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_cleanup_handler (vcl_worker_t * wrk, void *data)
718 session_cleanup_msg_t *msg;
719 vcl_session_t *session;
721 msg = (session_cleanup_msg_t *) data;
722 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
725 VDBG (0, "disconnect confirmed for unknown handle 0x%llx", msg->handle);
729 vcl_session_table_del_vpp_handle (wrk, msg->handle);
730 vcl_session_free (wrk, session);
734 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
736 session_req_worker_update_msg_t *msg;
739 msg = (session_req_worker_update_msg_t *) data;
740 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
744 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
748 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
750 session_worker_update_reply_msg_t *msg;
753 msg = (session_worker_update_reply_msg_t *) data;
754 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
757 VDBG (0, "unknown handle 0x%llx", msg->handle);
760 if (vcl_segment_is_not_mounted (wrk, msg->segment_handle))
762 clib_warning ("segment for session %u is not mounted!",
769 s->rx_fifo = uword_to_pointer (msg->rx_fifo, svm_fifo_t *);
770 s->tx_fifo = uword_to_pointer (msg->tx_fifo, svm_fifo_t *);
771 s->rx_fifo->client_session_index = s->session_index;
772 s->tx_fifo->client_session_index = s->session_index;
773 s->rx_fifo->client_thread_index = wrk->wrk_index;
774 s->tx_fifo->client_thread_index = wrk->wrk_index;
776 s->session_state = STATE_UPDATED;
778 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
779 s->vpp_handle, wrk->wrk_index);
783 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
785 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
786 session_app_add_segment_msg_t *msg;
790 msg = (session_app_add_segment_msg_t *) data;
794 vl_socket_client_recv_fd_msg2 (&wrk->bapi_sock_ctx, &fd, 1, 5);
795 seg_type = SSVM_SEGMENT_MEMFD;
798 segment_handle = msg->segment_handle;
799 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
801 clib_warning ("invalid segment handle");
805 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
808 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
812 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
817 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
819 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
820 vcl_segment_detach (msg->segment_handle);
821 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
825 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
827 session_disconnected_msg_t *disconnected_msg;
828 vcl_session_t *session;
830 switch (e->event_type)
832 case SESSION_IO_EVT_RX:
833 case SESSION_IO_EVT_TX:
834 session = vcl_session_get (wrk, e->session_index);
835 if (!session || !(session->session_state & STATE_OPEN))
837 vec_add1 (wrk->unhandled_evts_vector, *e);
839 case SESSION_CTRL_EVT_ACCEPTED:
840 vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
842 case SESSION_CTRL_EVT_CONNECTED:
843 vcl_session_connected_handler (wrk,
844 (session_connected_msg_t *) e->data);
846 case SESSION_CTRL_EVT_DISCONNECTED:
847 disconnected_msg = (session_disconnected_msg_t *) e->data;
848 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
851 VDBG (0, "disconnected session %u [0x%llx]", session->session_index,
852 session->vpp_handle);
854 case SESSION_CTRL_EVT_RESET:
855 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
857 case SESSION_CTRL_EVT_BOUND:
858 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
860 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
861 vcl_session_unlisten_reply_handler (wrk, e->data);
863 case SESSION_CTRL_EVT_MIGRATED:
864 vcl_session_migrated_handler (wrk, e->data);
866 case SESSION_CTRL_EVT_CLEANUP:
867 vcl_session_cleanup_handler (wrk, e->data);
869 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
870 vcl_session_req_worker_update_handler (wrk, e->data);
872 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
873 vcl_session_worker_update_reply_handler (wrk, e->data);
875 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
876 vcl_session_app_add_segment_handler (wrk, e->data);
878 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
879 vcl_session_app_del_segment_handler (wrk, e->data);
882 clib_warning ("unhandled %u", e->event_type);
888 vppcom_wait_for_session_state_change (u32 session_index,
889 vcl_session_state_t state,
892 vcl_worker_t *wrk = vcl_worker_get_current ();
893 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
894 vcl_session_t *volatile session;
900 session = vcl_session_get (wrk, session_index);
901 if (PREDICT_FALSE (!session))
903 return VPPCOM_EBADFD;
905 if (session->session_state & state)
909 if (session->session_state & STATE_FAILED)
911 return VPPCOM_ECONNREFUSED;
914 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
919 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
920 vcl_handle_mq_event (wrk, e);
921 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
923 while (clib_time_now (&wrk->clib_time) < timeout);
925 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
926 vppcom_session_state_str (state));
927 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
929 return VPPCOM_ETIMEDOUT;
933 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
935 vcl_session_state_t state;
939 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
942 vec_foreach (sip, wrk->pending_session_wrk_updates)
944 s = vcl_session_get (wrk, *sip);
945 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
946 state = s->session_state;
947 vppcom_wait_for_session_state_change (s->session_index, STATE_UPDATED, 5);
948 s->session_state = state;
950 vec_reset_length (wrk->pending_session_wrk_updates);
954 vcl_flush_mq_events (void)
956 vcl_worker_t *wrk = vcl_worker_get_current ();
957 svm_msg_q_msg_t *msg;
962 mq = wrk->app_event_queue;
964 vcl_mq_dequeue_batch (wrk, mq, ~0);
965 svm_msg_q_unlock (mq);
967 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
969 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
970 e = svm_msg_q_msg_data (mq, msg);
971 vcl_handle_mq_event (wrk, e);
972 svm_msg_q_free_msg (mq, msg);
974 vec_reset_length (wrk->mq_msg_vector);
975 vcl_handle_pending_wrk_updates (wrk);
979 vppcom_app_session_enable (void)
983 if (vcm->app_state != STATE_APP_ENABLED)
985 vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
986 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
987 if (PREDICT_FALSE (rv))
989 VDBG (0, "application session enable timed out! returning %d (%s)",
990 rv, vppcom_retval_str (rv));
998 vppcom_app_attach (void)
1002 vppcom_app_send_attach ();
1003 rv = vcl_wait_for_app_state_change (STATE_APP_ATTACHED);
1004 if (PREDICT_FALSE (rv))
1006 VDBG (0, "application attach timed out! returning %d (%s)", rv,
1007 vppcom_retval_str (rv));
1015 vppcom_session_unbind (u32 session_handle)
1017 vcl_worker_t *wrk = vcl_worker_get_current ();
1018 session_accepted_msg_t *accepted_msg;
1019 vcl_session_t *session = 0;
1020 vcl_session_msg_t *evt;
1022 session = vcl_session_get_w_handle (wrk, session_handle);
1024 return VPPCOM_EBADFD;
1026 /* Flush pending accept events, if any */
1027 while (clib_fifo_elts (session->accept_evts_fifo))
1029 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1030 accepted_msg = &evt->accepted_msg;
1031 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1032 vcl_send_session_accepted_reply (session->vpp_evt_q,
1033 accepted_msg->context,
1034 session->vpp_handle, -1);
1036 clib_fifo_free (session->accept_evts_fifo);
1038 vcl_send_session_unlisten (wrk, session);
1040 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1041 session->vpp_handle);
1042 vcl_evt (VCL_EVT_UNBIND, session);
1044 session->vpp_handle = ~0;
1045 session->session_state = STATE_DISCONNECT;
1051 vppcom_session_disconnect (u32 session_handle)
1053 vcl_worker_t *wrk = vcl_worker_get_current ();
1054 svm_msg_q_t *vpp_evt_q;
1055 vcl_session_t *session, *listen_session;
1056 vcl_session_state_t state;
1059 session = vcl_session_get_w_handle (wrk, session_handle);
1061 return VPPCOM_EBADFD;
1063 vpp_handle = session->vpp_handle;
1064 state = session->session_state;
1066 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
1067 vpp_handle, state, vppcom_session_state_str (state));
1069 if (PREDICT_FALSE (state & STATE_LISTEN))
1071 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
1072 return VPPCOM_EBADFD;
1075 if (state & STATE_VPP_CLOSING)
1077 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
1078 vcl_send_session_disconnected_reply (vpp_evt_q, wrk->my_client_index,
1080 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
1081 session->session_index, vpp_handle);
1085 VDBG (1, "session %u [0x%llx]: sending disconnect...",
1086 session->session_index, vpp_handle);
1087 vcl_send_session_disconnect (wrk, session);
1090 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
1092 listen_session = vcl_session_get (wrk, session->listener_index);
1093 listen_session->n_accepted_sessions--;
1102 * Notify vpp of the disconnect and mark the worker as free. If we're the
1103 * last worker, do a full cleanup otherwise, since we're probably a forked
1104 * child, avoid syscalls as much as possible. We might've lost privileges.
