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;
41 app_listener->ls_handle = SESSION_INVALID_HANDLE;
46 app_listener_get (application_t * app, u32 app_listener_index)
48 return pool_elt_at_index (app->listeners, app_listener_index);
52 app_listener_free (application_t * app, app_listener_t * app_listener)
54 clib_bitmap_free (app_listener->workers);
56 clib_memset (app_listener, 0xfa, sizeof (*app_listener));
57 pool_put (app->listeners, app_listener);
61 app_listener_handle (app_listener_t * al)
67 app_listener_get_w_session (session_t * ls)
71 app = application_get_if_valid (ls->app_index);
74 return app_listener_get (app, ls->al_index);
78 app_listen_session_handle (session_t * ls)
81 al = app_listener_get_w_session (ls);
83 return listen_session_get_handle (ls);
88 app_listener_get_w_handle (session_handle_t handle)
91 ls = session_get_from_handle_if_valid (handle);
94 return app_listener_get_w_session (ls);
98 app_listener_lookup (application_t * app, session_endpoint_cfg_t * sep_ext)
100 u32 table_index, fib_proto;
101 session_endpoint_t *sep;
102 session_handle_t handle;
105 sep = (session_endpoint_t *) sep_ext;
106 if (application_has_local_scope (app) && session_endpoint_is_local (sep))
108 table_index = application_local_session_table (app);
109 handle = session_lookup_endpoint_listener (table_index, sep, 1);
110 if (handle != SESSION_INVALID_HANDLE)
112 ls = listen_session_get_from_handle (handle);
113 return app_listener_get_w_session (ls);
117 fib_proto = session_endpoint_fib_proto (sep);
118 table_index = session_lookup_get_index_for_fib (fib_proto, sep->fib_index);
119 handle = session_lookup_endpoint_listener (table_index, sep, 1);
120 if (handle != SESSION_INVALID_HANDLE)
122 ls = listen_session_get_from_handle (handle);
123 return app_listener_get_w_session ((session_t *) ls);
130 app_listener_alloc_and_init (application_t * app,
131 session_endpoint_cfg_t * sep,
132 app_listener_t ** listener)
134 app_listener_t *app_listener;
135 transport_connection_t *tc;
136 u32 al_index, table_index;
142 app_listener = app_listener_alloc (app);
143 al_index = app_listener->al_index;
144 st = session_type_from_proto_and_ip (sep->transport_proto, sep->is_ip4);
147 * Add session endpoint to local session table. Only binds to "inaddr_any"
148 * (i.e., zero address) are added to local scope table.
150 if (application_has_local_scope (app)
151 && session_endpoint_is_local ((session_endpoint_t *) sep))
153 session_type_t local_st;
155 local_st = session_type_from_proto_and_ip (TRANSPORT_PROTO_NONE,
157 ls = listen_session_alloc (0, local_st);
158 ls->app_index = app->app_index;
159 ls->app_wrk_index = sep->app_wrk_index;
160 lh = session_handle (ls);
162 if ((rv = session_listen (ls, sep)))
164 ls = session_get_from_handle (lh);
169 ls = session_get_from_handle (lh);
170 app_listener = app_listener_get (app, al_index);
171 app_listener->local_index = ls->session_index;
172 app_listener->ls_handle = lh;
173 ls->al_index = al_index;
175 table_index = application_local_session_table (app);
176 session_lookup_add_session_endpoint (table_index,
177 (session_endpoint_t *) sep, lh);
180 if (application_has_global_scope (app))
183 * Start listening on local endpoint for requested transport and scope.
184 * Creates a stream session with state LISTENING to be used in session
185 * lookups, prior to establishing connection. Requests transport to
186 * build it's own specific listening connection.
188 ls = listen_session_alloc (0, st);
189 ls->app_index = app->app_index;
190 ls->app_wrk_index = sep->app_wrk_index;
192 /* Listen pool can be reallocated if the transport is
194 lh = listen_session_get_handle (ls);
196 if ((rv = session_listen (ls, sep)))
198 ls = listen_session_get_from_handle (lh);
202 ls = listen_session_get_from_handle (lh);
203 app_listener = app_listener_get (app, al_index);
204 app_listener->session_index = ls->session_index;
205 app_listener->ls_handle = lh;
206 ls->al_index = al_index;
208 /* Add to the global lookup table after transport was initialized.
