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;
490 app = application_alloc ();
491 options = a->options;
493 * Make sure we support the requested configuration
495 if (options[APP_OPTIONS_FLAGS] & APP_OPTIONS_FLAGS_IS_BUILTIN)
496 seg_type = SSVM_SEGMENT_PRIVATE;
498 if ((options[APP_OPTIONS_FLAGS] & APP_OPTIONS_FLAGS_EVT_MQ_USE_EVENTFD)
499 && seg_type != SSVM_SEGMENT_MEMFD)
501 clib_warning ("mq eventfds can only be used if socket transport is "
502 "used for binary api");
503 return VNET_API_ERROR_APP_UNSUPPORTED_CFG;
506 if (!application_verify_cfg (seg_type))
507 return VNET_API_ERROR_APP_UNSUPPORTED_CFG;
509 if (options[APP_OPTIONS_PREALLOC_FIFO_PAIRS]
510 && options[APP_OPTIONS_PREALLOC_FIFO_HDRS])
511 return VNET_API_ERROR_APP_UNSUPPORTED_CFG;
513 /* Check that the obvious things are properly set up */
514 application_verify_cb_fns (a->session_cb_vft);
516 app->flags = options[APP_OPTIONS_FLAGS];
517 app->cb_fns = *a->session_cb_vft;
518 app->ns_index = options[APP_OPTIONS_NAMESPACE];
519 app->proxied_transports = options[APP_OPTIONS_PROXY_TRANSPORT];
520 app->name = vec_dup (a->name);
522 /* If no scope enabled, default to global */
523 if (!application_has_global_scope (app)
524 && !application_has_local_scope (app))
525 app->flags |= APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
527 props = application_segment_manager_properties (app);
528 segment_manager_props_init (props);
529 props->segment_size = options[APP_OPTIONS_SEGMENT_SIZE];
530 props->prealloc_fifos = options[APP_OPTIONS_PREALLOC_FIFO_PAIRS];
531 props->prealloc_fifo_hdrs = options[APP_OPTIONS_PREALLOC_FIFO_HDRS];
532 if (options[APP_OPTIONS_ADD_SEGMENT_SIZE])
534 props->add_segment_size = options[APP_OPTIONS_ADD_SEGMENT_SIZE];
535 props->add_segment = 1;
537 if (options[APP_OPTIONS_RX_FIFO_SIZE])
538 props->rx_fifo_size = options[APP_OPTIONS_RX_FIFO_SIZE];
539 if (options[APP_OPTIONS_TX_FIFO_SIZE])
540 props->tx_fifo_size = options[APP_OPTIONS_TX_FIFO_SIZE];
541 if (options[APP_OPTIONS_EVT_QUEUE_SIZE])
542 props->evt_q_size = options[APP_OPTIONS_EVT_QUEUE_SIZE];
543 if (options[APP_OPTIONS_FLAGS] & APP_OPTIONS_FLAGS_EVT_MQ_USE_EVENTFD)
544 props->use_mq_eventfd = 1;
545 if (options[APP_OPTIONS_TLS_ENGINE])
546 app->tls_engine = options[APP_OPTIONS_TLS_ENGINE];
547 if (options[APP_OPTIONS_MAX_FIFO_SIZE])
548 props->max_fifo_size = options[APP_OPTIONS_MAX_FIFO_SIZE];
549 if (options[APP_OPTIONS_HIGH_WATERMARK])
550 props->high_watermark = options[APP_OPTIONS_HIGH_WATERMARK];
551 if (options[APP_OPTIONS_LOW_WATERMARK])
552 props->low_watermark = options[APP_OPTIONS_LOW_WATERMARK];
553 if (options[APP_OPTIONS_PCT_FIRST_ALLOC])
554 props->pct_first_alloc = options[APP_OPTIONS_PCT_FIRST_ALLOC];
555 props->segment_type = seg_type;
557 /* Add app to lookup by api_client_index table */
558 if (!application_is_builtin (app))
559 application_api_table_add (app->app_index, a->api_client_index);
561 application_name_table_add (app);
563 a->app_index = app->app_index;
565 APP_DBG ("New app name: %v api index: %u index %u", app->name,
566 a->api_client_index, app->app_index);
572 application_free (application_t * app)
574 app_worker_map_t *wrk_map;
575 app_worker_t *app_wrk;
578 * The app event queue allocated in first segment is cleared with
579 * the segment manager. No need to explicitly free it.
