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";
88 st = "STATE_DETACHED";
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_DETACHED | 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_DETACHED | 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_DETACHED | 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_DETACHED;
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);
683 vcl_msg->accepted_msg = *msg;
684 /* Session handle points to listener until fully accepted by app */
685 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
690 static vcl_session_t *
691 vcl_session_disconnected_handler (vcl_worker_t * wrk,
692 session_disconnected_msg_t * msg)
694 vcl_session_t *session;
696 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
699 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
703 /* Late disconnect notification on a session that has been closed */
704 if (session->session_state == STATE_CLOSED)
707 /* Caught a disconnect before actually accepting the session */
708 if (session->session_state == STATE_LISTEN)
710 if (!vcl_flag_accepted_session (session, msg->handle,
711 VCL_ACCEPTED_F_CLOSED))
712 VDBG (0, "session was not accepted!");
716 /* If not already reset change state */
717 if (session->session_state != STATE_DISCONNECT)
718 session->session_state = STATE_VPP_CLOSING;
724 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
726 session_cleanup_msg_t *msg;
727 vcl_session_t *session;
729 msg = (session_cleanup_msg_t *) data;
730 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
733 VDBG (0, "disconnect confirmed for unknown handle 0x%llx", msg->handle);
737 vcl_session_table_del_vpp_handle (wrk, msg->handle);
738 /* Should not happen. App did not close the connection so don't free it. */
739 if (session->session_state != STATE_CLOSED)
741 VDBG (0, "app did not close session %d", session->session_index);
742 session->session_state = STATE_DETACHED;
743 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
746 vcl_session_free (wrk, session);
750 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
752 session_req_worker_update_msg_t *msg;
755 msg = (session_req_worker_update_msg_t *) data;
756 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
760 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
764 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
766 session_worker_update_reply_msg_t *msg;
769 msg = (session_worker_update_reply_msg_t *) data;
770 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
773 VDBG (0, "unknown handle 0x%llx", msg->handle);
776 if (vcl_segment_is_not_mounted (wrk, msg->segment_handle))
778 clib_warning ("segment for session %u is not mounted!",
785 s->rx_fifo = uword_to_pointer (msg->rx_fifo, svm_fifo_t *);
786 s->tx_fifo = uword_to_pointer (msg->tx_fifo, svm_fifo_t *);
787 s->rx_fifo->client_session_index = s->session_index;
788 s->tx_fifo->client_session_index = s->session_index;
789 s->rx_fifo->client_thread_index = wrk->wrk_index;
790 s->tx_fifo->client_thread_index = wrk->wrk_index;
792 s->session_state = STATE_UPDATED;
794 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
795 s->vpp_handle, wrk->wrk_index);
799 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
801 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
802 session_app_add_segment_msg_t *msg;
806 msg = (session_app_add_segment_msg_t *) data;
810 vl_socket_client_recv_fd_msg2 (&wrk->bapi_sock_ctx, &fd, 1, 5);
811 seg_type = SSVM_SEGMENT_MEMFD;
814 segment_handle = msg->segment_handle;
815 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
817 clib_warning ("invalid segment handle");
821 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
824 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
828 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
833 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
835 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
836 vcl_segment_detach (msg->segment_handle);
837 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
841 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
843 session_disconnected_msg_t *disconnected_msg;
844 vcl_session_t *session;
846 switch (e->event_type)
848 case SESSION_IO_EVT_RX:
849 case SESSION_IO_EVT_TX:
850 session = vcl_session_get (wrk, e->session_index);
851 if (!session || !(session->session_state & STATE_OPEN))
853 vec_add1 (wrk->unhandled_evts_vector, *e);
855 case SESSION_CTRL_EVT_ACCEPTED:
856 vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
858 case SESSION_CTRL_EVT_CONNECTED:
859 vcl_session_connected_handler (wrk,
860 (session_connected_msg_t *) e->data);
862 case SESSION_CTRL_EVT_DISCONNECTED:
863 disconnected_msg = (session_disconnected_msg_t *) e->data;
864 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
867 VDBG (0, "disconnected session %u [0x%llx]", session->session_index,
868 session->vpp_handle);
870 case SESSION_CTRL_EVT_RESET:
871 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
873 case SESSION_CTRL_EVT_BOUND:
874 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
876 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
877 vcl_session_unlisten_reply_handler (wrk, e->data);
879 case SESSION_CTRL_EVT_MIGRATED:
880 vcl_session_migrated_handler (wrk, e->data);
882 case SESSION_CTRL_EVT_CLEANUP:
883 vcl_session_cleanup_handler (wrk, e->data);
885 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
886 vcl_session_req_worker_update_handler (wrk, e->data);
888 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
889 vcl_session_worker_update_reply_handler (wrk, e->data);
891 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
892 vcl_session_app_add_segment_handler (wrk, e->data);
894 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
895 vcl_session_app_del_segment_handler (wrk, e->data);
898 clib_warning ("unhandled %u", e->event_type);
904 vppcom_wait_for_session_state_change (u32 session_index,
905 vcl_session_state_t state,
908 vcl_worker_t *wrk = vcl_worker_get_current ();
909 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
910 vcl_session_t *volatile session;
916 session = vcl_session_get (wrk, session_index);
917 if (PREDICT_FALSE (!session))
919 return VPPCOM_EBADFD;
921 if (session->session_state & state)
925 if (session->session_state & STATE_DETACHED)
927 return VPPCOM_ECONNREFUSED;
930 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
935 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
936 vcl_handle_mq_event (wrk, e);
937 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
939 while (clib_time_now (&wrk->clib_time) < timeout);
941 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
942 vppcom_session_state_str (state));
943 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
945 return VPPCOM_ETIMEDOUT;
949 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
951 vcl_session_state_t state;
955 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
958 vec_foreach (sip, wrk->pending_session_wrk_updates)
960 s = vcl_session_get (wrk, *sip);
961 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
962 state = s->session_state;
963 vppcom_wait_for_session_state_change (s->session_index, STATE_UPDATED, 5);
964 s->session_state = state;
966 vec_reset_length (wrk->pending_session_wrk_updates);
970 vcl_flush_mq_events (void)
972 vcl_worker_t *wrk = vcl_worker_get_current ();
973 svm_msg_q_msg_t *msg;
978 mq = wrk->app_event_queue;
980 vcl_mq_dequeue_batch (wrk, mq, ~0);
981 svm_msg_q_unlock (mq);
983 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
985 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
986 e = svm_msg_q_msg_data (mq, msg);
987 vcl_handle_mq_event (wrk, e);
988 svm_msg_q_free_msg (mq, msg);
990 vec_reset_length (wrk->mq_msg_vector);
991 vcl_handle_pending_wrk_updates (wrk);
995 vppcom_app_session_enable (void)
999 if (vcm->app_state != STATE_APP_ENABLED)
1001 vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
1002 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
1003 if (PREDICT_FALSE (rv))
1005 VDBG (0, "application session enable timed out! returning %d (%s)",
1006 rv, vppcom_retval_str (rv));
1014 vppcom_app_attach (void)
1018 vppcom_app_send_attach ();
1019 rv = vcl_wait_for_app_state_change (STATE_APP_ATTACHED);
1020 if (PREDICT_FALSE (rv))
1022 VDBG (0, "application attach timed out! returning %d (%s)", rv,
1023 vppcom_retval_str (rv));
1031 vppcom_session_unbind (u32 session_handle)
1033 vcl_worker_t *wrk = vcl_worker_get_current ();
1034 session_accepted_msg_t *accepted_msg;
1035 vcl_session_t *session = 0;
1036 vcl_session_msg_t *evt;
1038 session = vcl_session_get_w_handle (wrk, session_handle);
1040 return VPPCOM_EBADFD;
1042 /* Flush pending accept events, if any */
1043 while (clib_fifo_elts (session->accept_evts_fifo))
1045 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1046 accepted_msg = &evt->accepted_msg;
1047 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1048 vcl_send_session_accepted_reply (session->vpp_evt_q,
1049 accepted_msg->context,
1050 session->vpp_handle, -1);
1052 clib_fifo_free (session->accept_evts_fifo);
1054 vcl_send_session_unlisten (wrk, session);
1056 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1057 session->vpp_handle);
1058 vcl_evt (VCL_EVT_UNBIND, session);
1060 session->vpp_handle = ~0;
1061 session->session_state = STATE_DISCONNECT;
1067 vppcom_session_disconnect (u32 session_handle)
1069 vcl_worker_t *wrk = vcl_worker_get_current ();
1070 svm_msg_q_t *vpp_evt_q;
1071 vcl_session_t *session, *listen_session;
1072 vcl_session_state_t state;
1075 session = vcl_session_get_w_handle (wrk, session_handle);
1077 return VPPCOM_EBADFD;
1079 vpp_handle = session->vpp_handle;
1080 state = session->session_state;
1082 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
1083 vpp_handle, state, vppcom_session_state_str (state));
1085 if (PREDICT_FALSE (state & STATE_LISTEN))
1087 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
1088 return VPPCOM_EBADFD;
1091 if (state & STATE_VPP_CLOSING)
1093 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
1094 vcl_send_session_disconnected_reply (vpp_evt_q, wrk->my_client_index,
1096 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
1097 session->session_index, vpp_handle);
1101 VDBG (1, "session %u [0x%llx]: sending disconnect...",
1102 session->session_index, vpp_handle);
1103 vcl_send_session_disconnect (wrk, session);
1106 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
1108 listen_session = vcl_session_get (wrk, session->listener_index);
1109 listen_session->n_accepted_sessions--;
1118 * Notify vpp of the disconnect and mark the worker as free. If we're the
1119 * last worker, do a full cleanup otherwise, since we're probably a forked
1120 * child, avoid syscalls as much as possible. We might've lost privileges.
