+++ /dev/null
-/*
- * INET An implementation of the TCP/IP protocol suite for the LINUX
- * operating system. INET is implemented using the BSD Socket
- * interface as the means of communication with the user level.
- *
- * RAW - implementation of IP "raw" sockets.
- *
- * Version: $Id: raw.c,v 1.64 2002/02/01 22:01:04 davem Exp $
- *
- * Authors: Ross Biro, <bir7@leland.Stanford.Edu>
- * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
- *
- * Fixes:
- * Alan Cox : verify_area() fixed up
- * Alan Cox : ICMP error handling
- * Alan Cox : EMSGSIZE if you send too big a packet
- * Alan Cox : Now uses generic datagrams and shared
- * skbuff library. No more peek crashes,
- * no more backlogs
- * Alan Cox : Checks sk->broadcast.
- * Alan Cox : Uses skb_free_datagram/skb_copy_datagram
- * Alan Cox : Raw passes ip options too
- * Alan Cox : Setsocketopt added
- * Alan Cox : Fixed error return for broadcasts
- * Alan Cox : Removed wake_up calls
- * Alan Cox : Use ttl/tos
- * Alan Cox : Cleaned up old debugging
- * Alan Cox : Use new kernel side addresses
- * Arnt Gulbrandsen : Fixed MSG_DONTROUTE in raw sockets.
- * Alan Cox : BSD style RAW socket demultiplexing.
- * Alan Cox : Beginnings of mrouted support.
- * Alan Cox : Added IP_HDRINCL option.
- * Alan Cox : Skip broadcast check if BSDism set.
- * David S. Miller : New socket lookup architecture.
- *
- * 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 of the License, or (at your option) any later version.
- */
-
-#include <linux/config.h>
-#include <asm/atomic.h>
-#include <asm/byteorder.h>
-#include <asm/current.h>
-#include <asm/uaccess.h>
-#include <asm/ioctls.h>
-#include <linux/types.h>
-#include <linux/stddef.h>
-#include <linux/slab.h>
-#include <linux/errno.h>
-#include <linux/aio.h>
-#include <linux/kernel.h>
-#include <linux/spinlock.h>
-#include <linux/sockios.h>
-#include <linux/socket.h>
-#include <linux/in.h>
-#include <linux/mroute.h>
-#include <linux/netdevice.h>
-#include <linux/in_route.h>
-#include <linux/route.h>
-#include <linux/tcp.h>
-#include <linux/skbuff.h>
-#include <net/dst.h>
-#include <net/sock.h>
-#include <linux/gfp.h>
-#include <linux/ip.h>
-#include <linux/net.h>
-#include <net/ip.h>
-#include <net/icmp.h>
-#include <net/udp.h>
-#include <net/raw.h>
-#include <net/snmp.h>
-#include <net/inet_common.h>
-#include <net/checksum.h>
-#include <net/xfrm.h>
-#include <linux/rtnetlink.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/netfilter.h>
-#include <linux/netfilter_ipv4.h>
-
-struct hlist_head raw_v4_htable[RAWV4_HTABLE_SIZE];
-rwlock_t raw_v4_lock = RW_LOCK_UNLOCKED;
-
-static void raw_v4_hash(struct sock *sk)
-{
- struct hlist_head *head = &raw_v4_htable[inet_sk(sk)->num &
- (RAWV4_HTABLE_SIZE - 1)];
-
- write_lock_bh(&raw_v4_lock);
- sk_add_node(sk, head);
- sock_prot_inc_use(sk->sk_prot);
- write_unlock_bh(&raw_v4_lock);
-}
-
-static void raw_v4_unhash(struct sock *sk)
-{
- write_lock_bh(&raw_v4_lock);
- if (sk_del_node_init(sk))
- sock_prot_dec_use(sk->sk_prot);
- write_unlock_bh(&raw_v4_lock);
-}
-
-struct sock *__raw_v4_lookup(struct sock *sk, unsigned short num,
- unsigned long raddr, unsigned long laddr,
- int dif)
-{
- struct hlist_node *node;
-
- sk_for_each_from(sk, node) {
- struct inet_opt *inet = inet_sk(sk);
-
- if (inet->num == num &&
- !(inet->daddr && inet->daddr != raddr) &&
- !(inet->rcv_saddr && inet->rcv_saddr != laddr) &&
- !(sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif))
- goto found; /* gotcha */
- }
- sk = NULL;
-found:
- return sk;
-}
-
-/*
- * 0 - deliver
- * 1 - block
- */
-static __inline__ int icmp_filter(struct sock *sk, struct sk_buff *skb)
-{
- int type;
-
- if (!pskb_may_pull(skb, sizeof(struct icmphdr)))
- return 1;
-
- type = skb->h.icmph->type;
- if (type < 32) {
- __u32 data = raw4_sk(sk)->filter.data;
-
- return ((1 << type) & data) != 0;
- }
-
- /* Do not block unknown ICMP types */
- return 0;
-}
-
-/* IP input processing comes here for RAW socket delivery.