209 * Lookup table needs to be populated only now because sessions
210 * with cut-through transport are are added to app local tables that
211 * are not related to network fibs, i.e., cannot be added as
213 tc = session_get_transport (ls);
214 if (!(tc->flags & TRANSPORT_CONNECTION_F_NO_LOOKUP))
216 fib_protocol_t fib_proto;
217 fib_proto = session_endpoint_fib_proto ((session_endpoint_t *) sep);
218 table_index = session_lookup_get_index_for_fib (fib_proto,
220 ASSERT (table_index != SESSION_TABLE_INVALID_INDEX);
221 session_lookup_add_session_endpoint (table_index,
222 (session_endpoint_t *) sep,
229 app_listener_free (app, app_listener);
233 *listener = app_listener;
238 app_listener_cleanup (app_listener_t * al)
240 application_t *app = application_get (al->app_index);
243 if (al->session_index != SESSION_INVALID_INDEX)
245 ls = session_get (al->session_index, 0);
246 session_stop_listen (ls);
247 listen_session_free (ls);
249 if (al->local_index != SESSION_INVALID_INDEX)
251 session_endpoint_t sep = SESSION_ENDPOINT_NULL;
254 table_index = application_local_session_table (app);
255 ls = listen_session_get (al->local_index);
256 ct_session_endpoint (ls, &sep);
257 session_lookup_del_session_endpoint (table_index, &sep);
258 session_stop_listen (ls);
259 listen_session_free (ls);
261 app_listener_free (app, al);
264 static app_worker_t *
265 app_listener_select_worker (application_t * app, app_listener_t * al)
269 app = application_get (al->app_index);
270 wrk_index = clib_bitmap_next_set (al->workers, al->accept_rotor + 1);
272 wrk_index = clib_bitmap_first_set (al->workers);
274 ASSERT (wrk_index != ~0);
275 al->accept_rotor = wrk_index;
276 return application_get_worker (app, wrk_index);
280 app_listener_get_session (app_listener_t * al)
282 if (al->session_index == SESSION_INVALID_INDEX)
285 return listen_session_get (al->session_index);
289 app_listener_get_local_session (app_listener_t * al)
291 if (al->local_index == SESSION_INVALID_INDEX)
293 return listen_session_get (al->local_index);
296 static app_worker_map_t *
297 app_worker_map_alloc (application_t * app)
299 app_worker_map_t *map;
300 pool_get (app->worker_maps, map);
301 clib_memset (map, 0, sizeof (*map));
306 app_worker_map_index (application_t * app, app_worker_map_t * map)
308 return (map - app->worker_maps);
312 app_worker_map_free (application_t * app, app_worker_map_t * map)
314 pool_put (app->worker_maps, map);
317 static app_worker_map_t *
318 app_worker_map_get (application_t * app, u32 map_index)
320 if (pool_is_free_index (app->worker_maps, map_index))
322 return pool_elt_at_index (app->worker_maps, map_index);
326 app_get_name (application_t * app)
332 application_session_table (application_t * app, u8 fib_proto)
334 app_namespace_t *app_ns;
335 app_ns = app_namespace_get (app->ns_index);
336 if (!application_has_global_scope (app))
337 return APP_INVALID_INDEX;
338 if (fib_proto == FIB_PROTOCOL_IP4)
339 return session_lookup_get_index_for_fib (fib_proto,
340 app_ns->ip4_fib_index);
342 return session_lookup_get_index_for_fib (fib_proto,
343 app_ns->ip6_fib_index);
347 application_local_session_table (application_t * app)
349 app_namespace_t *app_ns;
350 if (!application_has_local_scope (app))
351 return APP_INVALID_INDEX;
352 app_ns = app_namespace_get (app->ns_index);
353 return app_ns->local_table_index;
357 * Returns app name for app-index
360 application_name_from_index (u32 app_index)
362 application_t *app = application_get (app_index);
365 return app_get_name (app);
369 application_api_table_add (u32 app_index, u32 api_client_index)
371 if (api_client_index != APP_INVALID_INDEX)
372 hash_set (app_main.app_by_api_client_index, api_client_index, app_index);
376 application_api_table_del (u32 api_client_index)
378 hash_unset (app_main.app_by_api_client_index, api_client_index);
382 application_name_table_add (application_t * app)
384 hash_set_mem (app_main.app_by_name, app->name, app->app_index);
388 application_name_table_del (application_t * app)
390 hash_unset_mem (app_main.app_by_name, app->name);
394 application_lookup (u32 api_client_index)
397 p = hash_get (app_main.app_by_api_client_index, api_client_index);
399 return application_get_if_valid (p[0]);
405 application_lookup_name (const u8 * name)
408 p = hash_get_mem (app_main.app_by_name, name);
410 return application_get (p[0]);
415 static application_t *
416 application_alloc (void)
419 pool_get (app_main.app_pool, app);
420 clib_memset (app, 0, sizeof (*app));
421 app->app_index = app - app_main.app_pool;
426 application_get (u32 app_index)
428 if (app_index == APP_INVALID_INDEX)
430 return pool_elt_at_index (app_main.app_pool, app_index);
434 application_get_if_valid (u32 app_index)
436 if (pool_is_free_index (app_main.app_pool, app_index))
439 return pool_elt_at_index (app_main.app_pool, app_index);
443 application_verify_cb_fns (session_cb_vft_t * cb_fns)
445 if (cb_fns->session_accept_callback == 0)
446 clib_warning ("No accept callback function provided");
447 if (cb_fns->session_connected_callback == 0)
448 clib_warning ("No session connected callback function provided");
