Alexey Kuznetsov 4c67525849 tcp: resets are misrouted ... After commit e2446eaa ("tcp_v4_send_reset: binding oif to iif in no sock case").. tcp resets are always lost, when routing is asymmetric. Yes, backing out that patch will result in misrouting of resets for dead connections which used interface binding when were alive, but we actually cannot do anything here. What's died that's died and correct handling normal unbound connections is obviously a priority. Comment to comment: > This has few benefits: > 1. tcp_v6_send_reset already did that. It was done to route resets for IPv6 link local addresses. It was a mistake to do so for global addresses. The patch fixes this as well. Actually, the problem appears to be even more serious than guaranteed loss of resets. As reported by Sergey Soloviev <sol@eqv.ru>, those misrouted resets create a lot of arp traffic and huge amount of unresolved arp entires putting down to knees NAT firewalls which use asymmetric routing. Signed-off-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>		2012-10-12 13:52:40 -04:00
..
netfilter	netfilter: combine ipt_REDIRECT and ip6t_REDIRECT	2012-09-21 12:12:05 +02:00
af_inet.c	ipv4: Don't add TCP-code in inet_sock_destruct	2012-09-20 17:12:27 -04:00
ah4.c	ipv4: Add redirect support to all protocol icmp error handlers.	2012-07-11 21:27:49 -07:00
arp.c	ipv4/route: arg delay is useless in rt_cache_flush()	2012-09-18 15:44:34 -04:00
cipso_ipv4.c	cipso: don't follow a NULL pointer when setsockopt() is called	2012-07-18 09:01:12 -07:00
datagram.c
devinet.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-09-28 14:40:49 -04:00
esp4.c	ipv4: Add redirect support to all protocol icmp error handlers.	2012-07-11 21:27:49 -07:00
fib_frontend.c	ipv4: fix sending of redirects	2012-10-08 17:42:35 -04:00
fib_lookup.h
fib_rules.c	sections: fix section conflicts in net	2012-10-06 03:04:45 +09:00
fib_semantics.c	ipv4: make sure nh_pcpu_rth_output is always allocated	2012-10-08 17:42:35 -04:00
fib_trie.c	ipv4/route: arg delay is useless in rt_cache_flush()	2012-09-18 15:44:34 -04:00
gre.c	net: ipv4: Standardize prefixes for message logging	2012-03-12 17:05:21 -07:00
icmp.c	ipv4: Prepare for change of rt->rt_iif encoding.	2012-07-23 16:36:26 -07:00
igmp.c	igmp: export symbol ip_mc_leave_group	2012-10-01 18:39:44 -04:00
inet_connection_sock.c	ipv4: introduce rt_uses_gateway	2012-10-08 17:42:36 -04:00
inet_diag.c	netlink: Rename pid to portid to avoid confusion	2012-09-10 15:30:41 -04:00
inet_fragment.c	ipv6: unify fragment thresh handling code	2012-09-19 17:23:28 -04:00
inet_hashtables.c	ipv4: fix checkpatch errors	2012-04-15 12:37:19 -04:00
inet_lro.c	net: add skb frag size accessors	2011-10-19 03:10:46 -04:00
inet_timewait_sock.c	net: ipv4 and ipv6: Convert printk(KERN_DEBUG to pr_debug	2012-05-16 01:01:03 -04:00
inetpeer.c	Merge branch 'for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq	2012-10-02 09:54:49 -07:00
ip_forward.c	ipv4: introduce rt_uses_gateway	2012-10-08 17:42:36 -04:00
ip_fragment.c	ipv6: unify fragment thresh handling code	2012-09-19 17:23:28 -04:00
ip_gre.c	gre: fix sparse warning	2012-10-01 17:35:31 -04:00
ip_input.c	net: TCP early demux cleanup	2012-07-30 14:53:21 -07:00
ip_options.c	ipv4: optimize fib_compute_spec_dst call in ip_options_echo	2012-07-19 08:30:49 -07:00
ip_output.c	ipv4: introduce rt_uses_gateway	2012-10-08 17:42:36 -04:00
ip_sockglue.c	ipv4: Prepare for change of rt->rt_iif encoding.	2012-07-23 16:36:26 -07:00
ip_vti.c	xfrm: remove extranous rcu_read_lock	2012-09-27 18:12:37 -04:00
