64 #define HASH(addr) (((__force u32)addr^((__force u32)addr>>4))&0xF)
107 	int ifindex = dev ? dev->ifindex : 0;  in ipip6_tunnel_lookup()
131 	t = rcu_dereference(sitn->tunnels_wc[0]);  in ipip6_tunnel_lookup()
142 	unsigned int h = 0;  in __ipip6_bucket()
143 	int prio = 0;  in __ipip6_bucket()
191 		ipv6_addr_set(&t->ip6rd.prefix, htonl(0x20020000), 0, 0, 0);  in ipip6_tunnel_clone_6rd()
192 		t->ip6rd.relay_prefix = 0;  in ipip6_tunnel_clone_6rd()
194 		t->ip6rd.relay_prefixlen = 0;  in ipip6_tunnel_clone_6rd()
217 	if (err < 0)  in ipip6_tunnel_create()
223 	return 0;  in ipip6_tunnel_create()
256 	if (parms->name[0]) {  in ipip6_tunnel_locate()
274 	if (ipip6_tunnel_create(dev) < 0)  in ipip6_tunnel_locate()
277 	if (!parms->name[0])  in ipip6_tunnel_locate()
310 	unsigned int cmax, c = 0, ca, len;  in ipip6_tunnel_get_prl()
311 	int ret = 0;  in ipip6_tunnel_get_prl()
361 	ret = 0;  in ipip6_tunnel_get_prl()
374 	int err = 0;  in ipip6_tunnel_add_prl()
429 	int err = 0;  in ipip6_tunnel_del_prl()
448 			t->prl_count = 0;  in ipip6_tunnel_del_prl()
507 			ok = 0;  in isatap_chksrc()
519 		RCU_INIT_POINTER(sitn->tunnels_wc[0], NULL);  in ipip6_tunnel_uninit()
533 	unsigned int data_len = 0;  in ipip6_err()
541 		return 0;  in ipip6_err()
547 			return 0;  in ipip6_err()
558 			return 0;  in ipip6_err()
567 	sifindex = netif_is_l3_master(skb->dev) ? IPCB(skb)->iif : 0;  in ipip6_err()
576 		err = 0;  in ipip6_err()
582 		err = 0;  in ipip6_err()
586 	err = 0;  in ipip6_err()
591 	if (t->parms.iph.daddr == 0)  in ipip6_err()
594 	if (t->parms.iph.ttl == 0 && type == ICMP_TIME_EXCEEDED)  in ipip6_err()
609 	__be32 v4embed = 0;  in is_spoofed_6rd()
686 	sifindex = netif_is_l3_master(skb->dev) ? IPCB(skb)->iif : 0;  in ipip6_rcv()
691 		    tunnel->parms.iph.protocol != 0)  in ipip6_rcv()
696 		IPCB(skb)->flags = 0;  in ipip6_rcv()
704 		if (iptunnel_pull_header(skb, 0, htons(ETH_P_IPV6),  in ipip6_rcv()
730 		return 0;  in ipip6_rcv()
737 	return 0;  in ipip6_rcv()
758 	sifindex = netif_is_l3_master(skb->dev) ? IPCB(skb)->iif : 0;  in sit_tunnel_rcv()
767 		    tunnel->parms.iph.protocol != 0)  in sit_tunnel_rcv()
778 		if (iptunnel_pull_header(skb, 0, tpi->proto, false))  in sit_tunnel_rcv()
789 	return 0;  in sit_tunnel_rcv()
819 		pbi0 = tunnel->ip6rd.prefixlen & 0x1f;  in check_6rd()
823 		    tunnel->ip6rd.relay_prefixlen : 0;  in check_6rd()
826 		if (pbi1 > 0)  in check_6rd()
834 	if (v6dst->s6_addr16[0] == htons(0x2002)) {  in check_6rd()
846 	__be32 dst = 0;  in try_6rd()
929 		if ((addr_type & IPV6_ADDR_COMPATv4) != 0)  in ipip6_tunnel_xmit()
941 			   IPPROTO_IPV6, 0, dst, tiph->saddr, 0, 0,  in ipip6_tunnel_xmit()