581 APP_DBG ("Delete app name %v index: %d", app->name, app->app_index);
583 if (application_is_proxy (app))
584 application_remove_proxy (app);
591 pool_flush (wrk_map, app->worker_maps, ({
592 app_wrk = app_worker_get (wrk_map->wrk_index);
593 app_worker_free (app_wrk);
596 pool_free (app->worker_maps);
599 * Cleanup remaining state
601 if (application_is_builtin (app))
602 application_name_table_del (app);
603 vec_free (app->name);
604 pool_put (app_main.app_pool, app);
608 application_detach_process (application_t * app, u32 api_client_index)
610 vnet_app_worker_add_del_args_t _args = { 0 }, *args = &_args;
611 app_worker_map_t *wrk_map;
612 u32 *wrks = 0, *wrk_index;
613 app_worker_t *app_wrk;
615 if (api_client_index == ~0)
617 application_free (app);
621 APP_DBG ("Detaching for app %v index %u api client index %u", app->name,
622 app->app_index, api_client_index);
625 pool_foreach (wrk_map, app->worker_maps) {
626 app_wrk = app_worker_get (wrk_map->wrk_index);
627 if (app_wrk->api_client_index == api_client_index)
628 vec_add1 (wrks, app_wrk->wrk_index);
634 clib_warning ("no workers for app %u api_index %u", app->app_index,
639 args->app_index = app->app_index;
640 args->api_client_index = api_client_index;
641 vec_foreach (wrk_index, wrks)
643 app_wrk = app_worker_get (wrk_index[0]);
644 args->wrk_map_index = app_wrk->wrk_map_index;
646 vnet_app_worker_add_del (args);
652 application_get_worker (application_t * app, u32 wrk_map_index)
654 app_worker_map_t *map;
655 map = app_worker_map_get (app, wrk_map_index);
658 return app_worker_get (map->wrk_index);
662 application_get_default_worker (application_t * app)
664 return application_get_worker (app, 0);
668 application_n_workers (application_t * app)
670 return pool_elts (app->worker_maps);
674 application_listener_select_worker (session_t * ls)
679 app = application_get (ls->app_index);
680 al = app_listener_get (app, ls->al_index);
681 return app_listener_select_worker (app, al);
685 application_alloc_worker_and_init (application_t * app, app_worker_t ** wrk)
687 app_worker_map_t *wrk_map;
688 app_worker_t *app_wrk;
689 segment_manager_t *sm;
692 app_wrk = app_worker_alloc (app);
693 wrk_map = app_worker_map_alloc (app);
694 wrk_map->wrk_index = app_wrk->wrk_index;
695 app_wrk->wrk_map_index = app_worker_map_index (app, wrk_map);
698 * Setup first segment manager
700 sm = segment_manager_alloc ();
701 sm->app_wrk_index = app_wrk->wrk_index;
703 if ((rv = segment_manager_init_first (sm)))
705 app_worker_free (app_wrk);
708 sm->first_is_protected = 1;
713 app_wrk->first_segment_manager = segment_manager_index (sm);
714 app_wrk->listeners_table = hash_create (0, sizeof (u64));
715 app_wrk->event_queue = segment_manager_event_queue (sm);
716 app_wrk->app_is_builtin = application_is_builtin (app);
724 vnet_app_worker_add_del (vnet_app_worker_add_del_args_t * a)
727 app_worker_map_t *wrk_map;
728 app_worker_t *app_wrk;
729 segment_manager_t *sm;
733 app = application_get (a->app_index);
735 return VNET_API_ERROR_INVALID_VALUE;
739 if ((rv = application_alloc_worker_and_init (app, &app_wrk)))
742 /* Map worker api index to the app */
743 app_wrk->api_client_index = a->api_client_index;
744 application_api_table_add (app->app_index, a->api_client_index);
746 sm = segment_manager_get (app_wrk->first_segment_manager);
747 fs = segment_manager_get_segment_w_lock (sm, 0);
748 a->segment = &fs->ssvm;
749 a->segment_handle = segment_manager_segment_handle (sm, fs);
750 segment_manager_segment_reader_unlock (sm);
751 a->evt_q = app_wrk->event_queue;
752 a->wrk_map_index = app_wrk->wrk_map_index;
756 wrk_map = app_worker_map_get (app, a->wrk_map_index);
758 return VNET_API_ERROR_INVALID_VALUE;
760 app_wrk = app_worker_get (wrk_map->wrk_index);
762 return VNET_API_ERROR_INVALID_VALUE;
764 application_api_table_del (app_wrk->api_client_index);
765 app_worker_free (app_wrk);
766 app_worker_map_free (app, wrk_map);
767 if (application_n_workers (app) == 0)
768 application_free (app);
774 app_validate_namespace (u8 * namespace_id, u64 secret, u32 * app_ns_index)
776 app_namespace_t *app_ns;
777 if (vec_len (namespace_id) == 0)
779 /* Use default namespace */
784 *app_ns_index = app_namespace_index_from_id (namespace_id);
785 if (*app_ns_index == APP_NAMESPACE_INVALID_INDEX)
786 return VNET_API_ERROR_APP_INVALID_NS;
787 app_ns = app_namespace_get (*app_ns_index);
789 return VNET_API_ERROR_APP_INVALID_NS;
790 if (app_ns->ns_secret != secret)
791 return VNET_API_ERROR_APP_WRONG_NS_SECRET;
796 app_name_from_api_index (u32 api_client_index)
798 vl_api_registration_t *regp;
799 regp = vl_api_client_index_to_registration (api_client_index);
801 return format (0, "%s", regp->name);
803 clib_warning ("api client index %u does not have an api registration!",
805 return format (0, "unknown");
809 * Attach application to vpp
811 * Allocates a vpp app, i.e., a structure that keeps back pointers
812 * to external app and a segment manager for shared memory fifo based
813 * communication with the external app.
