SCTP_STATE_MASK
((_stcb)->asoc.state & SCTP_STATE_MASK)
switch (kernel_state & SCTP_STATE_MASK) {
KASSERT((new_state & ~SCTP_STATE_MASK) == 0,
stcb->asoc.state = (stcb->asoc.state & ~SCTP_STATE_MASK) | new_state;
if (((old_state & SCTP_STATE_MASK) != new_state) &&
!(((old_state & SCTP_STATE_MASK) == SCTP_STATE_EMPTY) &&
KASSERT((substate & SCTP_STATE_MASK) == 0,