- * Caller owns SKB, so we must make clones.
- *
- * RFC 1122: SHOULD pass TOS value up to the transport layer.
- * -> It does. And not only TOS, but all IP header.
- */
-void raw_v4_input(struct sk_buff *skb, struct iphdr *iph, int hash)
-{
- struct sock *sk;
- struct hlist_head *head;
-
- read_lock(&raw_v4_lock);
- head = &raw_v4_htable[hash];
- if (hlist_empty(head))
- goto out;
- sk = __raw_v4_lookup(__sk_head(head), iph->protocol,
- iph->saddr, iph->daddr,
- skb->dev->ifindex);
-
- while (sk) {
- if (iph->protocol != IPPROTO_ICMP || !icmp_filter(sk, skb)) {
- struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC);
-
- /* Not releasing hash table! */
- if (clone)
- raw_rcv(sk, clone);
- }
- sk = __raw_v4_lookup(sk_next(sk), iph->protocol,
- iph->saddr, iph->daddr,
- skb->dev->ifindex);
- }
-out:
- read_unlock(&raw_v4_lock);
-}
-
-void raw_err (struct sock *sk, struct sk_buff *skb, u32 info)
-{
- struct inet_opt *inet = inet_sk(sk);
- int type = skb->h.icmph->type;
- int code = skb->h.icmph->code;
- int err = 0;
- int harderr = 0;
-
- /* Report error on raw socket, if:
- 1. User requested ip_recverr.
- 2. Socket is connected (otherwise the error indication
- is useless without ip_recverr and error is hard.
- */
- if (!inet->recverr && sk->sk_state != TCP_ESTABLISHED)
- return;
-
- switch (type) {
- default:
- case ICMP_TIME_EXCEEDED:
- err = EHOSTUNREACH;
- break;
- case ICMP_SOURCE_QUENCH:
- return;
- case ICMP_PARAMETERPROB:
- err = EPROTO;
- harderr = 1;
- break;
- case ICMP_DEST_UNREACH:
- err = EHOSTUNREACH;
- if (code > NR_ICMP_UNREACH)
- break;
- err = icmp_err_convert[code].errno;
- harderr = icmp_err_convert[code].fatal;
- if (code == ICMP_FRAG_NEEDED) {
- harderr = inet->pmtudisc != IP_PMTUDISC_DONT;
- err = EMSGSIZE;
- }
- }
-
- if (inet->recverr) {
- struct iphdr *iph = (struct iphdr*)skb->data;
- u8 *payload = skb->data + (iph->ihl << 2);
-
- if (inet->hdrincl)
- payload = skb->data;
- ip_icmp_error(sk, skb, err, 0, info, payload);
- }
-
- if (inet->recverr || harderr) {
- sk->sk_err = err;
- sk->sk_error_report(sk);
- }
-}
-
-static int raw_rcv_skb(struct sock * sk, struct sk_buff * skb)
-{
- /* Charge it to the socket. */
-
- if (sock_queue_rcv_skb(sk, skb) < 0) {
- /* FIXME: increment a raw drops counter here */
- kfree_skb(skb);
- return NET_RX_DROP;
- }
-
- return NET_RX_SUCCESS;
-}
-
-int raw_rcv(struct sock *sk, struct sk_buff *skb)
-{
- if (!xfrm4_policy_check(sk, XFRM_POLICY_IN, skb)) {
- kfree_skb(skb);
- return NET_RX_DROP;
- }
-
- skb_push(skb, skb->data - skb->nh.raw);
-
- raw_rcv_skb(sk, skb);
- return 0;
-}
-
