* [PATCH net-next] tcp: ipv6: bind() use stronger condition for bind_conflict
@ 2013-03-05 18:11 Flavio Leitner
2013-03-06 4:54 ` David Miller
0 siblings, 1 reply; 2+ messages in thread
From: Flavio Leitner @ 2013-03-05 18:11 UTC (permalink / raw)
To: netdev; +Cc: Hideaki YOSHIFUJI, Flavio Leitner
We must try harder to get unique (addr, port) pairs when
doing port autoselection for sockets with SO_REUSEADDR
option set.
This is a continuation of commit aacd9289af8b82f5fb01bcdd53d0e3406d1333c7
for IPv6.
Signed-off-by: Flavio Leitner <fbl@redhat.com>
---
net/ipv6/inet6_connection_sock.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
index b386a2c..f7f49bf 100644
--- a/net/ipv6/inet6_connection_sock.c
+++ b/net/ipv6/inet6_connection_sock.c
@@ -55,6 +55,10 @@ int inet6_csk_bind_conflict(const struct sock *sk,
if (ipv6_rcv_saddr_equal(sk, sk2))
break;
}
+ if (!relax && reuse && sk2->sk_reuse &&
+ sk2->sk_state != TCP_LISTEN &&
+ ipv6_rcv_saddr_equal(sk, sk2))
+ break;
}
}
--
1.8.1.4
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