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Don't send SHUTDOWN chunk when the association is in a front state

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and the applications calls shutdown(..., SHUT_WR) or
shutdown(..., SHUT_RDWR).

MFC after:	1 week.
This commit is contained in:
Michael Tuexen 2015-11-21 16:25:09 +00:00
parent dd76e27f7a
commit 8ca16419bb
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=291137
2 changed files with 5 additions and 8 deletions
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6
sys/netinet/sctp_pcb.c
View File

@ -3640,13 +3640,11 @@ sctp_inpcb_free(struct sctp_inpcb *inp, int immediate, int from)
* macro here since le_next will get freed as part of the
* sctp_free_assoc() call.
*/
if (so) {
#ifdef IPSEC
if (ip_pcb->inp_sp != NULL) {
ipsec_delete_pcbpolicy(ip_pcb);
#endif /* IPSEC */
/* Unlocks not needed since the socket is gone now */
}
#endif
if (ip_pcb->inp_options) {
(void)sctp_m_free(ip_pcb->inp_options);
ip_pcb->inp_options = 0;

7
sys/netinet/sctp_usrreq.c
View File

@ -1007,16 +1007,15 @@ sctp_shutdown(struct socket *so)
} else {
netp = stcb->asoc.primary_destination;
}
if (TAILQ_EMPTY(&asoc->send_queue) &&
if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) &&
TAILQ_EMPTY(&asoc->send_queue) &&
TAILQ_EMPTY(&asoc->sent_queue) &&
(asoc->stream_queue_cnt == 0)) {
if (asoc->locked_on_sending) {
goto abort_anyway;
}
/* there is nothing queued to send, so I'm done... */
if (SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) {
SCTP_STAT_DECR_GAUGE32(sctps_currestab);
}
SCTP_STAT_DECR_GAUGE32(sctps_currestab);
SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
sctp_stop_timers_for_shutdown(stcb);