2 * Copyright (c) 2017-2019 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (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.
18 #include <vcl/vppcom.h>
19 #include <vcl/vcl_debug.h>
20 #include <vcl/vcl_private.h>
21 #include <svm/fifo_segment.h>
23 __thread uword __vcl_worker_index = ~0;
26 vcl_segment_is_not_mounted (vcl_worker_t * wrk, u64 segment_handle)
30 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
33 segment_index = vcl_segment_table_lookup (segment_handle);
34 if (segment_index != VCL_INVALID_SEGMENT_INDEX)
41 vcl_mq_dequeue_batch (vcl_worker_t * wrk, svm_msg_q_t * mq, u32 n_max_msg)
47 n_msgs = clib_min (svm_msg_q_size (mq), n_max_msg);
48 for (i = 0; i < n_msgs; i++)
50 vec_add2 (wrk->mq_msg_vector, msg, 1);
51 svm_msg_q_sub_w_lock (mq, msg);
57 vppcom_session_state_str (vcl_session_state_t state)
79 case STATE_VPP_CLOSING:
80 st = "STATE_VPP_CLOSING";
83 case STATE_DISCONNECT:
84 st = "STATE_DISCONNECT";
95 case STATE_LISTEN_NO_MQ:
96 st = "STATE_LISTEN_NO_MQ";
100 st = "UNKNOWN_STATE";
108 format_ip4_address (u8 * s, va_list * args)
110 u8 *a = va_arg (*args, u8 *);
111 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
115 format_ip6_address (u8 * s, va_list * args)
117 ip6_address_t *a = va_arg (*args, ip6_address_t *);
118 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
120 i_max_n_zero = ARRAY_LEN (a->as_u16);
122 i_first_zero = i_max_n_zero;
124 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
126 u32 is_zero = a->as_u16[i] == 0;
127 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
133 if ((!is_zero && n_zeros > max_n_zeros)
134 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
136 i_max_n_zero = i_first_zero;
137 max_n_zeros = n_zeros;
138 i_first_zero = ARRAY_LEN (a->as_u16);
143 last_double_colon = 0;
144 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
146 if (i == i_max_n_zero && max_n_zeros > 1)
148 s = format (s, "::");
149 i += max_n_zeros - 1;
150 last_double_colon = 1;
154 s = format (s, "%s%x",
155 (last_double_colon || i == 0) ? "" : ":",
156 clib_net_to_host_u16 (a->as_u16[i]));
157 last_double_colon = 0;
164 /* Format an IP46 address. */
166 format_ip46_address (u8 * s, va_list * args)
168 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
169 ip46_type_t type = va_arg (*args, ip46_type_t);
175 is_ip4 = ip46_address_is_ip4 (ip46);
186 format (s, "%U", format_ip4_address, &ip46->ip4) :
187 format (s, "%U", format_ip6_address, &ip46->ip6);
191 * VPPCOM Utility Functions
195 vcl_send_session_listen (vcl_worker_t * wrk, vcl_session_t * s)
197 app_session_evt_t _app_evt, *app_evt = &_app_evt;
198 session_listen_msg_t *mp;
201 mq = vcl_worker_ctrl_mq (wrk);
202 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_LISTEN);
203 mp = (session_listen_msg_t *) app_evt->evt->data;
204 memset (mp, 0, sizeof (*mp));
205 mp->client_index = wrk->my_client_index;
206 mp->context = s->session_index;
207 mp->wrk_index = wrk->vpp_wrk_index;
208 mp->is_ip4 = s->transport.is_ip4;
209 clib_memcpy_fast (&mp->ip, &s->transport.lcl_ip, sizeof (mp->ip));
210 mp->port = s->transport.lcl_port;
211 mp->proto = s->session_type;
212 app_send_ctrl_evt_to_vpp (mq, app_evt);
216 vcl_send_session_connect (vcl_worker_t * wrk, vcl_session_t * s)
218 app_session_evt_t _app_evt, *app_evt = &_app_evt;
219 session_connect_msg_t *mp;
222 mq = vcl_worker_ctrl_mq (wrk);
223 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_CONNECT);
224 mp = (session_connect_msg_t *) app_evt->evt->data;
225 memset (mp, 0, sizeof (*mp));
226 mp->client_index = wrk->my_client_index;
227 mp->context = s->session_index;
228 mp->wrk_index = wrk->vpp_wrk_index;
229 mp->is_ip4 = s->transport.is_ip4;
230 mp->parent_handle = s->parent_handle;
231 clib_memcpy_fast (&mp->ip, &s->transport.rmt_ip, sizeof (mp->ip));
232 clib_memcpy_fast (&mp->lcl_ip, &s->transport.lcl_ip, sizeof (mp->lcl_ip));
233 mp->port = s->transport.rmt_port;
234 mp->proto = s->session_type;
235 app_send_ctrl_evt_to_vpp (mq, app_evt);
239 vcl_send_session_unlisten (vcl_worker_t * wrk, vcl_session_t * s)
241 app_session_evt_t _app_evt, *app_evt = &_app_evt;
242 session_unlisten_msg_t *mp;
245 mq = vcl_worker_ctrl_mq (wrk);
246 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_UNLISTEN);
247 mp = (session_unlisten_msg_t *) app_evt->evt->data;
248 memset (mp, 0, sizeof (*mp));
249 mp->client_index = wrk->my_client_index;
250 mp->wrk_index = wrk->vpp_wrk_index;
251 mp->handle = s->vpp_handle;
252 mp->context = wrk->wrk_index;
253 app_send_ctrl_evt_to_vpp (mq, app_evt);
257 vcl_send_session_disconnect (vcl_worker_t * wrk, vcl_session_t * s)
259 app_session_evt_t _app_evt, *app_evt = &_app_evt;
260 session_disconnect_msg_t *mp;
263 /* Send to thread that owns the session */
265 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_DISCONNECT);
266 mp = (session_disconnect_msg_t *) app_evt->evt->data;
267 memset (mp, 0, sizeof (*mp));
268 mp->client_index = wrk->my_client_index;
269 mp->handle = s->vpp_handle;
270 app_send_ctrl_evt_to_vpp (mq, app_evt);
274 vcl_send_app_detach (vcl_worker_t * wrk)
276 app_session_evt_t _app_evt, *app_evt = &_app_evt;
277 session_app_detach_msg_t *mp;
280 mq = vcl_worker_ctrl_mq (wrk);
281 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_DETACH);
282 mp = (session_app_detach_msg_t *) app_evt->evt->data;
283 memset (mp, 0, sizeof (*mp));
284 mp->client_index = wrk->my_client_index;
285 app_send_ctrl_evt_to_vpp (mq, app_evt);
289 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
290 session_handle_t handle, int retval)
292 app_session_evt_t _app_evt, *app_evt = &_app_evt;
293 session_accepted_reply_msg_t *rmp;
294 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
295 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
296 rmp->handle = handle;
297 rmp->context = context;
298 rmp->retval = retval;
299 app_send_ctrl_evt_to_vpp (mq, app_evt);
303 vcl_send_session_disconnected_reply (svm_msg_q_t * mq, u32 context,
304 session_handle_t handle, int retval)
306 app_session_evt_t _app_evt, *app_evt = &_app_evt;
307 session_disconnected_reply_msg_t *rmp;
308 app_alloc_ctrl_evt_to_vpp (mq, app_evt,
309 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
310 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
311 rmp->handle = handle;
312 rmp->context = context;
313 rmp->retval = retval;
314 app_send_ctrl_evt_to_vpp (mq, app_evt);
318 vcl_send_session_reset_reply (svm_msg_q_t * mq, u32 context,
319 session_handle_t handle, int retval)
321 app_session_evt_t _app_evt, *app_evt = &_app_evt;
322 session_reset_reply_msg_t *rmp;
323 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_RESET_REPLY);
324 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
325 rmp->handle = handle;
326 rmp->context = context;
327 rmp->retval = retval;
328 app_send_ctrl_evt_to_vpp (mq, app_evt);
332 vcl_send_session_worker_update (vcl_worker_t * wrk, vcl_session_t * s,
335 app_session_evt_t _app_evt, *app_evt = &_app_evt;
336 session_worker_update_msg_t *mp;
339 mq = vcl_session_vpp_evt_q (wrk, s);
340 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_WORKER_UPDATE);
341 mp = (session_worker_update_msg_t *) app_evt->evt->data;
342 mp->client_index = wrk->my_client_index;
343 mp->handle = s->vpp_handle;
344 mp->req_wrk_index = wrk->vpp_wrk_index;
345 mp->wrk_index = wrk_index;
346 app_send_ctrl_evt_to_vpp (mq, app_evt);
350 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp,
353 vcl_session_t *session, *listen_session;
354 svm_fifo_t *rx_fifo, *tx_fifo;
358 session = vcl_session_alloc (wrk);
360 listen_session = vcl_session_get (wrk, ls_index);
361 if (listen_session->vpp_handle != mp->listener_handle)
363 VDBG (0, "ERROR: listener handle %lu does not match session %u",
364 mp->listener_handle, ls_index);
368 if (vcl_segment_is_not_mounted (wrk, mp->segment_handle))
370 VDBG (0, "ERROR: segment for session %u is not mounted!",
371 session->session_index);
375 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
376 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
377 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
379 rx_fifo->client_session_index = session->session_index;
380 tx_fifo->client_session_index = session->session_index;
381 rx_fifo->client_thread_index = vcl_get_worker_index ();
382 tx_fifo->client_thread_index = vcl_get_worker_index ();
383 vpp_wrk_index = tx_fifo->master_thread_index;
384 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
385 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
387 session->vpp_handle = mp->handle;
388 session->vpp_thread_index = rx_fifo->master_thread_index;
389 session->rx_fifo = rx_fifo;
390 session->tx_fifo = tx_fifo;
392 session->session_state = STATE_ACCEPT;
393 session->transport.rmt_port = mp->rmt.port;
394 session->transport.is_ip4 = mp->rmt.is_ip4;
395 clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
396 sizeof (ip46_address_t));
398 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
399 session->transport.lcl_port = listen_session->transport.lcl_port;
400 session->transport.lcl_ip = listen_session->transport.lcl_ip;
401 session->session_type = listen_session->session_type;
402 session->is_dgram = vcl_proto_is_dgram (session->session_type);
403 session->listener_index = listen_session->session_index;
404 listen_session->n_accepted_sessions++;
406 VDBG (1, "session %u [0x%llx]: client accept request from %s address %U"
407 " port %d queue %p!", session->session_index, mp->handle,
408 mp->rmt.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->rmt.ip,
409 mp->rmt.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
410 clib_net_to_host_u16 (mp->rmt.port), session->vpp_evt_q);
411 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
413 vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context,
414 session->vpp_handle, 0);
416 return session->session_index;
419 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
420 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
421 VNET_API_ERROR_INVALID_ARGUMENT);
422 vcl_session_free (wrk, session);
423 return VCL_INVALID_SESSION_INDEX;
427 vcl_session_connected_handler (vcl_worker_t * wrk,
428 session_connected_msg_t * mp)
430 u32 session_index, vpp_wrk_index;
431 svm_fifo_t *rx_fifo, *tx_fifo;
432 vcl_session_t *session = 0;
434 session_index = mp->context;
435 session = vcl_session_get (wrk, session_index);
438 VDBG (0, "ERROR: vpp handle 0x%llx has no session index (%u)!",
