2 * Copyright (c) 2017-2019 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 #include <vnet/session/application.h>
17 #include <vnet/session/application_interface.h>
18 #include <vnet/session/application_namespace.h>
19 #include <vnet/session/application_local.h>
20 #include <vnet/session/session.h>
22 static app_main_t app_main;
24 #define app_interface_check_thread_and_barrier(_fn, _arg) \
25 if (PREDICT_FALSE (!vlib_thread_is_main_w_barrier ())) \
27 vlib_rpc_call_main_thread (_fn, (u8 *) _arg, sizeof(*_arg)); \
31 static app_listener_t *
32 app_listener_alloc (application_t * app)
34 app_listener_t *app_listener;
35 pool_get (app->listeners, app_listener);
36 clib_memset (app_listener, 0, sizeof (*app_listener));
37 app_listener->al_index = app_listener - app->listeners;
38 app_listener->app_index = app->app_index;
39 app_listener->session_index = SESSION_INVALID_INDEX;
40 app_listener->local_index = SESSION_INVALID_INDEX;
45 app_listener_get (application_t * app, u32 app_listener_index)
47 return pool_elt_at_index (app->listeners, app_listener_index);
51 app_listener_free (application_t * app, app_listener_t * app_listener)
53 clib_bitmap_free (app_listener->workers);
54 pool_put (app->listeners, app_listener);
56 clib_memset (app_listener, 0xfa, sizeof (*app_listener));
60 app_listener_id (app_listener_t * al)
62 ASSERT (al->app_index < 1 << 16 && al->al_index < 1 << 16);
63 return (al->app_index << 16 | al->al_index);
67 app_listener_handle (app_listener_t * al)
69 return ((u64) SESSION_LISTENER_PREFIX << 32 | (u64) app_listener_id (al));
73 app_listener_id_parse (u32 listener_id, u32 * app_index,
74 u32 * app_listener_index)
76 *app_index = listener_id >> 16;
77 *app_listener_index = listener_id & 0xFFFF;
81 app_listener_handle_parse (session_handle_t handle, u32 * app_index,
82 u32 * app_listener_index)
84 app_listener_id_parse (handle & 0xFFFFFFFF, app_index, app_listener_index);
87 static app_listener_t *
88 app_listener_get_w_id (u32 listener_id)
90 u32 app_index, app_listener_index;
93 app_listener_id_parse (listener_id, &app_index, &app_listener_index);
94 app = application_get_if_valid (app_index);
97 return app_listener_get (app, app_listener_index);
101 app_listener_get_w_session (session_t * ls)
105 app = application_get_if_valid (ls->app_index);
108 return app_listener_get (app, ls->al_index);
112 app_listener_get_w_handle (session_handle_t handle)
115 if (handle >> 32 != SESSION_LISTENER_PREFIX)
118 return app_listener_get_w_id (handle & 0xFFFFFFFF);
122 app_listener_lookup (application_t * app, session_endpoint_cfg_t * sep_ext)
124 u32 table_index, fib_proto;
125 session_endpoint_t *sep;
126 session_handle_t handle;
129 sep = (session_endpoint_t *) sep_ext;
130 if (application_has_local_scope (app) && session_endpoint_is_local (sep))
132 table_index = application_local_session_table (app);
133 handle = session_lookup_endpoint_listener (table_index, sep, 1);
134 if (handle != SESSION_INVALID_HANDLE)
136 ls = listen_session_get_from_handle (handle);
137 return app_listener_get_w_session (ls);
141 fib_proto = session_endpoint_fib_proto (sep);
142 table_index = application_session_table (app, fib_proto);
143 handle = session_lookup_endpoint_listener (table_index, sep, 1);
144 if (handle != SESSION_INVALID_HANDLE)
146 ls = listen_session_get_from_handle (handle);
147 return app_listener_get_w_session ((session_t *) ls);
154 app_listener_alloc_and_init (application_t * app,
155 session_endpoint_cfg_t * sep,
156 app_listener_t ** listener)
158 app_listener_t *app_listener;
159 transport_connection_t *tc;
160 local_session_t *ll = 0;
167 app_listener = app_listener_alloc (app);
168 al_index = app_listener->al_index;
169 st = session_type_from_proto_and_ip (sep->transport_proto, sep->is_ip4);
172 * Add session endpoint to local session table. Only binds to "inaddr_any"
173 * (i.e., zero address) are added to local scope table.
175 if (application_has_local_scope (app)
176 && session_endpoint_is_local ((session_endpoint_t *) sep))
178 session_type_t local_st;
181 local_st = session_type_from_proto_and_ip (TRANSPORT_PROTO_NONE,
183 ls = listen_session_alloc (0, local_st);
184 ls->app_index = app->app_index;
185 ls->app_wrk_index = sep->app_wrk_index;
186 lh = session_handle (ls);
188 if ((rv = session_listen (ls, sep)))
190 ls = session_get_from_handle (lh);
195 ls = session_get_from_handle (lh);
196 app_listener = app_listener_get (app, al_index);
197 app_listener->local_index = ls->session_index;
198 ls->al_index = al_index;
200 table_index = application_local_session_table (app);
201 session_lookup_add_session_endpoint (table_index,
202 (session_endpoint_t *) sep, lh);
205 if (application_has_global_scope (app))
208 * Start listening on local endpoint for requested transport and scope.
209 * Creates a stream session with state LISTENING to be used in session
210 * lookups, prior to establishing connection. Requests transport to
211 * build it's own specific listening connection.
213 ls = listen_session_alloc (0, st);
214 ls->app_index = app->app_index;
215 ls->app_wrk_index = sep->app_wrk_index;
217 /* Listen pool can be reallocated if the transport is
219 lh = listen_session_get_handle (ls);
221 if ((rv = session_listen (ls, sep)))
223 ls = listen_session_get_from_handle (lh);
227 ls = listen_session_get_from_handle (lh);
228 app_listener = app_listener_get (app, al_index);
229 app_listener->session_index = ls->session_index;
230 ls->al_index = al_index;
232 /* Add to the global lookup table after transport was initialized.
233 * Lookup table needs to be populated only now because sessions
234 * with cut-through transport are are added to app local tables that
235 * are not related to network fibs, i.e., cannot be added as
237 tc = session_get_transport (ls);
238 session_lookup_add_connection (tc, lh);
243 app_listener_free (app, app_listener);
247 *listener = app_listener;
252 app_listener_cleanup (app_listener_t * al)
254 application_t *app = application_get (al->app_index);
257 if (al->session_index != SESSION_INVALID_INDEX)
259 ls = session_get (al->session_index, 0);
260 session_stop_listen (ls);
261 listen_session_free (ls);
263 if (al->local_index != SESSION_INVALID_INDEX)
265 session_endpoint_t sep = SESSION_ENDPOINT_NULL;
268 table_index = application_local_session_table (app);
269 ls = listen_session_get (al->local_index);
270 application_local_listener_session_endpoint (ls, &sep);
271 session_lookup_del_session_endpoint (table_index, &sep);
272 listen_session_free (ls);
274 app_listener_free (app, al);
278 app_listener_select_worker (app_listener_t * al)
283 app = application_get (al->app_index);
284 wrk_index = clib_bitmap_next_set (al->workers, al->accept_rotor + 1);
286 wrk_index = clib_bitmap_first_set (al->workers);
288 ASSERT (wrk_index != ~0);
289 al->accept_rotor = wrk_index;
290 return application_get_worker (app, wrk_index);
294 app_listener_get_session (app_listener_t * al)
296 if (al->session_index == SESSION_INVALID_INDEX)
299 return listen_session_get (al->session_index);
303 app_listener_get_local_session (app_listener_t * al)
305 if (al->local_index == SESSION_INVALID_INDEX)
307 return listen_session_get (al->local_index);
310 static app_worker_map_t *
311 app_worker_map_alloc (application_t * app)
313 app_worker_map_t *map;
314 pool_get (app->worker_maps, map);
315 clib_memset (map, 0, sizeof (*map));
320 app_worker_map_index (application_t * app, app_worker_map_t * map)
322 return (map - app->worker_maps);
326 app_worker_map_free (application_t * app, app_worker_map_t * map)
328 pool_put (app->worker_maps, map);
331 static app_worker_map_t *
332 app_worker_map_get (application_t * app, u32 map_index)
334 if (pool_is_free_index (app->worker_maps, map_index))
336 return pool_elt_at_index (app->worker_maps, map_index);
340 app_get_name (application_t * app)
346 application_session_table (application_t * app, u8 fib_proto)
348 app_namespace_t *app_ns;
349 app_ns = app_namespace_get (app->ns_index);
350 if (!application_has_global_scope (app))
351 return APP_INVALID_INDEX;
352 if (fib_proto == FIB_PROTOCOL_IP4)
353 return session_lookup_get_index_for_fib (fib_proto,
354 app_ns->ip4_fib_index);
356 return session_lookup_get_index_for_fib (fib_proto,
357 app_ns->ip6_fib_index);
361 application_local_session_table (application_t * app)
363 app_namespace_t *app_ns;
364 if (!application_has_local_scope (app))
365 return APP_INVALID_INDEX;
366 app_ns = app_namespace_get (app->ns_index);
367 return app_ns->local_table_index;
371 * Returns app name for app-index
374 application_name_from_index (u32 app_index)
376 application_t *app = application_get (app_index);
379 return app_get_name (app);
383 application_api_table_add (u32 app_index, u32 api_client_index)
385 if (api_client_index != APP_INVALID_INDEX)
386 hash_set (app_main.app_by_api_client_index, api_client_index, app_index);
390 application_api_table_del (u32 api_client_index)
392 hash_unset (app_main.app_by_api_client_index, api_client_index);
396 application_name_table_add (application_t * app)
398 hash_set_mem (app_main.app_by_name, app->name, app->app_index);
402 application_name_table_del (application_t * app)
404 hash_unset_mem (app_main.app_by_name, app->name);
408 application_lookup (u32 api_client_index)
411 p = hash_get (app_main.app_by_api_client_index, api_client_index);
413 return application_get_if_valid (p[0]);
419 application_lookup_name (const u8 * name)
422 p = hash_get_mem (app_main.app_by_name, name);
