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authorFlavio Leitner <fbl@redhat.com>2012-01-25 08:34:51 +0000
committerDavid S. Miller <davem@davemloft.net>2012-01-25 21:50:43 -0500
commit2b05ad33e1e624e7f08b8676d270dc7725403b7e (patch)
tree0f180ef1fa0efcea96738315917eaa014c2ac8f0 /net
parent68315801dbf3ab2001679fd2074c9dc5dcf87dfa (diff)
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tcp: bind() fix autoselection to share ports
The current code checks for conflicts when the application requests a specific port. If there is no conflict, then the request is granted. On the other hand, the port autoselection done by the kernel fails when all ports are bound even when there is a port with no conflict available. The fix changes port autoselection to check if there is a conflict and use it if not. Signed-off-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: Marcelo Ricardo Leitner <mleitner@redhat.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv4/inet_connection_sock.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 2e4e244..ecd19b5 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -128,6 +128,11 @@ again:
goto have_snum;
}
}
+ if (!inet_csk(sk)->icsk_af_ops->bind_conflict(sk, tb)) {
+ spin_unlock(&head->lock);
+ snum = rover;
+ goto have_snum;
+ }
goto next;
}
break;