2 * Copyright (c) 2015-2019 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/vnet.h>
17 #include <vlibmemory/api.h>
18 #include <vnet/session/application.h>
19 #include <vnet/session/application_interface.h>
20 #include <vnet/session/application_local.h>
21 #include <vnet/session/session_rules_table.h>
22 #include <vnet/session/session_table.h>
23 #include <vnet/session/session.h>
25 #include <vnet/ip/ip_types_api.h>
27 #include <vnet/vnet_msg_enum.h>
29 #define vl_typedefs /* define message structures */
30 #include <vnet/vnet_all_api_h.h>
33 #define vl_endianfun /* define message structures */
34 #include <vnet/vnet_all_api_h.h>
37 /* instantiate all the print functions we know about */
38 #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
40 #include <vnet/vnet_all_api_h.h>
43 #include <vlibapi/api_helper_macros.h>
45 #define foreach_session_api_msg \
46 _(APP_ATTACH, app_attach) \
47 _(APPLICATION_DETACH, application_detach) \
48 _(SESSION_ENABLE_DISABLE, session_enable_disable) \
49 _(APP_NAMESPACE_ADD_DEL, app_namespace_add_del) \
50 _(SESSION_RULE_ADD_DEL, session_rule_add_del) \
51 _(SESSION_RULES_DUMP, session_rules_dump) \
52 _(APPLICATION_TLS_CERT_ADD, application_tls_cert_add) \
53 _(APPLICATION_TLS_KEY_ADD, application_tls_key_add) \
54 _(APP_ADD_CERT_KEY_PAIR, app_add_cert_key_pair) \
55 _(APP_DEL_CERT_KEY_PAIR, app_del_cert_key_pair) \
56 _(APP_WORKER_ADD_DEL, app_worker_add_del) \
58 static transport_proto_t
59 api_session_transport_proto_decode (const vl_api_transport_proto_t * api_tp)
63 case TRANSPORT_PROTO_API_TCP:
64 return TRANSPORT_PROTO_TCP;
65 case TRANSPORT_PROTO_API_UDP:
66 return TRANSPORT_PROTO_UDP;
67 case TRANSPORT_PROTO_API_TLS:
68 return TRANSPORT_PROTO_TLS;
69 case TRANSPORT_PROTO_API_QUIC:
70 return TRANSPORT_PROTO_QUIC;
72 return TRANSPORT_PROTO_NONE;
76 static vl_api_transport_proto_t
77 api_session_transport_proto_encode (const transport_proto_t tp)
81 case TRANSPORT_PROTO_TCP:
82 return TRANSPORT_PROTO_API_TCP;
83 case TRANSPORT_PROTO_UDP:
84 return TRANSPORT_PROTO_API_UDP;
85 case TRANSPORT_PROTO_TLS:
86 return TRANSPORT_PROTO_API_TLS;
87 case TRANSPORT_PROTO_QUIC:
88 return TRANSPORT_PROTO_API_QUIC;
90 return TRANSPORT_PROTO_API_NONE;
95 session_send_fds (vl_api_registration_t * reg, int fds[], int n_fds)
98 if (vl_api_registration_file_index (reg) == VL_API_INVALID_FI)
99 return SESSION_E_BAPI_NO_FD;
100 error = vl_api_send_fd_msg (reg, fds, n_fds);
103 clib_error_report (error);
104 return SESSION_E_BAPI_SEND_FD;
110 mq_try_lock_and_alloc_msg (svm_msg_q_t * app_mq, svm_msg_q_msg_t * msg)
116 rv = svm_msg_q_lock_and_alloc_msg_w_ring (app_mq,
117 SESSION_MQ_CTRL_EVT_RING,
124 clib_warning ("failed to alloc msg");
129 mq_send_session_accepted_cb (session_t * s)
131 app_worker_t *app_wrk = app_worker_get (s->app_wrk_index);
132 svm_msg_q_msg_t _msg, *msg = &_msg;
134 fifo_segment_t *eq_seg;
136 session_accepted_msg_t *mp;
137 session_event_t *evt;
140 app = application_get (app_wrk->app_index);
141 app_mq = app_wrk->event_queue;
142 if (mq_try_lock_and_alloc_msg (app_mq, msg))
143 return SESSION_E_MQ_MSG_ALLOC;
145 evt = svm_msg_q_msg_data (app_mq, msg);
146 clib_memset (evt, 0, sizeof (*evt));
147 evt->event_type = SESSION_CTRL_EVT_ACCEPTED;
148 mp = (session_accepted_msg_t *) evt->data;
149 clib_memset (mp, 0, sizeof (*mp));
150 mp->context = app->app_index;
151 mp->server_rx_fifo = pointer_to_uword (s->rx_fifo->shr);
152 mp->server_tx_fifo = pointer_to_uword (s->tx_fifo->shr);
153 mp->segment_handle = session_segment_handle (s);
154 mp->flags = s->flags;
156 eq_seg = session_main_get_evt_q_segment ();
158 if (session_has_transport (s))
160 listener = listen_session_get_from_handle (s->listener_handle);
161 mp->listener_handle = app_listen_session_handle (listener);
162 if (application_is_proxy (app))
165 app_worker_first_listener (app_wrk, session_get_fib_proto (s),
166 session_get_transport_proto (s));
168 mp->listener_handle = listen_session_get_handle (listener);
170 mp->vpp_event_queue_address =
171 fifo_segment_msg_q_offset (eq_seg, s->thread_index);
172 mp->mq_index = s->thread_index;
173 mp->handle = session_handle (s);
175 session_get_endpoint (s, &mp->rmt, 0 /* is_lcl */ );
181 ct = (ct_connection_t *) session_get_transport (s);
182 listener = listen_session_get_from_handle (s->listener_handle);
183 mp->listener_handle = app_listen_session_handle (listener);
184 mp->rmt.is_ip4 = session_type_is_ip4 (listener->session_type);
185 mp->rmt.port = ct->c_rmt_port;
186 mp->handle = session_handle (s);
187 mp->vpp_event_queue_address =
188 fifo_segment_msg_q_offset (eq_seg, s->thread_index);
189 mp->mq_index = s->thread_index;
191 svm_msg_q_add_and_unlock (app_mq, msg);
197 mq_send_session_close_evt (app_worker_t * app_wrk, session_handle_t sh,
198 session_evt_type_t evt_type)
200 svm_msg_q_msg_t _msg, *msg = &_msg;
201 session_disconnected_msg_t *mp;
203 session_event_t *evt;
205 app_mq = app_wrk->event_queue;
206 if (mq_try_lock_and_alloc_msg (app_mq, msg))
208 evt = svm_msg_q_msg_data (app_mq, msg);
209 clib_memset (evt, 0, sizeof (*evt));
210 evt->event_type = evt_type;
211 mp = (session_disconnected_msg_t *) evt->data;
213 mp->context = app_wrk->api_client_index;
214 svm_msg_q_add_and_unlock (app_mq, msg);
218 mq_notify_close_subscribers (u32 app_index, session_handle_t sh,
219 svm_fifo_t * f, session_evt_type_t evt_type)
221 app_worker_t *app_wrk;
225 app = application_get (app_index);
229 for (i = 0; i < f->shr->n_subscribers; i++)
231 if (!(app_wrk = application_get_worker (app, f->shr->subscribers[i])))
233 mq_send_session_close_evt (app_wrk, sh, SESSION_CTRL_EVT_DISCONNECTED);
238 mq_send_session_disconnected_cb (session_t * s)
240 app_worker_t *app_wrk = app_worker_get (s->app_wrk_index);
241 session_handle_t sh = session_handle (s);
243 mq_send_session_close_evt (app_wrk, session_handle (s),
244 SESSION_CTRL_EVT_DISCONNECTED);
246 if (svm_fifo_n_subscribers (s->rx_fifo))
247 mq_notify_close_subscribers (app_wrk->app_index, sh, s->rx_fifo,
248 SESSION_CTRL_EVT_DISCONNECTED);
252 mq_send_session_reset_cb (session_t * s)
254 app_worker_t *app_wrk = app_worker_get (s->app_wrk_index);
255 session_handle_t sh = session_handle (s);
257 mq_send_session_close_evt (app_wrk, sh, SESSION_CTRL_EVT_RESET);
259 if (svm_fifo_n_subscribers (s->rx_fifo))
260 mq_notify_close_subscribers (app_wrk->app_index, sh, s->rx_fifo,
261 SESSION_CTRL_EVT_RESET);
265 mq_send_session_connected_cb (u32 app_wrk_index, u32 api_context,
266 session_t * s, session_error_t err)
268 svm_msg_q_msg_t _msg, *msg = &_msg;
269 session_connected_msg_t *mp;
271 transport_connection_t *tc;
272 fifo_segment_t *eq_seg;
273 app_worker_t *app_wrk;
274 session_event_t *evt;
276 app_wrk = app_worker_get (app_wrk_index);
277 app_mq = app_wrk->event_queue;
280 clib_warning ("app %u with api index: %u not attached",
281 app_wrk->app_index, app_wrk->api_client_index);
285 if (mq_try_lock_and_alloc_msg (app_mq, msg))
286 return SESSION_E_MQ_MSG_ALLOC;
288 evt = svm_msg_q_msg_data (app_mq, msg);
289 clib_memset (evt, 0, sizeof (*evt));
290 evt->event_type = SESSION_CTRL_EVT_CONNECTED;
291 mp = (session_connected_msg_t *) evt->data;
292 clib_memset (mp, 0, sizeof (*mp));
293 mp->context = api_context;
298 eq_seg = session_main_get_evt_q_segment ();
300 if (session_has_transport (s))
302 tc = session_get_transport (s);
305 clib_warning ("failed to retrieve transport!");
306 err = SESSION_E_REFUSED;
310 mp->handle = session_handle (s);
311 mp->vpp_event_queue_address =
312 fifo_segment_msg_q_offset (eq_seg, s->thread_index);
314 session_get_endpoint (s, &mp->lcl, 1 /* is_lcl */ );
316 mp->server_rx_fifo = pointer_to_uword (s->rx_fifo->shr);
317 mp->server_tx_fifo = pointer_to_uword (s->tx_fifo->shr);
318 mp->segment_handle = session_segment_handle (s);
322 ct_connection_t *cct;
325 cct = (ct_connection_t *) session_get_transport (s);
326 mp->handle = session_handle (s);
327 mp->lcl.port = cct->c_lcl_port;
328 mp->lcl.is_ip4 = cct->c_is_ip4;
329 mp->vpp_event_queue_address =
330 fifo_segment_msg_q_offset (eq_seg, s->thread_index);
331 mp->server_rx_fifo = pointer_to_uword (s->rx_fifo->shr);
332 mp->server_tx_fifo = pointer_to_uword (s->tx_fifo->shr);
333 mp->segment_handle = session_segment_handle (s);
334 ss = ct_session_get_peer (s);
335 mp->ct_rx_fifo = pointer_to_uword (ss->tx_fifo->shr);
336 mp->ct_tx_fifo = pointer_to_uword (ss->rx_fifo->shr);
337 mp->ct_segment_handle = session_segment_handle (ss);
343 svm_msg_q_add_and_unlock (app_mq, msg);
348 mq_send_session_bound_cb (u32 app_wrk_index, u32 api_context,
349 session_handle_t handle, int rv)
351 svm_msg_q_msg_t _msg, *msg = &_msg;
353 transport_endpoint_t tep;
354 session_bound_msg_t *mp;
355 fifo_segment_t *eq_seg;
356 app_worker_t *app_wrk;
357 session_event_t *evt;
360 app_wrk = app_worker_get (app_wrk_index);
361 app_mq = app_wrk->event_queue;
364 clib_warning ("app %u with api index: %u not attached",
365 app_wrk->app_index, app_wrk->api_client_index);
369 if (mq_try_lock_and_alloc_msg (app_mq, msg))
370 return SESSION_E_MQ_MSG_ALLOC;
372 evt = svm_msg_q_msg_data (app_mq, msg);
373 clib_memset (evt, 0, sizeof (*evt));
374 evt->event_type = SESSION_CTRL_EVT_BOUND;
375 mp = (session_bound_msg_t *) evt->data;
376 mp->context = api_context;
382 al = app_listener_get_w_handle (handle);
383 if (al->session_index != SESSION_INVALID_INDEX)
384 ls = app_listener_get_session (al);
386 ls = app_listener_get_local_session (al);
388 session_get_endpoint (ls, &tep, 1 /* is_lcl */ );
389 mp->lcl_port = tep.port;
390 mp->lcl_is_ip4 = tep.is_ip4;
391 clib_memcpy_fast (mp->lcl_ip, &tep.ip, sizeof (tep.ip));
393 eq_seg = session_main_get_evt_q_segment ();
394 mp->vpp_evt_q = fifo_segment_msg_q_offset (eq_seg, ls->thread_index);
396 if (session_transport_service_type (ls) == TRANSPORT_SERVICE_CL)
398 mp->rx_fifo = pointer_to_uword (ls->rx_fifo->shr);
399 mp->tx_fifo = pointer_to_uword (ls->tx_fifo->shr);
400 mp->segment_handle = session_segment_handle (ls);
405 svm_msg_q_add_and_unlock (app_mq, msg);
410 mq_send_unlisten_reply (app_worker_t * app_wrk, session_handle_t sh,
413 svm_msg_q_msg_t _msg, *msg = &_msg;
414 session_unlisten_reply_msg_t *ump;
416 session_event_t *evt;
418 app_mq = app_wrk->event_queue;
419 if (mq_try_lock_and_alloc_msg (app_mq, msg))
422 evt = svm_msg_q_msg_data (app_mq, msg);
423 clib_memset (evt, 0, sizeof (*evt));
424 evt->event_type = SESSION_CTRL_EVT_UNLISTEN_REPLY;
425 ump = (session_unlisten_reply_msg_t *) evt->data;
426 ump->context = context;
429 svm_msg_q_add_and_unlock (app_mq, msg);
433 mq_send_session_migrate_cb (session_t * s, session_handle_t new_sh)
435 svm_msg_q_msg_t _msg, *msg = &_msg;
436 session_migrated_msg_t *mp;
437 fifo_segment_t *eq_seg;
438 app_worker_t *app_wrk;
439 session_event_t *evt;
443 thread_index = session_thread_from_handle (new_sh);
444 eq_seg = session_main_get_evt_q_segment ();
446 app_wrk = app_worker_get (s->app_wrk_index);
447 app_mq = app_wrk->event_queue;
448 if (mq_try_lock_and_alloc_msg (app_mq, msg))
451 evt = svm_msg_q_msg_data (app_mq, msg);
452 clib_memset (evt, 0, sizeof (*evt));
453 evt->event_type = SESSION_CTRL_EVT_MIGRATED;
454 mp = (session_migrated_msg_t *) evt->data;
455 mp->handle = session_handle (s);
456 mp->new_handle = new_sh;
457 mp->vpp_thread_index = thread_index;
458 mp->vpp_evt_q = fifo_segment_msg_q_offset (eq_seg, thread_index);
459 mp->segment_handle = session_segment_handle (s);
460 svm_msg_q_add_and_unlock (app_mq, msg);
464 mq_send_add_segment_cb (u32 app_wrk_index, u64 segment_handle)
466 int fds[SESSION_N_FD_TYPE], n_fds = 0;
467 svm_msg_q_msg_t _msg, *msg = &_msg;
468 session_app_add_segment_msg_t *mp;
469 vl_api_registration_t *reg;
470 app_worker_t *app_wrk;
471 session_event_t *evt;
477 app_wrk = app_worker_get (app_wrk_index);
479 reg = vl_mem_api_client_index_to_registration (app_wrk->api_client_index);
482 clib_warning ("no api registration for client: %u",
483 app_wrk->api_client_index);
487 fs = segment_manager_get_segment_w_handle (segment_handle);
489 if (ssvm_type (sp) == SSVM_SEGMENT_MEMFD)
491 if (vl_api_registration_file_index (reg) == VL_API_INVALID_FI)
493 clib_warning ("can't send memfd fd");
497 fd_flags |= SESSION_FD_F_MEMFD_SEGMENT;
502 app_mq = app_wrk->event_queue;
503 if (mq_try_lock_and_alloc_msg (app_mq, msg))
507 session_send_fds (reg, fds, n_fds);
509 evt = svm_msg_q_msg_data (app_mq, msg);
510 clib_memset (evt, 0, sizeof (*evt));
511 evt->event_type = SESSION_CTRL_EVT_APP_ADD_SEGMENT;
512 mp = (session_app_add_segment_msg_t *) evt->data;
513 clib_memset (mp, 0, sizeof (*mp));
514 mp->segment_size = sp->ssvm_size;
515 mp->fd_flags = fd_flags;
516 mp->segment_handle = segment_handle;
517 strncpy ((char *) mp->segment_name, (char *) sp->name,
518 sizeof (mp->segment_name) - 1);
520 svm_msg_q_add_and_unlock (app_mq, msg);
526 mq_send_del_segment_cb (u32 app_wrk_index, u64 segment_handle)
528 svm_msg_q_msg_t _msg, *msg = &_msg;
529 session_app_del_segment_msg_t *mp;
530 vl_api_registration_t *reg;
531 app_worker_t *app_wrk;
532 session_event_t *evt;
535 app_wrk = app_worker_get (app_wrk_index);
536 reg = vl_mem_api_client_index_to_registration (app_wrk->api_client_index);
539 clib_warning ("no registration: %u", app_wrk->api_client_index);
543 app_mq = app_wrk->event_queue;
544 if (mq_try_lock_and_alloc_msg (app_mq, msg))
547 evt = svm_msg_q_msg_data (app_mq, msg);
548 clib_memset (evt, 0, sizeof (*evt));
549 evt->event_type = SESSION_CTRL_EVT_APP_DEL_SEGMENT;
550 mp = (session_app_del_segment_msg_t *) evt->data;
551 clib_memset (mp, 0, sizeof (*mp));
552 mp->segment_handle = segment_handle;
553 svm_msg_q_add_and_unlock (app_mq, msg);
559 mq_send_session_cleanup_cb (session_t * s, session_cleanup_ntf_t ntf)
561 svm_msg_q_msg_t _msg, *msg = &_msg;
562 session_cleanup_msg_t *mp;
564 session_event_t *evt;
565 app_worker_t *app_wrk;
567 /* Propagate transport cleanup notifications only if app didn't close */
568 if (ntf == SESSION_CLEANUP_TRANSPORT
569 && s->session_state != SESSION_STATE_TRANSPORT_DELETED)
572 app_wrk = app_worker_get_if_valid (s->app_wrk_index);
576 app_mq = app_wrk->event_queue;
577 if (mq_try_lock_and_alloc_msg (app_mq, msg))
580 evt = svm_msg_q_msg_data (app_mq, msg);
581 clib_memset (evt, 0, sizeof (*evt));
582 evt->event_type = SESSION_CTRL_EVT_CLEANUP;
583 mp = (session_cleanup_msg_t *) evt->data;
584 mp->handle = session_handle (s);
586 svm_msg_q_add_and_unlock (app_mq, msg);
589 static session_cb_vft_t session_mq_cb_vft = {
590 .session_accept_callback = mq_send_session_accepted_cb,
591 .session_disconnect_callback = mq_send_session_disconnected_cb,
592 .session_connected_callback = mq_send_session_connected_cb,
593 .session_reset_callback = mq_send_session_reset_cb,
594 .session_migrate_callback = mq_send_session_migrate_cb,
595 .session_cleanup_callback = mq_send_session_cleanup_cb,
596 .add_segment_callback = mq_send_add_segment_cb,
597 .del_segment_callback = mq_send_del_segment_cb,
601 vl_api_session_enable_disable_t_handler (vl_api_session_enable_disable_t * mp)
603 vl_api_session_enable_disable_reply_t *rmp;
604 vlib_main_t *vm = vlib_get_main ();
607 vnet_session_enable_disable (vm, mp->is_enable);
608 REPLY_MACRO (VL_API_SESSION_ENABLE_DISABLE_REPLY);
612 vl_api_app_attach_t_handler (vl_api_app_attach_t * mp)
614 int rv = 0, fds[SESSION_N_FD_TYPE], n_fds = 0;
615 vl_api_app_attach_reply_t *rmp;
616 fifo_segment_t *segp, *evt_q_segment = 0;
617 vnet_app_attach_args_t _a, *a = &_a;
618 u8 fd_flags = 0, ctrl_thread;
619 vl_api_registration_t *reg;
621 reg = vl_api_client_index_to_registration (mp->client_index);
625 if (!session_main_is_enabled () || appns_sapi_enabled ())
627 rv = VNET_API_ERROR_FEATURE_DISABLED;
630 /* Only support binary api with socket transport */
631 if (vl_api_registration_file_index (reg) == VL_API_INVALID_FI)
633 rv = VNET_API_ERROR_APP_UNSUPPORTED_CFG;
637 STATIC_ASSERT (sizeof (u64) * APP_OPTIONS_N_OPTIONS <=
638 sizeof (mp->options),
639 "Out of options, fix api message definition");
641 clib_memset (a, 0, sizeof (*a));
642 a->api_client_index = mp->client_index;
643 a->options = mp->options;
644 a->session_cb_vft = &session_mq_cb_vft;
645 a->namespace_id = vl_api_from_api_to_new_vec (mp, &mp->namespace_id);
647 if ((rv = vnet_application_attach (a)))
649 clib_warning ("attach returned: %d", rv);
650 vec_free (a->namespace_id);
653 vec_free (a->namespace_id);
655 /* Send event queues segment */
656 if ((evt_q_segment = session_main_get_evt_q_segment ()))
658 fd_flags |= SESSION_FD_F_VPP_MQ_SEGMENT;
659 fds[n_fds] = evt_q_segment->ssvm.fd;
662 /* Send fifo segment fd if needed */
663 if (ssvm_type (a->segment) == SSVM_SEGMENT_MEMFD)
665 fd_flags |= SESSION_FD_F_MEMFD_SEGMENT;
666 fds[n_fds] = a->segment->fd;
669 if (a->options[APP_OPTIONS_FLAGS] & APP_OPTIONS_FLAGS_EVT_MQ_USE_EVENTFD)
671 fd_flags |= SESSION_FD_F_MQ_EVENTFD;
672 fds[n_fds] = svm_msg_q_get_producer_eventfd (a->app_evt_q);
678 REPLY_MACRO2 (VL_API_APP_ATTACH_REPLY, ({
681 ctrl_thread = vlib_num_workers () ? 1 : 0;
682 segp = (fifo_segment_t *) a->segment;
683 rmp->app_index = clib_host_to_net_u32 (a->app_index);
684 rmp->app_mq = fifo_segment_msg_q_offset (segp, 0);
686 fifo_segment_msg_q_offset (evt_q_segment, ctrl_thread);
687 rmp->vpp_ctrl_mq_thread = ctrl_thread;
689 rmp->fd_flags = fd_flags;
690 if (vec_len (segp->ssvm.name))
692 vl_api_vec_to_api_string (segp->ssvm.name, &rmp->segment_name);
694 rmp->segment_size = segp->ssvm.ssvm_size;
695 rmp->segment_handle = clib_host_to_net_u64 (a->segment_handle);
701 session_send_fds (reg, fds, n_fds);
705 vl_api_app_worker_add_del_t_handler (vl_api_app_worker_add_del_t * mp)
707 int rv = 0, fds[SESSION_N_FD_TYPE], n_fds = 0;
708 vl_api_app_worker_add_del_reply_t *rmp;
709 vl_api_registration_t *reg;
713 if (!session_main_is_enabled () || appns_sapi_enabled ())
715 rv = VNET_API_ERROR_FEATURE_DISABLED;
719 reg = vl_api_client_index_to_registration (mp->client_index);
723 app = application_get_if_valid (clib_net_to_host_u32 (mp->app_index));
726 rv = VNET_API_ERROR_INVALID_VALUE;
730 vnet_app_worker_add_del_args_t args = {
731 .app_index = app->app_index,
732 .wrk_map_index = clib_net_to_host_u32 (mp->wrk_index),
733 .api_client_index = mp->client_index,
736 rv = vnet_app_worker_add_del (&args);
739 clib_warning ("app worker add/del returned: %d", rv);
746 /* Send fifo segment fd if needed */
747 if (ssvm_type (args.segment) == SSVM_SEGMENT_MEMFD)
749 fd_flags |= SESSION_FD_F_MEMFD_SEGMENT;
750 fds[n_fds] = args.segment->fd;
753 if (application_segment_manager_properties (app)->use_mq_eventfd)
755 fd_flags |= SESSION_FD_F_MQ_EVENTFD;
756 fds[n_fds] = svm_msg_q_get_producer_eventfd (args.evt_q);
762 REPLY_MACRO2 (VL_API_APP_WORKER_ADD_DEL_REPLY, ({
763 rmp->is_add = mp->is_add;
764 rmp->wrk_index = clib_host_to_net_u32 (args.wrk_map_index);
765 rmp->segment_handle = clib_host_to_net_u64 (args.segment_handle);
766 if (!rv && mp->is_add)
768 rmp->app_event_queue_address =
769 fifo_segment_msg_q_offset ((fifo_segment_t *) args.segment, 0);
771 rmp->fd_flags = fd_flags;
772 if (vec_len (args.segment->name))
774 vl_api_vec_to_api_string (args.segment->name, &rmp->segment_name);
781 session_send_fds (reg, fds, n_fds);
785 vl_api_application_detach_t_handler (vl_api_application_detach_t * mp)
787 vl_api_application_detach_reply_t *rmp;
788 int rv = VNET_API_ERROR_INVALID_VALUE_2;
789 vnet_app_detach_args_t _a, *a = &_a;
792 if (!session_main_is_enabled () || appns_sapi_enabled ())
794 rv = VNET_API_ERROR_FEATURE_DISABLED;
798 app = application_lookup (mp->client_index);
801 a->app_index = app->app_index;
802 a->api_client_index = mp->client_index;
803 rv = vnet_application_detach (a);
807 REPLY_MACRO (VL_API_APPLICATION_DETACH_REPLY);
811 vl_api_app_namespace_add_del_t_handler (vl_api_app_namespace_add_del_t * mp)
813 vl_api_app_namespace_add_del_reply_t *rmp;
817 if (session_main_is_enabled () == 0)
819 rv = VNET_API_ERROR_FEATURE_DISABLED;
823 ns_id = vl_api_from_api_to_new_vec (mp, &mp->namespace_id);
825 vnet_app_namespace_add_del_args_t args = {
827 .secret = clib_net_to_host_u64 (mp->secret),
828 .sw_if_index = clib_net_to_host_u32 (mp->sw_if_index),
829 .ip4_fib_id = clib_net_to_host_u32 (mp->ip4_fib_id),
830 .ip6_fib_id = clib_net_to_host_u32 (mp->ip6_fib_id),
833 rv = vnet_app_namespace_add_del (&args);
836 appns_index = app_namespace_index_from_id (ns_id);
837 if (appns_index == APP_NAMESPACE_INVALID_INDEX)
839 clib_warning ("app ns lookup failed");
840 rv = VNET_API_ERROR_UNSPECIFIED;
847 REPLY_MACRO2 (VL_API_APP_NAMESPACE_ADD_DEL_REPLY, ({
849 rmp->appns_index = clib_host_to_net_u32 (appns_index);
855 vl_api_session_rule_add_del_t_handler (vl_api_session_rule_add_del_t * mp)
857 vl_api_session_rule_add_del_reply_t *rmp;
858 session_rule_add_del_args_t args;
859 session_rule_table_add_del_args_t *table_args = &args.table_args;
862 clib_memset (&args, 0, sizeof (args));
864 ip_prefix_decode (&mp->lcl, &table_args->lcl);
865 ip_prefix_decode (&mp->rmt, &table_args->rmt);
867 table_args->lcl_port = mp->lcl_port;
868 table_args->rmt_port = mp->rmt_port;
869 table_args->action_index = clib_net_to_host_u32 (mp->action_index);
870 table_args->is_add = mp->is_add;
871 mp->tag[sizeof (mp->tag) - 1] = 0;
872 table_args->tag = format (0, "%s", mp->tag);
873 args.appns_index = clib_net_to_host_u32 (mp->appns_index);
874 args.scope = mp->scope;
875 args.transport_proto =
876 api_session_transport_proto_decode (&mp->transport_proto) ==
877 TRANSPORT_PROTO_UDP ? 1 : 0;
879 rv = vnet_session_rule_add_del (&args);
881 clib_warning ("rule add del returned: %d", rv);
882 vec_free (table_args->tag);
883 REPLY_MACRO (VL_API_SESSION_RULE_ADD_DEL_REPLY);
887 send_session_rule_details4 (mma_rule_16_t * rule, u8 is_local,
888 u8 transport_proto, u32 appns_index, u8 * tag,
889 vl_api_registration_t * reg, u32 context)
891 vl_api_session_rules_details_t *rmp = 0;
892 session_mask_or_match_4_t *match =
893 (session_mask_or_match_4_t *) & rule->match;
894 session_mask_or_match_4_t *mask =
895 (session_mask_or_match_4_t *) & rule->mask;
896 fib_prefix_t lcl, rmt;
898 rmp = vl_msg_api_alloc (sizeof (*rmp));
899 clib_memset (rmp, 0, sizeof (*rmp));
900 rmp->_vl_msg_id = ntohs (VL_API_SESSION_RULES_DETAILS);
901 rmp->context = context;
903 clib_memset (&lcl, 0, sizeof (lcl));
904 clib_memset (&rmt, 0, sizeof (rmt));
905 ip_set (&lcl.fp_addr, &match->lcl_ip, 1);
906 ip_set (&rmt.fp_addr, &match->rmt_ip, 1);
907 lcl.fp_len = ip4_mask_to_preflen (&mask->lcl_ip);
908 rmt.fp_len = ip4_mask_to_preflen (&mask->rmt_ip);
910 ip_prefix_encode (&lcl, &rmp->lcl);
911 ip_prefix_encode (&rmt, &rmp->rmt);
912 rmp->lcl_port = match->lcl_port;
913 rmp->rmt_port = match->rmt_port;
914 rmp->action_index = clib_host_to_net_u32 (rule->action_index);
916 is_local ? SESSION_RULE_SCOPE_API_LOCAL : SESSION_RULE_SCOPE_API_GLOBAL;
917 rmp->transport_proto = api_session_transport_proto_encode (transport_proto);
918 rmp->appns_index = clib_host_to_net_u32 (appns_index);
921 clib_memcpy_fast (rmp->tag, tag, vec_len (tag));
922 rmp->tag[vec_len (tag)] = 0;
925 vl_api_send_msg (reg, (u8 *) rmp);
929 send_session_rule_details6 (mma_rule_40_t * rule, u8 is_local,
930 u8 transport_proto, u32 appns_index, u8 * tag,
931 vl_api_registration_t * reg, u32 context)
933 vl_api_session_rules_details_t *rmp = 0;
934 session_mask_or_match_6_t *match =
935 (session_mask_or_match_6_t *) & rule->match;
936 session_mask_or_match_6_t *mask =
937 (session_mask_or_match_6_t *) & rule->mask;
938 fib_prefix_t lcl, rmt;
940 rmp = vl_msg_api_alloc (sizeof (*rmp));
941 clib_memset (rmp, 0, sizeof (*rmp));
942 rmp->_vl_msg_id = ntohs (VL_API_SESSION_RULES_DETAILS);
943 rmp->context = context;
945 clib_memset (&lcl, 0, sizeof (lcl));
946 clib_memset (&rmt, 0, sizeof (rmt));
947 ip_set (&lcl.fp_addr, &match->lcl_ip, 0);
948 ip_set (&rmt.fp_addr, &match->rmt_ip, 0);
949 lcl.fp_len = ip6_mask_to_preflen (&mask->lcl_ip);
950 rmt.fp_len = ip6_mask_to_preflen (&mask->rmt_ip);
952 ip_prefix_encode (&lcl, &rmp->lcl);
953 ip_prefix_encode (&rmt, &rmp->rmt);
954 rmp->lcl_port = match->lcl_port;
955 rmp->rmt_port = match->rmt_port;
956 rmp->action_index = clib_host_to_net_u32 (rule->action_index);
958 is_local ? SESSION_RULE_SCOPE_API_LOCAL : SESSION_RULE_SCOPE_API_GLOBAL;
959 rmp->transport_proto = api_session_transport_proto_encode (transport_proto);
960 rmp->appns_index = clib_host_to_net_u32 (appns_index);
963 clib_memcpy_fast (rmp->tag, tag, vec_len (tag));
964 rmp->tag[vec_len (tag)] = 0;
967 vl_api_send_msg (reg, (u8 *) rmp);
971 send_session_rules_table_details (session_rules_table_t * srt, u8 fib_proto,
972 u8 tp, u8 is_local, u32 appns_index,
973 vl_api_registration_t * reg, u32 context)
975 mma_rule_16_t *rule16;
976 mma_rule_40_t *rule40;
977 mma_rules_table_16_t *srt16;
978 mma_rules_table_40_t *srt40;
981 if (is_local || fib_proto == FIB_PROTOCOL_IP4)
985 srt16 = &srt->session_rules_tables_16;
986 pool_foreach (rule16, srt16->rules) {
987 ri = mma_rules_table_rule_index_16 (srt16, rule16);
988 tag = session_rules_table_rule_tag (srt, ri, 1);
989 send_session_rule_details4 (rule16, is_local, tp, appns_index, tag,
994 if (is_local || fib_proto == FIB_PROTOCOL_IP6)
998 srt40 = &srt->session_rules_tables_40;
999 pool_foreach (rule40, srt40->rules) {
1000 ri = mma_rules_table_rule_index_40 (srt40, rule40);
1001 tag = session_rules_table_rule_tag (srt, ri, 1);
1002 send_session_rule_details6 (rule40, is_local, tp, appns_index, tag,
1010 vl_api_session_rules_dump_t_handler (vl_api_session_rules_dump_t * mp)
1012 vl_api_registration_t *reg;
1013 session_table_t *st;
1016 reg = vl_api_client_index_to_registration (mp->client_index);
1021 session_table_foreach (st, ({
1022 for (tp = 0; tp < TRANSPORT_N_PROTOS; tp++)
1024 send_session_rules_table_details (&st->session_rules[tp],
1025 st->active_fib_proto, tp,
1026 st->is_local, st->appns_index, reg,
1034 vl_api_app_add_cert_key_pair_t_handler (vl_api_app_add_cert_key_pair_t * mp)
1036 vl_api_app_add_cert_key_pair_reply_t *rmp;
1037 vnet_app_add_cert_key_pair_args_t _a, *a = &_a;
1038 u32 certkey_len, key_len, cert_len;
1040 if (session_main_is_enabled () == 0)
1042 rv = VNET_API_ERROR_FEATURE_DISABLED;
1046 cert_len = clib_net_to_host_u16 (mp->cert_len);
1047 if (cert_len > 10000)
1049 rv = VNET_API_ERROR_INVALID_VALUE;
1053 certkey_len = clib_net_to_host_u16 (mp->certkey_len);
1054 if (certkey_len < cert_len)
1056 rv = VNET_API_ERROR_INVALID_VALUE;
1060 key_len = certkey_len - cert_len;
1061 if (key_len > 10000)
1063 rv = VNET_API_ERROR_INVALID_VALUE;
1067 clib_memset (a, 0, sizeof (*a));
1068 vec_validate (a->cert, cert_len);
1069 vec_validate (a->key, key_len);
1070 clib_memcpy_fast (a->cert, mp->certkey, cert_len);
1071 clib_memcpy_fast (a->key, mp->certkey + cert_len, key_len);
1072 rv = vnet_app_add_cert_key_pair (a);
1078 REPLY_MACRO2 (VL_API_APP_ADD_CERT_KEY_PAIR_REPLY, ({
1080 rmp->index = clib_host_to_net_u32 (a->index);
1086 vl_api_app_del_cert_key_pair_t_handler (vl_api_app_del_cert_key_pair_t * mp)
1088 vl_api_app_del_cert_key_pair_reply_t *rmp;
1091 if (session_main_is_enabled () == 0)
1093 rv = VNET_API_ERROR_FEATURE_DISABLED;
1096 ckpair_index = clib_net_to_host_u32 (mp->index);
1097 rv = vnet_app_del_cert_key_pair (ckpair_index);
1100 REPLY_MACRO (VL_API_APP_DEL_CERT_KEY_PAIR_REPLY);
1103 /* ### WILL BE DEPRECATED POST 20.01 ### */
1105 vl_api_application_tls_cert_add_t_handler (vl_api_application_tls_cert_add_t *
1108 vl_api_application_tls_cert_add_reply_t *rmp;
1109 app_cert_key_pair_t *ckpair;
1113 if (session_main_is_enabled () == 0)
1115 rv = VNET_API_ERROR_FEATURE_DISABLED;
1118 if (!(app = application_lookup (mp->client_index)))
1120 rv = VNET_API_ERROR_APPLICATION_NOT_ATTACHED;
1123 cert_len = clib_net_to_host_u16 (mp->cert_len);
1124 if (cert_len > 10000)
1126 rv = VNET_API_ERROR_INVALID_VALUE;
1129 ckpair = app_cert_key_pair_get_default ();
1130 vec_validate (ckpair->cert, cert_len);
1131 clib_memcpy_fast (ckpair->cert, mp->cert, cert_len);
1134 REPLY_MACRO (VL_API_APPLICATION_TLS_CERT_ADD_REPLY);
1137 /* ### WILL BE DEPRECATED POST 20.01 ### */
1139 vl_api_application_tls_key_add_t_handler (vl_api_application_tls_key_add_t *
1142 vl_api_application_tls_key_add_reply_t *rmp;
1143 app_cert_key_pair_t *ckpair;
1147 if (session_main_is_enabled () == 0)
1149 rv = VNET_API_ERROR_FEATURE_DISABLED;
1152 if (!(app = application_lookup (mp->client_index)))
1154 rv = VNET_API_ERROR_APPLICATION_NOT_ATTACHED;
1157 key_len = clib_net_to_host_u16 (mp->key_len);
1158 if (key_len > 10000)
1160 rv = VNET_API_ERROR_INVALID_VALUE;
1163 ckpair = app_cert_key_pair_get_default ();
1164 vec_validate (ckpair->key, key_len);
1165 clib_memcpy_fast (ckpair->key, mp->key, key_len);
1167 REPLY_MACRO (VL_API_APPLICATION_TLS_KEY_ADD_REPLY);
1170 static clib_error_t *
1171 application_reaper_cb (u32 client_index)
1173 application_t *app = application_lookup (client_index);
1174 vnet_app_detach_args_t _a, *a = &_a;
1177 a->app_index = app->app_index;
1178 a->api_client_index = client_index;
1179 vnet_application_detach (a);
1184 VL_MSG_API_REAPER_FUNCTION (application_reaper_cb);
1186 #define vl_msg_name_crc_list
1187 #include <vnet/vnet_all_api_h.h>
1188 #undef vl_msg_name_crc_list
1191 setup_message_id_table (api_main_t * am)
1193 #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
1194 foreach_vl_msg_name_crc_session;
1199 * session_api_hookup
1200 * Add uri's API message handlers to the table.
1201 * vlib has already mapped shared memory and
1202 * added the client registration handlers.
1203 * See .../open-repo/vlib/memclnt_vlib.c:memclnt_process()
1205 static clib_error_t *
1206 session_api_hookup (vlib_main_t * vm)
1208 api_main_t *am = vlibapi_get_main ();
1211 vl_msg_api_set_handlers(VL_API_##N, #n, \
1212 vl_api_##n##_t_handler, \
1214 vl_api_##n##_t_endian, \
1215 vl_api_##n##_t_print, \
1216 sizeof(vl_api_##n##_t), 1);
1217 foreach_session_api_msg;
1221 * Set up the (msg_name, crc, message-id) table
1223 setup_message_id_table (am);
1228 VLIB_API_INIT_FUNCTION (session_api_hookup);
1231 * Socket api functions
1235 sapi_send_fds (app_worker_t * app_wrk, int *fds, int n_fds)
1237 app_sapi_msg_t smsg = { 0 };
1238 app_namespace_t *app_ns;
1243 app = application_get (app_wrk->app_index);
1244 app_ns = app_namespace_get (app->ns_index);
1245 cs_index = appns_sapi_handle_sock_index (app_wrk->api_client_index);
1246 cs = appns_sapi_get_socket (app_ns, cs_index);
1247 if (PREDICT_FALSE (!cs))
1250 /* There's no payload for the message only the type */
1251 smsg.type = APP_SAPI_MSG_TYPE_SEND_FDS;
1252 clib_socket_sendmsg (cs, &smsg, sizeof (smsg), fds, n_fds);
1256 mq_send_add_segment_sapi_cb (u32 app_wrk_index, u64 segment_handle)
1258 int fds[SESSION_N_FD_TYPE], n_fds = 0;
1259 svm_msg_q_msg_t _msg, *msg = &_msg;
1260 session_app_add_segment_msg_t *mp;
1261 app_worker_t *app_wrk;
1262 session_event_t *evt;
1263 svm_msg_q_t *app_mq;
1268 app_wrk = app_worker_get (app_wrk_index);
1270 fs = segment_manager_get_segment_w_handle (segment_handle);
1272 ASSERT (ssvm_type (sp) == SSVM_SEGMENT_MEMFD);
1274 fd_flags |= SESSION_FD_F_MEMFD_SEGMENT;
1275 fds[n_fds] = sp->fd;
1278 app_mq = app_wrk->event_queue;
1279 if (mq_try_lock_and_alloc_msg (app_mq, msg))
1283 * Send the fd over api socket
1285 sapi_send_fds (app_wrk, fds, n_fds);
1288 * Send the actual message over mq
1290 evt = svm_msg_q_msg_data (app_mq, msg);
1291 clib_memset (evt, 0, sizeof (*evt));
1292 evt->event_type = SESSION_CTRL_EVT_APP_ADD_SEGMENT;
1293 mp = (session_app_add_segment_msg_t *) evt->data;
1294 clib_memset (mp, 0, sizeof (*mp));
1295 mp->segment_size = sp->ssvm_size;
1296 mp->fd_flags = fd_flags;
1297 mp->segment_handle = segment_handle;
1298 strncpy ((char *) mp->segment_name, (char *) sp->name,
1299 sizeof (mp->segment_name) - 1);
1301 svm_msg_q_add_and_unlock (app_mq, msg);
1307 mq_send_del_segment_sapi_cb (u32 app_wrk_index, u64 segment_handle)
1309 svm_msg_q_msg_t _msg, *msg = &_msg;
1310 session_app_del_segment_msg_t *mp;
1311 app_worker_t *app_wrk;
1312 session_event_t *evt;
1313 svm_msg_q_t *app_mq;
1315 app_wrk = app_worker_get (app_wrk_index);
1317 app_mq = app_wrk->event_queue;
1318 if (mq_try_lock_and_alloc_msg (app_mq, msg))
1321 evt = svm_msg_q_msg_data (app_mq, msg);
1322 clib_memset (evt, 0, sizeof (*evt));
1323 evt->event_type = SESSION_CTRL_EVT_APP_DEL_SEGMENT;
1324 mp = (session_app_del_segment_msg_t *) evt->data;
1325 clib_memset (mp, 0, sizeof (*mp));
1326 mp->segment_handle = segment_handle;
1327 svm_msg_q_add_and_unlock (app_mq, msg);
1332 static session_cb_vft_t session_mq_sapi_cb_vft = {
1333 .session_accept_callback = mq_send_session_accepted_cb,
1334 .session_disconnect_callback = mq_send_session_disconnected_cb,
1335 .session_connected_callback = mq_send_session_connected_cb,
1336 .session_reset_callback = mq_send_session_reset_cb,
1337 .session_migrate_callback = mq_send_session_migrate_cb,
1338 .session_cleanup_callback = mq_send_session_cleanup_cb,
1339 .add_segment_callback = mq_send_add_segment_sapi_cb,
1340 .del_segment_callback = mq_send_del_segment_sapi_cb,
1344 session_api_attach_handler (app_namespace_t * app_ns, clib_socket_t * cs,
1345 app_sapi_attach_msg_t * mp)
1347 int rv = 0, fds[SESSION_N_FD_TYPE], n_fds = 0;
1348 vnet_app_attach_args_t _a, *a = &_a;
1349 app_sapi_attach_reply_msg_t *rmp;
1350 fifo_segment_t *evt_q_segment;
1351 u8 fd_flags = 0, ctrl_thread;
1352 app_ns_api_handle_t *handle;
1353 app_sapi_msg_t msg = { 0 };
1354 app_worker_t *app_wrk;
1357 /* Make sure name is null terminated */
1360 clib_memset (a, 0, sizeof (*a));
1361 a->api_client_index = appns_sapi_socket_handle (app_ns, cs);
1362 a->name = format (0, "%s", (char *) mp->name);
1363 a->options = mp->options;
1364 a->session_cb_vft = &session_mq_sapi_cb_vft;
1365 a->use_sock_api = 1;
1366 a->options[APP_OPTIONS_NAMESPACE] = app_namespace_index (app_ns);
1368 if ((rv = vnet_application_attach (a)))
1370 clib_warning ("attach returned: %d", rv);
1374 /* Send event queues segment */
1375 if ((evt_q_segment = session_main_get_evt_q_segment ()))
1377 fd_flags |= SESSION_FD_F_VPP_MQ_SEGMENT;
1378 fds[n_fds] = evt_q_segment->ssvm.fd;
1381 /* Send fifo segment fd if needed */
1382 if (ssvm_type (a->segment) == SSVM_SEGMENT_MEMFD)
1384 fd_flags |= SESSION_FD_F_MEMFD_SEGMENT;
1385 fds[n_fds] = a->segment->fd;
1388 if (a->options[APP_OPTIONS_FLAGS] & APP_OPTIONS_FLAGS_EVT_MQ_USE_EVENTFD)
1390 fd_flags |= SESSION_FD_F_MQ_EVENTFD;
1391 fds[n_fds] = svm_msg_q_get_producer_eventfd (a->app_evt_q);
1397 msg.type = APP_SAPI_MSG_TYPE_ATTACH_REPLY;
1398 rmp = &msg.attach_reply;
1402 ctrl_thread = vlib_num_workers ()? 1 : 0;
1403 rmp->app_index = a->app_index;
1405 fifo_segment_msg_q_offset ((fifo_segment_t *) a->segment, 0);
1407 fifo_segment_msg_q_offset (evt_q_segment, ctrl_thread);
1408 rmp->vpp_ctrl_mq_thread = ctrl_thread;
1410 rmp->fd_flags = fd_flags;
1411 /* No segment name and size since we only support memfds
1412 * in this configuration */
1413 rmp->segment_handle = a->segment_handle;
1414 rmp->api_client_handle = a->api_client_index;
1416 /* Update app index for socket */
1417 handle = (app_ns_api_handle_t *) & cs->private_data;
1418 app = application_get (a->app_index);
1419 app_wrk = application_get_worker (app, 0);
1420 handle->aah_app_wrk_index = app_wrk->wrk_index;
1423 clib_socket_sendmsg (cs, &msg, sizeof (msg), fds, n_fds);
1428 sapi_socket_close_w_handle (u32 api_handle)
1430 app_namespace_t *app_ns = app_namespace_get (api_handle >> 16);
1431 u16 sock_index = api_handle & 0xffff;
1432 app_ns_api_handle_t *handle;
1436 cs = appns_sapi_get_socket (app_ns, sock_index);
1440 handle = (app_ns_api_handle_t *) & cs->private_data;
1441 cf = clib_file_get (&file_main, handle->aah_file_index);
1442 clib_file_del (&file_main, cf);
1444 clib_socket_close (cs);
1445 appns_sapi_free_socket (app_ns, cs);
1449 sapi_add_del_worker_handler (app_namespace_t * app_ns,
1451 app_sapi_worker_add_del_msg_t * mp)
1453 int rv = 0, fds[SESSION_N_FD_TYPE], n_fds = 0;
1454 app_sapi_worker_add_del_reply_msg_t *rmp;
1455 app_ns_api_handle_t *handle;
1456 app_sapi_msg_t msg = { 0 };
1457 app_worker_t *app_wrk;
1458 u32 sapi_handle = -1;
1462 app = application_get_if_valid (mp->app_index);
1465 rv = VNET_API_ERROR_INVALID_VALUE;
1469 sapi_handle = appns_sapi_socket_handle (app_ns, cs);
1471 vnet_app_worker_add_del_args_t args = {
1472 .app_index = app->app_index,
1473 .wrk_map_index = mp->wrk_index,
1474 .api_client_index = sapi_handle,
1475 .is_add = mp->is_add
1477 rv = vnet_app_worker_add_del (&args);
1480 clib_warning ("app worker add/del returned: %d", rv);
1486 sapi_socket_close_w_handle (sapi_handle);
1490 /* Send fifo segment fd if needed */
1491 if (ssvm_type (args.segment) == SSVM_SEGMENT_MEMFD)
1493 fd_flags |= SESSION_FD_F_MEMFD_SEGMENT;
1494 fds[n_fds] = args.segment->fd;
1497 if (application_segment_manager_properties (app)->use_mq_eventfd)
1499 fd_flags |= SESSION_FD_F_MQ_EVENTFD;
1500 fds[n_fds] = svm_msg_q_get_producer_eventfd (args.evt_q);
1506 msg.type = APP_SAPI_MSG_TYPE_ADD_DEL_WORKER_REPLY;
1507 rmp = &msg.worker_add_del_reply;
1509 rmp->is_add = mp->is_add;
1510 rmp->api_client_handle = sapi_handle;
1511 rmp->wrk_index = args.wrk_map_index;
1512 rmp->segment_handle = args.segment_handle;
1513 if (!rv && mp->is_add)
1515 /* No segment name and size. This supports only memfds */
1516 rmp->app_event_queue_address =
1517 fifo_segment_msg_q_offset ((fifo_segment_t *) args.segment, 0);
1519 rmp->fd_flags = fd_flags;
1521 /* Update app index for socket */
1522 handle = (app_ns_api_handle_t *) & cs->private_data;
1523 app_wrk = application_get_worker (app, args.wrk_map_index);
1524 handle->aah_app_wrk_index = app_wrk->wrk_index;
1527 clib_socket_sendmsg (cs, &msg, sizeof (msg), fds, n_fds);
1531 sapi_socket_detach (app_namespace_t * app_ns, clib_socket_t * cs)
1533 app_ns_api_handle_t *handle;
1534 app_worker_t *app_wrk;
1535 u32 api_client_handle;
1537 api_client_handle = appns_sapi_socket_handle (app_ns, cs);
1538 sapi_socket_close_w_handle (api_client_handle);
1540 /* Cleanup everything because app worker closed socket or crashed */
1541 handle = (app_ns_api_handle_t *) & cs->private_data;
1542 app_wrk = app_worker_get (handle->aah_app_wrk_index);
1544 vnet_app_worker_add_del_args_t args = {
1545 .app_index = app_wrk->app_index,
1546 .wrk_map_index = app_wrk->wrk_map_index,
1547 .api_client_index = api_client_handle,
1550 /* Send rpc to main thread for worker barrier */
1551 vlib_rpc_call_main_thread (vnet_app_worker_add_del, (u8 *) & args,
1555 static clib_error_t *
1556 sapi_sock_read_ready (clib_file_t * cf)
1558 app_ns_api_handle_t *handle = (app_ns_api_handle_t *) & cf->private_data;
1559 vlib_main_t *vm = vlib_get_main ();
1560 app_sapi_msg_t msg = { 0 };
1561 app_namespace_t *app_ns;
1562 clib_error_t *err = 0;
1565 app_ns = app_namespace_get (handle->aah_app_ns_index);
1566 cs = appns_sapi_get_socket (app_ns, handle->aah_sock_index);
1570 err = clib_socket_recvmsg (cs, &msg, sizeof (msg), 0, 0);
1573 clib_error_free (err);
1574 sapi_socket_detach (app_ns, cs);
1578 handle = (app_ns_api_handle_t *) & cs->private_data;
1580 vlib_worker_thread_barrier_sync (vm);
1584 case APP_SAPI_MSG_TYPE_ATTACH:
1585 session_api_attach_handler (app_ns, cs, &msg.attach);
1587 case APP_SAPI_MSG_TYPE_ADD_DEL_WORKER:
1588 sapi_add_del_worker_handler (app_ns, cs, &msg.worker_add_del);
1591 clib_warning ("app wrk %u unknown message type: %u",
1592 handle->aah_app_wrk_index, msg.type);
1596 vlib_worker_thread_barrier_release (vm);
1602 static clib_error_t *
1603 sapi_sock_write_ready (clib_file_t * cf)
1605 app_ns_api_handle_t *handle = (app_ns_api_handle_t *) & cf->private_data;
1606 clib_warning ("called for app ns %u", handle->aah_app_ns_index);
1610 static clib_error_t *
1611 sapi_sock_error (clib_file_t * cf)
1613 app_ns_api_handle_t *handle = (app_ns_api_handle_t *) & cf->private_data;
1614 app_namespace_t *app_ns;
1617 app_ns = app_namespace_get (handle->aah_app_ns_index);
1618 cs = appns_sapi_get_socket (app_ns, handle->aah_sock_index);
1622 sapi_socket_detach (app_ns, cs);
1626 static clib_error_t *
1627 sapi_sock_accept_ready (clib_file_t * scf)
1629 app_ns_api_handle_t handle = *(app_ns_api_handle_t *) & scf->private_data;
1630 app_namespace_t *app_ns;
1631 clib_file_t cf = { 0 };
1632 clib_error_t *err = 0;
1633 clib_socket_t *ccs, *scs;
1635 /* Listener files point to namespace */
1636 app_ns = app_namespace_get (handle.aah_app_ns_index);
1639 * Initialize client socket
1641 ccs = appns_sapi_alloc_socket (app_ns);
1643 /* Grab server socket after client is initialized */
1644 scs = appns_sapi_get_socket (app_ns, handle.aah_sock_index);
1648 err = clib_socket_accept (scs, ccs);
1651 clib_error_report (err);
1655 cf.read_function = sapi_sock_read_ready;
1656 cf.write_function = sapi_sock_write_ready;
1657 cf.error_function = sapi_sock_error;
1658 cf.file_descriptor = ccs->fd;
1659 /* File points to app namespace and socket */
1660 handle.aah_sock_index = appns_sapi_socket_index (app_ns, ccs);
1661 cf.private_data = handle.as_u64;
1662 cf.description = format (0, "app sock conn fd: %d", ccs->fd);
1664 /* Poll until we get an attach message. Socket points to file and
1665 * application that owns the socket */
1666 handle.aah_app_wrk_index = APP_INVALID_INDEX;
1667 handle.aah_file_index = clib_file_add (&file_main, &cf);
1668 ccs->private_data = handle.as_u64;
1673 appns_sapi_free_socket (app_ns, ccs);
1678 appns_sapi_add_ns_socket (app_namespace_t * app_ns)
1680 char *subdir = "/app_ns_sockets/";
1681 app_ns_api_handle_t *handle;
1682 clib_file_t cf = { 0 };
1683 struct stat file_stat;
1689 vec_add (dir, vlib_unix_get_runtime_dir (),
1690 strlen (vlib_unix_get_runtime_dir ()));
1691 vec_add (dir, (u8 *) subdir, strlen (subdir));
1693 err = vlib_unix_recursive_mkdir ((char *) dir);
1696 clib_error_report (err);
1701 app_ns->sock_name = format (0, "%v%v%c", dir, app_ns->ns_id, 0);
1704 * Create and initialize socket to listen on
1706 cs = appns_sapi_alloc_socket (app_ns);
1707 cs->config = (char *) app_ns->sock_name;
1708 cs->flags = CLIB_SOCKET_F_IS_SERVER |
1709 CLIB_SOCKET_F_ALLOW_GROUP_WRITE |
1710 CLIB_SOCKET_F_SEQPACKET | CLIB_SOCKET_F_PASSCRED;
1712 if ((err = clib_socket_init (cs)))
1714 clib_error_report (err);
1719 if (stat ((char *) app_ns->sock_name, &file_stat) == -1)
1728 cf.read_function = sapi_sock_accept_ready;
1729 cf.file_descriptor = cs->fd;
1730 /* File points to namespace */
1731 handle = (app_ns_api_handle_t *) & cf.private_data;
1732 handle->aah_app_ns_index = app_namespace_index (app_ns);
1733 handle->aah_sock_index = appns_sapi_socket_index (app_ns, cs);
1734 cf.description = format (0, "app sock listener: %s", app_ns->sock_name);
1736 /* Socket points to clib file index */
1737 handle = (app_ns_api_handle_t *) & cs->private_data;
1738 handle->aah_file_index = clib_file_add (&file_main, &cf);
1739 handle->aah_app_wrk_index = APP_INVALID_INDEX;
1747 * fd.io coding-style-patch-verification: ON
1750 * eval: (c-set-style "gnu")