355 	struct iphdr *iph;  in br_ip4_multicast_alloc_query()  local
357 	skb = netdev_alloc_skb_ip_align(br->dev, sizeof(*eth) + sizeof(*iph) +  in br_ip4_multicast_alloc_query()
378 	iph = ip_hdr(skb);  in br_ip4_multicast_alloc_query()
380 	iph->version = 4;  in br_ip4_multicast_alloc_query()
381 	iph->ihl = 6;  in br_ip4_multicast_alloc_query()
382 	iph->tos = 0xc0;  in br_ip4_multicast_alloc_query()
383 	iph->tot_len = htons(sizeof(*iph) + sizeof(*ih) + 4);  in br_ip4_multicast_alloc_query()
384 	iph->id = 0;  in br_ip4_multicast_alloc_query()
385 	iph->frag_off = htons(IP_DF);  in br_ip4_multicast_alloc_query()
386 	iph->ttl = 1;  in br_ip4_multicast_alloc_query()
387 	iph->protocol = IPPROTO_IGMP;  in br_ip4_multicast_alloc_query()
388 	iph->saddr = br->multicast_query_use_ifaddr ?  in br_ip4_multicast_alloc_query()
390 	iph->daddr = htonl(INADDR_ALLHOSTS_GROUP);  in br_ip4_multicast_alloc_query()
391 	((u8 *)&iph[1])[0] = IPOPT_RA;  in br_ip4_multicast_alloc_query()
392 	((u8 *)&iph[1])[1] = 4;  in br_ip4_multicast_alloc_query()
393 	((u8 *)&iph[1])[2] = 0;  in br_ip4_multicast_alloc_query()
394 	((u8 *)&iph[1])[3] = 0;  in br_ip4_multicast_alloc_query()
395 	ip_send_check(iph);  in br_ip4_multicast_alloc_query()
1224 	const struct iphdr *iph = ip_hdr(skb);  in br_ip4_multicast_query()  local
1267 	if (!group && iph->daddr != htonl(INADDR_ALLHOSTS_GROUP)) {  in br_ip4_multicast_query()
1274 		saddr.u.ip4 = iph->saddr;  in br_ip4_multicast_query()
1560 	const struct iphdr *iph;  in br_multicast_ipv4_rcv()  local
1567 	if (!pskb_may_pull(skb, sizeof(*iph)))  in br_multicast_ipv4_rcv()
1570 	iph = ip_hdr(skb);  in br_multicast_ipv4_rcv()
1572 	if (iph->ihl < 5 || iph->version != 4)  in br_multicast_ipv4_rcv()
1578 	iph = ip_hdr(skb);  in br_multicast_ipv4_rcv()
1580 	if (unlikely(ip_fast_csum((u8 *)iph, iph->ihl)))  in br_multicast_ipv4_rcv()
1583 	if (iph->protocol != IPPROTO_IGMP) {  in br_multicast_ipv4_rcv()
1584 		if (!ipv4_is_local_multicast(iph->daddr))  in br_multicast_ipv4_rcv()
1589 	len = ntohs(iph->tot_len);  in br_multicast_ipv4_rcv()