89 			       __be32 daddr, __be32 saddr, const struct tcphdr *th);
464  * it's just the icmp type << 8 | icmp code.  After adjustment
465  * header points to the first 8 bytes of the tcp header.  We need
479 	struct tcphdr *th = (struct tcphdr *)(skb->data + (iph->ihl << 2));  in tcp_v4_err()  local
490 				       iph->daddr, th->dest, iph->saddr,  in tcp_v4_err()
491 				       ntohs(th->source), inet_iif(skb), 0);  in tcp_v4_err()
502 	seq = ntohl(th->seq);  in tcp_v4_err()
605 		ip_icmp_error(sk, skb, err, th->dest, info, (u8 *)th);  in tcp_v4_err()
651 	struct tcphdr *th = tcp_hdr(skb);  in __tcp_v4_send_check()  local
653 	th->check = ~tcp_v4_check(skb->len, saddr, daddr, 0);  in __tcp_v4_send_check()
692 				 (aoh->rnext_keyid << 8) | keyid);  in tcp_v4_ao_sign_reset()
728 	const struct tcphdr *th = tcp_hdr(skb);  in tcp_v4_send_reset()  local
730 		struct tcphdr th;  in tcp_v4_send_reset()  member
748 	if (th->rst)  in tcp_v4_send_reset()
759 	rep.th.dest   = th->source;  in tcp_v4_send_reset()
760 	rep.th.source = th->dest;  in tcp_v4_send_reset()
761 	rep.th.doff   = sizeof(struct tcphdr) / 4;  in tcp_v4_send_reset()
762 	rep.th.rst    = 1;  in tcp_v4_send_reset()
764 	if (th->ack) {  in tcp_v4_send_reset()
765 		rep.th.seq = th->ack_seq;  in tcp_v4_send_reset()
767 		rep.th.ack = 1;  in tcp_v4_send_reset()
768 		rep.th.ack_seq = htonl(ntohl(th->seq) + th->syn + th->fin +  in tcp_v4_send_reset()
769 				       skb->len - (th->doff << 2));  in tcp_v4_send_reset()
774 	arg.iov[0].iov_len  = sizeof(rep.th);  in tcp_v4_send_reset()
782 	if (aoh && tcp_v4_ao_sign_reset(sk, skb, aoh, &arg, &rep.th, rep.opt))  in tcp_v4_send_reset()
812 					     th->source, ip_hdr(skb)->daddr,  in tcp_v4_send_reset()
813 					     ntohs(th->source), dif, sdif);  in tcp_v4_send_reset()
837 				   (TCPOPT_MD5SIG << 8) |  in tcp_v4_send_reset()
841 		rep.th.doff = arg.iov[0].iov_len / 4;  in tcp_v4_send_reset()
845 				     ip_hdr(skb)->daddr, &rep.th);  in tcp_v4_send_reset()
855 			rep.th.doff = arg.iov[0].iov_len / 4;  in tcp_v4_send_reset()
924 	const struct tcphdr *th = tcp_hdr(skb);  in tcp_v4_send_ack()  local
926 		struct tcphdr th;  in tcp_v4_send_ack()  member
934 	memset(&rep.th, 0, sizeof(struct tcphdr));  in tcp_v4_send_ack()
938 	arg.iov[0].iov_len  = sizeof(rep.th);  in tcp_v4_send_ack()
941 				   (TCPOPT_TIMESTAMP << 8) |  in tcp_v4_send_ack()
949 	rep.th.dest    = th->source;  in tcp_v4_send_ack()
950 	rep.th.source  = th->dest;  in tcp_v4_send_ack()
951 	rep.th.doff    = arg.iov[0].iov_len / 4;  in tcp_v4_send_ack()
952 	rep.th.seq     = htonl(seq);  in tcp_v4_send_ack()
953 	rep.th.ack_seq = htonl(ack);  in tcp_v4_send_ack()
954 	rep.th.ack     = 1;  in tcp_v4_send_ack()
955 	rep.th.window  = htons(win);  in tcp_v4_send_ack()
963 					  (TCPOPT_MD5SIG << 8) |  in tcp_v4_send_ack()
966 		rep.th.doff = arg.iov[0].iov_len/4;  in tcp_v4_send_ack()
