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SCTP: Pick the correct port when binding to 0.

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sctp_bindx() allows the use of unspecified port.  The problem is
that every address we bind to ends up selecting a new port if
the user specified port 0.  This patch allows re-use of the
already selected port when the port from bindx was 0.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
This commit is contained in:
Vlad Yasevich 2007-08-21 14:24:30 +09:00
parent d99fa42963
commit 2772b495ef
1 changed files with 1 additions and 0 deletions
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net/sctp/socket.c
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@ -353,6 +353,7 @@ SCTP_STATIC int sctp_do_bind(struct sock *sk, union sctp_addr *addr, int len)
* The function sctp_get_port_local() does duplicate address
* detection.
*/
addr->v4.sin_port = htons(snum);
if ((ret = sctp_get_port_local(sk, addr))) {
if (ret == (long) sk) {
/* This endpoint has a conflicting address. */