424 return application_get (p[0]);
429 static application_t *
430 application_alloc (void)
433 pool_get (app_main.app_pool, app);
434 clib_memset (app, 0, sizeof (*app));
435 app->app_index = app - app_main.app_pool;
440 application_get (u32 app_index)
442 if (app_index == APP_INVALID_INDEX)
444 return pool_elt_at_index (app_main.app_pool, app_index);
448 application_get_if_valid (u32 app_index)
450 if (pool_is_free_index (app_main.app_pool, app_index))
453 return pool_elt_at_index (app_main.app_pool, app_index);
457 application_verify_cb_fns (session_cb_vft_t * cb_fns)
459 if (cb_fns->session_accept_callback == 0)
460 clib_warning ("No accept callback function provided");
461 if (cb_fns->session_connected_callback == 0)
462 clib_warning ("No session connected callback function provided");
463 if (cb_fns->session_disconnect_callback == 0)
464 clib_warning ("No session disconnect callback function provided");
465 if (cb_fns->session_reset_callback == 0)
466 clib_warning ("No session reset callback function provided");
470 * Check app config for given segment type
472 * Returns 1 on success and 0 otherwise
475 application_verify_cfg (ssvm_segment_type_t st)
478 if (st == SSVM_SEGMENT_MEMFD)
480 is_valid = (session_manager_get_evt_q_segment () != 0);
482 clib_warning ("memfd seg: vpp's event qs IN binary api svm region");
485 else if (st == SSVM_SEGMENT_SHM)
487 is_valid = (session_manager_get_evt_q_segment () == 0);
489 clib_warning ("shm seg: vpp's event qs NOT IN binary api svm region");
497 application_alloc_and_init (app_init_args_t * a)
499 ssvm_segment_type_t seg_type = SSVM_SEGMENT_MEMFD;
500 segment_manager_properties_t *props;
501 vl_api_registration_t *reg;
505 app = application_alloc ();
506 options = a->options;
508 * Make sure we support the requested configuration
510 if (!(options[APP_OPTIONS_FLAGS] & APP_OPTIONS_FLAGS_IS_BUILTIN))
512 reg = vl_api_client_index_to_registration (a->api_client_index);
514 return VNET_API_ERROR_APP_UNSUPPORTED_CFG;
515 if (vl_api_registration_file_index (reg) == VL_API_INVALID_FI)
516 seg_type = SSVM_SEGMENT_SHM;
520 if (options[APP_OPTIONS_FLAGS] & APP_OPTIONS_FLAGS_EVT_MQ_USE_EVENTFD)
522 clib_warning ("mq eventfds can only be used if socket transport is "
524 return VNET_API_ERROR_APP_UNSUPPORTED_CFG;
526 seg_type = SSVM_SEGMENT_PRIVATE;
529 if (!application_verify_cfg (seg_type))
530 return VNET_API_ERROR_APP_UNSUPPORTED_CFG;
532 /* Check that the obvious things are properly set up */
533 application_verify_cb_fns (a->session_cb_vft);
535 app->flags = options[APP_OPTIONS_FLAGS];
536 app->cb_fns = *a->session_cb_vft;
537 app->ns_index = options[APP_OPTIONS_NAMESPACE];
538 app->proxied_transports = options[APP_OPTIONS_PROXY_TRANSPORT];
539 app->name = vec_dup (a->name);
541 /* If no scope enabled, default to global */
542 if (!application_has_global_scope (app)
543 && !application_has_local_scope (app))
544 app->flags |= APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
546 props = application_segment_manager_properties (app);
547 segment_manager_properties_init (props);
548 props->segment_size = options[APP_OPTIONS_ADD_SEGMENT_SIZE];
549 props->prealloc_fifos = options[APP_OPTIONS_PREALLOC_FIFO_PAIRS];
550 if (options[APP_OPTIONS_ADD_SEGMENT_SIZE])
552 props->add_segment_size = options[APP_OPTIONS_ADD_SEGMENT_SIZE];
553 props->add_segment = 1;
555 if (options[APP_OPTIONS_RX_FIFO_SIZE])
556 props->rx_fifo_size = options[APP_OPTIONS_RX_FIFO_SIZE];
557 if (options[APP_OPTIONS_TX_FIFO_SIZE])
558 props->tx_fifo_size = options[APP_OPTIONS_TX_FIFO_SIZE];
559 if (options[APP_OPTIONS_EVT_QUEUE_SIZE])
560 props->evt_q_size = options[APP_OPTIONS_EVT_QUEUE_SIZE];
561 if (options[APP_OPTIONS_FLAGS] & APP_OPTIONS_FLAGS_EVT_MQ_USE_EVENTFD)
562 props->use_mq_eventfd = 1;
563 if (options[APP_OPTIONS_TLS_ENGINE])
564 app->tls_engine = options[APP_OPTIONS_TLS_ENGINE];
565 props->segment_type = seg_type;
567 /* Add app to lookup by api_client_index table */
568 if (!application_is_builtin (app))
569 application_api_table_add (app->app_index, a->api_client_index);
571 application_name_table_add (app);
573 a->app_index = app->app_index;
575 APP_DBG ("New app name: %v api index: %u index %u", app->name,
576 app->api_client_index, app->app_index);
582 application_free (application_t * app)
584 app_worker_map_t *wrk_map;
585 app_worker_t *app_wrk;
588 * The app event queue allocated in first segment is cleared with
589 * the segment manager. No need to explicitly free it.