449 if (cb_fns->session_disconnect_callback == 0)
450 clib_warning ("No session disconnect callback function provided");
451 if (cb_fns->session_reset_callback == 0)
452 clib_warning ("No session reset callback function provided");
456 * Check app config for given segment type
458 * Returns 1 on success and 0 otherwise
461 application_verify_cfg (ssvm_segment_type_t st)
464 if (st == SSVM_SEGMENT_MEMFD)
466 is_valid = (session_main_get_evt_q_segment () != 0);
468 clib_warning ("memfd seg: vpp's event qs IN binary api svm region");
471 else if (st == SSVM_SEGMENT_SHM)
473 is_valid = (session_main_get_evt_q_segment () == 0);
475 clib_warning ("shm seg: vpp's event qs NOT IN binary api svm region");
483 application_alloc_and_init (app_init_args_t * a)
485 ssvm_segment_type_t seg_type = SSVM_SEGMENT_MEMFD;
486 segment_manager_props_t *props;
487 vl_api_registration_t *reg;
491 app = application_alloc ();
492 options = a->options;
494 * Make sure we support the requested configuration
496 if (options[APP_OPTIONS_FLAGS] & APP_OPTIONS_FLAGS_IS_BUILTIN)
498 seg_type = SSVM_SEGMENT_PRIVATE;
500 else if (!a->use_sock_api)
502 reg = vl_api_client_index_to_registration (a->api_client_index);
504 return VNET_API_ERROR_APP_UNSUPPORTED_CFG;
505 if (vl_api_registration_file_index (reg) == VL_API_INVALID_FI)
506 seg_type = SSVM_SEGMENT_SHM;
509 if ((options[APP_OPTIONS_FLAGS] & APP_OPTIONS_FLAGS_EVT_MQ_USE_EVENTFD)
510 && seg_type != SSVM_SEGMENT_MEMFD)
512 clib_warning ("mq eventfds can only be used if socket transport is "
513 "used for binary api");
514 return VNET_API_ERROR_APP_UNSUPPORTED_CFG;
517 if (!application_verify_cfg (seg_type))
518 return VNET_API_ERROR_APP_UNSUPPORTED_CFG;
520 if (options[APP_OPTIONS_PREALLOC_FIFO_PAIRS]
521 && options[APP_OPTIONS_PREALLOC_FIFO_HDRS])
522 return VNET_API_ERROR_APP_UNSUPPORTED_CFG;
524 /* Check that the obvious things are properly set up */
525 application_verify_cb_fns (a->session_cb_vft);
527 app->flags = options[APP_OPTIONS_FLAGS];
528 app->cb_fns = *a->session_cb_vft;
529 app->ns_index = options[APP_OPTIONS_NAMESPACE];
530 app->proxied_transports = options[APP_OPTIONS_PROXY_TRANSPORT];
531 app->name = vec_dup (a->name);
533 /* If no scope enabled, default to global */
534 if (!application_has_global_scope (app)
535 && !application_has_local_scope (app))
536 app->flags |= APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
538 props = application_segment_manager_properties (app);
539 segment_manager_props_init (props);
540 props->segment_size = options[APP_OPTIONS_SEGMENT_SIZE];
541 props->prealloc_fifos = options[APP_OPTIONS_PREALLOC_FIFO_PAIRS];
542 props->prealloc_fifo_hdrs = options[APP_OPTIONS_PREALLOC_FIFO_HDRS];
543 if (options[APP_OPTIONS_ADD_SEGMENT_SIZE])
545 props->add_segment_size = options[APP_OPTIONS_ADD_SEGMENT_SIZE];
546 props->add_segment = 1;
548 if (options[APP_OPTIONS_RX_FIFO_SIZE])
549 props->rx_fifo_size = options[APP_OPTIONS_RX_FIFO_SIZE];
550 if (options[APP_OPTIONS_TX_FIFO_SIZE])
551 props->tx_fifo_size = options[APP_OPTIONS_TX_FIFO_SIZE];
552 if (options[APP_OPTIONS_EVT_QUEUE_SIZE])
553 props->evt_q_size = options[APP_OPTIONS_EVT_QUEUE_SIZE];
554 if (options[APP_OPTIONS_FLAGS] & APP_OPTIONS_FLAGS_EVT_MQ_USE_EVENTFD)
555 props->use_mq_eventfd = 1;
556 if (options[APP_OPTIONS_TLS_ENGINE])
557 app->tls_engine = options[APP_OPTIONS_TLS_ENGINE];
558 if (options[APP_OPTIONS_MAX_FIFO_SIZE])
559 props->max_fifo_size = options[APP_OPTIONS_MAX_FIFO_SIZE];
560 if (options[APP_OPTIONS_HIGH_WATERMARK])
561 props->high_watermark = options[APP_OPTIONS_HIGH_WATERMARK];
562 if (options[APP_OPTIONS_LOW_WATERMARK])
563 props->low_watermark = options[APP_OPTIONS_LOW_WATERMARK];
564 if (options[APP_OPTIONS_PCT_FIRST_ALLOC])
565 props->pct_first_alloc = options[APP_OPTIONS_PCT_FIRST_ALLOC];
566 props->segment_type = seg_type;
568 /* Add app to lookup by api_client_index table */
569 if (!application_is_builtin (app))
570 application_api_table_add (app->app_index, a->api_client_index);
572 application_name_table_add (app);
574 a->app_index = app->app_index;
576 APP_DBG ("New app name: %v api index: %u index %u", app->name,
577 a->api_client_index, app->app_index);
583 application_free (application_t * app)
585 app_worker_map_t *wrk_map;
586 app_worker_t *app_wrk;
589 * The app event queue allocated in first segment is cleared with
590 * the segment manager. No need to explicitly free it.
592 APP_DBG ("Delete app name %v index: %d", app->name, 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 pool_put (app_main.app_pool, app);
619 application_detach_process (application_t * app, u32 api_client_index)
621 vnet_app_worker_add_del_args_t _args = { 0 }, *args = &_args;
622 app_worker_map_t *wrk_map;
623 u32 *wrks = 0, *wrk_index;
624 app_worker_t *app_wrk;
626 if (api_client_index == ~0)
628 application_free (app);
632 APP_DBG ("Detaching for app %v index %u api client index %u", app->name,
633 app->app_index, api_client_index);
636 pool_foreach (wrk_map, app->worker_maps, ({
637 app_wrk = app_worker_get (wrk_map->wrk_index);
638 if (app_wrk->api_client_index == api_client_index)
