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sctp: send SHUTDOWN-ACK chunk back to the source.

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SHUTDOWN-ACK is alaways sent to the primary path at the first time,
but should better transmit SHUTDOWN-ACK chunk to the same destination
transport address from which it received the SHUTDOWN chunk.
Based on the work from Wei Yongjun <yjwei@cn.fujitsu.com>.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
This commit is contained in:
Vlad Yasevich
2010-04-30 21:42:43 -04:00
parent a5f4cea74f
commit c17b02b38a
1 changed files with 6 additions and 2 deletions
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8
net/sctp/sm_sideeffect.c
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@@ -697,11 +697,15 @@ static void sctp_cmd_setup_t2(sctp_cmd_seq_t *cmds,
{ {
struct sctp_transport *t; struct sctp_transport *t;
t = sctp_assoc_choose_alter_transport(asoc, if (chunk->transport)
t = chunk->transport;
else {
t = sctp_assoc_choose_alter_transport(asoc,
asoc->shutdown_last_sent_to); asoc->shutdown_last_sent_to);
chunk->transport = t;
}
asoc->shutdown_last_sent_to = t; asoc->shutdown_last_sent_to = t;
asoc->timeouts[SCTP_EVENT_TIMEOUT_T2_SHUTDOWN] = t->rto; asoc->timeouts[SCTP_EVENT_TIMEOUT_T2_SHUTDOWN] = t->rto;
chunk->transport = t;
} }
/* Helper function to change the state of an association. */ /* Helper function to change the state of an association. */