1107 vppcom_app_exit (void)
1109 if (!pool_elts (vcm->workers))
1111 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1112 vcl_set_worker_index (~0);
1113 vcl_elog_stop (vcm);
1117 * VPPCOM Public API functions
1120 vppcom_app_create (char *app_name)
1122 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1127 VDBG (1, "already initialized");
1128 return VPPCOM_EEXIST;
1132 vppcom_cfg (&vcm->cfg);
1133 vcl_cfg = &vcm->cfg;
1135 vcm->main_cpu = pthread_self ();
1136 vcm->main_pid = getpid ();
1137 vcm->app_name = format (0, "%s", app_name);
1138 vppcom_init_error_string_table ();
1139 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1140 20 /* timeout in secs */ );
1141 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1142 clib_spinlock_init (&vcm->workers_lock);
1143 clib_rwlock_init (&vcm->segment_table_lock);
1144 atexit (vppcom_app_exit);
1146 /* Allocate default worker */
1147 vcl_worker_alloc_and_init ();
1149 /* API hookup and connect to VPP */
1150 vcl_elog_init (vcm);
1151 vcm->app_state = STATE_APP_START;
1152 rv = vppcom_connect_to_vpp (app_name);
1155 VERR ("couldn't connect to VPP!");
1158 VDBG (0, "sending session enable");
1159 rv = vppcom_app_session_enable ();
1162 VERR ("vppcom_app_session_enable() failed!");
1166 VDBG (0, "sending app attach");
1167 rv = vppcom_app_attach ();
1170 VERR ("vppcom_app_attach() failed!");
1174 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1175 vcm->workers[0].my_client_index, vcm->workers[0].my_client_index);
1181 vppcom_app_destroy (void)
1184 f64 orig_app_timeout;
1186 if (!pool_elts (vcm->workers))
1189 vcl_evt (VCL_EVT_DETACH, vcm);
1191 if (pool_elts (vcm->workers) == 1)
1193 vcl_send_app_detach (vcl_worker_get_current ());
1194 orig_app_timeout = vcm->cfg.app_timeout;
1195 vcm->cfg.app_timeout = 2.0;
1196 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
1197 vcm->cfg.app_timeout = orig_app_timeout;
1198 if (PREDICT_FALSE (rv))
1199 VDBG (0, "application detach timed out! returning %d (%s)", rv,
1200 vppcom_retval_str (rv));
1201 vec_free (vcm->app_name);
1202 vcl_worker_cleanup (vcl_worker_get_current (), 0 /* notify vpp */ );
1206 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1209 vcl_set_worker_index (~0);
1210 vcl_elog_stop (vcm);
1211 vl_client_disconnect_from_vlib ();
1215 vppcom_session_create (u8 proto, u8 is_nonblocking)
1217 vcl_worker_t *wrk = vcl_worker_get_current ();
1218 vcl_session_t *session;
1220 session = vcl_session_alloc (wrk);
1222 session->session_type = proto;
1223 session->session_state = STATE_START;
1224 session->vpp_handle = ~0;
1225 session->is_dgram = vcl_proto_is_dgram (proto);
1228 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
1230 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1231 is_nonblocking, session_index);
1233 VDBG (0, "created session %u", session->session_index);
1235 return vcl_session_handle (session);
1239 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * session,
1240 vcl_session_handle_t sh, u8 do_disconnect)
1242 vcl_session_state_t state;
1243 u32 next_sh, vep_sh;
1248 is_vep = session->is_vep;
1249 next_sh = session->vep.next_sh;
1250 vep_sh = session->vep.vep_sh;
1251 state = session->session_state;
1252 vpp_handle = session->vpp_handle;
1254 VDBG (1, "session %u [0x%llx] closing", session->session_index, vpp_handle);
1258 while (next_sh != ~0)
1260 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1261 if (PREDICT_FALSE (rv < 0))
1262 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1263 " failed! rv %d (%s)", vpp_handle, next_sh, vep_sh, rv,
1264 vppcom_retval_str (rv));
1266 next_sh = session->vep.next_sh;
1271 if (session->is_vep_session)
1273 rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, sh, 0);
1275 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1276 "failed! rv %d (%s)", session->session_index, vpp_handle,
1277 vep_sh, rv, vppcom_retval_str (rv));
1282 VDBG (1, "session %u [0x%llx] disconnect skipped",
1283 session->session_index, vpp_handle);
1287 if (state & STATE_LISTEN)
1289 rv = vppcom_session_unbind (sh);
1290 if (PREDICT_FALSE (rv < 0))
1291 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1292 "rv %d (%s)", session->session_index, vpp_handle, rv,
1293 vppcom_retval_str (rv));
1296 else if ((state & STATE_OPEN)
1297 || (vcl_session_is_connectable_listener (wrk, session)))
1299 rv = vppcom_session_disconnect (sh);
1300 if (PREDICT_FALSE (rv < 0))
1301 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1302 " rv %d (%s)", session->session_index, vpp_handle,
1303 rv, vppcom_retval_str (rv));
1305 else if (state == STATE_DISCONNECT)
1307 svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, session);
1308 vcl_send_session_reset_reply (mq, wrk->my_client_index,
1309 session->vpp_handle, 0);
1312 /* Session is removed only after vpp confirms the disconnect */
1316 vcl_session_table_del_vpp_handle (wrk, vpp_handle);
1317 vcl_session_free (wrk, session);
1318 vcl_evt (VCL_EVT_CLOSE, session, rv);
1324 vppcom_session_close (uint32_t session_handle)
1326 vcl_worker_t *wrk = vcl_worker_get_current ();
1327 vcl_session_t *session;
1329 session = vcl_session_get_w_handle (wrk, session_handle);
1331 return VPPCOM_EBADFD;
1332 return vcl_session_cleanup (wrk, session, session_handle,
1333 1 /* do_disconnect */ );
1337 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1339 vcl_worker_t *wrk = vcl_worker_get_current ();
1340 vcl_session_t *session = 0;
1343 return VPPCOM_EINVAL;
1345 session = vcl_session_get_w_handle (wrk, session_handle);
1347 return VPPCOM_EBADFD;
1349 if (session->is_vep)
1351 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1352 session->session_index);
1353 return VPPCOM_EBADFD;
1356 session->transport.is_ip4 = ep->is_ip4;
1358 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1359 sizeof (ip4_address_t));
1361 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1362 sizeof (ip6_address_t));
1363 session->transport.lcl_port = ep->port;
1365 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1366 "proto %s", session->session_index, session_handle,
1367 session->transport.is_ip4 ? "IPv4" : "IPv6",
1368 format_ip46_address, &session->transport.lcl_ip,
1369 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1370 clib_net_to_host_u16 (session->transport.lcl_port),
1371 vppcom_proto_str (session->session_type));
1372 vcl_evt (VCL_EVT_BIND, session);
1374 if (session->session_type == VPPCOM_PROTO_UDP)
1375 vppcom_session_listen (session_handle, 10);
1381 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1383 vcl_worker_t *wrk = vcl_worker_get_current ();
1384 vcl_session_t *listen_session = 0;
1385 u64 listen_vpp_handle;
1388 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1389 if (!listen_session || listen_session->is_vep)
1390 return VPPCOM_EBADFD;
1392 if (q_len == 0 || q_len == ~0)
1393 q_len = vcm->cfg.listen_queue_size;
1395 listen_vpp_handle = listen_session->vpp_handle;
1396 if (listen_session->session_state & STATE_LISTEN)
1398 VDBG (0, "session %u [0x%llx]: already in listen state!",
1399 listen_sh, listen_vpp_handle);
1403 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1406 * Send listen request to vpp and wait for reply
1408 vcl_send_session_listen (wrk, listen_session);
1409 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1411 vcm->cfg.session_timeout);
1413 if (PREDICT_FALSE (rv))
1415 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1416 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1417 listen_sh, listen_session->vpp_handle, rv,
1418 vppcom_retval_str (rv));
1426 vppcom_session_tls_add_cert (uint32_t session_handle, char *cert,