639 vec_add1 (wrks, app_wrk->wrk_index);
645 clib_warning ("no workers for app %u api_index %u", app->app_index,
650 args->app_index = app->app_index;
651 args->api_client_index = api_client_index;
652 vec_foreach (wrk_index, wrks)
654 app_wrk = app_worker_get (wrk_index[0]);
655 args->wrk_map_index = app_wrk->wrk_map_index;
657 vnet_app_worker_add_del (args);
663 application_get_worker (application_t * app, u32 wrk_map_index)
665 app_worker_map_t *map;
666 map = app_worker_map_get (app, wrk_map_index);
669 return app_worker_get (map->wrk_index);
673 application_get_default_worker (application_t * app)
675 return application_get_worker (app, 0);
679 application_n_workers (application_t * app)
681 return pool_elts (app->worker_maps);
685 application_listener_select_worker (session_t * ls)
690 app = application_get (ls->app_index);
691 al = app_listener_get (app, ls->al_index);
692 return app_listener_select_worker (app, 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_alloc ();
712 sm->app_wrk_index = app_wrk->wrk_index;
714 if ((rv = segment_manager_init (sm)))
716 app_worker_free (app_wrk);
719 sm->first_is_protected = 1;
724 app_wrk->first_segment_manager = segment_manager_index (sm);
725 app_wrk->listeners_table = hash_create (0, sizeof (u64));
726 app_wrk->event_queue = segment_manager_event_queue (sm);
727 app_wrk->app_is_builtin = application_is_builtin (app);
735 vnet_app_worker_add_del (vnet_app_worker_add_del_args_t * a)
738 app_worker_map_t *wrk_map;
739 app_worker_t *app_wrk;
740 segment_manager_t *sm;
744 app = application_get (a->app_index);
746 return VNET_API_ERROR_INVALID_VALUE;
750 if ((rv = application_alloc_worker_and_init (app, &app_wrk)))
753 /* Map worker api index to the app */
754 app_wrk->api_client_index = a->api_client_index;
755 application_api_table_add (app->app_index, a->api_client_index);
757 sm = segment_manager_get (app_wrk->first_segment_manager);
758 fs = segment_manager_get_segment_w_lock (sm, 0);
759 a->segment = &fs->ssvm;
760 a->segment_handle = segment_manager_segment_handle (sm, fs);
761 segment_manager_segment_reader_unlock (sm);
762 a->evt_q = app_wrk->event_queue;
763 a->wrk_map_index = app_wrk->wrk_map_index;
767 wrk_map = app_worker_map_get (app, a->wrk_map_index);
769 return VNET_API_ERROR_INVALID_VALUE;
771 app_wrk = app_worker_get (wrk_map->wrk_index);
773 return VNET_API_ERROR_INVALID_VALUE;
775 application_api_table_del (app_wrk->api_client_index);
776 app_worker_free (app_wrk);
777 app_worker_map_free (app, wrk_map);
778 if (application_n_workers (app) == 0)
779 application_free (app);
785 app_validate_namespace (u8 * namespace_id, u64 secret, u32 * app_ns_index)
787 app_namespace_t *app_ns;
788 if (vec_len (namespace_id) == 0)
790 /* Use default namespace */
795 *app_ns_index = app_namespace_index_from_id (namespace_id);
796 if (*app_ns_index == APP_NAMESPACE_INVALID_INDEX)
797 return VNET_API_ERROR_APP_INVALID_NS;
798 app_ns = app_namespace_get (*app_ns_index);
800 return VNET_API_ERROR_APP_INVALID_NS;
801 if (app_ns->ns_secret != secret)
802 return VNET_API_ERROR_APP_WRONG_NS_SECRET;
807 app_name_from_api_index (u32 api_client_index)
809 vl_api_registration_t *regp;
810 regp = vl_api_client_index_to_registration (api_client_index);
812 return format (0, "%s", regp->name);
814 clib_warning ("api client index %u does not have an api registration!",
816 return format (0, "unknown");
820 * Attach application to vpp
822 * Allocates a vpp app, i.e., a structure that keeps back pointers
823 * to external app and a segment manager for shared memory fifo based
824 * communication with the external app.
827 vnet_application_attach (vnet_app_attach_args_t * a)
830 application_t *app = 0;
831 app_worker_t *app_wrk;
832 segment_manager_t *sm;
833 u32 app_ns_index = 0;
838 if (a->api_client_index != APP_INVALID_INDEX)
839 app = application_lookup (a->api_client_index);
841 app = application_lookup_name (a->name);
843 return VNET_API_ERROR_INVALID_VALUE;
846 return VNET_API_ERROR_APP_ALREADY_ATTACHED;
848 /* Socket api sets the name and validates namespace prior to attach */
849 if (!a->use_sock_api)
851 if (a->api_client_index != APP_INVALID_INDEX)
853 app_name = app_name_from_api_index (a->api_client_index);
857 secret = a->options[APP_OPTIONS_NAMESPACE_SECRET];
859 app_validate_namespace (a->namespace_id, secret, &app_ns_index)))
861 a->options[APP_OPTIONS_NAMESPACE] = app_ns_index;
864 if ((rv = application_alloc_and_init ((app_init_args_t *) a)))
867 app = application_get (a->app_index);
868 if ((rv = application_alloc_worker_and_init (app, &app_wrk)))
871 a->app_evt_q = app_wrk->event_queue;
872 app_wrk->api_client_index = a->api_client_index;
873 sm = segment_manager_get (app_wrk->first_segment_manager);
874 fs = segment_manager_get_segment_w_lock (sm, 0);
876 if (application_is_proxy (app))
878 application_setup_proxy (app);
880 * I suspect the segment manager pool gets reallocated (because a new listener
881 * is added, and each listener has a segment manager) so sm becomes a dangling
882 * reference. That's why we need to re-grab sm.