970 				    ip_hdr(skb)->daddr, &rep.th);  in tcp_v4_send_ack()
979 					  (key->ao_key->sndid << 8) |  in tcp_v4_send_ack()
982 		rep.th.doff = arg.iov[0].iov_len / 4;  in tcp_v4_send_ack()
988 				&rep.th, key->sne);  in tcp_v4_send_ack()
1558 				   const struct tcphdr *th, int nbytes)  argument
1572 	memcpy(_th, th, sizeof(*th));
1575 	sg_init_one(&sg, bp, sizeof(*bp) + sizeof(*th));
1577 				sizeof(*bp) + sizeof(*th));
1582 			       __be32 daddr, __be32 saddr, const struct tcphdr *th)  argument
1591 	if (tcp_v4_md5_hash_headers(&hp, daddr, saddr, th, th->doff << 2))
1613 	const struct tcphdr *th = tcp_hdr(skb);  local
1632 	if (tcp_v4_md5_hash_headers(&hp, daddr, saddr, th, skb->len))
1634 	if (tcp_sigpool_hash_skb_data(&hp, skb, th->doff << 2))
1852 	const struct tcphdr *th = tcp_hdr(skb);  local
1854 	if (!th->syn)
1861 			 struct tcphdr *th, u32 *cookie)  argument
1866 				    &tcp_request_sock_ipv4_ops, sk, th);
1868 		*cookie = __cookie_v4_init_sequence(iph, th, &mss);
1959 	const struct tcphdr *th;  local
1969 	th = tcp_hdr(skb);
1971 	if (th->doff < sizeof(struct tcphdr) / 4)
1975 				       iph->saddr, th->source,
1976 				       iph->daddr, ntohs(th->dest),
1999 	const struct tcphdr *th;  local
2031 	th = (const struct tcphdr *)skb->data;
2032 	hdrlen = th->doff * 4;
2051 	    thtail->doff != th->doff ||
2052 	    memcmp(thtail + 1, th + 1, hdrlen - sizeof(*th)))
2070 			thtail->window = th->window;
2081 		thtail->fin |= th->fin;
2123 	struct tcphdr *th = (struct tcphdr *)skb->data;  local
2125 	return sk_filter_trim_cap(sk, skb, th->doff * 4);
2136 			   const struct tcphdr *th)  argument
2145 	TCP_SKB_CB(skb)->seq = ntohl(th->seq);
2146 	TCP_SKB_CB(skb)->end_seq = (TCP_SKB_CB(skb)->seq + th->syn + th->fin +
2147 				    skb->len - th->doff * 4);
2148 	TCP_SKB_CB(skb)->ack_seq = ntohl(th->ack_seq);
2149 	TCP_SKB_CB(skb)->tcp_flags = tcp_flag_byte(th);
2168 	const struct tcphdr *th;  local
2183 	th = (const struct tcphdr *)skb->data;
2185 	if (unlikely(th->doff < sizeof(struct tcphdr) / 4)) {
2189 	if (!pskb_may_pull(skb, th->doff * 4))
2194 	 * provided case of th->doff==0 is eliminated.
2200 	th = (const struct tcphdr *)skb->data;
2204 			       skb, __tcp_hdrlen(th), th->source,
2205 			       th->dest, sdif, &refcounted);
2253 			th = (const struct tcphdr *)skb->data;
2255 			tcp_v4_fill_cb(skb, iph, th);
2312 	th = (const struct tcphdr *)skb->data;
2314 	tcp_v4_fill_cb(skb, iph, th);
2347 	tcp_v4_fill_cb(skb, iph, th);
2379 	tcp_v4_fill_cb(skb, iph, th);
2385 	switch (tcp_timewait_state_process(inet_twsk(sk), skb, th)) {
2389 							skb, __tcp_hdrlen(th),
2390 							iph->saddr, th->source,
2391 							iph->daddr, th->dest,
2836 		" %02X %08X:%08X %02X:%08lX %08X %5u %8d %u %d %pK",
2897 			"%08X %5u %8d %lu %d %pK %lu %lu %u %u %d",
2930 		" %02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d %pK",
2976 	uid_t uid __aligned(8);