bsd/netinet/tcp_input.c

602 	if (th->th_seq != tp->rcv_nxt &&
624 		if (SEQ_GT(q->tqe_th->th_seq, th->th_seq))
637 		i = p->tqe_th->th_seq + p->tqe_len - th->th_seq;
666 			th->th_seq += i;
684 		register int i = (th->th_seq + *tlenp) - q->tqe_th->th_seq;
688 			q->tqe_th->th_seq += i;
730 	if (!q || q->tqe_th->th_seq != tp->rcv_nxt) {
774 			    q->tqe_th->th_seq - (tp->irs + 1), 0))
785 	} while (q && q->tqe_th->th_seq == tp->rcv_nxt);
816 				te->tqe_th->th_seq - (tp->irs + 1), 1)) {
1583 		     th->th_seq, th->th_ack, th->th_win);
1641 		  th->th_seq, th->th_ack, th->th_win);
1742     	NTOHL(th->th_seq);
2296 		SEQ_GEQ(th->th_seq, tp->last_ack_sent) &&
2297 		SEQ_LT(th->th_seq, tp->last_ack_sent + tp->rcv_wnd)) {
2396 	    th->th_seq == tp->rcv_nxt &&
2469 	    th->th_seq == tp->rcv_nxt &&
2480 		   SEQ_LEQ(th->th_seq, tp->last_ack_sent)) {
2600 			    ((th->th_seq - tp->irs) >
2602 			    ((tp->t_idleat == 0) || ((th->th_seq -
2616 			 * th_seq.
2618 			tp->snd_wl1 = th->th_seq;
2661 			    th->th_seq - (tp->irs + 1), 0)) {
2668 			     		th->th_seq, th->th_ack, th->th_win);
2675 			     		th->th_seq, th->th_ack, th->th_win);
2808 		tp->irs = th->th_seq;
2923 		tp->irs = th->th_seq;
3023 		 * Advance th->th_seq to correspond to first data byte.
3027 		th->th_seq++;
3036 		tp->snd_wl1 = th->th_seq - 1;
3037 		tp->rcv_up = th->th_seq;
3139 		if ((SEQ_GEQ(th->th_seq, tp->last_ack_sent) &&
3140 		    SEQ_LT(th->th_seq, tp->last_ack_sent + tp->rcv_wnd)) ||
3142 		    ((tp->last_ack_sent == th->th_seq) ||
3143 		    ((tp->last_ack_sent -1) == th->th_seq)))) {
3152 				if (tp->last_ack_sent != th->th_seq) {
3232 	if (tp->t_state == TCPS_SYN_RECEIVED && SEQ_LT(th->th_seq, tp->irs)) {
3238 	todrop = tp->rcv_nxt - th->th_seq;
3242 			th->th_seq++;
3286 		th->th_seq += todrop;
3317 	todrop = (th->th_seq+tlen) - (tp->rcv_nxt+tp->rcv_wnd);
3330 			    SEQ_GT(th->th_seq, tp->rcv_nxt)) {
3343 			if (tp->rcv_wnd == 0 && th->th_seq == tp->rcv_nxt) {
3374 	    SEQ_LEQ(th->th_seq, tp->last_ack_sent) &&
3375 	    SEQ_LEQ(tp->last_ack_sent, th->th_seq + tlen +
3459 		tp->snd_wl1 = th->th_seq - 1;
4079 	    (SEQ_LT(tp->snd_wl1, th->th_seq) ||
4080 	    (tp->snd_wl1 == th->th_seq && (SEQ_LT(tp->snd_wl2, th->th_ack) ||
4087 		tp->snd_wl1 = th->th_seq;
4124 		if (SEQ_GT(th->th_seq+th->th_urp, tp->rcv_up)) {
4125 			tp->rcv_up = th->th_seq + th->th_urp;
4187 		tcp_seq save_start = th->th_seq;
4188 		tcp_seq save_end = th->th_seq + tlen;
4202 		if (th->th_seq == tp->rcv_nxt &&
4245 			    th->th_seq - (tp->irs + 1), 0)) {
4264 			     		th->th_seq, th->th_ack, th->th_win);
4271 			     		th->th_seq, th->th_ack, th->th_win);
4464 		tcp_respond(tp, mtod(m, void *), th, m, th->th_seq+tlen,