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d208328765
linux/net/ipv4
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stephen hemminger d208328765 gre: fix handling of key 0 
GRE driver incorrectly uses zero as a flag value. Zero is a perfectly
valid value for key, and the tunnel should match packets with no key only
with tunnels created without key, and vice versa.

This is a slightly visible  change since previously it might be possible to
construct a working tunnel that sent key 0 and received only because
of the key wildcard of zero.  I.e the sender sent key of zero, but tunnel
was defined without key.

Note: using gre key 0 requires iproute2 utilities v3.2 or later.
The original utility code was broken as well.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-27 18:12:37 -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() 2012-09-07 14:44:08 -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 netlink: Rename pid to portid to avoid confusion 2012-09-10 15:30:41 -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 netlink: Rename pid to portid to avoid confusion 2012-09-10 15:30:41 -04:00
fib_lookup.h
fib_rules.c ipv4/route: arg delay is useless in rt_cache_flush() 2012-09-07 14:44:08 -04:00
fib_semantics.c netlink: Rename pid to portid to avoid confusion 2012-09-10 15:30:41 -04:00
fib_trie.c netlink: Rename pid to portid to avoid confusion 2012-09-10 15:30:41 -04:00
gre.c
icmp.c ipv4: Prepare for change of rt->rt_iif encoding. 2012-07-23 16:36:26 -07:00
igmp.c igmp: avoid drop_monitor false positives 2012-09-07 14:17:10 -04:00
inet_connection_sock.c tcp: fix TFO regression 2012-09-06 14:21:10 -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
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 ipv4: Maintain redirect and PMTU info in struct rtable again. 2012-07-10 22:40:14 -07:00
ip_forward.c snmp: fix OutOctets counter to include forwarded datagrams 2012-06-07 14:50:56 -07:00
ip_fragment.c ipv6: unify fragment thresh handling code 2012-09-19 17:23:28 -04:00
ip_gre.c gre: fix handling of key 0 2012-09-27 18:12:37 -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 net: use a per task frag allocator 2012-09-24 16:31:37 -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 net/ipv4/ip_vti.c: Fix __rcu warnings detected by sparse. 2012-07-23 13:00:54 -07:00
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 ipv4: Adjust semantics of rt->rt_gateway. 2012-07-20 13:31:20 -07:00
ipmr.c netlink: Rename pid to portid to avoid confusion 2012-09-10 15:30:41 -04:00
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 net: raw: revert unrelated change 2012-09-25 03:11:13 -04:00
route.c netlink: Rename pid to portid to avoid confusion 2012-09-10 15:30:41 -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: TCP Fast Open Server - header & support functions 2012-08-31 20:02:18 -04:00
tcp_bic.c
tcp_cong.c tcp: Apply device TSO segment limit earlier 2012-08-02 00:19:17 -07:00
tcp_cubic.c
tcp_diag.c
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 tcp: TCP Fast Open Server - record retransmits after 3WHS 2012-09-22 23:15:25 -04:00
tcp_ipv4.c net: use a per task frag allocator 2012-09-24 16:31:37 -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
tcp.c net: use a per task frag allocator 2012-09-24 16:31:37 -04:00
tunnel4.c
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
udp.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-09-15 11:43:53 -04:00
udplite.c
xfrm4_input.c ipv4: Fix input route performance regression. 2012-07-26 15:50:39 -07:00
xfrm4_mode_beet.c
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_policy.c ipv4: Properly purge netdev references on uncached routes. 2012-07-31 15:06:50 -07:00
xfrm4_state.c
xfrm4_tunnel.c