52  * struct service_range - container for all bindings of a service range
53  * @lower: service range lower bound
54  * @upper: service range upper bound
55  * @tree_node: member of service range RB tree
72  * struct tipc_service - container for all published instances of a service type
73  * @type: 32 bit 'type' value for service
74  * @publ_cnt: increasing counter for publications in this service
75  * @ranges: rb tree containing all service ranges for this service
77  * @subscriptions: list of subscriptions for this service type
78  * @lock: spinlock controlling access to pertaining service ranges/publications
87 	spinlock_t lock; /* Covers service range list */
103  * service_range_foreach_match - iterate over tipc service rbtree for each  in RB_DECLARE_CALLBACKS_MAX()
105  * @sr: the service range pointer as a loop cursor  in RB_DECLARE_CALLBACKS_MAX()
106  * @sc: the pointer to tipc service which holds the service range rbtree  in RB_DECLARE_CALLBACKS_MAX()
120  * service_range_match_first - find first service range matching a range
121  * @n: the root node of service range rbtree for searching
125  * Return: the leftmost service range node in the rbtree that overlaps the
170  * service_range_match_next - find next service range matching a range
171  * @n: a node in service range rbtree from which the searching starts
175  * Return: the next service range node to the given node in the rbtree that
225  * @ua: the service range the user is binding to
251  * tipc_service_create - create a service structure for the specified 'type'
253  * @ua: address representing the service to be bound
261 	struct tipc_service *service;  in tipc_service_create()  local
264 	service = kzalloc(sizeof(*service), GFP_ATOMIC);  in tipc_service_create()
265 	if (!service) {  in tipc_service_create()
266 		pr_warn("Service creation failed, no memory\n");  in tipc_service_create()
270 	spin_lock_init(&service->lock);  in tipc_service_create()
271 	service->type = ua->sr.type;  in tipc_service_create()
272 	service->ranges = RB_ROOT;  in tipc_service_create()
273 	INIT_HLIST_NODE(&service->service_list);  in tipc_service_create()
274 	INIT_LIST_HEAD(&service->subscriptions);  in tipc_service_create()
276 	hlist_add_head_rcu(&service->service_list, hd);  in tipc_service_create()
277 	return service;  in tipc_service_create()
280 /*  tipc_service_find_range - find service range matching publication parameters
378  * tipc_service_remove_publ - remove a publication from a service
416  * issue the prescribed number of events if there is any service
418  * @service: the tipc_service to attach the @sub to
421 static void tipc_service_subscribe(struct tipc_service *service,  in tipc_service_subscribe()  argument
434 	list_add(&sub->service_list, &service->subscriptions);  in tipc_service_subscribe()
440 	service_range_foreach_match(sr, service, lower, upper) {  in tipc_service_subscribe()
466 	struct tipc_service *service;  in tipc_service_find()  local
469 	hlist_for_each_entry_rcu(service, service_head, service_list) {  in tipc_service_find()
470 		if (service->type == ua->sr.type)  in tipc_service_find()
471 			return service;  in tipc_service_find()
526 	/* Remove service range item if this was its last publication */  in tipc_nametbl_remove_publ()
532 	/* Delete service item if no more publications and subscriptions */  in tipc_nametbl_remove_publ()
549  * tipc_nametbl_lookup_anycast - perform service instance to socket translation
551  * @ua: service address to look up
758 /* tipc_nametbl_publish - add service binding to name table
792  * tipc_nametbl_withdraw - withdraw a service binding
794  * @ua: service address/range being unbound
875 	/* Delete service item if no more publications and subscriptions */  in tipc_nametbl_unsubscribe()
907  * tipc_service_delete - purge all publications for a service and delete it
935 	struct tipc_service *service;  in tipc_nametbl_stop()  local
946 		hlist_for_each_entry_rcu(service, service_head, service_list) {  in tipc_nametbl_stop()
947 			tipc_service_delete(net, service);  in tipc_nametbl_stop()
957 					struct tipc_service *service,  in __tipc_nl_add_nametable_publ()  argument
995 		if (nla_put_u32(msg->skb, TIPC_NLA_PUBL_TYPE, service->type))  in __tipc_nl_add_nametable_publ()
1054 	struct tipc_service *service = NULL;  in tipc_nl_service_list()  local
1072 			service = tipc_service_find(net, &ua);  in tipc_nl_service_list()
1073 			if (!service)  in tipc_nl_service_list()
1076 			hlist_for_each_entry_rcu(service, head, service_list)  in tipc_nl_service_list()
1078 			if (!service)  in tipc_nl_service_list()
1082 		hlist_for_each_entry_from_rcu(service, service_list) {  in tipc_nl_service_list()
1083 			spin_lock_bh(&service->lock);  in tipc_nl_service_list()
1084 			err = __tipc_nl_service_range_list(msg, service,  in tipc_nl_service_list()
1089 				*last_type = service->type;  in tipc_nl_service_list()
1090 				spin_unlock_bh(&service->lock);  in tipc_nl_service_list()
1093 			spin_unlock_bh(&service->lock);  in tipc_nl_service_list()