1430 vcl_worker_t *wrk = vcl_worker_get_current ();
1431 vcl_session_t *session = 0;
1433 session = vcl_session_get_w_handle (wrk, session_handle);
1435 return VPPCOM_EBADFD;
1437 if (cert_len == 0 || cert_len == ~0)
1438 return VPPCOM_EBADFD;
1441 * Send listen request to vpp and wait for reply
1443 vppcom_send_application_tls_cert_add (session, cert, cert_len);
1444 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1445 vcl_wait_for_app_state_change (STATE_APP_READY);
1451 vppcom_session_tls_add_key (uint32_t session_handle, char *key,
1455 vcl_worker_t *wrk = vcl_worker_get_current ();
1456 vcl_session_t *session = 0;
1458 session = vcl_session_get_w_handle (wrk, session_handle);
1460 return VPPCOM_EBADFD;
1462 if (key_len == 0 || key_len == ~0)
1463 return VPPCOM_EBADFD;
1465 vppcom_send_application_tls_key_add (session, key, key_len);
1466 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1467 vcl_wait_for_app_state_change (STATE_APP_READY);
1472 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1476 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1478 return VPPCOM_EBADFD;
1481 if ((ls->session_state != STATE_LISTEN)
1482 && (!vcl_session_is_connectable_listener (wrk, ls)))
1485 "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1486 " (%s)", ls->vpp_handle, ls->session_state,
1487 vppcom_session_state_str (ls->session_state));
1488 return VPPCOM_EBADFD;
1494 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1496 if (!strcmp (proto_str, "TCP"))
1497 *proto = VPPCOM_PROTO_TCP;
1498 else if (!strcmp (proto_str, "tcp"))
1499 *proto = VPPCOM_PROTO_TCP;
1500 else if (!strcmp (proto_str, "UDP"))
1501 *proto = VPPCOM_PROTO_UDP;
1502 else if (!strcmp (proto_str, "udp"))
1503 *proto = VPPCOM_PROTO_UDP;
1504 else if (!strcmp (proto_str, "UDPC"))
1505 *proto = VPPCOM_PROTO_UDPC;
1506 else if (!strcmp (proto_str, "udpc"))
1507 *proto = VPPCOM_PROTO_UDPC;
1508 else if (!strcmp (proto_str, "SCTP"))
1509 *proto = VPPCOM_PROTO_SCTP;
1510 else if (!strcmp (proto_str, "sctp"))
1511 *proto = VPPCOM_PROTO_SCTP;
1512 else if (!strcmp (proto_str, "TLS"))
1513 *proto = VPPCOM_PROTO_TLS;
1514 else if (!strcmp (proto_str, "tls"))
1515 *proto = VPPCOM_PROTO_TLS;
1516 else if (!strcmp (proto_str, "QUIC"))
1517 *proto = VPPCOM_PROTO_QUIC;
1518 else if (!strcmp (proto_str, "quic"))
1519 *proto = VPPCOM_PROTO_QUIC;
1526 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1529 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1530 vcl_worker_t *wrk = vcl_worker_get_current ();
1531 session_accepted_msg_t accepted_msg;
1532 vcl_session_t *listen_session = 0;
1533 vcl_session_t *client_session = 0;
1534 vcl_session_msg_t *evt;
1535 svm_msg_q_msg_t msg;
1540 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1541 if (!listen_session)
1542 return VPPCOM_EBADFD;
1544 listen_session_index = listen_session->session_index;
1545 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1548 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1550 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1551 accept_flags = evt->flags;
1552 accepted_msg = evt->accepted_msg;
1556 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1557 VCL_SESS_ATTR_NONBLOCK);
1560 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1561 return VPPCOM_EAGAIN;
1563 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1564 return VPPCOM_EAGAIN;
1566 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1567 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1569 vcl_handle_mq_event (wrk, e);
1570 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1573 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1574 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1580 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1581 listen_session_index);
1582 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1583 return VPPCOM_ECONNABORTED;
1585 listen_session = vcl_session_get (wrk, listen_session_index);
1586 client_session = vcl_session_get (wrk, client_session_index);
1588 if (flags & O_NONBLOCK)
1589 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1591 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1592 " flags %d, is_nonblocking %u", listen_session->session_index,
1593 listen_session->vpp_handle, client_session_index,
1594 client_session->vpp_handle, flags,
1595 VCL_SESS_ATTR_TEST (client_session->attr, VCL_SESS_ATTR_NONBLOCK));
1599 ep->is_ip4 = client_session->transport.is_ip4;
1600 ep->port = client_session->transport.rmt_port;
1601 if (client_session->transport.is_ip4)
1602 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1603 sizeof (ip4_address_t));
1605 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1606 sizeof (ip6_address_t));
1609 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1610 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1611 client_session_index, client_session->vpp_handle,
1612 format_ip46_address, &client_session->transport.rmt_ip,
1613 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1614 clib_net_to_host_u16 (client_session->transport.rmt_port),
1615 format_ip46_address, &client_session->transport.lcl_ip,
1616 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1617 clib_net_to_host_u16 (client_session->transport.lcl_port));
1618 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1619 client_session_index);
1622 * Session might have been closed already
1626 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1627 client_session->session_state = STATE_VPP_CLOSING;
1628 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1629 client_session->session_state = STATE_DISCONNECT;
1631 return vcl_session_handle (client_session);
1635 vcl_ip_copy_from_ep (ip46_address_t * ip, vppcom_endpt_t * ep)
1638 clib_memcpy_fast (&ip->ip4, ep->ip, sizeof (ip4_address_t));
1640 clib_memcpy_fast (&ip->ip6, ep->ip, sizeof (ip6_address_t));
1644 vcl_ip_copy_to_ep (ip46_address_t * ip, vppcom_endpt_t * ep, u8 is_ip4)
1646 ep->is_ip4 = is_ip4;
1648 clib_memcpy_fast (ep->ip, &ip->ip4, sizeof (ip4_address_t));
1650 clib_memcpy_fast (ep->ip, &ip->ip6, sizeof (ip6_address_t));
1654 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1656 vcl_worker_t *wrk = vcl_worker_get_current ();
1657 vcl_session_t *session = 0;
1661 session = vcl_session_get_w_handle (wrk, session_handle);
1663 return VPPCOM_EBADFD;
1664 session_index = session->session_index;
1666 if (PREDICT_FALSE (session->is_vep))
1668 VDBG (0, "ERROR: cannot connect epoll session %u!",
1669 session->session_index);
1670 return VPPCOM_EBADFD;
1673 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1675 VDBG (0, "session handle %u [0x%llx]: session already "
1676 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1677 session_handle, session->vpp_handle,
1678 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1679 &session->transport.rmt_ip, session->transport.is_ip4 ?
1680 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1681 clib_net_to_host_u16 (session->transport.rmt_port),
1682 vppcom_proto_str (session->session_type), session->session_state,
1683 vppcom_session_state_str (session->session_state));
1687 session->transport.is_ip4 = server_ep->is_ip4;
1688 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1689 session->transport.rmt_port = server_ep->port;
1690 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1692 VDBG (0, "session handle %u: connecting to server %s %U "
1693 "port %d proto %s", session_handle,
1694 session->transport.is_ip4 ? "IPv4" : "IPv6",
1695 format_ip46_address,
1696 &session->transport.rmt_ip, session->transport.is_ip4 ?
