312 		    const struct nshhdr *nh)  in push_nsh()  argument
316 	err = nsh_push(skb, nh);  in push_nsh()
343 static void update_ip_l4_checksum(struct sk_buff *skb, struct iphdr *nh,  in update_ip_l4_checksum()  argument
348 	if (nh->frag_off & htons(IP_OFFSET))  in update_ip_l4_checksum()
351 	if (nh->protocol == IPPROTO_TCP) {  in update_ip_l4_checksum()
355 	} else if (nh->protocol == IPPROTO_UDP) {  in update_ip_l4_checksum()
369 static void set_ip_addr(struct sk_buff *skb, struct iphdr *nh,  in set_ip_addr()  argument
372 	update_ip_l4_checksum(skb, nh, *addr, new_addr);  in set_ip_addr()
373 	csum_replace4(&nh->check, *addr, new_addr);  in set_ip_addr()
425 static void set_ipv6_fl(struct ipv6hdr *nh, u32 fl, u32 mask)  in set_ipv6_fl()  argument
428 	OVS_SET_MASKED(nh->flow_lbl[0], (u8)(fl >> 16), (u8)(mask >> 16));  in set_ipv6_fl()
429 	OVS_SET_MASKED(nh->flow_lbl[1], (u8)(fl >> 8), (u8)(mask >> 8));  in set_ipv6_fl()
430 	OVS_SET_MASKED(nh->flow_lbl[2], (u8)fl, (u8)mask);  in set_ipv6_fl()
433 static void set_ip_ttl(struct sk_buff *skb, struct iphdr *nh, u8 new_ttl,  in set_ip_ttl()  argument
436 	new_ttl = OVS_MASKED(nh->ttl, new_ttl, mask);  in set_ip_ttl()
438 	csum_replace2(&nh->check, htons(nh->ttl << 8), htons(new_ttl << 8));  in set_ip_ttl()
439 	nh->ttl = new_ttl;  in set_ip_ttl()
446 	struct iphdr *nh;  in set_ipv4()  local
455 	nh = ip_hdr(skb);  in set_ipv4()
462 		new_addr = OVS_MASKED(nh->saddr, key->ipv4_src, mask->ipv4_src);  in set_ipv4()
464 		if (unlikely(new_addr != nh->saddr)) {  in set_ipv4()
465 			set_ip_addr(skb, nh, &nh->saddr, new_addr);  in set_ipv4()
470 		new_addr = OVS_MASKED(nh->daddr, key->ipv4_dst, mask->ipv4_dst);  in set_ipv4()
472 		if (unlikely(new_addr != nh->daddr)) {  in set_ipv4()
473 			set_ip_addr(skb, nh, &nh->daddr, new_addr);  in set_ipv4()
478 		ipv4_change_dsfield(nh, ~mask->ipv4_tos, key->ipv4_tos);  in set_ipv4()
479 		flow_key->ip.tos = nh->tos;  in set_ipv4()
482 		set_ip_ttl(skb, nh, key->ipv4_ttl, mask->ipv4_ttl);  in set_ipv4()
483 		flow_key->ip.ttl = nh->ttl;  in set_ipv4()
498 	struct ipv6hdr *nh;  in set_ipv6()  local
506 	nh = ipv6_hdr(skb);  in set_ipv6()
513 		__be32 *saddr = (__be32 *)&nh->saddr;  in set_ipv6()
529 		__be32 *daddr = (__be32 *)&nh->daddr;  in set_ipv6()
535 			if (ipv6_ext_hdr(nh->nexthdr))  in set_ipv6()
548 		ipv6_change_dsfield(nh, ~mask->ipv6_tclass, key->ipv6_tclass);  in set_ipv6()
549 		flow_key->ip.tos = ipv6_get_dsfield(nh);  in set_ipv6()
552 		set_ipv6_fl(nh, ntohl(key->ipv6_label),  in set_ipv6()
555 		    *(__be32 *)nh & htonl(IPV6_FLOWINFO_FLOWLABEL);  in set_ipv6()
558 		OVS_SET_MASKED(nh->hop_limit, key->ipv6_hlimit,  in set_ipv6()
560 		flow_key->ip.ttl = nh->hop_limit;  in set_ipv6()
568 	struct nshhdr *nh;  in set_nsh()  local
586 	nh = nsh_hdr(skb);  in set_nsh()
587 	length = nsh_hdr_len(nh);  in set_nsh()
595 	nh = nsh_hdr(skb);  in set_nsh()
596 	skb_postpull_rcsum(skb, nh, length);  in set_nsh()
597 	flags = nsh_get_flags(nh);  in set_nsh()
600 	ttl = nsh_get_ttl(nh);  in set_nsh()
603 	nsh_set_flags_and_ttl(nh, flags, ttl);  in set_nsh()
604 	nh->path_hdr = OVS_MASKED(nh->path_hdr, key.base.path_hdr,  in set_nsh()
606 	flow_key->nsh.base.path_hdr = nh->path_hdr;  in set_nsh()
607 	switch (nh->mdtype) {  in set_nsh()
610 			nh->md1.context[i] =  in set_nsh()
611 			    OVS_MASKED(nh->md1.context[i], key.context[i],  in set_nsh()
614 		memcpy(flow_key->nsh.context, nh->md1.context,  in set_nsh()
615 		       sizeof(nh->md1.context));  in set_nsh()
624 	skb_postpush_rcsum(skb, nh, length);  in set_nsh()
1202 		struct ipv6hdr *nh;  in execute_dec_ttl()  local
1205 					  sizeof(*nh));  in execute_dec_ttl()
1209 		nh = ipv6_hdr(skb);  in execute_dec_ttl()
1211 		if (nh->hop_limit <= 1)  in execute_dec_ttl()
1214 		key->ip.ttl = --nh->hop_limit;  in execute_dec_ttl()
1216 		struct iphdr *nh;  in execute_dec_ttl()  local
1220 					  sizeof(*nh));  in execute_dec_ttl()
1224 		nh = ip_hdr(skb);  in execute_dec_ttl()
1225 		if (nh->ttl <= 1)  in execute_dec_ttl()
1228 		old_ttl = nh->ttl--;  in execute_dec_ttl()
1229 		csum_replace2(&nh->check, htons(old_ttl << 8),  in execute_dec_ttl()
1230 			      htons(nh->ttl << 8));  in execute_dec_ttl()
1231 		key->ip.ttl = nh->ttl;  in execute_dec_ttl()
1381 			struct nshhdr *nh = (struct nshhdr *)buffer;  in do_execute_actions()  local
1383 			err = nsh_hdr_from_nlattr(nla_data(a), nh,  in do_execute_actions()
1387 			err = push_nsh(skb, key, nh);  in do_execute_actions()