983 			df = 0;  in ipip6_tunnel_xmit()
990 			icmpv6_ndo_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);  in ipip6_tunnel_xmit()
996 	if (tunnel->err_count > 0) {  in ipip6_tunnel_xmit()
1002 			tunnel->err_count = 0;  in ipip6_tunnel_xmit()
1011 	    (skb_cloned(skb) && !skb_clone_writable(skb, 0))) {  in ipip6_tunnel_xmit()
1026 	if (ttl == 0)  in ipip6_tunnel_xmit()
1030 	if (ip_tunnel_encap(skb, &tunnel->encap, &protocol, &fl4) < 0) {  in ipip6_tunnel_xmit()
1038 		      df, !net_eq(tunnel->net, dev_net(dev)), 0);  in ipip6_tunnel_xmit()
1114 							  0, 0,  in ipip6_tunnel_bind_dev()
1183 			       htonl(0xffffffffUL <<  in ipip6_tunnel_update_6rd()
1186 		relay_prefix = 0;  in ipip6_tunnel_update_6rd()
1196 	return 0;  in ipip6_tunnel_update_6rd()
1209 		t = ipip6_tunnel_locate(t->net, &p, 0);  in ipip6_tunnel_get6rd()
1220 	return 0;  in ipip6_tunnel_get6rd()
1238 		if (err < 0)  in ipip6_tunnel_6rdctl()
1242 	return 0;  in ipip6_tunnel_6rdctl()
1254 		ipproto == 0;  in ipip6_valid_ip_proto()
1271 	return 0;  in __ipip6_tunnel_ioctl_validate()
1280 		t = ipip6_tunnel_locate(t->net, p, 0);  in ipip6_tunnel_get()
1284 	return 0;  in ipip6_tunnel_get()
1300 	return 0;  in ipip6_tunnel_add()
1313 	t = ipip6_tunnel_locate(t->net, p, 0);  in ipip6_tunnel_change()
1331 	return 0;  in ipip6_tunnel_change()
1343 		t = ipip6_tunnel_locate(t->net, p, 0);  in ipip6_tunnel_del()
1351 	return 0;  in ipip6_tunnel_del()
1463 	return 0;  in ipip6_tunnel_init()
1478 	rcu_assign_pointer(sitn->tunnels_wc[0], tunnel);  in ipip6_fb_tunnel_init()
1487 		return 0;  in ipip6_validate()
1493 	return 0;  in ipip6_validate()
1500 	memset(parms, 0, sizeof(*parms));  in ipip6_netlink_parms()
1522 	memset(ip6rd, 0, sizeof(*ip6rd));  in ipip6_netlink_6rd_parms()
1573 		if (err < 0)  in ipip6_newlink()
1579 	if (ipip6_tunnel_locate(net, &nt->parms, 0))  in ipip6_newlink()
1583 	if (err < 0)  in ipip6_newlink()
1597 		if (err < 0)  in ipip6_newlink()
1625 		if (err < 0)  in ipip6_changelink()
1635 	t = ipip6_tunnel_locate(net, &p, 0);  in ipip6_changelink()
1650 	return 0;  in ipip6_changelink()
1692 		0;  in ipip6_get_size()
1735 	return 0;  in ipip6_fill_info()
1817 	for (prio = 0; prio < 4; prio++) {  in sit_exit_rtnl_net()
1819 		for (h = 0; h < (prio ? IP6_SIT_HASH_SIZE : 1); h++) {  in sit_exit_rtnl_net()
1842 	sitn->tunnels[0] = sitn->tunnels_wc;  in sit_init_net()
1848 		return 0;  in sit_init_net()
1875 	return 0;  in sit_init_net()
1910 	if (err < 0)  in sit_init()
1913 	if (err < 0) {  in sit_init()
1918 	if (err < 0) {  in sit_init()
1924 	if (err < 0) {  in sit_init()
1930 	if (err < 0)  in sit_init()