-static int raw_send_hdrinc(struct sock *sk, void *from, int length,
- struct rtable *rt,
- unsigned int flags)
-{
- struct inet_opt *inet = inet_sk(sk);
- int hh_len;
- struct iphdr *iph;
- struct sk_buff *skb;
- int err;
-
- if (length > rt->u.dst.dev->mtu) {
- ip_local_error(sk, EMSGSIZE, rt->rt_dst, inet->dport,
- rt->u.dst.dev->mtu);
- return -EMSGSIZE;
- }
- if (flags&MSG_PROBE)
- goto out;
-
- hh_len = LL_RESERVED_SPACE(rt->u.dst.dev);
-
- skb = sock_alloc_send_skb(sk, length+hh_len+15,
- flags&MSG_DONTWAIT, &err);
- if (skb == NULL)
- goto error;
- skb_reserve(skb, hh_len);
-
- skb->priority = sk->sk_priority;
- skb->dst = dst_clone(&rt->u.dst);
-
- skb->nh.iph = iph = (struct iphdr *)skb_put(skb, length);
-
- skb->ip_summed = CHECKSUM_NONE;
-
- skb->h.raw = skb->nh.raw;
- err = memcpy_fromiovecend((void *)iph, from, 0, length);
- if (err)
- goto error_fault;
-
- /* We don't modify invalid header */
- if (length >= sizeof(*iph) && iph->ihl * 4 <= length) {
- if (!iph->saddr)
- iph->saddr = rt->rt_src;
- iph->check = 0;
- iph->tot_len = htons(length);
- if (!iph->id)
- ip_select_ident(iph, &rt->u.dst, NULL);
-
- iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
- }
-
- err = NF_HOOK(PF_INET, NF_IP_LOCAL_OUT, skb, NULL, rt->u.dst.dev,
- dst_output);
- if (err > 0)
- err = inet->recverr ? net_xmit_errno(err) : 0;
- if (err)
- goto error;
-out:
- return 0;
-
-error_fault:
- err = -EFAULT;
- kfree_skb(skb);
-error:
- IP_INC_STATS(IPSTATS_MIB_OUTDISCARDS);
- return err;
-}
-
-static void raw_probe_proto_opt(struct flowi *fl, struct msghdr *msg)
-{
- struct iovec *iov;
- u8 __user *type = NULL;
- u8 __user *code = NULL;
- int probed = 0;
- int i;
-
- if (!msg->msg_iov)
- return;
-
- for (i = 0; i < msg->msg_iovlen; i++) {
- iov = &msg->msg_iov[i];
- if (!iov)
- continue;
-
- switch (fl->proto) {
- case IPPROTO_ICMP:
- /* check if one-byte field is readable or not. */
- if (iov->iov_base && iov->iov_len < 1)
- break;
-
- if (!type) {
- type = iov->iov_base;
- /* check if code field is readable or not. */
- if (iov->iov_len > 1)
- code = type + 1;
- } else if (!code)
- code = iov->iov_base;
-
- if (type && code) {
- get_user(fl->fl_icmp_type, type);
- __get_user(fl->fl_icmp_code, code);
- probed = 1;
- }
- break;
- default:
- probed = 1;
- break;
- }
- if (probed)
- break;
- }
-}
-
-static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
- size_t len)
-{
- struct inet_opt *inet = inet_sk(sk);
- struct ipcm_cookie ipc;
- struct rtable *rt = NULL;
- int free = 0;
- u32 daddr;
- u32 saddr;
- u8 tos;
- int err;
-
- err = -EMSGSIZE;
- if (len < 0 || len > 0xFFFF)
- goto out;
-
- /*
- * Check the flags.
