Lines Matching refs:local
42 void rxrpc_local_dont_fragment(const struct rxrpc_local *local, bool set)
45 ip_sock_set_mtu_discover(local->socket->sk, IP_PMTUDISC_DO);
47 ip_sock_set_mtu_discover(local->socket->sk, IP_PMTUDISC_DONT);
51 * Compare a local to an address. Return -ve, 0 or +ve to indicate less than,
59 static long rxrpc_local_cmp_key(const struct rxrpc_local *local,
64 diff = ((local->srx.transport_type - srx->transport_type) ?:
65 (local->srx.transport_len - srx->transport_len) ?:
66 (local->srx.transport.family - srx->transport.family));
75 return ((u16 __force)local->srx.transport.sin.sin_port -
77 memcmp(&local->srx.transport.sin.sin_addr,
85 return ((u16 __force)local->srx.transport.sin6.sin6_port -
87 memcmp(&local->srx.transport.sin6.sin6_addr,
98 struct rxrpc_local *local =
101 if (!local->kill_all_client_conns &&
102 test_and_set_bit(RXRPC_CLIENT_CONN_REAP_TIMER, &local->client_conn_flags))
103 rxrpc_wake_up_io_thread(local);
107 * Allocate a new local endpoint.
112 struct rxrpc_local *local;
115 local = kzalloc(sizeof(struct rxrpc_local), GFP_KERNEL);
116 if (local) {
117 refcount_set(&local->ref, 1);
118 atomic_set(&local->active_users, 1);
119 local->net = net;
120 local->rxnet = rxrpc_net(net);
121 INIT_HLIST_NODE(&local->link);
122 init_completion(&local->io_thread_ready);
124 skb_queue_head_init(&local->rx_delay_queue);
126 skb_queue_head_init(&local->rx_queue);
127 INIT_LIST_HEAD(&local->conn_attend_q);
128 INIT_LIST_HEAD(&local->call_attend_q);
130 local->client_bundles = RB_ROOT;
131 spin_lock_init(&local->client_bundles_lock);
132 local->kill_all_client_conns = false;
133 INIT_LIST_HEAD(&local->idle_client_conns);
134 timer_setup(&local->client_conn_reap_timer,
137 spin_lock_init(&local->lock);
138 rwlock_init(&local->services_lock);
139 local->debug_id = atomic_inc_return(&rxrpc_debug_id);
140 memcpy(&local->srx, srx, sizeof(*srx));
141 local->srx.srx_service = 0;
142 idr_init(&local->conn_ids);
147 idr_set_cursor(&local->conn_ids, tmp);
148 INIT_LIST_HEAD(&local->new_client_calls);
149 spin_lock_init(&local->client_call_lock);
151 trace_rxrpc_local(local->debug_id, rxrpc_local_new, 1, 1);
154 _leave(" = %p", local);
155 return local;
159 * create the local socket
162 static int rxrpc_open_socket(struct rxrpc_local *local, struct net *net)
165 struct sockaddr_rxrpc *srx = &local->srx;
172 local, srx->transport_type, srx->transport.family);
187 ret = udp_sock_create(net, &udp_conf, &local->socket);
196 tuncfg.sk_user_data = local;
197 setup_udp_tunnel_sock(net, local->socket, &tuncfg);
200 usk = local->socket->sk;
217 rxrpc_local_dont_fragment(local, true);
227 io_thread = kthread_run(rxrpc_io_thread, local,
234 wait_for_completion(&local->io_thread_ready);
235 local->io_thread = io_thread;
240 kernel_sock_shutdown(local->socket, SHUT_RDWR);
241 local->socket->sk->sk_user_data = NULL;
242 sock_release(local->socket);
243 local->socket = NULL;
248 * Look up or create a new local endpoint using the specified local address.