439 mp->handle, session_index);
440 return VCL_INVALID_SESSION_INDEX;
444 VDBG (0, "ERROR: session index %u: connect failed! %U",
445 session_index, format_api_error, ntohl (mp->retval));
446 session->session_state = STATE_FAILED | STATE_DISCONNECT;
447 session->vpp_handle = mp->handle;
448 return session_index;
451 session->vpp_handle = mp->handle;
452 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
454 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
455 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
456 if (vcl_segment_is_not_mounted (wrk, mp->segment_handle))
458 VDBG (0, "segment for session %u is not mounted!",
459 session->session_index);
460 session->session_state = STATE_FAILED | STATE_DISCONNECT;
461 vcl_send_session_disconnect (wrk, session);
462 return session_index;
465 rx_fifo->client_session_index = session_index;
466 tx_fifo->client_session_index = session_index;
467 rx_fifo->client_thread_index = vcl_get_worker_index ();
468 tx_fifo->client_thread_index = vcl_get_worker_index ();
470 vpp_wrk_index = tx_fifo->master_thread_index;
471 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
472 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
476 session->ct_rx_fifo = uword_to_pointer (mp->ct_rx_fifo, svm_fifo_t *);
477 session->ct_tx_fifo = uword_to_pointer (mp->ct_tx_fifo, svm_fifo_t *);
478 if (vcl_segment_is_not_mounted (wrk, mp->ct_segment_handle))
480 VDBG (0, "ct segment for session %u is not mounted!",
481 session->session_index);
482 session->session_state = STATE_FAILED | STATE_DISCONNECT;
483 vcl_send_session_disconnect (wrk, session);
484 return session_index;
488 session->rx_fifo = rx_fifo;
489 session->tx_fifo = tx_fifo;
490 session->vpp_thread_index = rx_fifo->master_thread_index;
491 session->transport.is_ip4 = mp->lcl.is_ip4;
492 clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
493 sizeof (session->transport.lcl_ip));
494 session->transport.lcl_port = mp->lcl.port;
495 session->session_state = STATE_CONNECT;
497 /* Add it to lookup table */
498 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
500 VDBG (1, "session %u [0x%llx] connected! rx_fifo %p, refcnt %d, tx_fifo %p,"
501 " refcnt %d", session_index, mp->handle, session->rx_fifo,
502 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
504 return session_index;
508 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
510 vcl_session_msg_t *accepted_msg;
513 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
515 accepted_msg = &session->accept_evts_fifo[i];
516 if (accepted_msg->accepted_msg.handle == handle)
518 accepted_msg->flags |= flags;
526 vcl_session_reset_handler (vcl_worker_t * wrk,
527 session_reset_msg_t * reset_msg)
529 vcl_session_t *session;
532 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
533 session = vcl_session_get (wrk, sid);
536 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
537 return VCL_INVALID_SESSION_INDEX;
540 /* Caught a reset before actually accepting the session */
541 if (session->session_state == STATE_LISTEN)
544 if (!vcl_flag_accepted_session (session, reset_msg->handle,
545 VCL_ACCEPTED_F_RESET))
546 VDBG (0, "session was not accepted!");
547 return VCL_INVALID_SESSION_INDEX;
550 session->session_state = STATE_DISCONNECT;
551 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
556 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
558 vcl_session_t *session;
559 u32 sid = mp->context;
561 session = vcl_session_get (wrk, sid);
564 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
565 format_api_error, mp->retval);
568 session->session_state = STATE_FAILED;
569 session->vpp_handle = mp->handle;
574 VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!",
576 return VCL_INVALID_SESSION_INDEX;
580 session->vpp_handle = mp->handle;
581 session->transport.is_ip4 = mp->lcl_is_ip4;
582 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
583 sizeof (ip46_address_t));
584 session->transport.lcl_port = mp->lcl_port;
585 vcl_session_table_add_listener (wrk, mp->handle, sid);
586 session->session_state = STATE_LISTEN;
588 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
589 vec_validate (wrk->vpp_event_queues, 0);
590 wrk->vpp_event_queues[0] = session->vpp_evt_q;
592 if (vcl_session_is_cl (session))
594 svm_fifo_t *rx_fifo, *tx_fifo;
595 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
596 rx_fifo = uword_to_pointer (mp->rx_fifo, svm_fifo_t *);
597 rx_fifo->client_session_index = sid;
598 tx_fifo = uword_to_pointer (mp->tx_fifo, svm_fifo_t *);
599 tx_fifo->client_session_index = sid;
600 session->rx_fifo = rx_fifo;
601 session->tx_fifo = tx_fifo;
604 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
609 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
611 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
614 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
615 if (!s || s->session_state != STATE_DISCONNECT)
617 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
622 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
623 s->session_index, mp->handle, format_api_error, ntohl (mp->retval));
625 if (mp->context != wrk->wrk_index)
626 VDBG (0, "wrong context");
628 vcl_session_table_del_vpp_handle (wrk, mp->handle);
629 vcl_session_free (wrk, s);
633 vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
635 session_migrated_msg_t *mp = (session_migrated_msg_t *) data;
638 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
641 VDBG (0, "Migrated notification with wrong handle %llx", mp->handle);
645 s->vpp_thread_index = mp->vpp_thread_index;
646 s->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
648 vec_validate (wrk->vpp_event_queues, s->vpp_thread_index);
649 wrk->vpp_event_queues[s->vpp_thread_index] = s->vpp_evt_q;
651 vcl_session_table_del_vpp_handle (wrk, mp->handle);
652 vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
654 /* Generate new tx event if we have outstanding data */
655 if (svm_fifo_has_event (s->tx_fifo))
656 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
657 SESSION_IO_EVT_TX, SVM_Q_WAIT);
659 VDBG (0, "Migrated 0x%x to thread %u", mp->handle, s->vpp_thread_index);
662 static vcl_session_t *
663 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
665 vcl_session_msg_t *vcl_msg;
666 vcl_session_t *session;
668 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
669 if (PREDICT_FALSE (session != 0))
670 VWRN ("session overlap handle %lu state %u!", msg->handle,
671 session->session_state);
673 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
676 VERR ("couldn't find listen session: listener handle %llx",
677 msg->listener_handle);
681 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
682 vcl_msg->accepted_msg = *msg;
683 /* Session handle points to listener until fully accepted by app */
684 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
689 static vcl_session_t *
690 vcl_session_disconnected_handler (vcl_worker_t * wrk,
691 session_disconnected_msg_t * msg)
693 vcl_session_t *session;
695 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
698 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
702 /* Caught a disconnect before actually accepting the session */
703 if (session->session_state == STATE_LISTEN)
705 if (!vcl_flag_accepted_session (session, msg->handle,
706 VCL_ACCEPTED_F_CLOSED))
707 VDBG (0, "session was not accepted!");
711 session->session_state = STATE_VPP_CLOSING;
716 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
718 session_req_worker_update_msg_t *msg;
721 msg = (session_req_worker_update_msg_t *) data;
722 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
726 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
730 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
732 session_worker_update_reply_msg_t *msg;
735 msg = (session_worker_update_reply_msg_t *) data;
736 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
739 VDBG (0, "unknown handle 0x%llx", msg->handle);
742 if (vcl_segment_is_not_mounted (wrk, msg->segment_handle))
744 clib_warning ("segment for session %u is not mounted!",
751 s->rx_fifo = uword_to_pointer (msg->rx_fifo, svm_fifo_t *);
752 s->tx_fifo = uword_to_pointer (msg->tx_fifo, svm_fifo_t *);
753 s->rx_fifo->client_session_index = s->session_index;
754 s->tx_fifo->client_session_index = s->session_index;
755 s->rx_fifo->client_thread_index = wrk->wrk_index;
756 s->tx_fifo->client_thread_index = wrk->wrk_index;
758 s->session_state = STATE_UPDATED;
760 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
761 s->vpp_handle, wrk->wrk_index);
765 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
767 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
768 session_app_add_segment_msg_t *msg;
772 msg = (session_app_add_segment_msg_t *) data;
776 vl_socket_client_recv_fd_msg2 (&wrk->bapi_sock_ctx, &fd, 1, 5);
777 seg_type = SSVM_SEGMENT_MEMFD;
780 segment_handle = msg->segment_handle;
781 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
783 clib_warning ("invalid segment handle");
787 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
790 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
794 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
799 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
801 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
802 vcl_segment_detach (msg->segment_handle);
803 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
807 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
809 session_disconnected_msg_t *disconnected_msg;
810 vcl_session_t *session;
812 switch (e->event_type)
814 case SESSION_IO_EVT_RX:
815 case SESSION_IO_EVT_TX:
816 session = vcl_session_get (wrk, e->session_index);
817 if (!session || !(session->session_state & STATE_OPEN))
819 vec_add1 (wrk->unhandled_evts_vector, *e);
821 case SESSION_CTRL_EVT_ACCEPTED:
822 vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
824 case SESSION_CTRL_EVT_CONNECTED:
825 vcl_session_connected_handler (wrk,
826 (session_connected_msg_t *) e->data);
828 case SESSION_CTRL_EVT_DISCONNECTED:
829 disconnected_msg = (session_disconnected_msg_t *) e->data;
830 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
833 VDBG (0, "disconnected session %u [0x%llx]", session->session_index,
834 session->vpp_handle);
836 case SESSION_CTRL_EVT_RESET:
837 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
839 case SESSION_CTRL_EVT_BOUND:
840 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
842 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
843 vcl_session_unlisten_reply_handler (wrk, e->data);
845 case SESSION_CTRL_EVT_MIGRATED:
846 vcl_session_migrated_handler (wrk, e->data);
848 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
849 vcl_session_req_worker_update_handler (wrk, e->data);
851 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
852 vcl_session_worker_update_reply_handler (wrk, e->data);
854 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
855 vcl_session_app_add_segment_handler (wrk, e->data);
857 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
858 vcl_session_app_del_segment_handler (wrk, e->data);
861 clib_warning ("unhandled %u", e->event_type);
867 vppcom_wait_for_session_state_change (u32 session_index,
868 vcl_session_state_t state,
871 vcl_worker_t *wrk = vcl_worker_get_current ();
872 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
873 vcl_session_t *volatile session;
879 session = vcl_session_get (wrk, session_index);
880 if (PREDICT_FALSE (!session))
882 return VPPCOM_EBADFD;
884 if (session->session_state & state)
888 if (session->session_state & STATE_FAILED)
890 return VPPCOM_ECONNREFUSED;
893 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
898 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
899 vcl_handle_mq_event (wrk, e);
900 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
902 while (clib_time_now (&wrk->clib_time) < timeout);
904 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
905 vppcom_session_state_str (state));
906 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
908 return VPPCOM_ETIMEDOUT;
912 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
914 vcl_session_state_t state;
918 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
921 vec_foreach (sip, wrk->pending_session_wrk_updates)
923 s = vcl_session_get (wrk, *sip);
924 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
925 state = s->session_state;
926 vppcom_wait_for_session_state_change (s->session_index, STATE_UPDATED, 5);
927 s->session_state = state;
929 vec_reset_length (wrk->pending_session_wrk_updates);
933 vcl_flush_mq_events (void)
935 vcl_worker_t *wrk = vcl_worker_get_current ();
936 svm_msg_q_msg_t *msg;
941 mq = wrk->app_event_queue;
943 vcl_mq_dequeue_batch (wrk, mq, ~0);
944 svm_msg_q_unlock (mq);
946 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
948 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
949 e = svm_msg_q_msg_data (mq, msg);
950 vcl_handle_mq_event (wrk, e);
951 svm_msg_q_free_msg (mq, msg);
953 vec_reset_length (wrk->mq_msg_vector);
954 vcl_handle_pending_wrk_updates (wrk);
958 vppcom_app_session_enable (void)
962 if (vcm->app_state != STATE_APP_ENABLED)
964 vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
965 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
966 if (PREDICT_FALSE (rv))
968 VDBG (0, "application session enable timed out! returning %d (%s)",
969 rv, vppcom_retval_str (rv));
977 vppcom_app_attach (void)
981 vppcom_app_send_attach ();
982 rv = vcl_wait_for_app_state_change (STATE_APP_ATTACHED);
983 if (PREDICT_FALSE (rv))
985 VDBG (0, "application attach timed out! returning %d (%s)", rv,
986 vppcom_retval_str (rv));
994 vppcom_session_unbind (u32 session_handle)
996 vcl_worker_t *wrk = vcl_worker_get_current ();
997 session_accepted_msg_t *accepted_msg;
998 vcl_session_t *session = 0;
999 vcl_session_msg_t *evt;
1001 session = vcl_session_get_w_handle (wrk, session_handle);
1003 return VPPCOM_EBADFD;
1005 /* Flush pending accept events, if any */
1006 while (clib_fifo_elts (session->accept_evts_fifo))
1008 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1009 accepted_msg = &evt->accepted_msg;
1010 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1011 vcl_send_session_accepted_reply (session->vpp_evt_q,
1012 accepted_msg->context,
1013 session->vpp_handle, -1);
1015 clib_fifo_free (session->accept_evts_fifo);
1017 vcl_send_session_unlisten (wrk, session);
1019 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1020 session->vpp_handle);
1021 vcl_evt (VCL_EVT_UNBIND, session);
1023 session->vpp_handle = ~0;
1024 session->session_state = STATE_DISCONNECT;
1030 vppcom_session_disconnect (u32 session_handle)
1032 vcl_worker_t *wrk = vcl_worker_get_current ();
1033 svm_msg_q_t *vpp_evt_q;
1034 vcl_session_t *session, *listen_session;
1035 vcl_session_state_t state;
1038 session = vcl_session_get_w_handle (wrk, session_handle);
1040 return VPPCOM_EBADFD;
1042 vpp_handle = session->vpp_handle;
1043 state = session->session_state;
1045 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
1046 vpp_handle, state, vppcom_session_state_str (state));
1048 if (PREDICT_FALSE (state & STATE_LISTEN))
1050 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
1051 return VPPCOM_EBADFD;
1054 if (state & STATE_VPP_CLOSING)
1056 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
1057 vcl_send_session_disconnected_reply (vpp_evt_q, wrk->my_client_index,
1059 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
1060 session->session_index, vpp_handle);
1064 VDBG (1, "session %u [0x%llx]: sending disconnect...",
1065 session->session_index, vpp_handle);
1066 vcl_send_session_disconnect (wrk, session);
1069 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
1071 listen_session = vcl_session_get (wrk, session->listener_index);
1072 listen_session->n_accepted_sessions--;
1081 * Notify vpp of the disconnect and mark the worker as free. If we're the
1082 * last worker, do a full cleanup otherwise, since we're probably a forked
1083 * child, avoid syscalls as much as possible. We might've lost privileges.
1086 vppcom_app_exit (void)
1088 if (!pool_elts (vcm->workers))
1090 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1091 vcl_set_worker_index (~0);
1092 vcl_elog_stop (vcm);
1096 * VPPCOM Public API functions
1099 vppcom_app_create (char *app_name)
1101 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1106 VDBG (1, "already initialized");
1107 return VPPCOM_EEXIST;
1111 vppcom_cfg (&vcm->cfg);
1112 vcl_cfg = &vcm->cfg;
1114 vcm->main_cpu = pthread_self ();
1115 vcm->main_pid = getpid ();
1116 vcm->app_name = format (0, "%s", app_name);
1117 vppcom_init_error_string_table ();
1118 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1119 20 /* timeout in secs */ );
1120 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1121 clib_spinlock_init (&vcm->workers_lock);
1122 clib_rwlock_init (&vcm->segment_table_lock);
1123 atexit (vppcom_app_exit);
1125 /* Allocate default worker */
1126 vcl_worker_alloc_and_init ();
1128 /* API hookup and connect to VPP */
1129 vcl_elog_init (vcm);
1130 vcm->app_state = STATE_APP_START;
1131 rv = vppcom_connect_to_vpp (app_name);
1134 VERR ("couldn't connect to VPP!");
1137 VDBG (0, "sending session enable");
1138 rv = vppcom_app_session_enable ();
1141 VERR ("vppcom_app_session_enable() failed!");
1145 VDBG (0, "sending app attach");
1146 rv = vppcom_app_attach ();
1149 VERR ("vppcom_app_attach() failed!");
1153 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1154 vcm->workers[0].my_client_index, vcm->workers[0].my_client_index);
1160 vppcom_app_destroy (void)
1163 f64 orig_app_timeout;
1165 if (!pool_elts (vcm->workers))
1168 vcl_evt (VCL_EVT_DETACH, vcm);
1170 if (pool_elts (vcm->workers) == 1)
1172 vcl_send_app_detach (vcl_worker_get_current ());
1173 orig_app_timeout = vcm->cfg.app_timeout;
1174 vcm->cfg.app_timeout = 2.0;
1175 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
1176 vcm->cfg.app_timeout = orig_app_timeout;
1177 if (PREDICT_FALSE (rv))
1178 VDBG (0, "application detach timed out! returning %d (%s)", rv,
1179 vppcom_retval_str (rv));
1180 vec_free (vcm->app_name);
1181 vcl_worker_cleanup (vcl_worker_get_current (), 0 /* notify vpp */ );
1185 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1188 vcl_set_worker_index (~0);
1189 vcl_elog_stop (vcm);
1190 vl_client_disconnect_from_vlib ();
1194 vppcom_session_create (u8 proto, u8 is_nonblocking)
1196 vcl_worker_t *wrk = vcl_worker_get_current ();
1197 vcl_session_t *session;
1199 session = vcl_session_alloc (wrk);
1201 session->session_type = proto;
1202 session->session_state = STATE_START;
1203 session->vpp_handle = ~0;
1204 session->is_dgram = vcl_proto_is_dgram (proto);
1207 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
1209 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1210 is_nonblocking, session_index);
1212 VDBG (0, "created session %u", session->session_index);
1214 return vcl_session_handle (session);
1218 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * session,
1219 vcl_session_handle_t sh, u8 do_disconnect)
1221 vcl_session_state_t state;
1222 u32 next_sh, vep_sh;
1227 is_vep = session->is_vep;
1228 next_sh = session->vep.next_sh;
1229 vep_sh = session->vep.vep_sh;
1230 state = session->session_state;
1231 vpp_handle = session->vpp_handle;
1233 VDBG (1, "session %u [0x%llx] closing", session->session_index, vpp_handle);
1237 while (next_sh != ~0)
1239 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1240 if (PREDICT_FALSE (rv < 0))
1241 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1242 " failed! rv %d (%s)", vpp_handle, next_sh, vep_sh, rv,
1243 vppcom_retval_str (rv));
1245 next_sh = session->vep.next_sh;
1250 if (session->is_vep_session)
1252 rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, sh, 0);
1254 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1255 "failed! rv %d (%s)", session->session_index, vpp_handle,
1256 vep_sh, rv, vppcom_retval_str (rv));
1261 VDBG (1, "session %u [0x%llx] disconnect skipped",
1262 session->session_index, vpp_handle);
1266 if (state & STATE_LISTEN)
1268 rv = vppcom_session_unbind (sh);
1269 if (PREDICT_FALSE (rv < 0))
1270 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1271 "rv %d (%s)", session->session_index, vpp_handle, rv,
1272 vppcom_retval_str (rv));
1275 else if ((state & STATE_OPEN)
1276 || (vcl_session_is_connectable_listener (wrk, session)))
1278 rv = vppcom_session_disconnect (sh);
1279 if (PREDICT_FALSE (rv < 0))
1280 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1281 " rv %d (%s)", session->session_index, vpp_handle,
1282 rv, vppcom_retval_str (rv));
1284 else if (state == STATE_DISCONNECT)
1286 svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, session);
1287 vcl_send_session_reset_reply (mq, wrk->my_client_index,
1288 session->vpp_handle, 0);
1292 VDBG (0, "session %u [0x%llx] removed", session->session_index, vpp_handle);
1295 vcl_session_table_del_vpp_handle (wrk, vpp_handle);
1296 vcl_session_free (wrk, session);
1297 vcl_evt (VCL_EVT_CLOSE, session, rv);
1303 vppcom_session_close (uint32_t session_handle)
1305 vcl_worker_t *wrk = vcl_worker_get_current ();
1306 vcl_session_t *session;
1308 session = vcl_session_get_w_handle (wrk, session_handle);
1310 return VPPCOM_EBADFD;
1311 return vcl_session_cleanup (wrk, session, session_handle,
1312 1 /* do_disconnect */ );
1316 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1318 vcl_worker_t *wrk = vcl_worker_get_current ();
1319 vcl_session_t *session = 0;
1322 return VPPCOM_EINVAL;
1324 session = vcl_session_get_w_handle (wrk, session_handle);
1326 return VPPCOM_EBADFD;
1328 if (session->is_vep)
1330 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1331 session->session_index);
1332 return VPPCOM_EBADFD;
1335 session->transport.is_ip4 = ep->is_ip4;
1337 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1338 sizeof (ip4_address_t));
1340 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1341 sizeof (ip6_address_t));
1342 session->transport.lcl_port = ep->port;
1344 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1345 "proto %s", session->session_index, session_handle,
1346 session->transport.is_ip4 ? "IPv4" : "IPv6",
1347 format_ip46_address, &session->transport.lcl_ip,
1348 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1349 clib_net_to_host_u16 (session->transport.lcl_port),
1350 vppcom_proto_str (session->session_type));
1351 vcl_evt (VCL_EVT_BIND, session);
1353 if (session->session_type == VPPCOM_PROTO_UDP)
1354 vppcom_session_listen (session_handle, 10);
1360 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1362 vcl_worker_t *wrk = vcl_worker_get_current ();
1363 vcl_session_t *listen_session = 0;
1364 u64 listen_vpp_handle;
1367 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1368 if (!listen_session || listen_session->is_vep)
1369 return VPPCOM_EBADFD;
1371 if (q_len == 0 || q_len == ~0)
1372 q_len = vcm->cfg.listen_queue_size;
1374 listen_vpp_handle = listen_session->vpp_handle;
1375 if (listen_session->session_state & STATE_LISTEN)
1377 VDBG (0, "session %u [0x%llx]: already in listen state!",
1378 listen_sh, listen_vpp_handle);
1382 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1385 * Send listen request to vpp and wait for reply
1387 vcl_send_session_listen (wrk, listen_session);
1388 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1390 vcm->cfg.session_timeout);
1392 if (PREDICT_FALSE (rv))
1394 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1395 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1396 listen_sh, listen_session->vpp_handle, rv,
1397 vppcom_retval_str (rv));
1405 vppcom_session_tls_add_cert (uint32_t session_handle, char *cert,
1409 vcl_worker_t *wrk = vcl_worker_get_current ();
1410 vcl_session_t *session = 0;
1412 session = vcl_session_get_w_handle (wrk, session_handle);
1414 return VPPCOM_EBADFD;
1416 if (cert_len == 0 || cert_len == ~0)
1417 return VPPCOM_EBADFD;
1420 * Send listen request to vpp and wait for reply
1422 vppcom_send_application_tls_cert_add (session, cert, cert_len);
1423 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1424 vcl_wait_for_app_state_change (STATE_APP_READY);
1430 vppcom_session_tls_add_key (uint32_t session_handle, char *key,
1434 vcl_worker_t *wrk = vcl_worker_get_current ();
1435 vcl_session_t *session = 0;
1437 session = vcl_session_get_w_handle (wrk, session_handle);
1439 return VPPCOM_EBADFD;
1441 if (key_len == 0 || key_len == ~0)
1442 return VPPCOM_EBADFD;
1444 vppcom_send_application_tls_key_add (session, key, key_len);
1445 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1446 vcl_wait_for_app_state_change (STATE_APP_READY);
1451 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1455 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1457 return VPPCOM_EBADFD;
1460 if ((ls->session_state != STATE_LISTEN)
1461 && (!vcl_session_is_connectable_listener (wrk, ls)))
1464 "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1465 " (%s)", ls->vpp_handle, ls->session_state,
1466 vppcom_session_state_str (ls->session_state));
1467 return VPPCOM_EBADFD;
1473 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1475 if (!strcmp (proto_str, "TCP"))
1476 *proto = VPPCOM_PROTO_TCP;
1477 else if (!strcmp (proto_str, "tcp"))
1478 *proto = VPPCOM_PROTO_TCP;
1479 else if (!strcmp (proto_str, "UDP"))
1480 *proto = VPPCOM_PROTO_UDP;
1481 else if (!strcmp (proto_str, "udp"))
1482 *proto = VPPCOM_PROTO_UDP;
1483 else if (!strcmp (proto_str, "UDPC"))
1484 *proto = VPPCOM_PROTO_UDPC;
1485 else if (!strcmp (proto_str, "udpc"))
1486 *proto = VPPCOM_PROTO_UDPC;
1487 else if (!strcmp (proto_str, "SCTP"))
1488 *proto = VPPCOM_PROTO_SCTP;
1489 else if (!strcmp (proto_str, "sctp"))
1490 *proto = VPPCOM_PROTO_SCTP;
1491 else if (!strcmp (proto_str, "TLS"))
1492 *proto = VPPCOM_PROTO_TLS;
1493 else if (!strcmp (proto_str, "tls"))
1494 *proto = VPPCOM_PROTO_TLS;
1495 else if (!strcmp (proto_str, "QUIC"))
1496 *proto = VPPCOM_PROTO_QUIC;
1497 else if (!strcmp (proto_str, "quic"))
1498 *proto = VPPCOM_PROTO_QUIC;
1505 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1508 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1509 vcl_worker_t *wrk = vcl_worker_get_current ();
1510 session_accepted_msg_t accepted_msg;
1511 vcl_session_t *listen_session = 0;
1512 vcl_session_t *client_session = 0;
1513 vcl_session_msg_t *evt;
1514 svm_msg_q_msg_t msg;
1519 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1520 if (!listen_session)
1521 return VPPCOM_EBADFD;
1523 listen_session_index = listen_session->session_index;
1524 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1527 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1529 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1530 accept_flags = evt->flags;
1531 accepted_msg = evt->accepted_msg;
1535 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1536 VCL_SESS_ATTR_NONBLOCK);
1539 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1540 return VPPCOM_EAGAIN;
1542 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1543 return VPPCOM_EAGAIN;
1545 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1546 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1548 vcl_handle_mq_event (wrk, e);
1549 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1552 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1553 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1559 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1560 listen_session_index);
1561 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1562 return VPPCOM_ECONNABORTED;
1564 listen_session = vcl_session_get (wrk, listen_session_index);
1565 client_session = vcl_session_get (wrk, client_session_index);
1567 if (flags & O_NONBLOCK)
1568 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1570 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1571 " flags %d, is_nonblocking %u", listen_session->session_index,
1572 listen_session->vpp_handle, client_session_index,
1573 client_session->vpp_handle, flags,
1574 VCL_SESS_ATTR_TEST (client_session->attr, VCL_SESS_ATTR_NONBLOCK));
1578 ep->is_ip4 = client_session->transport.is_ip4;
1579 ep->port = client_session->transport.rmt_port;
1580 if (client_session->transport.is_ip4)
1581 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1582 sizeof (ip4_address_t));
1584 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1585 sizeof (ip6_address_t));
1588 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1589 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1590 client_session_index, client_session->vpp_handle,
1591 format_ip46_address, &client_session->transport.rmt_ip,
1592 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1593 clib_net_to_host_u16 (client_session->transport.rmt_port),
1594 format_ip46_address, &client_session->transport.lcl_ip,
1595 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1596 clib_net_to_host_u16 (client_session->transport.lcl_port));
1597 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1598 client_session_index);
1601 * Session might have been closed already
1605 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1606 client_session->session_state = STATE_VPP_CLOSING;
1607 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1608 client_session->session_state = STATE_DISCONNECT;
1610 return vcl_session_handle (client_session);
1614 vcl_ip_copy_from_ep (ip46_address_t * ip, vppcom_endpt_t * ep)
1617 clib_memcpy_fast (&ip->ip4, ep->ip, sizeof (ip4_address_t));
1619 clib_memcpy_fast (&ip->ip6, ep->ip, sizeof (ip6_address_t));
1623 vcl_ip_copy_to_ep (ip46_address_t * ip, vppcom_endpt_t * ep, u8 is_ip4)
1625 ep->is_ip4 = is_ip4;
1627 clib_memcpy_fast (ep->ip, &ip->ip4, sizeof (ip4_address_t));
1629 clib_memcpy_fast (ep->ip, &ip->ip6, sizeof (ip6_address_t));
1633 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1635 vcl_worker_t *wrk = vcl_worker_get_current ();
1636 vcl_session_t *session = 0;
1640 session = vcl_session_get_w_handle (wrk, session_handle);
1642 return VPPCOM_EBADFD;
1643 session_index = session->session_index;
1645 if (PREDICT_FALSE (session->is_vep))
1647 VDBG (0, "ERROR: cannot connect epoll session %u!",
1648 session->session_index);
1649 return VPPCOM_EBADFD;
1652 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1654 VDBG (0, "session handle %u [0x%llx]: session already "
1655 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1656 session_handle, session->vpp_handle,
1657 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1658 &session->transport.rmt_ip, session->transport.is_ip4 ?
1659 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1660 clib_net_to_host_u16 (session->transport.rmt_port),
1661 vppcom_proto_str (session->session_type), session->session_state,
1662 vppcom_session_state_str (session->session_state));
1666 session->transport.is_ip4 = server_ep->is_ip4;
1667 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1668 session->transport.rmt_port = server_ep->port;
1669 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1671 VDBG (0, "session handle %u: connecting to server %s %U "
1672 "port %d proto %s", session_handle,
1673 session->transport.is_ip4 ? "IPv4" : "IPv6",
1674 format_ip46_address,
1675 &session->transport.rmt_ip, session->transport.is_ip4 ?
