diff options
Diffstat (limited to 'sys/netinet/sctp_input.c')
| -rw-r--r-- | sys/netinet/sctp_input.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/sys/netinet/sctp_input.c b/sys/netinet/sctp_input.c index d211e9a..ef18737 100644 --- a/sys/netinet/sctp_input.c +++ b/sys/netinet/sctp_input.c @@ -918,7 +918,8 @@ sctp_handle_shutdown(struct sctp_shutdown_chunk *cp, static void sctp_handle_shutdown_ack(struct sctp_shutdown_ack_chunk *cp, - struct sctp_tcb *stcb, struct sctp_nets *net) + struct sctp_tcb *stcb, + struct sctp_nets *net) { struct sctp_association *asoc; @@ -934,6 +935,13 @@ sctp_handle_shutdown_ack(struct sctp_shutdown_ack_chunk *cp, asoc = &stcb->asoc; /* process according to association state */ + if ((SCTP_GET_STATE(asoc) == SCTP_STATE_COOKIE_WAIT) || + (SCTP_GET_STATE(asoc) == SCTP_STATE_COOKIE_ECHOED)) { + /* unexpected SHUTDOWN-ACK... do OOTB handling... */ + sctp_send_shutdown_complete(stcb, net, 1); + SCTP_TCB_UNLOCK(stcb); + return; + } if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) && (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) { /* unexpected SHUTDOWN-ACK... so ignore... */ @@ -975,7 +983,7 @@ sctp_handle_shutdown_ack(struct sctp_shutdown_ack_chunk *cp, /* stop the timer */ sctp_timer_stop(SCTP_TIMER_TYPE_SHUTDOWN, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_INPUT + SCTP_LOC_9); /* send SHUTDOWN-COMPLETE */ - sctp_send_shutdown_complete(stcb, net); + sctp_send_shutdown_complete(stcb, net, 0); /* notify upper layer protocol */ if (stcb->sctp_socket) { sctp_ulp_notify(SCTP_NOTIFY_ASSOC_DOWN, stcb, 0, NULL, SCTP_SO_NOT_LOCKED); |
