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ipv6: add flowlabel_consistency sysctl

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With the introduction of IPV6_FL_F_REFLECT, there is no guarantee of
flow label unicity. This patch introduces a new sysctl to protect the old
behaviour, enable by default.

Changelog of V3:
 * rename ip6_flowlabel_consistency to flowlabel_consistency
 * use net_info_ratelimited()
 * checkpatch cleanups

Signed-off-by: Florent Fourcot <florent.fourcot@enst-bretagne.fr>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florent Fourcot
2014-01-17 17:15:05 +01:00
committed by David S. Miller
parent 46e5f40176
commit 6444f72b4b
5 changed files with 25 additions and 0 deletions
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include/net/netns/ipv6.h
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@@ -27,6 +27,7 @@ struct netns_sysctl_ipv6 {
int ip6_rt_gc_elasticity;
int ip6_rt_mtu_expires;
int ip6_rt_min_advmss;
int flowlabel_consistency;
int icmpv6_time;
int anycast_src_echo_reply;
};