62 #define HASH(addr) (((__force u32)addr^((__force u32)addr>>4))&0xF)
105 	int ifindex = dev ? dev->ifindex : 0;  in ipip6_tunnel_lookup()
129 	t = rcu_dereference(sitn->tunnels_wc[0]);  in ipip6_tunnel_lookup()
140 	unsigned int h = 0;  in __ipip6_bucket()
141 	int prio = 0;  in __ipip6_bucket()
189 		ipv6_addr_set(&t->ip6rd.prefix, htonl(0x20020000), 0, 0, 0);  in ipip6_tunnel_clone_6rd()
190 		t->ip6rd.relay_prefix = 0;  in ipip6_tunnel_clone_6rd()
192 		t->ip6rd.relay_prefixlen = 0;  in ipip6_tunnel_clone_6rd()
216 	if (err < 0)  in ipip6_tunnel_create()
224 	return 0;  in ipip6_tunnel_create()
256 	if (parms->name[0]) {  in ipip6_tunnel_locate()
273 	if (ipip6_tunnel_create(dev) < 0)  in ipip6_tunnel_locate()
307 	unsigned int cmax, c = 0, ca, len;  in ipip6_tunnel_get_prl()
308 	int ret = 0;  in ipip6_tunnel_get_prl()
343 	c = 0;  in ipip6_tunnel_get_prl()
359 	ret = 0;  in ipip6_tunnel_get_prl()
372 	int err = 0;  in ipip6_tunnel_add_prl()
427 	int err = 0;  in ipip6_tunnel_del_prl()
446 			t->prl_count = 0;  in ipip6_tunnel_del_prl()
505 			ok = 0;  in isatap_chksrc()
517 		RCU_INIT_POINTER(sitn->tunnels_wc[0], NULL);  in ipip6_tunnel_uninit()
531 	unsigned int data_len = 0;  in ipip6_err()
539 		return 0;  in ipip6_err()
545 			return 0;  in ipip6_err()
556 			return 0;  in ipip6_err()
565 	sifindex = netif_is_l3_master(skb->dev) ? IPCB(skb)->iif : 0;  in ipip6_err()
574 		err = 0;  in ipip6_err()
580 		err = 0;  in ipip6_err()
584 	err = 0;  in ipip6_err()
589 	if (t->parms.iph.daddr == 0)  in ipip6_err()
592 	if (t->parms.iph.ttl == 0 && type == ICMP_TIME_EXCEEDED)  in ipip6_err()
607 	__be32 v4embed = 0;  in is_spoofed_6rd()
684 	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()
732 		return 0;  in ipip6_rcv()
739 	return 0;  in ipip6_rcv()
760 	sifindex = netif_is_l3_master(skb->dev) ? IPCB(skb)->iif : 0;  in sit_tunnel_rcv()
769 		    tunnel->parms.iph.protocol != 0)  in sit_tunnel_rcv()
780 		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 			   0, dst, tiph->saddr, 0, 0,  in ipip6_tunnel_xmit()
983 			df = 0;  in ipip6_tunnel_xmit()
990 			icmpv6_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, &protocol, &fl4) < 0) {  in ipip6_tunnel_xmit()
1113 							  0, 0,  in ipip6_tunnel_bind_dev()
1178 			       htonl(0xffffffffUL <<  in ipip6_tunnel_update_6rd()
1181 		relay_prefix = 0;  in ipip6_tunnel_update_6rd()
1191 	return 0;  in ipip6_tunnel_update_6rd()
1204 		t = ipip6_tunnel_locate(t->net, &p, 0);  in ipip6_tunnel_get6rd()
1215 	return 0;  in ipip6_tunnel_get6rd()
1232 		if (err < 0)  in ipip6_tunnel_6rdctl()
1236 	return 0;  in ipip6_tunnel_6rdctl()
1248 		ipproto == 0;  in ipip6_valid_ip_proto()
1265 	return 0;  in __ipip6_tunnel_ioctl_validate()
1274 		t = ipip6_tunnel_locate(t->net, p, 0);  in ipip6_tunnel_get()
1278 	return 0;  in ipip6_tunnel_get()
1294 	return 0;  in ipip6_tunnel_add()
1307 	t = ipip6_tunnel_locate(t->net, p, 0);  in ipip6_tunnel_change()
1325 	return 0;  in ipip6_tunnel_change()
1337 		t = ipip6_tunnel_locate(t->net, p, 0);  in ipip6_tunnel_del()
1345 	return 0;  in ipip6_tunnel_del()
1460 	return 0;  in ipip6_tunnel_init()
1476 	rcu_assign_pointer(sitn->tunnels_wc[0], tunnel);  in ipip6_fb_tunnel_init()
1485 		return 0;  in ipip6_validate()
1491 	return 0;  in ipip6_validate()
1498 	memset(parms, 0, sizeof(*parms));  in ipip6_netlink_parms()
1545 	memset(ipencap, 0, sizeof(*ipencap));  in ipip6_netlink_encap_parms()
1579 	memset(ip6rd, 0, sizeof(*ip6rd));  in ipip6_netlink_6rd_parms()
1626 		if (err < 0)  in ipip6_newlink()
1632 	if (ipip6_tunnel_locate(net, &nt->parms, 0))  in ipip6_newlink()
1636 	if (err < 0)  in ipip6_newlink()
1675 		if (err < 0)  in ipip6_changelink()
1685 	t = ipip6_tunnel_locate(net, &p, 0);  in ipip6_changelink()
1700 	return 0;  in ipip6_changelink()
1742 		0;  in ipip6_get_size()
1784 	return 0;  in ipip6_fill_info()
1869 		for (h = 0; h < IP6_SIT_HASH_SIZE; h++) {  in sit_destroy_tunnels()
1892 	sitn->tunnels[0] = sitn->tunnels_wc;  in sit_init_net()
1898 		return 0;  in sit_init_net()
1924 	return 0;  in sit_init_net()
1973 	if (err < 0)  in sit_init()
1976 	if (err < 0) {  in sit_init()
1981 	if (err < 0) {  in sit_init()
1987 	if (err < 0) {  in sit_init()
1993 	if (err < 0)  in sit_init()