Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf

Pablo Neira Ayuso says:

====================
The following patchset contains Netfilter fixes for your net tree, they are:

1) Fix a leak in IPVS, the sysctl table is not released accordingly when
   destroying a netns, patch from Tommi Rantala.

2) Fix a build error when TPROXY and socket are built-in but IPv6 defrag is
   compiled as module, from Florian Westphal.

3) Fix TCP tracket wrt. RFC5961 challenge ACK when in LAST_ACK state, patch
   from Jesper Dangaard Brouer.

4) Fix a bogus WARN_ON() in nf_tables when deleting a set element that stores
   a map, from Mirek Kratochvil.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/uapi/linux/netfilter/nf_conntrack_tcp.h b/include/uapi/linux/netfilter/nf_conntrack_tcp.h
index 9993a421201c..ef9f80f0f529 100644
--- a/include/uapi/linux/netfilter/nf_conntrack_tcp.h
+++ b/include/uapi/linux/netfilter/nf_conntrack_tcp.h
@@ -42,6 +42,9 @@ enum tcp_conntrack {
 /* The field td_maxack has been set */
 #define IP_CT_TCP_FLAG_MAXACK_SET               0x20
 
+/* Marks possibility for expected RFC5961 challenge ACK */
+#define IP_CT_EXP_CHALLENGE_ACK                 0x40
+
 struct nf_ct_tcp_flags {
         __u8 flags;
         __u8 mask;