1676 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1677 clib_net_to_host_u16 (session->transport.rmt_port),
1678 vppcom_proto_str (session->session_type));
1680 vcl_send_session_connect (wrk, session);
1682 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK))
1683 return VPPCOM_EINPROGRESS;
1686 * Wait for reply from vpp if blocking
1688 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1689 vcm->cfg.session_timeout);
1691 session = vcl_session_get (wrk, session_index);
1692 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1693 session->vpp_handle, rv ? "failed" : "succeeded");
1699 vppcom_session_stream_connect (uint32_t session_handle,
1700 uint32_t parent_session_handle)
1702 vcl_worker_t *wrk = vcl_worker_get_current ();
1703 vcl_session_t *session, *parent_session;
1704 u32 session_index, parent_session_index;
1707 session = vcl_session_get_w_handle (wrk, session_handle);
1709 return VPPCOM_EBADFD;
1710 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1711 if (!parent_session)
1712 return VPPCOM_EBADFD;
1714 session_index = session->session_index;
1715 parent_session_index = parent_session->session_index;
1716 if (PREDICT_FALSE (session->is_vep))
1718 VDBG (0, "ERROR: cannot connect epoll session %u!",
1719 session->session_index);
1720 return VPPCOM_EBADFD;
1723 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1725 VDBG (0, "session handle %u [0x%llx]: session already "
1726 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1727 session_handle, session->vpp_handle,
1728 parent_session_handle, parent_session->vpp_handle,
1729 vppcom_proto_str (session->session_type), session->session_state,
1730 vppcom_session_state_str (session->session_state));
1734 /* Connect to quic session specifics */
1735 session->transport.is_ip4 = parent_session->transport.is_ip4;
1736 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1737 session->transport.rmt_port = 0;
1738 session->parent_handle = parent_session->vpp_handle;
1740 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1741 session_handle, parent_session_handle, parent_session->vpp_handle);
1744 * Send connect request and wait for reply from vpp
1746 vcl_send_session_connect (wrk, session);
1747 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1748 vcm->cfg.session_timeout);
1750 session->listener_index = parent_session_index;
1751 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1753 parent_session->n_accepted_sessions++;
1755 session = vcl_session_get (wrk, session_index);
1756 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1757 session->vpp_handle, rv ? "failed" : "succeeded");
1763 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1765 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1769 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1772 vcl_worker_t *wrk = vcl_worker_get_current ();
1773 int n_read = 0, is_nonblocking;
1774 vcl_session_t *s = 0;
1775 svm_fifo_t *rx_fifo;
1776 svm_msg_q_msg_t msg;
1781 if (PREDICT_FALSE (!buf))
1782 return VPPCOM_EINVAL;
1784 s = vcl_session_get_w_handle (wrk, session_handle);
1785 if (PREDICT_FALSE (!s || s->is_vep))
1786 return VPPCOM_EBADFD;
1788 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1790 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1791 s->session_index, s->vpp_handle, s->session_state,
1792 vppcom_session_state_str (s->session_state));
1793 return vcl_session_closed_error (s);
1796 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1797 is_ct = vcl_session_is_ct (s);
1798 mq = wrk->app_event_queue;
1799 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1802 if (svm_fifo_is_empty_cons (rx_fifo))
1806 if (vcl_session_is_closing (s))
1807 return vcl_session_closing_error (s);
1808 svm_fifo_unset_event (s->rx_fifo);
1809 return VPPCOM_EWOULDBLOCK;
1811 while (svm_fifo_is_empty_cons (rx_fifo))
1813 if (vcl_session_is_closing (s))
1814 return vcl_session_closing_error (s);
1816 svm_fifo_unset_event (s->rx_fifo);
1817 svm_msg_q_lock (mq);
1818 if (svm_msg_q_is_empty (mq))
1819 svm_msg_q_wait (mq);
1821 svm_msg_q_sub_w_lock (mq, &msg);
1822 e = svm_msg_q_msg_data (mq, &msg);
1823 svm_msg_q_unlock (mq);
1824 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1825 vcl_handle_mq_event (wrk, e);
1826 svm_msg_q_free_msg (mq, &msg);
1831 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1833 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1835 if (svm_fifo_is_empty_cons (rx_fifo))
1836 svm_fifo_unset_event (s->rx_fifo);
1838 /* Cut-through sessions might request tx notifications on rx fifos */
1839 if (PREDICT_FALSE (rx_fifo->want_deq_ntf))
1841 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1842 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1843 svm_fifo_reset_has_deq_ntf (s->rx_fifo);
1846 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1847 s->vpp_handle, n_read, rx_fifo);
1853 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1855 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1859 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1861 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1865 vppcom_session_read_segments (uint32_t session_handle,
1866 vppcom_data_segments_t ds)
1868 vcl_worker_t *wrk = vcl_worker_get_current ();
1869 int n_read = 0, is_nonblocking;
1870 vcl_session_t *s = 0;
1871 svm_fifo_t *rx_fifo;
1872 svm_msg_q_msg_t msg;
1877 s = vcl_session_get_w_handle (wrk, session_handle);
1878 if (PREDICT_FALSE (!s || s->is_vep))
1879 return VPPCOM_EBADFD;
1881 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1882 return vcl_session_closed_error (s);
1884 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1885 is_ct = vcl_session_is_ct (s);
1886 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1887 rx_fifo = s->rx_fifo;
1891 svm_fifo_unset_event (s->rx_fifo);
1893 if (svm_fifo_is_empty_cons (rx_fifo))
1897 svm_fifo_unset_event (rx_fifo);
1898 return VPPCOM_EWOULDBLOCK;
1900 while (svm_fifo_is_empty_cons (rx_fifo))
1902 if (vcl_session_is_closing (s))
1903 return vcl_session_closing_error (s);
1905 svm_fifo_unset_event (rx_fifo);
1906 svm_msg_q_lock (mq);
1907 if (svm_msg_q_is_empty (mq))
1908 svm_msg_q_wait (mq);
1910 svm_msg_q_sub_w_lock (mq, &msg);
1911 e = svm_msg_q_msg_data (mq, &msg);
1912 svm_msg_q_unlock (mq);
1913 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1914 vcl_handle_mq_event (wrk, e);
1915 svm_msg_q_free_msg (mq, &msg);
1919 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_seg_t *) ds);
1920 svm_fifo_unset_event (rx_fifo);
1926 vppcom_session_free_segments (uint32_t session_handle,
1927 vppcom_data_segments_t ds)
1929 vcl_worker_t *wrk = vcl_worker_get_current ();
1932 s = vcl_session_get_w_handle (wrk, session_handle);
1933 if (PREDICT_FALSE (!s || s->is_vep))
1936 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_seg_t *) ds);
1940 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
1942 u32 first_copy = clib_min (ds[0].len, max_bytes);
1943 clib_memcpy_fast (buf, ds[0].data, first_copy);
1944 if (first_copy < max_bytes)
1946 clib_memcpy_fast (buf + first_copy, ds[1].data,
1947 clib_min (ds[1].len, max_bytes - first_copy));
1953 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1955 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
1959 vppcom_session_write_inline (uint32_t session_handle, void *buf, size_t n,
1962 vcl_worker_t *wrk = vcl_worker_get_current ();
1963 int n_write, is_nonblocking;
1964 vcl_session_t *s = 0;
1965 session_evt_type_t et;
1966 svm_msg_q_msg_t msg;
1967 svm_fifo_t *tx_fifo;
1972 if (PREDICT_FALSE (!buf || n == 0))
1973 return VPPCOM_EINVAL;
1975 s = vcl_session_get_w_handle (wrk, session_handle);
1976 if (PREDICT_FALSE (!s))
1977 return VPPCOM_EBADFD;
1979 if (PREDICT_FALSE (s->is_vep))
1981 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
1982 " session!", s->session_index, s->vpp_handle);
1983 return VPPCOM_EBADFD;
1986 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1988 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
1989 s->session_index, s->vpp_handle, s->session_state,
1990 vppcom_session_state_str (s->session_state));
1991 return vcl_session_closed_error (s);;
1994 is_ct = vcl_session_is_ct (s);
1995 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
1996 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1998 mq = wrk->app_event_queue;
1999 if (svm_fifo_is_full_prod (tx_fifo))
2003 return VPPCOM_EWOULDBLOCK;
2005 while (svm_fifo_is_full_prod (tx_fifo))
2007 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2008 if (vcl_session_is_closing (s))
2009 return vcl_session_closing_error (s);
2010 svm_msg_q_lock (mq);
2011 if (svm_msg_q_is_empty (mq))
2012 svm_msg_q_wait (mq);
2014 svm_msg_q_sub_w_lock (mq, &msg);
2015 e = svm_msg_q_msg_data (mq, &msg);
2016 svm_msg_q_unlock (mq);
2018 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
2019 vcl_handle_mq_event (wrk, e);
2020 svm_msg_q_free_msg (mq, &msg);
2024 et = SESSION_IO_EVT_TX;
2025 if (is_flush && !is_ct)
2026 et = SESSION_IO_EVT_TX_FLUSH;
2029 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2030 s->vpp_evt_q, buf, n, et,
2031 0 /* do_evt */ , SVM_Q_WAIT);
2033 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2034 0 /* do_evt */ , SVM_Q_WAIT);
2036 if (svm_fifo_set_event (s->tx_fifo))
2037 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
2040 ASSERT (n_write > 0);
2042 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2043 s->vpp_handle, n_write);
2049 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2051 return vppcom_session_write_inline (session_handle, buf, n,
2056 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2058 return vppcom_session_write_inline (session_handle, buf, n,
2062 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2063 if (PREDICT_FALSE (!_s->rx_fifo)) \
2065 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2067 if (!vcl_session_is_ct (_s)) \
2069 svm_fifo_unset_event (_s->rx_fifo); \
2070 if (svm_fifo_is_empty (_s->rx_fifo)) \
2073 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2075 svm_fifo_unset_event (_s->ct_rx_fifo); \
2076 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2082 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2083 unsigned long n_bits, unsigned long *read_map,
2084 unsigned long *write_map,
2085 unsigned long *except_map, u32 * bits_set)
2087 session_disconnected_msg_t *disconnected_msg;
2088 session_connected_msg_t *connected_msg;
2089 vcl_session_t *session;
2092 switch (e->event_type)
2094 case SESSION_IO_EVT_RX:
2095 sid = e->session_index;
2096 session = vcl_session_get (wrk, sid);
2099 vcl_fifo_rx_evt_valid_or_break (session);
2100 if (sid < n_bits && read_map)
2102 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2106 case SESSION_IO_EVT_TX:
2107 sid = e->session_index;
2108 session = vcl_session_get (wrk, sid);
2111 if (sid < n_bits && write_map)
2113 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2117 case SESSION_CTRL_EVT_ACCEPTED:
2118 session = vcl_session_accepted (wrk,
2119 (session_accepted_msg_t *) e->data);
2122 sid = session->session_index;
2123 if (sid < n_bits && read_map)
2125 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2129 case SESSION_CTRL_EVT_CONNECTED:
2130 connected_msg = (session_connected_msg_t *) e->data;
2131 sid = vcl_session_connected_handler (wrk, connected_msg);
2132 if (sid == VCL_INVALID_SESSION_INDEX)
2134 if (sid < n_bits && write_map)
2136 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2140 case SESSION_CTRL_EVT_DISCONNECTED:
2141 disconnected_msg = (session_disconnected_msg_t *) e->data;
2142 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2145 sid = session->session_index;
2146 if (sid < n_bits && except_map)
2148 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2152 case SESSION_CTRL_EVT_RESET:
2153 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2154 if (sid < n_bits && except_map)
2156 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2160 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2161 vcl_session_unlisten_reply_handler (wrk, e->data);
2163 case SESSION_CTRL_EVT_MIGRATED:
2164 vcl_session_migrated_handler (wrk, e->data);
2166 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2167 vcl_session_worker_update_reply_handler (wrk, e->data);
2169 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2170 vcl_session_req_worker_update_handler (wrk, e->data);
2172 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2173 vcl_session_app_add_segment_handler (wrk, e->data);
2175 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2176 vcl_session_app_del_segment_handler (wrk, e->data);
2179 clib_warning ("unhandled: %u", e->event_type);
2185 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2186 unsigned long n_bits, unsigned long *read_map,
2187 unsigned long *write_map, unsigned long *except_map,
2188 double time_to_wait, u32 * bits_set)
2190 svm_msg_q_msg_t *msg;
2194 svm_msg_q_lock (mq);
2195 if (svm_msg_q_is_empty (mq))
2199 svm_msg_q_unlock (mq);
2205 svm_msg_q_unlock (mq);
2208 else if (time_to_wait < 0)
2210 svm_msg_q_wait (mq);
2214 if (svm_msg_q_timedwait (mq, time_to_wait))
2216 svm_msg_q_unlock (mq);
2221 vcl_mq_dequeue_batch (wrk, mq, ~0);
2222 svm_msg_q_unlock (mq);
2224 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2226 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2227 e = svm_msg_q_msg_data (mq, msg);
2228 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2229 except_map, bits_set);
2230 svm_msg_q_free_msg (mq, msg);
2232 vec_reset_length (wrk->mq_msg_vector);
2233 vcl_handle_pending_wrk_updates (wrk);
2238 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2239 vcl_si_set * read_map, vcl_si_set * write_map,
2240 vcl_si_set * except_map, double time_to_wait,
2243 double wait = 0, start = 0;
2247 wait = time_to_wait;
2248 start = clib_time_now (&wrk->clib_time);
2253 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2254 write_map, except_map, wait, bits_set);
2260 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2268 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2269 vcl_si_set * read_map, vcl_si_set * write_map,
2270 vcl_si_set * except_map, double time_to_wait,
2273 vcl_mq_evt_conn_t *mqc;
2274 int __clib_unused n_read;
2278 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2279 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2280 vec_len (wrk->mq_events), time_to_wait);
2281 for (i = 0; i < n_mq_evts; i++)
2283 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2284 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2285 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2286 except_map, 0, bits_set);
2289 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2293 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2294 vcl_si_set * except_map, double time_to_wait)
2296 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2297 vcl_worker_t *wrk = vcl_worker_get_current ();
2298 vcl_session_t *session = 0;
2301 if (n_bits && read_map)
2303 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2304 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2305 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2306 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2308 if (n_bits && write_map)
2310 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2311 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2312 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2313 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2315 if (n_bits && except_map)
2317 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2318 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2319 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2320 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2330 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2331 if (!(session = vcl_session_get (wrk, sid)))
2333 if (except_map && sid < minbits)
2334 clib_bitmap_set_no_check (except_map, sid, 1);
2338 rv = svm_fifo_is_full_prod (session->tx_fifo);
2341 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2345 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2352 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2353 if (!(session = vcl_session_get (wrk, sid)))
2355 if (except_map && sid < minbits)
2356 clib_bitmap_set_no_check (except_map, sid, 1);
2360 rv = vcl_session_read_ready (session);
2363 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2371 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2373 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2374 read_map, write_map, except_map, &bits_set);
2376 vec_reset_length (wrk->unhandled_evts_vector);
2378 if (vcm->cfg.use_mq_eventfd)
2379 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2380 time_to_wait, &bits_set);
2382 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2383 time_to_wait, &bits_set);
2389 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2391 vcl_session_t *session;
2392 vppcom_epoll_t *vep;
2393 u32 sh = vep_handle;
2395 if (VPPCOM_DEBUG <= 2)
2398 session = vcl_session_get_w_handle (wrk, vep_handle);
2399 if (PREDICT_FALSE (!session))
2401 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2404 if (PREDICT_FALSE (!session->is_vep))
2406 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2409 vep = &session->vep;
2410 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2413 " is_vep_session = %u\n"
2414 " next_sh = 0x%x (%u)\n"
2415 "}\n", vep_handle, session->is_vep, session->is_vep_session,
2416 vep->next_sh, vep->next_sh);
2418 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2420 session = vcl_session_get_w_handle (wrk, sh);
2421 if (PREDICT_FALSE (!session))
2423 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2426 if (PREDICT_FALSE (session->is_vep))
2428 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2430 else if (PREDICT_FALSE (!session->is_vep_session))
2432 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2435 vep = &session->vep;
2436 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2437 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2438 sh, session->vep.vep_sh, vep_handle);
2439 if (session->is_vep_session)
2441 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2443 " next_sh = 0x%x (%u)\n"
2444 " prev_sh = 0x%x (%u)\n"
2445 " vep_sh = 0x%x (%u)\n"
2446 " ev.events = 0x%x\n"
2447 " ev.data.u64 = 0x%llx\n"
2450 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2451 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2452 vep->ev.data.u64, vep->et_mask);
2457 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2461 vppcom_epoll_create (void)
2463 vcl_worker_t *wrk = vcl_worker_get_current ();
2464 vcl_session_t *vep_session;
2466 vep_session = vcl_session_alloc (wrk);
2468 vep_session->is_vep = 1;
2469 vep_session->vep.vep_sh = ~0;
2470 vep_session->vep.next_sh = ~0;
2471 vep_session->vep.prev_sh = ~0;
2472 vep_session->vpp_handle = ~0;
2474 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2475 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2477 return vcl_session_handle (vep_session);
2481 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2482 struct epoll_event *event)
2484 vcl_worker_t *wrk = vcl_worker_get_current ();
2485 vcl_session_t *vep_session;
2486 vcl_session_t *session;
2489 if (vep_handle == session_handle)
2491 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2492 return VPPCOM_EINVAL;
2495 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2496 if (PREDICT_FALSE (!vep_session))
2498 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2499 return VPPCOM_EBADFD;
2501 if (PREDICT_FALSE (!vep_session->is_vep))
2503 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2504 return VPPCOM_EINVAL;
2507 ASSERT (vep_session->vep.vep_sh == ~0);
2508 ASSERT (vep_session->vep.prev_sh == ~0);
2510 session = vcl_session_get_w_handle (wrk, session_handle);
2511 if (PREDICT_FALSE (!session))
2513 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2514 return VPPCOM_EBADFD;
2516 if (PREDICT_FALSE (session->is_vep))
2518 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2519 return VPPCOM_EINVAL;
2525 if (PREDICT_FALSE (!event))
2527 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2528 return VPPCOM_EINVAL;
2530 if (vep_session->vep.next_sh != ~0)
2532 vcl_session_t *next_session;
2533 next_session = vcl_session_get_w_handle (wrk,
2534 vep_session->vep.next_sh);
2535 if (PREDICT_FALSE (!next_session))
2537 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2538 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2539 return VPPCOM_EBADFD;
2541 ASSERT (next_session->vep.prev_sh == vep_handle);
2542 next_session->vep.prev_sh = session_handle;
2544 session->vep.next_sh = vep_session->vep.next_sh;
2545 session->vep.prev_sh = vep_handle;
2546 session->vep.vep_sh = vep_handle;
2547 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2548 session->vep.ev = *event;
2549 session->is_vep = 0;
2550 session->is_vep_session = 1;
2551 vep_session->vep.next_sh = session_handle;
2553 if (session->tx_fifo)
2554 svm_fifo_add_want_deq_ntf (session->tx_fifo,
2555 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2557 /* Generate EPOLLOUT if tx fifo not full */
2558 if ((event->events & EPOLLOUT) &&
2559 (vcl_session_write_ready (session) > 0))
2561 session_event_t e = { 0 };
2562 e.event_type = SESSION_IO_EVT_TX;
2563 e.session_index = session->session_index;
2564 vec_add1 (wrk->unhandled_evts_vector, e);
2566 /* Generate EPOLLIN if rx fifo has data */
2567 if ((event->events & EPOLLIN) && (vcl_session_read_ready (session) > 0))
2569 session_event_t e = { 0 };
2570 e.event_type = SESSION_IO_EVT_RX;
2571 e.session_index = session->session_index;
2572 vec_add1 (wrk->unhandled_evts_vector, e);
2574 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2575 vep_handle, session_handle, event->events, event->data.u64);
2576 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2580 if (PREDICT_FALSE (!event))
2582 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2586 else if (PREDICT_FALSE (!session->is_vep_session))
2588 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2592 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2594 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2595 session_handle, session->vep.vep_sh, vep_handle);
2600 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2601 if ((event->events & EPOLLOUT) &&
2602 !(session->vep.ev.events & EPOLLOUT) &&
2603 (vcl_session_write_ready (session) > 0))
2605 session_event_t e = { 0 };
2606 e.event_type = SESSION_IO_EVT_TX;
2607 e.session_index = session->session_index;
2608 vec_add1 (wrk->unhandled_evts_vector, e);
2610 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2611 session->vep.ev = *event;
2612 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2613 vep_handle, session_handle, event->events, event->data.u64);
2617 if (PREDICT_FALSE (!session->is_vep_session))
2619 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2623 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2625 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2626 session_handle, session->vep.vep_sh, vep_handle);
2631 if (session->vep.prev_sh == vep_handle)
2632 vep_session->vep.next_sh = session->vep.next_sh;
2635 vcl_session_t *prev_session;
2636 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2637 if (PREDICT_FALSE (!prev_session))
2639 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2640 session->vep.prev_sh, session_handle);
2641 return VPPCOM_EBADFD;
2643 ASSERT (prev_session->vep.next_sh == session_handle);
2644 prev_session->vep.next_sh = session->vep.next_sh;
2646 if (session->vep.next_sh != ~0)
2648 vcl_session_t *next_session;
2649 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2650 if (PREDICT_FALSE (!next_session))
2652 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2653 session->vep.next_sh, session_handle);
2654 return VPPCOM_EBADFD;
2656 ASSERT (next_session->vep.prev_sh == session_handle);
2657 next_session->vep.prev_sh = session->vep.prev_sh;
2660 memset (&session->vep, 0, sizeof (session->vep));
2661 session->vep.next_sh = ~0;
2662 session->vep.prev_sh = ~0;
2663 session->vep.vep_sh = ~0;
2664 session->is_vep_session = 0;
2666 if (session->tx_fifo)