591 APP_DBG ("Delete app name %v api index: %d index: %d", app->name,
592 app->api_client_index, app->app_index);
594 if (application_is_proxy (app))
595 application_remove_proxy (app);
602 pool_flush (wrk_map, app->worker_maps, ({
603 app_wrk = app_worker_get (wrk_map->wrk_index);
604 app_worker_free (app_wrk);
607 pool_free (app->worker_maps);
610 * Cleanup remaining state
612 if (application_is_builtin (app))
613 application_name_table_del (app);
614 vec_free (app->name);
615 vec_free (app->tls_cert);
616 vec_free (app->tls_key);
617 pool_put (app_main.app_pool, app);
621 application_detach_process (application_t * app, u32 api_client_index)
623 vnet_app_worker_add_del_args_t _args = { 0 }, *args = &_args;
624 app_worker_map_t *wrk_map;
625 u32 *wrks = 0, *wrk_index;
626 app_worker_t *app_wrk;
628 if (api_client_index == ~0)
630 application_free (app);
634 APP_DBG ("Detaching for app %v index %u api client index %u", app->name,
635 app->app_index, app->api_client_index);
638 pool_foreach (wrk_map, app->worker_maps, ({
639 app_wrk = app_worker_get (wrk_map->wrk_index);
640 if (app_wrk->api_client_index == api_client_index)
641 vec_add1 (wrks, app_wrk->wrk_index);
647 clib_warning ("no workers for app %u api_index %u", app->app_index,
652 args->app_index = app->app_index;
653 args->api_client_index = api_client_index;
654 vec_foreach (wrk_index, wrks)
656 app_wrk = app_worker_get (wrk_index[0]);
657 args->wrk_map_index = app_wrk->wrk_map_index;
659 vnet_app_worker_add_del (args);
665 application_get_worker (application_t * app, u32 wrk_map_index)
667 app_worker_map_t *map;
668 map = app_worker_map_get (app, wrk_map_index);
671 return app_worker_get (map->wrk_index);
675 application_get_default_worker (application_t * app)
677 return application_get_worker (app, 0);
681 application_n_workers (application_t * app)
683 return pool_elts (app->worker_maps);
687 application_listener_select_worker (session_t * ls)
691 al = app_listener_get_w_session (ls);
692 return app_listener_select_worker (al);
696 application_alloc_worker_and_init (application_t * app, app_worker_t ** wrk)
698 app_worker_map_t *wrk_map;
699 app_worker_t *app_wrk;
700 segment_manager_t *sm;
703 app_wrk = app_worker_alloc (app);
704 wrk_map = app_worker_map_alloc (app);
705 wrk_map->wrk_index = app_wrk->wrk_index;
706 app_wrk->wrk_map_index = app_worker_map_index (app, wrk_map);
709 * Setup first segment manager
711 sm = segment_manager_new ();
712 sm->app_wrk_index = app_wrk->wrk_index;
714 if ((rv = segment_manager_init (sm, app->sm_properties.segment_size,
715 app->sm_properties.prealloc_fifos)))
717 app_worker_free (app_wrk);
720 sm->first_is_protected = 1;
725 app_wrk->first_segment_manager = segment_manager_index (sm);
726 app_wrk->listeners_table = hash_create (0, sizeof (u64));
727 app_wrk->event_queue = segment_manager_event_queue (sm);
728 app_wrk->app_is_builtin = application_is_builtin (app);
731 * Segment manager for local sessions
733 sm = segment_manager_new ();
734 sm->app_wrk_index = app_wrk->wrk_index;
735 app_wrk->local_segment_manager = segment_manager_index (sm);
736 app_wrk->local_connects = hash_create (0, sizeof (u64));
744 vnet_app_worker_add_del (vnet_app_worker_add_del_args_t * a)
746 svm_fifo_segment_private_t *fs;
747 app_worker_map_t *wrk_map;
748 app_worker_t *app_wrk;
749 segment_manager_t *sm;
753 app = application_get (a->app_index);
755 return VNET_API_ERROR_INVALID_VALUE;
759 if ((rv = application_alloc_worker_and_init (app, &app_wrk)))
762 /* Map worker api index to the app */
763 app_wrk->api_client_index = a->api_client_index;
764 application_api_table_add (app->app_index, a->api_client_index);
766 sm = segment_manager_get (app_wrk->first_segment_manager);
767 fs = segment_manager_get_segment_w_lock (sm, 0);
768 a->segment = &fs->ssvm;
769 a->segment_handle = segment_manager_segment_handle (sm, fs);
770 segment_manager_segment_reader_unlock (sm);
771 a->evt_q = app_wrk->event_queue;
772 a->wrk_map_index = app_wrk->wrk_map_index;
776 wrk_map = app_worker_map_get (app, a->wrk_map_index);
778 return VNET_API_ERROR_INVALID_VALUE;
780 app_wrk = app_worker_get (wrk_map->wrk_index);
782 return VNET_API_ERROR_INVALID_VALUE;
784 application_api_table_del (app_wrk->api_client_index);
785 app_worker_free (app_wrk);
786 app_worker_map_free (app, wrk_map);
787 if (application_n_workers (app) == 0)
788 application_free (app);
794 app_validate_namespace (u8 * namespace_id, u64 secret, u32 * app_ns_index)
796 app_namespace_t *app_ns;
797 if (vec_len (namespace_id) == 0)
799 /* Use default namespace */
804 *app_ns_index = app_namespace_index_from_id (namespace_id);
805 if (*app_ns_index == APP_NAMESPACE_INVALID_INDEX)
806 return VNET_API_ERROR_APP_INVALID_NS;
807 app_ns = app_namespace_get (*app_ns_index);
809 return VNET_API_ERROR_APP_INVALID_NS;
810 if (app_ns->ns_secret != secret)
811 return VNET_API_ERROR_APP_WRONG_NS_SECRET;
816 app_name_from_api_index (u32 api_client_index)
818 vl_api_registration_t *regp;
819 regp = vl_api_client_index_to_registration (api_client_index);
821 return format (0, "%s%c", regp->name, 0);
823 clib_warning ("api client index %u does not have an api registration!",
825 return format (0, "unknown%c", 0);
829 * Attach application to vpp
831 * Allocates a vpp app, i.e., a structure that keeps back pointers
832 * to external app and a segment manager for shared memory fifo based
833 * communication with the external app.