1123 vppcom_app_exit (void)
1125 if (!pool_elts (vcm->workers))
1127 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1128 vcl_set_worker_index (~0);
1129 vcl_elog_stop (vcm);
1133 * VPPCOM Public API functions
1136 vppcom_app_create (char *app_name)
1138 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1143 VDBG (1, "already initialized");
1144 return VPPCOM_EEXIST;
1148 vppcom_cfg (&vcm->cfg);
1149 vcl_cfg = &vcm->cfg;
1151 vcm->main_cpu = pthread_self ();
1152 vcm->main_pid = getpid ();
1153 vcm->app_name = format (0, "%s", app_name);
1154 vppcom_init_error_string_table ();
1155 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1156 20 /* timeout in secs */ );
1157 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1158 clib_spinlock_init (&vcm->workers_lock);
1159 clib_rwlock_init (&vcm->segment_table_lock);
1160 atexit (vppcom_app_exit);
1162 /* Allocate default worker */
1163 vcl_worker_alloc_and_init ();
1165 /* API hookup and connect to VPP */
1166 vcl_elog_init (vcm);
1167 vcm->app_state = STATE_APP_START;
1168 rv = vppcom_connect_to_vpp (app_name);
1171 VERR ("couldn't connect to VPP!");
1174 VDBG (0, "sending session enable");
1175 rv = vppcom_app_session_enable ();
1178 VERR ("vppcom_app_session_enable() failed!");
1182 VDBG (0, "sending app attach");
1183 rv = vppcom_app_attach ();
1186 VERR ("vppcom_app_attach() failed!");
1190 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1191 vcm->workers[0].my_client_index, vcm->workers[0].my_client_index);
1197 vppcom_app_destroy (void)
1200 f64 orig_app_timeout;
1202 if (!pool_elts (vcm->workers))
1205 vcl_evt (VCL_EVT_DETACH, vcm);
1207 if (pool_elts (vcm->workers) == 1)
1209 vcl_send_app_detach (vcl_worker_get_current ());
1210 orig_app_timeout = vcm->cfg.app_timeout;
1211 vcm->cfg.app_timeout = 2.0;
1212 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
1213 vcm->cfg.app_timeout = orig_app_timeout;
1214 if (PREDICT_FALSE (rv))
1215 VDBG (0, "application detach timed out! returning %d (%s)", rv,
1216 vppcom_retval_str (rv));
1217 vec_free (vcm->app_name);
1218 vcl_worker_cleanup (vcl_worker_get_current (), 0 /* notify vpp */ );
1222 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1225 vcl_set_worker_index (~0);
1226 vcl_elog_stop (vcm);
1227 vl_client_disconnect_from_vlib ();
1231 vppcom_session_create (u8 proto, u8 is_nonblocking)
1233 vcl_worker_t *wrk = vcl_worker_get_current ();
1234 vcl_session_t *session;
1236 session = vcl_session_alloc (wrk);
1238 session->session_type = proto;
1239 session->session_state = STATE_CLOSED;
1240 session->vpp_handle = ~0;
1241 session->is_dgram = vcl_proto_is_dgram (proto);
1244 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
1246 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1247 is_nonblocking, session_index);
1249 VDBG (0, "created session %u", session->session_index);
1251 return vcl_session_handle (session);
1255 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * session,
1256 vcl_session_handle_t sh, u8 do_disconnect)
1258 vcl_session_state_t state;
1259 u32 next_sh, vep_sh;
1264 is_vep = session->is_vep;
1265 next_sh = session->vep.next_sh;
1266 vep_sh = session->vep.vep_sh;
1267 state = session->session_state;
1268 vpp_handle = session->vpp_handle;
1270 VDBG (1, "session %u [0x%llx] closing", session->session_index, vpp_handle);
1274 while (next_sh != ~0)
1276 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1277 if (PREDICT_FALSE (rv < 0))
1278 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1279 " failed! rv %d (%s)", vpp_handle, next_sh, vep_sh, rv,
1280 vppcom_retval_str (rv));
1282 next_sh = session->vep.next_sh;
1287 if (session->is_vep_session)
1289 rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, sh, 0);
1291 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1292 "failed! rv %d (%s)", session->session_index, vpp_handle,
1293 vep_sh, rv, vppcom_retval_str (rv));
1298 VDBG (1, "session %u [0x%llx] disconnect skipped",
1299 session->session_index, vpp_handle);
1303 if (state & STATE_LISTEN)
1305 rv = vppcom_session_unbind (sh);
1306 if (PREDICT_FALSE (rv < 0))
1307 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1308 "rv %d (%s)", session->session_index, vpp_handle, rv,
1309 vppcom_retval_str (rv));
1312 else if ((state & STATE_OPEN)
1313 || (vcl_session_is_connectable_listener (wrk, session)))
1315 rv = vppcom_session_disconnect (sh);
1316 if (PREDICT_FALSE (rv < 0))
1317 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1318 " rv %d (%s)", session->session_index, vpp_handle,
1319 rv, vppcom_retval_str (rv));
1321 else if (state == STATE_DISCONNECT)
1323 svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, session);
1324 vcl_send_session_reset_reply (mq, wrk->my_client_index,
1325 session->vpp_handle, 0);
1327 else if (state == STATE_DETACHED)
1329 /* Should not happen. VPP cleaned up before app confirmed close */
1330 VDBG (0, "vpp freed session %d before close", session->session_index);
1334 session->session_state = STATE_CLOSED;
1336 /* Session is removed only after vpp confirms the disconnect */
1340 vcl_session_table_del_vpp_handle (wrk, vpp_handle);
1342 vcl_session_free (wrk, session);
1343 vcl_evt (VCL_EVT_CLOSE, session, rv);
1349 vppcom_session_close (uint32_t session_handle)
1351 vcl_worker_t *wrk = vcl_worker_get_current ();
1352 vcl_session_t *session;
1354 session = vcl_session_get_w_handle (wrk, session_handle);
1356 return VPPCOM_EBADFD;
1357 return vcl_session_cleanup (wrk, session, session_handle,
1358 1 /* do_disconnect */ );
1362 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1364 vcl_worker_t *wrk = vcl_worker_get_current ();
1365 vcl_session_t *session = 0;
1368 return VPPCOM_EINVAL;
1370 session = vcl_session_get_w_handle (wrk, session_handle);
1372 return VPPCOM_EBADFD;
1374 if (session->is_vep)
1376 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1377 session->session_index);
1378 return VPPCOM_EBADFD;
1381 session->transport.is_ip4 = ep->is_ip4;
1383 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1384 sizeof (ip4_address_t));
1386 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1387 sizeof (ip6_address_t));
1388 session->transport.lcl_port = ep->port;
1390 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1391 "proto %s", session->session_index, session_handle,
1392 session->transport.is_ip4 ? "IPv4" : "IPv6",
1393 format_ip46_address, &session->transport.lcl_ip,
1394 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1395 clib_net_to_host_u16 (session->transport.lcl_port),
1396 vppcom_proto_str (session->session_type));
1397 vcl_evt (VCL_EVT_BIND, session);
1399 if (session->session_type == VPPCOM_PROTO_UDP)
1400 vppcom_session_listen (session_handle, 10);
1406 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1408 vcl_worker_t *wrk = vcl_worker_get_current ();
1409 vcl_session_t *listen_session = 0;
1410 u64 listen_vpp_handle;
1413 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1414 if (!listen_session || listen_session->is_vep)
1415 return VPPCOM_EBADFD;
1417 if (q_len == 0 || q_len == ~0)
1418 q_len = vcm->cfg.listen_queue_size;
1420 listen_vpp_handle = listen_session->vpp_handle;
1421 if (listen_session->session_state & STATE_LISTEN)
1423 VDBG (0, "session %u [0x%llx]: already in listen state!",
1424 listen_sh, listen_vpp_handle);
