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, "SCTP"))
1534 *proto = VPPCOM_PROTO_SCTP;
1535 else if (!strcmp (proto_str, "sctp"))
1536 *proto = VPPCOM_PROTO_SCTP;
1537 else if (!strcmp (proto_str, "TLS"))
1538 *proto = VPPCOM_PROTO_TLS;
1539 else if (!strcmp (proto_str, "tls"))
1540 *proto = VPPCOM_PROTO_TLS;
1541 else if (!strcmp (proto_str, "QUIC"))
1542 *proto = VPPCOM_PROTO_QUIC;
1543 else if (!strcmp (proto_str, "quic"))
1544 *proto = VPPCOM_PROTO_QUIC;
1551 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1554 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1555 vcl_worker_t *wrk = vcl_worker_get_current ();
1556 session_accepted_msg_t accepted_msg;
1557 vcl_session_t *listen_session = 0;
1558 vcl_session_t *client_session = 0;
1559 vcl_session_msg_t *evt;
1560 svm_msg_q_msg_t msg;
1565 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1566 if (!listen_session)
1567 return VPPCOM_EBADFD;
1569 listen_session_index = listen_session->session_index;
1570 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1573 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1575 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1576 accept_flags = evt->flags;
1577 accepted_msg = evt->accepted_msg;
1581 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1582 VCL_SESS_ATTR_NONBLOCK);
1585 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1586 return VPPCOM_EAGAIN;
1588 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1589 return VPPCOM_EAGAIN;
1591 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1592 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1594 vcl_handle_mq_event (wrk, e);
1595 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1598 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1599 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1605 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1606 listen_session_index);
1607 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1608 return VPPCOM_ECONNABORTED;
1610 listen_session = vcl_session_get (wrk, listen_session_index);
1611 client_session = vcl_session_get (wrk, client_session_index);
1613 if (flags & O_NONBLOCK)
1614 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1616 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1617 " flags %d, is_nonblocking %u", listen_session->session_index,
1618 listen_session->vpp_handle, client_session_index,
1619 client_session->vpp_handle, flags,
1620 VCL_SESS_ATTR_TEST (client_session->attr, VCL_SESS_ATTR_NONBLOCK));
1624 ep->is_ip4 = client_session->transport.is_ip4;
1625 ep->port = client_session->transport.rmt_port;
1626 if (client_session->transport.is_ip4)
1627 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1628 sizeof (ip4_address_t));
1630 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1631 sizeof (ip6_address_t));
1634 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1635 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1636 client_session_index, client_session->vpp_handle,
1637 format_ip46_address, &client_session->transport.rmt_ip,
1638 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1639 clib_net_to_host_u16 (client_session->transport.rmt_port),
1640 format_ip46_address, &client_session->transport.lcl_ip,
1641 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1642 clib_net_to_host_u16 (client_session->transport.lcl_port));
1643 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1644 client_session_index);
1647 * Session might have been closed already
1651 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1652 client_session->session_state = STATE_VPP_CLOSING;
1653 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1654 client_session->session_state = STATE_DISCONNECT;
1656 return vcl_session_handle (client_session);
1660 vcl_ip_copy_from_ep (ip46_address_t * ip, vppcom_endpt_t * ep)
1663 clib_memcpy_fast (&ip->ip4, ep->ip, sizeof (ip4_address_t));
1665 clib_memcpy_fast (&ip->ip6, ep->ip, sizeof (ip6_address_t));
1669 vcl_ip_copy_to_ep (ip46_address_t * ip, vppcom_endpt_t * ep, u8 is_ip4)
1671 ep->is_ip4 = is_ip4;
1673 clib_memcpy_fast (ep->ip, &ip->ip4, sizeof (ip4_address_t));
1675 clib_memcpy_fast (ep->ip, &ip->ip6, sizeof (ip6_address_t));
1679 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1681 vcl_worker_t *wrk = vcl_worker_get_current ();
1682 vcl_session_t *session = 0;
1686 session = vcl_session_get_w_handle (wrk, session_handle);
1688 return VPPCOM_EBADFD;
1689 session_index = session->session_index;
1691 if (PREDICT_FALSE (session->is_vep))
1693 VDBG (0, "ERROR: cannot connect epoll session %u!",
1694 session->session_index);
1695 return VPPCOM_EBADFD;
1698 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1700 VDBG (0, "session handle %u [0x%llx]: session already "
1701 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1702 session_handle, session->vpp_handle,
1703 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1704 &session->transport.rmt_ip, session->transport.is_ip4 ?
