lib/tcp/tcp.c

2621 	uint32_t	seg_seq;
2659 	seg_seq = ntohl(tcph->tha_seq);
2742 		tcp_time_wait_processing(tcp, mp, seg_seq, seg_ack,
2798 		tcp->tcp_irs = seg_seq;
2799 		tcp->tcp_rack = seg_seq;
2800 		tcp->tcp_rnxt = seg_seq + 1;
2858 		tcp->tcp_irs = seg_seq;
2859 		tcp->tcp_rack = seg_seq;
2860 		tcp->tcp_rnxt = seg_seq + 1;
2889 			tcp->tcp_swl1 = seg_seq;
2919 			seg_seq++;
2970 	gap = seg_seq - tcp->tcp_rnxt;
2974 	 * and what we got for seg_seq.  A positive value for gap means
2979 		if (seg_seq == tcp->tcp_irs && (flags & TH_SYN) &&
2982 			seg_seq++;
3016 			    "%d, flags 0x%x, seg_seq %u, seg_ack %u, "
3018 			    gap, rgap, flags, seg_seq, seg_ack,
3058 		/* Fix seg_seq, and chew the gap off the front. */
3059 		seg_seq = tcp->tcp_rnxt;
3119 			if (tcp->tcp_rwnd == 0 && seg_seq == tcp->tcp_rnxt) {
3175 	    SEQ_LEQ(seg_seq, tcp->tcp_rack)) {
3180 	if (seg_seq != tcp->tcp_rnxt || tcp->tcp_reass_head) {
3190 			tcp->tcp_ofo_fin_seq = seg_seq + seg_len;
3199 				    seg_seq, seg_seq + seg_len,
3207 			mp = tcp_reass(tcp, mp, seg_seq);
3215 				seg_seq = tcp->tcp_rnxt;
3222 				    seg_seq + seg_len == tcp->tcp_ofo_fin_seq) {
3251 		    seg_seq + seg_len == tcp->tcp_ofo_fin_seq) {
3286 		 * be already rejected.  Note that we allow seg_seq to be
3289 		assert(SEQ_GEQ(seg_seq, tcp->tcp_rnxt) &&
3290 		    SEQ_LEQ(seg_seq, tcp->tcp_rnxt + tcp->tcp_rwnd));
3300 		    seg_seq + 1, TH_RST|TH_ACK, 0, sock_id);
3309 		printf("No ack in segment, dropped it, seq:%x\n", seg_seq);
3420 		tcp->tcp_swl1 = seg_seq;
3969 	    SEQ_LT(tcp->tcp_swl1, seg_seq) ||
3970 	    (tcp->tcp_swl1 == seg_seq && new_swnd > tcp->tcp_swnd)) {
3984 		tcp->tcp_swl1 = seg_seq;
5203     uint32_t seg_seq, uint32_t seg_ack, int seg_len, tcph_t *tcph,
5232 	gap = seg_seq - tcp->tcp_rnxt;
5265 		/* Fix seg_seq, and chew the gap off the front. */
5266 		seg_seq = tcp->tcp_rnxt;
5340 	    SEQ_LEQ(seg_seq, tcp->tcp_rack)) {
5345 	if (seg_seq != tcp->tcp_rnxt && seg_len > 0) {
5360 		tcp_xmit_ctl("TH_SYN", tcp, NULL, seg_ack, seg_seq + 1,
6077 	uint32_t	seg_seq;
6084 	seg_seq = BE32_TO_U32(tcph->th_seq);
6098 		    mp, 0, seg_seq + seg_len,