS) return 0; + } + + /* Example code tries keyboard-interactive here, but we cannot use + * that method from a server. + */ + + if (password != NULL && (method & SSH_AUTH_METHOD_PASSWORD)) { + rc = authenticate_password (h->session, password); + if (rc == SSH_AUTH_SUCCESS) return 0; + } + + nbdkit_error ("all possible authentication methods failed"); + return -1; +} + +/* Create the per-connection handle. */ +static void * +ssh_open (int readonly) +{ + struct ssh_handle *h; + const int set = 1; + size_t i; + int r; + int access_type; + + h = calloc (1, sizeof *h); + if (h == NULL) { + nbdkit_error ("calloc: %m"); + return NULL; + } + + /* Set up the SSH session. */ + h->session = ssh_new (); + if (!h->session) { + nbdkit_error ("failed to initialize libssh session"); + goto err; + } + + if (ssh_debug_log > 0) { + ssh_options_set (h->session, SSH_OPTIONS_LOG_VERBOSITY, &ssh_debug_log); + /* Even though this is setting a "global", we must call it every + * time we set the session otherwise messages go to stderr. + */ + ssh_set_log_callback (log_callback); + } + + /* Disable Nagle's algorithm which is recommended by the libssh + * developers to improve performance of sftp. Ignore any error if + * we fail to set this. + */ + ssh_options_set (h->session, SSH_OPTIONS_NODELAY, &set); + + r = ssh_options_set (h->session, SSH_OPTIONS_HOST, host); + if (r != SSH_OK) { + nbdkit_error ("failed to set host in libssh session: %s: %s", + host, ssh_get_error (h->session)); + goto err; + } + if (port != NULL) { + r = ssh_options_set (h->session, SSH_OPTIONS_PORT_STR, port); + if (r != SSH_OK) { + nbdkit_error ("failed to set port in libssh session: %s: %s", + port, ssh_get_error (h->session)); + goto err; + } + } + if (user != NULL) { + r = ssh_options_set (h->session, SSH_OPTIONS_USER, user); + if (r != SSH_OK) { + nbdkit_error ("failed to set user in libssh session: %s: %s", + user, ssh_get_error (h->session)); + goto err; + } + } + if (known_hosts != NULL) { + r = ssh_options_set (h->session, SSH_OPTIONS_KNOWNHOSTS, known_hosts); + if (r != SSH_OK) { + nbdkit_error ("failed to set known_hosts in libssh session: %s: %s", + known_hosts, ssh_get_error (h->session)); + goto err; + } + /* XXX This is still going to read the global file, and there + * seems to be no way to disable that. However it doesn't matter + * as this file is rarely present. + */ + } + for (i = 0; i < nr_identities; ++i) { + r = ssh_options_set (h->session, SSH_OPTIONS_ADD_IDENTITY, identity[i]); + if (r != SSH_OK) { + nbdkit_error ("failed to add identity in libssh session: %s: %s", + identity[i], ssh_get_error (h->session)); + goto err; + } + } + if (timeout > 0) { + r = ssh_options_set (h->session, SSH_OPTIONS_TIMEOUT, &timeout); + if (r != SSH_OK) { + nbdkit_error ("failed to set timeout in libssh session: %ld: %s", + timeout, ssh_get_error (h->session)); + goto err; + } + } + + /* Read SSH config or alternative file. Must happen last so that + * the hostname has been set already. + */ + if (config == NULL) { + /* NULL means parse the default files, which are ~/.ssh/config and + * /etc/ssh/ssh_config. If either are missing then they are + * ignored. + */ + r = ssh_options_parse_config (h->session, NULL); + if (r != SSH_OK) { + nbdkit_error ("failed to parse local SSH configuration: %s", + ssh_get_error (h->session)); + goto err; + } + } + else if (strcmp (config, "") != 0) { + /* User has specified a single file. This function ignores the + * case where the file is missing - should we check this? XXX + */ + r = ssh_options_parse_config (h->session, config); + if (r != SSH_OK) { + nbdkit_error ("failed to parse SSH configuration: %s: %s", + config, ssh_get_error (h->session)); + goto err; + } + } + + /* Connect. */ + r = ssh_connect (h->session); + if (r != SSH_OK) { + nbdkit_error ("failed to connect to remote host: %s: %s", + host, ssh_get_error (h->session)); + goto err; + } + + /* Verify the remote host. */ + if (verify_remote_host && do_verify_remote_host (h) == -1) + goto err; + + /* Authenticate. */ + if (authenticate (h) == -1) + goto err; + + /* Open the SFTP connection and file. */ + h->sftp = sftp_new (h->session); + if (!h->sftp) { + nbdkit_error ("failed to allocate sftp session: %s", + ssh_get_error (h->session)); + goto err; + } + r = sftp_init (h->sftp); + if (r != SSH_OK) { + nbdkit_error ("failed to initialize sftp session: %s", + ssh_get_error (h->session)); + goto err; + } + access_type = readonly ? O_RDONLY : O_RDWR; + h->file = sftp_open (h->sftp, path, access_type, S_IRWXU); + if (!h->file) { + nbdkit_error ("cannot open file for %s: %s", + readonly ? "reading" : "writing", + ssh_get_error (h->session)); + goto err; + } + + nbdkit_debug ("opened libssh handle"); + + return h; + + err: + if (h->file) + sftp_close (h->file); + if (h->sftp) + sftp_free (h->sftp); + if (h->session) { + ssh_disconnect (h->session); + ssh_free (h->session); + } + free (h); + return NULL; +} + +/* Free up the per-connection handle. */ +static void +ssh_close (void *handle) +{ + struct ssh_handle *h = handle; + int r; + + r = sftp_close (h->file); + if (r != SSH_OK) + nbdkit_error ("cannot close file: %s", ssh_get_error (h->session)); + + sftp_free (h->sftp); + ssh_disconnect (h->session); + ssh_free (h->session); + free (h); +} + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS + +/* Get the file size. */ +static int64_t +ssh_get_size (void *handle) +{ + struct ssh_handle *h = handle; + sftp_attributes attrs; + int64_t r; + + attrs = sftp_fstat (h->file); + r = attrs->size; + sftp_attributes_free (attrs); + + return r; +} + +/* Read data from the remote server. */ +static int +ssh_pread (void *handle, void *buf, uint32_t count, uint64_t offset) +{ + struct ssh_handle *h = handle; + int r; + ssize_t rs; + + r = sftp_seek64 (h->file, offset); + if (r != SSH_OK) { + nbdkit_error ("seek64 failed: %s", ssh_get_error (h->session)); + return -1; + } + + while (count > 0) { + rs = sftp_read (h->file, buf, count); + if (rs < 0) { + nbdkit_error ("read failed: %s (%zd)", ssh_get_error (h->session), rs); + return -1; + } + buf += rs; + count -= rs; + } + + return 0; +} + +/* Write data to the remote server. */ +static int +ssh_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset) +{ + struct ssh_handle *h = handle; + int r; + ssize_t rs; + + r = sftp_seek64 (h->file, offset); + if (r != SSH_OK) { + nbdkit_error ("seek64 failed: %s", ssh_get_error (h->session)); + return -1; + } + + while (count > 0) { + /* Openssh has a maximum packet size of 256K, so any write + * requests larger than this will fail in a peculiar way. (This + * limit doesn't seem to include the SFTP protocol overhead). + * Therefore if the count is larger than 128K, reduce the size of + * the request. I don't know whether 256K is a limit that applies + * to all servers. + */ + rs = sftp_write (h->file, buf, MIN (count, 128*1024)); + if (rs < 0) { + nbdkit_error ("write failed: %s (%zd)", ssh_get_error (h->session), rs); + return -1; + } + buf += rs; + count -= rs; + } + + return 0; +} + +static int +ssh_can_flush (void *handle) +{ + struct ssh_handle *h = handle; + + /* I added this extension to openssh 6.5 (April 2013). It may not + * be available in other SSH servers. + */ + return sftp_extension_supported (h->sftp, "fsync@openssh.com", "1"); +} + +static int +ssh_flush (void *handle) +{ + struct ssh_handle *h = handle; + int r; + + again: + r = sftp_fsync (h->file); + if (r == SSH_AGAIN) + goto again; + else if (r != SSH_OK) { + nbdkit_error ("fsync failed: %s", ssh_get_error (h->session)); + return -1; + } + + return 0; +} + +static struct nbdkit_plugin plugin = { + .name = "ssh", + .version = PACKAGE_VERSION, + .unload = ssh_unload, + .config = ssh_config, + .config_complete = ssh_config_complete, + .config_help = ssh_config_help, + .magic_config_key = "path", + .open = ssh_open, + .close = ssh_close, + .get_size = ssh_get_size, + .pread = ssh_pread, + .pwrite = ssh_pwrite, + .can_flush = ssh_can_flush, + .flush = ssh_flush, +}; + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/plugins/streaming/Makefile.am b/plugins/streaming/Makefile.am new file mode 100644 index 0000000..258e1d1 --- /dev/null +++ b/plugins/streaming/Makefile.am @@ -0,0 +1,60 @@ +# nbdkit +# Copyright (C) 2014 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-streaming-plugin.pod + +plugin_LTLIBRARIES = nbdkit-streaming-plugin.la + +nbdkit_streaming_plugin_la_SOURCES = \ + streaming.c \ + $(top_srcdir)/include/nbdkit-plugin.h + +nbdkit_streaming_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/include +nbdkit_streaming_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_streaming_plugin_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms + +if HAVE_POD + +man_MANS = nbdkit-streaming-plugin.1 +CLEANFILES += $(man_MANS) + +nbdkit-streaming-plugin.1: nbdkit-streaming-plugin.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/plugins/streaming/Makefile.in b/plugins/streaming/Makefile.in new file mode 100644 index 0000000..199c718 --- /dev/null +++ b/plugins/streaming/Makefile.in @@ -0,0 +1,882 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2014 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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uninstall-pluginLTLIBRARIES + +.PRECIOUS: Makefile + + +@HAVE_POD_TRUE@nbdkit-streaming-plugin.1: nbdkit-streaming-plugin.pod +@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/plugins/streaming/nbdkit-streaming-plugin.pod b/plugins/streaming/nbdkit-streaming-plugin.pod new file mode 100644 index 0000000..5a53f29 --- /dev/null +++ b/plugins/streaming/nbdkit-streaming-plugin.pod @@ -0,0 +1,81 @@ +=head1 NAME + +nbdkit-streaming-plugin - nbdkit streaming plugin + +=head1 SYNOPSIS + + nbdkit streaming pipe=FILENAME [size=SIZE] + +=head1 DESCRIPTION + +C is a plugin for L that can turn +certain kinds of input into a stream. + +If the NBD client opens the NBD port, and writes from the start to the +end of the disk without seeking backwards, then this plugin will turn +the resulting disk image into a stream of data which is written to the +named C parameter. + + ┌───────────┐ + client │ nbdkit │ plugin streams + writes ──────▶│ streaming │──────▶ data to pipe + │ plugin │ + └───────────┘ + +Typical usage is with qemu tools. The following command will I +work because the output is a pipe or socket: + + qemu-img convert input -O raw pipe + +However this will work: + + nbdkit -U - streaming pipe=pipe --run ' + qemu-img convert -n input -O raw $nbd + ' + + ┌───────────┐ ┌───────────┐ + reads │ qemu-img │ │ nbdkit │ plugin streams + input ──────▶│ convert │──────▶│ streaming │──────▶ data to pipe + file │ command │ │ plugin │ + └───────────┘ ↑└───────────┘ + Unix domain socket (-U -) + +For use of the I<--run> and I<-U -> options, see +L. + +=head1 PARAMETERS + +=over 4 + +=item BFILENAME + +Write to the named pipe or socket. If the pipe or socket does not +exist, then it is created (as a named FIFO), otherwise the existing +pipe or socket is opened and used. + +This parameter is required. + +=item BSIZE + +Specify the virtual size of the stream. + +This parameter is optional. If not specified, then the virtual disk +appears to the client to be very large (effectively infinite). +Whether you need to specify this parameter depends on the client. +Some clients don't check the size and just write/stream, others do +checks or calculations based on the apparent size. + +=back + +=head1 SEE ALSO + +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2014 Red Hat Inc. diff --git a/plugins/streaming/streaming.c b/plugins/streaming/streaming.c new file mode 100644 index 0000000..4ca3e76 --- /dev/null +++ b/plugins/streaming/streaming.c @@ -0,0 +1,265 @@ +/* nbdkit + * Copyright (C) 2014 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#ifndef O_CLOEXEC +#define O_CLOEXEC 0 +#endif + +static char *filename = NULL; +static int fd = -1; + +/* In theory INT64_MAX, but it breaks qemu's NBD driver. */ +static int64_t size = INT64_MAX/2; + +/* Flag if we have entered the unrecoverable error state because of + * a seek backwards. + */ +static int errorstate = 0; + +/* Highest byte (+1) that has been written in the data stream. */ +static uint64_t highestwrite = 0; + +/* Called for each key=value passed on the command line. */ +static int +streaming_config (const char *key, const char *value) +{ + if (strcmp (key, "pipe") == 0) { + /* See FILENAMES AND PATHS in nbdkit-plugin(3). */ + filename = nbdkit_absolute_path (value); + if (!filename) + return -1; + } + else if (strcmp (key, "size") == 0) { + size = nbdkit_parse_size (value); + if (size == -1) + return -1; + } + else { + nbdkit_error ("unknown parameter '%s'", key); + return -1; + } + + return 0; +} + +/* Check the user did pass a pipe= parameter. */ +static int +streaming_config_complete (void) +{ + if (filename == NULL) { + nbdkit_error ("you must supply the pipe= parameter " + "after the plugin name on the command line"); + return -1; + } + + /* Open the file blindly. If this fails with ENOENT then we create a + * FIFO and try again. + */ + again: + fd = open (filename, O_RDWR|O_CLOEXEC|O_NOCTTY); + if (fd == -1) { + if (errno != ENOENT) { + nbdkit_error ("open: %s: %m", filename); + return -1; + } + if (mknod (filename, S_IFIFO | 0666, 0) == -1) { + nbdkit_error ("mknod: %s: %m", filename); + return -1; + } + goto again; + } + + return 0; +} + +/* nbdkit is shutting down. */ +static void +streaming_unload (void) +{ + if (fd >= 0) + close (fd); + free (filename); +} + +#define streaming_config_help \ + "pipe= (required) The filename to serve.\n" \ + "size= (optional) Stream size." + +/* Create the per-connection handle. */ +static void * +streaming_open (int readonly) +{ + void *h; + + if (readonly) { + nbdkit_error ("you cannot use the -r option with the streaming plugin"); + return NULL; + } + + if (errorstate) { + nbdkit_error ("unrecoverable error state, " + "no new connections can be opened"); + return NULL; + } + + /* There is no handle, so return an arbitrary non-NULL pointer. */ + h = &fd; + + return h; +} + +/* Free up the per-connection handle. */ +static void +streaming_close (void *handle) +{ +} + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS + +/* Return the size of the stream (infinite). */ +static int64_t +streaming_get_size (void *handle) +{ + return size; +} + +/* Write data to the stream. */ +static int +streaming_pwrite (void *handle, const void *buf, + uint32_t count, uint64_t offset) +{ + size_t n; + ssize_t r; + + if (errorstate) { + nbdkit_error ("unrecoverable error state"); + errno = EIO; + return -1; + } + + if (offset < highestwrite) { + nbdkit_error ("client tried to seek backwards and write: " + "the streaming plugin does not currently support this"); + errorstate = 1; + errno = EIO; + return -1; + } + + /* Need to write some zeroes. */ + if (offset > highestwrite) { + int64_t size = offset - highestwrite; + char buf[4096]; + + memset (buf, 0, sizeof buf); + + while (size > 0) { + n = size > sizeof buf ? sizeof buf : size; + r = write (fd, buf, n); + if (r == -1) { + nbdkit_error ("write: %m"); + errorstate = 1; + return -1; + } + highestwrite += r; + size -= r; + } + } + + /* Write the data. */ + while (count > 0) { + r = write (fd, buf, count); + if (r == -1) { + nbdkit_error ("write: %m"); + errorstate = 1; + return -1; + } + buf += r; + highestwrite += r; + count -= r; + } + + return 0; +} + +/* Read data back from the stream. */ +static int +streaming_pread (void *handle, void *buf, uint32_t count, uint64_t offset) +{ + if (errorstate) { + nbdkit_error ("unrecoverable error state"); + errno = EIO; + return -1; + } + + /* Allow reads which are entirely >= highestwrite. These return zeroes. */ + if (offset >= highestwrite) { + memset (buf, 0, count); + return 0; + } + + nbdkit_error ("client tried to read: " + "the streaming plugin does not currently support this"); + errorstate = 1; + errno = EIO; + return -1; +} + +static struct nbdkit_plugin plugin = { + .name = "streaming", + .longname = "nbdkit streaming plugin", + .version = PACKAGE_VERSION, + .unload = streaming_unload, + .config = streaming_config, + .config_complete = streaming_config_complete, + .config_help = streaming_config_help, + .open = streaming_open, + .close = streaming_close, + .get_size = streaming_get_size, + .pwrite = streaming_pwrite, + .pread = streaming_pread, + .errno_is_preserved = 1, +}; + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/plugins/tar/Makefile.am b/plugins/tar/Makefile.am new file mode 100644 index 0000000..2f6d004 --- /dev/null +++ b/plugins/tar/Makefile.am @@ -0,0 +1,63 @@ +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +source = tar.pl + +EXTRA_DIST = \ + $(source) + +if HAVE_PERL + +plugin_SCRIPTS = nbdkit-tar-plugin +CLEANFILES += nbdkit-tar-plugin + +# We have to do the rewriting here to avoid stupid exec_prefix. +nbdkit-tar-plugin: $(source) + rm -f $@ $@-t + sed 's,\@sbindir\@,${sbindir},g' < $< > $@-t + mv $@-t $@ + chmod 0555 $@ + +if HAVE_POD + +man_MANS = nbdkit-tar-plugin.1 +CLEANFILES += $(man_MANS) + +nbdkit-tar-plugin.1: $(source) + $(PODWRAPPER) --section=1 --name nbdkit-tar-plugin --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD + +endif diff --git a/plugins/tar/Makefile.in b/plugins/tar/Makefile.in new file mode 100644 index 0000000..d8be045 --- /dev/null +++ b/plugins/tar/Makefile.in @@ -0,0 +1,725 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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distclean-generic + +dvi: dvi-am + +dvi-am: + +html: html-am + +html-am: + +info: info-am + +info-am: + +install-data-am: install-man install-pluginSCRIPTS + +install-dvi: install-dvi-am + +install-dvi-am: + +install-exec-am: + +install-html: install-html-am + +install-html-am: + +install-info: install-info-am + +install-info-am: + +install-man: install-man1 + +install-pdf: install-pdf-am + +install-pdf-am: + +install-ps: install-ps-am + +install-ps-am: + +installcheck-am: + +maintainer-clean: maintainer-clean-am + -rm -f Makefile +maintainer-clean-am: distclean-am maintainer-clean-generic + +mostlyclean: mostlyclean-am + +mostlyclean-am: mostlyclean-generic mostlyclean-libtool + +pdf: pdf-am + +pdf-am: + +ps: ps-am + +ps-am: + +uninstall-am: uninstall-man uninstall-pluginSCRIPTS + +uninstall-man: uninstall-man1 + +.MAKE: install-am install-strip + +.PHONY: all all-am check check-am clean clean-generic clean-libtool \ + cscopelist-am ctags-am distclean distclean-generic \ + distclean-libtool distdir dvi dvi-am html html-am info info-am \ + install install-am install-data install-data-am install-dvi \ + install-dvi-am install-exec install-exec-am install-html \ + install-html-am install-info install-info-am install-man \ + install-man1 install-pdf install-pdf-am install-pluginSCRIPTS \ + install-ps install-ps-am install-strip installcheck \ + installcheck-am installdirs maintainer-clean \ + maintainer-clean-generic mostlyclean mostlyclean-generic \ + mostlyclean-libtool pdf pdf-am ps ps-am tags-am uninstall \ + uninstall-am uninstall-man uninstall-man1 \ + uninstall-pluginSCRIPTS + +.PRECIOUS: Makefile + + +# We have to do the rewriting here to avoid stupid exec_prefix. +@HAVE_PERL_TRUE@nbdkit-tar-plugin: $(source) +@HAVE_PERL_TRUE@ rm -f $@ $@-t +@HAVE_PERL_TRUE@ sed 's,\@sbindir\@,${sbindir},g' < $< > $@-t +@HAVE_PERL_TRUE@ mv $@-t $@ +@HAVE_PERL_TRUE@ chmod 0555 $@ + +@HAVE_PERL_TRUE@@HAVE_POD_TRUE@nbdkit-tar-plugin.1: $(source) +@HAVE_PERL_TRUE@@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --name nbdkit-tar-plugin --man $@ \ +@HAVE_PERL_TRUE@@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_PERL_TRUE@@HAVE_POD_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/plugins/tar/tar.pl b/plugins/tar/tar.pl new file mode 100644 index 0000000..995baaa --- /dev/null +++ b/plugins/tar/tar.pl @@ -0,0 +1,173 @@ +#!@sbindir@/nbdkit perl +# -*- perl -*- + +=pod + +=head1 NAME + +nbdkit-tar-plugin - read and write files inside tar files without unpacking + +=head1 SYNOPSIS + + nbdkit tar tar=FILENAME.tar file=PATH_INSIDE_TAR + +=head1 EXAMPLE + +=head2 Serve a single file inside a tarball + + nbdkit tar tar=file.tar file=some/disk.img + guestfish --format=raw -a nbd://localhost + +=head2 Opening a disk image inside an OVA file + +The popular "Open Virtual Appliance" (OVA) format is really an +uncompressed tar file containing (usually) VMDK-format files, so you +could access one file in an OVA like this: + + $ tar tf rhel.ova + rhel.ovf + rhel-disk1.vmdk + rhel.mf + $ nbdkit -r tar tar=rhel.ova file=rhel-disk1.vmdk + $ guestfish --ro --format=vmdk -a nbd://localhost + +=head1 DESCRIPTION + +C is a plugin which can read and writes files +inside an uncompressed tar file without unpacking the tar file. + +The C and C parameters are required, specifying the name of +the uncompressed tar file and the exact path of the file within the +tar file to access as a disk image. + +This plugin will B work on compressed tar files. + +Use the nbdkit I<-r> flag to open the file readonly. This is the +safest option because it guarantees that the tar file will not be +modified. Without I<-r> writes will modify the tar file. + +Also writing to the tar file does not change data checksums stored in +other files (the C file in the example above), and as these +will become incorrect you probably won't be able to open the file with +another tool afterwards. + +The disk image cannot be resized. + +=head1 SEE ALSO + +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones. + +Based on the virt-v2v OVA importer written by Tomáš Golembiovský. + +=head1 COPYRIGHT + +Copyright (C) 2017 Red Hat Inc. + +=cut + +use strict; + +my $tar; # Tar file. +my $file; # File within the tar file. +my $offset; # Offset within tar file. +my $size; # Size of disk image within tar file. + +sub config +{ + my $k = shift; + my $v = shift; + + if ($k eq "tar") { + $tar = $v; + } + elsif ($k eq "file") { + $file = $v; + } + else { + die "unknown parameter $k"; + } +} + +# When all config parameters have been seen, find the extent of the +# file within the tar file. +sub config_complete +{ + die "tar or file parameter was not set\n" + unless defined $tar && defined $file; + + die "$tar: file not found\n" + unless -f $tar; + + open (my $pipe, "-|", "tar", "--no-auto-compress", "-tRvf", $tar, $file) + or die "$tar: could not open or parse tar file, see errors above"; + while (<$pipe>) { + if (/^block\s(\d+):\s\S+\s\S+\s(\d+)/) { + # Add one for the tar header, and multiply by the block size. + $offset = ($1 + 1) * 512; + $size = $2; + #print STDERR "offset = $offset, size = $size\n"; + } + } + close ($pipe); + + die "offset or size could not be parsed. Probably the tar file is not a tar file or the file does not exist in the tar file. See any errors above.\n" + unless defined $offset && defined $size; +} + +# Accept a connection from a client, create and return the handle +# which is passed back to other calls. +sub open +{ + my $readonly = shift; + my $mode = "<"; + $mode = "+<" unless $readonly; + open (my $fh, $mode, $tar) or die "$tar: open: $!"; + binmode $fh; + my $h = { fh => $fh, readonly => $readonly }; + return $h; +} + +# Close the connection. +sub close +{ + my $h = shift; + close $h->{fh}; +} + +# Return the size. +sub get_size +{ + my $h = shift; + return $size; +} + +# Read. +sub pread +{ + my $h = shift; + my $count = shift; + my $offs = shift; + seek ($h->{fh}, $offset + $offs, 0) or die "seek: $!"; + my $r; + read ($h->{fh}, $r, $count) or die "read: $!"; + return $r; +} + +# Write. +sub pwrite +{ + my $h = shift; + my $fh = $h->{fh}; + my $buf = shift; + my $count = length ($buf); + my $offs = shift; + seek ($fh, $offset + $offs, 0) or die "seek: $!"; + print $fh ($buf); +} diff --git a/plugins/tcl/Makefile.am b/plugins/tcl/Makefile.am new file mode 100644 index 0000000..efe9472 --- /dev/null +++ b/plugins/tcl/Makefile.am @@ -0,0 +1,68 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = \ + nbdkit-tcl-plugin.pod \ + example.tcl + +if HAVE_TCL + +plugin_LTLIBRARIES = nbdkit-tcl-plugin.la + +nbdkit_tcl_plugin_la_SOURCES = \ + tcl.c \ + $(top_srcdir)/include/nbdkit-plugin.h + +nbdkit_tcl_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/include +nbdkit_tcl_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) \ + $(TCL_CFLAGS) +nbdkit_tcl_plugin_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms \ + $(TCL_LIBS) + +if HAVE_POD + +man_MANS = nbdkit-tcl-plugin.3 +CLEANFILES += $(man_MANS) + +nbdkit-tcl-plugin.3: nbdkit-tcl-plugin.pod + $(PODWRAPPER) --section=3 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD + +endif diff --git a/plugins/tcl/Makefile.in b/plugins/tcl/Makefile.in new file mode 100644 index 0000000..2980725 --- /dev/null +++ b/plugins/tcl/Makefile.in @@ -0,0 +1,888 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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uninstall-pluginLTLIBRARIES + +.PRECIOUS: Makefile + + +@HAVE_POD_TRUE@@HAVE_TCL_TRUE@nbdkit-tcl-plugin.3: nbdkit-tcl-plugin.pod +@HAVE_POD_TRUE@@HAVE_TCL_TRUE@ $(PODWRAPPER) --section=3 --man $@ \ +@HAVE_POD_TRUE@@HAVE_TCL_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@@HAVE_TCL_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/plugins/tcl/example.tcl b/plugins/tcl/example.tcl new file mode 100644 index 0000000..306632b --- /dev/null +++ b/plugins/tcl/example.tcl @@ -0,0 +1,90 @@ +# Example Tcl plugin. +# +# This example can be freely used for any purpose. + +# Run it from the build directory like this: +# +# ./nbdkit -f -v tcl ./plugins/tcl/example.tcl file=disk.img +# +# Or run it after installing nbdkit like this: +# +# nbdkit -f -v tcl ./plugins/tcl/example.tcl file=disk.img +# +# The -f -v arguments are optional. They cause the server to stay in +# the foreground and print debugging, which is useful when testing. +# +# You can connect to the server using guestfish or qemu, eg: +# +# guestfish --format=raw -a nbd://localhost +# > run +# > part-disk /dev/sda mbr +# > mkfs ext2 /dev/sda1 +# > list-filesystems +# > mount /dev/sda1 / +# > [etc] + +# This is called from: nbdkit tcl example.tcl --dump-plugin +proc dump_plugin {} { + puts "example_tcl=1" +} + +# We expect a file=... parameter pointing to the file to serve. +proc config {key value} { + global file + + if { $key == "file" } { + set file $value + } else { + error "unknown parameter $key=$value" + } +} + +# Check the file parameter was passed. +proc config_complete {} { + global file + + if { ![info exists file] } { + error "file parameter missing" + } +} + +# Open a new client connection. +proc plugin_open {readonly} { + global file + + # Open the file. + if { $readonly } { + set flags "r" + } else { + set flags "r+" + } + set fh [open $file $flags] + + # Stop Tcl from trying to convert to and from UTF-8. + fconfigure $fh -translation binary + + # We can return any Tcl object as the handle. In this + # plugin it's convenient to return the file handle. + return $fh +} + +# Close a client connection. +proc plugin_close {fh} { + close $fh +} + +proc get_size {fh} { + global file + + return [file size $file] +} + +proc pread {fh count offset} { + seek $fh $offset + return [read $fh $count] +} + +proc pwrite {fh buf offset} { + seek $fh $offset + puts -nonewline $fh $buf +} diff --git a/plugins/tcl/nbdkit-tcl-plugin.pod b/plugins/tcl/nbdkit-tcl-plugin.pod new file mode 100644 index 0000000..3c6b8f7 --- /dev/null +++ b/plugins/tcl/nbdkit-tcl-plugin.pod @@ -0,0 +1,292 @@ +=head1 NAME + +nbdkit-tcl-plugin - nbdkit Tcl plugin + +=head1 SYNOPSIS + + nbdkit tcl /path/to/plugin.tcl [arguments...] + +=head1 DESCRIPTION + +C is an embedded Tcl interpreter for +L, allowing you to write nbdkit plugins in Tcl. + +=head2 If you have been given an nbdkit Tcl plugin + +Assuming you have a Tcl script which is an nbdkit plugin, you run it +like this: + + nbdkit tcl /path/to/plugin.tcl + +You may have to add further C arguments to the command +line. Read the Tcl script to see if it requires any. + +=head1 WRITING A TCL NBDKIT PLUGIN + +For an example plugin written in Tcl, see: +L + +Broadly speaking, Tcl nbdkit plugins work like C ones, so you should +read L first. + +To write a Tcl nbdkit plugin, you create a Tcl file which contains +at least the following required subroutines: + + proc plugin_open {readonly} { + # see below + return $h + } + proc get_size {h} { + # see below + return $size + } + proc pread {h count offset} { + # see below + return $buf + } + +Note that the subroutines must have those literal names (like +C), because the C part looks up and calls those functions +directly. You may want to include documentation and globals (eg. for +storing global state). Also any top-level statements are run when +nbdkit starts up. + +=head2 Executable script + +If you want you can make the script executable and include a "shebang" +at the top: + + #!/usr/sbin/nbdkit tcl + +See also L. + +These scripts can also be installed in the C<$plugindir>. See +L. + +=head2 Exceptions + +Tcl plugin methods can indicate an error by calling C. + +=head2 Binary data + +When writing your Tcl script, be careful to ensure that it is +processing binary data (not Unicode). If reading and writing from +local disk files, you should use: + + fconfigure $fp -translation binary + +Note also that the value returned from C should convertible to +a byte array, and the buffer passed to C is also a byte array. + +See also: L + +=head2 Tcl callbacks + +This just documents the arguments to the callbacks in Tcl, and any +way that they differ from the C callbacks. In all other respects they +work the same way as the C callbacks, so you should go and read +L. + +=over 4 + +=item C + +(Optional) + +There are no arguments or return value. + +=item C + +(Optional) + + proc config {key value} { + # No return value. + } + +=item C + +(Optional) + +There are no arguments or return value. + +=item C + +(Required) + + proc plugin_open {readonly} { + set handle ... + return $handle + } + +The C flag is a boolean. + +You can return any Tcl string or object as the handle. It is passed +back to subsequent calls. + +=item C + +(Optional) + + proc plugin_close {h} { + # No return value + } + +After C returns, the reference count of the handle is +decremented in the C part, which usually means that the handle and its +contents will be garbage collected. + +=item C + +(Required) + + proc get_size {h} { + set size .. the size of the disk .. + return $size + } + +This returns the size of the disk. + +=item C + +(Optional) + + proc can_write {h} { + return $bool + } + +Return a boolean indicating whether the disk is writable. + +=item C + +(Optional) + + proc can_flush {h} { + return $bool + } + +Return a boolean indicating whether flush can be performed. + +=item C + +(Optional) + + proc is_rotational {h} { + return $bool + } + +Return a boolean indicating whether the disk is rotational. + +=item C + +(Optional) + + proc can_trim {h} { + return $bool + } + +Return a boolean indicating whether trim/discard can be performed. + +=item C + +(Required) + + proc pread {h count offset} { + # Construct a buffer of length $count bytes and return it. + return $buf + } + +The body of your C function should construct a buffer of length +(at least) C<$count> bytes. You should read C<$count> bytes from the +disk starting at C<$offset>. + +NBD only supports whole reads, so your function should try to read the +whole region (perhaps requiring a loop). If the read fails or is +partial, your function should call C. + +=item C + +(Optional) + + proc pwrite {h buf offset} { + # No return value + } + +The body of your C function should write the C<$buf> string to +the disk. You should write C<$count> bytes to the disk starting at +C<$offset>. + +NBD only supports whole writes, so your function should try to write +the whole region (perhaps requiring a loop). If the write fails or is +partial, your function should call C. + +=item C + +(Optional) + + proc plugin_flush {h} { + # No return value + } + +The body of your C function should do a L or +L or equivalent on the backing store. + +=item C + +(Optional) + + proc trim {h count offset} { + # No return value + } + +The body of your C function should "punch a hole" in the backing +store. + +=item C + +(Optional) + + proc zero {h count offset may_trim} { + # No return value + } + +The body of your C function should ensure that C<$count> bytes +of the disk, starting at C<$offset>, will read back as zero. If +C<$may_trim> is true, the operation may be optimized as a trim as long +as subsequent reads see zeroes. + +NBD only supports whole writes, so your function should try to write +the whole region (perhaps requiring a loop). If the write fails or is +partial, your function should call C. + +=back + +=head2 Missing callbacks + +=over 4 + +=item Missing: C, C, C, C, C, +C, C, C, C + +These are not yet supported. + +=back + +=head2 Threads + +The thread model for Tcl callbacks currently cannot be set from Tcl. +It is hard-coded in the C part to +C. This may change or be +settable in future. + +=head1 SEE ALSO + +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/plugins/tcl/tcl.c b/plugins/tcl/tcl.c new file mode 100644 index 0000000..042ac4a --- /dev/null +++ b/plugins/tcl/tcl.c @@ -0,0 +1,564 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include + +#include + +#include + +static Tcl_Interp *interp; +static const char *script; + +static void +tcl_load (void) +{ + //Tcl_FindExecutable ("nbdkit"); + interp = Tcl_CreateInterp (); + if (Tcl_Init (interp) != TCL_OK) { + nbdkit_error ("cannot initialize Tcl interpreter: %s", + Tcl_GetStringResult (interp)); + exit (EXIT_FAILURE); + } +} + +static void +tcl_unload (void) +{ + if (interp) + Tcl_DeleteInterp (interp); + Tcl_Finalize (); +} + +/* Test if proc was defined by the Tcl code. */ +static int +proc_defined (const char *name) +{ + int r; + Tcl_Obj *cmd; + + cmd = Tcl_NewObj (); + Tcl_IncrRefCount (cmd); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("info", -1)); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("procs", -1)); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj (name, -1)); + r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT); + Tcl_DecrRefCount (cmd); + if (r != TCL_OK) { + nbdkit_error ("info procs: %s", Tcl_GetStringResult (interp)); + return 0; /* We can't return an error here, just return false. */ + } + + /* 'info procs name' returns the proc name if it exists, else empty + * string, so we can just check if the result is not empty. + */ + return strcmp (Tcl_GetStringResult (interp), "") != 0; +} + +static void +tcl_dump_plugin (void) +{ +#ifdef TCL_VERSION + printf ("tcl_version=%s\n", TCL_VERSION); +#endif + +#ifdef TCL_PATCH_LEVEL + printf ("tcl_patch_level=%s\n", TCL_PATCH_LEVEL); +#endif + + if (script && proc_defined ("dump_plugin")) { + int r; + Tcl_Obj *cmd; + + cmd = Tcl_NewObj (); + Tcl_IncrRefCount (cmd); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("dump_plugin", -1)); + r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT); + Tcl_DecrRefCount (cmd); + if (r != TCL_OK) + nbdkit_error ("dump_plugin: %s", Tcl_GetStringResult (interp)); + } +} + +static int +tcl_config (const char *key, const char *value) +{ + int r; + + if (!script) { + /* The first parameter MUST be "script". */ + if (strcmp (key, "script") != 0) { + nbdkit_error ("the first parameter must be script=/path/to/script.tcl"); + return -1; + } + script = value; + + assert (interp); + + /* Load the Tcl file. */ + r = Tcl_EvalFile (interp, script); + if (r != TCL_OK) { + if (r == TCL_ERROR) + nbdkit_error ("could not load Tcl script: %s: line %d: %s", + script, Tcl_GetErrorLine (interp), + Tcl_GetStringResult (interp)); + else + nbdkit_error ("could not load Tcl script: %s: %s", + script, Tcl_GetStringResult (interp)); + return -1; + } + + /* Minimal set of callbacks which are required (by nbdkit itself). */ + if (!proc_defined ("plugin_open") || + !proc_defined ("get_size") || + !proc_defined ("pread")) { + nbdkit_error ("%s: one of the required callbacks " + "'plugin_open', 'get_size' or 'pread' " + "is not defined by this Tcl script. " + "nbdkit requires these callbacks.", script); + return -1; + } + } + else if (proc_defined ("config")) { + int r; + Tcl_Obj *cmd; + + cmd = Tcl_NewObj (); + Tcl_IncrRefCount (cmd); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("config", -1)); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj (key, -1)); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj (value, -1)); + r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT); + Tcl_DecrRefCount (cmd); + if (r != TCL_OK) { + nbdkit_error ("config: %s", Tcl_GetStringResult (interp)); + return -1; + } + } + else { + /* Emulate what core nbdkit does if a config callback is NULL. */ + nbdkit_error ("%s: this plugin does not need command line configuration", + script); + return -1; + } + + return 0; +} + +static int +tcl_config_complete (void) +{ + int r; + Tcl_Obj *cmd; + + if (proc_defined ("config_complete")) { + cmd = Tcl_NewObj (); + Tcl_IncrRefCount (cmd); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("config_complete", -1)); + r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT); + Tcl_DecrRefCount (cmd); + if (r != TCL_OK) { + nbdkit_error ("config_complete: %s", Tcl_GetStringResult (interp)); + return -1; + } + } + + return 0; +} + +static void * +tcl_open (int readonly) +{ + int r; + Tcl_Obj *cmd, *res; + + cmd = Tcl_NewObj (); + Tcl_IncrRefCount (cmd); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("plugin_open", -1)); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewBooleanObj (readonly)); + r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT); + Tcl_DecrRefCount (cmd); + if (r != TCL_OK) { + nbdkit_error ("plugin_open: %s", Tcl_GetStringResult (interp)); + return NULL; + } + + res = Tcl_GetObjResult (interp); + Tcl_IncrRefCount (res); + return res; +} + +static void +tcl_close (void *handle) +{ + int r; + Tcl_Obj *h = handle, *cmd; + + if (proc_defined ("plugin_close")) { + cmd = Tcl_NewObj (); + Tcl_IncrRefCount (cmd); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("plugin_close", -1)); + Tcl_ListObjAppendElement (0, cmd, h); + r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT); + Tcl_DecrRefCount (cmd); + if (r != TCL_OK) + nbdkit_error ("plugin_close: %s", Tcl_GetStringResult (interp)); + } + + /* Ensure that the handle is freed. */ + Tcl_DecrRefCount (h); +} + +static int64_t +tcl_get_size (void *handle) +{ + int r; + Tcl_Obj *h = handle, *cmd, *res; + Tcl_WideInt size; + + cmd = Tcl_NewObj (); + Tcl_IncrRefCount (cmd); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("get_size", -1)); + Tcl_ListObjAppendElement (0, cmd, h); + r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT); + Tcl_DecrRefCount (cmd); + if (r != TCL_OK) { + nbdkit_error ("get_size: %s", Tcl_GetStringResult (interp)); + return -1; + } + + res = Tcl_GetObjResult (interp); + if (Tcl_GetWideIntFromObj (interp, res, &size) != TCL_OK) { + nbdkit_error ("get_size: Tcl_GetWideIntFromObj: %s", + Tcl_GetStringResult (interp)); + return -1; + } + return size; +} + +static int +tcl_pread (void *handle, void *buf, uint32_t count, uint64_t offset) +{ + int r; + Tcl_Obj *h = handle, *cmd, *res; + unsigned char *res_bin; + int res_len; + + cmd = Tcl_NewObj (); + Tcl_IncrRefCount (cmd); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("pread", -1)); + Tcl_ListObjAppendElement (0, cmd, h); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewIntObj (count)); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewWideIntObj (offset)); + r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT); + Tcl_DecrRefCount (cmd); + if (r != TCL_OK) { + nbdkit_error ("pread: %s", Tcl_GetStringResult (interp)); + return -1; + } + + res = Tcl_GetObjResult (interp); + res_bin = Tcl_GetByteArrayFromObj (res, &res_len); + if (res_len < count) { + nbdkit_error ("pread: buffer returned from pread is too small"); + return -1; + } + + memcpy (buf, res_bin, count); + return 0; +} + +static int +tcl_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset) +{ + if (proc_defined ("pwrite")) { + int r; + Tcl_Obj *h = handle, *cmd; + + cmd = Tcl_NewObj (); + Tcl_IncrRefCount (cmd); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("pwrite", -1)); + Tcl_ListObjAppendElement (0, cmd, h); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewByteArrayObj (buf, count)); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewWideIntObj (offset)); + r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT); + Tcl_DecrRefCount (cmd); + if (r != TCL_OK) { + nbdkit_error ("pwrite: %s", Tcl_GetStringResult (interp)); + return -1; + } + return 0; + } + + nbdkit_error ("pwrite not implemented"); + return -1; +} + +static int +tcl_can_write (void *handle) +{ + if (proc_defined ("can_write")) { + int r; + Tcl_Obj *h = handle, *cmd, *res; + + cmd = Tcl_NewObj (); + Tcl_IncrRefCount (cmd); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("can_write", -1)); + Tcl_ListObjAppendElement (0, cmd, h); + r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT); + Tcl_DecrRefCount (cmd); + if (r != TCL_OK) { + nbdkit_error ("can_write: %s", Tcl_GetStringResult (interp)); + return -1; + } + res = Tcl_GetObjResult (interp); + Tcl_GetBooleanFromObj (interp, res, &r); + return r; + } + /* No can_write callback, but there's a pwrite callback defined, so + * return 1. (In C modules, nbdkit would do this). + */ + else if (proc_defined ("pwrite")) + return 1; + else + return 0; +} + +static int +tcl_can_flush (void *handle) +{ + if (proc_defined ("can_flush")) { + int r; + Tcl_Obj *h = handle, *cmd, *res; + + cmd = Tcl_NewObj (); + Tcl_IncrRefCount (cmd); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("can_flush", -1)); + Tcl_ListObjAppendElement (0, cmd, h); + r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT); + Tcl_DecrRefCount (cmd); + if (r != TCL_OK) { + nbdkit_error ("can_flush: %s", Tcl_GetStringResult (interp)); + return -1; + } + res = Tcl_GetObjResult (interp); + Tcl_GetBooleanFromObj (interp, res, &r); + return r; + } + /* No can_flush callback, but there's a plugin_flush callback + * defined, so return 1. (In C modules, nbdkit would do this). + */ + else if (proc_defined ("plugin_flush")) + return 1; + else + return 0; +} + +static int +tcl_can_trim (void *handle) +{ + if (proc_defined ("can_trim")) { + int r; + Tcl_Obj *h = handle, *cmd, *res; + + cmd = Tcl_NewObj (); + Tcl_IncrRefCount (cmd); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("can_trim", -1)); + Tcl_ListObjAppendElement (0, cmd, h); + r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT); + Tcl_DecrRefCount (cmd); + if (r != TCL_OK) { + nbdkit_error ("can_trim: %s", Tcl_GetStringResult (interp)); + return -1; + } + res = Tcl_GetObjResult (interp); + Tcl_GetBooleanFromObj (interp, res, &r); + return r; + } + /* No can_trim callback, but there's a trim callback defined, so + * return 1. (In C modules, nbdkit would do this). + */ + else if (proc_defined ("trim")) + return 1; + else + return 0; +} + +static int +tcl_zero (void *handle, uint32_t count, uint64_t offset, int may_trim) +{ + if (proc_defined ("zero")) { + int r; + Tcl_Obj *h = handle, *cmd; + + cmd = Tcl_NewObj (); + Tcl_IncrRefCount (cmd); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("zero", -1)); + Tcl_ListObjAppendElement (0, cmd, h); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewIntObj (count)); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewWideIntObj (offset)); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewBooleanObj (may_trim)); + r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT); + Tcl_DecrRefCount (cmd); + if (r != TCL_OK) { + nbdkit_error ("zero: %s", Tcl_GetStringResult (interp)); + return -1; + } + return 0; + } + + nbdkit_debug ("zero falling back to pwrite"); + nbdkit_set_error (EOPNOTSUPP); + return -1; +} + +static int +tcl_is_rotational (void *handle) +{ + if (proc_defined ("is_rotational")) { + int r; + Tcl_Obj *h = handle, *cmd, *res; + + cmd = Tcl_NewObj (); + Tcl_IncrRefCount (cmd); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("is_rotational", -1)); + Tcl_ListObjAppendElement (0, cmd, h); + r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT); + Tcl_DecrRefCount (cmd); + if (r != TCL_OK) { + nbdkit_error ("is_rotational: %s", Tcl_GetStringResult (interp)); + return -1; + } + res = Tcl_GetObjResult (interp); + Tcl_GetBooleanFromObj (interp, res, &r); + return r; + } + else + return 0; +} + +static int +tcl_flush (void *handle) +{ + if (proc_defined ("plugin_flush")) { + int r; + Tcl_Obj *h = handle, *cmd; + + cmd = Tcl_NewObj (); + Tcl_IncrRefCount (cmd); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("plugin_flush", -1)); + Tcl_ListObjAppendElement (0, cmd, h); + r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT); + Tcl_DecrRefCount (cmd); + if (r != TCL_OK) { + nbdkit_error ("plugin_flush: %s", Tcl_GetStringResult (interp)); + return -1; + } + return 0; + } + + /* Ignore lack of flush callback, although probably nbdkit will + * never call this since .can_flush returns false. + */ + return 0; +} + +static int +tcl_trim (void *handle, uint32_t count, uint64_t offset) +{ + if (proc_defined ("trim")) { + int r; + Tcl_Obj *h = handle, *cmd; + + cmd = Tcl_NewObj (); + Tcl_IncrRefCount (cmd); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("trim", -1)); + Tcl_ListObjAppendElement (0, cmd, h); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewIntObj (count)); + Tcl_ListObjAppendElement (0, cmd, Tcl_NewWideIntObj (offset)); + r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT); + Tcl_DecrRefCount (cmd); + if (r != TCL_OK) { + nbdkit_error ("trim: %s", Tcl_GetStringResult (interp)); + return -1; + } + return 0; + } + + /* Ignore lack of trim callback, although probably nbdkit will never + * call this since .can_trim returns false. + */ + return 0; +} + +#define tcl_config_help \ + "script= (required) The Tcl script to run.\n" \ + "[other arguments may be used by the plugin that you load]" + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS + +static struct nbdkit_plugin plugin = { + .name = "tcl", + .version = PACKAGE_VERSION, + + .load = tcl_load, + .unload = tcl_unload, + .dump_plugin = tcl_dump_plugin, + + .config = tcl_config, + .config_complete = tcl_config_complete, + .config_help = tcl_config_help, + + .open = tcl_open, + .close = tcl_close, + + .get_size = tcl_get_size, + .can_write = tcl_can_write, + .can_flush = tcl_can_flush, + .is_rotational = tcl_is_rotational, + .can_trim = tcl_can_trim, + + .pread = tcl_pread, + .pwrite = tcl_pwrite, + .flush = tcl_flush, + .trim = tcl_trim, + .zero = tcl_zero, +}; + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/plugins/vddk/Makefile.am b/plugins/vddk/Makefile.am new file mode 100644 index 0000000..8d52a8c --- /dev/null +++ b/plugins/vddk/Makefile.am @@ -0,0 +1,71 @@ +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = \ + nbdkit-vddk-plugin.pod \ + README.VDDK + +if HAVE_VDDK + +plugin_LTLIBRARIES = nbdkit-vddk-plugin.la + +nbdkit_vddk_plugin_la_SOURCES = \ + vddk.c \ + vddk-structs.h \ + $(top_srcdir)/include/nbdkit-plugin.h + +nbdkit_vddk_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + -DVDDK_LIBDIR=\"$(libdir)/vmware-vix-disklib\" +nbdkit_vddk_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_vddk_plugin_la_LIBADD = \ + $(DL_LIBS) +nbdkit_vddk_plugin_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms + +if HAVE_POD + +man_MANS = nbdkit-vddk-plugin.1 +CLEANFILES += $(man_MANS) + +nbdkit-vddk-plugin.1: nbdkit-vddk-plugin.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD + +endif HAVE_VDDK diff --git a/plugins/vddk/Makefile.in b/plugins/vddk/Makefile.in new file mode 100644 index 0000000..4584edd --- /dev/null +++ b/plugins/vddk/Makefile.in @@ -0,0 +1,894 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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mostlyclean-compile \ + mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \ + tags tags-am uninstall uninstall-am uninstall-man \ + uninstall-man1 uninstall-pluginLTLIBRARIES + +.PRECIOUS: Makefile + + +@HAVE_POD_TRUE@@HAVE_VDDK_TRUE@nbdkit-vddk-plugin.1: nbdkit-vddk-plugin.pod +@HAVE_POD_TRUE@@HAVE_VDDK_TRUE@ $(PODWRAPPER) --section=1 --man $@ \ +@HAVE_POD_TRUE@@HAVE_VDDK_TRUE@ --html $(top_builddir)/html/$@.html \ +@HAVE_POD_TRUE@@HAVE_VDDK_TRUE@ $< + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/plugins/vddk/README.VDDK b/plugins/vddk/README.VDDK new file mode 100644 index 0000000..1e56631 --- /dev/null +++ b/plugins/vddk/README.VDDK @@ -0,0 +1,27 @@ +VDDK (Virtual Disk Development Kit) is a proprietary VMware library +for accessing VMDK files and VMware ESX servers. Note that the +license of the VDDK library is highly restrictive, preventing any +commercial usage without negotiating a separate license from VMware. + +In order to obtain the VDDK library you have to register for an +account and download it from: + + https://www.vmware.com/support/developer/vddk/ + +This directory contains an nbdkit plugin which uses this library to +export VMDK files and VMware disks over NBD. + +You do NOT require VDDK to compile the plugin, and the plugin does not +contain any VMware code. You only need VDDK at runtime. The plugin +uses dlopen to load the library from LD_LIBRARY_PATH (or else the +standard shared library paths). + +After building nbdkit-vddk-plugin.so, read the man page to find out +how to use it (nbdkit-vddk-plugin(1)). You'll probably also want to +read the VDDK developer documentation. + +Bugs +---- + +Write calls sometimes return VIX_E_DISK_OUTOFRANGE even for write +requests which are well inside the disk. \ No newline at end of file diff --git a/plugins/vddk/nbdkit-vddk-plugin.pod b/plugins/vddk/nbdkit-vddk-plugin.pod new file mode 100644 index 0000000..8820a50 --- /dev/null +++ b/plugins/vddk/nbdkit-vddk-plugin.pod @@ -0,0 +1,443 @@ +=head1 NAME + +nbdkit-vddk-plugin - nbdkit VMware VDDK plugin + +=head1 SYNOPSIS + + nbdkit vddk file=FILENAME [config=FILENAME] [libdir=LIBRARY] + [vm=moref=ID] [server=HOSTNAME] [user=USERNAME] + [password=PASSWORD | password=- | password=+FILENAME] + [cookie=COOKIE] [thumbprint=THUMBPRINT] + [port=PORT] [nfchostport=PORT] [single-link=true] + [snapshot=MOREF] [transports=MODE:MODE:...] + [unbuffered=true] + nbdkit vddk --dump-plugin + +=head1 DESCRIPTION + +C is an L plugin that serves files from +local VMware VMDK files, VMware ESXi servers, VMware VCenter servers, +and other sources. It requires VMware's proprietary VDDK library that +you must download yourself separately. + +The plugin can serve read-only (if the I<-r> option is used) or +read/write. + +=head1 LIBRARY AND CONFIG FILE LOCATIONS + +If the VDDK library (F>) is located on a +non-standard path, you may need to set C or modify +F before this plugin will work. In addition you may +want to set the C parameter so that the VDDK library can load +plugins like Advanced Transport. + +For 64 bit platforms pass the F subdirectory: + + export LD_LIBRARY_PATH=/path/to/vmware-vix-disklib-distrib/lib64 + +For 32 bit platforms pass the F subdirectory: + + export LD_LIBRARY_PATH=/path/to/vmware-vix-disklib-distrib/lib32 + +Then pass the VDDK distribution directory as C along with +other parameters as required: + + nbdkit vddk \ + libdir=/path/to/vmware-vix-disklib-distrib \ + file=file.vmdk + +VDDK itself looks in a few default locations for the optional +configuration file, usually including F and +F<$HOME/.vmware/config>, but you can override this using the C +parameter. + +=head1 PARAMETERS + +All parameters are optional except: + +=over 4 + +=item C + +is required for opening a local VMDK file. + +=item C + +=item C + +=item C + +=item C + +=item C + +=item C + +When making a remote connection you must supply all 6 of these +parameters. + +=back + +See the L section below for local and remote command lines. + +=over 4 + +=item BFILENAME + +The name of the VDDK configuration file. + +=item BCOOKIE + +Cookie from existing authenticated session on the host. + +=item BFILENAME + +Set the name of the VMDK file to serve. + +For local files you B supply an absolute path. + +For remote files this is usually a path on the VMware server with the +format C<"[datastore] path/to/file.vmdk">. You can find the path +using L. For ESXi: + + virsh -c 'esx://esxi.example.com?no_verify=1' dumpxml guestname + +For vCenter: + + virsh -c 'vpx://vcenter.example.com/Datacenter/esxi.example.com?no_verify=1' \ + dumpxml guestname + +If a VM has multiple disks, nbdkit can only serve one at a time. To +serve more than one you must run multiple copies of nbdkit. (See +L below). + +=item BPATHNAME + +This sets the path of the VMware VDDK distribution. + +VDDK uses this to load its own plugins, if this path is unspecified or +wrong then VDDK will work with reduced functionality. + +If the parameter is not given, then a hard-coded path determined at +compile time is used, see L below. + +=item BPORT + +Port used to establish an NFC connection to ESXi. Defaults to 902. + +(Only supported in VDDK ≥ 5.5.5 and ≥ 6.0.1) + +=item BPASSWORD + +Set the password to use when connecting to the remote server. + +Note that passing this on the command line is not secure on shared +machines. + +=item B + +Ask for the password (interactively) when nbdkit starts up. + +=item BFILENAME + +Read the password from the named file. This is the most secure method +to supply a password, as long as you set the permissions on the file +appropriately. + +=item BPORT + +The port on the VCenter/ESXi host. Defaults to 443. + +=item BHOSTNAME + +The hostname or IP address of VCenter or ESXi host. + +=item B + +Open the current link, not the entire chain. This corresponds to the +C flag. + +=item BMOREF + +The Managed Object Reference of the snapshot. + +=item BTHUMBPRINT + +The SSL (SHA1) thumbprint for validating the SSL certificate. + +The format is +C +(20 hex digit pairs). + +See L below for how to get this. + +=item BMODEB<:>MODEB<:>... + +List of one or more transport modes to use. Possible values include +‘nbd’, ‘nbdssl’, ‘san’, ‘hotadd’, ‘file’ (there may be others). If +not given, VDDK will try to choose the best transport mode. + +=item B + +Disable host caching. This corresponds to the +C flag. + +=item BUSERNAME + +The username to connect to the remote server as. + +=item BID + +The Managed Object Reference ("moref") of the virtual machine. + +For VMware ESXi hypervisors, this is a number (eg. C). +For VMware VCenter, this is a string beginning with C<"vm-">) +(eg. C). Across ESXi and vCenter the numbers are +different even for the same virtual machine. + +If you have libvirt E 3.7, the moref is available in the +L C output: + + $ virsh -c 'esx://esxi.example.com?no_verify=1' dumpxml guestname + ... + 2 + ... + +or: + + $ virsh -c 'vpx://vcenter.example.com/Datacenter/esxi.example.com?no_verify=1' \ + dumpxml guestname + ... + vm-16 + ... + +An alternative way to find the moref of a VM is using the +C script written by William Lam +(L +L). + +=item BAPIVER + +This parameter is ignored for backwards compatibility. + +=back + +=head1 EXAMPLES + +=head2 Open a local VMDK file + + nbdkit vddk file=/absolute/path/to/file.vmdk + +Note that when opening local files the C parameter B be +an absolute path. + +Because VDDK needs to take a lock on this file, the file must be on a +writable filesystem (unless you use the I<-r> option). + +=head2 Open a file on a remote VMware ESXi hypervisor + +Connect directly to a VMware ESXi hypervisor and export a particular +file: + + nbdkit vddk user=root password=+/tmp/rootpw \ + server=esxi.example.com thumbprint=xx:xx:xx:... \ + vm=moref=2 \ + file="[datastore1] Fedora/Fedora.vmdk" + +C and C must be specified. Use C +to provide the password securely in a file. + +C is the hostname of the ESXi server. C is the +thumb print for validating the SSL certificate. How to find the thumb +print of a server is described in L below. + +C is the Managed Object Reference ("moref") of the virtual +machine. To find this using L or the C +script, see L above. Note that it is different from the +moref used by vCenter, and is just a single number. + +C is the actual file you want to open, usually in the form +C<"[datastore] vmname/vmname.vmdk">. You can find this from +L as described in L above. + +=head2 Open a file on a remote VMware vCenter server + +Connect via VMware vCenter and export a particular file: + + nbdkit vddk user=root password=vmware \ + server=vcenter.example.com thumbprint=xx:xx:xx:... \ + vm=moref=vm-16 \ + file="[datastore1] Fedora/Fedora.vmdk" + +C and C must be specified. Use C +to provide the password securely in a file. + +C is the hostname of the vCenter server. C is the +thumb print for validating the SSL certificate. How to find the thumb +print of a server is described in L below. + +C is the Managed Object Reference ("moref") of the virtual +machine. To find this using L or the C +script, see L above. Note that it is different from the +moref used by ESXi, and always begins with the prefix C<"vm-">. + +C is the actual file you want to open, usually in the form +C<"[datastore] vmname/vmname.vmdk">. You can find this from +L as described in L above. + +=head1 THUMBPRINTS + +The thumbprint is a 20 byte string containing the SSL (SHA1) +fingerprint of the remote VMware server and it is required when making +a remote connection. There are two ways to obtain this. + +=head2 Extracting thumbprint from ESXi or vCenter server + +To extract the thumbprint, log in to the ESXi hypervisor shell and run +this command: + + # openssl x509 -in /etc/vmware/ssl/rui.crt -fingerprint -sha1 -noout + +For VMware vCenter servers the thumbprint is printed on the text +console of the server or is available by logging in to the server and +using this command: + + # openssl x509 -in /etc/vmware-vpx/ssl/rui.crt -fingerprint -sha1 -noout + +=head2 Trick: Get VDDK to tell you the thumbprint + +Another (easier) way to get the thumbprint of a server is to connect +to the server using a bogus thumbprint with debugging enabled: + + nbdkit -f -v vddk server=esxi.example.com [...] thumbprint=12 + qemu-img info nbd:localhost:10809 + +The nbdkit process will try to connect (and fail because the +thumbprint is wrong). However in the debug output will be a message +such as this: + + nbdkit: debug: VixDiskLibVim: Failed to verify SSL certificate: actual thumbprint=B2:31:BD:DE:9F:DB:9D:E0:78:EF:30:42:8A:41:B0:28:92:93:C8:DD expected=12 + +This gives you the server’s real thumbprint. Of course this method is +not secure since it allows a Man-in-the-Middle (MITM) attack. + +=head1 DUMP-PLUGIN OUTPUT + +To query more information about the plugin (and whether it is +working), use: + + nbdkit vddk --dump-plugin + +If the plugin is not present, not working or the library path is wrong +you will get an error. + +If it works the output will include: + +=over 4 + +=item C + +The compiled-in library path. Use C to override this +at runtime. + +=item C + +If this is printed then the C parameter is supported +by this build. + +=item C + +Prints the full path to the VDDK shared library. Since this requires +a glibc extension it may not be available in all builds of the plugin. + +=back + +=head1 DEBUGGING VDDK + +Debugging messages can be very helpful if you have problems connecting +to VMware servers, or to find the list of available transport modes, +or to diagnose SAN problems. + +Run nbdkit like this to see all debugging messages: + + nbdkit -f -v vddk file=FILENAME [...] + +=head1 NOTES + +=head2 Sector size limitation + +The VDDK plugin can only answer read/write requests on whole 512 byte +sector boundaries. This is because the VDDK Read and Write APIs only +take sector numbers. + +The plugin could be extended in future to support byte granularity, +but common NBD clients don't need it so it's not a priority. + +=head2 Threads + +Handling threads in the VDDK API is complex and does not map well to +any of the thread models offered by nbdkit (see +L). The plugin uses the nbdkit +C model, but technically even this is not +completely safe. This is a subject of future work. + +=head2 Export names + +For VMs with multiple disks, it would be nice to map the disk names to +NBD export names. However nbdkit core will need to be extended to +support this. + +=head2 Out of memory errors + +In the verbose log you may see errors like: + + nbdkit: vddk[3]: error: [NFC ERROR] NfcFssrvrProcessErrorMsg: + received NFC error 5 from server: Failed to allocate the + requested 2097176 bytes + +This seems especially common when there are multiple parallel +connections open to the VMware server. + +These can be caused by resource limits set on the VMware server. You +can increase the limit for the NFC service by editing +F and adjusting the +CmaxMemoryE> setting: + + + libnfcsvc.so + true + 50331648 + 10485760 + + +and restarting the C service: + + # /etc/init.d/hostd restart + +For more information see L. + +=head1 SUPPORTED VERSIONS OF VDDK + +This plugin requires VDDK E 5.1.1. + +It has been tested with all versions up to 6.7 (but should work with +future versions). + +VDDK E 6.0 should be used if possible. This is the first version +which added Flush support which is crucial for data integrity when +writing. + +=head1 SEE ALSO + +L, +L, +L, +L + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2013-2018 Red Hat Inc. diff --git a/plugins/vddk/vddk-structs.h b/plugins/vddk/vddk-structs.h new file mode 100644 index 0000000..8608787 --- /dev/null +++ b/plugins/vddk/vddk-structs.h @@ -0,0 +1,142 @@ +/* nbdkit + * Copyright (C) 2013-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* Types and structs that we pass to or return from the VDDK API. + * + * Updated to VDDK 6.7 + */ + +#ifndef NBDKIT_VDDK_STRUCTS_H +#define NBDKIT_VDDK_STRUCTS_H + +#include +#include + +typedef uint64_t VixError; +#define VIX_OK 0 + +#define VIXDISKLIB_FLAG_OPEN_UNBUFFERED 1 +#define VIXDISKLIB_FLAG_OPEN_SINGLE_LINK 2 +#define VIXDISKLIB_FLAG_OPEN_READ_ONLY 4 +#define VIXDISKLIB_SECTOR_SIZE 512 + +#define VIXDISKLIB_MIN_CHUNK_SIZE 128 +#define VIXDISKLIB_MAX_CHUNK_NUMBER (512*1024) + +typedef void *VixDiskLibConnection; +typedef void *VixDiskLibHandle; + +typedef void VixDiskLibGenericLogFunc (const char *fmt, va_list args); + +enum VixDiskLibCredType { + VIXDISKLIB_CRED_UID = 1, + VIXDISKLIB_CRED_SESSIONID = 2, + VIXDISKLIB_CRED_TICKETID = 3, + VIXDISKLIB_CRED_SSPI = 4, + VIXDISKLIB_CRED_UNKNOWN = 256 +}; + +enum VixDiskLibSpecType { + VIXDISKLIB_SPEC_VMX = 0, + VIXDISKLIB_SPEC_VSTORAGE_OBJECT = 1, + VIXDISKLIB_SPEC_UNKNOWN = 2 +}; + +struct VixDiskLibVStorageObjectSpec { + char *id; + char *datastoreMoRef; + char *ssId; +}; + +typedef struct VixDiskLibConnectParams { + char *vmxSpec; + char *serverName; + char *thumbPrint; + long reserved1; + enum VixDiskLibCredType credType; + union { + struct { + char *userName; + char *password; + } uid; + struct { + char *cookie; + char *userName; + char *key; + } sessionId; + void *reserved2; + } creds; + uint32_t port; + uint32_t nfcHostPort; + char *reserved3; + char reserved4[8]; + void *reserved5; + union { + struct VixDiskLibVStorageObjectSpec vStorageObjSpec; + } spec; + enum VixDiskLibSpecType specType; +} VixDiskLibConnectParams; + +struct VixDiskLibGeometry { + uint32_t cylinders; + uint32_t heads; + uint32_t sectors; +}; + +enum VixDiskLibAdapterType { + VIXDISKLIB_ADAPTER_IDE = 1, + VIXDISKLIB_ADAPTER_SCSI_BUSLOGIC = 2, + VIXDISKLIB_ADAPTER_SCSI_LSILOGIC = 3, + VIXDISKLIB_ADAPTER_UNKNOWN = 256 +}; + +typedef struct VixDiskLibInfo { + struct VixDiskLibGeometry biosGeo; + struct VixDiskLibGeometry physGeo; + uint64_t capacity; + enum VixDiskLibAdapterType adapterType; + int numLinks; + char *parentFileNameHint; + char *uuid; +} VixDiskLibInfo; + +typedef struct { + uint64_t offset; + uint64_t length; +} VixDiskLibBlock; + +typedef struct { + uint32_t numBlocks; + VixDiskLibBlock blocks[1]; +} VixDiskLibBlockList; + +#endif /* NBDKIT_VDDK_STRUCTS_H */ diff --git a/plugins/vddk/vddk.c b/plugins/vddk/vddk.c new file mode 100644 index 0000000..43a517f --- /dev/null +++ b/plugins/vddk/vddk.c @@ -0,0 +1,889 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#define NBDKIT_API_VERSION 2 + +#include + +#include "isaligned.h" +#include "minmax.h" +#include "rounding.h" + +#include "vddk-structs.h" + +/* Enable extra disk info debugging with: -D vddk.diskinfo=1 */ +int vddk_debug_diskinfo; + +/* Enable debugging of extents code with: -D vddk.extents=1 */ +int vddk_debug_extents; + +/* The VDDK APIs that we call. These globals are initialized when the + * plugin is loaded (by vddk_load). + */ +static char *(*VixDiskLib_GetErrorText) (VixError err, const char *unused); +static void (*VixDiskLib_FreeErrorText) (char *text); +static VixError (*VixDiskLib_InitEx) (uint32_t major, uint32_t minor, VixDiskLibGenericLogFunc *log_function, VixDiskLibGenericLogFunc *warn_function, VixDiskLibGenericLogFunc *panic_function, const char *lib_dir, const char *config_file); +static void (*VixDiskLib_Exit) (void); +static VixDiskLibConnectParams *(*VixDiskLib_AllocateConnectParams) (void); +static void (*VixDiskLib_FreeConnectParams) (VixDiskLibConnectParams *params); +static VixError (*VixDiskLib_ConnectEx) (const VixDiskLibConnectParams *params, char read_only, const char *snapshot_ref, const char *transport_modes, VixDiskLibConnection *connection); +static VixError (*VixDiskLib_Open) (const VixDiskLibConnection connection, const char *path, uint32_t flags, VixDiskLibHandle *handle); +static const char *(*VixDiskLib_GetTransportMode) (VixDiskLibHandle handle); +static VixError (*VixDiskLib_Close) (VixDiskLibHandle handle); +static VixError (*VixDiskLib_Disconnect) (VixDiskLibConnection connection); +static VixError (*VixDiskLib_GetInfo) (VixDiskLibHandle handle, VixDiskLibInfo **info); +static void (*VixDiskLib_FreeInfo) (VixDiskLibInfo *info); +static VixError (*VixDiskLib_Read) (VixDiskLibHandle handle, uint64_t start_sector, uint64_t nr_sectors, unsigned char *buf); +static VixError (*VixDiskLib_Write) (VixDiskLibHandle handle, uint64_t start_sector, uint64_t nr_sectors, const unsigned char *buf); +static VixError (*VixDiskLib_Flush) (VixDiskLibHandle handle); +static VixError (*VixDiskLib_QueryAllocatedBlocks) (VixDiskLibHandle diskHandle, uint64_t start_sector, uint64_t nr_sectors, uint64_t chunk_size, VixDiskLibBlockList **block_list); +static VixError (*VixDiskLib_FreeBlockList) (VixDiskLibBlockList *block_list); + +/* Parameters passed to InitEx. */ +#define VDDK_MAJOR 5 +#define VDDK_MINOR 1 + +static void *dl = NULL; /* dlopen handle */ +static int init_called = 0; /* was InitEx called */ + +static char *config = NULL; /* config */ +static const char *cookie = NULL; /* cookie */ +static const char *filename = NULL; /* file */ +static char *libdir = NULL; /* libdir */ +static int nfc_host_port = 0; /* nfchostport */ +static char *password = NULL; /* password */ +static int port = 0; /* port */ +static const char *server_name = NULL; /* server */ +static bool single_link = false; /* single-link */ +static const char *snapshot_moref = NULL; /* snapshot */ +static const char *thumb_print = NULL; /* thumbprint */ +static const char *transport_modes = NULL; /* transports */ +static bool unbuffered = false; /* unbuffered */ +static const char *username = NULL; /* user */ +static const char *vmx_spec = NULL; /* vm */ +static bool is_remote = false; + +#define VDDK_ERROR(err, fs, ...) \ + do { \ + char *vddk_err_msg; \ + vddk_err_msg = VixDiskLib_GetErrorText ((err), NULL); \ + nbdkit_error (fs ": %s", ##__VA_ARGS__, vddk_err_msg); \ + VixDiskLib_FreeErrorText (vddk_err_msg); \ + } while (0) + +#define DEBUG_CALL(fn, fs, ...) \ + nbdkit_debug ("VDDK call: %s (" fs ")", fn, ##__VA_ARGS__) + +static void +trim (char *str) +{ + size_t len = strlen (str); + + if (len > 0 && str[len-1] == '\n') + str[len-1] = '\0'; +} + +/* Turn log messages from the library into nbdkit_debug. */ +static void +debug_function (const char *fs, va_list args) +{ + char *str; + + if (vasprintf (&str, fs, args) == -1) { + nbdkit_debug ("lost debug message: %s", fs); + return; + } + + trim (str); + + nbdkit_debug ("%s", str); + free (str); +} + +/* Turn error messages from the library into nbdkit_error. */ +static void +error_function (const char *fs, va_list args) +{ + char *str; + + if (vasprintf (&str, fs, args) == -1) { + nbdkit_error ("lost error message: %s", fs); + return; + } + + trim (str); + + nbdkit_error ("%s", str); + free (str); +} + +/* Load and unload the plugin. */ +static void +vddk_load (void) +{ + static const char *sonames[] = { + /* Prefer the newest library in case multiple exist. */ + "libvixDiskLib.so.6", + "libvixDiskLib.so.5", + }; + size_t i; + char *orig_error = NULL; + + /* Load the library. */ + for (i = 0; i < sizeof sonames / sizeof sonames[0]; ++i) { + dl = dlopen (sonames[i], RTLD_NOW); + if (dl != NULL) + break; + if (i == 0) { + orig_error = dlerror (); + if (orig_error) + orig_error = strdup (orig_error); + } + } + if (dl == NULL) { + nbdkit_error ("%s\n\n" + "If '%s' is located on a non-standard path you may need to\n" + "set $LD_LIBRARY_PATH or edit /etc/ld.so.conf.\n\n" + "See the nbdkit-vddk-plugin(1) man page for details.", + orig_error ? : "(unknown error)", sonames[0]); + free (orig_error); + exit (EXIT_FAILURE); + } + free (orig_error); + + /* Non-optional symbols. I have checked that all these exist in at + * least VDDK 5.1.1 (2011) which is the earliest version of VDDK + * that we support. + */ +#define LOAD(sym) \ + do { \ + sym = dlsym (dl, #sym); \ + if (sym == NULL) { \ + nbdkit_error ("required VDDK symbol \"%s\" is missing: %s", \ + #sym, dlerror ()); \ + exit (EXIT_FAILURE); \ + } \ + } while (0) + LOAD (VixDiskLib_GetErrorText); + LOAD (VixDiskLib_FreeErrorText); + LOAD (VixDiskLib_InitEx); + LOAD (VixDiskLib_Exit); + LOAD (VixDiskLib_ConnectEx); + LOAD (VixDiskLib_Open); + LOAD (VixDiskLib_GetTransportMode); + LOAD (VixDiskLib_Close); + LOAD (VixDiskLib_Disconnect); + LOAD (VixDiskLib_GetInfo); + LOAD (VixDiskLib_FreeInfo); + LOAD (VixDiskLib_Read); + LOAD (VixDiskLib_Write); + LOAD (VixDiskLib_FreeConnectParams); +#undef LOAD + +#define LOAD_OPTIONAL(sym) sym = dlsym (dl, #sym) + /* Added in VDDK 6.0, this will be NULL in earlier versions. */ + LOAD_OPTIONAL (VixDiskLib_Flush); + + /* Added in VDDK 6.7, these will be NULL for earlier versions: */ + LOAD_OPTIONAL (VixDiskLib_QueryAllocatedBlocks); + LOAD_OPTIONAL (VixDiskLib_FreeBlockList); + LOAD_OPTIONAL (VixDiskLib_AllocateConnectParams); +#undef LOAD_OPTIONAL +} + +static void +vddk_unload (void) +{ + if (init_called) { + DEBUG_CALL ("VixDiskLib_Exit", ""); + VixDiskLib_Exit (); + } + if (dl) + dlclose (dl); + free (config); + free (libdir); + free (password); +} + +/* Configuration. */ +static int +vddk_config (const char *key, const char *value) +{ + if (strcmp (key, "config") == 0) { + /* See FILENAMES AND PATHS in nbdkit-plugin(3). */ + free (config); + config = nbdkit_realpath (value); + if (!config) + return -1; + } + else if (strcmp (key, "cookie") == 0) { + cookie = value; + } + else if (strcmp (key, "file") == 0) { + /* NB: Don't convert this to an absolute path, because in the + * remote case this can be a path located on the VMware server. + * For local paths the user must supply an absolute path. + */ + filename = value; + } + else if (strcmp (key, "libdir") == 0) { + /* See FILENAMES AND PATHS in nbdkit-plugin(3). */ + free (libdir); + libdir = nbdkit_realpath (value); + if (!libdir) + return -1; + } + else if (strcmp (key, "nfchostport") == 0) { + if (sscanf (value, "%d", &nfc_host_port) != 1) { + nbdkit_error ("cannot parse nfchostport: %s", value); + return -1; + } + } + else if (strcmp (key, "password") == 0) { + free (password); + if (nbdkit_read_password (value, &password) == -1) + return -1; + } + else if (strcmp (key, "port") == 0) { + if (sscanf (value, "%d", &port) != 1) { + nbdkit_error ("cannot parse port: %s", value); + return -1; + } + } + else if (strcmp (key, "server") == 0) { + server_name = value; + } + else if (strcmp (key, "single-link") == 0) { + int r = nbdkit_parse_bool (value); + + if (r == -1) + return -1; + single_link = r; + } + else if (strcmp (key, "snapshot") == 0) { + snapshot_moref = value; + } + else if (strcmp (key, "thumbprint") == 0) { + thumb_print = value; + } + else if (strcmp (key, "transports") == 0) { + transport_modes = value; + } + else if (strcmp (key, "unbuffered") == 0) { + int r = nbdkit_parse_bool (value); + + if (r == -1) + return -1; + unbuffered = r; + } + else if (strcmp (key, "user") == 0) { + username = value; + } + else if (strcmp (key, "vimapiver") == 0) { + /* Ignored for backwards compatibility. */ + } + else if (strcmp (key, "vm") == 0) { + vmx_spec = value; + } + else { + nbdkit_error ("unknown parameter '%s'", key); + return -1; + } + + return 0; +} + +static int +vddk_config_complete (void) +{ + VixError err; + + if (filename == NULL) { + nbdkit_error ("you must supply the file= parameter " + "after the plugin name on the command line"); + return -1; + } + + /* For remote connections, check all the parameters have been + * passed. Note that VDDK will segfault if parameters that it + * expects are NULL (and there's no real way to tell what parameters + * it is expecting). This implements the same test that the VDDK + * sample program does. + */ + is_remote = + vmx_spec || + server_name || + username || + password || + cookie || + thumb_print || + port || + nfc_host_port; + + if (is_remote) { +#define missing(test, param) \ + if (test) { \ + nbdkit_error ("remote connection requested, missing parameter: %s", \ + param); \ + return -1; \ + } + missing (!server_name, "server"); + missing (!username, "user"); + missing (!password, "password"); + missing (!vmx_spec, "vm"); +#undef missing + } + + /* Initialize VDDK library. */ + DEBUG_CALL ("VixDiskLib_InitEx", + "%d, %d, &debug_fn, &error_fn, &error_fn, %s, %s", + VDDK_MAJOR, VDDK_MINOR, + libdir ? : VDDK_LIBDIR, config ? : "NULL"); + err = VixDiskLib_InitEx (VDDK_MAJOR, VDDK_MINOR, + &debug_function, /* log function */ + &error_function, /* warn function */ + &error_function, /* panic function */ + libdir ? : VDDK_LIBDIR, config); + if (err != VIX_OK) { + VDDK_ERROR (err, "VixDiskLib_InitEx"); + exit (EXIT_FAILURE); + } + init_called = 1; + + return 0; +} + +#define vddk_config_help \ + "file= (required) The filename (eg. VMDK file) to serve.\n" \ + "Many optional parameters are supported, see nbdkit-vddk-plugin(3)." + +static void +vddk_dump_plugin (void) +{ + printf ("vddk_default_libdir=%s\n", VDDK_LIBDIR); + printf ("vddk_has_nfchostport=1\n"); + +#if defined(HAVE_DLADDR) + /* It would be nice to print the version of VDDK from the shared + * library, but VDDK does not provide it. Instead we can get the + * path to the library using the glibc extension dladdr, and then + * resolve symlinks using realpath. The final pathname should + * contain the version number. + */ + Dl_info info; + char *p; + if (dladdr (VixDiskLib_InitEx, &info) != 0 && + info.dli_fname != NULL && + (p = nbdkit_realpath (info.dli_fname)) != NULL) { + printf ("vddk_dll=%s\n", p); + free (p); + } +#endif +} + +/* XXX To really do threading correctly in accordance with the VDDK + * documentation, we must do all open/close calls from a single + * thread. This is a huge pain. + */ +#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS + +/* The per-connection handle. */ +struct vddk_handle { + VixDiskLibConnectParams *params; /* connection parameters */ + VixDiskLibConnection connection; /* connection */ + VixDiskLibHandle handle; /* disk handle */ +}; + +static inline VixDiskLibConnectParams * +allocate_connect_params (void) +{ + VixDiskLibConnectParams *ret; + + if (VixDiskLib_AllocateConnectParams != NULL) { + DEBUG_CALL ("VixDiskLib_AllocateConnectParams", ""); + ret = VixDiskLib_AllocateConnectParams (); + } + else + ret = calloc (1, sizeof (VixDiskLibConnectParams)); + + return ret; +} + +static inline void +free_connect_params (VixDiskLibConnectParams *params) +{ + /* Only use FreeConnectParams if AllocateConnectParams was + * originally called. Otherwise use free. + */ + if (VixDiskLib_AllocateConnectParams != NULL) { + DEBUG_CALL ("VixDiskLib_FreeConnectParams", "params"); + VixDiskLib_FreeConnectParams (params); + } + else + free (params); +} + +/* Create the per-connection handle. */ +static void * +vddk_open (int readonly) +{ + struct vddk_handle *h; + VixError err; + uint32_t flags; + + h = malloc (sizeof *h); + if (h == NULL) { + nbdkit_error ("malloc: %m"); + return NULL; + } + + h->params = allocate_connect_params (); + if (h->params == NULL) { + nbdkit_error ("allocate VixDiskLibConnectParams: %m"); + goto err0; + } + + if (is_remote) { + h->params->vmxSpec = (char *) vmx_spec; + h->params->serverName = (char *) server_name; + if (cookie == NULL) { + h->params->credType = VIXDISKLIB_CRED_UID; + h->params->creds.uid.userName = (char *) username; + h->params->creds.uid.password = password; + } + else { + h->params->credType = VIXDISKLIB_CRED_SESSIONID; + h->params->creds.sessionId.cookie = (char *) cookie; + h->params->creds.sessionId.userName = (char *) username; + h->params->creds.sessionId.key = password; + } + h->params->thumbPrint = (char *) thumb_print; + h->params->port = port; + h->params->nfcHostPort = nfc_host_port; + } + + /* XXX Some documentation suggests we should call + * VixDiskLib_PrepareForAccess here. It may be required for + * Advanced Transport modes, but I could not make it work with + * either ESXi or vCenter servers. + */ + + DEBUG_CALL ("VixDiskLib_ConnectEx", + "h->params, %d, %s, %s, &connection", + readonly, + snapshot_moref ? : "NULL", + transport_modes ? : "NULL"); + err = VixDiskLib_ConnectEx (h->params, + readonly, + snapshot_moref, + transport_modes, + &h->connection); + if (err != VIX_OK) { + VDDK_ERROR (err, "VixDiskLib_ConnectEx"); + goto err1; + } + + flags = 0; + if (readonly) + flags |= VIXDISKLIB_FLAG_OPEN_READ_ONLY; + if (single_link) + flags |= VIXDISKLIB_FLAG_OPEN_SINGLE_LINK; + if (unbuffered) + flags |= VIXDISKLIB_FLAG_OPEN_UNBUFFERED; + + DEBUG_CALL ("VixDiskLib_Open", + "connection, %s, %d, &handle", filename, flags); + err = VixDiskLib_Open (h->connection, filename, flags, &h->handle); + if (err != VIX_OK) { + VDDK_ERROR (err, "VixDiskLib_Open: %s", filename); + goto err2; + } + + nbdkit_debug ("transport mode: %s", + VixDiskLib_GetTransportMode (h->handle)); + + return h; + + err2: + DEBUG_CALL ("VixDiskLib_Disconnect", "connection"); + VixDiskLib_Disconnect (h->connection); + err1: + free_connect_params (h->params); + err0: + free (h); + return NULL; +} + +/* Free up the per-connection handle. */ +static void +vddk_close (void *handle) +{ + struct vddk_handle *h = handle; + + free_connect_params (h->params); + DEBUG_CALL ("VixDiskLib_Close", "handle"); + VixDiskLib_Close (h->handle); + DEBUG_CALL ("VixDiskLib_Disconnect", "connection"); + VixDiskLib_Disconnect (h->connection); + free (h); +} + +/* Get the file size. */ +static int64_t +vddk_get_size (void *handle) +{ + struct vddk_handle *h = handle; + VixDiskLibInfo *info; + VixError err; + uint64_t size; + + DEBUG_CALL ("VixDiskLib_GetInfo", "handle, &info"); + err = VixDiskLib_GetInfo (h->handle, &info); + if (err != VIX_OK) { + VDDK_ERROR (err, "VixDiskLib_GetInfo"); + return -1; + } + + size = info->capacity * (uint64_t)VIXDISKLIB_SECTOR_SIZE; + + if (vddk_debug_diskinfo) { + nbdkit_debug ("disk info: capacity: %" PRIu64 " (size: %" PRIi64 ")", + info->capacity, size); + nbdkit_debug ("disk info: biosGeo: C:%" PRIu32 " H:%" PRIu32 " S:%" PRIu32, + info->biosGeo.cylinders, + info->biosGeo.heads, + info->biosGeo.sectors); + nbdkit_debug ("disk info: physGeo: C:%" PRIu32 " H:%" PRIu32 " S:%" PRIu32, + info->physGeo.cylinders, + info->physGeo.heads, + info->physGeo.sectors); + nbdkit_debug ("disk info: adapter type: %d", + (int) info->adapterType); + nbdkit_debug ("disk info: num links: %d", info->numLinks); + nbdkit_debug ("disk info: parent filename hint: %s", + info->parentFileNameHint ? : "NULL"); + nbdkit_debug ("disk info: uuid: %s", + info->uuid ? : "NULL"); + } + + DEBUG_CALL ("VixDiskLib_FreeInfo", "info"); + VixDiskLib_FreeInfo (info); + + return (int64_t) size; +} + +/* Read data from the file. + * + * Note that reads have to be aligned to sectors (XXX). + */ +static int +vddk_pread (void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags) +{ + struct vddk_handle *h = handle; + VixError err; + + /* Align to sectors. */ + if (!IS_ALIGNED (offset, VIXDISKLIB_SECTOR_SIZE)) { + nbdkit_error ("read is not aligned to sectors"); + return -1; + } + if (!IS_ALIGNED (count, VIXDISKLIB_SECTOR_SIZE)) { + nbdkit_error ("read is not aligned to sectors"); + return -1; + } + offset /= VIXDISKLIB_SECTOR_SIZE; + count /= VIXDISKLIB_SECTOR_SIZE; + + DEBUG_CALL ("VixDiskLib_Read", + "handle, %" PRIu64 " sectors, %" PRIu32 " sectors, buffer", + offset, count); + err = VixDiskLib_Read (h->handle, offset, count, buf); + if (err != VIX_OK) { + VDDK_ERROR (err, "VixDiskLib_Read"); + return -1; + } + + return 0; +} + +static int vddk_flush (void *handle, uint32_t flags); + +/* Write data to the file. + * + * Note that writes have to be aligned to sectors (XXX). + */ +static int +vddk_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset, + uint32_t flags) +{ + const bool fua = flags & NBDKIT_FLAG_FUA; + struct vddk_handle *h = handle; + VixError err; + + /* Align to sectors. */ + if (!IS_ALIGNED (offset, VIXDISKLIB_SECTOR_SIZE)) { + nbdkit_error ("read is not aligned to sectors"); + return -1; + } + if (!IS_ALIGNED (count, VIXDISKLIB_SECTOR_SIZE)) { + nbdkit_error ("read is not aligned to sectors"); + return -1; + } + offset /= VIXDISKLIB_SECTOR_SIZE; + count /= VIXDISKLIB_SECTOR_SIZE; + + DEBUG_CALL ("VixDiskLib_Write", + "handle, %" PRIu64 " sectors, %" PRIu32 " sectors, buffer", + offset, count); + err = VixDiskLib_Write (h->handle, offset, count, buf); + if (err != VIX_OK) { + VDDK_ERROR (err, "VixDiskLib_Write"); + return -1; + } + + if (fua && vddk_flush (handle, 0) == -1) + return -1; + + return 0; +} + +/* Flush data to the file. */ +static int +vddk_flush (void *handle, uint32_t flags) +{ + struct vddk_handle *h = handle; + VixError err; + + /* The Flush call was not available in VDDK < 6.0 so this is simply + * ignored on earlier versions. + */ + if (VixDiskLib_Flush == NULL) + return 0; + + DEBUG_CALL ("VixDiskLib_Flush", "handle"); + err = VixDiskLib_Flush (h->handle); + if (err != VIX_OK) { + VDDK_ERROR (err, "VixDiskLib_Flush"); + return -1; + } + + return 0; +} + +static int +vddk_can_extents (void *handle) +{ + struct vddk_handle *h = handle; + VixError err; + VixDiskLibBlockList *block_list; + + /* This call was added in VDDK 6.7. In earlier versions the + * function pointer will be NULL and we cannot query extents. + */ + if (VixDiskLib_QueryAllocatedBlocks == NULL) { + nbdkit_debug ("can_extents: VixDiskLib_QueryAllocatedBlocks == NULL, " + "probably this is VDDK < 6.7"); + return 0; + } + + /* However even when the call is available it rarely works well so + * the best thing we can do here is to try the call and if it's + * non-functional return false. + */ + DEBUG_CALL ("VixDiskLib_QueryAllocatedBlocks", + "handle, 0, %d sectors, %d sectors", + VIXDISKLIB_MIN_CHUNK_SIZE, VIXDISKLIB_MIN_CHUNK_SIZE); + err = VixDiskLib_QueryAllocatedBlocks (h->handle, + 0, VIXDISKLIB_MIN_CHUNK_SIZE, + VIXDISKLIB_MIN_CHUNK_SIZE, + &block_list); + if (err == VIX_OK) { + DEBUG_CALL ("VixDiskLib_FreeBlockList", "block_list"); + VixDiskLib_FreeBlockList (block_list); + } + if (err != VIX_OK) { + char *errmsg = VixDiskLib_GetErrorText (err, NULL); + nbdkit_debug ("can_extents: VixDiskLib_QueryAllocatedBlocks test failed, " + "extents support will be disabled: " + "original error: %s", + errmsg); + VixDiskLib_FreeErrorText (errmsg); + return 0; + } + + return 1; +} + +static int +add_extent (struct nbdkit_extents *extents, + uint64_t *position, uint64_t next_position, bool is_hole) +{ + const uint32_t type = is_hole ? NBDKIT_EXTENT_HOLE|NBDKIT_EXTENT_ZERO : 0; + const uint64_t length = next_position - *position; + + assert (*position <= next_position); + if (*position == next_position) + return 0; + + if (vddk_debug_extents) + nbdkit_debug ("adding extent type %s at [%" PRIu64 "...