1428 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1431 * Send listen request to vpp and wait for reply
1433 vcl_send_session_listen (wrk, listen_session);
1434 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1436 vcm->cfg.session_timeout);
1438 if (PREDICT_FALSE (rv))
1440 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1441 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1442 listen_sh, listen_session->vpp_handle, rv,
1443 vppcom_retval_str (rv));
1451 vppcom_session_tls_add_cert (uint32_t session_handle, char *cert,
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 (cert_len == 0 || cert_len == ~0)
1463 return VPPCOM_EBADFD;
1466 * Send listen request to vpp and wait for reply
1468 vppcom_send_application_tls_cert_add (session, cert, cert_len);
1469 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1470 vcl_wait_for_app_state_change (STATE_APP_READY);
1476 vppcom_session_tls_add_key (uint32_t session_handle, char *key,
1480 vcl_worker_t *wrk = vcl_worker_get_current ();
1481 vcl_session_t *session = 0;
1483 session = vcl_session_get_w_handle (wrk, session_handle);
1485 return VPPCOM_EBADFD;
1487 if (key_len == 0 || key_len == ~0)
1488 return VPPCOM_EBADFD;
1490 vppcom_send_application_tls_key_add (session, key, key_len);
1491 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1492 vcl_wait_for_app_state_change (STATE_APP_READY);
1497 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1501 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1503 return VPPCOM_EBADFD;
1506 if ((ls->session_state != STATE_LISTEN)
1507 && (!vcl_session_is_connectable_listener (wrk, ls)))
1510 "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1511 " (%s)", ls->vpp_handle, ls->session_state,
1512 vppcom_session_state_str (ls->session_state));
1513 return VPPCOM_EBADFD;
1519 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1521 if (!strcmp (proto_str, "TCP"))
1522 *proto = VPPCOM_PROTO_TCP;
1523 else if (!strcmp (proto_str, "tcp"))
1524 *proto = VPPCOM_PROTO_TCP;
1525 else if (!strcmp (proto_str, "UDP"))
1526 *proto = VPPCOM_PROTO_UDP;
1527 else if (!strcmp (proto_str, "udp"))
1528 *proto = VPPCOM_PROTO_UDP;
1529 else if (!strcmp (proto_str, "UDPC"))
1530 *proto = VPPCOM_PROTO_UDPC;
1531 else if (!strcmp (proto_str, "udpc"))
1532 *proto = VPPCOM_PROTO_UDPC;
1533 else if (!strcmp (proto_str, "TLS"))
1534 *proto = VPPCOM_PROTO_TLS;
1535 else if (!strcmp (proto_str, "tls"))
1536 *proto = VPPCOM_PROTO_TLS;
1537 else if (!strcmp (proto_str, "QUIC"))
1538 *proto = VPPCOM_PROTO_QUIC;
1539 else if (!strcmp (proto_str, "quic"))
1540 *proto = VPPCOM_PROTO_QUIC;
1547 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1550 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1551 vcl_worker_t *wrk = vcl_worker_get_current ();
1552 session_accepted_msg_t accepted_msg;
1553 vcl_session_t *listen_session = 0;
1554 vcl_session_t *client_session = 0;
1555 vcl_session_msg_t *evt;
1556 svm_msg_q_msg_t msg;
1561 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1562 if (!listen_session)
1563 return VPPCOM_EBADFD;
1565 listen_session_index = listen_session->session_index;
1566 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1569 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1571 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1572 accept_flags = evt->flags;
1573 accepted_msg = evt->accepted_msg;
1577 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1578 VCL_SESS_ATTR_NONBLOCK);
1581 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1582 return VPPCOM_EAGAIN;
1584 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1585 return VPPCOM_EAGAIN;
1587 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1588 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1590 vcl_handle_mq_event (wrk, e);
1591 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1594 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1595 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1601 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1602 listen_session_index);
1603 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1604 return VPPCOM_ECONNABORTED;
1606 listen_session = vcl_session_get (wrk, listen_session_index);
1607 client_session = vcl_session_get (wrk, client_session_index);
1609 if (flags & O_NONBLOCK)
1610 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1612 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1613 " flags %d, is_nonblocking %u", listen_session->session_index,
1614 listen_session->vpp_handle, client_session_index,
1615 client_session->vpp_handle, flags,
1616 VCL_SESS_ATTR_TEST (client_session->attr, VCL_SESS_ATTR_NONBLOCK));
1620 ep->is_ip4 = client_session->transport.is_ip4;
1621 ep->port = client_session->transport.rmt_port;
1622 if (client_session->transport.is_ip4)
1623 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1624 sizeof (ip4_address_t));
1626 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1627 sizeof (ip6_address_t));
1630 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1631 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1632 client_session_index, client_session->vpp_handle,
1633 format_ip46_address, &client_session->transport.rmt_ip,
1634 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1635 clib_net_to_host_u16 (client_session->transport.rmt_port),
1636 format_ip46_address, &client_session->transport.lcl_ip,
1637 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1638 clib_net_to_host_u16 (client_session->transport.lcl_port));
1639 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1640 client_session_index);
1643 * Session might have been closed already
1647 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1648 client_session->session_state = STATE_VPP_CLOSING;
1649 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1650 client_session->session_state = STATE_DISCONNECT;
1652 return vcl_session_handle (client_session);
1656 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1658 vcl_worker_t *wrk = vcl_worker_get_current ();
1659 vcl_session_t *session = 0;
1663 session = vcl_session_get_w_handle (wrk, session_handle);
1665 return VPPCOM_EBADFD;
1666 session_index = session->session_index;
1668 if (PREDICT_FALSE (session->is_vep))
1670 VDBG (0, "ERROR: cannot connect epoll session %u!",
1671 session->session_index);
1672 return VPPCOM_EBADFD;
1675 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1677 VDBG (0, "session handle %u [0x%llx]: session already "
1678 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1679 session_handle, session->vpp_handle,
1680 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1681 &session->transport.rmt_ip, session->transport.is_ip4 ?
1682 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1683 clib_net_to_host_u16 (session->transport.rmt_port),
1684 vppcom_proto_str (session->session_type), session->session_state,
1685 vppcom_session_state_str (session->session_state));
1689 session->transport.is_ip4 = server_ep->is_ip4;
1690 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1691 session->transport.rmt_port = server_ep->port;
1692 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1694 VDBG (0, "session handle %u: connecting to server %s %U "
1695 "port %d proto %s", session_handle,
1696 session->transport.is_ip4 ? "IPv4" : "IPv6",
1697 format_ip46_address,
1698 &session->transport.rmt_ip, session->transport.is_ip4 ?
