Lines Matching full:local
2 /* Local endpoint object management
40 * Compare a local to an address. Return -ve, 0 or +ve to indicate less than,
48 static long rxrpc_local_cmp_key(const struct rxrpc_local *local, in rxrpc_local_cmp_key() argument
53 diff = ((local->srx.transport_type - srx->transport_type) ?: in rxrpc_local_cmp_key()
54 (local->srx.transport_len - srx->transport_len) ?: in rxrpc_local_cmp_key()
55 (local->srx.transport.family - srx->transport.family)); in rxrpc_local_cmp_key()
64 return ((u16 __force)local->srx.transport.sin.sin_port - in rxrpc_local_cmp_key()
66 memcmp(&local->srx.transport.sin.sin_addr, in rxrpc_local_cmp_key()
74 return ((u16 __force)local->srx.transport.sin6.sin6_port - in rxrpc_local_cmp_key()
76 memcmp(&local->srx.transport.sin6.sin6_addr, in rxrpc_local_cmp_key()
87 struct rxrpc_local *local = in rxrpc_client_conn_reap_timeout() local
90 if (local->kill_all_client_conns && in rxrpc_client_conn_reap_timeout()
91 test_and_set_bit(RXRPC_CLIENT_CONN_REAP_TIMER, &local->client_conn_flags)) in rxrpc_client_conn_reap_timeout()
92 rxrpc_wake_up_io_thread(local); in rxrpc_client_conn_reap_timeout()
96 * Allocate a new local endpoint.
101 struct rxrpc_local *local; in rxrpc_alloc_local() local
104 local = kzalloc(sizeof(struct rxrpc_local), GFP_KERNEL); in rxrpc_alloc_local()
105 if (local) { in rxrpc_alloc_local()
106 refcount_set(&local->ref, 1); in rxrpc_alloc_local()
107 atomic_set(&local->active_users, 1); in rxrpc_alloc_local()
108 local->net = net; in rxrpc_alloc_local()
109 local->rxnet = rxrpc_net(net); in rxrpc_alloc_local()
110 INIT_HLIST_NODE(&local->link); in rxrpc_alloc_local()
111 init_completion(&local->io_thread_ready); in rxrpc_alloc_local()
113 skb_queue_head_init(&local->rx_delay_queue); in rxrpc_alloc_local()
115 skb_queue_head_init(&local->rx_queue); in rxrpc_alloc_local()
116 INIT_LIST_HEAD(&local->conn_attend_q); in rxrpc_alloc_local()
117 INIT_LIST_HEAD(&local->call_attend_q); in rxrpc_alloc_local()
119 local->client_bundles = RB_ROOT; in rxrpc_alloc_local()
120 spin_lock_init(&local->client_bundles_lock); in rxrpc_alloc_local()
121 local->kill_all_client_conns = false; in rxrpc_alloc_local()
122 INIT_LIST_HEAD(&local->idle_client_conns); in rxrpc_alloc_local()
123 timer_setup(&local->client_conn_reap_timer, in rxrpc_alloc_local()
126 spin_lock_init(&local->lock); in rxrpc_alloc_local()
127 rwlock_init(&local->services_lock); in rxrpc_alloc_local()
128 local->debug_id = atomic_inc_return(&rxrpc_debug_id); in rxrpc_alloc_local()
129 memcpy(&local->srx, srx, sizeof(*srx)); in rxrpc_alloc_local()
130 local->srx.srx_service = 0; in rxrpc_alloc_local()
131 idr_init(&local->conn_ids); in rxrpc_alloc_local()
136 idr_set_cursor(&local->conn_ids, tmp); in rxrpc_alloc_local()
137 INIT_LIST_HEAD(&local->new_client_calls); in rxrpc_alloc_local()
138 spin_lock_init(&local->client_call_lock); in rxrpc_alloc_local()
140 trace_rxrpc_local(local->debug_id, rxrpc_local_new, 1, 1); in rxrpc_alloc_local()
143 _leave(" = %p", local); in rxrpc_alloc_local()
144 return local; in rxrpc_alloc_local()
148 * create the local socket
151 static int rxrpc_open_socket(struct rxrpc_local *local, struct net *net) in rxrpc_open_socket() argument
154 struct sockaddr_rxrpc *srx = &local->srx; in rxrpc_open_socket()
161 local, srx->transport_type, srx->transport.family); in rxrpc_open_socket()
176 ret = udp_sock_create(net, &udp_conf, &local->socket); in rxrpc_open_socket()
185 tuncfg.sk_user_data = local; in rxrpc_open_socket()
186 setup_udp_tunnel_sock(net, local->socket, &tuncfg); in rxrpc_open_socket()
189 usk = local->socket->sk; in rxrpc_open_socket()
216 io_thread = kthread_run(rxrpc_io_thread, local, in rxrpc_open_socket()
223 wait_for_completion(&local->io_thread_ready); in rxrpc_open_socket()
224 local->io_thread = io_thread; in rxrpc_open_socket()
229 kernel_sock_shutdown(local->socket, SHUT_RDWR); in rxrpc_open_socket()
230 local->socket->sk->sk_user_data = NULL; in rxrpc_open_socket()
231 sock_release(local->socket); in rxrpc_open_socket()
232 local->socket = NULL; in rxrpc_open_socket()
237 * Look up or create a new local endpoint using the specified local address.