816 vnet_application_attach (vnet_app_attach_args_t * a)
819 application_t *app = 0;
820 app_worker_t *app_wrk;
821 segment_manager_t *sm;
822 u32 app_ns_index = 0;
827 if (a->api_client_index != APP_INVALID_INDEX)
828 app = application_lookup (a->api_client_index);
830 app = application_lookup_name (a->name);
832 return VNET_API_ERROR_INVALID_VALUE;
835 return VNET_API_ERROR_APP_ALREADY_ATTACHED;
837 /* Socket api sets the name and validates namespace prior to attach */
838 if (!a->use_sock_api)
840 if (a->api_client_index != APP_INVALID_INDEX)
842 app_name = app_name_from_api_index (a->api_client_index);
846 secret = a->options[APP_OPTIONS_NAMESPACE_SECRET];
847 if ((rv = app_validate_namespace (a->namespace_id, secret,
850 a->options[APP_OPTIONS_NAMESPACE] = app_ns_index;
853 if ((rv = application_alloc_and_init ((app_init_args_t *) a)))
856 app = application_get (a->app_index);
857 if ((rv = application_alloc_worker_and_init (app, &app_wrk)))
860 a->app_evt_q = app_wrk->event_queue;
861 app_wrk->api_client_index = a->api_client_index;
862 sm = segment_manager_get (app_wrk->first_segment_manager);
863 fs = segment_manager_get_segment_w_lock (sm, 0);
865 if (application_is_proxy (app))
867 application_setup_proxy (app);
868 /* The segment manager pool is reallocated because a new listener
869 * is added. Re-grab segment manager to avoid dangling reference */
870 sm = segment_manager_get (app_wrk->first_segment_manager);
873 ASSERT (vec_len (fs->ssvm.name) <= 128);
874 a->segment = &fs->ssvm;
875 a->segment_handle = segment_manager_segment_handle (sm, fs);
877 segment_manager_segment_reader_unlock (sm);
883 * Detach application from vpp
886 vnet_application_detach (vnet_app_detach_args_t * a)
890 app = application_get_if_valid (a->app_index);
893 clib_warning ("app not attached");
894 return VNET_API_ERROR_APPLICATION_NOT_ATTACHED;
897 app_interface_check_thread_and_barrier (vnet_application_detach, a);
898 application_detach_process (app, a->api_client_index);
904 session_endpoint_in_ns (session_endpoint_t * sep)
906 u8 is_lep = session_endpoint_is_local (sep);
907 if (!is_lep && sep->sw_if_index != ENDPOINT_INVALID_INDEX
908 && !ip_interface_has_address (sep->sw_if_index, &sep->ip, sep->is_ip4))
910 clib_warning ("sw_if_index %u not configured with ip %U",
911 sep->sw_if_index, format_ip46_address, &sep->ip,
915 return (is_lep || ip_is_local (sep->fib_index, &sep->ip, sep->is_ip4));
919 session_endpoint_update_for_app (session_endpoint_cfg_t * sep,
920 application_t * app, u8 is_connect)
922 app_namespace_t *app_ns;
923 u32 ns_index, fib_index;
925 ns_index = app->ns_index;
927 /* App is a transport proto, so fetch the calling app's ns */
928 if (app->flags & APP_OPTIONS_FLAGS_IS_TRANSPORT_APP)
929 ns_index = sep->ns_index;
931 app_ns = app_namespace_get (ns_index);
935 /* Ask transport and network to bind to/connect using local interface
936 * that "supports" app's namespace. This will fix our local connection
940 /* If in default namespace and user requested a fib index use it */
941 if (ns_index == 0 && sep->fib_index != ENDPOINT_INVALID_INDEX)
942 fib_index = sep->fib_index;
944 fib_index = sep->is_ip4 ? app_ns->ip4_fib_index : app_ns->ip6_fib_index;
945 sep->peer.fib_index = fib_index;
946 sep->fib_index = fib_index;
950 sep->sw_if_index = app_ns->sw_if_index;
954 if (app_ns->sw_if_index != APP_NAMESPACE_INVALID_INDEX
955 && sep->peer.sw_if_index != ENDPOINT_INVALID_INDEX
956 && sep->peer.sw_if_index != app_ns->sw_if_index)
957 clib_warning ("Local sw_if_index different from app ns sw_if_index");