884 sm = segment_manager_get (app_wrk->first_segment_manager);
887 ASSERT (vec_len (fs->ssvm.name) <= 128);
888 a->segment = &fs->ssvm;
889 a->segment_handle = segment_manager_segment_handle (sm, fs);
891 segment_manager_segment_reader_unlock (sm);
897 * Detach application from vpp
900 vnet_application_detach (vnet_app_detach_args_t * a)
904 app = application_get_if_valid (a->app_index);
907 clib_warning ("app not attached");
908 return VNET_API_ERROR_APPLICATION_NOT_ATTACHED;
911 app_interface_check_thread_and_barrier (vnet_application_detach, a);
912 application_detach_process (app, a->api_client_index);
918 session_endpoint_in_ns (session_endpoint_t * sep)
920 u8 is_lep = session_endpoint_is_local (sep);
921 if (!is_lep && sep->sw_if_index != ENDPOINT_INVALID_INDEX
922 && !ip_interface_has_address (sep->sw_if_index, &sep->ip, sep->is_ip4))
924 clib_warning ("sw_if_index %u not configured with ip %U",
925 sep->sw_if_index, format_ip46_address, &sep->ip,
929 return (is_lep || ip_is_local (sep->fib_index, &sep->ip, sep->is_ip4));
933 session_endpoint_update_for_app (session_endpoint_cfg_t * sep,
934 application_t * app, u8 is_connect)
936 app_namespace_t *app_ns;
937 u32 ns_index, fib_index;
939 ns_index = app->ns_index;
941 /* App is a transport proto, so fetch the calling app's ns */
942 if (app->flags & APP_OPTIONS_FLAGS_IS_TRANSPORT_APP)
943 ns_index = sep->ns_index;
945 app_ns = app_namespace_get (ns_index);
949 /* Ask transport and network to bind to/connect using local interface
950 * that "supports" app's namespace. This will fix our local connection
954 /* If in default namespace and user requested a fib index use it */
955 if (ns_index == 0 && sep->fib_index != ENDPOINT_INVALID_INDEX)
956 fib_index = sep->fib_index;
958 fib_index = sep->is_ip4 ? app_ns->ip4_fib_index : app_ns->ip6_fib_index;
959 sep->peer.fib_index = fib_index;
960 sep->fib_index = fib_index;
964 sep->sw_if_index = app_ns->sw_if_index;
968 if (app_ns->sw_if_index != APP_NAMESPACE_INVALID_INDEX
969 && sep->peer.sw_if_index != ENDPOINT_INVALID_INDEX
970 && sep->peer.sw_if_index != app_ns->sw_if_index)
971 clib_warning ("Local sw_if_index different from app ns sw_if_index");
973 sep->peer.sw_if_index = app_ns->sw_if_index;
978 vnet_listen (vnet_listen_args_t * a)
980 app_listener_t *app_listener;
981 app_worker_t *app_wrk;
985 ASSERT (vlib_thread_is_main_w_barrier ());
987 app = application_get_if_valid (a->app_index);
989 return SESSION_E_NOAPP;
991 app_wrk = application_get_worker (app, a->wrk_map_index);
993 return SESSION_E_INVALID_APPWRK;
995 a->sep_ext.app_wrk_index = app_wrk->wrk_index;
997 session_endpoint_update_for_app (&a->sep_ext, app, 0 /* is_connect */ );
998 if (!session_endpoint_in_ns (&a->sep))
999 return SESSION_E_INVALID_NS;
1002 * Check if we already have an app listener
1004 app_listener = app_listener_lookup (app, &a->sep_ext);
1007 if (app_listener->app_index != app->app_index)
1008 return SESSION_E_ALREADY_LISTENING;
1009 if ((rv = app_worker_start_listen (app_wrk, app_listener)))
1011 a->handle = app_listener_handle (app_listener);
1016 * Create new app listener
1018 if ((rv = app_listener_alloc_and_init (app, &a->sep_ext, &app_listener)))
1021 if ((rv = app_worker_start_listen (app_wrk, app_listener)))
1023 app_listener_cleanup (app_listener);
1027 a->handle = app_listener_handle (app_listener);
1032 vnet_connect (vnet_connect_args_t * a)
1034 app_worker_t *client_wrk;
1035 application_t *client;
1037 ASSERT (vlib_thread_is_main_w_barrier ());
1039 if (session_endpoint_is_zero (&a->sep))
1040 return SESSION_E_INVALID_RMT_IP;
1042 client = application_get (a->app_index);
1043 session_endpoint_update_for_app (&a->sep_ext, client, 1 /* is_connect */ );
1044 client_wrk = application_get_worker (client, a->wrk_map_index);
1047 * First check the local scope for locally attached destinations.
1048 * If we have local scope, we pass *all* connects through it since we may
1049 * have special policy rules even for non-local destinations, think proxy.
1051 if (application_has_local_scope (client))
1055 a->sep_ext.original_tp = a->sep_ext.transport_proto;
1056 a->sep_ext.transport_proto = TRANSPORT_PROTO_NONE;
1057 rv = app_worker_connect_session (client_wrk, &a->sep, a->api_context);
1060 a->sep_ext.transport_proto = a->sep_ext.original_tp;
1063 * Not connecting to a local server, propagate to transport
1065 return app_worker_connect_session (client_wrk, &a->sep, a->api_context);
1069 vnet_unlisten (vnet_unlisten_args_t * a)
1071 app_worker_t *app_wrk;
1075 ASSERT (vlib_thread_is_main_w_barrier ());
1077 if (!(app = application_get_if_valid (a->app_index)))
1078 return SESSION_E_NOAPP;
1080 if (!(al = app_listener_get_w_handle (a->handle)))
1081 return SESSION_E_NOLISTEN;
1083 if (al->app_index != app->app_index)
1085 clib_warning ("app doesn't own handle %llu!", a->handle);
1086 return SESSION_E_OWNER;
1089 app_wrk = application_get_worker (app, a->wrk_map_index);
1092 clib_warning ("no app %u worker %u", app->app_index, a->wrk_map_index);
1093 return SESSION_E_INVALID_APPWRK;