242 struct rxrpc_local *local; in rxrpc_lookup_local() local
254 local = hlist_entry(cursor, struct rxrpc_local, link); in rxrpc_lookup_local()
256 diff = rxrpc_local_cmp_key(local, srx); in rxrpc_lookup_local()
262 * but it may also still have the local transport address that in rxrpc_lookup_local()
266 local = NULL; in rxrpc_lookup_local()
272 * we're attempting to use a local address that the dying in rxrpc_lookup_local()
275 if (!rxrpc_use_local(local, rxrpc_local_use_lookup)) in rxrpc_lookup_local()
281 local = rxrpc_alloc_local(net, srx); in rxrpc_lookup_local()
282 if (!local) in rxrpc_lookup_local()
285 ret = rxrpc_open_socket(local, net); in rxrpc_lookup_local()
290 hlist_replace_rcu(cursor, &local->link); in rxrpc_lookup_local()
293 hlist_add_head_rcu(&local->link, &rxnet->local_endpoints); in rxrpc_lookup_local()
298 _leave(" = %p", local); in rxrpc_lookup_local()
299 return local; in rxrpc_lookup_local()
305 if (local) in rxrpc_lookup_local()
306 call_rcu(&local->rcu, rxrpc_local_rcu); in rxrpc_lookup_local()
317 * Get a ref on a local endpoint.
319 struct rxrpc_local *rxrpc_get_local(struct rxrpc_local *local, in rxrpc_get_local() argument
324 u = atomic_read(&local->active_users); in rxrpc_get_local()
325 __refcount_inc(&local->ref, &r); in rxrpc_get_local()
326 trace_rxrpc_local(local->debug_id, why, r + 1, u); in rxrpc_get_local()
327 return local; in rxrpc_get_local()
331 * Get a ref on a local endpoint unless its usage has already reached 0.
333 struct rxrpc_local *rxrpc_get_local_maybe(struct rxrpc_local *local, in rxrpc_get_local_maybe() argument
338 if (local && __refcount_inc_not_zero(&local->ref, &r)) { in rxrpc_get_local_maybe()
339 u = atomic_read(&local->active_users); in rxrpc_get_local_maybe()
340 trace_rxrpc_local(local->debug_id, why, r + 1, u); in rxrpc_get_local_maybe()
341 return local; in rxrpc_get_local_maybe()
348 * Drop a ref on a local endpoint.
350 void rxrpc_put_local(struct rxrpc_local *local, enum rxrpc_local_trace why) in rxrpc_put_local() argument
356 if (local) { in rxrpc_put_local()
357 debug_id = local->debug_id; in rxrpc_put_local()
359 u = atomic_read(&local->active_users); in rxrpc_put_local()
360 dead = __refcount_dec_and_test(&local->ref, &r); in rxrpc_put_local()
364 call_rcu(&local->rcu, rxrpc_local_rcu); in rxrpc_put_local()
369 * Start using a local endpoint.
371 struct rxrpc_local *rxrpc_use_local(struct rxrpc_local *local, in rxrpc_use_local() argument
374 local = rxrpc_get_local_maybe(local, rxrpc_local_get_for_use); in rxrpc_use_local()
375 if (!local) in rxrpc_use_local()
378 if (!__rxrpc_use_local(local, why)) { in rxrpc_use_local()
379 rxrpc_put_local(local, rxrpc_local_put_for_use); in rxrpc_use_local()
383 return local; in rxrpc_use_local()
387 * Cease using a local endpoint. Once the number of active users reaches 0, we
390 void rxrpc_unuse_local(struct rxrpc_local *local, enum rxrpc_local_trace why) in rxrpc_unuse_local() argument
395 if (local) { in rxrpc_unuse_local()
396 debug_id = local->debug_id; in rxrpc_unuse_local()
397 r = refcount_read(&local->ref); in rxrpc_unuse_local()
398 u = atomic_dec_return(&local->active_users); in rxrpc_unuse_local()
401 kthread_stop(local->io_thread); in rxrpc_unuse_local()
406 * Destroy a local endpoint's socket and then hand the record to RCU to dispose
412 void rxrpc_destroy_local(struct rxrpc_local *local) in rxrpc_destroy_local() argument
414 struct socket *socket = local->socket; in rxrpc_destroy_local()
415 struct rxrpc_net *rxnet = local->rxnet; in rxrpc_destroy_local()
417 _enter("%d", local->debug_id); in rxrpc_destroy_local()
419 local->dead = true; in rxrpc_destroy_local()
422 hlist_del_init_rcu(&local->link); in rxrpc_destroy_local()
425 rxrpc_clean_up_local_conns(local); in rxrpc_destroy_local()
427 ASSERT(!local->service); in rxrpc_destroy_local()
430 local->socket = NULL; in rxrpc_destroy_local()
437 * local endpoint. in rxrpc_destroy_local()
440 rxrpc_purge_queue(&local->rx_delay_queue); in rxrpc_destroy_local()
442 rxrpc_purge_queue(&local->rx_queue); in rxrpc_destroy_local()
443 rxrpc_purge_client_connections(local); in rxrpc_destroy_local()
447 * Destroy a local endpoint after the RCU grace period expires.
451 struct rxrpc_local *local = container_of(rcu, struct rxrpc_local, rcu); in rxrpc_local_rcu() local
453 rxrpc_see_local(local, rxrpc_local_free); in rxrpc_local_rcu()
454 kfree(local); in rxrpc_local_rcu()
458 * Verify the local endpoint list is empty by this point.
462 struct rxrpc_local *local; in rxrpc_destroy_all_locals() local
470 hlist_for_each_entry(local, &rxnet->local_endpoints, link) { in rxrpc_destroy_all_locals()
471 pr_err("AF_RXRPC: Leaked local %p {%d}\n", in rxrpc_destroy_all_locals()
472 local, refcount_read(&local->ref)); in rxrpc_destroy_all_locals()