1697 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1698 clib_net_to_host_u16 (session->transport.rmt_port),
1699 vppcom_proto_str (session->session_type));
1701 vcl_send_session_connect (wrk, session);
1703 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK))
1704 return VPPCOM_EINPROGRESS;
1707 * Wait for reply from vpp if blocking
1709 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1710 vcm->cfg.session_timeout);
1712 session = vcl_session_get (wrk, session_index);
1713 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1714 session->vpp_handle, rv ? "failed" : "succeeded");
1720 vppcom_session_stream_connect (uint32_t session_handle,
1721 uint32_t parent_session_handle)
1723 vcl_worker_t *wrk = vcl_worker_get_current ();
1724 vcl_session_t *session, *parent_session;
1725 u32 session_index, parent_session_index;
1728 session = vcl_session_get_w_handle (wrk, session_handle);
1730 return VPPCOM_EBADFD;
1731 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1732 if (!parent_session)
1733 return VPPCOM_EBADFD;
1735 session_index = session->session_index;
1736 parent_session_index = parent_session->session_index;
1737 if (PREDICT_FALSE (session->is_vep))
1739 VDBG (0, "ERROR: cannot connect epoll session %u!",
1740 session->session_index);
1741 return VPPCOM_EBADFD;
1744 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1746 VDBG (0, "session handle %u [0x%llx]: session already "
1747 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1748 session_handle, session->vpp_handle,
1749 parent_session_handle, parent_session->vpp_handle,
1750 vppcom_proto_str (session->session_type), session->session_state,
1751 vppcom_session_state_str (session->session_state));
1755 /* Connect to quic session specifics */
1756 session->transport.is_ip4 = parent_session->transport.is_ip4;
1757 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1758 session->transport.rmt_port = 0;
1759 session->parent_handle = parent_session->vpp_handle;
1761 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1762 session_handle, parent_session_handle, parent_session->vpp_handle);
1765 * Send connect request and wait for reply from vpp
1767 vcl_send_session_connect (wrk, session);
1768 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1769 vcm->cfg.session_timeout);
1771 session->listener_index = parent_session_index;
1772 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1774 parent_session->n_accepted_sessions++;
1776 session = vcl_session_get (wrk, session_index);
1777 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1778 session->vpp_handle, rv ? "failed" : "succeeded");
1784 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1786 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1790 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1793 vcl_worker_t *wrk = vcl_worker_get_current ();
1794 int n_read = 0, is_nonblocking;
1795 vcl_session_t *s = 0;
1796 svm_fifo_t *rx_fifo;
1797 svm_msg_q_msg_t msg;
1802 if (PREDICT_FALSE (!buf))
1803 return VPPCOM_EINVAL;
1805 s = vcl_session_get_w_handle (wrk, session_handle);
1806 if (PREDICT_FALSE (!s || s->is_vep))
1807 return VPPCOM_EBADFD;
1809 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1811 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1812 s->session_index, s->vpp_handle, s->session_state,
1813 vppcom_session_state_str (s->session_state));
1814 return vcl_session_closed_error (s);
1817 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1818 is_ct = vcl_session_is_ct (s);
1819 mq = wrk->app_event_queue;
1820 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1823 if (svm_fifo_is_empty_cons (rx_fifo))
1827 if (vcl_session_is_closing (s))
1828 return vcl_session_closing_error (s);
1829 svm_fifo_unset_event (s->rx_fifo);
1830 return VPPCOM_EWOULDBLOCK;
1832 while (svm_fifo_is_empty_cons (rx_fifo))
1834 if (vcl_session_is_closing (s))
1835 return vcl_session_closing_error (s);
1837 svm_fifo_unset_event (s->rx_fifo);
1838 svm_msg_q_lock (mq);
1839 if (svm_msg_q_is_empty (mq))
1840 svm_msg_q_wait (mq);
1842 svm_msg_q_sub_w_lock (mq, &msg);
1843 e = svm_msg_q_msg_data (mq, &msg);
1844 svm_msg_q_unlock (mq);
1845 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1846 vcl_handle_mq_event (wrk, e);
1847 svm_msg_q_free_msg (mq, &msg);
1852 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1854 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1856 if (svm_fifo_is_empty_cons (rx_fifo))
1857 svm_fifo_unset_event (s->rx_fifo);
1859 /* Cut-through sessions might request tx notifications on rx fifos */
1860 if (PREDICT_FALSE (rx_fifo->want_deq_ntf))
1862 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1863 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1864 svm_fifo_reset_has_deq_ntf (s->rx_fifo);
1867 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1868 s->vpp_handle, n_read, rx_fifo);
1874 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1876 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1880 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1882 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1886 vppcom_session_read_segments (uint32_t session_handle,
1887 vppcom_data_segments_t ds)
1889 vcl_worker_t *wrk = vcl_worker_get_current ();
1890 int n_read = 0, is_nonblocking;
1891 vcl_session_t *s = 0;
1892 svm_fifo_t *rx_fifo;
1893 svm_msg_q_msg_t msg;
1898 s = vcl_session_get_w_handle (wrk, session_handle);
1899 if (PREDICT_FALSE (!s || s->is_vep))
1900 return VPPCOM_EBADFD;
1902 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1903 return vcl_session_closed_error (s);
1905 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1906 is_ct = vcl_session_is_ct (s);
1907 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1908 rx_fifo = s->rx_fifo;
1912 svm_fifo_unset_event (s->rx_fifo);
1914 if (svm_fifo_is_empty_cons (rx_fifo))
1918 svm_fifo_unset_event (rx_fifo);
1919 return VPPCOM_EWOULDBLOCK;
1921 while (svm_fifo_is_empty_cons (rx_fifo))
1923 if (vcl_session_is_closing (s))
1924 return vcl_session_closing_error (s);
1926 svm_fifo_unset_event (rx_fifo);
1927 svm_msg_q_lock (mq);
1928 if (svm_msg_q_is_empty (mq))
1929 svm_msg_q_wait (mq);
1931 svm_msg_q_sub_w_lock (mq, &msg);
1932 e = svm_msg_q_msg_data (mq, &msg);
1933 svm_msg_q_unlock (mq);
1934 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1935 vcl_handle_mq_event (wrk, e);
1936 svm_msg_q_free_msg (mq, &msg);
1940 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_seg_t *) ds);
1941 svm_fifo_unset_event (rx_fifo);
1947 vppcom_session_free_segments (uint32_t session_handle,
1948 vppcom_data_segments_t ds)
1950 vcl_worker_t *wrk = vcl_worker_get_current ();
1953 s = vcl_session_get_w_handle (wrk, session_handle);
1954 if (PREDICT_FALSE (!s || s->is_vep))
1957 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_seg_t *) ds);
1961 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
1963 u32 first_copy = clib_min (ds[0].len, max_bytes);
1964 clib_memcpy_fast (buf, ds[0].data, first_copy);
1965 if (first_copy < max_bytes)
1967 clib_memcpy_fast (buf + first_copy, ds[1].data,
1968 clib_min (ds[1].len, max_bytes - first_copy));
1974 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1976 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
1980 vppcom_session_write_inline (uint32_t session_handle, void *buf, size_t n,
1983 vcl_worker_t *wrk = vcl_worker_get_current ();
1984 int n_write, is_nonblocking;
1985 vcl_session_t *s = 0;
1986 session_evt_type_t et;
1987 svm_msg_q_msg_t msg;
1988 svm_fifo_t *tx_fifo;
1993 if (PREDICT_FALSE (!buf || n == 0))
1994 return VPPCOM_EINVAL;
1996 s = vcl_session_get_w_handle (wrk, session_handle);
1997 if (PREDICT_FALSE (!s))
1998 return VPPCOM_EBADFD;
2000 if (PREDICT_FALSE (s->is_vep))
2002 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2003 " session!", s->session_index, s->vpp_handle);
2004 return VPPCOM_EBADFD;
2007 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2009 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2010 s->session_index, s->vpp_handle, s->session_state,
2011 vppcom_session_state_str (s->session_state));
2012 return vcl_session_closed_error (s);;
2015 is_ct = vcl_session_is_ct (s);
2016 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2017 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
2019 mq = wrk->app_event_queue;
2020 if (svm_fifo_is_full_prod (tx_fifo))
2024 return VPPCOM_EWOULDBLOCK;
2026 while (svm_fifo_is_full_prod (tx_fifo))
2028 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2029 if (vcl_session_is_closing (s))
2030 return vcl_session_closing_error (s);
2031 svm_msg_q_lock (mq);
2032 if (svm_msg_q_is_empty (mq))
2033 svm_msg_q_wait (mq);
2035 svm_msg_q_sub_w_lock (mq, &msg);
2036 e = svm_msg_q_msg_data (mq, &msg);
2037 svm_msg_q_unlock (mq);
2039 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
2040 vcl_handle_mq_event (wrk, e);
2041 svm_msg_q_free_msg (mq, &msg);
2045 et = SESSION_IO_EVT_TX;
2046 if (is_flush && !is_ct)
2047 et = SESSION_IO_EVT_TX_FLUSH;
2050 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2051 s->vpp_evt_q, buf, n, et,
2052 0 /* do_evt */ , SVM_Q_WAIT);
2054 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2055 0 /* do_evt */ , SVM_Q_WAIT);
2057 if (svm_fifo_set_event (s->tx_fifo))
2058 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
2061 ASSERT (n_write > 0);
2063 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2064 s->vpp_handle, n_write);
2070 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2072 return vppcom_session_write_inline (session_handle, buf, n,
2077 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2079 return vppcom_session_write_inline (session_handle, buf, n,