1096 return app_worker_stop_listen (app_wrk, al);
1100 vnet_disconnect_session (vnet_disconnect_args_t * a)
1102 app_worker_t *app_wrk;
1105 s = session_get_from_handle_if_valid (a->handle);
1107 return SESSION_E_NOSESSION;
1109 app_wrk = app_worker_get (s->app_wrk_index);
1110 if (app_wrk->app_index != a->app_index)
1111 return SESSION_E_OWNER;
1113 /* We're peeking into another's thread pool. Make sure */
1114 ASSERT (s->session_index == session_index_from_handle (a->handle));
1121 application_change_listener_owner (session_t * s, app_worker_t * app_wrk)
1123 app_worker_t *old_wrk = app_worker_get (s->app_wrk_index);
1124 app_listener_t *app_listener;
1129 return SESSION_E_INVALID_APPWRK;
1131 hash_unset (old_wrk->listeners_table, listen_session_get_handle (s));
1132 if (session_transport_service_type (s) == TRANSPORT_SERVICE_CL
1134 segment_manager_dealloc_fifos (s->rx_fifo, s->tx_fifo);
1136 app = application_get (old_wrk->app_index);
1138 return SESSION_E_NOAPP;
1140 app_listener = app_listener_get (app, s->al_index);
1142 /* Only remove from lb for now */
1143 app_listener->workers = clib_bitmap_set (app_listener->workers,
1144 old_wrk->wrk_map_index, 0);
1146 if ((rv = app_worker_start_listen (app_wrk, app_listener)))
1149 s->app_wrk_index = app_wrk->wrk_index;
1155 application_is_proxy (application_t * app)
1157 return (app->flags & APP_OPTIONS_FLAGS_IS_PROXY);
1161 application_is_builtin (application_t * app)
1163 return (app->flags & APP_OPTIONS_FLAGS_IS_BUILTIN);
1167 application_is_builtin_proxy (application_t * app)
1169 return (application_is_proxy (app) && application_is_builtin (app));
1173 application_has_local_scope (application_t * app)
1175 return app->flags & APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE;
1179 application_has_global_scope (application_t * app)
1181 return app->flags & APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
1184 static clib_error_t *
1185 application_start_stop_proxy_fib_proto (application_t * app, u8 fib_proto,
1186 u8 transport_proto, u8 is_start)
1188 app_namespace_t *app_ns = app_namespace_get (app->ns_index);
1189 u8 is_ip4 = (fib_proto == FIB_PROTOCOL_IP4);
1190 session_endpoint_cfg_t sep = SESSION_ENDPOINT_CFG_NULL;
1191 transport_connection_t *tc;
1192 app_worker_t *app_wrk;
1197 /* TODO decide if we want proxy to be enabled for all workers */
1198 app_wrk = application_get_default_worker (app);
1201 s = app_worker_first_listener (app_wrk, fib_proto, transport_proto);
1204 sep.is_ip4 = is_ip4;
1205 sep.fib_index = app_namespace_get_fib_index (app_ns, fib_proto);
1206 sep.sw_if_index = app_ns->sw_if_index;
1207 sep.transport_proto = transport_proto;
1208 sep.app_wrk_index = app_wrk->wrk_index; /* only default */
1210 /* force global scope listener */
1212 app->flags &= ~APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE;
1213 app_listener_alloc_and_init (app, &sep, &al);
1216 app_worker_start_listen (app_wrk, al);
1217 s = listen_session_get (al->session_index);
1218 s->flags |= SESSION_F_PROXY;
1223 s = app_worker_proxy_listener (app_wrk, fib_proto, transport_proto);
1227 tc = listen_session_get_transport (s);
1229 if (!ip_is_zero (&tc->lcl_ip, 1))
1232 sep.is_ip4 = is_ip4;
1233 sep.fib_index = app_namespace_get_fib_index (app_ns, fib_proto);
1234 sep.transport_proto = transport_proto;
1236 sti = session_lookup_get_index_for_fib (fib_proto, sep.fib_index);
1238 session_lookup_add_session_endpoint (sti,
1239 (session_endpoint_t *) & sep,
1242 session_lookup_del_session_endpoint (sti,
1243 (session_endpoint_t *) & sep);
1250 application_start_stop_proxy_local_scope (application_t * app,
1251 u8 transport_proto, u8 is_start)
1253 session_endpoint_t sep = SESSION_ENDPOINT_NULL;
1254 app_namespace_t *app_ns;
1255 app_ns = app_namespace_get (app->ns_index);
1257 sep.transport_proto = transport_proto;
1262 session_lookup_add_session_endpoint (app_ns->local_table_index, &sep,
1265 session_lookup_add_session_endpoint (app_ns->local_table_index, &sep,
1270 session_lookup_del_session_endpoint (app_ns->local_table_index, &sep);
1272 session_lookup_del_session_endpoint (app_ns->local_table_index, &sep);
1277 application_start_stop_proxy (application_t * app,
1278 transport_proto_t transport_proto, u8 is_start)
1280 if (application_has_local_scope (app))
1281 application_start_stop_proxy_local_scope (app, transport_proto, is_start);
1283 if (application_has_global_scope (app))
1285 application_start_stop_proxy_fib_proto (app, FIB_PROTOCOL_IP4,
1286 transport_proto, is_start);
1287 application_start_stop_proxy_fib_proto (app, FIB_PROTOCOL_IP6,
1288 transport_proto, is_start);
1293 application_setup_proxy (application_t * app)
1295 u16 transports = app->proxied_transports;
1296 transport_proto_t tp;
1298 ASSERT (application_is_proxy (app));
1301 transport_proto_foreach (tp, ({
1302 if (transports & (1 << tp))
1303 application_start_stop_proxy (app, tp, 1);
1309 application_remove_proxy (application_t * app)
1311 u16 transports = app->proxied_transports;
1312 transport_proto_t tp;
1314 ASSERT (application_is_proxy (app));