- */
-
- err = -EOPNOTSUPP;
- if (msg->msg_flags & MSG_OOB) /* Mirror BSD error message */
- goto out; /* compatibility */
-
- /*
- * Get and verify the address.
- */
-
- if (msg->msg_namelen) {
- struct sockaddr_in *usin = (struct sockaddr_in*)msg->msg_name;
- err = -EINVAL;
- if (msg->msg_namelen < sizeof(*usin))
- goto out;
- if (usin->sin_family != AF_INET) {
- static int complained;
- if (!complained++)
- printk(KERN_INFO "%s forgot to set AF_INET in "
- "raw sendmsg. Fix it!\n",
- current->comm);
- err = -EAFNOSUPPORT;
- if (usin->sin_family)
- goto out;
- }
- daddr = usin->sin_addr.s_addr;
- /* ANK: I did not forget to get protocol from port field.
- * I just do not know, who uses this weirdness.
- * IP_HDRINCL is much more convenient.
- */
- } else {
- err = -EDESTADDRREQ;
- if (sk->sk_state != TCP_ESTABLISHED)
- goto out;
- daddr = inet->daddr;
- }
-
- ipc.addr = inet->saddr;
- ipc.opt = NULL;
- ipc.oif = sk->sk_bound_dev_if;
-
- if (msg->msg_controllen) {
- err = ip_cmsg_send(msg, &ipc);
- if (err)
- goto out;
- if (ipc.opt)
- free = 1;
- }
-
- saddr = ipc.addr;
- ipc.addr = daddr;
-
- if (!ipc.opt)
- ipc.opt = inet->opt;
-
- if (ipc.opt) {
- err = -EINVAL;
- /* Linux does not mangle headers on raw sockets,
- * so that IP options + IP_HDRINCL is non-sense.
- */
- if (inet->hdrincl)
- goto done;
- if (ipc.opt->srr) {
- if (!daddr)
- goto done;
- daddr = ipc.opt->faddr;
- }
- }
- tos = RT_TOS(inet->tos) | sk->sk_localroute;
- if (msg->msg_flags & MSG_DONTROUTE)
- tos |= RTO_ONLINK;
-
- if (MULTICAST(daddr)) {
- if (!ipc.oif)
- ipc.oif = inet->mc_index;
- if (!saddr)
- saddr = inet->mc_addr;
- }
-
- {
- struct flowi fl = { .oif = ipc.oif,
- .nl_u = { .ip4_u =
- { .daddr = daddr,
- .saddr = saddr,
- .tos = tos } },
- .proto = inet->hdrincl ? IPPROTO_RAW :
- sk->sk_protocol,
- };
- if (!inet->hdrincl)
- raw_probe_proto_opt(&fl, msg);
-
- err = ip_route_output_flow(&rt, &fl, sk, !(msg->msg_flags&MSG_DONTWAIT));
- }
- if (err)
- goto done;
-
- err = -EACCES;
- if (rt->rt_flags & RTCF_BROADCAST && !sock_flag(sk, SOCK_BROADCAST))
- goto done;
-
- if (msg->msg_flags & MSG_CONFIRM)
- goto do_confirm;
-back_from_confirm:
-
- if (inet->hdrincl)
- err = raw_send_hdrinc(sk, msg->msg_iov, len,
- rt, msg->msg_flags);
-
- else {
- if (!ipc.addr)
- ipc.addr = rt->rt_dst;
- lock_sock(sk);
- err = ip_append_data(sk, ip_generic_getfrag, msg->msg_iov, len, 0,
- &ipc, rt, msg->msg_flags);
- if (err)
- ip_flush_pending_frames(sk);
- else if (!(msg->msg_flags & MSG_MORE))
- err = ip_push_pending_frames(sk);
- release_sock(sk);
- }
-done:
- if (free)
- kfree(ipc.opt);
- ip_rt_put(rt);
-
-out: return err < 0 ? err : len;
-
-do_confirm:
- dst_confirm(&rt->u.dst);
- if (!(msg->msg_flags & MSG_PROBE) || len)
- goto back_from_confirm;
- err = 0;
- goto done;
-}
-
-static void raw_close(struct sock *sk, long timeout)
-{
- /*
- * Raw sockets may have direct kernel refereneces. Kill them.