836 vnet_application_attach (vnet_app_attach_args_t * a)
838 svm_fifo_segment_private_t *fs;
839 application_t *app = 0;
840 app_worker_t *app_wrk;
841 segment_manager_t *sm;
842 u32 app_ns_index = 0;
847 if (a->api_client_index != APP_INVALID_INDEX)
848 app = application_lookup (a->api_client_index);
850 app = application_lookup_name (a->name);
852 return VNET_API_ERROR_INVALID_VALUE;
855 return VNET_API_ERROR_APP_ALREADY_ATTACHED;
857 if (a->api_client_index != APP_INVALID_INDEX)
859 app_name = app_name_from_api_index (a->api_client_index);
863 secret = a->options[APP_OPTIONS_NAMESPACE_SECRET];
864 if ((rv = app_validate_namespace (a->namespace_id, secret, &app_ns_index)))
866 a->options[APP_OPTIONS_NAMESPACE] = app_ns_index;
868 if ((rv = application_alloc_and_init ((app_init_args_t *) a)))
871 app = application_get (a->app_index);
872 if ((rv = application_alloc_worker_and_init (app, &app_wrk)))
875 a->app_evt_q = app_wrk->event_queue;
876 app_wrk->api_client_index = a->api_client_index;
877 sm = segment_manager_get (app_wrk->first_segment_manager);
878 fs = segment_manager_get_segment_w_lock (sm, 0);
880 if (application_is_proxy (app))
881 application_setup_proxy (app);
883 ASSERT (vec_len (fs->ssvm.name) <= 128);
884 a->segment = &fs->ssvm;
885 a->segment_handle = segment_manager_segment_handle (sm, fs);
887 segment_manager_segment_reader_unlock (sm);
893 * Detach application from vpp
896 vnet_application_detach (vnet_app_detach_args_t * a)
900 app = application_get_if_valid (a->app_index);
903 clib_warning ("app not attached");
904 return VNET_API_ERROR_APPLICATION_NOT_ATTACHED;
907 app_interface_check_thread_and_barrier (vnet_application_detach, a);
908 application_detach_process (app, a->api_client_index);
914 session_endpoint_in_ns (session_endpoint_t * sep)
916 u8 is_lep = session_endpoint_is_local (sep);
917 if (!is_lep && sep->sw_if_index != ENDPOINT_INVALID_INDEX
918 && !ip_interface_has_address (sep->sw_if_index, &sep->ip, sep->is_ip4))
920 clib_warning ("sw_if_index %u not configured with ip %U",
921 sep->sw_if_index, format_ip46_address, &sep->ip,
925 return (is_lep || ip_is_local (sep->fib_index, &sep->ip, sep->is_ip4));
929 session_endpoint_update_for_app (session_endpoint_cfg_t * sep,
930 application_t * app, u8 is_connect)
932 app_namespace_t *app_ns;
933 u32 ns_index, fib_index;
935 ns_index = app->ns_index;
937 /* App is a transport proto, so fetch the calling app's ns */
938 if (app->flags & APP_OPTIONS_FLAGS_IS_TRANSPORT_APP)
939 ns_index = sep->ns_index;
941 app_ns = app_namespace_get (ns_index);
945 /* Ask transport and network to bind to/connect using local interface
946 * that "supports" app's namespace. This will fix our local connection
950 /* If in default namespace and user requested a fib index use it */
951 if (ns_index == 0 && sep->fib_index != ENDPOINT_INVALID_INDEX)
952 fib_index = sep->fib_index;
954 fib_index = sep->is_ip4 ? app_ns->ip4_fib_index : app_ns->ip6_fib_index;
955 sep->peer.fib_index = fib_index;
956 sep->fib_index = fib_index;
960 sep->sw_if_index = app_ns->sw_if_index;
964 if (app_ns->sw_if_index != APP_NAMESPACE_INVALID_INDEX
965 && sep->peer.sw_if_index != ENDPOINT_INVALID_INDEX
966 && sep->peer.sw_if_index != app_ns->sw_if_index)
967 clib_warning ("Local sw_if_index different from app ns sw_if_index");
969 sep->peer.sw_if_index = app_ns->sw_if_index;
974 vnet_listen (vnet_listen_args_t * a)
976 app_listener_t *app_listener;
977 app_worker_t *app_wrk;
981 app = application_get_if_valid (a->app_index);
983 return VNET_API_ERROR_APPLICATION_NOT_ATTACHED;
985 app_wrk = application_get_worker (app, a->wrk_map_index);
987 return VNET_API_ERROR_INVALID_VALUE;
989 a->sep_ext.app_wrk_index = app_wrk->wrk_index;
991 session_endpoint_update_for_app (&a->sep_ext, app, 0 /* is_connect */ );
992 if (!session_endpoint_in_ns (&a->sep))
993 return VNET_API_ERROR_INVALID_VALUE_2;
996 * Check if we already have an app listener
998 app_listener = app_listener_lookup (app, &a->sep_ext);
1001 if (app_listener->app_index != app->app_index)
1002 return VNET_API_ERROR_ADDRESS_IN_USE;
1003 if (app_worker_start_listen (app_wrk, app_listener))
1005 a->handle = app_listener_handle (app_listener);
1010 * Create new app listener
1012 if ((rv = app_listener_alloc_and_init (app, &a->sep_ext, &app_listener)))
1015 if ((rv = app_worker_start_listen (app_wrk, app_listener)))
1017 app_listener_cleanup (app_listener);
1021 a->handle = app_listener_handle (app_listener);
1026 vnet_connect (vnet_connect_args_t * a)
1028 app_worker_t *server_wrk, *client_wrk;
1029 application_t *client;
1034 session_handle_t lh;
1036 if (session_endpoint_is_zero (&a->sep))
1037 return VNET_API_ERROR_INVALID_VALUE;
1039 client = application_get (a->app_index);
1040 session_endpoint_update_for_app (&a->sep_ext, client, 1 /* is_connect */ );
1041 client_wrk = application_get_worker (client, a->wrk_map_index);
1044 * First check the local scope for locally attached destinations.
