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;
133 svm_msg_q_t *vpp_queue, *app_mq;
135 session_accepted_msg_t *mp;
136 session_event_t *evt;
139 app = application_get (app_wrk->app_index);
140 app_mq = app_wrk->event_queue;
141 if (mq_try_lock_and_alloc_msg (app_mq, msg))
142 return SESSION_E_MQ_MSG_ALLOC;
144 evt = svm_msg_q_msg_data (app_mq, msg);
145 clib_memset (evt, 0, sizeof (*evt));
146 evt->event_type = SESSION_CTRL_EVT_ACCEPTED;
147 mp = (session_accepted_msg_t *) evt->data;
148 clib_memset (mp, 0, sizeof (*mp));
149 mp->context = app->app_index;
150 mp->server_rx_fifo = pointer_to_uword (s->rx_fifo->shr);
151 mp->server_tx_fifo = pointer_to_uword (s->tx_fifo->shr);
152 mp->segment_handle = session_segment_handle (s);
153 mp->flags = s->flags;
155 if (session_has_transport (s))
157 listener = listen_session_get_from_handle (s->listener_handle);
158 mp->listener_handle = app_listen_session_handle (listener);
159 if (application_is_proxy (app))
162 app_worker_first_listener (app_wrk, session_get_fib_proto (s),
163 session_get_transport_proto (s));
165 mp->listener_handle = listen_session_get_handle (listener);
167 vpp_queue = session_main_get_vpp_event_queue (s->thread_index);
168 mp->vpp_event_queue_address = pointer_to_uword (vpp_queue);
169 mp->handle = session_handle (s);
171 session_get_endpoint (s, &mp->rmt, 0 /* is_lcl */ );
177 ct = (ct_connection_t *) session_get_transport (s);
178 listener = listen_session_get_from_handle (s->listener_handle);
179 mp->listener_handle = app_listen_session_handle (listener);
180 mp->rmt.is_ip4 = session_type_is_ip4 (listener->session_type);
181 mp->rmt.port = ct->c_rmt_port;
182 mp->handle = session_handle (s);
183 vpp_queue = session_main_get_vpp_event_queue (s->thread_index);
184 mp->vpp_event_queue_address = pointer_to_uword (vpp_queue);
186 svm_msg_q_add_and_unlock (app_mq, msg);
192 mq_send_session_close_evt (app_worker_t * app_wrk, session_handle_t sh,
193 session_evt_type_t evt_type)
195 svm_msg_q_msg_t _msg, *msg = &_msg;
196 session_disconnected_msg_t *mp;
198 session_event_t *evt;
200 app_mq = app_wrk->event_queue;
201 if (mq_try_lock_and_alloc_msg (app_mq, msg))
203 evt = svm_msg_q_msg_data (app_mq, msg);
204 clib_memset (evt, 0, sizeof (*evt));
205 evt->event_type = evt_type;
206 mp = (session_disconnected_msg_t *) evt->data;
208 mp->context = app_wrk->api_client_index;
209 svm_msg_q_add_and_unlock (app_mq, msg);
213 mq_notify_close_subscribers (u32 app_index, session_handle_t sh,
214 svm_fifo_t * f, session_evt_type_t evt_type)
216 app_worker_t *app_wrk;
220 app = application_get (app_index);
224 for (i = 0; i < f->shr->n_subscribers; i++)
226 if (!(app_wrk = application_get_worker (app, f->shr->subscribers[i])))
228 mq_send_session_close_evt (app_wrk, sh, SESSION_CTRL_EVT_DISCONNECTED);
233 mq_send_session_disconnected_cb (session_t * s)
235 app_worker_t *app_wrk = app_worker_get (s->app_wrk_index);
236 session_handle_t sh = session_handle (s);
238 mq_send_session_close_evt (app_wrk, session_handle (s),
239 SESSION_CTRL_EVT_DISCONNECTED);
241 if (svm_fifo_n_subscribers (s->rx_fifo))
242 mq_notify_close_subscribers (app_wrk->app_index, sh, s->rx_fifo,
243 SESSION_CTRL_EVT_DISCONNECTED);
247 mq_send_session_reset_cb (session_t * s)
249 app_worker_t *app_wrk = app_worker_get (s->app_wrk_index);
250 session_handle_t sh = session_handle (s);
252 mq_send_session_close_evt (app_wrk, sh, SESSION_CTRL_EVT_RESET);
254 if (svm_fifo_n_subscribers (s->rx_fifo))
255 mq_notify_close_subscribers (app_wrk->app_index, sh, s->rx_fifo,
256 SESSION_CTRL_EVT_RESET);
260 mq_send_session_connected_cb (u32 app_wrk_index, u32 api_context,
261 session_t * s, session_error_t err)
263 svm_msg_q_msg_t _msg, *msg = &_msg;
264 session_connected_msg_t *mp;
265 svm_msg_q_t *vpp_mq, *app_mq;
266 transport_connection_t *tc;
267 app_worker_t *app_wrk;
268 session_event_t *evt;
270 app_wrk = app_worker_get (app_wrk_index);
271 app_mq = app_wrk->event_queue;
274 clib_warning ("app %u with api index: %u not attached",
275 app_wrk->app_index, app_wrk->api_client_index);
279 if (mq_try_lock_and_alloc_msg (app_mq, msg))
280 return SESSION_E_MQ_MSG_ALLOC;
282 evt = svm_msg_q_msg_data (app_mq, msg);
283 clib_memset (evt, 0, sizeof (*evt));
284 evt->event_type = SESSION_CTRL_EVT_CONNECTED;
285 mp = (session_connected_msg_t *) evt->data;
286 clib_memset (mp, 0, sizeof (*mp));
287 mp->context = api_context;
292 if (session_has_transport (s))
294 tc = session_get_transport (s);
297 clib_warning ("failed to retrieve transport!");
298 err = SESSION_E_REFUSED;
302 vpp_mq = session_main_get_vpp_event_queue (s->thread_index);
303 mp->handle = session_handle (s);
304 mp->vpp_event_queue_address = pointer_to_uword (vpp_mq);
306 session_get_endpoint (s, &mp->lcl, 1 /* is_lcl */ );
308 mp->server_rx_fifo = pointer_to_uword (s->rx_fifo->shr);
309 mp->server_tx_fifo = pointer_to_uword (s->tx_fifo->shr);
310 mp->segment_handle = session_segment_handle (s);
314 ct_connection_t *cct;
317 cct = (ct_connection_t *) session_get_transport (s);
318 mp->handle = session_handle (s);
319 mp->lcl.port = cct->c_lcl_port;
320 mp->lcl.is_ip4 = cct->c_is_ip4;
321 vpp_mq = session_main_get_vpp_event_queue (s->thread_index);
322 mp->vpp_event_queue_address = pointer_to_uword (vpp_mq);
323 mp->server_rx_fifo = pointer_to_uword (s->rx_fifo->shr);
324 mp->server_tx_fifo = pointer_to_uword (s->tx_fifo->shr);
325 mp->segment_handle = session_segment_handle (s);
326 ss = ct_session_get_peer (s);
327 mp->ct_rx_fifo = pointer_to_uword (ss->tx_fifo->shr);
328 mp->ct_tx_fifo = pointer_to_uword (ss->rx_fifo->shr);
329 mp->ct_segment_handle = session_segment_handle (ss);
335 svm_msg_q_add_and_unlock (app_mq, msg);
340 mq_send_session_bound_cb (u32 app_wrk_index, u32 api_context,
341 session_handle_t handle, int rv)
343 svm_msg_q_msg_t _msg, *msg = &_msg;
344 svm_msg_q_t *app_mq, *vpp_evt_q;
345 transport_endpoint_t tep;
346 session_bound_msg_t *mp;
347 app_worker_t *app_wrk;
348 session_event_t *evt;
351 app_wrk = app_worker_get (app_wrk_index);
352 app_mq = app_wrk->event_queue;
355 clib_warning ("app %u with api index: %u not attached",
356 app_wrk->app_index, app_wrk->api_client_index);
360 if (mq_try_lock_and_alloc_msg (app_mq, msg))
361 return SESSION_E_MQ_MSG_ALLOC;
363 evt = svm_msg_q_msg_data (app_mq, msg);
364 clib_memset (evt, 0, sizeof (*evt));
365 evt->event_type = SESSION_CTRL_EVT_BOUND;
366 mp = (session_bound_msg_t *) evt->data;
367 mp->context = api_context;
373 al = app_listener_get_w_handle (handle);
374 if (al->session_index != SESSION_INVALID_INDEX)
375 ls = app_listener_get_session (al);
377 ls = app_listener_get_local_session (al);
379 session_get_endpoint (ls, &tep, 1 /* is_lcl */ );
380 mp->lcl_port = tep.port;
381 mp->lcl_is_ip4 = tep.is_ip4;
382 clib_memcpy_fast (mp->lcl_ip, &tep.ip, sizeof (tep.ip));
384 vpp_evt_q = session_main_get_vpp_event_queue (0);
385 mp->vpp_evt_q = pointer_to_uword (vpp_evt_q);
387 if (session_transport_service_type (ls) == TRANSPORT_SERVICE_CL)
389 mp->rx_fifo = pointer_to_uword (ls->rx_fifo->shr);
390 mp->tx_fifo = pointer_to_uword (ls->tx_fifo->shr);
391 mp->segment_handle = session_segment_handle (ls);
396 svm_msg_q_add_and_unlock (app_mq, msg);
401 mq_send_unlisten_reply (app_worker_t * app_wrk, session_handle_t sh,
404 svm_msg_q_msg_t _msg, *msg = &_msg;
405 session_unlisten_reply_msg_t *ump;
407 session_event_t *evt;
409 app_mq = app_wrk->event_queue;
410 if (mq_try_lock_and_alloc_msg (app_mq, msg))
413 evt = svm_msg_q_msg_data (app_mq, msg);
414 clib_memset (evt, 0, sizeof (*evt));
415 evt->event_type = SESSION_CTRL_EVT_UNLISTEN_REPLY;
416 ump = (session_unlisten_reply_msg_t *) evt->data;
417 ump->context = context;
420 svm_msg_q_add_and_unlock (app_mq, msg);
424 mq_send_session_migrate_cb (session_t * s, session_handle_t new_sh)
426 svm_msg_q_msg_t _msg, *msg = &_msg;
427 session_migrated_msg_t *mp;
428 svm_msg_q_t *vpp_evt_q;
429 app_worker_t *app_wrk;
430 session_event_t *evt;
433 app_wrk = app_worker_get (s->app_wrk_index);
434 app_mq = app_wrk->event_queue;
435 if (mq_try_lock_and_alloc_msg (app_mq, msg))
438 evt = svm_msg_q_msg_data (app_mq, msg);
439 clib_memset (evt, 0, sizeof (*evt));
440 evt->event_type = SESSION_CTRL_EVT_MIGRATED;
441 mp = (session_migrated_msg_t *) evt->data;
442 mp->handle = session_handle (s);
443 mp->new_handle = new_sh;
444 mp->vpp_thread_index = session_thread_from_handle (new_sh);
445 vpp_evt_q = session_main_get_vpp_event_queue (mp->vpp_thread_index);
446 mp->vpp_evt_q = pointer_to_uword (vpp_evt_q);
447 mp->segment_handle = session_segment_handle (s);
448 svm_msg_q_add_and_unlock (app_mq, msg);
452 mq_send_add_segment_cb (u32 app_wrk_index, u64 segment_handle)
454 int fds[SESSION_N_FD_TYPE], n_fds = 0;
455 svm_msg_q_msg_t _msg, *msg = &_msg;
456 session_app_add_segment_msg_t *mp;
457 vl_api_registration_t *reg;
458 app_worker_t *app_wrk;
459 session_event_t *evt;
465 app_wrk = app_worker_get (app_wrk_index);
467 reg = vl_mem_api_client_index_to_registration (app_wrk->api_client_index);
470 clib_warning ("no api registration for client: %u",
471 app_wrk->api_client_index);
475 fs = segment_manager_get_segment_w_handle (segment_handle);
477 if (ssvm_type (sp) == SSVM_SEGMENT_MEMFD)
479 if (vl_api_registration_file_index (reg) == VL_API_INVALID_FI)
481 clib_warning ("can't send memfd fd");
485 fd_flags |= SESSION_FD_F_MEMFD_SEGMENT;
490 app_mq = app_wrk->event_queue;
491 if (mq_try_lock_and_alloc_msg (app_mq, msg))
495 session_send_fds (reg, fds, n_fds);
497 evt = svm_msg_q_msg_data (app_mq, msg);
498 clib_memset (evt, 0, sizeof (*evt));
499 evt->event_type = SESSION_CTRL_EVT_APP_ADD_SEGMENT;
500 mp = (session_app_add_segment_msg_t *) evt->data;
501 clib_memset (mp, 0, sizeof (*mp));
502 mp->segment_size = sp->ssvm_size;
503 mp->fd_flags = fd_flags;
504 mp->segment_handle = segment_handle;
505 strncpy ((char *) mp->segment_name, (char *) sp->name,
506 sizeof (mp->segment_name) - 1);
508 svm_msg_q_add_and_unlock (app_mq, msg);
514 mq_send_del_segment_cb (u32 app_wrk_index, u64 segment_handle)
516 svm_msg_q_msg_t _msg, *msg = &_msg;
517 session_app_del_segment_msg_t *mp;
518 vl_api_registration_t *reg;
519 app_worker_t *app_wrk;
520 session_event_t *evt;
523 app_wrk = app_worker_get (app_wrk_index);
524 reg = vl_mem_api_client_index_to_registration (app_wrk->api_client_index);
527 clib_warning ("no registration: %u", app_wrk->api_client_index);
531 app_mq = app_wrk->event_queue;
532 if (mq_try_lock_and_alloc_msg (app_mq, msg))
535 evt = svm_msg_q_msg_data (app_mq, msg);
536 clib_memset (evt, 0, sizeof (*evt));
537 evt->event_type = SESSION_CTRL_EVT_APP_DEL_SEGMENT;
538 mp = (session_app_del_segment_msg_t *) evt->data;
539 clib_memset (mp, 0, sizeof (*mp));
540 mp->segment_handle = segment_handle;
541 svm_msg_q_add_and_unlock (app_mq, msg);
547 mq_send_session_cleanup_cb (session_t * s, session_cleanup_ntf_t ntf)
549 svm_msg_q_msg_t _msg, *msg = &_msg;
550 session_cleanup_msg_t *mp;
552 session_event_t *evt;
553 app_worker_t *app_wrk;
555 /* Propagate transport cleanup notifications only if app didn't close */
556 if (ntf == SESSION_CLEANUP_TRANSPORT
557 && s->session_state != SESSION_STATE_TRANSPORT_DELETED)
560 app_wrk = app_worker_get_if_valid (s->app_wrk_index);
564 app_mq = app_wrk->event_queue;
565 if (mq_try_lock_and_alloc_msg (app_mq, msg))
568 evt = svm_msg_q_msg_data (app_mq, msg);
569 clib_memset (evt, 0, sizeof (*evt));
570 evt->event_type = SESSION_CTRL_EVT_CLEANUP;
571 mp = (session_cleanup_msg_t *) evt->data;
572 mp->handle = session_handle (s);
574 svm_msg_q_add_and_unlock (app_mq, msg);
577 static session_cb_vft_t session_mq_cb_vft = {
578 .session_accept_callback = mq_send_session_accepted_cb,
579 .session_disconnect_callback = mq_send_session_disconnected_cb,
580 .session_connected_callback = mq_send_session_connected_cb,
581 .session_reset_callback = mq_send_session_reset_cb,
582 .session_migrate_callback = mq_send_session_migrate_cb,
583 .session_cleanup_callback = mq_send_session_cleanup_cb,
584 .add_segment_callback = mq_send_add_segment_cb,
585 .del_segment_callback = mq_send_del_segment_cb,
589 vl_api_session_enable_disable_t_handler (vl_api_session_enable_disable_t * mp)
591 vl_api_session_enable_disable_reply_t *rmp;
592 vlib_main_t *vm = vlib_get_main ();
595 vnet_session_enable_disable (vm, mp->is_enable);
596 REPLY_MACRO (VL_API_SESSION_ENABLE_DISABLE_REPLY);
600 vl_api_app_attach_t_handler (vl_api_app_attach_t * mp)
602 int rv = 0, fds[SESSION_N_FD_TYPE], n_fds = 0;
603 vl_api_app_attach_reply_t *rmp;
604 ssvm_private_t *segp, *evt_q_segment;
605 vnet_app_attach_args_t _a, *a = &_a;
606 u8 fd_flags = 0, ctrl_thread;
607 vl_api_registration_t *reg;
608 svm_msg_q_t *ctrl_mq;
610 reg = vl_api_client_index_to_registration (mp->client_index);
614 if (!session_main_is_enabled () || appns_sapi_enabled ())
616 rv = VNET_API_ERROR_FEATURE_DISABLED;
619 /* Only support binary api with socket transport */
620 if (vl_api_registration_file_index (reg) == VL_API_INVALID_FI)
622 rv = VNET_API_ERROR_APP_UNSUPPORTED_CFG;
626 STATIC_ASSERT (sizeof (u64) * APP_OPTIONS_N_OPTIONS <=
627 sizeof (mp->options),
628 "Out of options, fix api message definition");
630 clib_memset (a, 0, sizeof (*a));
631 a->api_client_index = mp->client_index;
632 a->options = mp->options;
633 a->session_cb_vft = &session_mq_cb_vft;
634 a->namespace_id = vl_api_from_api_to_new_vec (mp, &mp->namespace_id);
636 if ((rv = vnet_application_attach (a)))
638 clib_warning ("attach returned: %d", rv);
639 vec_free (a->namespace_id);
642 vec_free (a->namespace_id);
644 /* Send event queues segment */
645 if ((evt_q_segment = session_main_get_evt_q_segment ()))
647 fd_flags |= SESSION_FD_F_VPP_MQ_SEGMENT;
648 fds[n_fds] = evt_q_segment->fd;
651 /* Send fifo segment fd if needed */
652 if (ssvm_type (a->segment) == SSVM_SEGMENT_MEMFD)
654 fd_flags |= SESSION_FD_F_MEMFD_SEGMENT;
655 fds[n_fds] = a->segment->fd;
658 if (a->options[APP_OPTIONS_FLAGS] & APP_OPTIONS_FLAGS_EVT_MQ_USE_EVENTFD)
660 fd_flags |= SESSION_FD_F_MQ_EVENTFD;
661 fds[n_fds] = svm_msg_q_get_producer_eventfd (a->app_evt_q);
667 REPLY_MACRO2 (VL_API_APP_ATTACH_REPLY, ({
670 ctrl_thread = vlib_num_workers () ? 1 : 0;
671 ctrl_mq = session_main_get_vpp_event_queue (ctrl_thread);
673 rmp->app_index = clib_host_to_net_u32 (a->app_index);
674 rmp->app_mq = pointer_to_uword (a->app_evt_q);
675 rmp->vpp_ctrl_mq = pointer_to_uword (ctrl_mq);
676 rmp->vpp_ctrl_mq_thread = ctrl_thread;
678 rmp->fd_flags = fd_flags;
679 if (vec_len (segp->name))
681 vl_api_vec_to_api_string (segp->name, &rmp->segment_name);
683 rmp->segment_size = segp->ssvm_size;
684 rmp->segment_handle = clib_host_to_net_u64 (a->segment_handle);
690 session_send_fds (reg, fds, n_fds);
694 vl_api_app_worker_add_del_t_handler (vl_api_app_worker_add_del_t * mp)
696 int rv = 0, fds[SESSION_N_FD_TYPE], n_fds = 0;
697 vl_api_app_worker_add_del_reply_t *rmp;
698 vl_api_registration_t *reg;
702 if (!session_main_is_enabled () || appns_sapi_enabled ())
704 rv = VNET_API_ERROR_FEATURE_DISABLED;
708 reg = vl_api_client_index_to_registration (mp->client_index);
712 app = application_get_if_valid (clib_net_to_host_u32 (mp->app_index));
715 rv = VNET_API_ERROR_INVALID_VALUE;
719 vnet_app_worker_add_del_args_t args = {
720 .app_index = app->app_index,
721 .wrk_map_index = clib_net_to_host_u32 (mp->wrk_index),
722 .api_client_index = mp->client_index,
725 rv = vnet_app_worker_add_del (&args);
728 clib_warning ("app worker add/del returned: %d", rv);
735 /* Send fifo segment fd if needed */
736 if (ssvm_type (args.segment) == SSVM_SEGMENT_MEMFD)
738 fd_flags |= SESSION_FD_F_MEMFD_SEGMENT;
739 fds[n_fds] = args.segment->fd;
742 if (application_segment_manager_properties (app)->use_mq_eventfd)
744 fd_flags |= SESSION_FD_F_MQ_EVENTFD;
745 fds[n_fds] = svm_msg_q_get_producer_eventfd (args.evt_q);
751 REPLY_MACRO2 (VL_API_APP_WORKER_ADD_DEL_REPLY, ({
752 rmp->is_add = mp->is_add;
753 rmp->wrk_index = clib_host_to_net_u32 (args.wrk_map_index);
754 rmp->segment_handle = clib_host_to_net_u64 (args.segment_handle);
755 if (!rv && mp->is_add)
757 if (vec_len (args.segment->name))
759 vl_api_vec_to_api_string (args.segment->name, &rmp->segment_name);
761 rmp->app_event_queue_address = pointer_to_uword (args.evt_q);
763 rmp->fd_flags = fd_flags;
769 session_send_fds (reg, fds, n_fds);
773 vl_api_application_detach_t_handler (vl_api_application_detach_t * mp)
775 vl_api_application_detach_reply_t *rmp;
776 int rv = VNET_API_ERROR_INVALID_VALUE_2;
777 vnet_app_detach_args_t _a, *a = &_a;
780 if (!session_main_is_enabled () || appns_sapi_enabled ())
782 rv = VNET_API_ERROR_FEATURE_DISABLED;
786 app = application_lookup (mp->client_index);
789 a->app_index = app->app_index;
790 a->api_client_index = mp->client_index;
791 rv = vnet_application_detach (a);
795 REPLY_MACRO (VL_API_APPLICATION_DETACH_REPLY);
799 vl_api_app_namespace_add_del_t_handler (vl_api_app_namespace_add_del_t * mp)
801 vl_api_app_namespace_add_del_reply_t *rmp;
805 if (session_main_is_enabled () == 0)
807 rv = VNET_API_ERROR_FEATURE_DISABLED;
811 ns_id = vl_api_from_api_to_new_vec (mp, &mp->namespace_id);
813 vnet_app_namespace_add_del_args_t args = {
815 .secret = clib_net_to_host_u64 (mp->secret),
816 .sw_if_index = clib_net_to_host_u32 (mp->sw_if_index),
817 .ip4_fib_id = clib_net_to_host_u32 (mp->ip4_fib_id),
818 .ip6_fib_id = clib_net_to_host_u32 (mp->ip6_fib_id),
821 rv = vnet_app_namespace_add_del (&args);
824 appns_index = app_namespace_index_from_id (ns_id);
825 if (appns_index == APP_NAMESPACE_INVALID_INDEX)
827 clib_warning ("app ns lookup failed");
828 rv = VNET_API_ERROR_UNSPECIFIED;
835 REPLY_MACRO2 (VL_API_APP_NAMESPACE_ADD_DEL_REPLY, ({
837 rmp->appns_index = clib_host_to_net_u32 (appns_index);
843 vl_api_session_rule_add_del_t_handler (vl_api_session_rule_add_del_t * mp)
845 vl_api_session_rule_add_del_reply_t *rmp;
846 session_rule_add_del_args_t args;
847 session_rule_table_add_del_args_t *table_args = &args.table_args;
850 clib_memset (&args, 0, sizeof (args));
852 ip_prefix_decode (&mp->lcl, &table_args->lcl);
853 ip_prefix_decode (&mp->rmt, &table_args->rmt);
855 table_args->lcl_port = mp->lcl_port;
856 table_args->rmt_port = mp->rmt_port;
857 table_args->action_index = clib_net_to_host_u32 (mp->action_index);
858 table_args->is_add = mp->is_add;
859 mp->tag[sizeof (mp->tag) - 1] = 0;
860 table_args->tag = format (0, "%s", mp->tag);
861 args.appns_index = clib_net_to_host_u32 (mp->appns_index);
862 args.scope = mp->scope;
863 args.transport_proto =
864 api_session_transport_proto_decode (&mp->transport_proto) ==
865 TRANSPORT_PROTO_UDP ? 1 : 0;
867 rv = vnet_session_rule_add_del (&args);
869 clib_warning ("rule add del returned: %d", rv);
870 vec_free (table_args->tag);
871 REPLY_MACRO (VL_API_SESSION_RULE_ADD_DEL_REPLY);
875 send_session_rule_details4 (mma_rule_16_t * rule, u8 is_local,
876 u8 transport_proto, u32 appns_index, u8 * tag,
877 vl_api_registration_t * reg, u32 context)
879 vl_api_session_rules_details_t *rmp = 0;
880 session_mask_or_match_4_t *match =
881 (session_mask_or_match_4_t *) & rule->match;
882 session_mask_or_match_4_t *mask =
883 (session_mask_or_match_4_t *) & rule->mask;
884 fib_prefix_t lcl, rmt;
886 rmp = vl_msg_api_alloc (sizeof (*rmp));
887 clib_memset (rmp, 0, sizeof (*rmp));
888 rmp->_vl_msg_id = ntohs (VL_API_SESSION_RULES_DETAILS);
889 rmp->context = context;
891 clib_memset (&lcl, 0, sizeof (lcl));
892 clib_memset (&rmt, 0, sizeof (rmt));
893 ip_set (&lcl.fp_addr, &match->lcl_ip, 1);
894 ip_set (&rmt.fp_addr, &match->rmt_ip, 1);
895 lcl.fp_len = ip4_mask_to_preflen (&mask->lcl_ip);
896 rmt.fp_len = ip4_mask_to_preflen (&mask->rmt_ip);
898 ip_prefix_encode (&lcl, &rmp->lcl);
899 ip_prefix_encode (&rmt, &rmp->rmt);
900 rmp->lcl_port = match->lcl_port;
901 rmp->rmt_port = match->rmt_port;
902 rmp->action_index = clib_host_to_net_u32 (rule->action_index);
904 is_local ? SESSION_RULE_SCOPE_API_LOCAL : SESSION_RULE_SCOPE_API_GLOBAL;
905 rmp->transport_proto = api_session_transport_proto_encode (transport_proto);
906 rmp->appns_index = clib_host_to_net_u32 (appns_index);
909 clib_memcpy_fast (rmp->tag, tag, vec_len (tag));
910 rmp->tag[vec_len (tag)] = 0;
913 vl_api_send_msg (reg, (u8 *) rmp);
917 send_session_rule_details6 (mma_rule_40_t * rule, u8 is_local,
918 u8 transport_proto, u32 appns_index, u8 * tag,
919 vl_api_registration_t * reg, u32 context)
921 vl_api_session_rules_details_t *rmp = 0;
922 session_mask_or_match_6_t *match =
923 (session_mask_or_match_6_t *) & rule->match;
924 session_mask_or_match_6_t *mask =
925 (session_mask_or_match_6_t *) & rule->mask;
926 fib_prefix_t lcl, rmt;
928 rmp = vl_msg_api_alloc (sizeof (*rmp));
929 clib_memset (rmp, 0, sizeof (*rmp));
930 rmp->_vl_msg_id = ntohs (VL_API_SESSION_RULES_DETAILS);
931 rmp->context = context;
933 clib_memset (&lcl, 0, sizeof (lcl));
934 clib_memset (&rmt, 0, sizeof (rmt));
935 ip_set (&lcl.fp_addr, &match->lcl_ip, 0);
936 ip_set (&rmt.fp_addr, &match->rmt_ip, 0);
937 lcl.fp_len = ip6_mask_to_preflen (&mask->lcl_ip);
938 rmt.fp_len = ip6_mask_to_preflen (&mask->rmt_ip);
940 ip_prefix_encode (&lcl, &rmp->lcl);
941 ip_prefix_encode (&rmt, &rmp->rmt);
942 rmp->lcl_port = match->lcl_port;
943 rmp->rmt_port = match->rmt_port;
944 rmp->action_index = clib_host_to_net_u32 (rule->action_index);
946 is_local ? SESSION_RULE_SCOPE_API_LOCAL : SESSION_RULE_SCOPE_API_GLOBAL;
947 rmp->transport_proto = api_session_transport_proto_encode (transport_proto);
948 rmp->appns_index = clib_host_to_net_u32 (appns_index);
951 clib_memcpy_fast (rmp->tag, tag, vec_len (tag));
952 rmp->tag[vec_len (tag)] = 0;
955 vl_api_send_msg (reg, (u8 *) rmp);
959 send_session_rules_table_details (session_rules_table_t * srt, u8 fib_proto,
960 u8 tp, u8 is_local, u32 appns_index,
961 vl_api_registration_t * reg, u32 context)
963 mma_rule_16_t *rule16;
964 mma_rule_40_t *rule40;
965 mma_rules_table_16_t *srt16;
966 mma_rules_table_40_t *srt40;
969 if (is_local || fib_proto == FIB_PROTOCOL_IP4)
973 srt16 = &srt->session_rules_tables_16;
974 pool_foreach (rule16, srt16->rules) {
975 ri = mma_rules_table_rule_index_16 (srt16, rule16);
976 tag = session_rules_table_rule_tag (srt, ri, 1);
977 send_session_rule_details4 (rule16, is_local, tp, appns_index, tag,
982 if (is_local || fib_proto == FIB_PROTOCOL_IP6)
986 srt40 = &srt->session_rules_tables_40;
987 pool_foreach (rule40, srt40->rules) {
988 ri = mma_rules_table_rule_index_40 (srt40, rule40);
989 tag = session_rules_table_rule_tag (srt, ri, 1);
990 send_session_rule_details6 (rule40, is_local, tp, appns_index, tag,
998 vl_api_session_rules_dump_t_handler (vl_api_session_rules_dump_t * mp)
1000 vl_api_registration_t *reg;
1001 session_table_t *st;
1004 reg = vl_api_client_index_to_registration (mp->client_index);
1009 session_table_foreach (st, ({
1010 for (tp = 0; tp < TRANSPORT_N_PROTOS; tp++)
1012 send_session_rules_table_details (&st->session_rules[tp],
1013 st->active_fib_proto, tp,
1014 st->is_local, st->appns_index, reg,
1022 vl_api_app_add_cert_key_pair_t_handler (vl_api_app_add_cert_key_pair_t * mp)
1024 vl_api_app_add_cert_key_pair_reply_t *rmp;
1025 vnet_app_add_cert_key_pair_args_t _a, *a = &_a;
1026 u32 certkey_len, key_len, cert_len;
1028 if (session_main_is_enabled () == 0)
1030 rv = VNET_API_ERROR_FEATURE_DISABLED;
1034 cert_len = clib_net_to_host_u16 (mp->cert_len);
1035 if (cert_len > 10000)
1037 rv = VNET_API_ERROR_INVALID_VALUE;
1041 certkey_len = clib_net_to_host_u16 (mp->certkey_len);
1042 if (certkey_len < cert_len)
1044 rv = VNET_API_ERROR_INVALID_VALUE;
1048 key_len = certkey_len - cert_len;
1049 if (key_len > 10000)
1051 rv = VNET_API_ERROR_INVALID_VALUE;
1055 clib_memset (a, 0, sizeof (*a));
1056 vec_validate (a->cert, cert_len);
1057 vec_validate (a->key, key_len);
1058 clib_memcpy_fast (a->cert, mp->certkey, cert_len);
1059 clib_memcpy_fast (a->key, mp->certkey + cert_len, key_len);
1060 rv = vnet_app_add_cert_key_pair (a);
1066 REPLY_MACRO2 (VL_API_APP_ADD_CERT_KEY_PAIR_REPLY, ({
1068 rmp->index = clib_host_to_net_u32 (a->index);
1074 vl_api_app_del_cert_key_pair_t_handler (vl_api_app_del_cert_key_pair_t * mp)
1076 vl_api_app_del_cert_key_pair_reply_t *rmp;
1079 if (session_main_is_enabled () == 0)
1081 rv = VNET_API_ERROR_FEATURE_DISABLED;
1084 ckpair_index = clib_net_to_host_u32 (mp->index);
1085 rv = vnet_app_del_cert_key_pair (ckpair_index);
1088 REPLY_MACRO (VL_API_APP_DEL_CERT_KEY_PAIR_REPLY);
1091 /* ### WILL BE DEPRECATED POST 20.01 ### */
1093 vl_api_application_tls_cert_add_t_handler (vl_api_application_tls_cert_add_t *
1096 vl_api_application_tls_cert_add_reply_t *rmp;
1097 app_cert_key_pair_t *ckpair;
1101 if (session_main_is_enabled () == 0)
1103 rv = VNET_API_ERROR_FEATURE_DISABLED;
1106 if (!(app = application_lookup (mp->client_index)))
1108 rv = VNET_API_ERROR_APPLICATION_NOT_ATTACHED;
1111 cert_len = clib_net_to_host_u16 (mp->cert_len);
1112 if (cert_len > 10000)
1114 rv = VNET_API_ERROR_INVALID_VALUE;
1117 ckpair = app_cert_key_pair_get_default ();
1118 vec_validate (ckpair->cert, cert_len);
1119 clib_memcpy_fast (ckpair->cert, mp->cert, cert_len);
1122 REPLY_MACRO (VL_API_APPLICATION_TLS_CERT_ADD_REPLY);
1125 /* ### WILL BE DEPRECATED POST 20.01 ### */
1127 vl_api_application_tls_key_add_t_handler (vl_api_application_tls_key_add_t *
1130 vl_api_application_tls_key_add_reply_t *rmp;
1131 app_cert_key_pair_t *ckpair;
1135 if (session_main_is_enabled () == 0)
1137 rv = VNET_API_ERROR_FEATURE_DISABLED;
1140 if (!(app = application_lookup (mp->client_index)))
1142 rv = VNET_API_ERROR_APPLICATION_NOT_ATTACHED;
1145 key_len = clib_net_to_host_u16 (mp->key_len);
1146 if (key_len > 10000)
1148 rv = VNET_API_ERROR_INVALID_VALUE;
1151 ckpair = app_cert_key_pair_get_default ();
1152 vec_validate (ckpair->key, key_len);
1153 clib_memcpy_fast (ckpair->key, mp->key, key_len);
1155 REPLY_MACRO (VL_API_APPLICATION_TLS_KEY_ADD_REPLY);
1158 static clib_error_t *
1159 application_reaper_cb (u32 client_index)
1161 application_t *app = application_lookup (client_index);
1162 vnet_app_detach_args_t _a, *a = &_a;
1165 a->app_index = app->app_index;
1166 a->api_client_index = client_index;
1167 vnet_application_detach (a);
1172 VL_MSG_API_REAPER_FUNCTION (application_reaper_cb);
1174 #define vl_msg_name_crc_list
1175 #include <vnet/vnet_all_api_h.h>
1176 #undef vl_msg_name_crc_list
1179 setup_message_id_table (api_main_t * am)
1181 #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
1182 foreach_vl_msg_name_crc_session;
1187 * session_api_hookup
1188 * Add uri's API message handlers to the table.
1189 * vlib has already mapped shared memory and
1190 * added the client registration handlers.
1191 * See .../open-repo/vlib/memclnt_vlib.c:memclnt_process()
1193 static clib_error_t *
1194 session_api_hookup (vlib_main_t * vm)
1196 api_main_t *am = vlibapi_get_main ();
1199 vl_msg_api_set_handlers(VL_API_##N, #n, \
1200 vl_api_##n##_t_handler, \
1202 vl_api_##n##_t_endian, \
1203 vl_api_##n##_t_print, \
1204 sizeof(vl_api_##n##_t), 1);
1205 foreach_session_api_msg;
1209 * Set up the (msg_name, crc, message-id) table
1211 setup_message_id_table (am);
1216 VLIB_API_INIT_FUNCTION (session_api_hookup);
1219 * Socket api functions
1223 sapi_send_fds (app_worker_t * app_wrk, int *fds, int n_fds)
1225 app_sapi_msg_t smsg = { 0 };
1226 app_namespace_t *app_ns;
1231 app = application_get (app_wrk->app_index);
1232 app_ns = app_namespace_get (app->ns_index);
1233 cs_index = appns_sapi_handle_sock_index (app_wrk->api_client_index);
1234 cs = appns_sapi_get_socket (app_ns, cs_index);
1235 if (PREDICT_FALSE (!cs))
1238 /* There's no payload for the message only the type */
1239 smsg.type = APP_SAPI_MSG_TYPE_SEND_FDS;
1240 clib_socket_sendmsg (cs, &smsg, sizeof (smsg), fds, n_fds);
1244 mq_send_add_segment_sapi_cb (u32 app_wrk_index, u64 segment_handle)
1246 int fds[SESSION_N_FD_TYPE], n_fds = 0;
1247 svm_msg_q_msg_t _msg, *msg = &_msg;
1248 session_app_add_segment_msg_t *mp;
1249 app_worker_t *app_wrk;
1250 session_event_t *evt;
1251 svm_msg_q_t *app_mq;
1256 app_wrk = app_worker_get (app_wrk_index);
1258 fs = segment_manager_get_segment_w_handle (segment_handle);
1260 ASSERT (ssvm_type (sp) == SSVM_SEGMENT_MEMFD);
1262 fd_flags |= SESSION_FD_F_MEMFD_SEGMENT;
1263 fds[n_fds] = sp->fd;
1266 app_mq = app_wrk->event_queue;
1267 if (mq_try_lock_and_alloc_msg (app_mq, msg))
1271 * Send the fd over api socket
1273 sapi_send_fds (app_wrk, fds, n_fds);
1276 * Send the actual message over mq
1278 evt = svm_msg_q_msg_data (app_mq, msg);
1279 clib_memset (evt, 0, sizeof (*evt));
1280 evt->event_type = SESSION_CTRL_EVT_APP_ADD_SEGMENT;
1281 mp = (session_app_add_segment_msg_t *) evt->data;
1282 clib_memset (mp, 0, sizeof (*mp));
1283 mp->segment_size = sp->ssvm_size;
1284 mp->fd_flags = fd_flags;
1285 mp->segment_handle = segment_handle;
1286 strncpy ((char *) mp->segment_name, (char *) sp->name,
1287 sizeof (mp->segment_name) - 1);
1289 svm_msg_q_add_and_unlock (app_mq, msg);
1295 mq_send_del_segment_sapi_cb (u32 app_wrk_index, u64 segment_handle)
1297 svm_msg_q_msg_t _msg, *msg = &_msg;
1298 session_app_del_segment_msg_t *mp;
1299 app_worker_t *app_wrk;
1300 session_event_t *evt;
1301 svm_msg_q_t *app_mq;
1303 app_wrk = app_worker_get (app_wrk_index);
1305 app_mq = app_wrk->event_queue;
1306 if (mq_try_lock_and_alloc_msg (app_mq, msg))
1309 evt = svm_msg_q_msg_data (app_mq, msg);
1310 clib_memset (evt, 0, sizeof (*evt));
1311 evt->event_type = SESSION_CTRL_EVT_APP_DEL_SEGMENT;
1312 mp = (session_app_del_segment_msg_t *) evt->data;
1313 clib_memset (mp, 0, sizeof (*mp));
1314 mp->segment_handle = segment_handle;
1315 svm_msg_q_add_and_unlock (app_mq, msg);
1320 static session_cb_vft_t session_mq_sapi_cb_vft = {
1321 .session_accept_callback = mq_send_session_accepted_cb,
1322 .session_disconnect_callback = mq_send_session_disconnected_cb,
1323 .session_connected_callback = mq_send_session_connected_cb,
1324 .session_reset_callback = mq_send_session_reset_cb,
1325 .session_migrate_callback = mq_send_session_migrate_cb,
1326 .session_cleanup_callback = mq_send_session_cleanup_cb,
1327 .add_segment_callback = mq_send_add_segment_sapi_cb,
1328 .del_segment_callback = mq_send_del_segment_sapi_cb,
1332 session_api_attach_handler (app_namespace_t * app_ns, clib_socket_t * cs,
1333 app_sapi_attach_msg_t * mp)
1335 int rv = 0, fds[SESSION_N_FD_TYPE], n_fds = 0;
1336 vnet_app_attach_args_t _a, *a = &_a;
1337 app_sapi_attach_reply_msg_t *rmp;
1338 ssvm_private_t *evt_q_segment;
1339 u8 fd_flags = 0, ctrl_thread;
1340 app_ns_api_handle_t *handle;
1341 app_sapi_msg_t msg = { 0 };
1342 app_worker_t *app_wrk;
1343 svm_msg_q_t *ctrl_mq;
1346 /* Make sure name is null terminated */
1349 clib_memset (a, 0, sizeof (*a));
1350 a->api_client_index = appns_sapi_socket_handle (app_ns, cs);
1351 a->name = format (0, "%s", (char *) mp->name);
1352 a->options = mp->options;
1353 a->session_cb_vft = &session_mq_sapi_cb_vft;
1354 a->use_sock_api = 1;
1355 a->options[APP_OPTIONS_NAMESPACE] = app_namespace_index (app_ns);
1357 if ((rv = vnet_application_attach (a)))
1359 clib_warning ("attach returned: %d", rv);
1363 /* Send event queues segment */
1364 if ((evt_q_segment = session_main_get_evt_q_segment ()))
1366 fd_flags |= SESSION_FD_F_VPP_MQ_SEGMENT;
1367 fds[n_fds] = evt_q_segment->fd;
1370 /* Send fifo segment fd if needed */
1371 if (ssvm_type (a->segment) == SSVM_SEGMENT_MEMFD)
1373 fd_flags |= SESSION_FD_F_MEMFD_SEGMENT;
1374 fds[n_fds] = a->segment->fd;
1377 if (a->options[APP_OPTIONS_FLAGS] & APP_OPTIONS_FLAGS_EVT_MQ_USE_EVENTFD)
1379 fd_flags |= SESSION_FD_F_MQ_EVENTFD;
1380 fds[n_fds] = svm_msg_q_get_producer_eventfd (a->app_evt_q);
1386 msg.type = APP_SAPI_MSG_TYPE_ATTACH_REPLY;
1387 rmp = &msg.attach_reply;
1391 ctrl_thread = vlib_num_workers ()? 1 : 0;
1392 ctrl_mq = session_main_get_vpp_event_queue (ctrl_thread);
1393 rmp->app_index = a->app_index;
1394 rmp->app_mq = pointer_to_uword (a->app_evt_q);
1395 rmp->vpp_ctrl_mq = pointer_to_uword (ctrl_mq);
1396 rmp->vpp_ctrl_mq_thread = ctrl_thread;
1398 rmp->fd_flags = fd_flags;
1399 /* No segment name and size since we only support memfds
1400 * in this configuration */
1401 rmp->segment_handle = a->segment_handle;
1402 rmp->api_client_handle = a->api_client_index;
1404 /* Update app index for socket */
1405 handle = (app_ns_api_handle_t *) & cs->private_data;
1406 app = application_get (a->app_index);
1407 app_wrk = application_get_worker (app, 0);
1408 handle->aah_app_wrk_index = app_wrk->wrk_index;
1411 clib_socket_sendmsg (cs, &msg, sizeof (msg), fds, n_fds);
1416 sapi_socket_close_w_handle (u32 api_handle)
1418 app_namespace_t *app_ns = app_namespace_get (api_handle >> 16);
1419 u16 sock_index = api_handle & 0xffff;
1420 app_ns_api_handle_t *handle;
1424 cs = appns_sapi_get_socket (app_ns, sock_index);
1428 handle = (app_ns_api_handle_t *) & cs->private_data;
1429 cf = clib_file_get (&file_main, handle->aah_file_index);
1430 clib_file_del (&file_main, cf);
1432 clib_socket_close (cs);
1433 appns_sapi_free_socket (app_ns, cs);
1437 sapi_add_del_worker_handler (app_namespace_t * app_ns,
1439 app_sapi_worker_add_del_msg_t * mp)
1441 int rv = 0, fds[SESSION_N_FD_TYPE], n_fds = 0;
1442 app_sapi_worker_add_del_reply_msg_t *rmp;
1443 app_ns_api_handle_t *handle;
1444 app_sapi_msg_t msg = { 0 };
1445 app_worker_t *app_wrk;
1446 u32 sapi_handle = -1;
1450 app = application_get_if_valid (mp->app_index);
1453 rv = VNET_API_ERROR_INVALID_VALUE;
1457 sapi_handle = appns_sapi_socket_handle (app_ns, cs);
1459 vnet_app_worker_add_del_args_t args = {
1460 .app_index = app->app_index,
1461 .wrk_map_index = mp->wrk_index,
1462 .api_client_index = sapi_handle,
1463 .is_add = mp->is_add
1465 rv = vnet_app_worker_add_del (&args);
1468 clib_warning ("app worker add/del returned: %d", rv);
1474 sapi_socket_close_w_handle (sapi_handle);
1478 /* Send fifo segment fd if needed */
1479 if (ssvm_type (args.segment) == SSVM_SEGMENT_MEMFD)
1481 fd_flags |= SESSION_FD_F_MEMFD_SEGMENT;
1482 fds[n_fds] = args.segment->fd;
1485 if (application_segment_manager_properties (app)->use_mq_eventfd)
1487 fd_flags |= SESSION_FD_F_MQ_EVENTFD;
1488 fds[n_fds] = svm_msg_q_get_producer_eventfd (args.evt_q);
1494 msg.type = APP_SAPI_MSG_TYPE_ADD_DEL_WORKER_REPLY;
1495 rmp = &msg.worker_add_del_reply;
1497 rmp->is_add = mp->is_add;
1498 rmp->api_client_handle = sapi_handle;
1499 rmp->wrk_index = args.wrk_map_index;
1500 rmp->segment_handle = args.segment_handle;
1501 if (!rv && mp->is_add)
1503 /* No segment name and size. This supports only memfds */
1504 rmp->app_event_queue_address = pointer_to_uword (args.evt_q);
1506 rmp->fd_flags = fd_flags;
1508 /* Update app index for socket */
1509 handle = (app_ns_api_handle_t *) & cs->private_data;
1510 app_wrk = application_get_worker (app, args.wrk_map_index);
1511 handle->aah_app_wrk_index = app_wrk->wrk_index;
1514 clib_socket_sendmsg (cs, &msg, sizeof (msg), fds, n_fds);
1518 sapi_socket_detach (app_namespace_t * app_ns, clib_socket_t * cs)
1520 app_ns_api_handle_t *handle;
1521 app_worker_t *app_wrk;
1522 u32 api_client_handle;
1524 api_client_handle = appns_sapi_socket_handle (app_ns, cs);
1525 sapi_socket_close_w_handle (api_client_handle);
1527 /* Cleanup everything because app worker closed socket or crashed */
1528 handle = (app_ns_api_handle_t *) & cs->private_data;
1529 app_wrk = app_worker_get (handle->aah_app_wrk_index);
1531 vnet_app_worker_add_del_args_t args = {
1532 .app_index = app_wrk->app_index,
1533 .wrk_map_index = app_wrk->wrk_map_index,
1534 .api_client_index = api_client_handle,
1537 /* Send rpc to main thread for worker barrier */
1538 vlib_rpc_call_main_thread (vnet_app_worker_add_del, (u8 *) & args,
1542 static clib_error_t *
1543 sapi_sock_read_ready (clib_file_t * cf)
1545 app_ns_api_handle_t *handle = (app_ns_api_handle_t *) & cf->private_data;
1546 vlib_main_t *vm = vlib_get_main ();
1547 app_sapi_msg_t msg = { 0 };
1548 app_namespace_t *app_ns;
1549 clib_error_t *err = 0;
1552 app_ns = app_namespace_get (handle->aah_app_ns_index);
1553 cs = appns_sapi_get_socket (app_ns, handle->aah_sock_index);
1557 err = clib_socket_recvmsg (cs, &msg, sizeof (msg), 0, 0);
1560 clib_error_free (err);
1561 sapi_socket_detach (app_ns, cs);
1565 handle = (app_ns_api_handle_t *) & cs->private_data;
1567 vlib_worker_thread_barrier_sync (vm);
1571 case APP_SAPI_MSG_TYPE_ATTACH:
1572 session_api_attach_handler (app_ns, cs, &msg.attach);
1574 case APP_SAPI_MSG_TYPE_ADD_DEL_WORKER:
1575 sapi_add_del_worker_handler (app_ns, cs, &msg.worker_add_del);
1578 clib_warning ("app wrk %u unknown message type: %u",
1579 handle->aah_app_wrk_index, msg.type);
1583 vlib_worker_thread_barrier_release (vm);
1589 static clib_error_t *
1590 sapi_sock_write_ready (clib_file_t * cf)
1592 app_ns_api_handle_t *handle = (app_ns_api_handle_t *) & cf->private_data;
1593 clib_warning ("called for app ns %u", handle->aah_app_ns_index);
1597 static clib_error_t *
1598 sapi_sock_error (clib_file_t * cf)
1600 app_ns_api_handle_t *handle = (app_ns_api_handle_t *) & cf->private_data;
1601 app_namespace_t *app_ns;
1604 app_ns = app_namespace_get (handle->aah_app_ns_index);
1605 cs = appns_sapi_get_socket (app_ns, handle->aah_sock_index);
1609 sapi_socket_detach (app_ns, cs);
1613 static clib_error_t *
1614 sapi_sock_accept_ready (clib_file_t * scf)
1616 app_ns_api_handle_t handle = *(app_ns_api_handle_t *) & scf->private_data;
1617 app_namespace_t *app_ns;
1618 clib_file_t cf = { 0 };
1619 clib_error_t *err = 0;
1620 clib_socket_t *ccs, *scs;
1622 /* Listener files point to namespace */
1623 app_ns = app_namespace_get (handle.aah_app_ns_index);
1626 * Initialize client socket
1628 ccs = appns_sapi_alloc_socket (app_ns);
1630 /* Grab server socket after client is initialized */
1631 scs = appns_sapi_get_socket (app_ns, handle.aah_sock_index);
1635 err = clib_socket_accept (scs, ccs);
1638 clib_error_report (err);
1642 cf.read_function = sapi_sock_read_ready;
1643 cf.write_function = sapi_sock_write_ready;
1644 cf.error_function = sapi_sock_error;
1645 cf.file_descriptor = ccs->fd;
1646 /* File points to app namespace and socket */
1647 handle.aah_sock_index = appns_sapi_socket_index (app_ns, ccs);
1648 cf.private_data = handle.as_u64;
1649 cf.description = format (0, "app sock conn fd: %d", ccs->fd);
1651 /* Poll until we get an attach message. Socket points to file and
1652 * application that owns the socket */
1653 handle.aah_app_wrk_index = APP_INVALID_INDEX;
1654 handle.aah_file_index = clib_file_add (&file_main, &cf);
1655 ccs->private_data = handle.as_u64;
1660 appns_sapi_free_socket (app_ns, ccs);
1665 appns_sapi_add_ns_socket (app_namespace_t * app_ns)
1667 char *subdir = "/app_ns_sockets/";
1668 app_ns_api_handle_t *handle;
1669 clib_file_t cf = { 0 };
1670 struct stat file_stat;
1676 vec_add (dir, vlib_unix_get_runtime_dir (),
1677 strlen (vlib_unix_get_runtime_dir ()));
1678 vec_add (dir, (u8 *) subdir, strlen (subdir));
1680 err = vlib_unix_recursive_mkdir ((char *) dir);
1683 clib_error_report (err);
1688 app_ns->sock_name = format (0, "%v%v%c", dir, app_ns->ns_id, 0);
1691 * Create and initialize socket to listen on
1693 cs = appns_sapi_alloc_socket (app_ns);
1694 cs->config = (char *) app_ns->sock_name;
1695 cs->flags = CLIB_SOCKET_F_IS_SERVER |
1696 CLIB_SOCKET_F_ALLOW_GROUP_WRITE |
1697 CLIB_SOCKET_F_SEQPACKET | CLIB_SOCKET_F_PASSCRED;
1699 if ((err = clib_socket_init (cs)))
1701 clib_error_report (err);
1706 if (stat ((char *) app_ns->sock_name, &file_stat) == -1)
1715 cf.read_function = sapi_sock_accept_ready;
1716 cf.file_descriptor = cs->fd;
1717 /* File points to namespace */
1718 handle = (app_ns_api_handle_t *) & cf.private_data;
1719 handle->aah_app_ns_index = app_namespace_index (app_ns);
1720 handle->aah_sock_index = appns_sapi_socket_index (app_ns, cs);
1721 cf.description = format (0, "app sock listener: %s", app_ns->sock_name);
1723 /* Socket points to clib file index */
1724 handle = (app_ns_api_handle_t *) & cs->private_data;
1725 handle->aah_file_index = clib_file_add (&file_main, &cf);
1726 handle->aah_app_wrk_index = APP_INVALID_INDEX;
1734 * fd.io coding-style-patch-verification: ON
1737 * eval: (c-set-style "gnu")