156 	struct udp_bearer *ub;  in tipc_udp_send_msg()  local
168 	ub = rcu_dereference_rtnl(b->media_ptr);  in tipc_udp_send_msg()
169 	if (!ub) {  in tipc_udp_send_msg()
186 		err = udp_tunnel_xmit_skb(rt, ub->ubsock->sk, skb,  in tipc_udp_send_msg()
199 			.flowi6_oif = ub->ifindex,  in tipc_udp_send_msg()
204 		err = ipv6_stub->ipv6_dst_lookup(net, ub->ubsock->sk, &ndst,  in tipc_udp_send_msg()
209 		err = udp_tunnel6_xmit_skb(ndst, ub->ubsock->sk, skb,  in tipc_udp_send_msg()
225 	struct udp_bearer *ub;  in tipc_udp_recv()  local
232 	ub = rcu_dereference_sk_user_data(sk);  in tipc_udp_recv()
233 	if (!ub) {  in tipc_udp_recv()
241 	b = rcu_dereference_rtnl(ub->bearer);  in tipc_udp_recv()
253 static int enable_mcast(struct udp_bearer *ub, struct udp_media_addr *remote)  in enable_mcast()  argument
257 	struct sock *sk = ub->ubsock->sk;  in enable_mcast()
263 		mreqn.imr_ifindex = ub->ifindex;  in enable_mcast()
269 		err = ipv6_stub->ipv6_sock_mc_join(sk, ub->ifindex,  in enable_mcast()
283 static int parse_options(struct nlattr *attrs[], struct udp_bearer *ub,  in parse_options()  argument
326 		ub->ifindex = ip6->sin6_scope_id;  in parse_options()
351 	struct udp_bearer *ub;  in tipc_udp_enable()  local
357 	ub = kzalloc(sizeof(*ub), GFP_ATOMIC);  in tipc_udp_enable()
358 	if (!ub)  in tipc_udp_enable()
363 	err = parse_options(attrs, ub, &local, remote);  in tipc_udp_enable()
369 	rcu_assign_pointer(b->media_ptr, ub);  in tipc_udp_enable()
370 	rcu_assign_pointer(ub->bearer, b);  in tipc_udp_enable()
383 		ub->ifindex = dev->ifindex;  in tipc_udp_enable()
399 	err = udp_sock_create(net, &udp_conf, &ub->ubsock);  in tipc_udp_enable()
402 	tuncfg.sk_user_data = ub;  in tipc_udp_enable()
406 	setup_udp_tunnel_sock(net, ub->ubsock, &tuncfg);  in tipc_udp_enable()
408 	if (enable_mcast(ub, remote))  in tipc_udp_enable()
412 	kfree(ub);  in tipc_udp_enable()
419 	struct udp_bearer *ub = container_of(work, struct udp_bearer, work);  in cleanup_bearer()  local
421 	if (ub->ubsock)  in cleanup_bearer()
422 		udp_tunnel_sock_release(ub->ubsock);  in cleanup_bearer()
424 	kfree(ub);  in cleanup_bearer()
430 	struct udp_bearer *ub;  in tipc_udp_disable()  local
432 	ub = rcu_dereference_rtnl(b->media_ptr);  in tipc_udp_disable()
433 	if (!ub) {  in tipc_udp_disable()
437 	if (ub->ubsock)  in tipc_udp_disable()
438 		sock_set_flag(ub->ubsock->sk, SOCK_DEAD);  in tipc_udp_disable()
439 	RCU_INIT_POINTER(ub->bearer, NULL);  in tipc_udp_disable()
442 	INIT_WORK(&ub->work, cleanup_bearer);  in tipc_udp_disable()
443 	schedule_work(&ub->work);  in tipc_udp_disable()