1045 * If we have local scope, we pass *all* connects through it since we may
1046 * have special policy rules even for non-local destinations, think proxy.
1048 if (application_has_local_scope (client))
1050 table_index = application_local_session_table (client);
1051 lh = session_lookup_local_endpoint (table_index, &a->sep);
1052 if (lh == SESSION_DROP_HANDLE)
1053 return VNET_API_ERROR_APP_CONNECT_FILTERED;
1055 if (lh == SESSION_INVALID_HANDLE)
1058 ls = listen_session_get_from_handle (lh);
1059 al = app_listener_get_w_session (ls);
1062 * Break loop if rule in local table points to connecting app. This
1063 * can happen if client is a generic proxy. Route connect through
1064 * global table instead.
1066 if (al->app_index == a->app_index)
1069 server_wrk = app_listener_select_worker (al);
1070 return app_worker_local_session_connect (client_wrk, server_wrk, ls,
1075 * If nothing found, check the global scope for locally attached
1076 * destinations. Make sure first that we're allowed to.
1080 if (session_endpoint_is_local (&a->sep))
1081 return VNET_API_ERROR_SESSION_CONNECT;
1083 if (!application_has_global_scope (client))
1084 return VNET_API_ERROR_APP_CONNECT_SCOPE;
1086 fib_proto = session_endpoint_fib_proto (&a->sep);
1087 table_index = application_session_table (client, fib_proto);
1088 ls = session_lookup_listener (table_index, &a->sep);
1091 al = app_listener_get_w_session (ls);
1092 server_wrk = app_listener_select_worker (al);
1093 return app_worker_local_session_connect (client_wrk, server_wrk, ls,
1098 * Not connecting to a local server, propagate to transport
1100 if (app_worker_connect_session (client_wrk, &a->sep, a->api_context))
1101 return VNET_API_ERROR_SESSION_CONNECT;
1106 vnet_unlisten (vnet_unlisten_args_t * a)
1108 app_worker_t *app_wrk;
1112 if (!(app = application_get_if_valid (a->app_index)))
1113 return VNET_API_ERROR_APPLICATION_NOT_ATTACHED;
1115 al = app_listener_get_w_handle (a->handle);
1116 if (al->app_index != app->app_index)
1118 clib_warning ("app doesn't own handle %llu!", a->handle);
1122 app_wrk = application_get_worker (app, a->wrk_map_index);
1125 clib_warning ("no app %u worker %u", app->app_index, a->wrk_map_index);
1129 return app_worker_stop_listen (app_wrk, al);
1133 vnet_disconnect_session (vnet_disconnect_args_t * a)
1135 if (session_handle_is_local (a->handle))
1137 app_worker_t *client_wrk, *server_wrk;
1138 local_session_t *ls;
1141 /* Disconnect reply came to worker 1 not main thread */
1142 app_interface_check_thread_and_barrier (vnet_disconnect_session, a);
1144 if (!(ls = app_worker_get_local_session_from_handle (a->handle)))
1147 client_wrk = app_worker_get_if_valid (ls->client_wrk_index);
1148 server_wrk = app_worker_get (ls->app_wrk_index);
1150 if (server_wrk->app_index == a->app_index)
1151 wrk_index = server_wrk->wrk_index;
1152 else if (client_wrk && client_wrk->app_index == a->app_index)
1153 wrk_index = client_wrk->wrk_index;
1155 if (wrk_index == ~0)
1157 clib_warning ("app %u does not own session 0x%lx", a->app_index,
1158 application_local_session_handle (ls));
1159 return VNET_API_ERROR_INVALID_VALUE;
1162 return app_worker_local_session_disconnect (wrk_index, ls);
1166 app_worker_t *app_wrk;
1169 s = session_get_from_handle_if_valid (a->handle);
1171 return VNET_API_ERROR_INVALID_VALUE;
1172 app_wrk = app_worker_get (s->app_wrk_index);
1173 if (app_wrk->app_index != a->app_index)
1174 return VNET_API_ERROR_INVALID_VALUE;
1176 /* We're peeking into another's thread pool. Make sure */
1177 ASSERT (s->session_index == session_index_from_handle (a->handle));
1185 application_change_listener_owner (session_t * s, app_worker_t * app_wrk)
1187 app_worker_t *old_wrk = app_worker_get (s->app_wrk_index);
1188 app_listener_t *app_listener;
1194 hash_unset (old_wrk->listeners_table, listen_session_get_handle (s));
1195 if (session_transport_service_type (s) == TRANSPORT_SERVICE_CL
1197 segment_manager_dealloc_fifos (s->rx_fifo->segment_index, s->rx_fifo,
1200 app = application_get (old_wrk->app_index);
1204 app_listener = app_listener_get (app, s->al_index);
1206 /* Only remove from lb for now */
1207 app_listener->workers = clib_bitmap_set (app_listener->workers,
1208 old_wrk->wrk_map_index, 0);
1210 if (app_worker_start_listen (app_wrk, app_listener))
1213 s->app_wrk_index = app_wrk->wrk_index;
1219 application_is_proxy (application_t * app)
1221 return (app->flags & APP_OPTIONS_FLAGS_IS_PROXY);
1225 application_is_builtin (application_t * app)
1227 return (app->flags & APP_OPTIONS_FLAGS_IS_BUILTIN);
1231 application_is_builtin_proxy (application_t * app)
1233 return (application_is_proxy (app) && application_is_builtin (app));
1237 application_has_local_scope (application_t * app)
