258 					  __u16 tcp_len, __be32 *tsval,  in tscookie_init()  argument
263 		.end = (__u8 *)tcp_header + tcp_len,  in tscookie_init()
350 	__u16 tcp_len;  member
401 	hdr->tcp_len = hdr->tcp->doff * 4;  in tcp_dissect()
402 	if (hdr->tcp_len < sizeof(*hdr->tcp))  in tcp_dissect()
532 	hdr->tcp_len = hdr->tcp->doff * 4;  in tcpv4_gen_synack()
533 	hdr->ipv4->tot_len = bpf_htons(sizeof(*hdr->ipv4) + hdr->tcp_len);  in tcpv4_gen_synack()
553 	hdr->tcp_len = hdr->tcp->doff * 4;  in tcpv6_gen_synack()
554 	hdr->ipv6->payload_len = bpf_htons(hdr->tcp_len);  in tcpv6_gen_synack()
605 		value = bpf_csum_diff(0, 0, (void *)hdr->tcp, hdr->tcp_len, 0);  in syncookie_handle_syn()
609 				      hdr->tcp_len, IPPROTO_TCP, value) != 0)  in syncookie_handle_syn()
615 						       hdr->tcp_len);  in syncookie_handle_syn()
618 		value = bpf_csum_diff(0, 0, (void *)hdr->tcp, hdr->tcp_len, 0);  in syncookie_handle_syn()
622 				    hdr->tcp_len, IPPROTO_TCP, value) != 0)  in syncookie_handle_syn()
628 						       hdr->tcp_len);  in syncookie_handle_syn()
637 	if (tscookie_init((void *)hdr->tcp, hdr->tcp_len,  in syncookie_handle_syn()
668 	value = bpf_csum_diff(0, 0, (void *)hdr->tcp, hdr->tcp_len, 0);  in syncookie_handle_syn()
674 						    hdr->tcp_len,  in syncookie_handle_syn()
686 						  hdr->tcp_len,  in syncookie_handle_syn()
750 		if (bpf_xdp_adjust_tail(ctx, TCP_MAXLEN - hdr->tcp_len))  in syncookie_part1()
758 		if (bpf_skb_change_tail(ctx, old_len + TCP_MAXLEN - hdr->tcp_len, 0))  in syncookie_part1()
791 	hdr->tcp_len = hdr->tcp->doff * 4;  in syncookie_part2()
792 	if (hdr->tcp_len < sizeof(*hdr->tcp))  in syncookie_part2()