%" PRIu64 "]", + is_hole ? "hole" : "allocated data", + *position, next_position-1); + if (nbdkit_add_extent (extents, *position, length, type) == -1) + return -1; + + *position = next_position; + return 0; +} + +static int +vddk_extents (void *handle, uint32_t count, uint64_t offset, uint32_t flags, + struct nbdkit_extents *extents) +{ + struct vddk_handle *h = handle; + bool req_one = flags & NBDKIT_FLAG_REQ_ONE; + uint64_t position, end, start_sector; + + position = offset; + end = offset + count; + + /* We can only query whole chunks. Therefore start with the first + * chunk before offset. + */ + start_sector = + ROUND_DOWN (offset, VIXDISKLIB_MIN_CHUNK_SIZE * VIXDISKLIB_SECTOR_SIZE) + / VIXDISKLIB_SECTOR_SIZE; + while (start_sector * VIXDISKLIB_SECTOR_SIZE < end) { + VixError err; + uint32_t i; + uint64_t nr_chunks, nr_sectors; + VixDiskLibBlockList *block_list; + + assert (IS_ALIGNED (start_sector, VIXDISKLIB_MIN_CHUNK_SIZE)); + + nr_chunks = + ROUND_UP (end - start_sector * VIXDISKLIB_SECTOR_SIZE, + VIXDISKLIB_MIN_CHUNK_SIZE * VIXDISKLIB_SECTOR_SIZE) + / (VIXDISKLIB_MIN_CHUNK_SIZE * VIXDISKLIB_SECTOR_SIZE); + nr_chunks = MIN (nr_chunks, VIXDISKLIB_MAX_CHUNK_NUMBER); + nr_sectors = nr_chunks * VIXDISKLIB_MIN_CHUNK_SIZE; + + DEBUG_CALL ("VixDiskLib_QueryAllocatedBlocks", + "handle, %" PRIu64 " sectors, %" PRIu64 " sectors, " + "%d sectors", + start_sector, nr_sectors, VIXDISKLIB_MIN_CHUNK_SIZE); + err = VixDiskLib_QueryAllocatedBlocks (h->handle, + start_sector, nr_sectors, + VIXDISKLIB_MIN_CHUNK_SIZE, + &block_list); + if (err != VIX_OK) { + VDDK_ERROR (err, "VixDiskLib_QueryAllocatedBlocks"); + return -1; + } + + for (i = 0; i < block_list->numBlocks; ++i) { + uint64_t blk_offset, blk_length; + + blk_offset = block_list->blocks[i].offset * VIXDISKLIB_SECTOR_SIZE; + blk_length = block_list->blocks[i].length * VIXDISKLIB_SECTOR_SIZE; + + /* The query returns allocated blocks. We must insert holes + * between the blocks as necessary. + */ + if (position < blk_offset && + add_extent (extents, &position, blk_offset, true) == -1) + goto error_in_add; + if (add_extent (extents, + &position, blk_offset + blk_length, false) == -1) { + error_in_add: + DEBUG_CALL ("VixDiskLib_FreeBlockList", "block_list"); + VixDiskLib_FreeBlockList (block_list); + return -1; + } + } + DEBUG_CALL ("VixDiskLib_FreeBlockList", "block_list"); + VixDiskLib_FreeBlockList (block_list); + + /* There's an implicit hole after the returned list of blocks, up + * to the end of the QueryAllocatedBlocks request. + */ + if (add_extent (extents, + &position, + (start_sector + nr_sectors) * VIXDISKLIB_SECTOR_SIZE, + true) == -1) + return -1; + + start_sector += nr_sectors; + + /* If one extent was requested, as long as we've added an extent + * overlapping the original offset we're done. + */ + if (req_one && position > offset) + break; + } + + return 0; +} + +static struct nbdkit_plugin plugin = { + .name = "vddk", + .longname = "VMware VDDK plugin", + .version = PACKAGE_VERSION, + .load = vddk_load, + .unload = vddk_unload, + .config = vddk_config, + .config_complete = vddk_config_complete, + .config_help = vddk_config_help, + .dump_plugin = vddk_dump_plugin, + .open = vddk_open, + .close = vddk_close, + .get_size = vddk_get_size, + .pread = vddk_pread, + .pwrite = vddk_pwrite, + .flush = vddk_flush, + .can_extents = vddk_can_extents, + .extents = vddk_extents, +}; + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/plugins/zero/Makefile.am b/plugins/zero/Makefile.am new file mode 100644 index 0000000..3d1f891 --- /dev/null +++ b/plugins/zero/Makefile.am @@ -0,0 +1,60 @@ +# nbdkit +# Copyright (C) 2017-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit-zero-plugin.pod + +plugin_LTLIBRARIES = nbdkit-zero-plugin.la + +nbdkit_zero_plugin_la_SOURCES = \ + zero.c \ + $(top_srcdir)/include/nbdkit-plugin.h + +nbdkit_zero_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/include +nbdkit_zero_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +nbdkit_zero_plugin_la_LDFLAGS = \ + -module -avoid-version -shared \ + -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms + +if HAVE_POD + +man_MANS = nbdkit-zero-plugin.1 +CLEANFILES += $(man_MANS) + +nbdkit-zero-plugin.1: nbdkit-zero-plugin.pod + $(PODWRAPPER) --section=1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + +endif HAVE_POD diff --git a/plugins/zero/Makefile.in b/plugins/zero/Makefile.in new file mode 100644 index 0000000..f69db73 --- /dev/null +++ b/plugins/zero/Makefile.in @@ -0,0 +1,879 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2017-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/plugins/zero/nbdkit-zero-plugin.pod b/plugins/zero/nbdkit-zero-plugin.pod new file mode 100644 index 0000000..2e07182 --- /dev/null +++ b/plugins/zero/nbdkit-zero-plugin.pod @@ -0,0 +1,33 @@ +=head1 NAME + +nbdkit-zero-plugin - nbdkit zero length plugin + +=head1 SYNOPSIS + + nbdkit zero + +=head1 DESCRIPTION + +C is a zero length plugin for L. It +presents a virtual device of length zero bytes. + +This plugin is mainly good for testing corner cases in nbdkit, the NBD +protocol and NBD clients. + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L. + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +Copyright (C) 2018 Red Hat Inc. diff --git a/plugins/zero/zero.c b/plugins/zero/zero.c new file mode 100644 index 0000000..49ce08e --- /dev/null +++ b/plugins/zero/zero.c @@ -0,0 +1,92 @@ +/* nbdkit + * Copyright (C) 2017-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include +#include +#include +#include + +#define NBDKIT_API_VERSION 2 +#include + +static int +zero_config (const char *key, const char *value) +{ + nbdkit_error ("unknown parameter '%s'", key); + return -1; +} + +/* No meaning, just used as the address for the handle. */ +static int zero; + +/* Create the per-connection handle. */ +static void * +zero_open (int readonly) +{ + return &zero; +} + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + +/* Get the disk size. */ +static int64_t +zero_get_size (void *handle) +{ + return 0; +} + +/* Ideally the read plugin would be optional. */ +static int +zero_pread (void *handle, void *buf, uint32_t count, uint64_t offset, + uint32_t flags) +{ + nbdkit_error ("unexpected call to pread"); + return -1; +} + +static struct nbdkit_plugin plugin = { + .name = "zero", + .version = PACKAGE_VERSION, + .config = zero_config, + .open = zero_open, + .get_size = zero_get_size, + .pread = zero_pread, + /* In this plugin, errno is preserved properly along error return + * paths from failed system calls. + */ + .errno_is_preserved = 1, +}; + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/podwrapper.pl.in b/podwrapper.pl.in new file mode 100755 index 0000000..9593ebe --- /dev/null +++ b/podwrapper.pl.in @@ -0,0 +1,514 @@ +#!/usr/bin/env perl +# podwrapper.pl +# @configure_input@ +# Copyright (C) 2010-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +use warnings; +use strict; + +use Pod::Usage; +use Getopt::Long; +use Pod::Man; +use Pod::Simple; +use Pod::Simple::Text; +use Pod::Simple::XHTML; +use File::Basename; + +# https://www.redhat.com/archives/libguestfs/2013-May/thread.html#00088 +eval { $Text::Wrap::huge = "overflow" }; + +=head1 NAME + +podwrapper.pl - generate documentation from POD input files + +=head1 SYNOPSIS + + EXTRA_DIST = foo.pod + + if HAVE_POD + + man_MANS = foo.1 + CLEANFILES += $(man_MANS) + + foo.1: foo.pod + $(PODWRAPPER) --section 1 --man $@ \ + --html $(top_builddir)/html/$@.html \ + $< + + endif HAVE_POD + +=head1 DESCRIPTION + +podwrapper.pl is a Perl script that generates various output formats +from POD input files that nbdkit uses for most documentation. + +You must specify one input file, and one or more output formats. The +output options are I<--man>, I<--html> and I<--text> (see below). + +In C files, use a variation of the boilerplate shown in +the L section above. + +For information about the POD format, see L. + +=head1 OPTIONS + +=over 4 + +=cut + +my $help; + +=item B<--help> + +Display brief help. + +=cut + +my $html; + +=item B<--html output.html> + +Write a web page to C. If this option is not +given, then no web page output is produced. + +=cut + +my @inserts; + +=item B<--insert filename:__PATTERN__> + +In the input file, replace the literal text C<__PATTERN__> with the +replacement file C. You can give this option multiple +times. + +The contents of C are treated as POD. +Compare and contrast with I<--verbatim>. + +Although it is conventional to use C<__...__> (double underscores) for +patterns, in fact you can use any string as the pattern. + +=cut + +my $man; + +=item B<--man output.n> + +Write a man page to C (C is the manual section number). +If this option is not given, then no man page output is produced. + +=cut + +my $name; + +=item B<--name name> + +Set the name of the man page. If not set, defaults to the basename +of the input file. + +=cut + +my $section; + +=item B<--section N> + +Set the section of the man page (a number such as C<1> for +command line utilities or C<3> for C API documentation). If +not set, defaults to C<1>. + +=cut + +my $text; + +=item B<--text output.txt> + +Write a text file to C. If this option is not +given, then no text output is produced. + +=cut + +my @verbatims; + +=item B<--verbatim filename:__PATTERN__> + +In the input file, replace the literal text C<__PATTERN__> with the +replacement file C. You can give this option multiple +times. + +The contents of C are inserted as verbatim text, and +are I interpreted as POD. +Compare and contrast with I<--insert>. + +Although it is conventional to use C<__...__> (double underscores) for +patterns, in fact you can use any string as the pattern. + +=cut + +# Clean up the program name. +my $progname = $0; +$progname =~ s{.*/}{}; + +# Parse options. +GetOptions ("help|?" => \$help, + "html=s" => \$html, + "insert=s" => \@inserts, + "man=s" => \$man, + "name=s" => \$name, + "section=s" => \$section, + "text=s" => \$text, + "verbatim=s" => \@verbatims, + ) or pod2usage (2); +pod2usage (1) if $help; + +die "$progname: missing argument: podwrapper input.pod\n" unless @ARGV == 1; +my $input = $ARGV[0]; + +# There should be at least one output. +die "$progname: $input: no output format specified. Use --man and/or --html and/or --text.\n" + unless defined $man || defined $html || defined $text; + +# Default for $name and $section. +$name = basename ($input, ".pod") unless defined $name; +$section = 1 unless defined $section; + +# Note that these @...@ are substituted by ./configure. +my $abs_top_srcdir = "@abs_top_srcdir@"; +my $abs_top_builddir = "@abs_top_builddir@"; +my $package_name = "@PACKAGE_NAME@"; +my $package_version = "@PACKAGE_VERSION@"; + +die "$progname: ./configure substitutions were not performed" + unless $abs_top_srcdir && $abs_top_builddir && + $package_name && $package_version; + +# Create a stable date (thanks Hilko Bengen). +my $date; +my $filename = "$abs_top_srcdir/.git"; +if (!$date && -d $filename) { + local $ENV{GIT_DIR} = $filename; + $_ = `git show -s --format=%ci`; + $date = $1 if /^(\d+-\d+-\d+)\s/; +} +if (!$date) { + my ($day, $month, $year) = (localtime)[3,4,5]; + $date = sprintf ("%04d-%02d-%02d", $year+1900, $month+1, $day); +} + +# Create a release string. +my $release = "$package_name-$package_version"; + +#print "input=$input\n"; +#print "name=$name\n"; +#print "section=$section\n"; +#print "date=$date\n"; + +# Read the input. +my $content = read_whole_file ($input); + +# Perform @inserts. +foreach (@inserts) { + my @a = split /:/, $_, 2; + die "$progname: $input: no colon in parameter of --insert\n" unless @a >= 2; + my $replacement = read_whole_file ($a[0]); + my $oldcontent = $content; + $content =~ s/$a[1]/$replacement/ge; + die "$progname: $input: could not find pattern '$a[1]' in input file\n" + if $content eq $oldcontent; +} + +# Turn external links to this man page into simple cross-section links. +$content =~ s,\QL<$name($section)/\E,L= 2; + my $replacement = read_verbatim_file ($a[0]); + my $oldcontent = $content; + $content =~ s/$a[1]/$replacement/ge; + die "$progname: $input: could not find pattern '$a[1]' in input file\n" + if $content eq $oldcontent; +} + +# There should be no =encoding line present in the content (we will add one). +die "$progname: $input: =encoding must not be present in input\n" + if $content =~ /^=encoding/m; + +$content =~ s/^=(.*)/\n=encoding utf8\n\n=$1/m; + +# Verify sections present / not present. +die "$progname: $input: missing NAME section\n" + if $content !~ /^=head1 NAME/m; +die "$progname: $input: missing DESCRIPTION section\n" + if $content !~ /^=head1 DESCRIPTION/m; +die "$progname: $input: missing AUTHOR or AUTHORS section\n" + unless $content =~ /^=head1 AUTHOR/m; +die "$progname: $input: missing SEE ALSO section\n" + unless $content =~ /^=head1 SEE ALSO/m; +die "$progname: $input: missing COPYRIGHT section\n" + unless $content =~ /^=head1 COPYRIGHT/m; +die "$progname: $input: BUGS is now added automatically, do not add it to the POD file\n" + if $content =~ /^=head1 (REPORTING )?BUGS/m; +die "$progname: $input: LICENSE is now added automatically, do not add it to the POD file\n" + if $content =~ /^=head1 LICENSE/m; + +# Check NAME section conformity. +my @lines = split /\n/, $content; +my @name; +foreach (@lines) { + push @name, $_ if /^=head1 NAME/../^=head1 (?!NAME)/ +} +shift @name; # remove =head1 and empty line +shift @name; # from beginning and end +pop @name; +pop @name; +die "$progname: $input: empty NAME section\n" + unless @name >= 1; +die "$progname: $input: NAME doesn't start with nbdkit\n" + unless $name[0] =~ m/^nbdkit/; +die "$progname: $input: NAME does not conform with Linux man pages standard\n" + if $name[0] !~ m/- [a-z]/ || $name[@name-1] =~ m/\.$/; + +# Add standard LICENSE section at the end. +$content .= +" + +=head1 LICENSE + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + +=over 4 + +=item * + +Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + +=item * + +Redistributions in binary form must reproduce the above copyright +notice, this list of conditions and the following disclaimer in the +documentation and/or other materials provided with the distribution. + +=item * + +Neither the name of Red Hat nor the names of its contributors may be +used to endorse or promote products derived from this software without +specific prior written permission. + +=back + +THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +SUCH DAMAGE. +"; + +# Check no over-long lines in the input. (As a special exception this +# is permitted in verbatim sections or if the line contains a URL). +@lines = split /\n/, $content; +foreach (@lines) { + die "$progname: $input: line too long:\n$_\n" + if length $_ > 76 && + substr ($_, 0, 1) ne ' ' && + ! m/https?:/; +} + +# Output man page. +SUBMAN: { + package Podwrapper::Man; + + use vars qw(@ISA $VERSION); + @ISA = qw(Pod::Man); + $VERSION = $package_version; + + # Override the L<> method. + sub cmd_l + { + my ($self, $attrs, $text) = @_; + return $text; + } +} + +if ($man) { + my $parser = Podwrapper::Man->new ( + name => $name, + release => $release, section => $section, + center => "NBDKIT", + date => $date, + stderr => 1, utf8 => 1 + ); + my $output; + $parser->no_errata_section (1); + $parser->complain_stderr (1); + $parser->output_string (\$output); + $parser->parse_string_document ($content) + or die "$progname: could not parse input document"; + open OUT, ">$man" or die "$progname: $man: $!"; + print OUT $output or die "$progname: $man: $!"; + close OUT or die "$progname: $man: $!"; + if ($parser->any_errata_seen) { + unlink $man; + die "$input: errors or warnings in this POD file, see messages above\n" + } + #print "$progname: wrote $man\n"; +} + +# Output HTML. +SUBHTML: { + # Subclass Pod::Simple::XHTML. See the documentation. + package Podwrapper::XHTML; + + use vars qw(@ISA $VERSION); + @ISA = qw(Pod::Simple::XHTML); + $VERSION = $package_version; + + sub is_an_nbdkit_page + { + local $_ = shift; + + return 1 if /^nbdkit/; + return 0; + } + + sub resolve_man_page_link + { + my $self = shift; + my $name = $_[0]; # eg. "nbdkit(1)", can be undef + my $anchor = $_[1]; # eg. "SYNOPSIS", can be undef + my $r = ""; + if (defined $name) { + return $self->SUPER::resolve_man_page_link (@_) + unless is_an_nbdkit_page ($name); + $name =~ s/\((.*)\)$/.$1/; + $r .= "$name.html"; + } + $r .= "#" . $self->idify ($anchor, 1) if defined $anchor; + $r; + } + + # For some reason Pod::Simple::XHTML usually cannot find a + # title for the page. This defaults the HTML field + # to the same as the man page name. + sub default_title { $name } +} + +if ($html) { + mkdir "$abs_top_builddir/html"; + + my $parser = Podwrapper::XHTML->new; + my $output; + $parser->no_errata_section (1); + $parser->complain_stderr (1); + $parser->output_string (\$output); + # Added in Pod::Simple 3.16, 2011-03-14. + eval { $parser->html_charset ("UTF-8") }; + $parser->html_css ("pod.css"); + $parser->index (1); + $parser->parse_string_document ($content); + + # Hack for Perl 5.16. + $output =~ s{/>pod.css<}{/>\n<}; + + open OUT, ">$html" or die "$progname: $html: $!"; + print OUT $output or die "$progname: $html: $!"; + close OUT or die "$progname: $html: $!"; + if ($parser->any_errata_seen) { + unlink $html; + die "$input: errors or warnings in this POD file, see messages above\n" + } + #print "$progname: wrote $html\n"; +} + +# Output text. +if ($text) { + my $parser = Pod::Simple::Text->new; + my $output; + $parser->no_errata_section (1); + $parser->complain_stderr (1); + $parser->output_string (\$output); + $parser->parse_string_document ($content); + open OUT, ">$text" or die "$progname: $text: $!"; + binmode OUT, ":utf8"; + print OUT $output or die "$progname: $text: $!"; + close OUT or die "$progname: $text: $!"; + if ($parser->any_errata_seen) { + unlink $text; + die "$input: errors or warnings in this POD file, see messages above\n" + } + #print "$progname: wrote $text\n"; +} + +sub read_whole_file +{ + my $input = shift; + local $/ = undef; + + open FILE, "<:encoding(UTF-8)", $input or die "$progname: $input: $!"; + $_ = <FILE>; + close FILE; + $_; +} + +sub read_verbatim_file +{ + my $input = shift; + my $r = ""; + + open FILE, "<:encoding(UTF-8)", $input or die "$progname: $input: $!"; + while (<FILE>) { + $r .= " $_"; + } + close FILE; + $r; +} + +=head1 SEE ALSO + +L<perlpod(1)>, +L<Pod::Simple(3pm)>. + +=head1 AUTHOR + +Richard W.M. Jones. + +=head1 COPYRIGHT + +Copyright (C) 2012-2018 Red Hat Inc. diff --git a/scripts/git.orderfile b/scripts/git.orderfile new file mode 100644 index 0000000..d81b750 --- /dev/null +++ b/scripts/git.orderfile @@ -0,0 +1,53 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# You can use this to change the ordering of files within patches to +# make them easier to follow. +# +# Use: +# git diff -O scripts/git.orderfile +# +# Or make the change permanently by doing: +# git config diff.orderFile scripts/git.orderfile + +# Documentation. +docs/* +*.pod + +# Build files. +configure.ac +Makefile.am + +# Header files. +*.h + +# Source files. +*.c diff --git a/server/Makefile.am b/server/Makefile.am new file mode 100644 index 0000000..9e13c03 --- /dev/null +++ b/server/Makefile.am @@ -0,0 +1,132 @@ +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = nbdkit.syms + +sbin_PROGRAMS = nbdkit + +nbdkit_SOURCES = \ + background.c \ + captive.c \ + cleanup.c \ + connections.c \ + crypto.c \ + debug.c \ + extents.c \ + filters.c \ + internal.h \ + locks.c \ + log.c \ + log-stderr.c \ + log-syslog.c \ + main.c \ + options.h \ + plugins.c \ + protocol.c \ + protocol-handshake.c \ + protocol-handshake-oldstyle.c \ + protocol-handshake-newstyle.c \ + quit.c \ + signals.c \ + socket-activation.c \ + sockets.c \ + threadlocal.c \ + usergroup.c \ + utils.c \ + $(top_srcdir)/include/nbdkit-plugin.h \ + $(top_srcdir)/include/nbdkit-filter.h + +nbdkit_CPPFLAGS = \ + -Dbindir=\"$(bindir)\" \ + -Dlibdir=\"$(libdir)\" \ + -Dmandir=\"$(mandir)\" \ + -Dplugindir=\"$(plugindir)\" \ + -Dfilterdir=\"$(filterdir)\" \ + -Dsbindir=\"$(sbindir)\" \ + -Dsysconfdir=\"$(sysconfdir)\" \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/common/protocol \ + -I$(top_srcdir)/common/utils +nbdkit_CFLAGS = \ + $(PTHREAD_CFLAGS) \ + $(WARNINGS_CFLAGS) \ + $(GNUTLS_CFLAGS) \ + $(LIBSELINUX_CFLAGS) \ + $(VALGRIND_CFLAGS) +nbdkit_LDADD = \ + $(GNUTLS_LIBS) \ + $(LIBSELINUX_LIBS) \ + $(DL_LIBS) \ + $(top_builddir)/common/protocol/libprotocol.la \ + $(top_builddir)/common/utils/libutils.la +nbdkit_LDFLAGS = \ + $(PTHREAD_LIBS) \ + $(DL_LDFLAGS) +if USE_LINKER_SCRIPT_FOR_SERVER +nbdkit_LDFLAGS += -Wl,--version-script=$(srcdir)/nbdkit.syms +endif + +# synopsis.c is generated from docs/synopsis.txt where it is also +# used to generate the man page. It is included in main.c. + +BUILT_SOURCES = synopsis.c +EXTRA_DIST += synopsis.c +nbdkit_DEPENDENCIES = synopsis.c +CLEANFILES += synopsis.c +main.c: synopsis.c +synopsis.c: $(top_srcdir)/docs/synopsis.txt + rm -f $@ $@-t + $(SED) -e 's/\(.*\)/"\1\\n"/g' $< > $@-t + mv $@-t $@ + +# pkg-config / pkgconf + +pkgconfigdir = $(libdir)/pkgconfig +pkgconfig_DATA = nbdkit.pc + +# Unit testing + +TESTS = test-utils + +check_PROGRAMS = test-utils + +test_utils_SOURCES = \ + test-utils.c \ + utils.c \ + cleanup.c \ + extents.c +test_utils_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/common/include +test_utils_CFLAGS = $(WARNINGS_CFLAGS) $(VALGRIND_CFLAGS) diff --git a/server/Makefile.in b/server/Makefile.in new file mode 100644 index 0000000..24582a6 --- /dev/null +++ b/server/Makefile.in @@ -0,0 +1,1824 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + + +VPATH = @srcdir@ +am__is_gnu_make = { \ + if test -z '$(MAKELEVEL)'; then \ + false; \ + elif test -n '$(MAKE_HOST)'; then \ + true; \ + elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \ + true; \ + else \ + false; \ + fi; \ +} +am__make_running_with_option = \ + case $${target_option-} in \ + ?) ;; \ + *) echo "am__make_running_with_option: internal error: invalid" \ + "target option '$${target_option-}' specified" >&2; \ + exit 1;; \ + esac; \ + has_opt=no; 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without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdarg.h> +#include <string.h> +#include <unistd.h> +#include <fcntl.h> + +#include "internal.h" + +/* True if we forked into the background (used to control log messages). */ +bool forked_into_background; + +/* Run as a background process. If foreground is set (ie. -f or + * equivalent) then this does nothing. Otherwise it forks into the + * background and sets forked_into_background. + */ +void +fork_into_background (void) +{ + pid_t pid; + + if (foreground) + return; + + pid = fork (); + if (pid == -1) { + perror ("fork"); + exit (EXIT_FAILURE); + } + + if (pid > 0) /* Parent process exits. */ + exit (EXIT_SUCCESS); + +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wunused-result" + chdir ("/"); +#pragma GCC diagnostic pop + + /* Close stdin/stdout and redirect to /dev/null. */ + close (0); + close (1); + open ("/dev/null", O_RDONLY); + open ("/dev/null", O_WRONLY); + + /* If not verbose, set stderr to the same as stdout as well. */ + if (!verbose) + dup2 (1, 2); + + forked_into_background = true; + debug ("forked into background (new pid = %d)", getpid ()); +} diff --git a/server/captive.c b/server/captive.c new file mode 100644 index 0000000..6971af2 --- /dev/null +++ b/server/captive.c @@ -0,0 +1,147 @@ +/* nbdkit + * Copyright (C) 2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdarg.h> +#include <string.h> +#include <unistd.h> +#include <sys/types.h> +#include <sys/wait.h> +#include <signal.h> + +#include "utils.h" + +#include "internal.h" + +/* Handle the --run option. If run is NULL, does nothing. If run is + * not NULL then run nbdkit as a captive subprocess of the command. + */ +void +run_command (void) +{ + FILE *fp; + char *cmd = NULL; + size_t len = 0; + int r; + pid_t pid; + + if (!run) + return; + + fp = open_memstream (&cmd, &len); + if (fp == NULL) { + perror ("open_memstream"); + exit (EXIT_FAILURE); + } + + /* Construct $nbd "URL". Unfortunately guestfish and qemu take + * different syntax, so try to guess which one we need. + */ + fprintf (fp, "nbd="); + if (strstr (run, "guestfish")) { + if (port) { + fprintf (fp, "nbd://localhost:"); + shell_quote (port, fp); + } + else if (unixsocket) { + fprintf (fp, "nbd://\\?socket="); + shell_quote (unixsocket, fp); + } + else + abort (); + } + else /* qemu */ { + if (port) { + fprintf (fp, "nbd:localhost:"); + shell_quote (port, fp); + } + else if (unixsocket) { + fprintf (fp, "nbd:unix:"); + shell_quote (unixsocket, fp); + } + else + abort (); + } + fprintf (fp, "\n"); + + /* Construct $port and $unixsocket. */ + fprintf (fp, "port="); + if (port) + shell_quote (port, fp); + fprintf (fp, "\n"); + fprintf (fp, "unixsocket="); + if (unixsocket) + shell_quote (unixsocket, fp); + fprintf (fp, "\n"); + + /* Add the --run command. Note we don't have to quote this. */ + fprintf (fp, "%s", run); + + if (fclose (fp) == EOF) { + perror ("memstream failed"); + exit (EXIT_FAILURE); + } + + /* Fork. Captive nbdkit runs as the child process. */ + pid = fork (); + if (pid == -1) { + perror ("fork"); + exit (EXIT_FAILURE); + } + + if (pid > 0) { /* Parent process is the run command. */ + r = system (cmd); + if (WIFEXITED (r)) + r = WEXITSTATUS (r); + else if (WIFSIGNALED (r)) { + fprintf (stderr, "%s: external command was killed by signal %d\n", + program_name, WTERMSIG (r)); + r = 1; + } + else if (WIFSTOPPED (r)) { + fprintf (stderr, "%s: external command was stopped by signal %d\n", + program_name, WSTOPSIG (r)); + r = 1; + } + + kill (pid, SIGTERM); /* Kill captive nbdkit. */ + + _exit (r); + } + + free (cmd); + + debug ("forked into background (new pid = %d)", getpid ()); +} diff --git a/server/cleanup.c b/server/cleanup.c new file mode 100644 index 0000000..292f1ce --- /dev/null +++ b/server/cleanup.c @@ -0,0 +1,58 @@ +/* nbdkit + * Copyright (C) 2013-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdarg.h> +#include <string.h> + +#include "internal.h" + +void +cleanup_free (void *ptr) +{ + free (* (void **) ptr); +} + +void +cleanup_extents_free (void *ptr) +{ + nbdkit_extents_free (* (void **) ptr); +} + +void +cleanup_unlock (pthread_mutex_t **ptr) +{ + pthread_mutex_unlock (*ptr); +} diff --git a/server/connections.c b/server/connections.c new file mode 100644 index 0000000..a30a541 --- /dev/null +++ b/server/connections.c @@ -0,0 +1,386 @@ +/* nbdkit + * Copyright (C) 2013-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> + +#include "internal.h" + +/* Default number of parallel requests. */ +#define DEFAULT_PARALLEL_REQUESTS 16 + +static struct connection *new_connection (int sockin, int sockout, + int nworkers); +static void free_connection (struct connection *conn); + +/* Don't call these raw socket functions directly. Use conn->recv etc. */ +static int raw_recv (struct connection *, void *buf, size_t len); +static int raw_send (struct connection *, const void *buf, size_t len); +static void raw_close (struct connection *); + +int +connection_set_handle (struct connection *conn, size_t i, void *handle) +{ + size_t j; + + if (i < conn->nr_handles) + conn->handles[i] = handle; + else { + j = conn->nr_handles; + conn->nr_handles = i+1; + conn->handles = realloc (conn->handles, + conn->nr_handles * sizeof (void *)); + if (conn->handles == NULL) { + perror ("realloc"); + conn->nr_handles = 0; + return -1; + } + for (; j < i; ++j) + conn->handles[j] = NULL; + conn->handles[i] = handle; + } + return 0; +} + +void * +connection_get_handle (struct connection *conn, size_t i) +{ + if (i < conn->nr_handles) + return conn->handles[i]; + else + return NULL; +} + +int +connection_get_status (struct connection *conn) +{ + int r; + + if (conn->nworkers) + pthread_mutex_lock (&conn->status_lock); + r = conn->status; + if (conn->nworkers) + pthread_mutex_unlock (&conn->status_lock); + return r; +} + +/* Update the status if the new value is lower than the existing value. + * For convenience, return the incoming value. + */ +int +connection_set_status (struct connection *conn, int value) +{ + if (conn->nworkers) + pthread_mutex_lock (&conn->status_lock); + if (value < conn->status) + conn->status = value; + if (conn->nworkers) + pthread_mutex_unlock (&conn->status_lock); + return value; +} + +struct worker_data { + struct connection *conn; + char *name; +}; + +static void * +connection_worker (void *data) +{ + struct worker_data *worker = data; + struct connection *conn = worker->conn; + char *name = worker->name; + + debug ("starting worker thread %s", name); + threadlocal_new_server_thread (); + threadlocal_set_name (name); + free (worker); + + while (!quit && connection_get_status (conn) > 0) + protocol_recv_request_send_reply (conn); + debug ("exiting worker thread %s", threadlocal_get_name ()); + free (name); + return NULL; +} + +static int +_handle_single_connection (int sockin, int sockout) +{ + const char *plugin_name; + int ret = -1, r; + struct connection *conn; + int nworkers = threads ? threads : DEFAULT_PARALLEL_REQUESTS; + pthread_t *workers = NULL; + + if (backend->thread_model (backend) < NBDKIT_THREAD_MODEL_PARALLEL || + nworkers == 1) + nworkers = 0; + conn = new_connection (sockin, sockout, nworkers); + if (!conn) + goto done; + + lock_request (conn); + r = backend->open (backend, conn, readonly); + unlock_request (conn); + if (r == -1) + goto done; + + /* NB: because of an asynchronous exit backend can be set to NULL at + * just about any time. + */ + if (backend) + plugin_name = backend->plugin_name (backend); + else + plugin_name = "(unknown)"; + threadlocal_set_name (plugin_name); + + /* Prepare (for filters), called just after open. */ + lock_request (conn); + if (backend) + r = backend->prepare (backend, conn); + else + r = 0; + unlock_request (conn); + if (r == -1) + goto done; + + /* Handshake. */ + if (protocol_handshake (conn) == -1) + goto done; + + if (!nworkers) { + /* No need for a separate thread. */ + debug ("handshake complete, processing requests serially"); + while (!quit && connection_get_status (conn) > 0) + protocol_recv_request_send_reply (conn); + } + else { + /* Create thread pool to process requests. */ + debug ("handshake complete, processing requests with %d threads", + nworkers); + workers = calloc (nworkers, sizeof *workers); + if (!workers) { + perror ("malloc"); + goto done; + } + + for (nworkers = 0; nworkers < conn->nworkers; nworkers++) { + struct worker_data *worker = malloc (sizeof *worker); + int err; + + if (!worker) { + perror ("malloc"); + connection_set_status (conn, -1); + goto wait; + } + if (asprintf (&worker->name, "%s.%d", plugin_name, nworkers) < 0) { + perror ("asprintf"); + connection_set_status (conn, -1); + free (worker); + goto wait; + } + worker->conn = conn; + err = pthread_create (&workers[nworkers], NULL, connection_worker, + worker); + if (err) { + errno = err; + perror ("pthread_create"); + connection_set_status (conn, -1); + free (worker); + goto wait; + } + } + + wait: + while (nworkers) + pthread_join (workers[--nworkers], NULL); + free (workers); + } + + /* Finalize (for filters), called just before close. */ + lock_request (conn); + if (backend) + r = backend->finalize (backend, conn); + else + r = 0; + unlock_request (conn); + if (r == -1) + goto done; + + ret = connection_get_status (conn); + done: + free_connection (conn); + return ret; +} + +int +handle_single_connection (int sockin, int sockout) +{ + int r; + + lock_connection (); + r = _handle_single_connection (sockin, sockout); + unlock_connection (); + + return r; +} + +static struct connection * +new_connection (int sockin, int sockout, int nworkers) +{ + struct connection *conn; + + conn = calloc (1, sizeof *conn); + if (conn == NULL) { + perror ("malloc"); + return NULL; + } + + conn->status = 1; + conn->nworkers = nworkers; + conn->sockin = sockin; + conn->sockout = sockout; + pthread_mutex_init (&conn->request_lock, NULL); + pthread_mutex_init (&conn->read_lock, NULL); + pthread_mutex_init (&conn->write_lock, NULL); + pthread_mutex_init (&conn->status_lock, NULL); + + conn->recv = raw_recv; + conn->send = raw_send; + conn->close = raw_close; + + return conn; +} + +static void +free_connection (struct connection *conn) +{ + if (!conn) + return; + + conn->close (conn); + + /* Don't call the plugin again if quit has been set because the main + * thread will be in the process of unloading it. The plugin.unload + * callback should always be called. + */ + if (!quit) { + if (conn->nr_handles > 0 && conn->handles[0]) { + lock_request (conn); + backend->close (backend, conn); + unlock_request (conn); + } + } + + pthread_mutex_destroy (&conn->request_lock); + pthread_mutex_destroy (&conn->read_lock); + pthread_mutex_destroy (&conn->write_lock); + pthread_mutex_destroy (&conn->status_lock); + + free (conn->handles); + free (conn); +} + +/* Write buffer to conn->sockout and either succeed completely + * (returns 0) or fail (returns -1). + */ +static int +raw_send (struct connection *conn, const void *vbuf, size_t len) +{ + int sock = conn->sockout; + const char *buf = vbuf; + ssize_t r; + + while (len > 0) { + r = write (sock, buf, len); + if (r == -1) { + if (errno == EINTR || errno == EAGAIN) + continue; + return -1; + } + buf += r; + len -= r; + } + + return 0; +} + +/* Read buffer from conn->sockin and either succeed completely + * (returns > 0), read an EOF (returns 0), or fail (returns -1). + */ +static int +raw_recv (struct connection *conn, void *vbuf, size_t len) +{ + int sock = conn->sockin; + char *buf = vbuf; + ssize_t r; + bool first_read = true; + + while (len > 0) { + r = read (sock, buf, len); + if (r == -1) { + if (errno == EINTR || errno == EAGAIN) + continue; + return -1; + } + if (r == 0) { + if (first_read) + return 0; + /* Partial record read. This is an error. */ + errno = EBADMSG; + return -1; + } + first_read = false; + buf += r; + len -= r; + } + + return 1; +} + +/* There's no place in the NBD protocol to send back errors from + * close, so this function ignores errors. + */ +static void +raw_close (struct connection *conn) +{ + if (conn->sockin >= 0) + close (conn->sockin); + if (conn->sockout >= 0 && conn->sockin != conn->sockout) + close (conn->sockout); +} diff --git a/server/crypto.c b/server/crypto.c new file mode 100644 index 0000000..3ca874e --- /dev/null +++ b/server/crypto.c @@ -0,0 +1,550 @@ +/* nbdkit + * Copyright (C) 2017 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdarg.h> +#include <stdint.h> +#include <stdbool.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> +#include <fcntl.h> +#include <limits.h> +#include <errno.h> +#include <sys/types.h> +#include <assert.h> + +#include "internal.h" + +#ifdef HAVE_GNUTLS + +#include <gnutls/gnutls.h> + +static int crypto_auth; +#define CRYPTO_AUTH_CERTIFICATES 1 +#define CRYPTO_AUTH_PSK 2 + +static gnutls_certificate_credentials_t x509_creds; +static gnutls_psk_server_credentials_t psk_creds; + +static void print_gnutls_error (int err, const char *fs, ...) + __attribute__((format (printf, 2, 3))); + +static void +print_gnutls_error (int err, const char *fs, ...) +{ + va_list args; + + fprintf (stderr, "%s: GnuTLS error: ", program_name); + + va_start (args, fs); + vfprintf (stderr, fs, args); + va_end (args); + + fprintf (stderr, ": %s\n", gnutls_strerror (err)); +} + +/* Try to load certificates from 'path'. Returns true if successful. + * If it's not a certicate directory it returns false. Exits on + * other errors. + */ +static int +load_certificates (const char *path) +{ + CLEANUP_FREE char *ca_cert_filename = NULL; + CLEANUP_FREE char *server_cert_filename = NULL; + CLEANUP_FREE char *server_key_filename = NULL; + CLEANUP_FREE char *ca_crl_filename = NULL; + int err; + + if (asprintf (&ca_cert_filename, "%s/ca-cert.pem", path) == -1) { + perror ("asprintf"); + exit (EXIT_FAILURE); + } + if (asprintf (&server_cert_filename, "%s/server-cert.pem", path) == -1) { + perror ("asprintf"); + exit (EXIT_FAILURE); + } + if (asprintf (&server_key_filename, "%s/server-key.pem", path) == -1) { + perror ("asprintf"); + exit (EXIT_FAILURE); + } + if (asprintf (&ca_crl_filename, "%s/ca-crl.pem", path) == -1) { + perror ("asprintf"); + exit (EXIT_FAILURE); + } + + /* Our test for a certificate directory is that ca-cert.pem, + * server-cert.pem and server-key.pem must all exist in the path. + */ + if (access (ca_cert_filename, R_OK) == -1) + return 0; + if (access (server_cert_filename, R_OK) == -1) + return 0; + if (access (server_key_filename, R_OK) == -1) + return 0; + + /* Any problem past here is a hard error. */ + + err = gnutls_certificate_allocate_credentials (&x509_creds); + if (err < 0) { + print_gnutls_error (err, "allocating credentials"); + exit (EXIT_FAILURE); + } + err = gnutls_certificate_set_x509_trust_file (x509_creds, ca_cert_filename, + GNUTLS_X509_FMT_PEM); + if (err < 0) { + print_gnutls_error (err, "loading %s", ca_cert_filename); + exit (EXIT_FAILURE); + } + + if (access (ca_crl_filename, R_OK) == 0) { + err = gnutls_certificate_set_x509_crl_file (x509_creds, ca_crl_filename, + GNUTLS_X509_FMT_PEM); + if (err < 0) { + print_gnutls_error (err, "loading %s", ca_crl_filename); + exit (EXIT_FAILURE); + } + } + + err = gnutls_certificate_set_x509_key_file (x509_creds, + server_cert_filename, + server_key_filename, + GNUTLS_X509_FMT_PEM); + if (err < 0) { + print_gnutls_error (err, "loading server certificate and key (%s, %s)", + server_cert_filename, server_key_filename); + exit (EXIT_FAILURE); + } + + debug ("successfully loaded TLS certificates from %s", path); + return 1; +} + +static int +start_certificates (void) +{ + /* Try to locate the certificates directory and load them. */ + if (tls_certificates_dir == NULL) { + const char *home; + CLEANUP_FREE char *path = NULL; + + if (geteuid () != 0) { + home = getenv ("HOME"); + if (home) { + if (asprintf (&path, "%s/.pki/%s", home, PACKAGE_NAME) == -1) { + perror ("asprintf"); + exit (EXIT_FAILURE); + } + if (load_certificates (path)) + goto found_certificates; + free (path); + if (asprintf (&path, "%s/.config/pki/%s", home, PACKAGE_NAME) == -1) { + perror ("asprintf"); + exit (EXIT_FAILURE); + } + if (load_certificates (path)) + goto found_certificates; + } + } + else { /* geteuid () == 0 */ + if (load_certificates (root_tls_certificates_dir)) + goto found_certificates; + } + } + else { + if (load_certificates (tls_certificates_dir)) + goto found_certificates; + } + return -1; + + found_certificates: +#ifdef HAVE_GNUTLS_CERTIFICATE_SET_KNOWN_DH_PARAMS + gnutls_certificate_set_known_dh_params (x509_creds, GNUTLS_SEC_PARAM_MEDIUM); +#endif + return 0; +} + +static int +start_psk (void) +{ + int err; + CLEANUP_FREE char *abs_psk_file = NULL; + + /* Make sure the path to the PSK file is absolute. */ + abs_psk_file = realpath (tls_psk, NULL); + if (abs_psk_file == NULL) { + perror (tls_psk); + exit (EXIT_FAILURE); + } + + err = gnutls_psk_allocate_server_credentials (&psk_creds); + if (err < 0) { + print_gnutls_error (err, "allocating PSK credentials"); + exit (EXIT_FAILURE); + } + + /* Note that this function makes a copy of the string. + * CLEANUP_FREE macro above will free abs_psk_file when + * we return, but this is safe. + */ + gnutls_psk_set_server_credentials_file (psk_creds, abs_psk_file); + + return 0; +} + +/* Initialize crypto. This also handles the command line parameters + * and loading the server certificate. + */ +void +crypto_init (bool tls_set_on_cli) +{ + int err, r; + const char *what; + + err = gnutls_global_init (); + if (err < 0) { + print_gnutls_error (err, "initializing GnuTLS"); + exit (EXIT_FAILURE); + } + + if (tls == 0) /* --tls=off */ + return; + + /* --tls-psk overrides certificates. */ + if (tls_psk != NULL) { + what = "Pre-Shared Keys (PSK)"; + r = start_psk (); + if (r == 0) + crypto_auth = CRYPTO_AUTH_PSK; + } + else { + what = "X.509 certificates"; + r = start_certificates (); + if (r == 0) + crypto_auth = CRYPTO_AUTH_CERTIFICATES; + } + + if (r == 0) { + debug ("TLS enabled using: %s", what); + return; + } + + /* If we get here, we didn't manage to load the PSK file / + * certificates. If --tls=require was given on the command line + * then that's a problem. + */ + if (tls == 2) { /* --tls=require */ + fprintf (stderr, + "%s: --tls=require but could not load TLS certificates.\n" + "Try setting ‘--tls-certificates=/path/to/certificates’ or read\n" + "the \"TLS\" section in nbdkit(1).\n", + program_name); + exit (EXIT_FAILURE); + } + + /* If --tls=on was given on the command line, warn before we turn + * TLS off. + */ + if (tls == 1 && tls_set_on_cli) { /* explicit --tls=on */ + fprintf (stderr, + "%s: warning: --tls=on but could not load TLS certificates.\n" + "TLS will be disabled and TLS connections will be rejected.\n" + "Try setting ‘--tls-certificates=/path/to/certificates’ or read\n" + "the \"TLS\" section in nbdkit(1).\n", + program_name); + } + + tls = 0; + debug ("TLS disabled: could not load TLS certificates"); +} + +void +crypto_free (void) +{ + if (tls > 0) { + switch (crypto_auth) { + case CRYPTO_AUTH_CERTIFICATES: + gnutls_certificate_free_credentials (x509_creds); + break; + case CRYPTO_AUTH_PSK: + gnutls_psk_free_server_credentials (psk_creds); + break; + } + } + + gnutls_global_deinit (); +} + +/* Read buffer from GnuTLS and either succeed completely + * (returns > 0), read an EOF (returns 0), or fail (returns -1). + */ +static int +crypto_recv (struct connection *conn, void *vbuf, size_t len) +{ + gnutls_session_t *session = conn->crypto_session; + char *buf = vbuf; + ssize_t r; + bool first_read = true; + + assert (session != NULL); + + while (len > 0) { + r = gnutls_record_recv (*session, buf, len); + if (r < 0) { + if (r == GNUTLS_E_INTERRUPTED || r == GNUTLS_E_AGAIN) + continue; + nbdkit_error ("gnutls_record_recv: %s", gnutls_strerror (r)); + errno = EIO; + return -1; + } + if (r == 0) { + if (first_read) + return 0; + /* Partial record read. This is an error. */ + errno = EBADMSG; + return -1; + } + first_read = false; + buf += r; + len -= r; + } + + return 1; +} + +/* Write buffer to GnuTLS and either succeed completely + * (returns 0) or fail (returns -1). + */ +static int +crypto_send (struct connection *conn, const void *vbuf, size_t len) +{ + gnutls_session_t *session = conn->crypto_session; + const char *buf = vbuf; + ssize_t r; + + assert (session != NULL); + + while (len > 0) { + r = gnutls_record_send (*session, buf, len); + if (r < 0) { + if (r == GNUTLS_E_INTERRUPTED || r == GNUTLS_E_AGAIN) + continue; + return -1; + } + buf += r; + len -= r; + } + + return 0; +} + +/* There's no place in the NBD protocol to send back errors from + * close, so this function ignores errors. + */ +static void +crypto_close (struct connection *conn) +{ + gnutls_session_t *session = conn->crypto_session; + int sockin, sockout; + + assert (session != NULL); + + gnutls_transport_get_int2 (*session, &sockin, &sockout); + + gnutls_bye (*session, GNUTLS_SHUT_RDWR); + + if (sockin >= 0) + close (sockin); + if (sockout >= 0 && sockin != sockout) + close (sockout); + + gnutls_deinit (*session); + free (session); + conn->crypto_session = NULL; +} + +/* Upgrade an existing connection to TLS. Also this should do access + * control if enabled. The protocol code ensures this function can + * only be called once per connection. + */ +int +crypto_negotiate_tls (struct connection *conn, int sockin, int sockout) +{ + gnutls_session_t *session; + CLEANUP_FREE char *priority = NULL; + int err; + + /* Create the GnuTLS session. */ + session = malloc (sizeof *session); + if (session == NULL) { + nbdkit_error ("malloc: %m"); + return -1; + } + + err = gnutls_init (session, GNUTLS_SERVER); + if (err < 0) { + nbdkit_error ("gnutls_init: %s", gnutls_strerror (err)); + free (session); + return -1; + } + + switch (crypto_auth) { + case CRYPTO_AUTH_CERTIFICATES: + /* Associate the session with the server credentials (key, cert). */ + err = gnutls_credentials_set (*session, GNUTLS_CRD_CERTIFICATE, + x509_creds); + if (err < 0) { + nbdkit_error ("gnutls_credentials_set: %s", gnutls_strerror (err)); + goto error; + } + + /* If verify peer is enabled, tell GnuTLS to request the client + * certificates. (Note the default is to not request or verify + * certificates). + */ + if (tls_verify_peer) { +#ifdef HAVE_GNUTLS_SESSION_SET_VERIFY_CERT + gnutls_certificate_server_set_request (*session, GNUTLS_CERT_REQUEST); + gnutls_session_set_verify_cert (*session, NULL, 0); +#else + nbdkit_error ("--tls-verify-peer: " + "GnuTLS >= 3.4.6 is required for this feature"); + goto error; +#endif + } + + priority = strdup (TLS_PRIORITY); + if (priority == NULL) { + nbdkit_error ("strdup: %m"); + goto error; + } + break; + + case CRYPTO_AUTH_PSK: + /* Associate the session with the server PSK credentials. */ + err = gnutls_credentials_set (*session, GNUTLS_CRD_PSK, psk_creds); + if (err < 0) { + nbdkit_error ("gnutls_credentials_set: %s", gnutls_strerror (err)); + goto error; + } + + if (asprintf (&priority, + "%s:+ECDHE-PSK:+DHE-PSK:+PSK", TLS_PRIORITY) == -1) { + nbdkit_error ("asprintf: %m"); + goto error; + } + break; + + default: + abort (); + } + + assert (priority != NULL); + err = gnutls_priority_set_direct (*session, priority, NULL); + if (err < 0) { + nbdkit_error ("failed to set TLS session priority to %s: %s", + priority, gnutls_strerror (err)); + goto error; + } + + /* Set up GnuTLS so it reads and writes on the raw sockets. */ + gnutls_transport_set_int2 (*session, sockin, sockout); + + /* Perform the handshake. */ + debug ("starting TLS handshake"); + gnutls_handshake_set_timeout (*session, + GNUTLS_DEFAULT_HANDSHAKE_TIMEOUT); + + do { + err = gnutls_handshake (*session); + } while (err < 0 && gnutls_error_is_fatal (err) == 0); + if (err < 0) { + nbdkit_error ("gnutls_handshake: %s", gnutls_strerror (err)); + goto error; + } + debug ("TLS handshake completed"); + + /* Set up the connection recv/send/close functions so they call + * GnuTLS wrappers instead. + */ + conn->crypto_session = session; + conn->recv = crypto_recv; + conn->send = crypto_send; + conn->close = crypto_close; + return 0; + + error: + gnutls_deinit (*session); + free (session); + return -1; +} + +#else /* !HAVE_GNUTLS */ + +/* GnuTLS was not available at compile time. These are stub versions + * of the above functions which either do nothing or report errors as + * appropriate. + */ + +void +crypto_init (bool tls_set_on_cli) +{ + if (tls > 0) { + fprintf (stderr, + "%s: TLS cannot be enabled because " + "this binary was compiled without GnuTLS.\n", + program_name); + exit (EXIT_FAILURE); + } + + tls = 0; + debug ("TLS disabled: nbdkit was not compiled with GnuTLS support"); +} + +void +crypto_free (void) +{ + /* nothing */ +} + +int +crypto_negotiate_tls (struct connection *conn, int sockin, int sockout) +{ + /* Should never be called because tls == 0. */ + abort (); +} + +#endif /* !HAVE_GNUTLS */ diff --git a/server/debug.c b/server/debug.c new file mode 100644 index 0000000..cf51194 --- /dev/null +++ b/server/debug.c @@ -0,0 +1,102 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdarg.h> +#include <string.h> +#include <errno.h> + +#include "internal.h" + +/* Called with flockfile (stderr) taken. */ +static void +prologue (void) +{ + const char *name = threadlocal_get_name (); + size_t instance_num = threadlocal_get_instance_num (); + + fprintf (stderr, "%s: ", program_name); + + if (name) { + fprintf (stderr, "%s", name); + if (instance_num > 0) + fprintf (stderr, "[%zu]", instance_num); + fprintf (stderr, ": "); + } + + fprintf (stderr, "debug: "); +} + +/* Note: preserves the previous value of errno. */ +void +nbdkit_vdebug (const char *fs, va_list args) +{ + int err = errno; + + if (!verbose) + return; + flockfile (stderr); + prologue (); + + vfprintf (stderr, fs, args); + + fprintf (stderr, "\n"); + funlockfile (stderr); + + errno = err; +} + +/* Note: preserves the previous value of errno. */ +void +nbdkit_debug (const char *fs, ...) +{ + va_list args; + int err = errno; + + if (!verbose) + return; + + flockfile (stderr); + prologue (); + + va_start (args, fs); + vfprintf (stderr, fs, args); + va_end (args); + + fprintf (stderr, "\n"); + funlockfile (stderr); + + errno = err; +} diff --git a/server/extents.c b/server/extents.c new file mode 100644 index 0000000..105c4a7 --- /dev/null +++ b/server/extents.c @@ -0,0 +1,213 @@ +/* nbdkit + * Copyright (C) 2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <stdbool.h> +#include <string.h> +#include <inttypes.h> +#include <errno.h> +#include <assert.h> + +#include "minmax.h" + +#include "internal.h" + +struct nbdkit_extents { + struct nbdkit_extent *extents; + size_t nr_extents, allocated; + + uint64_t start, end; /* end is one byte beyond the end of the range */ + + /* Where we expect the next extent to be added. If + * nbdkit_add_extent has never been called this is -1. Note this + * field is updated even if we don't actually add the extent because + * it's used to check for API violations. + */ + int64_t next; +}; + +struct nbdkit_extents * +nbdkit_extents_new (uint64_t start, uint64_t end) +{ + struct nbdkit_extents *r; + + if (start > INT64_MAX || end > INT64_MAX) { + nbdkit_error ("nbdkit_extents_new: " + "start (%" PRIu64 ") or end (%" PRIu64 ") > INT64_MAX", + start, end); + errno = ERANGE; + return NULL; + } + + /* 0-length ranges are possible, so start == end is not an error. */ + if (start > end) { + nbdkit_error ("nbdkit_extents_new: " + "start (%" PRIu64 ") >= end (%" PRIu64 ")", + start, end); + errno = ERANGE; + return NULL; + } + + r = malloc (sizeof *r); + if (r == NULL) { + nbdkit_error ("nbdkit_extents_new: malloc: %m"); + return NULL; + } + r->extents = NULL; + r->nr_extents = r->allocated = 0; + r->start = start; + r->end = end; + r->next = -1; + return r; +} + +void +nbdkit_extents_free (struct nbdkit_extents *exts) +{ + if (exts) { + free (exts->extents); + free (exts); + } +} + +size_t +nbdkit_extents_count (const struct nbdkit_extents *exts) +{ + return exts->nr_extents; +} + +struct nbdkit_extent +nbdkit_get_extent (const struct nbdkit_extents *exts, size_t i) +{ + assert (i < exts->nr_extents); + return exts->extents[i]; +} + +/* Insert *e in the list at the end. */ +static int +append_extent (struct nbdkit_extents *exts, const struct nbdkit_extent *e) +{ + if (exts->nr_extents >= exts->allocated) { + size_t new_allocated; + struct nbdkit_extent *new_extents; + + new_allocated = exts->allocated; + if (new_allocated == 0) + new_allocated = 1; + new_allocated *= 2; + new_extents = + realloc (exts->extents, new_allocated * sizeof (struct nbdkit_extent)); + if (new_extents == NULL) { + nbdkit_error ("nbdkit_add_extent: realloc: %m"); + return -1; + } + exts->allocated = new_allocated; + exts->extents = new_extents; + } + + exts->extents[exts->nr_extents] = *e; + exts->nr_extents++; + return 0; +} + +int +nbdkit_add_extent (struct nbdkit_extents *exts, + uint64_t offset, uint64_t length, uint32_t type) +{ + uint64_t overlap; + + /* Extents must be added in strictly ascending, contiguous order. */ + if (exts->next >= 0 && exts->next != offset) { + nbdkit_error ("nbdkit_add_extent: " + "extents must be added in ascending order and " + "must be contiguous"); + return -1; + } + exts->next = offset + length; + + /* Ignore zero-length extents. */ + if (length == 0) + return 0; + + /* Ignore extents beyond the end of the range. */ + if (offset >= exts->end) + return 0; + + /* Shorten extents that overlap the end of the range. */ + if (offset + length >= exts->end) { + overlap = offset + length - exts->end; + length -= overlap; + } + + if (exts->nr_extents == 0) { + /* If there are no existing extents, and the new extent is + * entirely before start, ignore it. + */ + if (offset + length <= exts->start) + return 0; + + /* If there are no existing extents, and the new extent is after + * start, then this is a bug in the plugin. + */ + if (offset > exts->start) { + nbdkit_error ("nbdkit_add_extent: " + "first extent must not be > start (%" PRIu64 ")", + exts->start); + return -1; + } + + /* If there are no existing extents, and the new extent overlaps + * start, truncate it so it starts at start. + */ + overlap = exts->start - offset; + length -= overlap; + offset += overlap; + } + + /* If we get here we are going to either add or extend. */ + if (exts->nr_extents > 0 && + exts->extents[exts->nr_extents-1].type == type) { + /* Coalesce with the last extent. */ + exts->extents[exts->nr_extents-1].length += length; + return 0; + } + else { + /* Add a new extent. */ + const struct nbdkit_extent e = + { .offset = offset, .length = length, .type = type }; + return append_extent (exts, &e); + } +} diff --git a/server/filters.c b/server/filters.c new file mode 100644 index 0000000..b73e74f --- /dev/null +++ b/server/filters.c @@ -0,0 +1,831 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <string.h> +#include <inttypes.h> +#include <assert.h> + +#include <dlfcn.h> + +#include "internal.h" + +/* We extend the generic backend struct with extra fields relating + * to this filter. + */ +struct backend_filter { + struct backend backend; + char *name; /* copy of filter.name */ + char *filename; + void *dl; + struct nbdkit_filter filter; +}; + +/* Literally a backend + a connection pointer. This is the + * implementation of ‘void *nxdata’ in the filter API. + */ +struct b_conn { + struct backend *b; + struct connection *conn; +}; + +/* Note this frees the whole chain. */ +static void +filter_free (struct backend *b) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + + f->backend.next->free (f->backend.next); + + /* Acquiring this lock prevents any filter callbacks from running + * simultaneously. + */ + lock_unload (); + + debug ("%s: unload", f->name); + if (f->filter.unload) + f->filter.unload (); + + if (DO_DLCLOSE) + dlclose (f->dl); + free (f->filename); + + unlock_unload (); + + free (f->name); + free (f); +} + +static int +filter_thread_model (struct backend *b) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + int filter_thread_model = f->filter._thread_model; + int thread_model = f->backend.next->thread_model (f->backend.next); + + if (filter_thread_model < thread_model) /* more serialized */ + thread_model = filter_thread_model; + + return thread_model; +} + +/* This is actually passing the request through to the final plugin, + * hence the function name. + */ +static const char * +plugin_name (struct backend *b) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + + return f->backend.next->plugin_name (f->backend.next); +} + +static const char * +filter_name (struct backend *b) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + + return f->name; +} + +static const char * +filter_version (struct backend *b) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + + return f->filter.version; +} + +static void +filter_usage (struct backend *b) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + const char *p; + + printf ("filter: %s", f->name); + if (f->filter.longname) + printf (" (%s)", f->filter.longname); + printf ("\n"); + printf ("(%s)\n", f->filename); + if (f->filter.description) { + printf ("%s", f->filter.description); + if ((p = strrchr (f->filter.description, '\n')) == NULL || p[1]) + printf ("\n"); + } + if (f->filter.config_help) { + printf ("%s", f->filter.config_help); + if ((p = strrchr (f->filter.config_help, '\n')) == NULL || p[1]) + printf ("\n"); + } +} + +static void +filter_dump_fields (struct backend *b) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + + f->backend.next->dump_fields (f->backend.next); +} + +static int +next_config (void *nxdata, const char *key, const char *value) +{ + struct backend *b = nxdata; + b->config (b, key, value); + return 0; +} + +static void +filter_config (struct backend *b, const char *key, const char *value) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + + debug ("%s: config key=%s, value=%s", + f->name, key, value); + + if (f->filter.config) { + if (f->filter.config (next_config, f->backend.next, key, value) == -1) + exit (EXIT_FAILURE); + } + else + f->backend.next->config (f->backend.next, key, value); +} + +static int +next_config_complete (void *nxdata) +{ + struct backend *b = nxdata; + b->config_complete (b); + return 0; +} + +static void +filter_config_complete (struct backend *b) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + + debug ("%s: config_complete", f->name); + + if (f->filter.config_complete) { + if (f->filter.config_complete (next_config_complete, f->backend.next) == -1) + exit (EXIT_FAILURE); + } + else + f->backend.next->config_complete (f->backend.next); +} + +/* magic_config_key only applies to plugins, so this passes the + * request through to the plugin (hence the name). + */ +static const char * +plugin_magic_config_key (struct backend *b) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + + return f->backend.next->magic_config_key (f->backend.next); +} + +static int +next_open (void *nxdata, int readonly) +{ + struct b_conn *b_conn = nxdata; + + return b_conn->b->open (b_conn->b, b_conn->conn, readonly); +} + +static int +filter_open (struct backend *b, struct connection *conn, int readonly) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + struct b_conn nxdata = { .b = f->backend.next, .conn = conn }; + void *handle; + + debug ("%s: open readonly=%d", f->name, readonly); + + if (f->filter.open) { + handle = f->filter.open (next_open, &nxdata, readonly); + if (handle == NULL) + return -1; + connection_set_handle (conn, f->backend.i, handle); + return 0; + } + else + return f->backend.next->open (f->backend.next, conn, readonly); +} + +static void +filter_close (struct backend *b, struct connection *conn) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + void *handle = connection_get_handle (conn, f->backend.i); + + debug ("%s: close", f->name); + + if (f->filter.close) + f->filter.close (handle); + f->backend.next->close (f->backend.next, conn); +} + +/* The next_functions structure contains pointers to backend + * functions. However because these functions are all expecting a + * backend and a connection, we cannot call them directly, but must + * write some next_* functions that unpack the two parameters from a + * single ‘void *nxdata’ struct pointer (‘b_conn’). + */ + +static int64_t +next_get_size (void *nxdata) +{ + struct b_conn *b_conn = nxdata; + return b_conn->b->get_size (b_conn->b, b_conn->conn); +} + +static int +next_can_write (void *nxdata) +{ + struct b_conn *b_conn = nxdata; + return b_conn->b->can_write (b_conn->b, b_conn->conn); +} + +static int +next_can_flush (void *nxdata) +{ + struct b_conn *b_conn = nxdata; + return b_conn->b->can_flush (b_conn->b, b_conn->conn); +} + +static int +next_is_rotational (void *nxdata) +{ + struct b_conn *b_conn = nxdata; + return b_conn->b->is_rotational (b_conn->b, b_conn->conn); +} + +static int +next_can_trim (void *nxdata) +{ + struct b_conn *b_conn = nxdata; + return b_conn->b->can_trim (b_conn->b, b_conn->conn); +} + +static int +next_can_zero (void *nxdata) +{ + struct b_conn *b_conn = nxdata; + return b_conn->b->can_zero (b_conn->b, b_conn->conn); +} + +static int +next_can_extents (void *nxdata) +{ + struct b_conn *b_conn = nxdata; + return b_conn->b->can_extents (b_conn->b, b_conn->conn); +} + +static int +next_can_fua (void *nxdata) +{ + struct b_conn *b_conn = nxdata; + return b_conn->b->can_fua (b_conn->b, b_conn->conn); +} + +static int +next_can_multi_conn (void *nxdata) +{ + struct b_conn *b_conn = nxdata; + return b_conn->b->can_multi_conn (b_conn->b, b_conn->conn); +} + +static int +next_pread (void *nxdata, void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + struct b_conn *b_conn = nxdata; + return b_conn->b->pread (b_conn->b, b_conn->conn, buf, count, offset, flags, + err); +} + +static int +next_pwrite (void *nxdata, const void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + struct b_conn *b_conn = nxdata; + return b_conn->b->pwrite (b_conn->b, b_conn->conn, buf, count, offset, flags, + err); +} + +static int +next_flush (void *nxdata, uint32_t flags, int *err) +{ + struct b_conn *b_conn = nxdata; + return b_conn->b->flush (b_conn->b, b_conn->conn, flags, err); +} + +static int +next_trim (void *nxdata, uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + struct b_conn *b_conn = nxdata; + return b_conn->b->trim (b_conn->b, b_conn->conn, count, offset, flags, err); +} + +static int +next_zero (void *nxdata, uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + struct b_conn *b_conn = nxdata; + return b_conn->b->zero (b_conn->b, b_conn->conn, count, offset, flags, err); +} + +static int +next_extents (void *nxdata, uint32_t count, uint64_t offset, uint32_t flags, + struct nbdkit_extents *extents, int *err) +{ + struct b_conn *b_conn = nxdata; + return b_conn->b->extents (b_conn->b, b_conn->conn, count, offset, flags, + extents, err); +} + +static struct nbdkit_next_ops next_ops = { + .get_size = next_get_size, + .can_write = next_can_write, + .can_flush = next_can_flush, + .is_rotational = next_is_rotational, + .can_trim = next_can_trim, + .can_zero = next_can_zero, + .can_extents = next_can_extents, + .can_fua = next_can_fua, + .can_multi_conn = next_can_multi_conn, + .pread = next_pread, + .pwrite = next_pwrite, + .flush = next_flush, + .trim = next_trim, + .zero = next_zero, + .extents = next_extents, +}; + +static int +filter_prepare (struct backend *b, struct connection *conn) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + void *handle = connection_get_handle (conn, f->backend.i); + struct b_conn nxdata = { .b = f->backend.next, .conn = conn }; + + debug ("%s: prepare", f->name); + + /* Call these in order starting from the filter closest to the + * plugin. + */ + if (f->backend.next->prepare (f->backend.next, conn) == -1) + return -1; + + if (f->filter.prepare && + f->filter.prepare (&next_ops, &nxdata, handle) == -1) + return -1; + + return 0; +} + +static int +filter_finalize (struct backend *b, struct connection *conn) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + void *handle = connection_get_handle (conn, f->backend.i); + struct b_conn nxdata = { .b = f->backend.next, .conn = conn }; + + debug ("%s: finalize", f->name); + + /* Call these in reverse order to .prepare above, starting from the + * filter furthest away from the plugin. + */ + if (f->filter.finalize && + f->filter.finalize (&next_ops, &nxdata, handle) == -1) + return -1; + + return f->backend.next->finalize (f->backend.next, conn); +} + +static int64_t +filter_get_size (struct backend *b, struct connection *conn) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + void *handle = connection_get_handle (conn, f->backend.i); + struct b_conn nxdata = { .b = f->backend.next, .conn = conn }; + + debug ("%s: get_size", f->name); + + if (f->filter.get_size) + return f->filter.get_size (&next_ops, &nxdata, handle); + else + return f->backend.next->get_size (f->backend.next, conn); +} + +static int +filter_can_write (struct backend *b, struct connection *conn) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + void *handle = connection_get_handle (conn, f->backend.i); + struct b_conn nxdata = { .b = f->backend.next, .conn = conn }; + + debug ("%s: can_write", f->name); + + if (f->filter.can_write) + return f->filter.can_write (&next_ops, &nxdata, handle); + else + return f->backend.next->can_write (f->backend.next, conn); +} + +static int +filter_can_flush (struct backend *b, struct connection *conn) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + void *handle = connection_get_handle (conn, f->backend.i); + struct b_conn nxdata = { .b = f->backend.next, .conn = conn }; + + debug ("%s: can_flush", f->name); + + if (f->filter.can_flush) + return f->filter.can_flush (&next_ops, &nxdata, handle); + else + return f->backend.next->can_flush (f->backend.next, conn); +} + +static int +filter_is_rotational (struct backend *b, struct connection *conn) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + void *handle = connection_get_handle (conn, f->backend.i); + struct b_conn nxdata = { .b = f->backend.next, .conn = conn }; + + debug ("%s: is_rotational", f->name); + + if (f->filter.is_rotational) + return f->filter.is_rotational (&next_ops, &nxdata, handle); + else + return f->backend.next->is_rotational (f->backend.next, conn); +} + +static int +filter_can_trim (struct backend *b, struct connection *conn) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + void *handle = connection_get_handle (conn, f->backend.i); + struct b_conn nxdata = { .b = f->backend.next, .conn = conn }; + + debug ("%s: can_trim", f->name); + + if (f->filter.can_trim) + return f->filter.can_trim (&next_ops, &nxdata, handle); + else + return f->backend.next->can_trim (f->backend.next, conn); +} + +static int +filter_can_zero (struct backend *b, struct connection *conn) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + void *handle = connection_get_handle (conn, f->backend.i); + struct b_conn nxdata = { .b = f->backend.next, .conn = conn }; + + debug ("%s: can_zero", f->name); + + if (f->filter.can_zero) + return f->filter.can_zero (&next_ops, &nxdata, handle); + else + return f->backend.next->can_zero (f->backend.next, conn); +} + +static int +filter_can_extents (struct backend *b, struct connection *conn) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + void *handle = connection_get_handle (conn, f->backend.i); + struct b_conn nxdata = { .b = f->backend.next, .conn = conn }; + + debug ("%s: can_extents", f->name); + + if (f->filter.can_extents) + return f->filter.can_extents (&next_ops, &nxdata, handle); + else + return f->backend.next->can_extents (f->backend.next, conn); +} + +static int +filter_can_fua (struct backend *b, struct connection *conn) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + void *handle = connection_get_handle (conn, f->backend.i); + struct b_conn nxdata = { .b = f->backend.next, .conn = conn }; + + debug ("%s: can_fua", f->name); + + if (f->filter.can_fua) + return f->filter.can_fua (&next_ops, &nxdata, handle); + else + return f->backend.next->can_fua (f->backend.next, conn); +} + +static int +filter_can_multi_conn (struct backend *b, struct connection *conn) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + void *handle = connection_get_handle (conn, f->backend.i); + struct b_conn nxdata = { .b = f->backend.next, .conn = conn }; + + debug ("%s: can_multi_conn", f->name); + + if (f->filter.can_multi_conn) + return f->filter.can_multi_conn (&next_ops, &nxdata, handle); + else + return f->backend.next->can_multi_conn (f->backend.next, conn); +} + +static int +filter_pread (struct backend *b, struct connection *conn, + void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + void *handle = connection_get_handle (conn, f->backend.i); + struct b_conn nxdata = { .b = f->backend.next, .conn = conn }; + + assert (flags == 0); + + debug ("%s: pread count=%" PRIu32 " offset=%" PRIu64 " flags=0x%" PRIx32, + f->name, count, offset, flags); + + if (f->filter.pread) + return f->filter.pread (&next_ops, &nxdata, handle, + buf, count, offset, flags, err); + else + return f->backend.next->pread (f->backend.next, conn, + buf, count, offset, flags, err); +} + +static int +filter_pwrite (struct backend *b, struct connection *conn, + const void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + void *handle = connection_get_handle (conn, f->backend.i); + struct b_conn nxdata = { .b = f->backend.next, .conn = conn }; + + assert (!(flags & ~NBDKIT_FLAG_FUA)); + + debug ("%s: pwrite count=%" PRIu32 " offset=%" PRIu64 " flags=0x%" PRIx32, + f->name, count, offset, flags); + + if (f->filter.pwrite) + return f->filter.pwrite (&next_ops, &nxdata, handle, + buf, count, offset, flags, err); + else + return f->backend.next->pwrite (f->backend.next, conn, + buf, count, offset, flags, err); +} + +static int +filter_flush (struct backend *b, struct connection *conn, uint32_t flags, + int *err) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + void *handle = connection_get_handle (conn, f->backend.i); + struct b_conn nxdata = { .b = f->backend.next, .conn = conn }; + + assert (flags == 0); + + debug ("%s: flush flags=0x%" PRIx32, f->name, flags); + + if (f->filter.flush) + return f->filter.flush (&next_ops, &nxdata, handle, flags, err); + else + return f->backend.next->flush (f->backend.next, conn, flags, err); +} + +static int +filter_trim (struct backend *b, struct connection *conn, + uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + void *handle = connection_get_handle (conn, f->backend.i); + struct b_conn nxdata = { .b = f->backend.next, .conn = conn }; + + assert (flags == 0); + + debug ("%s: trim count=%" PRIu32 " offset=%" PRIu64 " flags=0x%" PRIx32, + f->name, count, offset, flags); + + if (f->filter.trim) + return f->filter.trim (&next_ops, &nxdata, handle, count, offset, flags, + err); + else + return f->backend.next->trim (f->backend.next, conn, count, offset, flags, + err); +} + +static int +filter_zero (struct backend *b, struct connection *conn, + uint32_t count, uint64_t offset, uint32_t flags, int *err) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + void *handle = connection_get_handle (conn, f->backend.i); + struct b_conn nxdata = { .b = f->backend.next, .conn = conn }; + + assert (!(flags & ~(NBDKIT_FLAG_MAY_TRIM | NBDKIT_FLAG_FUA))); + + debug ("%s: zero count=%" PRIu32 " offset=%" PRIu64 " flags=0x%" PRIx32, + f->name, count, offset, flags); + + if (f->filter.zero) + return f->filter.zero (&next_ops, &nxdata, handle, + count, offset, flags, err); + else + return f->backend.next->zero (f->backend.next, conn, + count, offset, flags, err); +} + +static int +filter_extents (struct backend *b, struct connection *conn, + uint32_t count, uint64_t offset, uint32_t flags, + struct nbdkit_extents *extents, int *err) +{ + struct backend_filter *f = container_of (b, struct backend_filter, backend); + void *handle = connection_get_handle (conn, f->backend.i); + struct b_conn nxdata = { .b = f->backend.next, .conn = conn }; + + assert (!(flags & ~NBDKIT_FLAG_REQ_ONE)); + + debug ("%s: extents count=%" PRIu32 " offset=%" PRIu64 " flags=0x%" PRIx32, + f->name, count, offset, flags); + + if (f->filter.extents) + return f->filter.extents (&next_ops, &nxdata, handle, + count, offset, flags, + extents, err); + else + return f->backend.next->extents (f->backend.next, conn, + count, offset, flags, + extents, err); +} + +static struct backend filter_functions = { + .free = filter_free, + .thread_model = filter_thread_model, + .name = filter_name, + .plugin_name = plugin_name, + .usage = filter_usage, + .version = filter_version, + .dump_fields = filter_dump_fields, + .config = filter_config, + .config_complete = filter_config_complete, + .magic_config_key = plugin_magic_config_key, + .open = filter_open, + .prepare = filter_prepare, + .finalize = filter_finalize, + .close = filter_close, + .get_size = filter_get_size, + .can_write = filter_can_write, + .can_flush = filter_can_flush, + .is_rotational = filter_is_rotational, + .can_trim = filter_can_trim, + .can_zero = filter_can_zero, + .can_extents = filter_can_extents, + .can_fua = filter_can_fua, + .can_multi_conn = filter_can_multi_conn, + .pread = filter_pread, + .pwrite = filter_pwrite, + .flush = filter_flush, + .trim = filter_trim, + .zero = filter_zero, + .extents = filter_extents, +}; + +/* Register and load a filter. */ +struct backend * +filter_register (struct backend *next, size_t index, const char *filename, + void *dl, struct nbdkit_filter *(*filter_init) (void)) +{ + struct backend_filter *f; + const struct nbdkit_filter *filter; + size_t i, len; + + f = calloc (1, sizeof *f); + if (f == NULL) { + out_of_memory: + perror ("strdup"); + exit (EXIT_FAILURE); + } + + f->backend = filter_functions; + f->backend.next = next; + f->backend.i = index; + f->filename = strdup (filename); + if (f->filename == NULL) goto out_of_memory; + f->dl = dl; + + debug ("registering filter %s", f->filename); + + /* Call the initialization function which returns the address of the + * filter's own 'struct nbdkit_filter'. + */ + filter = filter_init (); + if (!filter) { + fprintf (stderr, "%s: %s: filter registration function failed\n", + program_name, f->filename); + exit (EXIT_FAILURE); + } + + /* We do not provide API or ABI guarantees for filters, other than + * the ABI position of _api_version that will let us diagnose + * mismatch when the API changes. + */ + if (filter->_api_version != NBDKIT_FILTER_API_VERSION) { + fprintf (stderr, + "%s: %s: filter is incompatible with this version of nbdkit " + "(_api_version = %d)\n", + program_name, f->filename, filter->_api_version); + exit (EXIT_FAILURE); + } + + f->filter = *filter; + + /* Only filter.name is required. */ + if (f->filter.name == NULL) { + fprintf (stderr, "%s: %s: filter must have a .name field\n", + program_name, f->filename); + exit (EXIT_FAILURE); + } + + len = strlen (f->filter.name); + if (len == 0) { + fprintf (stderr, "%s: %s: filter.name field must not be empty\n", + program_name, f->filename); + exit (EXIT_FAILURE); + } + for (i = 0; i < len; ++i) { + if (!