959 sep->peer.sw_if_index = app_ns->sw_if_index;
964 vnet_listen (vnet_listen_args_t * a)
966 app_listener_t *app_listener;
967 app_worker_t *app_wrk;
971 ASSERT (vlib_thread_is_main_w_barrier ());
973 app = application_get_if_valid (a->app_index);
975 return SESSION_E_NOAPP;
977 app_wrk = application_get_worker (app, a->wrk_map_index);
979 return SESSION_E_INVALID_APPWRK;
981 a->sep_ext.app_wrk_index = app_wrk->wrk_index;
983 session_endpoint_update_for_app (&a->sep_ext, app, 0 /* is_connect */ );
984 if (!session_endpoint_in_ns (&a->sep))
985 return SESSION_E_INVALID_NS;
988 * Check if we already have an app listener
990 app_listener = app_listener_lookup (app, &a->sep_ext);
993 if (app_listener->app_index != app->app_index)
994 return SESSION_E_ALREADY_LISTENING;
995 if ((rv = app_worker_start_listen (app_wrk, app_listener)))
997 a->handle = app_listener_handle (app_listener);
1002 * Create new app listener
1004 if ((rv = app_listener_alloc_and_init (app, &a->sep_ext, &app_listener)))
1007 if ((rv = app_worker_start_listen (app_wrk, app_listener)))
1009 app_listener_cleanup (app_listener);
1013 a->handle = app_listener_handle (app_listener);
1018 vnet_connect (vnet_connect_args_t * a)
1020 app_worker_t *client_wrk;
1021 application_t *client;
1023 ASSERT (vlib_thread_is_main_w_barrier ());
1025 if (session_endpoint_is_zero (&a->sep))
1026 return SESSION_E_INVALID_RMT_IP;
1028 client = application_get (a->app_index);
1029 session_endpoint_update_for_app (&a->sep_ext, client, 1 /* is_connect */ );
1030 client_wrk = application_get_worker (client, a->wrk_map_index);
1033 * First check the local scope for locally attached destinations.
1034 * If we have local scope, we pass *all* connects through it since we may
1035 * have special policy rules even for non-local destinations, think proxy.
1037 if (application_has_local_scope (client))
1041 a->sep_ext.original_tp = a->sep_ext.transport_proto;
1042 a->sep_ext.transport_proto = TRANSPORT_PROTO_NONE;
1043 rv = app_worker_connect_session (client_wrk, &a->sep, a->api_context);
1046 a->sep_ext.transport_proto = a->sep_ext.original_tp;
1049 * Not connecting to a local server, propagate to transport
1051 return app_worker_connect_session (client_wrk, &a->sep, a->api_context);
1055 vnet_unlisten (vnet_unlisten_args_t * a)
1057 app_worker_t *app_wrk;
1061 ASSERT (vlib_thread_is_main_w_barrier ());
1063 if (!(app = application_get_if_valid (a->app_index)))
1064 return SESSION_E_NOAPP;
1066 if (!(al = app_listener_get_w_handle (a->handle)))
1067 return SESSION_E_NOLISTEN;
1069 if (al->app_index != app->app_index)
1071 clib_warning ("app doesn't own handle %llu!", a->handle);
1072 return SESSION_E_OWNER;
1075 app_wrk = application_get_worker (app, a->wrk_map_index);
1078 clib_warning ("no app %u worker %u", app->app_index, a->wrk_map_index);
1079 return SESSION_E_INVALID_APPWRK;
1082 return app_worker_stop_listen (app_wrk, al);
1086 vnet_disconnect_session (vnet_disconnect_args_t * a)
1088 app_worker_t *app_wrk;
1091 s = session_get_from_handle_if_valid (a->handle);
1093 return SESSION_E_NOSESSION;
1095 app_wrk = app_worker_get (s->app_wrk_index);
1096 if (app_wrk->app_index != a->app_index)
1097 return SESSION_E_OWNER;
1099 /* We're peeking into another's thread pool. Make sure */
1100 ASSERT (s->session_index == session_index_from_handle (a->handle));
1107 application_change_listener_owner (session_t * s, app_worker_t * app_wrk)
1109 app_worker_t *old_wrk = app_worker_get (s->app_wrk_index);
1110 app_listener_t *app_listener;
