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authorWei Yongjun <yjwei@cn.fujitsu.com>2011-05-29 23:23:36 +0000
committerDavid S. Miller <davem@davemloft.net>2011-05-31 15:29:17 -0700
commita000c01e60e40e15304ffe48fff051d17a7bea91 (patch)
tree429060980f87287a3df70d8d286b73d6f1985cc8 /net/sctp/sm_statefuns.c
parentb10cec8a4e8167075b9e1ff3f05419769e7f381a (diff)
downloadop-kernel-dev-a000c01e60e40e15304ffe48fff051d17a7bea91.zip
op-kernel-dev-a000c01e60e40e15304ffe48fff051d17a7bea91.tar.gz
sctp: stop pending timers and purge queues when peer restart asoc
If the peer restart the asoc, we should not only fail any unsent/unacked data, but also stop the T3-rtx, SACK, T4-rto timers, and teardown ASCONF queues. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp/sm_statefuns.c')
-rw-r--r--net/sctp/sm_statefuns.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index 7f4a4f8..a297283 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -1718,11 +1718,21 @@ static sctp_disposition_t sctp_sf_do_dupcook_a(const struct sctp_endpoint *ep,
return SCTP_DISPOSITION_CONSUME;
}
- /* For now, fail any unsent/unacked data. Consider the optional
- * choice of resending of this data.
+ /* For now, stop pending T3-rtx and SACK timers, fail any unsent/unacked
+ * data. Consider the optional choice of resending of this data.
*/
+ sctp_add_cmd_sf(commands, SCTP_CMD_T3_RTX_TIMERS_STOP, SCTP_NULL());
+ sctp_add_cmd_sf(commands, SCTP_CMD_TIMER_STOP,
+ SCTP_TO(SCTP_EVENT_TIMEOUT_SACK));
sctp_add_cmd_sf(commands, SCTP_CMD_PURGE_OUTQUEUE, SCTP_NULL());
+ /* Stop pending T4-rto timer, teardown ASCONF queue, ASCONF-ACK queue
+ * and ASCONF-ACK cache.
+ */
+ sctp_add_cmd_sf(commands, SCTP_CMD_TIMER_STOP,
+ SCTP_TO(SCTP_EVENT_TIMEOUT_T4_RTO));
+ sctp_add_cmd_sf(commands, SCTP_CMD_PURGE_ASCONF_QUEUE, SCTP_NULL());
+
repl = sctp_make_cookie_ack(new_asoc, chunk);
if (!repl)
goto nomem;
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