253 struct rxrpc_local *local;
265 local = hlist_entry(cursor, struct rxrpc_local, link);
267 diff = rxrpc_local_cmp_key(local, srx);
273 * but it may also still have the local transport address that
277 local = NULL;
283 * we're attempting to use a local address that the dying
286 if (!rxrpc_use_local(local, rxrpc_local_use_lookup))
292 local = rxrpc_alloc_local(net, srx);
293 if (!local)
296 ret = rxrpc_open_socket(local, net);
301 hlist_replace_rcu(cursor, &local->link);
304 hlist_add_head_rcu(&local->link, &rxnet->local_endpoints);
309 _leave(" = %p", local);
310 return local;
316 if (local)
317 call_rcu(&local->rcu, rxrpc_local_rcu);
328 * Get a ref on a local endpoint.
330 struct rxrpc_local *rxrpc_get_local(struct rxrpc_local *local,
335 u = atomic_read(&local->active_users);
336 __refcount_inc(&local->ref, &r);
337 trace_rxrpc_local(local->debug_id, why, r + 1, u);
338 return local;
342 * Get a ref on a local endpoint unless its usage has already reached 0.
344 struct rxrpc_local *rxrpc_get_local_maybe(struct rxrpc_local *local,
349 if (local && __refcount_inc_not_zero(&local->ref, &r)) {
350 u = atomic_read(&local->active_users);
351 trace_rxrpc_local(local->debug_id, why, r + 1, u);
352 return local;
359 * Drop a ref on a local endpoint.
361 void rxrpc_put_local(struct rxrpc_local *local, enum rxrpc_local_trace why)
367 if (local) {
368 debug_id = local->debug_id;
370 u = atomic_read(&local->active_users);
371 dead = __refcount_dec_and_test(&local->ref, &r);
375 call_rcu(&local->rcu, rxrpc_local_rcu);
380 * Start using a local endpoint.
382 struct rxrpc_local *rxrpc_use_local(struct rxrpc_local *local,
385 local = rxrpc_get_local_maybe(local, rxrpc_local_get_for_use);
386 if (!local)
389 if (!__rxrpc_use_local(local, why)) {
390 rxrpc_put_local(local, rxrpc_local_put_for_use);
394 return local;
398 * Cease using a local endpoint. Once the number of active users reaches 0, we
401 void rxrpc_unuse_local(struct rxrpc_local *local, enum rxrpc_local_trace why)
406 if (local) {
407 debug_id = local->debug_id;
408 r = refcount_read(&local->ref);
409 u = atomic_dec_return(&local->active_users);
412 kthread_stop(local->io_thread);
417 * Destroy a local endpoint's socket and then hand the record to RCU to dispose
423 void rxrpc_destroy_local(struct rxrpc_local *local)
425 struct socket *socket = local->socket;
426 struct rxrpc_net *rxnet = local->rxnet;
428 _enter("%d", local->debug_id);
430 local->dead = true;
433 hlist_del_init_rcu(&local->link);
436 rxrpc_clean_up_local_conns(local);
438 ASSERT(!local->service);
441 local->socket = NULL;
448 * local endpoint.
451 rxrpc_purge_queue(&local->rx_delay_queue);
453 rxrpc_purge_queue(&local->rx_queue);
454 rxrpc_purge_client_connections(local);
455 if (local->tx_alloc.va)
456 __page_frag_cache_drain(virt_to_page(local->tx_alloc.va),
457 local->tx_alloc.pagecnt_bias);
461 * Destroy a local endpoint after the RCU grace period expires.
465 struct rxrpc_local *local = container_of(rcu, struct rxrpc_local, rcu);
467 rxrpc_see_local(local, rxrpc_local_free);
468 kfree(local);
472 * Verify the local endpoint list is empty by this point.
476 struct rxrpc_local *local;
484 hlist_for_each_entry(local, &rxnet->local_endpoints, link) {
485 pr_err("AF_RXRPC: Leaked local %p {%d}\n",
486 local, refcount_read(&local->ref));