sys/netinet/tcp_input.c

307 	    SEQ_GT(th->th_ack, tp->t_pmtud_th_seq))
326 	NTOHL(th->th_ack);
339 	HTONL(th->th_ack);
1149 	(void)tcp_respond(0, m, m, th, th->th_seq + tlen, th->th_ack, TH_ACK);
1161 		tcp_respond(0, m, m, th, (tcp_seq)0, th->th_ack, TH_RST);
1829 			if (SEQ_GT(th->th_ack, tp->snd_una) &&
1830 			    SEQ_LEQ(th->th_ack, tp->snd_max) &&
1839 				    SEQ_GT(th->th_ack, tp->t_rtseq))
1842 				acked = th->th_ack - tp->snd_una;
1858 				tp->snd_una = th->th_ack;
1866 				 * is eventually larger than th_ack and thus
1902 		} else if (th->th_ack == tp->snd_una &&
2053 		    (SEQ_LEQ(th->th_ack, tp->iss) ||
2054 		     SEQ_GT(th->th_ack, tp->snd_max)))
2064 			tp->snd_una = th->th_ack;
2157 		    (SEQ_LEQ(th->th_ack, tp->iss) ||
2158 		     SEQ_GT(th->th_ack, tp->snd_max)))
2398 			tcp_respond(tp, m, m, th, (tcp_seq)0, th->th_ack - 1,
2427 		if (SEQ_GT(tp->snd_una, th->th_ack) ||
2428 		    SEQ_GT(th->th_ack, tp->snd_max))
2447 	 *	tp->snd_una < th->th_ack <= tp->snd_max
2448 	 * then advance tp->snd_una to th->th_ack and drop
2459 		if (SEQ_LEQ(th->th_ack, tp->snd_una)) {
2475 				    th->th_ack != tp->snd_una)
2506 				    SEQ_LT(th->th_ack,
2518 		if (SEQ_GT(th->th_ack, tp->snd_max)) {
2522 		acked = th->th_ack - tp->snd_una;
2539 		else if (tp->t_rtttime && SEQ_GT(th->th_ack, tp->t_rtseq))
2548 		if (th->th_ack == tp->snd_max) {
2579 		tp->snd_una = th->th_ack;
2658 	    (tp->snd_wl1 == th->th_seq && (SEQ_LT(tp->snd_wl2, th->th_ack) ||
2659 	    (tp->snd_wl2 == th->th_ack && tiwin > tp->snd_wnd))))) {
2662 		    tp->snd_wl2 == th->th_ack && tiwin > tp->snd_wnd)
2666 		tp->snd_wl2 = th->th_ack;
2922 		(void)tcp_respond(tp, m, m, th, (tcp_seq)0, th->th_ack, TH_RST);