From 536428a9b9a98495f7ea54ad95cad83e22f1d47d Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Fri, 5 Sep 2008 08:55:26 +0800 Subject: sctp: Fix to start T5-shutdown-guard timer while enter SHUTDOWN-SENT state RFC 4960: Section 9.2 The sender of the SHUTDOWN MAY also start an overall guard timer 'T5-shutdown-guard' to bound the overall time for the shutdown sequence. At the expiration of this timer, the sender SHOULD abort the association by sending an ABORT chunk. If the 'T5-shutdown- guard' timer is used, it SHOULD be set to the recommended value of 5 times 'RTO.Max'. The timer 'T5-shutdown-guard' is used to counter the overall time for shutdown sequence, and it's start by the sender of the SHUTDOWN. So timer 'T5-shutdown-guard' should be start when we send the first SHUTDOWN chunk and enter the SHUTDOWN-SENT state, not start when we receipt of the SHUTDOWN primitive and enter SHUTDOWN-PENDING state. If 'T5-shutdown-guard' timer is start at SHUTDOWN-PENDING state, the association may be ABORT while data is still transmitting. Signed-off-by: Wei Yongjun Signed-off-by: Vlad Yasevich --- net/sctp/sm_statetable.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net/sctp/sm_statetable.c') diff --git a/net/sctp/sm_statetable.c b/net/sctp/sm_statetable.c index d991237fb400..dd4ddc40c0ad 100644 --- a/net/sctp/sm_statetable.c +++ b/net/sctp/sm_statetable.c @@ -897,7 +897,7 @@ static const sctp_sm_table_entry_t other_event_table[SCTP_NUM_OTHER_TYPES][SCTP_ /* SCTP_STATE_ESTABLISHED */ \ TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ /* SCTP_STATE_SHUTDOWN_PENDING */ \ - TYPE_SCTP_FUNC(sctp_sf_t5_timer_expire), \ + TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ /* SCTP_STATE_SHUTDOWN_SENT */ \ TYPE_SCTP_FUNC(sctp_sf_t5_timer_expire), \ /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ -- cgit v1.2.3