1699 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1700 clib_net_to_host_u16 (session->transport.rmt_port),
1701 vppcom_proto_str (session->session_type));
1703 vcl_send_session_connect (wrk, session);
1705 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK))
1706 return VPPCOM_EINPROGRESS;
1709 * Wait for reply from vpp if blocking
1711 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1712 vcm->cfg.session_timeout);
1714 session = vcl_session_get (wrk, session_index);
1715 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1716 session->vpp_handle, rv ? "failed" : "succeeded");
1722 vppcom_session_stream_connect (uint32_t session_handle,
1723 uint32_t parent_session_handle)
1725 vcl_worker_t *wrk = vcl_worker_get_current ();
1726 vcl_session_t *session, *parent_session;
1727 u32 session_index, parent_session_index;
1730 session = vcl_session_get_w_handle (wrk, session_handle);
1732 return VPPCOM_EBADFD;
1733 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1734 if (!parent_session)
1735 return VPPCOM_EBADFD;
1737 session_index = session->session_index;
1738 parent_session_index = parent_session->session_index;
1739 if (PREDICT_FALSE (session->is_vep))
1741 VDBG (0, "ERROR: cannot connect epoll session %u!",
1742 session->session_index);
1743 return VPPCOM_EBADFD;
1746 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1748 VDBG (0, "session handle %u [0x%llx]: session already "
1749 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1750 session_handle, session->vpp_handle,
1751 parent_session_handle, parent_session->vpp_handle,
1752 vppcom_proto_str (session->session_type), session->session_state,
1753 vppcom_session_state_str (session->session_state));
1757 /* Connect to quic session specifics */
1758 session->transport.is_ip4 = parent_session->transport.is_ip4;
1759 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1760 session->transport.rmt_port = 0;
1761 session->parent_handle = parent_session->vpp_handle;
1763 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1764 session_handle, parent_session_handle, parent_session->vpp_handle);
1767 * Send connect request and wait for reply from vpp
1769 vcl_send_session_connect (wrk, session);
1770 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1771 vcm->cfg.session_timeout);
1773 session->listener_index = parent_session_index;
1774 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1776 parent_session->n_accepted_sessions++;
1778 session = vcl_session_get (wrk, session_index);
1779 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1780 session->vpp_handle, rv ? "failed" : "succeeded");
1786 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1788 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1792 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1795 vcl_worker_t *wrk = vcl_worker_get_current ();
1796 int n_read = 0, is_nonblocking;
1797 vcl_session_t *s = 0;
1798 svm_fifo_t *rx_fifo;
1799 svm_msg_q_msg_t msg;
1804 if (PREDICT_FALSE (!buf))
1805 return VPPCOM_EINVAL;
1807 s = vcl_session_get_w_handle (wrk, session_handle);
1808 if (PREDICT_FALSE (!s || s->is_vep))
1809 return VPPCOM_EBADFD;
1811 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1813 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1814 s->session_index, s->vpp_handle, s->session_state,
1815 vppcom_session_state_str (s->session_state));
1816 return vcl_session_closed_error (s);
1819 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1820 is_ct = vcl_session_is_ct (s);
1821 mq = wrk->app_event_queue;
1822 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1825 if (svm_fifo_is_empty_cons (rx_fifo))
1829 if (vcl_session_is_closing (s))
1830 return vcl_session_closing_error (s);
1831 svm_fifo_unset_event (s->rx_fifo);
1832 return VPPCOM_EWOULDBLOCK;
1834 while (svm_fifo_is_empty_cons (rx_fifo))
1836 if (vcl_session_is_closing (s))
1837 return vcl_session_closing_error (s);
1839 svm_fifo_unset_event (s->rx_fifo);
1840 svm_msg_q_lock (mq);
1841 if (svm_msg_q_is_empty (mq))
1842 svm_msg_q_wait (mq);
1844 svm_msg_q_sub_w_lock (mq, &msg);
1845 e = svm_msg_q_msg_data (mq, &msg);
1846 svm_msg_q_unlock (mq);
1847 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1848 vcl_handle_mq_event (wrk, e);
1849 svm_msg_q_free_msg (mq, &msg);
1854 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1856 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1858 if (svm_fifo_is_empty_cons (rx_fifo))
1859 svm_fifo_unset_event (s->rx_fifo);
1861 /* Cut-through sessions might request tx notifications on rx fifos */
1862 if (PREDICT_FALSE (rx_fifo->want_deq_ntf))
1864 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1865 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1866 svm_fifo_reset_has_deq_ntf (s->rx_fifo);
1869 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1870 s->vpp_handle, n_read, rx_fifo);
1876 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1878 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1882 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1884 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1888 vppcom_session_read_segments (uint32_t session_handle,
1889 vppcom_data_segments_t ds)
1891 vcl_worker_t *wrk = vcl_worker_get_current ();
1892 int n_read = 0, is_nonblocking;
1893 vcl_session_t *s = 0;
1894 svm_fifo_t *rx_fifo;
1895 svm_msg_q_msg_t msg;
1900 s = vcl_session_get_w_handle (wrk, session_handle);
1901 if (PREDICT_FALSE (!s || s->is_vep))
1902 return VPPCOM_EBADFD;
1904 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1905 return vcl_session_closed_error (s);
1907 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1908 is_ct = vcl_session_is_ct (s);
1909 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1910 rx_fifo = s->rx_fifo;
1914 svm_fifo_unset_event (s->rx_fifo);
1916 if (svm_fifo_is_empty_cons (rx_fifo))
1920 svm_fifo_unset_event (rx_fifo);
1921 return VPPCOM_EWOULDBLOCK;
1923 while (svm_fifo_is_empty_cons (rx_fifo))
1925 if (vcl_session_is_closing (s))
1926 return vcl_session_closing_error (s);
1928 svm_fifo_unset_event (rx_fifo);
1929 svm_msg_q_lock (mq);
1930 if (svm_msg_q_is_empty (mq))
1931 svm_msg_q_wait (mq);
1933 svm_msg_q_sub_w_lock (mq, &msg);
1934 e = svm_msg_q_msg_data (mq, &msg);
1935 svm_msg_q_unlock (mq);
1936 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1937 vcl_handle_mq_event (wrk, e);
1938 svm_msg_q_free_msg (mq, &msg);
1942 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_seg_t *) ds);
1943 svm_fifo_unset_event (rx_fifo);
1949 vppcom_session_free_segments (uint32_t session_handle,
1950 vppcom_data_segments_t ds)
1952 vcl_worker_t *wrk = vcl_worker_get_current ();
1955 s = vcl_session_get_w_handle (wrk, session_handle);
1956 if (PREDICT_FALSE (!s || s->is_vep))
1959 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_seg_t *) ds);
1963 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
1965 u32 first_copy = clib_min (ds[0].len, max_bytes);
1966 clib_memcpy_fast (buf, ds[0].data, first_copy);
1967 if (first_copy < max_bytes)
1969 clib_memcpy_fast (buf + first_copy, ds[1].data,
1970 clib_min (ds[1].len, max_bytes - first_copy));
1976 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1978 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
1982 vppcom_session_write_inline (uint32_t session_handle, void *buf, size_t n,
1985 vcl_worker_t *wrk = vcl_worker_get_current ();
1986 int n_write, is_nonblocking;
1987 vcl_session_t *s = 0;
1988 session_evt_type_t et;
1989 svm_msg_q_msg_t msg;
1990 svm_fifo_t *tx_fifo;
1995 if (PREDICT_FALSE (!buf || n == 0))
1996 return VPPCOM_EINVAL;
1998 s = vcl_session_get_w_handle (wrk, session_handle);
1999 if (PREDICT_FALSE (!s))
2000 return VPPCOM_EBADFD;
2002 if (PREDICT_FALSE (s->is_vep))
2004 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2005 " session!", s->session_index, s->vpp_handle);
2006 return VPPCOM_EBADFD;
2009 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2011 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2012 s->session_index, s->vpp_handle, s->session_state,
2013 vppcom_session_state_str (s->session_state));
2014 return vcl_session_closed_error (s);;
2017 is_ct = vcl_session_is_ct (s);
2018 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2019 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
2021 mq = wrk->app_event_queue;
2022 if (svm_fifo_is_full_prod (tx_fifo))
2026 return VPPCOM_EWOULDBLOCK;
2028 while (svm_fifo_is_full_prod (tx_fifo))
2030 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2031 if (vcl_session_is_closing (s))
2032 return vcl_session_closing_error (s);
2033 svm_msg_q_lock (mq);
2034 if (svm_msg_q_is_empty (mq))
2035 svm_msg_q_wait (mq);
2037 svm_msg_q_sub_w_lock (mq, &msg);
2038 e = svm_msg_q_msg_data (mq, &msg);
2039 svm_msg_q_unlock (mq);
2041 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
2042 vcl_handle_mq_event (wrk, e);
2043 svm_msg_q_free_msg (mq, &msg);
2047 et = SESSION_IO_EVT_TX;
2048 if (is_flush && !is_ct)
2049 et = SESSION_IO_EVT_TX_FLUSH;
2052 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2053 s->vpp_evt_q, buf, n, et,
2054 0 /* do_evt */ , SVM_Q_WAIT);
2056 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2057 0 /* do_evt */ , SVM_Q_WAIT);
2059 if (svm_fifo_set_event (s->tx_fifo))
2060 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
2063 ASSERT (n_write > 0);
2065 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2066 s->vpp_handle, n_write);
2072 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2074 return vppcom_session_write_inline (session_handle, buf, n,
2079 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2081 return vppcom_session_write_inline (session_handle, buf, n,
2085 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2086 if (PREDICT_FALSE (!_s->rx_fifo)) \
2088 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2090 if (!vcl_session_is_ct (_s)) \
2092 svm_fifo_unset_event (_s->rx_fifo); \
2093 if (svm_fifo_is_empty (_s->rx_fifo)) \
2096 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2098 svm_fifo_unset_event (_s->ct_rx_fifo); \
2099 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2105 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2106 unsigned long n_bits, unsigned long *read_map,
2107 unsigned long *write_map,
2108 unsigned long *except_map, u32 * bits_set)
2110 session_disconnected_msg_t *disconnected_msg;
2111 session_connected_msg_t *connected_msg;
2112 vcl_session_t *session;
2115 switch (e->event_type)
2117 case SESSION_IO_EVT_RX:
2118 sid = e->session_index;
2119 session = vcl_session_get (wrk, sid);
2122 vcl_fifo_rx_evt_valid_or_break (session);
2123 if (sid < n_bits && read_map)
2125 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2129 case SESSION_IO_EVT_TX:
2130 sid = e->session_index;
2131 session = vcl_session_get (wrk, sid);
2134 if (sid < n_bits && write_map)
2136 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2140 case SESSION_CTRL_EVT_ACCEPTED:
2141 session = vcl_session_accepted (wrk,
2142 (session_accepted_msg_t *) e->data);
2145 sid = session->session_index;
2146 if (sid < n_bits && read_map)
2148 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2152 case SESSION_CTRL_EVT_CONNECTED:
2153 connected_msg = (session_connected_msg_t *) e->data;
2154 sid = vcl_session_connected_handler (wrk, connected_msg);
2155 if (sid == VCL_INVALID_SESSION_INDEX)
2157 if (sid < n_bits && write_map)
2159 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2163 case SESSION_CTRL_EVT_DISCONNECTED:
2164 disconnected_msg = (session_disconnected_msg_t *) e->data;
2165 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2168 sid = session->session_index;
2169 if (sid < n_bits && except_map)
2171 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2175 case SESSION_CTRL_EVT_RESET:
2176 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2177 if (sid < n_bits && except_map)
2179 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2183 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2184 vcl_session_unlisten_reply_handler (wrk, e->data);
2186 case SESSION_CTRL_EVT_MIGRATED:
2187 vcl_session_migrated_handler (wrk, e->data);
2189 case SESSION_CTRL_EVT_CLEANUP:
2190 vcl_session_cleanup_handler (wrk, e->data);
2192 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2193 vcl_session_worker_update_reply_handler (wrk, e->data);
2195 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2196 vcl_session_req_worker_update_handler (wrk, e->data);
2198 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2199 vcl_session_app_add_segment_handler (wrk, e->data);
2201 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2202 vcl_session_app_del_segment_handler (wrk, e->data);
2205 clib_warning ("unhandled: %u", e->event_type);
2211 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2212 unsigned long n_bits, unsigned long *read_map,
2213 unsigned long *write_map, unsigned long *except_map,
2214 double time_to_wait, u32 * bits_set)
2216 svm_msg_q_msg_t *msg;
2220 svm_msg_q_lock (mq);
2221 if (svm_msg_q_is_empty (mq))
2225 svm_msg_q_unlock (mq);
2231 svm_msg_q_unlock (mq);
2234 else if (time_to_wait < 0)
2236 svm_msg_q_wait (mq);
2240 if (svm_msg_q_timedwait (mq, time_to_wait))
2242 svm_msg_q_unlock (mq);
2247 vcl_mq_dequeue_batch (wrk, mq, ~0);
2248 svm_msg_q_unlock (mq);
2250 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2252 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2253 e = svm_msg_q_msg_data (mq, msg);
2254 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2255 except_map, bits_set);
2256 svm_msg_q_free_msg (mq, msg);
2258 vec_reset_length (wrk->mq_msg_vector);
2259 vcl_handle_pending_wrk_updates (wrk);
2264 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2265 vcl_si_set * read_map, vcl_si_set * write_map,
2266 vcl_si_set * except_map, double time_to_wait,
2269 double wait = 0, start = 0;
2273 wait = time_to_wait;
2274 start = clib_time_now (&wrk->clib_time);
2279 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2280 write_map, except_map, wait, bits_set);
2286 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2294 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2295 vcl_si_set * read_map, vcl_si_set * write_map,
2296 vcl_si_set * except_map, double time_to_wait,
2299 vcl_mq_evt_conn_t *mqc;
2300 int __clib_unused n_read;
2304 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2305 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2306 vec_len (wrk->mq_events), time_to_wait);
2307 for (i = 0; i < n_mq_evts; i++)
2309 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2310 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2311 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2312 except_map, 0, bits_set);
2315 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2319 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2320 vcl_si_set * except_map, double time_to_wait)
2322 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2323 vcl_worker_t *wrk = vcl_worker_get_current ();
2324 vcl_session_t *session = 0;
2327 if (n_bits && read_map)
2329 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2330 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2331 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2332 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2334 if (n_bits && write_map)
2336 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2337 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2338 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2339 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2341 if (n_bits && except_map)
2343 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2344 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2345 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2346 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2356 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2357 if (!(session = vcl_session_get (wrk, sid)))
2359 if (except_map && sid < minbits)
2360 clib_bitmap_set_no_check (except_map, sid, 1);
2364 rv = svm_fifo_is_full_prod (session->tx_fifo);
2367 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2371 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2378 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2379 if (!(session = vcl_session_get (wrk, sid)))
2381 if (except_map && sid < minbits)
2382 clib_bitmap_set_no_check (except_map, sid, 1);
2386 rv = vcl_session_read_ready (session);
2389 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2397 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2399 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2400 read_map, write_map, except_map, &bits_set);
2402 vec_reset_length (wrk->unhandled_evts_vector);
2404 if (vcm->cfg.use_mq_eventfd)
2405 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2406 time_to_wait, &bits_set);
2408 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2409 time_to_wait, &bits_set);
2415 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2417 vcl_session_t *session;
2418 vppcom_epoll_t *vep;
2419 u32 sh = vep_handle;
2421 if (VPPCOM_DEBUG <= 2)
2424 session = vcl_session_get_w_handle (wrk, vep_handle);
2425 if (PREDICT_FALSE (!session))
2427 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2430 if (PREDICT_FALSE (!session->is_vep))
2432 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2435 vep = &session->vep;
2436 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2439 " is_vep_session = %u\n"
2440 " next_sh = 0x%x (%u)\n"
2441 "}\n", vep_handle, session->is_vep, session->is_vep_session,
2442 vep->next_sh, vep->next_sh);
2444 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2446 session = vcl_session_get_w_handle (wrk, sh);
2447 if (PREDICT_FALSE (!session))
2449 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2452 if (PREDICT_FALSE (session->is_vep))
2454 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2456 else if (PREDICT_FALSE (!session->is_vep_session))
2458 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2461 vep = &session->vep;
2462 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2463 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2464 sh, session->vep.vep_sh, vep_handle);
2465 if (session->is_vep_session)
2467 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2469 " next_sh = 0x%x (%u)\n"
2470 " prev_sh = 0x%x (%u)\n"
2471 " vep_sh = 0x%x (%u)\n"
2472 " ev.events = 0x%x\n"
2473 " ev.data.u64 = 0x%llx\n"
2476 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2477 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2478 vep->ev.data.u64, vep->et_mask);
2483 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2487 vppcom_epoll_create (void)
2489 vcl_worker_t *wrk = vcl_worker_get_current ();
2490 vcl_session_t *vep_session;
2492 vep_session = vcl_session_alloc (wrk);
2494 vep_session->is_vep = 1;
2495 vep_session->vep.vep_sh = ~0;
2496 vep_session->vep.next_sh = ~0;
2497 vep_session->vep.prev_sh = ~0;
2498 vep_session->vpp_handle = ~0;
2500 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2501 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2503 return vcl_session_handle (vep_session);
2507 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2508 struct epoll_event *event)
2510 vcl_worker_t *wrk = vcl_worker_get_current ();
2511 vcl_session_t *vep_session;
2512 vcl_session_t *session;
2515 if (vep_handle == session_handle)
2517 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2518 return VPPCOM_EINVAL;
2521 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2522 if (PREDICT_FALSE (!vep_session))
2524 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2525 return VPPCOM_EBADFD;
2527 if (PREDICT_FALSE (!vep_session->is_vep))
2529 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2530 return VPPCOM_EINVAL;
2533 ASSERT (vep_session->vep.vep_sh == ~0);
2534 ASSERT (vep_session->vep.prev_sh == ~0);
2536 session = vcl_session_get_w_handle (wrk, session_handle);
2537 if (PREDICT_FALSE (!session))
2539 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2540 return VPPCOM_EBADFD;
2542 if (PREDICT_FALSE (session->is_vep))
2544 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2545 return VPPCOM_EINVAL;
2551 if (PREDICT_FALSE (!event))
2553 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2554 return VPPCOM_EINVAL;
2556 if (vep_session->vep.next_sh != ~0)
2558 vcl_session_t *next_session;
2559 next_session = vcl_session_get_w_handle (wrk,
2560 vep_session->vep.next_sh);
2561 if (PREDICT_FALSE (!next_session))
2563 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2564 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2565 return VPPCOM_EBADFD;
2567 ASSERT (next_session->vep.prev_sh == vep_handle);
2568 next_session->vep.prev_sh = session_handle;
2570 session->vep.next_sh = vep_session->vep.next_sh;
2571 session->vep.prev_sh = vep_handle;
2572 session->vep.vep_sh = vep_handle;
2573 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2574 session->vep.ev = *event;
2575 session->is_vep = 0;
2576 session->is_vep_session = 1;
2577 vep_session->vep.next_sh = session_handle;
2579 if (session->tx_fifo)
2580 svm_fifo_add_want_deq_ntf (session->tx_fifo,
2581 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2583 /* Generate EPOLLOUT if tx fifo not full */
2584 if ((event->events & EPOLLOUT) &&
2585 (vcl_session_write_ready (session) > 0))
2587 session_event_t e = { 0 };
2588 e.event_type = SESSION_IO_EVT_TX;
2589 e.session_index = session->session_index;
2590 vec_add1 (wrk->unhandled_evts_vector, e);
2592 /* Generate EPOLLIN if rx fifo has data */
2593 if ((event->events & EPOLLIN) && (vcl_session_read_ready (session) > 0))
2595 session_event_t e = { 0 };
2596 e.event_type = SESSION_IO_EVT_RX;
2597 e.session_index = session->session_index;
2598 vec_add1 (wrk->unhandled_evts_vector, e);
2600 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2601 vep_handle, session_handle, event->events, event->data.u64);
2602 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2606 if (PREDICT_FALSE (!event))
2608 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2612 else if (PREDICT_FALSE (!session->is_vep_session))
2614 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2618 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2620 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2621 session_handle, session->vep.vep_sh, vep_handle);
2626 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2627 if ((event->events & EPOLLOUT) &&
2628 !(session->vep.ev.events & EPOLLOUT) &&
2629 (vcl_session_write_ready (session) > 0))
2631 session_event_t e = { 0 };
2632 e.event_type = SESSION_IO_EVT_TX;
2633 e.session_index = session->session_index;
2634 vec_add1 (wrk->unhandled_evts_vector, e);
2636 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2637 session->vep.ev = *event;
2638 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2639 vep_handle, session_handle, event->events, event->data.u64);
2643 if (PREDICT_FALSE (!session->is_vep_session))
2645 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2649 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2651 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2652 session_handle, session->vep.vep_sh, vep_handle);
2657 if (session->vep.prev_sh == vep_handle)
2658 vep_session->vep.next_sh = session->vep.next_sh;
2661 vcl_session_t *prev_session;
2662 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2663 if (PREDICT_FALSE (!prev_session))
2665 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2666 session->vep.prev_sh, session_handle);
2667 return VPPCOM_EBADFD;
2669 ASSERT (prev_session->vep.next_sh == session_handle);
2670 prev_session->vep.next_sh = session->vep.next_sh;
2672 if (session->vep.next_sh != ~0)
2674 vcl_session_t *next_session;
2675 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2676 if (PREDICT_FALSE (!next_session))
2678 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2679 session->vep.next_sh, session_handle);
2680 return VPPCOM_EBADFD;
2682 ASSERT (next_session->vep.prev_sh == session_handle);
2683 next_session->vep.prev_sh = session->vep.prev_sh;
2686 memset (&session->vep, 0, sizeof (session->vep));
2687 session->vep.next_sh = ~0;
2688 session->vep.prev_sh = ~0;
2689 session->vep.vep_sh = ~0;
2690 session->is_vep_session = 0;
2692 if (session->tx_fifo)
2693 svm_fifo_del_want_deq_ntf (session->tx_fifo, SVM_FIFO_NO_DEQ_NOTIF);
2695 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2697 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2701 VDBG (0, "Invalid operation (%d)!", op);
2705 vep_verify_epoll_chain (wrk, vep_handle);
2712 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2713 struct epoll_event *events, u32 * num_ev)
2715 session_disconnected_msg_t *disconnected_msg;
2716 session_connected_msg_t *connected_msg;
2717 u32 sid = ~0, session_events;
2718 u64 session_evt_data = ~0;
2719 vcl_session_t *session;
2722 switch (e->event_type)
2724 case SESSION_IO_EVT_RX:
2725 sid = e->session_index;
2726 if (!(session = vcl_session_get (wrk, sid)))
2728 vcl_fifo_rx_evt_valid_or_break (session);
2729 session_events = session->vep.ev.events;
2730 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2733 events[*num_ev].events |= EPOLLIN;
2734 session_evt_data = session->vep.ev.data.u64;
2735 session->has_rx_evt = 1;
2737 case SESSION_IO_EVT_TX:
2738 sid = e->session_index;
2739 if (!(session = vcl_session_get (wrk, sid)))
2741 session_events = session->vep.ev.events;
2742 if (!(EPOLLOUT & session_events))
2745 events[*num_ev].events |= EPOLLOUT;
2746 session_evt_data = session->vep.ev.data.u64;
2747 svm_fifo_reset_has_deq_ntf (session->tx_fifo);
2749 case SESSION_CTRL_EVT_ACCEPTED:
2750 session = vcl_session_accepted (wrk,
2751 (session_accepted_msg_t *) e->data);
2755 session_events = session->vep.ev.events;
2756 if (!(EPOLLIN & session_events))
2760 events[*num_ev].events |= EPOLLIN;
2761 session_evt_data = session->vep.ev.data.u64;
2763 case SESSION_CTRL_EVT_CONNECTED:
2764 connected_msg = (session_connected_msg_t *) e->data;
2765 sid = vcl_session_connected_handler (wrk, connected_msg);
2766 /* Generate EPOLLOUT because there's no connected event */
2767 if (!(session = vcl_session_get (wrk, sid)))
2769 session_events = session->vep.ev.events;
2770 if (!(EPOLLOUT & session_events))
2773 events[*num_ev].events |= EPOLLOUT;
2774 session_evt_data = session->vep.ev.data.u64;
2775 if (session->session_state & STATE_DETACHED)
2776 events[*num_ev].events |= EPOLLHUP;
2778 case SESSION_CTRL_EVT_DISCONNECTED:
2779 disconnected_msg = (session_disconnected_msg_t *) e->data;
2780 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2783 session_events = session->vep.ev.events;
2785 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2786 session_evt_data = session->vep.ev.data.u64;
2788 case SESSION_CTRL_EVT_RESET:
2789 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2790 if (!(session = vcl_session_get (wrk, sid)))
2792 session_events = session->vep.ev.events;
2794 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2795 session_evt_data = session->vep.ev.data.u64;
2797 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2798 vcl_session_unlisten_reply_handler (wrk, e->data);
2800 case SESSION_CTRL_EVT_MIGRATED:
2801 vcl_session_migrated_handler (wrk, e->data);
2803 case SESSION_CTRL_EVT_CLEANUP:
2804 vcl_session_cleanup_handler (wrk, e->data);
2806 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2807 vcl_session_req_worker_update_handler (wrk, e->data);
2809 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2810 vcl_session_worker_update_reply_handler (wrk, e->data);
2812 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2813 vcl_session_app_add_segment_handler (wrk, e->data);
2815 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2816 vcl_session_app_del_segment_handler (wrk, e->data);
2819 VDBG (0, "unhandled: %u", e->event_type);
2825 events[*num_ev].data.u64 = session_evt_data;
2826 if (EPOLLONESHOT & session_events)
2828 session = vcl_session_get (wrk, sid);
2829 session->vep.ev.events = 0;
2836 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2837 struct epoll_event *events, u32 maxevents,
2838 double wait_for_time, u32 * num_ev)
2840 svm_msg_q_msg_t *msg;
2844 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2845 goto handle_dequeued;
2847 svm_msg_q_lock (mq);
2848 if (svm_msg_q_is_empty (mq))
2852 svm_msg_q_unlock (mq);
2855 else if (wait_for_time < 0)
2857 svm_msg_q_wait (mq);
2861 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2863 svm_msg_q_unlock (mq);
2868 ASSERT (maxevents > *num_ev);
2869 vcl_mq_dequeue_batch (wrk, mq, maxevents - *num_ev);
2870 svm_msg_q_unlock (mq);
2873 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2875 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2876 e = svm_msg_q_msg_data (mq, msg);
2877 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2878 svm_msg_q_free_msg (mq, msg);
2880 vec_reset_length (wrk->mq_msg_vector);
2881 vcl_handle_pending_wrk_updates (wrk);
2886 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2887 int maxevents, u32 n_evts, double wait_for_time)
2889 double wait = 0, start = 0, now;
2893 wait = wait_for_time;
2894 start = clib_time_now (&wrk->clib_time);
2899 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2906 now = clib_time_now (&wrk->clib_time);
2907 wait -= now - start;
2916 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2917 int maxevents, u32 n_evts, double wait_for_time)
2919 vcl_mq_evt_conn_t *mqc;
2920 int __clib_unused n_read;
2924 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2926 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2927 vec_len (wrk->mq_events), wait_for_time);
2928 for (i = 0; i < n_mq_evts; i++)
2930 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2931 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2932 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
2934 if (!n_evts && n_mq_evts > 0)
2937 return (int) n_evts;
2941 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
2942 int maxevents, double wait_for_time)
2944 vcl_worker_t *wrk = vcl_worker_get_current ();
2945 vcl_session_t *vep_session;
2949 if (PREDICT_FALSE (maxevents <= 0))
2951 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
2952 return VPPCOM_EINVAL;
2955 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2957 return VPPCOM_EBADFD;
2959 if (PREDICT_FALSE (!vep_session->is_vep))
2961 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
2962 return VPPCOM_EINVAL;
2965 memset (events, 0, sizeof (*events) * maxevents);
2967 if (vec_len (wrk->unhandled_evts_vector))
2969 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2971 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
2973 if (n_evts == maxevents)
2975 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
2979 vec_reset_length (wrk->unhandled_evts_vector);
2982 if (vcm->cfg.use_mq_eventfd)
2983 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
2986 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
2991 vppcom_session_attr (uint32_t session_handle, uint32_t op,
2992 void *buffer, uint32_t * buflen)
2994 vcl_worker_t *wrk = vcl_worker_get_current ();
2995 vcl_session_t *session;
2997 u32 *flags = buffer, tmp_flags = 0;
2998 vppcom_endpt_t *ep = buffer;
3000 session = vcl_session_get_w_handle (wrk, session_handle);
3002 return VPPCOM_EBADFD;
3006 case VPPCOM_ATTR_GET_NREAD:
3007 rv = vcl_session_read_ready (session);
3008 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3012 case VPPCOM_ATTR_GET_NWRITE:
3013 rv = vcl_session_write_ready (session);
3014 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3018 case VPPCOM_ATTR_GET_FLAGS:
3019 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3021 *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr,
3022 VCL_SESS_ATTR_NONBLOCK));
3023 *buflen = sizeof (*flags);
3024 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3025 "is_nonblocking = %u", session_handle, *flags,
3026 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3032 case VPPCOM_ATTR_SET_FLAGS:
3033 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3035 if (*flags & O_NONBLOCK)
3036 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
3038 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
3040 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3041 " is_nonblocking = %u", session_handle, *flags,
3042 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3048 case VPPCOM_ATTR_GET_PEER_ADDR:
3049 if (PREDICT_TRUE (buffer && buflen &&
3050 (*buflen >= sizeof (*ep)) && ep->ip))
3052 ep->is_ip4 = session->transport.is_ip4;
3053 ep->port = session->transport.rmt_port;
3054 if (session->transport.is_ip4)
3055 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3056 sizeof (ip4_address_t));
3058 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3059 sizeof (ip6_address_t));
3060 *buflen = sizeof (*ep);
3061 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3062 "addr = %U, port %u", session_handle, ep->is_ip4,
3063 format_ip46_address, &session->transport.rmt_ip,
3064 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3065 clib_net_to_host_u16 (ep->port));
3071 case VPPCOM_ATTR_GET_LCL_ADDR:
3072 if (PREDICT_TRUE (buffer && buflen &&
3073 (*buflen >= sizeof (*ep)) && ep->ip))
3075 ep->is_ip4 = session->transport.is_ip4;
3076 ep->port = session->transport.lcl_port;
3077 if (session->transport.is_ip4)
3078 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3079 sizeof (ip4_address_t));
3081 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3082 sizeof (ip6_address_t));
3083 *buflen = sizeof (*ep);
3084 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3085 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3086 &session->transport.lcl_ip,
3087 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3088 clib_net_to_host_u16 (ep->port));
3094 case VPPCOM_ATTR_SET_LCL_ADDR:
3095 if (PREDICT_TRUE (buffer && buflen &&
3096 (*buflen >= sizeof (*ep)) && ep->ip))
3098 session->transport.is_ip4 = ep->is_ip4;
3099 session->transport.lcl_port = ep->port;
3100 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3101 *buflen = sizeof (*ep);
3102 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3103 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3104 &session->transport.lcl_ip,
3105 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3106 clib_net_to_host_u16 (ep->port));
3112 case VPPCOM_ATTR_GET_LIBC_EPFD:
3113 rv = session->libc_epfd;
3114 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3117 case VPPCOM_ATTR_SET_LIBC_EPFD:
3118 if (PREDICT_TRUE (buffer && buflen &&
3119 (*buflen == sizeof (session->libc_epfd))))
3121 session->libc_epfd = *(int *) buffer;
3122 *buflen = sizeof (session->libc_epfd);
3124 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3125 session->libc_epfd, *buflen);
3131 case VPPCOM_ATTR_GET_PROTOCOL:
3132 if (buffer && buflen && (*buflen >= sizeof (int)))
3134 *(int *) buffer = session->session_type;
3135 *buflen = sizeof (int);
3137 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3138 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3144 case VPPCOM_ATTR_GET_LISTEN:
3145 if (buffer && buflen && (*buflen >= sizeof (int)))
3147 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3148 VCL_SESS_ATTR_LISTEN);
3149 *buflen = sizeof (int);
3151 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3158 case VPPCOM_ATTR_GET_ERROR:
3159 if (buffer && buflen && (*buflen >= sizeof (int)))
3161 *(int *) buffer = 0;
3162 *buflen = sizeof (int);
3164 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3165 *(int *) buffer, *buflen);
3171 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3172 if (buffer && buflen && (*buflen >= sizeof (u32)))
3176 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3178 svm_fifo_size (session->tx_fifo) :
3179 vcm->cfg.tx_fifo_size);
3180 *buflen = sizeof (u32);
3182 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3183 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3190 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3191 if (buffer && buflen && (*buflen == sizeof (u32)))
3194 session->sndbuf_size = *(u32 *) buffer;
3195 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3196 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3203 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3204 if (buffer && buflen && (*buflen >= sizeof (u32)))
3208 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3210 svm_fifo_size (session->rx_fifo) :
3211 vcm->cfg.rx_fifo_size);
3212 *buflen = sizeof (u32);
3214 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3215 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3221 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3222 if (buffer && buflen && (*buflen == sizeof (u32)))
3225 session->rcvbuf_size = *(u32 *) buffer;
3226 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3227 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3234 case VPPCOM_ATTR_GET_REUSEADDR:
3235 if (buffer && buflen && (*buflen >= sizeof (int)))
3238 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3239 VCL_SESS_ATTR_REUSEADDR);
3240 *buflen = sizeof (int);
3242 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3243 *(int *) buffer, *buflen);
3249 case VPPCOM_ATTR_SET_REUSEADDR:
3250 if (buffer && buflen && (*buflen == sizeof (int)) &&
3251 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3254 if (*(int *) buffer)
3255 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
3257 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
3259 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3260 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEADDR),
3267 case VPPCOM_ATTR_GET_REUSEPORT:
3268 if (buffer && buflen && (*buflen >= sizeof (int)))
3271 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3272 VCL_SESS_ATTR_REUSEPORT);
3273 *buflen = sizeof (int);
3275 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3276 *(int *) buffer, *buflen);
3282 case VPPCOM_ATTR_SET_REUSEPORT:
3283 if (buffer && buflen && (*buflen == sizeof (int)) &&
3284 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3287 if (*(int *) buffer)
3288 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
3290 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
3292 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3293 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEPORT),
3300 case VPPCOM_ATTR_GET_BROADCAST:
3301 if (buffer && buflen && (*buflen >= sizeof (int)))
3304 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3305 VCL_SESS_ATTR_BROADCAST);
3306 *buflen = sizeof (int);
3308 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3309 *(int *) buffer, *buflen);
3315 case VPPCOM_ATTR_SET_BROADCAST:
3316 if (buffer && buflen && (*buflen == sizeof (int)))
3319 if (*(int *) buffer)
3320 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
3322 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
3324 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3325 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_BROADCAST),
3332 case VPPCOM_ATTR_GET_V6ONLY:
3333 if (buffer && buflen && (*buflen >= sizeof (int)))
3336 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3337 VCL_SESS_ATTR_V6ONLY);
3338 *buflen = sizeof (int);
3340 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3341 *(int *) buffer, *buflen);
3347 case VPPCOM_ATTR_SET_V6ONLY:
3348 if (buffer && buflen && (*buflen == sizeof (int)))
3351 if (*(int *) buffer)
3352 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
3354 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
3356 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3357 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_V6ONLY),
3364 case VPPCOM_ATTR_GET_KEEPALIVE:
3365 if (buffer && buflen && (*buflen >= sizeof (int)))
3368 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3369 VCL_SESS_ATTR_KEEPALIVE);
3370 *buflen = sizeof (int);
3372 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3373 *(int *) buffer, *buflen);
3379 case VPPCOM_ATTR_SET_KEEPALIVE:
3380 if (buffer && buflen && (*buflen == sizeof (int)))
3383 if (*(int *) buffer)
3384 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3386 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3388 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3389 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_KEEPALIVE),
3396 case VPPCOM_ATTR_GET_TCP_NODELAY:
3397 if (buffer && buflen && (*buflen >= sizeof (int)))
3400 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3401 VCL_SESS_ATTR_TCP_NODELAY);
3402 *buflen = sizeof (int);
3404 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3405 *(int *) buffer, *buflen);
3411 case VPPCOM_ATTR_SET_TCP_NODELAY:
3412 if (buffer && buflen && (*buflen == sizeof (int)))
3415 if (*(int *) buffer)
3416 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3418 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3420 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3421 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_NODELAY),
3428 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3429 if (buffer && buflen && (*buflen >= sizeof (int)))
3432 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3433 VCL_SESS_ATTR_TCP_KEEPIDLE);
3434 *buflen = sizeof (int);
3436 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3437 *(int *) buffer, *buflen);
3443 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3444 if (buffer && buflen && (*buflen == sizeof (int)))
3447 if (*(int *) buffer)
3448 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3450 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3452 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3453 VCL_SESS_ATTR_TEST (session->attr,
3454 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3460 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3461 if (buffer && buflen && (*buflen >= sizeof (int)))
3464 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3465 VCL_SESS_ATTR_TCP_KEEPINTVL);
3466 *buflen = sizeof (int);
3468 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3469 *(int *) buffer, *buflen);
3475 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3476 if (buffer && buflen && (*buflen == sizeof (int)))
3479 if (*(int *) buffer)
3480 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3482 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3484 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3485 VCL_SESS_ATTR_TEST (session->attr,
3486 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3492 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3493 if (buffer && buflen && (*buflen >= sizeof (u32)))
3496 *(u32 *) buffer = session->user_mss;
3497 *buflen = sizeof (int);
3499 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3500 *(int *) buffer, *buflen);
3506 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3507 if (buffer && buflen && (*buflen == sizeof (u32)))
3510 session->user_mss = *(u32 *) buffer;
3512 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3513 session->user_mss, *buflen);
3519 case VPPCOM_ATTR_SET_SHUT:
3520 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3521 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3522 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3523 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3526 case VPPCOM_ATTR_GET_SHUT:
3527 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3529 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3532 *(int *) buffer = SHUT_RD;
3533 else if (tmp_flags == 2)
3534 *(int *) buffer = SHUT_WR;
3535 else if (tmp_flags == 3)
3536 *(int *) buffer = SHUT_RDWR;
3537 *buflen = sizeof (int);
3548 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3549 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3551 vcl_worker_t *wrk = vcl_worker_get_current ();
3552 vcl_session_t *session;
3556 rv = vppcom_session_read (session_handle, buffer, buflen);
3557 else if (flags & MSG_PEEK)
3558 rv = vppcom_session_peek (session_handle, buffer, buflen);
3561 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3562 return VPPCOM_EAFNOSUPPORT;
3567 session = vcl_session_get_w_handle (wrk, session_handle);
3568 if (session->transport.is_ip4)
3569 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3570 sizeof (ip4_address_t));
3572 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3573 sizeof (ip6_address_t));
3574 ep->is_ip4 = session->transport.is_ip4;
3575 ep->port = session->transport.rmt_port;
3582 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3583 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3586 return VPPCOM_EINVAL;
3590 vcl_worker_t *wrk = vcl_worker_get_current ();
3593 s = vcl_session_get_w_handle (wrk, session_handle);
3595 return VPPCOM_EBADFD;
3597 if (s->session_type != VPPCOM_PROTO_UDP)
3598 return VPPCOM_EINVAL;
3600 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3601 if (PREDICT_FALSE (s->session_state == STATE_CLOSED))
3603 vcl_send_session_connect (wrk, s);
3607 s->transport.is_ip4 = ep->is_ip4;
3608 s->transport.rmt_port = ep->port;
3609 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3615 // TBD check the flags and do the right thing
3616 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3619 return (vppcom_session_write_inline (session_handle, buffer, buflen, 1));
3623 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3625 vcl_worker_t *wrk = vcl_worker_get_current ();
3626 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3627 u32 i, keep_trying = 1;
3628 svm_msg_q_msg_t msg;
3632 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3635 return VPPCOM_EFAULT;
3639 vcl_session_t *session;
3641 /* Dequeue all events and drop all unhandled io events */
3642 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3644 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3645 vcl_handle_mq_event (wrk, e);
3646 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3648 vec_reset_length (wrk->unhandled_evts_vector);
3650 for (i = 0; i < n_sids; i++)
3652 session = vcl_session_get (wrk, vp[i].sh);
3655 vp[i].revents = POLLHUP;
3662 if (POLLIN & vp[i].events)
3664 rv = vcl_session_read_ready (session);
3667 vp[i].revents |= POLLIN;
3674 case VPPCOM_ECONNRESET:
3675 vp[i].revents = POLLHUP;
3679 vp[i].revents = POLLERR;
3686 if (POLLOUT & vp[i].events)
3688 rv = vcl_session_write_ready (session);
3691 vp[i].revents |= POLLOUT;
3698 case VPPCOM_ECONNRESET:
3699 vp[i].revents = POLLHUP;
3703 vp[i].revents = POLLERR;
3710 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3712 vp[i].revents = POLLNVAL;
3716 if (wait_for_time != -1)
3717 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3719 while ((num_ev == 0) && keep_trying);
3725 vppcom_mq_epoll_fd (void)
3727 vcl_worker_t *wrk = vcl_worker_get_current ();
3728 return wrk->mqs_epfd;
3732 vppcom_session_index (vcl_session_handle_t session_handle)
3734 return session_handle & 0xFFFFFF;
3738 vppcom_session_worker (vcl_session_handle_t session_handle)
3740 return session_handle >> 24;
3744 vppcom_worker_register (void)
3750 if (!vcl_worker_alloc_and_init ())
3751 return VPPCOM_EEXIST;
3753 wrk = vcl_worker_get_current ();
3754 wrk_name = format (0, "%s-wrk-%u", vcm->app_name, wrk->wrk_index);
3756 rv = vppcom_connect_to_vpp ((char *) wrk_name);
3757 vec_free (wrk_name);
3760 return VPPCOM_EFAULT;
3762 if (vcl_worker_register_with_vpp ())
3763 return VPPCOM_EEXIST;
3769 vppcom_worker_unregister (void)
3771 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3772 vcl_set_worker_index (~0);
3776 vppcom_worker_index (void)
3778 return vcl_get_worker_index ();
3782 vppcom_worker_mqs_epfd (void)
3784 vcl_worker_t *wrk = vcl_worker_get_current ();
3785 if (!vcm->cfg.use_mq_eventfd)
3787 return wrk->mqs_epfd;
3791 vppcom_session_is_connectable_listener (uint32_t session_handle)
3793 vcl_session_t *session;
3794 vcl_worker_t *wrk = vcl_worker_get_current ();
3795 session = vcl_session_get_w_handle (wrk, session_handle);
3797 return VPPCOM_EBADFD;
3798 return vcl_session_is_connectable_listener (wrk, session);
3802 vppcom_session_listener (uint32_t session_handle)
3804 vcl_worker_t *wrk = vcl_worker_get_current ();
3805 vcl_session_t *listen_session, *session;
3806 session = vcl_session_get_w_handle (wrk, session_handle);
3808 return VPPCOM_EBADFD;
3809 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3810 return VPPCOM_EBADFD;
3811 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3812 if (!listen_session)
3813 return VPPCOM_EBADFD;
3814 return vcl_session_handle (listen_session);
3818 vppcom_session_n_accepted (uint32_t session_handle)
3820 vcl_worker_t *wrk = vcl_worker_get_current ();
3821 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3823 return VPPCOM_EBADFD;
3824 return session->n_accepted_sessions;
3828 * fd.io coding-style-patch-verification: ON
3831 * eval: (c-set-style "gnu")