lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

Browse Source 
Conflicts:
	net/ipv4/Kconfig
	net/ipv4/tcp_timer.c
This commit is contained in:
David S. Miller
2010-10-04 11:56:38 -07:00
parent c7d4426a98 51e97a12be
commit 21a180cda0
21 changed files with 124 additions and 59 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
net/ipv6/route.c
View File

@@ -670,7 +670,7 @@ static struct rt6_info *rt6_alloc_cow(struct rt6_info *ort, struct in6_addr *dad
if (net_ratelimit())
printk(KERN_WARNING
"Neighbour table overflow.\n");
"ipv6: Neighbour table overflow.\n");
dst_free(&rt->dst);
return NULL;
}
@@ -1559,14 +1559,13 @@ out:
* i.e. Path MTU discovery
*/
void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr,
struct net_device *dev, u32 pmtu)
static void rt6_do_pmtu_disc(struct in6_addr *daddr, struct in6_addr *saddr,
struct net *net, u32 pmtu, int ifindex)
{
struct rt6_info *rt, *nrt;
struct net *net = dev_net(dev);
int allfrag = 0;
rt = rt6_lookup(net, daddr, saddr, dev->ifindex, 0);
rt = rt6_lookup(net, daddr, saddr, ifindex, 0);
if (rt == NULL)
return;
@@ -1634,6 +1633,27 @@ out:
dst_release(&rt->dst);
}
void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr,
struct net_device *dev, u32 pmtu)
{
struct net *net = dev_net(dev);
/*
* RFC 1981 states that a node "MUST reduce the size of the packets it
* is sending along the path" that caused the Packet Too Big message.
* Since it's not possible in the general case to determine which
* interface was used to send the original packet, we update the MTU
* on the interface that will be used to send future packets. We also
* update the MTU on the interface that received the Packet Too Big in
* case the original packet was forced out that interface with
* SO_BINDTODEVICE or similar. This is the next best thing to the
* correct behaviour, which would be to update the MTU on all
* interfaces.
*/
rt6_do_pmtu_disc(daddr, saddr, net, pmtu, 0);
rt6_do_pmtu_disc(daddr, saddr, net, pmtu, dev->ifindex);
}
/*
* Misc support functions
*/