19 struct fou {  struct
46 static inline struct fou *fou_from_sock(struct sock *sk)  in fou_from_sock()  argument
66 	struct fou *fou = fou_from_sock(sk);  in fou_udp_recv()  local
68 	if (!fou)  in fou_udp_recv()
73 	return -fou->protocol;  in fou_udp_recv()
104 	struct fou *fou = fou_from_sock(sk);  in gue_udp_recv()  local
110 	if (!fou)  in gue_udp_recv()
152 					     !!(fou->flags &  in gue_udp_recv()
267 	struct fou *fou = container_of(uoff, struct fou, udp_offloads);  in gue_gro_receive()  local
313 						 !!(fou->flags &  in gue_gro_receive()
396 static int fou_add_to_port_list(struct net *net, struct fou *fou)  in fou_add_to_port_list()  argument
399 	struct fou *fout;  in fou_add_to_port_list()
403 		if (fou->port == fout->port) {  in fou_add_to_port_list()
409 	list_add(&fou->list, &fn->fou_list);  in fou_add_to_port_list()
415 static void fou_release(struct fou *fou)  in fou_release()  argument
417 	struct socket *sock = fou->sock;  in fou_release()
421 		udp_del_offload(&fou->udp_offloads);  in fou_release()
422 	list_del(&fou->list);  in fou_release()
425 	kfree_rcu(fou, rcu);  in fou_release()
428 static int fou_encap_init(struct sock *sk, struct fou *fou, struct fou_cfg *cfg)  in fou_encap_init()  argument
431 	fou->protocol = cfg->protocol;  in fou_encap_init()
432 	fou->udp_offloads.callbacks.gro_receive = fou_gro_receive;  in fou_encap_init()
433 	fou->udp_offloads.callbacks.gro_complete = fou_gro_complete;  in fou_encap_init()
434 	fou->udp_offloads.port = cfg->udp_config.local_udp_port;  in fou_encap_init()
435 	fou->udp_offloads.ipproto = cfg->protocol;  in fou_encap_init()
440 static int gue_encap_init(struct sock *sk, struct fou *fou, struct fou_cfg *cfg)  in gue_encap_init()  argument
443 	fou->udp_offloads.callbacks.gro_receive = gue_gro_receive;  in gue_encap_init()
444 	fou->udp_offloads.callbacks.gro_complete = gue_gro_complete;  in gue_encap_init()
445 	fou->udp_offloads.port = cfg->udp_config.local_udp_port;  in gue_encap_init()
454 	struct fou *fou = NULL;  in fou_create()  local
464 	fou = kzalloc(sizeof(*fou), GFP_KERNEL);  in fou_create()
465 	if (!fou) {  in fou_create()
472 	fou->flags = cfg->flags;  in fou_create()
473 	fou->port = cfg->udp_config.local_udp_port;  in fou_create()
478 		err = fou_encap_init(sk, fou, cfg);  in fou_create()
483 		err = gue_encap_init(sk, fou, cfg);  in fou_create()
492 	fou->type = cfg->type;  in fou_create()
497 	sk->sk_user_data = fou;  in fou_create()
498 	fou->sock = sock;  in fou_create()
505 		err = udp_add_offload(&fou->udp_offloads);  in fou_create()
510 	err = fou_add_to_port_list(net, fou);  in fou_create()
520 	kfree(fou);  in fou_create()
532 	struct fou *fou;  in fou_destroy()  local
535 	list_for_each_entry(fou, &fn->fou_list, list) {  in fou_destroy()
536 		if (fou->port == port) {  in fou_destroy()
537 			fou_release(fou);  in fou_destroy()
624 static int fou_fill_info(struct fou *fou, struct sk_buff *msg)  in fou_fill_info()  argument
626 	if (nla_put_u8(msg, FOU_ATTR_AF, fou->sock->sk->sk_family) ||  in fou_fill_info()
627 	    nla_put_be16(msg, FOU_ATTR_PORT, fou->port) ||  in fou_fill_info()
628 	    nla_put_u8(msg, FOU_ATTR_IPPROTO, fou->protocol) ||  in fou_fill_info()
629 	    nla_put_u8(msg, FOU_ATTR_TYPE, fou->type))  in fou_fill_info()
632 	if (fou->flags & FOU_F_REMCSUM_NOPARTIAL)  in fou_fill_info()
638 static int fou_dump_info(struct fou *fou, u32 portid, u32 seq,  in fou_dump_info()  argument
647 	if (fou_fill_info(fou, skb) < 0)  in fou_dump_info()
664 	struct fou *fout;  in fou_nl_cmd_get_port()
704 	struct fou *fout;  in fou_nl_dump()
950 	struct fou *fou, *next;  in fou_exit_net()  local
954 	list_for_each_entry_safe(fou, next, &fn->fou_list, list)  in fou_exit_net()
955 		fou_release(fou);  in fou_exit_net()