2083 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2084 if (PREDICT_FALSE (!_s->rx_fifo)) \
2086 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2088 if (!vcl_session_is_ct (_s)) \
2090 svm_fifo_unset_event (_s->rx_fifo); \
2091 if (svm_fifo_is_empty (_s->rx_fifo)) \
2094 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2096 svm_fifo_unset_event (_s->ct_rx_fifo); \
2097 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2103 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2104 unsigned long n_bits, unsigned long *read_map,
2105 unsigned long *write_map,
2106 unsigned long *except_map, u32 * bits_set)
2108 session_disconnected_msg_t *disconnected_msg;
2109 session_connected_msg_t *connected_msg;
2110 vcl_session_t *session;
2113 switch (e->event_type)
2115 case SESSION_IO_EVT_RX:
2116 sid = e->session_index;
2117 session = vcl_session_get (wrk, sid);
2120 vcl_fifo_rx_evt_valid_or_break (session);
2121 if (sid < n_bits && read_map)
2123 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2127 case SESSION_IO_EVT_TX:
2128 sid = e->session_index;
2129 session = vcl_session_get (wrk, sid);
2132 if (sid < n_bits && write_map)
2134 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2138 case SESSION_CTRL_EVT_ACCEPTED:
2139 session = vcl_session_accepted (wrk,
2140 (session_accepted_msg_t *) e->data);
2143 sid = session->session_index;
2144 if (sid < n_bits && read_map)
2146 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2150 case SESSION_CTRL_EVT_CONNECTED:
2151 connected_msg = (session_connected_msg_t *) e->data;
2152 sid = vcl_session_connected_handler (wrk, connected_msg);
2153 if (sid == VCL_INVALID_SESSION_INDEX)
2155 if (sid < n_bits && write_map)
2157 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2161 case SESSION_CTRL_EVT_DISCONNECTED:
2162 disconnected_msg = (session_disconnected_msg_t *) e->data;
2163 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2166 sid = session->session_index;
2167 if (sid < n_bits && except_map)
2169 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2173 case SESSION_CTRL_EVT_RESET:
2174 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2175 if (sid < n_bits && except_map)
2177 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2181 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2182 vcl_session_unlisten_reply_handler (wrk, e->data);
2184 case SESSION_CTRL_EVT_MIGRATED:
2185 vcl_session_migrated_handler (wrk, e->data);
2187 case SESSION_CTRL_EVT_CLEANUP:
2188 vcl_session_cleanup_handler (wrk, e->data);
2190 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2191 vcl_session_worker_update_reply_handler (wrk, e->data);
2193 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2194 vcl_session_req_worker_update_handler (wrk, e->data);
2196 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2197 vcl_session_app_add_segment_handler (wrk, e->data);
2199 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2200 vcl_session_app_del_segment_handler (wrk, e->data);
2203 clib_warning ("unhandled: %u", e->event_type);
2209 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2210 unsigned long n_bits, unsigned long *read_map,
2211 unsigned long *write_map, unsigned long *except_map,
2212 double time_to_wait, u32 * bits_set)
2214 svm_msg_q_msg_t *msg;
2218 svm_msg_q_lock (mq);
2219 if (svm_msg_q_is_empty (mq))
2223 svm_msg_q_unlock (mq);
2229 svm_msg_q_unlock (mq);
2232 else if (time_to_wait < 0)
2234 svm_msg_q_wait (mq);
2238 if (svm_msg_q_timedwait (mq, time_to_wait))
2240 svm_msg_q_unlock (mq);
2245 vcl_mq_dequeue_batch (wrk, mq, ~0);
2246 svm_msg_q_unlock (mq);
2248 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2250 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2251 e = svm_msg_q_msg_data (mq, msg);
2252 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2253 except_map, bits_set);
2254 svm_msg_q_free_msg (mq, msg);
2256 vec_reset_length (wrk->mq_msg_vector);
2257 vcl_handle_pending_wrk_updates (wrk);
2262 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2263 vcl_si_set * read_map, vcl_si_set * write_map,
2264 vcl_si_set * except_map, double time_to_wait,
2267 double wait = 0, start = 0;
2271 wait = time_to_wait;
2272 start = clib_time_now (&wrk->clib_time);
2277 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2278 write_map, except_map, wait, bits_set);
2284 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2292 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2293 vcl_si_set * read_map, vcl_si_set * write_map,
2294 vcl_si_set * except_map, double time_to_wait,
2297 vcl_mq_evt_conn_t *mqc;
2298 int __clib_unused n_read;
2302 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2303 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2304 vec_len (wrk->mq_events), time_to_wait);
2305 for (i = 0; i < n_mq_evts; i++)
2307 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2308 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2309 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2310 except_map, 0, bits_set);
2313 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2317 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2318 vcl_si_set * except_map, double time_to_wait)
2320 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2321 vcl_worker_t *wrk = vcl_worker_get_current ();
2322 vcl_session_t *session = 0;
2325 if (n_bits && read_map)
2327 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2328 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2329 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2330 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2332 if (n_bits && write_map)
2334 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2335 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2336 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2337 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2339 if (n_bits && except_map)
2341 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2342 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2343 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2344 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2354 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2355 if (!(session = vcl_session_get (wrk, sid)))
2357 if (except_map && sid < minbits)
2358 clib_bitmap_set_no_check (except_map, sid, 1);
2362 rv = svm_fifo_is_full_prod (session->tx_fifo);
2365 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2369 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2376 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2377 if (!(session = vcl_session_get (wrk, sid)))
2379 if (except_map && sid < minbits)
2380 clib_bitmap_set_no_check (except_map, sid, 1);
2384 rv = vcl_session_read_ready (session);
2387 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2395 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2397 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2398 read_map, write_map, except_map, &bits_set);
2400 vec_reset_length (wrk->unhandled_evts_vector);
2402 if (vcm->cfg.use_mq_eventfd)
2403 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2404 time_to_wait, &bits_set);
2406 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2407 time_to_wait, &bits_set);
2413 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2415 vcl_session_t *session;
2416 vppcom_epoll_t *vep;
2417 u32 sh = vep_handle;
2419 if (VPPCOM_DEBUG <= 2)
2422 session = vcl_session_get_w_handle (wrk, vep_handle);
2423 if (PREDICT_FALSE (!session))
2425 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2428 if (PREDICT_FALSE (!session->is_vep))
2430 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2433 vep = &session->vep;
2434 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2437 " is_vep_session = %u\n"
2438 " next_sh = 0x%x (%u)\n"
2439 "}\n", vep_handle, session->is_vep, session->is_vep_session,
2440 vep->next_sh, vep->next_sh);
2442 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2444 session = vcl_session_get_w_handle (wrk, sh);
2445 if (PREDICT_FALSE (!session))
2447 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2450 if (PREDICT_FALSE (session->is_vep))
2452 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2454 else if (PREDICT_FALSE (!session->is_vep_session))
2456 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2459 vep = &session->vep;
2460 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2461 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2462 sh, session->vep.vep_sh, vep_handle);
2463 if (session->is_vep_session)
2465 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2467 " next_sh = 0x%x (%u)\n"
2468 " prev_sh = 0x%x (%u)\n"
2469 " vep_sh = 0x%x (%u)\n"
2470 " ev.events = 0x%x\n"
2471 " ev.data.u64 = 0x%llx\n"
2474 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2475 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2476 vep->ev.data.u64, vep->et_mask);
2481 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2485 vppcom_epoll_create (void)
2487 vcl_worker_t *wrk = vcl_worker_get_current ();
2488 vcl_session_t *vep_session;
2490 vep_session = vcl_session_alloc (wrk);
2492 vep_session->is_vep = 1;
2493 vep_session->vep.vep_sh = ~0;
2494 vep_session->vep.next_sh = ~0;
2495 vep_session->vep.prev_sh = ~0;
2496 vep_session->vpp_handle = ~0;
2498 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2499 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2501 return vcl_session_handle (vep_session);
2505 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2506 struct epoll_event *event)
2508 vcl_worker_t *wrk = vcl_worker_get_current ();
2509 vcl_session_t *vep_session;
2510 vcl_session_t *session;