- */
- ip_ra_control(sk, 0, NULL);
-
- sk_common_release(sk);
-}
-
-/* This gets rid of all the nasties in af_inet. -DaveM */
-static int raw_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
-{
- struct inet_opt *inet = inet_sk(sk);
- struct sockaddr_in *addr = (struct sockaddr_in *) uaddr;
- int ret = -EINVAL;
- int chk_addr_ret;
-
- if (sk->sk_state != TCP_CLOSE || addr_len < sizeof(struct sockaddr_in))
- goto out;
- chk_addr_ret = inet_addr_type(addr->sin_addr.s_addr);
- ret = -EADDRNOTAVAIL;
- if (addr->sin_addr.s_addr && chk_addr_ret != RTN_LOCAL &&
- chk_addr_ret != RTN_MULTICAST && chk_addr_ret != RTN_BROADCAST)
- goto out;
- inet->rcv_saddr = inet->saddr = addr->sin_addr.s_addr;
- if (chk_addr_ret == RTN_MULTICAST || chk_addr_ret == RTN_BROADCAST)
- inet->saddr = 0; /* Use device */
- sk_dst_reset(sk);
- ret = 0;
-out: return ret;
-}
-
-/*
- * This should be easy, if there is something there
- * we return it, otherwise we block.
- */
-
-int raw_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
- size_t len, int noblock, int flags, int *addr_len)
-{
- struct inet_opt *inet = inet_sk(sk);
- size_t copied = 0;
- int err = -EOPNOTSUPP;
- struct sockaddr_in *sin = (struct sockaddr_in *)msg->msg_name;
- struct sk_buff *skb;
-
- if (flags & MSG_OOB)
- goto out;
-
- if (addr_len)
- *addr_len = sizeof(*sin);
-
- if (flags & MSG_ERRQUEUE) {
- err = ip_recv_error(sk, msg, len);
- goto out;
- }
-
- skb = skb_recv_datagram(sk, flags, noblock, &err);
- if (!skb)
- goto out;
-
- copied = skb->len;
- if (len < copied) {
- msg->msg_flags |= MSG_TRUNC;
- copied = len;
- }
-
- err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
- if (err)
- goto done;
-
- sock_recv_timestamp(msg, sk, skb);
-
- /* Copy the address. */
- if (sin) {
- sin->sin_family = AF_INET;
- sin->sin_addr.s_addr = skb->nh.iph->saddr;
- memset(&sin->sin_zero, 0, sizeof(sin->sin_zero));
- }
- if (inet->cmsg_flags)
- ip_cmsg_recv(msg, skb);
- if (flags & MSG_TRUNC)
- copied = skb->len;
-done:
- skb_free_datagram(sk, skb);
-out: return err ? err : copied;
-}
-
-static int raw_init(struct sock *sk)
-{
- struct raw_opt *tp = raw4_sk(sk);
- if (inet_sk(sk)->num == IPPROTO_ICMP)
- memset(&tp->filter, 0, sizeof(tp->filter));
- return 0;
-}
-
-static int raw_seticmpfilter(struct sock *sk, char __user *optval, int optlen)
-{
- if (optlen > sizeof(struct icmp_filter))
- optlen = sizeof(struct icmp_filter);
- if (copy_from_user(&raw4_sk(sk)->filter, optval, optlen))
- return -EFAULT;
- return 0;
-}
-
-static int raw_geticmpfilter(struct sock *sk, char __user *optval, int __user *optlen)
-{
- int len, ret = -EFAULT;
-
- if (get_user(len, optlen))
- goto out;
- ret = -EINVAL;
- if (len < 0)
- goto out;
- if (len > sizeof(struct icmp_filter))