((f->filter.name[i] >= '0' && f->filter.name[i] <= '9') || + (f->filter.name[i] >= 'a' && f->filter.name[i] <= 'z') || + (f->filter.name[i] >= 'A' && f->filter.name[i] <= 'Z'))) { + fprintf (stderr, + "%s: %s: filter.name ('%s') field " + "must contain only ASCII alphanumeric characters\n", + program_name, f->filename, f->filter.name); + exit (EXIT_FAILURE); + } + } + + /* Copy the module's name into local storage, so that filter.name + * survives past unload. + */ + f->name = strdup (f->filter.name); + if (f->name == NULL) { + perror ("strdup"); + exit (EXIT_FAILURE); + } + + debug ("registered filter %s (name %s)", f->filename, f->name); + + /* Set debug flags before calling load. */ + set_debug_flags (dl, f->name); + + /* Call the on-load callback if it exists. */ + debug ("%s: load", f->name); + if (f->filter.load) + f->filter.load (); + + return (struct backend *) f; +} diff --git a/server/internal.h b/server/internal.h new file mode 100644 index 0000000..817f022 --- /dev/null +++ b/server/internal.h @@ -0,0 +1,363 @@ +/* nbdkit + * Copyright (C) 2013-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_INTERNAL_H +#define NBDKIT_INTERNAL_H + +#include <stdbool.h> +#include <stddef.h> +#include <stdarg.h> +#include <sys/socket.h> +#include <pthread.h> + +#define NBDKIT_API_VERSION 2 +#include "nbdkit-plugin.h" +#include "nbdkit-filter.h" + +#ifdef __APPLE__ +#define UNIX_PATH_MAX 104 +#else +#define UNIX_PATH_MAX 108 +#endif + +#ifndef O_CLOEXEC +#define O_CLOEXEC 0 +#endif + +#ifndef SOCK_CLOEXEC +#define SOCK_CLOEXEC 0 +#endif + +#if HAVE_VALGRIND +# include <valgrind.h> +/* http://valgrind.org/docs/manual/faq.html#faq.unhelpful */ +# define DO_DLCLOSE !RUNNING_ON_VALGRIND +#elif defined(__SANITIZE_ADDRESS__) +# define DO_DLCLOSE 0 +#else +# define DO_DLCLOSE 1 +#endif + +#define container_of(ptr, type, member) ({ \ + const typeof (((type *) 0)->member) *__mptr = (ptr); \ + (type *) ((char *) __mptr - offsetof(type, member)); \ + }) + +/* main.c */ +struct debug_flag { + struct debug_flag *next; + char *name; /* plugin or filter name */ + char *flag; /* flag name */ + int value; /* value of flag */ + bool used; /* if flag was successfully set */ +}; + +enum log_to { + LOG_TO_DEFAULT, /* --log not specified: log to stderr, unless + we forked into the background in which + case log to syslog */ + LOG_TO_STDERR, /* --log=stderr forced on the command line */ + LOG_TO_SYSLOG, /* --log=syslog forced on the command line */ +}; + +extern struct debug_flag *debug_flags; +extern const char *exportname; +extern bool foreground; +extern const char *ipaddr; +extern enum log_to log_to; +extern bool newstyle; +extern const char *port; +extern bool readonly; +extern const char *run; +extern const char *selinux_label; +extern int threads; +extern int tls; +extern const char *tls_certificates_dir; +extern const char *tls_psk; +extern bool tls_verify_peer; +extern char *unixsocket; +extern const char *user, *group; +extern bool verbose; + +extern struct backend *backend; +#define for_each_backend(b) for (b = backend; b != NULL; b = b->next) + +/* quit.c */ +extern volatile int quit; +extern int quit_fd; +extern void set_up_quit_pipe (void); +extern void handle_quit (int sig); +extern void set_quit (void); + +/* signals.c */ +extern void set_up_signals (void); + +/* background.c */ +extern bool forked_into_background; +extern void fork_into_background (void); + +/* captive.c */ +extern void run_command (void); + +/* socket-activation.c */ +#define FIRST_SOCKET_ACTIVATION_FD 3 /* defined by systemd ABI */ +extern unsigned int get_socket_activation (void); + +/* usergroup.c */ +extern void change_user (void); + +/* cleanup.c */ +extern void cleanup_free (void *ptr); +#define CLEANUP_FREE __attribute__((cleanup (cleanup_free))) +extern void cleanup_extents_free (void *ptr); +#define CLEANUP_EXTENTS_FREE __attribute__((cleanup (cleanup_extents_free))) +extern void cleanup_unlock (pthread_mutex_t **ptr); +#define CLEANUP_UNLOCK __attribute__((cleanup (cleanup_unlock))) +#define ACQUIRE_LOCK_FOR_CURRENT_SCOPE(mutex) \ + CLEANUP_UNLOCK pthread_mutex_t *_lock = mutex; \ + pthread_mutex_lock (_lock) + +/* connections.c */ +struct connection; + +typedef int (*connection_recv_function) (struct connection *, + void *buf, size_t len) + __attribute__((__nonnull__ (1, 2))); +typedef int (*connection_send_function) (struct connection *, + const void *buf, size_t len) + __attribute__((__nonnull__ (1, 2))); +typedef void (*connection_close_function) (struct connection *) + __attribute__((__nonnull__ (1))); + +struct connection { + pthread_mutex_t request_lock; + pthread_mutex_t read_lock; + pthread_mutex_t write_lock; + pthread_mutex_t status_lock; + int status; /* 1 for more I/O with client, 0 for shutdown, -1 on error */ + void *crypto_session; + int nworkers; + + void **handles; + size_t nr_handles; + + uint32_t cflags; + uint64_t exportsize; + uint16_t eflags; + bool readonly; + bool can_flush; + bool is_rotational; + bool can_trim; + bool can_zero; + bool can_fua; + bool can_multi_conn; + bool can_extents; + bool using_tls; + bool structured_replies; + bool meta_context_base_allocation; + + int sockin, sockout; + connection_recv_function recv; + connection_send_function send; + connection_close_function close; +}; + +extern int handle_single_connection (int sockin, int sockout); +extern int connection_set_handle (struct connection *conn, + size_t i, void *handle) + __attribute__((__nonnull__ (1 /* not 3 */))); +extern void *connection_get_handle (struct connection *conn, size_t i) + __attribute__((__nonnull__ (1))); +extern int connection_get_status (struct connection *conn) + __attribute__((__nonnull__ (1))); +extern int connection_set_status (struct connection *conn, int value) + __attribute__((__nonnull__ (1))); + +/* protocol-handshake.c */ +extern int protocol_handshake (struct connection *conn) + __attribute__((__nonnull__ (1))); +extern int protocol_compute_eflags (struct connection *conn, uint16_t *flags) + __attribute__((__nonnull__ (1, 2))); + +/* protocol-handshake-oldstyle.c */ +extern int protocol_handshake_oldstyle (struct connection *conn) + __attribute__((__nonnull__ (1))); + +/* protocol-handshake-newstyle.c */ +extern int protocol_handshake_newstyle (struct connection *conn) + __attribute__((__nonnull__ (1))); + +/* protocol.c */ +extern int protocol_recv_request_send_reply (struct connection *conn) + __attribute__((__nonnull__ (1))); + +/* The context ID of base:allocation. As far as I can tell it doesn't + * matter what this is as long as nbdkit always returns the same + * number. + */ +#define base_allocation_id 1 + +/* crypto.c */ +#define root_tls_certificates_dir sysconfdir "/pki/" PACKAGE_NAME +extern void crypto_init (bool tls_set_on_cli); +extern void crypto_free (void); +extern int crypto_negotiate_tls (struct connection *conn, + int sockin, int sockout) + __attribute__((__nonnull__ (1))); + +/* debug.c */ +#define debug nbdkit_debug + +/* log-*.c */ +#if !HAVE_VFPRINTF_PERCENT_M +#include <stdio.h> +#define vfprintf nbdkit_vfprintf +extern int nbdkit_vfprintf (FILE *f, const char *fmt, va_list args) + __attribute__((__format__ (printf, 2, 0))); +#endif +extern void log_stderr_verror (const char *fs, va_list args) + __attribute__((__format__ (printf, 1, 0))); +extern void log_syslog_verror (const char *fs, va_list args) + __attribute__((__format__ (printf, 1, 0))); + +struct backend { + /* Next filter or plugin in the chain. This is always NULL for + * plugins and never NULL for filters. + */ + struct backend *next; + + /* A unique index used to fetch the handle from the connections + * object. The plugin (last in the chain) has index 0, and the + * filters have index 1, 2, ... depending how "far" they are from + * the plugin. + */ + size_t i; + + void (*free) (struct backend *); + int (*thread_model) (struct backend *); + const char *(*name) (struct backend *); + const char *(*plugin_name) (struct backend *); + void (*usage) (struct backend *); + const char *(*version) (struct backend *); + void (*dump_fields) (struct backend *); + void (*config) (struct backend *, const char *key, const char *value); + void (*config_complete) (struct backend *); + const char *(*magic_config_key) (struct backend *); + int (*open) (struct backend *, struct connection *conn, int readonly); + int (*prepare) (struct backend *, struct connection *conn); + int (*finalize) (struct backend *, struct connection *conn); + void (*close) (struct backend *, struct connection *conn); + + int64_t (*get_size) (struct backend *, struct connection *conn); + int (*can_write) (struct backend *, struct connection *conn); + int (*can_flush) (struct backend *, struct connection *conn); + int (*is_rotational) (struct backend *, struct connection *conn); + int (*can_trim) (struct backend *, struct connection *conn); + int (*can_zero) (struct backend *, struct connection *conn); + int (*can_extents) (struct backend *, struct connection *conn); + int (*can_fua) (struct backend *, struct connection *conn); + int (*can_multi_conn) (struct backend *, struct connection *conn); + + int (*pread) (struct backend *, struct connection *conn, void *buf, + uint32_t count, uint64_t offset, uint32_t flags, int *err); + int (*pwrite) (struct backend *, struct connection *conn, const void *buf, + uint32_t count, uint64_t offset, uint32_t flags, int *err); + int (*flush) (struct backend *, struct connection *conn, uint32_t flags, + int *err); + int (*trim) (struct backend *, struct connection *conn, uint32_t count, + uint64_t offset, uint32_t flags, int *err); + int (*zero) (struct backend *, struct connection *conn, uint32_t count, + uint64_t offset, uint32_t flags, int *err); + int (*extents) (struct backend *, struct connection *conn, uint32_t count, + uint64_t offset, uint32_t flags, + struct nbdkit_extents *extents, int *err); +}; + +/* plugins.c */ +extern struct backend *plugin_register (size_t index, const char *filename, + void *dl, struct nbdkit_plugin *(*plugin_init) (void)) + __attribute__((__nonnull__ (2, 3, 4))); +extern void set_debug_flags (void *dl, const char *name) + __attribute__((__nonnull__ (1, 2))); + +/* filters.c */ +extern struct backend *filter_register (struct backend *next, size_t index, + const char *filename, void *dl, + struct nbdkit_filter *(*filter_init) (void)) + __attribute__((__nonnull__ (1, 3, 4, 5))); + +/* locks.c */ +extern void lock_init_thread_model (void); +extern void lock_connection (void); +extern void unlock_connection (void); +extern void lock_request (struct connection *conn) + __attribute__((__nonnull__ (1))); +extern void unlock_request (struct connection *conn) + __attribute__((__nonnull__ (1))); +extern void lock_unload (void); +extern void unlock_unload (void); + +/* sockets.c */ +extern int *bind_unix_socket (size_t *) + __attribute__((__nonnull__ (1))); +extern int *bind_tcpip_socket (size_t *) + __attribute__((__nonnull__ (1))); +extern void accept_incoming_connections (int *socks, size_t nr_socks) + __attribute__((__nonnull__ (1))); +extern void free_listening_sockets (int *socks, size_t nr_socks) + __attribute__((__nonnull__ (1))); + +/* threadlocal.c */ +extern void threadlocal_init (void); +extern void threadlocal_new_server_thread (void); +extern void threadlocal_set_name (const char *name) + __attribute__((__nonnull__ (1))); +extern const char *threadlocal_get_name (void); +extern void threadlocal_set_instance_num (size_t instance_num); +extern size_t threadlocal_get_instance_num (void); +extern void threadlocal_set_sockaddr (const struct sockaddr *addr, + socklen_t addrlen) + __attribute__((__nonnull__ (1))); +/*extern void threadlocal_get_sockaddr ();*/ +extern void threadlocal_set_error (int err); +extern int threadlocal_get_error (void); +extern void *threadlocal_buffer (size_t size); + +/* Declare program_name. */ +#if HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME == 1 +#include <errno.h> +#define program_name program_invocation_short_name +#else +#define program_name "nbdkit" +#endif + +#endif /* NBDKIT_INTERNAL_H */ diff --git a/server/locks.c b/server/locks.c new file mode 100644 index 0000000..f4d6497 --- /dev/null +++ b/server/locks.c @@ -0,0 +1,103 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> + +#include "internal.h" + +/* Note that the plugin's thread model cannot change after being + * loaded, so caching it here is safe. + */ +static int thread_model; + +static pthread_mutex_t connection_lock = PTHREAD_MUTEX_INITIALIZER; +static pthread_mutex_t all_requests_lock = PTHREAD_MUTEX_INITIALIZER; +static pthread_rwlock_t unload_prevention_lock = PTHREAD_RWLOCK_INITIALIZER; + +void +lock_init_thread_model (void) +{ + thread_model = backend->thread_model (backend); +} + +void +lock_connection (void) +{ + if (thread_model <= NBDKIT_THREAD_MODEL_SERIALIZE_CONNECTIONS) + pthread_mutex_lock (&connection_lock); +} + +void +unlock_connection (void) +{ + if (thread_model <= NBDKIT_THREAD_MODEL_SERIALIZE_CONNECTIONS) + pthread_mutex_unlock (&connection_lock); +} + +void +lock_request (struct connection *conn) +{ + if (thread_model <= NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS) + pthread_mutex_lock (&all_requests_lock); + + if (thread_model <= NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS) + pthread_mutex_lock (&conn->request_lock); + + pthread_rwlock_rdlock (&unload_prevention_lock); +} + +void +unlock_request (struct connection *conn) +{ + pthread_rwlock_unlock (&unload_prevention_lock); + + if (thread_model <= NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS) + pthread_mutex_unlock (&conn->request_lock); + + if (thread_model <= NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS) + pthread_mutex_unlock (&all_requests_lock); +} + +void +lock_unload (void) +{ + pthread_rwlock_wrlock (&unload_prevention_lock); +} + +void +unlock_unload (void) +{ + pthread_rwlock_unlock (&unload_prevention_lock); +} diff --git a/server/log-stderr.c b/server/log-stderr.c new file mode 100644 index 0000000..4b919c4 --- /dev/null +++ b/server/log-stderr.c @@ -0,0 +1,77 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdarg.h> +#include <string.h> +#include <unistd.h> +#include <errno.h> + +#include "internal.h" + +/* Note: preserves the previous value of errno. */ +void +log_stderr_verror (const char *fs, va_list args) +{ + int err = errno; /* must be first line of function */ + + const char *name = threadlocal_get_name (); + size_t instance_num = threadlocal_get_instance_num (); + int tty; + + flockfile (stderr); + tty = isatty (fileno (stderr)); + if (tty) fputs ("\033[1;31m", stderr); + + fprintf (stderr, "%s: ", program_name); + + if (name) { + fprintf (stderr, "%s", name); + if (instance_num > 0) + fprintf (stderr, "[%zu]", instance_num); + fprintf (stderr, ": "); + } + + fprintf (stderr, "error: "); + errno = err; /* must restore in case fs contains %m */ + vfprintf (stderr, fs, args); + fprintf (stderr, "\n"); + + if (tty) fputs ("\033[0m", stderr); + + funlockfile (stderr); + + errno = err; /* must be last line of function */ +} diff --git a/server/log-syslog.c b/server/log-syslog.c new file mode 100644 index 0000000..5ca201f --- /dev/null +++ b/server/log-syslog.c @@ -0,0 +1,81 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdarg.h> +#include <string.h> +#include <errno.h> +#include <syslog.h> + +#include "internal.h" + +/* Tempted to use LOG_FTP instead of LOG_DAEMON! */ +static const int PRIORITY = LOG_DAEMON|LOG_ERR; + +/* Note: preserves the previous value of errno. */ +void +log_syslog_verror (const char *fs, va_list args) +{ + int err = errno; + const char *name = threadlocal_get_name (); + size_t instance_num = threadlocal_get_instance_num (); + CLEANUP_FREE char *msg = NULL; + size_t len = 0; + FILE *fp = NULL; + + fp = open_memstream (&msg, &len); + if (fp == NULL) { + /* Fallback to logging using fs, args directly. */ + errno = err; /* Must restore in case fs contains %m */ + vsyslog (PRIORITY, fs, args); + goto out; + } + + if (name) { + fprintf (fp, "%s", name); + if (instance_num > 0) + fprintf (fp, "[%zu]", instance_num); + fprintf (fp, ": "); + } + + errno = err; /* Must restore in case fs contains %m */ + vfprintf (fp, fs, args); + fclose (fp); + + syslog (PRIORITY, "%s", msg); + + out: + errno = err; +} diff --git a/server/log.c b/server/log.c new file mode 100644 index 0000000..d909b8f --- /dev/null +++ b/server/log.c @@ -0,0 +1,100 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdarg.h> +#include <string.h> +#include <errno.h> + +#include "internal.h" + +/* Call the right nbdkit_verror function depending on log_sink. + * Note: preserves the previous value of errno. + */ +void +nbdkit_verror (const char *fs, va_list args) +{ + switch (log_to) { + case LOG_TO_DEFAULT: + if (forked_into_background) + log_syslog_verror (fs, args); + else + log_stderr_verror (fs, args); + break; + case LOG_TO_SYSLOG: + log_syslog_verror (fs, args); + break; + case LOG_TO_STDERR: + log_stderr_verror (fs, args); + break; + } +} + +/* Wrapper around nbdkit_verror. + * Note: preserves the previous value of errno. + */ +void +nbdkit_error (const char *fs, ...) +{ + va_list args; + + va_start (args, fs); + nbdkit_verror (fs, args); + va_end (args); +} + +#if !HAVE_VFPRINTF_PERCENT_M +/* Work around lack of %m in BSD */ +#undef vfprintf + +/* Call the real vfprintf after first changing %m into strerror(errno). */ +int +nbdkit_vfprintf(FILE *f, const char *fmt, va_list args) +{ + char *repl = NULL; + char *p = strstr (fmt, "%m"); /* assume strstr doesn't touch errno */ + int ret; + + /* We only handle the first %m; if a user passes more than one, they + * deserve broken output. + */ + if (p && asprintf (&repl, "%.*s%s%s", (int) (p - fmt), fmt, strerror (errno), + p + 2) > 0) + fmt = repl; + ret = vfprintf (f, fmt, args); + free (repl); + return ret; +} +#endif diff --git a/server/main.c b/server/main.c new file mode 100644 index 0000000..8ad3f7a --- /dev/null +++ b/server/main.c @@ -0,0 +1,927 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdbool.h> +#include <string.h> +#include <fcntl.h> +#include <unistd.h> +#include <getopt.h> +#include <limits.h> +#include <errno.h> +#include <assert.h> +#include <syslog.h> +#include <sys/types.h> +#include <sys/stat.h> + +#include <pthread.h> + +#include <dlfcn.h> + +#include "internal.h" +#include "options.h" +#include "exit-with-parent.h" + +static char *make_random_fifo (void); +static struct backend *open_plugin_so (size_t i, const char *filename, int short_name); +static struct backend *open_filter_so (struct backend *next, size_t i, const char *filename, int short_name); +static void start_serving (void); +static void write_pidfile (void); +static bool is_config_key (const char *key, size_t len); + +struct debug_flag *debug_flags; /* -D */ +bool exit_with_parent; /* --exit-with-parent */ +const char *exportname; /* -e */ +bool foreground; /* -f */ +const char *ipaddr; /* -i */ +enum log_to log_to = LOG_TO_DEFAULT; /* --log */ +bool newstyle = true; /* false = -o, true = -n */ +char *pidfile; /* -P */ +const char *port; /* -p */ +bool readonly; /* -r */ +const char *run; /* --run */ +bool listen_stdin; /* -s */ +const char *selinux_label; /* --selinux-label */ +int threads; /* -t */ +int tls; /* --tls : 0=off 1=on 2=require */ +const char *tls_certificates_dir; /* --tls-certificates */ +const char *tls_psk; /* --tls-psk */ +bool tls_verify_peer; /* --tls-verify-peer */ +char *unixsocket; /* -U */ +const char *user, *group; /* -u & -g */ +bool verbose; /* -v */ +unsigned int socket_activation /* $LISTEN_FDS and $LISTEN_PID set */; + +/* The currently loaded plugin. */ +struct backend *backend; + +static char *random_fifo_dir = NULL; +static char *random_fifo = NULL; + +static void +usage (void) +{ + /* --{short,long}-options remain undocumented */ + printf ( +#include "synopsis.c" + ); + printf ("\n" + "Please read the nbdkit(1) manual page for full usage.\n"); +} + +static void +display_version (void) +{ + printf ("%s %s\n", PACKAGE_NAME, PACKAGE_VERSION); +} + +static void +dump_config (void) +{ + printf ("%s=%s\n", "bindir", bindir); + printf ("%s=%s\n", "filterdir", filterdir); + printf ("%s=%s\n", "libdir", libdir); + printf ("%s=%s\n", "mandir", mandir); + printf ("%s=%s\n", "name", PACKAGE_NAME); + printf ("%s=%s\n", "plugindir", plugindir); + printf ("%s=%s\n", "root_tls_certificates_dir", root_tls_certificates_dir); + printf ("%s=%s\n", "sbindir", sbindir); +#ifdef HAVE_LIBSELINUX + printf ("selinux=yes\n"); +#else + printf ("selinux=no\n"); +#endif + printf ("%s=%s\n", "sysconfdir", sysconfdir); +#ifdef HAVE_GNUTLS + printf ("tls=yes\n"); +#else + printf ("tls=no\n"); +#endif + printf ("%s=%s\n", "version", PACKAGE_VERSION); +} + +int +main (int argc, char *argv[]) +{ + int c; + bool help = false, version = false, dump_plugin = false; + int tls_set_on_cli = false; + int short_name; + const char *filename; + char *p; + static struct filter_filename { + struct filter_filename *next; + const char *filename; + } *filter_filenames = NULL; + size_t i; + const char *magic_config_key; + + threadlocal_init (); + + /* The default setting for TLS depends on whether we were + * compiled with GnuTLS. + */ +#ifdef HAVE_GNUTLS + tls = 1; +#else + tls = 0; +#endif + + /* Returns 0 if no socket activation, or the number of FDs. */ + socket_activation = get_socket_activation (); + + for (;;) { + c = getopt_long (argc, argv, short_options, long_options, NULL); + if (c == -1) + break; + + switch (c) { + case 'D': + { + const char *p, *q; + struct debug_flag *flag; + + /* Debug Flag must be "NAME.FLAG=N". + * ^ ^ ^ + * optarg p q (after +1 adjustment below) + */ + p = strchr (optarg, '.'); + q = strchr (optarg, '='); + if (p == NULL || q == NULL) { + bad_debug_flag: + fprintf (stderr, + "%s: -D (Debug Flag) must have the format NAME.FLAG=N\n", + program_name); + exit (EXIT_FAILURE); + } + p++; /* +1 adjustment */ + q++; + + if (p - optarg <= 1) goto bad_debug_flag; /* NAME too short */ + if (p > q) goto bad_debug_flag; + if (q - p <= 1) goto bad_debug_flag; /* FLAG too short */ + if (*q == '\0') goto bad_debug_flag; /* N too short */ + + flag = malloc (sizeof *flag); + if (flag == NULL) { + debug_flag_perror: + perror ("malloc"); + exit (EXIT_FAILURE); + } + flag->name = strndup (optarg, p-optarg-1); + if (!flag->name) goto debug_flag_perror; + flag->flag = strndup (p, q-p-1); + if (!flag->flag) goto debug_flag_perror; + if (sscanf (q, "%d", &flag->value) != 1) goto bad_debug_flag; + flag->used = false; + + /* Add flag to the linked list. */ + flag->next = debug_flags; + debug_flags = flag; + } + break; + + case DUMP_CONFIG_OPTION: + dump_config (); + exit (EXIT_SUCCESS); + + case DUMP_PLUGIN_OPTION: + dump_plugin = true; + break; + + case EXIT_WITH_PARENT_OPTION: +#ifdef HAVE_EXIT_WITH_PARENT + exit_with_parent = true; + foreground = true; + break; +#else + fprintf (stderr, + "%s: --exit-with-parent is not implemented " + "for this operating system\n", + program_name); + exit (EXIT_FAILURE); +#endif + + case FILTER_OPTION: + { + struct filter_filename *t; + + t = malloc (sizeof *t); + if (t == NULL) { + perror ("malloc"); + exit (EXIT_FAILURE); + } + t->next = filter_filenames; + t->filename = optarg; + filter_filenames = t; + } + break; + + case LOG_OPTION: + if (strcmp (optarg, "stderr") == 0) + log_to = LOG_TO_STDERR; + else if (strcmp (optarg, "syslog") == 0) + log_to = LOG_TO_SYSLOG; + else { + fprintf (stderr, "%s: --log must be \"stderr\" or \"syslog\"\n", + program_name); + exit (EXIT_FAILURE); + } + break; + + case LONG_OPTIONS_OPTION: + for (i = 0; long_options[i].name != NULL; ++i) { + if (strcmp (long_options[i].name, "long-options") != 0 && + strcmp (long_options[i].name, "short-options") != 0) + printf ("--%s\n", long_options[i].name); + } + exit (EXIT_SUCCESS); + + case RUN_OPTION: + if (socket_activation) { + fprintf (stderr, "%s: cannot use socket activation with --run flag\n", + program_name); + exit (EXIT_FAILURE); + } + run = optarg; + foreground = true; + break; + + case SELINUX_LABEL_OPTION: + selinux_label = optarg; + break; + + case SHORT_OPTIONS_OPTION: + for (i = 0; short_options[i]; ++i) { + if (short_options[i] != ':') + printf ("-%c\n", short_options[i]); + } + exit (EXIT_SUCCESS); + + case TLS_OPTION: + tls_set_on_cli = true; + if (strcasecmp (optarg, "require") == 0 || + strcasecmp (optarg, "required") == 0 || + strcasecmp (optarg, "force") == 0) + tls = 2; + else { + tls = nbdkit_parse_bool (optarg); + if (tls == -1) + exit (EXIT_FAILURE); + } + break; + + case TLS_CERTIFICATES_OPTION: + tls_certificates_dir = optarg; + break; + + case TLS_PSK_OPTION: + tls_psk = optarg; + break; + + case TLS_VERIFY_PEER_OPTION: + tls_verify_peer = true; + break; + + case 'e': + exportname = optarg; + newstyle = true; + break; + + case 'f': + foreground = true; + break; + + case 'g': + group = optarg; + break; + + case 'i': + if (socket_activation) { + fprintf (stderr, "%s: cannot use socket activation with -i flag\n", + program_name); + exit (EXIT_FAILURE); + } + ipaddr = optarg; + break; + + case 'n': + newstyle = true; + break; + + case 'o': + newstyle = false; + break; + + case 'P': + pidfile = nbdkit_absolute_path (optarg); + if (pidfile == NULL) + exit (EXIT_FAILURE); + break; + + case 'p': + if (socket_activation) { + fprintf (stderr, "%s: cannot use socket activation with -p flag\n", + program_name); + exit (EXIT_FAILURE); + } + port = optarg; + break; + + case 'r': + readonly = true; + break; + + case 's': + if (socket_activation) { + fprintf (stderr, "%s: cannot use socket activation with -s flag\n", + program_name); + exit (EXIT_FAILURE); + } + listen_stdin = true; + break; + + case 't': + { + char *end; + + errno = 0; + threads = strtoul (optarg, &end, 0); + if (errno || *end) { + fprintf (stderr, "%s: cannot parse '%s' into threads\n", + program_name, optarg); + exit (EXIT_FAILURE); + } + /* XXX Worth a maximimum limit on threads? */ + } + break; + + case 'U': + if (socket_activation) { + fprintf (stderr, "%s: cannot use socket activation with -U flag\n", + program_name); + exit (EXIT_FAILURE); + } + if (strcmp (optarg, "-") == 0) + unixsocket = make_random_fifo (); + else + unixsocket = nbdkit_absolute_path (optarg); + if (unixsocket == NULL) + exit (EXIT_FAILURE); + break; + + case 'u': + user = optarg; + break; + + case 'v': + verbose = true; + break; + + case 'V': + version = true; + break; + + case HELP_OPTION: + help = true; + break; + + default: + usage (); + exit (EXIT_FAILURE); + } + } + + /* No extra parameters. */ + if (optind >= argc) { + if (help) { + usage (); + exit (EXIT_SUCCESS); + } + if (version) { + display_version (); + exit (EXIT_SUCCESS); + } + if (dump_plugin) { + /* Incorrect use of --dump-plugin. */ + fprintf (stderr, + "%s: use 'nbdkit plugin --dump-plugin' or\n" + "'nbdkit /path/to/plugin.so --dump-plugin'\n", + program_name); + exit (EXIT_FAILURE); + } + + /* Otherwise this is an error. */ + fprintf (stderr, + "%s: no plugins given on the command line.\n" + "Use '%s --help' or " + "read the nbdkit(1) manual page for documentation.\n", + program_name, program_name); + exit (EXIT_FAILURE); + } + + /* Oldstyle protocol + exportname not allowed. */ + if (!newstyle && exportname != NULL) { + fprintf (stderr, + "%s: cannot use oldstyle protocol (-o) and exportname (-e)\n", + program_name); + exit (EXIT_FAILURE); + } + + /* If exportname was not set on the command line, use "". */ + if (exportname == NULL) + exportname = ""; + + /* --tls=require and oldstyle won't work. */ + if (tls == 2 && !newstyle) { + fprintf (stderr, + "%s: cannot use oldstyle protocol (-o) and require TLS\n", + program_name); + exit (EXIT_FAILURE); + } + + /* Set the umask to a known value. This makes the behaviour of + * plugins when creating files more predictable, and also removes an + * implicit dependency on umask when calling mkstemp(3). + */ + umask (0022); + + /* If we will or might use syslog. */ + if (log_to == LOG_TO_SYSLOG || log_to == LOG_TO_DEFAULT) + openlog (program_name, LOG_PID, 0); + + /* Initialize TLS. */ + crypto_init (tls_set_on_cli); + assert (tls != -1); + + /* Implement --exit-with-parent early in case plugin initialization + * takes a long time and the parent exits during that time. + */ +#ifdef HAVE_EXIT_WITH_PARENT + if (exit_with_parent) { + if (set_exit_with_parent () == -1) { + perror ("nbdkit: --exit-with-parent"); + exit (EXIT_FAILURE); + } + } +#endif + + /* The remaining command line arguments are the plugin name and + * parameters. If --help, --version or --dump-plugin were specified + * then we open the plugin so that we can display the per-plugin + * help/version/plugin information. + */ + filename = argv[optind++]; + short_name = is_short_name (filename); + + /* Is there an executable script located in the plugindir? + * If so we simply execute it with the current command line. + */ + if (short_name) { + size_t i; + struct stat statbuf; + CLEANUP_FREE char *script; + + if (asprintf (&script, + "%s/nbdkit-%s-plugin", plugindir, filename) == -1) { + perror ("asprintf"); + exit (EXIT_FAILURE); + } + + if (stat (script, &statbuf) == 0 && + (statbuf.st_mode & S_IXUSR) != 0) { + /* We're going to execute the plugin directly. + * Replace argv[0] with argv[optind-1] and move further arguments + * down the list. + */ + argv[0] = argv[optind-1]; + for (i = optind; i <= argc; i++) + argv[i-1] = argv[i]; + execv (script, argv); + perror (script); + exit (EXIT_FAILURE); + } + } + + /* Open the plugin (first) and then wrap the plugin with the + * filters. The filters are wrapped in reverse order that they + * appear on the command line so that in the end ‘backend’ points to + * the first filter on the command line. + */ + backend = open_plugin_so (0, filename, short_name); + i = 1; + while (filter_filenames) { + struct filter_filename *t = filter_filenames; + const char *filename = t->filename; + int short_name = is_short_name (filename); + + backend = open_filter_so (backend, i++, filename, short_name); + + filter_filenames = t->next; + free (t); + } + + /* Check all debug flags were used, and free them. */ + while (debug_flags != NULL) { + struct debug_flag *next = debug_flags->next; + + if (!debug_flags->used) { + fprintf (stderr, "%s: debug flag -D %s.%s was not used\n", + program_name, debug_flags->name, debug_flags->flag); + exit (EXIT_FAILURE); + } + free (debug_flags->name); + free (debug_flags->flag); + free (debug_flags); + debug_flags = next; + } + + /* Select a thread model. */ + lock_init_thread_model (); + + if (help) { + struct backend *b; + + usage (); + for_each_backend (b) { + printf ("\n"); + b->usage (b); + } + backend->free (backend); + exit (EXIT_SUCCESS); + } + + if (version) { + const char *v; + struct backend *b; + + display_version (); + for_each_backend (b) { + printf ("%s", b->name (b)); + if ((v = b->version (b)) != NULL) + printf (" %s", v); + printf ("\n"); + } + backend->free (backend); + exit (EXIT_SUCCESS); + } + + /* Call config and config_complete to parse the parameters. + * + * If the plugin provides magic_config_key then any "bare" values + * (ones not containing "=") are prefixed with this key. + * + * For backwards compatibility with old plugins, and to support + * scripting languages, if magic_config_key == NULL then if the + * first parameter is bare it is prefixed with the key "script", and + * any other bare parameters are errors. + */ + magic_config_key = backend->magic_config_key (backend); + for (i = 0; optind < argc; ++i, ++optind) { + p = strchr (argv[optind], '='); + if (p && is_config_key (argv[optind], p - argv[optind])) { /* key=value */ + *p = '\0'; + backend->config (backend, argv[optind], p+1); + } + else if (magic_config_key == NULL) { + if (i == 0) /* magic script parameter */ + backend->config (backend, "script", argv[optind]); + else { + fprintf (stderr, + "%s: expecting key=value on the command line but got: %s\n", + program_name, argv[optind]); + exit (EXIT_FAILURE); + } + } + else { /* magic config key */ + backend->config (backend, magic_config_key, argv[optind]); + } + } + + /* This must run after parsing the parameters so that the script can + * be loaded for scripting languages. But it must be called before + * config_complete so that the plugin doesn't check for missing + * parameters. + */ + if (dump_plugin) { + backend->dump_fields (backend); + backend->free (backend); + exit (EXIT_SUCCESS); + } + + backend->config_complete (backend); + + start_serving (); + + backend->free (backend); + backend = NULL; + + free (unixsocket); + free (pidfile); + + if (random_fifo) { + unlink (random_fifo); + free (random_fifo); + } + + if (random_fifo_dir) { + rmdir (random_fifo_dir); + free (random_fifo_dir); + } + + crypto_free (); + + exit (EXIT_SUCCESS); +} + +/* Implementation of '-U -' */ +static char * +make_random_fifo (void) +{ + char template[] = "/tmp/nbdkitXXXXXX"; + char *unixsocket; + + if (mkdtemp (template) == NULL) { + perror ("mkdtemp"); + return NULL; + } + + random_fifo_dir = strdup (template); + if (random_fifo_dir == NULL) { + perror ("strdup"); + return NULL; + } + + if (asprintf (&random_fifo, "%s/socket", template) == -1) { + perror ("asprintf"); + return NULL; + } + + unixsocket = strdup (random_fifo); + if (unixsocket == NULL) { + perror ("strdup"); + return NULL; + } + + return unixsocket; +} + +static struct backend * +open_plugin_so (size_t i, const char *name, int short_name) +{ + struct backend *ret; + char *filename = (char *) name; + bool free_filename = false; + void *dl; + struct nbdkit_plugin *(*plugin_init) (void); + char *error; + + if (short_name) { + /* Short names are rewritten relative to the plugindir. */ + if (asprintf (&filename, + "%s/nbdkit-%s-plugin.so", plugindir, name) == -1) { + perror ("asprintf"); + exit (EXIT_FAILURE); + } + free_filename = true; + } + + dl = dlopen (filename, RTLD_NOW|RTLD_GLOBAL); + if (dl == NULL) { + fprintf (stderr, + "%s: error: cannot open plugin '%s': %s\n" + "Use '%s --help' or " + "read the nbdkit(1) manual page for documentation.\n", + program_name, name, dlerror (), + program_name); + exit (EXIT_FAILURE); + } + + /* Initialize the plugin. See dlopen(3) to understand C weirdness. */ + dlerror (); + *(void **) (&plugin_init) = dlsym (dl, "plugin_init"); + if ((error = dlerror ()) != NULL) { + fprintf (stderr, "%s: %s: %s\n", program_name, name, error); + exit (EXIT_FAILURE); + } + if (!plugin_init) { + fprintf (stderr, "%s: %s: invalid plugin_init\n", program_name, name); + exit (EXIT_FAILURE); + } + + /* Register the plugin. */ + ret = plugin_register (i, filename, dl, plugin_init); + + if (free_filename) + free (filename); + + return ret; +} + +static struct backend * +open_filter_so (struct backend *next, size_t i, + const char *name, int short_name) +{ + struct backend *ret; + char *filename = (char *) name; + bool free_filename = false; + void *dl; + struct nbdkit_filter *(*filter_init) (void); + char *error; + + if (short_name) { + /* Short names are rewritten relative to the filterdir. */ + if (asprintf (&filename, + "%s/nbdkit-%s-filter.so", filterdir, name) == -1) { + perror ("asprintf"); + exit (EXIT_FAILURE); + } + free_filename = true; + } + + dl = dlopen (filename, RTLD_NOW|RTLD_GLOBAL); + if (dl == NULL) { + fprintf (stderr, "%s: error: cannot open filter '%s': %s\n", + program_name, name, dlerror ()); + exit (EXIT_FAILURE); + } + + /* Initialize the filter. See dlopen(3) to understand C weirdness. */ + dlerror (); + *(void **) (&filter_init) = dlsym (dl, "filter_init"); + if ((error = dlerror ()) != NULL) { + fprintf (stderr, "%s: %s: %s\n", program_name, name, error); + exit (EXIT_FAILURE); + } + if (!filter_init) { + fprintf (stderr, "%s: %s: invalid filter_init\n", program_name, name); + exit (EXIT_FAILURE); + } + + /* Register the filter. */ + ret = filter_register (next, i, filename, dl, filter_init); + + if (free_filename) + free (filename); + + return ret; +} + +static void +start_serving (void) +{ + int *socks; + size_t nr_socks; + size_t i; + + /* If the user has mixed up -p/-U/-s options, then give an error. + * + * XXX Actually the server could easily be extended to handle both + * TCP/IP and Unix sockets, or even multiple TCP/IP ports. + */ + if ((port && unixsocket) || (port && listen_stdin) || + (unixsocket && listen_stdin) || (listen_stdin && run)) { + fprintf (stderr, + "%s: -p, -U and -s options cannot appear at the same time\n", + program_name); + exit (EXIT_FAILURE); + } + + set_up_quit_pipe (); + set_up_signals (); + + /* Socket activation -- we are handling connections on pre-opened + * file descriptors [FIRST_SOCKET_ACTIVATION_FD .. + * FIRST_SOCKET_ACTIVATION_FD+nr_socks-1]. + */ + if (socket_activation) { + nr_socks = socket_activation; + debug ("using socket activation, nr_socks = %zu", nr_socks); + socks = malloc (sizeof (int) * nr_socks); + if (socks == NULL) { + perror ("malloc"); + exit (EXIT_FAILURE); + } + for (i = 0; i < nr_socks; ++i) + socks[i] = FIRST_SOCKET_ACTIVATION_FD + i; + change_user (); + write_pidfile (); + accept_incoming_connections (socks, nr_socks); + free_listening_sockets (socks, nr_socks); /* also closes them */ + return; + } + + /* Handling a single connection on stdin/stdout. */ + if (listen_stdin) { + change_user (); + write_pidfile (); + threadlocal_new_server_thread (); + if (handle_single_connection (0, 1) == -1) + exit (EXIT_FAILURE); + return; + } + + /* Handling multiple connections on TCP/IP or a Unix domain socket. */ + if (unixsocket) + socks = bind_unix_socket (&nr_socks); + else + socks = bind_tcpip_socket (&nr_socks); + + run_command (); + change_user (); + fork_into_background (); + write_pidfile (); + accept_incoming_connections (socks, nr_socks); + free_listening_sockets (socks, nr_socks); +} + +static void +write_pidfile (void) +{ + int fd; + pid_t pid; + char pidstr[64]; + size_t len; + + if (!pidfile) + return; + + pid = getpid (); + snprintf (pidstr, sizeof pidstr, "%d\n", pid); + len = strlen (pidstr); + + fd = open (pidfile, O_WRONLY|O_TRUNC|O_CREAT|O_CLOEXEC|O_NOCTTY, 0644); + if (fd == -1) { + perror (pidfile); + exit (EXIT_FAILURE); + } + + if (write (fd, pidstr, len) < len || + close (fd) == -1) { + perror (pidfile); + exit (EXIT_FAILURE); + } + + debug ("written pidfile %s", pidfile); +} + +/* When parsing plugin and filter config key=value from the command + * line, is the key a simple alphanumeric with period, underscore or + * dash? + */ +static bool +is_config_key (const char *key, size_t len) +{ + static const char allowed_first[] = + "abcdefghijklmnopqrstuvwxyz" + "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; + static const char allowed[] = + "._-" + "0123456789" + "abcdefghijklmnopqrstuvwxyz" + "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; + + if (len == 0) + return false; + + if (strchr (allowed_first, key[0]) == NULL) + return false; + + /* This works in context of the caller since key[len] == '='. */ + if (strspn (key, allowed) != len) + return false; + + return true; +} diff --git a/server/nbdkit.pc.in b/server/nbdkit.pc.in new file mode 100644 index 0000000..fe8f511 --- /dev/null +++ b/server/nbdkit.pc.in @@ -0,0 +1,16 @@ +prefix=@prefix@ +exec_prefix=@exec_prefix@ +libdir=@libdir@ +includedir=@includedir@ +plugindir=@libdir@/nbdkit/plugins +filterdir=@libdir@/nbdkit/filters + +Name: @PACKAGE_NAME@ +Version: @PACKAGE_VERSION@ +Description: A toolkit for creating NBD servers +Requires: +Cflags: +# There is no library that NBD plugins have to be linked against. +# All symbols like 'nbdkit_error' are provided by the main nbdkit +# server binary when the plugin is loaded. So this is empty. +Libs: diff --git a/server/nbdkit.syms b/server/nbdkit.syms new file mode 100644 index 0000000..f8eef21 --- /dev/null +++ b/server/nbdkit.syms @@ -0,0 +1,59 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# This linker script controls the visibility of symbols in the final +# nbdkit binary. We want to export some symbols to plugins, but at +# the same time we don't want plugins to be able to call arbitrary +# functions from nbdkit, so this script lists only the symbols we want +# to export. + +{ + # The functions we want plugins and filters to call. + global: + nbdkit_absolute_path; + nbdkit_add_extent; + nbdkit_debug; + nbdkit_error; + nbdkit_extents_count; + nbdkit_extents_free; + nbdkit_extents_new; + nbdkit_get_extent; + nbdkit_parse_bool; + nbdkit_parse_size; + nbdkit_read_password; + nbdkit_realpath; + nbdkit_set_error; + nbdkit_vdebug; + nbdkit_verror; + + # Everything else is hidden. + local: *; +}; diff --git a/server/options.h b/server/options.h new file mode 100644 index 0000000..0be19f1 --- /dev/null +++ b/server/options.h @@ -0,0 +1,109 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_OPTIONS_H +#define NBDKIT_OPTIONS_H + +#include <stdbool.h> +#include <getopt.h> +#include <limits.h> +#include <string.h> + +enum { + HELP_OPTION = CHAR_MAX + 1, + DUMP_CONFIG_OPTION, + DUMP_PLUGIN_OPTION, + EXIT_WITH_PARENT_OPTION, + FILTER_OPTION, + LOG_OPTION, + LONG_OPTIONS_OPTION, + RUN_OPTION, + SELINUX_LABEL_OPTION, + SHORT_OPTIONS_OPTION, + TLS_OPTION, + TLS_CERTIFICATES_OPTION, + TLS_PSK_OPTION, + TLS_VERIFY_PEER_OPTION, +}; + +static const char *short_options = "D:e:fg:i:nop:P:rst:u:U:vV"; +static const struct option long_options[] = { + { "debug", required_argument, NULL, 'D' }, + { "dump-config", no_argument, NULL, DUMP_CONFIG_OPTION }, + { "dump-plugin", no_argument, NULL, DUMP_PLUGIN_OPTION }, + { "exit-with-parent", no_argument, NULL, EXIT_WITH_PARENT_OPTION }, + { "export", required_argument, NULL, 'e' }, + { "export-name", required_argument, NULL, 'e' }, + { "exportname", required_argument, NULL, 'e' }, + { "filter", required_argument, NULL, FILTER_OPTION }, + { "foreground", no_argument, NULL, 'f' }, + { "no-fork", no_argument, NULL, 'f' }, + { "group", required_argument, NULL, 'g' }, + { "help", no_argument, NULL, HELP_OPTION }, + { "ip-addr", required_argument, NULL, 'i' }, + { "ipaddr", required_argument, NULL, 'i' }, + { "log", required_argument, NULL, LOG_OPTION }, + { "long-options", no_argument, NULL, LONG_OPTIONS_OPTION }, + { "new-style", no_argument, NULL, 'n' }, + { "newstyle", no_argument, NULL, 'n' }, + { "old-style", no_argument, NULL, 'o' }, + { "oldstyle", no_argument, NULL, 'o' }, + { "pid-file", required_argument, NULL, 'P' }, + { "pidfile", required_argument, NULL, 'P' }, + { "port", required_argument, NULL, 'p' }, + { "read-only", no_argument, NULL, 'r' }, + { "readonly", no_argument, NULL, 'r' }, + { "run", required_argument, NULL, RUN_OPTION }, + { "selinux-label", required_argument, NULL, SELINUX_LABEL_OPTION }, + { "short-options", no_argument, NULL, SHORT_OPTIONS_OPTION }, + { "single", no_argument, NULL, 's' }, + { "stdin", no_argument, NULL, 's' }, + { "threads", required_argument, NULL, 't' }, + { "tls", required_argument, NULL, TLS_OPTION }, + { "tls-certificates", required_argument, NULL, TLS_CERTIFICATES_OPTION }, + { "tls-psk", required_argument, NULL, TLS_PSK_OPTION }, + { "tls-verify-peer", no_argument, NULL, TLS_VERIFY_PEER_OPTION }, + { "unix", required_argument, NULL, 'U' }, + { "user", required_argument, NULL, 'u' }, + { "verbose", no_argument, NULL, 'v' }, + { "version", no_argument, NULL, 'V' }, + { NULL }, +}; + +/* Is it a plugin or filter name relative to the plugindir/filterdir? */ +static inline bool +is_short_name (const char *filename) +{ + return strchr (filename, '.') == NULL && strchr (filename, '/') == NULL; +} + +#endif /* NBDKIT_OPTIONS_H */ diff --git a/server/plugins.c b/server/plugins.c new file mode 100644 index 0000000..947bb6d --- /dev/null +++ b/server/plugins.c @@ -0,0 +1,888 @@ +/* nbdkit + * Copyright (C) 2013-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <string.h> +#include <inttypes.h> +#include <assert.h> +#include <errno.h> + +#include <dlfcn.h> + +#include "internal.h" + +/* Maximum read or write request that we will handle. */ +#define MAX_REQUEST_SIZE (64 * 1024 * 1024) + +/* We extend the generic backend struct with extra fields relating + * to this plugin. + */ +struct backend_plugin { + struct backend backend; + char *name; /* copy of plugin.name */ + char *filename; + void *dl; + struct nbdkit_plugin plugin; +}; + +static void +plugin_free (struct backend *b) +{ + struct backend_plugin *p = container_of (b, struct backend_plugin, backend); + + /* Acquiring this lock prevents any plugin callbacks from running + * simultaneously. + */ + lock_unload (); + + debug ("%s: unload", p->name); + if (p->plugin.unload) + p->plugin.unload (); + + if (DO_DLCLOSE) + dlclose (p->dl); + free (p->filename); + + unlock_unload (); + + free (p->name); + free (p); +} + +static int +plugin_thread_model (struct backend *b) +{ + struct backend_plugin *p = container_of (b, struct backend_plugin, backend); + + return p->plugin._thread_model; +} + +static const char * +plugin_name (struct backend *b) +{ + struct backend_plugin *p = container_of (b, struct backend_plugin, backend); + + return p->name; +} + +static void +plugin_usage (struct backend *b) +{ + struct backend_plugin *p = container_of (b, struct backend_plugin, backend); + const char *t; + + printf ("plugin: %s", p->name); + if (p->plugin.longname) + printf (" (%s)", p->plugin.longname); + printf ("\n"); + printf ("(%s)\n", p->filename); + if (p->plugin.description) { + printf ("%s", p->plugin.description); + if ((t = strrchr (p->plugin.description, '\n')) == NULL || t[1]) + printf ("\n"); + } + if (p->plugin.config_help) { + printf ("%s", p->plugin.config_help); + if ((t = strrchr (p->plugin.config_help, '\n')) == NULL || t[1]) + printf ("\n"); + } +} + +static const char * +plugin_version (struct backend *b) +{ + struct backend_plugin *p = container_of (b, struct backend_plugin, backend); + + return p->plugin.version; +} + +/* This implements the --dump-plugin option. */ +static void +plugin_dump_fields (struct backend *b) +{ + struct backend_plugin *p = container_of (b, struct backend_plugin, backend); + char *path; + + path = nbdkit_realpath (p->filename); + printf ("path=%s\n", path); + free (path); + + printf ("name=%s\n", p->name); + if (p->plugin.version) + printf ("version=%s\n", p->plugin.version); + + printf ("api_version=%d\n", p->plugin._api_version); + printf ("struct_size=%" PRIu64 "\n", p->plugin._struct_size); + printf ("thread_model="); + switch (p->plugin._thread_model) { + case NBDKIT_THREAD_MODEL_SERIALIZE_CONNECTIONS: + printf ("serialize_connections"); + break; + case NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS: + printf ("serialize_all_requests"); + break; + case NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS: + printf ("serialize_requests"); + break; + case NBDKIT_THREAD_MODEL_PARALLEL: + printf ("parallel"); + break; + default: + printf ("%d # unknown thread model!", p->plugin._thread_model); + break; + } + printf ("\n"); + printf ("errno_is_preserved=%d\n", p->plugin.errno_is_preserved); + if (p->plugin.magic_config_key) + printf ("magic_config_key=%s\n", p->plugin.magic_config_key); + +#define HAS(field) if (p->plugin.field) printf ("has_%s=1\n", #field) + HAS (longname); + HAS (description); + HAS (load); + HAS (unload); + HAS (dump_plugin); + HAS (config); + HAS (config_complete); + HAS (config_help); + HAS (open); + HAS (close); + HAS (get_size); + HAS (can_write); + HAS (can_flush); + HAS (is_rotational); + HAS (can_trim); + HAS (_pread_old); + HAS (_pwrite_old); + HAS (_flush_old); + HAS (_trim_old); + HAS (_zero_old); + HAS (can_zero); + HAS (can_fua); + HAS (pread); + HAS (pwrite); + HAS (flush); + HAS (trim); + HAS (zero); + HAS (can_multi_conn); + HAS (can_extents); + HAS (extents); +#undef HAS + + /* Custom fields. */ + if (p->plugin.dump_plugin) + p->plugin.dump_plugin (); +} + +static void +plugin_config (struct backend *b, const char *key, const char *value) +{ + struct backend_plugin *p = container_of (b, struct backend_plugin, backend); + + debug ("%s: config key=%s, value=%s", p->name, key, value); + + if (p->plugin.config == NULL) { + fprintf (stderr, + "%s: %s: this plugin does not need command line configuration\n" + "Try using: %s --help %s\n", + program_name, p->filename, + program_name, p->filename); + exit (EXIT_FAILURE); + } + + if (p->plugin.config (key, value) == -1) + exit (EXIT_FAILURE); +} + +static void +plugin_config_complete (struct backend *b) +{ + struct backend_plugin *p = container_of (b, struct backend_plugin, backend); + + debug ("%s: config_complete", p->name); + + if (!p->plugin.config_complete) + return; + + if (p->plugin.config_complete () == -1) + exit (EXIT_FAILURE); +} + +static const char * +plugin_magic_config_key (struct backend *b) +{ + struct backend_plugin *p = container_of (b, struct backend_plugin, backend); + + return p->plugin.magic_config_key; +} + +static int +plugin_open (struct backend *b, struct connection *conn, int readonly) +{ + struct backend_plugin *p = container_of (b, struct backend_plugin, backend); + void *handle; + + assert (connection_get_handle (conn, 0) == NULL); + assert (p->plugin.open != NULL); + + debug ("%s: open readonly=%d", p->name, readonly); + + handle = p->plugin.open (readonly); + if (!handle) + return -1; + + connection_set_handle (conn, 0, handle); + return 0; +} + +/* We don't expose .prepare and .finalize to plugins since they aren't + * necessary. Plugins can easily do the same work in .open and + * .close. + */ +static int +plugin_prepare (struct backend *b, struct connection *conn) +{ + return 0; +} + +static int +plugin_finalize (struct backend *b, struct connection *conn) +{ + return 0; +} + +static void +plugin_close (struct backend *b, struct connection *conn) +{ + struct backend_plugin *p = container_of (b, struct backend_plugin, backend); + + assert (connection_get_handle (conn, 0)); + + debug ("close"); + + if (p->plugin.close) + p->plugin.close (connection_get_handle (conn, 0)); + + connection_set_handle (conn, 0, NULL); +} + +static int64_t +plugin_get_size (struct backend *b, struct connection *conn) +{ + struct backend_plugin *p = container_of (b, struct backend_plugin, backend); + + assert (connection_get_handle (conn, 0)); + assert (p->plugin.get_size != NULL); + + debug ("get_size"); + + return p->plugin.get_size (connection_get_handle (conn, 0)); +} + +static int +plugin_can_write (struct backend *b, struct connection *conn) +{ + struct backend_plugin *p = container_of (b, struct backend_plugin, backend); + + assert (connection_get_handle (conn, 0)); + + debug ("can_write"); + + if (p->plugin.can_write) + return p->plugin.can_write (connection_get_handle (conn, 0)); + else + return p->plugin.pwrite || p->plugin._pwrite_old; +} + +static int +plugin_can_flush (struct backend *b, struct connection *conn) +{ + struct backend_plugin *p = container_of (b, struct backend_plugin, backend); + + assert (connection_get_handle (conn, 0)); + + debug ("can_flush"); + + if (p->plugin.can_flush) + return p->plugin.can_flush (connection_get_handle (conn, 0)); + else + return p->plugin.flush || p->plugin._flush_old; +} + +static int +plugin_is_rotational (struct backend *b, struct connection *conn) +{ + struct backend_plugin *p = container_of (b, struct backend_plugin, backend); + + assert (connection_get_handle (conn, 0)); + + debug ("is_rotational"); + + if (p->plugin.is_rotational) + return p->plugin.is_rotational (connection_get_handle (conn, 0)); + else + return 0; /* assume false */ +} + +static int +plugin_can_trim (struct backend *b, struct connection *conn) +{ + struct backend_plugin *p = container_of (b, struct backend_plugin, backend); + + assert (connection_get_handle (conn, 0)); + + debug ("can_trim"); + + if (p->plugin.can_trim) + return p->plugin.can_trim (connection_get_handle (conn, 0)); + else + return p->plugin.trim || p->plugin._trim_old; +} + +static int +plugin_can_zero (struct backend *b, struct connection *conn) +{ + struct backend_plugin *p = container_of (b, struct backend_plugin, backend); + + assert (connection_get_handle (conn, 0)); + + debug ("can_zero"); + + /* Note the special case here: the plugin's .can_zero controls only + * whether we call .zero; while the backend expects .can_zero to + * return whether to advertise zero support. Since we ALWAYS know + * how to fall back to .pwrite in plugin_zero(), we ignore the + * difference between the plugin's true or false return, and only + * call it to catch a -1 failure during negotiation. */ + if (p->plugin.can_zero && + p->plugin.can_zero (connection_get_handle (conn, 0)) == -1) + return -1; + return plugin_can_write (b, conn); +} + +static int +plugin_can_extents (struct backend *b, struct connection *conn) +{ + struct backend_plugin *p = container_of (b, struct backend_plugin, backend); + + assert (connection_get_handle (conn, 0)); + + debug ("can_extents"); + + if (p->plugin.can_extents) + return p->plugin.can_extents (connection_get_handle (conn, 0)); + else + return p->plugin.extents != NULL; +} + +static int +plugin_can_fua (struct backend *b, struct connection *conn) +{ + struct backend_plugin *p = container_of (b, struct backend_plugin, backend); + int r; + + assert (connection_get_handle (conn, 0)); + + debug ("can_fua"); + + /* The plugin must use API version 2 and have .can_fua return + NBDKIT_FUA_NATIVE before we will pass the FUA flag on. */ + if (p->plugin.can_fua) { + r = p->plugin.can_fua (connection_get_handle (conn, 0)); + if (r > NBDKIT_FUA_EMULATE && p->plugin._api_version == 1) + r = NBDKIT_FUA_EMULATE; + return r; + } + /* We intend to call .flush even if .can_flush returns false. */ + if (p->plugin.flush || p->plugin._flush_old) + return NBDKIT_FUA_EMULATE; + return NBDKIT_FUA_NONE; +} + +static int +plugin_can_multi_conn (struct backend *b, struct connection *conn) +{ + struct backend_plugin *p = container_of (b, struct backend_plugin, backend); + + assert (connection_get_handle (conn, 0)); + + debug ("can_multi_conn"); + + if (p->plugin.can_multi_conn) + return p->plugin.can_multi_conn (connection_get_handle (conn, 0)); + else + return 0; /* assume false */ +} + +/* Plugins and filters can call this to set the true errno, in cases + * where !errno_is_preserved. + */ +void +nbdkit_set_error (int err) +{ + threadlocal_set_error (err); +} + +/* Grab the appropriate error value. + */ +static int +get_error (struct backend_plugin *p) +{ + int ret = threadlocal_get_error (); + + if (!ret && p->plugin.errno_is_preserved) + ret = errno; + return ret ? ret : EIO; +} + +static int +plugin_pread (struct backend *b, struct connection *conn, + void *buf, uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + struct backend_plugin *p = container_of (b, struct backend_plugin, backend); + int r; + + assert (connection_get_handle (conn, 0)); + assert (p->plugin.pread || p->plugin._pread_old); + assert (!flags); + + debug ("pread count=%" PRIu32 " offset=%" PRIu64, count, offset); + + if (p->plugin.pread) + r = p->plugin.pread (connection_get_handle (conn, 0), buf, count, offset, + 0); + else + r = p->plugin._pread_old (connection_get_handle (conn, 0), buf, count, + offset); + if (r == -1) + *err = get_error (p); + return r; +} + +static int +plugin_flush (struct backend *b, struct connection *conn, uint32_t flags, + int *err) +{ + struct backend_plugin *p = container_of (b, struct backend_plugin, backend); + int r; + + assert (connection_get_handle (conn, 0)); + assert (!flags); + + debug ("flush"); + + if (p->plugin.flush) + r = p->plugin.flush (connection_get_handle (conn, 0), 0); + else if (p->plugin._flush_old) + r = p->plugin._flush_old (connection_get_handle (conn, 0)); + else { + *err = EINVAL; + return -1; + } + if (r == -1) + *err = get_error (p); + return r; +} + +static int +plugin_pwrite (struct backend *b, struct connection *conn, + const void *buf, uint32_t count, uint64_t offset, uint32_t flags, + int *err) +{ + int r; + struct backend_plugin *p = container_of (b, struct backend_plugin, backend); + bool fua = flags & NBDKIT_FLAG_FUA; + bool need_flush = false; + + assert (connection_get_handle (conn, 0)); + assert (!(flags & ~NBDKIT_FLAG_FUA)); + + debug ("pwrite count=%" PRIu32 " offset=%" PRIu64 " fua=%d", count, offset, + fua); + + if (fua && plugin_can_fua (b, conn) != NBDKIT_FUA_NATIVE) { + flags &= ~NBDKIT_FLAG_FUA; + need_flush = true; + } + if (p->plugin.pwrite) + r = p->plugin.pwrite (connection_get_handle (conn, 0), buf, count, offset, + flags); + else if (p->plugin._pwrite_old) + r = p->plugin._pwrite_old (connection_get_handle (conn, 0), + buf, count, offset); + else { + *err = EROFS; + return -1; + } + if (r != -1 && need_flush) + r = plugin_flush (b, conn, 0, err); + if (r == -1) + *err = get_error (p); + return r; +} + +static int +plugin_trim (struct backend *b, struct connection *conn, + uint32_t count, uint64_t offset, uint32_t flags, int *err) +{ + int r; + struct backend_plugin *p = container_of (b, struct backend_plugin, backend); + bool fua = flags & NBDKIT_FLAG_FUA; + bool need_flush = false; + + assert (connection_get_handle (conn, 0)); + assert (!(flags & ~NBDKIT_FLAG_FUA)); + + debug ("trim count=%" PRIu32 " offset=%" PRIu64 " fua=%d", count, offset, + fua); + + if (fua && plugin_can_fua (b, conn) != NBDKIT_FUA_NATIVE) { + flags &= ~NBDKIT_FLAG_FUA; + need_flush = true; + } + if (p->plugin.trim) + r = p->plugin.trim (connection_get_handle (conn, 0), count, offset, flags); + else if (p->plugin._trim_old) + r = p->plugin._trim_old (connection_get_handle (conn, 0), count, offset); + else { + *err = EINVAL; + return -1; + } + if (r != -1 && need_flush) + r = plugin_flush (b, conn, 0, err); + if (r == -1) + *err = get_error (p); + return r; +} + +static int +plugin_zero (struct backend *b, struct connection *conn, + uint32_t count, uint64_t offset, uint32_t flags, int *err) +{ + struct backend_plugin *p = container_of (b, struct backend_plugin, backend); + char *buf; + uint32_t limit; + int r = -1; + bool may_trim = flags & NBDKIT_FLAG_MAY_TRIM; + bool fua = flags & NBDKIT_FLAG_FUA; + bool emulate = false; + bool need_flush = false; + int can_zero = 1; /* TODO cache this per-connection? */ + + assert (connection_get_handle (conn, 0)); + assert (!(flags & ~(NBDKIT_FLAG_MAY_TRIM | NBDKIT_FLAG_FUA))); + + debug ("zero count=%" PRIu32 " offset=%" PRIu64 " may_trim=%d fua=%d", + count, offset, may_trim, fua); + + if (fua && plugin_can_fua (b, conn) != NBDKIT_FUA_NATIVE) { + flags &= ~NBDKIT_FLAG_FUA; + need_flush = true; + } + if (!count) + return 0; + if (p->plugin.can_zero) { + can_zero = p->plugin.can_zero (connection_get_handle (conn, 0)); + assert (can_zero != -1); + } + + if (can_zero) { + errno = 0; + if (p->plugin.zero) + r = p->plugin.zero (connection_get_handle (conn, 0), count, offset, + flags); + else if (p->plugin._zero_old) + r = p->plugin._zero_old (connection_get_handle (conn, 0), count, offset, + may_trim); + else + emulate = true; + if (r == -1) + *err = emulate ? EOPNOTSUPP : get_error (p); + if (r == 0 || *err != EOPNOTSUPP) + goto done; + } + + assert (p->plugin.pwrite || p->plugin._pwrite_old); + flags &= ~NBDKIT_FLAG_MAY_TRIM; + threadlocal_set_error (0); + limit = count < MAX_REQUEST_SIZE ? count : MAX_REQUEST_SIZE; + buf = calloc (limit, 1); + if (!buf) { + *err = ENOMEM; + return -1; + } + + while (count) { + r = plugin_pwrite (b, conn, buf, limit, offset, flags, err); + if (r == -1) + break; + count -= limit; + if (count < limit) + limit = count; + } + + *err = errno; + free (buf); + errno = *err; + + done: + if (r != -1 && need_flush) + r = plugin_flush (b, conn, 0, err); + if (r == -1) + *err = get_error (p); + return r; +} + +static int +plugin_extents (struct backend *b, struct connection *conn, + uint32_t count, uint64_t offset, uint32_t flags, + struct nbdkit_extents *extents, int *err) +{ + struct backend_plugin *p = container_of (b, struct backend_plugin, backend); + bool req_one = flags & NBDKIT_FLAG_REQ_ONE; + int r; + + assert (connection_get_handle (conn, 0)); + assert (!(flags & ~NBDKIT_FLAG_REQ_ONE)); + + /* This should be true because plugin_can_extents checks it. */ + assert (p->plugin.extents); + + debug ("extents count=%" PRIu32 " offset=%" PRIu64 " req_one=%d", + count, offset, req_one); + + if (!count) + return 0; + + r = p->plugin.extents (connection_get_handle (conn, 0), count, offset, + flags, extents); + if (r >= 0 && nbdkit_extents_count (extents) < 1) { + nbdkit_error ("extents: plugin must return at least one extent"); + nbdkit_set_error (EINVAL); + r = -1; + } + if (r == -1) + *err = get_error (p); + return r; +} + +static struct backend plugin_functions = { + .free = plugin_free, + .thread_model = plugin_thread_model, + .name = plugin_name, + .plugin_name = plugin_name, + .usage = plugin_usage, + .version = plugin_version, + .dump_fields = plugin_dump_fields, + .config = plugin_config, + .config_complete = plugin_config_complete, + .magic_config_key = plugin_magic_config_key, + .open = plugin_open, + .prepare = plugin_prepare, + .finalize = plugin_finalize, + .close = plugin_close, + .get_size = plugin_get_size, + .can_write = plugin_can_write, + .can_flush = plugin_can_flush, + .is_rotational = plugin_is_rotational, + .can_trim = plugin_can_trim, + .can_zero = plugin_can_zero, + .can_extents = plugin_can_extents, + .can_fua = plugin_can_fua, + .can_multi_conn = plugin_can_multi_conn, + .pread = plugin_pread, + .pwrite = plugin_pwrite, + .flush = plugin_flush, + .trim = plugin_trim, + .zero = plugin_zero, + .extents = plugin_extents, +}; + +/* Register and load a plugin. */ +struct backend * +plugin_register (size_t index, const char *filename, + void *dl, struct nbdkit_plugin *(*plugin_init) (void)) +{ + struct backend_plugin *p; + const struct nbdkit_plugin *plugin; + size_t i, len, size; + + p = malloc (sizeof *p); + if (p == NULL) { + out_of_memory: + perror ("strdup"); + exit (EXIT_FAILURE); + } + + p->backend = plugin_functions; + p->backend.next = NULL; + p->backend.i = index; + p->filename = strdup (filename); + if (p->filename == NULL) goto out_of_memory; + p->dl = dl; + + debug ("registering plugin %s", p->filename); + + /* Call the initialization function which returns the address of the + * plugin's own 'struct nbdkit_plugin'. + */ + plugin = plugin_init (); + if (!plugin) { + fprintf (stderr, "%s: %s: plugin registration function failed\n", + program_name, p->filename); + exit (EXIT_FAILURE); + } + + /* Check for incompatible future versions. */ + if (plugin->_api_version < 0 || plugin->_api_version > 2) { + fprintf (stderr, + "%s: %s: plugin is incompatible with this version of nbdkit " + "(_api_version = %d)\n", + program_name, p->filename, plugin->_api_version); + exit (EXIT_FAILURE); + } + + /* Since the plugin might be much older than the current version of + * nbdkit, only copy up to the self-declared _struct_size of the + * plugin and zero out the rest. If the plugin is much newer then + * we'll only call the "old" fields. + */ + size = sizeof p->plugin; /* our struct */ + memset (&p->plugin, 0, size); + if (size > plugin->_struct_size) + size = plugin->_struct_size; + memcpy (&p->plugin, plugin, size); + + /* Check for the minimum fields which must exist in the + * plugin struct. + */ + if (p->plugin.name == NULL) { + fprintf (stderr, "%s: %s: plugin must have a .name field\n", + program_name, p->filename); + exit (EXIT_FAILURE); + } + if (p->plugin.open == NULL) { + fprintf (stderr, "%s: %s: plugin must have a .open callback\n", + program_name, p->filename); + exit (EXIT_FAILURE); + } + if (p->plugin.get_size == NULL) { + fprintf (stderr, "%s: %s: plugin must have a .get_size callback\n", + program_name, p->filename); + exit (EXIT_FAILURE); + } + if (p->plugin.pread == NULL && p->plugin._pread_old == NULL) { + fprintf (stderr, "%s: %s: plugin must have a .pread callback\n", + program_name, p->filename); + exit (EXIT_FAILURE); + } + + len = strlen (p->plugin.name); + if (len == 0) { + fprintf (stderr, "%s: %s: plugin.name field must not be empty\n", + program_name, p->filename); + exit (EXIT_FAILURE); + } + for (i = 0; i < len; ++i) { + if (!((p->plugin.name[i] >= '0' && p->plugin.name[i] <= '9') || + (p->plugin.name[i] >= 'a' && p->plugin.name[i] <= 'z') || + (p->plugin.name[i] >= 'A' && p->plugin.name[i] <= 'Z'))) { + fprintf (stderr, + "%s: %s: plugin.name ('%s') field " + "must contain only ASCII alphanumeric characters\n", + program_name, p->filename, p->plugin.name); + exit (EXIT_FAILURE); + } + } + + /* Copy the module's name into local storage, so that plugin.name + * survives past unload. + */ + p->name = strdup (p->plugin.name); + if (p->name == NULL) { + perror ("strdup"); + exit (EXIT_FAILURE); + } + + debug ("registered plugin %s (name %s)", p->filename, p->name); + + /* Set debug flags before calling load. */ + set_debug_flags (dl, p->name); + + /* Call the on-load callback if it exists. */ + debug ("%s: load", p->name); + if (p->plugin.load) + p->plugin.load (); + + return (struct backend *) p; +} + +/* Set all debug flags which apply to this plugin (also used by filters). */ +void +set_debug_flags (void *dl, const char *name) +{ + struct debug_flag *flag; + + for (flag = debug_flags; flag != NULL; flag = flag->next) { + if (!flag->used && strcmp (name, flag->name) == 0) { + CLEANUP_FREE char *var = NULL; + int *sym; + + /* Synthesize the name of the variable. */ + if (asprintf (&var, "%s_debug_%s", name, flag->flag) == -1) { + perror ("asprintf"); + exit (EXIT_FAILURE); + } + + /* Find the symbol. */ + sym = dlsym (dl, var); + if (sym == NULL) { + fprintf (stderr, + "%s: -D %s.%s: %s does not contain a " + "global variable called %s\n", + program_name, name, flag->flag, name, var); + exit (EXIT_FAILURE); + } + + /* Set the flag. */ + *sym = flag->value; + + /* Mark this flag as used. */ + flag->used = true; + } + } +} diff --git a/server/protocol-handshake-newstyle.c b/server/protocol-handshake-newstyle.c new file mode 100644 index 0000000..dac2032 --- /dev/null +++ b/server/protocol-handshake-newstyle.c @@ -0,0 +1,681 @@ +/* nbdkit + * Copyright (C) 2013-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> + +#include "internal.h" +#include "byte-swapping.h" +#include "protocol.h" + +/* Maximum number of client options we allow before giving up. */ +#define MAX_NR_OPTIONS 32 + +/* Maximum length of any option data (bytes). */ +#define MAX_OPTION_LENGTH 4096 + +/* Receive newstyle options. */ +static int +send_newstyle_option_reply (struct connection *conn, + uint32_t option, uint32_t reply) +{ + struct fixed_new_option_reply fixed_new_option_reply; + + fixed_new_option_reply.magic = htobe64 (NBD_REP_MAGIC); + fixed_new_option_reply.option = htobe32 (option); + fixed_new_option_reply.reply = htobe32 (reply); + fixed_new_option_reply.replylen = htobe32 (0); + + if (conn->send (conn, + &fixed_new_option_reply, + sizeof fixed_new_option_reply) == -1) { + /* The protocol document says that the client is allowed to simply + * drop the connection after sending NBD_OPT_ABORT, or may read + * the reply. + */ + if (option == NBD_OPT_ABORT) + debug ("write: %s: %m", name_of_nbd_opt (option)); + else + nbdkit_error ("write: %s: %m", name_of_nbd_opt (option)); + return -1; + } + + return 0; +} + +static int +send_newstyle_option_reply_exportname (struct connection *conn, + uint32_t option, uint32_t reply, + const char *exportname) +{ + struct fixed_new_option_reply fixed_new_option_reply; + size_t name_len = strlen (exportname); + uint32_t len; + + fixed_new_option_reply.magic = htobe64 (NBD_REP_MAGIC); + fixed_new_option_reply.option = htobe32 (option); + fixed_new_option_reply.reply = htobe32 (reply); + fixed_new_option_reply.replylen = htobe32 (name_len + sizeof (len)); + + if (conn->send (conn, + &fixed_new_option_reply, + sizeof fixed_new_option_reply) == -1) { + nbdkit_error ("write: %s: %m", name_of_nbd_opt (option)); + return -1; + } + + len = htobe32 (name_len); + if (conn->send (conn, &len, sizeof len) == -1) { + nbdkit_error ("write: %s: %s: %m", + name_of_nbd_opt (option), "sending length"); + return -1; + } + if (conn->send (conn, exportname, name_len) == -1) { + nbdkit_error ("write: %s: %s: %m", + name_of_nbd_opt (option), "sending export name"); + return -1; + } + + return 0; +} + +static int +send_newstyle_option_reply_info_export (struct connection *conn, + uint32_t option, uint32_t reply, + uint16_t info) +{ + struct fixed_new_option_reply fixed_new_option_reply; + struct fixed_new_option_reply_info_export export; + + fixed_new_option_reply.magic = htobe64 (NBD_REP_MAGIC); + fixed_new_option_reply.option = htobe32 (option); + fixed_new_option_reply.reply = htobe32 (reply); + fixed_new_option_reply.replylen = htobe32 (sizeof export); + export.info = htobe16 (info); + export.exportsize = htobe64 (conn->exportsize); + export.eflags = htobe16 (conn->eflags); + + if (conn->send (conn, + &fixed_new_option_reply, + sizeof fixed_new_option_reply) == -1 || + conn->send (conn, &export, sizeof export) == -1) { + nbdkit_error ("write: %s: %m", name_of_nbd_opt (option)); + return -1; + } + + return 0; +} + +static int +send_newstyle_option_reply_meta_context (struct connection *conn, + uint32_t option, uint32_t reply, + uint32_t context_id, + const char *name) +{ + struct fixed_new_option_reply fixed_new_option_reply; + struct fixed_new_option_reply_meta_context context; + const size_t namelen = strlen (name); + + debug ("newstyle negotiation: %s: replying with %s id %d", + name_of_nbd_opt (option), name, context_id); + fixed_new_option_reply.magic = htobe64 (NBD_REP_MAGIC); + fixed_new_option_reply.option = htobe32 (option); + fixed_new_option_reply.reply = htobe32 (reply); + fixed_new_option_reply.replylen = htobe32 (sizeof context + namelen); + context.context_id = htobe32 (context_id); + + if (conn->send (conn, + &fixed_new_option_reply, + sizeof fixed_new_option_reply) == -1 || + conn->send (conn, &context, sizeof context) == -1 || + conn->send (conn, name, namelen) == -1) { + nbdkit_error ("write: %s: %m", name_of_nbd_opt (option)); + return -1; + } + + return 0; +} + +/* Sub-function during negotiate_handshake_newstyle, to uniformly handle + * a client hanging up on a message boundary. + */ +static int __attribute__ ((format (printf, 4, 5))) +conn_recv_full (struct connection *conn, void *buf, size_t len, + const char *fmt, ...) +{ + int r = conn->recv (conn, buf, len); + va_list args; + + if (r == -1) { + va_start (args, fmt); + nbdkit_verror (fmt, args); + va_end (args); + return -1; + } + if (r == 0) { + /* During negotiation, client EOF on message boundary is less + * severe than failure in the middle of the buffer. */ + debug ("client closed input socket, closing connection"); + return -1; + } + return r; +} + +/* Sub-function of negotiate_handshake_newstyle_options below. It + * must be called on all non-error paths out of the options for-loop + * in that function. + */ +static int +finish_newstyle_options (struct connection *conn) +{ + int64_t r; + + r = backend->get_size (backend, conn); + if (r == -1) + return -1; + if (r < 0) { + nbdkit_error (".get_size function returned invalid value " + "(%" PRIi64 ")", r); + return -1; + } + conn->exportsize = (uint64_t) r; + + if (protocol_compute_eflags (conn, &conn->eflags) < 0) + return -1; + + debug ("newstyle negotiation: flags: export 0x%x", conn->eflags); + return 0; +} + +static int +negotiate_handshake_newstyle_options (struct connection *conn) +{ + struct new_option new_option; + size_t nr_options; + uint64_t version; + uint32_t option; + uint32_t optlen; + char data[MAX_OPTION_LENGTH+1]; + struct new_handshake_finish handshake_finish; + const char *optname; + + for (nr_options = 0; nr_options < MAX_NR_OPTIONS; ++nr_options) { + if (conn_recv_full (conn, &new_option, sizeof new_option, + "reading option: conn->recv: %m") == -1) + return -1; + + version = be64toh (new_option.version); + if (version != NEW_VERSION) { + nbdkit_error ("unknown option version %" PRIx64 + ", expecting %" PRIx64, + version, NEW_VERSION); + return -1; + } + + /* There is a maximum option length we will accept, regardless + * of the option type. + */ + optlen = be32toh (new_option.optlen); + if (optlen > MAX_OPTION_LENGTH) { + nbdkit_error ("client option data too long (%" PRIu32 ")", optlen); + return -1; + } + + option = be32toh (new_option.option); + optname = name_of_nbd_opt (option); + + /* In --tls=require / FORCEDTLS mode the only options allowed + * before TLS negotiation are NBD_OPT_ABORT and NBD_OPT_STARTTLS. + */ + if (tls == 2 && !conn->using_tls && + !(option == NBD_OPT_ABORT || option == NBD_OPT_STARTTLS)) { + if (send_newstyle_option_reply (conn, option, NBD_REP_ERR_TLS_REQD)) + return -1; + continue; + } + + switch (option) { + case NBD_OPT_EXPORT_NAME: + if (conn_recv_full (conn, data, optlen, + "read: %s: %m", name_of_nbd_opt (option)) == -1) + return -1; + /* Apart from printing it, ignore the export name. */ + data[optlen] = '\0'; + debug ("newstyle negotiation: %s: " + "client requested export '%s' (ignored)", + name_of_nbd_opt (option), data); + + /* We have to finish the handshake by sending handshake_finish. */ + if (finish_newstyle_options (conn) == -1) + return -1; + + memset (&handshake_finish, 0, sizeof handshake_finish); + handshake_finish.exportsize = htobe64 (conn->exportsize); + handshake_finish.eflags = htobe16 (conn->eflags); + + if (conn->send (conn, + &handshake_finish, + (conn->cflags & NBD_FLAG_NO_ZEROES) + ? offsetof (struct new_handshake_finish, zeroes) + : sizeof handshake_finish) == -1) { + nbdkit_error ("write: %s: %m", optname); + return -1; + } + break; + + case NBD_OPT_ABORT: + if (send_newstyle_option_reply (conn, option, NBD_REP_ACK) == -1) + return -1; + debug ("client sent %s to abort the connection", + name_of_nbd_opt (option)); + return -1; + + case NBD_OPT_LIST: + if (optlen != 0) { + if (send_newstyle_option_reply (conn, option, NBD_REP_ERR_INVALID) + == -1) + return -1; + if (conn_recv_full (conn, data, optlen, + "read: %s: %m", name_of_nbd_opt (option)) == -1) + return -1; + continue; + } + + /* Send back the exportname. */ + debug ("newstyle negotiation: %s: advertising export '%s'", + name_of_nbd_opt (option), exportname); + if (send_newstyle_option_reply_exportname (conn, option, NBD_REP_SERVER, + exportname) == -1) + return -1; + + if (send_newstyle_option_reply (conn, option, NBD_REP_ACK) == -1) + return -1; + break; + + case NBD_OPT_STARTTLS: + if (optlen != 0) { + if (send_newstyle_option_reply (conn, option, NBD_REP_ERR_INVALID) + == -1) + return -1; + if (conn_recv_full (conn, data, optlen, + "read: %s: %m", name_of_nbd_opt (option)) == -1) + return -1; + continue; + } + + if (tls == 0) { /* --tls=off (NOTLS mode). */ +#ifdef HAVE_GNUTLS +#define NO_TLS_REPLY NBD_REP_ERR_POLICY +#else +#define NO_TLS_REPLY NBD_REP_ERR_UNSUP +#endif + if (send_newstyle_option_reply (conn, option, NO_TLS_REPLY) == -1) + return -1; + } + else /* --tls=on or --tls=require */ { + /* We can't upgrade to TLS twice on the same connection. */ + if (conn->using_tls) { + if (send_newstyle_option_reply (conn, option, + NBD_REP_ERR_INVALID) == -1) + return -1; + continue; + } + + /* We have to send the (unencrypted) reply before starting + * the handshake. + */ + if (send_newstyle_option_reply (conn, option, NBD_REP_ACK) == -1) + return -1; + + /* Upgrade the connection to TLS. Also performs access control. */ + if (crypto_negotiate_tls (conn, conn->sockin, conn->sockout) == -1) + return -1; + conn->using_tls = true; + debug ("using TLS on this connection"); + } + break; + + case NBD_OPT_INFO: + case NBD_OPT_GO: + if (conn_recv_full (conn, data, optlen, + "read: %s: %m", optname) == -1) + return -1; + + if (optlen < 6) { /* 32 bit export length + 16 bit nr info */ + debug ("newstyle negotiation: %s option length < 6", optname); + + if (send_newstyle_option_reply (conn, option, NBD_REP_ERR_INVALID) + == -1) + return -1; + continue; + } + + { + uint32_t exportnamelen; + uint16_t nrinfos; + uint16_t info; + size_t i; + CLEANUP_FREE char *requested_exportname = NULL; + + /* Validate the name length and number of INFO requests. */ + memcpy (&exportnamelen, &data[0], 4); + exportnamelen = be32toh (exportnamelen); + if (exportnamelen > optlen-6 /* NB optlen >= 6, see above */) { + debug ("newstyle negotiation: %s: export name too long", optname); + if (send_newstyle_option_reply (conn, option, NBD_REP_ERR_INVALID) + == -1) + return -1; + continue; + } + memcpy (&nrinfos, &data[exportnamelen+4], 2); + nrinfos = be16toh (nrinfos); + if (optlen != 4 + exportnamelen + 2 + 2*nrinfos) { + debug ("newstyle negotiation: %s: " + "number of information requests incorrect", optname); + if (send_newstyle_option_reply (conn, option, NBD_REP_ERR_INVALID) + == -1) + return -1; + continue; + } + + /* As with NBD_OPT_EXPORT_NAME we print the export name and then + * ignore it. + */ + requested_exportname = malloc (exportnamelen+1); + if (requested_exportname == NULL) { + nbdkit_error ("malloc: %m"); + return -1; + } + memcpy (requested_exportname, &data[4], exportnamelen); + requested_exportname[exportnamelen] = '\0'; + debug ("newstyle negotiation: %s: " + "client requested export '%s' (ignored)", + optname, requested_exportname); + + /* The spec is confusing, but it is required that we send back + * NBD_INFO_EXPORT, even if the client did not request it! + * qemu client in particular does not request this, but will + * fail if we don't send it. + */ + if (finish_newstyle_options (conn) == -1) + return -1; + + if (send_newstyle_option_reply_info_export (conn, option, + NBD_REP_INFO, + NBD_INFO_EXPORT) == -1) + return -1; + + /* For now we ignore all other info requests (but we must + * ignore NBD_INFO_EXPORT if it was requested, because we + * replied already above). Therefore this loop doesn't do + * much at the moment. + */ + for (i = 0; i < nrinfos; ++i) { + memcpy (&info, &data[4 + exportnamelen + 2 + i*2], 2); + info = be16toh (info); + switch (info) { + case NBD_INFO_EXPORT: /* ignore - reply sent above */ break; + default: + debug ("newstyle negotiation: %s: " + "ignoring NBD_INFO_* request %u (%s)", + optname, (unsigned) info, name_of_nbd_info (info)); + break; + } + } + } + + /* Unlike NBD_OPT_EXPORT_NAME, NBD_OPT_GO sends back an ACK + * or ERROR packet. + */ + if (send_newstyle_option_reply (conn, option, NBD_REP_ACK) == -1) + return -1; + + break; + + case NBD_OPT_STRUCTURED_REPLY: + if (optlen != 0) { + if (send_newstyle_option_reply (conn, option, NBD_REP_ERR_INVALID) + == -1) + return -1; + if (conn_recv_full (conn, data, optlen, + "read: %s: %m", name_of_nbd_opt (option)) == -1) + return -1; + continue; + } + + debug ("newstyle negotiation: %s: client requested structured replies", + name_of_nbd_opt (option)); + + if (send_newstyle_option_reply (conn, option, NBD_REP_ACK) == -1) + return -1; + + conn->structured_replies = true; + break; + + case NBD_OPT_LIST_META_CONTEXT: + case NBD_OPT_SET_META_CONTEXT: + { + uint32_t opt_index; + uint32_t exportnamelen; + uint32_t nr_queries; + uint32_t querylen; + const char *what; + + if (conn_recv_full (conn, data, optlen, "read: %s: %m", optname) == -1) + return -1; + + if (!conn->structured_replies) { + if (send_newstyle_option_reply (conn, option, NBD_REP_ERR_INVALID) + == -1) + return -1; + continue; + } + + /* Minimum length of the option payload is: + * 32 bit export name length followed by empty export name + * + 32 bit number of queries followed by no queries + * = 8 bytes. + */ + what = "optlen < 8"; + if (optlen < 8) { + opt_meta_invalid_option_len: + debug ("newstyle negotiation: %s: invalid option length: %s", + optname, what); + + if (send_newstyle_option_reply (conn, option, NBD_REP_ERR_INVALID) + == -1) + return -1; + continue; + } + + /* Discard the export name. */ + memcpy (&exportnamelen, &data[0], 4); + exportnamelen = be32toh (exportnamelen); + opt_index = 4 + exportnamelen; + + /* Read the number of queries. */ + what = "reading number of queries"; + if (opt_index+4 > optlen) + goto opt_meta_invalid_option_len; + memcpy (&nr_queries, &data[opt_index], 4); + nr_queries = be32toh (nr_queries); + opt_index += 4; + + /* for LIST: nr_queries == 0 means return all meta contexts + * for SET: nr_queries == 0 means reset all contexts + */ + debug ("newstyle negotiation: %s: %s count: %d", optname, + option == NBD_OPT_LIST_META_CONTEXT ? "query" : "set", + nr_queries); + if (nr_queries == 0) { + if (option == NBD_OPT_SET_META_CONTEXT) + conn->meta_context_base_allocation = false; + else /* LIST */ { + if (send_newstyle_option_reply_meta_context + (conn, option, NBD_REP_META_CONTEXT, + 0, "base:allocation") == -1) + return -1; + } + + if (send_newstyle_option_reply (conn, option, NBD_REP_ACK) == -1) + return -1; + } + else { + /* Read and answer each query. */ + while (nr_queries > 0) { + what = "reading query string length"; + if (opt_index+4 > optlen) + goto opt_meta_invalid_option_len; + memcpy (&querylen, &data[opt_index], 4); + querylen = be32toh (querylen); + opt_index += 4; + what = "reading query string"; + if (opt_index + querylen > optlen) + goto opt_meta_invalid_option_len; + + debug ("newstyle negotiation: %s: %s %.