1705 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1706 clib_net_to_host_u16 (session->transport.rmt_port),
1707 vppcom_proto_str (session->session_type), session->session_state,
1708 vppcom_session_state_str (session->session_state));
1712 session->transport.is_ip4 = server_ep->is_ip4;
1713 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1714 session->transport.rmt_port = server_ep->port;
1715 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1717 VDBG (0, "session handle %u: connecting to server %s %U "
1718 "port %d proto %s", session_handle,
1719 session->transport.is_ip4 ? "IPv4" : "IPv6",
1720 format_ip46_address,
1721 &session->transport.rmt_ip, session->transport.is_ip4 ?
1722 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1723 clib_net_to_host_u16 (session->transport.rmt_port),
1724 vppcom_proto_str (session->session_type));
1726 vcl_send_session_connect (wrk, session);
1728 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK))
1729 return VPPCOM_EINPROGRESS;
1732 * Wait for reply from vpp if blocking
1734 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1735 vcm->cfg.session_timeout);
1737 session = vcl_session_get (wrk, session_index);
1738 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1739 session->vpp_handle, rv ? "failed" : "succeeded");
1745 vppcom_session_stream_connect (uint32_t session_handle,
1746 uint32_t parent_session_handle)
1748 vcl_worker_t *wrk = vcl_worker_get_current ();
1749 vcl_session_t *session, *parent_session;
1750 u32 session_index, parent_session_index;
1753 session = vcl_session_get_w_handle (wrk, session_handle);
1755 return VPPCOM_EBADFD;
1756 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1757 if (!parent_session)
1758 return VPPCOM_EBADFD;
1760 session_index = session->session_index;
1761 parent_session_index = parent_session->session_index;
1762 if (PREDICT_FALSE (session->is_vep))
1764 VDBG (0, "ERROR: cannot connect epoll session %u!",
1765 session->session_index);
1766 return VPPCOM_EBADFD;
1769 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1771 VDBG (0, "session handle %u [0x%llx]: session already "
1772 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1773 session_handle, session->vpp_handle,
1774 parent_session_handle, parent_session->vpp_handle,
1775 vppcom_proto_str (session->session_type), session->session_state,
1776 vppcom_session_state_str (session->session_state));
1780 /* Connect to quic session specifics */
1781 session->transport.is_ip4 = parent_session->transport.is_ip4;
1782 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1783 session->transport.rmt_port = 0;
1784 session->parent_handle = parent_session->vpp_handle;
1786 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1787 session_handle, parent_session_handle, parent_session->vpp_handle);
1790 * Send connect request and wait for reply from vpp
1792 vcl_send_session_connect (wrk, session);
1793 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1794 vcm->cfg.session_timeout);
1796 session->listener_index = parent_session_index;
1797 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1799 parent_session->n_accepted_sessions++;
1801 session = vcl_session_get (wrk, session_index);
1802 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1803 session->vpp_handle, rv ? "failed" : "succeeded");
1809 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1811 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1815 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1818 vcl_worker_t *wrk = vcl_worker_get_current ();
1819 int n_read = 0, is_nonblocking;
1820 vcl_session_t *s = 0;
1821 svm_fifo_t *rx_fifo;
1822 svm_msg_q_msg_t msg;
1827 if (PREDICT_FALSE (!buf))
1828 return VPPCOM_EINVAL;
1830 s = vcl_session_get_w_handle (wrk, session_handle);
1831 if (PREDICT_FALSE (!s || s->is_vep))
1832 return VPPCOM_EBADFD;
1834 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1836 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1837 s->session_index, s->vpp_handle, s->session_state,
1838 vppcom_session_state_str (s->session_state));
1839 return vcl_session_closed_error (s);
1842 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1843 is_ct = vcl_session_is_ct (s);