ipcomp.c	ipv4: Add redirect support to all protocol icmp error handlers.	2012-07-11 21:27:49 -07:00
ipconfig.c	ipconfig: fix trivial build error	2012-09-25 13:22:30 -04:00
ipip.c	tunnel: drop packet if ECN present with not-ECT	2012-09-27 18:12:37 -04:00
ipmr.c	sections: fix section conflicts in net	2012-10-06 03:04:45 +09:00
Kconfig	net/ipv4: VTI support new module for ip_vti.	2012-07-18 09:36:12 -07:00
Makefile	memcg: rename config variables	2012-07-31 18:42:43 -07:00
netfilter.c	netfilter: properly annotate ipv4_netfilter_{init,fini}()	2012-09-03 13:56:04 +02:00
ping.c	userns: Use kgids for sysctl_ping_group_range	2012-08-14 21:49:10 -07:00
proc.c	tcp: TCP Fast Open Server - header & support functions	2012-08-31 20:02:18 -04:00
protocol.c	inet: Sanitize inet{,6} protocol demux.	2012-06-19 18:56:21 -07:00
raw.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2012-10-02 11:11:09 -07:00
route.c	ipv4: fix route mark sparse warning	2012-10-10 22:54:59 -04:00
syncookies.c	tcp: TCP Fast Open Server - support TFO listeners	2012-08-31 20:02:19 -04:00
sysctl_net_ipv4.c	tcp: sysctl interface leaks 16 bytes of kernel memory	2012-10-11 15:12:33 -04:00
tcp.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-09-28 14:40:49 -04:00
tcp_bic.c	tcp: fix undo after RTO for BIC	2012-01-20 14:17:26 -05:00
tcp_cong.c	tcp: Apply device TSO segment limit earlier	2012-08-02 00:19:17 -07:00
tcp_cubic.c	tcp: fix undo after RTO for CUBIC	2012-01-20 14:17:26 -05:00
tcp_diag.c	inet_diag: Rename inet_diag_req into inet_diag_req_v2	2012-01-11 12:56:06 -08:00
tcp_fastopen.c	tcp: TCP Fast Open Server - header & support functions	2012-08-31 20:02:18 -04:00
tcp_highspeed.c
tcp_htcp.c
tcp_hybla.c	tcp: bool conversions	2012-05-17 14:59:59 -04:00
tcp_illinois.c
tcp_input.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-09-28 14:40:49 -04:00
tcp_ipv4.c	tcp: resets are misrouted	2012-10-12 13:52:40 -04:00
tcp_lp.c
tcp_memcontrol.c	memcg: decrement static keys at real destroy time	2012-05-29 16:22:28 -07:00
tcp_metrics.c	netlink: Rename pid to portid to avoid confusion	2012-09-10 15:30:41 -04:00
tcp_minisocks.c	tcp: TCP Fast Open Server - note timestamps and retransmits for SYNACK RTT	2012-09-22 15:47:10 -04:00
tcp_output.c	tcp: use PRR to reduce cwin in CWR state	2012-09-03 14:34:02 -04:00
tcp_probe.c	net: cleanup unsigned to unsigned int	2012-04-15 12:44:40 -04:00
tcp_scalable.c
tcp_timer.c	tcp: TCP Fast Open Server - support TFO listeners	2012-08-31 20:02:19 -04:00
tcp_vegas.c
tcp_vegas.h
tcp_veno.c
tcp_westwood.c
tcp_yeah.c
tunnel4.c	net: Convert printks to pr_<level>	2012-03-11 23:42:51 -07:00
udp.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2012-10-02 11:11:09 -07:00
udp_diag.c	netlink: Rename pid to portid to avoid confusion	2012-09-10 15:30:41 -04:00
udp_impl.h	ipv4: fix checkpatch errors	2012-04-15 12:37:19 -04:00
udplite.c	net: ipv4: Standardize prefixes for message logging	2012-03-12 17:05:21 -07:00
xfrm4_input.c	ipv4: Fix input route performance regression.	2012-07-26 15:50:39 -07:00
xfrm4_mode_beet.c	ipsec: be careful of non existing mac headers	2012-02-23 16:50:45 -05:00
xfrm4_mode_transport.c
xfrm4_mode_tunnel.c	net/ipv4: VTI support rx-path hook in xfrm4_mode_tunnel.	2012-07-18 09:36:12 -07:00
xfrm4_output.c	xfrm4: Don't call icmp_send on local error	2011-07-01 17:33:19 -07:00
xfrm4_policy.c	ipv4: introduce rt_uses_gateway	2012-10-08 17:42:36 -04:00
xfrm4_state.c	net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules	2011-10-31 19:30:30 -04:00
xfrm4_tunnel.c	net: ipv4: Standardize prefixes for message logging	2012-03-12 17:05:21 -07:00