- len = sizeof(struct icmp_filter);
- ret = -EFAULT;
- if (put_user(len, optlen) ||
- copy_to_user(optval, &raw4_sk(sk)->filter, len))
- goto out;
- ret = 0;
-out: return ret;
-}
-
-static int raw_setsockopt(struct sock *sk, int level, int optname,
- char __user *optval, int optlen)
-{
- if (level != SOL_RAW)
- return ip_setsockopt(sk, level, optname, optval, optlen);
-
- if (optname == ICMP_FILTER) {
- if (inet_sk(sk)->num != IPPROTO_ICMP)
- return -EOPNOTSUPP;
- else
- return raw_seticmpfilter(sk, optval, optlen);
- }
- return -ENOPROTOOPT;
-}
-
-static int raw_getsockopt(struct sock *sk, int level, int optname,
- char __user *optval, int __user *optlen)
-{
- if (level != SOL_RAW)
- return ip_getsockopt(sk, level, optname, optval, optlen);
-
- if (optname == ICMP_FILTER) {
- if (inet_sk(sk)->num != IPPROTO_ICMP)
- return -EOPNOTSUPP;
- else
- return raw_geticmpfilter(sk, optval, optlen);
- }
- return -ENOPROTOOPT;
-}
-
-static int raw_ioctl(struct sock *sk, int cmd, unsigned long arg)
-{
- switch (cmd) {
- case SIOCOUTQ: {
- int amount = atomic_read(&sk->sk_wmem_alloc);
- return put_user(amount, (int __user *)arg);
- }
- case SIOCINQ: {
- struct sk_buff *skb;
- int amount = 0;
-
- spin_lock_irq(&sk->sk_receive_queue.lock);
- skb = skb_peek(&sk->sk_receive_queue);
- if (skb != NULL)
- amount = skb->len;
- spin_unlock_irq(&sk->sk_receive_queue.lock);
- return put_user(amount, (int __user *)arg);
- }
-
- default:
-#ifdef CONFIG_IP_MROUTE
- return ipmr_ioctl(sk, cmd, (void __user *)arg);
-#else
- return -ENOIOCTLCMD;
-#endif
- }
-}
-
-struct proto raw_prot = {
- .name = "RAW",
- .owner = THIS_MODULE,
- .close = raw_close,
- .connect = ip4_datagram_connect,
- .disconnect = udp_disconnect,
- .ioctl = raw_ioctl,
- .init = raw_init,
- .setsockopt = raw_setsockopt,
- .getsockopt = raw_getsockopt,
- .sendmsg = raw_sendmsg,
- .recvmsg = raw_recvmsg,
- .bind = raw_bind,
- .backlog_rcv = raw_rcv_skb,
- .hash = raw_v4_hash,
- .unhash = raw_v4_unhash,
- .slab_obj_size = sizeof(struct raw_sock),
-};
-
-#ifdef CONFIG_PROC_FS
-struct raw_iter_state {
- int bucket;
-};
-
-#define raw_seq_private(seq) ((struct raw_iter_state *)(seq)->private)
-
-static struct sock *raw_get_first(struct seq_file *seq)
-{
- struct sock *sk;
- struct raw_iter_state* state = raw_seq_private(seq);
-
- for (state->bucket = 0; state->bucket < RAWV4_HTABLE_SIZE; ++state->bucket) {
- struct hlist_node *node;
-
- sk_for_each(sk, node, &raw_v4_htable[state->bucket])
- if (sk->sk_family == PF_INET)
- goto found;
- }
- sk = NULL;
-found:
- return sk;
-}
-
-static struct sock *raw_get_next(struct seq_file *seq, struct sock *sk)
-{
- struct raw_iter_state* state = raw_seq_private(seq);
-
- do {
- sk = sk_next(sk);
-try_again:
- ;
- } while (sk && sk->sk_family != PF_INET);