2513 if (vep_handle == session_handle)
2515 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2516 return VPPCOM_EINVAL;
2519 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2520 if (PREDICT_FALSE (!vep_session))
2522 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2523 return VPPCOM_EBADFD;
2525 if (PREDICT_FALSE (!vep_session->is_vep))
2527 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2528 return VPPCOM_EINVAL;
2531 ASSERT (vep_session->vep.vep_sh == ~0);
2532 ASSERT (vep_session->vep.prev_sh == ~0);
2534 session = vcl_session_get_w_handle (wrk, session_handle);
2535 if (PREDICT_FALSE (!session))
2537 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2538 return VPPCOM_EBADFD;
2540 if (PREDICT_FALSE (session->is_vep))
2542 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2543 return VPPCOM_EINVAL;
2549 if (PREDICT_FALSE (!event))
2551 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2552 return VPPCOM_EINVAL;
2554 if (vep_session->vep.next_sh != ~0)
2556 vcl_session_t *next_session;
2557 next_session = vcl_session_get_w_handle (wrk,
2558 vep_session->vep.next_sh);
2559 if (PREDICT_FALSE (!next_session))
2561 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2562 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2563 return VPPCOM_EBADFD;
2565 ASSERT (next_session->vep.prev_sh == vep_handle);
2566 next_session->vep.prev_sh = session_handle;
2568 session->vep.next_sh = vep_session->vep.next_sh;
2569 session->vep.prev_sh = vep_handle;
2570 session->vep.vep_sh = vep_handle;
2571 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2572 session->vep.ev = *event;
2573 session->is_vep = 0;
2574 session->is_vep_session = 1;
2575 vep_session->vep.next_sh = session_handle;
2577 if (session->tx_fifo)
2578 svm_fifo_add_want_deq_ntf (session->tx_fifo,
2579 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2581 /* Generate EPOLLOUT if tx fifo not full */
2582 if ((event->events & EPOLLOUT) &&
2583 (vcl_session_write_ready (session) > 0))
2585 session_event_t e = { 0 };
2586 e.event_type = SESSION_IO_EVT_TX;
2587 e.session_index = session->session_index;
2588 vec_add1 (wrk->unhandled_evts_vector, e);
2590 /* Generate EPOLLIN if rx fifo has data */
2591 if ((event->events & EPOLLIN) && (vcl_session_read_ready (session) > 0))
2593 session_event_t e = { 0 };
2594 e.event_type = SESSION_IO_EVT_RX;
2595 e.session_index = session->session_index;
2596 vec_add1 (wrk->unhandled_evts_vector, e);
2598 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2599 vep_handle, session_handle, event->events, event->data.u64);
2600 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2604 if (PREDICT_FALSE (!event))
2606 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2610 else if (PREDICT_FALSE (!session->is_vep_session))
2612 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2616 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2618 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2619 session_handle, session->vep.vep_sh, vep_handle);
2624 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2625 if ((event->events & EPOLLOUT) &&
2626 !(session->vep.ev.events & EPOLLOUT) &&
2627 (vcl_session_write_ready (session) > 0))
2629 session_event_t e = { 0 };
2630 e.event_type = SESSION_IO_EVT_TX;
2631 e.session_index = session->session_index;
2632 vec_add1 (wrk->unhandled_evts_vector, e);
2634 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2635 session->vep.ev = *event;
2636 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2637 vep_handle, session_handle, event->events, event->data.u64);
2641 if (PREDICT_FALSE (!session->is_vep_session))
2643 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2647 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2649 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2650 session_handle, session->vep.vep_sh, vep_handle);
2655 if (session->vep.prev_sh == vep_handle)
2656 vep_session->vep.next_sh = session->vep.next_sh;
2659 vcl_session_t *prev_session;
2660 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2661 if (PREDICT_FALSE (!prev_session))
2663 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2664 session->vep.prev_sh, session_handle);
2665 return VPPCOM_EBADFD;
2667 ASSERT (prev_session->vep.next_sh == session_handle);
2668 prev_session->vep.next_sh = session->vep.next_sh;
2670 if (session->vep.next_sh != ~0)
2672 vcl_session_t *next_session;
2673 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2674 if (PREDICT_FALSE (!next_session))
2676 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2677 session->vep.next_sh, session_handle);
2678 return VPPCOM_EBADFD;
2680 ASSERT (next_session->vep.prev_sh == session_handle);
2681 next_session->vep.prev_sh = session->vep.prev_sh;
2684 memset (&session->vep, 0, sizeof (session->vep));
2685 session->vep.next_sh = ~0;
2686 session->vep.prev_sh = ~0;
2687 session->vep.vep_sh = ~0;
2688 session->is_vep_session = 0;
2690 if (session->tx_fifo)
2691 svm_fifo_del_want_deq_ntf (session->tx_fifo, SVM_FIFO_NO_DEQ_NOTIF);
2693 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2695 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2699 VDBG (0, "Invalid operation (%d)!", op);
2703 vep_verify_epoll_chain (wrk, vep_handle);
2710 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2711 struct epoll_event *events, u32 * num_ev)
2713 session_disconnected_msg_t *disconnected_msg;
2714 session_connected_msg_t *connected_msg;
2715 u32 sid = ~0, session_events;
2716 u64 session_evt_data = ~0;
2717 vcl_session_t *session;
2720 switch (e->event_type)
2722 case SESSION_IO_EVT_RX:
2723 sid = e->session_index;
2724 if (!(session = vcl_session_get (wrk, sid)))
2726 vcl_fifo_rx_evt_valid_or_break (session);
2727 session_events = session->vep.ev.events;
2728 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2731 events[*num_ev].events |= EPOLLIN;
2732 session_evt_data = session->vep.ev.data.u64;
2733 session->has_rx_evt = 1;
2735 case SESSION_IO_EVT_TX:
2736 sid = e->session_index;
2737 if (!(session = vcl_session_get (wrk, sid)))
2739 session_events = session->vep.ev.events;
2740 if (!(EPOLLOUT & session_events))
2743 events[*num_ev].events |= EPOLLOUT;
2744 session_evt_data = session->vep.ev.data.u64;
2745 svm_fifo_reset_has_deq_ntf (session->tx_fifo);
2747 case SESSION_CTRL_EVT_ACCEPTED:
2748 session = vcl_session_accepted (wrk,
2749 (session_accepted_msg_t *) e->data);
2753 session_events = session->vep.ev.events;
2754 if (!(EPOLLIN & session_events))
2758 events[*num_ev].events |= EPOLLIN;
2759 session_evt_data = session->vep.ev.data.u64;
2761 case SESSION_CTRL_EVT_CONNECTED:
2762 connected_msg = (session_connected_msg_t *) e->data;
2763 sid = vcl_session_connected_handler (wrk, connected_msg);
2764 /* Generate EPOLLOUT because there's no connected event */
2765 if (!(session = vcl_session_get (wrk, sid)))
2767 session_events = session->vep.ev.events;
2768 if (!(EPOLLOUT & session_events))
2771 events[*num_ev].events |= EPOLLOUT;
2772 session_evt_data = session->vep.ev.data.u64;
2773 if (session->session_state & STATE_FAILED)
2774 events[*num_ev].events |= EPOLLHUP;
2776 case SESSION_CTRL_EVT_DISCONNECTED:
2777 disconnected_msg = (session_disconnected_msg_t *) e->data;
2778 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2781 session_events = session->vep.ev.events;
2783 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2784 session_evt_data = session->vep.ev.data.u64;
2786 case SESSION_CTRL_EVT_RESET:
2787 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2788 if (!(session = vcl_session_get (wrk, sid)))
2790 session_events = session->vep.ev.events;
2792 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2793 session_evt_data = session->vep.ev.data.u64;
2795 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2796 vcl_session_unlisten_reply_handler (wrk, e->data);
2798 case SESSION_CTRL_EVT_MIGRATED:
2799 vcl_session_migrated_handler (wrk, e->data);
2801 case SESSION_CTRL_EVT_CLEANUP:
2802 vcl_session_cleanup_handler (wrk, e->data);
2804 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2805 vcl_session_req_worker_update_handler (wrk, e->data);
2807 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2808 vcl_session_worker_update_reply_handler (wrk, e->data);
2810 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2811 vcl_session_app_add_segment_handler (wrk, e->data);
2813 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2814 vcl_session_app_del_segment_handler (wrk, e->data);
2817 VDBG (0, "unhandled: %u", e->event_type);
2823 events[*num_ev].data.u64 = session_evt_data;
2824 if (EPOLLONESHOT & session_events)
2826 session = vcl_session_get (wrk, sid);
2827 session->vep.ev.events = 0;
2834 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2835 struct epoll_event *events, u32 maxevents,
2836 double wait_for_time, u32 * num_ev)
2838 svm_msg_q_msg_t *msg;
2842 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2843 goto handle_dequeued;
2845 svm_msg_q_lock (mq);
2846 if (svm_msg_q_is_empty (mq))
2850 svm_msg_q_unlock (mq);
2853 else if (wait_for_time < 0)
2855 svm_msg_q_wait (mq);
2859 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2861 svm_msg_q_unlock (mq);
2866 ASSERT (maxevents > *num_ev);
2867 vcl_mq_dequeue_batch (wrk, mq, maxevents - *num_ev);
2868 svm_msg_q_unlock (mq);
2871 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2873 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2874 e = svm_msg_q_msg_data (mq, msg);
2875 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2876 svm_msg_q_free_msg (mq, msg);
2878 vec_reset_length (wrk->mq_msg_vector);
2879 vcl_handle_pending_wrk_updates (wrk);
