Eric Dumazet dfd25ffffc tcp: fix syncookie regression ... commit ea4fc0d619 (ipv4: Don't use rt->rt_{src,dst} in ip_queue_xmit()) added a serious regression on synflood handling. Simon Kirby discovered a successful connection was delayed by 20 seconds before being responsive. In my tests, I discovered that xmit frames were lost, and needed ~4 retransmits and a socket dst rebuild before being really sent. In case of syncookie initiated connection, we use a different path to initialize the socket dst, and inet->cork.fl.u.ip4 is left cleared. As ip_queue_xmit() now depends on inet flow being setup, fix this by copying the temp flowi4 we use in cookie_v4_check(). Reported-by: Simon Kirby <sim@netnation.com> Bisected-by: Simon Kirby <sim@netnation.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2012-03-11 15:52:12 -07:00
..
netfilter	Merge branch 'for-linus' of git://selinuxproject.org/~jmorris/linux-security	2012-01-14 18:36:33 -08:00
af_inet.c	per-netns ipv4 sysctl_tcp_mem	2011-12-12 19:04:11 -05:00
ah4.c
arp.c	net: Don't proxy arp respond if iif == rt->dst.dev if private VLAN is disabled	2012-02-10 15:13:36 -05:00
cipso_ipv4.c
datagram.c
devinet.c	net: reintroduce missing rcu_assign_pointer() calls	2012-01-12 12:26:56 -08:00
esp4.c
fib_frontend.c
fib_lookup.h
fib_rules.c	net: ipv4: export fib_lookup and fib_table_lookup	2011-12-04 22:43:33 +01:00
fib_semantics.c
fib_trie.c	net: reintroduce missing rcu_assign_pointer() calls	2012-01-12 12:26:56 -08:00
gre.c
icmp.c
igmp.c	net: reintroduce missing rcu_assign_pointer() calls	2012-01-12 12:26:56 -08:00
inet_connection_sock.c	tcp: bind() optimize port allocation	2012-01-25 21:50:43 -05:00
inet_diag.c	inet_diag: Rename inet_diag_req_compat into inet_diag_req	2012-01-11 12:56:06 -08:00
inet_fragment.c
inet_hashtables.c
inet_lro.c
inet_timewait_sock.c
inetpeer.c	route: Remove redirect_genid	2012-03-08 00:30:32 -08:00
ip_forward.c
ip_fragment.c	treewide: Fix typos in various parts of the kernel, and fix some comments.	2011-12-02 14:57:31 +01:00
ip_gre.c	gre: fix spelling in comments	2012-02-24 17:41:11 -05:00
ip_input.c
ip_options.c	ipv4: Fix wrong order of ip_rt_get_source() and update iph->daddr.	2012-02-10 15:12:12 -05:00
ip_output.c	net: Rename dst_get_neighbour{, _raw} to dst_get_neighbour_noref{, _raw}.	2011-12-05 15:20:19 -05:00
ip_sockglue.c	net: use IS_ENABLED(CONFIG_IPV6)	2011-12-11 18:25:16 -05:00
ipcomp.c
ipconfig.c	net: fix some sparse errors	2012-01-17 10:31:12 -05:00
ipip.c	net: reintroduce missing rcu_assign_pointer() calls	2012-01-12 12:26:56 -08:00
ipmr.c	net: reintroduce missing rcu_assign_pointer() calls	2012-01-12 12:26:56 -08:00
Kconfig	net: Fix build regression when INET_UDP_DIAG=y and IPV6=m	2012-02-07 13:35:28 -05:00
Makefile	tcp memory pressure controls	2011-12-12 19:04:10 -05:00
netfilter.c
ping.c	ipv4: ping: Fix recvmsg MSG_OOB error handling.	2012-02-21 17:59:19 -05:00
proc.c	tcp: detect loss above high_seq in recovery	2012-01-22 15:08:44 -05:00
protocol.c
raw.c
route.c	route: Remove redirect_genid	2012-03-08 00:30:32 -08:00
syncookies.c	tcp: fix syncookie regression	2012-03-11 15:52:12 -07:00
sysctl_net_ipv4.c	tcp: properly initialize tcp memory limits	2012-02-02 14:34:41 -05:00
tcp_bic.c	tcp: fix undo after RTO for BIC	2012-01-20 14:17:26 -05:00
tcp_cong.c
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_highspeed.c
tcp_htcp.c
tcp_hybla.c
tcp_illinois.c
tcp_input.c	tcp: fix tcp_shift_skb_data() to not shift SACKed data below snd_una	2012-03-06 14:43:49 -05:00
tcp_ipv4.c	tcp: fix syncookie regression	2012-03-11 15:52:12 -07:00
tcp_lp.c
tcp_memcontrol.c	net: decrement memcg jump label when limit, not usage, is changed	2012-01-12 12:27:59 -08:00
tcp_minisocks.c	net: use IS_ENABLED(CONFIG_IPV6)	2011-12-11 18:25:16 -05:00
tcp_output.c	tcp: fix tcp_trim_head() to adjust segment count with skb MSS	2012-01-30 12:42:58 -05:00
tcp_probe.c
tcp_scalable.c
tcp_timer.c	net: Disambiguate kernel message	2012-02-01 14:41:50 -05:00
tcp_vegas.c
tcp_vegas.h
tcp_veno.c
tcp_westwood.c
tcp_yeah.c
tcp.c	vfs: fix panic in __d_lookup() with high dentry hashtable counts	2012-02-13 20:45:38 -05:00
tunnel4.c	net: use IS_ENABLED(CONFIG_IPV6)	2011-12-11 18:25:16 -05:00
udp_diag.c	net: kill duplicate included header	2012-01-17 10:31:12 -05:00
udp_impl.h
udp.c	udp: Export code sk lookup routines	2011-12-09 14:14:08 -05:00
udplite.c
xfrm4_input.c
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	ipsec: be careful of non existing mac headers	2012-02-23 16:50:45 -05:00
xfrm4_output.c
xfrm4_policy.c
xfrm4_state.c
xfrm4_tunnel.c	net: use IS_ENABLED(CONFIG_IPV6)	2011-12-11 18:25:16 -05:00