1317 transport_proto_foreach (tp, ({
1318 if (transports & (1 << tp))
1319 application_start_stop_proxy (app, tp, 0);
1324 segment_manager_props_t *
1325 application_segment_manager_properties (application_t * app)
1327 return &app->sm_properties;
1330 segment_manager_props_t *
1331 application_get_segment_manager_properties (u32 app_index)
1333 application_t *app = application_get (app_index);
1334 return &app->sm_properties;
1338 vnet_app_add_tls_cert (vnet_app_add_tls_cert_args_t * a)
1340 /* Deprected, will be remove after 20.01 */
1341 app_cert_key_pair_t *ckpair;
1342 ckpair = app_cert_key_pair_get_default ();
1343 ckpair->cert = vec_dup (a->cert);
1348 vnet_app_add_tls_key (vnet_app_add_tls_key_args_t * a)
1350 /* Deprected, will be remove after 20.01 */
1351 app_cert_key_pair_t *ckpair;
1352 ckpair = app_cert_key_pair_get_default ();
1353 ckpair->key = vec_dup (a->key);
1358 application_format_listeners (application_t * app, int verbose)
1360 vlib_main_t *vm = vlib_get_main ();
1361 app_worker_map_t *wrk_map;
1362 app_worker_t *app_wrk;
1368 vlib_cli_output (vm, "%U", format_app_worker_listener, 0 /* header */ ,
1374 pool_foreach (wrk_map, app->worker_maps, ({
1375 app_wrk = app_worker_get (wrk_map->wrk_index);
1376 if (hash_elts (app_wrk->listeners_table) == 0)
1378 hash_foreach (handle, sm_index, app_wrk->listeners_table, ({
1379 vlib_cli_output (vm, "%U", format_app_worker_listener, app_wrk,
1380 handle, sm_index, verbose);
1387 application_format_connects (application_t * app, int verbose)
1389 app_worker_map_t *wrk_map;
1390 app_worker_t *app_wrk;
1394 app_worker_format_connects (0, verbose);
1399 pool_foreach (wrk_map, app->worker_maps, ({
1400 app_wrk = app_worker_get (wrk_map->wrk_index);
1401 app_worker_format_connects (app_wrk, verbose);
1407 format_cert_key_pair (u8 * s, va_list * args)
1409 app_cert_key_pair_t *ckpair = va_arg (*args, app_cert_key_pair_t *);
1410 int key_len = 0, cert_len = 0;
1411 cert_len = vec_len (ckpair->cert);
1412 key_len = vec_len (ckpair->key);
1413 if (ckpair->cert_key_index == 0)
1414 s = format (s, "DEFAULT (cert:%d, key:%d)", cert_len, key_len);
1416 s = format (s, "%d (cert:%d, key:%d)", ckpair->cert_key_index,
1422 format_crypto_engine (u8 * s, va_list * args)
1424 u32 engine = va_arg (*args, u32);
1427 case CRYPTO_ENGINE_NONE:
1428 return format (s, "none");
1429 case CRYPTO_ENGINE_MBEDTLS:
1430 return format (s, "mbedtls");
1431 case CRYPTO_ENGINE_OPENSSL:
1432 return format (s, "openssl");
1433 case CRYPTO_ENGINE_PICOTLS:
1434 return format (s, "picotls");
1435 case CRYPTO_ENGINE_VPP:
1436 return format (s, "vpp");
1438 return format (s, "unknown engine");
1444 unformat_crypto_engine (unformat_input_t * input, va_list * args)
1446 u8 *a = va_arg (*args, u8 *);
1447 if (unformat (input, "mbedtls"))
1448 *a = CRYPTO_ENGINE_MBEDTLS;
1449 else if (unformat (input, "openssl"))
1450 *a = CRYPTO_ENGINE_OPENSSL;
1451 else if (unformat (input, "picotls"))
1452 *a = CRYPTO_ENGINE_PICOTLS;
1453 else if (unformat (input, "vpp"))
1454 *a = CRYPTO_ENGINE_VPP;
1461 format_crypto_context (u8 * s, va_list * args)
1463 crypto_context_t *crctx = va_arg (*args, crypto_context_t *);
1464 s = format (s, "[0x%x][sub%d,ckpair%x]", crctx->ctx_index,
1465 crctx->n_subscribers, crctx->ckpair_index);
1466 s = format (s, "[%U]", format_crypto_engine, crctx->crypto_engine);
1471 format_application (u8 * s, va_list * args)
1473 application_t *app = va_arg (*args, application_t *);
1474 CLIB_UNUSED (int verbose) = va_arg (*args, int);
1475 segment_manager_props_t *props;
1476 const u8 *app_ns_name, *app_name;
1477 app_worker_map_t *wrk_map;
1478 app_worker_t *app_wrk;
1483 s = format (s, "%-10s%-20s%-40s", "Index", "Name", "Namespace");
1487 app_name = app_get_name (app);
1488 app_ns_name = app_namespace_id_from_index (app->ns_index);
1489 props = application_segment_manager_properties (app);
1492 s = format (s, "%-10u%-20v%-40v", app->app_index, app_name,
1497 s = format (s, "app-name %v app-index %u ns-index %u seg-size %U\n",
1498 app_name, app->app_index, app->ns_index,
1499 format_memory_size, props->add_segment_size);
1500 s = format (s, "rx-fifo-size %U tx-fifo-size %U workers:\n",
1501 format_memory_size, props->rx_fifo_size,
1502 format_memory_size, props->tx_fifo_size);
1505 pool_foreach (wrk_map, app->worker_maps, ({
1506 app_wrk = app_worker_get (wrk_map->wrk_index);
1507 s = format (s, "%U", format_app_worker, app_wrk);
1515 application_format_all_listeners (vlib_main_t * vm, int verbose)
1519 if (!pool_elts (app_main.app_pool))
1521 vlib_cli_output (vm, "No active server bindings");
1525 application_format_listeners (0, verbose);
1528 pool_foreach (app, app_main.app_pool, ({
1529 application_format_listeners (app, verbose);
1535 application_format_all_clients (vlib_main_t * vm, int verbose)
1539 if (!pool_elts (app_main.app_pool))
1541 vlib_cli_output (vm, "No active apps");
1545 application_format_connects (0, verbose);
1548 pool_foreach (app, app_main.app_pool, ({
1549 application_format_connects (app, verbose);
1554 static clib_error_t *
