SCTP_SHUTDOWN_SENT
case SCTP_SHUTDOWN_SENT:
user_state = SCTP_SHUTDOWN_SENT;
if ((src->state >= SCTP_SHUTDOWN_SENT || src->state == SCTP_CLOSED) &&
(dst->state >= SCTP_SHUTDOWN_SENT || dst->state == SCTP_CLOSED) &&
case SCTP_SHUTDOWN_SENT:
case SCTP_SHUTDOWN_SENT: