SCTP_SHUTDOWN_PENDING
case SCTP_SHUTDOWN_PENDING:
user_state = SCTP_SHUTDOWN_PENDING;
if (src->state < SCTP_SHUTDOWN_PENDING) {
pf_set_protostate(*state, psrc, SCTP_SHUTDOWN_PENDING);
pf_set_protostate(sm, psrc, SCTP_SHUTDOWN_PENDING);
case SCTP_SHUTDOWN_PENDING:
case SCTP_SHUTDOWN_PENDING: