FD.io VPP  v19.04.4-rc0-5-ge88582fac
Vector Packet Processing
application.c
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1 /*
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:
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
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.
14  */
15 
20 #include <vnet/session/session.h>
21 
23 
24 #define app_interface_check_thread_and_barrier(_fn, _arg) \
25  if (PREDICT_FALSE (!vlib_thread_is_main_w_barrier ())) \
26  { \
27  vlib_rpc_call_main_thread (_fn, (u8 *) _arg, sizeof(*_arg)); \
28  return 0; \
29  }
30 
31 static app_listener_t *
33 {
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  return app_listener;
42 }
43 
45 app_listener_get (application_t * app, u32 app_listener_index)
46 {
47  return pool_elt_at_index (app->listeners, app_listener_index);
48 }
49 
50 static app_listener_t *
51 app_listener_get_if_valid (application_t * app, u32 app_listener_index)
52 {
53  if (pool_is_free_index (app->listeners, app_listener_index))
54  return 0;
55  return pool_elt_at_index (app->listeners, app_listener_index);
56 }
57 
58 static void
60 {
61  clib_bitmap_free (app_listener->workers);
62  pool_put (app->listeners, app_listener);
63  if (CLIB_DEBUG)
64  clib_memset (app_listener, 0xfa, sizeof (*app_listener));
65 }
66 
67 static u32
69 {
70  ASSERT (al->app_index < 1 << 16 && al->al_index < 1 << 16);
71  return (al->app_index << 16 | al->al_index);
72 }
73 
76 {
77  return ((u64) SESSION_LISTENER_PREFIX << 32 | (u64) app_listener_id (al));
78 }
79 
80 static void
81 app_listener_id_parse (u32 listener_id, u32 * app_index,
82  u32 * app_listener_index)
83 {
84  *app_index = listener_id >> 16;
85  *app_listener_index = listener_id & 0xFFFF;
86 }
87 
88 void
90  u32 * app_listener_index)
91 {
92  app_listener_id_parse (handle & 0xFFFFFFFF, app_index, app_listener_index);
93 }
94 
95 static app_listener_t *
97 {
98  u32 app_index, app_listener_index;
99  application_t *app;
100 
101  app_listener_id_parse (listener_id, &app_index, &app_listener_index);
102  app = application_get_if_valid (app_index);
103  if (!app)
104  return 0;
105  return app_listener_get_if_valid (app, app_listener_index);
106 }
107 
110 {
111  application_t *app;
112 
114  if (!app)
115  return 0;
116  return app_listener_get (app, ls->al_index);
117 }
118 
121 {
122 
123  if (handle >> 32 != SESSION_LISTENER_PREFIX)
124  return 0;
125 
126  return app_listener_get_w_id (handle & 0xFFFFFFFF);
127 }
128 
131 {
132  u32 table_index, fib_proto;
133  session_endpoint_t *sep;
134  session_handle_t handle;
135  session_t *ls;
136 
137  sep = (session_endpoint_t *) sep_ext;
139  {
140  table_index = application_local_session_table (app);
141  handle = session_lookup_endpoint_listener (table_index, sep, 1);
142  if (handle != SESSION_INVALID_HANDLE)
143  {
144  ls = listen_session_get_from_handle (handle);
145  return app_listener_get_w_session (ls);
146  }
147  }
148 
149  fib_proto = session_endpoint_fib_proto (sep);
150  table_index = application_session_table (app, fib_proto);
151  handle = session_lookup_endpoint_listener (table_index, sep, 1);
152  if (handle != SESSION_INVALID_HANDLE)
153  {
154  ls = listen_session_get_from_handle (handle);
155  return app_listener_get_w_session ((session_t *) ls);
156  }
157 
158  return 0;
159 }
160 
161 int
165 {
166  app_listener_t *app_listener;
168  session_handle_t lh;
169  session_type_t st;
170  session_t *ls = 0;
171  u32 al_index;
172  int rv;
173 
174  app_listener = app_listener_alloc (app);
175  al_index = app_listener->al_index;
176  st = session_type_from_proto_and_ip (sep->transport_proto, sep->is_ip4);
177 
178  /*
179  * Add session endpoint to local session table. Only binds to "inaddr_any"
180  * (i.e., zero address) are added to local scope table.
181  */
184  {
185  session_type_t local_st;
186  u32 table_index;
187 
189  sep->is_ip4);
190  ls = listen_session_alloc (0, local_st);
191  ls->app_index = app->app_index;
192  ls->app_wrk_index = sep->app_wrk_index;
193  lh = session_handle (ls);
194 
195  if ((rv = session_listen (ls, sep)))
196  {
197  ls = session_get_from_handle (lh);
198  session_free (ls);
199  return rv;
200  }
201 
202  ls = session_get_from_handle (lh);
203  app_listener = app_listener_get (app, al_index);
204  app_listener->local_index = ls->session_index;
205  ls->al_index = al_index;
206 
207  table_index = application_local_session_table (app);
209  (session_endpoint_t *) sep, lh);
210  }
211 
213  {
214  /*
215  * Start listening on local endpoint for requested transport and scope.
216  * Creates a stream session with state LISTENING to be used in session
217  * lookups, prior to establishing connection. Requests transport to
218  * build it's own specific listening connection.
219  */
220  ls = listen_session_alloc (0, st);
221  ls->app_index = app->app_index;
222  ls->app_wrk_index = sep->app_wrk_index;
223 
224  /* Listen pool can be reallocated if the transport is
225  * recursive (tls) */
226  lh = listen_session_get_handle (ls);
227 
228  if ((rv = session_listen (ls, sep)))
229  {
231  session_free (ls);
232  return rv;
233  }
235  app_listener = app_listener_get (app, al_index);
236  app_listener->session_index = ls->session_index;
237  ls->al_index = al_index;
238 
239  /* Add to the global lookup table after transport was initialized.
240  * Lookup table needs to be populated only now because sessions
241  * with cut-through transport are are added to app local tables that
242  * are not related to network fibs, i.e., cannot be added as
243  * connections */
244  tc = session_get_transport (ls);
246  }
247 
248  if (!ls)
249  {
250  app_listener_free (app, app_listener);
251  return -1;
252  }
253 
254  *listener = app_listener;
255  return 0;
256 }
257 
258 void
260 {
262  session_t *ls;
263 
265  {
266  ls = session_get (al->session_index, 0);
267  session_stop_listen (ls);
268  listen_session_free (ls);
269  }
271  {
273  u32 table_index;
274 
275  table_index = application_local_session_table (app);
276  ls = listen_session_get (al->local_index);
277  ct_session_endpoint (ls, &sep);
278  session_lookup_del_session_endpoint (table_index, &sep);
279  session_stop_listen (ls);
280  listen_session_free (ls);
281  }
282  app_listener_free (app, al);
283 }
284 
285 static app_worker_t *
287 {
288  u32 wrk_index;
289 
290  app = application_get (al->app_index);
291  wrk_index = clib_bitmap_next_set (al->workers, al->accept_rotor + 1);
292  if (wrk_index == ~0)
293  wrk_index = clib_bitmap_first_set (al->workers);
294 
295  ASSERT (wrk_index != ~0);
296  al->accept_rotor = wrk_index;
297  return application_get_worker (app, wrk_index);
298 }
299 
300 session_t *
302 {
304  return 0;
305 
306  return listen_session_get (al->session_index);
307 }
308 
309 session_t *
311 {
313  return 0;
314  return listen_session_get (al->local_index);
315 }
316 
317 static app_worker_map_t *
319 {
320  app_worker_map_t *map;
321  pool_get (app->worker_maps, map);
322  clib_memset (map, 0, sizeof (*map));
323  return map;
324 }
325 
326 static u32
328 {
329  return (map - app->worker_maps);
330 }
331 
332 static void
334 {
335  pool_put (app->worker_maps, map);
336 }
337 
338 static app_worker_map_t *
340 {
341  if (pool_is_free_index (app->worker_maps, map_index))
342  return 0;
343  return pool_elt_at_index (app->worker_maps, map_index);
344 }
345 
346 static const u8 *
348 {
349  return app->name;
350 }
351 
352 u32
354 {
355  app_namespace_t *app_ns;
356  app_ns = app_namespace_get (app->ns_index);
357  if (!application_has_global_scope (app))
358  return APP_INVALID_INDEX;
359  if (fib_proto == FIB_PROTOCOL_IP4)
360  return session_lookup_get_index_for_fib (fib_proto,
361  app_ns->ip4_fib_index);
362  else
363  return session_lookup_get_index_for_fib (fib_proto,
364  app_ns->ip6_fib_index);
365 }
366 
367 u32
369 {
370  app_namespace_t *app_ns;
371  if (!application_has_local_scope (app))
372  return APP_INVALID_INDEX;
373  app_ns = app_namespace_get (app->ns_index);
374  return app_ns->local_table_index;
375 }
376 
377 /**
378  * Returns app name for app-index
379  */
380 const u8 *
382 {
383  application_t *app = application_get (app_index);
384  if (!app)
385  return 0;
386  return app_get_name (app);
387 }
388 
389 static void
390 application_api_table_add (u32 app_index, u32 api_client_index)
391 {
392  if (api_client_index != APP_INVALID_INDEX)
393  hash_set (app_main.app_by_api_client_index, api_client_index, app_index);
394 }
395 
396 static void
397 application_api_table_del (u32 api_client_index)
398 {
399  hash_unset (app_main.app_by_api_client_index, api_client_index);
400 }
401 
402 static void
404 {
405  hash_set_mem (app_main.app_by_name, app->name, app->app_index);
406 }
407 
408 static void
410 {
411  hash_unset_mem (app_main.app_by_name, app->name);
412 }
413 
415 application_lookup (u32 api_client_index)
416 {
417  uword *p;
418  p = hash_get (app_main.app_by_api_client_index, api_client_index);
419  if (p)
420  return application_get_if_valid (p[0]);
421 
422  return 0;
423 }
424 
427 {
428  uword *p;
429  p = hash_get_mem (app_main.app_by_name, name);
430  if (p)
431  return application_get (p[0]);
432 
433  return 0;
434 }
435 
436 static application_t *
438 {
439  application_t *app;
440  pool_get (app_main.app_pool, app);
441  clib_memset (app, 0, sizeof (*app));
442  app->app_index = app - app_main.app_pool;
443  return app;
444 }
445 
447 application_get (u32 app_index)
448 {
449  if (app_index == APP_INVALID_INDEX)
450  return 0;
451  return pool_elt_at_index (app_main.app_pool, app_index);
452 }
453 
456 {
457  if (pool_is_free_index (app_main.app_pool, app_index))
458  return 0;
459 
460  return pool_elt_at_index (app_main.app_pool, app_index);
461 }
462 
463 static void
465 {
466  if (cb_fns->session_accept_callback == 0)
467  clib_warning ("No accept callback function provided");
468  if (cb_fns->session_connected_callback == 0)
469  clib_warning ("No session connected callback function provided");
470  if (cb_fns->session_disconnect_callback == 0)
471  clib_warning ("No session disconnect callback function provided");
472  if (cb_fns->session_reset_callback == 0)
473  clib_warning ("No session reset callback function provided");
474 }
475 
476 /**
477  * Check app config for given segment type
478  *
479  * Returns 1 on success and 0 otherwise
480  */
481 static u8
483 {
484  u8 is_valid;
485  if (st == SSVM_SEGMENT_MEMFD)
486  {
487  is_valid = (session_main_get_evt_q_segment () != 0);
488  if (!is_valid)
489  clib_warning ("memfd seg: vpp's event qs IN binary api svm region");
490  return is_valid;
491  }
492  else if (st == SSVM_SEGMENT_SHM)
493  {
494  is_valid = (session_main_get_evt_q_segment () == 0);
495  if (!is_valid)
496  clib_warning ("shm seg: vpp's event qs NOT IN binary api svm region");
497  return is_valid;
498  }
499  else
500  return 1;
501 }
502 
503 static int
505 {
509  application_t *app;
510  u64 *options;
511 
512  app = application_alloc ();
513  options = a->options;
514  /*
515  * Make sure we support the requested configuration
516  */
517  if (!(options[APP_OPTIONS_FLAGS] & APP_OPTIONS_FLAGS_IS_BUILTIN))
518  {
519  reg = vl_api_client_index_to_registration (a->api_client_index);
520  if (!reg)
521  return VNET_API_ERROR_APP_UNSUPPORTED_CFG;
523  seg_type = SSVM_SEGMENT_SHM;
524  }
525  else
526  {
527  seg_type = SSVM_SEGMENT_PRIVATE;
528  }
529 
530  if ((options[APP_OPTIONS_FLAGS] & APP_OPTIONS_FLAGS_EVT_MQ_USE_EVENTFD)
531  && seg_type != SSVM_SEGMENT_MEMFD)
532  {
533  clib_warning ("mq eventfds can only be used if socket transport is "
534  "used for binary api");
535  return VNET_API_ERROR_APP_UNSUPPORTED_CFG;
536  }
537 
538  if (!application_verify_cfg (seg_type))
539  return VNET_API_ERROR_APP_UNSUPPORTED_CFG;
540 
541  /* Check that the obvious things are properly set up */
542  application_verify_cb_fns (a->session_cb_vft);
543 
544  app->flags = options[APP_OPTIONS_FLAGS];
545  app->cb_fns = *a->session_cb_vft;
546  app->ns_index = options[APP_OPTIONS_NAMESPACE];
548  app->name = vec_dup (a->name);
549 
550  /* If no scope enabled, default to global */
552  && !application_has_local_scope (app))
553  app->flags |= APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
554 
557  props->segment_size = options[APP_OPTIONS_SEGMENT_SIZE];
558  props->prealloc_fifos = options[APP_OPTIONS_PREALLOC_FIFO_PAIRS];
559  if (options[APP_OPTIONS_ADD_SEGMENT_SIZE])
560  {
561  props->add_segment_size = options[APP_OPTIONS_ADD_SEGMENT_SIZE];
562  props->add_segment = 1;
563  }
564  if (options[APP_OPTIONS_RX_FIFO_SIZE])
565  props->rx_fifo_size = options[APP_OPTIONS_RX_FIFO_SIZE];
566  if (options[APP_OPTIONS_TX_FIFO_SIZE])
567  props->tx_fifo_size = options[APP_OPTIONS_TX_FIFO_SIZE];
568  if (options[APP_OPTIONS_EVT_QUEUE_SIZE])
569  props->evt_q_size = options[APP_OPTIONS_EVT_QUEUE_SIZE];
570  if (options[APP_OPTIONS_FLAGS] & APP_OPTIONS_FLAGS_EVT_MQ_USE_EVENTFD)
571  props->use_mq_eventfd = 1;
572  if (options[APP_OPTIONS_TLS_ENGINE])
573  app->tls_engine = options[APP_OPTIONS_TLS_ENGINE];
574  props->segment_type = seg_type;
575 
576  /* Add app to lookup by api_client_index table */
577  if (!application_is_builtin (app))
578  application_api_table_add (app->app_index, a->api_client_index);
579  else
581 
582  a->app_index = app->app_index;
583 
584  APP_DBG ("New app name: %v api index: %u index %u", app->name,
585  app->api_client_index, app->app_index);
586 
587  return 0;
588 }
589 
590 static void
592 {
593  app_worker_map_t *wrk_map;
594  app_worker_t *app_wrk;
595 
596  /*
597  * The app event queue allocated in first segment is cleared with
598  * the segment manager. No need to explicitly free it.
599  */
600  APP_DBG ("Delete app name %v api index: %d index: %d", app->name,
601  app->api_client_index, app->app_index);
602 
603  if (application_is_proxy (app))
605 
606  /*
607  * Free workers
608  */
609 
610  /* *INDENT-OFF* */
611  pool_flush (wrk_map, app->worker_maps, ({
612  app_wrk = app_worker_get (wrk_map->wrk_index);
613  app_worker_free (app_wrk);
614  }));
615  /* *INDENT-ON* */
616  pool_free (app->worker_maps);
617 
618  /*
619  * Cleanup remaining state
620  */
621  if (application_is_builtin (app))
623  vec_free (app->name);
624  vec_free (app->tls_cert);
625  vec_free (app->tls_key);
626  pool_put (app_main.app_pool, app);
627 }
628 
629 static void
631 {
632  vnet_app_worker_add_del_args_t _args = { 0 }, *args = &_args;
633  app_worker_map_t *wrk_map;
634  u32 *wrks = 0, *wrk_index;
635  app_worker_t *app_wrk;
636 
637  if (api_client_index == ~0)
638  {
639  application_free (app);
640  return;
641  }
642 
643  APP_DBG ("Detaching for app %v index %u api client index %u", app->name,
644  app->app_index, app->api_client_index);
645 
646  /* *INDENT-OFF* */
647  pool_foreach (wrk_map, app->worker_maps, ({
648  app_wrk = app_worker_get (wrk_map->wrk_index);
649  if (app_wrk->api_client_index == api_client_index)
650  vec_add1 (wrks, app_wrk->wrk_index);
651  }));
652  /* *INDENT-ON* */
653 
654  if (!vec_len (wrks))
655  {
656  clib_warning ("no workers for app %u api_index %u", app->app_index,
657  api_client_index);
658  return;
659  }
660 
661  args->app_index = app->app_index;
662  args->api_client_index = api_client_index;
663  vec_foreach (wrk_index, wrks)
664  {
665  app_wrk = app_worker_get (wrk_index[0]);
666  args->wrk_map_index = app_wrk->wrk_map_index;
667  args->is_add = 0;
669  }
670  vec_free (wrks);
671 }
672 
673 app_worker_t *
675 {
676  app_worker_map_t *map;
677  map = app_worker_map_get (app, wrk_map_index);
678  if (!map)
679  return 0;
680  return app_worker_get (map->wrk_index);
681 }
682 
683 app_worker_t *
685 {
686  return application_get_worker (app, 0);
687 }
688 
689 u32
691 {
692  return pool_elts (app->worker_maps);
693 }
694 
695 app_worker_t *
697 {
698  application_t *app;
699  app_listener_t *al;
700 
701  app = application_get (ls->app_index);
702  al = app_listener_get (app, ls->al_index);
703  return app_listener_select_worker (app, al);
704 }
705 
706 int
708 {
709  app_worker_map_t *wrk_map;
710  app_worker_t *app_wrk;
711  segment_manager_t *sm;
712  int rv;
713 
714  app_wrk = app_worker_alloc (app);
715  wrk_map = app_worker_map_alloc (app);
716  wrk_map->wrk_index = app_wrk->wrk_index;
717  app_wrk->wrk_map_index = app_worker_map_index (app, wrk_map);
718 
719  /*
720  * Setup first segment manager
721  */
722  sm = segment_manager_new ();
723  sm->app_wrk_index = app_wrk->wrk_index;
724 
725  if ((rv = segment_manager_init (sm, app->sm_properties.segment_size,
726  app->sm_properties.prealloc_fifos)))
727  {
728  app_worker_free (app_wrk);
729  return rv;
730  }
731  sm->first_is_protected = 1;
732 
733  /*
734  * Setup app worker
735  */
737  app_wrk->listeners_table = hash_create (0, sizeof (u64));
739  app_wrk->app_is_builtin = application_is_builtin (app);
740 
741  *wrk = app_wrk;
742 
743  return 0;
744 }
745 
746 int
748 {
750  app_worker_map_t *wrk_map;
751  app_worker_t *app_wrk;
752  segment_manager_t *sm;
753  application_t *app;
754  int rv;
755 
756  app = application_get (a->app_index);
757  if (!app)
758  return VNET_API_ERROR_INVALID_VALUE;
759 
760  if (a->is_add)
761  {
762  if ((rv = application_alloc_worker_and_init (app, &app_wrk)))
763  return rv;
764 
765  /* Map worker api index to the app */
766  app_wrk->api_client_index = a->api_client_index;
767  application_api_table_add (app->app_index, a->api_client_index);
768 
771  a->segment = &fs->ssvm;
772  a->segment_handle = segment_manager_segment_handle (sm, fs);
774  a->evt_q = app_wrk->event_queue;
775  a->wrk_map_index = app_wrk->wrk_map_index;
776  }
777  else
778  {
779  wrk_map = app_worker_map_get (app, a->wrk_map_index);
780  if (!wrk_map)
781  return VNET_API_ERROR_INVALID_VALUE;
782 
783  app_wrk = app_worker_get (wrk_map->wrk_index);
784  if (!app_wrk)
785  return VNET_API_ERROR_INVALID_VALUE;
786 
788  app_worker_free (app_wrk);
789  app_worker_map_free (app, wrk_map);
790  if (application_n_workers (app) == 0)
791  application_free (app);
792  }
793  return 0;
794 }
795 
796 static int
797 app_validate_namespace (u8 * namespace_id, u64 secret, u32 * app_ns_index)
798 {
799  app_namespace_t *app_ns;
800  if (vec_len (namespace_id) == 0)
801  {
802  /* Use default namespace */
803  *app_ns_index = 0;
804  return 0;
805  }
806 
807  *app_ns_index = app_namespace_index_from_id (namespace_id);
808  if (*app_ns_index == APP_NAMESPACE_INVALID_INDEX)
809  return VNET_API_ERROR_APP_INVALID_NS;
810  app_ns = app_namespace_get (*app_ns_index);
811  if (!app_ns)
812  return VNET_API_ERROR_APP_INVALID_NS;
813  if (app_ns->ns_secret != secret)
814  return VNET_API_ERROR_APP_WRONG_NS_SECRET;
815  return 0;
816 }
817 
818 static u8 *
819 app_name_from_api_index (u32 api_client_index)
820 {
821  vl_api_registration_t *regp;
822  regp = vl_api_client_index_to_registration (api_client_index);
823  if (regp)
824  return format (0, "%s", regp->name);
825 
826  clib_warning ("api client index %u does not have an api registration!",
827  api_client_index);
828  return format (0, "unknown");
829 }
830 
831 /**
832  * Attach application to vpp
833  *
834  * Allocates a vpp app, i.e., a structure that keeps back pointers
835  * to external app and a segment manager for shared memory fifo based
836  * communication with the external app.
837  */
838 int
840 {
842  application_t *app = 0;
843  app_worker_t *app_wrk;
844  segment_manager_t *sm;
845  u32 app_ns_index = 0;
846  u8 *app_name = 0;
847  u64 secret;
848  int rv;
849 
850  if (a->api_client_index != APP_INVALID_INDEX)
851  app = application_lookup (a->api_client_index);
852  else if (a->name)
853  app = application_lookup_name (a->name);
854  else
855  return VNET_API_ERROR_INVALID_VALUE;
856 
857  if (app)
858  return VNET_API_ERROR_APP_ALREADY_ATTACHED;
859 
860  if (a->api_client_index != APP_INVALID_INDEX)
861  {
862  app_name = app_name_from_api_index (a->api_client_index);
863  a->name = app_name;
864  }
865 
866  secret = a->options[APP_OPTIONS_NAMESPACE_SECRET];
867  if ((rv = app_validate_namespace (a->namespace_id, secret, &app_ns_index)))
868  return rv;
869  a->options[APP_OPTIONS_NAMESPACE] = app_ns_index;
870 
871  if ((rv = application_alloc_and_init ((app_init_args_t *) a)))
872  return rv;
873 
874  app = application_get (a->app_index);
875  if ((rv = application_alloc_worker_and_init (app, &app_wrk)))
876  return rv;
877 
878  a->app_evt_q = app_wrk->event_queue;
879  app_wrk->api_client_index = a->api_client_index;
882 
883  if (application_is_proxy (app))
885 
886  ASSERT (vec_len (fs->ssvm.name) <= 128);
887  a->segment = &fs->ssvm;
888  a->segment_handle = segment_manager_segment_handle (sm, fs);
889 
891  vec_free (app_name);
892  return 0;
893 }
894 
895 /**
896  * Detach application from vpp
897  */
898 int
900 {
901  application_t *app;
902 
903  app = application_get_if_valid (a->app_index);
904  if (!app)
905  {
906  clib_warning ("app not attached");
907  return VNET_API_ERROR_APPLICATION_NOT_ATTACHED;
908  }
909 
911  application_detach_process (app, a->api_client_index);
912  return 0;
913 }
914 
915 
916 static u8
918 {
919  u8 is_lep = session_endpoint_is_local (sep);
920  if (!is_lep && sep->sw_if_index != ENDPOINT_INVALID_INDEX
921  && !ip_interface_has_address (sep->sw_if_index, &sep->ip, sep->is_ip4))
922  {
923  clib_warning ("sw_if_index %u not configured with ip %U",
924  sep->sw_if_index, format_ip46_address, &sep->ip,
925  sep->is_ip4);
926  return 0;
927  }
928  return (is_lep || ip_is_local (sep->fib_index, &sep->ip, sep->is_ip4));
929 }
930 
931 static void
933  application_t * app, u8 is_connect)
934 {
935  app_namespace_t *app_ns;
936  u32 ns_index, fib_index;
937 
938  ns_index = app->ns_index;
939 
940  /* App is a transport proto, so fetch the calling app's ns */
941  if (app->flags & APP_OPTIONS_FLAGS_IS_TRANSPORT_APP)
942  ns_index = sep->ns_index;
943 
944  app_ns = app_namespace_get (ns_index);
945  if (!app_ns)
946  return;
947 
948  /* Ask transport and network to bind to/connect using local interface
949  * that "supports" app's namespace. This will fix our local connection
950  * endpoint.
951  */
952 
953  /* If in default namespace and user requested a fib index use it */
954  if (ns_index == 0 && sep->fib_index != ENDPOINT_INVALID_INDEX)
955  fib_index = sep->fib_index;
956  else
957  fib_index = sep->is_ip4 ? app_ns->ip4_fib_index : app_ns->ip6_fib_index;
958  sep->peer.fib_index = fib_index;
959  sep->fib_index = fib_index;
960 
961  if (!is_connect)
962  {
963  sep->sw_if_index = app_ns->sw_if_index;
964  }
965  else
966  {
967  if (app_ns->sw_if_index != APP_NAMESPACE_INVALID_INDEX
968  && sep->peer.sw_if_index != ENDPOINT_INVALID_INDEX
969  && sep->peer.sw_if_index != app_ns->sw_if_index)
970  clib_warning ("Local sw_if_index different from app ns sw_if_index");
971 
972  sep->peer.sw_if_index = app_ns->sw_if_index;
973  }
974 }
975 
976 int
978 {
979  app_listener_t *app_listener;
980  app_worker_t *app_wrk;
981  application_t *app;
982  int rv;
983 
984  app = application_get_if_valid (a->app_index);
985  if (!app)
986  return VNET_API_ERROR_APPLICATION_NOT_ATTACHED;
987 
988  app_wrk = application_get_worker (app, a->wrk_map_index);
989  if (!app_wrk)
990  return VNET_API_ERROR_INVALID_VALUE;
991 
992  a->sep_ext.app_wrk_index = app_wrk->wrk_index;
993 
994  session_endpoint_update_for_app (&a->sep_ext, app, 0 /* is_connect */ );
995  if (!session_endpoint_in_ns (&a->sep))
996  return VNET_API_ERROR_INVALID_VALUE_2;
997 
998  /*
999  * Check if we already have an app listener
1000  */
1001  app_listener = app_listener_lookup (app, &a->sep_ext);
1002  if (app_listener)
1003  {
1004  if (app_listener->app_index != app->app_index)
1005  return VNET_API_ERROR_ADDRESS_IN_USE;
1006  if (app_worker_start_listen (app_wrk, app_listener))
1007  return -1;
1008  a->handle = app_listener_handle (app_listener);
1009  return 0;
1010  }
1011 
1012  /*
1013  * Create new app listener
1014  */
1015  if ((rv = app_listener_alloc_and_init (app, &a->sep_ext, &app_listener)))
1016  return rv;
1017 
1018  if ((rv = app_worker_start_listen (app_wrk, app_listener)))
1019  {
1020  app_listener_cleanup (app_listener);
1021  return rv;
1022  }
1023 
1024  a->handle = app_listener_handle (app_listener);
1025  return 0;
1026 }
1027 
1028 int
1030 {
1031  app_worker_t *client_wrk;
1032  application_t *client;
1033 
1034  if (session_endpoint_is_zero (&a->sep))
1035  return VNET_API_ERROR_INVALID_VALUE;
1036 
1037  client = application_get (a->app_index);
1038  session_endpoint_update_for_app (&a->sep_ext, client, 1 /* is_connect */ );
1039  client_wrk = application_get_worker (client, a->wrk_map_index);
1040 
1041  /*
1042  * First check the local scope for locally attached destinations.
1043  * If we have local scope, we pass *all* connects through it since we may
1044  * have special policy rules even for non-local destinations, think proxy.
1045  */
1046  if (application_has_local_scope (client))
1047  {
1048  int rv;
1049 
1050  a->sep_ext.original_tp = a->sep_ext.transport_proto;
1051  a->sep_ext.transport_proto = TRANSPORT_PROTO_NONE;
1052  rv = app_worker_connect_session (client_wrk, &a->sep, a->api_context);
1053  if (rv <= 0)
1054  return rv;
1055  }
1056  /*
1057  * Not connecting to a local server, propagate to transport
1058  */
1059  if (app_worker_connect_session (client_wrk, &a->sep, a->api_context))
1060  return VNET_API_ERROR_SESSION_CONNECT;
1061  return 0;
1062 }
1063 
1064 int
1066 {
1067  app_worker_t *app_wrk;
1068  app_listener_t *al;
1069  application_t *app;
1070 
1071  if (!(app = application_get_if_valid (a->app_index)))
1072  return VNET_API_ERROR_APPLICATION_NOT_ATTACHED;
1073 
1074  if (!(al = app_listener_get_w_handle (a->handle)))
1075  return -1;
1076 
1077  if (al->app_index != app->app_index)
1078  {
1079  clib_warning ("app doesn't own handle %llu!", a->handle);
1080  return -1;
1081  }
1082 
1083  app_wrk = application_get_worker (app, a->wrk_map_index);
1084  if (!app_wrk)
1085  {
1086  clib_warning ("no app %u worker %u", app->app_index, a->wrk_map_index);
1087  return -1;
1088  }
1089 
1090  return app_worker_stop_listen (app_wrk, al);
1091 }
1092 
1093 int
1095 {
1096  app_worker_t *app_wrk;
1097  session_t *s;
1098 
1099  s = session_get_from_handle_if_valid (a->handle);
1100  if (!s)
1101  return VNET_API_ERROR_INVALID_VALUE;
1102  app_wrk = app_worker_get (s->app_wrk_index);
1103  if (app_wrk->app_index != a->app_index)
1104  return VNET_API_ERROR_INVALID_VALUE;
1105 
1106  /* We're peeking into another's thread pool. Make sure */
1107  ASSERT (s->session_index == session_index_from_handle (a->handle));
1108 
1109  session_close (s);
1110  return 0;
1111 }
1112 
1113 int
1115 {
1116  app_worker_t *old_wrk = app_worker_get (s->app_wrk_index);
1117  app_listener_t *app_listener;
1118  application_t *app;
1119 
1120  if (!old_wrk)
1121  return -1;
1122 
1125  && s->rx_fifo)
1127 
1128  app = application_get (old_wrk->app_index);
1129  if (!app)
1130  return -1;
1131 
1132  app_listener = app_listener_get (app, s->al_index);
1133 
1134  /* Only remove from lb for now */
1135  app_listener->workers = clib_bitmap_set (app_listener->workers,
1136  old_wrk->wrk_map_index, 0);
1137 
1138  if (app_worker_start_listen (app_wrk, app_listener))
1139  return -1;
1140 
1141  s->app_wrk_index = app_wrk->wrk_index;
1142 
1143  return 0;
1144 }
1145 
1146 int
1148 {
1149  return (app->flags & APP_OPTIONS_FLAGS_IS_PROXY);
1150 }
1151 
1152 int
1154 {
1155  return (app->flags & APP_OPTIONS_FLAGS_IS_BUILTIN);
1156 }
1157 
1158 int
1160 {
1161  return (application_is_proxy (app) && application_is_builtin (app));
1162 }
1163 
1164 u8
1166 {
1167  return app->flags & APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE;
1168 }
1169 
1170 u8
1172 {
1173  return app->flags & APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
1174 }
1175 
1176 static clib_error_t *
1178  u8 transport_proto, u8 is_start)
1179 {
1180  app_namespace_t *app_ns = app_namespace_get (app->ns_index);
1181  u8 is_ip4 = (fib_proto == FIB_PROTOCOL_IP4);
1184  app_worker_t *app_wrk;
1185  app_listener_t *al;
1186  session_t *s;
1187  u32 flags;
1188 
1189  /* TODO decide if we want proxy to be enabled for all workers */
1190  app_wrk = application_get_default_worker (app);
1191  if (is_start)
1192  {
1193  s = app_worker_first_listener (app_wrk, fib_proto, transport_proto);
1194  if (!s)
1195  {
1196  sep.is_ip4 = is_ip4;
1197  sep.fib_index = app_namespace_get_fib_index (app_ns, fib_proto);
1198  sep.sw_if_index = app_ns->sw_if_index;
1199  sep.transport_proto = transport_proto;
1200  sep.app_wrk_index = app_wrk->wrk_index; /* only default */
1201 
1202  /* force global scope listener */
1203  flags = app->flags;
1204  app->flags &= ~APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE;
1205  app_listener_alloc_and_init (app, &sep, &al);
1206  app->flags = flags;
1207 
1208  app_worker_start_listen (app_wrk, al);
1210  s->flags |= SESSION_F_PROXY;
1211  }
1212  }
1213  else
1214  {
1215  s = app_worker_proxy_listener (app_wrk, fib_proto, transport_proto);
1216  ASSERT (s);
1217  }
1218 
1220 
1221  if (!ip_is_zero (&tc->lcl_ip, 1))
1222  {
1223  u32 sti;
1224  sep.is_ip4 = is_ip4;
1225  sep.fib_index = app_namespace_get_fib_index (app_ns, fib_proto);
1226  sep.transport_proto = transport_proto;
1227  sep.port = 0;
1228  sti = session_lookup_get_index_for_fib (fib_proto, sep.fib_index);
1229  if (is_start)
1231  (session_endpoint_t *) & sep,
1232  s->session_index);
1233  else
1235  (session_endpoint_t *) & sep);
1236  }
1237 
1238  return 0;
1239 }
1240 
1241 static void
1243  u8 transport_proto, u8 is_start)
1244 {
1246  app_namespace_t *app_ns;
1247  app_ns = app_namespace_get (app->ns_index);
1248  sep.is_ip4 = 1;
1249  sep.transport_proto = transport_proto;
1250  sep.port = 0;
1251 
1252  if (is_start)
1253  {
1254  session_lookup_add_session_endpoint (app_ns->local_table_index, &sep,
1255  app->app_index);
1256  sep.is_ip4 = 0;
1257  session_lookup_add_session_endpoint (app_ns->local_table_index, &sep,
1258  app->app_index);
1259  }
1260  else
1261  {
1262  session_lookup_del_session_endpoint (app_ns->local_table_index, &sep);
1263  sep.is_ip4 = 0;
1264  session_lookup_del_session_endpoint (app_ns->local_table_index, &sep);
1265  }
1266 }
1267 
1268 void
1270  transport_proto_t transport_proto, u8 is_start)
1271 {
1272  if (application_has_local_scope (app))
1273  application_start_stop_proxy_local_scope (app, transport_proto, is_start);
1274 
1275  if (application_has_global_scope (app))
1276  {
1278  transport_proto, is_start);
1280  transport_proto, is_start);
1281  }
1282 }
1283 
1284 void
1286 {
1287  u16 transports = app->proxied_transports;
1288  transport_proto_t tp;
1289 
1290  ASSERT (application_is_proxy (app));
1291 
1292  /* *INDENT-OFF* */
1293  transport_proto_foreach (tp, ({
1294  if (transports & (1 << tp))
1295  application_start_stop_proxy (app, tp, 1);
1296  }));
1297  /* *INDENT-ON* */
1298 }
1299 
1300 void
1302 {
1303  u16 transports = app->proxied_transports;
1304  transport_proto_t tp;
1305 
1306  ASSERT (application_is_proxy (app));
1307 
1308  /* *INDENT-OFF* */
1309  transport_proto_foreach (tp, ({
1310  if (transports & (1 << tp))
1311  application_start_stop_proxy (app, tp, 0);
1312  }));
1313  /* *INDENT-ON* */
1314 }
1315 
1318 {
1319  return &app->sm_properties;
1320 }
1321 
1324 {
1325  application_t *app = application_get (app_index);
1326  return &app->sm_properties;
1327 }
1328 
1329 clib_error_t *
1331 {
1332  application_t *app;
1333  app = application_get (a->app_index);
1334  if (!app)
1335  return clib_error_return_code (0, VNET_API_ERROR_APPLICATION_NOT_ATTACHED,
1336  0, "app %u doesn't exist", a->app_index);
1337  app->tls_cert = vec_dup (a->cert);
1338  return 0;
1339 }
1340 
1341 clib_error_t *
1343 {
1344  application_t *app;
1345  app = application_get (a->app_index);
1346  if (!app)
1347  return clib_error_return_code (0, VNET_API_ERROR_APPLICATION_NOT_ATTACHED,
1348  0, "app %u doesn't exist", a->app_index);
1349  app->tls_key = vec_dup (a->key);
1350  return 0;
1351 }
1352 
1353 static void
1355 {
1357  app_worker_map_t *wrk_map;
1358  app_worker_t *app_wrk;
1359  u32 sm_index;
1360  u64 handle;
1361 
1362  if (!app)
1363  {
1364  vlib_cli_output (vm, "%U", format_app_worker_listener, 0 /* header */ ,
1365  0, 0, verbose);
1366  return;
1367  }
1368 
1369  /* *INDENT-OFF* */
1370  pool_foreach (wrk_map, app->worker_maps, ({
1371  app_wrk = app_worker_get (wrk_map->wrk_index);
1372  if (hash_elts (app_wrk->listeners_table) == 0)
1373  continue;
1374  hash_foreach (handle, sm_index, app_wrk->listeners_table, ({
1375  vlib_cli_output (vm, "%U", format_app_worker_listener, app_wrk,
1376  handle, sm_index, verbose);
1377  }));
1378  }));
1379  /* *INDENT-ON* */
1380 }
1381 
1382 static void
1384 {
1385  app_worker_map_t *wrk_map;
1386  app_worker_t *app_wrk;
1387 
1388  if (!app)
1389  {
1390  app_worker_format_connects (0, verbose);
1391  return;
1392  }
1393 
1394  /* *INDENT-OFF* */
1395  pool_foreach (wrk_map, app->worker_maps, ({
1396  app_wrk = app_worker_get (wrk_map->wrk_index);
1397  app_worker_format_connects (app_wrk, verbose);
1398  }));
1399  /* *INDENT-ON* */
1400 }
1401 
1402 u8 *
1403 format_application (u8 * s, va_list * args)
1404 {
1405  application_t *app = va_arg (*args, application_t *);
1406  CLIB_UNUSED (int verbose) = va_arg (*args, int);
1408  const u8 *app_ns_name, *app_name;
1409  app_worker_map_t *wrk_map;
1410  app_worker_t *app_wrk;
1411 
1412  if (app == 0)
1413  {
1414  if (!verbose)
1415  s = format (s, "%-10s%-20s%-40s", "Index", "Name", "Namespace");
1416  return s;
1417  }
1418 
1419  app_name = app_get_name (app);
1420  app_ns_name = app_namespace_id_from_index (app->ns_index);
1422  if (!verbose)
1423  {
1424  s = format (s, "%-10u%-20v%-40s", app->app_index, app_name,
1425  app_ns_name);
1426  return s;
1427  }
1428 
1429  s = format (s, "app-name %v app-index %u ns-index %u seg-size %U\n",
1430  app_name, app->app_index, app->ns_index,
1431  format_memory_size, props->add_segment_size);
1432  s = format (s, "rx-fifo-size %U tx-fifo-size %U workers:\n",
1433  format_memory_size, props->rx_fifo_size,
1434  format_memory_size, props->tx_fifo_size);
1435 
1436  /* *INDENT-OFF* */
1437  pool_foreach (wrk_map, app->worker_maps, ({
1438  app_wrk = app_worker_get (wrk_map->wrk_index);
1439  s = format (s, "%U", format_app_worker, app_wrk);
1440  }));
1441  /* *INDENT-ON* */
1442 
1443  return s;
1444 }
1445 
1446 void
1448 {
1449  application_t *app;
1450 
1451  if (!pool_elts (app_main.app_pool))
1452  {
1453  vlib_cli_output (vm, "No active server bindings");
1454  return;
1455  }
1456 
1457  application_format_listeners (0, verbose);
1458 
1459  /* *INDENT-OFF* */
1460  pool_foreach (app, app_main.app_pool, ({
1461  application_format_listeners (app, verbose);
1462  }));
1463  /* *INDENT-ON* */
1464 }
1465 
1466 void
1468 {
1469  application_t *app;
1470 
1471  if (!pool_elts (app_main.app_pool))
1472  {
1473  vlib_cli_output (vm, "No active apps");
1474  return;
1475  }
1476 
1477  application_format_connects (0, verbose);
1478 
1479  /* *INDENT-OFF* */
1480  pool_foreach (app, app_main.app_pool, ({
1481  application_format_connects (app, verbose);
1482  }));
1483  /* *INDENT-ON* */
1484 }
1485 
1486 static clib_error_t *
1488  vlib_cli_command_t * cmd)
1489 {
1490  int do_server = 0, do_client = 0;
1491  application_t *app;
1492  u32 app_index = ~0;
1493  int verbose = 0;
1494 
1496 
1497  while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1498  {
1499  if (unformat (input, "server"))
1500  do_server = 1;
1501  else if (unformat (input, "client"))
1502  do_client = 1;
1503  else if (unformat (input, "%u", &app_index))
1504  ;
1505  else if (unformat (input, "verbose"))
1506  verbose = 1;
1507  else
1508  return clib_error_return (0, "unknown input `%U'",
1509  format_unformat_error, input);
1510  }
1511 
1512  if (do_server)
1513  {
1514  application_format_all_listeners (vm, verbose);
1515  return 0;
1516  }
1517 
1518  if (do_client)
1519  {
1520  application_format_all_clients (vm, verbose);
1521  return 0;
1522  }
1523 
1524  if (app_index != ~0)
1525  {
1526  app = application_get_if_valid (app_index);
1527  if (!app)
1528  return clib_error_return (0, "No app with index %u", app_index);
1529 
1530  vlib_cli_output (vm, "%U", format_application, app, /* verbose */ 1);
1531  return 0;
1532  }
1533 
1534  /* Print app related info */
1535  if (!do_server && !do_client)
1536  {
1537  vlib_cli_output (vm, "%U", format_application, 0, 0);
1538  /* *INDENT-OFF* */
1539  pool_foreach (app, app_main.app_pool, ({
1540  vlib_cli_output (vm, "%U", format_application, app, 0);
1541  }));
1542  /* *INDENT-ON* */
1543  }
1544 
1545  return 0;
1546 }
1547 
1548 /* *INDENT-OFF* */
1549 VLIB_CLI_COMMAND (show_app_command, static) =
1550 {
1551  .path = "show app",
1552  .short_help = "show app [server|client] [verbose]",
1553  .function = show_app_command_fn,
1554 };
1555 /* *INDENT-ON* */
1556 
1557 /*
1558  * fd.io coding-style-patch-verification: ON
1559  *
1560  * Local Variables:
1561  * eval: (c-set-style "gnu")
1562  * End:
1563  */
static void application_name_table_del(application_t *app)
Definition: application.c:409
u32 flags
Flags.
Definition: application.h:89
u32 al_index
App listener index in app&#39;s listener pool if a listener.
struct _vnet_app_worker_add_del_args vnet_app_worker_add_del_args_t
#define ENDPOINT_INVALID_INDEX
#define APP_NAMESPACE_INVALID_INDEX
session_t * app_worker_proxy_listener(app_worker_t *app, u8 fib_proto, u8 transport_proto)
u8 * name
Client name.
Definition: api_common.h:52
#define hash_set(h, key, value)
Definition: hash.h:255
void segment_manager_segment_reader_unlock(segment_manager_t *sm)
u32 flags
Definition: vhost_user.h:115
#define CLIB_UNUSED(x)
Definition: clib.h:82
static void application_detach_process(application_t *app, u32 api_client_index)
Definition: application.c:630
#define hash_unset(h, key)
Definition: hash.h:261
a
Definition: bitmap.h:538
u64 session_lookup_endpoint_listener(u32 table_index, session_endpoint_t *sep, u8 use_rules)
Lookup listener for session endpoint in table.
svm_fifo_t * tx_fifo
u32 ns_index
Namespace the application belongs to.
Definition: application.h:104
u8 application_has_global_scope(application_t *app)
Definition: application.c:1171
struct _segment_manager_properties segment_manager_properties_t
struct _vnet_connect_args vnet_connect_args_t
struct _vnet_unlisten_args_t vnet_unlisten_args_t
int application_change_listener_owner(session_t *s, app_worker_t *app_wrk)
Definition: application.c:1114
u32 session_index
Index in thread pool where session was allocated.
int session_stop_listen(session_t *s)
Ask transport to stop listening on local transport endpoint.
Definition: session.c:1045
#define session_cli_return_if_not_enabled()
Definition: session.h:516
u8 ip_is_local(u32 fib_index, ip46_address_t *ip46_address, u8 is_ip4)
Checks that an ip is local to the requested fib.
Definition: ip.c:55
segment_manager_properties_t * application_get_segment_manager_properties(u32 app_index)
Definition: application.c:1323
static clib_error_t * show_app_command_fn(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: application.c:1487
unsigned long u64
Definition: types.h:89
transport_connection_t * listen_session_get_transport(session_t *s)
Definition: session.c:1294
static void app_listener_id_parse(u32 listener_id, u32 *app_index, u32 *app_listener_index)
Definition: application.c:81
static app_worker_t * app_listener_select_worker(application_t *app, app_listener_t *al)
Definition: application.c:286
clib_memset(h->entries, 0, sizeof(h->entries[0]) *entries)
transport_connection_t * session_get_transport(session_t *s)
Definition: session.c:1283
application_t * application_lookup_name(const u8 *name)
Definition: application.c:426
svm_fifo_t * rx_fifo
Pointers to rx/tx buffers.
u8 ip_interface_has_address(u32 sw_if_index, ip46_address_t *ip, u8 is_ip4)
Definition: ip.c:100
app_listener_t * app_listener_get_w_session(session_t *ls)
Definition: application.c:109
int app_worker_connect_session(app_worker_t *app, session_endpoint_t *tep, u32 api_context)
u32 session_lookup_get_index_for_fib(u32 fib_proto, u32 fib_index)
static session_t * listen_session_get_from_handle(session_handle_t handle)
Definition: session.h:452
application_t * application_lookup(u32 api_client_index)
Definition: application.c:415
app_listener_t * app_listener_get(application_t *app, u32 app_listener_index)
Definition: application.c:45
app_listener_t * listeners
Pool of listeners for the app.
Definition: application.h:109
u32 wrk_map_index
Worker index in app&#39;s map pool.
Definition: application.h:40
session_handle_t app_listener_handle(app_listener_t *al)
Definition: application.c:75
static session_t * listen_session_alloc(u8 thread_index, session_type_t type)
Definition: session.h:465
static uword * clib_bitmap_set(uword *ai, uword i, uword value)
Sets the ith bit of a bitmap to new_value Removes trailing zeros from the bitmap. ...
Definition: bitmap.h:167
format_function_t format_ip46_address
Definition: format.h:61
#define hash_set_mem(h, key, value)
Definition: hash.h:275
static u8 session_endpoint_fib_proto(session_endpoint_t *sep)
Definition: session_types.h:91
static session_t * session_get(u32 si, u32 thread_index)
Definition: session.h:207
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:424
int vnet_unlisten(vnet_unlisten_args_t *a)
Definition: application.c:1065
segment_manager_properties_t * segment_manager_properties_init(segment_manager_properties_t *props)
uword * listeners_table
Lookup tables for listeners.
Definition: application.h:52
struct _vnet_application_add_tls_cert_args_t vnet_app_add_tls_cert_args_t
u32 flags
Session flags.
u8 app_is_builtin
Definition: application.h:65
#define pool_get(P, E)
Allocate an object E from a pool P (unspecified alignment).
Definition: pool.h:236
clib_error_t * vnet_app_add_tls_cert(vnet_app_add_tls_cert_args_t *a)
Definition: application.c:1330
unsigned char u8
Definition: types.h:56
app_worker_t * application_get_worker(application_t *app, u32 wrk_map_index)
Definition: application.c:674
#define SESSION_ENDPOINT_NULL
Definition: session_types.h:62
static u8 session_endpoint_in_ns(session_endpoint_t *sep)
Definition: application.c:917
int segment_manager_init(segment_manager_t *sm, u32 first_seg_size, u32 prealloc_fifo_pairs)
Initializes segment manager based on options provided.
application_t * application_get_if_valid(u32 app_index)
Definition: application.c:455
struct _vnet_bind_args_t vnet_listen_args_t
static session_handle_t session_handle(session_t *s)
u8 session_type_t
static int application_alloc_and_init(app_init_args_t *a)
Definition: application.c:504
#define SESSION_INVALID_INDEX
Definition: session_table.h:58
int application_is_proxy(application_t *app)
Definition: application.c:1147
enum ssvm_segment_type_ ssvm_segment_type_t
#define pool_foreach(VAR, POOL, BODY)
Iterate through pool.
Definition: pool.h:493
u32 first_segment_manager
First segment manager has in the the first segment the application&#39;s event fifo.
Definition: application.h:59
#define SESSION_LISTENER_PREFIX
Definition: session_types.h:22
struct _vnet_disconnect_args_t vnet_disconnect_args_t
void segment_manager_dealloc_fifos(svm_fifo_t *rx_fifo, svm_fifo_t *tx_fifo)
svm_fifo_segment_private_t * segment_manager_get_segment_w_lock(segment_manager_t *sm, u32 segment_index)
Reads a segment from the segment manager&#39;s pool and acquires reader lock.
u8 * format_memory_size(u8 *s, va_list *va)
Definition: std-formats.c:193
static app_listener_t * app_listener_get_if_valid(application_t *app, u32 app_listener_index)
Definition: application.c:51
#define clib_error_return(e, args...)
Definition: error.h:99
unsigned int u32
Definition: types.h:88
u32 app_namespace_index_from_id(const u8 *ns_id)
u16 proxied_transports
Definition: application.h:106
static int app_validate_namespace(u8 *namespace_id, u64 secret, u32 *app_ns_index)
Definition: application.c:797
u8 tls_engine
Preferred tls engine.
Definition: application.h:122
segment_manager_t * segment_manager_new()
struct _vnet_app_attach_args_t vnet_app_attach_args_t
struct _session_endpoint_cfg session_endpoint_cfg_t
static const u8 * app_get_name(application_t *app)
Definition: application.c:347
#define pool_flush(VAR, POOL, BODY)
Remove all elements from a pool in a safe way.
Definition: pool.h:553
static app_main_t app_main
Definition: application.c:22
static void application_verify_cb_fns(session_cb_vft_t *cb_fns)
Definition: application.c:464
clib_error_t * vnet_app_add_tls_key(vnet_app_add_tls_key_args_t *a)
Definition: application.c:1342
int application_is_builtin(application_t *app)
Definition: application.c:1153
#define hash_get(h, key)
Definition: hash.h:249
u32 app_namespace_get_fib_index(app_namespace_t *app_ns, u8 fib_proto)
static session_type_t session_type_from_proto_and_ip(transport_proto_t proto, u8 is_ip4)
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:514
#define hash_unset_mem(h, key)
Definition: hash.h:291
session_t * app_listener_get_local_session(app_listener_t *al)
Definition: application.c:310
#define VL_API_INVALID_FI
Definition: api_common.h:76
static uword clib_bitmap_first_set(uword *ai)
Return the lowest numbered set bit in a bitmap.
Definition: bitmap.h:385
static void application_api_table_del(u32 api_client_index)
Definition: application.c:397
static session_t * session_get_from_handle(session_handle_t handle)
Definition: session.h:227
session_t * app_listener_get_session(app_listener_t *al)
Definition: application.c:301
u32 app_index
Index of application that owns the listener.
struct _unformat_input_t unformat_input_t
unsigned short u16
Definition: types.h:57
const u8 * application_name_from_index(u32 app_index)
Returns app name for app-index.
Definition: application.c:381
static u32 app_worker_map_index(application_t *app, app_worker_map_t *map)
Definition: application.c:327
#define pool_put(P, E)
Free an object E in pool P.
Definition: pool.h:286
#define APP_INVALID_INDEX
Definition: application.h:164
#define vec_dup(V)
Return copy of vector (no header, no alignment)
Definition: vec.h:375
app_namespace_t * app_namespace_get(u32 index)
u32 wrk_index
Worker index in global worker pool.
Definition: application.h:37
u32 application_session_table(application_t *app, u8 fib_proto)
Definition: application.c:353
app_worker_t * app_worker_alloc(application_t *app)
u8 name[64]
Definition: memclnt.api:152
static u64 listen_session_get_handle(session_t *s)
Definition: session.h:445
u8 * format_app_worker_listener(u8 *s, va_list *args)
app_worker_map_t * worker_maps
Pool of mappings that keep track of workers associated to this app.
Definition: application.h:98
int vnet_application_attach(vnet_app_attach_args_t *a)
Attach application to vpp.
Definition: application.c:839
static session_t * session_get_from_handle_if_valid(session_handle_t handle)
Definition: session.h:236
#define pool_free(p)
Free a pool.
Definition: pool.h:407
An API client registration, only in vpp/vlib.
Definition: api_common.h:45
u32 application_local_session_table(application_t *app)
Definition: application.c:368
#define UNFORMAT_END_OF_INPUT
Definition: format.h:144
uword * app_by_name
Hash table of builtin apps by name.
Definition: application.h:143
vlib_main_t * vm
Definition: buffer.c:312
static void app_listener_free(application_t *app, app_listener_t *app_listener)
Definition: application.c:59
session_t * app_worker_first_listener(app_worker_t *app, u8 fib_proto, u8 transport_proto)
#define vec_free(V)
Free vector&#39;s memory (no header).
Definition: vec.h:341
static application_t * application_alloc(void)
Definition: application.c:437
int session_lookup_del_session_endpoint(u32 table_index, session_endpoint_t *sep)
void session_free(session_t *s)
Definition: session.c:175
#define clib_warning(format, args...)
Definition: error.h:59
#define SESSION_INVALID_HANDLE
Definition: session_table.h:59
struct _stream_session_cb_vft session_cb_vft_t
static void session_endpoint_update_for_app(session_endpoint_cfg_t *sep, application_t *app, u8 is_connect)
Definition: application.c:932
clib_bitmap_t * workers
workers accepting connections
Definition: application.h:75
struct _transport_connection transport_connection_t
segment_manager_properties_t sm_properties
Segment manager properties.
Definition: application.h:95
#define pool_is_free_index(P, I)
Use free bitmap to query whether given index is free.
Definition: pool.h:283
const u8 * app_namespace_id_from_index(u32 index)
void application_format_all_clients(vlib_main_t *vm, int verbose)
Definition: application.c:1467
static vl_api_registration_t * vl_api_client_index_to_registration(u32 index)
Definition: api.h:56
int session_lookup_add_session_endpoint(u32 table_index, session_endpoint_t *sep, u64 value)
static u32 vl_api_registration_file_index(vl_api_registration_t *reg)
Definition: api.h:64
static void application_name_table_add(application_t *app)
Definition: application.c:403
struct _app_namespace app_namespace_t
application_t * application_get(u32 app_index)
Definition: application.c:447
static u32 segment_manager_index(segment_manager_t *sm)
#define VLIB_CLI_COMMAND(x,...)
Definition: cli.h:155
int session_listen(session_t *ls, session_endpoint_cfg_t *sep)
Ask transport to listen on session endpoint.
Definition: session.c:1017
static u32 session_index_from_handle(session_handle_t handle)
#define hash_create(elts, value_bytes)
Definition: hash.h:696
int app_listener_alloc_and_init(application_t *app, session_endpoint_cfg_t *sep, app_listener_t **listener)
Definition: application.c:162
app_listener_t * app_listener_get_w_handle(session_handle_t handle)
Definition: application.c:120
#define ASSERT(truth)
int application_alloc_worker_and_init(application_t *app, app_worker_t **wrk)
Definition: application.c:707
app_worker_t * application_listener_select_worker(session_t *ls)
Definition: application.c:696
static u8 * app_name_from_api_index(u32 api_client_index)
Definition: application.c:819
int vnet_listen(vnet_listen_args_t *a)
Definition: application.c:977
uword * app_by_api_client_index
Hash table of apps by api client index.
Definition: application.h:138
int vnet_application_detach(vnet_app_detach_args_t *a)
Detach application from vpp.
Definition: application.c:899
void application_remove_proxy(application_t *app)
Definition: application.c:1301
session_cb_vft_t cb_fns
Callbacks: shoulder-taps for the server/client.
Definition: application.h:92
struct _vnet_application_add_tls_key_args_t vnet_app_add_tls_key_args_t
enum _transport_proto transport_proto_t
u8 * tls_key
PEM encoded key.
Definition: application.h:119
#define clib_bitmap_free(v)
Free a bitmap.
Definition: bitmap.h:92
u32 accept_rotor
last worker to accept a connection
Definition: application.h:76
static svm_msg_q_t * segment_manager_event_queue(segment_manager_t *sm)
struct _vnet_app_detach_args_t vnet_app_detach_args_t
void app_listener_handle_parse(session_handle_t handle, u32 *app_index, u32 *app_listener_index)
Definition: application.c:89
int vnet_connect(vnet_connect_args_t *a)
Definition: application.c:1029
static vlib_main_t * vlib_get_main(void)
Definition: global_funcs.h:23
u8 * name
Definition: ssvm.h:86
static void listen_session_free(session_t *s)
Definition: session.h:481
u8 ip_is_zero(ip46_address_t *ip46_address, u8 is_ip4)
Definition: ip.c:20
u32 app_index
App index in app pool.
Definition: application.h:86
static u32 app_listener_id(app_listener_t *al)
Definition: application.c:68
app_worker_t * app_worker_get(u32 wrk_index)
application_t * app_pool
Pool from which we allocate all applications.
Definition: application.h:133
u64 segment_manager_segment_handle(segment_manager_t *sm, svm_fifo_segment_private_t *segment)
u64 session_handle_t
static void application_free(application_t *app)
Definition: application.c:591
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
u8 * format_application(u8 *s, va_list *args)
Definition: application.c:1403
u8 * name
Name registered by builtin apps.
Definition: application.h:101
void session_close(session_t *s)
Initialize session closing procedure.
Definition: session.c:1069
u64 uword
Definition: types.h:112
static u8 session_endpoint_is_zero(session_endpoint_t *sep)
static app_worker_map_t * app_worker_map_alloc(application_t *app)
Definition: application.c:318
ssvm_private_t * session_main_get_evt_q_segment(void)
Definition: session.c:1217
connectionless service
int vnet_disconnect_session(vnet_disconnect_args_t *a)
Definition: application.c:1094
app_worker_t * application_get_default_worker(application_t *app)
Definition: application.c:684
struct _segment_manager segment_manager_t
#define SESSION_ENDPOINT_CFG_NULL
Definition: session_types.h:72
u32 application_n_workers(application_t *app)
Definition: application.c:690
void app_listener_cleanup(app_listener_t *al)
Definition: application.c:259
int vnet_app_worker_add_del(vnet_app_worker_add_del_args_t *a)
Definition: application.c:747
static void application_api_table_add(u32 app_index, u32 api_client_index)
Definition: application.c:390
static void application_format_listeners(application_t *app, int verbose)
Definition: application.c:1354
int app_worker_start_listen(app_worker_t *app_wrk, app_listener_t *lstnr)
static clib_error_t * application_start_stop_proxy_fib_proto(application_t *app, u8 fib_proto, u8 transport_proto, u8 is_start)
Definition: application.c:1177
#define hash_get_mem(h, key)
Definition: hash.h:269
#define app_interface_check_thread_and_barrier(_fn, _arg)
Definition: application.c:24
u32 app_index
Index of owning app.
Definition: application.h:43
int session_lookup_add_connection(transport_connection_t *tc, u64 value)
Add transport connection to a session table.
app_listener_t * app_listener_lookup(application_t *app, session_endpoint_cfg_t *sep_ext)
Definition: application.c:130
static void application_start_stop_proxy_local_scope(application_t *app, u8 transport_proto, u8 is_start)
Definition: application.c:1242
u8 * format_unformat_error(u8 *s, va_list *va)
Definition: unformat.c:91
int app_worker_stop_listen(app_worker_t *app_wrk, app_listener_t *al)
void app_worker_free(app_worker_t *app_wrk)
#define clib_error_return_code(e, code, flags, args...)
Definition: error.h:93
u8 * tls_cert
Certificate to be used for listen sessions.
Definition: application.h:116
#define transport_proto_foreach(VAR, BODY)
Definition: transport.h:74
static app_worker_map_t * app_worker_map_get(application_t *app, u32 map_index)
Definition: application.c:339
#define vec_foreach(var, vec)
Vector iterator.
u32 app_wrk_index
Index of the app worker that owns the session.
void application_setup_proxy(application_t *app)
Definition: application.c:1285
void app_worker_format_connects(app_worker_t *app_wrk, int verbose)
static u8 session_endpoint_is_local(session_endpoint_t *sep)
Definition: session_types.h:97
static u8 application_verify_cfg(ssvm_segment_type_t st)
Check app config for given segment type.
Definition: application.c:482
static void application_format_connects(application_t *app, int verbose)
Definition: application.c:1383
int application_is_builtin_proxy(application_t *app)
Definition: application.c:1159
u32 api_client_index
API index for the worker.
Definition: application.h:63
struct _session_endpoint session_endpoint_t
static void app_worker_map_free(application_t *app, app_worker_map_t *map)
Definition: application.c:333
void application_start_stop_proxy(application_t *app, transport_proto_t transport_proto, u8 is_start)
Definition: application.c:1269
segment_manager_properties_t * application_segment_manager_properties(application_t *app)
Definition: application.c:1317
svm_msg_q_t * event_queue
Application listens for events on this svm queue.
Definition: application.h:46
static transport_service_type_t session_transport_service_type(session_t *s)
void vlib_cli_output(vlib_main_t *vm, char *fmt,...)
Definition: cli.c:762
void application_format_all_listeners(vlib_main_t *vm, int verbose)
Definition: application.c:1447
#define APP_DBG(_fmt, _args...)
Definition: application.h:29
static segment_manager_t * segment_manager_get(u32 index)
static app_listener_t * app_listener_get_w_id(u32 listener_id)
Definition: application.c:96
static session_t * listen_session_get(u32 ls_index)
Definition: session.h:475
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:972
static uword unformat_check_input(unformat_input_t *i)
Definition: format.h:170
void ct_session_endpoint(session_t *ll, session_endpoint_t *sep)
static app_listener_t * app_listener_alloc(application_t *app)
Definition: application.c:32
u8 application_has_local_scope(application_t *app)
Definition: application.c:1165
static uword pool_elts(void *v)
Number of active elements in a pool.
Definition: pool.h:128