1555 show_certificate_command_fn (vlib_main_t * vm, unformat_input_t * input,
1556 vlib_cli_command_t * cmd)
1558 app_cert_key_pair_t *ckpair;
1559 session_cli_return_if_not_enabled ();
1562 pool_foreach (ckpair, app_main.cert_key_pair_store, ({
1563 vlib_cli_output (vm, "%U", format_cert_key_pair, ckpair);
1570 appliction_format_app_mq (vlib_main_t * vm, application_t * app)
1572 app_worker_map_t *map;
1575 pool_foreach (map, app->worker_maps, ({
1576 wrk = app_worker_get (map->wrk_index);
1577 vlib_cli_output (vm, "[A%d][%d]%U", app->app_index,
1578 map->wrk_index, format_svm_msg_q,
1584 static clib_error_t *
1585 appliction_format_all_app_mq (vlib_main_t * vm)
1590 n_threads = vec_len (vlib_mains);
1592 for (i = 0; i < n_threads; i++)
1594 vlib_cli_output (vm, "[Ctrl%d]%U", i, format_svm_msg_q,
1595 session_main_get_vpp_event_queue (i));
1599 pool_foreach (app, app_main.app_pool, ({
1600 appliction_format_app_mq (vm, app);
1606 static clib_error_t *
1607 show_app_command_fn (vlib_main_t * vm, unformat_input_t * input,
1608 vlib_cli_command_t * cmd)
1610 int do_server = 0, do_client = 0, do_mq = 0;
1615 session_cli_return_if_not_enabled ();
1617 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1619 if (unformat (input, "server"))
1621 else if (unformat (input, "client"))
1623 else if (unformat (input, "mq"))
1625 else if (unformat (input, "%u", &app_index))
1627 else if (unformat (input, "verbose"))
1630 return clib_error_return (0, "unknown input `%U'",
1631 format_unformat_error, input);
1634 if (do_mq && app_index != ~0)
1636 app = application_get_if_valid (app_index);
1638 return clib_error_return (0, "No app with index %u", app_index);
1640 appliction_format_app_mq (vm, app);
1646 appliction_format_all_app_mq (vm);
1652 application_format_all_listeners (vm, verbose);
1658 application_format_all_clients (vm, verbose);
1662 if (app_index != ~0)
1664 app = application_get_if_valid (app_index);
1666 return clib_error_return (0, "No app with index %u", app_index);
1668 vlib_cli_output (vm, "%U", format_application, app, /* verbose */ 1);
1672 /* Print app related info */
1673 if (!do_server && !do_client)
1675 vlib_cli_output (vm, "%U", format_application, 0, 0);
1677 pool_foreach (app, app_main.app_pool, ({
1678 vlib_cli_output (vm, "%U", format_application, app, 0);
1686 /* Certificate store */
1688 static app_cert_key_pair_t *
1689 app_cert_key_pair_alloc ()
1691 app_cert_key_pair_t *ckpair;
1692 pool_get (app_main.cert_key_pair_store, ckpair);
1693 clib_memset (ckpair, 0, sizeof (*ckpair));
1694 ckpair->cert_key_index = ckpair - app_main.cert_key_pair_store;
1698 app_cert_key_pair_t *
1699 app_cert_key_pair_get_if_valid (u32 index)
1701 if (pool_is_free_index (app_main.cert_key_pair_store, index))
1703 return app_cert_key_pair_get (index);
1706 app_cert_key_pair_t *
1707 app_cert_key_pair_get (u32 index)
1709 return pool_elt_at_index (app_main.cert_key_pair_store, index);
1712 app_cert_key_pair_t *
1713 app_cert_key_pair_get_default ()
1715 /* To maintain legacy bapi */
1716 return app_cert_key_pair_get (0);
1720 vnet_app_add_cert_key_pair (vnet_app_add_cert_key_pair_args_t * a)
1722 app_cert_key_pair_t *ckpair = app_cert_key_pair_alloc ();
1723 ckpair->cert = vec_dup (a->cert);
1724 ckpair->key = vec_dup (a->key);
1725 a->index = ckpair->cert_key_index;
1730 vnet_app_add_cert_key_interest (u32 index, u32 app_index)
1732 app_cert_key_pair_t *ckpair;
1733 if (!(ckpair = app_cert_key_pair_get_if_valid (index)))
1735 if (vec_search (ckpair->app_interests, app_index) != ~0)
1736 vec_add1 (ckpair->app_interests, app_index);
1741 vnet_app_del_cert_key_pair (u32 index)
1743 app_cert_key_pair_t *ckpair;
1747 if (!(ckpair = app_cert_key_pair_get_if_valid (index)))
1748 return (VNET_API_ERROR_INVALID_VALUE);
1750 vec_foreach (app_index, ckpair->app_interests)
1752 if ((app = application_get_if_valid (*app_index))
1753 && app->cb_fns.app_cert_key_pair_delete_callback)
1754 app->cb_fns.app_cert_key_pair_delete_callback (ckpair);
1757 vec_free (ckpair->cert);
1758 vec_free (ckpair->key);
1759 pool_put (app_main.cert_key_pair_store, ckpair);
1764 application_init (vlib_main_t * vm)
1766 /* Add a certificate with index 0 to support legacy apis */
1767 (void) app_cert_key_pair_alloc ();
1768 app_main.last_crypto_engine = CRYPTO_ENGINE_LAST;
1769 app_main.app_by_name = hash_create_vec (0, sizeof (u8), sizeof (uword));
1774 VLIB_INIT_FUNCTION (application_init);
1776 VLIB_CLI_COMMAND (show_app_command, static) =
1779 .short_help = "show app [app_id] [server|client] [mq] [verbose]",
1780 .function = show_app_command_fn,
1783 VLIB_CLI_COMMAND (show_certificate_command, static) =
1785 .path = "show app certificate",
1786 .short_help = "list app certs and keys present in store",
1787 .function = show_certificate_command_fn,
1791 crypto_engine_type_t
1792 app_crypto_engine_type_add (void)
1794 return (++app_main.last_crypto_engine);
1798 app_crypto_engine_n_types (void)
1800 return (app_main.last_crypto_engine + 1);
1804 * fd.io coding-style-patch-verification: ON
1807 * eval: (c-set-style "gnu")