2667 svm_fifo_del_want_deq_ntf (session->tx_fifo, SVM_FIFO_NO_DEQ_NOTIF);
2669 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2671 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2675 VDBG (0, "Invalid operation (%d)!", op);
2679 vep_verify_epoll_chain (wrk, vep_handle);
2686 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2687 struct epoll_event *events, u32 * num_ev)
2689 session_disconnected_msg_t *disconnected_msg;
2690 session_connected_msg_t *connected_msg;
2691 u32 sid = ~0, session_events;
2692 u64 session_evt_data = ~0;
2693 vcl_session_t *session;
2696 switch (e->event_type)
2698 case SESSION_IO_EVT_RX:
2699 sid = e->session_index;
2700 if (!(session = vcl_session_get (wrk, sid)))
2702 vcl_fifo_rx_evt_valid_or_break (session);
2703 session_events = session->vep.ev.events;
2704 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2707 events[*num_ev].events |= EPOLLIN;
2708 session_evt_data = session->vep.ev.data.u64;
2709 session->has_rx_evt = 1;
2711 case SESSION_IO_EVT_TX:
2712 sid = e->session_index;
2713 if (!(session = vcl_session_get (wrk, sid)))
2715 session_events = session->vep.ev.events;
2716 if (!(EPOLLOUT & session_events))
2719 events[*num_ev].events |= EPOLLOUT;
2720 session_evt_data = session->vep.ev.data.u64;
2721 svm_fifo_reset_has_deq_ntf (session->tx_fifo);
2723 case SESSION_CTRL_EVT_ACCEPTED:
2724 session = vcl_session_accepted (wrk,
2725 (session_accepted_msg_t *) e->data);
2729 session_events = session->vep.ev.events;
2730 if (!(EPOLLIN & session_events))
2734 events[*num_ev].events |= EPOLLIN;
2735 session_evt_data = session->vep.ev.data.u64;
2737 case SESSION_CTRL_EVT_CONNECTED:
2738 connected_msg = (session_connected_msg_t *) e->data;
2739 sid = vcl_session_connected_handler (wrk, connected_msg);
2740 /* Generate EPOLLOUT because there's no connected event */
2741 if (!(session = vcl_session_get (wrk, sid)))
2743 session_events = session->vep.ev.events;
2744 if (!(EPOLLOUT & session_events))
2747 events[*num_ev].events |= EPOLLOUT;
2748 session_evt_data = session->vep.ev.data.u64;
2749 if (session->session_state & STATE_FAILED)
2750 events[*num_ev].events |= EPOLLHUP;
2752 case SESSION_CTRL_EVT_DISCONNECTED:
2753 disconnected_msg = (session_disconnected_msg_t *) e->data;
2754 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2757 session_events = session->vep.ev.events;
2758 if (!((EPOLLHUP | EPOLLRDHUP) & session_events))
2761 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2762 session_evt_data = session->vep.ev.data.u64;
2764 case SESSION_CTRL_EVT_RESET:
2765 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2766 if (!(session = vcl_session_get (wrk, sid)))
2768 session_events = session->vep.ev.events;
2769 if (!((EPOLLHUP | EPOLLRDHUP) & session_events))
2772 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2773 session_evt_data = session->vep.ev.data.u64;
2775 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2776 vcl_session_unlisten_reply_handler (wrk, e->data);
2778 case SESSION_CTRL_EVT_MIGRATED:
2779 vcl_session_migrated_handler (wrk, e->data);
2781 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2782 vcl_session_req_worker_update_handler (wrk, e->data);
2784 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2785 vcl_session_worker_update_reply_handler (wrk, e->data);
2787 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2788 vcl_session_app_add_segment_handler (wrk, e->data);
2790 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2791 vcl_session_app_del_segment_handler (wrk, e->data);
2794 VDBG (0, "unhandled: %u", e->event_type);
2800 events[*num_ev].data.u64 = session_evt_data;
2801 if (EPOLLONESHOT & session_events)
2803 session = vcl_session_get (wrk, sid);
2804 session->vep.ev.events = 0;
2811 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2812 struct epoll_event *events, u32 maxevents,
2813 double wait_for_time, u32 * num_ev)
2815 svm_msg_q_msg_t *msg;
2819 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2820 goto handle_dequeued;
2822 svm_msg_q_lock (mq);
2823 if (svm_msg_q_is_empty (mq))
2827 svm_msg_q_unlock (mq);
2830 else if (wait_for_time < 0)
2832 svm_msg_q_wait (mq);
2836 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2838 svm_msg_q_unlock (mq);
2843 ASSERT (maxevents > *num_ev);
2844 vcl_mq_dequeue_batch (wrk, mq, maxevents - *num_ev);
2845 svm_msg_q_unlock (mq);
2848 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2850 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2851 e = svm_msg_q_msg_data (mq, msg);
2852 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2853 svm_msg_q_free_msg (mq, msg);
2855 vec_reset_length (wrk->mq_msg_vector);
2856 vcl_handle_pending_wrk_updates (wrk);
2861 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2862 int maxevents, u32 n_evts, double wait_for_time)
2864 double wait = 0, start = 0, now;
2868 wait = wait_for_time;
2869 start = clib_time_now (&wrk->clib_time);
2874 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2881 now = clib_time_now (&wrk->clib_time);
2882 wait -= now - start;
2891 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2892 int maxevents, u32 n_evts, double wait_for_time)
2894 vcl_mq_evt_conn_t *mqc;
2895 int __clib_unused n_read;
2899 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2901 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2902 vec_len (wrk->mq_events), wait_for_time);
2903 for (i = 0; i < n_mq_evts; i++)
2905 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2906 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2907 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
2909 if (!n_evts && n_mq_evts > 0)
2912 return (int) n_evts;
2916 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
2917 int maxevents, double wait_for_time)
2919 vcl_worker_t *wrk = vcl_worker_get_current ();
2920 vcl_session_t *vep_session;
2924 if (PREDICT_FALSE (maxevents <= 0))
2926 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
2927 return VPPCOM_EINVAL;
2930 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2932 return VPPCOM_EBADFD;
2934 if (PREDICT_FALSE (!vep_session->is_vep))
2936 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
2937 return VPPCOM_EINVAL;
2940 memset (events, 0, sizeof (*events) * maxevents);
2942 if (vec_len (wrk->unhandled_evts_vector))
2944 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2946 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
2948 if (n_evts == maxevents)
2950 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
2954 vec_reset_length (wrk->unhandled_evts_vector);
2957 if (vcm->cfg.use_mq_eventfd)
2958 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
2961 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
2966 vppcom_session_attr (uint32_t session_handle, uint32_t op,
2967 void *buffer, uint32_t * buflen)
2969 vcl_worker_t *wrk = vcl_worker_get_current ();
2970 vcl_session_t *session;
2972 u32 *flags = buffer, tmp_flags = 0;
2973 vppcom_endpt_t *ep = buffer;
2975 session = vcl_session_get_w_handle (wrk, session_handle);
2977 return VPPCOM_EBADFD;
2981 case VPPCOM_ATTR_GET_NREAD:
2982 rv = vcl_session_read_ready (session);
2983 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
2987 case VPPCOM_ATTR_GET_NWRITE:
2988 rv = vcl_session_write_ready (session);
2989 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
2993 case VPPCOM_ATTR_GET_FLAGS:
2994 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
2996 *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr,
2997 VCL_SESS_ATTR_NONBLOCK));
2998 *buflen = sizeof (*flags);
2999 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3000 "is_nonblocking = %u", session_handle, *flags,
3001 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3007 case VPPCOM_ATTR_SET_FLAGS:
3008 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3010 if (*flags & O_NONBLOCK)
3011 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
3013 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
3015 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3016 " is_nonblocking = %u", session_handle, *flags,
3017 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3023 case VPPCOM_ATTR_GET_PEER_ADDR:
3024 if (PREDICT_TRUE (buffer && buflen &&
3025 (*buflen >= sizeof (*ep)) && ep->ip))
3027 ep->is_ip4 = session->transport.is_ip4;
3028 ep->port = session->transport.rmt_port;
3029 if (session->transport.is_ip4)
3030 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3031 sizeof (ip4_address_t));
3033 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3034 sizeof (ip6_address_t));
3035 *buflen = sizeof (*ep);
3036 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3037 "addr = %U, port %u", session_handle, ep->is_ip4,
3038 format_ip46_address, &session->transport.rmt_ip,
3039 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3040 clib_net_to_host_u16 (ep->port));
3046 case VPPCOM_ATTR_GET_LCL_ADDR:
3047 if (PREDICT_TRUE (buffer && buflen &&
3048 (*buflen >= sizeof (*ep)) && ep->ip))
3050 ep->is_ip4 = session->transport.is_ip4;
3051 ep->port = session->transport.lcl_port;
3052 if (session->transport.is_ip4)
3053 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3054 sizeof (ip4_address_t));
3056 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3057 sizeof (ip6_address_t));
3058 *buflen = sizeof (*ep);
3059 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3060 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3061 &session->transport.lcl_ip,
3062 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3063 clib_net_to_host_u16 (ep->port));
3069 case VPPCOM_ATTR_SET_LCL_ADDR:
3070 if (PREDICT_TRUE (buffer && buflen &&
3071 (*buflen >= sizeof (*ep)) && ep->ip))
3073 session->transport.is_ip4 = ep->is_ip4;
3074 session->transport.lcl_port = ep->port;
3075 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3076 *buflen = sizeof (*ep);
3077 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3078 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3079 &session->transport.lcl_ip,
3080 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3081 clib_net_to_host_u16 (ep->port));
3087 case VPPCOM_ATTR_GET_LIBC_EPFD:
3088 rv = session->libc_epfd;
3089 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3092 case VPPCOM_ATTR_SET_LIBC_EPFD:
3093 if (PREDICT_TRUE (buffer && buflen &&
3094 (*buflen == sizeof (session->libc_epfd))))
3096 session->libc_epfd = *(int *) buffer;
3097 *buflen = sizeof (session->libc_epfd);
3099 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3100 session->libc_epfd, *buflen);
3106 case VPPCOM_ATTR_GET_PROTOCOL:
3107 if (buffer && buflen && (*buflen >= sizeof (int)))
3109 *(int *) buffer = session->session_type;
3110 *buflen = sizeof (int);
3112 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3113 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3119 case VPPCOM_ATTR_GET_LISTEN:
3120 if (buffer && buflen && (*buflen >= sizeof (int)))
3122 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3123 VCL_SESS_ATTR_LISTEN);
3124 *buflen = sizeof (int);
3126 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3133 case VPPCOM_ATTR_GET_ERROR:
3134 if (buffer && buflen && (*buflen >= sizeof (int)))
3136 *(int *) buffer = 0;
3137 *buflen = sizeof (int);
3139 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3140 *(int *) buffer, *buflen);
3146 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3147 if (buffer && buflen && (*buflen >= sizeof (u32)))
3151 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3152 session->tx_fifo ? session->tx_fifo->nitems :
3153 vcm->cfg.tx_fifo_size);
3154 *buflen = sizeof (u32);
3156 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3157 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3164 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3165 if (buffer && buflen && (*buflen == sizeof (u32)))
3168 session->sndbuf_size = *(u32 *) buffer;
3169 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3170 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3177 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3178 if (buffer && buflen && (*buflen >= sizeof (u32)))
