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linux/net/ipv6
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Eric Dumazet bd14b1b2e2 tcp: be more strict before accepting ECN negociation 
It appears some networks play bad games with the two bits reserved for
ECN. This can trigger false congestion notifications and very slow
transferts.

Since RFC 3168 (6.1.1) forbids SYN packets to carry CT bits, we can
disable TCP ECN negociation if it happens we receive mangled CT bits in
the SYN packet.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Perry Lorier <perryl@google.com>
Cc: Matt Mathis <mattmathis@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Cc: Wilmer van der Gaast <wilmer@google.com>
Cc: Ankur Jain <jankur@google.com>
Cc: Tom Herbert <therbert@google.com>
Cc: Dave Täht <dave.taht@bufferbloat.net>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-04 12:05:27 -04:00
..
netfilter net: Convert all sysctl registrations to register_net_sysctl 2012-04-20 21:22:30 -04:00
addrconf_core.c net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
addrconf.c net ipv6: Convert addrconf to use register_net_sysctl 2012-04-20 21:22:29 -04:00
addrlabel.c rtnetlink: Compute and store minimum ifinfo dump size 2011-06-09 20:38:07 -07:00
af_inet6.c sock: Introduce named constants for sk_reuse 2012-04-21 15:52:25 -04:00
ah6.c net: remove ipv6_addr_copy() 2011-11-22 16:43:32 -05:00
anycast.c ipv6: Remove never used function inet6_ac_check(). 2012-02-01 16:14:17 -05:00
datagram.c ipv6: Export ipv6 functions for use by other protocols 2012-05-01 09:30:55 -04:00
esp6.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2011-05-05 14:59:02 -07:00
exthdrs_core.c net/ipv6/exthdrs_core.c: Checkpatch cleanups 2012-04-02 04:33:46 -04:00
exthdrs.c ipv6: Export ipv6 functions for use by other protocols 2012-05-01 09:30:55 -04:00
fib6_rules.c net/ipv6/fib6_rules.c: Checkpatch cleanup 2012-04-02 04:33:46 -04:00
icmp.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-04-10 14:30:45 -04:00
inet6_connection_sock.c tcp: bind() use stronger condition for bind_conflict 2012-04-14 15:28:55 -04:00
inet6_hashtables.c net: Compute protocol sequence numbers and fragment IDs using MD5. 2011-08-06 18:33:19 -07:00
ip6_fib.c ipv6: fix problem with expired dst cache 2012-04-13 12:58:29 -04:00
ip6_flowlabel.c ipv6: Export ipv6 functions for use by other protocols 2012-05-01 09:30:55 -04:00
ip6_input.c ipv6: Add fragment reporting to ipv6_skip_exthdr(). 2011-12-03 09:35:10 -08:00
ip6_output.c ipv6: Export ipv6 functions for use by other protocols 2012-05-01 09:30:55 -04:00
ip6_tunnel.c ip6_tunnel: dont drop packet but consume it 2012-04-19 14:23:55 -04:00
ip6mr.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-04-10 14:30:45 -04:00
ipcomp6.c inet: constify ip headers and in6_addr 2011-04-22 11:04:14 -07:00
ipv6_sockglue.c net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
Kconfig ipv6: ip6mr: support multiple tables 2010-05-11 14:40:55 +02:00
Makefile
mcast.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-04-10 14:30:45 -04:00
mip6.c net: remove ipv6_addr_copy() 2011-11-22 16:43:32 -05:00
ndisc.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-04-15 13:19:04 -04:00
netfilter.c Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2011-11-06 19:44:47 -08:00
proc.c ipv6: fix per device IP snmp counters 2012-01-17 23:56:18 -05:00
protocol.c net: add __rcu annotations to protocol 2010-10-27 11:37:31 -07:00
raw.c ipv6: Implement IPV6_UNICAST_IF socket option. 2012-02-08 15:52:45 -05:00
reassembly.c ipv6: call consume_skb() in frag/reassembly 2012-04-25 20:39:46 -04:00
route.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-04-15 13:19:04 -04:00
sit.c tunnel: implement 64 bits statistics 2012-04-14 14:47:05 -04:00
syncookies.c net: remove ipv6_addr_copy() 2011-11-22 16:43:32 -05:00
sysctl_net_ipv6.c net: Delete all remaining instances of ctl_path 2012-04-20 21:22:30 -04:00
tcp_ipv6.c tcp: be more strict before accepting ECN negociation 2012-05-04 12:05:27 -04:00
tunnel6.c tunnels: add _rcu annotations 2010-10-25 13:09:45 -07:00
udp_impl.h
udp.c net/ipv6/udp: UDP encapsulation: introduce encap_rcv hook into IPv6 2012-04-28 22:21:51 -04:00
udplite.c Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2011-11-06 19:44:47 -08:00
xfrm6_input.c netfilter: ipv6: use NFPROTO values for NF_HOOK invocation 2010-03-25 16:00:49 +01:00
xfrm6_mode_beet.c ipsec: be careful of non existing mac headers 2012-02-23 16:50:45 -05:00
xfrm6_mode_ro.c
xfrm6_mode_transport.c
xfrm6_mode_tunnel.c ipsec: be careful of non existing mac headers 2012-02-23 16:50:45 -05:00
xfrm6_output.c xfrm6: remove unneeded NULL check in __xfrm6_output() 2012-02-01 02:52:48 -05:00
xfrm6_policy.c net: Convert all sysctl registrations to register_net_sysctl 2012-04-20 21:22:30 -04:00
xfrm6_state.c net: remove ipv6_addr_copy() 2011-11-22 16:43:32 -05:00
xfrm6_tunnel.c net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00