2884 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2885 int maxevents, u32 n_evts, double wait_for_time)
2887 double wait = 0, start = 0, now;
2891 wait = wait_for_time;
2892 start = clib_time_now (&wrk->clib_time);
2897 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2904 now = clib_time_now (&wrk->clib_time);
2905 wait -= now - start;
2914 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2915 int maxevents, u32 n_evts, double wait_for_time)
2917 vcl_mq_evt_conn_t *mqc;
2918 int __clib_unused n_read;
2922 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2924 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2925 vec_len (wrk->mq_events), wait_for_time);
2926 for (i = 0; i < n_mq_evts; i++)
2928 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2929 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2930 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
2932 if (!n_evts && n_mq_evts > 0)
2935 return (int) n_evts;
2939 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
2940 int maxevents, double wait_for_time)
2942 vcl_worker_t *wrk = vcl_worker_get_current ();
2943 vcl_session_t *vep_session;
2947 if (PREDICT_FALSE (maxevents <= 0))
2949 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
2950 return VPPCOM_EINVAL;
2953 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2955 return VPPCOM_EBADFD;
2957 if (PREDICT_FALSE (!vep_session->is_vep))
2959 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
2960 return VPPCOM_EINVAL;
2963 memset (events, 0, sizeof (*events) * maxevents);
2965 if (vec_len (wrk->unhandled_evts_vector))
2967 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2969 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
2971 if (n_evts == maxevents)
2973 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
2977 vec_reset_length (wrk->unhandled_evts_vector);
2980 if (vcm->cfg.use_mq_eventfd)
2981 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
2984 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
2989 vppcom_session_attr (uint32_t session_handle, uint32_t op,
2990 void *buffer, uint32_t * buflen)
2992 vcl_worker_t *wrk = vcl_worker_get_current ();
2993 vcl_session_t *session;
2995 u32 *flags = buffer, tmp_flags = 0;
2996 vppcom_endpt_t *ep = buffer;
2998 session = vcl_session_get_w_handle (wrk, session_handle);
3000 return VPPCOM_EBADFD;
3004 case VPPCOM_ATTR_GET_NREAD:
3005 rv = vcl_session_read_ready (session);
3006 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3010 case VPPCOM_ATTR_GET_NWRITE:
3011 rv = vcl_session_write_ready (session);
3012 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3016 case VPPCOM_ATTR_GET_FLAGS:
3017 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3019 *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr,
3020 VCL_SESS_ATTR_NONBLOCK));
3021 *buflen = sizeof (*flags);
3022 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3023 "is_nonblocking = %u", session_handle, *flags,
3024 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3030 case VPPCOM_ATTR_SET_FLAGS:
3031 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3033 if (*flags & O_NONBLOCK)
3034 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
3036 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
3038 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3039 " is_nonblocking = %u", session_handle, *flags,
3040 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3046 case VPPCOM_ATTR_GET_PEER_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.rmt_port;
3052 if (session->transport.is_ip4)
3053 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3054 sizeof (ip4_address_t));
3056 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3057 sizeof (ip6_address_t));
3058 *buflen = sizeof (*ep);
3059 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3060 "addr = %U, port %u", session_handle, ep->is_ip4,
3061 format_ip46_address, &session->transport.rmt_ip,
3062 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3063 clib_net_to_host_u16 (ep->port));
3069 case VPPCOM_ATTR_GET_LCL_ADDR:
3070 if (PREDICT_TRUE (buffer && buflen &&
3071 (*buflen >= sizeof (*ep)) && ep->ip))
3073 ep->is_ip4 = session->transport.is_ip4;
3074 ep->port = session->transport.lcl_port;
3075 if (session->transport.is_ip4)
3076 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3077 sizeof (ip4_address_t));
3079 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3080 sizeof (ip6_address_t));
3081 *buflen = sizeof (*ep);
3082 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3083 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3084 &session->transport.lcl_ip,
3085 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3086 clib_net_to_host_u16 (ep->port));
3092 case VPPCOM_ATTR_SET_LCL_ADDR:
3093 if (PREDICT_TRUE (buffer && buflen &&
3094 (*buflen >= sizeof (*ep)) && ep->ip))
3096 session->transport.is_ip4 = ep->is_ip4;
3097 session->transport.lcl_port = ep->port;
3098 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3099 *buflen = sizeof (*ep);
3100 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3101 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3102 &session->transport.lcl_ip,
3103 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3104 clib_net_to_host_u16 (ep->port));
3110 case VPPCOM_ATTR_GET_LIBC_EPFD:
3111 rv = session->libc_epfd;
3112 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3115 case VPPCOM_ATTR_SET_LIBC_EPFD:
3116 if (PREDICT_TRUE (buffer && buflen &&
3117 (*buflen == sizeof (session->libc_epfd))))
3119 session->libc_epfd = *(int *) buffer;
3120 *buflen = sizeof (session->libc_epfd);
3122 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3123 session->libc_epfd, *buflen);
3129 case VPPCOM_ATTR_GET_PROTOCOL:
3130 if (buffer && buflen && (*buflen >= sizeof (int)))
3132 *(int *) buffer = session->session_type;
3133 *buflen = sizeof (int);
3135 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3136 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3142 case VPPCOM_ATTR_GET_LISTEN:
3143 if (buffer && buflen && (*buflen >= sizeof (int)))
3145 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3146 VCL_SESS_ATTR_LISTEN);
3147 *buflen = sizeof (int);
3149 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3156 case VPPCOM_ATTR_GET_ERROR:
3157 if (buffer && buflen && (*buflen >= sizeof (int)))
3159 *(int *) buffer = 0;
3160 *buflen = sizeof (int);
3162 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3163 *(int *) buffer, *buflen);
3169 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3170 if (buffer && buflen && (*buflen >= sizeof (u32)))
3174 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3175 session->tx_fifo ? session->tx_fifo->nitems :
3176 vcm->cfg.tx_fifo_size);
3177 *buflen = sizeof (u32);
3179 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3180 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3187 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3188 if (buffer && buflen && (*buflen == sizeof (u32)))
3191 session->sndbuf_size = *(u32 *) buffer;
3192 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3193 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3200 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3201 if (buffer && buflen && (*buflen >= sizeof (u32)))
3205 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3206 session->rx_fifo ? session->rx_fifo->nitems :
3207 vcm->cfg.rx_fifo_size);
3208 *buflen = sizeof (u32);
3210 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3211 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3217 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3218 if (buffer && buflen && (*buflen == sizeof (u32)))
3221 session->rcvbuf_size = *(u32 *) buffer;
3222 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3223 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3230 case VPPCOM_ATTR_GET_REUSEADDR:
3231 if (buffer && buflen && (*buflen >= sizeof (int)))
3234 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3235 VCL_SESS_ATTR_REUSEADDR);
3236 *buflen = sizeof (int);
3238 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3239 *(int *) buffer, *buflen);
3245 case VPPCOM_ATTR_SET_REUSEADDR:
3246 if (buffer && buflen && (*buflen == sizeof (int)) &&
3247 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3250 if (*(int *) buffer)
3251 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
3253 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
3255 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3256 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEADDR),
3263 case VPPCOM_ATTR_GET_REUSEPORT:
3264 if (buffer && buflen && (*buflen >= sizeof (int)))
3267 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3268 VCL_SESS_ATTR_REUSEPORT);
3269 *buflen = sizeof (int);
3271 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3272 *(int *) buffer, *buflen);
3278 case VPPCOM_ATTR_SET_REUSEPORT:
3279 if (buffer && buflen && (*buflen == sizeof (int)) &&
3280 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3283 if (*(int *) buffer)
3284 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
3286 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
3288 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3289 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEPORT),
3296 case VPPCOM_ATTR_GET_BROADCAST:
3297 if (buffer && buflen && (*buflen >= sizeof (int)))
3300 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3301 VCL_SESS_ATTR_BROADCAST);
3302 *buflen = sizeof (int);
3304 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3305 *(int *) buffer, *buflen);
3311 case VPPCOM_ATTR_SET_BROADCAST:
3312 if (buffer && buflen && (*buflen == sizeof (int)))
3315 if (*(int *) buffer)