*s", + optname, + option == NBD_OPT_LIST_META_CONTEXT ? "query" : "set", + (int) querylen, &data[opt_index]); + + /* For LIST, "base:" returns all supported contexts in the + * base namespace. We only support "base:allocation". + */ + if (option == NBD_OPT_LIST_META_CONTEXT && + querylen == 5 && + strncmp (&data[opt_index], "base:", 5) == 0) { + if (send_newstyle_option_reply_meta_context + (conn, option, NBD_REP_META_CONTEXT, + 0, "base:allocation") == -1) + return -1; + } + /* "base:allocation" requested by name. */ + else if (querylen == 15 && + strncmp (&data[opt_index], "base:allocation", 15) == 0) { + if (send_newstyle_option_reply_meta_context + (conn, option, NBD_REP_META_CONTEXT, + option == NBD_OPT_SET_META_CONTEXT + ? base_allocation_id : 0, + "base:allocation") == -1) + return -1; + if (option == NBD_OPT_SET_META_CONTEXT) + conn->meta_context_base_allocation = true; + } + /* Every other query must be ignored. */ + + opt_index += querylen; + nr_queries--; + } + if (send_newstyle_option_reply (conn, option, NBD_REP_ACK) == -1) + return -1; + } + debug ("newstyle negotiation: %s: reply complete", optname); + } + break; + + default: + /* Unknown option. */ + if (send_newstyle_option_reply (conn, option, NBD_REP_ERR_UNSUP) == -1) + return -1; + if (conn_recv_full (conn, data, optlen, + "reading unknown option data: conn->recv: %m") == -1) + return -1; + } + + /* Note, since it's not very clear from the protocol doc, that the + * client must send NBD_OPT_EXPORT_NAME or NBD_OPT_GO last, and + * that ends option negotiation. + */ + if (option == NBD_OPT_EXPORT_NAME || option == NBD_OPT_GO) + break; + } + + if (nr_options >= MAX_NR_OPTIONS) { + nbdkit_error ("client exceeded maximum number of options (%d)", + MAX_NR_OPTIONS); + return -1; + } + + /* In --tls=require / FORCEDTLS mode, we must have upgraded to TLS + * by the time we finish option negotiation. If not, give up. + */ + if (tls == 2 && !conn->using_tls) { + nbdkit_error ("non-TLS client tried to connect in --tls=require mode"); + return -1; + } + + return 0; +} + +int +protocol_handshake_newstyle (struct connection *conn) +{ + struct new_handshake handshake; + uint16_t gflags; + + gflags = NBD_FLAG_FIXED_NEWSTYLE | NBD_FLAG_NO_ZEROES; + + debug ("newstyle negotiation: flags: global 0x%x", gflags); + + memcpy (handshake.nbdmagic, "NBDMAGIC", 8); + handshake.version = htobe64 (NEW_VERSION); + handshake.gflags = htobe16 (gflags); + + if (conn->send (conn, &handshake, sizeof handshake) == -1) { + nbdkit_error ("write: %s: %m", "sending newstyle handshake"); + return -1; + } + + /* Client now sends us its 32 bit flags word ... */ + if (conn_recv_full (conn, &conn->cflags, sizeof conn->cflags, + "reading initial client flags: conn->recv: %m") == -1) + return -1; + conn->cflags = be32toh (conn->cflags); + /* ... which we check for accuracy. */ + debug ("newstyle negotiation: client flags: 0x%x", conn->cflags); + if (conn->cflags & ~gflags) { + nbdkit_error ("client requested unknown flags 0x%x", conn->cflags); + return -1; + } + + /* Receive newstyle options. */ + if (negotiate_handshake_newstyle_options (conn) == -1) + return -1; + + return 0; +} diff --git a/server/protocol-handshake-oldstyle.c b/server/protocol-handshake-oldstyle.c new file mode 100644 index 0000000..8dc87f4 --- /dev/null +++ b/server/protocol-handshake-oldstyle.c @@ -0,0 +1,93 @@ +/* nbdkit + * Copyright (C) 2013-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> + +#include "internal.h" +#include "byte-swapping.h" +#include "protocol.h" + +int +protocol_handshake_oldstyle (struct connection *conn) +{ + struct old_handshake handshake; + int64_t r; + uint64_t exportsize; + uint16_t gflags, eflags; + + /* In --tls=require / FORCEDTLS mode, old style handshakes are + * rejected because they cannot support TLS. + */ + if (tls == 2) { + nbdkit_error ("non-TLS client tried to connect in --tls=require mode"); + return -1; + } + + r = backend->get_size (backend, conn); + if (r == -1) + return -1; + if (r < 0) { + nbdkit_error (".get_size function returned invalid value " + "(%" PRIi64 ")", r); + return -1; + } + exportsize = (uint64_t) r; + conn->exportsize = exportsize; + + gflags = 0; + if (protocol_compute_eflags (conn, &eflags) < 0) + return -1; + + debug ("oldstyle negotiation: flags: global 0x%x export 0x%x", + gflags, eflags); + + memset (&handshake, 0, sizeof handshake); + memcpy (handshake.nbdmagic, "NBDMAGIC", 8); + handshake.version = htobe64 (OLD_VERSION); + handshake.exportsize = htobe64 (exportsize); + handshake.gflags = htobe16 (gflags); + handshake.eflags = htobe16 (eflags); + + if (conn->send (conn, &handshake, sizeof handshake) == -1) { + nbdkit_error ("write: %m"); + return -1; + } + + return 0; +} diff --git a/server/protocol-handshake.c b/server/protocol-handshake.c new file mode 100644 index 0000000..03377a9 --- /dev/null +++ b/server/protocol-handshake.c @@ -0,0 +1,143 @@ +/* nbdkit + * Copyright (C) 2013-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> + +#include "internal.h" +#include "byte-swapping.h" +#include "protocol.h" + +/* eflags calculation is the same between oldstyle and newstyle + * protocols. + */ +int +protocol_compute_eflags (struct connection *conn, uint16_t *flags) +{ + uint16_t eflags = NBD_FLAG_HAS_FLAGS; + int fl; + + fl = backend->can_write (backend, conn); + if (fl == -1) + return -1; + if (readonly || !fl) { + eflags |= NBD_FLAG_READ_ONLY; + conn->readonly = true; + } + if (!conn->readonly) { + fl = backend->can_zero (backend, conn); + if (fl == -1) + return -1; + if (fl) { + eflags |= NBD_FLAG_SEND_WRITE_ZEROES; + conn->can_zero = true; + } + + fl = backend->can_trim (backend, conn); + if (fl == -1) + return -1; + if (fl) { + eflags |= NBD_FLAG_SEND_TRIM; + conn->can_trim = true; + } + + fl = backend->can_fua (backend, conn); + if (fl == -1) + return -1; + if (fl) { + eflags |= NBD_FLAG_SEND_FUA; + conn->can_fua = true; + } + } + + fl = backend->can_flush (backend, conn); + if (fl == -1) + return -1; + if (fl) { + eflags |= NBD_FLAG_SEND_FLUSH; + conn->can_flush = true; + } + + fl = backend->is_rotational (backend, conn); + if (fl == -1) + return -1; + if (fl) { + eflags |= NBD_FLAG_ROTATIONAL; + conn->is_rotational = true; + } + + fl = backend->can_multi_conn (backend, conn); + if (fl == -1) + return -1; + if (fl) { + eflags |= NBD_FLAG_CAN_MULTI_CONN; + conn->can_multi_conn = true; + } + + /* The result of this is not returned to callers here (or at any + * time during the handshake). However it makes sense to do it once + * per connection and store the result in the handle anyway. This + * protocol_compute_eflags function is a bit misnamed XXX. + */ + fl = backend->can_extents (backend, conn); + if (fl == -1) + return -1; + if (fl) + conn->can_extents = true; + + if (conn->structured_replies) + eflags |= NBD_FLAG_SEND_DF; + + *flags = eflags; + return 0; +} + +int +protocol_handshake (struct connection *conn) +{ + int r; + + lock_request (conn); + if (!newstyle) + r = protocol_handshake_oldstyle (conn); + else + r = protocol_handshake_newstyle (conn); + unlock_request (conn); + + return r; +} diff --git a/server/protocol.c b/server/protocol.c new file mode 100644 index 0000000..6fd3b62 --- /dev/null +++ b/server/protocol.c @@ -0,0 +1,744 @@ +/* nbdkit + * Copyright (C) 2013-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <stdbool.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> +#include <errno.h> +#include <assert.h> + +#include "internal.h" +#include "byte-swapping.h" +#include "minmax.h" +#include "protocol.h" + +/* Maximum read or write request that we will handle. */ +#define MAX_REQUEST_SIZE (64 * 1024 * 1024) + +static bool +valid_range (struct connection *conn, uint64_t offset, uint32_t count) +{ + uint64_t exportsize = conn->exportsize; + + return count > 0 && offset <= exportsize && offset + count <= exportsize; +} + +static bool +validate_request (struct connection *conn, + uint16_t cmd, uint16_t flags, uint64_t offset, uint32_t count, + uint32_t *error) +{ + /* Readonly connection? */ + if (conn->readonly && + (cmd == NBD_CMD_WRITE || cmd == NBD_CMD_TRIM || + cmd == NBD_CMD_WRITE_ZEROES)) { + nbdkit_error ("invalid request: %s: write request on readonly connection", + name_of_nbd_cmd (cmd)); + *error = EROFS; + return false; + } + + /* Validate cmd, offset, count. */ + switch (cmd) { + case NBD_CMD_READ: + case NBD_CMD_WRITE: + case NBD_CMD_TRIM: + case NBD_CMD_WRITE_ZEROES: + case NBD_CMD_BLOCK_STATUS: + if (!valid_range (conn, offset, count)) { + /* XXX Allow writes to extend the disk? */ + nbdkit_error ("invalid request: %s: offset and count are out of range: " + "offset=%" PRIu64 " count=%" PRIu32, + name_of_nbd_cmd (cmd), offset, count); + *error = (cmd == NBD_CMD_WRITE || + cmd == NBD_CMD_WRITE_ZEROES) ? ENOSPC : EINVAL; + return false; + } + break; + + case NBD_CMD_FLUSH: + if (offset != 0 || count != 0) { + nbdkit_error ("invalid request: %s: expecting offset and count = 0", + name_of_nbd_cmd (cmd)); + *error = EINVAL; + return false; + } + break; + + default: + nbdkit_error ("invalid request: unknown command (%" PRIu32 ") ignored", + cmd); + *error = EINVAL; + return false; + } + + /* Validate flags */ + if (flags & ~(NBD_CMD_FLAG_FUA | NBD_CMD_FLAG_NO_HOLE | + NBD_CMD_FLAG_DF | NBD_CMD_FLAG_REQ_ONE)) { + nbdkit_error ("invalid request: unknown flag (0x%x)", flags); + *error = EINVAL; + return false; + } + if ((flags & NBD_CMD_FLAG_NO_HOLE) && + cmd != NBD_CMD_WRITE_ZEROES) { + nbdkit_error ("invalid request: NO_HOLE flag needs WRITE_ZEROES request"); + *error = EINVAL; + return false; + } + if (flags & NBD_CMD_FLAG_DF) { + if (cmd != NBD_CMD_READ) { + nbdkit_error ("invalid request: DF flag needs READ request"); + *error = EINVAL; + return false; + } + if (!conn->structured_replies) { + nbdkit_error ("invalid request: " + "%s: structured replies was not negotiated", + name_of_nbd_cmd (cmd)); + *error = EINVAL; + return false; + } + } + if ((flags & NBD_CMD_FLAG_REQ_ONE) && + cmd != NBD_CMD_BLOCK_STATUS) { + nbdkit_error ("invalid request: REQ_ONE flag needs BLOCK_STATUS request"); + *error = EINVAL; + return false; + } + if (!conn->can_fua && (flags & NBD_CMD_FLAG_FUA)) { + nbdkit_error ("invalid request: FUA flag not supported"); + *error = EINVAL; + return false; + } + + /* Refuse over-large read and write requests. */ + if ((cmd == NBD_CMD_WRITE || cmd == NBD_CMD_READ) && + count > MAX_REQUEST_SIZE) { + nbdkit_error ("invalid request: %s: data request is too large (%" PRIu32 + " > %d)", + name_of_nbd_cmd (cmd), count, MAX_REQUEST_SIZE); + *error = ENOMEM; + return false; + } + + /* Flush allowed? */ + if (!conn->can_flush && cmd == NBD_CMD_FLUSH) { + nbdkit_error ("invalid request: %s: flush operation not supported", + name_of_nbd_cmd (cmd)); + *error = EINVAL; + return false; + } + + /* Trim allowed? */ + if (!conn->can_trim && cmd == NBD_CMD_TRIM) { + nbdkit_error ("invalid request: %s: trim operation not supported", + name_of_nbd_cmd (cmd)); + *error = EINVAL; + return false; + } + + /* Zero allowed? */ + if (!conn->can_zero && cmd == NBD_CMD_WRITE_ZEROES) { + nbdkit_error ("invalid request: %s: write zeroes operation not supported", + name_of_nbd_cmd (cmd)); + *error = EINVAL; + return false; + } + + /* Block status allowed? */ + if (cmd == NBD_CMD_BLOCK_STATUS) { + if (!conn->structured_replies) { + nbdkit_error ("invalid request: " + "%s: structured replies was not negotiated", + name_of_nbd_cmd (cmd)); + *error = EINVAL; + return false; + } + if (!conn->meta_context_base_allocation) { + nbdkit_error ("invalid request: " + "%s: base:allocation was not negotiated", + name_of_nbd_cmd (cmd)); + *error = EINVAL; + return false; + } + } + + return true; /* Command validates. */ +} + +/* This is called with the request lock held to actually execute the + * request (by calling the plugin). Note that the request fields have + * been validated already in 'validate_request' so we don't have to + * check them again. + * + * 'buf' is either the data to be written or the data to be returned, + * and points to a buffer of size 'count' bytes. + * + * 'extents' is an empty extents list used for block status requests + * only. + * + * In all cases, the return value is the system errno value that will + * later be converted to the nbd error to send back to the client (0 + * for success). + */ +static uint32_t +handle_request (struct connection *conn, + uint16_t cmd, uint16_t flags, uint64_t offset, uint32_t count, + void *buf, struct nbdkit_extents *extents) +{ + uint32_t f = 0; + bool fua = conn->can_fua && (flags & NBD_CMD_FLAG_FUA); + int err = 0; + + /* Clear the error, so that we know if the plugin calls + * nbdkit_set_error() or relied on errno. */ + threadlocal_set_error (0); + + switch (cmd) { + case NBD_CMD_READ: + if (backend->pread (backend, conn, buf, count, offset, 0, &err) == -1) + return err; + break; + + case NBD_CMD_WRITE: + if (fua) + f |= NBDKIT_FLAG_FUA; + if (backend->pwrite (backend, conn, buf, count, offset, f, &err) == -1) + return err; + break; + + case NBD_CMD_FLUSH: + if (backend->flush (backend, conn, 0, &err) == -1) + return err; + break; + + case NBD_CMD_TRIM: + if (fua) + f |= NBDKIT_FLAG_FUA; + if (backend->trim (backend, conn, count, offset, f, &err) == -1) + return err; + break; + + case NBD_CMD_WRITE_ZEROES: + if (!(flags & NBD_CMD_FLAG_NO_HOLE)) + f |= NBDKIT_FLAG_MAY_TRIM; + if (fua) + f |= NBDKIT_FLAG_FUA; + if (backend->zero (backend, conn, count, offset, f, &err) == -1) + return err; + break; + + case NBD_CMD_BLOCK_STATUS: + /* The other backend methods don't check can_*. That is because + * those methods are implicitly suppressed by returning eflags to + * the client. However there is no eflag for extents so we must + * check it here. + */ + if (conn->can_extents) { + if (flags & NBD_CMD_FLAG_REQ_ONE) + f |= NBDKIT_FLAG_REQ_ONE; + if (backend->extents (backend, conn, count, offset, f, + extents, &err) == -1) + return err; + } + else { + int r; + + /* By default it is safe assume that everything in the range is + * allocated. + */ + errno = 0; + r = nbdkit_add_extent (extents, offset, count, 0 /* allocated data */); + if (r == -1) + return errno ? errno : EINVAL; + return 0; + } + break; + + default: + abort (); + } + + return 0; +} + +static int +skip_over_write_buffer (int sock, size_t count) +{ + char buf[BUFSIZ]; + ssize_t r; + + if (count > MAX_REQUEST_SIZE * 2) { + nbdkit_error ("write request too large to skip"); + return -1; + } + + while (count > 0) { + r = read (sock, buf, count > BUFSIZ ? BUFSIZ : count); + if (r == -1) { + nbdkit_error ("skipping write buffer: %m"); + return -1; + } + if (r == 0) { + nbdkit_error ("unexpected early EOF"); + errno = EBADMSG; + return -1; + } + count -= r; + } + return 0; +} + +/* Convert a system errno to an NBD_E* error code. */ +static int +nbd_errno (int error) +{ + switch (error) { + case 0: + return NBD_SUCCESS; + case EROFS: + case EPERM: + return NBD_EPERM; + case EIO: + return NBD_EIO; + case ENOMEM: + return NBD_ENOMEM; +#ifdef EDQUOT + case EDQUOT: +#endif + case EFBIG: + case ENOSPC: + return NBD_ENOSPC; +#ifdef ESHUTDOWN + case ESHUTDOWN: + return NBD_ESHUTDOWN; +#endif + case EINVAL: + default: + return NBD_EINVAL; + } +} + +static int +send_simple_reply (struct connection *conn, + uint64_t handle, uint16_t cmd, + const char *buf, uint32_t count, + uint32_t error) +{ + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&conn->write_lock); + struct simple_reply reply; + int r; + + reply.magic = htobe32 (NBD_SIMPLE_REPLY_MAGIC); + reply.handle = handle; + reply.error = htobe32 (nbd_errno (error)); + + r = conn->send (conn, &reply, sizeof reply); + if (r == -1) { + nbdkit_error ("write reply: %s: %m", name_of_nbd_cmd (cmd)); + return connection_set_status (conn, -1); + } + + /* Send the read data buffer. */ + if (cmd == NBD_CMD_READ && !error) { + r = conn->send (conn, buf, count); + if (r == -1) { + nbdkit_error ("write data: %s: %m", name_of_nbd_cmd (cmd)); + return connection_set_status (conn, -1); + } + } + + return 1; /* command processed ok */ +} + +static int +send_structured_reply_read (struct connection *conn, + uint64_t handle, uint16_t cmd, + const char *buf, uint32_t count, uint64_t offset) +{ + /* Once we are really using structured replies and sending data back + * in chunks, we'll be able to grab the write lock for each chunk, + * allowing other threads to interleave replies. As we're not doing + * that yet we acquire the lock for the whole function. + */ + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&conn->write_lock); + struct structured_reply reply; + struct structured_reply_offset_data offset_data; + int r; + + assert (cmd == NBD_CMD_READ); + + reply.magic = htobe32 (NBD_STRUCTURED_REPLY_MAGIC); + reply.handle = handle; + reply.flags = htobe16 (NBD_REPLY_FLAG_DONE); + reply.type = htobe16 (NBD_REPLY_TYPE_OFFSET_DATA); + reply.length = htobe32 (count + sizeof offset_data); + + r = conn->send (conn, &reply, sizeof reply); + if (r == -1) { + nbdkit_error ("write reply: %s: %m", name_of_nbd_cmd (cmd)); + return connection_set_status (conn, -1); + } + + /* Send the offset + read data buffer. */ + offset_data.offset = htobe64 (offset); + r = conn->send (conn, &offset_data, sizeof offset_data); + if (r == -1) { + nbdkit_error ("write data: %s: %m", name_of_nbd_cmd (cmd)); + return connection_set_status (conn, -1); + } + + r = conn->send (conn, buf, count); + if (r == -1) { + nbdkit_error ("write data: %s: %m", name_of_nbd_cmd (cmd)); + return connection_set_status (conn, -1); + } + + return 1; /* command processed ok */ +} + +/* Convert a list of extents into NBD_REPLY_TYPE_BLOCK_STATUS blocks. + * The rules here are very complicated. Read the spec carefully! + */ +static struct block_descriptor * +extents_to_block_descriptors (struct nbdkit_extents *extents, + uint16_t flags, + uint32_t count, uint64_t offset, + size_t *nr_blocks) +{ + const bool req_one = flags & NBD_CMD_FLAG_REQ_ONE; + const size_t nr_extents = nbdkit_extents_count (extents); + size_t i; + struct block_descriptor *blocks; + + /* This is checked in server/plugins.c. */ + assert (nr_extents >= 1); + + /* We may send fewer than nr_extents blocks, but never more. */ + blocks = calloc (req_one ? 1 : nr_extents, sizeof (struct block_descriptor)); + if (blocks == NULL) { + nbdkit_error ("calloc: %m"); + return NULL; + } + + if (req_one) { + const struct nbdkit_extent e = nbdkit_get_extent (extents, 0); + + /* Checked as a side effect of how the extent list is created. */ + assert (e.length > 0); + + *nr_blocks = 1; + + /* Must not exceed count of the original request. */ + blocks[0].length = MIN (e.length, (uint64_t) count); + blocks[0].status_flags = e.type & 3; + } + else { + uint64_t pos = offset; + + for (i = 0; i < nr_extents; ++i) { + const struct nbdkit_extent e = nbdkit_get_extent (extents, i); + uint64_t length; + + if (i == 0) + assert (e.offset == offset); + + /* Must not exceed UINT32_MAX. */ + length = MIN (e.length, UINT32_MAX); + blocks[i].status_flags = e.type & 3; + + pos += length; + if (pos > offset + count) /* this must be the last block */ + break; + + /* If we reach here then we must have consumed this whole + * extent. This is currently true because the server only sends + * 32 bit requests, but if we move to 64 bit requests we will + * need to revisit this code so it can split extents into + * multiple blocks. XXX + */ + assert (e.length <= length); + } + + *nr_blocks = i; + } + +#if 0 + for (i = 0; i < *nr_blocks; ++i) + nbdkit_debug ("block status: sending block %" PRIu32 " type %" PRIu32, + blocks[i].length, blocks[i].status_flags); +#endif + + /* Convert to big endian for the protocol. */ + for (i = 0; i < *nr_blocks; ++i) { + blocks[i].length = htobe32 (blocks[i].length); + blocks[i].status_flags = htobe32 (blocks[i].status_flags); + } + + return blocks; +} + +static int +send_structured_reply_block_status (struct connection *conn, + uint64_t handle, + uint16_t cmd, uint16_t flags, + uint32_t count, uint64_t offset, + struct nbdkit_extents *extents) +{ + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&conn->write_lock); + struct structured_reply reply; + CLEANUP_FREE struct block_descriptor *blocks = NULL; + size_t nr_blocks; + uint32_t context_id; + size_t i; + int r; + + assert (conn->meta_context_base_allocation); + assert (cmd == NBD_CMD_BLOCK_STATUS); + + blocks = extents_to_block_descriptors (extents, flags, count, offset, + &nr_blocks); + if (blocks == NULL) + return connection_set_status (conn, -1); + + reply.magic = htobe32 (NBD_STRUCTURED_REPLY_MAGIC); + reply.handle = handle; + reply.flags = htobe16 (NBD_REPLY_FLAG_DONE); + reply.type = htobe16 (NBD_REPLY_TYPE_BLOCK_STATUS); + reply.length = htobe32 (sizeof context_id + + nr_blocks * sizeof (struct block_descriptor)); + + r = conn->send (conn, &reply, sizeof reply); + if (r == -1) { + nbdkit_error ("write reply: %s: %m", name_of_nbd_cmd (cmd)); + return connection_set_status (conn, -1); + } + + /* Send the base:allocation context ID. */ + context_id = htobe32 (base_allocation_id); + r = conn->send (conn, &context_id, sizeof context_id); + if (r == -1) { + nbdkit_error ("write reply: %s: %m", name_of_nbd_cmd (cmd)); + return connection_set_status (conn, -1); + } + + /* Send each block descriptor. */ + for (i = 0; i < nr_blocks; ++i) { + r = conn->send (conn, &blocks[i], sizeof blocks[i]); + if (r == -1) { + nbdkit_error ("write reply: %s: %m", name_of_nbd_cmd (cmd)); + return connection_set_status (conn, -1); + } + } + + return 1; /* command processed ok */ +} + +static int +send_structured_reply_error (struct connection *conn, + uint64_t handle, uint16_t cmd, uint32_t error) +{ + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&conn->write_lock); + struct structured_reply reply; + struct structured_reply_error error_data; + int r; + + reply.magic = htobe32 (NBD_STRUCTURED_REPLY_MAGIC); + reply.handle = handle; + reply.flags = htobe16 (NBD_REPLY_FLAG_DONE); + reply.type = htobe16 (NBD_REPLY_TYPE_ERROR); + reply.length = htobe32 (0 /* no human readable error */ + sizeof error_data); + + r = conn->send (conn, &reply, sizeof reply); + if (r == -1) { + nbdkit_error ("write error reply: %m"); + return connection_set_status (conn, -1); + } + + /* Send the error. */ + error_data.error = htobe32 (nbd_errno (error)); + error_data.len = htobe16 (0); + r = conn->send (conn, &error_data, sizeof error_data); + if (r == -1) { + nbdkit_error ("write data: %s: %m", name_of_nbd_cmd (cmd)); + return connection_set_status (conn, -1); + } + /* No human readable error message at the moment. */ + + return 1; /* command processed ok */ +} + +int +protocol_recv_request_send_reply (struct connection *conn) +{ + int r; + struct request request; + uint16_t cmd, flags; + uint32_t magic, count, error = 0; + uint64_t offset; + char *buf; + CLEANUP_EXTENTS_FREE struct nbdkit_extents *extents = NULL; + + /* Read the request packet. */ + { + ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&conn->read_lock); + r = connection_get_status (conn); + if (r <= 0) + return r; + r = conn->recv (conn, &request, sizeof request); + if (r == -1) { + nbdkit_error ("read request: %m"); + return connection_set_status (conn, -1); + } + if (r == 0) { + debug ("client closed input socket, closing connection"); + return connection_set_status (conn, 0); /* disconnect */ + } + + magic = be32toh (request.magic); + if (magic != NBD_REQUEST_MAGIC) { + nbdkit_error ("invalid request: 'magic' field is incorrect (0x%x)", + magic); + return connection_set_status (conn, -1); + } + + flags = be16toh (request.flags); + cmd = be16toh (request.type); + + offset = be64toh (request.offset); + count = be32toh (request.count); + + if (cmd == NBD_CMD_DISC) { + debug ("client sent %s, closing connection", name_of_nbd_cmd (cmd)); + return connection_set_status (conn, 0); /* disconnect */ + } + + /* Validate the request. */ + if (!validate_request (conn, cmd, flags, offset, count, &error)) { + if (cmd == NBD_CMD_WRITE && + skip_over_write_buffer (conn->sockin, count) < 0) + return connection_set_status (conn, -1); + goto send_reply; + } + + /* Get the data buffer used for either read or write requests. + * This is a common per-thread data buffer, it must not be freed. + */ + if (cmd == NBD_CMD_READ || cmd == NBD_CMD_WRITE) { + buf = threadlocal_buffer ((size_t) count); + if (buf == NULL) { + error = ENOMEM; + if (cmd == NBD_CMD_WRITE && + skip_over_write_buffer (conn->sockin, count) < 0) + return connection_set_status (conn, -1); + goto send_reply; + } + } + + /* Allocate the extents list for block status only. */ + if (cmd == NBD_CMD_BLOCK_STATUS) { + extents = nbdkit_extents_new (offset, conn->exportsize); + if (extents == NULL) { + error = ENOMEM; + goto send_reply; + } + } + + /* Receive the write data buffer. */ + if (cmd == NBD_CMD_WRITE) { + r = conn->recv (conn, buf, count); + if (r == 0) { + errno = EBADMSG; + r = -1; + } + if (r == -1) { + nbdkit_error ("read data: %s: %m", name_of_nbd_cmd (cmd)); + return connection_set_status (conn, -1); + } + } + } + + /* Perform the request. Only this part happens inside the request lock. */ + if (quit || !connection_get_status (conn)) { + error = ESHUTDOWN; + } + else { + lock_request (conn); + error = handle_request (conn, cmd, flags, offset, count, buf, extents); + assert ((int) error >= 0); + unlock_request (conn); + } + + /* Send the reply packet. */ + send_reply: + if (connection_get_status (conn) < 0) + return -1; + + if (error != 0) { + /* Since we're about to send only the limited NBD_E* errno to the + * client, don't lose the information about what really happened + * on the server side. Make sure there is a way for the operator + * to retrieve the real error. + */ + debug ("sending error reply: %s", strerror (error)); + } + + /* Currently we prefer to send simple replies for everything except + * where we have to (ie. NBD_CMD_READ and NBD_CMD_BLOCK_STATUS when + * structured_replies have been negotiated). However this prevents + * us from sending human-readable error messages to the client, so + * we should reconsider this in future. + */ + if (conn->structured_replies && + (cmd == NBD_CMD_READ || cmd == NBD_CMD_BLOCK_STATUS)) { + if (!error) { + if (cmd == NBD_CMD_READ) + return send_structured_reply_read (conn, request.handle, cmd, + buf, count, offset); + else /* NBD_CMD_BLOCK_STATUS */ + return send_structured_reply_block_status (conn, request.handle, + cmd, flags, + count, offset, + extents); + } + else + return send_structured_reply_error (conn, request.handle, cmd, error); + } + else + return send_simple_reply (conn, request.handle, cmd, buf, count, error); +} diff --git a/server/quit.c b/server/quit.c new file mode 100644 index 0000000..c2ac11e --- /dev/null +++ b/server/quit.c @@ -0,0 +1,81 @@ +/* nbdkit + * Copyright (C) 2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdarg.h> +#include <string.h> +#include <unistd.h> + +#include "internal.h" + +/* Detection of request to exit via signal. Most places in the code + * can just poll quit at opportune moments, while sockets.c needs a + * pipe-to-self through quit_fd in order to break a poll loop without + * a race. + */ +volatile int quit; +int quit_fd; +static int write_quit_fd; + +void +set_up_quit_pipe (void) +{ + int fds[2]; + + if (pipe (fds) < 0) { + perror ("pipe"); + exit (EXIT_FAILURE); + } + quit_fd = fds[0]; + write_quit_fd = fds[1]; +} + +void +handle_quit (int sig) +{ + set_quit (); +} + +void +set_quit (void) +{ + char c = 0; + + quit = 1; +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wunused-result" + write (write_quit_fd, &c, 1); +#pragma GCC diagnostic pop +} diff --git a/server/signals.c b/server/signals.c new file mode 100644 index 0000000..d7dc17d --- /dev/null +++ b/server/signals.c @@ -0,0 +1,61 @@ +/* nbdkit + * Copyright (C) 2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdarg.h> +#include <string.h> +#include <signal.h> + +#include "internal.h" + +/* Set up signal handlers. */ +void +set_up_signals (void) +{ + struct sigaction sa; + + memset (&sa, 0, sizeof sa); + sa.sa_flags = SA_RESTART; + sa.sa_handler = handle_quit; + sigaction (SIGINT, &sa, NULL); + sigaction (SIGQUIT, &sa, NULL); + sigaction (SIGTERM, &sa, NULL); + sigaction (SIGHUP, &sa, NULL); + + memset (&sa, 0, sizeof sa); + sa.sa_flags = SA_RESTART; + sa.sa_handler = SIG_IGN; + sigaction (SIGPIPE, &sa, NULL); +} diff --git a/server/socket-activation.c b/server/socket-activation.c new file mode 100644 index 0000000..b9db67c --- /dev/null +++ b/server/socket-activation.c @@ -0,0 +1,102 @@ +/* nbdkit + * Copyright (C) 2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdarg.h> +#include <string.h> +#include <unistd.h> +#include <fcntl.h> +#include <errno.h> + +#include "internal.h" + +/* Handle socket activation. This is controlled through special + * environment variables inherited by nbdkit. Returns 0 if no socket + * activation. Otherwise returns the number of FDs. See also + * virGetListenFDs in libvirt.org:src/util/virutil.c + */ +unsigned int +get_socket_activation (void) +{ + const char *s; + unsigned int pid; + unsigned int nr_fds; + unsigned int i; + int fd; + + s = getenv ("LISTEN_PID"); + if (s == NULL) + return 0; + if (sscanf (s, "%u", &pid) != 1) { + fprintf (stderr, "%s: malformed %s environment variable (ignored)\n", + program_name, "LISTEN_PID"); + return 0; + } + if (pid != getpid ()) { + fprintf (stderr, "%s: %s was not for us (ignored)\n", + program_name, "LISTEN_PID"); + return 0; + } + + s = getenv ("LISTEN_FDS"); + if (s == NULL) + return 0; + if (sscanf (s, "%u", &nr_fds) != 1) { + fprintf (stderr, "%s: malformed %s environment variable (ignored)\n", + program_name, "LISTEN_FDS"); + return 0; + } + + /* So these are not passed to any child processes we might start. */ + unsetenv ("LISTEN_FDS"); + unsetenv ("LISTEN_PID"); + + /* So the file descriptors don't leak into child processes. */ + for (i = 0; i < nr_fds; ++i) { + fd = FIRST_SOCKET_ACTIVATION_FD + i; + if (fcntl (fd, F_SETFD, FD_CLOEXEC) == -1) { + /* If we cannot set FD_CLOEXEC then it probably means the file + * descriptor is invalid, so socket activation has gone wrong + * and we should exit. + */ + fprintf (stderr, "%s: socket activation: " + "invalid file descriptor fd = %d: %s\n", + program_name, fd, strerror(errno)); + exit (EXIT_FAILURE); + } + } + + return nr_fds; +} diff --git a/server/sockets.c b/server/sockets.c new file mode 100644 index 0000000..2c71970 --- /dev/null +++ b/server/sockets.c @@ -0,0 +1,367 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdbool.h> +#include <string.h> +#include <unistd.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <sys/un.h> +#include <netdb.h> +#include <poll.h> +#include <errno.h> +#include <assert.h> + +#ifdef HAVE_LIBSELINUX +#include <selinux/selinux.h> +#endif + +#include <pthread.h> + +#include "internal.h" + +static void +set_selinux_label (void) +{ + if (selinux_label) { +#ifdef HAVE_LIBSELINUX + if (setsockcreatecon_raw (selinux_label) == -1) { + perror ("selinux-label: setsockcreatecon_raw"); + exit (EXIT_FAILURE); + } +#else + fprintf (stderr, + "%s: --selinux-label option used, but " + "this binary was compiled without SELinux support\n", + program_name); + exit (EXIT_FAILURE); +#endif + } +} + +static void +clear_selinux_label (void) +{ +#ifdef HAVE_LIBSELINUX + if (selinux_label) { + if (setsockcreatecon_raw (NULL) == -1) { + perror ("selinux-label: setsockcreatecon_raw(NULL)"); + exit (EXIT_FAILURE); + } + } +#endif +} + +int * +bind_unix_socket (size_t *nr_socks) +{ + size_t len; + int sock; + struct sockaddr_un addr; + int *ret; + + assert (unixsocket); + assert (unixsocket[0] == '/'); + + len = strlen (unixsocket); + if (len >= UNIX_PATH_MAX) { + fprintf (stderr, "%s: -U: path too long: length %zu > max %d bytes\n", + program_name, len, UNIX_PATH_MAX-1); + exit (EXIT_FAILURE); + } + + set_selinux_label (); + + sock = socket (AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0); + if (sock == -1) { + perror ("bind_unix_socket: socket"); + exit (EXIT_FAILURE); + } + + addr.sun_family = AF_UNIX; + memcpy (addr.sun_path, unixsocket, len+1 /* trailing \0 */); + + if (bind (sock, (struct sockaddr *) &addr, sizeof addr) == -1) { + perror (unixsocket); + exit (EXIT_FAILURE); + } + + if (listen (sock, SOMAXCONN) == -1) { + perror ("listen"); + exit (EXIT_FAILURE); + } + + clear_selinux_label (); + + ret = malloc (sizeof (int)); + if (!ret) { + perror ("malloc"); + exit (EXIT_FAILURE); + } + ret[0] = sock; + *nr_socks = 1; + + debug ("bound to unix socket %s", unixsocket); + + return ret; +} + +int * +bind_tcpip_socket (size_t *nr_socks) +{ + struct addrinfo *ai = NULL; + struct addrinfo hints; + struct addrinfo *a; + int err, opt; + int *socks = NULL; + bool addr_in_use = false; + + if (port == NULL) + port = "10809"; + + memset (&hints, 0, sizeof hints); + hints.ai_flags = AI_PASSIVE | AI_ADDRCONFIG; + hints.ai_socktype = SOCK_STREAM; + + err = getaddrinfo (ipaddr, port, &hints, &ai); + if (err != 0) { + fprintf (stderr, "%s: getaddrinfo: %s: %s: %s", + program_name, + ipaddr ? ipaddr : "<any>", + port, + gai_strerror (err)); + exit (EXIT_FAILURE); + } + + *nr_socks = 0; + + for (a = ai; a != NULL; a = a->ai_next) { + int sock; + + set_selinux_label (); + + sock = socket (a->ai_family, a->ai_socktype, a->ai_protocol); + if (sock == -1) { + perror ("bind_tcpip_socket: socket"); + exit (EXIT_FAILURE); + } + + opt = 1; + if (setsockopt (sock, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof opt) == -1) + perror ("setsockopt: SO_REUSEADDR"); + +#ifdef IPV6_V6ONLY + if (a->ai_family == PF_INET6) { + if (setsockopt (sock, IPPROTO_IPV6, IPV6_V6ONLY, &opt, sizeof opt) == -1) + perror ("setsockopt: IPv6 only"); + } +#endif + + if (bind (sock, a->ai_addr, a->ai_addrlen) == -1) { + if (errno == EADDRINUSE) { + addr_in_use = true; + close (sock); + continue; + } + perror ("bind"); + exit (EXIT_FAILURE); + } + + if (listen (sock, SOMAXCONN) == -1) { + perror ("listen"); + exit (EXIT_FAILURE); + } + + clear_selinux_label (); + + (*nr_socks)++; + socks = realloc (socks, sizeof (int) * (*nr_socks)); + if (!socks) { + perror ("realloc"); + exit (EXIT_FAILURE); + } + socks[*nr_socks - 1] = sock; + } + + freeaddrinfo (ai); + + if (*nr_socks == 0 && addr_in_use) { + fprintf (stderr, "%s: unable to bind to any sockets: %s\n", + program_name, strerror (EADDRINUSE)); + exit (EXIT_FAILURE); + } + + debug ("bound to IP address %s:%s (%zu socket(s))", + ipaddr ? ipaddr : "<any>", port, *nr_socks); + + return socks; +} + +void +free_listening_sockets (int *socks, size_t nr_socks) +{ + size_t i; + + for (i = 0; i < nr_socks; ++i) + close (socks[i]); + free (socks); +} + +struct thread_data { + int sock; + size_t instance_num; + struct sockaddr addr; + socklen_t addrlen; +}; + +static void * +start_thread (void *datav) +{ + struct thread_data *data = datav; + + debug ("accepted connection"); + + /* Set thread-local data. */ + threadlocal_new_server_thread (); + threadlocal_set_instance_num (data->instance_num); + threadlocal_set_sockaddr (&data->addr, data->addrlen); + + handle_single_connection (data->sock, data->sock); + + free (data); + return NULL; +} + +static void +accept_connection (int listen_sock) +{ + int err; + pthread_attr_t attrs; + pthread_t thread; + struct thread_data *thread_data; + static size_t instance_num = 1; + + thread_data = malloc (sizeof *thread_data); + if (!thread_data) { + perror ("malloc"); + return; + } + + thread_data->instance_num = instance_num++; + thread_data->addrlen = sizeof thread_data->addr; + again: + thread_data->sock = accept (listen_sock, + &thread_data->addr, &thread_data->addrlen); + if (thread_data->sock == -1) { + if (errno == EINTR || errno == EAGAIN) + goto again; + perror ("accept"); + free (thread_data); + return; + } + + /* Start a thread to handle this connection. Note we always do this + * even for non-threaded plugins. There are mutexes in plugins.c + * which ensure that non-threaded plugins are handled correctly. + */ + pthread_attr_init (&attrs); + pthread_attr_setdetachstate (&attrs, PTHREAD_CREATE_DETACHED); + err = pthread_create (&thread, &attrs, start_thread, thread_data); + pthread_attr_destroy (&attrs); + if (err != 0) { + fprintf (stderr, "%s: pthread_create: %s\n", program_name, strerror (err)); + close (thread_data->sock); + free (thread_data); + return; + } + + /* If the thread starts successfully, then it is responsible for + * closing the socket and freeing thread_data. + */ +} + +/* Check the list of sockets plus quit_fd until a POLLIN event occurs + * on any of them. + * + * If POLLIN occurs on quit_fd do nothing except returning early + * (don't call accept_connection in this case). + * + * If POLLIN occurs on one of the sockets, call + * accept_connection (socks[i]) on each of them. + */ +static void +check_sockets_and_quit_fd (int *socks, size_t nr_socks) +{ + struct pollfd fds[nr_socks + 1]; + size_t i; + int r; + + for (i = 0; i < nr_socks; ++i) { + fds[i].fd = socks[i]; + fds[i].events = POLLIN; + fds[i].revents = 0; + } + fds[nr_socks].fd = quit_fd; + fds[nr_socks].events = POLLIN; + fds[nr_socks].revents = 0; + + r = poll (fds, nr_socks + 1, -1); + if (r == -1) { + if (errno == EINTR || errno == EAGAIN) + return; + perror ("poll"); + exit (EXIT_FAILURE); + } + + /* We don't even have to read quit_fd - just knowing that it has + * data means the signal handler ran, so we are ready to quit the + * loop. + */ + if (fds[nr_socks].revents & POLLIN) + return; + + for (i = 0; i < nr_socks; ++i) { + if (fds[i].revents & POLLIN) + accept_connection (socks[i]); + } +} + +void +accept_incoming_connections (int *socks, size_t nr_socks) +{ + while (!quit) + check_sockets_and_quit_fd (socks, nr_socks); +} diff --git a/server/synopsis.c b/server/synopsis.c new file mode 100644 index 0000000..34047f4 --- /dev/null +++ b/server/synopsis.c @@ -0,0 +1,22 @@ +"nbdkit [-D|--debug PLUGIN|FILTER.FLAG=N]\n" +" [-e|--exportname EXPORTNAME] [--exit-with-parent]\n" +" [--filter FILTER ...] [-f|--foreground]\n" +" [-g|--group GROUP] [-i|--ipaddr IPADDR]\n" +" [--log stderr|syslog]\n" +" [-n|--newstyle] [-o|--oldstyle]\n" +" [-P|--pidfile PIDFILE]\n" +" [-p|--port PORT] [-r|--readonly]\n" +" [--run CMD] [-s|--single] [--selinux-label LABEL]\n" +" [-t|--threads THREADS]\n" +" [--tls off|on|require]\n" +" [--tls-certificates /path/to/certificates]\n" +" [--tls-psk /path/to/pskfile] [--tls-verify-peer]\n" +" [-U|--unix SOCKET] [-u|--user USER]\n" +" [-v|--verbose] [-V|--version]\n" +" PLUGIN [[KEY=]VALUE [KEY=VALUE [...]]]\n" +"\n" +"nbdkit --dump-config\n" +"\n" +"nbdkit PLUGIN --dump-plugin\n" +"\n" +"nbdkit --help\n" diff --git a/server/test-utils.c b/server/test-utils.c new file mode 100644 index 0000000..d6bdf46 --- /dev/null +++ b/server/test-utils.c @@ -0,0 +1,147 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <inttypes.h> +#include <stdbool.h> + +#include "internal.h" + +static bool error_flagged; + +/* Stub for linking against minimal source files, and for proving that + * an error message is issued when expected. */ +void +nbdkit_error (const char *fs, ...) +{ + error_flagged = true; +} + +static bool +test_nbdkit_parse_size (void) +{ + bool pass = true; + struct pair { + const char *str; + int64_t res; + } pairs[] = { + /* Bogus strings */ + { "", -1 }, + { "0x0", -1 }, + { "garbage", -1 }, + { "0garbage", -1 }, + { "8E", -1 }, + { "8192P", -1 }, + + /* Strings leading to overflow */ + { "9223372036854775808", -1 }, /* INT_MAX + 1 */ + { "18446744073709551614", -1 }, /* UINT64_MAX - 1 */ + { "18446744073709551615", -1 }, /* UINT64_MAX */ + { "18446744073709551616", -1 }, /* UINT64_MAX + 1 */ + { "999999999999999999999999", -1 }, + + /* Strings representing negative values */ + { "-1", -1 }, + { "-2", -1 }, + { "-9223372036854775809", -1 }, /* INT64_MIN - 1 */ + { "-9223372036854775808", -1 }, /* INT64_MIN */ + { "-9223372036854775807", -1 }, /* INT64_MIN + 1 */ + { "-18446744073709551616", -1 }, /* -UINT64_MAX - 1 */ + { "-18446744073709551615", -1 }, /* -UINT64_MAX */ + { "-18446744073709551614", -1 }, /* -UINT64_MAX + 1 */ + + /* Strings we may want to support in the future */ + { "M", -1 }, + { "1MB", -1 }, + { "1MiB", -1 }, + { "1.5M", -1 }, + + /* Valid strings */ + { "-0", 0 }, + { "0", 0 }, + { "+0", 0 }, + { " 08", 8 }, + { "1", 1 }, + { "+1", 1 }, + { "1234567890", 1234567890 }, + { "+1234567890", 1234567890 }, + { "9223372036854775807", INT64_MAX }, + { "1s", 512 }, + { "2S", 1024 }, + { "1b", 1 }, + { "1B", 1 }, + { "1k", 1024 }, + { "1K", 1024 }, + { "1m", 1024 * 1024 }, + { "1M", 1024 * 1024 }, + { "+1M", 1024 * 1024 }, + { "1g", 1024 * 1024 * 1024 }, + { "1G", 1024 * 1024 * 1024 }, + { "1t", 1024LL * 1024 * 1024 * 1024 }, + { "1T", 1024LL * 1024 * 1024 * 1024 }, + { "1p", 1024LL * 1024 * 1024 * 1024 * 1024 }, + { "1P", 1024LL * 1024 * 1024 * 1024 * 1024 }, + { "8191p", 1024LL * 1024 * 1024 * 1024 * 1024 * 8191 }, + { "1e", 1024LL * 1024 * 1024 * 1024 * 1024 * 1024 }, + { "1E", 1024LL * 1024 * 1024 * 1024 * 1024 * 1024 }, + }; + + for (size_t i = 0; i < sizeof pairs / sizeof pairs[0]; i++) { + int64_t r; + + error_flagged = false; + r = nbdkit_parse_size (pairs[i].str); + if (r != pairs[i].res) { + fprintf (stderr, + "Wrong parse for %s, got %" PRId64 ", expected %" PRId64 "\n", + pairs[i].str, r, pairs[i].res); + pass = false; + } + if ((r == -1) != error_flagged) { + fprintf (stderr, "Wrong error message handling for %s\n", pairs[i].str); + pass = false; + } + } + + return pass; +} + +int +main (int argc, char *argv[]) +{ + bool pass = true; + pass &= test_nbdkit_parse_size (); + /* XXX add tests for nbdkit_absolute_path, nbdkit_read_password */ + return pass ? 0 : 1; +} diff --git a/server/threadlocal.c b/server/threadlocal.c new file mode 100644 index 0000000..49ae1ac --- /dev/null +++ b/server/threadlocal.c @@ -0,0 +1,228 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <assert.h> +#include <errno.h> + +#include <pthread.h> + +#include "internal.h" + +/* Note that most thread-local storage data is informational, used for + * smart error and debug messages on the server side. However, error + * tracking can be used to influence which error is sent to the client + * in a reply. + * + * The main thread does not have any associated Thread Local Storage, + * *unless* it is serving a request (the '-s' option). + */ + +struct threadlocal { + char *name; /* Can be NULL. */ + size_t instance_num; /* Can be 0. */ + struct sockaddr *addr; + socklen_t addrlen; + int err; + void *buffer; + size_t buffer_size; +}; + +static pthread_key_t threadlocal_key; + +static void +free_threadlocal (void *threadlocalv) +{ + struct threadlocal *threadlocal = threadlocalv; + + free (threadlocal->name); + free (threadlocal->addr); + free (threadlocal->buffer); + free (threadlocal); +} + +void +threadlocal_init (void) +{ + int err; + + err = pthread_key_create (&threadlocal_key, free_threadlocal); + if (err != 0) { + fprintf (stderr, "%s: pthread_key_create: %s\n", + program_name, strerror (err)); + exit (EXIT_FAILURE); + } +} + +void +threadlocal_new_server_thread (void) +{ + struct threadlocal *threadlocal; + int err; + + threadlocal = calloc (1, sizeof *threadlocal); + if (threadlocal == NULL) { + perror ("malloc"); + exit (EXIT_FAILURE); + } + err = pthread_setspecific (threadlocal_key, threadlocal); + if (err) { + errno = err; + perror ("pthread_setspecific"); + exit (EXIT_FAILURE); + } +} + +void +threadlocal_set_name (const char *name) +{ + struct threadlocal *threadlocal = pthread_getspecific (threadlocal_key); + + /* Copy name, as the original may be residing in a module, but we + * want our thread name to persist even after unload. */ + if (threadlocal) { + free (threadlocal->name); + threadlocal->name = strdup (name); + /* Best effort; logging a NULL name is better than exiting. */ + if (threadlocal->name == NULL) + perror ("malloc"); + } +} + +void +threadlocal_set_instance_num (size_t instance_num) +{ + struct threadlocal *threadlocal = pthread_getspecific (threadlocal_key); + + if (threadlocal) + threadlocal->instance_num = instance_num; +} + +void +threadlocal_set_sockaddr (const struct sockaddr *addr, socklen_t addrlen) +{ + struct threadlocal *threadlocal = pthread_getspecific (threadlocal_key); + + if (threadlocal) { + free (threadlocal->addr); + threadlocal->addr = calloc (1, addrlen); + if (threadlocal->addr == NULL) { + perror ("calloc"); + exit (EXIT_FAILURE); + } + memcpy (threadlocal->addr, addr, addrlen); + } +} + +const char * +threadlocal_get_name (void) +{ + struct threadlocal *threadlocal = pthread_getspecific (threadlocal_key); + + if (!threadlocal) + return NULL; + + return threadlocal->name; +} + +size_t +threadlocal_get_instance_num (void) +{ + struct threadlocal *threadlocal = pthread_getspecific (threadlocal_key); + + if (!threadlocal) + return 0; + + return threadlocal->instance_num; +} + +void +threadlocal_set_error (int err) +{ + struct threadlocal *threadlocal = pthread_getspecific (threadlocal_key); + + if (threadlocal) + threadlocal->err = err; + else + errno = err; +} + +/* This preserves errno, for convenience. + */ +int +threadlocal_get_error (void) +{ + int err = errno; + struct threadlocal *threadlocal = pthread_getspecific (threadlocal_key); + + errno = err; + return threadlocal ? threadlocal->err : 0; +} + +/* Return the single pread/pwrite buffer for this thread. The buffer + * size is increased to ‘size’ bytes if required. + * + * The buffer starts out as zeroes but after use may contain data from + * previous requests. This is fine because: (a) Correctly written + * plugins should overwrite the whole buffer on each request so no + * leak should occur. (b) The aim of this buffer is to avoid leaking + * random heap data from the core server; previous request data from + * the plugin is not considered sensitive. + */ +extern void * +threadlocal_buffer (size_t size) +{ + struct threadlocal *threadlocal = pthread_getspecific (threadlocal_key); + + if (!threadlocal) + abort (); + + if (threadlocal->buffer_size < size) { + void *ptr; + + ptr = realloc (threadlocal->buffer, size); + if (ptr == NULL) { + nbdkit_error ("threadlocal_buffer: realloc: %m"); + return NULL; + } + memset (ptr, 0, size); + threadlocal->buffer = ptr; + threadlocal->buffer_size = size; + } + + return threadlocal->buffer; +} diff --git a/server/usergroup.c b/server/usergroup.c new file mode 100644 index 0000000..719c816 --- /dev/null +++ b/server/usergroup.c @@ -0,0 +1,140 @@ +/* nbdkit + * Copyright (C) 2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdarg.h> +#include <string.h> +#include <unistd.h> +#include <pwd.h> +#include <grp.h> +#include <errno.h> +#include <sys/types.h> + +#include "internal.h" + +static uid_t parseuser (const char *); +static gid_t parsegroup (const char *); + +/* Handle the -u and -g options. If user and group are non-NULL + * then this parses them to work out the UID/GID and changes + * user and group. + */ +void +change_user (void) +{ + if (group) { + gid_t gid = parsegroup (group); + + if (setgid (gid) == -1) { + perror ("setgid"); + exit (EXIT_FAILURE); + } + + /* Kill supplemental groups from parent process. */ + if (setgroups (1, &gid) == -1) { + perror ("setgroups"); + exit (EXIT_FAILURE); + } + + debug ("changed group to %s", group); + } + + if (user) { + uid_t uid = parseuser (user); + + if (setuid (uid) == -1) { + perror ("setuid"); + exit (EXIT_FAILURE); + } + + debug ("changed user to %s", user); + } +} + +static uid_t +parseuser (const char *id) +{ + struct passwd *pwd; + int saved_errno; + + errno = 0; + pwd = getpwnam (id); + + if (NULL == pwd) { + int val; + + saved_errno = errno; + + if (sscanf (id, "%d", &val) == 1) + return val; + + fprintf (stderr, "%s: -u option: %s is not a valid user name or uid", + program_name, id); + if (saved_errno != 0) + fprintf (stderr, " (getpwnam error: %s)", strerror (saved_errno)); + fprintf (stderr, "\n"); + exit (EXIT_FAILURE); + } + + return pwd->pw_uid; +} + +static gid_t +parsegroup (const char *id) +{ + struct group *grp; + int saved_errno; + + errno = 0; + grp = getgrnam (id); + + if (NULL == grp) { + int val; + + saved_errno = errno; + + if (sscanf (id, "%d", &val) == 1) + return val; + + fprintf (stderr, "%s: -g option: %s is not a valid group name or gid", + program_name, id); + if (saved_errno != 0) + fprintf (stderr, " (getgrnam error: %s)", strerror (saved_errno)); + fprintf (stderr, "\n"); + exit (EXIT_FAILURE); + } + + return grp->gr_gid; +} diff --git a/server/utils.c b/server/utils.c new file mode 100644 index 0000000..57910f0 --- /dev/null +++ b/server/utils.c @@ -0,0 +1,284 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdbool.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> +#include <limits.h> +#include <termios.h> +#include <errno.h> + +#include "get-current-dir-name.h" + +#include "internal.h" + +char * +nbdkit_absolute_path (const char *path) +{ + CLEANUP_FREE char *pwd = NULL; + char *ret; + + if (path == NULL || *path == '\0') { + nbdkit_error ("cannot convert null or empty path to an absolute path"); + return NULL; + } + + if (*path == '/') { + ret = strdup (path); + if (!ret) { + nbdkit_error ("strdup: %m"); + return NULL; + } + return ret; + } + + pwd = get_current_dir_name (); + if (pwd == NULL) { + nbdkit_error ("get_current_dir_name: %m"); + return NULL; + } + + if (asprintf (&ret, "%s/%s", pwd, path) == -1) { + nbdkit_error ("asprintf: %m"); + return NULL; + } + + return ret; +} + +/* Parse a string as a size with possible scaling suffix, or return -1 + * after reporting the error. + */ +int64_t +nbdkit_parse_size (const char *str) +{ + int64_t size; + char *end; + uint64_t scale = 1; + + /* Disk sizes cannot usefully exceed off_t (which is signed) and + * cannot be negative. */ + /* XXX Should we also parse things like '1.5M'? */ + /* XXX Should we allow hex? If so, hex cannot use scaling suffixes, + * because some of them are valid hex digits */ + errno = 0; + size = strtoimax (str, &end, 10); + if (str == end) { + nbdkit_error ("could not parse size string (%s)", str); + return -1; + } + if (size < 0) { + nbdkit_error ("size cannot be negative (%s)", str); + return -1; + } + if (errno) { + nbdkit_error ("size (%s) exceeds maximum value", str); + return -1; + } + + switch (*end) { + /* No suffix */ + case '\0': + end--; /* Safe, since we already filtered out empty string */ + break; + + /* Powers of 1024 */ + case 'e': case 'E': + scale *= 1024; + /* fallthru */ + case 'p': case 'P': + scale *= 1024; + /* fallthru */ + case 't': case 'T': + scale *= 1024; + /* fallthru */ + case 'g': case 'G': + scale *= 1024; + /* fallthru */ + case 'm': case 'M': + scale *= 1024; + /* fallthru */ + case 'k': case 'K': + scale *= 1024; + /* fallthru */ + case 'b': case 'B': + break; + + /* "sectors", ie. units of 512 bytes, even if that's not the real + * sector size */ + case 's': case 'S': + scale = 512; + break; + + default: + nbdkit_error ("could not parse size: unknown suffix '%s'", end); + return -1; + } + + /* XXX Maybe we should support 'MiB' as a synonym for 'M'; and 'MB' + * for powers of 1000, for similarity to GNU tools. But for now, + * anything beyond 'M' is dropped. */ + if (end[1]) { + nbdkit_error ("could not parse size: unknown suffix '%s'", end); + return -1; + } + + if (INT64_MAX / scale < size) { + nbdkit_error ("overflow computing size (%s)", str); + return -1; + } + + return size * scale; +} + +/* Parse a string as a boolean, or return -1 after reporting the error. + */ +int +nbdkit_parse_bool (const char *str) +{ + if (!strcmp (str, "1") || + !strcasecmp (str, "true") || + !strcasecmp (str, "t") || + !strcasecmp (str, "yes") || + !strcasecmp (str, "y") || + !strcasecmp (str, "on")) + return 1; + + if (!strcmp (str, "0") || + !strcasecmp (str, "false") || + !strcasecmp (str, "f") || + !strcasecmp (str, "no") || + !strcasecmp (str, "n") || + !strcasecmp (str, "off")) + return 0; + + nbdkit_error ("could not decipher boolean (%s)", str); + return -1; +} + +/* Read a password from configuration value. */ +int +nbdkit_read_password (const char *value, char **password) +{ + int tty, err; + struct termios orig, temp; + ssize_t r; + size_t n; + FILE *fp; + + /* Read from stdin. */ + if (strcmp (value, "-") == 0) { + printf ("password: "); + + /* Set no echo. */ + tty = isatty (0); + if (tty) { + tcgetattr (0, &orig); + temp = orig; + temp.c_lflag &= ~ECHO; + tcsetattr (0, TCSAFLUSH, &temp); + } + + r = getline (password, &n, stdin); + err = errno; + + /* Restore echo. */ + if (tty) + tcsetattr (0, TCSAFLUSH, &orig); + + /* Complete the printf above. */ + printf ("\n"); + + if (r == -1) { + errno = err; + nbdkit_error ("could not read password from stdin: %m"); + return -1; + } + if (*password && r > 0 && (*password)[r-1] == '\n') + (*password)[r-1] = '\0'; + } + + /* Read password from a file. */ + else if (value[0] == '+') { + fp = fopen (&value[1], "r"); + if (fp == NULL) { + nbdkit_error ("open %s: %m", &value[1]); + return -1; + } + r = getline (password, &n, fp); + err = errno; + fclose (fp); + if (r == -1) { + errno = err; + nbdkit_error ("could not read password from file %s: %m", &value[1]); + return -1; + } + if (*password && r > 0 && (*password)[r-1] == '\n') + (*password)[r-1] = '\0'; + } + + /* Parameter is the password. */ + else { + *password = strdup (value); + if (*password == NULL) { + nbdkit_error ("strdup: %m"); + return -1; + } + } + + return 0; +} + +char * +nbdkit_realpath (const char *path) +{ + char *ret; + + if (path == NULL || *path == '\0') { + nbdkit_error ("cannot resolve a null or empty path"); + return NULL; + } + + ret = realpath (path, NULL); + if (ret == NULL) { + nbdkit_error ("realpath: %s: %m", path); + return NULL; + } + + return ret; +} diff --git a/test-driver b/test-driver new file mode 100755 index 0000000..b8521a4 --- /dev/null +++ b/test-driver @@ -0,0 +1,148 @@ +#! /bin/sh +# test-driver - basic testsuite driver script. + +scriptversion=2018-03-07.03; # UTC + +# Copyright (C) 2011-2018 Free Software Foundation, Inc. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <https://www.gnu.org/licenses/>. + +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + +# This file is maintained in Automake, please report +# bugs to <bug-automake@gnu.org> or send patches to +# <automake-patches@gnu.org>. + +# Make unconditional expansion of undefined variables an error. This +# helps a lot in preventing typo-related bugs. +set -u + +usage_error () +{ + echo "$0: $*" >&2 + print_usage >&2 + exit 2 +} + +print_usage () +{ + cat <<END +Usage: + test-driver --test-name=NAME --log-file=PATH --trs-file=PATH + [--expect-failure={yes|no}] [--color-tests={yes|no}] + [--enable-hard-errors={yes|no}] [--] + TEST-SCRIPT [TEST-SCRIPT-ARGUMENTS] +The '--test-name', '--log-file' and '--trs-file' options are mandatory. +END +} + +test_name= # Used for reporting. +log_file= # Where to save the output of the test script. +trs_file= # Where to save the metadata of the test run. +expect_failure=no +color_tests=no +enable_hard_errors=yes +while test $# -gt 0; do + case $1 in + --help) print_usage; exit $?;; + --version) echo "test-driver $scriptversion"; exit $?;; + --test-name) test_name=$2; shift;; + --log-file) log_file=$2; shift;; + --trs-file) trs_file=$2; shift;; + --color-tests) color_tests=$2; shift;; + --expect-failure) expect_failure=$2; shift;; + --enable-hard-errors) enable_hard_errors=$2; shift;; + --) shift; break;; + -*) usage_error "invalid option: '$1'";; + *) break;; + esac + shift +done + +missing_opts= +test x"$test_name" = x && missing_opts="$missing_opts --test-name" +test x"$log_file" = x && missing_opts="$missing_opts --log-file" +test x"$trs_file" = x && missing_opts="$missing_opts --trs-file" +if test x"$missing_opts" != x; then + usage_error "the following mandatory options are missing:$missing_opts" +fi + +if test $# -eq 0; then + usage_error "missing argument" +fi + +if test $color_tests = yes; then + # Keep this in sync with 'lib/am/check.am:$(am__tty_colors)'. + red='' # Red. + grn='' # Green. + lgn='' # Light green. + blu='' # Blue. + mgn='' # Magenta. + std='' # No color. +else + red= grn= lgn= blu= mgn= std= +fi + +do_exit='rm -f $log_file $trs_file; (exit $st); exit $st' +trap "st=129; $do_exit" 1 +trap "st=130; $do_exit" 2 +trap "st=141; $do_exit" 13 +trap "st=143; $do_exit" 15 + +# Test script is run here. +"$@" >$log_file 2>&1 +estatus=$? + +if test $enable_hard_errors = no && test $estatus -eq 99; then + tweaked_estatus=1 +else + tweaked_estatus=$estatus +fi + +case $tweaked_estatus:$expect_failure in + 0:yes) col=$red res=XPASS recheck=yes gcopy=yes;; + 0:*) col=$grn res=PASS recheck=no gcopy=no;; + 77:*) col=$blu res=SKIP recheck=no gcopy=yes;; + 99:*) col=$mgn res=ERROR recheck=yes gcopy=yes;; + *:yes) col=$lgn res=XFAIL recheck=no gcopy=yes;; + *:*) col=$red res=FAIL recheck=yes gcopy=yes;; +esac + +# Report the test outcome and exit status in the logs, so that one can +# know whether the test passed or failed simply by looking at the '.log' +# file, without the need of also peaking into the corresponding '.trs' +# file (automake bug#11814). +echo "$res $test_name (exit status: $estatus)" >>$log_file + +# Report outcome to console. +echo "${col}${res}${std}: $test_name" + +# Register the test result, and other relevant metadata. +echo ":test-result: $res" > $trs_file +echo ":global-test-result: $res" >> $trs_file +echo ":recheck: $recheck" >> $trs_file +echo ":copy-in-global-log: $gcopy" >> $trs_file + +# Local Variables: +# mode: shell-script +# sh-indentation: 2 +# eval: (add-hook 'before-save-hook 'time-stamp) +# time-stamp-start: "scriptversion=" +# time-stamp-format: "%:y-%02m-%02d.%02H" +# time-stamp-time-zone: "UTC0" +# time-stamp-end: "; # UTC" +# End: diff --git a/tests/Makefile.am b/tests/Makefile.am new file mode 100644 index 0000000..601da5f --- /dev/null +++ b/tests/Makefile.am @@ -0,0 +1,979 @@ +# nbdkit +# Copyright (C) 2013-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +EXTRA_DIST = \ + generate-file-data.sh \ + generate-offset-data.sh \ + make-pki.sh \ + make-psk.sh \ + python-exception.py \ + README.tests \ + shebang.pl \ + shebang.py \ + shebang.rb \ + ssh/sshd_config.in \ + test-ansi-c.sh \ + test-blocksize.sh \ + test-cache.sh \ + test-cache-max-size.sh \ + test-cache-on-read.sh \ + test-captive.sh \ + test-cow.sh \ + test-cxx.sh \ + test-data-7E.sh \ + test-data-base64.sh \ + test-data-extents.sh \ + test-data-file.sh \ + test-data-raw.sh \ + test-debug-flags.sh \ + test-dump-config.sh \ + test-dump-plugin.sh \ + test-dump-plugin-example4.sh \ + test-eflags.sh \ + test-error0.sh \ + test-error10.sh \ + test-error100.sh \ + test-file-extents.sh \ + test-floppy.sh \ + test-foreground.sh \ + test-fua.sh \ + test-full.sh \ + test-help.sh \ + test-help-plugin.sh \ + test-ip.sh \ + test-iso.sh \ + test-layers.sh \ + test-linuxdisk.sh \ + test-linuxdisk-copy-out.sh \ + test-log.sh \ + test.lua \ + test-memory-largest.sh \ + test-memory-largest-for-qemu.sh \ + test-nozero.sh \ + test-null-extents.sh \ + test_ocaml_plugin.ml \ + test-ocaml.c \ + test-offset2.sh \ + test-offset-extents.sh \ + test-parallel-file.sh \ + test-parallel-nbd.sh \ + test-partition1.sh \ + test-partition2.sh \ + test-partitioning1.sh \ + test-partitioning2.sh \ + test-partitioning3.sh \ + test-partitioning4.sh \ + test-partitioning5.sh \ + test-partitioning6.sh \ + test-pattern.sh \ + test-pattern-largest.sh \ + test-pattern-largest-for-qemu.sh \ + test-python-exception.sh \ + test.pl \ + test.py \ + test-rate.sh \ + test-rate-dynamic.sh \ + test.rb \ + test-readahead-copy.sh \ + test-ssh.sh \ + test.tcl \ + test-shebang-perl.sh \ + test-shebang-python.sh \ + test-shebang-ruby.sh \ + test-shell.sh \ + test-sh-extents.sh \ + test-single.sh \ + test-single-from-file.sh \ + test-start.sh \ + test-random-sock.sh \ + test-tls.sh \ + test-tls-psk.sh \ + test-truncate1.sh \ + test-truncate2.sh \ + test-truncate3.sh \ + test-truncate-extents.sh \ + test-vddk.sh \ + test-vddk-real.sh \ + test-version.sh \ + test-version-filter.sh \ + test-version-plugin.sh \ + test-zero.sh + +# Use 'make check' to run the ordinary tests. To run all the tests +# under valgrind, use the following rule: +check-valgrind: + NBDKIT_VALGRIND=1 $(MAKE) check + +# To run only tests which require root, use: +check-root: + $(MAKE) check TESTS="test-file-block" + +# Run a basic check against a real copy of VDDK. You must set +# vddkdir to point to the library location, eg: +# +# make check-vddk vddkdir=vmware-vix-disklib-distrib +check-vddk: + $(MAKE) check TESTS=test-vddk-real.sh + +#---------------------------------------------------------------------- +# Basic server command line and start-up tests. + +check_PROGRAMS = +check_DATA = +check_SCRIPTS = +check_LTLIBRARIES = +noinst_LTLIBRARIES = + +# Ensure we're testing the local copy by running everything through +# the nbdkit helper script in the top build directory. +TESTS_ENVIRONMENT = PATH=$(abs_top_builddir):$(PATH) SRCDIR=$(srcdir) + +TESTS = \ + test-help.sh \ + test-version.sh \ + test-dump-config.sh + +if HAVE_PLUGINS + +TESTS += \ + test-help-plugin.sh \ + test-version-plugin.sh \ + test-version-filter.sh \ + test-dump-plugin.sh \ + test-start.sh \ + test-single.sh \ + test-single-from-file.sh \ + test-captive.sh \ + test-random-sock.sh \ + test-tls.sh \ + test-tls-psk.sh \ + test-ip.sh \ + test-socket-activation \ + test-foreground.sh \ + test-debug-flags.sh + +check_PROGRAMS += \ + test-socket-activation + +test_socket_activation_SOURCES = test-socket-activation.c +test_socket_activation_CFLAGS = $(WARNINGS_CFLAGS) + +endif HAVE_PLUGINS + +# Test the header files can be included on their own. +check_PROGRAMS += \ + test-just-plugin-header \ + test-just-filter-header +TESTS += \ + test-just-plugin-header \ + test-just-filter-header + +test_just_plugin_header_SOURCES = \ + test-just-plugin-header.c +test_just_plugin_header_CPPFLAGS = \ + -I$(top_srcdir)/include +test_just_plugin_header_CFLAGS = \ + $(WARNINGS_CFLAGS) + +test_just_filter_header_SOURCES = \ + test-just-filter-header.c +test_just_filter_header_CPPFLAGS = \ + -I$(top_srcdir)/include +test_just_filter_header_CFLAGS = \ + $(WARNINGS_CFLAGS) + +if CAN_TEST_ANSI_C +# This builds a plugin using an ANSI (ISO C90) compiler to ensure that +# the header file is compatible. The plugin does nothing very +# interesting, it's mainly a compile test. +TESTS += \ + test-ansi-c.sh +# check_LTLIBRARIES won't build a shared library (see automake manual). +# So we have to do this and add a dependency. +noinst_LTLIBRARIES += test-ansi-c-plugin.la +test-ansi-c.sh: test-ansi-c-plugin.la + +test_ansi_c_plugin_la_SOURCES = \ + test-ansi-c-plugin.c \ + $(top_srcdir)/include/nbdkit-plugin.h +test_ansi_c_plugin_la_CPPFLAGS = \ + -std=c90 -pedantic \ + -I$(top_srcdir)/include +test_ansi_c_plugin_la_CFLAGS = \ + $(WARNINGS_CFLAGS) +# For use of the -rpath option, see: +# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html +test_ansi_c_plugin_la_LDFLAGS = \ + -module -avoid-version -shared -rpath /nowhere +endif CAN_TEST_ANSI_C + +if HAVE_CXX +# This builds a plugin and a filter using the C++ compiler. They +# don't do anything interesting when run. +TESTS += \ + test-cxx.sh +# check_LTLIBRARIES won't build a shared library (see automake manual). +# So we have to do this and add a dependency. +noinst_LTLIBRARIES += test-cxx-plugin.la test-cxx-filter.la +test-cxx.sh: test-cxx-plugin.la test-cxx-filter.la + +test_cxx_plugin_la_SOURCES = \ + test-cxx-plugin.cpp \ + $(top_srcdir)/include/nbdkit-plugin.h +test_cxx_plugin_la_CPPFLAGS = \ + -I$(top_srcdir)/include +test_cxx_plugin_la_CXXFLAGS = \ + $(WARNINGS_CFLAGS) +# For use of the -rpath option, see: +# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html +test_cxx_plugin_la_LDFLAGS = \ + -module -avoid-version -shared -rpath /nowhere + +test_cxx_filter_la_SOURCES = \ + test-cxx-filter.cpp \ + $(top_srcdir)/include/nbdkit-filter.h +test_cxx_filter_la_CPPFLAGS = \ + -I$(top_srcdir)/include +test_cxx_filter_la_CXXFLAGS = \ + $(WARNINGS_CFLAGS) +# For use of the -rpath option, see: +# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html +test_cxx_filter_la_LDFLAGS = \ + -module -avoid-version -shared -rpath /nowhere +endif HAVE_CXX + +# Exit with parent test. +check_PROGRAMS += test-exit-with-parent +TESTS += test-exit-with-parent + +test_exit_with_parent_SOURCES = \ + test-exit-with-parent.c test.h +test_exit_with_parent_CPPFLAGS = \ + -I$(top_srcdir)/common/include +test_exit_with_parent_CFLAGS = \ + $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) + +# PKI files for the TLS tests. +check_DATA += pki/.stamp +pki/.stamp: $(srcdir)/make-pki.sh + SRCDIR=$(srcdir) $(srcdir)/make-pki.sh + +# PSK keys for the TLS-PSK tests. +check_DATA += keys.psk +keys.psk: $(srcdir)/make-psk.sh + SRCDIR=$(srcdir) $(srcdir)/make-psk.sh + +# Keys are expensive to recreate so only delete them when we do +# ‘make distclean’. +DISTCLEANFILES = keys.psk +distclean-local: distclean-local-tls +distclean-local-tls: + rm -rf pki + +#---------------------------------------------------------------------- +# Tests of C plugins or tests which require plugins. + +if HAVE_PLUGINS + +# Common data shared by multiple tests +check_DATA += file-data +CLEANFILES += file-data +file-data: generate-file-data.sh + $(srcdir)/generate-file-data.sh $@ + +# While most tests need libguestfs, testing parallel I/O is easier when +# using qemu-io to kick off asynchronous requests. +TESTS += \ + test-parallel-file.sh \ + test-parallel-nbd.sh + +# Most in-depth tests need libguestfs, since that is a convenient way to +# drive qemu. +LIBGUESTFS_TESTS = +EXTRA_PROGRAMS = +if HAVE_LIBGUESTFS +check_PROGRAMS += $(LIBGUESTFS_TESTS) +TESTS += $(LIBGUESTFS_TESTS) + +# Use the 'direct' backend, and ensure maximum libguestfs debugging is +# written to the *.log files in case there is a problem. +TESTS_ENVIRONMENT += \ + LIBGUESTFS_ATTACH_METHOD=appliance \ + LIBGUESTFS_DEBUG=1 \ + LIBGUESTFS_TRACE=1 \ + LD_LIBRARY_PATH=../plugins/ocaml/.libs:$(LD_LIBRARY_PATH) \ + LIBRARY_PATH=../plugins/ocaml/.libs:$(LIBRARY_PATH) + +# Common test library. +check_LTLIBRARIES += libtest.la +libtest_la_SOURCES = test.c test.h +libtest_la_CFLAGS = $(WARNINGS_CFLAGS) + +# Basic connection test. +LIBGUESTFS_TESTS += test-connect + +test_connect_SOURCES = test-connect.c test.h +test_connect_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +test_connect_LDADD = libtest.la $(LIBGUESTFS_LIBS) + +# newstyle protocol test. +LIBGUESTFS_TESTS += test-newstyle + +test_newstyle_SOURCES = test-newstyle.c test.h +test_newstyle_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +test_newstyle_LDADD = libtest.la $(LIBGUESTFS_LIBS) + +# oldstyle protocol test. +LIBGUESTFS_TESTS += test-oldstyle + +test_oldstyle_SOURCES = test-oldstyle.c test.h +test_oldstyle_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +test_oldstyle_LDADD = libtest.la $(LIBGUESTFS_LIBS) + +endif HAVE_LIBGUESTFS + +# Test export flags. +TESTS += test-eflags.sh + +# common disk image shared with several tests +if HAVE_GUESTFISH +check_DATA += disk +CLEANFILES += disk + +disk: + rm -f $@ $@-t + guestfish -N $@-t=fs:ext4:100M -m /dev/sda1 \ + write /hello.txt "hello,world" + mv $@-t $@ + +endif HAVE_GUESTFISH + +# curl plugin test. + +if HAVE_CURL +if HAVE_GUESTFISH + +# curl plugin test. +LIBGUESTFS_TESTS += test-curl + +test_curl_SOURCES = \ + test-curl.c \ + web-server.c \ + web-server.h \ + test.h +test_curl_CFLAGS = \ + $(WARNINGS_CFLAGS) \ + $(LIBGUESTFS_CFLAGS) \ + $(PTHREAD_CFLAGS) +test_curl_LDFLAGS = \ + $(PTHREAD_LIBS) +test_curl_LDADD = \ + libtest.la \ + $(LIBGUESTFS_LIBS) + +endif HAVE_GUESTFISH +endif HAVE_CURL + +# data plugin test. +LIBGUESTFS_TESTS += test-data +TESTS += \ + test-data-7E.sh \ + test-data-base64.sh \ + test-data-extents.sh \ + test-data-file.sh \ + test-data-raw.sh + +test_data_SOURCES = test-data.c test.h +test_data_CPPFLAGS = -I$(top_srcdir)/common/include +test_data_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +test_data_LDADD = libtest.la $(LIBGUESTFS_LIBS) + +# ext2 plugin test. +if HAVE_EXT2 +if HAVE_GUESTFISH + +LIBGUESTFS_TESTS += test-ext2 +check_DATA += ext2.img +CLEANFILES += ext2.img + +ext2.img: disk + rm -f $@ $@-t + guestfish \ + sparse $@-t 2G : \ + run : \ + mkfs ext4 /dev/sda : \ + mount /dev/sda / : \ + mkdir /disks : \ + upload $< /disks/disk.img + mv $@-t $@ + +test_ext2_SOURCES = test-ext2.c test.h +test_ext2_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +test_ext2_LDADD = libtest.la $(LIBGUESTFS_LIBS) + +endif HAVE_GUESTFISH +endif HAVE_EXT2 + +# file plugin test. +LIBGUESTFS_TESTS += test-file test-file-block + +test_file_SOURCES = test-file.c test.h +test_file_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +test_file_LDADD = libtest.la $(LIBGUESTFS_LIBS) + +test_file_block_SOURCES = test-file-block.c test.h +test_file_block_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +test_file_block_LDADD = libtest.la $(LIBGUESTFS_LIBS) + +if HAVE_GUESTFISH +TESTS += test-file-extents.sh +endif HAVE_GUESTFISH + +# floppy plugin test. +if HAVE_GUESTFISH +TESTS += test-floppy.sh +endif HAVE_GUESTFISH + +# full plugin test. +TESTS += test-full.sh + +# gzip plugin test. +if HAVE_ZLIB +if HAVE_GUESTFISH + +LIBGUESTFS_TESTS += test-gzip +check_DATA += disk.gz +CLEANFILES += disk.gz + +test_gzip_SOURCES = test-gzip.c test.h +test_gzip_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +test_gzip_LDADD = libtest.la $(LIBGUESTFS_LIBS) + +disk.gz: disk + rm -f $@ + gzip -9 -c disk > $@ + +endif HAVE_GUESTFISH +endif HAVE_ZLIB + +# iso plugin test. +if HAVE_ISO +if HAVE_GUESTFISH + +TESTS += test-iso.sh + +endif HAVE_GUESTFISH +endif HAVE_ISO + +# linuxdisk plugin test. +if HAVE_GUESTFISH +TESTS += \ + test-linuxdisk.sh \ + test-linuxdisk-copy-out.sh +endif HAVE_GUESTFISH + +# memory plugin test. +LIBGUESTFS_TESTS += test-memory +TESTS += test-memory-largest.sh test-memory-largest-for-qemu.sh + +test_memory_SOURCES = test-memory.c test.h +test_memory_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +test_memory_LDADD = libtest.la $(LIBGUESTFS_LIBS) + +# partitioning plugin test. +TESTS += \ + test-partitioning1.sh \ + test-partitioning4.sh \ + test-partitioning6.sh +if HAVE_GUESTFISH +TESTS += \ + test-partitioning2.sh \ + test-partitioning3.sh \ + test-partitioning5.sh +endif HAVE_GUESTFISH + +# pattern plugin test. +TESTS += \ + test-pattern.sh \ + test-pattern-largest.sh \ + test-pattern-largest-for-qemu.sh + +# nbd plugin test. +LIBGUESTFS_TESTS += test-nbd + +test_nbd_SOURCES = test-nbd.c test.h +test_nbd_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +test_nbd_LDADD = libtest.la $(LIBGUESTFS_LIBS) + +# null plugin test. +LIBGUESTFS_TESTS += test-null +TESTS += test-null-extents.sh + +test_null_SOURCES = test-null.c test.h +test_null_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +test_null_LDADD = libtest.la $(LIBGUESTFS_LIBS) + +# random plugin test. +LIBGUESTFS_TESTS += test-random + +test_random_SOURCES = test-random.c test.h +test_random_CPPFLAGS = -I $(top_srcdir)/common/include +test_random_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +test_random_LDADD = libtest.la $(LIBGUESTFS_LIBS) + +# split files plugin test. +check_DATA += split1 split2 split3 +CLEANFILES += split1 split2 split3 +split1: file-data + rm -f $@ $@-t + dd if=$< of=$@-t bs=1 count=100 + mv $@-t $@ +split2: file-data + rm -f $@ $@-t + dd if=$< of=$@-t bs=1 count=100 skip=100 + mv $@-t $@ +split3: file-data + rm -f $@ $@-t + dd if=$< of=$@-t bs=1 skip=200 + mv $@-t $@ +LIBGUESTFS_TESTS += test-split + +test_split_SOURCES = test-split.c test.h +test_split_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +test_split_LDADD = libtest.la $(LIBGUESTFS_LIBS) + +# ssh plugin test. +if HAVE_SSH +# Uses ‘disk’ so we have to make it conditional on guestfish. +if HAVE_GUESTFISH +TESTS += test-ssh.sh +endif HAVE_GUESTFISH +check_DATA += \ + ssh/sshd_config \ + ssh/ssh_host_rsa_key ssh/ssh_host_rsa_key.pub \ + ssh/authorized_keys +SSH_RANDOM_PORT := $(shell bash -c 'echo $$(( 10000 + $$RANDOM ))') +CLEANFILES += \ + ssh/*~ \ + ssh/sshd_config \ + ssh/authorized_keys +DISTCLEANFILES += \ + ssh/ssh_host_rsa_key ssh/ssh_host_rsa_key.pub \ + ssh/id_rsa ssh/id_rsa.pub \ + stamp-ssh-host-key stamp-ssh-user-key + +ssh/sshd_config: ssh/sshd_config.in Makefile + rm -f $@ $@-t + $(SED) \ + -e 's,__abs_builddir__,$(abs_builddir),g' \ + -e 's,__RANDOM_PORT__,$(SSH_RANDOM_PORT),g' \ + < $< > $@-t + mv $@-t $@ + +ssh/ssh_host_rsa_key ssh/ssh_host_rsa_key.pub: stamp-ssh-host-key +stamp-ssh-host-key: + rm -f $@ + rm -f ssh/ssh_host_rsa_key + rm -f ssh/ssh_host_rsa_key.pub + ssh-keygen -t rsa -f ssh/ssh_host_rsa_key -N '' + touch $@ + +ssh/authorized_keys: ssh/id_rsa.pub + rm -f $@ $@-t + cp $< $@-t + mv $@-t $@ + +ssh/id_rsa ssh/id_rsa.pub: stamp-ssh-user-key +stamp-ssh-user-key: + rm -f $@ + rm -f ssh/id_rsa + rm -f ssh/id_rsa.pub + ssh-keygen -t rsa -f ssh/id_rsa -N '' + touch $@ +endif HAVE_SSH + +# streaming plugin test. +# Doesn't work: +#LIBGUESTFS_TESTS += test-streaming +EXTRA_PROGRAMS += test-streaming + +test_streaming_SOURCES = test-streaming.c test.h +test_streaming_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +test_streaming_LDADD = libtest.la $(LIBGUESTFS_LIBS) + +# VDDK plugin test. +# This only tests that the plugin can be loaded against a +# dummy VDDK library, it is not a detailed test. + +# check_LTLIBRARIES won't build a shared library (see automake manual). +# So we have to do this and add a dependency. +noinst_LTLIBRARIES += libvixDiskLib.la +TESTS += \ + test-vddk.sh \ + test-vddk-real.sh + +libvixDiskLib_la_SOURCES = \ + dummy-vddk.c +libvixDiskLib_la_CPPFLAGS = \ + -I$(top_srcdir)/plugins/vddk +libvixDiskLib_la_CXXFLAGS = \ + $(WARNINGS_CFLAGS) +# For use of the -rpath option, see: +# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html +libvixDiskLib_la_LDFLAGS = \ + -shared -version-number 6:0:0 -rpath /nowhere + +# zero plugin test. +TESTS += test-zero.sh + +#---------------------------------------------------------------------- +# Tests of language plugins. + +# OCaml plugin test. +if HAVE_OCAML + +LIBGUESTFS_TESTS += test-ocaml + +# This is somewhat different from the other tests because we have +# to build an actual plugin here. +test_ocaml_SOURCES = test-ocaml.c test.h +test_ocaml_CFLAGS = \ + $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +test_ocaml_LDADD = libtest.la $(LIBGUESTFS_LIBS) + +check_SCRIPTS += test-ocaml-plugin.so +test-ocaml-plugin.so: test_ocaml_plugin.cmx ../plugins/ocaml/libnbdkitocaml.la ../plugins/ocaml/NBDKit.cmi ../plugins/ocaml/NBDKit.cmx + $(OCAMLOPT) $(OCAMLOPTFLAGS) -I ../plugins/ocaml \ + -output-obj -runtime-variant _pic -o $@ \ + NBDKit.cmx $< \ + -cclib -L../plugins/ocaml/.libs -cclib -lnbdkitocaml +test_ocaml_plugin.cmx: test_ocaml_plugin.ml ../plugins/ocaml/NBDKit.cmi + $(OCAMLOPT) $(OCAMLOPTFLAGS) -I ../plugins/ocaml -c $< -o $@ + +endif HAVE_OCAML + +# perl plugin test. +if HAVE_PERL + +TESTS += \ + test-dump-plugin-example4.sh \ + test-shebang-perl.sh +LIBGUESTFS_TESTS += test-perl + +test_perl_SOURCES = test-lang-plugins.c test.h +test_perl_CFLAGS = \ + -DLANG='"perl"' -DSCRIPT='"$(srcdir)/test.pl"' \ + $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +test_perl_LDADD = libtest.la $(LIBGUESTFS_LIBS) + +endif HAVE_PERL + +# python plugin test. +if HAVE_PYTHON + +TESTS += \ + test-python-exception.sh \ + test-shebang-python.sh +LIBGUESTFS_TESTS += test-python + +test_python_SOURCES = test-lang-plugins.c test.h +test_python_CFLAGS = \ + -DLANG='"python"' -DSCRIPT='"$(srcdir)/test.py"' \ + $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +test_python_LDADD = libtest.la $(LIBGUESTFS_LIBS) + +endif HAVE_PYTHON + +# Ruby plugin test. +if HAVE_RUBY + +# Ruby tests are disabled. See "WARNING" section in +# plugins/ruby/nbdkit-ruby-plugin.pod + +#LIBGUESTFS_TESTS += \ +# test-ruby +#TESTS += test-shebang-ruby.sh +EXTRA_PROGRAMS += test-ruby + +test_ruby_SOURCES = test-lang-plugins.c test.h +test_ruby_CFLAGS = \ + -DLANG='"ruby"' -DSCRIPT='"$(srcdir)/test.rb"' \ + $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +test_ruby_LDADD = libtest.la $(LIBGUESTFS_LIBS) + +endif HAVE_RUBY + +# Shell (sh) plugin test. +LIBGUESTFS_TESTS += test-shell +check_DATA += test-shell.img +CLEANFILES += test-shell.img + +test_shell_SOURCES = test-lang-plugins.c test.h +test_shell_CFLAGS = \ + -DLANG='"sh"' -DSCRIPT='"$(srcdir)/test-shell.sh"' \ + $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +test_shell_LDADD = libtest.la $(LIBGUESTFS_LIBS) + +test-shell.img: + truncate -s 1048576 $@ + +TESTS += test-sh-extents.sh + +# Tcl plugin test. +if HAVE_TCL + +LIBGUESTFS_TESTS += test-tcl + +test_tcl_SOURCES = test-lang-plugins.c test.h +test_tcl_CFLAGS = \ + -DLANG='"tcl"' -DSCRIPT='"$(srcdir)/test.tcl"' \ + $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +test_tcl_LDADD = libtest.la $(LIBGUESTFS_LIBS) + +endif HAVE_TCL + +# Lua plugin test. +if HAVE_LUA + +LIBGUESTFS_TESTS += test-lua + +test_lua_SOURCES = test-lang-plugins.c test.h +test_lua_CFLAGS = \ + -DLANG='"lua"' -DSCRIPT='"$(srcdir)/test.lua"' \ + $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +test_lua_LDADD = libtest.la $(LIBGUESTFS_LIBS) + +endif HAVE_LUA + +#---------------------------------------------------------------------- +# Tests of filters. + +# Generic test of filter layers. +check_PROGRAMS += test-layers +TESTS += test-layers.sh test-layers + +test_layers_SOURCES = \ + test-layers.c +test_layers_CPPFLAGS = \ + -I$(top_srcdir)/common/include \ + -I$(top_srcdir)/common/protocol \ + -I$(top_srcdir)/server +test_layers_CFLAGS = \ + $(WARNINGS_CFLAGS) \ + $(PTHREAD_CFLAGS) +test_layers_LDFLAGS = \ + $(PTHREAD_LIBS) +test_layers_DEPENDENCIES = \ + test-layers-plugin.la \ + test-layers-filter1.la \ + test-layers-filter2.la \ + test-layers-filter3.la + +# check_LTLIBRARIES won't build a shared library (see automake manual). +# So we have to do this and add a dependency. +noinst_LTLIBRARIES += \ + test-layers-plugin.la \ + test-layers-filter1.la \ + test-layers-filter2.la \ + test-layers-filter3.la + +test_layers_plugin_la_SOURCES = \ + test-layers-plugin.c \ + $(top_srcdir)/include/nbdkit-plugin.h +test_layers_plugin_la_CPPFLAGS = -I$(top_srcdir)/include +test_layers_plugin_la_CFLAGS = $(WARNINGS_CFLAGS) +# For use of the -rpath option, see: +# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html +test_layers_plugin_la_LDFLAGS = \ + -module -avoid-version -shared -rpath /nowhere + +test_layers_filter1_la_SOURCES = \ + test-layers-filter.c \ + $(top_srcdir)/include/nbdkit-filter.h +test_layers_filter1_la_CPPFLAGS = -I$(top_srcdir)/include +test_layers_filter1_la_CFLAGS = $(WARNINGS_CFLAGS) -Dlayer='"filter1"' +# For use of the -rpath option, see: +# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html +test_layers_filter1_la_LDFLAGS = \ + -module -avoid-version -shared -rpath /nowhere + +test_layers_filter2_la_SOURCES = \ + test-layers-filter.c \ + $(top_srcdir)/include/nbdkit-filter.h +test_layers_filter2_la_CPPFLAGS = -I$(top_srcdir)/include +test_layers_filter2_la_CFLAGS = $(WARNINGS_CFLAGS) -Dlayer='"filter2"' +# For use of the -rpath option, see: +# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html +test_layers_filter2_la_LDFLAGS = \ + -module -avoid-version -shared -rpath /nowhere + +test_layers_filter3_la_SOURCES = \ + test-layers-filter.c \ + $(top_srcdir)/include/nbdkit-filter.h +test_layers_filter3_la_CPPFLAGS = -I$(top_srcdir)/include +test_layers_filter3_la_CFLAGS = $(WARNINGS_CFLAGS) -Dlayer='"filter3"' +# For use of the -rpath option, see: +# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html +test_layers_filter3_la_LDFLAGS = \ + -module -avoid-version -shared -rpath /nowhere + +# blocksize filter test. +TESTS += test-blocksize.sh + +# cache filter test. +if HAVE_GUESTFISH +TESTS += \ + test-cache.sh \ + test-cache-on-read.sh +endif HAVE_GUESTFISH +TESTS += test-cache-max-size.sh + +# cow filter test. +if HAVE_GUESTFISH +TESTS += test-cow.sh +endif HAVE_GUESTFISH + +# delay filter test. +LIBGUESTFS_TESTS += test-delay + +test_delay_SOURCES = test-delay.c test.h +test_delay_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +test_delay_LDADD = libtest.la $(LIBGUESTFS_LIBS) + +# error filter test. +LIBGUESTFS_TESTS += test-error + +test_error_SOURCES = test-error.c test.h +test_error_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +test_error_LDADD = libtest.la $(LIBGUESTFS_LIBS) + +TESTS += \ + test-error0.sh \ + test-error10.sh \ + test-error100.sh + +# fua filter test. +TESTS += test-fua.sh + +# log filter test. +TESTS += test-log.sh + +# nozero filter test. +TESTS += test-nozero.sh + +# offset filter test. +check_DATA += offset-data +CLEANFILES += offset-data +LIBGUESTFS_TESTS += test-offset + +offset-data: generate-offset-data.sh + $(srcdir)/generate-offset-data.sh $@ + +test_offset_SOURCES = test-offset.c test.h +test_offset_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +test_offset_LDADD = libtest.la $(LIBGUESTFS_LIBS) + +TESTS += \ + test-offset2.sh \ + test-offset-extents.sh + +# partition filter test. +TESTS += test-partition1.sh +if HAVE_GUESTFISH +TESTS += test-partition2.sh +endif HAVE_GUESTFISH + +# rate filter test. +TESTS += \ + test-rate.sh \ + test-rate-dynamic.sh + +# readahead filter test. +LIBGUESTFS_TESTS += test-readahead +TESTS += test-readahead-copy.sh + +test_readahead_SOURCES = test-readahead.c test.h +test_readahead_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +test_readahead_LDADD = libtest.la $(LIBGUESTFS_LIBS) + +# truncate filter tests. +TESTS += \ + test-truncate1.sh \ + test-truncate2.sh \ + test-truncate3.sh \ + test-truncate-extents.sh + +# xz filter test. +if HAVE_LIBLZMA +if HAVE_GUESTFISH + +LIBGUESTFS_TESTS += test-xz +check_DATA += disk.xz +CLEANFILES += disk.xz + +test_xz_SOURCES = test-xz.c test.h +test_xz_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +test_xz_LDADD = libtest.la $(LIBGUESTFS_LIBS) + +disk.xz: disk + rm -f $@ +# We choose a very small block size here only for testing. Normally +# you should choose a 16M block size. + xz --best --block-size=32768 -c disk > $@ + +if HAVE_CURL + +# xz filter + curl. +LIBGUESTFS_TESTS += test-xz-curl + +test_xz_curl_SOURCES = \ + test-xz-curl.c \ + web-server.c \ + web-server.h \ + test.h +test_xz_curl_CFLAGS = \ + $(WARNINGS_CFLAGS) \ + $(LIBGUESTFS_CFLAGS) \ + $(PTHREAD_CFLAGS) +test_xz_curl_LDFLAGS = \ + $(PTHREAD_LIBS) +test_xz_curl_LDADD = \ + libtest.la \ + $(LIBGUESTFS_LIBS) + +endif HAVE_CURL + +endif HAVE_GUESTFISH +endif HAVE_LIBLZMA + +endif HAVE_PLUGINS diff --git a/tests/Makefile.in b/tests/Makefile.in new file mode 100644 index 0000000..8855d56 --- /dev/null +++ b/tests/Makefile.in @@ -0,0 +1,4128 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2013-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. 