1239 return app->flags & APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE;
1243 application_has_global_scope (application_t * app)
1245 return app->flags & APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
1249 application_use_mq_for_ctrl (application_t * app)
1251 return app->flags & APP_OPTIONS_FLAGS_USE_MQ_FOR_CTRL_MSGS;
1254 static clib_error_t *
1255 application_start_stop_proxy_fib_proto (application_t * app, u8 fib_proto,
1256 u8 transport_proto, u8 is_start)
1258 app_namespace_t *app_ns = app_namespace_get (app->ns_index);
1259 u8 is_ip4 = (fib_proto == FIB_PROTOCOL_IP4);
1260 session_endpoint_cfg_t sep = SESSION_ENDPOINT_CFG_NULL;
1261 transport_connection_t *tc;
1262 app_worker_t *app_wrk;
1267 /* TODO decide if we want proxy to be enabled for all workers */
1268 app_wrk = application_get_default_worker (app);
1271 s = app_worker_first_listener (app_wrk, fib_proto, transport_proto);
1274 sep.is_ip4 = is_ip4;
1275 sep.fib_index = app_namespace_get_fib_index (app_ns, fib_proto);
1276 sep.sw_if_index = app_ns->sw_if_index;
1277 sep.transport_proto = transport_proto;
1278 sep.app_wrk_index = app_wrk->wrk_index; /* only default */
1280 /* force global scope listener */
1282 app->flags &= ~APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE;
1283 app_listener_alloc_and_init (app, &sep, &al);
1286 app_worker_start_listen (app_wrk, al);
1287 s = listen_session_get (al->session_index);
1288 s->enqueue_epoch = SESSION_PROXY_LISTENER_INDEX;
1293 s = app_worker_proxy_listener (app_wrk, fib_proto, transport_proto);
1297 tc = listen_session_get_transport (s);
1299 if (!ip_is_zero (&tc->lcl_ip, 1))
1302 sep.is_ip4 = is_ip4;
1303 sep.fib_index = app_namespace_get_fib_index (app_ns, fib_proto);
1304 sep.transport_proto = transport_proto;
1306 sti = session_lookup_get_index_for_fib (fib_proto, sep.fib_index);
1308 session_lookup_add_session_endpoint (sti,
1309 (session_endpoint_t *) & sep,
1312 session_lookup_del_session_endpoint (sti,
1313 (session_endpoint_t *) & sep);
1320 application_start_stop_proxy_local_scope (application_t * app,
1321 u8 transport_proto, u8 is_start)
1323 session_endpoint_t sep = SESSION_ENDPOINT_NULL;
1324 app_namespace_t *app_ns;
1325 app_ns = app_namespace_get (app->ns_index);
1327 sep.transport_proto = transport_proto;
1332 session_lookup_add_session_endpoint (app_ns->local_table_index, &sep,
1335 session_lookup_add_session_endpoint (app_ns->local_table_index, &sep,
1340 session_lookup_del_session_endpoint (app_ns->local_table_index, &sep);
1342 session_lookup_del_session_endpoint (app_ns->local_table_index, &sep);
1347 application_start_stop_proxy (application_t * app,
1348 transport_proto_t transport_proto, u8 is_start)
1350 if (application_has_local_scope (app))
1351 application_start_stop_proxy_local_scope (app, transport_proto, is_start);
1353 if (application_has_global_scope (app))
1355 application_start_stop_proxy_fib_proto (app, FIB_PROTOCOL_IP4,
1356 transport_proto, is_start);
1357 application_start_stop_proxy_fib_proto (app, FIB_PROTOCOL_IP6,
1358 transport_proto, is_start);
1363 application_setup_proxy (application_t * app)
1365 u16 transports = app->proxied_transports;
1366 transport_proto_t tp;
1368 ASSERT (application_is_proxy (app));
1371 transport_proto_foreach (tp, ({
1372 if (transports & (1 << tp))
1373 application_start_stop_proxy (app, tp, 1);
1379 application_remove_proxy (application_t * app)
1381 u16 transports = app->proxied_transports;
1382 transport_proto_t tp;
1384 ASSERT (application_is_proxy (app));
1387 transport_proto_foreach (tp, ({
1388 if (transports & (1 << tp))
1389 application_start_stop_proxy (app, tp, 0);
1394 segment_manager_properties_t *
1395 application_segment_manager_properties (application_t * app)
1397 return &app->sm_properties;
1400 segment_manager_properties_t *
1401 application_get_segment_manager_properties (u32 app_index)
1403 application_t *app = application_get (app_index);
1404 return &app->sm_properties;
1408 vnet_app_add_tls_cert (vnet_app_add_tls_cert_args_t * a)
1411 app = application_get (a->app_index);
1413 return clib_error_return_code (0, VNET_API_ERROR_APPLICATION_NOT_ATTACHED,
1414 0, "app %u doesn't exist", a->app_index);
1415 app->tls_cert = vec_dup (a->cert);
1420 vnet_app_add_tls_key (vnet_app_add_tls_key_args_t * a)
1423 app = application_get (a->app_index);
1425 return clib_error_return_code (0, VNET_API_ERROR_APPLICATION_NOT_ATTACHED,
1426 0, "app %u doesn't exist", a->app_index);
1427 app->tls_key = vec_dup (a->key);
1432 application_format_listeners (application_t * app, int verbose)
1434 vlib_main_t *vm = vlib_get_main ();
1435 app_worker_map_t *wrk_map;
1436 app_worker_t *app_wrk;
1442 vlib_cli_output (vm, "%U", format_app_worker_listener, 0 /* header */ ,
1448 pool_foreach (wrk_map, app->worker_maps, ({