1115 return SESSION_E_INVALID_APPWRK;
1117 hash_unset (old_wrk->listeners_table, listen_session_get_handle (s));
1118 if (session_transport_service_type (s) == TRANSPORT_SERVICE_CL
1120 segment_manager_dealloc_fifos (s->rx_fifo, s->tx_fifo);
1122 app = application_get (old_wrk->app_index);
1124 return SESSION_E_NOAPP;
1126 app_listener = app_listener_get (app, s->al_index);
1128 /* Only remove from lb for now */
1129 app_listener->workers = clib_bitmap_set (app_listener->workers,
1130 old_wrk->wrk_map_index, 0);
1132 if ((rv = app_worker_start_listen (app_wrk, app_listener)))
1135 s->app_wrk_index = app_wrk->wrk_index;
1141 application_is_proxy (application_t * app)
1143 return (app->flags & APP_OPTIONS_FLAGS_IS_PROXY);
1147 application_is_builtin (application_t * app)
1149 return (app->flags & APP_OPTIONS_FLAGS_IS_BUILTIN);
1153 application_is_builtin_proxy (application_t * app)
1155 return (application_is_proxy (app) && application_is_builtin (app));
1159 application_has_local_scope (application_t * app)
1161 return app->flags & APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE;
1165 application_has_global_scope (application_t * app)
1167 return app->flags & APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
1170 static clib_error_t *
1171 application_start_stop_proxy_fib_proto (application_t * app, u8 fib_proto,
1172 u8 transport_proto, u8 is_start)
1174 app_namespace_t *app_ns = app_namespace_get (app->ns_index);
1175 u8 is_ip4 = (fib_proto == FIB_PROTOCOL_IP4);
1176 session_endpoint_cfg_t sep = SESSION_ENDPOINT_CFG_NULL;
1177 transport_connection_t *tc;
1178 app_worker_t *app_wrk;
1183 /* TODO decide if we want proxy to be enabled for all workers */
1184 app_wrk = application_get_default_worker (app);
1187 s = app_worker_first_listener (app_wrk, fib_proto, transport_proto);
1190 sep.is_ip4 = is_ip4;
1191 sep.fib_index = app_namespace_get_fib_index (app_ns, fib_proto);
1192 sep.sw_if_index = app_ns->sw_if_index;
1193 sep.transport_proto = transport_proto;
1194 sep.app_wrk_index = app_wrk->wrk_index; /* only default */
1196 /* force global scope listener */
1198 app->flags &= ~APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE;
1199 app_listener_alloc_and_init (app, &sep, &al);
1202 app_worker_start_listen (app_wrk, al);
1203 s = listen_session_get (al->session_index);
1204 s->flags |= SESSION_F_PROXY;
1209 s = app_worker_proxy_listener (app_wrk, fib_proto, transport_proto);
1213 tc = listen_session_get_transport (s);
1215 if (!ip_is_zero (&tc->lcl_ip, 1))
1218 sep.is_ip4 = is_ip4;
1219 sep.fib_index = app_namespace_get_fib_index (app_ns, fib_proto);
1220 sep.transport_proto = transport_proto;
1222 sti = session_lookup_get_index_for_fib (fib_proto, sep.fib_index);
1224 session_lookup_add_session_endpoint (sti,
1225 (session_endpoint_t *) & sep,
1228 session_lookup_del_session_endpoint (sti,
1229 (session_endpoint_t *) & sep);
1236 application_start_stop_proxy_local_scope (application_t * app,
1237 u8 transport_proto, u8 is_start)
1239 session_endpoint_t sep = SESSION_ENDPOINT_NULL;
1240 app_namespace_t *app_ns;
1241 app_ns = app_namespace_get (app->ns_index);
1243 sep.transport_proto = transport_proto;
1248 session_lookup_add_session_endpoint (app_ns->local_table_index, &sep,
1251 session_lookup_add_session_endpoint (app_ns->local_table_index, &sep,
1256 session_lookup_del_session_endpoint (app_ns->local_table_index, &sep);
1258 session_lookup_del_session_endpoint (app_ns->local_table_index, &sep);
1263 application_start_stop_proxy (application_t * app,
1264 transport_proto_t transport_proto, u8 is_start)