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The plugin does nothing very +# interesting, it's mainly a compile test. +@CAN_TEST_ANSI_C_TRUE@am__append_3 = \ +@CAN_TEST_ANSI_C_TRUE@ test-ansi-c.sh + +# check_LTLIBRARIES won't build a shared library (see automake manual). +# So we have to do this and add a dependency. +@CAN_TEST_ANSI_C_TRUE@am__append_4 = test-ansi-c-plugin.la + +# This builds a plugin and a filter using the C++ compiler. They +# don't do anything interesting when run. +@HAVE_CXX_TRUE@am__append_5 = \ +@HAVE_CXX_TRUE@ test-cxx.sh + +# check_LTLIBRARIES won't build a shared library (see automake manual). +# So we have to do this and add a dependency. +@HAVE_CXX_TRUE@am__append_6 = test-cxx-plugin.la test-cxx-filter.la + +#---------------------------------------------------------------------- +# Tests of C plugins or tests which require plugins. + +# Common data shared by multiple tests +@HAVE_PLUGINS_TRUE@am__append_7 = file-data +@HAVE_PLUGINS_TRUE@am__append_8 = file-data + +# While most tests need libguestfs, testing parallel I/O is easier when +# using qemu-io to kick off asynchronous requests. +@HAVE_PLUGINS_TRUE@am__append_9 = \ +@HAVE_PLUGINS_TRUE@ test-parallel-file.sh \ +@HAVE_PLUGINS_TRUE@ test-parallel-nbd.sh + +@HAVE_PLUGINS_TRUE@EXTRA_PROGRAMS = test-streaming$(EXEEXT) \ +@HAVE_PLUGINS_TRUE@ $(am__EXEEXT_1) +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@am__append_10 = $(LIBGUESTFS_TESTS) +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@am__append_11 = $(LIBGUESTFS_TESTS) + +# Use the 'direct' backend, and ensure maximum libguestfs debugging is +# written to the *.log files in case there is a problem. +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@am__append_12 = \ +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@ LIBGUESTFS_ATTACH_METHOD=appliance \ +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@ LIBGUESTFS_DEBUG=1 \ +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@ LIBGUESTFS_TRACE=1 \ +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@ LD_LIBRARY_PATH=../plugins/ocaml/.libs:$(LD_LIBRARY_PATH) \ +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@ LIBRARY_PATH=../plugins/ocaml/.libs:$(LIBRARY_PATH) + + +# Common test library. +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@am__append_13 = libtest.la + +# Basic connection test. + +# newstyle protocol test. + +# oldstyle protocol test. +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@am__append_14 = test-connect \ +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@ test-newstyle \ +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@ test-oldstyle + +# Test export flags. +@HAVE_PLUGINS_TRUE@am__append_15 = test-eflags.sh test-data-7E.sh \ +@HAVE_PLUGINS_TRUE@ test-data-base64.sh test-data-extents.sh \ +@HAVE_PLUGINS_TRUE@ test-data-file.sh test-data-raw.sh + +# common disk image shared with several tests +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am__append_16 = disk +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am__append_17 = disk + +# curl plugin test. + +# curl plugin test. +@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am__append_18 = test-curl + +# ext2 plugin test. +@HAVE_EXT2_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am__append_19 = test-ext2 +@HAVE_EXT2_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am__append_20 = ext2.img +@HAVE_EXT2_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am__append_21 = ext2.img + +# floppy plugin test. +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am__append_22 = \ +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ test-file-extents.sh \ +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ test-floppy.sh + +# full plugin test. +@HAVE_PLUGINS_TRUE@am__append_23 = test-full.sh + +# gzip plugin test. +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@@HAVE_ZLIB_TRUE@am__append_24 = test-gzip +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@@HAVE_ZLIB_TRUE@am__append_25 = disk.gz +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@@HAVE_ZLIB_TRUE@am__append_26 = disk.gz + +# iso plugin test. +@HAVE_GUESTFISH_TRUE@@HAVE_ISO_TRUE@@HAVE_PLUGINS_TRUE@am__append_27 = test-iso.sh + +# linuxdisk plugin test. +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am__append_28 = \ +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ test-linuxdisk.sh \ +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ test-linuxdisk-copy-out.sh + + +# partitioning plugin test. +@HAVE_PLUGINS_TRUE@am__append_29 = test-memory-largest.sh \ +@HAVE_PLUGINS_TRUE@ test-memory-largest-for-qemu.sh \ +@HAVE_PLUGINS_TRUE@ test-partitioning1.sh test-partitioning4.sh \ +@HAVE_PLUGINS_TRUE@ test-partitioning6.sh +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am__append_30 = \ +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ test-partitioning2.sh \ +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ test-partitioning3.sh \ +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ test-partitioning5.sh + + +# pattern plugin test. +@HAVE_PLUGINS_TRUE@am__append_31 = test-pattern.sh \ +@HAVE_PLUGINS_TRUE@ test-pattern-largest.sh \ +@HAVE_PLUGINS_TRUE@ test-pattern-largest-for-qemu.sh \ +@HAVE_PLUGINS_TRUE@ test-null-extents.sh + +# split files plugin test. +@HAVE_PLUGINS_TRUE@am__append_32 = split1 split2 split3 +@HAVE_PLUGINS_TRUE@am__append_33 = split1 split2 split3 + +# ssh plugin test. +# Uses ‘disk’ so we have to make it conditional on guestfish. +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@am__append_34 = test-ssh.sh +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@am__append_35 = \ +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ ssh/sshd_config \ +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ ssh/ssh_host_rsa_key ssh/ssh_host_rsa_key.pub \ +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ ssh/authorized_keys + +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@am__append_36 = \ +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ ssh/*~ \ +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ ssh/sshd_config \ +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ ssh/authorized_keys + +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@am__append_37 = \ +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ ssh/ssh_host_rsa_key ssh/ssh_host_rsa_key.pub \ +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ ssh/id_rsa ssh/id_rsa.pub \ +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ stamp-ssh-host-key stamp-ssh-user-key + + +# VDDK plugin test. +# This only tests that the plugin can be loaded against a +# dummy VDDK library, it is not a detailed test. + +# check_LTLIBRARIES won't build a shared library (see automake manual). +# So we have to do this and add a dependency. + +# check_LTLIBRARIES won't build a shared library (see automake manual). +# So we have to do this and add a dependency. +@HAVE_PLUGINS_TRUE@am__append_38 = libvixDiskLib.la \ +@HAVE_PLUGINS_TRUE@ test-layers-plugin.la \ +@HAVE_PLUGINS_TRUE@ test-layers-filter1.la \ +@HAVE_PLUGINS_TRUE@ test-layers-filter2.la \ +@HAVE_PLUGINS_TRUE@ test-layers-filter3.la + +# zero plugin test. +@HAVE_PLUGINS_TRUE@am__append_39 = test-vddk.sh test-vddk-real.sh \ +@HAVE_PLUGINS_TRUE@ test-zero.sh + +#---------------------------------------------------------------------- +# Tests of language plugins. + +# OCaml plugin test. +@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@am__append_40 = test-ocaml +@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@am__append_41 = test-ocaml-plugin.so + +# perl plugin test. +@HAVE_PERL_TRUE@@HAVE_PLUGINS_TRUE@am__append_42 = \ +@HAVE_PERL_TRUE@@HAVE_PLUGINS_TRUE@ test-dump-plugin-example4.sh \ +@HAVE_PERL_TRUE@@HAVE_PLUGINS_TRUE@ test-shebang-perl.sh + +@HAVE_PERL_TRUE@@HAVE_PLUGINS_TRUE@am__append_43 = test-perl + +# python plugin test. +@HAVE_PLUGINS_TRUE@@HAVE_PYTHON_TRUE@am__append_44 = \ +@HAVE_PLUGINS_TRUE@@HAVE_PYTHON_TRUE@ test-python-exception.sh \ +@HAVE_PLUGINS_TRUE@@HAVE_PYTHON_TRUE@ test-shebang-python.sh + +@HAVE_PLUGINS_TRUE@@HAVE_PYTHON_TRUE@am__append_45 = test-python + +# Ruby plugin test. + +# Ruby tests are disabled. See "WARNING" section in +# plugins/ruby/nbdkit-ruby-plugin.pod + +#LIBGUESTFS_TESTS += \ +# test-ruby +#TESTS += test-shebang-ruby.sh +@HAVE_PLUGINS_TRUE@@HAVE_RUBY_TRUE@am__append_46 = test-ruby + +# offset filter test. +@HAVE_PLUGINS_TRUE@am__append_47 = test-shell.img offset-data +@HAVE_PLUGINS_TRUE@am__append_48 = test-shell.img offset-data + +# blocksize filter test. +@HAVE_PLUGINS_TRUE@am__append_49 = test-sh-extents.sh test-layers.sh \ +@HAVE_PLUGINS_TRUE@ test-layers test-blocksize.sh + +# Tcl plugin test. +@HAVE_PLUGINS_TRUE@@HAVE_TCL_TRUE@am__append_50 = test-tcl + +# Lua plugin test. +@HAVE_LUA_TRUE@@HAVE_PLUGINS_TRUE@am__append_51 = test-lua + +#---------------------------------------------------------------------- +# Tests of filters. + +# Generic test of filter layers. +@HAVE_PLUGINS_TRUE@am__append_52 = test-layers + +# cache filter test. +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am__append_53 = \ +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ test-cache.sh \ +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ test-cache-on-read.sh + +@HAVE_PLUGINS_TRUE@am__append_54 = test-cache-max-size.sh + +# cow filter test. +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am__append_55 = test-cow.sh + +# fua filter test. + +# log filter test. + +# nozero filter test. + +# partition filter test. +@HAVE_PLUGINS_TRUE@am__append_56 = test-error0.sh test-error10.sh \ +@HAVE_PLUGINS_TRUE@ test-error100.sh test-fua.sh test-log.sh \ +@HAVE_PLUGINS_TRUE@ test-nozero.sh test-offset2.sh \ +@HAVE_PLUGINS_TRUE@ test-offset-extents.sh test-partition1.sh +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am__append_57 = test-partition2.sh + +# rate filter test. + +# truncate filter tests. +@HAVE_PLUGINS_TRUE@am__append_58 = test-rate.sh test-rate-dynamic.sh \ +@HAVE_PLUGINS_TRUE@ test-readahead-copy.sh test-truncate1.sh \ +@HAVE_PLUGINS_TRUE@ test-truncate2.sh test-truncate3.sh \ +@HAVE_PLUGINS_TRUE@ test-truncate-extents.sh + +# xz filter test. +@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@am__append_59 = test-xz +@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@am__append_60 = disk.xz +@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@am__append_61 = disk.xz + +# xz filter + curl. +@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@am__append_62 = test-xz-curl +subdir = tests +ACLOCAL_M4 = $(top_srcdir)/aclocal.m4 +am__aclocal_m4_deps = $(top_srcdir)/m4/ax_pthread.m4 \ + $(top_srcdir)/m4/libtool.m4 $(top_srcdir)/m4/ltoptions.m4 \ + $(top_srcdir)/m4/ltsugar.m4 $(top_srcdir)/m4/ltversion.m4 \ + $(top_srcdir)/m4/lt~obsolete.m4 $(top_srcdir)/m4/ocaml.m4 \ + $(top_srcdir)/configure.ac +am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \ + $(ACLOCAL_M4) +DIST_COMMON = $(srcdir)/Makefile.am $(am__DIST_COMMON) +mkinstalldirs = $(install_sh) -d +CONFIG_HEADER = $(top_builddir)/config.h +CONFIG_CLEAN_FILES = functions.sh +CONFIG_CLEAN_VPATH_FILES = +@HAVE_PLUGINS_TRUE@@HAVE_RUBY_TRUE@am__EXEEXT_1 = test-ruby$(EXEEXT) +@HAVE_PLUGINS_TRUE@am__EXEEXT_2 = test-socket-activation$(EXEEXT) +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@am__EXEEXT_3 = test-connect$(EXEEXT) \ +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@ test-newstyle$(EXEEXT) \ +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@ test-oldstyle$(EXEEXT) +@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am__EXEEXT_4 = test-curl$(EXEEXT) +@HAVE_EXT2_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am__EXEEXT_5 = test-ext2$(EXEEXT) +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@@HAVE_ZLIB_TRUE@am__EXEEXT_6 = test-gzip$(EXEEXT) +@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@am__EXEEXT_7 = \ +@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@ test-ocaml$(EXEEXT) +@HAVE_PERL_TRUE@@HAVE_PLUGINS_TRUE@am__EXEEXT_8 = test-perl$(EXEEXT) +@HAVE_PLUGINS_TRUE@@HAVE_PYTHON_TRUE@am__EXEEXT_9 = \ +@HAVE_PLUGINS_TRUE@@HAVE_PYTHON_TRUE@ test-python$(EXEEXT) +@HAVE_PLUGINS_TRUE@@HAVE_TCL_TRUE@am__EXEEXT_10 = test-tcl$(EXEEXT) +@HAVE_LUA_TRUE@@HAVE_PLUGINS_TRUE@am__EXEEXT_11 = test-lua$(EXEEXT) +@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@am__EXEEXT_12 = test-xz$(EXEEXT) +@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@am__EXEEXT_13 = test-xz-curl$(EXEEXT) +@HAVE_PLUGINS_TRUE@am__EXEEXT_14 = $(am__EXEEXT_3) $(am__EXEEXT_4) \ +@HAVE_PLUGINS_TRUE@ test-data$(EXEEXT) $(am__EXEEXT_5) \ +@HAVE_PLUGINS_TRUE@ test-file$(EXEEXT) test-file-block$(EXEEXT) \ +@HAVE_PLUGINS_TRUE@ $(am__EXEEXT_6) test-memory$(EXEEXT) \ +@HAVE_PLUGINS_TRUE@ test-nbd$(EXEEXT) test-null$(EXEEXT) \ +@HAVE_PLUGINS_TRUE@ test-random$(EXEEXT) test-split$(EXEEXT) \ +@HAVE_PLUGINS_TRUE@ $(am__EXEEXT_7) $(am__EXEEXT_8) \ +@HAVE_PLUGINS_TRUE@ $(am__EXEEXT_9) test-shell$(EXEEXT) \ +@HAVE_PLUGINS_TRUE@ $(am__EXEEXT_10) $(am__EXEEXT_11) \ +@HAVE_PLUGINS_TRUE@ test-delay$(EXEEXT) test-error$(EXEEXT) \ +@HAVE_PLUGINS_TRUE@ test-offset$(EXEEXT) \ +@HAVE_PLUGINS_TRUE@ test-readahead$(EXEEXT) $(am__EXEEXT_12) \ +@HAVE_PLUGINS_TRUE@ $(am__EXEEXT_13) +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@am__EXEEXT_15 = \ +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@ $(am__EXEEXT_14) +@HAVE_PLUGINS_TRUE@am__EXEEXT_16 = test-layers$(EXEEXT) +LTLIBRARIES = $(noinst_LTLIBRARIES) +libtest_la_LIBADD = +am__libtest_la_SOURCES_DIST = test.c test.h +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@am_libtest_la_OBJECTS = \ +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@ libtest_la-test.lo +libtest_la_OBJECTS = $(am_libtest_la_OBJECTS) +AM_V_lt = $(am__v_lt_@AM_V@) +am__v_lt_ = $(am__v_lt_@AM_DEFAULT_V@) +am__v_lt_0 = --silent +am__v_lt_1 = +libtest_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \ + $(LIBTOOLFLAGS) --mode=link $(CCLD) $(libtest_la_CFLAGS) \ + $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@ +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@am_libtest_la_rpath = +libvixDiskLib_la_LIBADD = +am__libvixDiskLib_la_SOURCES_DIST = dummy-vddk.c +@HAVE_PLUGINS_TRUE@am_libvixDiskLib_la_OBJECTS = \ +@HAVE_PLUGINS_TRUE@ libvixDiskLib_la-dummy-vddk.lo +libvixDiskLib_la_OBJECTS = $(am_libvixDiskLib_la_OBJECTS) +libvixDiskLib_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC \ + $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CCLD) \ + $(AM_CFLAGS) $(CFLAGS) $(libvixDiskLib_la_LDFLAGS) $(LDFLAGS) \ + -o $@ +@HAVE_PLUGINS_TRUE@am_libvixDiskLib_la_rpath = +test_ansi_c_plugin_la_LIBADD = +am__test_ansi_c_plugin_la_SOURCES_DIST = test-ansi-c-plugin.c \ + $(top_srcdir)/include/nbdkit-plugin.h +@CAN_TEST_ANSI_C_TRUE@am_test_ansi_c_plugin_la_OBJECTS = test_ansi_c_plugin_la-test-ansi-c-plugin.lo +test_ansi_c_plugin_la_OBJECTS = $(am_test_ansi_c_plugin_la_OBJECTS) +test_ansi_c_plugin_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC \ + $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CCLD) \ + $(test_ansi_c_plugin_la_CFLAGS) $(CFLAGS) \ + $(test_ansi_c_plugin_la_LDFLAGS) $(LDFLAGS) -o $@ +@CAN_TEST_ANSI_C_TRUE@am_test_ansi_c_plugin_la_rpath = +test_cxx_filter_la_LIBADD = +am__test_cxx_filter_la_SOURCES_DIST = test-cxx-filter.cpp \ + $(top_srcdir)/include/nbdkit-filter.h +@HAVE_CXX_TRUE@am_test_cxx_filter_la_OBJECTS = \ +@HAVE_CXX_TRUE@ test_cxx_filter_la-test-cxx-filter.lo +test_cxx_filter_la_OBJECTS = $(am_test_cxx_filter_la_OBJECTS) +test_cxx_filter_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX \ + $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CXXLD) \ + $(test_cxx_filter_la_CXXFLAGS) $(CXXFLAGS) \ + $(test_cxx_filter_la_LDFLAGS) $(LDFLAGS) -o $@ +@HAVE_CXX_TRUE@am_test_cxx_filter_la_rpath = +test_cxx_plugin_la_LIBADD = +am__test_cxx_plugin_la_SOURCES_DIST = test-cxx-plugin.cpp \ + $(top_srcdir)/include/nbdkit-plugin.h +@HAVE_CXX_TRUE@am_test_cxx_plugin_la_OBJECTS = \ +@HAVE_CXX_TRUE@ test_cxx_plugin_la-test-cxx-plugin.lo +test_cxx_plugin_la_OBJECTS = $(am_test_cxx_plugin_la_OBJECTS) +test_cxx_plugin_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX \ + $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CXXLD) \ + $(test_cxx_plugin_la_CXXFLAGS) $(CXXFLAGS) \ + $(test_cxx_plugin_la_LDFLAGS) $(LDFLAGS) -o $@ +@HAVE_CXX_TRUE@am_test_cxx_plugin_la_rpath = +test_layers_filter1_la_LIBADD = +am__test_layers_filter1_la_SOURCES_DIST = test-layers-filter.c \ + $(top_srcdir)/include/nbdkit-filter.h +@HAVE_PLUGINS_TRUE@am_test_layers_filter1_la_OBJECTS = test_layers_filter1_la-test-layers-filter.lo +test_layers_filter1_la_OBJECTS = $(am_test_layers_filter1_la_OBJECTS) +test_layers_filter1_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC \ + $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CCLD) \ + $(test_layers_filter1_la_CFLAGS) $(CFLAGS) \ + $(test_layers_filter1_la_LDFLAGS) $(LDFLAGS) -o $@ +@HAVE_PLUGINS_TRUE@am_test_layers_filter1_la_rpath = +test_layers_filter2_la_LIBADD = +am__test_layers_filter2_la_SOURCES_DIST = test-layers-filter.c \ + $(top_srcdir)/include/nbdkit-filter.h +@HAVE_PLUGINS_TRUE@am_test_layers_filter2_la_OBJECTS = test_layers_filter2_la-test-layers-filter.lo +test_layers_filter2_la_OBJECTS = $(am_test_layers_filter2_la_OBJECTS) +test_layers_filter2_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC \ + $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CCLD) \ + $(test_layers_filter2_la_CFLAGS) $(CFLAGS) \ + $(test_layers_filter2_la_LDFLAGS) $(LDFLAGS) -o $@ +@HAVE_PLUGINS_TRUE@am_test_layers_filter2_la_rpath = +test_layers_filter3_la_LIBADD = +am__test_layers_filter3_la_SOURCES_DIST = test-layers-filter.c \ + $(top_srcdir)/include/nbdkit-filter.h +@HAVE_PLUGINS_TRUE@am_test_layers_filter3_la_OBJECTS = test_layers_filter3_la-test-layers-filter.lo +test_layers_filter3_la_OBJECTS = $(am_test_layers_filter3_la_OBJECTS) +test_layers_filter3_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC \ + $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CCLD) \ + $(test_layers_filter3_la_CFLAGS) $(CFLAGS) \ + $(test_layers_filter3_la_LDFLAGS) $(LDFLAGS) -o $@ +@HAVE_PLUGINS_TRUE@am_test_layers_filter3_la_rpath = +test_layers_plugin_la_LIBADD = +am__test_layers_plugin_la_SOURCES_DIST = test-layers-plugin.c \ + $(top_srcdir)/include/nbdkit-plugin.h +@HAVE_PLUGINS_TRUE@am_test_layers_plugin_la_OBJECTS = test_layers_plugin_la-test-layers-plugin.lo +test_layers_plugin_la_OBJECTS = $(am_test_layers_plugin_la_OBJECTS) +test_layers_plugin_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC \ + $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CCLD) \ + $(test_layers_plugin_la_CFLAGS) $(CFLAGS) \ + $(test_layers_plugin_la_LDFLAGS) $(LDFLAGS) -o $@ +@HAVE_PLUGINS_TRUE@am_test_layers_plugin_la_rpath = +am__test_connect_SOURCES_DIST = test-connect.c test.h +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@am_test_connect_OBJECTS = test_connect-test-connect.$(OBJEXT) +test_connect_OBJECTS = $(am_test_connect_OBJECTS) +am__DEPENDENCIES_1 = +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@test_connect_DEPENDENCIES = \ +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@ libtest.la \ +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@ $(am__DEPENDENCIES_1) +test_connect_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \ + $(LIBTOOLFLAGS) --mode=link $(CCLD) $(test_connect_CFLAGS) \ + $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@ +am__test_curl_SOURCES_DIST = test-curl.c web-server.c web-server.h \ + test.h +@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am_test_curl_OBJECTS = test_curl-test-curl.$(OBJEXT) \ +@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ test_curl-web-server.$(OBJEXT) +test_curl_OBJECTS = $(am_test_curl_OBJECTS) +@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@test_curl_DEPENDENCIES = libtest.la \ +@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ $(am__DEPENDENCIES_1) +test_curl_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \ + $(LIBTOOLFLAGS) --mode=link $(CCLD) $(test_curl_CFLAGS) \ + $(CFLAGS) $(test_curl_LDFLAGS) $(LDFLAGS) -o $@ +am__test_data_SOURCES_DIST = test-data.c test.h +@HAVE_PLUGINS_TRUE@am_test_data_OBJECTS = \ +@HAVE_PLUGINS_TRUE@ test_data-test-data.$(OBJEXT) +test_data_OBJECTS = $(am_test_data_OBJECTS) +@HAVE_PLUGINS_TRUE@test_data_DEPENDENCIES = libtest.la \ +@HAVE_PLUGINS_TRUE@ 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@PYTHON_VERSION@ +RANLIB = @RANLIB@ +RUBY = @RUBY@ +RUBY_CFLAGS = @RUBY_CFLAGS@ +RUBY_LIBS = @RUBY_LIBS@ +SED = @SED@ +SET_MAKE = @SET_MAKE@ +SHELL = @SHELL@ +SSH_CFLAGS = @SSH_CFLAGS@ +SSH_LIBS = @SSH_LIBS@ +STRIP = @STRIP@ +TCL_CFLAGS = @TCL_CFLAGS@ +TCL_LIBS = @TCL_LIBS@ +VALGRIND = @VALGRIND@ +VALGRIND_CFLAGS = @VALGRIND_CFLAGS@ +VALGRIND_LIBS = @VALGRIND_LIBS@ +VERSION = @VERSION@ +WARNINGS_CFLAGS = @WARNINGS_CFLAGS@ +ZLIB_CFLAGS = @ZLIB_CFLAGS@ +ZLIB_LIBS = @ZLIB_LIBS@ +abs_builddir = @abs_builddir@ +abs_srcdir = @abs_srcdir@ +abs_top_builddir = @abs_top_builddir@ +abs_top_srcdir = @abs_top_srcdir@ +ac_ct_AR = @ac_ct_AR@ +ac_ct_CC = @ac_ct_CC@ +ac_ct_CXX = @ac_ct_CXX@ +ac_ct_DUMPBIN = @ac_ct_DUMPBIN@ +am__include = @am__include@ +am__leading_dot = @am__leading_dot@ +am__quote = @am__quote@ +am__tar = @am__tar@ +am__untar = @am__untar@ +ax_pthread_config = @ax_pthread_config@ +bashcompdir = @bashcompdir@ +bindir = @bindir@ +build = @build@ +build_alias = @build_alias@ +build_cpu = @build_cpu@ +build_os = @build_os@ +build_vendor = @build_vendor@ +builddir = @builddir@ +datadir = @datadir@ +datarootdir = @datarootdir@ +docdir = @docdir@ +dvidir = @dvidir@ +exec_prefix = @exec_prefix@ +filters = @filters@ +host = @host@ +host_alias = @host_alias@ +host_cpu = @host_cpu@ +host_os = @host_os@ +host_vendor = @host_vendor@ +htmldir = @htmldir@ +includedir = @includedir@ +infodir = @infodir@ +install_sh = @install_sh@ +lang_plugins = @lang_plugins@ +libdir = @libdir@ +libexecdir = @libexecdir@ +localedir = @localedir@ +localstatedir = @localstatedir@ +mandir = @mandir@ +mkdir_p = @mkdir_p@ +non_lang_plugins = @non_lang_plugins@ +oldincludedir = @oldincludedir@ +pdfdir = @pdfdir@ +plugins = @plugins@ +prefix = @prefix@ +program_transform_name = @program_transform_name@ +psdir = @psdir@ +sbindir = @sbindir@ +sharedstatedir = @sharedstatedir@ +srcdir = @srcdir@ +sysconfdir = @sysconfdir@ +target_alias = @target_alias@ +top_build_prefix = @top_build_prefix@ +top_builddir = @top_builddir@ +top_srcdir = @top_srcdir@ +plugindir = $(libdir)/nbdkit/plugins +filterdir = $(libdir)/nbdkit/filters +CLEANFILES = *~ *.cmi *.cmx *.cmxa *.so $(am__append_8) \ + $(am__append_17) $(am__append_21) $(am__append_26) \ + $(am__append_33) $(am__append_36) $(am__append_48) \ + $(am__append_61) +EXTRA_DIST = \ + generate-file-data.sh \ + generate-offset-data.sh \ + make-pki.sh \ + make-psk.sh \ + python-exception.py \ + README.tests \ + shebang.pl \ + shebang.py \ + shebang.rb \ + ssh/sshd_config.in \ + test-ansi-c.sh \ + test-blocksize.sh \ + test-cache.sh \ + test-cache-max-size.sh \ + test-cache-on-read.sh \ + test-captive.sh \ + test-cow.sh \ + test-cxx.sh \ + test-data-7E.sh \ + test-data-base64.sh \ + test-data-extents.sh \ + test-data-file.sh \ + test-data-raw.sh \ + test-debug-flags.sh \ + test-dump-config.sh \ + test-dump-plugin.sh \ + test-dump-plugin-example4.sh \ + test-eflags.sh \ + test-error0.sh \ + test-error10.sh \ + test-error100.sh \ + test-file-extents.sh \ + test-floppy.sh \ + test-foreground.sh \ + test-fua.sh \ + test-full.sh \ + test-help.sh \ + test-help-plugin.sh \ + test-ip.sh \ + test-iso.sh \ + test-layers.sh \ + test-linuxdisk.sh \ + test-linuxdisk-copy-out.sh \ + test-log.sh \ + test.lua \ + test-memory-largest.sh \ + test-memory-largest-for-qemu.sh \ + test-nozero.sh \ + test-null-extents.sh \ + test_ocaml_plugin.ml \ + test-ocaml.c \ + test-offset2.sh \ + test-offset-extents.sh \ + test-parallel-file.sh \ + test-parallel-nbd.sh \ + test-partition1.sh \ + test-partition2.sh \ + test-partitioning1.sh \ + test-partitioning2.sh \ + test-partitioning3.sh \ + test-partitioning4.sh \ + test-partitioning5.sh \ + test-partitioning6.sh \ + test-pattern.sh \ + test-pattern-largest.sh \ + test-pattern-largest-for-qemu.sh \ + test-python-exception.sh \ + test.pl \ + test.py \ + test-rate.sh \ + test-rate-dynamic.sh \ + test.rb \ + test-readahead-copy.sh \ + test-ssh.sh \ + test.tcl \ + test-shebang-perl.sh \ + test-shebang-python.sh \ + test-shebang-ruby.sh \ + test-shell.sh \ + test-sh-extents.sh \ + test-single.sh \ + test-single-from-file.sh \ + test-start.sh \ + test-random-sock.sh \ + test-tls.sh \ + test-tls-psk.sh \ + test-truncate1.sh \ + test-truncate2.sh \ + test-truncate3.sh \ + test-truncate-extents.sh \ + test-vddk.sh \ + test-vddk-real.sh \ + test-version.sh \ + test-version-filter.sh \ + test-version-plugin.sh \ + test-zero.sh + + +# PKI files for the TLS tests. + +# PSK keys for the TLS-PSK tests. +check_DATA = pki/.stamp keys.psk $(am__append_7) $(am__append_16) \ + $(am__append_20) $(am__append_25) $(am__append_32) \ + $(am__append_35) $(am__append_47) $(am__append_60) +check_SCRIPTS = $(am__append_41) +check_LTLIBRARIES = $(am__append_13) +noinst_LTLIBRARIES = $(am__append_4) $(am__append_6) $(am__append_38) + +# Ensure we're testing the local copy by running everything through +# the nbdkit helper script in the top build directory. +TESTS_ENVIRONMENT = PATH=$(abs_top_builddir):$(PATH) SRCDIR=$(srcdir) \ + $(am__append_12) +@HAVE_PLUGINS_TRUE@test_socket_activation_SOURCES = test-socket-activation.c +@HAVE_PLUGINS_TRUE@test_socket_activation_CFLAGS = $(WARNINGS_CFLAGS) +test_just_plugin_header_SOURCES = \ + test-just-plugin-header.c + +test_just_plugin_header_CPPFLAGS = \ + -I$(top_srcdir)/include + +test_just_plugin_header_CFLAGS = \ + $(WARNINGS_CFLAGS) + +test_just_filter_header_SOURCES = \ + test-just-filter-header.c + +test_just_filter_header_CPPFLAGS = \ + -I$(top_srcdir)/include + +test_just_filter_header_CFLAGS = \ + $(WARNINGS_CFLAGS) + +@CAN_TEST_ANSI_C_TRUE@test_ansi_c_plugin_la_SOURCES = \ +@CAN_TEST_ANSI_C_TRUE@ test-ansi-c-plugin.c \ +@CAN_TEST_ANSI_C_TRUE@ $(top_srcdir)/include/nbdkit-plugin.h + +@CAN_TEST_ANSI_C_TRUE@test_ansi_c_plugin_la_CPPFLAGS = \ +@CAN_TEST_ANSI_C_TRUE@ -std=c90 -pedantic \ +@CAN_TEST_ANSI_C_TRUE@ -I$(top_srcdir)/include + +@CAN_TEST_ANSI_C_TRUE@test_ansi_c_plugin_la_CFLAGS = \ +@CAN_TEST_ANSI_C_TRUE@ $(WARNINGS_CFLAGS) + +# For use of the -rpath option, see: +# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html +@CAN_TEST_ANSI_C_TRUE@test_ansi_c_plugin_la_LDFLAGS = \ +@CAN_TEST_ANSI_C_TRUE@ -module -avoid-version -shared -rpath /nowhere + +@HAVE_CXX_TRUE@test_cxx_plugin_la_SOURCES = \ +@HAVE_CXX_TRUE@ test-cxx-plugin.cpp \ +@HAVE_CXX_TRUE@ $(top_srcdir)/include/nbdkit-plugin.h + +@HAVE_CXX_TRUE@test_cxx_plugin_la_CPPFLAGS = \ +@HAVE_CXX_TRUE@ -I$(top_srcdir)/include + +@HAVE_CXX_TRUE@test_cxx_plugin_la_CXXFLAGS = \ +@HAVE_CXX_TRUE@ $(WARNINGS_CFLAGS) + +# For use of the -rpath option, see: +# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html +@HAVE_CXX_TRUE@test_cxx_plugin_la_LDFLAGS = \ +@HAVE_CXX_TRUE@ -module -avoid-version -shared -rpath /nowhere + +@HAVE_CXX_TRUE@test_cxx_filter_la_SOURCES = \ +@HAVE_CXX_TRUE@ test-cxx-filter.cpp \ +@HAVE_CXX_TRUE@ $(top_srcdir)/include/nbdkit-filter.h + +@HAVE_CXX_TRUE@test_cxx_filter_la_CPPFLAGS = \ +@HAVE_CXX_TRUE@ -I$(top_srcdir)/include + +@HAVE_CXX_TRUE@test_cxx_filter_la_CXXFLAGS = \ +@HAVE_CXX_TRUE@ $(WARNINGS_CFLAGS) + +# For use of the -rpath option, see: +# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html +@HAVE_CXX_TRUE@test_cxx_filter_la_LDFLAGS = \ +@HAVE_CXX_TRUE@ -module -avoid-version -shared -rpath /nowhere + +test_exit_with_parent_SOURCES = \ + test-exit-with-parent.c test.h + +test_exit_with_parent_CPPFLAGS = \ + -I$(top_srcdir)/common/include + +test_exit_with_parent_CFLAGS = \ + $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) + + +# Keys are expensive to recreate so only delete them when we do +# ‘make distclean’. +DISTCLEANFILES = keys.psk $(am__append_37) + +# Most in-depth tests need libguestfs, since that is a convenient way to +# drive qemu. + +# data plugin test. + +# file plugin test. + +# memory plugin test. + +# nbd plugin test. + +# null plugin test. + +# random plugin test. + +# Shell (sh) plugin test. + +# delay filter test. + +# error filter test. + +# readahead filter test. +@HAVE_PLUGINS_TRUE@LIBGUESTFS_TESTS = $(am__append_14) \ +@HAVE_PLUGINS_TRUE@ $(am__append_18) test-data $(am__append_19) \ +@HAVE_PLUGINS_TRUE@ test-file test-file-block $(am__append_24) \ +@HAVE_PLUGINS_TRUE@ test-memory test-nbd test-null test-random \ +@HAVE_PLUGINS_TRUE@ test-split $(am__append_40) \ +@HAVE_PLUGINS_TRUE@ $(am__append_43) $(am__append_45) \ +@HAVE_PLUGINS_TRUE@ test-shell $(am__append_50) \ +@HAVE_PLUGINS_TRUE@ $(am__append_51) test-delay test-error \ +@HAVE_PLUGINS_TRUE@ test-offset test-readahead $(am__append_59) \ +@HAVE_PLUGINS_TRUE@ $(am__append_62) +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@libtest_la_SOURCES = test.c test.h +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@libtest_la_CFLAGS = $(WARNINGS_CFLAGS) +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@test_connect_SOURCES = test-connect.c test.h +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@test_connect_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@test_connect_LDADD = libtest.la $(LIBGUESTFS_LIBS) +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@test_newstyle_SOURCES = test-newstyle.c test.h +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@test_newstyle_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@test_newstyle_LDADD = libtest.la $(LIBGUESTFS_LIBS) +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@test_oldstyle_SOURCES = test-oldstyle.c test.h +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@test_oldstyle_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@test_oldstyle_LDADD = libtest.la $(LIBGUESTFS_LIBS) +@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@test_curl_SOURCES = \ +@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ test-curl.c \ +@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ web-server.c \ +@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ web-server.h \ +@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ test.h + +@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@test_curl_CFLAGS = \ +@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ $(WARNINGS_CFLAGS) \ +@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ $(LIBGUESTFS_CFLAGS) \ +@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ $(PTHREAD_CFLAGS) + +@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@test_curl_LDFLAGS = \ +@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ $(PTHREAD_LIBS) + +@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@test_curl_LDADD = \ +@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ libtest.la \ +@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ $(LIBGUESTFS_LIBS) + +@HAVE_PLUGINS_TRUE@test_data_SOURCES = test-data.c test.h +@HAVE_PLUGINS_TRUE@test_data_CPPFLAGS = -I$(top_srcdir)/common/include +@HAVE_PLUGINS_TRUE@test_data_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +@HAVE_PLUGINS_TRUE@test_data_LDADD = libtest.la $(LIBGUESTFS_LIBS) +@HAVE_EXT2_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@test_ext2_SOURCES = test-ext2.c test.h +@HAVE_EXT2_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@test_ext2_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +@HAVE_EXT2_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@test_ext2_LDADD = libtest.la $(LIBGUESTFS_LIBS) +@HAVE_PLUGINS_TRUE@test_file_SOURCES = test-file.c test.h +@HAVE_PLUGINS_TRUE@test_file_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +@HAVE_PLUGINS_TRUE@test_file_LDADD = libtest.la $(LIBGUESTFS_LIBS) +@HAVE_PLUGINS_TRUE@test_file_block_SOURCES = test-file-block.c test.h +@HAVE_PLUGINS_TRUE@test_file_block_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +@HAVE_PLUGINS_TRUE@test_file_block_LDADD = libtest.la $(LIBGUESTFS_LIBS) +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@@HAVE_ZLIB_TRUE@test_gzip_SOURCES = test-gzip.c test.h +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@@HAVE_ZLIB_TRUE@test_gzip_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@@HAVE_ZLIB_TRUE@test_gzip_LDADD = libtest.la $(LIBGUESTFS_LIBS) +@HAVE_PLUGINS_TRUE@test_memory_SOURCES = test-memory.c test.h +@HAVE_PLUGINS_TRUE@test_memory_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +@HAVE_PLUGINS_TRUE@test_memory_LDADD = libtest.la $(LIBGUESTFS_LIBS) +@HAVE_PLUGINS_TRUE@test_nbd_SOURCES = test-nbd.c test.h +@HAVE_PLUGINS_TRUE@test_nbd_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +@HAVE_PLUGINS_TRUE@test_nbd_LDADD = libtest.la $(LIBGUESTFS_LIBS) +@HAVE_PLUGINS_TRUE@test_null_SOURCES = test-null.c test.h +@HAVE_PLUGINS_TRUE@test_null_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +@HAVE_PLUGINS_TRUE@test_null_LDADD = libtest.la $(LIBGUESTFS_LIBS) +@HAVE_PLUGINS_TRUE@test_random_SOURCES = test-random.c test.h +@HAVE_PLUGINS_TRUE@test_random_CPPFLAGS = -I $(top_srcdir)/common/include +@HAVE_PLUGINS_TRUE@test_random_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +@HAVE_PLUGINS_TRUE@test_random_LDADD = libtest.la $(LIBGUESTFS_LIBS) +@HAVE_PLUGINS_TRUE@test_split_SOURCES = test-split.c test.h +@HAVE_PLUGINS_TRUE@test_split_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +@HAVE_PLUGINS_TRUE@test_split_LDADD = libtest.la $(LIBGUESTFS_LIBS) +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@SSH_RANDOM_PORT := $(shell bash -c 'echo $$(( 10000 + $$RANDOM ))') +@HAVE_PLUGINS_TRUE@test_streaming_SOURCES = test-streaming.c test.h +@HAVE_PLUGINS_TRUE@test_streaming_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +@HAVE_PLUGINS_TRUE@test_streaming_LDADD = libtest.la $(LIBGUESTFS_LIBS) +@HAVE_PLUGINS_TRUE@libvixDiskLib_la_SOURCES = \ +@HAVE_PLUGINS_TRUE@ dummy-vddk.c + +@HAVE_PLUGINS_TRUE@libvixDiskLib_la_CPPFLAGS = \ +@HAVE_PLUGINS_TRUE@ -I$(top_srcdir)/plugins/vddk + +@HAVE_PLUGINS_TRUE@libvixDiskLib_la_CXXFLAGS = \ +@HAVE_PLUGINS_TRUE@ $(WARNINGS_CFLAGS) + +# For use of the -rpath option, see: +# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html +@HAVE_PLUGINS_TRUE@libvixDiskLib_la_LDFLAGS = \ +@HAVE_PLUGINS_TRUE@ -shared -version-number 6:0:0 -rpath /nowhere + + +# This is somewhat different from the other tests because we have +# to build an actual plugin here. +@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@test_ocaml_SOURCES = test-ocaml.c test.h +@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@test_ocaml_CFLAGS = \ +@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@ $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) + +@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@test_ocaml_LDADD = libtest.la $(LIBGUESTFS_LIBS) +@HAVE_PERL_TRUE@@HAVE_PLUGINS_TRUE@test_perl_SOURCES = test-lang-plugins.c test.h +@HAVE_PERL_TRUE@@HAVE_PLUGINS_TRUE@test_perl_CFLAGS = \ +@HAVE_PERL_TRUE@@HAVE_PLUGINS_TRUE@ -DLANG='"perl"' -DSCRIPT='"$(srcdir)/test.pl"' \ +@HAVE_PERL_TRUE@@HAVE_PLUGINS_TRUE@ $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) + +@HAVE_PERL_TRUE@@HAVE_PLUGINS_TRUE@test_perl_LDADD = libtest.la $(LIBGUESTFS_LIBS) +@HAVE_PLUGINS_TRUE@@HAVE_PYTHON_TRUE@test_python_SOURCES = test-lang-plugins.c test.h +@HAVE_PLUGINS_TRUE@@HAVE_PYTHON_TRUE@test_python_CFLAGS = \ +@HAVE_PLUGINS_TRUE@@HAVE_PYTHON_TRUE@ -DLANG='"python"' -DSCRIPT='"$(srcdir)/test.py"' \ +@HAVE_PLUGINS_TRUE@@HAVE_PYTHON_TRUE@ $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) + +@HAVE_PLUGINS_TRUE@@HAVE_PYTHON_TRUE@test_python_LDADD = libtest.la $(LIBGUESTFS_LIBS) +@HAVE_PLUGINS_TRUE@@HAVE_RUBY_TRUE@test_ruby_SOURCES = test-lang-plugins.c test.h +@HAVE_PLUGINS_TRUE@@HAVE_RUBY_TRUE@test_ruby_CFLAGS = \ +@HAVE_PLUGINS_TRUE@@HAVE_RUBY_TRUE@ -DLANG='"ruby"' -DSCRIPT='"$(srcdir)/test.rb"' \ +@HAVE_PLUGINS_TRUE@@HAVE_RUBY_TRUE@ $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) + +@HAVE_PLUGINS_TRUE@@HAVE_RUBY_TRUE@test_ruby_LDADD = libtest.la $(LIBGUESTFS_LIBS) +@HAVE_PLUGINS_TRUE@test_shell_SOURCES = test-lang-plugins.c test.h +@HAVE_PLUGINS_TRUE@test_shell_CFLAGS = \ +@HAVE_PLUGINS_TRUE@ -DLANG='"sh"' -DSCRIPT='"$(srcdir)/test-shell.sh"' \ +@HAVE_PLUGINS_TRUE@ $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) + +@HAVE_PLUGINS_TRUE@test_shell_LDADD = libtest.la $(LIBGUESTFS_LIBS) +@HAVE_PLUGINS_TRUE@@HAVE_TCL_TRUE@test_tcl_SOURCES = test-lang-plugins.c test.h +@HAVE_PLUGINS_TRUE@@HAVE_TCL_TRUE@test_tcl_CFLAGS = \ +@HAVE_PLUGINS_TRUE@@HAVE_TCL_TRUE@ -DLANG='"tcl"' -DSCRIPT='"$(srcdir)/test.tcl"' \ +@HAVE_PLUGINS_TRUE@@HAVE_TCL_TRUE@ $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) + +@HAVE_PLUGINS_TRUE@@HAVE_TCL_TRUE@test_tcl_LDADD = libtest.la $(LIBGUESTFS_LIBS) +@HAVE_LUA_TRUE@@HAVE_PLUGINS_TRUE@test_lua_SOURCES = test-lang-plugins.c test.h +@HAVE_LUA_TRUE@@HAVE_PLUGINS_TRUE@test_lua_CFLAGS = \ +@HAVE_LUA_TRUE@@HAVE_PLUGINS_TRUE@ -DLANG='"lua"' -DSCRIPT='"$(srcdir)/test.lua"' \ +@HAVE_LUA_TRUE@@HAVE_PLUGINS_TRUE@ $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) + +@HAVE_LUA_TRUE@@HAVE_PLUGINS_TRUE@test_lua_LDADD = libtest.la $(LIBGUESTFS_LIBS) +@HAVE_PLUGINS_TRUE@test_layers_SOURCES = \ +@HAVE_PLUGINS_TRUE@ test-layers.c + +@HAVE_PLUGINS_TRUE@test_layers_CPPFLAGS = \ +@HAVE_PLUGINS_TRUE@ -I$(top_srcdir)/common/include \ +@HAVE_PLUGINS_TRUE@ -I$(top_srcdir)/common/protocol \ +@HAVE_PLUGINS_TRUE@ -I$(top_srcdir)/server + +@HAVE_PLUGINS_TRUE@test_layers_CFLAGS = \ +@HAVE_PLUGINS_TRUE@ $(WARNINGS_CFLAGS) \ +@HAVE_PLUGINS_TRUE@ $(PTHREAD_CFLAGS) + +@HAVE_PLUGINS_TRUE@test_layers_LDFLAGS = \ +@HAVE_PLUGINS_TRUE@ $(PTHREAD_LIBS) + +@HAVE_PLUGINS_TRUE@test_layers_DEPENDENCIES = \ +@HAVE_PLUGINS_TRUE@ test-layers-plugin.la \ +@HAVE_PLUGINS_TRUE@ test-layers-filter1.la \ +@HAVE_PLUGINS_TRUE@ test-layers-filter2.la \ +@HAVE_PLUGINS_TRUE@ test-layers-filter3.la + +@HAVE_PLUGINS_TRUE@test_layers_plugin_la_SOURCES = \ +@HAVE_PLUGINS_TRUE@ test-layers-plugin.c \ +@HAVE_PLUGINS_TRUE@ $(top_srcdir)/include/nbdkit-plugin.h + +@HAVE_PLUGINS_TRUE@test_layers_plugin_la_CPPFLAGS = -I$(top_srcdir)/include +@HAVE_PLUGINS_TRUE@test_layers_plugin_la_CFLAGS = $(WARNINGS_CFLAGS) +# For use of the -rpath option, see: +# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html +@HAVE_PLUGINS_TRUE@test_layers_plugin_la_LDFLAGS = \ +@HAVE_PLUGINS_TRUE@ -module -avoid-version -shared -rpath /nowhere + +@HAVE_PLUGINS_TRUE@test_layers_filter1_la_SOURCES = \ +@HAVE_PLUGINS_TRUE@ test-layers-filter.c \ +@HAVE_PLUGINS_TRUE@ $(top_srcdir)/include/nbdkit-filter.h + +@HAVE_PLUGINS_TRUE@test_layers_filter1_la_CPPFLAGS = -I$(top_srcdir)/include +@HAVE_PLUGINS_TRUE@test_layers_filter1_la_CFLAGS = $(WARNINGS_CFLAGS) -Dlayer='"filter1"' +# For use of the -rpath option, see: +# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html +@HAVE_PLUGINS_TRUE@test_layers_filter1_la_LDFLAGS = \ +@HAVE_PLUGINS_TRUE@ -module -avoid-version -shared -rpath /nowhere + +@HAVE_PLUGINS_TRUE@test_layers_filter2_la_SOURCES = \ +@HAVE_PLUGINS_TRUE@ test-layers-filter.c \ +@HAVE_PLUGINS_TRUE@ $(top_srcdir)/include/nbdkit-filter.h + +@HAVE_PLUGINS_TRUE@test_layers_filter2_la_CPPFLAGS = -I$(top_srcdir)/include +@HAVE_PLUGINS_TRUE@test_layers_filter2_la_CFLAGS = $(WARNINGS_CFLAGS) -Dlayer='"filter2"' +# For use of the -rpath option, see: +# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html +@HAVE_PLUGINS_TRUE@test_layers_filter2_la_LDFLAGS = \ +@HAVE_PLUGINS_TRUE@ -module -avoid-version -shared -rpath /nowhere + +@HAVE_PLUGINS_TRUE@test_layers_filter3_la_SOURCES = \ +@HAVE_PLUGINS_TRUE@ test-layers-filter.c \ +@HAVE_PLUGINS_TRUE@ $(top_srcdir)/include/nbdkit-filter.h + +@HAVE_PLUGINS_TRUE@test_layers_filter3_la_CPPFLAGS = -I$(top_srcdir)/include +@HAVE_PLUGINS_TRUE@test_layers_filter3_la_CFLAGS = $(WARNINGS_CFLAGS) -Dlayer='"filter3"' +# For use of the -rpath option, see: +# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html +@HAVE_PLUGINS_TRUE@test_layers_filter3_la_LDFLAGS = \ +@HAVE_PLUGINS_TRUE@ -module -avoid-version -shared -rpath /nowhere + +@HAVE_PLUGINS_TRUE@test_delay_SOURCES = test-delay.c test.h +@HAVE_PLUGINS_TRUE@test_delay_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS) +@HAVE_PLUGINS_TRUE@test_delay_LDADD = libtest.la $(LIBGUESTFS_LIBS) +@HAVE_PLUGINS_TRUE@test_error_SOURCES = 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You must set +# vddkdir to point to the library location, eg: +# +# make check-vddk vddkdir=vmware-vix-disklib-distrib +check-vddk: + $(MAKE) check TESTS=test-vddk-real.sh +@CAN_TEST_ANSI_C_TRUE@test-ansi-c.sh: test-ansi-c-plugin.la +@HAVE_CXX_TRUE@test-cxx.sh: test-cxx-plugin.la test-cxx-filter.la +pki/.stamp: $(srcdir)/make-pki.sh + SRCDIR=$(srcdir) $(srcdir)/make-pki.sh +keys.psk: $(srcdir)/make-psk.sh + SRCDIR=$(srcdir) $(srcdir)/make-psk.sh +distclean-local: distclean-local-tls +distclean-local-tls: + rm -rf pki +@HAVE_PLUGINS_TRUE@file-data: generate-file-data.sh +@HAVE_PLUGINS_TRUE@ $(srcdir)/generate-file-data.sh $@ + +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@disk: +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ rm -f $@ $@-t +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ guestfish -N $@-t=fs:ext4:100M -m /dev/sda1 \ +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ write /hello.txt "hello,world" +@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ mv $@-t $@ + 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+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@stamp-ssh-host-key: +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ rm -f $@ +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ rm -f ssh/ssh_host_rsa_key +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ rm -f ssh/ssh_host_rsa_key.pub +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ ssh-keygen -t rsa -f ssh/ssh_host_rsa_key -N '' +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ touch $@ + +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ssh/authorized_keys: ssh/id_rsa.pub +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ rm -f $@ $@-t +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ cp $< $@-t +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ mv $@-t $@ + +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ssh/id_rsa ssh/id_rsa.pub: stamp-ssh-user-key +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@stamp-ssh-user-key: +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ rm -f $@ +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ rm -f ssh/id_rsa +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ rm -f ssh/id_rsa.pub +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ ssh-keygen -t rsa -f ssh/id_rsa -N '' +@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ touch $@ +@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@test-ocaml-plugin.so: test_ocaml_plugin.cmx ../plugins/ocaml/libnbdkitocaml.la ../plugins/ocaml/NBDKit.cmi ../plugins/ocaml/NBDKit.cmx +@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@ $(OCAMLOPT) $(OCAMLOPTFLAGS) -I ../plugins/ocaml \ +@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@ -output-obj -runtime-variant _pic -o $@ \ +@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@ NBDKit.cmx $< \ +@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@ -cclib -L../plugins/ocaml/.libs -cclib -lnbdkitocaml +@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@test_ocaml_plugin.cmx: test_ocaml_plugin.ml ../plugins/ocaml/NBDKit.cmi +@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@ $(OCAMLOPT) $(OCAMLOPTFLAGS) -I ../plugins/ocaml -c $< -o $@ + +@HAVE_PLUGINS_TRUE@test-shell.img: +@HAVE_PLUGINS_TRUE@ truncate -s 1048576 $@ + +@HAVE_PLUGINS_TRUE@offset-data: generate-offset-data.sh +@HAVE_PLUGINS_TRUE@ $(srcdir)/generate-offset-data.sh $@ + +@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@disk.xz: disk +@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@ rm -f $@ +# We choose a very small block size here only for testing. Normally +# you should choose a 16M block size. +@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@ xz --best --block-size=32768 -c disk > $@ + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/tests/README.tests b/tests/README.tests new file mode 100644 index 0000000..745ea0b --- /dev/null +++ b/tests/README.tests @@ -0,0 +1,31 @@ +The real tests use libguestfs as a convenient way to control the qemu +NBD client. + +To test a plugin using libguestfs: + + - #include <test.h> + + - Call: + + test_start_nbdkit ("plugin", <plugin args ...>, NULL) + + at the beginning. This starts the nbdkit server. + + - Open a libguestfs handle, and configure the NBD client using: + + guestfs_add_drive_opts (g, "", + GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw", + GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd", + GUESTFS_ADD_DRIVE_OPTS_SERVER, server, + -1); + + 'server' is a global that is initialized by 'test_start_nbdkit' and + points to the nbdkit server socket. + + - Perform tests via libguestfs using the libguestfs device "/dev/sda", + which corresponds to the NBD drive exposed by the plugin. + + - Close the handle and exit. An 'atexit' handler installed by + 'test_start_nbdkit' cleans up the server automatically. + +For an example, see 'test-file.c'. diff --git a/tests/dummy-vddk.c b/tests/dummy-vddk.c new file mode 100644 index 0000000..7e9f973 --- /dev/null +++ b/tests/dummy-vddk.c @@ -0,0 +1,74 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* This file pretends to be libvixDiskLib.so.6. + * + * However it only implements --dump-plugin support so our stubs don't + * need to do anything. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> + +#include "vddk-structs.h" + +VixError +VixDiskLib_InitEx (uint32_t major, uint32_t minor, + VixDiskLibGenericLogFunc *log_function, + VixDiskLibGenericLogFunc *warn_function, + VixDiskLibGenericLogFunc *panic_function, + const char *lib_dir, const char *config_file) +{ + /* Do nothing, only exit with no error. */ + return VIX_OK; +} + +void +VixDiskLib_Exit (void) +{ + /* Do nothing. */ +} + +#define STUB(fn) void fn (void) { abort (); } +STUB (VixDiskLib_GetErrorText) +STUB (VixDiskLib_FreeErrorText) +STUB (VixDiskLib_ConnectEx) +STUB (VixDiskLib_Open) +STUB (VixDiskLib_GetTransportMode) +STUB (VixDiskLib_Close) +STUB (VixDiskLib_Disconnect) +STUB (VixDiskLib_GetInfo) +STUB (VixDiskLib_FreeInfo) +STUB (VixDiskLib_Read) +STUB (VixDiskLib_Write) +STUB (VixDiskLib_FreeConnectParams) diff --git a/tests/functions.sh.in b/tests/functions.sh.in new file mode 100644 index 0000000..5061ebc --- /dev/null +++ b/tests/functions.sh.in @@ -0,0 +1,148 @@ +# nbdkit +# Common functions used by the tests. +# @configure_input@ +# Copyright (C) 2017-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# cleanup_fn f [args] +# +# A generic trap handling function. This runs the function or command +# f plus optional args when the script exits for any reason. +declare -a _cleanup_hook +cleanup_fn () +{ + _cleanup_hook[${#_cleanup_hook[@]}]="$@" +} + +_run_cleanup_hooks () +{ + status=$? + set +e + trap '' INT QUIT TERM EXIT ERR + echo $0: run cleanup hooks: exit code $status + + for (( i = 0; i < ${#_cleanup_hook[@]}; ++i )); do + ${_cleanup_hook[i]} + done + + exit $status +} +trap _run_cleanup_hooks INT QUIT TERM EXIT ERR + +# requires program [args] +# +# Check that ‘program [args]’ works. If not, skip the test. +# For example to check that qemu-img is available, do: +# +# requires qemu-img --version +requires () +{ + ( "$@" ) </dev/null >/dev/null 2>&1 || { + echo "$0: ‘$*’ failed with error code $?" + echo "$0: test prerequisite is missing or not working" + exit 77 + } +} + +# start_nbdkit -P pidfile args... +# +# Run nbdkit with args and wait for it to start up. If it fails to +# start up, exit with an error message. Also a cleanup handler is +# installed automatically which kills nbdkit on exit. +start_nbdkit () +{ + # -P <pidfile> must be the first two parameters. + if [ "$1" != "-P" ]; then + echo "$0: start_nbdkit: -P <pidfile> option must be first" + exit 1 + fi + pidfile="$2" + + # Run nbdkit. + nbdkit -v "$@" + + # Wait for the pidfile to appear. + for i in {1..60}; do + if test -f "$pidfile"; then + break + fi + sleep 1 + done + if ! test -f "$pidfile"; then + echo "$0: start_nbdkit: PID file $pidfile was not created" + exit 1 + fi + + # Kill nbdkit on exit. + cleanup_fn kill "$(cat "$pidfile")" +} + +# foreach_plugin f [args] +# +# For each plugin that was built, run the function or command f with +# the plugin name as the first argument, optionally followed by the +# remaining args. +foreach_plugin () +{ + f="$1" + shift + + for p in @plugins@; do + # Was the plugin built? + d="@top_builddir@/plugins/$p" + if [ -f "$d/.libs/nbdkit-$p-plugin.so" ] || + [ -f "$d/nbdkit-$p-plugin" ]; then + # Yes so run the test. + "$f" "$p" "$@" + fi + done +} + +# pick_unused_port +# +# Picks and returns an "unused" port, setting the global variable +# $port. +# +# This is inherently racy so we only use it where it's absolutely +# necessary (eg. testing TLS because qemu cannot do TLS over a Unix +# domain socket). +pick_unused_port () +{ + requires ss --version + + # Start at a random port to make it less likely that two parallel + # tests will conflict. + port=$(( 50000 + (RANDOM%15000) )) + while ss -ltn | grep -sqE ":$port\b"; do + ((port++)) + if [ $port -eq 65000 ]; then port=50000; fi + done + echo picked unused port $port +} diff --git a/tests/generate-file-data.sh b/tests/generate-file-data.sh new file mode 100755 index 0000000..6757dad --- /dev/null +++ b/tests/generate-file-data.sh @@ -0,0 +1,40 @@ +#!/usr/bin/env bash +# Copyright (C) 2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +set -e + +rm -f $1-t $1 + +for f in {1..512}; do + echo -ne '\x01\x02\x03\x04\x05\x06\x07\x08' +done > $1-t + +mv $1-t $1 diff --git a/tests/generate-offset-data.sh b/tests/generate-offset-data.sh new file mode 100755 index 0000000..f3b7013 --- /dev/null +++ b/tests/generate-offset-data.sh @@ -0,0 +1,40 @@ +#!/usr/bin/env bash +# Copyright (C) 2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +set -e + +rm -f $1-t $1 + +for f in {1..1048576}; do + echo -ne '\x55\xAA\x55\xAA\x55\xAA\x55\xAA\x55\xAA' +done > $1-t + +mv $1-t $1 diff --git a/tests/make-pki.sh b/tests/make-pki.sh new file mode 100755 index 0000000..9938b1d --- /dev/null +++ b/tests/make-pki.sh @@ -0,0 +1,110 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2017 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +set -e + +# This creates the PKI files for the TLS tests. However if certtool +# doesn't exist, just create an empty directory instead. + +if [ -z "$SRCDIR" ] || [ ! -f "$SRCDIR/test-tls.sh" ]; then + echo "$0: script is being run from the wrong directory." + echo "Don't try to run this script by hand." + exit 1 +fi + +rm -rf pki pki-t + +mkdir pki-t + +if ! certtool --help >/dev/null 2>&1; then + echo "$0: certtool not found, TLS tests will be skipped." + touch pki-t/.stamp + mv pki-t pki + exit 0 +fi + +# Create the CA. +certtool --generate-privkey > pki-t/ca-key.pem +chmod 0600 pki-t/ca-key.pem + +cat > pki-t/ca.info <<EOF +cn = Test +ca +cert_signing_key +EOF +certtool --generate-self-signed \ + --load-privkey pki-t/ca-key.pem \ + --template pki-t/ca.info \ + --outfile pki-t/ca-cert.pem + +# Create the server certificate and key. +certtool --generate-privkey > pki-t/server-key.pem +chmod 0600 pki-t/server-key.pem + +cat > pki-t/server.info <<EOF +organization = Test +cn = localhost +tls_www_server +encryption_key +signing_key +EOF +certtool --generate-certificate \ + --load-ca-certificate pki-t/ca-cert.pem \ + --load-ca-privkey pki-t/ca-key.pem \ + --load-privkey pki-t/server-key.pem \ + --template pki-t/server.info \ + --outfile pki-t/server-cert.pem + +# Create a client certificate and key. +certtool --generate-privkey > pki-t/client-key.pem +chmod 0600 pki-t/client-key.pem + +cat > pki-t/client.info <<EOF +country = US +state = New York +locality = New York +organization = Test +cn = localhost +tls_www_client +encryption_key +signing_key +EOF +certtool --generate-certificate \ + --load-ca-certificate pki-t/ca-cert.pem \ + --load-ca-privkey pki-t/ca-key.pem \ + --load-privkey pki-t/client-key.pem \ + --template pki-t/client.info \ + --outfile pki-t/client-cert.pem + +# Finish off. +touch pki-t/.stamp +mv pki-t pki diff --git a/tests/make-psk.sh b/tests/make-psk.sh new file mode 100755 index 0000000..178f4be --- /dev/null +++ b/tests/make-psk.sh @@ -0,0 +1,53 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +set -e + +# This creates the PSK keys for the TLS-PSK tests. However if pkstool +# doesn't exist, just create an empty directory instead. + +if [ -z "$SRCDIR" ] || [ ! -f "$SRCDIR/test-tls-psk.sh" ]; then + echo "$0: script is being run from the wrong directory." + echo "Don't try to run this script by hand." + exit 1 +fi + +rm -f keys.psk + +if ! psktool --help >/dev/null 2>&1; then + echo "$0: psktool not found, TLS-PSK tests will be skipped." + touch keys.psk + exit 0 +fi + +# Create the keys file. +psktool -u qemu -p keys.psk diff --git a/tests/python-exception.py b/tests/python-exception.py new file mode 100644 index 0000000..d0c79bb --- /dev/null +++ b/tests/python-exception.py @@ -0,0 +1,66 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# A dummy python plugin which just raises an exception in config_complete. + +test = "simple" + +def config(k, v): + global test + if k == "test": + test = v + else: + raise RuntimeError("unknown config parameter") + +def raise_error2(): + raise RuntimeError("this is the test string") + +def raise_error1(): + raise_error2() + +def config_complete(): + if test == "simple": + raise RuntimeError("this is the test string") + elif test == "traceback": + raise_error1() + else: + raise RuntimeError("unknown test") + +def open(readonly): + return 1 + + +def get_size(h): + return 0 + + +def pread(h, count, offset): + return "" diff --git a/tests/shebang.pl b/tests/shebang.pl new file mode 100755 index 0000000..17c7821 --- /dev/null +++ b/tests/shebang.pl @@ -0,0 +1,31 @@ +#!../nbdkit perl + +use strict; + +my $disk = "\0" x (1024*1024); + +sub open +{ + my $readonly = shift; + my $h = { readonly => $readonly }; + return $h; +} + +sub close +{ + my $h = shift; +} + +sub get_size +{ + my $h = shift; + return length ($disk); +} + +sub pread +{ + my $h = shift; + my $count = shift; + my $offset = shift; + return substr ($disk, $offset, $count); +} diff --git a/tests/shebang.py b/tests/shebang.py new file mode 100755 index 0000000..6f33623 --- /dev/null +++ b/tests/shebang.py @@ -0,0 +1,18 @@ +#!../nbdkit python + +disk = bytearray(1024 * 1024) + + +def open(readonly): + print("open: readonly=%d" % readonly) + return 1 + + +def get_size(h): + global disk + return len(disk) + + +def pread(h, count, offset): + global disk + return disk[offset:offset+count] diff --git a/tests/shebang.rb b/tests/shebang.rb new file mode 100755 index 0000000..34588d1 --- /dev/null +++ b/tests/shebang.rb @@ -0,0 +1,18 @@ +#!../nbdkit ruby + +include Nbdkit + +$disk = "\0" * (1024 * 1024) + +def open(readonly) + h = {} + return h +end + +def get_size(h) + return $disk.bytesize +end + +def pread(h, count, offset) + return $disk.byteslice(offset, count) +end diff --git a/tests/ssh/sshd_config.in b/tests/ssh/sshd_config.in new file mode 100644 index 0000000..59343c5 --- /dev/null +++ b/tests/ssh/sshd_config.in @@ -0,0 +1,55 @@ +# nbdkit sshd_config used by test-ssh.sh. +# Copyright (C) 2014-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Minimal sshd_config used by test-ssh.sh when it runs +# a captive sshd. This file is processed by $(SED). + +# Choose a random high port number. +Port __RANDOM_PORT__ + +# Only allow connections from loopback. +ListenAddress [::1] +ListenAddress 127.0.0.1 + +# Privilege separation breaks non-root usage of sshd. +UsePrivilegeSeparation no + +# Use local files instead of inaccessible global configuration. +PidFile __abs_builddir__/ssh/sshd.pid +HostKey __abs_builddir__/ssh/ssh_host_rsa_key + +AuthorizedKeysFile __abs_builddir__/ssh/authorized_keys + +# Don't check file permissions. +StrictModes no + +# Allow the environment to be set in the authorized_keys file above. +PermitUserEnvironment yes diff --git a/tests/test-ansi-c-plugin.c b/tests/test-ansi-c-plugin.c new file mode 100644 index 0000000..ff0b34d --- /dev/null +++ b/tests/test-ansi-c-plugin.c @@ -0,0 +1,164 @@ +/* nbdkit + * Copyright (C) 2013-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include <nbdkit-plugin.h> + +/* This looks like a 100MB disk with one empty partition. */ +static unsigned char bootsector[512] = { + 0xfa, 0xb8, 0x00, 0x10, 0x8e, 0xd0, 0xbc, 0x00, + 0xb0, 0xb8, 0x00, 0x00, 0x8e, 0xd8, 0x8e, 0xc0, + 0xfb, 0xbe, 0x00, 0x7c, 0xbf, 0x00, 0x06, 0xb9, + 0x00, 0x02, 0xf3, 0xa4, 0xea, 0x21, 0x06, 0x00, + 0x00, 0xbe, 0xbe, 0x07, 0x38, 0x04, 0x75, 0x0b, + 0x83, 0xc6, 0x10, 0x81, 0xfe, 0xfe, 0x07, 0x75, + 0xf3, 0xeb, 0x16, 0xb4, 0x02, 0xb0, 0x01, 0xbb, + 0x00, 0x7c, 0xb2, 0x80, 0x8a, 0x74, 0x01, 0x8b, + 0x4c, 0x02, 0xcd, 0x13, 0xea, 0x00, 0x7c, 0x00, + 0x00, 0xeb, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0xe1, 0x5b, 0x02, 0x00, 0x00, 0x00, 0x00, 0x02, + 0x03, 0x00, 0x83, 0xbc, 0x31, 0x0c, 0x80, 0x00, + 0x00, 0x00, 0x01, 0x1f, 0x03, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0xaa +}; +static unsigned char data[104857600]; + +static void +ansi_c_load (void) +{ + memcpy (data, bootsector, sizeof bootsector); +} + +static void * +ansi_c_open (int readonly) +{ + return NBDKIT_HANDLE_NOT_NEEDED; +} + +static int64_t +ansi_c_get_size (void *handle) +{ + return (int64_t) sizeof (data); +} + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS + +static int +ansi_c_pread (void *handle, void *buf, uint32_t count, uint64_t offset) +{ + memcpy (buf, data+offset, count); + return 0; +} + +/* Strictly speaking (and we're compiling with -pedantic, so we _are_ + * "strictly speaking"), ANSI C did not allow struct initialization + * using labels. However it was a common extension to C compilers of + * the period. + * + * Therefore we rely here on the order of fields in struct + * nbdkit_plugin. But that's OK because of nbdkit's stable ABI + * guarantee. + * + * If you are really writing an nbdkit plugin which can only use C90 + * then you are advised to find the extension to your compiler which + * allows you to initialize named fields. + */ +static struct nbdkit_plugin plugin = { + 0, 0, 0, /* _struct_size, _api_version, _thread_model */ + "ansic", + NULL, /* longname */ + "1.0", + NULL, /* description */ + ansi_c_load, + NULL, /* unload */ + NULL, NULL, NULL, /* config, config_complete, config_help */ + ansi_c_open, + NULL, /* close */ + ansi_c_get_size, + NULL, NULL, NULL, NULL, /* can_write, can_flush, is_rotational, can_trim */ + ansi_c_pread +}; + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/tests/test-ansi-c.sh b/tests/test-ansi-c.sh new file mode 100755 index 0000000..65ecebb --- /dev/null +++ b/tests/test-ansi-c.sh @@ -0,0 +1,39 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2017-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e + +# We only really care that the plugin compiled, so we don't +# need to run it properly. +libs=./.libs +nbdkit $libs/test-ansi-c-plugin.so --version diff --git a/tests/test-blocksize.sh b/tests/test-blocksize.sh new file mode 100755 index 0000000..4e6dbe5 --- /dev/null +++ b/tests/test-blocksize.sh @@ -0,0 +1,131 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e + +sock1=`mktemp -u` +sock2=`mktemp -u` +files="blocksize1.img blocksize1.log $sock1 blocksize1.pid + blocksize2.img blocksize2.log $sock2 blocksize2.pid" +rm -f $files + +# Prep images, and check that qemu-io understands the actions we plan on doing. +# TODO: Until we implement NBD_INFO_BLOCK_SIZE, qemu-io does its own +# read-modify-write at 512-byte alignment, while we'd like to ultimately test +# 1-byte accesses +truncate -s 10M blocksize1.img +if ! qemu-io -f raw -c 'r 0 1' -c 'w -z 1000 2000' \ + -c 'w -P 0 1M 2M' -c 'discard 3M 4M' blocksize1.img; then + echo "$0: missing or broken qemu-io" + rm blocksize1.img + exit 77 +fi +truncate -s 10M blocksize2.img + +# For easier debugging, dump the final log files before removing them +# on exit. +cleanup () +{ + echo "Log 1 file contents:" + cat blocksize1.log || : + echo "Log 2 file contents:" + cat blocksize2.log || : + rm -f $files +} +cleanup_fn cleanup + +# Run two parallel nbdkit; to compare the logs and see what changes. +start_nbdkit -P blocksize1.pid -U $sock1 \ + --filter=log file logfile=blocksize1.log blocksize1.img +start_nbdkit -P blocksize2.pid -U $sock2 --filter=blocksize \ + --filter=log file logfile=blocksize2.log blocksize2.img \ + minblock=1024 maxdata=512k maxlen=1M + +# Test behavior on short accesses. +qemu-io -f raw -c 'r 1 1' -c 'w 10001 1' -c 'w -z 20001 1' \ + -c 'discard 30001 1' "nbd+unix://?socket=$sock1" +qemu-io -f raw -c 'r 1 1' -c 'w 10001 1' -c 'w -z 20001 1' \ + -c 'discard 30001 1' "nbd+unix://?socket=$sock2" + +# Read should round up (qemu-io may round to 512, but we must round to 1024 +grep 'connection=1 Read .* count=0x\(1\|200\) ' blocksize1.log || + { echo "qemu-io can't pass 1-byte reads"; exit 77; } +grep 'connection=1 Read .* offset=0x0 count=0x400 ' blocksize2.log +# Write should become read-modify-write +grep 'connection=1 Write .* count=0x\(1\|200\) ' blocksize1.log || + { echo "qemu-io can't pass 1-byte writes"; exit 77; } +grep 'connection=1 Read .* offset=0x2400 count=0x400 ' blocksize2.log +grep 'connection=1 Write .* offset=0x2400 count=0x400 ' blocksize2.log +# Zero should become read-modify-write +if grep 'connection=1 Zero' blocksize2.log; then + echo "filter should have converted short zero to write" + exit 1 +fi +grep 'connection=1 Read .* offset=0x4c00 count=0x400 ' blocksize2.log +grep 'connection=1 Write .* offset=0x4c00 count=0x400 ' blocksize2.log +# Trim should be discarded +if grep 'connection=1 Trim' blocksize2.log; then + echo "filter should have dropped too-small trim" + exit 1 +fi + +# Test behavior on overlarge accesses. +qemu-io -f raw -c 'w -P 11 1048575 4094305' -c 'w -z 1050000 1100000' \ + -c 'r -P 0 1050000 1100000' -c 'r -P 11 3000000 1048577' \ + -c 'discard 7340031 2097153' "nbd+unix://?socket=$sock1" +qemu-io -f raw -c 'w -P 11 1048575 4094305' -c 'w -z 1050000 1100000' \ + -c 'r -P 0 1050000 1100000' -c 'r -P 11 3000000 1048577' \ + -c 'discard 7340031 2097153' "nbd+unix://?socket=$sock2" + +# Reads and writes should have been split. +test "$(grep -c '\(Read\|Write\) .*count=0x80000 ' blocksize2.log)" -ge 10 +test "$(grep -c '\(Read\|Write\) .*count=0x[0-9a-f]\{6\} ' blocksize2.log)" = 0 +# Zero and trim should be split, but at different boundary +grep 'Zero .*count=0x100000 ' blocksize2.log +test "$(grep -c 'connection=2 Zero' blocksize2.log)" = 2 +if grep Trim blocksize1.log; then + test "$(grep -c 'connection=2 Trim .*count=0x100000 ' blocksize2.log)" = 2 +fi + +# Final sanity checks. +if grep 'offset=0x[0-9a-f]*\([1235679abdef]00\|[0-9a-f]\(.[^0]\|[^0].\)\) ' \ + blocksize2.log; then + echo "filter didn't align offset to 1024"; + exit 1; +fi +if grep 'count=0x[0-9a-f]*\([1235679abdef]00\|[0-9a-f]\(.[^0]\|[^0].\)\) ' \ + blocksize2.log; then + echo"filter didn't align count to 512"; + exit 1; +fi +diff -u blocksize1.img blocksize2.img diff --git a/tests/test-cache-max-size.sh b/tests/test-cache-max-size.sh new file mode 100755 index 0000000..409a792 --- /dev/null +++ b/tests/test-cache-max-size.sh @@ -0,0 +1,85 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +# Check that this is a Linux-like system supporting /proc/$pid/fd. +requires test -d /proc/self/fd +requires qemu-io --version +# Need the stat command from coreutils. +requires stat --version + +sock=`mktemp -u` +d=cache-max-size.d +rm -rf $d +mkdir -p $d +cleanup_fn rm -rf $d +cleanup_fn rm -f $sock + +# Create a cache directory. +mkdir $d/cache +TMPDIR=$d/cache +export TMPDIR + +# Create an empty base image. +truncate -s 1G $d/cache-max-size.img + +# Run nbdkit with the caching filter and a low size limit to ensure +# that the reclaim code is exercised. +start_nbdkit -P $d/cache-max-size.pid -U $sock \ + --filter=cache \ + file $d/cache-max-size.img \ + cache-max-size=10M cache-on-read=true + +# Write > 10M to the plugin. +qemu-io -f raw "nbd+unix://?socket=$sock" \ + -c "w -P 0 0 10M" \ + -c "w -P 0 20M 10M" \ + -c "r 20M 10M" \ + -c "r 30M 10M" \ + -c "w -P 0 40M 10M" + +# We can't use ‘du’ on the cache directory because the cache file is +# deleted by the filter, and so is only accessible via /proc/$pid/fd. +# Get the /proc link to the cache file, and the size of it in bytes. +fddir="/proc/$( cat $d/cache-max-size.pid )/fd" +ls -l $fddir ||: +fd="$fddir/$( ls -l $fddir | grep $TMPDIR | head -1 | awk '{print $9}' )" +stat -L $fd +size=$(( $(stat -L -c '%b * %B' $fd) )) + +if [ "$size" -gt $(( 11 * 1024 * 1024 )) ]; then + echo "$0: cache size is larger than 10M (actual size: $size bytes)" + exit 1 +fi diff --git a/tests/test-cache-on-read.sh b/tests/test-cache-on-read.sh new file mode 100755 index 0000000..8ffc010 --- /dev/null +++ b/tests/test-cache-on-read.sh @@ -0,0 +1,70 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# XXX Suggestion to improve this test: Use the delay filter below the +# cache filter, and time reads to prove that the second read is faster +# because it isn't going through the delay filter and plugin. + +source ./functions.sh +set -e +set -x + +sock=`mktemp -u` +files="cache-on-read.img $sock cache-on-read.pid" +rm -f $files +cleanup_fn rm -f $files + +# Create an empty base image. +truncate -s 1G cache-on-read.img + +# Run nbdkit with the caching filter and cache-on-read set. +start_nbdkit -P cache-on-read.pid -U $sock \ + --filter=cache \ + file cache-on-read.img \ + cache-on-read=true + +# Open the overlay and perform some operations. +guestfish --format=raw -a "nbd://?socket=$sock" <<'EOF' + run + part-disk /dev/sda gpt + mkfs ext4 /dev/sda1 + mount /dev/sda1 / + fill-dir / 10000 + fill-pattern "abcde" 5M /large + write /hello "hello, world" +EOF + +# Check the last files we created exist. +guestfish --ro -a cache-on-read.img -m /dev/sda1 <<'EOF' + cat /hello + cat /large | cat >/dev/null +EOF diff --git a/tests/test-cache.sh b/tests/test-cache.sh new file mode 100755 index 0000000..2ed86dc --- /dev/null +++ b/tests/test-cache.sh @@ -0,0 +1,63 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +sock=`mktemp -u` +files="cache.img $sock cache.pid" +rm -f $files +cleanup_fn rm -f $files + +# Create an empty base image. +truncate -s 1G cache.img + +# Run nbdkit with the caching filter. +start_nbdkit -P cache.pid -U $sock --filter=cache file cache.img + +# Open the overlay and perform some operations. +guestfish --format=raw -a "nbd://?socket=$sock" <<'EOF' + run + part-disk /dev/sda gpt + mkfs ext4 /dev/sda1 + mount /dev/sda1 / + fill-dir / 10000 + fill-pattern "abcde" 5M /large + write /hello "hello, world" +EOF + +# Check the last files we created exist. +guestfish --ro -a cache.img -m /dev/sda1 <<'EOF' + cat /hello + cat /large | cat >/dev/null +EOF diff --git a/tests/test-captive.sh b/tests/test-captive.sh new file mode 100755 index 0000000..e89c387 --- /dev/null +++ b/tests/test-captive.sh @@ -0,0 +1,55 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2014-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +# Test nbdkit --run (captive nbdkit) option. + +sock=`mktemp -u` +files="$sock captive.out" +rm -f $files +cleanup_fn rm -f $files + +nbdkit -U $sock example1 --run ' + sleep 5; echo nbd=$nbd; echo port=$port; echo socket=$unixsocket + ' > captive.out + +# Check the output. +if [ "$(cat captive.out)" != "nbd=nbd:unix:$sock +port= +socket=$sock" ]; then + echo "$0: unexpected output" + cat captive.out + exit 1 +fi diff --git a/tests/test-connect.c b/tests/test-connect.c new file mode 100644 index 0000000..dccd99e --- /dev/null +++ b/tests/test-connect.c @@ -0,0 +1,106 @@ +/* nbdkit + * Copyright (C) 2013 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> + +#include <guestfs.h> + +#include "test.h" + +int +main (int argc, char *argv[]) +{ + guestfs_h *g; + int r; + int64_t size; + char **parts; + size_t i; + + if (test_start_nbdkit ("example1", NULL) == -1) + exit (EXIT_FAILURE); + + g = guestfs_create (); + if (g == NULL) { + perror ("guestfs_create"); + exit (EXIT_FAILURE); + } + + r = guestfs_add_drive_opts (g, "", + GUESTFS_ADD_DRIVE_OPTS_READONLY, 1, + GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw", + GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd", + GUESTFS_ADD_DRIVE_OPTS_SERVER, server, + -1); + if (r == -1) + exit (EXIT_FAILURE); + + if (guestfs_launch (g) == -1) + exit (EXIT_FAILURE); + + /* The example1 plugin makes a static virtual disk which is 100 MB + * in size and has one empty partition. Check this. + */ + size = guestfs_blockdev_getsize64 (g, "/dev/sda"); + if (size == -1) + exit (EXIT_FAILURE); + if (size != 104857600) { + fprintf (stderr, + "%s FAILED: incorrect disk size (actual: %" PRIi64 + ", expected: 104857600)\n", program_name, size); + exit (EXIT_FAILURE); + } + + parts = guestfs_list_partitions (g); + if (!parts) + exit (EXIT_FAILURE); + if (parts[0] == NULL || parts[1] != NULL || + strcmp (parts[0], "/dev/sda1") != 0) { + fprintf (stderr, + "%s FAILED: incorrect result from guestfs_list_partitions\n", + program_name); + exit (EXIT_FAILURE); + } + + for (i = 0; parts[i] != NULL; ++i) + free (parts[i]); + free (parts); + + guestfs_close (g); + exit (EXIT_SUCCESS); +} diff --git a/tests/test-cow.sh b/tests/test-cow.sh new file mode 100755 index 0000000..cd58f56 --- /dev/null +++ b/tests/test-cow.sh @@ -0,0 +1,73 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +sock=`mktemp -u` +files="cow-base.img cow-diff.qcow2 $sock cow.pid" +rm -f $files +cleanup_fn rm -f $files + +# Create a base image which is partitioned with an empty filesystem. +guestfish -N cow-base.img=fs exit +lastmod="$(stat -c "%y" cow-base.img)" + +# Run nbdkit with a COW overlay. +start_nbdkit -P cow.pid -U $sock --filter=cow file cow-base.img + +# Write some data into the overlay. +guestfish --format=raw -a "nbd://?socket=$sock" -m /dev/sda1 <<EOF + fill-dir / 10000 + fill-pattern "abcde" 5M /large + write /hello "hello, world" +EOF + +# The original file must not be modified. +currmod="$(stat -c "%y" cow-base.img)" + +if [ "$lastmod" != "$currmod" ]; then + echo "$0: FAILED last modified time of base file changed" + exit 1 +fi + +# If we have qemu-img, try the hairy rebase operation documented +# in the nbdkit-cow-filter manual. +if qemu-img --version >/dev/null 2>&1; then + qemu-img create -f qcow2 -b nbd:unix:$sock cow-diff.qcow2 + time qemu-img rebase -b cow-base.img cow-diff.qcow2 + qemu-img info cow-diff.qcow2 + + # This checks the file we created exists. + guestfish --ro -a cow-diff.qcow2 -m /dev/sda1 cat /hello +fi diff --git a/tests/test-curl.c b/tests/test-curl.c new file mode 100644 index 0000000..5de8104 --- /dev/null +++ b/tests/test-curl.c @@ -0,0 +1,117 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdbool.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> + +#include <guestfs.h> + +#include "web-server.h" + +#include "test.h" + +int +main (int argc, char *argv[]) +{ + const char *sockpath; + size_t n; + guestfs_h *g; + int r; + char *data; + +#ifndef HAVE_CURLOPT_UNIX_SOCKET_PATH + fprintf (stderr, "%s: curl does not support CURLOPT_UNIX_SOCKET_PATH\n", + program_name); + exit (77); +#endif + + sockpath = web_server ("disk"); + if (sockpath == NULL) { + fprintf (stderr, "%s: could not start web server thread\n", program_name); + exit (EXIT_FAILURE); + } + + /* Start nbdkit. */ + n = strlen ("unix-socket-path") + 1 + strlen (sockpath) + 1; + char usp_param[n]; + snprintf (usp_param, n, "%s=%s", "unix-socket-path", sockpath); + if (test_start_nbdkit ("curl", + "cookie=foo=bar; baz=1;", + usp_param, /* unix-socket-path=... */ + "http://localhost/disk", + NULL) == -1) + exit (EXIT_FAILURE); + + g = guestfs_create (); + if (g == NULL) { + perror ("guestfs_create"); + exit (EXIT_FAILURE); + } + + r = guestfs_add_drive_opts (g, "", + GUESTFS_ADD_DRIVE_OPTS_READONLY, 1, + GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw", + GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd", + GUESTFS_ADD_DRIVE_OPTS_SERVER, server, + -1); + if (r == -1) + exit (EXIT_FAILURE); + + if (guestfs_launch (g) == -1) + exit (EXIT_FAILURE); + + /* 'disk' contains one partition and a test file called "hello.txt" */ + if (guestfs_mount_ro (g, "/dev/sda1", "/") == -1) + exit (EXIT_FAILURE); + + data = guestfs_cat (g, "/hello.txt"); + if (!data) + exit (EXIT_FAILURE); + + if (strcmp (data, "hello,world") != 0) { + fprintf (stderr, + "%s FAILED: unexpected content of /hello.txt file " + "(actual: %s, expected: \"hello,world\")\n", + program_name, data); + exit (EXIT_FAILURE); + } + + guestfs_close (g); + exit (EXIT_SUCCESS); +} diff --git a/tests/test-cxx-filter.cpp b/tests/test-cxx-filter.cpp new file mode 100644 index 0000000..ba5ff29 --- /dev/null +++ b/tests/test-cxx-filter.cpp @@ -0,0 +1,58 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef __cplusplus +#error "this test should be compiled with a C++ compiler" +#endif + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include <nbdkit-filter.h> + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + +/* https://bugzilla.redhat.com/show_bug.cgi?id=1418328#c9 */ +namespace { + nbdkit_filter create_filter() { + nbdkit_filter filter = nbdkit_filter (); + filter.name = "cxxfilter"; + filter.version = PACKAGE_VERSION; + return filter; + } +} +static struct nbdkit_filter filter = create_filter (); + +NBDKIT_REGISTER_FILTER(filter) diff --git a/tests/test-cxx-plugin.cpp b/tests/test-cxx-plugin.cpp new file mode 100644 index 0000000..514b6be --- /dev/null +++ b/tests/test-cxx-plugin.cpp @@ -0,0 +1,156 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef __cplusplus +#error "this test should be compiled with a C++ compiler" +#endif + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include <nbdkit-plugin.h> + +/* This looks like a 100MB disk with one empty partition. */ +static unsigned char bootsector[512] = { + 0xfa, 0xb8, 0x00, 0x10, 0x8e, 0xd0, 0xbc, 0x00, + 0xb0, 0xb8, 0x00, 0x00, 0x8e, 0xd8, 0x8e, 0xc0, + 0xfb, 0xbe, 0x00, 0x7c, 0xbf, 0x00, 0x06, 0xb9, + 0x00, 0x02, 0xf3, 0xa4, 0xea, 0x21, 0x06, 0x00, + 0x00, 0xbe, 0xbe, 0x07, 0x38, 0x04, 0x75, 0x0b, + 0x83, 0xc6, 0x10, 0x81, 0xfe, 0xfe, 0x07, 0x75, + 0xf3, 0xeb, 0x16, 0xb4, 0x02, 0xb0, 0x01, 0xbb, + 0x00, 0x7c, 0xb2, 0x80, 0x8a, 0x74, 0x01, 0x8b, + 0x4c, 0x02, 0xcd, 0x13, 0xea, 0x00, 0x7c, 0x00, + 0x00, 0xeb, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0xe1, 0x5b, 0x02, 0x00, 0x00, 0x00, 0x00, 0x02, + 0x03, 0x00, 0x83, 0xbc, 0x31, 0x0c, 0x80, 0x00, + 0x00, 0x00, 0x01, 0x1f, 0x03, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0xaa +}; +static unsigned char data[104857600]; + +static void +cxx_load (void) +{ + memcpy (data, bootsector, sizeof bootsector); +} + +static void * +cxx_open (int readonly) +{ + return NBDKIT_HANDLE_NOT_NEEDED; +} + +static int64_t +cxx_get_size (void *handle) +{ + return (int64_t) sizeof (data); +} + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS + +static int +cxx_pread (void *handle, void *buf, uint32_t count, uint64_t offset) +{ + memcpy (buf, data+offset, count); + return 0; +} + +/* https://bugzilla.redhat.com/show_bug.cgi?id=1418328#c9 */ +namespace { + nbdkit_plugin create_plugin() { + nbdkit_plugin plugin = nbdkit_plugin (); + plugin.name = "cxx"; + plugin.version = PACKAGE_VERSION; + plugin.load = cxx_load; + plugin.open = cxx_open; + plugin.get_size = cxx_get_size; + plugin.pread = cxx_pread; + return plugin; + } +} +static struct nbdkit_plugin plugin = create_plugin (); + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/tests/test-cxx.sh b/tests/test-cxx.sh new file mode 100755 index 0000000..624da6b --- /dev/null +++ b/tests/test-cxx.sh @@ -0,0 +1,39 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2017-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e + +# We only really care that the plugin compiled, so we don't +# need to run it properly. +libs=./.libs +nbdkit --filter=$libs/test-cxx-filter.so $libs/test-cxx-plugin.so --version diff --git a/tests/test-data-7E.sh b/tests/test-data-7E.sh new file mode 100755 index 0000000..5b1040f --- /dev/null +++ b/tests/test-data-7E.sh @@ -0,0 +1,96 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Test the data plugin creating a 7 EB partitioned disk, and +# the partition filter on top. + +source ./functions.sh +set -e +set -x + +requires qemu-io --version + +sock=`mktemp -u` +files="data-7E.out data-7E.pid $sock" +rm -f $files +cleanup_fn rm -f $files + +# Run nbdkit. +start_nbdkit -P data-7E.pid -U $sock --export= \ + --filter=partition \ + data size=7E partition=1 \ + data=" + @0x1c0 2 0 0xee 0xfe 0xff 0xff 0x01 0 0 0 0xff 0xff 0xff 0xff + @0x1fe 0x55 0xaa + @0x200 0x45 0x46 0x49 0x20 0x50 0x41 0x52 0x54 + 0 0 1 0 0x5c 0 0 0 + 0x9b 0xe5 0x6a 0xc5 0 0 0 0 1 0 0 0 0 0 0 0 + 0xff 0xff 0xff 0xff 0xff 0xff 0x37 0 0x22 0 0 0 0 0 0 0 + 0xde 0xff 0xff 0xff 0xff 0xff 0x37 0 + 0x72 0xb6 0x9e 0x0c 0x6b 0x76 0xb0 0x4f + 0xb3 0x94 0xb2 0xf1 0x61 0xec 0xdd 0x3c 2 0 0 0 0 0 0 0 + 0x80 0 0 0 0x80 0 0 0 0x79 0x8a 0xd0 0x7e 0 0 0 0 + @0x400 0xaf 0x3d 0xc6 0x0f 0x83 0x84 0x72 0x47 + 0x8e 0x79 0x3d 0x69 0xd8 0x47 0x7d 0xe4 + 0xd5 0x19 0x46 0x95 0xe3 0x82 0xa8 0x4c + 0x95 0x82 0x7a 0xbe 0x1c 0xfc 0x62 0x90 + 0x80 0 0 0 0 0 0 0 0x80 0xff 0xff 0xff 0xff 0xff 0x37 0 + 0 0 0 0 0 0 0 0 0x70 0 0x31 0 0 0 0 0 + @0x6fffffffffffbe00 + 0xaf 0x3d 0xc6 0x0f 0x83 0x84 0x72 0x47 + 0x8e 0x79 0x3d 0x69 0xd8 0x47 0x7d 0xe4 + 0xd5 0x19 0x46 0x95 0xe3 0x82 0xa8 0x4c + 0x95 0x82 0x7a 0xbe 0x1c 0xfc 0x62 0x90 + 0x80 0 0 0 0 0 0 0 0x80 0xff 0xff 0xff 0xff 0xff 0x37 0 + 0 0 0 0 0 0 0 0 0x70 0 0x31 0 0 0 0 0 + @0x6ffffffffffffe00 + 0x45 0x46 0x49 0x20 0x50 0x41 0x52 0x54 + 0 0 1 0 0x5c 0 0 0 + 0x6c 0x76 0xa1 0xa0 0 0 0 0 + 0xff 0xff 0xff 0xff 0xff 0xff 0x37 0 + 1 0 0 0 0 0 0 0 0x22 0 0 0 0 0 0 0 + 0xde 0xff 0xff 0xff 0xff 0xff 0x37 0 + 0x72 0xb6 0x9e 0x0c 0x6b 0x76 0xb0 0x4f + 0xb3 0x94 0xb2 0xf1 0x61 0xec 0xdd 0x3c + 0xdf 0xff 0xff 0xff 0xff 0xff 0x37 0 + 0x80 0 0 0 0x80 0 0 0 0x79 0x8a 0xd0 0x7e 0 0 0 0 + " + +# Since we're reading the empty first partition, any read returns zeroes. +qemu-io -r -f raw "nbd+unix://?socket=$sock" \ + -c 'r -v 498 16' | grep -E '^[[:xdigit:]]+:' > data-7E.out +if [ "$(cat data-7E.out)" != "000001f2: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................" ] +then + echo "$0: unexpected pattern:" + cat data-7E.out + exit 1 +fi diff --git a/tests/test-data-base64.sh b/tests/test-data-base64.sh new file mode 100755 index 0000000..dbae7cf --- /dev/null +++ b/tests/test-data-base64.sh @@ -0,0 +1,94 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Test the data plugin with base64= parameter. + +source ./functions.sh +set -e +set -x + +requires qemu-io --version + +# Test if the base64 parameter is supported in this build. +if ! nbdkit data --dump-plugin | grep -sq "data_base64=yes"; then + echo "$0: base64 parameter is not supported in this build" + exit 77 +fi + +sock=`mktemp -u` +files="data-base64.out data-base64.pid $sock" +rm -f $files +cleanup_fn rm -f $files + +# Run nbdkit. +start_nbdkit -P data-base64.pid -U $sock \ + data base64=MTIz size=512 + +qemu-io -r -f raw "nbd+unix://?socket=$sock" \ + -c 'r -v 0 512' | grep -E '^[[:xdigit:]]+:' > data-base64.out +if [ "$(cat data-base64.out)" != "00000000: 31 32 33 00 00 00 00 00 00 00 00 00 00 00 00 00 123............. +00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +000000a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +000000b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +000000c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +000000d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +000000e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +000000f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000140: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000150: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000160: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000170: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000190: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +000001a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +000001b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +000001c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +000001d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +000001e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +000001f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................" ] +then + echo "$0: unexpected pattern:" + cat data-base64.out + exit 1 +fi diff --git a/tests/test-data-extents.sh b/tests/test-data-extents.sh new file mode 100755 index 0000000..da4062b --- /dev/null +++ b/tests/test-data-extents.sh @@ -0,0 +1,130 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Unfortunately the output of this test depends on the PAGE_SIZE +# defined in common/sparse/sparse.c and would change (breaking the +# test) if we ever changed that definition. + +source ./functions.sh +set -e +set -x + +requires jq --version +requires qemu-img --version +requires qemu-img map --help + +out="test-data-extents.out" +expected="test-data-extents.expected" +files="$out $expected" +rm -f $files +cleanup_fn rm -f $files + +do_test () +{ + # We use jq to normalize the output and convert it to plain text. + nbdkit -U - data data="$1" size="$2" \ + --run 'qemu-img map -f raw --output=json $nbd' | + jq -c '.