net/ipv6/seg6_iptunnel.c

132 	struct ipv6hdr *hdr, *inner_hdr;
138 	tot_len = hdrlen + sizeof(*hdr);
150 	hdr = ipv6_hdr(skb);
158 		ip6_flow_hdr(hdr, ip6_tclass(ip6_flowinfo(inner_hdr)),
160 		hdr->hop_limit = inner_hdr->hop_limit;
162 		ip6_flow_hdr(hdr, 0, flowlabel);
163 		hdr->hop_limit = ip6_dst_hoplimit(skb_dst(skb));
176 	hdr->nexthdr = NEXTHDR_ROUTING;
178 	isrh = (void *)hdr + sizeof(*hdr);
183 	hdr->daddr = isrh->segments[isrh->first_segment];
184 	set_tun_src(net, dst->dev, &hdr->daddr, &hdr->saddr);
188 		err = seg6_push_hmac(net, &hdr->saddr, isrh);
194 	hdr->payload_len = htons(skb->len - sizeof(struct ipv6hdr));
196 	skb_postpush_rcsum(skb, hdr, tot_len);
209 	struct ipv6hdr *hdr, *inner_hdr;
243 	hdr = ipv6_hdr(skb);
247 		ip6_flow_hdr(hdr, ip6_tclass(ip6_flowinfo(inner_hdr)),
249 		hdr->hop_limit = inner_hdr->hop_limit;
251 		ip6_flow_hdr(hdr, 0, flowlabel);
252 		hdr->hop_limit = ip6_dst_hoplimit(skb_dst(skb));
261 	hdr->daddr = osrh->segments[first_seg];
264 		hdr->nexthdr = proto;
266 		set_tun_src(net, dst->dev, &hdr->daddr, &hdr->saddr);
272 	hdr->nexthdr = NEXTHDR_ROUTING;
273 	isrh = (void *)hdr + sizeof(struct ipv6hdr);
302 	set_tun_src(net, dst->dev, &hdr->daddr, &hdr->saddr);
306 		err = seg6_push_hmac(net, &hdr->saddr, isrh);
313 	hdr->payload_len = htons(skb->len - sizeof(struct ipv6hdr));
315 	skb_postpush_rcsum(skb, hdr, tot_len);
323 	struct ipv6hdr *hdr, *oldhdr;
343 	hdr = ipv6_hdr(skb);
345 	memmove(hdr, oldhdr, sizeof(*hdr));
347 	isrh = (void *)hdr + sizeof(*hdr);
350 	isrh->nexthdr = hdr->nexthdr;
351 	hdr->nexthdr = NEXTHDR_ROUTING;
353 	isrh->segments[0] = hdr->daddr;
354 	hdr->daddr = isrh->segments[isrh->first_segment];
360 		err = seg6_push_hmac(net, &hdr->saddr, isrh);
366 	hdr->payload_len = htons(skb->len - sizeof(struct ipv6hdr));
368 	skb_postpush_rcsum(skb, hdr, sizeof(struct ipv6hdr) + hdrlen);
543 		struct ipv6hdr *hdr = ipv6_hdr(skb);
547 		fl6.daddr = hdr->daddr;
548 		fl6.saddr = hdr->saddr;
549 		fl6.flowlabel = ip6_flowinfo(hdr);
551 		fl6.flowi6_proto = hdr->nexthdr;