3182 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3183 session->rx_fifo ? session->rx_fifo->nitems :
3184 vcm->cfg.rx_fifo_size);
3185 *buflen = sizeof (u32);
3187 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3188 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3194 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3195 if (buffer && buflen && (*buflen == sizeof (u32)))
3198 session->rcvbuf_size = *(u32 *) buffer;
3199 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3200 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3207 case VPPCOM_ATTR_GET_REUSEADDR:
3208 if (buffer && buflen && (*buflen >= sizeof (int)))
3211 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3212 VCL_SESS_ATTR_REUSEADDR);
3213 *buflen = sizeof (int);
3215 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3216 *(int *) buffer, *buflen);
3222 case VPPCOM_ATTR_SET_REUSEADDR:
3223 if (buffer && buflen && (*buflen == sizeof (int)) &&
3224 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3227 if (*(int *) buffer)
3228 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
3230 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
3232 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3233 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEADDR),
3240 case VPPCOM_ATTR_GET_REUSEPORT:
3241 if (buffer && buflen && (*buflen >= sizeof (int)))
3244 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3245 VCL_SESS_ATTR_REUSEPORT);
3246 *buflen = sizeof (int);
3248 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3249 *(int *) buffer, *buflen);
3255 case VPPCOM_ATTR_SET_REUSEPORT:
3256 if (buffer && buflen && (*buflen == sizeof (int)) &&
3257 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3260 if (*(int *) buffer)
3261 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
3263 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
3265 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3266 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEPORT),
3273 case VPPCOM_ATTR_GET_BROADCAST:
3274 if (buffer && buflen && (*buflen >= sizeof (int)))
3277 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3278 VCL_SESS_ATTR_BROADCAST);
3279 *buflen = sizeof (int);
3281 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3282 *(int *) buffer, *buflen);
3288 case VPPCOM_ATTR_SET_BROADCAST:
3289 if (buffer && buflen && (*buflen == sizeof (int)))
3292 if (*(int *) buffer)
3293 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
3295 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
3297 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3298 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_BROADCAST),
3305 case VPPCOM_ATTR_GET_V6ONLY:
3306 if (buffer && buflen && (*buflen >= sizeof (int)))
3309 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3310 VCL_SESS_ATTR_V6ONLY);
3311 *buflen = sizeof (int);
3313 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3314 *(int *) buffer, *buflen);
3320 case VPPCOM_ATTR_SET_V6ONLY:
3321 if (buffer && buflen && (*buflen == sizeof (int)))
3324 if (*(int *) buffer)
3325 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
3327 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
3329 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3330 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_V6ONLY),
3337 case VPPCOM_ATTR_GET_KEEPALIVE:
3338 if (buffer && buflen && (*buflen >= sizeof (int)))
3341 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3342 VCL_SESS_ATTR_KEEPALIVE);
3343 *buflen = sizeof (int);
3345 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3346 *(int *) buffer, *buflen);
3352 case VPPCOM_ATTR_SET_KEEPALIVE:
3353 if (buffer && buflen && (*buflen == sizeof (int)))
3356 if (*(int *) buffer)
3357 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3359 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3361 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3362 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_KEEPALIVE),
3369 case VPPCOM_ATTR_GET_TCP_NODELAY:
3370 if (buffer && buflen && (*buflen >= sizeof (int)))
3373 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3374 VCL_SESS_ATTR_TCP_NODELAY);
3375 *buflen = sizeof (int);
3377 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3378 *(int *) buffer, *buflen);
3384 case VPPCOM_ATTR_SET_TCP_NODELAY:
3385 if (buffer && buflen && (*buflen == sizeof (int)))
3388 if (*(int *) buffer)
3389 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3391 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3393 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3394 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_NODELAY),
3401 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3402 if (buffer && buflen && (*buflen >= sizeof (int)))
3405 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3406 VCL_SESS_ATTR_TCP_KEEPIDLE);
3407 *buflen = sizeof (int);
3409 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3410 *(int *) buffer, *buflen);
3416 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3417 if (buffer && buflen && (*buflen == sizeof (int)))
3420 if (*(int *) buffer)
3421 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3423 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3425 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3426 VCL_SESS_ATTR_TEST (session->attr,
3427 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3433 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3434 if (buffer && buflen && (*buflen >= sizeof (int)))
3437 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3438 VCL_SESS_ATTR_TCP_KEEPINTVL);
3439 *buflen = sizeof (int);
3441 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3442 *(int *) buffer, *buflen);
3448 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3449 if (buffer && buflen && (*buflen == sizeof (int)))
3452 if (*(int *) buffer)
3453 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3455 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3457 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3458 VCL_SESS_ATTR_TEST (session->attr,
3459 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3465 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3466 if (buffer && buflen && (*buflen >= sizeof (u32)))
3469 *(u32 *) buffer = session->user_mss;
3470 *buflen = sizeof (int);
3472 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3473 *(int *) buffer, *buflen);
3479 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3480 if (buffer && buflen && (*buflen == sizeof (u32)))
3483 session->user_mss = *(u32 *) buffer;
3485 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3486 session->user_mss, *buflen);
3492 case VPPCOM_ATTR_SET_SHUT:
3493 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3494 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3495 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3496 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3499 case VPPCOM_ATTR_GET_SHUT:
3500 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3502 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3505 *(int *) buffer = SHUT_RD;
3506 else if (tmp_flags == 2)
3507 *(int *) buffer = SHUT_WR;
3508 else if (tmp_flags == 3)
3509 *(int *) buffer = SHUT_RDWR;
3510 *buflen = sizeof (int);
3521 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3522 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3524 vcl_worker_t *wrk = vcl_worker_get_current ();
3526 vcl_session_t *session = 0;
3530 session = vcl_session_get_w_handle (wrk, session_handle);
3531 if (PREDICT_FALSE (!session))
3533 VDBG (0, "sh 0x%llx is closed!", session_handle);
3534 return VPPCOM_EBADFD;
3536 ep->is_ip4 = session->transport.is_ip4;
3537 ep->port = session->transport.rmt_port;
3541 rv = vppcom_session_read (session_handle, buffer, buflen);
3542 else if (flags & MSG_PEEK)
3543 rv = vppcom_session_peek (session_handle, buffer, buflen);
3546 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3547 return VPPCOM_EAFNOSUPPORT;
3552 if (session->transport.is_ip4)
3553 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3554 sizeof (ip4_address_t));
3556 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3557 sizeof (ip6_address_t));
3564 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3565 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3568 return VPPCOM_EINVAL;
3573 return VPPCOM_EINVAL;
3578 // TBD check the flags and do the right thing
3579 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3582 return (vppcom_session_write_inline (session_handle, buffer, buflen, 1));
3586 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3588 vcl_worker_t *wrk = vcl_worker_get_current ();
3589 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3590 u32 i, keep_trying = 1;
3591 svm_msg_q_msg_t msg;
3595 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3598 return VPPCOM_EFAULT;
3602 vcl_session_t *session;
3604 /* Dequeue all events and drop all unhandled io events */
3605 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3607 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3608 vcl_handle_mq_event (wrk, e);
3609 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3611 vec_reset_length (wrk->unhandled_evts_vector);
3613 for (i = 0; i < n_sids; i++)
3615 session = vcl_session_get (wrk, vp[i].sh);
3618 vp[i].revents = POLLHUP;
3625 if (POLLIN & vp[i].events)
3627 rv = vcl_session_read_ready (session);
3630 vp[i].revents |= POLLIN;
3637 case VPPCOM_ECONNRESET:
3638 vp[i].revents = POLLHUP;
3642 vp[i].revents = POLLERR;
3649 if (POLLOUT & vp[i].events)
3651 rv = vcl_session_write_ready (session);
3654 vp[i].revents |= POLLOUT;
3661 case VPPCOM_ECONNRESET:
3662 vp[i].revents = POLLHUP;
3666 vp[i].revents = POLLERR;
3673 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3675 vp[i].revents = POLLNVAL;
3679 if (wait_for_time != -1)
3680 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3682 while ((num_ev == 0) && keep_trying);
3688 vppcom_mq_epoll_fd (void)
3690 vcl_worker_t *wrk = vcl_worker_get_current ();
3691 return wrk->mqs_epfd;
3695 vppcom_session_index (vcl_session_handle_t session_handle)
3697 return session_handle & 0xFFFFFF;
3701 vppcom_session_worker (vcl_session_handle_t session_handle)
3703 return session_handle >> 24;
3707 vppcom_worker_register (void)
3713 if (!vcl_worker_alloc_and_init ())
3714 return VPPCOM_EEXIST;
3716 wrk = vcl_worker_get_current ();
3717 wrk_name = format (0, "%s-wrk-%u", vcm->app_name, wrk->wrk_index);
3719 rv = vppcom_connect_to_vpp ((char *) wrk_name);
3720 vec_free (wrk_name);
3723 return VPPCOM_EFAULT;
3725 if (vcl_worker_register_with_vpp ())
3726 return VPPCOM_EEXIST;
3732 vppcom_worker_unregister (void)
3734 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3735 vcl_set_worker_index (~0);
3739 vppcom_worker_index (void)
3741 return vcl_get_worker_index ();
3745 vppcom_worker_mqs_epfd (void)
3747 vcl_worker_t *wrk = vcl_worker_get_current ();
3748 if (!vcm->cfg.use_mq_eventfd)
3750 return wrk->mqs_epfd;
3754 vppcom_session_is_connectable_listener (uint32_t session_handle)
3756 vcl_session_t *session;
3757 vcl_worker_t *wrk = vcl_worker_get_current ();
3758 session = vcl_session_get_w_handle (wrk, session_handle);
3760 return VPPCOM_EBADFD;
3761 return vcl_session_is_connectable_listener (wrk, session);
3765 vppcom_session_listener (uint32_t session_handle)
3767 vcl_worker_t *wrk = vcl_worker_get_current ();
3768 vcl_session_t *listen_session, *session;
3769 session = vcl_session_get_w_handle (wrk, session_handle);
3771 return VPPCOM_EBADFD;
3772 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3773 return VPPCOM_EBADFD;
3774 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3775 if (!listen_session)
3776 return VPPCOM_EBADFD;
3777 return vcl_session_handle (listen_session);
3781 vppcom_session_n_accepted (uint32_t session_handle)
3783 vcl_worker_t *wrk = vcl_worker_get_current ();
3784 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3786 return VPPCOM_EBADFD;
3787 return session->n_accepted_sessions;
3791 * fd.io coding-style-patch-verification: ON
3794 * eval: (c-set-style "gnu")