commit 0144a81cccf7532bead90f0542f517bd028d3b3c
author Eric Dumazet <edumazet@google.com> Tue Mar 24 21:45:56 2015 -0700
committer David S. Miller <davem@davemloft.net> Wed Mar 25 00:57:48 2015 -0400
tree ee5dd135f364e5111388180183f9a4d4918b3ecb
parent d631b94e7a15277858ec5f88d674d93080506999

tcp: fix ipv4 mapped request socks

ss should display ipv4 mapped request sockets like this :

tcp    SYN-RECV   0      0  ::ffff:192.168.0.1:8080   ::ffff:192.0.2.1:35261

and not like this :

tcp    SYN-RECV   0      0  192.168.0.1:8080   192.0.2.1:35261

We should init ireq->ireq_family based on listener sk_family,
not the actual protocol carried by SYN packet.

This means we can set ireq_family in inet_reqsk_alloc()

Fixes: 3f66b083a5b7 ("inet: introduce ireq_family")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv4/tcp_input.c

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 95caea7..023196f 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -5980,7 +5980,7 @@
 		atomic64_set(&ireq->ir_cookie, 0);
 		ireq->ireq_state = TCP_NEW_SYN_RECV;
 		write_pnet(&ireq->ireq_net, sock_net(sk_listener));
-
+		ireq->ireq_family = sk_listener->sk_family;
 	}
 
 	return req;