[] | {start:.start, length:.length, data:.data, zero:.zero}' \ + > $out + if ! cmp $out $expected; then + echo "$0: output did not match expected data" + echo "expected:" + cat $expected + echo "output:" + cat $out + exit 1 + fi +} + +# Completely sparse disk. +cat > $expected <<'EOF' +{"start":0,"length":1048576,"data":false,"zero":true} +EOF +do_test "" 1M + +# Completely allocated disk. +cat > $expected <<'EOF' +{"start":0,"length":32768,"data":true,"zero":false} +EOF +do_test "1" 32K + +# Allocated data at the start of a 1M disk. +cat > $expected <<'EOF' +{"start":0,"length":32768,"data":true,"zero":false} +{"start":32768,"length":1015808,"data":false,"zero":true} +EOF +do_test "1" 1M + +# Allocated zeroes at the start of the disk. This should create a +# zero extent (data=true zero=true). +cat > $expected <<'EOF' +{"start":0,"length":32768,"data":true,"zero":true} +{"start":32768,"length":1015808,"data":false,"zero":true} +EOF +do_test "0" 1M + +# Completely zero disk. +cat > $expected <<'EOF' +{"start":0,"length":32768,"data":true,"zero":true} +EOF +do_test "0 0 0" 32K + +# Allocated data and zero extents in a few places in the middle. +cat > $expected <<'EOF' +{"start":0,"length":32768,"data":false,"zero":true} +{"start":32768,"length":32768,"data":true,"zero":false} +{"start":65536,"length":32768,"data":true,"zero":true} +{"start":98304,"length":32768,"data":false,"zero":true} +{"start":131072,"length":32768,"data":true,"zero":false} +{"start":163840,"length":98304,"data":false,"zero":true} +{"start":262144,"length":32768,"data":true,"zero":true} +{"start":294912,"length":32768,"data":true,"zero":false} +{"start":327680,"length":720896,"data":false,"zero":true} +EOF +do_test "@32768 1 @65536 0 @131072 1 @262144 0 @294912 1" 1M + +# This should test coalescing in the extents code. +cat > $expected <<'EOF' +{"start":0,"length":32768,"data":false,"zero":true} +{"start":32768,"length":65536,"data":true,"zero":false} +{"start":98304,"length":32768,"data":false,"zero":true} +{"start":131072,"length":65536,"data":true,"zero":true} +{"start":196608,"length":851968,"data":false,"zero":true} +EOF +do_test "@32768 1 @65536 1 @131072 0 @163840 0" 1M + +# Zero-length plugin. Unlike nbdkit-zero-plugin, the data plugin +# advertises extents and so will behave differently. +cat > $expected <<'EOF' +{"start":0,"length":0,"data":false,"zero":false} +EOF +do_test "" 0 diff --git a/tests/test-data-file.sh b/tests/test-data-file.sh new file mode 100755 index 0000000..21dfdac --- /dev/null +++ b/tests/test-data-file.sh @@ -0,0 +1,126 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Test the data plugin with an inline file. + +source ./functions.sh +set -e +set -x + +requires qemu-io --version + +sock=`mktemp -u` +files="data-file.out data-file.pid $sock data-hello.txt" +rm -f $files +cleanup_fn rm -f $files + +rm -f data-hello.txt +for i in {0..1000}; do + echo -n "hello " >> data-hello.txt +done + +# Run nbdkit. +start_nbdkit -P data-file.pid -U $sock \ + --filter=partition \ + data partition=1 \ + size=1M \ + data=" + @0x1b8 178 190 207 221 0 0 0 0 2 0 131 32 32 0 1 0 0 0 255 7 + @0x1fe 85 170 + @0x200 <data-hello.txt + " + +# Since we're reading the empty first partition, any read returns zeroes. +qemu-io -r -f raw "nbd+unix://?socket=$sock" \ + -c 'r -v 0 900' | grep -E '^[[:xdigit:]]+:' > data-file.out +if [ "$(cat data-file.out)" != "00000000: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell +00000010: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he +00000020: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello. +00000030: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell +00000040: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he +00000050: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello. +00000060: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell +00000070: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he +00000080: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello. +00000090: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell +000000a0: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he +000000b0: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello. +000000c0: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell +000000d0: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he +000000e0: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello. +000000f0: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell +00000100: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he +00000110: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello. +00000120: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell +00000130: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he +00000140: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello. +00000150: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell +00000160: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he +00000170: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello. +00000180: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell +00000190: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he +000001a0: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello. +000001b0: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell +000001c0: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he +000001d0: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello. +000001e0: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell +000001f0: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he +00000200: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello. +00000210: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell +00000220: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he +00000230: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello. +00000240: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell +00000250: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he +00000260: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello. +00000270: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell +00000280: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he +00000290: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello. +000002a0: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell +000002b0: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he +000002c0: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello. +000002d0: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell +000002e0: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he +000002f0: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello. +00000300: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell +00000310: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he +00000320: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello. +00000330: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell +00000340: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he +00000350: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello. +00000360: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell +00000370: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he +00000380: 6c 6c 6f 20 llo." ] +then + echo "$0: unexpected pattern:" + cat data-file.out + exit 1 +fi diff --git a/tests/test-data-raw.sh b/tests/test-data-raw.sh new file mode 100755 index 0000000..3da6f8d --- /dev/null +++ b/tests/test-data-raw.sh @@ -0,0 +1,88 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Test the data plugin with raw= parameter. + +source ./functions.sh +set -e +set -x + +requires qemu-io --version + +sock=`mktemp -u` +files="data-raw.out data-raw.pid $sock" +rm -f $files +cleanup_fn rm -f $files + +# Run nbdkit. +start_nbdkit -P data-raw.pid -U $sock --export "" \ + data raw=123 size=512 + +qemu-io -r -f raw "nbd+unix://?socket=$sock" \ + -c 'r -v 0 512' | grep -E '^[[:xdigit:]]+:' > data-raw.out +if [ "$(cat data-raw.out)" != "00000000: 31 32 33 00 00 00 00 00 00 00 00 00 00 00 00 00 123............. +00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +000000a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +000000b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +000000c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +000000d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +000000e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +000000f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000140: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000150: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000160: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000170: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +00000190: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +000001a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +000001b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +000001c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +000001d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +000001e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +000001f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................" ] +then + echo "$0: unexpected pattern:" + cat data-raw.out + exit 1 +fi diff --git a/tests/test-data.c b/tests/test-data.c new file mode 100644 index 0000000..b8ce492 --- /dev/null +++ b/tests/test-data.c @@ -0,0 +1,126 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> + +#include <guestfs.h> + +#include "iszero.h" +#include "test.h" + +int +main (int argc, char *argv[]) +{ + guestfs_h *g; + int r; + char *data; + size_t size; + + if (test_start_nbdkit ("data", + /* This example from the nbdkit-data-plugin(1) + * man page creates a 1 MB disk with one + * empty MBR-formatted partition. + */ + "data=@0x1b8 0xf8 0x21 0xdc 0xeb 0 0 0 0 " + "2 0 0x83 0x20 0x20 0 1 0 0 0 0xff 0x7 " + "@0x1fe 0x55 0xaa", + "size=1M", + NULL) == -1) + exit (EXIT_FAILURE); + + g = guestfs_create (); + if (g == NULL) { + perror ("guestfs_create"); + exit (EXIT_FAILURE); + } + + r = guestfs_add_drive_opts (g, "", + GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw", + GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd", + GUESTFS_ADD_DRIVE_OPTS_SERVER, server, + -1); + if (r == -1) + exit (EXIT_FAILURE); + + if (guestfs_launch (g) == -1) + exit (EXIT_FAILURE); + + /* Read the actual data in the first sector, to check that it + * matches what we described in the data= parameter above. + */ + data = guestfs_pread_device (g, "/dev/sda", 512, 0, &size); + if (data == NULL) + exit (EXIT_FAILURE); + if (size != 512) { + fprintf (stderr, "%s: unexpected short read\n", program_name); + exit (EXIT_FAILURE); + } + if (memcmp (&data[0x1b8], + "\xf8\x21\xdc\xeb\0\0\0\0" + "\2\0\x83\x20\x20\0\1\0\0\0\xff\x7", 20) != 0 || + memcmp (&data[0x1fe], "\x55\xaa", 2) != 0) { + fprintf (stderr, "%s: unexpected data in boot sector\n", program_name); + exit (EXIT_FAILURE); + } + memset (&data[0x1b8], 0, 20); + memset (&data[0x1fe], 0, 2); + if (!is_zero (data, 512)) { + fprintf (stderr, "%s: unexpected data in zero parts of boot sector\n", + program_name); + exit (EXIT_FAILURE); + } + free (data); + + /* Since the disk image has a partition, we should be able to format it. */ + if (guestfs_mkfs (g, "vfat", "/dev/sda1") == -1) + exit (EXIT_FAILURE); + + /* Mount it and write a file. */ + if (guestfs_mount (g, "/dev/sda1", "/") == -1) + exit (EXIT_FAILURE); + + if (guestfs_write (g, "/foo", "hello", 5) == -1) + exit (EXIT_FAILURE); + + if (guestfs_shutdown (g) == -1) + exit (EXIT_FAILURE); + + guestfs_close (g); + exit (EXIT_SUCCESS); +} diff --git a/tests/test-debug-flags.sh b/tests/test-debug-flags.sh new file mode 100755 index 0000000..10e916c --- /dev/null +++ b/tests/test-debug-flags.sh @@ -0,0 +1,88 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -x + +export LANG=C + +# Test nbdkit -D option. + +files=debug-flags.out +rm -f $files +cleanup_fn rm -f $files + +expected_failure () +{ + echo "expected previous nbdkit command to fail, but it did not" + exit 1 +} + +check_error () +{ + if ! grep -sq "$1" debug-flags.out; then + echo "unexpected error message containing: $1" + echo "actual output:" + cat debug-flags.out + exit 1 + fi +} + +# This is expected to fail because we didn't set the file= parameter, +# but it should not fail because of the debug flag. +nbdkit -f -D example2.extra=1 example2 2>debug-flags.out && expected_failure +check_error "you must supply the file=" + +# This should fail because the -D flag refers to an unknown global in +# a known plugin. +nbdkit -f -D example2.unknown=1 example2 2>debug-flags.out && expected_failure +check_error "does not contain a global variable called example2_debug_unknown" + +# This should fail because the -D flag is unused. +nbdkit -f -D example1.foo=1 example2 2>debug-flags.out && expected_failure +check_error "was not used" + +# These should fail because the -D flag has a bad format. +nbdkit -f -D = example2 2>debug-flags.out && expected_failure +check_error "must have the format" +nbdkit -f -D . example2 2>debug-flags.out && expected_failure +check_error "must have the format" +nbdkit -f -D =. example2 2>debug-flags.out && expected_failure +check_error "must have the format" +nbdkit -f -D .= example2 2>debug-flags.out && expected_failure +check_error "must have the format" +nbdkit -f -D .extra=1 example2 2>debug-flags.out && expected_failure +check_error "must have the format" +nbdkit -f -D example2.=1 example2 2>debug-flags.out && expected_failure +check_error "must have the format" +nbdkit -f -D example2.extra= example2 2>debug-flags.out && expected_failure +check_error "must have the format" diff --git a/tests/test-delay.c b/tests/test-delay.c new file mode 100644 index 0000000..9bf2e01 --- /dev/null +++ b/tests/test-delay.c @@ -0,0 +1,104 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> +#include <time.h> + +#include <guestfs.h> + +#include "test.h" + +int +main (int argc, char *argv[]) +{ + guestfs_h *g; + int i, r; + time_t start_t, end_t; + + if (test_start_nbdkit ("--filter", "delay", + "memory", "size=1M", + "wdelay=10", NULL) == -1) + exit (EXIT_FAILURE); + + g = guestfs_create (); + if (g == NULL) { + perror ("guestfs_create"); + exit (EXIT_FAILURE); + } + + r = guestfs_add_drive_opts (g, "", + GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw", + GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd", + GUESTFS_ADD_DRIVE_OPTS_SERVER, server, + -1); + if (r == -1) + exit (EXIT_FAILURE); + + if (guestfs_launch (g) == -1) + exit (EXIT_FAILURE); + + /* Reads should work as normal. Do lots of small reads here so + * we will notice if they are being delayed. + */ + for (i = 0; i < 100; ++i) { + char *data; + size_t n; + + data = guestfs_pread_device (g, "/dev/sda", 512, 51200-512*i, &n); + if (data == NULL) + exit (EXIT_FAILURE); + free (data); + } + + /* Writes should be delayed by >= 10 seconds. */ + time (&start_t); + if (guestfs_pwrite_device (g, "/dev/sda", "hello", 5, 100000) == -1) + exit (EXIT_FAILURE); + if (guestfs_sync (g) == -1) + exit (EXIT_FAILURE); + time (&end_t); + + if (end_t - start_t < 10) { + fprintf (stderr, "%s FAILED: no write delay detected\n", program_name); + exit (EXIT_FAILURE); + } + + guestfs_close (g); + exit (EXIT_SUCCESS); +} diff --git a/tests/test-dump-config.sh b/tests/test-dump-config.sh new file mode 100755 index 0000000..70a4cd5 --- /dev/null +++ b/tests/test-dump-config.sh @@ -0,0 +1,41 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2014 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e + +output="$(nbdkit --dump-config)" +if [[ ! ( "$output" =~ ^bindir= ) ]]; then + echo "$0: unexpected output from nbdkit --dump-config" + echo "$output" + exit 1 +fi diff --git a/tests/test-dump-plugin-example4.sh b/tests/test-dump-plugin-example4.sh new file mode 100755 index 0000000..6fcaaa2 --- /dev/null +++ b/tests/test-dump-plugin-example4.sh @@ -0,0 +1,41 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2017 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +set -e +source ./functions.sh + +output="$(nbdkit example4 --dump-plugin)" +if [[ ! ( "$output" =~ example4_extra\=hello ) ]]; then + echo "$0: unexpected output from nbdkit example4 --dump-plugin" + echo "$output" + exit 1 +fi diff --git a/tests/test-dump-plugin.sh b/tests/test-dump-plugin.sh new file mode 100755 index 0000000..17bfa2f --- /dev/null +++ b/tests/test-dump-plugin.sh @@ -0,0 +1,70 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2014 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +# Basic check that the name field is present. +output="$(nbdkit example1 --dump-plugin)" +if [[ ! ( "$output" =~ name\=example1 ) ]]; then + echo "$0: unexpected output from nbdkit example1 --dump-plugin" + echo "$output" + exit 1 +fi + +# example2 overrides the --dump-plugin with extra data. +output="$(nbdkit example2 --dump-plugin)" +if [[ ! ( "$output" =~ example2_extra\=hello ) ]]; then + echo "$0: unexpected output from nbdkit example2 --dump-plugin" + echo "$output" + exit 1 +fi + +# Run nbdkit plugin --dump-plugin for each plugin. +# However some of these tests are expected to fail. +test () +{ + vg=; [ "$NBDKIT_VALGRIND" = "1" ] && vg="-valgrind" + case "$1$vg" in + vddk | vddk-valgrind) + echo "$0: skipping $1$vg because VDDK cannot run without special environment variables" + ;; + python-valgrind | ruby-valgrind | tcl-valgrind) + echo "$0: skipping $1$vg because this language doesn't support valgrind" + ;; + *) + nbdkit $1 --dump-plugin + ;; + esac +} +foreach_plugin test diff --git a/tests/test-eflags.sh b/tests/test-eflags.sh new file mode 100755 index 0000000..84dcfe8 --- /dev/null +++ b/tests/test-eflags.sh @@ -0,0 +1,288 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Test export flags. +# +# Run nbdkit with various can_* callbacks defined and with or without +# the -r flag, and check that nbdkit constructs the export flags +# controlling READ_ONLY, ROTATIONAL, SEND_TRIM, etc. as expected. +# +# We use the shell plugin because it gives maximum control over the +# can_* callbacks (at least, max without having to write a C plugin). + +source ./functions.sh +set -e + +requires qemu-nbd --version + +# This test uses the ‘qemu-nbd --list’ option added in qemu 4.0. +if ! qemu-nbd --help | grep -sq -- --list; then + echo "$0: skipping because qemu-nbd does not support the --list option" + exit 77 +fi + +files="eflags.out" +rm -f $files +cleanup_fn rm -f $files + +# The export flags. +# See also common/protocol/protocol.h +HAS_FLAGS=$(( 1 << 0 )) +READ_ONLY=$(( 1 << 1 )) +SEND_FLUSH=$(( 1 << 2 )) +SEND_FUA=$(( 1 << 3 )) +ROTATIONAL=$(( 1 << 4 )) +SEND_TRIM=$(( 1 << 5 )) +SEND_WRITE_ZEROES=$(( 1 << 6 )) +SEND_DF=$(( 1 << 7 )) +CAN_MULTI_CONN=$(( 1 << 8 )) +SEND_RESIZE=$(( 1 << 9 )) +SEND_CACHE=$(( 1 << 10 )) + +do_nbdkit () +{ + nbdkit -v -U - "$@" sh - --run 'qemu-nbd --list -k $unixsocket' | + grep -E "flags: 0x" | grep -Eoi '0x[a-f0-9]+' > eflags.out + echo -n eflags=; cat eflags.out + + # Convert hex flags to decimal and assign it to $eflags. + eflags=$(printf "%d" $(cat eflags.out)) +} + +fail () +{ + echo "error: $@ (actual flags were $eflags)" + exit 1 +} + +#---------------------------------------------------------------------- +# can_write=false + +do_nbdkit <<'EOF' +case "$1" in + get_size) echo 1M ;; + *) exit 2 ;; +esac +EOF + +[ $eflags -eq $(( HAS_FLAGS|READ_ONLY|SEND_DF )) ] || + fail "expected HAS_FLAGS|READ_ONLY|SEND_DF" + +#---------------------------------------------------------------------- +# -r +# can_write=false + +do_nbdkit -r <<'EOF' +case "$1" in + get_size) echo 1M ;; + *) exit 2 ;; +esac +EOF + +[ $eflags -eq $(( HAS_FLAGS|READ_ONLY|SEND_DF )) ] || + fail "expected HAS_FLAGS|READ_ONLY|SEND_DF" + +#---------------------------------------------------------------------- +# can_write=true +# +# NBD_FLAG_SEND_WRITE_ZEROES is always set on writable connections +# even if can_zero returns false, because nbdkit reckons it can +# emulate zeroing using pwrite. + +do_nbdkit <<'EOF' +case "$1" in + get_size) echo 1M ;; + can_write) exit 0 ;; + *) exit 2 ;; +esac +EOF + +[ $eflags -eq $(( HAS_FLAGS|SEND_WRITE_ZEROES|SEND_DF )) ] || + fail "expected HAS_FLAGS|SEND_WRITE_ZEROES|SEND_DF" + +#---------------------------------------------------------------------- +# -r +# can_write=true +# +# The -r flag overrides the plugin so this behaves as if can_write is +# false. + +do_nbdkit -r <<'EOF' +case "$1" in + get_size) echo 1M ;; + can_write) exit 0 ;; + *) exit 2 ;; +esac +EOF + +[ $eflags -eq $(( HAS_FLAGS|READ_ONLY|SEND_DF )) ] || + fail "expected HAS_FLAGS|READ_ONLY|SEND_DF" + +#---------------------------------------------------------------------- +# can_write=false +# can_trim=true +# can_zero=true +# +# If writing is not possible then trim and zero are always disabled. + +do_nbdkit <<'EOF' +case "$1" in + get_size) echo 1M ;; + can_write) exit 3 ;; + can_trim) exit 0 ;; + can_zero) exit 0 ;; + *) exit 2 ;; +esac +EOF + +[ $eflags -eq $(( HAS_FLAGS|READ_ONLY|SEND_DF )) ] || + fail "expected HAS_FLAGS|READ_ONLY|SEND_DF" + +#---------------------------------------------------------------------- +# -r +# can_write=false +# can_trim=true +# can_zero=true +# +# This is a formality, but check it's the same as above. + +do_nbdkit -r <<'EOF' +case "$1" in + get_size) echo 1M ;; + can_write) exit 3 ;; + can_trim) exit 0 ;; + can_zero) exit 0 ;; + *) exit 2 ;; +esac +EOF + +[ $eflags -eq $(( HAS_FLAGS|READ_ONLY|SEND_DF )) ] || + fail "expected HAS_FLAGS|READ_ONLY|SEND_DF" + +#---------------------------------------------------------------------- +# can_write=true +# can_trim=true + +do_nbdkit <<'EOF' +case "$1" in + get_size) echo 1M ;; + can_write) exit 0 ;; + can_trim) exit 0 ;; + *) exit 2 ;; +esac +EOF + +[ $eflags -eq $(( HAS_FLAGS|SEND_TRIM|SEND_WRITE_ZEROES|SEND_DF )) ] || + fail "expected HAS_FLAGS|SEND_TRIM|SEND_WRITE_ZEROES|SEND_DF" + +#---------------------------------------------------------------------- +# can_write=true +# is_rotational=true + +do_nbdkit <<'EOF' +case "$1" in + get_size) echo 1M ;; + can_write) exit 0 ;; + is_rotational) exit 0 ;; + *) exit 2 ;; +esac +EOF + +[ $eflags -eq $(( HAS_FLAGS|ROTATIONAL|SEND_WRITE_ZEROES|SEND_DF )) ] || + fail "expected HAS_FLAGS|ROTATIONAL|SEND_WRITE_ZEROES|SEND_DF" + +#---------------------------------------------------------------------- +# -r +# can_write=true +# is_rotational=true + +do_nbdkit -r <<'EOF' +case "$1" in + get_size) echo 1M ;; + can_write) exit 0 ;; + is_rotational) exit 0 ;; + *) exit 2 ;; +esac +EOF + +[ $eflags -eq $(( HAS_FLAGS|READ_ONLY|ROTATIONAL|SEND_DF )) ] || + fail "expected HAS_FLAGS|READ_ONLY|ROTATIONAL|SEND_DF" + +#---------------------------------------------------------------------- +# can_write=true +# can_fua=native + +do_nbdkit <<'EOF' +case "$1" in + get_size) echo 1M ;; + can_write) exit 0 ;; + can_fua) echo "native" ;; + *) exit 2 ;; +esac +EOF + +[ $eflags -eq $(( HAS_FLAGS|SEND_FUA|SEND_WRITE_ZEROES|SEND_DF )) ] || + fail "expected HAS_FLAGS|SEND_FUA|SEND_WRITE_ZEROES|SEND_DF" + +#---------------------------------------------------------------------- +# -r +# can_write=true +# can_fua=native +# +# Setting read-only should ignore can_fua. + +do_nbdkit -r <<'EOF' +case "$1" in + get_size) echo 1M ;; + can_write) exit 0 ;; + can_fua) echo "native" ;; + *) exit 2 ;; +esac +EOF + +[ $eflags -eq $(( HAS_FLAGS|READ_ONLY|SEND_DF )) ] || + fail "expected HAS_FLAGS|READ_ONLY|SEND_DF" + +#---------------------------------------------------------------------- +# -r +# can_multi_conn=true + +do_nbdkit -r <<'EOF' +case "$1" in + get_size) echo 1M ;; + can_multi_conn) echo 0 ;; + *) exit 2 ;; +esac +EOF + +[ $eflags -eq $(( HAS_FLAGS|READ_ONLY|SEND_DF|CAN_MULTI_CONN )) ] || + fail "expected HAS_FLAGS|READ_ONLY|SEND_DF|CAN_MULTI_CONN" diff --git a/tests/test-error.c b/tests/test-error.c new file mode 100644 index 0000000..9892fe9 --- /dev/null +++ b/tests/test-error.c @@ -0,0 +1,171 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> +#include <time.h> + +#include <guestfs.h> + +#include "test.h" + +int +main (int argc, char *argv[]) +{ + guestfs_h *g; + int r; + FILE *fp; + char *data; +#if 0 + int error; +#endif + char tmpdir[] = "/tmp/errorXXXXXX"; + char error_file[] = "/tmp/errorXXXXXX/trigger"; + char error_file_param[] = "error-file=/tmp/errorXXXXXX/trigger"; + + /* Create temporary directory to store the trigger file. */ + if (mkdtemp (tmpdir) == NULL) { + perror ("mkdtemp"); + exit (EXIT_FAILURE); + } + + memcpy (error_file, tmpdir, strlen (tmpdir)); + memcpy (&error_file_param[11], tmpdir, strlen (tmpdir)); + + if (test_start_nbdkit ("--filter", "error", + "memory", "size=1M", + "error=EIO", + "error-rate=100%", + error_file_param, + NULL) == -1) + exit (EXIT_FAILURE); + + g = guestfs_create (); + if (g == NULL) { + perror ("guestfs_create"); + exit (EXIT_FAILURE); + } + + r = guestfs_add_drive_opts (g, "", + GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw", + GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd", + GUESTFS_ADD_DRIVE_OPTS_SERVER, server, + -1); + if (r == -1) + exit (EXIT_FAILURE); + + if (guestfs_launch (g) == -1) + exit (EXIT_FAILURE); + + /* Format the disk with a filesystem. No errors are being injected + * yet so we expect this to work. + */ + if (guestfs_part_disk (g, "/dev/sda", "mbr") == -1) + exit (EXIT_FAILURE); + + if (guestfs_mkfs (g, "ext2", "/dev/sda1") == -1) + exit (EXIT_FAILURE); + + if (guestfs_mount (g, "/dev/sda1", "/") == -1) + exit (EXIT_FAILURE); + +#define filename "/hello.txt" +#define content "hello, people of the world" + + if (guestfs_write (g, filename, content, strlen (content)) == -1) + exit (EXIT_FAILURE); + + /* Try as hard as we can to sync data and kill the libguestfs cache. */ + if (guestfs_sync (g) == -1) + exit (EXIT_FAILURE); + if (guestfs_drop_caches (g, 3) == -1) + exit (EXIT_FAILURE); + sleep (1); + + /* Now start injecting EIO errors. */ + fp = fopen (error_file, "w"); + if (fp == NULL) { + perror (error_file); + exit (EXIT_FAILURE); + } + fclose (fp); + + data = guestfs_cat (g, filename); + if (data != NULL) { + fprintf (stderr, + "%s: error: " + "expecting Input/output error, but read data!\n", + program_name); + exit (EXIT_FAILURE); + } + +#if 0 + /* Apparently libguestfs doesn't preserve the errno here yet XXX */ + error = guestfs_last_errno (g); + if (error != EIO) { + fprintf (stderr, "%s: error: expecting errno = EIO, but got %d\n", + program_name, error); + exit (EXIT_FAILURE); + } +#endif + + /* Stop injecting errors, hope that the filesystem recovers. */ + unlink (error_file); + + /* But we'll probably have to remount the filesystem because ext2 + * will get itself into a "state". + */ + if (guestfs_umount (g, "/") == -1) + exit (EXIT_FAILURE); + if (guestfs_mount (g, "/dev/sda1", "/") == -1) + exit (EXIT_FAILURE); + + data = guestfs_cat (g, filename); + if (data == NULL) + exit (EXIT_FAILURE); + if (strcmp (data, content) != 0) { + fprintf (stderr, "%s: error: read unexpected data\n", program_name); + exit (EXIT_FAILURE); + } + + guestfs_close (g); + + rmdir (tmpdir); + + exit (EXIT_SUCCESS); +} diff --git a/tests/test-error0.sh b/tests/test-error0.sh new file mode 100755 index 0000000..e95393d --- /dev/null +++ b/tests/test-error0.sh @@ -0,0 +1,54 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +requires qemu-io --version + +sock=`mktemp -u` +files="$sock error0.pid" +rm -f $files +cleanup_fn rm -f $files + +# Run nbdkit with the error filter. +start_nbdkit -P error0.pid -U $sock \ + --filter=error \ + pattern size=1G error-rate=0% + +# Because error rate is 0%, reads should never fail. +qemu-io -r -f raw "nbd+unix://?socket=$sock" \ + -c "r 0M 10M" \ + -c "r 20M 10M" \ + -c "r 40M 10M" \ + -c "r 60M 10M" diff --git a/tests/test-error10.sh b/tests/test-error10.sh new file mode 100755 index 0000000..dc53eac --- /dev/null +++ b/tests/test-error10.sh @@ -0,0 +1,63 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +requires qemu-io --version + +sock=`mktemp -u` +files="$sock error10.pid" +rm -f $files +cleanup_fn rm -f $files + +# Run nbdkit with the error filter. +start_nbdkit -P error10.pid -U $sock \ + --filter=error \ + pattern size=1G error-rate=10% + +# The error rate is 10% so about every 1 in 10 operations should fail. +errors=0 +for i in {1..100}; do + qemu-io -r -f raw "nbd+unix://?socket=$sock" \ + -c "r 0 512" || ((++errors)) +done + +echo errors=$errors +# Unfortunately there's no "right answer" here, so our policy is if we +# see the error number in a real test run we will extend the +# boundaries here. +if [ $errors -lt 3 ] || [ $errors -gt 21 ]; then + echo "$0: unexpected error rate" + exit 1 +fi diff --git a/tests/test-error100.sh b/tests/test-error100.sh new file mode 100755 index 0000000..e8b37a5 --- /dev/null +++ b/tests/test-error100.sh @@ -0,0 +1,56 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +requires qemu-io --version + +sock=`mktemp -u` +files="$sock error100.pid" +rm -f $files +cleanup_fn rm -f $files + +# Run nbdkit with the error filter. +start_nbdkit -P error100.pid -U $sock \ + --filter=error \ + pattern size=1G error-rate=100% + +# The error rate is 100% so every operation must fail. +for i in {1..100}; do + if qemu-io -r -f raw "nbd+unix://?socket=$sock" \ + -c "r 0 512"; then + echo "$0: expected qemu-io command to fail" + exit 1 + fi +done diff --git a/tests/test-exit-with-parent.c b/tests/test-exit-with-parent.c new file mode 100644 index 0000000..2bb5d8f --- /dev/null +++ b/tests/test-exit-with-parent.c @@ -0,0 +1,195 @@ +/* nbdkit + * Copyright (C) 2017 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> +#include <sys/types.h> +#include <sys/wait.h> +#include <errno.h> + +#include "exit-with-parent.h" +#include "test.h" + +static char pidpath[] = "/tmp/nbdkitpidXXXXXX"; + +static void run_test (void); + +int +main (int argc, char *argv[]) +{ +#ifndef HAVE_EXIT_WITH_PARENT + printf ("--exit-with-parent is not implemented on this platform, skipping\n"); + exit (77); +#else + run_test (); + exit (EXIT_SUCCESS); +#endif +} + +static void +run_test (void) +{ + pid_t cpid, nbdpid; + int i, fd, status; + FILE *fp; + ssize_t r; + size_t n; + char *pidstr; + + fd = mkstemp (pidpath); + if (fd == -1) { + perror ("mkstemp"); + exit (EXIT_FAILURE); + } + close (fd); + unlink (pidpath); + + /* We're going to create: + * + * monitoring process (this) + * | + * `--- child process waits for nbdkit to start then exits (cpid) + * | + * `--- exec nbdkit --exit-with-parent (pidpath) + * + * We can read the nbdkit PID in the monitoring process using + * the pidpath file. + */ + cpid = fork (); + if (cpid == 0) { /* child process */ + pid_t pid; + + pid = fork (); + if (pid == 0) { /* exec nbdkit process */ + const char *argv[] = { + "nbdkit", "-U", "-", "-P", pidpath, "-f", "--exit-with-parent", + "example1", + NULL + }; + + execvp ("nbdkit", (char **) argv); + perror ("exec: nbdkit"); + _exit (EXIT_FAILURE); + } + + /* Wait for the pidfile to turn up, which indicates that nbdkit has + * started up successfully and is ready to serve requests. However + * if 'pid' exits in this time it indicates a failure to start up. + * Also there is a timeout in case nbdkit hangs. + */ + for (i = 0; i < NBDKIT_START_TIMEOUT; ++i) { + if (waitpid (pid, NULL, WNOHANG) == pid) + goto early_exit; + + if (kill (pid, 0) == -1) { + if (errno == ESRCH) { + early_exit: + fprintf (stderr, + "%s FAILED: nbdkit exited before starting to serve files\n", + program_name); + pid = 0; + exit (EXIT_FAILURE); + } + perror ("kill"); + } + + if (access (pidpath, F_OK) == 0) + break; + + sleep (1); + } + + /* nbdkit is now running, check that --exit-with-parent works + * by exiting abruptly here. + */ + _exit (EXIT_SUCCESS); + } + + /* Monitoring process. */ + if (waitpid (cpid, &status, 0) == -1) { + perror ("waitpid (cpid)"); + exit (EXIT_FAILURE); + } + if (WIFEXITED (status) && WEXITSTATUS (status) != 1) + exit (WEXITSTATUS (status)); + if (WIFSIGNALED (status)) { + fprintf (stderr, "child terminated by signal %d\n", WTERMSIG (status)); + exit (EXIT_FAILURE); + } + if (WIFSTOPPED (status)) { + fprintf (stderr, "child stopped by signal %d\n", WSTOPSIG (status)); + exit (EXIT_FAILURE); + } + + /* Get the PID of nbdkit from the pidpath file. */ + fp = fopen (pidpath, "r"); + if (fp == NULL) { + perror (pidpath); + exit (EXIT_FAILURE); + } + r = getline (&pidstr, &n, fp); + if (r == -1) { + perror ("read"); + exit (EXIT_FAILURE); + } + if (sscanf (pidstr, "%d", &nbdpid) != 1) { + fprintf (stderr, "could not read nbdkit PID from -P pidfile (%s)\n", + pidpath); + exit (EXIT_FAILURE); + } + fclose (fp); + free (pidstr); + unlink (pidpath); + + /* We expect PID to go away, but it might take a few seconds. */ + for (i = 0; i < NBDKIT_START_TIMEOUT; ++i) { + if (kill (nbdpid, 0) == -1) { + if (errno == ESRCH) goto done; /* good - gone away */ + perror ("kill"); + exit (EXIT_FAILURE); + } + + sleep (1); + } + + fprintf (stderr, "--exit-with-parent does not appear to work\n"); + exit (EXIT_FAILURE); + + done: + ; +} diff --git a/tests/test-ext2.c b/tests/test-ext2.c new file mode 100644 index 0000000..d5b46f0 --- /dev/null +++ b/tests/test-ext2.c @@ -0,0 +1,93 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> + +#include <guestfs.h> + +#include "test.h" + +int +main (int argc, char *argv[]) +{ + guestfs_h *g; + int r; + char *data; + + if (test_start_nbdkit ("ext2", "-r", "disk=ext2.img", "file=/disks/disk.img", + NULL) == -1) + exit (EXIT_FAILURE); + + g = guestfs_create (); + if (g == NULL) { + perror ("guestfs_create"); + exit (EXIT_FAILURE); + } + + r = guestfs_add_drive_opts (g, "", + GUESTFS_ADD_DRIVE_OPTS_READONLY, 1, + GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw", + GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd", + GUESTFS_ADD_DRIVE_OPTS_SERVER, server, + -1); + if (r == -1) + exit (EXIT_FAILURE); + + if (guestfs_launch (g) == -1) + exit (EXIT_FAILURE); + + /* disk.img contains one partition and a test file called "hello.txt" */ + if (guestfs_mount_ro (g, "/dev/sda1", "/") == -1) + exit (EXIT_FAILURE); + + data = guestfs_cat (g, "/hello.txt"); + if (!data) + exit (EXIT_FAILURE); + + if (strcmp (data, "hello,world") != 0) { + fprintf (stderr, + "%s FAILED: unexpected content of /hello.txt file " + "(actual: %s, expected: \"hello,world\")\n", + program_name, data); + exit (EXIT_FAILURE); + } + + guestfs_close (g); + exit (EXIT_SUCCESS); +} diff --git a/tests/test-file-block.c b/tests/test-file-block.c new file mode 100644 index 0000000..0c26f7b --- /dev/null +++ b/tests/test-file-block.c @@ -0,0 +1,221 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> +#include <sys/types.h> + +#include <guestfs.h> + +#include "test.h" + +static char *loopdev; /* Name of the loop device. */ +static void detach_loopdev (void); + +int +main (int argc, char *argv[]) +{ + guestfs_h *g; + int r; + int fd; + char cmd[64], buf[64]; + char disk[] = LARGE_TMPDIR "/diskXXXXXX"; /* Backing disk. */ + FILE *pp; + char *data; + size_t len; + char *s; + + /* This test can only be run as root, and will be skipped otherwise. */ + if (geteuid () != 0) { + fprintf (stderr, "%s: this test has to be run as root.\n", + program_name); + exit (77); + } + + /* losetup must be available. */ + r = system ("losetup --version"); + if (r != 0) { + fprintf (stderr, "%s: losetup program must be installed.\n", + program_name); + exit (77); + } + + /* Create the temporary backing disk. */ + fd = mkstemp (disk); + if (fd == -1) { + perror ("mkstemp"); + exit (EXIT_FAILURE); + } + if (ftruncate (fd, 100 * 1024 * 1024) == -1) { + perror ("ftruncate"); + unlink (disk); + exit (EXIT_FAILURE); + } + + /* Create the loopback device. */ + snprintf (cmd, sizeof cmd, "losetup -f --show %s", disk); + pp = popen (cmd, "r"); + if (pp == NULL) { + perror ("popen: losetup"); + unlink (disk); + exit (EXIT_FAILURE); + } + if (fgets (buf, sizeof buf, pp) == NULL) { + fprintf (stderr, "%s: could not read loop device name from losetup\n", + program_name); + unlink (disk); + exit (EXIT_FAILURE); + } + len = strlen (buf); + if (len > 0 && buf[len-1] == '\n') { + buf[len-1] = '\0'; + len--; + } + pclose (pp); + + /* We can delete the backing disk. The loop device will hold it open. */ + unlink (disk); + + /* If we get to this point, set up an atexit handler to detach the + * loop device. + */ + loopdev = malloc (len+1); + if (loopdev == NULL) { + perror ("malloc"); + exit (EXIT_FAILURE); + } + strcpy (loopdev, buf); + atexit (detach_loopdev); + + /* Start nbdkit. */ + if (test_start_nbdkit ("-D", "file.zero=1", + "file", loopdev, NULL) == -1) + exit (EXIT_FAILURE); + + g = guestfs_create (); + if (g == NULL) { + perror ("guestfs_create"); + exit (EXIT_FAILURE); + } + + r = guestfs_add_drive_opts (g, "", + GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw", + GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd", + GUESTFS_ADD_DRIVE_OPTS_SERVER, server, + -1); + if (r == -1) + exit (EXIT_FAILURE); + + if (guestfs_launch (g) == -1) + exit (EXIT_FAILURE); + + /* Partition the disk. */ + if (guestfs_part_disk (g, "/dev/sda", "mbr") == -1) + exit (EXIT_FAILURE); + if (guestfs_mkfs (g, "ext4", "/dev/sda1") == -1) + exit (EXIT_FAILURE); + + if (guestfs_mount_options (g, "discard", "/dev/sda1", "/") == -1) + exit (EXIT_FAILURE); + +#define filename "/hello.txt" +#define content "hello, people of the world" + + if (guestfs_write (g, filename, content, strlen (content)) == -1) + exit (EXIT_FAILURE); + + data = guestfs_cat (g, filename); + if (!data) + exit (EXIT_FAILURE); + + if (strcmp (data, content) != 0) { + fprintf (stderr, + "%s FAILED: unexpected content of %s file " + "(actual: %s, expected: %s)\n", + program_name, filename, data, content); + exit (EXIT_FAILURE); + } + + /* Run sync to test flush path. */ + if (guestfs_sync (g) == -1) + exit (EXIT_FAILURE); + + /* Run fstrim to test trim path. However only recent versions of + * libguestfs have this, and it probably only works in recent + * versions of qemu. + */ +#ifdef GUESTFS_HAVE_FSTRIM + if (guestfs_fstrim (g, "/", -1) == -1) + exit (EXIT_FAILURE); +#endif + + /* Run fallocate(1) on the device to test zero path. */ + if (guestfs_umount (g, "/") == -1) + exit (EXIT_FAILURE); + const char *sh[] = { "fallocate", "-nzl", "64k", "/dev/sda", NULL }; + s = guestfs_debug (g, "sh", (char **) sh); + free (s); + + if (guestfs_shutdown (g) == -1) + exit (EXIT_FAILURE); + + guestfs_close (g); + + /* The atexit handler should detach the loop device and clean up + * the backing disk. + */ + exit (EXIT_SUCCESS); +} + +/* atexit handler. */ +static void +detach_loopdev (void) +{ + char cmd[64]; + + if (loopdev == NULL) + return; + + snprintf (cmd, sizeof cmd, "losetup -d %s", loopdev); +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wunused-result" + system (cmd); +#pragma GCC diagnostic pop + free (loopdev); + loopdev = NULL; +} diff --git a/tests/test-file-extents.sh b/tests/test-file-extents.sh new file mode 100755 index 0000000..af5c503 --- /dev/null +++ b/tests/test-file-extents.sh @@ -0,0 +1,56 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# The output of qemu-img map on the local sparse file ‘disk’ should be +# identical to the output when we use the file plugin to read the +# extents. + +source ./functions.sh +set -e +set -x + +requires jq --version +requires qemu-img --version +requires qemu-img map --help + +files="test-file-extents.out test-file-extents.expected" +rm -f $files +cleanup_fn rm -f $files + +qemu-img map -f raw --output=json disk | + jq -c '.[] | {start:.start, length:.length, data:.data, zero:.zero}' \ + > test-file-extents.out +nbdkit -U - file disk --run 'qemu-img map -f raw --output=json $nbd' | + jq -c '.[] | {start:.start, length:.length, data:.data, zero:.zero}' \ + > test-file-extents.expected + +diff -u test-file-extents.out test-file-extents.expected diff --git a/tests/test-file.c b/tests/test-file.c new file mode 100644 index 0000000..cc62a23 --- /dev/null +++ b/tests/test-file.c @@ -0,0 +1,100 @@ +/* nbdkit + * Copyright (C) 2013 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> + +#include <guestfs.h> + +#include "test.h" + +int +main (int argc, char *argv[]) +{ + guestfs_h *g; + int r; + char *data; + size_t i, size; + + if (test_start_nbdkit ("file", "file-data", NULL) == -1) + exit (EXIT_FAILURE); + + g = guestfs_create (); + if (g == NULL) { + perror ("guestfs_create"); + exit (EXIT_FAILURE); + } + + r = guestfs_add_drive_opts (g, "", + GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw", + GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd", + GUESTFS_ADD_DRIVE_OPTS_SERVER, server, + -1); + if (r == -1) + exit (EXIT_FAILURE); + + if (guestfs_launch (g) == -1) + exit (EXIT_FAILURE); + + /* Check the data in the file is \x01-\x08 repeated 512 times. */ + data = guestfs_pread_device (g, "/dev/sda", 8 * 512, 0, &size); + if (!data) + exit (EXIT_FAILURE); + if (size != 8 * 512) { + fprintf (stderr, + "%s FAILED: unexpected size (actual: %zu, expected: 512)\n", + program_name, size); + exit (EXIT_FAILURE); + } + + for (i = 0; i < 512 * 8; i += 8) { + if (data[i] != 1 || data[i+1] != 2 || + data[i+2] != 3 || data[i+3] != 4 || + data[i+4] != 5 || data[i+5] != 6 || + data[i+6] != 7 || data[i+7] != 8) { + fprintf (stderr, "%s FAILED: unexpected data returned at offset %zu\n", + program_name, i); + exit (EXIT_FAILURE); + } + } + + free (data); + + guestfs_close (g); + exit (EXIT_SUCCESS); +} diff --git a/tests/test-floppy.sh b/tests/test-floppy.sh new file mode 100755 index 0000000..89fb1be --- /dev/null +++ b/tests/test-floppy.sh @@ -0,0 +1,67 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Test the floppy / FAT32 plugin. + +source ./functions.sh +set -e + +sock=`mktemp -u` +files="floppy.pid $sock floppy.test1 floppy.test2" +rm -f $files +cleanup_fn rm -f $files + +# When testing this we need to use a directory which won't change +# during the test (so not the current directory). +start_nbdkit -P floppy.pid -U $sock floppy $srcdir/../plugins + +# Check the floppy content. +guestfish --ro --format=raw -a "nbd://?socket=$sock" -m /dev/sda1 <<'EOF' + ll / + ll /floppy/ + ll /iso/ + +# This reads out all the directory entries and all file contents. + tar-out / - | cat >/dev/null + +# Check some files exist. This also tests LFN support. + is-file /floppy/Makefile.am + is-file /floppy/nbdkit-floppy-plugin.pod + +# Download some files and compare to local copies. + download /floppy/Makefile.am floppy.test1 + download /iso/Makefile.am floppy.test2 +EOF + +# Compare downloaded files to local versions. +cmp floppy.test1 $srcdir/../plugins/floppy/Makefile.am +cmp floppy.test2 $srcdir/../plugins/iso/Makefile.am diff --git a/tests/test-foreground.sh b/tests/test-foreground.sh new file mode 100755 index 0000000..7dbe4a4 --- /dev/null +++ b/tests/test-foreground.sh @@ -0,0 +1,80 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2014 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +set -e +set -x +source ./functions.sh + +# Test nbdkit -f option. + +sock=`mktemp -u` +files="foreground.pid $sock" +rm -f $files +cleanup_fn rm -f $files + +nbdkit -f -P foreground.pid -U $sock example1 & +bg_pid=$! + +# We may have to wait a short time for the pid file to appear. +for i in {1..60}; do + if test -f foreground.pid; then + break + fi + sleep 1 +done +if ! test -f foreground.pid; then + echo "$0: PID file was not created" + exit 1 +fi + +pid="$(cat foreground.pid)" +cleanup_fn kill $pid + +test "$bg_pid" -eq "$pid" + +# Check the socket was created (and is a socket). +test -S $sock + +# Kill the process. +kill $pid + +# Check the process exits (eventually). +for i in {1..10}; do + if ! kill -s 0 $pid; then + break; + fi + sleep 1 +done +if kill -s 0 $pid; then + echo "$0: process did not exit after sending a signal" + exit 1 +fi diff --git a/tests/test-fua.sh b/tests/test-fua.sh new file mode 100755 index 0000000..c0d82db --- /dev/null +++ b/tests/test-fua.sh @@ -0,0 +1,126 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +sockdir=`mktemp -d` +files="fua.img + fua1.log fua1.pid + fua2.log fua2.pid + fua3.log fua3.pid + fua4.log fua4.pid" +rm -f $files + +# Prep images, and check that qemu-io understands the actions we plan on +# doing. We can't test trim+FUA, since qemu-io won't expose that. +truncate -s 1M fua.img +if ! qemu-io -f raw -t none -c flush -c 'w -f -z 0 64k' fua.img; then + echo "$0: missing or broken qemu-io" + rm fua.img + exit 77 +fi + +# For easier debugging, dump the final log files before removing them +# on exit. +cleanup () +{ + echo "Log 1 file contents:" + cat fua1.log || : + echo "Log 2 file contents:" + cat fua2.log || : + echo "Log 3 file contents:" + cat fua3.log || : + echo "Log 4 file contents:" + cat fua4.log || : + rm -f $files + rm -rf $sockdir +} +cleanup_fn cleanup + +# Run four parallel nbdkit; to compare the logs and see what changes. +# 1: fuamode=none (default): client should send flush instead +# 2: fuamode=emulate: log shows that blocksize optimizes fua to flush +# 3: fuamode=native: log shows that blocksize preserves fua +# 4: fuamode=force: log shows that fua is always enabled +start_nbdkit -P fua1.pid -U $sockdir/fua1.sock \ + --filter=log --filter=fua \ + file logfile=fua1.log fua.img +start_nbdkit -P fua2.pid -U $sockdir/fua2.sock \ + --filter=blocksize --filter=log --filter=fua \ + file logfile=fua2.log fua.img fuamode=emulate maxdata=4k maxlen=4k +start_nbdkit -P fua3.pid -U $sockdir/fua3.sock \ + --filter=blocksize --filter=log --filter=fua \ + file logfile=fua3.log fua.img fuamode=native maxdata=4k maxlen=4k +start_nbdkit -P fua4.pid -U $sockdir/fua4.sock \ + --filter=fua --filter=log \ + file logfile=fua4.log fua.img fuamode=force + +# Perform a flush, write, and zero, first without then with FUA +for f in '' -f; do + for i in {1..4}; do + qemu-io -f raw -t none -c flush -c "w $f 0 64k" -c "w -z $f 64k 64k" \ + "nbd+unix://?socket=$sockdir/fua$i.sock" + done +done + +# Test 1: no fua sent over wire, qemu-io sent more flushes in place of fua +if grep 'fua=1' fua1.log; then + echo "filter should have prevented fua" + exit 1 +fi +test $(grep -c 'connection=1 Flush' fua1.log) -lt \ + $(grep -c 'connection=2 Flush' fua1.log) + +# Test 2: either last part of split has fua, or a flush is added, but +# all earlier parts of the transaction do not have fua +flush1=$(grep -c 'connection=1 Flush' fua2.log || :) +flush2=$(grep -c 'connection=2 Flush' fua2.log || :) +fua=$(grep -c 'connection=2.*fua=1 \.' fua2.log || :) +test $(( $flush2 - $flush1 + $fua )) = 2 + +# Test 3: every part of split has fua, and no flushes are added +flush1=$(grep -c 'connection=1 Flush' fua3.log || :) +flush2=$(grep -c 'connection=2 Flush' fua3.log || :) +test $flush1 = $flush2 +test $(grep -c 'connection=2.*fua=1 \.' fua3.log) = 32 + +# Test 4: flush is no-op, and every transaction has fua +if grep 'fua=0' fua4.log; then + echo "filter should have forced fua" + exit 1 +fi +if grep 'Flush' fua4.log; then + echo "filter should have elided flush" + exit 1 +fi diff --git a/tests/test-full.sh b/tests/test-full.sh new file mode 100755 index 0000000..6093169 --- /dev/null +++ b/tests/test-full.sh @@ -0,0 +1,59 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Test the full plugin. Note that this plugin causes libguestfs to +# hang so we have to use low level tools (qemu-io). + +source ./functions.sh +set -e + +requires qemu-io --version + +sock=`mktemp -u` +files="full.pid $sock full.out" +rm -f $files +cleanup_fn rm -f $files + +# Run nbdkit with the full plugin. +start_nbdkit -P full.pid -U $sock full size=1M + +# All reads should succeed. +qemu-io -f raw "nbd+unix://?socket=$sock" \ + -c 'r -v 0 512' \ + -c 'r -v 512 512' \ + -c 'r -v 1048064 512' + +# All writes should fail with the ENOSPC error. +! LANG=C qemu-io -f raw "nbd+unix://?socket=$sock" \ + -c 'w -P 1 0 512' \ + -c 'w -P 2 1048064 512' >& full.out +grep "No space left on device" full.out diff --git a/tests/test-gzip.c b/tests/test-gzip.c new file mode 100644 index 0000000..9e1229e --- /dev/null +++ b/tests/test-gzip.c @@ -0,0 +1,92 @@ +/* nbdkit + * Copyright (C) 2013 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> + +#include <guestfs.h> + +#include "test.h" + +int +main (int argc, char *argv[]) +{ + guestfs_h *g; + int r; + char *data; + + if (test_start_nbdkit ("gzip", "-r", "file=disk.gz", NULL) == -1) + exit (EXIT_FAILURE); + + g = guestfs_create (); + if (g == NULL) { + perror ("guestfs_create"); + exit (EXIT_FAILURE); + } + + r = guestfs_add_drive_opts (g, "", + GUESTFS_ADD_DRIVE_OPTS_READONLY, 1, + GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw", + GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd", + GUESTFS_ADD_DRIVE_OPTS_SERVER, server, + -1); + if (r == -1) + exit (EXIT_FAILURE); + + if (guestfs_launch (g) == -1) + exit (EXIT_FAILURE); + + /* disk.gz contains one partition and a test file called "hello.txt" */ + if (guestfs_mount_ro (g, "/dev/sda1", "/") == -1) + exit (EXIT_FAILURE); + + data = guestfs_cat (g, "/hello.txt"); + if (!data) + exit (EXIT_FAILURE); + + if (strcmp (data, "hello,world") != 0) { + fprintf (stderr, + "%s FAILED: unexpected content of /hello.txt file " + "(actual: %s, expected: \"hello,world\")\n", + program_name, data); + exit (EXIT_FAILURE); + } + + guestfs_close (g); + exit (EXIT_SUCCESS); +} diff --git a/tests/test-help-plugin.sh b/tests/test-help-plugin.sh new file mode 100755 index 0000000..373d28a --- /dev/null +++ b/tests/test-help-plugin.sh @@ -0,0 +1,41 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2014 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +set -e +source ./functions.sh + +output="$(nbdkit file --help)" +if [[ ! ( "$output" =~ "nbdkit file plugin" ) ]]; then + echo "$0: unexpected output from nbdkit file --help" + echo "$output" + exit 1 +fi diff --git a/tests/test-help.sh b/tests/test-help.sh new file mode 100755 index 0000000..cc9d145 --- /dev/null +++ b/tests/test-help.sh @@ -0,0 +1,61 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2014 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +output="$(nbdkit --help)" +if [[ ! ( "$output" =~ dump-config ) ]]; then + echo "$0: unexpected output from nbdkit --help" + echo "$output" + exit 1 +fi + +# Run nbdkit plugin --help for each plugin. +# However some of these tests are expected to fail. +test () +{ + vg=; [ "$NBDKIT_VALGRIND" = "1" ] && vg="-valgrind" + case "$1$vg" in + vddk | vddk-valgrind) + echo "$0: skipping $1$vg because VDDK cannot run without special environment variables" + ;; + python-valgrind | ruby-valgrind | tcl-valgrind) + echo "$0: skipping $1$vg because this language doesn't support valgrind" + ;; + *) + nbdkit $1 --help + ;; + esac +} +foreach_plugin test diff --git a/tests/test-ip.sh b/tests/test-ip.sh new file mode 100755 index 0000000..636d3d3 --- /dev/null +++ b/tests/test-ip.sh @@ -0,0 +1,71 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2016-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Every other test uses a Unix domain socket. This tests nbdkit over +# IPv4 and IPv6 localhost connections. + +source ./functions.sh +set -e + +requires ip -V +requires qemu-img --version +requires qemu-img info --image-opts driver=file,filename=functions.sh + +rm -f ip.pid ipv4.out ipv6.out +cleanup_fn rm -f ip.pid ipv4.out ipv6.out + +# Find an unused port to listen on. +pick_unused_port + +# By default nbdkit will listen on all available interfaces, ie. +# IPv4 and IPv6. +start_nbdkit -P ip.pid -p $port example1 +pid="$(cat ip.pid)" + +# Check the process exists. +kill -s 0 $pid + +# Check we can connect over the IPv4 loopback interface. +ipv4_lo="$(ip -o -4 addr show scope host)" +if test -n "$ipv4_lo"; then + qemu-img info --image-opts "file.driver=nbd,file.host=127.0.0.1,file.port=$port" > ipv4.out + cat ipv4.out + grep -sq "^virtual size: 100M" ipv4.out +fi + +# Check we can connect over the IPv6 loopback interface. +ipv6_lo="$(ip -o -6 addr show scope host)" +if test -n "$ipv6_lo"; then + qemu-img info --image-opts "file.driver=nbd,file.host=::1,file.port=$port" > ipv6.out + cat ipv6.out + grep -sq "^virtual size: 100M" ipv6.out +fi diff --git a/tests/test-iso.sh b/tests/test-iso.sh new file mode 100755 index 0000000..3dd925d --- /dev/null +++ b/tests/test-iso.sh @@ -0,0 +1,50 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Test ISO plugin. + +source ./functions.sh +set -e + +sock=`mktemp -u` +files="iso.pid $sock" +rm -f $files +cleanup_fn rm -f $files + +start_nbdkit -P iso.pid -U $sock iso $srcdir/../docs params="-JrT" + +# Check the ISO content. +guestfish --ro --format=raw -a "nbd://?socket=$sock" -m /dev/sda <<'EOF' + ll / + is-file /Makefile.am + is-file /nbdkit.pod +EOF diff --git a/tests/test-just-filter-header.c b/tests/test-just-filter-header.c new file mode 100644 index 0000000..2416e26 --- /dev/null +++ b/tests/test-just-filter-header.c @@ -0,0 +1,39 @@ +/* nbdkit + * Copyright (C) 2013-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <nbdkit-filter.h> + +int +main (int argc, char *argv[]) +{ + return 0; +} diff --git a/tests/test-just-plugin-header.c b/tests/test-just-plugin-header.c new file mode 100644 index 0000000..326d4d5 --- /dev/null +++ b/tests/test-just-plugin-header.c @@ -0,0 +1,39 @@ +/* nbdkit + * Copyright (C) 2013-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <nbdkit-plugin.h> + +int +main (int argc, char *argv[]) +{ + return 0; +} diff --git a/tests/test-lang-plugins.c b/tests/test-lang-plugins.c new file mode 100644 index 0000000..ffb1918 --- /dev/null +++ b/tests/test-lang-plugins.c @@ -0,0 +1,142 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> + +#include <guestfs.h> + +#include "test.h" + +int +main (int argc, char *argv[]) +{ + guestfs_h *g; + int r; + const char *s; + char *data; + + /* These languages currently fail completely when run under + * valgrind, so skip them. + */ + s = getenv ("NBDKIT_VALGRIND"); + if (s && strcmp (s, "1") == 0 && + (strcmp (LANG, "python") == 0 || + strcmp (LANG, "ruby") == 0 || + strcmp (LANG, "tcl") == 0)) { + fprintf (stderr, "%s test skipped under valgrind.\n", LANG); + exit (77); /* Tells automake to skip the test. */ + } + + if (test_start_nbdkit (LANG, SCRIPT, NULL) == -1) + exit (EXIT_FAILURE); + + g = guestfs_create (); + if (g == NULL) { + perror ("guestfs_create"); + exit (EXIT_FAILURE); + } + + r = guestfs_add_drive_opts (g, "", + GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw", + GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd", + GUESTFS_ADD_DRIVE_OPTS_SERVER, server, + -1); + if (r == -1) + exit (EXIT_FAILURE); + + if (guestfs_launch (g) == -1) + exit (EXIT_FAILURE); + + /* The test script creates an empty disk. We format it, write some + * data, and check we can read it back. + */ + + if (guestfs_part_disk (g, "/dev/sda", "mbr") == -1) + exit (EXIT_FAILURE); + if (guestfs_mkfs (g, "ext4", "/dev/sda1") == -1) + exit (EXIT_FAILURE); + + if (guestfs_mount_options (g, "discard", "/dev/sda1", "/") == -1) + exit (EXIT_FAILURE); + +#define filename "/hello.txt" +#define content "hello, people of the world" + + if (guestfs_write (g, filename, content, strlen (content)) == -1) + exit (EXIT_FAILURE); + + data = guestfs_cat (g, filename); + if (!data) + exit (EXIT_FAILURE); + + if (strcmp (data, content) != 0) { + fprintf (stderr, + "%s FAILED: unexpected content of %s file " + "(actual: %s, expected: %s)\n", + program_name, filename, data, content); + exit (EXIT_FAILURE); + } + free (data); + + /* Run sync to test flush path. */ + if (guestfs_sync (g) == -1) + exit (EXIT_FAILURE); + + /* Run fstrim to test trim path. However only recent versions of + * libguestfs have this, and it probably only works in recent + * versions of qemu. + */ +#ifdef GUESTFS_HAVE_FSTRIM + if (guestfs_fstrim (g, "/", -1) == -1) + exit (EXIT_FAILURE); +#endif + + /* Run fallocate(1) on the device to test zero path. */ + if (guestfs_umount (g, "/") == -1) + exit (EXIT_FAILURE); + const char *cmd[] = { "fallocate", "-nzl", "64k", "/dev/sda", NULL }; + data = guestfs_debug (g, "sh", (char **) cmd); + free (data); + + if (guestfs_shutdown (g) == -1) + exit (EXIT_FAILURE); + + guestfs_close (g); + exit (EXIT_SUCCESS); +} diff --git a/tests/test-layers-filter.c b/tests/test-layers-filter.c new file mode 100644 index 0000000..a8f4723 --- /dev/null +++ b/tests/test-layers-filter.c @@ -0,0 +1,273 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> + +#include <nbdkit-filter.h> + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + +#define str(s) #s +#define DEBUG_FUNCTION nbdkit_debug ("%s: %s", layer, __func__) + +static void +test_layers_filter_load (void) +{ + DEBUG_FUNCTION; +} + +static void +test_layers_filter_unload (void) +{ + DEBUG_FUNCTION; +} + +static int +test_layers_filter_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + DEBUG_FUNCTION; + return next (nxdata, key, value); +} + +static int +test_layers_filter_config_complete (nbdkit_next_config_complete *next, + void *nxdata) +{ + DEBUG_FUNCTION; + return next (nxdata); +} + +#define test_layers_filter_config_help \ + "test_layers_" layer "_config_help" + +static void * +test_layers_filter_open (nbdkit_next_open *next, void *nxdata, int readonly) +{ + static int handle; + + DEBUG_FUNCTION; + + if (next (nxdata, readonly) == -1) + return NULL; + + return &handle; +} + +static void +test_layers_filter_close (void *handle) +{ + DEBUG_FUNCTION; +} + +static int +test_layers_filter_prepare (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + DEBUG_FUNCTION; + return 0; +} + +static int +test_layers_filter_finalize (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + DEBUG_FUNCTION; + return 0; +} + +static int64_t +test_layers_filter_get_size (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + DEBUG_FUNCTION; + return next_ops->get_size (nxdata); +} + +static int +test_layers_filter_can_write (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + DEBUG_FUNCTION; + return next_ops->can_write (nxdata); +} + +static int +test_layers_filter_can_flush (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + DEBUG_FUNCTION; + return next_ops->can_flush (nxdata); +} + +static int +test_layers_filter_is_rotational (struct nbdkit_next_ops *next_ops, + void *nxdata, + void *handle) +{ + DEBUG_FUNCTION; + return next_ops->is_rotational (nxdata); +} + +static int +test_layers_filter_can_trim (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + DEBUG_FUNCTION; + return next_ops->can_trim (nxdata); +} + +static int +test_layers_filter_can_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + DEBUG_FUNCTION; + return next_ops->can_zero (nxdata); +} + +static int +test_layers_filter_can_fua (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle) +{ + DEBUG_FUNCTION; + return next_ops->can_fua (nxdata); +} + +static int +test_layers_filter_can_multi_conn (struct nbdkit_next_ops *next_ops, + void *nxdata, + void *handle) +{ + DEBUG_FUNCTION; + return next_ops->can_multi_conn (nxdata); +} + +static int +test_layers_filter_can_extents (struct nbdkit_next_ops *next_ops, + void *nxdata, + void *handle) +{ + DEBUG_FUNCTION; + return next_ops->can_extents (nxdata); +} + +static int +test_layers_filter_pread (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, void *buf, + uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + DEBUG_FUNCTION; + return next_ops->pread (nxdata, buf, count, offset, flags, err); +} + +static int +test_layers_filter_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + const void *buf, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + DEBUG_FUNCTION; + return next_ops->pwrite (nxdata, buf, count, offset, flags, err); +} + +static int +test_layers_filter_flush (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, + uint32_t flags, int *err) +{ + DEBUG_FUNCTION; + return next_ops->flush (nxdata, flags, err); +} + +static int +test_layers_filter_trim (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + DEBUG_FUNCTION; + return next_ops->trim (nxdata, count, offset, flags, err); +} + +static int +test_layers_filter_zero (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, int *err) +{ + DEBUG_FUNCTION; + return next_ops->zero (nxdata, count, offset, flags, err); +} + +static int +test_layers_filter_extents (struct nbdkit_next_ops *next_ops, void *nxdata, + void *handle, uint32_t count, uint64_t offset, + uint32_t flags, struct nbdkit_extents *extents, + int *err) +{ + DEBUG_FUNCTION; + return next_ops->extents (nxdata, count, offset, flags, extents, err); +} + +static struct nbdkit_filter filter = { + .name = "testlayers" layer, + .version = PACKAGE_VERSION, + .load = test_layers_filter_load, + .unload = test_layers_filter_unload, + .config = test_layers_filter_config, + .config_complete = test_layers_filter_config_complete, + .config_help = test_layers_filter_config_help, + .open = test_layers_filter_open, + .close = test_layers_filter_close, + .prepare = test_layers_filter_prepare, + .finalize = test_layers_filter_finalize, + .get_size = test_layers_filter_get_size, + .can_write = test_layers_filter_can_write, + .can_flush = test_layers_filter_can_flush, + .is_rotational = test_layers_filter_is_rotational, + .can_trim = test_layers_filter_can_trim, + .can_zero = test_layers_filter_can_zero, + .can_fua = test_layers_filter_can_fua, + .can_multi_conn = test_layers_filter_can_multi_conn, + .can_extents = test_layers_filter_can_extents, + .pread = test_layers_filter_pread, + .pwrite = test_layers_filter_pwrite, + .flush = test_layers_filter_flush, + .trim = test_layers_filter_trim, + .zero = test_layers_filter_zero, + .extents = test_layers_filter_extents, +}; + +NBDKIT_REGISTER_FILTER(filter) diff --git a/tests/test-layers-plugin.c b/tests/test-layers-plugin.c new file mode 100644 index 0000000..bd74a4a --- /dev/null +++ b/tests/test-layers-plugin.c @@ -0,0 +1,235 @@ +/* nbdkit + * Copyright (C) 2018-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <string.h> + +#define NBDKIT_API_VERSION 2 +#include <nbdkit-plugin.h> + +#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL + +#define DEBUG_FUNCTION nbdkit_debug ("%s", __func__) + +static void +test_layers_plugin_load (void) +{ + DEBUG_FUNCTION; +} + +static void +test_layers_plugin_unload (void) +{ + DEBUG_FUNCTION; +} + +static int +test_layers_plugin_config (const char *key, const char *value) +{ + DEBUG_FUNCTION; + return 0; +} + +static int +test_layers_plugin_config_complete (void) +{ + DEBUG_FUNCTION; + return 0; +} + +#define test_layers_plugin_config_help "test_layers_plugin_config_help" + +static void * +test_layers_plugin_open (int readonly) +{ + static int handle; + + DEBUG_FUNCTION; + return &handle; +} + +static void +test_layers_plugin_close (void *handle) +{ + DEBUG_FUNCTION; +} + +static int64_t +test_layers_plugin_get_size (void *handle) +{ + DEBUG_FUNCTION; + return 1024; +} + +static int +test_layers_plugin_can_write (void *handle) +{ + DEBUG_FUNCTION; + return 1; +} + +static int +test_layers_plugin_can_flush (void *handle) +{ + DEBUG_FUNCTION; + return 1; +} + +static int +test_layers_plugin_is_rotational (void *handle) +{ + DEBUG_FUNCTION; + return 1; +} + +static int +test_layers_plugin_can_trim (void *handle) +{ + DEBUG_FUNCTION; + return 1; +} + +static int +test_layers_plugin_can_zero (void *handle) +{ + DEBUG_FUNCTION; + return 1; +} + +static int +test_layers_plugin_can_fua (void *handle) +{ + DEBUG_FUNCTION; + return NBDKIT_FUA_NATIVE; +} + +static int +test_layers_plugin_can_multi_conn (void *handle) +{ + DEBUG_FUNCTION; + return 1; +} + +static int +test_layers_plugin_can_extents (void *handle) +{ + DEBUG_FUNCTION; + return 1; +} + +static int +test_layers_plugin_pread (void *handle, + void *buf, uint32_t count, uint64_t offset, + uint32_t flags) +{ + DEBUG_FUNCTION; + memset (buf, 0, count); + return 0; +} + +static int +test_layers_plugin_pwrite (void *handle, + const void *buf, uint32_t count, uint64_t offset, + uint32_t flags) +{ + DEBUG_FUNCTION; + return 0; +} + +static int +test_layers_plugin_flush (void *handle, uint32_t flags) +{ + DEBUG_FUNCTION; + return 0; +} + +static int +test_layers_plugin_trim (void *handle, + uint32_t count, uint64_t offset, uint32_t flags) +{ + DEBUG_FUNCTION; + return 0; +} + +static int +test_layers_plugin_zero (void *handle, + uint32_t count, uint64_t offset, uint32_t flags) +{ + DEBUG_FUNCTION; + return 0; +} + +static int +test_layers_plugin_extents (void *handle, + uint32_t count, uint64_t offset, uint32_t flags, + struct nbdkit_extents *extents) +{ + DEBUG_FUNCTION; + return 0; +} + +static struct nbdkit_plugin plugin = { + .name = "testlayersplugin", + .version = PACKAGE_VERSION, + .load = test_layers_plugin_load, + .unload = test_layers_plugin_unload, + .config = test_layers_plugin_config, + .config_complete = test_layers_plugin_config_complete, + .config_help = test_layers_plugin_config_help, + .open = test_layers_plugin_open, + .close = test_layers_plugin_close, + .get_size = test_layers_plugin_get_size, + .can_write = test_layers_plugin_can_write, + .can_flush = test_layers_plugin_can_flush, + .is_rotational = test_layers_plugin_is_rotational, + .can_trim = test_layers_plugin_can_trim, + .can_zero = test_layers_plugin_can_zero, + .can_fua = test_layers_plugin_can_fua, + .can_multi_conn = test_layers_plugin_can_multi_conn, + .can_extents = test_layers_plugin_can_extents, + .pread = test_layers_plugin_pread, + .pwrite = test_layers_plugin_pwrite, + .flush = test_layers_plugin_flush, + .trim = test_layers_plugin_trim, + .zero = test_layers_plugin_zero, + .extents = test_layers_plugin_extents, + /* In this plugin, errno is preserved properly along error return + * paths from failed system calls. + */ + .errno_is_preserved = 1, +}; + +NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/tests/test-layers.c b/tests/test-layers.c new file mode 100644 index 0000000..3ed0c35 --- /dev/null +++ b/tests/test-layers.c @@ -0,0 +1,693 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* This test constructs a plugin and 3 layers of filters: + * + * NBD ┌─────────┐ ┌─────────┐ ┌─────────┐ ┌────────┐ + * client ───▶│ filter3 │───▶│ filter2 │───▶│ filter1 │───▶│ plugin │ + * request └─────────┘ └─────────┘ └─────────┘ └────────┘ + * + * We then run every possible request and ensure that each method in + * each filter and the plugin is called in the right order. This + * cannot be done with libguestfs or qemu-io, instead we must make NBD + * client requests over a socket directly. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdarg.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> +#include <errno.