1266 if (application_has_local_scope (app))
1267 application_start_stop_proxy_local_scope (app, transport_proto, is_start);
1269 if (application_has_global_scope (app))
1271 application_start_stop_proxy_fib_proto (app, FIB_PROTOCOL_IP4,
1272 transport_proto, is_start);
1273 application_start_stop_proxy_fib_proto (app, FIB_PROTOCOL_IP6,
1274 transport_proto, is_start);
1279 application_setup_proxy (application_t * app)
1281 u16 transports = app->proxied_transports;
1282 transport_proto_t tp;
1284 ASSERT (application_is_proxy (app));
1287 transport_proto_foreach (tp, ({
1288 if (transports & (1 << tp))
1289 application_start_stop_proxy (app, tp, 1);
1295 application_remove_proxy (application_t * app)
1297 u16 transports = app->proxied_transports;
1298 transport_proto_t tp;
1300 ASSERT (application_is_proxy (app));
1303 transport_proto_foreach (tp, ({
1304 if (transports & (1 << tp))
1305 application_start_stop_proxy (app, tp, 0);
1310 segment_manager_props_t *
1311 application_segment_manager_properties (application_t * app)
1313 return &app->sm_properties;
1316 segment_manager_props_t *
1317 application_get_segment_manager_properties (u32 app_index)
1319 application_t *app = application_get (app_index);
1320 return &app->sm_properties;
1324 application_format_listeners (application_t * app, int verbose)
1326 vlib_main_t *vm = vlib_get_main ();
1327 app_worker_map_t *wrk_map;
1328 app_worker_t *app_wrk;
1334 vlib_cli_output (vm, "%U", format_app_worker_listener, 0 /* header */ ,
1340 pool_foreach (wrk_map, app->worker_maps) {
1341 app_wrk = app_worker_get (wrk_map->wrk_index);
1342 if (hash_elts (app_wrk->listeners_table) == 0)
1344 hash_foreach (handle, sm_index, app_wrk->listeners_table, ({
1345 vlib_cli_output (vm, "%U", format_app_worker_listener, app_wrk,
1346 handle, sm_index, verbose);
1353 application_format_connects (application_t * app, int verbose)
1355 app_worker_map_t *wrk_map;
1356 app_worker_t *app_wrk;
1360 app_worker_format_connects (0, verbose);
1365 pool_foreach (wrk_map, app->worker_maps) {
1366 app_wrk = app_worker_get (wrk_map->wrk_index);
1367 app_worker_format_connects (app_wrk, verbose);
1373 format_cert_key_pair (u8 * s, va_list * args)
1375 app_cert_key_pair_t *ckpair = va_arg (*args, app_cert_key_pair_t *);
1376 int key_len = 0, cert_len = 0;
1377 cert_len = vec_len (ckpair->cert);
1378 key_len = vec_len (ckpair->key);
1379 if (ckpair->cert_key_index == 0)
1380 s = format (s, "DEFAULT (cert:%d, key:%d)", cert_len, key_len);
1382 s = format (s, "%d (cert:%d, key:%d)", ckpair->cert_key_index,
1388 format_crypto_engine (u8 * s, va_list * args)
1390 u32 engine = va_arg (*args, u32);
1393 case CRYPTO_ENGINE_NONE:
1394 return format (s, "none");
1395 case CRYPTO_ENGINE_MBEDTLS:
1396 return format (s, "mbedtls");
1397 case CRYPTO_ENGINE_OPENSSL:
1398 return format (s, "openssl");
1399 case CRYPTO_ENGINE_PICOTLS:
1400 return format (s, "picotls");
1401 case CRYPTO_ENGINE_VPP:
1402 return format (s, "vpp");
1404 return format (s, "unknown engine");
1410 unformat_crypto_engine (unformat_input_t * input, va_list * args)
1412 u8 *a = va_arg (*args, u8 *);
1413 if (unformat (input, "mbedtls"))
1414 *a = CRYPTO_ENGINE_MBEDTLS;
1415 else if (unformat (input, "openssl"))
1416 *a = CRYPTO_ENGINE_OPENSSL;
1417 else if (unformat (input, "picotls"))
1418 *a = CRYPTO_ENGINE_PICOTLS;
1419 else if (unformat (input, "vpp"))
1420 *a = CRYPTO_ENGINE_VPP;
1427 format_crypto_context (u8 * s, va_list * args)
1429 crypto_context_t *crctx = va_arg (*args, crypto_context_t *);