1449 app_wrk = app_worker_get (wrk_map->wrk_index);
1450 if (hash_elts (app_wrk->listeners_table) == 0)
1452 hash_foreach (handle, sm_index, app_wrk->listeners_table, ({
1453 vlib_cli_output (vm, "%U", format_app_worker_listener, app_wrk,
1454 handle, sm_index, verbose);
1461 application_format_connects (application_t * app, int verbose)
1463 app_worker_map_t *wrk_map;
1464 app_worker_t *app_wrk;
1468 app_worker_format_connects (0, verbose);
1473 pool_foreach (wrk_map, app->worker_maps, ({
1474 app_wrk = app_worker_get (wrk_map->wrk_index);
1475 app_worker_format_connects (app_wrk, verbose);
1481 application_format_local_sessions (application_t * app, int verbose)
1483 app_worker_map_t *wrk_map;
1484 app_worker_t *app_wrk;
1488 app_worker_format_local_sessions (0, verbose);
1493 * Format local accepted/connected sessions
1496 pool_foreach (wrk_map, app->worker_maps, ({
1497 app_wrk = app_worker_get (wrk_map->wrk_index);
1498 app_worker_format_local_sessions (app_wrk, verbose);
1504 application_format_local_connects (application_t * app, int verbose)
1506 app_worker_map_t *wrk_map;
1507 app_worker_t *app_wrk;
1511 app_worker_format_local_connects (0, verbose);
1516 pool_foreach (wrk_map, app->worker_maps, ({
1517 app_wrk = app_worker_get (wrk_map->wrk_index);
1518 app_worker_format_local_connects (app_wrk, verbose);
1524 format_application (u8 * s, va_list * args)
1526 application_t *app = va_arg (*args, application_t *);
1527 CLIB_UNUSED (int verbose) = va_arg (*args, int);
1528 segment_manager_properties_t *props;
1529 const u8 *app_ns_name, *app_name;
1530 app_worker_map_t *wrk_map;
1531 app_worker_t *app_wrk;
1536 s = format (s, "%-10s%-20s%-40s", "Index", "Name", "Namespace");
1540 app_name = app_get_name (app);
1541 app_ns_name = app_namespace_id_from_index (app->ns_index);
1542 props = application_segment_manager_properties (app);
1545 s = format (s, "%-10u%-20s%-40s", app->app_index, app_name,
1550 s = format (s, "app-name %s app-index %u ns-index %u seg-size %U\n",
1551 app_name, app->app_index, app->ns_index,
1552 format_memory_size, props->add_segment_size);
1553 s = format (s, "rx-fifo-size %U tx-fifo-size %U workers:\n",
1554 format_memory_size, props->rx_fifo_size,
1555 format_memory_size, props->tx_fifo_size);
1558 pool_foreach (wrk_map, app->worker_maps, ({
1559 app_wrk = app_worker_get (wrk_map->wrk_index);
1560 s = format (s, "%U", format_app_worker, app_wrk);
1568 application_format_all_listeners (vlib_main_t * vm, int do_local, int verbose)
1572 if (!pool_elts (app_main.app_pool))
1574 vlib_cli_output (vm, "No active server bindings");
1580 application_format_local_sessions (0, verbose);
1582 pool_foreach (app, app_main.app_pool, ({
1583 application_format_local_sessions (app, verbose);
1589 application_format_listeners (0, verbose);
1592 pool_foreach (app, app_main.app_pool, ({
1593 application_format_listeners (app, verbose);
1600 application_format_all_clients (vlib_main_t * vm, int do_local, int verbose)
1604 if (!pool_elts (app_main.app_pool))
1606 vlib_cli_output (vm, "No active apps");
1612 application_format_local_connects (0, verbose);
1615 pool_foreach (app, app_main.app_pool, ({
1616 application_format_local_connects (app, verbose);
1622 application_format_connects (0, verbose);
1625 pool_foreach (app, app_main.app_pool, ({
1626 application_format_connects (app, verbose);
1632 static clib_error_t *
1633 show_app_command_fn (vlib_main_t * vm, unformat_input_t * input,
1634 vlib_cli_command_t * cmd)
1636 int do_server = 0, do_client = 0, do_local = 0;
1641 session_cli_return_if_not_enabled ();
1643 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1645 if (unformat (input, "server"))
1647 else if (unformat (input, "client"))
1649 else if (unformat (input, "local"))
1651 else if (unformat (input, "%u", &app_index))
1653 else if (unformat (input, "verbose"))
1656 return clib_error_return (0, "unknown input `%U'",
1657 format_unformat_error, input);
1662 application_format_all_listeners (vm, do_local, verbose);
1668 application_format_all_clients (vm, do_local, verbose);
1672 if (app_index != ~0)
1674 app = application_get_if_valid (app_index);
1676 return clib_error_return (0, "No app with index %u", app_index);
1678 vlib_cli_output (vm, "%U", format_application, app, /* verbose */ 1);
1682 /* Print app related info */
1683 if (!do_server && !do_client)
1685 vlib_cli_output (vm, "%U", format_application, 0, 0);
1687 pool_foreach (app, app_main.app_pool, ({
1688 vlib_cli_output (vm, "%U", format_application, app, 0);
1697 VLIB_CLI_COMMAND (show_app_command, static) =
1700 .short_help = "show app [server|client] [verbose]",
1701 .function = show_app_command_fn,
1706 * fd.io coding-style-patch-verification: ON
1709 * eval: (c-set-style "gnu")