SCTP_HAD_NO_TCB
#define SCTP_FROM_MIDDLE_BOX SCTP_HAD_NO_TCB
((ch->chunk_flags & SCTP_HAD_NO_TCB) &&
comp_cp->shut_cmp.ch.chunk_flags = SCTP_HAD_NO_TCB;
abm->msg.ch.chunk_flags = SCTP_HAD_NO_TCB;