22 struct fou {  struct
49 static inline struct fou *fou_from_sock(struct sock *sk)  in fou_from_sock()  argument
54 static int fou_recv_pull(struct sk_buff *skb, struct fou *fou, size_t len)  in fou_recv_pull()  argument
59 	if (fou->family == AF_INET)  in fou_recv_pull()
73 	struct fou *fou = fou_from_sock(sk);  in fou_udp_recv()  local
75 	if (!fou)  in fou_udp_recv()
78 	if (fou_recv_pull(skb, fou, sizeof(struct udphdr)))  in fou_udp_recv()
81 	return -fou->protocol;  in fou_udp_recv()
120 	struct fou *fou = fou_from_sock(sk);  in gue_udp_recv()  local
127 	if (!fou)  in gue_udp_recv()
156 		if (fou_recv_pull(skb, fou, sizeof(struct udphdr)))  in gue_udp_recv()
180 	if (fou->family == AF_INET)  in gue_udp_recv()
201 					     !!(fou->flags &  in gue_udp_recv()
323 	struct fou *fou = fou_from_sock(sk);  in gue_gro_receive()  local
388 						 !!(fou->flags &  in gue_gro_receive()
503 static bool fou_cfg_cmp(struct fou *fou, struct fou_cfg *cfg)  in fou_cfg_cmp()  argument
505 	struct sock *sk = fou->sock->sk;  in fou_cfg_cmp()
508 	if (fou->family != udp_cfg->family ||  in fou_cfg_cmp()
509 	    fou->port != udp_cfg->local_udp_port ||  in fou_cfg_cmp()
514 	if (fou->family == AF_INET) {  in fou_cfg_cmp()
533 static int fou_add_to_port_list(struct net *net, struct fou *fou,  in fou_add_to_port_list()  argument
537 	struct fou *fout;  in fou_add_to_port_list()
547 	list_add(&fou->list, &fn->fou_list);  in fou_add_to_port_list()
553 static void fou_release(struct fou *fou)  in fou_release()  argument
555 	struct socket *sock = fou->sock;  in fou_release()
557 	list_del(&fou->list);  in fou_release()
560 	kfree_rcu(fou, rcu);  in fou_release()
567 	struct fou *fou = NULL;  in fou_create()  local
578 	fou = kzalloc(sizeof(*fou), GFP_KERNEL);  in fou_create()
579 	if (!fou) {  in fou_create()
586 	fou->port = cfg->udp_config.local_udp_port;  in fou_create()
587 	fou->family = cfg->udp_config.family;  in fou_create()
588 	fou->flags = cfg->flags;  in fou_create()
589 	fou->type = cfg->type;  in fou_create()
590 	fou->sock = sock;  in fou_create()
594 	tunnel_cfg.sk_user_data = fou;  in fou_create()
603 		fou->protocol = cfg->protocol;  in fou_create()
619 	err = fou_add_to_port_list(net, fou, cfg);  in fou_create()
629 	kfree(fou);  in fou_create()
640 	struct fou *fou;  in fou_destroy()  local
643 	list_for_each_entry(fou, &fn->fou_list, list) {  in fou_destroy()
644 		if (fou_cfg_cmp(fou, cfg)) {  in fou_destroy()
645 			fou_release(fou);  in fou_destroy()
788 static int fou_fill_info(struct fou *fou, struct sk_buff *msg)  in fou_fill_info()  argument
790 	struct sock *sk = fou->sock->sk;  in fou_fill_info()
792 	if (nla_put_u8(msg, FOU_ATTR_AF, fou->sock->sk->sk_family) ||  in fou_fill_info()
793 	    nla_put_be16(msg, FOU_ATTR_PORT, fou->port) ||  in fou_fill_info()
795 	    nla_put_u8(msg, FOU_ATTR_IPPROTO, fou->protocol) ||  in fou_fill_info()
796 	    nla_put_u8(msg, FOU_ATTR_TYPE, fou->type) ||  in fou_fill_info()
800 	if (fou->flags & FOU_F_REMCSUM_NOPARTIAL)  in fou_fill_info()
804 	if (fou->sock->sk->sk_family == AF_INET) {  in fou_fill_info()
824 static int fou_dump_info(struct fou *fou, u32 portid, u32 seq,  in fou_dump_info()  argument
833 	if (fou_fill_info(fou, skb) < 0)  in fou_dump_info()
850 	struct fou *fout;  in fou_nl_cmd_get_port()
895 	struct fou *fout;  in fou_nl_dump()
1257 	struct fou *fou, *next;  in fou_exit_net()  local
1261 	list_for_each_entry_safe(fou, next, &fn->fou_list, list)  in fou_exit_net()
1262 		fou_release(fou);  in fou_exit_net()