net: ipv6: fix TCP early demux

IPv6 needs a cookie in dst_check() call.

We need to add rx_dst_cookie and provide a family independent
sk_rx_dst_set(sk, skb) method to properly support IPv6 TCP early demux.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index 379e433e15e0..879db26ec401 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -369,6 +369,7 @@ struct ipv6_pinfo {
         __u8                    rcv_tclass;
 
         __u32                   dst_cookie;
+        __u32                   rx_dst_cookie;
 
         struct ipv6_mc_socklist __rcu *ipv6_mc_list;
         struct ipv6_ac_socklist *ipv6_ac_list;