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Timo Teräs d11a4dc18b ipv4: check rt_genid in dst_check 
Xfrm_dst keeps a reference to ipv4 rtable entries on each
cached bundle. The only way to renew xfrm_dst when the underlying
route has changed, is to implement dst_check for this. This is
what ipv6 side does too.

The problems started after 87c1e12b5e
("ipsec: Fix bogus bundle flowi") which fixed a bug causing xfrm_dst
to not get reused, until that all lookups always generated new
xfrm_dst with new route reference and path mtu worked. But after the
fix, the old routes started to get reused even after they were expired
causing pmtu to break (well it would occationally work if the rtable
gc had run recently and marked the route obsolete causing dst_check to
get called).

Signed-off-by: Timo Teras <timo.teras@iki.fi>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2010-03-19 21:00:41 -07:00
..
9p 9p: Change the name of new protocol from 9p2010.L to 9p2000.L 2010-03-13 08:57:29 -06:00
802 sysctl net: Remove unused binary sysctl code 2009-11-12 02:05:06 -08:00
8021q net: Potential null skb->dev dereference 2010-03-18 21:16:45 -07:00
appletalk net: appletalk: use seq_hlist_foo() helpers 2010-02-10 11:12:09 -08:00
atm net: atm: use seq_list_foo() helpers 2010-02-10 12:31:10 -08:00
ax25 net: ax25: use seq_hlist_foo() helpers 2010-02-10 11:12:09 -08:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2010-03-13 14:50:18 -08:00
bridge bridge: Make first arg to deliver_clone const. 2010-03-16 14:37:47 -07:00
can can: deny filterlist access on non-CAN interfaces 2010-02-02 07:21:34 -08:00
core net: Potential null skb->dev dereference 2010-03-18 21:16:45 -07:00
dcb const: struct nla_policy 2010-02-18 14:30:18 -08:00
dccp net-2.6 [Bug-Fix][dccp]: fix oops caused after failed initialisation 2010-03-15 16:00:50 -07:00
decnet net: Add checking to rcu_dereference() primitives 2010-02-25 09:41:03 +01:00
dsa
…
econet net: use net_eq to compare nets 2009-11-25 15:14:13 -08:00
ethernet llc: use dev_hard_header 2009-12-26 20:38:23 -08:00
ieee802154 net: use net_eq to compare nets 2009-11-25 15:14:13 -08:00
ipv4 ipv4: check rt_genid in dst_check 2010-03-19 21:00:41 -07:00
ipv6 ipv6: Send netlink notification when DAD fails 2010-03-13 12:23:29 -08:00
ipx net: ipx: use seq_list_foo() helpers 2010-02-10 12:31:10 -08:00
irda const: struct nla_policy 2010-02-18 14:30:18 -08:00
iucv const: constify remaining dev_pm_ops 2009-12-15 08:53:25 -08:00
key xfrm: SP lookups signature with mark 2010-02-22 16:21:12 -08:00
lapb
…
llc net: backlog functions rename 2010-03-05 13:34:03 -08:00
mac80211 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2010-03-13 14:50:18 -08:00
netfilter Merge branch 'for-next' into for-linus 2010-03-08 16:55:37 +01:00
netlabel net: remove INIT_RCU_HEAD() usage 2010-02-17 00:03:27 -08:00
netlink netlink: Adding inode field to /proc/net/netlink 2010-02-28 01:29:49 -08:00
netrom net: netrom: use seq_hlist_foo() helpers 2010-02-10 11:12:08 -08:00
packet af_packet: move strict addr_len check right before dev_[mc/unicast]_[add/del] 2010-03-03 01:04:38 -08:00
phonet phonet: use for_each_set_bit() 2010-03-15 16:00:47 -07:00
rds net/rds: remove uses of NIPQUAD, use %pI4 2010-02-03 20:16:48 -08:00
rfkill rfkill: Add support for KEY_RFKILL 2010-03-02 14:28:49 -05:00
rose net: rose: use seq_hlist_foo() helpers 2010-02-10 11:12:08 -08:00
rxrpc net: use net_eq to compare nets 2009-11-25 15:14:13 -08:00
sched Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-02-09 11:44:44 -08:00
sctp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2010-03-13 14:50:18 -08:00
sunrpc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2010-03-13 14:50:18 -08:00
tipc tipc: fix lockdep warning on address assignment 2010-03-16 14:15:45 -07:00
unix AF_UNIX: update locking comment 2010-02-18 14:12:06 -08:00
wanrouter
…
wimax const: struct nla_policy 2010-02-18 14:30:18 -08:00
wireless Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 2010-02-25 23:26:21 -08:00
x25 net: backlog functions rename 2010-03-05 13:34:03 -08:00
xfrm ipsec: Fix bogus bundle flowi 2010-03-03 01:04:37 -08:00
Kconfig
…
Makefile
…
TUNABLE
…
compat.c net: use compat helper functions in compat_sys_recvmmsg 2009-12-11 15:07:57 -08:00
nonet.c
…
socket.c fs: no games with DCACHE_UNHASHED 2009-12-17 10:51:40 -05:00
sysctl_net.c net: spread __net_init, __net_exit 2010-01-17 19:16:02 -08:00