1430 s = format (s, "[0x%x][sub%d,ckpair%x]", crctx->ctx_index,
1431 crctx->n_subscribers, crctx->ckpair_index);
1432 s = format (s, "[%U]", format_crypto_engine, crctx->crypto_engine);
1437 format_application (u8 * s, va_list * args)
1439 application_t *app = va_arg (*args, application_t *);
1440 CLIB_UNUSED (int verbose) = va_arg (*args, int);
1441 segment_manager_props_t *props;
1442 const u8 *app_ns_name, *app_name;
1443 app_worker_map_t *wrk_map;
1444 app_worker_t *app_wrk;
1449 s = format (s, "%-10s%-20s%-40s", "Index", "Name", "Namespace");
1453 app_name = app_get_name (app);
1454 app_ns_name = app_namespace_id_from_index (app->ns_index);
1455 props = application_segment_manager_properties (app);
1458 s = format (s, "%-10u%-20v%-40v", app->app_index, app_name,
1463 s = format (s, "app-name %v app-index %u ns-index %u seg-size %U\n",
1464 app_name, app->app_index, app->ns_index,
1465 format_memory_size, props->add_segment_size);
1466 s = format (s, "rx-fifo-size %U tx-fifo-size %U workers:\n",
1467 format_memory_size, props->rx_fifo_size,
1468 format_memory_size, props->tx_fifo_size);
1471 pool_foreach (wrk_map, app->worker_maps) {
1472 app_wrk = app_worker_get (wrk_map->wrk_index);
1473 s = format (s, "%U", format_app_worker, app_wrk);
1481 application_format_all_listeners (vlib_main_t * vm, int verbose)
1485 if (!pool_elts (app_main.app_pool))
1487 vlib_cli_output (vm, "No active server bindings");
1491 application_format_listeners (0, verbose);
1494 pool_foreach (app, app_main.app_pool) {
1495 application_format_listeners (app, verbose);
1501 application_format_all_clients (vlib_main_t * vm, int verbose)
1505 if (!pool_elts (app_main.app_pool))
1507 vlib_cli_output (vm, "No active apps");
1511 application_format_connects (0, verbose);
1514 pool_foreach (app, app_main.app_pool) {
1515 application_format_connects (app, verbose);
1520 static clib_error_t *
1521 show_certificate_command_fn (vlib_main_t * vm, unformat_input_t * input,
1522 vlib_cli_command_t * cmd)
1524 app_cert_key_pair_t *ckpair;
1525 session_cli_return_if_not_enabled ();
1528 pool_foreach (ckpair, app_main.cert_key_pair_store) {
1529 vlib_cli_output (vm, "%U", format_cert_key_pair, ckpair);
1536 appliction_format_app_mq (vlib_main_t * vm, application_t * app)
1538 app_worker_map_t *map;
1541 pool_foreach (map, app->worker_maps) {
1542 wrk = app_worker_get (map->wrk_index);
1543 vlib_cli_output (vm, "[A%d][%d]%U", app->app_index,
1544 map->wrk_index, format_svm_msg_q,
1550 static clib_error_t *
1551 appliction_format_all_app_mq (vlib_main_t * vm)
1556 n_threads = vec_len (vlib_mains);
1558 for (i = 0; i < n_threads; i++)
1560 vlib_cli_output (vm, "[Ctrl%d]%U", i, format_svm_msg_q,
1561 session_main_get_vpp_event_queue (i));
1565 pool_foreach (app, app_main.app_pool) {
1566 appliction_format_app_mq (vm, app);
1572 static clib_error_t *
1573 show_app_command_fn (vlib_main_t * vm, unformat_input_t * input,
1574 vlib_cli_command_t * cmd)
1576 int do_server = 0, do_client = 0, do_mq = 0;
1581 session_cli_return_if_not_enabled ();
1583 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1585 if (unformat (input, "server"))
1587 else if (unformat (input, "client"))
1589 else if (unformat (input, "mq"))
1591 else if (unformat (input, "%u", &app_index))
1593 else if (unformat (input, "verbose"))
1596 return clib_error_return (0, "unknown input `%U'",
1597 format_unformat_error, input);
1600 if (do_mq && app_index != ~0)
1602 app = application_get_if_valid (app_index);
1604 return clib_error_return (0, "No app with index %u", app_index);
