net/ipv4/tcp_ao.c

400 	const struct tcphdr *th = tcp_hdr(skb);
403 				  th->source, th->dest, sisn, disn);
443 	const struct tcphdr *th = tcp_hdr(skb);
446 	if (!th->check) {
508 			      const struct tcphdr *th,
518 		len = sizeof(*th) + sizeof(struct tcp_ao_hdr) + hash_len;
519 		memcpy(hdr, th, sizeof(*th));
520 		memcpy(hdr + sizeof(*th),
521 		       (u8 *)th + hash_offset - sizeof(struct tcp_ao_hdr),
523 		memset(hdr + sizeof(*th) + sizeof(struct tcp_ao_hdr),
527 		len = th->doff << 2;
528 		memcpy(hdr, th, len);
545 		    const struct tcphdr *th, u32 sne)
548 	int hash_offset = ao_hash - (char *)th;
569 						saddr->a4.s_addr, th->doff * 4))
574 						&saddr->a6, th->doff * 4))
581 	if (tcp_ao_hash_header(&hp, th,
607 	const struct tcphdr *th = tcp_hdr(skb);
630 	if (tcp_ao_hash_header(&hp, th,
634 	if (tcp_sigpool_hash_skb_data(&hp, skb, th->doff << 2))
710 	const struct tcphdr *th = tcp_hdr(skb);
736 			sisn = th->seq;
791 			struct tcp_ao_key *key, struct tcphdr *th,
820 				 ntohl(th->seq));
822 				      hash_location - (u8 *)th, sne);
850 	const struct tcphdr *th = tcp_hdr(skb);
867 	if (tcp_parse_auth_options(th, NULL, &aoh) || !aoh)
888 	const struct tcphdr *th = tcp_hdr(skb);
907 			(phash - (u8 *)th), sne);
929 	const struct tcphdr *th = tcp_hdr(skb);
946 	if (unlikely(th->syn)) {
947 		sisn = th->seq;
968 		if (unlikely(th->syn && !th->ack))
972 					 ntohl(th->seq));
1001 	if (th->syn && !th->ack)
1008 						 ntohl(th->seq));
1011 		} else if (unlikely(th->ack && !th->syn)) {
1013 			sisn = htonl(ntohl(th->seq) - 1);
1014 			disn = htonl(ntohl(th->ack_seq) - 1);
1016 						 ntohl(th->seq));
1017 		} else if (unlikely(!th->syn)) {
1023 		if (th->syn || th->rst)
1024 			sisn = th->seq;
1538 	/* Full TCP header (th->doff << 2) should fit into scratch area,