94 			       __be32 daddr, __be32 saddr, const struct tcphdr *th);
360 	struct tcphdr *th = (struct tcphdr *)(icmp_skb->data + (iph->ihl << 2));  in tcp_v4_err()  local
375 				       th->dest, iph->saddr, ntohs(th->source),  in tcp_v4_err()
385 	seq = ntohl(th->seq);  in tcp_v4_err()
543 	struct tcphdr *th = tcp_hdr(skb);  in __tcp_v4_send_check()  local
546 		th->check = ~tcp_v4_check(skb->len, saddr, daddr, 0);  in __tcp_v4_send_check()
550 		th->check = tcp_v4_check(skb->len, saddr, daddr,  in __tcp_v4_send_check()
551 					 csum_partial(th,  in __tcp_v4_send_check()
552 						      th->doff << 2,  in __tcp_v4_send_check()
581 	const struct tcphdr *th = tcp_hdr(skb);  in tcp_v4_send_reset()  local
583 		struct tcphdr th;  in tcp_v4_send_reset()  member
599 	if (th->rst)  in tcp_v4_send_reset()
610 	rep.th.dest   = th->source;  in tcp_v4_send_reset()
611 	rep.th.source = th->dest;  in tcp_v4_send_reset()
612 	rep.th.doff   = sizeof(struct tcphdr) / 4;  in tcp_v4_send_reset()
613 	rep.th.rst    = 1;  in tcp_v4_send_reset()
615 	if (th->ack) {  in tcp_v4_send_reset()
616 		rep.th.seq = th->ack_seq;  in tcp_v4_send_reset()
618 		rep.th.ack = 1;  in tcp_v4_send_reset()
619 		rep.th.ack_seq = htonl(ntohl(th->seq) + th->syn + th->fin +  in tcp_v4_send_reset()
620 				       skb->len - (th->doff << 2));  in tcp_v4_send_reset()
625 	arg.iov[0].iov_len  = sizeof(rep.th);  in tcp_v4_send_reset()
629 	hash_location = tcp_parse_md5sig_option(th);  in tcp_v4_send_reset()
640 					     th->source, ip_hdr(skb)->daddr,  in tcp_v4_send_reset()
641 					     ntohs(th->source), inet_iif(skb));  in tcp_v4_send_reset()
667 		rep.th.doff = arg.iov[0].iov_len / 4;  in tcp_v4_send_reset()
671 				     ip_hdr(skb)->daddr, &rep.th);  in tcp_v4_send_reset()
714 	const struct tcphdr *th = tcp_hdr(skb);  in tcp_v4_send_ack()  local
716 		struct tcphdr th;  in tcp_v4_send_ack()  member
725 	memset(&rep.th, 0, sizeof(struct tcphdr));  in tcp_v4_send_ack()
729 	arg.iov[0].iov_len  = sizeof(rep.th);  in tcp_v4_send_ack()
740 	rep.th.dest    = th->source;  in tcp_v4_send_ack()
741 	rep.th.source  = th->dest;  in tcp_v4_send_ack()
742 	rep.th.doff    = arg.iov[0].iov_len / 4;  in tcp_v4_send_ack()
743 	rep.th.seq     = htonl(seq);  in tcp_v4_send_ack()
744 	rep.th.ack_seq = htonl(ack);  in tcp_v4_send_ack()
745 	rep.th.ack     = 1;  in tcp_v4_send_ack()
746 	rep.th.window  = htons(win);  in tcp_v4_send_ack()
757 		rep.th.doff = arg.iov[0].iov_len/4;  in tcp_v4_send_ack()
761 				    ip_hdr(skb)->daddr, &rep.th);  in tcp_v4_send_ack()
1040 			       __be32 daddr, __be32 saddr, const struct tcphdr *th)  in tcp_v4_md5_hash_hdr()  argument
1052 	if (tcp_v4_md5_hash_pseudoheader(hp, daddr, saddr, th->doff << 2))  in tcp_v4_md5_hash_hdr()
1054 	if (tcp_md5_hash_header(hp, th))  in tcp_v4_md5_hash_hdr()
1077 	const struct tcphdr *th = tcp_hdr(skb);  in tcp_v4_md5_hash_skb()  local
1099 	if (tcp_md5_hash_header(hp, th))  in tcp_v4_md5_hash_skb()
1101 	if (tcp_md5_hash_skb_data(hp, skb, th->doff << 2))  in tcp_v4_md5_hash_skb()
1134 	const struct tcphdr *th = tcp_hdr(skb);  in tcp_v4_inbound_md5_hash()  local
1140 	hash_location = tcp_parse_md5sig_option(th);  in tcp_v4_inbound_md5_hash()
1165 				     &iph->saddr, ntohs(th->source),  in tcp_v4_inbound_md5_hash()
1166 				     &iph->daddr, ntohs(th->dest),  in tcp_v4_inbound_md5_hash()
1347 	const struct tcphdr *th = tcp_hdr(skb);  in tcp_v4_hnd_req()  local
1352 	req = inet_csk_search_req(sk, th->source, iph->saddr, iph->daddr);  in tcp_v4_hnd_req()
1361 			th->source, iph->daddr, th->dest, inet_iif(skb));  in tcp_v4_hnd_req()
1373 	if (!th->syn)  in tcp_v4_hnd_req()
1454 	const struct tcphdr *th;  in tcp_v4_early_demux()  local
1464 	th = tcp_hdr(skb);  in tcp_v4_early_demux()
1466 	if (th->doff < sizeof(struct tcphdr) / 4)  in tcp_v4_early_demux()
1470 				       iph->saddr, th->source,  in tcp_v4_early_demux()
1471 				       iph->daddr, ntohs(th->dest),  in tcp_v4_early_demux()
1550 	const struct tcphdr *th;  in tcp_v4_rcv()  local
1564 	th = tcp_hdr(skb);  in tcp_v4_rcv()
1566 	if (th->doff < sizeof(struct tcphdr) / 4)  in tcp_v4_rcv()
1568 	if (!pskb_may_pull(skb, th->doff * 4))  in tcp_v4_rcv()
1579 	th = tcp_hdr(skb);  in tcp_v4_rcv()
1588 	TCP_SKB_CB(skb)->seq = ntohl(th->seq);  in tcp_v4_rcv()
1589 	TCP_SKB_CB(skb)->end_seq = (TCP_SKB_CB(skb)->seq + th->syn + th->fin +  in tcp_v4_rcv()
1590 				    skb->len - th->doff * 4);  in tcp_v4_rcv()
1591 	TCP_SKB_CB(skb)->ack_seq = ntohl(th->ack_seq);  in tcp_v4_rcv()
1592 	TCP_SKB_CB(skb)->tcp_flags = tcp_flag_byte(th);  in tcp_v4_rcv()
1597 	sk = __inet_lookup_skb(&tcp_hashinfo, skb, th->source, th->dest);  in tcp_v4_rcv()
1653 	if (skb->len < (th->doff << 2) || tcp_checksum_complete(skb)) {  in tcp_v4_rcv()
1677 	if (skb->len < (th->doff << 2)) {  in tcp_v4_rcv()
1685 	switch (tcp_timewait_state_process(inet_twsk(sk), skb, th)) {  in tcp_v4_rcv()
1689 							iph->saddr, th->source,  in tcp_v4_rcv()
1690 							iph->daddr, th->dest,  in tcp_v4_rcv()