300 	struct ip_tunnel *tunnel;  in __ip_tunnel_create()  local
325 	tunnel = netdev_priv(dev);  in __ip_tunnel_create()
326 	tunnel->parms = *parms;  in __ip_tunnel_create()
327 	tunnel->net = net;  in __ip_tunnel_create()
358 	struct ip_tunnel *tunnel = netdev_priv(dev);  in ip_tunnel_bind_dev()  local
362 	int t_hlen = tunnel->hlen + sizeof(struct iphdr);  in ip_tunnel_bind_dev()
364 	iph = &tunnel->parms.iph;  in ip_tunnel_bind_dev()
372 				 iph->saddr, tunnel->parms.o_key,  in ip_tunnel_bind_dev()
373 				 RT_TOS(iph->tos), tunnel->parms.link);  in ip_tunnel_bind_dev()
374 		rt = ip_route_output_key(tunnel->net, &fl4);  in ip_tunnel_bind_dev()
378 			tunnel_dst_set(tunnel, &rt->dst, fl4.saddr);  in ip_tunnel_bind_dev()
385 	if (!tdev && tunnel->parms.link)  in ip_tunnel_bind_dev()
386 		tdev = __dev_get_by_index(tunnel->net, tunnel->parms.link);  in ip_tunnel_bind_dev()
421 int ip_tunnel_rcv(struct ip_tunnel *tunnel, struct sk_buff *skb,  in ip_tunnel_rcv()  argument
430 		tunnel->dev->stats.multicast++;  in ip_tunnel_rcv()
435 	if ((!(tpi->flags&TUNNEL_CSUM) &&  (tunnel->parms.i_flags&TUNNEL_CSUM)) ||  in ip_tunnel_rcv()
436 	     ((tpi->flags&TUNNEL_CSUM) && !(tunnel->parms.i_flags&TUNNEL_CSUM))) {  in ip_tunnel_rcv()
437 		tunnel->dev->stats.rx_crc_errors++;  in ip_tunnel_rcv()
438 		tunnel->dev->stats.rx_errors++;  in ip_tunnel_rcv()
442 	if (tunnel->parms.i_flags&TUNNEL_SEQ) {  in ip_tunnel_rcv()
444 		    (tunnel->i_seqno && (s32)(ntohl(tpi->seq) - tunnel->i_seqno) < 0)) {  in ip_tunnel_rcv()
445 			tunnel->dev->stats.rx_fifo_errors++;  in ip_tunnel_rcv()
446 			tunnel->dev->stats.rx_errors++;  in ip_tunnel_rcv()
449 		tunnel->i_seqno = ntohl(tpi->seq) + 1;  in ip_tunnel_rcv()
460 			++tunnel->dev->stats.rx_frame_errors;  in ip_tunnel_rcv()
461 			++tunnel->dev->stats.rx_errors;  in ip_tunnel_rcv()
466 	tstats = this_cpu_ptr(tunnel->dev->tstats);  in ip_tunnel_rcv()
472 	skb_scrub_packet(skb, !net_eq(tunnel->net, dev_net(tunnel->dev)));  in ip_tunnel_rcv()
474 	if (tunnel->dev->type == ARPHRD_ETHER) {  in ip_tunnel_rcv()
475 		skb->protocol = eth_type_trans(skb, tunnel->dev);  in ip_tunnel_rcv()
478 		skb->dev = tunnel->dev;  in ip_tunnel_rcv()
481 	gro_cells_receive(&tunnel->gro_cells, skb);  in ip_tunnel_rcv()
592 	struct ip_tunnel *tunnel = netdev_priv(dev);  in tnl_update_pmtu()  local
593 	int pkt_size = skb->len - tunnel->hlen - dev->hard_header_len;  in tnl_update_pmtu()
598 					- sizeof(struct iphdr) - tunnel->hlen;  in tnl_update_pmtu()
620 			if ((tunnel->parms.iph.daddr &&  in tnl_update_pmtu()
621 			    !ipv4_is_multicast(tunnel->parms.iph.daddr)) ||  in tnl_update_pmtu()
641 	struct ip_tunnel *tunnel = netdev_priv(dev);  in ip_tunnel_xmit()  local
653 	connected = (tunnel->parms.iph.daddr != 0);  in ip_tunnel_xmit()
718 			 tunnel->parms.o_key, RT_TOS(tos), tunnel->parms.link);  in ip_tunnel_xmit()