-
- if (!sk && ++state->bucket < RAWV4_HTABLE_SIZE) {
- sk = sk_head(&raw_v4_htable[state->bucket]);
- goto try_again;
- }
- return sk;
-}
-
-static struct sock *raw_get_idx(struct seq_file *seq, loff_t pos)
-{
- struct sock *sk = raw_get_first(seq);
-
- if (sk)
- while (pos && (sk = raw_get_next(seq, sk)) != NULL)
- --pos;
- return pos ? NULL : sk;
-}
-
-static void *raw_seq_start(struct seq_file *seq, loff_t *pos)
-{
- read_lock(&raw_v4_lock);
- return *pos ? raw_get_idx(seq, *pos - 1) : SEQ_START_TOKEN;
-}
-
-static void *raw_seq_next(struct seq_file *seq, void *v, loff_t *pos)
-{
- struct sock *sk;
-
- if (v == SEQ_START_TOKEN)
- sk = raw_get_first(seq);
- else
- sk = raw_get_next(seq, v);
- ++*pos;
- return sk;
-}
-
-static void raw_seq_stop(struct seq_file *seq, void *v)
-{
- read_unlock(&raw_v4_lock);
-}
-
-static __inline__ char *get_raw_sock(struct sock *sp, char *tmpbuf, int i)
-{
- struct inet_opt *inet = inet_sk(sp);
- unsigned int dest = inet->daddr,
- src = inet->rcv_saddr;
- __u16 destp = 0,
- srcp = inet->num;
-
- sprintf(tmpbuf, "%4d: %08X:%04X %08X:%04X"
- " %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p",
- i, src, srcp, dest, destp, sp->sk_state,
- atomic_read(&sp->sk_wmem_alloc),
- atomic_read(&sp->sk_rmem_alloc),
- 0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp),
- atomic_read(&sp->sk_refcnt), sp);
- return tmpbuf;
-}
-
-static int raw_seq_show(struct seq_file *seq, void *v)
-{
- char tmpbuf[129];
-
- if (v == SEQ_START_TOKEN)
- seq_printf(seq, "%-127s\n",
- " sl local_address rem_address st tx_queue "
- "rx_queue tr tm->when retrnsmt uid timeout "
- "inode");
- else {
- struct raw_iter_state *state = raw_seq_private(seq);
-
- seq_printf(seq, "%-127s\n",
- get_raw_sock(v, tmpbuf, state->bucket));
- }
- return 0;
-}
-
-static struct seq_operations raw_seq_ops = {
- .start = raw_seq_start,
- .next = raw_seq_next,
- .stop = raw_seq_stop,
- .show = raw_seq_show,
-};
-
-static int raw_seq_open(struct inode *inode, struct file *file)
-{
- struct seq_file *seq;
- int rc = -ENOMEM;
- struct raw_iter_state *s = kmalloc(sizeof(*s), GFP_KERNEL);
-
- if (!s)
- goto out;
- rc = seq_open(file, &raw_seq_ops);
- if (rc)
- goto out_kfree;
-
- seq = file->private_data;
- seq->private = s;
- memset(s, 0, sizeof(*s));
-out:
- return rc;
-out_kfree:
- kfree(s);
- goto out;
-}
-
-static struct file_operations raw_seq_fops = {
- .owner = THIS_MODULE,
- .open = raw_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_private,
-};
-
-int __init raw_proc_init(void)
-{
- if (!proc_net_fops_create("raw", S_IRUGO, &raw_seq_fops))
- return -ENOMEM;
- return 0;
-}
-
-void __init raw_proc_exit(void)
-{
- proc_net_remove("raw");
-}
-#endif /* CONFIG_PROC_FS */
projects / xen.git / commitdiff