1606 appliction_format_app_mq (vm, app);
1612 appliction_format_all_app_mq (vm);
1618 application_format_all_listeners (vm, verbose);
1624 application_format_all_clients (vm, verbose);
1628 if (app_index != ~0)
1630 app = application_get_if_valid (app_index);
1632 return clib_error_return (0, "No app with index %u", app_index);
1634 vlib_cli_output (vm, "%U", format_application, app, /* verbose */ 1);
1638 /* Print app related info */
1639 if (!do_server && !do_client)
1641 vlib_cli_output (vm, "%U", format_application, 0, 0);
1643 pool_foreach (app, app_main.app_pool) {
1644 vlib_cli_output (vm, "%U", format_application, app, 0);
1652 /* Certificate store */
1654 static app_cert_key_pair_t *
1655 app_cert_key_pair_alloc ()
1657 app_cert_key_pair_t *ckpair;
1658 pool_get (app_main.cert_key_pair_store, ckpair);
1659 clib_memset (ckpair, 0, sizeof (*ckpair));
1660 ckpair->cert_key_index = ckpair - app_main.cert_key_pair_store;
1664 app_cert_key_pair_t *
1665 app_cert_key_pair_get_if_valid (u32 index)
1667 if (pool_is_free_index (app_main.cert_key_pair_store, index))
1669 return app_cert_key_pair_get (index);
1672 app_cert_key_pair_t *
1673 app_cert_key_pair_get (u32 index)
1675 return pool_elt_at_index (app_main.cert_key_pair_store, index);
1678 app_cert_key_pair_t *
1679 app_cert_key_pair_get_default ()
1681 /* To maintain legacy bapi */
1682 return app_cert_key_pair_get (0);
1686 vnet_app_add_cert_key_pair (vnet_app_add_cert_key_pair_args_t * a)
1688 app_cert_key_pair_t *ckpair = app_cert_key_pair_alloc ();
1689 vec_validate (ckpair->cert, a->cert_len - 1);
1690 clib_memcpy_fast (ckpair->cert, a->cert, a->cert_len);
1691 vec_validate (ckpair->key, a->key_len - 1);
1692 clib_memcpy_fast (ckpair->key, a->key, a->key_len);
1693 a->index = ckpair->cert_key_index;
1698 vnet_app_add_cert_key_interest (u32 index, u32 app_index)
1700 app_cert_key_pair_t *ckpair;
1701 if (!(ckpair = app_cert_key_pair_get_if_valid (index)))
1703 if (vec_search (ckpair->app_interests, app_index) != ~0)
1704 vec_add1 (ckpair->app_interests, app_index);
1709 vnet_app_del_cert_key_pair (u32 index)
1711 app_cert_key_pair_t *ckpair;
1715 if (!(ckpair = app_cert_key_pair_get_if_valid (index)))
1716 return (VNET_API_ERROR_INVALID_VALUE);
1718 vec_foreach (app_index, ckpair->app_interests)
1720 if ((app = application_get_if_valid (*app_index))
1721 && app->cb_fns.app_cert_key_pair_delete_callback)
1722 app->cb_fns.app_cert_key_pair_delete_callback (ckpair);
1725 vec_free (ckpair->cert);
1726 vec_free (ckpair->key);
1727 pool_put (app_main.cert_key_pair_store, ckpair);
1732 application_init (vlib_main_t * vm)
1734 /* Index 0 was originally used by legacy apis, maintain as invalid */
1735 (void) app_cert_key_pair_alloc ();
1736 app_main.last_crypto_engine = CRYPTO_ENGINE_LAST;
1737 app_main.app_by_name = hash_create_vec (0, sizeof (u8), sizeof (uword));
1742 VLIB_INIT_FUNCTION (application_init);
1744 VLIB_CLI_COMMAND (show_app_command, static) =
1747 .short_help = "show app [app_id] [server|client] [mq] [verbose]",
1748 .function = show_app_command_fn,
1751 VLIB_CLI_COMMAND (show_certificate_command, static) =
1753 .path = "show app certificate",
1754 .short_help = "list app certs and keys present in store",
1755 .function = show_certificate_command_fn,
1759 crypto_engine_type_t
1760 app_crypto_engine_type_add (void)
1762 return (++app_main.last_crypto_engine);
1766 app_crypto_engine_n_types (void)
1768 return (app_main.last_crypto_engine + 1);
1772 * fd.io coding-style-patch-verification: ON
1775 * eval: (c-set-style "gnu")