720 	if (ip_tunnel_encap(skb, tunnel, &protocol, &fl4) < 0)  in ip_tunnel_xmit()
723 	rt = connected ? tunnel_rtable_get(tunnel, 0, &fl4.saddr) : NULL;  in ip_tunnel_xmit()
726 		rt = ip_route_output_key(tunnel->net, &fl4);  in ip_tunnel_xmit()
733 			tunnel_dst_set(tunnel, &rt->dst, fl4.saddr);  in ip_tunnel_xmit()
747 	if (tunnel->err_count > 0) {  in ip_tunnel_xmit()
749 				tunnel->err_time + IPTUNNEL_ERR_TIMEO)) {  in ip_tunnel_xmit()
750 			tunnel->err_count--;  in ip_tunnel_xmit()
755 			tunnel->err_count = 0;  in ip_tunnel_xmit()
776 			+ rt->dst.header_len + ip_encap_hlen(&tunnel->encap);  in ip_tunnel_xmit()
788 			    tos, ttl, df, !net_eq(tunnel->net, dev_net(dev)));  in ip_tunnel_xmit()
941 	struct ip_tunnel *tunnel = netdev_priv(dev);  in ip_tunnel_change_mtu()  local
942 	int t_hlen = tunnel->hlen + sizeof(struct iphdr);  in ip_tunnel_change_mtu()
954 	struct ip_tunnel *tunnel = netdev_priv(dev);  in ip_tunnel_dev_free()  local
956 	gro_cells_destroy(&tunnel->gro_cells);  in ip_tunnel_dev_free()
957 	free_percpu(tunnel->dst_cache);  in ip_tunnel_dev_free()
964 	struct ip_tunnel *tunnel = netdev_priv(dev);  in ip_tunnel_dellink()  local
967 	itn = net_generic(tunnel->net, tunnel->ip_tnl_net_id);  in ip_tunnel_dellink()
978 	struct ip_tunnel *tunnel = netdev_priv(dev);  in ip_tunnel_get_link_net()  local
980 	return tunnel->net;  in ip_tunnel_get_link_net()
986 	struct ip_tunnel *tunnel = netdev_priv(dev);  in ip_tunnel_get_iflink()  local
988 	return tunnel->parms.link;  in ip_tunnel_get_iflink()
1102 	struct ip_tunnel *tunnel = netdev_priv(dev);  in ip_tunnel_changelink()  local
1103 	struct net *net = tunnel->net;  in ip_tunnel_changelink()
1104 	struct ip_tunnel_net *itn = net_generic(net, tunnel->ip_tnl_net_id);  in ip_tunnel_changelink()
1115 		t = tunnel;  in ip_tunnel_changelink()
1138 	struct ip_tunnel *tunnel = netdev_priv(dev);  in ip_tunnel_init()  local
1139 	struct iphdr *iph = &tunnel->parms.iph;  in ip_tunnel_init()
1147 	tunnel->dst_cache = alloc_percpu(struct ip_tunnel_dst);  in ip_tunnel_init()
1148 	if (!tunnel->dst_cache) {  in ip_tunnel_init()
1153 	err = gro_cells_init(&tunnel->gro_cells, dev);  in ip_tunnel_init()
1155 		free_percpu(tunnel->dst_cache);  in ip_tunnel_init()
1160 	tunnel->dev = dev;  in ip_tunnel_init()
1161 	tunnel->net = dev_net(dev);  in ip_tunnel_init()
1162 	strcpy(tunnel->parms.name, dev->name);  in ip_tunnel_init()
1172 	struct ip_tunnel *tunnel = netdev_priv(dev);  in ip_tunnel_uninit()  local
1173 	struct net *net = tunnel->net;  in ip_tunnel_uninit()
1176 	itn = net_generic(net, tunnel->ip_tnl_net_id);  in ip_tunnel_uninit()
1181 	ip_tunnel_dst_reset_all(tunnel);  in ip_tunnel_uninit()
1188 	struct ip_tunnel *tunnel = netdev_priv(dev);  in ip_tunnel_setup()  local
1189 	tunnel->ip_tnl_net_id = net_id;  in ip_tunnel_setup()