[LINUX] Kernel should not send out IPv6 autoconfig multicast

packets if the interface is not marked as multicast-capable.
Signed-off-by: Gerd Hoffmann <kraxel@suse.de>

diff --git a/patches/linux-2.6.16.13/ipv6-no-autoconf.patch b/patches/linux-2.6.16.13/ipv6-no-autoconf.patch
new file mode 100644 (file)
index 0000000..7d2fd4d
--- /dev/null
+++ b/patches/linux-2.6.16.13/ipv6-no-autoconf.patch
@@ -0,0 +1,23 @@
+ net/ipv6/addrconf.c |    2 ++
+ 1 files changed, 2 insertions(+)
+
+Index: build/net/ipv6/addrconf.c
+===================================================================
+--- build.orig/net/ipv6/addrconf.c
++++ build/net/ipv6/addrconf.c
+@@ -2462,6 +2462,7 @@ static void addrconf_dad_start(struct in
+       spin_lock_bh(&ifp->lock);
+ 
+       if (dev->flags&(IFF_NOARP|IFF_LOOPBACK) ||
++          !(dev->flags&IFF_MULTICAST) ||
+           !(ifp->flags&IFA_F_TENTATIVE)) {
+               ifp->flags &= ~IFA_F_TENTATIVE;
+               spin_unlock_bh(&ifp->lock);
+@@ -2546,6 +2547,7 @@ static void addrconf_dad_completed(struc
+       if (ifp->idev->cnf.forwarding == 0 &&
+           ifp->idev->cnf.rtr_solicits > 0 &&
+           (dev->flags&IFF_LOOPBACK) == 0 &&
++          (dev->flags & IFF_MULTICAST) &&
+           (ipv6_addr_type(&ifp->addr) & IPV6_ADDR_LINKLOCAL)) {
+               struct in6_addr all_routers;
+