TOF_TS
if (to.to_flags & TOF_TS) {
(!(to.to_flags & TOF_TS) ||
if ((to.to_flags & TOF_TS) &&
(to.to_flags & TOF_TS) && to.to_tsecr &&
if ((to.to_flags & TOF_TS) && to.to_tsecr) {
if ((to.to_flags & TOF_TS) && tp->ts_recent != 0 &&
if ((to.to_flags & TOF_TS) && SEQ_LEQ(th->th_seq, tp->last_ack_sent) &&
(to.to_flags & TOF_TS) && (to.to_tsecr != 0) &&
if ((to.to_flags & TOF_TS) && (to.to_tsecr != 0))
to->to_flags |= TOF_TS;
if (to->to_flags & TOF_TS) {