288 static void update_ip_l4_checksum(struct sk_buff *skb, struct iphdr *nh,  in update_ip_l4_checksum()  argument
293 	if (nh->frag_off & htons(IP_OFFSET))  in update_ip_l4_checksum()
296 	if (nh->protocol == IPPROTO_TCP) {  in update_ip_l4_checksum()
300 	} else if (nh->protocol == IPPROTO_UDP) {  in update_ip_l4_checksum()
314 static void set_ip_addr(struct sk_buff *skb, struct iphdr *nh,  in set_ip_addr()  argument
317 	update_ip_l4_checksum(skb, nh, *addr, new_addr);  in set_ip_addr()
318 	csum_replace4(&nh->check, *addr, new_addr);  in set_ip_addr()
370 static void set_ipv6_fl(struct ipv6hdr *nh, u32 fl, u32 mask)  in set_ipv6_fl()  argument
373 	OVS_SET_MASKED(nh->flow_lbl[0], (u8)(fl >> 16), (u8)(mask >> 16));  in set_ipv6_fl()
374 	OVS_SET_MASKED(nh->flow_lbl[1], (u8)(fl >> 8), (u8)(mask >> 8));  in set_ipv6_fl()
375 	OVS_SET_MASKED(nh->flow_lbl[2], (u8)fl, (u8)mask);  in set_ipv6_fl()
378 static void set_ip_ttl(struct sk_buff *skb, struct iphdr *nh, u8 new_ttl,  in set_ip_ttl()  argument
381 	new_ttl = OVS_MASKED(nh->ttl, new_ttl, mask);  in set_ip_ttl()
383 	csum_replace2(&nh->check, htons(nh->ttl << 8), htons(new_ttl << 8));  in set_ip_ttl()
384 	nh->ttl = new_ttl;  in set_ip_ttl()
391 	struct iphdr *nh;  in set_ipv4()  local
400 	nh = ip_hdr(skb);  in set_ipv4()
407 		new_addr = OVS_MASKED(nh->saddr, key->ipv4_src, mask->ipv4_src);  in set_ipv4()
409 		if (unlikely(new_addr != nh->saddr)) {  in set_ipv4()
410 			set_ip_addr(skb, nh, &nh->saddr, new_addr);  in set_ipv4()
415 		new_addr = OVS_MASKED(nh->daddr, key->ipv4_dst, mask->ipv4_dst);  in set_ipv4()
417 		if (unlikely(new_addr != nh->daddr)) {  in set_ipv4()
418 			set_ip_addr(skb, nh, &nh->daddr, new_addr);  in set_ipv4()
423 		ipv4_change_dsfield(nh, ~mask->ipv4_tos, key->ipv4_tos);  in set_ipv4()
424 		flow_key->ip.tos = nh->tos;  in set_ipv4()
427 		set_ip_ttl(skb, nh, key->ipv4_ttl, mask->ipv4_ttl);  in set_ipv4()
428 		flow_key->ip.ttl = nh->ttl;  in set_ipv4()
443 	struct ipv6hdr *nh;  in set_ipv6()  local
451 	nh = ipv6_hdr(skb);  in set_ipv6()
458 		__be32 *saddr = (__be32 *)&nh->saddr;  in set_ipv6()
474 		__be32 *daddr = (__be32 *)&nh->daddr;  in set_ipv6()
480 			if (ipv6_ext_hdr(nh->nexthdr))  in set_ipv6()
493 		ipv6_change_dsfield(nh, ~mask->ipv6_tclass, key->ipv6_tclass);  in set_ipv6()
494 		flow_key->ip.tos = ipv6_get_dsfield(nh);  in set_ipv6()
497 		set_ipv6_fl(nh, ntohl(key->ipv6_label),  in set_ipv6()
500 		    *(__be32 *)nh & htonl(IPV6_FLOWINFO_FLOWLABEL);  in set_ipv6()
503 		OVS_SET_MASKED(nh->hop_limit, key->ipv6_hlimit,  in set_ipv6()
505 		flow_key->ip.ttl = nh->hop_limit;  in set_ipv6()