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>

1 files changed, 0 insertions, 1 deletions

diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index fc8995a702a6..e073517b2cc7 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1206,7 +1206,6 @@ static void tcp_v4_init_req(struct request_sock *req, struct sock *sk_listener,
         sk_daddr_set(req_to_sk(req), ip_hdr(skb)->saddr);
         ireq->no_srccheck = inet_sk(sk_listener)->transparent;
         ireq->opt = tcp_v4_save_options(skb);
-        ireq->ireq_family = AF_INET;
 }
 
 static struct dst_entry *tcp_v4_route_req(struct sock *sk, struct flowi *fl,