3316 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
3318 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
3320 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3321 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_BROADCAST),
3328 case VPPCOM_ATTR_GET_V6ONLY:
3329 if (buffer && buflen && (*buflen >= sizeof (int)))
3332 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3333 VCL_SESS_ATTR_V6ONLY);
3334 *buflen = sizeof (int);
3336 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3337 *(int *) buffer, *buflen);
3343 case VPPCOM_ATTR_SET_V6ONLY:
3344 if (buffer && buflen && (*buflen == sizeof (int)))
3347 if (*(int *) buffer)
3348 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
3350 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
3352 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3353 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_V6ONLY),
3360 case VPPCOM_ATTR_GET_KEEPALIVE:
3361 if (buffer && buflen && (*buflen >= sizeof (int)))
3364 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3365 VCL_SESS_ATTR_KEEPALIVE);
3366 *buflen = sizeof (int);
3368 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3369 *(int *) buffer, *buflen);
3375 case VPPCOM_ATTR_SET_KEEPALIVE:
3376 if (buffer && buflen && (*buflen == sizeof (int)))
3379 if (*(int *) buffer)
3380 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3382 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3384 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3385 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_KEEPALIVE),
3392 case VPPCOM_ATTR_GET_TCP_NODELAY:
3393 if (buffer && buflen && (*buflen >= sizeof (int)))
3396 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3397 VCL_SESS_ATTR_TCP_NODELAY);
3398 *buflen = sizeof (int);
3400 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3401 *(int *) buffer, *buflen);
3407 case VPPCOM_ATTR_SET_TCP_NODELAY:
3408 if (buffer && buflen && (*buflen == sizeof (int)))
3411 if (*(int *) buffer)
3412 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3414 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3416 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3417 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_NODELAY),
3424 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3425 if (buffer && buflen && (*buflen >= sizeof (int)))
3428 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3429 VCL_SESS_ATTR_TCP_KEEPIDLE);
3430 *buflen = sizeof (int);
3432 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3433 *(int *) buffer, *buflen);
3439 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3440 if (buffer && buflen && (*buflen == sizeof (int)))
3443 if (*(int *) buffer)
3444 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3446 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3448 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3449 VCL_SESS_ATTR_TEST (session->attr,
3450 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3456 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3457 if (buffer && buflen && (*buflen >= sizeof (int)))
3460 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3461 VCL_SESS_ATTR_TCP_KEEPINTVL);
3462 *buflen = sizeof (int);
3464 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3465 *(int *) buffer, *buflen);
3471 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3472 if (buffer && buflen && (*buflen == sizeof (int)))
3475 if (*(int *) buffer)
3476 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3478 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3480 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3481 VCL_SESS_ATTR_TEST (session->attr,
3482 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3488 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3489 if (buffer && buflen && (*buflen >= sizeof (u32)))
3492 *(u32 *) buffer = session->user_mss;
3493 *buflen = sizeof (int);
3495 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3496 *(int *) buffer, *buflen);
3502 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3503 if (buffer && buflen && (*buflen == sizeof (u32)))
3506 session->user_mss = *(u32 *) buffer;
3508 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3509 session->user_mss, *buflen);
3515 case VPPCOM_ATTR_SET_SHUT:
3516 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3517 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3518 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3519 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3522 case VPPCOM_ATTR_GET_SHUT:
3523 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3525 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3528 *(int *) buffer = SHUT_RD;
3529 else if (tmp_flags == 2)
3530 *(int *) buffer = SHUT_WR;
3531 else if (tmp_flags == 3)
3532 *(int *) buffer = SHUT_RDWR;
3533 *buflen = sizeof (int);
3544 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3545 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3547 vcl_worker_t *wrk = vcl_worker_get_current ();
3549 vcl_session_t *session = 0;
3553 session = vcl_session_get_w_handle (wrk, session_handle);
3554 if (PREDICT_FALSE (!session))
3556 VDBG (0, "sh 0x%llx is closed!", session_handle);
3557 return VPPCOM_EBADFD;
3559 ep->is_ip4 = session->transport.is_ip4;
3560 ep->port = session->transport.rmt_port;
3564 rv = vppcom_session_read (session_handle, buffer, buflen);
3565 else if (flags & MSG_PEEK)
3566 rv = vppcom_session_peek (session_handle, buffer, buflen);
3569 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3570 return VPPCOM_EAFNOSUPPORT;
3575 if (session->transport.is_ip4)
3576 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3577 sizeof (ip4_address_t));
3579 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3580 sizeof (ip6_address_t));
3587 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3588 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3591 return VPPCOM_EINVAL;
3596 return VPPCOM_EINVAL;
3601 // TBD check the flags and do the right thing
3602 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3605 return (vppcom_session_write_inline (session_handle, buffer, buflen, 1));
3609 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3611 vcl_worker_t *wrk = vcl_worker_get_current ();
3612 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3613 u32 i, keep_trying = 1;
3614 svm_msg_q_msg_t msg;
3618 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3621 return VPPCOM_EFAULT;
3625 vcl_session_t *session;
3627 /* Dequeue all events and drop all unhandled io events */
3628 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3630 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3631 vcl_handle_mq_event (wrk, e);
3632 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3634 vec_reset_length (wrk->unhandled_evts_vector);
3636 for (i = 0; i < n_sids; i++)
3638 session = vcl_session_get (wrk, vp[i].sh);
3641 vp[i].revents = POLLHUP;
3648 if (POLLIN & vp[i].events)
3650 rv = vcl_session_read_ready (session);
3653 vp[i].revents |= POLLIN;
3660 case VPPCOM_ECONNRESET:
3661 vp[i].revents = POLLHUP;
3665 vp[i].revents = POLLERR;
3672 if (POLLOUT & vp[i].events)
3674 rv = vcl_session_write_ready (session);
3677 vp[i].revents |= POLLOUT;
3684 case VPPCOM_ECONNRESET:
3685 vp[i].revents = POLLHUP;
3689 vp[i].revents = POLLERR;
3696 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3698 vp[i].revents = POLLNVAL;
3702 if (wait_for_time != -1)
3703 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3705 while ((num_ev == 0) && keep_trying);
3711 vppcom_mq_epoll_fd (void)
3713 vcl_worker_t *wrk = vcl_worker_get_current ();
3714 return wrk->mqs_epfd;
3718 vppcom_session_index (vcl_session_handle_t session_handle)
3720 return session_handle & 0xFFFFFF;
3724 vppcom_session_worker (vcl_session_handle_t session_handle)
3726 return session_handle >> 24;
3730 vppcom_worker_register (void)
3736 if (!vcl_worker_alloc_and_init ())
3737 return VPPCOM_EEXIST;
3739 wrk = vcl_worker_get_current ();
3740 wrk_name = format (0, "%s-wrk-%u", vcm->app_name, wrk->wrk_index);
3742 rv = vppcom_connect_to_vpp ((char *) wrk_name);
3743 vec_free (wrk_name);
3746 return VPPCOM_EFAULT;
3748 if (vcl_worker_register_with_vpp ())
3749 return VPPCOM_EEXIST;
3755 vppcom_worker_unregister (void)
3757 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3758 vcl_set_worker_index (~0);
3762 vppcom_worker_index (void)
3764 return vcl_get_worker_index ();
3768 vppcom_worker_mqs_epfd (void)
3770 vcl_worker_t *wrk = vcl_worker_get_current ();
3771 if (!vcm->cfg.use_mq_eventfd)
3773 return wrk->mqs_epfd;
3777 vppcom_session_is_connectable_listener (uint32_t session_handle)
3779 vcl_session_t *session;
3780 vcl_worker_t *wrk = vcl_worker_get_current ();
3781 session = vcl_session_get_w_handle (wrk, session_handle);
3783 return VPPCOM_EBADFD;
3784 return vcl_session_is_connectable_listener (wrk, session);
3788 vppcom_session_listener (uint32_t session_handle)
3790 vcl_worker_t *wrk = vcl_worker_get_current ();
3791 vcl_session_t *listen_session, *session;
3792 session = vcl_session_get_w_handle (wrk, session_handle);
3794 return VPPCOM_EBADFD;
3795 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3796 return VPPCOM_EBADFD;
3797 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3798 if (!listen_session)
3799 return VPPCOM_EBADFD;
3800 return vcl_session_handle (listen_session);
3804 vppcom_session_n_accepted (uint32_t session_handle)
3806 vcl_worker_t *wrk = vcl_worker_get_current ();
3807 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3809 return VPPCOM_EBADFD;
3810 return session->n_accepted_sessions;
3814 * fd.io coding-style-patch-verification: ON
3817 * eval: (c-set-style "gnu")