20 struct fou {  struct
47 static inline struct fou *fou_from_sock(struct sock *sk)  in fou_from_sock()  argument
52 static int fou_recv_pull(struct sk_buff *skb, struct fou *fou, size_t len)  in fou_recv_pull()  argument
57 	if (fou->family == AF_INET)  in fou_recv_pull()
71 	struct fou *fou = fou_from_sock(sk);  in fou_udp_recv()  local
73 	if (!fou)  in fou_udp_recv()
76 	if (fou_recv_pull(skb, fou, sizeof(struct udphdr)))  in fou_udp_recv()
79 	return -fou->protocol;  in fou_udp_recv()
118 	struct fou *fou = fou_from_sock(sk);  in gue_udp_recv()  local
124 	if (!fou)  in gue_udp_recv()
153 		if (fou_recv_pull(skb, fou, sizeof(struct udphdr)))  in gue_udp_recv()
179 	if (fou->family == AF_INET)  in gue_udp_recv()
200 					     !!(fou->flags &  in gue_udp_recv()
321 	struct fou *fou = fou_from_sock(sk);  in gue_gro_receive()  local
386 						 !!(fou->flags &  in gue_gro_receive()
501 static int fou_add_to_port_list(struct net *net, struct fou *fou)  in fou_add_to_port_list()  argument
504 	struct fou *fout;  in fou_add_to_port_list()
508 		if (fou->port == fout->port &&  in fou_add_to_port_list()
509 		    fou->family == fout->family) {  in fou_add_to_port_list()
515 	list_add(&fou->list, &fn->fou_list);  in fou_add_to_port_list()
521 static void fou_release(struct fou *fou)  in fou_release()  argument
523 	struct socket *sock = fou->sock;  in fou_release()
525 	list_del(&fou->list);  in fou_release()
528 	kfree_rcu(fou, rcu);  in fou_release()
535 	struct fou *fou = NULL;  in fou_create()  local
546 	fou = kzalloc(sizeof(*fou), GFP_KERNEL);  in fou_create()
547 	if (!fou) {  in fou_create()
554 	fou->port = cfg->udp_config.local_udp_port;  in fou_create()
555 	fou->family = cfg->udp_config.family;  in fou_create()
556 	fou->flags = cfg->flags;  in fou_create()
557 	fou->type = cfg->type;  in fou_create()
558 	fou->sock = sock;  in fou_create()
562 	tunnel_cfg.sk_user_data = fou;  in fou_create()
571 		fou->protocol = cfg->protocol;  in fou_create()
587 	err = fou_add_to_port_list(net, fou);  in fou_create()
597 	kfree(fou);  in fou_create()
610 	struct fou *fou;  in fou_destroy()  local
613 	list_for_each_entry(fou, &fn->fou_list, list) {  in fou_destroy()
614 		if (fou->port == port && fou->family == family) {  in fou_destroy()
615 			fou_release(fou);  in fou_destroy()
702 static int fou_fill_info(struct fou *fou, struct sk_buff *msg)  in fou_fill_info()  argument
704 	if (nla_put_u8(msg, FOU_ATTR_AF, fou->sock->sk->sk_family) ||  in fou_fill_info()
705 	    nla_put_be16(msg, FOU_ATTR_PORT, fou->port) ||  in fou_fill_info()
706 	    nla_put_u8(msg, FOU_ATTR_IPPROTO, fou->protocol) ||  in fou_fill_info()
707 	    nla_put_u8(msg, FOU_ATTR_TYPE, fou->type))  in fou_fill_info()
710 	if (fou->flags & FOU_F_REMCSUM_NOPARTIAL)  in fou_fill_info()
716 static int fou_dump_info(struct fou *fou, u32 portid, u32 seq,  in fou_dump_info()  argument
725 	if (fou_fill_info(fou, skb) < 0)  in fou_dump_info()
742 	struct fou *fout;  in fou_nl_cmd_get_port()
787 	struct fou *fout;  in fou_nl_dump()
1068 	struct fou *fou, *next;  in fou_exit_net()  local
1072 	list_for_each_entry_safe(fou, next, &fn->fou_list, list)  in fou_exit_net()
1073 		fou_release(fou);  in fou_exit_net()