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <sys/wait.h> + +#include <pthread.h> + +#include "byte-swapping.h" +#include "exit-with-parent.h" +#include "protocol.h" + +/* Declare program_name. */ +#if HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME == 1 +#include <errno.h> +#define program_name program_invocation_short_name +#else +#define program_name "nbdkit" +#endif + +static void *start_log_capture (void *); +static void log_verify_seen (const char *msg); +static void log_verify_seen_in_order (const char *msg, ...) + __attribute__((sentinel)); +static void log_free (void); + +int +main (int argc, char *argv[]) +{ + pid_t pid; + int sfd[2]; + int pfd[2]; + int err; + pthread_t thread; + int sock; + struct new_handshake handshake; + uint32_t cflags; + struct new_option option; + struct new_handshake_finish handshake_finish; + uint16_t eflags; + struct request request; + struct simple_reply reply; + char data[512]; + +#ifndef HAVE_EXIT_WITH_PARENT + printf ("%s: this test requires --exit-with-parent functionality\n", + program_name); + exit (77); +#endif + + /* Socket for communicating with nbdkit. */ + if (socketpair (AF_LOCAL, SOCK_STREAM, 0, sfd) == -1) { + perror ("socketpair"); + exit (EXIT_FAILURE); + } + sock = sfd[0]; + + /* Start nbdkit. */ + if (pipe (pfd) == -1) { /* Pipe for log messages. */ + perror ("pipe"); + exit (EXIT_FAILURE); + } + pid = fork (); + if (pid == 0) { /* Child. */ + dup2 (sfd[1], 0); + dup2 (sfd[1], 1); + close (pfd[0]); + dup2 (pfd[1], 2); + close (pfd[1]); + execlp ("nbdkit", "nbdkit", + "--exit-with-parent", + "-fvns", + /* Because of asynchronous shutdown with threads, finalize + * isn't reliably called unless we disable parallel. + */ + "-t", "1", + "--filter", ".libs/test-layers-filter3.so", + "--filter", ".libs/test-layers-filter2.so", + "--filter", ".libs/test-layers-filter1.so", + ".libs/test-layers-plugin.so", + "foo=bar", + NULL); + perror ("exec: nbdkit"); + _exit (EXIT_FAILURE); + } + + /* Parent (test). */ + close (sfd[1]); + close (pfd[1]); + + fprintf (stderr, "%s: nbdkit running\n", program_name); + + /* Start a thread which will just listen on the pipe and + * place the log messages in a memory buffer. + */ + err = pthread_create (&thread, NULL, start_log_capture, &pfd[0]); + if (err) { + errno = err; + perror ("pthread_create"); + exit (EXIT_FAILURE); + } + err = pthread_detach (thread); + if (err) { + errno = err; + perror ("pthread_detach"); + exit (EXIT_FAILURE); + } + + /* Note for the purposes of this test we're not very careful about + * checking for errors (except for the bare minimum) or handling the + * full NBD protocol. This is because we can be certain about + * exactly which server we are connecting to and what it supports. + * Don't use this as example code for connecting to NBD servers. + * + * Expect to receive newstyle handshake. + */ + if (recv (sock, &handshake, sizeof handshake, + MSG_WAITALL) != sizeof handshake) { + perror ("recv: handshake"); + exit (EXIT_FAILURE); + } + if (memcmp (handshake.nbdmagic, "NBDMAGIC", 8) != 0 || + be64toh (handshake.version) != NEW_VERSION) { + fprintf (stderr, "%s: unexpected NBDMAGIC or version\n", + program_name); + exit (EXIT_FAILURE); + } + + /* Send client flags. */ + cflags = htobe32 (be16toh (handshake.gflags)); + if (send (sock, &cflags, sizeof cflags, 0) != sizeof cflags) { + perror ("send: flags"); + exit (EXIT_FAILURE); + } + + /* Send NBD_OPT_EXPORT_NAME with no export name. */ + option.version = htobe64 (NEW_VERSION); + option.option = htobe32 (NBD_OPT_EXPORT_NAME); + option.optlen = htobe32 (0); + if (send (sock, &option, sizeof option, 0) != sizeof option) { + perror ("send: option"); + exit (EXIT_FAILURE); + } + + /* Receive handshake finish. */ + if (recv (sock, &handshake_finish, sizeof handshake_finish - 124, + MSG_WAITALL) != sizeof handshake_finish - 124) { + perror ("recv: handshake finish"); + exit (EXIT_FAILURE); + } + + /* Verify export size (see tests/test-layers-plugin.c). */ + if (be64toh (handshake_finish.exportsize) != 1024) { + fprintf (stderr, "%s: unexpected export size %" PRIu64 " != 1024\n", + program_name, be64toh (handshake_finish.exportsize)); + exit (EXIT_FAILURE); + } + + /* Verify export flags. */ + eflags = be16toh (handshake_finish.eflags); + if ((eflags & NBD_FLAG_READ_ONLY) != 0) { + fprintf (stderr, "%s: unexpected eflags: NBD_FLAG_READ_ONLY not clear\n", + program_name); + exit (EXIT_FAILURE); + } + if ((eflags & NBD_FLAG_SEND_FLUSH) == 0) { + fprintf (stderr, "%s: unexpected eflags: NBD_FLAG_SEND_FLUSH not set\n", + program_name); + exit (EXIT_FAILURE); + } + if ((eflags & NBD_FLAG_SEND_FUA) == 0) { + fprintf (stderr, "%s: unexpected eflags: NBD_FLAG_SEND_FUA not set\n", + program_name); + exit (EXIT_FAILURE); + } + if ((eflags & NBD_FLAG_ROTATIONAL) == 0) { + fprintf (stderr, "%s: unexpected eflags: NBD_FLAG_ROTATIONAL not set\n", + program_name); + exit (EXIT_FAILURE); + } + if ((eflags & NBD_FLAG_SEND_TRIM) == 0) { + fprintf (stderr, "%s: unexpected eflags: NBD_FLAG_SEND_TRIM not set\n", + program_name); + exit (EXIT_FAILURE); + } + if ((eflags & NBD_FLAG_SEND_WRITE_ZEROES) == 0) { + fprintf (stderr, + "%s: unexpected eflags: NBD_FLAG_SEND_WRITE_ZEROES not set\n", + program_name); + exit (EXIT_FAILURE); + } + + /* Sleep briefly to allow the log to catch up. */ + sleep (1); + + /* Verify expected log messages were seen during the handshake and + * option negotiation phases. + */ + + /* Plugin and 3 filters should run the load method in any order. */ + log_verify_seen ("test_layers_plugin_load"); + log_verify_seen ("filter1: test_layers_filter_load"); + log_verify_seen ("filter2: test_layers_filter_load"); + log_verify_seen ("filter3: test_layers_filter_load"); + + /* config methods called in order. */ + log_verify_seen_in_order + ("testlayersfilter3: config key=foo, value=bar", + "filter3: test_layers_filter_config", + "testlayersfilter2: config key=foo, value=bar", + "filter2: test_layers_filter_config", + "testlayersfilter1: config key=foo, value=bar", + "filter1: test_layers_filter_config", + "testlayersplugin: config key=foo, value=bar", + "test_layers_plugin_config", + NULL); + + /* config_complete methods called in order. */ + log_verify_seen_in_order + ("testlayersfilter3: config_complete", + "filter3: test_layers_filter_config_complete", + "testlayersfilter2: config_complete", + "filter2: test_layers_filter_config_complete", + "testlayersfilter1: config_complete", + "filter1: test_layers_filter_config_complete", + "testlayersplugin: config_complete", + "test_layers_plugin_config_complete", + NULL); + + /* open methods called in order. */ + log_verify_seen_in_order + ("testlayersfilter3: open readonly=0", + "filter3: test_layers_filter_open", + "testlayersfilter2: open readonly=0", + "filter2: test_layers_filter_open", + "testlayersfilter1: open readonly=0", + "filter1: test_layers_filter_open", + "testlayersplugin: open readonly=0", + "test_layers_plugin_open", + NULL); + + /* prepare methods called in order. + * + * Note that prepare methods only exist for filters, and they must + * be called from inner to outer (but finalize methods below are + * called the other way around). + */ + log_verify_seen_in_order + ("filter1: test_layers_filter_prepare", + "filter2: test_layers_filter_prepare", + "filter3: test_layers_filter_prepare", + NULL); + + /* get_size methods called in order. */ + log_verify_seen_in_order + ("filter3: test_layers_filter_get_size", + "filter2: test_layers_filter_get_size", + "filter1: test_layers_filter_get_size", + "test_layers_plugin_get_size", + NULL); + + /* can_* / is_* methods called in order. */ + log_verify_seen_in_order + ("filter3: test_layers_filter_can_write", + "filter2: test_layers_filter_can_write", + "filter1: test_layers_filter_can_write", + "test_layers_plugin_can_write", + NULL); + log_verify_seen_in_order + ("filter3: test_layers_filter_can_zero", + "filter2: test_layers_filter_can_zero", + "filter1: test_layers_filter_can_zero", + "test_layers_plugin_can_zero", + NULL); + log_verify_seen_in_order + ("filter3: test_layers_filter_can_trim", + "filter2: test_layers_filter_can_trim", + "filter1: test_layers_filter_can_trim", + "test_layers_plugin_can_trim", + NULL); + log_verify_seen_in_order + ("filter3: test_layers_filter_can_fua", + "filter2: test_layers_filter_can_fua", + "filter1: test_layers_filter_can_fua", + "test_layers_plugin_can_fua", + NULL); + log_verify_seen_in_order + ("filter3: test_layers_filter_can_flush", + "filter2: test_layers_filter_can_flush", + "filter1: test_layers_filter_can_flush", + "test_layers_plugin_can_flush", + NULL); + log_verify_seen_in_order + ("filter3: test_layers_filter_is_rotational", + "filter2: test_layers_filter_is_rotational", + "filter1: test_layers_filter_is_rotational", + "test_layers_plugin_is_rotational", + NULL); + log_verify_seen_in_order + ("filter3: test_layers_filter_can_multi_conn", + "filter2: test_layers_filter_can_multi_conn", + "filter1: test_layers_filter_can_multi_conn", + "test_layers_plugin_can_multi_conn", + NULL); + log_verify_seen_in_order + ("filter3: test_layers_filter_can_extents", + "filter2: test_layers_filter_can_extents", + "filter1: test_layers_filter_can_extents", + "test_layers_plugin_can_extents", + NULL); + + fprintf (stderr, "%s: protocol connected\n", program_name); + + /* Send one command of each type. */ + request.magic = htobe32 (NBD_REQUEST_MAGIC); + request.handle = htobe64 (0); + + request.type = htobe16 (NBD_CMD_READ); + request.offset = htobe64 (0); + request.count = htobe32 (512); + request.flags = htobe16 (0); + if (send (sock, &request, sizeof request, 0) != sizeof request) { + perror ("send: NBD_CMD_READ"); + exit (EXIT_FAILURE); + } + if (recv (sock, &reply, sizeof reply, MSG_WAITALL) != sizeof reply) { + perror ("recv: NBD_CMD_READ reply"); + exit (EXIT_FAILURE); + } + if (reply.error != NBD_SUCCESS) { + fprintf (stderr, "%s: NBD_CMD_READ failed with %d\n", + program_name, reply.error); + exit (EXIT_FAILURE); + } + if (recv (sock, data, sizeof data, MSG_WAITALL) != sizeof data) { + perror ("recv: NBD_CMD_READ data"); + exit (EXIT_FAILURE); + } + + sleep (1); + log_verify_seen_in_order + ("testlayersfilter3: pread count=512 offset=0 flags=0x0", + "filter3: test_layers_filter_pread", + "testlayersfilter2: pread count=512 offset=0 flags=0x0", + "filter2: test_layers_filter_pread", + "testlayersfilter1: pread count=512 offset=0 flags=0x0", + "filter1: test_layers_filter_pread", + "testlayersplugin: debug: pread count=512 offset=0", + "test_layers_plugin_pread", + NULL); + + request.type = htobe16 (NBD_CMD_WRITE); + request.offset = htobe64 (0); + request.count = htobe32 (512); + request.flags = htobe16 (0); + if (send (sock, &request, sizeof request, 0) != sizeof request) { + perror ("send: NBD_CMD_WRITE"); + exit (EXIT_FAILURE); + } + if (send (sock, data, sizeof data, 0) != sizeof data) { + perror ("send: NBD_CMD_WRITE data"); + exit (EXIT_FAILURE); + } + if (recv (sock, &reply, sizeof reply, MSG_WAITALL) != sizeof reply) { + perror ("recv: NBD_CMD_WRITE"); + exit (EXIT_FAILURE); + } + if (reply.error != NBD_SUCCESS) { + fprintf (stderr, "%s: NBD_CMD_WRITE failed with %d\n", + program_name, reply.error); + exit (EXIT_FAILURE); + } + + sleep (1); + log_verify_seen_in_order + ("testlayersfilter3: pwrite count=512 offset=0 flags=0x0", + "filter3: test_layers_filter_pwrite", + "testlayersfilter2: pwrite count=512 offset=0 flags=0x0", + "filter2: test_layers_filter_pwrite", + "testlayersfilter1: pwrite count=512 offset=0 flags=0x0", + "filter1: test_layers_filter_pwrite", + "testlayersplugin: debug: pwrite count=512 offset=0", + "test_layers_plugin_pwrite", + NULL); + + request.type = htobe16 (NBD_CMD_FLUSH); + request.offset = htobe64 (0); + request.count = htobe32 (0); + request.flags = htobe16 (0); + if (send (sock, &request, sizeof request, 0) != sizeof request) { + perror ("send: NBD_CMD_FLUSH"); + exit (EXIT_FAILURE); + } + if (recv (sock, &reply, sizeof reply, MSG_WAITALL) != sizeof reply) { + perror ("recv: NBD_CMD_FLUSH"); + exit (EXIT_FAILURE); + } + if (reply.error != NBD_SUCCESS) { + fprintf (stderr, "%s: NBD_CMD_FLUSH failed with %d\n", + program_name, reply.error); + exit (EXIT_FAILURE); + } + + sleep (1); + log_verify_seen_in_order + ("testlayersfilter3: flush flags=0x0", + "filter3: test_layers_filter_flush", + "testlayersfilter2: flush flags=0x0", + "filter2: test_layers_filter_flush", + "testlayersfilter1: flush flags=0x0", + "filter1: test_layers_filter_flush", + "testlayersplugin: debug: flush", + "test_layers_plugin_flush", + NULL); + + request.type = htobe16 (NBD_CMD_TRIM); + request.offset = htobe64 (0); + request.count = htobe32 (512); + request.flags = htobe16 (0); + if (send (sock, &request, sizeof request, 0) != sizeof request) { + perror ("send: NBD_CMD_TRIM"); + exit (EXIT_FAILURE); + } + if (recv (sock, &reply, sizeof reply, MSG_WAITALL) != sizeof reply) { + perror ("recv: NBD_CMD_TRIM"); + exit (EXIT_FAILURE); + } + if (reply.error != NBD_SUCCESS) { + fprintf (stderr, "%s: NBD_CMD_TRIM failed with %d\n", + program_name, reply.error); + exit (EXIT_FAILURE); + } + + sleep (1); + log_verify_seen_in_order + ("testlayersfilter3: trim count=512 offset=0 flags=0x0", + "filter3: test_layers_filter_trim", + "testlayersfilter2: trim count=512 offset=0 flags=0x0", + "filter2: test_layers_filter_trim", + "testlayersfilter1: trim count=512 offset=0 flags=0x0", + "filter1: test_layers_filter_trim", + "testlayersplugin: debug: trim count=512 offset=0", + "test_layers_plugin_trim", + NULL); + + request.type = htobe16 (NBD_CMD_WRITE_ZEROES); + request.offset = htobe64 (0); + request.count = htobe32 (512); + request.flags = htobe16 (0); + if (send (sock, &request, sizeof request, 0) != sizeof request) { + perror ("send: NBD_CMD_WRITE_ZEROES"); + exit (EXIT_FAILURE); + } + if (recv (sock, &reply, sizeof reply, MSG_WAITALL) != sizeof reply) { + perror ("recv: NBD_CMD_WRITE_ZEROES"); + exit (EXIT_FAILURE); + } + if (reply.error != NBD_SUCCESS) { + fprintf (stderr, "%s: NBD_CMD_WRITE_ZEROES failed with %d\n", + program_name, reply.error); + exit (EXIT_FAILURE); + } + + sleep (1); + log_verify_seen_in_order + ("testlayersfilter3: zero count=512 offset=0 flags=0x1", + "filter3: test_layers_filter_zero", + "testlayersfilter2: zero count=512 offset=0 flags=0x1", + "filter2: test_layers_filter_zero", + "testlayersfilter1: zero count=512 offset=0 flags=0x1", + "filter1: test_layers_filter_zero", + "testlayersplugin: debug: zero count=512 offset=0 may_trim=1 fua=0", + "test_layers_plugin_zero", + NULL); + + /* XXX We should test NBD_CMD_BLOCK_STATUS here. However it + * requires that we negotiate structured replies and base:allocation + * in the handshake, and the format of the reply is more complex + * than what we expect in this naive test. + */ + + /* Close the connection. */ + fprintf (stderr, "%s: closing the connection\n", program_name); + request.type = htobe16 (NBD_CMD_DISC); + request.offset = htobe64 (0); + request.count = htobe32 (0); + request.flags = htobe16 (0); + if (send (sock, &request, sizeof request, 0) != sizeof request) { + perror ("send: NBD_CMD_DISC"); + exit (EXIT_FAILURE); + } + /* (no reply from NBD_CMD_DISC) */ + close (sock); + + /* Clean up the child process. */ + if (waitpid (pid, NULL, 0) == -1) + perror ("waitpid"); + + /* finalize methods called in reverse order of prepare */ + sleep (1); + log_verify_seen_in_order + ("filter3: test_layers_filter_finalize", + "filter2: test_layers_filter_finalize", + "filter1: test_layers_filter_finalize", + NULL); + + /* close methods called in order */ + log_verify_seen_in_order + ("filter3: test_layers_filter_close", + "filter2: test_layers_filter_close", + "filter1: test_layers_filter_close", + "test_layers_plugin_close", + NULL); + + /* unload methods should be run in any order. */ + log_verify_seen ("test_layers_plugin_unload"); + log_verify_seen ("filter1: test_layers_filter_unload"); + log_verify_seen ("filter2: test_layers_filter_unload"); + log_verify_seen ("filter3: test_layers_filter_unload"); + + log_free (); + + exit (EXIT_SUCCESS); +} + +/* The log from nbdkit is captured in a separate thread. */ +static char *log = NULL; +static size_t log_len = 0; +static pthread_mutex_t log_lock = PTHREAD_MUTEX_INITIALIZER; + +static void * +start_log_capture (void *arg) +{ + int fd = *(int *)arg; + size_t allocated = 0; + ssize_t r; + + for (;;) { + pthread_mutex_lock (&log_lock); + if (allocated <= log_len) { + allocated += 4096; + log = realloc (log, allocated); + if (log == NULL) { + perror ("log: realloc"); + exit (EXIT_FAILURE); + } + } + pthread_mutex_unlock (&log_lock); + + r = read (fd, &log[log_len], allocated-log_len); + if (r == -1) { + perror ("log: read"); + exit (EXIT_FAILURE); + } + if (r == 0) + break; + + /* Dump the log as we receive it to stderr, for debugging. */ + if (write (2, &log[log_len], r) == -1) + perror ("log: write"); + + pthread_mutex_lock (&log_lock); + log_len += r; + pthread_mutex_unlock (&log_lock); + } + + /* nbdkit closed the connection. */ + pthread_exit (NULL); +} + +/* These functions are called from the main thread to verify messages + * appeared as expected in the log. + * + * NB: The log buffer is NOT \0-terminated. + */ + +static void no_message_error (const char *msg) __attribute__((noreturn)); + +static void +no_message_error (const char *msg) +{ + fprintf (stderr, "%s: did not find expected message \"%s\"\n", + program_name, msg); + exit (EXIT_FAILURE); +} + +static void +log_verify_seen (const char *msg) +{ + pthread_mutex_lock (&log_lock); + if (memmem (log, log_len, msg, strlen (msg)) == NULL) + no_message_error (msg); + pthread_mutex_unlock (&log_lock); +} + +static void messages_out_of_order (const char *msg1, const char *msg2) + __attribute__((noreturn)); + +static void +messages_out_of_order (const char *msg1, const char *msg2) +{ + fprintf (stderr, "%s: message \"%s\" expected before message \"%s\"\n", + program_name, msg1, msg2); + exit (EXIT_FAILURE); +} + +static void +log_verify_seen_in_order (const char *msg, ...) +{ + va_list args; + void *prev, *curr; + const char *prev_msg, *curr_msg; + + pthread_mutex_lock (&log_lock); + + prev = memmem (log, log_len, msg, strlen (msg)); + if (prev == NULL) no_message_error (msg); + prev_msg = msg; + + va_start (args, msg); + while ((curr_msg = va_arg (args, char *)) != NULL) { + curr = memmem (log, log_len, curr_msg, strlen (curr_msg)); + if (curr == NULL) no_message_error (curr_msg); + if (prev > curr) messages_out_of_order (prev_msg, curr_msg); + prev_msg = curr_msg; + prev = curr; + } + va_end (args); + + pthread_mutex_unlock (&log_lock); +} + +static void +log_free (void) +{ + pthread_mutex_lock (&log_lock); + free (log); + log = NULL; + log_len = 0; + pthread_mutex_unlock (&log_lock); +} diff --git a/tests/test-layers.sh b/tests/test-layers.sh new file mode 100755 index 0000000..83d1a9e --- /dev/null +++ b/tests/test-layers.sh @@ -0,0 +1,54 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +files="test-layers.out" +rm -f $files +cleanup_fn rm -f $files + +cmd="nbdkit --filter=.libs/test-layers-filter3.so --filter=.libs/test-layers-filter2.so --filter=.libs/test-layers-filter1.so .libs/test-layers-plugin.so" + +$cmd --help > test-layers.out +cat test-layers.out ||: +grep test_layers_filter3_config_help test-layers.out +grep test_layers_filter2_config_help test-layers.out +grep test_layers_filter1_config_help test-layers.out +grep test_layers_plugin_config_help test-layers.out + +$cmd --dump-plugin > test-layers.out +cat test-layers.out ||: +grep name=testlayersplugin test-layers.out +grep has_load=1 test-layers.out +grep has_zero=1 test-layers.out diff --git a/tests/test-linuxdisk-copy-out.sh b/tests/test-linuxdisk-copy-out.sh new file mode 100755 index 0000000..6d85965 --- /dev/null +++ b/tests/test-linuxdisk-copy-out.sh @@ -0,0 +1,75 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Test the linuxdisk plugin with captive nbdkit, as described +# in the man page. + +source ./functions.sh +set -e +set -x + +requires qemu-img --version + +files="linuxdisk-copy-out.img + linuxdisk-copy-out.test1 linuxdisk-copy-out.test2 + linuxdisk-copy-out.test3 linuxdisk-copy-out.test4" +rm -f $files +cleanup_fn rm -f $files + +nbdkit -f -v -U - \ + --filter=partition \ + linuxdisk $srcdir/../plugins partition=1 label=ROOT \ + --run 'qemu-img convert $nbd linuxdisk-copy-out.img' + +# Check the disk content. +guestfish --ro -a linuxdisk-copy-out.img -m /dev/sda <<EOF +# Check some known files and directories exist. + ll / + ll /linuxdisk + is-dir /linuxdisk + is-file /linuxdisk/Makefile.am + +# This reads out all the directory entries and all file contents. + tar-out / - | cat >/dev/null + +# Download some files and compare to local copies. + download /linuxdisk/Makefile linuxdisk-copy-out.test1 + download /linuxdisk/Makefile.am linuxdisk-copy-out.test2 + download /linuxdisk/nbdkit-linuxdisk-plugin.pod linuxdisk-copy-out.test3 + download /linuxdisk/filesystem.c linuxdisk-copy-out.test4 +EOF + +# Compare downloaded files to local versions. +cmp linuxdisk-copy-out.test1 $srcdir/../plugins/linuxdisk/Makefile +cmp linuxdisk-copy-out.test2 $srcdir/../plugins/linuxdisk/Makefile.am +cmp linuxdisk-copy-out.test3 $srcdir/../plugins/linuxdisk/nbdkit-linuxdisk-plugin.pod +cmp linuxdisk-copy-out.test4 $srcdir/../plugins/linuxdisk/filesystem.c diff --git a/tests/test-linuxdisk.sh b/tests/test-linuxdisk.sh new file mode 100755 index 0000000..899e1ae --- /dev/null +++ b/tests/test-linuxdisk.sh @@ -0,0 +1,94 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Test the linuxdisk plugin. + +source ./functions.sh +set -e +set -x + +requires mkfifo --version + +sock=`mktemp -u` +d=linuxdisk.d +rm -rf $d +cleanup_fn rm -rf $d +cleanup_fn rm -f $sock + +# Create a test directory with some regular files, subdirectories and +# special files. +mkdir $d +mkfifo $d/fifo +mkdir $d/sub +cp $srcdir/Makefile.am $d/sub/Makefile.am +ln $d/sub/Makefile.am $d/sub/hardlink +ln -s $d/sub/Makefile.am $d/sub/symlink + +# It would be nice to use the Unix domain socket to test that the +# socket gets created, but in fact that won't work because this socket +# isn't created until after the plugin creates the virtual disk. +start_nbdkit -P $d/linuxdisk.pid \ + -U $sock \ + linuxdisk $d + +# Check the disk content. +guestfish --ro --format=raw -a "nbd://?socket=$sock" -m /dev/sda1 <<EOF + ll / + ll /sub + +# Check regular files exist. + is-file /sub/Makefile.am + is-file /sub/hardlink +# XXX Test sparse files in future. + +# Check the specials exist. + is-fifo /fifo + is-symlink /sub/symlink +# XXX Test sockets, etc. in future. + +# Check hard linked files. + lstatns /sub/Makefile.am | cat > $d/nlink.1 + lstatns /sub/hardlink | cat > $d/nlink.2 + +# This reads out all the directory entries and all file contents. + tar-out / - | cat >/dev/null + +# Download file and compare to local copy. + download /sub/Makefile.am $d/Makefile.am +EOF + +# Check the two hard linked files have st_nlink == 2. +grep "st_nlink: 2" $d/nlink.1 +grep "st_nlink: 2" $d/nlink.2 + +# Compare downloaded file to local version. +cmp $d/Makefile.am $srcdir/Makefile.am diff --git a/tests/test-log.sh b/tests/test-log.sh new file mode 100755 index 0000000..c6e13f5 --- /dev/null +++ b/tests/test-log.sh @@ -0,0 +1,70 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e + +sock=`mktemp -u` +files="log.img log.log $sock log.pid" +rm -f $files + +# Test that qemu-io works +truncate -s 10M log.img +if ! qemu-io -f raw -c 'w 1M 2M' log.img; then + echo "$0: missing or broken qemu-io" + exit 77 +fi + +# Run nbdkit with logging enabled to file. +echo '# My log' > log.log +start_nbdkit -P log.pid -U $sock --filter=log file log.img \ + logfile=log.log logappend=1 + +# For easier debugging, dump the final log files before removing them +# on exit. +cleanup () +{ + echo "Log file contents:" + cat log.log + rm -f $files +} +cleanup_fn cleanup + +# Write, then read some data in the file. +qemu-io -f raw -c 'w -P 11 1M 2M' "nbd+unix://?socket=$sock" +qemu-io -r -f raw -c 'r -P 11 2M 1M' "nbd+unix://?socket=$sock" + +# The log should have been appended, preserving our marker. +grep '# My log' log.log +# The log should show a write on connection 1, and read on connection 2. +grep 'connection=1 Write id=1 offset=0x100000 count=0x200000 ' log.log +grep 'connection=2 Read id=1 offset=0x200000 count=0x100000 ' log.log diff --git a/tests/test-memory-largest-for-qemu.sh b/tests/test-memory-largest-for-qemu.sh new file mode 100755 index 0000000..ff1dd50 --- /dev/null +++ b/tests/test-memory-largest-for-qemu.sh @@ -0,0 +1,216 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Test the memory plugin with the largest possible size supported +# by qemu and nbdkit. + +source ./functions.sh +set -e + +requires qemu-io --version + +sock=`mktemp -u` +files="memory-largest-for-qemu.out memory-largest-for-qemu.pid $sock" +rm -f $files +cleanup_fn rm -f $files + +# Run nbdkit with memory plugin. +# size = (2^63-1) & ~511 which is the largest supported by qemu. +start_nbdkit -P memory-largest-for-qemu.pid -U $sock \ + memory size=9223372036854775296 + +# Write some stuff to the beginning, middle and end. +qemu-io -f raw "nbd+unix://?socket=$sock" \ + -c 'w -P 1 0 512' \ + -c 'w -P 2 1000000001 65536' \ + -c 'w -P 3 9223372036854774784 512' + +qemu-io -r -f raw "nbd+unix://?socket=$sock" \ + -c 'r -v 0 512' | grep -E '^[[:xdigit:]]+:' > memory-largest-for-qemu.out +if [ "$(cat memory-largest-for-qemu.out)" != "00000000: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +00000010: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +00000020: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +00000030: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +00000040: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +00000050: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +00000060: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +00000070: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +00000080: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +00000090: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +000000a0: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +000000b0: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +000000c0: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +000000d0: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +000000e0: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +000000f0: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +00000100: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +00000110: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +00000120: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +00000130: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +00000140: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +00000150: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +00000160: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +00000170: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +00000180: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +00000190: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +000001a0: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +000001b0: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +000001c0: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +000001d0: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +000001e0: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................ +000001f0: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................" ] +then + echo "$0: unexpected memory:" + cat memory-largest-for-qemu.out + exit 1 +fi + +qemu-io -r -f raw "nbd+unix://?socket=$sock" \ + -c 'r -v 1000000001 512' | grep -E '^[[:xdigit:]]+:' > memory-largest-for-qemu.out +if [ "$(cat memory-largest-for-qemu.out)" != "3b9aca01: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9aca11: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9aca21: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9aca31: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9aca41: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9aca51: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9aca61: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9aca71: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9aca81: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9aca91: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9acaa1: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9acab1: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9acac1: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9acad1: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9acae1: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9acaf1: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9acb01: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9acb11: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9acb21: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9acb31: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9acb41: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9acb51: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9acb61: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9acb71: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9acb81: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9acb91: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9acba1: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9acbb1: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9acbc1: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9acbd1: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9acbe1: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................ +3b9acbf1: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................" ] +then + echo "$0: unexpected memory:" + cat memory-largest-for-qemu.out + exit 1 +fi + +# This block of memory was not set, so it should read back as zeroes. +qemu-io -r -f raw "nbd+unix://?socket=$sock" \ + -c 'r -v 2000000000 512' | grep -E '^[[:xdigit:]]+:' > memory-largest-for-qemu.out +if [ "$(cat memory-largest-for-qemu.out)" != "77359400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +77359410: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +77359420: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +77359430: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +77359440: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +77359450: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +77359460: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +77359470: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +77359480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +77359490: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +773594a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +773594b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +773594c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +773594d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +773594e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +773594f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +77359500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +77359510: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +77359520: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +77359530: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +77359540: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +77359550: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +77359560: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +77359570: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +77359580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +77359590: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +773595a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +773595b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +773595c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +773595d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +773595e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +773595f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................" ] +then + echo "$0: unexpected memory:" + cat memory-largest-for-qemu.out + exit 1 +fi + +qemu-io -r -f raw "nbd+unix://?socket=$sock" \ + -c 'r -v 9223372036854774784 512' | grep -E '^[[:xdigit:]]+:' > memory-largest-for-qemu.out +if [ "$(cat memory-largest-for-qemu.out)" != "7ffffffffffffc00: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffc10: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffc20: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffc30: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffc40: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffc50: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffc60: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffc70: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffc80: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffc90: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffca0: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffcb0: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffcc0: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffcd0: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffce0: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffcf0: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffd00: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffd10: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffd20: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffd30: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffd40: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffd50: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffd60: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffd70: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffd80: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffd90: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffda0: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffdb0: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffdc0: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffdd0: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffde0: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................ +7ffffffffffffdf0: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................" ] +then + echo "$0: unexpected memory:" + cat memory-largest-for-qemu.out + exit 1 +fi diff --git a/tests/test-memory-largest.sh b/tests/test-memory-largest.sh new file mode 100755 index 0000000..cb81d5a --- /dev/null +++ b/tests/test-memory-largest.sh @@ -0,0 +1,57 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Test the memory plugin with the largest possible size supported +# by nbdkit. + +source ./functions.sh +set -e + +requires qemu-io --version + +sock=`mktemp -u` +files="memory-largest.out memory-largest.pid $sock" +rm -f $files +cleanup_fn rm -f $files + +# Run nbdkit with memory plugin. +# size = 2^63-1 +start_nbdkit -P memory-largest.pid -U $sock \ + memory size=9223372036854775807 + +# qemu cannot open this image! +# +# can't open device nbd+unix://?socket=$sock: Could not get image size: File too large +# +# Therefore we skip the remainder of this test (in effect, testing +# only that nbdkit can create the file). +exit 77 diff --git a/tests/test-memory.c b/tests/test-memory.c new file mode 100644 index 0000000..7b33979 --- /dev/null +++ b/tests/test-memory.c @@ -0,0 +1,118 @@ +/* nbdkit + * Copyright (C) 2017 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> + +#include <guestfs.h> + +#include "test.h" + +int +main (int argc, char *argv[]) +{ + guestfs_h *g; + int r; + char *data; + + if (test_start_nbdkit ("-D", "memory.dir=1", + "memory", "size=100M", NULL) == -1) + exit (EXIT_FAILURE); + + g = guestfs_create (); + if (g == NULL) { + perror ("guestfs_create"); + exit (EXIT_FAILURE); + } + + r = guestfs_add_drive_opts (g, "", + GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw", + GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd", + GUESTFS_ADD_DRIVE_OPTS_SERVER, server, + -1); + if (r == -1) + exit (EXIT_FAILURE); + + if (guestfs_launch (g) == -1) + exit (EXIT_FAILURE); + + if (guestfs_part_disk (g, "/dev/sda", "mbr") == -1) + exit (EXIT_FAILURE); + if (guestfs_mkfs (g, "ext4", "/dev/sda1") == -1) + exit (EXIT_FAILURE); + + if (guestfs_mount_options (g, "discard", "/dev/sda1", "/") == -1) + exit (EXIT_FAILURE); + +#define filename "/hello.txt" +#define content "hello, people of the world" + + if (guestfs_write (g, filename, content, strlen (content)) == -1) + exit (EXIT_FAILURE); + + /* Force write through to and read back from disk. */ + if (guestfs_sync (g) == -1 || guestfs_drop_caches (g, 3) == -1) + exit (EXIT_FAILURE); + + data = guestfs_cat (g, filename); + if (!data) + exit (EXIT_FAILURE); + + if (strcmp (data, content) != 0) { + fprintf (stderr, + "%s FAILED: unexpected content of %s file " + "(actual: %s, expected: %s)\n", + program_name, filename, data, content); + exit (EXIT_FAILURE); + } + +#ifdef GUESTFS_HAVE_FSTRIM + /* Delete the file and fstrim to test zeroing/trimming. */ + if (guestfs_rm (g, filename) == -1) + exit (EXIT_FAILURE); + + if (guestfs_fstrim (g, "/", -1) == -1) + exit (EXIT_FAILURE); +#endif + + if (guestfs_shutdown (g) == -1) + exit (EXIT_FAILURE); + + guestfs_close (g); + exit (EXIT_SUCCESS); +} diff --git a/tests/test-nbd.c b/tests/test-nbd.c new file mode 100644 index 0000000..a8c4067 --- /dev/null +++ b/tests/test-nbd.c @@ -0,0 +1,119 @@ +/* nbdkit + * Copyright (C) 2017 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> + +#include <guestfs.h> + +#include "test.h" + +int +main (int argc, char *argv[]) +{ + guestfs_h *g; + int r; + char *data; + char *sockarg = NULL; + size_t i, size; + + /* If wrapping once is good, why not do it twice! Shows that we can + * convert between either style of server options. */ + if (test_start_nbdkit ("-o", "file", "file-data", NULL) == -1) + exit (EXIT_FAILURE); + + if (asprintf (&sockarg, "socket=%s", sock) < 0) { + perror ("asprintf"); + exit (EXIT_FAILURE); + } + if (test_start_nbdkit ("-e", "wrap", "nbd", sockarg, NULL) == -1) + exit (EXIT_FAILURE); + free (sockarg); + + if (asprintf (&sockarg, "socket=%s", sock) < 0) { + perror ("asprintf"); + exit (EXIT_FAILURE); + } + if (test_start_nbdkit ("-o", "nbd", sockarg, "export=wrap", NULL) == -1) + exit (EXIT_FAILURE); + free (sockarg); + + g = guestfs_create (); + if (g == NULL) { + perror ("guestfs_create"); + exit (EXIT_FAILURE); + } + + r = guestfs_add_drive_opts (g, "", + GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw", + GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd", + GUESTFS_ADD_DRIVE_OPTS_SERVER, server, + -1); + if (r == -1) + exit (EXIT_FAILURE); + + if (guestfs_launch (g) == -1) + exit (EXIT_FAILURE); + + /* Check the data in the file is \x01-\x08 repeated 512 times. */ + data = guestfs_pread_device (g, "/dev/sda", 8 * 512, 0, &size); + if (!data) + exit (EXIT_FAILURE); + if (size != 8 * 512) { + fprintf (stderr, + "%s FAILED: unexpected size (actual: %zu, expected: 512)\n", + program_name, size); + exit (EXIT_FAILURE); + } + + for (i = 0; i < 512 * 8; i += 8) { + if (data[i] != 1 || data[i+1] != 2 || + data[i+2] != 3 || data[i+3] != 4 || + data[i+4] != 5 || data[i+5] != 6 || + data[i+6] != 7 || data[i+7] != 8) { + fprintf (stderr, "%s FAILED: unexpected data returned at offset %zu\n", + program_name, i); + exit (EXIT_FAILURE); + } + } + + free (data); + + guestfs_close (g); + exit (EXIT_SUCCESS); +} diff --git a/tests/test-newstyle.c b/tests/test-newstyle.c new file mode 100644 index 0000000..818badd --- /dev/null +++ b/tests/test-newstyle.c @@ -0,0 +1,104 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> + +#include <guestfs.h> + +#include "test.h" + +#define EXPORTNAME "/" + +int +main (int argc, char *argv[]) +{ + guestfs_h *g; + int r; + char *data; + size_t i, size; + + if (test_start_nbdkit ("-e", EXPORTNAME, + "-n", "file", "file-data", NULL) == -1) + exit (EXIT_FAILURE); + + g = guestfs_create (); + if (g == NULL) { + perror ("guestfs_create"); + exit (EXIT_FAILURE); + } + + /* Using any exportname causes qemu to use the newstyle protocol. */ + r = guestfs_add_drive_opts (g, EXPORTNAME, + GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw", + GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd", + GUESTFS_ADD_DRIVE_OPTS_SERVER, server, + -1); + if (r == -1) + exit (EXIT_FAILURE); + + if (guestfs_launch (g) == -1) + exit (EXIT_FAILURE); + + /* Check the data in the file is \x01-\x08 repeated 512 times. */ + data = guestfs_pread_device (g, "/dev/sda", 8 * 512, 0, &size); + if (!data) + exit (EXIT_FAILURE); + if (size != 8 * 512) { + fprintf (stderr, + "%s FAILED: unexpected size (actual: %zu, expected: 512)\n", + program_name, size); + exit (EXIT_FAILURE); + } + + for (i = 0; i < 512 * 8; i += 8) { + if (data[i] != 1 || data[i+1] != 2 || + data[i+2] != 3 || data[i+3] != 4 || + data[i+4] != 5 || data[i+5] != 6 || + data[i+6] != 7 || data[i+7] != 8) { + fprintf (stderr, "%s FAILED: unexpected data returned at offset %zu\n", + program_name, i); + exit (EXIT_FAILURE); + } + } + + free (data); + + guestfs_close (g); + exit (EXIT_SUCCESS); +} diff --git a/tests/test-nozero.sh b/tests/test-nozero.sh new file mode 100755 index 0000000..c96cf1c --- /dev/null +++ b/tests/test-nozero.sh @@ -0,0 +1,137 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e + +sock1=`mktemp -u` +sock2=`mktemp -u` +sock3=`mktemp -u` +sock4=`mktemp -u` +sock5a=`mktemp -u` +sock5b=`mktemp -u` +files="nozero1.img nozero1.log $sock1 nozero1.pid + nozero2.img nozero2.log $sock2 nozero2.pid + nozero3.img nozero3.log $sock3 nozero3.pid + nozero4.img nozero4.log $sock4 nozero4.pid + nozero5.img nozero5a.log nozero5b.log $sock5a $sock5b + nozero5a.pid nozero5b.pid" +rm -f $files + +# Prep images, and check that qemu-io understands the actions we plan on +# doing, and that zero with trim results in a sparse image. +for f in {0..1023}; do printf '%1024s' . >> nozero1.img; done +cp nozero1.img nozero2.img +cp nozero1.img nozero3.img +cp nozero1.img nozero4.img +cp nozero1.img nozero5.img +if ! qemu-io -f raw -d unmap -c 'w -z -u 0 1M' nozero1.img; then + echo "$0: missing or broken qemu-io" + rm nozero?.img + exit 77 +fi +if test "$(stat -c %b nozero1.img)" = "$(stat -c %b nozero2.img)"; then + echo "$0: can't trim file by writing zeros" + rm nozero?.img + exit 77 +fi +cp nozero2.img nozero1.img + +# For easier debugging, dump the final log files before removing them +# on exit. +cleanup () +{ + echo "Log 1 file contents:" + cat nozero1.log || : + echo "Log 2 file contents:" + cat nozero2.log || : + echo "Log 3 file contents:" + cat nozero3.log || : + echo "Log 4 file contents:" + cat nozero4.log || : + echo "Log 5a file contents:" + cat nozero5a.log || : + echo "Log 5b file contents:" + cat nozero5b.log || : + rm -f $files +} +cleanup_fn cleanup + +# Run four parallel nbdkit; to compare the logs and see what changes. +# 1: unfiltered, to check that qemu-io sends ZERO request and plugin trims +# 2: log before filter with zeromode=none (default), to ensure no ZERO request +# 3: log before filter with zeromode=emulate, to ensure ZERO from client +# 4: log after filter with zeromode=emulate, to ensure no ZERO to plugin +# 5a/b: both sides of nbd plugin: even though server side does not advertise +# ZERO, the client side still exposes it, and just skips calling nbd's .zero +start_nbdkit -P nozero1.pid -U $sock1 --filter=log \ + file logfile=nozero1.log nozero1.img +start_nbdkit -P nozero2.pid -U $sock2 --filter=log --filter=nozero \ + file logfile=nozero2.log nozero2.img +start_nbdkit -P nozero3.pid -U $sock3 --filter=log --filter=nozero \ + file logfile=nozero3.log nozero3.img zeromode=emulate +start_nbdkit -P nozero4.pid -U $sock4 --filter=nozero --filter=log \ + file logfile=nozero4.log nozero4.img zeromode=emulate +start_nbdkit -P nozero5a.pid -U $sock5a --filter=log --filter=nozero \ + file logfile=nozero5a.log nozero5.img +start_nbdkit -P nozero5b.pid -U $sock5b --filter=log \ + nbd logfile=nozero5b.log socket=$sock5a + +# Perform the zero write. +qemu-io -f raw -c 'w -z -u 0 1M' "nbd+unix://?socket=$sock1" +qemu-io -f raw -c 'w -z -u 0 1M' "nbd+unix://?socket=$sock2" +qemu-io -f raw -c 'w -z -u 0 1M' "nbd+unix://?socket=$sock3" +qemu-io -f raw -c 'w -z -u 0 1M' "nbd+unix://?socket=$sock4" +qemu-io -f raw -c 'w -z -u 0 1M' "nbd+unix://?socket=$sock5b" + +# Check for expected ZERO vs. WRITE results +grep 'connection=1 Zero' nozero1.log +if grep 'connection=1 Zero' nozero2.log; then + echo "filter should have prevented zero" + exit 1 +fi +grep 'connection=1 Zero' nozero3.log +if grep 'connection=1 Zero' nozero4.log; then + echo "filter should have converted zero into write" + exit 1 +fi +grep 'connection=1 Zero' nozero5b.log +if grep 'connection=1 Zero' nozero5a.log; then + echo "nbdkit should have converted zero into write before nbd plugin" + exit 1 +fi + +# Sanity check on contents - all 5 files should read identically +cmp nozero1.img nozero2.img +cmp nozero2.img nozero3.img +cmp nozero3.img nozero4.img +cmp nozero4.img nozero5.img diff --git a/tests/test-null-extents.sh b/tests/test-null-extents.sh new file mode 100755 index 0000000..47d3d0f --- /dev/null +++ b/tests/test-null-extents.sh @@ -0,0 +1,75 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +requires jq --version +requires qemu-img --version +requires qemu-img map --help + +out="test-null-extents.out" +expected="test-null-extents.expected" +files="$out $expected" +rm -f $files +cleanup_fn rm -f $files + +do_test () +{ + # We use jq to normalize the output and convert it to plain text. + nbdkit -U - \ + null size="$1" \ + --run 'qemu-img map -f raw --output=json $nbd' | + jq -c '.[] | {start:.start, length:.length, data:.data, zero:.zero}' \ + > $out + if ! cmp $out $expected; then + echo "$0: output did not match expected data" + echo "expected:" + cat $expected + echo "output:" + cat $out + exit 1 + fi +} + +# Non-zero sized null disk. +cat > $expected <<'EOF' +{"start":0,"length":65536,"data":false,"zero":true} +EOF +do_test 64K + +# Zero sized null disk. +cat > $expected <<'EOF' +{"start":0,"length":0,"data":false,"zero":false} +EOF +do_test 0 diff --git a/tests/test-null.c b/tests/test-null.c new file mode 100644 index 0000000..5153315 --- /dev/null +++ b/tests/test-null.c @@ -0,0 +1,131 @@ +/* nbdkit + * Copyright (C) 2017 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> + +#include <guestfs.h> + +#include "test.h" + +static char data[257] = + "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" + "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" + "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" + "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"; + +int +main (int argc, char *argv[]) +{ + guestfs_h *g; + int r; + char *rdata; + size_t rsize; + size_t i; + + if (test_start_nbdkit ("null", "size=100M", NULL) == -1) + exit (EXIT_FAILURE); + + g = guestfs_create (); + if (g == NULL) { + perror ("guestfs_create"); + exit (EXIT_FAILURE); + } + + r = guestfs_add_drive_opts (g, "", + GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw", + GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd", + GUESTFS_ADD_DRIVE_OPTS_SERVER, server, + -1); + if (r == -1) + exit (EXIT_FAILURE); + + if (guestfs_launch (g) == -1) + exit (EXIT_FAILURE); + + /* All writes should read back as zeroes. However we have to + * reopen the handle to stop the libguestfs kernel from caching + * the written data. + */ + if (guestfs_pwrite_device (g, "/dev/sda", data, 256, 1024) == -1) + exit (EXIT_FAILURE); + + if (guestfs_shutdown (g) == -1) + exit (EXIT_FAILURE); + + guestfs_close (g); + + g = guestfs_create (); + if (g == NULL) { + perror ("guestfs_create"); + exit (EXIT_FAILURE); + } + + r = guestfs_add_drive_opts (g, "", + GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw", + GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd", + GUESTFS_ADD_DRIVE_OPTS_SERVER, server, + -1); + if (r == -1) + exit (EXIT_FAILURE); + + if (guestfs_launch (g) == -1) + exit (EXIT_FAILURE); + + rdata = guestfs_pread_device (g, "/dev/sda", 2048, 0, &rsize); + if (rdata == NULL) + exit (EXIT_FAILURE); + if (rsize != 2048) { + fprintf (stderr, "test-null: short read\n"); + exit (EXIT_FAILURE); + } + + for (i = 0; i < 2048; ++i) { + if (rdata[i] != 0) { + fprintf (stderr, "test-null: unexpected non-zero data read\n"); + exit (EXIT_FAILURE); + } + } + free (rdata); + + if (guestfs_shutdown (g) == -1) + exit (EXIT_FAILURE); + + guestfs_close (g); + exit (EXIT_SUCCESS); +} diff --git a/tests/test-ocaml.c b/tests/test-ocaml.c new file mode 100644 index 0000000..505e32b --- /dev/null +++ b/tests/test-ocaml.c @@ -0,0 +1,136 @@ +/* nbdkit + * Copyright (C) 2014 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> + +#include <guestfs.h> + +#include "test.h" + +int +main (int argc, char *argv[]) +{ + guestfs_h *g; + int r; + int64_t size; + char *data; + + if (test_start_nbdkit ("./test-ocaml-plugin.so", "a=1", "b=2", "c=3", + NULL) == -1) + exit (EXIT_FAILURE); + + g = guestfs_create (); + if (g == NULL) { + perror ("guestfs_create"); + exit (EXIT_FAILURE); + } + + r = guestfs_add_drive_opts (g, "", + GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw", + GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd", + GUESTFS_ADD_DRIVE_OPTS_SERVER, server, + -1); + if (r == -1) + exit (EXIT_FAILURE); + + if (guestfs_launch (g) == -1) + exit (EXIT_FAILURE); + + /* Check the size is exactly 1M. */ + size = guestfs_blockdev_getsize64 (g, "/dev/sda"); + if (size != 1024 * 1024) { + fprintf (stderr, "%s FAILED: unexpected size " + "(actual: %" PRIi64 ", expected: %d)\n", + program_name, size, 1024*1024); + exit (EXIT_FAILURE); + } + + if (guestfs_part_disk (g, "/dev/sda", "mbr") == -1) + exit (EXIT_FAILURE); + if (guestfs_mkfs (g, "ext2", "/dev/sda1") == -1) + exit (EXIT_FAILURE); + + if (guestfs_mount_options (g, "discard", "/dev/sda1", "/") == -1) + exit (EXIT_FAILURE); + +#define filename "/hello.txt" +#define content "hello, people of the world" + + if (guestfs_write (g, filename, content, strlen (content)) == -1) + exit (EXIT_FAILURE); + + data = guestfs_cat (g, filename); + if (!data) + exit (EXIT_FAILURE); + + if (strcmp (data, content) != 0) { + fprintf (stderr, + "%s FAILED: unexpected content of %s file " + "(actual: %s, expected: %s)\n", + program_name, filename, data, content); + exit (EXIT_FAILURE); + } + free (data); + + /* Run sync to test flush path. */ + if (guestfs_sync (g) == -1) + exit (EXIT_FAILURE); + + /* Run fstrim to test trim path. However only recent versions of + * libguestfs have this, and it probably only works in recent + * versions of qemu. + */ +#ifdef GUESTFS_HAVE_FSTRIM + if (guestfs_fstrim (g, "/", -1) == -1) + exit (EXIT_FAILURE); +#endif + + /* Run fallocate(1) on the device to test zero path. */ + if (guestfs_umount (g, "/") == -1) + exit (EXIT_FAILURE); + const char *cmd[] = { "fallocate", "-nzl", "64k", "/dev/sda", NULL }; + data = guestfs_debug (g, "sh", (char **) cmd); + free (data); + + if (guestfs_shutdown (g) == -1) + exit (EXIT_FAILURE); + + guestfs_close (g); + exit (EXIT_SUCCESS); +} diff --git a/tests/test-offset-extents.sh b/tests/test-offset-extents.sh new file mode 100755 index 0000000..957ad41 --- /dev/null +++ b/tests/test-offset-extents.sh @@ -0,0 +1,98 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Unfortunately the output of this test depends on the PAGE_SIZE +# defined in common/sparse/sparse.c and would change (breaking the +# test) if we ever changed that definition. + +source ./functions.sh +set -e +set -x + +requires jq --version +requires qemu-img --version +requires qemu-img map --help + +out="test-offset-extents.out" +expected="test-offset-extents.expected" +files="$out $expected" +rm -f $files +cleanup_fn rm -f $files + +do_test () +{ + # We use jq to normalize the output and convert it to plain text. + nbdkit -U - \ + --filter=offset \ + data data="$1" size="$2" \ + offset=1024 range=65536 \ + --run 'qemu-img map -f raw --output=json $nbd' | + jq -c '.[] | {start:.start, length:.length, data:.data, zero:.zero}' \ + > $out + if ! cmp $out $expected; then + echo "$0: output did not match expected data" + echo "expected:" + cat $expected + echo "output:" + cat $out + exit 1 + fi +} + +# Completely sparse disk. +cat > $expected <<'EOF' +{"start":0,"length":65536,"data":false,"zero":true} +EOF +do_test "" 1M + +# Completely allocated disk. +# +# We have to write a non-zero byte @32767 so that the sparse array +# doesn't detect the range from 1024-32767 as being all zeroes. +cat > $expected <<'EOF' +{"start":0,"length":65536,"data":true,"zero":false} +EOF +do_test "1 @32767 1 @32768 1 @65536 1 @98304 1" 128K + +# Allocated data at the start of a 1M disk. +cat > $expected <<'EOF' +{"start":0,"length":31744,"data":true,"zero":false} +{"start":31744,"length":33792,"data":false,"zero":true} +EOF +do_test "1 @32767 1" 1M + +# Allocated zeroes at the start of the disk. +cat > $expected <<'EOF' +{"start":0,"length":31744,"data":true,"zero":true} +{"start":31744,"length":33792,"data":false,"zero":true} +EOF +do_test "0" 1M diff --git a/tests/test-offset.c b/tests/test-offset.c new file mode 100644 index 0000000..e50c8dc --- /dev/null +++ b/tests/test-offset.c @@ -0,0 +1,157 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> +#include <fcntl.h> +#include <errno.h> +#include <sys/types.h> +#include <sys/stat.h> + +#include <guestfs.h> + +#include "test.h" + +static uint8_t buf[1024*1024]; + +static void +check_buf (void) +{ + size_t i; + + for (i = 0; i < sizeof buf; i += 2) { + if (buf[i] != 0x55 || buf[i+1] != 0xAA) { + fprintf (stderr, "%s FAILED: file overwritten outside offset/range\n", + program_name); + exit (EXIT_FAILURE); + } + } +} + +int +main (int argc, char *argv[]) +{ + guestfs_h *g; + int r, fd; + char *data; + + /* offset-data (created by tests/Makefile.am) is a 10 MB file + * containing test pattern data 0x55AA repeated. We use the middle + * 8 MB to create a partition table and filesystem, and check + * afterwards that the test pattern in the first and final megabyte + * has not been overwritten. + */ + if (test_start_nbdkit ("--filter", "offset", + "file", "offset-data", + "offset=1M", "range=8M", + NULL) == -1) + exit (EXIT_FAILURE); + + g = guestfs_create (); + if (g == NULL) { + perror ("guestfs_create"); + exit (EXIT_FAILURE); + } + + r = guestfs_add_drive_opts (g, "", + GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw", + GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd", + GUESTFS_ADD_DRIVE_OPTS_SERVER, server, + -1); + if (r == -1) + exit (EXIT_FAILURE); + + if (guestfs_launch (g) == -1) + exit (EXIT_FAILURE); + + if (guestfs_part_disk (g, "/dev/sda", "mbr") == -1) + exit (EXIT_FAILURE); + if (guestfs_mkfs (g, "ext2", "/dev/sda1") == -1) + exit (EXIT_FAILURE); + + if (guestfs_mount (g, "/dev/sda1", "/") == -1) + exit (EXIT_FAILURE); + +#define filename "/hello.txt" +#define content "hello, people of the world" + + if (guestfs_write (g, filename, content, strlen (content)) == -1) + exit (EXIT_FAILURE); + + data = guestfs_cat (g, filename); + if (!data) + exit (EXIT_FAILURE); + + if (strcmp (data, content) != 0) { + fprintf (stderr, + "%s FAILED: unexpected content of %s file " + "(actual: %s, expected: %s)\n", + program_name, filename, data, content); + exit (EXIT_FAILURE); + } + + if (guestfs_fill_dir (g, "/", 1000) == -1) + exit (EXIT_FAILURE); + + if (guestfs_shutdown (g) == -1) + exit (EXIT_FAILURE); + + guestfs_close (g); + + /* Check the first and final megabyte of test patterns has not been + * overwritten in the underlying file. + */ + fd = open ("offset-data", O_RDONLY|O_CLOEXEC); + if (fd == -1) { + perror ("open: offset-data"); + exit (EXIT_FAILURE); + } + if (pread (fd, buf, sizeof buf, 0) != sizeof buf) { + fprintf (stderr, "pread: short read or error (%d)\n", errno); + exit (EXIT_FAILURE); + } + check_buf (); + if (pread (fd, buf, sizeof buf, 9*1024*1024) != sizeof buf) { + fprintf (stderr, "pread: short read or error (%d)\n", errno); + exit (EXIT_FAILURE); + } + check_buf (); + close (fd); + + exit (EXIT_SUCCESS); +} diff --git a/tests/test-offset2.sh b/tests/test-offset2.sh new file mode 100755 index 0000000..8754096 --- /dev/null +++ b/tests/test-offset2.sh @@ -0,0 +1,91 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Additional test of the offset filter using the pattern plugin. + +source ./functions.sh +set -e +set -x + +requires qemu-io --version + +sock=`mktemp -u` +files="offset2.out offset2.pid $sock" +rm -f $files +cleanup_fn rm -f $files + +# Run nbdkit with pattern plugin and offset filter in front. +# 8070450532247927809 = 7E - 1023 +start_nbdkit -P offset2.pid -U $sock \ + --filter=offset \ + pattern size=7E \ + offset=8070450532247927809 range=512 + +qemu-io -r -f raw "nbd+unix://?socket=$sock" \ + -c 'r -v 0 512' | grep -E '^[[:xdigit:]]+:' > offset2.out +if [ "$(cat offset2.out)" != "00000000: ff ff ff ff ff fc 00 6f ff ff ff ff ff fc 08 6f .......o.......o +00000010: ff ff ff ff ff fc 10 6f ff ff ff ff ff fc 18 6f .......o.......o +00000020: ff ff ff ff ff fc 20 6f ff ff ff ff ff fc 28 6f .......o.......o +00000030: ff ff ff ff ff fc 30 6f ff ff ff ff ff fc 38 6f ......0o......8o +00000040: ff ff ff ff ff fc 40 6f ff ff ff ff ff fc 48 6f .......o......Ho +00000050: ff ff ff ff ff fc 50 6f ff ff ff ff ff fc 58 6f ......Po......Xo +00000060: ff ff ff ff ff fc 60 6f ff ff ff ff ff fc 68 6f .......o......ho +00000070: ff ff ff ff ff fc 70 6f ff ff ff ff ff fc 78 6f ......po......xo +00000080: ff ff ff ff ff fc 80 6f ff ff ff ff ff fc 88 6f .......o.......o +00000090: ff ff ff ff ff fc 90 6f ff ff ff ff ff fc 98 6f .......o.......o +000000a0: ff ff ff ff ff fc a0 6f ff ff ff ff ff fc a8 6f .......o.......o +000000b0: ff ff ff ff ff fc b0 6f ff ff ff ff ff fc b8 6f .......o.......o +000000c0: ff ff ff ff ff fc c0 6f ff ff ff ff ff fc c8 6f .......o.......o +000000d0: ff ff ff ff ff fc d0 6f ff ff ff ff ff fc d8 6f .......o.......o +000000e0: ff ff ff ff ff fc e0 6f ff ff ff ff ff fc e8 6f .......o.......o +000000f0: ff ff ff ff ff fc f0 6f ff ff ff ff ff fc f8 6f .......o.......o +00000100: ff ff ff ff ff fd 00 6f ff ff ff ff ff fd 08 6f .......o.......o +00000110: ff ff ff ff ff fd 10 6f ff ff ff ff ff fd 18 6f .......o.......o +00000120: ff ff ff ff ff fd 20 6f ff ff ff ff ff fd 28 6f .......o.......o +00000130: ff ff ff ff ff fd 30 6f ff ff ff ff ff fd 38 6f ......0o......8o +00000140: ff ff ff ff ff fd 40 6f ff ff ff ff ff fd 48 6f .......o......Ho +00000150: ff ff ff ff ff fd 50 6f ff ff ff ff ff fd 58 6f ......Po......Xo +00000160: ff ff ff ff ff fd 60 6f ff ff ff ff ff fd 68 6f .......o......ho +00000170: ff ff ff ff ff fd 70 6f ff ff ff ff ff fd 78 6f ......po......xo +00000180: ff ff ff ff ff fd 80 6f ff ff ff ff ff fd 88 6f .......o.......o +00000190: ff ff ff ff ff fd 90 6f ff ff ff ff ff fd 98 6f .......o.......o +000001a0: ff ff ff ff ff fd a0 6f ff ff ff ff ff fd a8 6f .......o.......o +000001b0: ff ff ff ff ff fd b0 6f ff ff ff ff ff fd b8 6f .......o.......o +000001c0: ff ff ff ff ff fd c0 6f ff ff ff ff ff fd c8 6f .......o.......o +000001d0: ff ff ff ff ff fd d0 6f ff ff ff ff ff fd d8 6f .......o.......o +000001e0: ff ff ff ff ff fd e0 6f ff ff ff ff ff fd e8 6f .......o.......o +000001f0: ff ff ff ff ff fd f0 6f ff ff ff ff ff fd f8 6f .......o.......o" ] +then + echo "$0: unexpected pattern:" + cat offset2.out + exit 1 +fi diff --git a/tests/test-oldstyle.c b/tests/test-oldstyle.c new file mode 100644 index 0000000..0e7f85e --- /dev/null +++ b/tests/test-oldstyle.c @@ -0,0 +1,101 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> + +#include <guestfs.h> + +#include "test.h" + +int +main (int argc, char *argv[]) +{ + guestfs_h *g; + int r; + char *data; + size_t i, size; + + if (test_start_nbdkit ("-o", "file", "file-data", NULL) == -1) + exit (EXIT_FAILURE); + + g = guestfs_create (); + if (g == NULL) { + perror ("guestfs_create"); + exit (EXIT_FAILURE); + } + + /* Using exportname = "" causes qemu to use the oldstyle protocol. */ + r = guestfs_add_drive_opts (g, "", + GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw", + GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd", + GUESTFS_ADD_DRIVE_OPTS_SERVER, server, + -1); + if (r == -1) + exit (EXIT_FAILURE); + + if (guestfs_launch (g) == -1) + exit (EXIT_FAILURE); + + /* Check the data in the file is \x01-\x08 repeated 512 times. */ + data = guestfs_pread_device (g, "/dev/sda", 8 * 512, 0, &size); + if (!data) + exit (EXIT_FAILURE); + if (size != 8 * 512) { + fprintf (stderr, + "%s FAILED: unexpected size (actual: %zu, expected: 512)\n", + program_name, size); + exit (EXIT_FAILURE); + } + + for (i = 0; i < 512 * 8; i += 8) { + if (data[i] != 1 || data[i+1] != 2 || + data[i+2] != 3 || data[i+3] != 4 || + data[i+4] != 5 || data[i+5] != 6 || + data[i+6] != 7 || data[i+7] != 8) { + fprintf (stderr, "%s FAILED: unexpected data returned at offset %zu\n", + program_name, i); + exit (EXIT_FAILURE); + } + } + + free (data); + + guestfs_close (g); + exit (EXIT_SUCCESS); +} diff --git a/tests/test-parallel-file.sh b/tests/test-parallel-file.sh new file mode 100755 index 0000000..3012384 --- /dev/null +++ b/tests/test-parallel-file.sh @@ -0,0 +1,75 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2017-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh + +# Check file-data was created by Makefile and qemu-io exists. +requires test -f file-data +requires qemu-io --version + +cleanup_fn rm -f test-parallel-file.data test-parallel-file.out + +# Populate file, and sanity check that qemu-io can issue parallel requests +printf '%1024s' . > test-parallel-file.data +qemu-io -f raw -c "aio_write -P 1 0 512" -c "aio_write -P 2 512 512" \ + -c aio_flush test-parallel-file.data || + { echo "'qemu-io' can't drive parallel requests"; exit 77; } + +# Set up the file plugin to delay both reads and writes (for a good chance +# that parallel requests are in flight), and with writes longer than reads +# (to more easily detect if out-of-order completion happens). This test +# may have spurious failures under heavy loads on the test machine, where +# tuning the delays may help. + +# With --threads=1, the write should complete first because it was issued first +nbdkit -v -t 1 -U - --filter=delay file test-parallel-file.data \ + wdelay=2 rdelay=1 --run 'qemu-io -f raw -c "aio_write -P 2 512 512" \ + -c "aio_read -P 1 0 512" -c aio_flush $nbd' | + tee test-parallel-file.out +if test "$(grep '512/512' test-parallel-file.out)" != \ +"wrote 512/512 bytes at offset 512 +read 512/512 bytes at offset 0"; then + exit 1 +fi + +# With default --threads, the faster read should complete first +nbdkit -v -U - --filter=delay file test-parallel-file.data \ + wdelay=2 rdelay=1 --run 'qemu-io -f raw -c "aio_write -P 2 512 512" \ + -c "aio_read -P 1 0 512" -c aio_flush $nbd' | + tee test-parallel-file.out +if test "$(grep '512/512' test-parallel-file.out)" != \ +"read 512/512 bytes at offset 0 +wrote 512/512 bytes at offset 512"; then + exit 1 +fi + +exit 0 diff --git a/tests/test-parallel-nbd.sh b/tests/test-parallel-nbd.sh new file mode 100755 index 0000000..786448d --- /dev/null +++ b/tests/test-parallel-nbd.sh @@ -0,0 +1,83 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2017-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh + +# Check file-data was created by Makefile and qemu-io exists. +requires test -f file-data +requires qemu-io --version + +# We require --exit-with-parent to work +( nbdkit --exit-with-parent --help ) >/dev/null 2>&1 || + { echo "Missing --exit-with-parent support"; exit 77; } + +sock=`mktemp -u` +files="test-parallel-nbd.out $sock test-parallel-nbd.data test-parallel-nbd.pid" +rm -f $files +cleanup_fn rm -f $files + +# Populate file, and sanity check that qemu-io can issue parallel requests +printf '%1024s' . > test-parallel-nbd.data +qemu-io -f raw -c "aio_write -P 1 0 512" -c "aio_write -P 2 512 512" \ + -c aio_flush test-parallel-nbd.data || + { echo "'qemu-io' can't drive parallel requests"; exit 77; } + +# Set up the file plugin to delay both reads and writes (for a good chance +# that parallel requests are in flight), and with writes longer than reads +# (to more easily detect if out-of-order completion happens). This test +# may have spurious failures under heavy loads on the test machine, where +# tuning the delays may help. + +start_nbdkit -P test-parallel-nbd.pid \ + -U $sock \ + --filter=delay \ + file test-parallel-nbd.data wdelay=2 rdelay=1 + +# With --threads=1, the write should complete first because it was issued first +nbdkit -v -t 1 -U - nbd socket=$sock --run ' + qemu-io -f raw -c "aio_write -P 2 512 512" -c "aio_read -P 1 0 512" \ + -c aio_flush $nbd' | tee test-parallel-nbd.out +if test "$(grep '512/512' test-parallel-nbd.out)" != \ +"wrote 512/512 bytes at offset 512 +read 512/512 bytes at offset 0"; then + exit 1 +fi + +# With default --threads, the faster read should complete first +nbdkit -v -U - nbd socket=$sock --run ' + qemu-io -f raw -c "aio_write -P 2 512 512" -c "aio_read -P 1 0 512" \ + -c aio_flush $nbd' | tee test-parallel-nbd.out +if test "$(grep '512/512' test-parallel-nbd.out)" != \ +"read 512/512 bytes at offset 0 +wrote 512/512 bytes at offset 512"; then + exit 1 +fi diff --git a/tests/test-partition1.sh b/tests/test-partition1.sh new file mode 100755 index 0000000..4a26737 --- /dev/null +++ b/tests/test-partition1.sh @@ -0,0 +1,163 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +requires sfdisk --help +requires test -r /dev/urandom +requires qemu-img --version + +d="partition1.d" +rm -rf $d +cleanup_fn rm -rf $d +mkdir $d + +test () +{ + label=$1 + nrparts=$2 + skip_extended=$3 + + rm -f $d/disk + truncate -s 1G $d/disk + sfdisk -X $label $d/disk + + # Run nbdkit on each partition, copying data in and out. + for ((part=1; part <= $nrparts; ++part)); do + # The smallest partition in any test is 1023 sectors. However + # to make things quicker only write a sector of random data. + dd if=/dev/urandom of=$d/rand bs=512 count=1 + + if [ "$part" != "$skip_extended" ]; then + nbdkit -f -v -U - \ + --filter=partition file $d/disk partition=$part \ + --run "qemu-img convert -n $d/rand \$nbd" + nbdkit -f -v -U - \ + --filter=partition file $d/disk partition=$part \ + --run "qemu-img convert \$nbd $d/out" + truncate -s 512 $d/out + cmp $d/rand $d/out + fi + done +} + +# Regular MBR with 1-4 primary partitions. +test dos 1 <<'EOF' +2048 1023 L - +EOF + +test dos 2 <<'EOF' +2048 1023 L - +4096 4095 L - +EOF + +test dos 3 <<'EOF' +2048 1023 L - +4096 4095 L - +8192 8191 L - +EOF + +test dos 4 <<'EOF' +2048 1023 L - +4096 4095 L - +8192 8191 L - +16384 16383 L - +EOF + +# MBR with 3 primary partitions and 2 logical partitions. +# Ignore partition 4 which is the extended partition. +test dos 6 4 <<'EOF' +2048 2047 L - +4096 4095 L - +8192 8191 L - +16384 16383 E - +17000 999 L - +18000 999 L - +EOF + +# As above but the extended partition is 1. +test dos 6 1 <<'EOF' +16384 16383 E - +2048 2047 L - +4096 4095 L - +8192 8191 L - +17000 999 L - +18000 999 L - +EOF + +# MBR also allows missing partitions. This disk has only partition 2. +# (Partition 1 must be ignored since it is missing.) +test dos 2 1 <<'EOF' +disk2: start=1024 size=1023 type=83 +EOF + +# Regular GPT with 1-6 partitions. +test gpt 1 <<'EOF' +2048 1023 L - +EOF + +test gpt 2 <<'EOF' +2048 1023 L - +4096 4095 L - +EOF + +test gpt 3 <<'EOF' +2048 1023 L - +4096 4095 L - +8192 8191 L - +EOF + +test gpt 4 <<'EOF' +2048 1023 L - +4096 4095 L - +8192 8191 L - +16384 16383 L - +EOF + +test gpt 5 <<'EOF' +2048 2047 L - +4096 4095 L - +8192 8191 L - +16384 16383 L - +32768 32767 L - +EOF + +test gpt 6 <<'EOF' +2048 2047 L - +4096 4095 L - +8192 8191 L - +16384 16383 L - +32768 32767 L - +65536 65535 L - +EOF diff --git a/tests/test-partition2.sh b/tests/test-partition2.sh new file mode 100755 index 0000000..16aebec --- /dev/null +++ b/tests/test-partition2.sh @@ -0,0 +1,82 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +requires qemu-img --version + +files="partition2.log" +rm -f $files +cleanup_fn rm -f $files + +# Select partition 3 from a 2 partition disk. +nbdkit -U - -r -f -v --filter=partition \ + partitioning disk disk partition-type=mbr partition=3 \ + --run 'qemu-img info $nbd' > partition2.log 2>&1 ||: + +cat partition2.log + +grep "MBR partition 3 not found" partition2.log + +# Selection partition 11 from a 9 partition disk. NB: partition 4 is +# the extended partition so it is skipped. This test is slightly +# different from above as it invokes the code supporting logical +# partitions. +nbdkit -U - -r -f -v --filter=partition \ + partitioning disk disk disk disk disk disk disk disk disk \ + partition-type=mbr partition=11 \ + --run 'qemu-img info $nbd' > partition2.log 2>&1 ||: + +cat partition2.log + +grep "MBR partition 11 not found" partition2.log + +# It should be impossible to select an extended partition. +nbdkit -U - -r -f -v --filter=partition \ + partitioning disk disk disk disk disk partition-type=mbr partition=4 \ + --run 'qemu-img info $nbd' > partition2.log 2>&1 ||: + +cat partition2.log + +grep "MBR partition 4 not found" partition2.log + +# Selecting a logical partition on a disk without an extended +# partition gives a different error. +nbdkit -U - -r -f -v --filter=partition \ + partitioning disk disk partition-type=mbr partition=5 \ + --run 'qemu-img info $nbd' > partition2.log 2>&1 ||: + +cat partition2.log + +grep "there is no extended partition" partition2.log diff --git a/tests/test-partitioning1.sh b/tests/test-partitioning1.sh new file mode 100755 index 0000000..d1cd732 --- /dev/null +++ b/tests/test-partitioning1.sh @@ -0,0 +1,110 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Test the partitioning plugin. +# +# Test 1: check that partitioning + partition filter = identity + +source ./functions.sh +set -e +set -x + +requires qemu-img --version + +files="partitioning1.out partitioning1-p1 partitioning1-p2 partitioning1-p3 partitioning1-p4 partitioning1-p5 partitioning1-p6" +rm -f $files +cleanup_fn rm -f $files + +# Create some odd-sized partitions. These exist to test alignment and +# padding. +truncate -s 1 partitioning1-p1 +truncate -s 511 partitioning1-p2 +truncate -s 10M partitioning1-p3 +truncate -s 1023 partitioning1-p4 +truncate -s 1 partitioning1-p5 +truncate -s 511 partitioning1-p6 + +# Run nbdkit with partitioning plugin and partition filter. +nbdkit -f -v -D partitioning.regions=1 -U - \ + --filter=partition \ + partitioning \ + mbr-id=0x83 alignment=512 \ + partitioning1-p1 \ + mbr-id=0x82 alignment=$((2048 * 512)) \ + partitioning1-p2 \ + mbr-id=0x83 \ + file-data \ + mbr-id=0x82 \ + partitioning1-p3 \ + partition-type=mbr \ + partition=3 \ + --run 'qemu-img convert $nbd partitioning1.out' + +# Contents of partitioning1.out should be identical to file-data. +cmp file-data partitioning1.out + +# Same test with > 4 MBR partitions. +# Note we select partition 6 because partition 4 is the extended partition. +nbdkit -f -v -D partitioning.regions=1 -U - \ + --filter=partition \ + partitioning \ + partitioning1-p1 \ + partitioning1-p2 \ + partitioning1-p3 \ + partitioning1-p4 \ + file-data \ + partitioning1-p5 \ + partitioning1-p6 \ + partition-type=mbr \ + partition=6 \ + --run 'qemu-img convert $nbd partitioning1.out' + +cmp file-data partitioning1.out + +# Same test with GPT. +nbdkit -f -v -D partitioning.regions=1 -U - \ + --filter=partition \ + partitioning \ + partitioning1-p1 \ + partitioning1-p2 \ + partitioning1-p3 \ + partitioning1-p4 \ + type-guid=A2A0D0EB-E5B9-3344-87C0-68B6B72699C7 \ + file-data \ + type-guid=AF3DC60F-8384-7247-8E79-3D69D8477DE4 \ + partitioning1-p5 \ + partitioning1-p6 \ + partition-type=gpt \ + partition=5 \ + --run 'qemu-img convert $nbd partitioning1.out' + +cmp file-data partitioning1.out diff --git a/tests/test-partitioning2.sh b/tests/test-partitioning2.sh new file mode 100755 index 0000000..5993f7e --- /dev/null +++ b/tests/test-partitioning2.sh @@ -0,0 +1,71 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Test the partitioning plugin. +# +# Test 2: Create a naked filesystem, embed in a partition, and try to +# read/write it with guestfish. + +source ./functions.sh +set -e +set -x + +requires mke2fs -V + +sock=`mktemp -u` +files="partitioning2.pid $sock partitioning2.fs partitioning2.p1 partitioning2.p3" +rm -f $files +cleanup_fn rm -f $files + +# Create partitions before and after. +truncate -s 1 partitioning2.p1 +truncate -s 10M partitioning2.p3 + +# Create the naked filesystem. +truncate -s 20M partitioning2.fs +mke2fs -F -t ext2 partitioning2.fs + +# Run nbdkit. +start_nbdkit -P partitioning2.pid -U $sock \ + partitioning partitioning2.p1 partitioning2.fs partitioning2.p3 \ + partition-type=gpt + +# Connect with guestfish and read/write stuff to partition 2. +guestfish --format=raw -a "nbd://?socket=$sock" <<'EOF' + run + mount /dev/sda2 / + touch /hello + fill-pattern "abc" 10000 /pattern + ll / + umount /dev/sda2 + sync +EOF diff --git a/tests/test-partitioning3.sh b/tests/test-partitioning3.sh new file mode 100755 index 0000000..efaea6b --- /dev/null +++ b/tests/test-partitioning3.sh @@ -0,0 +1,75 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Test the partitioning plugin. +# +# Test 3: Check GUIDs. + +source ./functions.sh +set -e +set -x + +sock=`mktemp -u` +files="partitioning3.pid $sock partitioning3.p1 partitioning3.p2 partitioning3.p3 partitioning3.out" +rm -f $files +cleanup_fn rm -f $files + +# Create the partitions. +truncate -s 1 partitioning3.p1 +truncate -s 10M partitioning3.p2 +truncate -s 100M partitioning3.p3 + +# Run nbdkit. +start_nbdkit -P partitioning3.pid -U $sock \ + partitioning \ + partitioning3.p1 \ + type-guid=0FC63DAF-8483-4772-8E79-3D69D8477DE4 \ + partitioning3.p2 \ + type-guid=0657FD6D-A4AB-43C4-84E5-0933C84B4F4F \ + partitioning3.p3 \ + partition-type=gpt + +# Connect with guestfish and read partition types. +guestfish --ro --format=raw -a "nbd://?socket=$sock" > partitioning3.out <<'EOF' + run + part-get-gpt-type /dev/sda 1 + part-get-gpt-type /dev/sda 2 + part-get-gpt-type /dev/sda 3 +EOF + +if [ "$(cat partitioning3.out)" != "0FC63DAF-8483-4772-8E79-3D69D8477DE4 +0FC63DAF-8483-4772-8E79-3D69D8477DE4 +0657FD6D-A4AB-43C4-84E5-0933C84B4F4F" ]; then + echo "$0: unexpected partition type GUIDs:" + cat partitioning3.out + exit 1 +fi diff --git a/tests/test-partitioning4.sh b/tests/test-partitioning4.sh new file mode 100755 index 0000000..7474af2 --- /dev/null +++ b/tests/test-partitioning4.sh @@ -0,0 +1,83 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Test the partitioning plugin. +# +# Test 4: Test > 128 partitions using GPT. +# +# virtio-scsi (used by libguestfs) doesn't support more than 15 +# partitions. In fact the only client which supports this is our own +# partition filter so we use that for the test. + +source ./functions.sh +set -e +set -x + +requires qemu-img --version + +# This test requires the partitioning plugin to open at least 768 +# files (say 800 to make it a round number). On OpenBSD the limit on +# open files is set to 512 and so the test fails. +if [ $(ulimit -n) -lt 800 ]; then + echo "$0: ulimit open files is too low for this test" + exit 77 +fi + +d=partitioning4.d +rm -rf $d +mkdir $d +cleanup_fn rm -rf $d + +# Create the partitions. +for i in {1..768}; do + truncate -s 1 $(printf '%s/part.%04d' $d $i) +done + +# Create partition 250 containing data and truncate it to a whole +# number of sectors. +rm $d/part.0250 +for i in {0..1000}; do + echo -n "hello " >> $d/part.0250 +done +truncate -s 6144 $d/part.0250 + +# Run nbdkit. +nbdkit -f -v -D partitioning.regions=1 -U - \ + --filter=partition \ + partitioning \ + $d/part.* \ + partition-type=gpt \ + partition=250 \ + --run "qemu-img convert \$nbd $d/out" + +# The output should be identical to partition 250. +cmp $d/part.0250 $d/out diff --git a/tests/test-partitioning5.sh b/tests/test-partitioning5.sh new file mode 100755 index 0000000..d078254 --- /dev/null +++ b/tests/test-partitioning5.sh @@ -0,0 +1,92 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Test the partitioning plugin. +# +# Test 5: Create a filesystem and embed it in an MBR logical +# partition. libguestfs uses virtio-scsi so the practical limit here +# is about 15 partitions. + +source ./functions.sh +set -e +set -x + +requires mke2fs -V + +sock=`mktemp -u` +files="partitioning5.pid $sock + partitioning5.fs + partitioning5.p1 partitioning5.p2 partitioning5.p3 partitioning5.p5 partitioning5.p6 partitioning5.p7 partitioning5.p8 partitioning5.p9 partitioning5.p10 partitioning5.p11 partitioning5.p13" +rm -f $files +cleanup_fn rm -f $files + +# Create partitions before and after. +truncate -s 1 partitioning5.p1 +truncate -s 10M partitioning5.p2 +truncate -s 512 partitioning5.p3 +# partition 4 = extended partition +truncate -s 1 partitioning5.p5 +truncate -s 512 partitioning5.p6 +truncate -s 1 partitioning5.p7 +truncate -s 1 partitioning5.p8 +truncate -s 10M partitioning5.p9 +truncate -s 512 partitioning5.p10 +truncate -s 1 partitioning5.p11 +# partition 12 = naked filesystem +truncate -s 10M partitioning5.p13 + +# Create the naked filesystem. +truncate -s 20M partitioning5.fs +mke2fs -F -t ext2 partitioning5.fs + +# Run nbdkit. +start_nbdkit -P partitioning5.pid -U $sock \ + partitioning \ + partitioning5.p1 partitioning5.p2 \ + partitioning5.p3 \ + partitioning5.p5 partitioning5.p6 \ + partitioning5.p7 partitioning5.p8 \ + partitioning5.p9 partitioning5.p10 \ + partitioning5.p11 partitioning5.fs \ + partitioning5.p13 \ + partition-type=mbr + +# Connect with guestfish and read/write stuff to partition 12. +guestfish --format=raw -a "nbd://?socket=$sock" <<'EOF' + run + mount /dev/sda12 / + touch /hello + fill-pattern "abc" 10000 /pattern + ll / + umount /dev/sda12 + sync +EOF diff --git a/tests/test-partitioning6.sh b/tests/test-partitioning6.sh new file mode 100755 index 0000000..ae3b008 --- /dev/null +++ b/tests/test-partitioning6.sh @@ -0,0 +1,86 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Test the partitioning plugin. +# +# Test 4: Test > 128 partitions using MBR. +# +# virtio-scsi (used by libguestfs) doesn't support more than 15 +# partitions. In fact the only client which supports this is our own +# partition filter so we use that for the test. + +source ./functions.sh +set -e +set -x + +requires qemu-img --version + +# This test requires the partitioning plugin to open at least 768 +# files (say 800 to make it a round number). On OpenBSD the limit on +# open files is set to 512 and so the test fails. +if [ $(ulimit -n) -lt 800 ]; then + echo "$0: ulimit open files is too low for this test" + exit 77 +fi + +d=partitioning6.d +rm -rf $d +mkdir $d +cleanup_fn rm -rf $d + +# Create the partitions. +for i in {1..768}; do + truncate -s 1 $(printf '%s/part.%04d' $d $i) +done + +# Create partition 250 containing data and truncate it to a whole +# number of sectors. +rm $d/part.0250 +for i in {0..1000}; do + echo -n "hello " >> $d/part.0250 +done +truncate -s 6144 $d/part.0250 + +# Run nbdkit. +# +# Note we select partition 251 (not 250) because partition 4 is the +# extended partition and everything partition following moves up by 1. +nbdkit -f -v -D partitioning.regions=1 -U - \ + --filter=partition \ + partitioning \ + $d/part.* \ + partition-type=mbr \ + partition=251 \ + --run "qemu-img convert \$nbd $d/out" + +# The output should be identical to partition 250. +cmp $d/part.0250 $d/out diff --git a/tests/test-pattern-largest-for-qemu.sh b/tests/test-pattern-largest-for-qemu.sh new file mode 100755 index 0000000..5aa1dfe --- /dev/null +++ b/tests/test-pattern-largest-for-qemu.sh @@ -0,0 +1,89 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Test the pattern plugin with the largest possible size supported +# by qemu and nbdkit. + +source ./functions.sh +set -e + +requires qemu-io --version + +sock=`mktemp -u` +files="pattern-largest-for-qemu.out pattern-largest-for-qemu.pid $sock" +rm -f $files +cleanup_fn rm -f $files + +# Run nbdkit with pattern plugin. +# size = (2^63-1) & ~511 which is the largest supported by qemu. +start_nbdkit -P pattern-largest-for-qemu.pid -U $sock \ + pattern size=9223372036854775296 + +qemu-io -r -f raw "nbd+unix://?socket=$sock" \ + -c 'r -v 9223372036854774784 512' | grep -E '^[[:xdigit:]]+:' > pattern-largest-for-qemu.out +if [ "$(cat pattern-largest-for-qemu.out)" != "7ffffffffffffc00: 7f ff ff ff ff ff fc 00 7f ff ff ff ff ff fc 08 ................ +7ffffffffffffc10: 7f ff ff ff ff ff fc 10 7f ff ff ff ff ff fc 18 ................ +7ffffffffffffc20: 7f ff ff ff ff ff fc 20 7f ff ff ff ff ff fc 28 ................ +7ffffffffffffc30: 7f ff ff ff ff ff fc 30 7f ff ff ff ff ff fc 38 .......0.......8 +7ffffffffffffc40: 7f ff ff ff ff ff fc 40 7f ff ff ff ff ff fc 48 ...............H +7ffffffffffffc50: 7f ff ff ff ff ff fc 50 7f ff ff ff ff ff fc 58 .......P.......X +7ffffffffffffc60: 7f ff ff ff ff ff fc 60 7f ff ff ff ff ff fc 68 ...............h +7ffffffffffffc70: 7f ff ff ff ff ff fc 70 7f ff ff ff ff ff fc 78 .......p.......x +7ffffffffffffc80: 7f ff ff ff ff ff fc 80 7f ff ff ff ff ff fc 88 ................ +7ffffffffffffc90: 7f ff ff ff ff ff fc 90 7f ff ff ff ff ff fc 98 ................ +7ffffffffffffca0: 7f ff ff ff ff ff fc a0 7f ff ff ff ff ff fc a8 ................ +7ffffffffffffcb0: 7f ff ff ff ff ff fc b0 7f ff ff ff ff ff fc b8 ................ +7ffffffffffffcc0: 7f ff ff ff ff ff fc c0 7f ff ff ff ff ff fc c8 ................ +7ffffffffffffcd0: 7f ff ff ff ff ff fc d0 7f ff ff ff ff ff fc d8 ................ +7ffffffffffffce0: 7f ff ff ff ff ff fc e0 7f ff ff ff ff ff fc e8 ................ +7ffffffffffffcf0: 7f ff ff ff ff ff fc f0 7f ff ff ff ff ff fc f8 ................ +7ffffffffffffd00: 7f ff ff ff ff ff fd 00 7f ff ff ff ff ff fd 08 ................ +7ffffffffffffd10: 7f ff ff ff ff ff fd 10 7f ff ff ff ff ff fd 18 ................ +7ffffffffffffd20: 7f ff ff ff ff ff fd 20 7f ff ff ff ff ff fd 28 ................ +7ffffffffffffd30: 7f ff ff ff ff ff fd 30 7f ff ff ff ff ff fd 38 .......0.......8 +7ffffffffffffd40: 7f ff ff ff ff ff fd 40 7f ff ff ff ff ff fd 48 ...............H +7ffffffffffffd50: 7f ff ff ff ff ff fd 50 7f ff ff ff ff ff fd 58 .......P.......X +7ffffffffffffd60: 7f ff ff ff ff ff fd 60 7f ff ff ff ff ff fd 68 ...............h +7ffffffffffffd70: 7f ff ff ff ff ff fd 70 7f ff ff ff ff ff fd 78 .......p.......x +7ffffffffffffd80: 7f ff ff ff ff ff fd 80 7f ff ff ff ff ff fd 88 ................ +7ffffffffffffd90: 7f ff ff ff ff ff fd 90 7f ff ff ff ff ff fd 98 ................ +7ffffffffffffda0: 7f ff ff ff ff ff fd a0 7f ff ff ff ff ff fd a8 ................ +7ffffffffffffdb0: 7f ff ff ff ff ff fd b0 7f ff ff ff ff ff fd b8 ................ +7ffffffffffffdc0: 7f ff ff ff ff ff fd c0 7f ff ff ff ff ff fd c8 ................ +7ffffffffffffdd0: 7f ff ff ff ff ff fd d0 7f ff ff ff ff ff fd d8 ................ +7ffffffffffffde0: 7f ff ff ff ff ff fd e0 7f ff ff ff ff ff fd e8 ................ +7ffffffffffffdf0: 7f ff ff ff ff ff fd f0 7f ff ff ff ff ff fd f8 ................" ] +then + echo "$0: unexpected pattern:" + cat pattern-largest-for-qemu.out + exit 1 +fi diff --git a/tests/test-pattern-largest.sh b/tests/test-pattern-largest.sh new file mode 100755 index 0000000..3bf7905 --- /dev/null +++ b/tests/test-pattern-largest.sh @@ -0,0 +1,69 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Test the pattern plugin with the largest possible size supported +# by nbdkit. + +source ./functions.sh +set -e + +requires qemu-io --version + +sock=`mktemp -u` +files="pattern-largest.out pattern-largest.pid $sock" +rm -f $files +cleanup_fn rm -f $files + +# Run nbdkit with pattern plugin. +# size = 2^63-1 +start_nbdkit -P pattern-largest.pid -U $sock \ + pattern size=9223372036854775807 + +# qemu cannot open this image! +# +# can't open device nbd+unix://?socket=$sock: Could not get image size: File too large +# +# Therefore we skip the remainder of this test (in effect, testing +# only that nbdkit can create the file). +exit 77 + +# XXX Unfortunately qemu-io can only issue 512-byte aligned requests, +# and the final block is only 511 bytes, so we have to request the 512 +# bytes before that block. +qemu-io -r -f raw "nbd+unix://?socket=$sock" \ + -c 'r -v 9223372036854774784 512' | grep -E '^[[:xdigit:]]+:' > pattern-largest.out +if [ "$(cat pattern-largest.out)" != "XXX EXPECTED PATTERN HERE" ] +then + echo "$0: unexpected pattern:" + cat pattern-largest.out + exit 1 +fi diff --git a/tests/test-pattern.sh b/tests/test-pattern.sh new file mode 100755 index 0000000..69b0e27 --- /dev/null +++ b/tests/test-pattern.sh @@ -0,0 +1,95 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Test the pattern plugin. +# +# Note we don't have any client which can issue misaligned NBD +# requests. qemu-io will issue 512-byte aligned requests no matter +# what read parameters we give it. Hence these tests are rather +# limited. (XXX) + +source ./functions.sh +set -e + +sock=`mktemp -u` +files="pattern.out pattern.pid $sock" +rm -f $files +cleanup_fn rm -f $files + +# Test that qemu-io works +if ! qemu-io --help >/dev/null; then + echo "$0: missing or broken qemu-io" + exit 77 +fi + +# Run nbdkit with pattern plugin. +start_nbdkit -P pattern.pid -U $sock pattern size=1G + +qemu-io -r -f raw "nbd+unix://?socket=$sock" \ + -c 'r -v 0 512' | grep -E '^[[:xdigit:]]+:' > pattern.out +if [ "$(cat pattern.out)" != "00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08 ................ +00000010: 00 00 00 00 00 00 00 10 00 00 00 00 00 00 00 18 ................ +00000020: 00 00 00 00 00 00 00 20 00 00 00 00 00 00 00 28 ................ +00000030: 00 00 00 00 00 00 00 30 00 00 00 00 00 00 00 38 .......0.......8 +00000040: 00 00 00 00 00 00 00 40 00 00 00 00 00 00 00 48 ...............H +00000050: 00 00 00 00 00 00 00 50 00 00 00 00 00 00 00 58 .......P.......X +00000060: 00 00 00 00 00 00 00 60 00 00 00 00 00 00 00 68 ...............h +00000070: 00 00 00 00 00 00 00 70 00 00 00 00 00 00 00 78 .......p.......x +00000080: 00 00 00 00 00 00 00 80 00 00 00 00 00 00 00 88 ................ +00000090: 00 00 00 00 00 00 00 90 00 00 00 00 00 00 00 98 ................ +000000a0: 00 00 00 00 00 00 00 a0 00 00 00 00 00 00 00 a8 ................ +000000b0: 00 00 00 00 00 00 00 b0 00 00 00 00 00 00 00 b8 ................ +000000c0: 00 00 00 00 00 00 00 c0 00 00 00 00 00 00 00 c8 ................ +000000d0: 00 00 00 00 00 00 00 d0 00 00 00 00 00 00 00 d8 ................ +000000e0: 00 00 00 00 00 00 00 e0 00 00 00 00 00 00 00 e8 ................ +000000f0: 00 00 00 00 00 00 00 f0 00 00 00 00 00 00 00 f8 ................ +00000100: 00 00 00 00 00 00 01 00 00 00 00 00 00 00 01 08 ................ +00000110: 00 00 00 00 00 00 01 10 00 00 00 00 00 00 01 18 ................ +00000120: 00 00 00 00 00 00 01 20 00 00 00 00 00 00 01 28 ................ +00000130: 00 00 00 00 00 00 01 30 00 00 00 00 00 00 01 38 .......0.......8 +00000140: 00 00 00 00 00 00 01 40 00 00 00 00 00 00 01 48 ...............H +00000150: 00 00 00 00 00 00 01 50 00 00 00 00 00 00 01 58 .......P.......X +00000160: 00 00 00 00 00 00 01 60 00 00 00 00 00 00 01 68 ...............h +00000170: 00 00 00 00 00 00 01 70 00 00 00 00 00 00 01 78 .......p.......x +00000180: 00 00 00 00 00 00 01 80 00 00 00 00 00 00 01 88 ................ +00000190: 00 00 00 00 00 00 01 90 00 00 00 00 00 00 01 98 ................ +000001a0: 00 00 00 00 00 00 01 a0 00 00 00 00 00 00 01 a8 ................ +000001b0: 00 00 00 00 00 00 01 b0 00 00 00 00 00 00 01 b8 ................ +000001c0: 00 00 00 00 00 00 01 c0 00 00 00 00 00 00 01 c8 ................ +000001d0: 00 00 00 00 00 00 01 d0 00 00 00 00 00 00 01 d8 ................ +000001e0: 00 00 00 00 00 00 01 e0 00 00 00 00 00 00 01 e8 ................ +000001f0: 00 00 00 00 00 00 01 f0 00 00 00 00 00 00 01 f8 ................" ] +then + echo "$0: unexpected pattern:" + cat pattern.out + exit 1 +fi diff --git a/tests/test-python-exception.sh b/tests/test-python-exception.sh new file mode 100755 index 0000000..624f5f9 --- /dev/null +++ b/tests/test-python-exception.sh @@ -0,0 +1,62 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +if test ! -d "$SRCDIR"; then + echo "$0: could not locate python-exception.py" + exit 1 +fi + +# Python has proven very difficult to valgrind, therefore it is disabled. +if [ "$NBDKIT_VALGRIND" = "1" ]; then + echo "$0: skipping Python test under valgrind." + exit 77 +fi + +output=test-python-exception.out +rm -f $output +cleanup_fn rm -f $output + +nbdkit -f -v python $SRCDIR/python-exception.py test=simple > $output 2>&1 ||: +cat $output + +grep 'this is the test string' $output + +nbdkit -f -v python $SRCDIR/python-exception.py test=traceback > $output 2>&1 ||: +cat $output + +grep 'raise_error1' $output +grep 'raise_error2' $output +grep 'this is the test string' $output diff --git a/tests/test-random-sock.sh b/tests/test-random-sock.sh new file mode 100755 index 0000000..6504fff --- /dev/null +++ b/tests/test-random-sock.sh @@ -0,0 +1,39 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2014 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +# Test nbdkit -U - + captive nbdkit. + +nbdkit -U - example1 --run 'sleep 5' diff --git a/tests/test-random.c b/tests/test-random.c new file mode 100644 index 0000000..49b2c44 --- /dev/null +++ b/tests/test-random.c @@ -0,0 +1,149 @@ +/* nbdkit + * Copyright (C) 2017-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> +#include <time.h> + +#include <guestfs.h> + +#include "random.h" + +#include "test.h" + +#define SIZE 1024*1024 +static char data[SIZE]; + +static unsigned histogram[256]; + +/* After reading the whole disk above, we then read randomly selected + * subsets of the disk and compare the data (it should be identical). + */ +#define RSIZE 10240 +#define NR_READS 50 + +int +main (int argc, char *argv[]) +{ + guestfs_h *g; + int r, i; + struct random_state random_state; + unsigned offset; + char sizearg[32]; + char *rdata; + size_t rsize; + + snprintf (sizearg, sizeof sizearg, "size=%d", SIZE); + + if (test_start_nbdkit ("random", sizearg, NULL) == -1) + exit (EXIT_FAILURE); + + g = guestfs_create (); + if (g == NULL) { + perror ("guestfs_create"); + exit (EXIT_FAILURE); + } + + r = guestfs_add_drive_opts (g, "", + GUESTFS_ADD_DRIVE_OPTS_READONLY, 1, + GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw", + GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd", + GUESTFS_ADD_DRIVE_OPTS_SERVER, server, + -1); + if (r == -1) + exit (EXIT_FAILURE); + + if (guestfs_launch (g) == -1) + exit (EXIT_FAILURE); + + /* Read the whole device. */ + rdata = guestfs_pread_device (g, "/dev/sda", SIZE, 0, &rsize); + if (rdata == NULL) + exit (EXIT_FAILURE); + if (rsize != SIZE) { + fprintf (stderr, "test-random: short read\n"); + exit (EXIT_FAILURE); + } + memcpy (data, rdata, SIZE); + free (rdata); + + /* Test that the data is sufficiently random using a simple + * histogram. This just tests for gross errors and is not a + * complete statistical study. + */ + for (i = 0; i < SIZE; ++i) { + unsigned char c = (unsigned char) data[i]; + histogram[c]++; + } + for (i = 0; i < 256; ++i) { + const unsigned expected = SIZE / 256; + if (histogram[i] < 80 * expected / 100) { + fprintf (stderr, "test-random: " + "random data is not uniformly distributed\n" + "eg. byte %d occurs %u times (expected about %u times)\n", + i, histogram[i], expected); + exit (EXIT_FAILURE); + } + } + + /* Randomly read parts of the disk to ensure we get the same data. + */ + xsrandom (time (NULL), &random_state); + for (i = 0; i < NR_READS; ++i) { + offset = xrandom (&random_state); + offset %= SIZE - RSIZE; + rdata = guestfs_pread_device (g, "/dev/sda", RSIZE, offset, &rsize); + if (rdata == NULL) + exit (EXIT_FAILURE); + if (rsize != RSIZE) { + fprintf (stderr, "test-random: short read\n"); + exit (EXIT_FAILURE); + } + if (memcmp (&data[offset], rdata, rsize) != 0) { + fprintf (stderr, "test-random: returned different data\n"); + exit (EXIT_FAILURE); + } + free (rdata); + } + + if (guestfs_shutdown (g) == -1) + exit (EXIT_FAILURE); + + guestfs_close (g); + exit (EXIT_SUCCESS); +} diff --git a/tests/test-rate-dynamic.sh b/tests/test-rate-dynamic.sh new file mode 100755 index 0000000..c359ae5 --- /dev/null +++ b/tests/test-rate-dynamic.sh @@ -0,0 +1,70 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +requires qemu-img --version + +files="rate-dynamic.img rate-dynamic.time rate-dynamic.err rate-dynamic.txt" +rm -f $files +cleanup_fn rm -f $files + +# This should take no less than 20 seconds to run: +# (8 * 25 * 1024 * 1024) / (10 * 1024 * 1024) = 20 +# but because the bucket is full at the start the filter will +# burst for a couple of seconds to begin with, therefore the +# expected minimum time is more like 18-19 seconds. +# +# However if the dynamic rate isn't being picked up then +# it will take much longer (approx 200 seconds). +echo 10M > rate-dynamic.txt + +# We are using the bash time builtin, so setting TIMEFORMAT will +# control the output format of the time builtin. For strange use of +# { ; } here, see: https://stackoverflow.com/a/13356654 +set +x +{ TIMEFORMAT="%0R" ; time nbdkit -U - --filter=rate pattern size=25M rate=1M rate-file=rate-dynamic.txt --run 'qemu-img convert -p $nbd rate-dynamic.img' 2>rate-dynamic.err ; } 2>rate-dynamic.time +set -x + +cat rate-dynamic.err ||: + +seconds="$( cat rate-dynamic.time )" +if [ "$seconds" -lt 18 ]; then + echo "$0: rate filter failed: command took $seconds seconds, expected about 20" + exit 1 +fi +if [ "$seconds" -gt 180 ]; then + echo "$0: rate filter failed: command took $seconds seconds, expected about 20" + exit 1 +fi diff --git a/tests/test-rate.sh b/tests/test-rate.sh new file mode 100755 index 0000000..6947aef --- /dev/null +++ b/tests/test-rate.sh @@ -0,0 +1,62 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +requires qemu-img --version + +files="rate.img rate.time rate.err" +rm -f $files +cleanup_fn rm -f $files + +# This should take no less than 20 seconds to run: +# (8 * 25 * 1024 * 1024) / (10 * 1024 * 1024) = 20 +# but because the bucket is full at the start the filter will +# burst for a couple of seconds to begin with, therefore the +# expected minimum time is more like 18-19 seconds. + +# We are using the bash time builtin, so setting TIMEFORMAT will +# control the output format of the time builtin. For strange use of +# { ; } here, see: https://stackoverflow.com/a/13356654 +set +x +{ TIMEFORMAT="%0R" ; time nbdkit -U - --filter=rate pattern size=25M rate=10M --run 'qemu-img convert -p $nbd rate.img' 2>rate.err ; } 2>rate.time +set -x + +cat rate.err ||: + +seconds="$( cat rate.time )" +if [ "$seconds" -lt 18 ]; then + echo "$0: rate filter failed: command took $seconds seconds, expected about 20" + exit 1 +fi diff --git a/tests/test-readahead-copy.sh b/tests/test-readahead-copy.sh new file mode 100755 index 0000000..168df06 --- /dev/null +++ b/tests/test-readahead-copy.sh @@ -0,0 +1,67 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +requires qemu-img --version + +files="readahead-copy1.img readahead-copy2.img" +rm -f $files +cleanup_fn rm -f $files + +# Run nbdkit with and without the readahead filter and a very sparse +# disk with bytes scattered around. Compare the two outputs which +# should be identical. +# +# Note we must set the size to a multiple of 512 bytes else qemu-img +# cannot cope. +data=" 1 + @0x10001 2 + @0x100020 3 + @0x1000301 4 + @0x10004020 5 + @0x20050301 6 + @0x40604020 7 + @0x87050300 8 + @0x100000000 9 " +size=$((2**32 + 512)) + +nbdkit -v -U - --filter=readahead data data="$data" size=$size \ + --run 'qemu-img convert $nbd readahead-copy1.img' +nbdkit -v -U - data data="$data" size=$size \ + --run 'qemu-img convert $nbd readahead-copy2.img' + +# Check the output. +cmp readahead-copy{1,2}.img + diff --git a/tests/test-readahead.c b/tests/test-readahead.c new file mode 100644 index 0000000..343f696 --- /dev/null +++ b/tests/test-readahead.c @@ -0,0 +1,140 @@ +/* nbdkit + * Copyright (C) 2017-2019 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> + +#include <guestfs.h> + +#include "test.h" + +int +main (int argc, char *argv[]) +{ + guestfs_h *g; + int r; + char *data; + char **files; + size_t i; + + /* The idea behind the test is that the readahead filter should not + * interfere with normal, complex, non-sequential read and write + * operations (although it will slow things down a lot). + */ + if (test_start_nbdkit ("--filter", "readahead", + "memory", "size=1G", NULL) == -1) + exit (EXIT_FAILURE); + + g = guestfs_create (); + if (g == NULL) { + perror ("guestfs_create"); + exit (EXIT_FAILURE); + } + + r = guestfs_add_drive_opts (g, "", + GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw", + GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd", + GUESTFS_ADD_DRIVE_OPTS_SERVER, server, + -1); + if (r == -1) + exit (EXIT_FAILURE); + + if (guestfs_launch (g) == -1) + exit (EXIT_FAILURE); + + if (guestfs_part_disk (g, "/dev/sda", "mbr") == -1) + exit (EXIT_FAILURE); + if (guestfs_mkfs (g, "ext2", "/dev/sda1") == -1) + exit (EXIT_FAILURE); + + if (guestfs_mount_options (g, "discard", "/dev/sda1", "/") == -1) + exit (EXIT_FAILURE); + +#define filename "/hello.txt" +#define content "hello, people of the world" + + if (guestfs_write (g, filename, content, strlen (content)) == -1) + exit (EXIT_FAILURE); + + if (guestfs_mkdir (g, "/fill") == -1) + exit (EXIT_FAILURE); + + if (guestfs_fill_dir (g, "/fill", 10000) == -1) + exit (EXIT_FAILURE); + + /* Force write through to and read back from disk. */ + if (guestfs_sync (g) == -1 || guestfs_drop_caches (g, 3) == -1) + exit (EXIT_FAILURE); + + data = guestfs_cat (g, filename); + if (!data) + exit (EXIT_FAILURE); + + if (strcmp (data, content) != 0) { + fprintf (stderr, + "%s FAILED: unexpected content of %s file " + "(actual: %s, expected: %s)\n", + program_name, filename, data, content); + exit (EXIT_FAILURE); + } + + files = guestfs_find (g, "/"); + if (!files) + exit (EXIT_FAILURE); + for (i = 0; files[i] != NULL; ++i) + free (files[i]); + free (files); + +#ifdef GUESTFS_HAVE_FSTRIM + /* Delete the files and fstrim to test zeroing/trimming. */ + if (guestfs_rm (g, filename) == -1) + exit (EXIT_FAILURE); + + if (guestfs_rm_rf (g, "/fill") == -1) + exit (EXIT_FAILURE); + + if (guestfs_fstrim (g, "/", -1) == -1) + exit (EXIT_FAILURE); +#endif + + if (guestfs_shutdown (g) == -1) + exit (EXIT_FAILURE); + + guestfs_close (g); + exit (EXIT_SUCCESS); +} diff --git a/tests/test-sh-extents.sh b/tests/test-sh-extents.sh new file mode 100755 index 0000000..a3e5bea --- /dev/null +++ b/tests/test-sh-extents.sh @@ -0,0 +1,156 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +requires jq --version +requires qemu-img --version +requires qemu-img map --help + +out="test-sh-extents.out" +expected="test-sh-extents.expected" +files="$out $expected" +rm -f $files +cleanup_fn rm -f $files + +do_test () +{ + # We use jq to normalize the output and convert it to plain text. + nbdkit -v -U - sh - --run 'qemu-img map -f raw --output=json $nbd' | + jq -c '.[] | {start:.start, length:.length, data:.data, zero:.zero}' \ + > $out + if ! cmp $out $expected; then + echo "$0: output did not match expected data" + echo "expected:" + cat $expected + echo "output:" + cat $out + exit 1 + fi +} + +# Completely sparse disk. +cat > $expected <<'EOF' +{"start":0,"length":65536,"data":false,"zero":true} +EOF +do_test <<'EOF' +case "$1" in + get_size) echo 64K ;; + can_extents) exit 0 ;; + extents) + echo "0 64K hole,zero" + ;; + *) exit 2 ;; +esac +EOF + +# Completely allocated disk. +# type field missing means allocated data. +cat > $expected <<'EOF' +{"start":0,"length":65536,"data":true,"zero":false} +EOF +do_test <<'EOF' +case "$1" in + get_size) echo 64K ;; + can_extents) exit 0 ;; + extents) + echo "0 64K" + ;; + *) exit 2 ;; +esac +EOF + +# Completely allocated disk. +# type=0 +cat > $expected <<'EOF' +{"start":0,"length":65536,"data":true,"zero":false} +EOF +do_test <<'EOF' +case "$1" in + get_size) echo 64K ;; + can_extents) exit 0 ;; + extents) + echo "0 64K 0" + ;; + *) exit 2 ;; +esac +EOF + +# Allocated data at the start of a 1M disk. +cat > $expected <<'EOF' +{"start":0,"length":32768,"data":true,"zero":false} +{"start":32768,"length":1015808,"data":false,"zero":true} +EOF +do_test <<'EOF' +case "$1" in + get_size) echo 1M ;; + can_extents) exit 0 ;; + extents) + echo "0 32K" + echo "32K 1015808 hole,zero" + ;; + *) exit 2 ;; +esac +EOF + +# Zeroes at the start of a 1M disk. +cat > $expected <<'EOF' +{"start":0,"length":32768,"data":true,"zero":true} +{"start":32768,"length":32768,"data":false,"zero":true} +{"start":65536,"length":983040,"data":true,"zero":false} +EOF +do_test <<'EOF' +case "$1" in + get_size) echo 1M ;; + can_extents) exit 0 ;; + extents) + echo "0 32K zero" + echo "32K 32K hole,zero" + echo "64K 983040 " + ;; + *) exit 2 ;; +esac +EOF + +# If can_extents is not defined, extents should never be called. +cat > $expected <<'EOF' +{"start":0,"length":65536,"data":true,"zero":false} +EOF +do_test <<'EOF' +case "$1" in + get_size) echo 64K ;; + extents) exit 1 ;; + *) exit 2 ;; +esac +EOF diff --git a/tests/test-shebang-perl.sh b/tests/test-shebang-perl.sh new file mode 100755 index 0000000..39aa21f --- /dev/null +++ b/tests/test-shebang-perl.sh @@ -0,0 +1,83 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2017 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh + +pidfile=shebang-perl.pid +sock=`mktemp -u` +script=$SRCDIR/shebang.pl + +if test ! -d "$SRCDIR"; then + echo "$0: could not locate shebang.pl" + exit 1 +fi + +rm -f $pidfile $sock +cleanup_fn rm -f $pidfile $sock + +$script -P $pidfile -U $sock -f -v & + +# We may have to wait a short time for the pid file to appear. +for i in {1..60}; do + if test -f $pidfile; then + break + fi + sleep 1 +done +if ! test -f $pidfile; then + echo "$0: PID file was not created" + exit 1 +fi + +pid="$(cat $pidfile)" +cleanup_fn kill $pid + +# Check the process exists. +kill -s 0 $pid + +# Check the socket was created (and is a socket). +test -S $sock + +# Kill the process. +kill $pid + +# Check the process exits (eventually). +for i in {1..10}; do + if ! kill -s 0 $pid; then + break; + fi + sleep 1 +done +if kill -s 0 $pid; then + echo "$0: process did not exit after sending a signal" + exit 1 +fi diff --git a/tests/test-shebang-python.sh b/tests/test-shebang-python.sh new file mode 100755 index 0000000..9919798 --- /dev/null +++ b/tests/test-shebang-python.sh @@ -0,0 +1,83 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2017 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh + +pidfile=shebang-python.pid +sock=`mktemp -u` +script=$SRCDIR/shebang.py + +if test ! -d "$SRCDIR"; then + echo "$0: could not locate shebang.py" + exit 1 +fi + +rm -f $pidfile $sock +cleanup_fn rm -f $pidfile $sock + +$script -P $pidfile -U $sock -f -v & + +# We may have to wait a short time for the pid file to appear. +for i in {1..60}; do + if test -f $pidfile; then + break + fi + sleep 1 +done +if ! test -f $pidfile; then + echo "$0: PID file was not created" + exit 1 +fi + +pid="$(cat $pidfile)" +cleanup_fn kill $pid + +# Check the process exists. +kill -s 0 $pid + +# Check the socket was created (and is a socket). +test -S $sock + +# Kill the process. +kill $pid + +# Check the process exits (eventually). +for i in {1..10}; do + if ! kill -s 0 $pid; then + break; + fi + sleep 1 +done +if kill -s 0 $pid; then + echo "$0: process did not exit after sending a signal" + exit 1 +fi diff --git a/tests/test-shebang-ruby.sh b/tests/test-shebang-ruby.sh new file mode 100755 index 0000000..70ac9b3 --- /dev/null +++ b/tests/test-shebang-ruby.sh @@ -0,0 +1,78 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2017 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh + +pidfile=shebang-ruby.pid +sock=`mktemp -u` +script=./shebang.rb + +rm -f $pidfile $sock +cleanup_fn rm -f $pidfile $sock + +$script -P $pidfile -U $sock -f -v & + +# We may have to wait a short time for the pid file to appear. +for i in {1..60}; do + if test -f $pidfile; then + break + fi + sleep 1 +done +if ! test -f $pidfile; then + echo "$0: PID file was not created" + exit 1 +fi + +pid="$(cat $pidfile)" +cleanup_fn kill $pid + +# Check the process exists. +kill -s 0 $pid + +# Check the socket was created (and is a socket). +test -S $sock + +# Kill the process. +kill $pid + +# Check the process exits (eventually). +for i in {1..10}; do + if ! kill -s 0 $pid; then + break; + fi + sleep 1 +done +if kill -s 0 $pid; then + echo "$0: process did not exit after sending a signal" + exit 1 +fi diff --git a/tests/test-shell.sh b/tests/test-shell.sh new file mode 100755 index 0000000..a744b27 --- /dev/null +++ b/tests/test-shell.sh @@ -0,0 +1,77 @@ +#!/usr/bin/env sh + +# Assume that the current directory is the tests/ directory. +# If this fails we're probably running the test from the wrong +# directory. +f=test-shell.img +if [ ! -r $f ]; then + echo "cannot find disk image $f" >&2 + exit 1 +fi + +# nbdkit is supposed to set $tmpdir. If it doesn't, it's an error. +if [ ! -d $tmpdir ]; then + echo "\$tmpdir was not set" >&2 + exit 1 +fi + +# Check that SIGPIPE is not ignored unless we want it that way. +if (type yes) >/dev/null 2>&1; then + ignored=$(trap "" 13; + ({ yes; echo $? >&3; } | head -c1) 3>&1 >/dev/null 2>&1) + default=$(trap - 13; + ({ yes; echo $? >&3; } | head -c1) 3>&1 >/dev/null 2>&1) + if [ $ignored = $default ]; then + echo "SIGPIPE was inherited ignored" >&2 + exit 1; + fi +fi + +case "$1" in + open) + echo handle + ;; + + get_size) + stat -L -c '%s' $f || exit 1 + ;; + + pread) + dd iflag=skip_bytes,count_bytes skip=$4 count=$3 if=$f || \ + exit 1 + ;; + + pwrite) + dd oflag=seek_bytes conv=notrunc seek=$4 of=$f || exit 1 + ;; + can_write) + ;; + + flush) + sync + ;; + can_flush) + ;; + + trim) + fallocate -p -o $4 -l $3 -n $f + ;; + can_trim) + # We can trim if the fallocate command exists. + fallocate --help >/dev/null 2>&1 || exit 3 + ;; + + zero) + fallocate -z -o $4 -l $3 -n $f + ;; + can_zero) + # We can zero efficiently if the fallocate command exists. + fallocate --help >/dev/null 2>&1 || exit 3 + ;; + + *) + # Unknown methods must exit with code 2. + exit 2 +esac + +exit 0 diff --git a/tests/test-single-from-file.sh b/tests/test-single-from-file.sh new file mode 100755 index 0000000..d836810 --- /dev/null +++ b/tests/test-single-from-file.sh @@ -0,0 +1,43 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2014-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Check that the -s option can be used from a plain file. This is +# used when we fuzz nbdkit (see fuzzing/README) so we should try not +# to break it. + +source ./functions.sh +set -e +set -x + +testcase=$srcdir/../fuzzing/testcase_dir/newstyle-cflags-go + +nbdkit -f -v -s memory size=1M <$testcase >/dev/null diff --git a/tests/test-single.sh b/tests/test-single.sh new file mode 100755 index 0000000..3458c48 --- /dev/null +++ b/tests/test-single.sh @@ -0,0 +1,69 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2014 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +requires socat -h +requires qemu-img --version + +sock=`mktemp -u` +files="$sock single.disk" +rm -f $files + +truncate -s 1G single.disk + +socat unix-listen:$sock,reuseaddr,fork \ + exec:'nbdkit -r -s file single.disk' & +pid=$! + +cleanup () +{ + kill $pid + rm -f $files +} +cleanup_fn cleanup + +# Wait for socat to start up and create the socket. +for i in {1..10}; do + if test -S $sock; then + break + fi + sleep 1 +done +if ! test -S $sock; then + echo "$0: socket was not created" + exit 1 +fi + +qemu-img info nbd:unix:$sock diff --git a/tests/test-socket-activation.c b/tests/test-socket-activation.c new file mode 100644 index 0000000..f98a9d6 --- /dev/null +++ b/tests/test-socket-activation.c @@ -0,0 +1,250 @@ +/* nbdkit + * Copyright (C) 2017 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* Test socket activation. + * + * We cannot use the test framework for this since the framework + * always uses the -U flag which is incompatible with socket + * activation. Unfortunately this does mean we duplicate some code + * from the test framework. + * + * It's *almost* possible to test this from a shell script + * (cf. test-ip.sh) but as far as I can tell setting LISTEN_PID + * correctly is impossible from shell. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <fcntl.h> +#include <unistd.h> +#include <signal.h> +#include <errno.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <sys/un.h> +#include <sys/wait.h> + +#define FIRST_SOCKET_ACTIVATION_FD 3 + +#define NBDKIT_START_TIMEOUT 30 /* seconds */ + +/* Declare program_name. */ +#if HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME == 1 +#include <errno.h> +#define program_name program_invocation_short_name +#else +#define program_name "nbdkit" +#endif + +static char tmpdir[] = "/tmp/nbdkitXXXXXX"; +static char sockpath[] = "/tmp/nbdkitXXXXXX/sock"; +static char pidpath[] = "/tmp/nbdkitXXXXXX/pid"; + +static pid_t pid = 0; + +static void +cleanup (void) +{ + int status; + + if (pid > 0) { + kill (pid, SIGTERM); + + /* Check the status of nbdkit is normal on exit. */ + if (waitpid (pid, &status, 0) == -1) { + perror ("waitpid"); + _exit (EXIT_FAILURE); + } + if (WIFEXITED (status) && WEXITSTATUS (status) != 0) { + _exit (WEXITSTATUS (status)); + } + if (WIFSIGNALED (status)) { + /* Note that nbdkit is supposed to catch the signal we send and + * exit cleanly, so the following shouldn't happen. + */ + fprintf (stderr, "nbdkit terminated by signal %d\n", WTERMSIG (status)); + _exit (EXIT_FAILURE); + } + if (WIFSTOPPED (status)) { + fprintf (stderr, "nbdkit stopped by signal %d\n", WSTOPSIG (status)); + _exit (EXIT_FAILURE); + } + } + + unlink (pidpath); + unlink (sockpath); + rmdir (tmpdir); +} + +int +main (int argc, char *argv[]) +{ + int sock; + struct sockaddr_un addr; + char pid_str[16]; + size_t i, len; + char magic[8]; + + if (mkdtemp (tmpdir) == NULL) { + perror ("mkdtemp"); + exit (EXIT_FAILURE); + } + len = strlen (tmpdir); + memcpy (sockpath, tmpdir, len); + memcpy (pidpath, tmpdir, len); + + atexit (cleanup); + + /* Open the listening socket which will be passed into nbdkit. */ + sock = socket (AF_UNIX, SOCK_STREAM /* NB do not use SOCK_CLOEXEC */, 0); + if (sock == -1) { + perror ("socket"); + exit (EXIT_FAILURE); + } + + addr.sun_family = AF_UNIX; + len = strlen (sockpath); + memcpy (addr.sun_path, sockpath, len+1 /* trailing \0 */); + + if (bind (sock, (struct sockaddr *) &addr, sizeof addr) == -1) { + perror (sockpath); + exit (EXIT_FAILURE); + } + + if (listen (sock, 1) == -1) { + perror ("listen"); + exit (EXIT_FAILURE); + } + + if (sock != FIRST_SOCKET_ACTIVATION_FD) { + if (dup2 (sock, FIRST_SOCKET_ACTIVATION_FD) == -1) { + perror ("dup2"); + exit (EXIT_FAILURE); + } + close (sock); + } + + /* Run nbdkit. */ + pid = fork (); + if (pid == -1) { + perror ("fork"); + exit (EXIT_FAILURE); + } + if (pid == 0) { + /* Run nbdkit in the child. */ + setenv ("LISTEN_FDS", "1", 1); + snprintf (pid_str, sizeof pid_str, "%d", (int) getpid ()); + setenv ("LISTEN_PID", pid_str, 1); + + execlp ("nbdkit", + "nbdkit", + "-P", pidpath, + "-o", + "-v", + "example1", NULL); + perror ("exec: nbdkit"); + _exit (EXIT_FAILURE); + } + + /* We don't need the listening socket now. */ + close (sock); + + /* Wait for the pidfile to turn up, which indicates that nbdkit has + * started up successfully and is ready to serve requests. However + * if 'pid' exits in this time it indicates a failure to start up. + * Also there is a timeout in case nbdkit hangs. + */ + for (i = 0; i < NBDKIT_START_TIMEOUT; ++i) { + if (waitpid (pid, NULL, WNOHANG) == pid) + goto early_exit; + + if (kill (pid, 0) == -1) { + if (errno == ESRCH) { + early_exit: + fprintf (stderr, + "%s FAILED: nbdkit exited before starting to serve files\n", + program_name); + pid = 0; + exit (EXIT_FAILURE); + } + perror ("kill"); + } + + if (access (pidpath, F_OK) == 0) + break; + + sleep (1); + } + + /* Now nbdkit is supposed to be listening on the Unix domain socket + * (which it got via the listening socket that we passed down to it, + * not from the path), so we should be able to connect to the Unix + * domain socket by its path and receive an NBD magic string. + */ +#ifdef SOCK_CLOEXEC + sock = socket (AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0); +#else + sock = socket (AF_UNIX, SOCK_STREAM, 0); + fcntl (sock, F_SETFD, FD_CLOEXEC); +#endif + if (sock == -1) { + perror ("socket"); + exit (EXIT_FAILURE); + } + + /* Reuse addr which was set up above. */ + if (connect (sock, (struct sockaddr *) &addr, sizeof addr) == -1) { + perror (sockpath); + exit (EXIT_FAILURE); + } + + if (read (sock, magic, 8) != 8) { + perror ("read"); + exit (EXIT_FAILURE); + } + + if (memcmp (magic, "NBDMAGIC", 8) != 0) { + fprintf (stderr, "%s FAILED: did not read magic string from server\n", + program_name); + exit (EXIT_FAILURE); + } + + close (sock); + + /* Test succeeded. */ + exit (EXIT_SUCCESS); +} diff --git a/tests/test-split.c b/tests/test-split.c new file mode 100644 index 0000000..0df3ea2 --- /dev/null +++ b/tests/test-split.c @@ -0,0 +1,104 @@ +/* nbdkit + * Copyright (C) 2017 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> + +#include <guestfs.h> + +#include "test.h" + +int +main (int argc, char *argv[]) +{ + guestfs_h *g; + int r; + char *data; + size_t i, size; + + if (test_start_nbdkit ("split", + "split1", "split2", + "file=split3" /* leave file= to test */, + NULL) == -1) + exit (EXIT_FAILURE); + + g = guestfs_create (); + if (g == NULL) { + perror ("guestfs_create"); + exit (EXIT_FAILURE); + } + + r = guestfs_add_drive_opts (g, "", + GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw", + GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd", + GUESTFS_ADD_DRIVE_OPTS_SERVER, server, + -1); + if (r == -1) + exit (EXIT_FAILURE); + + if (guestfs_launch (g) == -1) + exit (EXIT_FAILURE); + + /* Check the data in the file is \x01-\x08 repeated 512 times. */ + data = guestfs_pread_device (g, "/dev/sda", 8 * 512, 0, &size); + if (!data) + exit (EXIT_FAILURE); + if (size != 8 * 512) { + fprintf (stderr, + "%s FAILED: unexpected size " + "(actual: %zu, expected: 512)\n", + program_name, size); + exit (EXIT_FAILURE); + } + + for (i = 0; i < 512 * 8; i += 8) { + if (data[i] != 1 || data[i+1] != 2 || + data[i+2] != 3 || data[i+3] != 4 || + data[i+4] != 5 || data[i+5] != 6 || + data[i+6] != 7 || data[i+7] != 8) { + fprintf (stderr, "%s FAILED: unexpected data returned at offset %zu\n", + program_name, i); + exit (EXIT_FAILURE); + } + } + + free (data); + + guestfs_close (g); + exit (EXIT_SUCCESS); +} diff --git a/tests/test-ssh.sh b/tests/test-ssh.sh new file mode 100755 index 0000000..e350616 --- /dev/null +++ b/tests/test-ssh.sh @@ -0,0 +1,65 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +requires sshd -t -f ssh/sshd_config +requires qemu-img --version + +# Check that ssh to localhost will work without any passwords or phrases. +requires ssh -V +if ! ssh -o PreferredAuthentications=none,publickey -o StrictHostKeyChecking=no localhost echo </dev/null +then + echo "$0: passwordless/phraseless authentication to localhost not possible" + exit 77 +fi + +files="ssh.img" +rm -f $files +cleanup_fn rm -f $files + +`which sshd` -f ssh/sshd_config -D -e & +sshd_pid=$! +cleanup_fn kill $sshd_pid + +# Get the sshd port number which was randomly assigned. +port="$(grep ^Port ssh/sshd_config | awk '{print $2}')" + +# Run nbdkit with the ssh plugin to copy a file. +nbdkit -v -D ssh.log=2 -U - \ + ssh host=localhost $PWD/disk \ + --run 'qemu-img convert $nbd ssh.img' + +# The output should be identical. +cmp disk ssh.img diff --git a/tests/test-start.sh b/tests/test-start.sh new file mode 100755 index 0000000..08b52aa --- /dev/null +++ b/tests/test-start.sh @@ -0,0 +1,66 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2014 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +# Test nbdkit starts up, forks in the background, writes a PID file, +# and can be killed. + +sock=`mktemp -u` +rm -f start.pid $sock +cleanup_fn rm -f start.pid $sock + +start_nbdkit -P start.pid -U $sock example1 +pid="$(cat start.pid)" + +# Check the process exists. +kill -s 0 $pid + +# Check the socket was created (and is a socket). +test -S $sock + +# Kill the process. +kill $pid + +# Check the process exits (eventually). +for i in {1..10}; do + if ! kill -s 0 $pid; then + break; + fi + sleep 1 +done +if kill -s 0 $pid; then + echo "$0: process did not exit after sending a signal" + exit 1 +fi diff --git a/tests/test-streaming.c b/tests/test-streaming.c new file mode 100644 index 0000000..4aaac9c --- /dev/null +++ b/tests/test-streaming.c @@ -0,0 +1,160 @@ +/* nbdkit + * Copyright (C) 2014 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <fcntl.h> +#include <unistd.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/wait.h> + +#include <guestfs.h> + +#include "test.h" + +static char data[65536]; + +int +main (int argc, char *argv[]) +{ + pid_t md5pid; + guestfs_h *g; + int r; + size_t i; + int pipefd[2]; + char md5[33]; + int status; + + unlink ("streaming.fifo"); + if (mknod ("streaming.fifo", S_IFIFO | 0600, 0) == -1) { + perror ("streaming.fifo"); + exit (EXIT_FAILURE); + } + + if (test_start_nbdkit ("streaming", "pipe=streaming.fifo", "size=640k", + NULL) == -1) + exit (EXIT_FAILURE); + + /* Fork to run a second process which reads from streaming.fifo + * and checks that the content is correct. + */ + if (pipe (pipefd) == -1) { + perror ("pipe"); + exit (EXIT_FAILURE); + } + + md5pid = fork (); + if (md5pid == -1) { + perror ("fork"); + exit (EXIT_FAILURE); + } + + if (md5pid == 0) { + /* Child: run md5sum on the pipe. */ + char *argv[] = { "md5sum", NULL }; + + close (0); + open ("streaming.fifo", O_RDONLY); + close (1); + dup2 (pipefd[1], 1); + close (pipefd[0]); + + execvp ("md5sum", argv); + perror ("md5sum"); + _exit (EXIT_FAILURE); + } + + close (pipefd[1]); + + g = guestfs_create (); + if (g == NULL) { + perror ("guestfs_create"); + exit (EXIT_FAILURE); + } + + r = guestfs_add_drive_opts (g, "", + GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw", + GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd", + GUESTFS_ADD_DRIVE_OPTS_SERVER, server, + -1); + if (r == -1) + exit (EXIT_FAILURE); + + if (guestfs_launch (g) == -1) + exit (EXIT_FAILURE); + + /* Write linearly to the virtual disk. */ + memset (data, 1, sizeof data); + for (i = 0; i < 10; ++i) { + guestfs_pwrite_device (g, "/dev/sda", data, sizeof data, + i * sizeof data); + } + + if (guestfs_shutdown (g) == -1) + exit (EXIT_FAILURE); + + guestfs_close (g); + + /* We have to explicitly kill nbdkit here so that it closes the + * pipe. + */ + kill (pid, SIGINT); + + /* Check the hash computed by the child process. */ + if (read (pipefd[0], md5, 32) != 32) { + perror ("read"); + exit (EXIT_FAILURE); + } + md5[32] = '\0'; + + if (strcmp (md5, "2c7f81c580f7f9eb52c1bd2f6f493b6f") != 0) { + fprintf (stderr, "unexpected hash: %s\n", md5); + exit (EXIT_FAILURE); + } + + if (waitpid (md5pid, &status, 0) == -1) { + perror ("waitpid"); + exit (EXIT_FAILURE); + } + if (status != 0) { + fprintf (stderr, "md5sum subprocess failed\n"); + exit (EXIT_FAILURE); + } + + exit (EXIT_SUCCESS); +} diff --git a/tests/test-tls-psk.sh b/tests/test-tls-psk.sh new file mode 100755 index 0000000..c5f4f97 --- /dev/null +++ b/tests/test-tls-psk.sh @@ -0,0 +1,83 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +requires qemu-img --version + +if ! qemu-img --help | grep -- --object; then + echo "$0: 'qemu-img' command does not have the --object option" + exit 77 +fi + +# Does the qemu-img binary support PSK? +if LANG=C qemu-img info --object tls-creds-psk,id=id disk |& + grep -sq "invalid object type: tls-creds-psk" +then + echo "$0: 'qemu-img' command does not support TLS-PSK" + exit 77 +fi + +# Does the nbdkit binary support TLS? +if ! nbdkit --dump-config | grep -sq tls=yes; then + echo "$0: nbdkit built without TLS support" + exit 77 +fi + +# Did we create the PSK keys file? +# Probably 'certtool' is missing. +if [ ! -s keys.psk ]; then + echo "$0: PSK keys file was not created by the test harness" + exit 77 +fi + +# Unfortunately qemu cannot do TLS over a Unix domain socket (nbdkit +# probably can, although it is not tested). Find an unused port to +# listen on. +pick_unused_port + +cleanup_fn rm -f tls-psk.pid tls-psk.out +start_nbdkit -P tls-psk.pid -p $port -n \ + --tls=require --tls-psk=keys.psk example1 + +# Run qemu-img against the server. +LANG=C \ +qemu-img info \ + --object "tls-creds-psk,id=tls0,endpoint=client,dir=$PWD" \ + --image-opts "file.driver=nbd,file.host=localhost,file.port=$port,file.tls-creds=tls0" > tls-psk.out + +cat tls-psk.out + +grep -sq "^file format: raw" tls-psk.out +grep -sq "^virtual size: 100M" tls-psk.out diff --git a/tests/test-tls.sh b/tests/test-tls.sh new file mode 100755 index 0000000..4c3d010 --- /dev/null +++ b/tests/test-tls.sh @@ -0,0 +1,76 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2017 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +requires qemu-img --version + +if ! qemu-img --help | grep -- --object; then + echo "$0: 'qemu-img' command does not have the --object option" + exit 77 +fi + +# Does the nbdkit binary support TLS? +if ! nbdkit --dump-config | grep -sq tls=yes; then + echo "$0: nbdkit built without TLS support" + exit 77 +fi + +# Did we create the PKI files? +# Probably 'certtool' is missing. +pkidir="$PWD/pki" +if [ ! -f "$pkidir/ca-cert.pem" ]; then + echo "$0: PKI files were not created by the test harness" + exit 77 +fi + +# Unfortunately qemu cannot do TLS over a Unix domain socket (nbdkit +# probably can, although it is not tested). Find an unused port to +# listen on. +pick_unused_port + +cleanup_fn rm -f tls.pid tls.out +start_nbdkit -P tls.pid -p $port -n --tls=require \ + --tls-certificates="$pkidir" example1 + +# Run qemu-img against the server. +LANG=C \ +qemu-img info \ + --object "tls-creds-x509,id=tls0,endpoint=client,dir=$pkidir" \ + --image-opts "file.driver=nbd,file.host=localhost,file.port=$port,file.tls-creds=tls0" > tls.out + +cat tls.out + +grep -sq "^file format: raw" tls.out +grep -sq "^virtual size: 100M" tls.out diff --git a/tests/test-truncate-extents.sh b/tests/test-truncate-extents.sh new file mode 100755 index 0000000..e1840c2 --- /dev/null +++ b/tests/test-truncate-extents.sh @@ -0,0 +1,105 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Unfortunately the output of this test depends on the PAGE_SIZE +# defined in common/sparse/sparse.c and would change (breaking the +# test) if we ever changed that definition. + +source ./functions.sh +set -e +set -x + +requires jq --version +requires qemu-img --version +requires qemu-img map --help + +out="test-truncate-extents.out" +expected="test-truncate-extents.expected" +files="$out $expected" +rm -f $files +cleanup_fn rm -f $files + +do_test () +{ + # We use jq to normalize the output and convert it to plain text. + nbdkit -U - \ + --filter=truncate \ + data data="$1" size="$2" \ + truncate="$3" \ + --run 'qemu-img map -f raw --output=json $nbd' | + jq -c '.[] | {start:.start, length:.length, data:.data, zero:.zero}' \ + > $out + if ! cmp $out $expected; then + echo "$0: output did not match expected data" + echo "expected:" + cat $expected + echo "output:" + cat $out + exit 1 + fi +} + +# Completely sparse disk. +cat > $expected <<'EOF' +{"start":0,"length":65536,"data":false,"zero":true} +EOF +do_test "" 1M 65536 + +# Completely allocated disk. +cat > $expected <<'EOF' +{"start":0,"length":32768,"data":true,"zero":false} +EOF +do_test "1 @32768 1 @65536 1 @98304 1" 128K 32768 + +#---------------------------------------------------------------------- +# The above are the easy cases. Now let's truncate to a larger +# size which should create a hole at the end. + +# Completely sparse disk. +cat > $expected <<'EOF' +{"start":0,"length":1048576,"data":false,"zero":true} +EOF +do_test "" 65536 1M + +# Completely allocated disk. +cat > $expected <<'EOF' +{"start":0,"length":512,"data":true,"zero":false} +{"start":512,"length":1048064,"data":false,"zero":true} +EOF +do_test "1" 512 1M + +# Zero-length plugin. Unlike nbdkit-zero-plugin, the data plugin +# advertises extents and so will behave differently. +cat > $expected <<'EOF' +{"start":0,"length":0,"data":false,"zero":false} +EOF +do_test "" 0 0 diff --git a/tests/test-truncate1.sh b/tests/test-truncate1.sh new file mode 100755 index 0000000..b98de50 --- /dev/null +++ b/tests/test-truncate1.sh @@ -0,0 +1,90 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Test the truncate filter using the pattern plugin. + +source ./functions.sh +set -e +set -x + +requires qemu-io --version + +sock=`mktemp -u` +files="truncate1.out truncate1.pid $sock" +rm -f $files +cleanup_fn rm -f $files + +# Run nbdkit with pattern plugin and truncate filter in front. +start_nbdkit -P truncate1.pid -U $sock \ + --filter=truncate \ + pattern size=503 \ + truncate=512 + +qemu-io -r -f raw "nbd+unix://?socket=$sock" \ + -c 'r -v 0 512' | grep -E '^[[:xdigit:]]+:' > truncate1.out +if [ "$(cat truncate1.out)" != "00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08 ................ +00000010: 00 00 00 00 00 00 00 10 00 00 00 00 00 00 00 18 ................ +00000020: 00 00 00 00 00 00 00 20 00 00 00 00 00 00 00 28 ................ +00000030: 00 00 00 00 00 00 00 30 00 00 00 00 00 00 00 38 .......0.......8 +00000040: 00 00 00 00 00 00 00 40 00 00 00 00 00 00 00 48 ...............H +00000050: 00 00 00 00 00 00 00 50 00 00 00 00 00 00 00 58 .......P.......X +00000060: 00 00 00 00 00 00 00 60 00 00 00 00 00 00 00 68 ...............h +00000070: 00 00 00 00 00 00 00 70 00 00 00 00 00 00 00 78 .......p.......x +00000080: 00 00 00 00 00 00 00 80 00 00 00 00 00 00 00 88 ................ +00000090: 00 00 00 00 00 00 00 90 00 00 00 00 00 00 00 98 ................ +000000a0: 00 00 00 00 00 00 00 a0 00 00 00 00 00 00 00 a8 ................ +000000b0: 00 00 00 00 00 00 00 b0 00 00 00 00 00 00 00 b8 ................ +000000c0: 00 00 00 00 00 00 00 c0 00 00 00 00 00 00 00 c8 ................ +000000d0: 00 00 00 00 00 00 00 d0 00 00 00 00 00 00 00 d8 ................ +000000e0: 00 00 00 00 00 00 00 e0 00 00 00 00 00 00 00 e8 ................ +000000f0: 00 00 00 00 00 00 00 f0 00 00 00 00 00 00 00 f8 ................ +00000100: 00 00 00 00 00 00 01 00 00 00 00 00 00 00 01 08 ................ +00000110: 00 00 00 00 00 00 01 10 00 00 00 00 00 00 01 18 ................ +00000120: 00 00 00 00 00 00 01 20 00 00 00 00 00 00 01 28 ................ +00000130: 00 00 00 00 00 00 01 30 00 00 00 00 00 00 01 38 .......0.......8 +00000140: 00 00 00 00 00 00 01 40 00 00 00 00 00 00 01 48 ...............H +00000150: 00 00 00 00 00 00 01 50 00 00 00 00 00 00 01 58 .......P.......X +00000160: 00 00 00 00 00 00 01 60 00 00 00 00 00 00 01 68 ...............h +00000170: 00 00 00 00 00 00 01 70 00 00 00 00 00 00 01 78 .......p.......x +00000180: 00 00 00 00 00 00 01 80 00 00 00 00 00 00 01 88 ................ +00000190: 00 00 00 00 00 00 01 90 00 00 00 00 00 00 01 98 ................ +000001a0: 00 00 00 00 00 00 01 a0 00 00 00 00 00 00 01 a8 ................ +000001b0: 00 00 00 00 00 00 01 b0 00 00 00 00 00 00 01 b8 ................ +000001c0: 00 00 00 00 00 00 01 c0 00 00 00 00 00 00 01 c8 ................ +000001d0: 00 00 00 00 00 00 01 d0 00 00 00 00 00 00 01 d8 ................ +000001e0: 00 00 00 00 00 00 01 e0 00 00 00 00 00 00 01 e8 ................ +000001f0: 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 00 ................" ] +then + echo "$0: unexpected pattern:" + cat truncate1.out + exit 1 +fi diff --git a/tests/test-truncate2.sh b/tests/test-truncate2.sh new file mode 100755 index 0000000..bb00ec2 --- /dev/null +++ b/tests/test-truncate2.sh @@ -0,0 +1,90 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Test the truncate filter using the pattern plugin. + +source ./functions.sh +set -e +set -x + +requires qemu-io --version + +sock=`mktemp -u` +files="truncate2.out truncate2.pid $sock" +rm -f $files +cleanup_fn rm -f $files + +# Run nbdkit with pattern plugin and truncate filter in front. +start_nbdkit -P truncate2.pid -U $sock \ + --filter=truncate \ + pattern size=503 \ + round-up=512 + +qemu-io -r -f raw "nbd+unix://?socket=$sock" \ + -c 'r -v 0 512' | grep -E '^[[:xdigit:]]+:' > truncate2.out +if [ "$(cat truncate2.out)" != "00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08 ................ +00000010: 00 00 00 00 00 00 00 10 00 00 00 00 00 00 00 18 ................ +00000020: 00 00 00 00 00 00 00 20 00 00 00 00 00 00 00 28 ................ +00000030: 00 00 00 00 00 00 00 30 00 00 00 00 00 00 00 38 .......0.......8 +00000040: 00 00 00 00 00 00 00 40 00 00 00 00 00 00 00 48 ...............H +00000050: 00 00 00 00 00 00 00 50 00 00 00 00 00 00 00 58 .......P.......X +00000060: 00 00 00 00 00 00 00 60 00 00 00 00 00 00 00 68 ...............h +00000070: 00 00 00 00 00 00 00 70 00 00 00 00 00 00 00 78 .......p.......x +00000080: 00 00 00 00 00 00 00 80 00 00 00 00 00 00 00 88 ................ +00000090: 00 00 00 00 00 00 00 90 00 00 00 00 00 00 00 98 ................ +000000a0: 00 00 00 00 00 00 00 a0 00 00 00 00 00 00 00 a8 ................ +000000b0: 00 00 00 00 00 00 00 b0 00 00 00 00 00 00 00 b8 ................ +000000c0: 00 00 00 00 00 00 00 c0 00 00 00 00 00 00 00 c8 ................ +000000d0: 00 00 00 00 00 00 00 d0 00 00 00 00 00 00 00 d8 ................ +000000e0: 00 00 00 00 00 00 00 e0 00 00 00 00 00 00 00 e8 ................ +000000f0: 00 00 00 00 00 00 00 f0 00 00 00 00 00 00 00 f8 ................ +00000100: 00 00 00 00 00 00 01 00 00 00 00 00 00 00 01 08 ................ +00000110: 00 00 00 00 00 00 01 10 00 00 00 00 00 00 01 18 ................ +00000120: 00 00 00 00 00 00 01 20 00 00 00 00 00 00 01 28 ................ +00000130: 00 00 00 00 00 00 01 30 00 00 00 00 00 00 01 38 .......0.......8 +00000140: 00 00 00 00 00 00 01 40 00 00 00 00 00 00 01 48 ...............H +00000150: 00 00 00 00 00 00 01 50 00 00 00 00 00 00 01 58 .......P.......X +00000160: 00 00 00 00 00 00 01 60 00 00 00 00 00 00 01 68 ...............h +00000170: 00 00 00 00 00 00 01 70 00 00 00 00 00 00 01 78 .......p.......x +00000180: 00 00 00 00 00 00 01 80 00 00 00 00 00 00 01 88 ................ +00000190: 00 00 00 00 00 00 01 90 00 00 00 00 00 00 01 98 ................ +000001a0: 00 00 00 00 00 00 01 a0 00 00 00 00 00 00 01 a8 ................ +000001b0: 00 00 00 00 00 00 01 b0 00 00 00 00 00 00 01 b8 ................ +000001c0: 00 00 00 00 00 00 01 c0 00 00 00 00 00 00 01 c8 ................ +000001d0: 00 00 00 00 00 00 01 d0 00 00 00 00 00 00 01 d8 ................ +000001e0: 00 00 00 00 00 00 01 e0 00 00 00 00 00 00 01 e8 ................ +000001f0: 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 00 ................" ] +then + echo "$0: unexpected pattern:" + cat truncate2.out + exit 1 +fi diff --git a/tests/test-truncate3.sh b/tests/test-truncate3.sh new file mode 100755 index 0000000..4eab353 --- /dev/null +++ b/tests/test-truncate3.sh @@ -0,0 +1,58 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Regression test for problem with truncate filter and C type +# promotion, spotted by Eric Blake. + +source ./functions.sh +set -e +set -x + +requires qemu-img --version + +sock=`mktemp -u` +files="truncate3.out truncate3.pid $sock" +rm -f $files +cleanup_fn rm -f $files + +# Run nbdkit with pattern plugin and truncate filter in front. +start_nbdkit -P truncate3.pid -U $sock \ + --filter=truncate \ + pattern size=5G \ + round-up=512 + +LANG=C qemu-img info nbd:unix:$sock > truncate3.out +if ! grep "virtual size: 5.0G" truncate3.out; then + echo "$0: unexpected output from truncate3 regression test:" + cat truncate3.out + exit 1 +fi diff --git a/tests/test-vddk-real.sh b/tests/test-vddk-real.sh new file mode 100755 index 0000000..60f634c --- /dev/null +++ b/tests/test-vddk-real.sh @@ -0,0 +1,68 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018-2019 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +requires test "x$vddkdir" != "x" +requires test -d "$vddkdir" +requires test -f "$vddkdir/lib64/libvixDiskLib.so" +requires qemu-img --version + +# VMware only supports i686 or x86_64 so this is fine: +case `uname -m` in + i?86) lib=lib32 ;; + x86_64) lib=lib64 ;; + *) + echo "$0: unsupported architecture" + exit 77 +esac + +files="test-vddk-real.vmdk test-vddk-real.out" +rm -f $files +cleanup_fn rm -f $files + +qemu-img create -f vmdk test-vddk-real.vmdk 100M + +export old_ld_library_path="$LD_LIBRARY_PATH" +export LD_LIBRARY_PATH="$vddkdir/$lib:$LD_LIBRARY_PATH" + +nbdkit -f -v -U - \ + --filter=readahead \ + vddk libdir="$vddkdir" file=test-vddk-real.vmdk \ + --run ' + # VDDK library path breaks qemu-img, we must restore the + # original path here. + export LD_LIBRARY_PATH="$old_ld_library_path" + qemu-img convert $nbd -O raw test-vddk-real.out +' diff --git a/tests/test-vddk.sh b/tests/test-vddk.sh new file mode 100755 index 0000000..19b946b --- /dev/null +++ b/tests/test-vddk.sh @@ -0,0 +1,45 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +rm -f test-vddk.out +cleanup_fn rm -f test-vddk.out + +LD_LIBRARY_PATH=.libs:$LD_LIBRARY_PATH \ +LIBRARY_PATH=.libs:$LIBRARY_PATH \ +nbdkit vddk --dump-plugin > test-vddk.out +cat test-vddk.out + +grep ^vddk_default_libdir= test-vddk.out diff --git a/tests/test-version-filter.sh b/tests/test-version-filter.sh new file mode 100755 index 0000000..162dfdd --- /dev/null +++ b/tests/test-version-filter.sh @@ -0,0 +1,44 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2016-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e + +cmd="nbdkit --filter offset --filter=cow file --version" +output="$($cmd)" +if [[ ! ( "$output" =~ file\ 1\. ) || + ! ( "$output" =~ offset\ 1\. ) || + ! ( "$output" =~ cow\ 1\. ) ]]; then + echo "$0: unexpected output from $cmd" + echo "$output" + exit 1 +fi diff --git a/tests/test-version-plugin.sh b/tests/test-version-plugin.sh new file mode 100755 index 0000000..d9f9218 --- /dev/null +++ b/tests/test-version-plugin.sh @@ -0,0 +1,41 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2016 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e + +output="$(nbdkit file --version)" +if [[ ! ( "$output" =~ file\ 1\. ) ]]; then + echo "$0: unexpected output from nbdkit file --version" + echo "$output" + exit 1 +fi diff --git a/tests/test-version.sh b/tests/test-version.sh new file mode 100755 index 0000000..f8457cb --- /dev/null +++ b/tests/test-version.sh @@ -0,0 +1,61 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2016 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -e +set -x + +output="$(nbdkit --version)" +if [[ ! ( "$output" =~ ^nbdkit\ 1\. ) ]]; then + echo "$0: unexpected output from nbdkit --version" + echo "$output" + exit 1 +fi + +# Run nbdkit plugin --version for each plugin. +# However some of these tests are expected to fail. +test () +{ + vg=; [ "$NBDKIT_VALGRIND" = "1" ] && vg="-valgrind" + case "$1$vg" in + vddk | vddk-valgrind) + echo "$0: skipping $1$vg because VDDK cannot run without special environment variables" + ;; + python-valgrind | ruby-valgrind | tcl-valgrind) + echo "$0: skipping $1$vg because this language doesn't support valgrind" + ;; + *) + nbdkit $1 --version + ;; + esac +} +foreach_plugin test diff --git a/tests/test-xz-curl.c b/tests/test-xz-curl.c new file mode 100644 index 0000000..f0fcb17 --- /dev/null +++ b/tests/test-xz-curl.c @@ -0,0 +1,115 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdbool.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> + +#include <guestfs.h> + +#include "web-server.h" + +#include "test.h" + +int +main (int argc, char *argv[]) +{ + const char *sockpath; + size_t n; + guestfs_h *g; + int r; + char *data; + +#ifndef HAVE_CURLOPT_UNIX_SOCKET_PATH + fprintf (stderr, "%s: curl does not support CURLOPT_UNIX_SOCKET_PATH\n", + argv[0]); + exit (77); +#endif + + sockpath = web_server ("disk.xz"); + if (sockpath == NULL) { + fprintf (stderr, "test-xz-curl: could not start web server thread\n"); + exit (EXIT_FAILURE); + } + + /* Start nbdkit. */ + n = strlen ("unix_socket_path") + 1 + strlen (sockpath) + 1; + char usp_param[n]; + snprintf (usp_param, n, "%s=%s", "unix_socket_path", sockpath); + if (test_start_nbdkit ("--filter=xz", + "curl", usp_param, "http://localhost/disk.xz", + NULL) == -1) + exit (EXIT_FAILURE); + + g = guestfs_create (); + if (g == NULL) { + perror ("guestfs_create"); + exit (EXIT_FAILURE); + } + + r = guestfs_add_drive_opts (g, "", + GUESTFS_ADD_DRIVE_OPTS_READONLY, 1, + GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw", + GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd", + GUESTFS_ADD_DRIVE_OPTS_SERVER, server, + -1); + if (r == -1) + exit (EXIT_FAILURE); + + if (guestfs_launch (g) == -1) + exit (EXIT_FAILURE); + + /* disk.xz contains one partition and a test file called "hello.txt" */ + if (guestfs_mount_ro (g, "/dev/sda1", "/") == -1) + exit (EXIT_FAILURE); + + data = guestfs_cat (g, "/hello.txt"); + if (!data) + exit (EXIT_FAILURE); + + if (strcmp (data, "hello,world") != 0) { + fprintf (stderr, + "%s FAILED: unexpected content of /hello.txt file " + "(actual: %s, expected: \"hello,world\")\n", + program_name, data); + exit (EXIT_FAILURE); + } + + guestfs_close (g); + exit (EXIT_SUCCESS); +} diff --git a/tests/test-xz.c b/tests/test-xz.c new file mode 100644 index 0000000..817d3a9 --- /dev/null +++ b/tests/test-xz.c @@ -0,0 +1,92 @@ +/* nbdkit + * Copyright (C) 2013-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <unistd.h> + +#include <guestfs.h> + +#include "test.h" + +int +main (int argc, char *argv[]) +{ + guestfs_h *g; + int r; + char *data; + + if (test_start_nbdkit ("--filter=xz", "file", "disk.xz", NULL) == -1) + exit (EXIT_FAILURE); + + g = guestfs_create (); + if (g == NULL) { + perror ("guestfs_create"); + exit (EXIT_FAILURE); + } + + r = guestfs_add_drive_opts (g, "", + GUESTFS_ADD_DRIVE_OPTS_READONLY, 1, + GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw", + GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd", + GUESTFS_ADD_DRIVE_OPTS_SERVER, server, + -1); + if (r == -1) + exit (EXIT_FAILURE); + + if (guestfs_launch (g) == -1) + exit (EXIT_FAILURE); + + /* disk.xz contains one partition and a test file called "hello.txt" */ + if (guestfs_mount_ro (g, "/dev/sda1", "/") == -1) + exit (EXIT_FAILURE); + + data = guestfs_cat (g, "/hello.txt"); + if (!data) + exit (EXIT_FAILURE); + + if (strcmp (data, "hello,world") != 0) { + fprintf (stderr, + "%s FAILED: unexpected content of /hello.txt file " + "(actual: %s, expected: \"hello,world\")\n", + program_name, data); + exit (EXIT_FAILURE); + } + + guestfs_close (g); + exit (EXIT_SUCCESS); +} diff --git a/tests/test-zero.sh b/tests/test-zero.sh new file mode 100755 index 0000000..a5bcd51 --- /dev/null +++ b/tests/test-zero.sh @@ -0,0 +1,47 @@ +#!/usr/bin/env bash +# nbdkit +# Copyright (C) 2017-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +source ./functions.sh +set -x +set -e + +requires qemu-img --version + +files="test-zero.out" +rm -f $files +cleanup_fn rm -f $files + +nbdkit -U - zero --run 'qemu-img convert $nbd test-zero.out' + +# Resulting file should be zero-sized. +test -f test-zero.out +! test -s test-zero.out diff --git a/tests/test.c b/tests/test.c new file mode 100644 index 0000000..1fc9e05 --- /dev/null +++ b/tests/test.c @@ -0,0 +1,209 @@ +/* nbdkit + * Copyright (C) 2013 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdarg.h> +#include <string.h> +#include <unistd.h> +#include <sys/types.h> +#include <sys/wait.h> +#include <signal.h> +#include <errno.h> +#include <assert.h> + +#include "test.h" + +/* 'test_start_nbdkit' below makes assumptions about the format of + * these strings. + */ +#define TEST_NBDKIT_TEMPLATE "/tmp/nbdkitXXXXXX" +struct test_nbdkit { + char tmpdir[ 17 + 1]; /* template, NUL */ + char sockpath[ 17 + 5 + 1]; /* template, "/sock", NUL */ + char unixsockpath[5 + 17 + 5 + 1]; /* "unix:", template, "/sock", NUL */ + char pidpath[ 17 + 4 + 1]; /* template, "/pid", NUL */ + pid_t pid; + struct test_nbdkit *next; +}; +const struct test_nbdkit template = { + .tmpdir = TEST_NBDKIT_TEMPLATE, + .sockpath = TEST_NBDKIT_TEMPLATE "/sock", + .unixsockpath = "unix:" TEST_NBDKIT_TEMPLATE "/sock", + .pidpath = TEST_NBDKIT_TEMPLATE "/pid", +}; + +static struct test_nbdkit *head; + +pid_t pid = 0; +const char *sock = NULL; +const char *server[2] = { NULL, NULL }; + +static void +cleanup (void) +{ + int status; + struct test_nbdkit *next; + + while (head) { + if (head->pid > 0) { + assert (!pid || pid == head->pid); + pid = 0; + kill (head->pid, SIGTERM); + + /* Check the status of nbdkit is normal on exit. */ + if (waitpid (head->pid, &status, 0) == -1) { + perror ("waitpid"); + _exit (EXIT_FAILURE); + } + if (WIFEXITED (status) && WEXITSTATUS (status) != 0) { + _exit (WEXITSTATUS (status)); + } + if (WIFSIGNALED (status)) { + /* Note that nbdkit is supposed to catch the signal we send and + * exit cleanly, so the following shouldn't happen. + */ + fprintf (stderr, "nbdkit terminated by signal %d\n", WTERMSIG (status)); + _exit (EXIT_FAILURE); + } + if (WIFSTOPPED (status)) { + fprintf (stderr, "nbdkit stopped by signal %d\n", WSTOPSIG (status)); + _exit (EXIT_FAILURE); + } + } + + unlink (head->pidpath); + unlink (head->sockpath); + rmdir (head->tmpdir); + + next = head->next; + free (head); + head = next; + } +} + +int +test_start_nbdkit (const char *arg, ...) +{ + size_t i, len; + struct test_nbdkit *kit = malloc (sizeof *kit); + + if (!kit) { + perror ("malloc"); + return -1; + } + *kit = template; + if (mkdtemp (kit->tmpdir) == NULL) { + perror ("mkdtemp"); + free (kit); + return -1; + } + len = strlen (kit->tmpdir); + memcpy (kit->sockpath, kit->tmpdir, len); + memcpy (kit->unixsockpath+5, kit->tmpdir, len); + memcpy (kit->pidpath, kit->tmpdir, len); + + kit->pid = fork (); + if (kit->pid == 0) { /* Child (nbdkit). */ + const char *p; + const int MAX_ARGS = 64; + const char *argv[MAX_ARGS+1]; + va_list args; + + argv[0] = "nbdkit"; + argv[1] = "-U"; + argv[2] = kit->sockpath; + argv[3] = "-P"; + argv[4] = kit->pidpath; + argv[5] = "-f"; + argv[6] = "-v"; + argv[7] = arg; + i = 8; + + va_start (args, arg); + while ((p = va_arg (args, const char *)) != NULL) { + if (i >= MAX_ARGS) + abort (); + argv[i] = p; + ++i; + } + va_end (args); + argv[i] = NULL; + + execvp ("nbdkit", (char **) argv); + perror ("exec: nbdkit"); + _exit (EXIT_FAILURE); + } + + /* Ensure nbdkit is killed and temporary files are deleted when the + * main program exits. + */ + if (head) + kit->next = head; + else + atexit (cleanup); + head = kit; + pid = kit->pid; + sock = kit->sockpath; + server[0] = kit->unixsockpath; + + /* Wait for the pidfile to turn up, which indicates that nbdkit has + * started up successfully and is ready to serve requests. However + * if 'pid' exits in this time it indicates a failure to start up. + * Also there is a timeout in case nbdkit hangs. + */ + for (i = 0; i < NBDKIT_START_TIMEOUT; ++i) { + if (waitpid (pid, NULL, WNOHANG) == pid) + goto early_exit; + + if (kill (pid, 0) == -1) { + if (errno == ESRCH) { + early_exit: + fprintf (stderr, + "%s FAILED: nbdkit exited before starting to serve files\n", + program_name); + pid = 0; + return -1; + } + perror ("kill"); + } + + if (access (kit->pidpath, F_OK) == 0) + break; + + sleep (1); + } + + return 0; +} diff --git a/tests/test.h b/tests/test.h new file mode 100644 index 0000000..cf74d14 --- /dev/null +++ b/tests/test.h @@ -0,0 +1,58 @@ +/* nbdkit + * Copyright (C) 2013 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef NBDKIT_TEST_H +#define NBDKIT_TEST_H + +#include <stdarg.h> +#include <unistd.h> + +#define NBDKIT_START_TIMEOUT 30 /* seconds */ + +extern pid_t pid; /* PID of most recent nbdkit process */ +extern const char *sock; /* socket of most recent nbdkit process */ +extern const char *server[2]; /* server parameter for add_drive */ + +/* Can be called more than once (useful for nbd plugin) */ +extern int test_start_nbdkit (const char *arg, ...) + __attribute__((__nonnull__ (1))) + __attribute__((__sentinel__)); + +/* Declare program_name. */ +#if HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME == 1 +#include <errno.h> +#define program_name program_invocation_short_name +#else +#define program_name "nbdkit" +#endif + +#endif /* NBDKIT_TEST_H */ diff --git a/tests/test.lua b/tests/test.lua new file mode 100644 index 0000000..e3bd421 --- /dev/null +++ b/tests/test.lua @@ -0,0 +1,27 @@ +disk = string.rep ('\0', 1024*1024) + +-- Lua strings are indexed from 1, which is crazy. This is a +-- sane substring function. +function disk_sub (n, len) + return disk:sub (n+1, n+len) +end + +function open (readonly) + return 1 +end + +function get_size (h) + return disk:len() +end + +function pread (h, count, offset) + return disk_sub(offset, count) +end + +function pwrite (h, buf, offset) + -- There's no built-in mutable string type, so this is going + -- to be very inefficient. + local count = buf:len() + local end_len = disk:len() - (offset+count) + disk = disk_sub(0, offset) .. buf .. disk_sub(offset+count, end_len) +end diff --git a/tests/test.pl b/tests/test.pl new file mode 100644 index 0000000..2eb57ca --- /dev/null +++ b/tests/test.pl @@ -0,0 +1,78 @@ +use strict; + +my $disk = "\0" x (1024*1024); + +sub config_complete +{ +} + +sub open +{ + my $readonly = shift; + my $h = { readonly => $readonly }; + return $h; +} + +sub close +{ + my $h = shift; +} + +sub get_size +{ + my $h = shift; + return length ($disk); +} + +sub can_write +{ + my $h = shift; + return 1; +} + +sub can_flush +{ + my $h = shift; + return 1; +} + +sub is_rotational +{ + my $h = shift; + return 0; +} + +sub can_trim +{ + my $h = shift; + return 1; +} + +sub pread +{ + my $h = shift; + my $count = shift; + my $offset = shift; + return substr ($disk, $offset, $count); +} + +sub pwrite +{ + my $h = shift; + my $buf = shift; + my $count = length ($buf); + my $offset = shift; + substr ($disk, $offset, $count) = $buf; +} + +sub flush +{ + my $h = shift; +} + +sub trim +{ + my $h = shift; + my $count = shift; + my $offset = shift; +} diff --git a/tests/test.py b/tests/test.py new file mode 100644 index 0000000..9a2e947 --- /dev/null +++ b/tests/test.py @@ -0,0 +1,56 @@ +import nbdkit + +disk = bytearray(1024*1024) + + +def config_complete(): + print ("set_error = %r" % nbdkit.set_error) + + +def open(readonly): + return 1 + + +def get_size(h): + global disk + return len(disk) + + +def can_write(h): + return True + + +def can_flush(h): + return True + + +def is_rotational(h): + return False + + +def can_trim(h): + return True + + +def pread(h, count, offset): + global disk + return disk[offset:offset+count] + + +def pwrite(h, buf, offset): + global disk + end = offset + len(buf) + disk[offset:end] = buf + + +def zero(h, count, offset, may_trim=False): + global disk + disk[offset:offset+count] = bytearray(count) + + +def flush(h): + pass + + +def trim(h, count, offset): + pass diff --git a/tests/test.rb b/tests/test.rb new file mode 100644 index 0000000..063d51e --- /dev/null +++ b/tests/test.rb @@ -0,0 +1,43 @@ +$disk = "\0" * (1024*1024); + +def config_complete() +end + +def open(readonly) + return {} +end + +def get_size(h) + return $disk.bytesize +end + +def can_write(h) + return true +end + +def can_flush(h) + return true +end + +def is_rotational(h) + return false +end + +def can_trim(h) + return true +end + +def pread(h, count, offset) + return $disk.byteslice(offset, count) +end + +def pwrite(h, buf, offset) + # Is this using bytes or chars? XXX + $disk[offset, buf.length] = buf +end + +def flush(h) +end + +def trim(h, count, offset) +end diff --git a/tests/test.tcl b/tests/test.tcl new file mode 100644 index 0000000..57e8d15 --- /dev/null +++ b/tests/test.tcl @@ -0,0 +1,28 @@ +# XXX This actually creates a Unicode (UCS-2) array. It's also rather +# slow to run. It's possible we should be using a list instead. +set disk [string repeat "\u0000" [expr 1024*1024]] + +proc plugin_open {readonly} { + return 1 +} + +proc get_size {h} { + global disk + + return [string length $disk] +} + +proc pread {h count offset} { + global disk + + set last [expr $offset+$count-1] + return [string range $disk $offset $last] +} + +proc pwrite {h buf offset} { + global disk + + set count [string length $buf] + set last [expr $offset+$count-1] + set disk [string replace $disk $offset $last $buf] +} diff --git a/tests/test_ocaml_plugin.ml b/tests/test_ocaml_plugin.ml new file mode 100644 index 0000000..842f10e --- /dev/null +++ b/tests/test_ocaml_plugin.ml @@ -0,0 +1,58 @@ +type handle = { + disk : bytes; (* The disk image. *) +} + +let test_load () = + NBDKit.debug "test ocaml plugin loaded" + +let test_unload () = + NBDKit.debug "test ocaml plugin unloaded" + +let params = ref [] + +let test_config k v = + params := (k, v) :: !params + +let test_config_complete () = + let params = List.rev !params in + assert (params = [ "a", "1"; "b", "2"; "c", "3" ]) + +let test_open readonly = + NBDKit.debug "test ocaml plugin handle opened readonly=%b" readonly; + let disk = Bytes.make (1024*1024) '\000' in + { disk } + +let test_close h = + () + +let test_get_size h = + Int64.of_int (Bytes.length h.disk) + +let test_pread h buf offset _ = + let len = Bytes.length buf in + Bytes.blit h.disk (Int64.to_int offset) buf 0 len + +let test_pwrite h buf offset _ = + let len = String.length buf in + String.blit buf 0 h.disk (Int64.to_int offset) len + +let plugin = { + NBDKit.default_callbacks with + NBDKit.name = "testocaml"; + version = "1.0"; + + load = Some test_load; + unload = Some test_unload; + config = Some test_config; + config_complete = Some test_config_complete; + + open_connection = Some test_open; + close = Some test_close; + get_size = Some test_get_size; + pread = Some test_pread; + pwrite = Some test_pwrite; +} + +let thread_model = NBDKit.THREAD_MODEL_SERIALIZE_CONNECTIONS + +let () = NBDKit.register_plugin thread_model plugin diff --git a/tests/web-server.c b/tests/web-server.c new file mode 100644 index 0000000..d79924f --- /dev/null +++ b/tests/web-server.c @@ -0,0 +1,320 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* See web-server.h */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdbool.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <fcntl.h> +#include <unistd.h> +#include <errno.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/socket.h> +#include <sys/un.h> + +#include <pthread.h> + +static char tmpdir[] = "/tmp/wsXXXXXX"; +static char sockpath[] = "............./sock"; +static int listen_sock = -1; +static int fd = -1; +static struct stat statbuf; +static char request[16384]; + +static void *start_web_server (void *arg); +static void handle_requests (int s); +static void handle_request (int s, bool headers_only); +static void xwrite (int s, const char *buf, size_t len); +static void xpread (int fd, char *buf, size_t count, off_t offset); + +static void +cleanup (void) +{ + if (fd >= 0) + close (fd); + if (listen_sock >= 0) + close (listen_sock); + unlink (sockpath); + rmdir (tmpdir); +} + +const char * +web_server (const char *filename) +{ + struct sockaddr_un addr; + pthread_t thread; + int err; + + /* Open the file. */ + fd = open (filename, O_RDONLY|O_CLOEXEC); + if (fd == -1) { + perror (filename); + return NULL; + } + if (fstat (fd, &statbuf) == -1) { + perror ("stat"); + goto err1; + } + + /* Create the temporary directory for the socket. */ + if (mkdtemp (tmpdir) == NULL) { + perror ("mkdtemp"); + goto err1; + } + + /* Create the listening socket for the web server. */ + memcpy (sockpath, tmpdir, strlen (tmpdir)); + listen_sock = socket (AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0); + if (listen_sock == -1) { + perror ("socket"); + goto err2; + } + + addr.sun_family = AF_UNIX; + memcpy (addr.sun_path, sockpath, strlen (sockpath) + 1); + if (bind (listen_sock, (struct sockaddr *) &addr, sizeof addr) == -1) { + perror (sockpath); + goto err3; + } + + if (listen (listen_sock, SOMAXCONN) == -1) { + perror ("listen"); + goto err4; + } + + /* Run the web server in a separate thread. */ + err = pthread_create (&thread, NULL, start_web_server, NULL); + if (err) { + errno = err; + perror ("pthread_create"); + goto err4; + } + err = pthread_detach (thread); + if (err) { + errno = err; + perror ("pthread_detach"); + goto err4; + } + + atexit (cleanup); + + return sockpath; + + err4: + unlink (sockpath); + err3: + close (listen_sock); + err2: + rmdir (tmpdir); + err1: + close (fd); + return NULL; +} + +static void * +start_web_server (void *arg) +{ + int s; + + fprintf (stderr, "web server: listening on %s\n", sockpath); + + for (;;) { + s = accept (listen_sock, NULL, NULL); + if (s == -1) { + perror ("accept"); + exit (EXIT_FAILURE); + } + handle_requests (s); + } +} + +static void +handle_requests (int s) +{ + size_t r, n, sz; + bool eof = false; + + fprintf (stderr, "web server: accepted connection\n"); + + while (!eof) { + /* Read request until we see "\r\n\r\n" (end of headers) or EOF. */ + n = 0; + for (;;) { + if (n >= sizeof request - 1 /* allow one byte for \0 */) { + fprintf (stderr, "web server: request too long\n"); + exit (EXIT_FAILURE); + } + sz = sizeof request - n - 1; + r = read (s, &request[n], sz); + if (r == -1) { + perror ("read"); + exit (EXIT_FAILURE); + } + if (r == 0) { + eof = true; + break; + } + n += r; + request[n] = '\0'; + if (strstr (request, "\r\n\r\n")) + break; + } + + if (n == 0) + continue; + + fprintf (stderr, "web server: request:\n%s", request); + + /* HEAD or GET request? */ + if (strncmp (request, "HEAD ", 5) == 0) + handle_request (s, true); + else if (strncmp (request, "GET ", 4) == 0) + handle_request (s, false); + else { + /* Return 405 Method Not Allowed. */ + const char response[] = + "HTTP/1.1 405 Method Not Allowed\r\n" + "Content-Length: 0\r\n" + "Connection: close\r\n" + "\r\n"; + xwrite (s, response, strlen (response)); + eof = true; + break; + } + } + + close (s); +} + +static void +handle_request (int s, bool headers_only) +{ + uint64_t offset, length, end; + const char *p; + const char response1_ok[] = "HTTP/1.1 200 OK\r\n"; + const char response1_partial[] = "HTTP/1.1 206 Partial Content\r\n"; + const char response2[] = + "Accept-Ranges: bytes\r\n" + "Connection: keep-alive\r\n" + "Content-Type: application/octet-stream\r\n"; + char response3[64]; + const char response4[] = "\r\n"; + char *data; + + /* If there's no Range request header then send the full size as the + * content-length. + */ + p = strcasestr (request, "\r\nRange: bytes="); + if (p == NULL) { + offset = 0; + length = statbuf.st_size; + xwrite (s, response1_ok, strlen (response1_ok)); + } + else { + p += 15; + if (sscanf (p, "%" SCNu64 "-%" SCNu64, &offset, &end) != 2) { + fprintf (stderr, "web server: could not parse " + "range request from curl client\n"); + exit (EXIT_FAILURE); + } + /* Unclear but "Range: bytes=0-4" means bytes 0-3. '4' is the + * byte beyond the end of the range. + */ + length = end - offset; + xwrite (s, response1_partial, strlen (response1_partial)); + } + + xwrite (s, response2, strlen (response2)); + snprintf (response3, sizeof response3, + "Content-Length: %" PRIu64 "\r\n", length); + xwrite (s, response3, strlen (response3)); + xwrite (s, response4, strlen (response4)); + + if (headers_only) + return; + + /* Send the file content. */ + data = malloc (length); + if (data == NULL) { + perror ("malloc"); + exit (EXIT_FAILURE); + } + + xpread (fd, data, length, offset); + xwrite (s, data, length); + + free (data); +} + +static void +xwrite (int s, const char *buf, size_t len) +{ + ssize_t r; + + while (len > 0) { + r = write (s, buf, len); + if (r == -1) { + perror ("write"); + exit (EXIT_FAILURE); + } + buf += r; + len -= r; + } +} + +static void +xpread (int fd, char *buf, size_t count, off_t offset) +{ + ssize_t r; + + while (count > 0) { + r = pread (fd, buf, count, offset); + if (r == -1) { + perror ("read"); + exit (EXIT_FAILURE); + } + if (r == 0) { + fprintf (stderr, "pread: unexpected end of file\n"); + exit (EXIT_FAILURE); + } + buf += r; + count -= r; + offset += r; + } +} diff --git a/tests/web-server.h b/tests/web-server.h new file mode 100644 index 0000000..1f9e9d0 --- /dev/null +++ b/tests/web-server.h @@ -0,0 +1,60 @@ +/* nbdkit + * Copyright (C) 2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* This implements a basic web server supporting range requests. Note + * that its only purpose is to answer queries from libcurl over a Unix + * domain socket. Any use outside that extremely narrow one will + * probably not work. + * + * It is also not written with security in mind and therefore should + * only be used for testing over a hidden socket. In the context of + * the nbdkit tests this assumption is sound. + */ + +#ifndef NBDKIT_WEB_SERVER_H +#define NBDKIT_WEB_SERVER_H + +/* Starts a web server in a background thread. The web server will + * serve 'filename' (only) - the URL in requests is ignored. + * + * Returns the name of the private Unix domain socket which can be + * used to connect to this web server (using Curl's UNIX_SOCKET_PATH + * feature). + * + * The thread will run until the program exits. The Unix socket is + * cleaned up automatically on exit. Note that the returned string + * must NOT be freed by the main program. + */ +extern const char *web_server (const char *filename) + __attribute__((__nonnull__ (1))); + +#endif /* NBDKIT_WEB_SERVER_H */ diff --git a/valgrind/Makefile.am b/valgrind/Makefile.am new file mode 100644 index 0000000..f9d76dc --- /dev/null +++ b/valgrind/Makefile.am @@ -0,0 +1,46 @@ +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +include $(top_srcdir)/common-rules.mk + +suppressions_files = $(wildcard $(srcdir)/*.suppressions) + +EXTRA_DIST = $(suppressions_files) + +noinst_DATA = suppressions + +suppressions: $(suppressions_files) + rm -f $@ $@-t + cat $^ > $@-t + mv $@-t $@ + chmod 0444 $@ + +DISTCLEANFILES = suppressions diff --git a/valgrind/Makefile.in b/valgrind/Makefile.in new file mode 100644 index 0000000..9902e3b --- /dev/null +++ b/valgrind/Makefile.in @@ -0,0 +1,599 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# nbdkit +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# nbdkit +# Copyright (C) 2013-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +VPATH = @srcdir@ +am__is_gnu_make = { \ + if test -z '$(MAKELEVEL)'; then \ + false; \ + elif test -n '$(MAKE_HOST)'; then \ + true; \ + elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \ + true; \ + else \ + false; \ + fi; \ +} +am__make_running_with_option = \ + case $${target_option-} in \ + ?) ;; \ + *) echo "am__make_running_with_option: internal error: invalid" \ + "target option '$${target_option-}' specified" >&2; \ + exit 1;; \ + esac; \ + 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mostlyclean-am + +mostlyclean-am: mostlyclean-generic mostlyclean-libtool + +pdf: pdf-am + +pdf-am: + +ps: ps-am + +ps-am: + +uninstall-am: + +.MAKE: install-am install-strip + +.PHONY: all all-am check check-am clean clean-generic clean-libtool \ + cscopelist-am ctags-am distclean distclean-generic \ + distclean-libtool distdir dvi dvi-am html html-am info info-am \ + install install-am install-data install-data-am install-dvi \ + install-dvi-am install-exec install-exec-am install-html \ + install-html-am install-info install-info-am install-man \ + install-pdf install-pdf-am install-ps install-ps-am \ + install-strip installcheck installcheck-am installdirs \ + maintainer-clean maintainer-clean-generic mostlyclean \ + mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \ + tags-am uninstall uninstall-am + +.PRECIOUS: Makefile + + +suppressions: $(suppressions_files) + rm -f $@ $@-t + cat $^ > $@-t + mv $@-t $@ + chmod 0444 $@ + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/valgrind/ext2fs.suppressions b/valgrind/ext2fs.suppressions new file mode 100644 index 0000000..1bb0128 --- /dev/null +++ b/valgrind/ext2fs.suppressions @@ -0,0 +1,38 @@ +# ext2fs valgrind suppressions +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# The error table is always leaked. +{ + ext2fs_1 + Memcheck:Leak + fun:malloc + fun:initialize_ext2_error_table_r +} diff --git a/valgrind/glibc.suppressions b/valgrind/glibc.suppressions new file mode 100644 index 0000000..3fd83df --- /dev/null +++ b/valgrind/glibc.suppressions @@ -0,0 +1,105 @@ +# glibc valgrind suppressions +# Copyright (C) 2016-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Allow thread-local storage from pthread_create to leak. +{ + glibc_1 + Memcheck:Leak + fun:calloc + ... + fun:_dl_allocate_tls +} + +# Suppress leaks from dlopen. When running under valgrind we +# deliberately don't run dlclose because otherwise valgrind cannot +# print symbols. So it's expected that dlopen will leak. +{ + glibc_2 + Memcheck:Leak + ... + obj:/usr/lib*/libdl-* +} + +# bindtextdomain leaks. +{ + glibc_3 + Memcheck:Leak + ... + fun:bindtextdomain +} + +# Both gmtime_r and locatime_r leak some sort of timezone-related +# struct inside glibc. These are used by the log filter and the +# floppy plugin. +{ + glibc_4 + Memcheck:Leak + fun:malloc + ... + fun:tzset_internal +} + +# __printf_chk leaks. +{ + glibc_5 + Memcheck:Leak + fun:malloc + ... + fun:__printf_chk +} + +# iconv is very leaky, even if we close the handle. +{ + glibc_6 + Memcheck:Leak + fun:malloc + ... + fun:__gconv_open +} + +{ + glibc_7 + Memcheck:Leak + fun:calloc + ... + fun:__gconv_open +} + +# getaddrinfo leaks a memory allocation even though we +# call freeaddrinfo. +{ + glibc_8 + Memcheck:Leak + fun:malloc + ... + fun:__check_pf + fun:getaddrinfo +} diff --git a/valgrind/nbdkit.suppressions b/valgrind/nbdkit.suppressions new file mode 100644 index 0000000..7cbdb5b --- /dev/null +++ b/valgrind/nbdkit.suppressions @@ -0,0 +1,95 @@ +# nbdkit valgrind suppressions +# Copyright (C) 2016-2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# This is a fairly unavoidable leak which happens when we fork +# into the background. The foreground process exits, but does +# not free the malloc'd list of sockets. +{ + nbdkit_1 + Memcheck:Leak + fun:malloc + fun:bind_unix_socket +} + +# Accepting a connection starts a thread (which allocates a thread +# stack). However if we get a signal then there's no way to cleanly +# exit all threads in progress, so the stack leaks. +{ + nbdkit_2 + Memcheck:Leak + ... + fun:allocate_stack +} + +# close methods are not guaranteed to be called if a connection is in +# progress when the server is being shut down, so leaks in various +# *_open functions are fairly inevitable. We simply have to check by +# hand that the following leaks are not possible under normal +# circumstances, and then add them to this list. +{ + nbdkit_3 + Memcheck:Leak + fun:malloc + fun:error_open + fun:filter_open +} + +{ + nbdkit_4 + Memcheck:Leak + fun:malloc + fun:file_open + fun:plugin_open +} + +{ + nbdkit_5 + Memcheck:Leak + fun:malloc + fun:memory_open + fun:plugin_open +} + +{ + nbdkit_6 + Memcheck:Leak + fun:malloc + fun:null_open + fun:plugin_open +} + +{ + nbdkit_7 + Memcheck:Leak + fun:malloc + fun:partition_open + fun:filter_open +} diff --git a/valgrind/perl.suppressions b/valgrind/perl.suppressions new file mode 100644 index 0000000..1deb457 --- /dev/null +++ b/valgrind/perl.suppressions @@ -0,0 +1,47 @@ +# Perl valgrind suppressions +# Copyright (C) 2018 Red Hat Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# * Neither the name of Red Hat nor the names of its contributors may be +# used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, +# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT +# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +# Perl leaks lots of memory by design. +{ + perl_1 + Memcheck:Leak + fun:malloc + ... + fun:perl_construct +} + +{ + perl_2 + Memcheck:Leak + fun:realloc + ... + fun:perl_construct +} diff --git a/wrapper.c b/wrapper.c new file mode 100644 index 0000000..d7bb758 --- /dev/null +++ b/wrapper.c @@ -0,0 +1,273 @@ +/* nbdkit + * Copyright (C) 2017-2018 Red Hat Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/*------------------------------------------------------------ + * This is not nbdkit. This is a wrapper which lets you run nbdkit + * from the source directory without installing nbdkit. + * + * You can use either: + * + * ./nbdkit file [arg=value] [arg=value] ... + * + * or: + * + * /path/to/nbdkit file [arg=value] [arg=value] ... + * + * or you can set $PATH to include the nbdkit source directory and run + * the bare "nbdkit" command without supplying the full path. + * + * The wrapper modifies the bare plugin name (eg. "file") to be the + * full path to the locally compiled plugin. If you don't use this + * program and run server/nbdkit directly then it will pick up the + * globally installed plugins which is usually not what you want. + * + * This program is also used to run the tests (make check). + * + * You can enable valgrind by setting NBDKIT_VALGRIND=1 (this + * is mainly used by the internal tests). + * + * You can enable debugging by setting NBDKIT_GDB=1 + *------------------------------------------------------------ + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <stdbool.h> +#include <stdarg.h> +#include <string.h> +#include <unistd.h> +#include <getopt.h> +#include <limits.h> +#include <time.h> + +#include "options.h" + +/* Construct an array of parameters passed through to real nbdkit. */ +static const char **cmd; +static size_t len; + +/* Plugins written in scripting languages (only Perl right now) need + * to be rewritten on the command line in a different way from plugins + * written in C. So we have to list those here. + */ +static bool +is_perl_plugin (const char *name) +{ + return strcmp (name, "example4") == 0 || strcmp (name, "tar") == 0; +} + +static void +passthru (const char *s) +{ + cmd = realloc (cmd, (len+1) * sizeof (const char *)); + if (cmd == NULL) + abort (); + cmd[len] = s; + ++len; +} + +static void __attribute__((format (printf, 1, 2))) +passthru_format (const char *fs, ...) +{ + va_list args; + char *str; + + va_start (args, fs); + if (vasprintf (&str, fs, args) == -1) + abort (); + va_end (args); + passthru (str); +} + +static void +end_passthru (void) +{ + passthru (NULL); +} + +static void +print_command (void) +{ + size_t i; + + if (len > 0) + fprintf (stderr, "%s", cmd[0]); + for (i = 1; i < len && cmd[i] != NULL; ++i) + fprintf (stderr, " %s", cmd[i]); + fprintf (stderr, "\n"); +} + +int +main (int argc, char *argv[]) +{ + bool verbose = false; + char *s; + time_t t; + unsigned tu; + char ts[32]; + + /* If NBDKIT_VALGRIND=1 is set in the environment, then we run the + * program under valgrind. This is used by the tests. Similarly if + * NBDKIT_GDB=1 is set, we run the program under GDB, useful during + * development. + */ + s = getenv ("NBDKIT_VALGRIND"); + if (s && strcmp (s, "1") == 0) { + passthru (VALGRIND); + passthru ("--vgdb=no"); + passthru ("--leak-check=full"); + passthru ("--show-leak-kinds=all"); + passthru ("--error-exitcode=119"); + passthru_format ("--suppressions=%s/valgrind/suppressions", builddir); + passthru ("--trace-children=no"); + passthru ("--run-libc-freeres=no"); + passthru ("--num-callers=100"); + /* This is a temporary workaround until RHBZ#1662656 is fixed: */ + passthru ("--read-inline-info=no"); + } + else { + s = getenv ("NBDKIT_GDB"); + if (s && strcmp (s, "1") == 0) { + passthru ("gdb"); + passthru ("--args"); + } + } + + /* Absolute path of the real nbdkit command. */ + passthru_format ("%s/server/nbdkit", builddir); + + /* Option parsing. We don't really parse options here. We are only + * interested in which options have arguments and which need + * rewriting. + */ + for (;;) { + int c; + int long_index = -1; + bool is_long_option; + + c = getopt_long (argc, argv, short_options, long_options, &long_index); + if (c == -1) + break; + + if (c == '?') /* getopt prints an error */ + exit (EXIT_FAILURE); + + /* long_index is only set if it's an actual long option. */ + is_long_option = long_index >= 0; + + /* Verbose is special because we will print the final command. */ + if (c == 'v') { + verbose = true; + if (is_long_option) + passthru ("--verbose"); + else + passthru ("-v"); + } + /* Filters can be rewritten if they are a short name. */ + else if (c == FILTER_OPTION) { + if (is_short_name (optarg)) + passthru_format ("--filter=%s/filters/%s/.libs/nbdkit-%s-filter.so", + builddir, optarg, optarg); + else + passthru_format ("--filter=%s", optarg); + } + /* Any long option. */ + else if (is_long_option) { + if (optarg) /* Long option which takes an argument. */ + passthru_format ("--%s=%s", long_options[long_index].name, optarg); + else /* Long option which takes no argument. */ + passthru_format ("--%s", long_options[long_index].name); + } + /* Any short option. */ + else { + passthru_format ("-%c", c); + if (optarg) + passthru (optarg); + } + } + + /* Are there any non-option arguments? */ + if (optind < argc) { + /* Ensure any further parameters can never be parsed as options by + * real nbdkit. + */ + passthru ("--"); + + /* The first non-option argument is the plugin name. If it is a + * short name then rewrite it. + */ + if (is_short_name (argv[optind])) { + /* Special plugins written in Perl. */ + if (is_perl_plugin (argv[optind])) { + passthru_format ("%s/plugins/perl/.libs/nbdkit-perl-plugin.so", + builddir); + passthru_format ("%s/plugins/%s/nbdkit-%s-plugin", + builddir, argv[optind], argv[optind]); + } + else { + passthru_format ("%s/plugins/%s/.libs/nbdkit-%s-plugin.so", + builddir, argv[optind], argv[optind]); + } + ++optind; + } + + /* Everything else is passed through without rewriting. */ + while (optind < argc) { + passthru (argv[optind]); + ++optind; + } + } + + end_passthru (); + if (verbose) + print_command (); + + /* This is a cheap way to find some use-after-free and uninitialized + * read problems when using glibc, and doesn't affect normal + * operation or other libc. We don't overwrite existing values so + * this can be disabled or overridden at runtime. + */ + setenv ("MALLOC_CHECK_", "1", 0); + time (&t); + tu = t; + tu %= 255; + tu++; + snprintf (ts, sizeof ts, "%u", tu); + setenv ("MALLOC_PERTURB_", ts, 0); + + /* Run the final command. */ + execvp (cmd[0], (char **) cmd); + perror (cmd[0]); + exit (EXIT_FAILURE); +}