1844 mq = wrk->app_event_queue;
1845 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1848 if (svm_fifo_is_empty_cons (rx_fifo))
1852 if (vcl_session_is_closing (s))
1853 return vcl_session_closing_error (s);
1854 svm_fifo_unset_event (s->rx_fifo);
1855 return VPPCOM_EWOULDBLOCK;
1857 while (svm_fifo_is_empty_cons (rx_fifo))
1859 if (vcl_session_is_closing (s))
1860 return vcl_session_closing_error (s);
1862 svm_fifo_unset_event (s->rx_fifo);
1863 svm_msg_q_lock (mq);
1864 if (svm_msg_q_is_empty (mq))
1865 svm_msg_q_wait (mq);
1867 svm_msg_q_sub_w_lock (mq, &msg);
1868 e = svm_msg_q_msg_data (mq, &msg);
1869 svm_msg_q_unlock (mq);
1870 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1871 vcl_handle_mq_event (wrk, e);
1872 svm_msg_q_free_msg (mq, &msg);
1877 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1879 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1881 if (svm_fifo_is_empty_cons (rx_fifo))
1882 svm_fifo_unset_event (s->rx_fifo);
1884 /* Cut-through sessions might request tx notifications on rx fifos */
1885 if (PREDICT_FALSE (rx_fifo->want_deq_ntf))
1887 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1888 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1889 svm_fifo_reset_has_deq_ntf (s->rx_fifo);
1892 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1893 s->vpp_handle, n_read, rx_fifo);
1899 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1901 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1905 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1907 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1911 vppcom_session_read_segments (uint32_t session_handle,
1912 vppcom_data_segments_t ds)
1914 vcl_worker_t *wrk = vcl_worker_get_current ();
1915 int n_read = 0, is_nonblocking;
1916 vcl_session_t *s = 0;
1917 svm_fifo_t *rx_fifo;
1918 svm_msg_q_msg_t msg;
1923 s = vcl_session_get_w_handle (wrk, session_handle);
1924 if (PREDICT_FALSE (!s || s->is_vep))
1925 return VPPCOM_EBADFD;
1927 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1928 return vcl_session_closed_error (s);
1930 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1931 is_ct = vcl_session_is_ct (s);
1932 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1933 rx_fifo = s->rx_fifo;
1937 svm_fifo_unset_event (s->rx_fifo);
1939 if (svm_fifo_is_empty_cons (rx_fifo))
1943 svm_fifo_unset_event (rx_fifo);
1944 return VPPCOM_EWOULDBLOCK;
1946 while (svm_fifo_is_empty_cons (rx_fifo))
1948 if (vcl_session_is_closing (s))
1949 return vcl_session_closing_error (s);
1951 svm_fifo_unset_event (rx_fifo);
1952 svm_msg_q_lock (mq);
1953 if (svm_msg_q_is_empty (mq))
1954 svm_msg_q_wait (mq);
1956 svm_msg_q_sub_w_lock (mq, &msg);
1957 e = svm_msg_q_msg_data (mq, &msg);
1958 svm_msg_q_unlock (mq);
1959 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1960 vcl_handle_mq_event (wrk, e);
1961 svm_msg_q_free_msg (mq, &msg);
1965 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_seg_t *) ds);
1966 svm_fifo_unset_event (rx_fifo);
1972 vppcom_session_free_segments (uint32_t session_handle,
1973 vppcom_data_segments_t ds)
1975 vcl_worker_t *wrk = vcl_worker_get_current ();
1978 s = vcl_session_get_w_handle (wrk, session_handle);
1979 if (PREDICT_FALSE (!s || s->is_vep))
1982 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_seg_t *) ds);
1986 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
1988 u32 first_copy = clib_min (ds[0].len, max_bytes);
1989 clib_memcpy_fast (buf, ds[0].data, first_copy);
1990 if (first_copy < max_bytes)
1992 clib_memcpy_fast (buf + first_copy, ds[1].data,
1993 clib_min (ds[1].len, max_bytes - first_copy));
1999 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
2001 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
2005 vppcom_session_write_inline (uint32_t session_handle, void *buf, size_t n,
2008 vcl_worker_t *wrk = vcl_worker_get_current ();
2009 int n_write, is_nonblocking;
2010 vcl_session_t *s = 0;
2011 session_evt_type_t et;
2012 svm_msg_q_msg_t msg;
2013 svm_fifo_t *tx_fifo;
2018 if (PREDICT_FALSE (!buf || n == 0))
2019 return VPPCOM_EINVAL;
2021 s = vcl_session_get_w_handle (wrk, session_handle);
2022 if (PREDICT_FALSE (!s))
2023 return VPPCOM_EBADFD;
2025 if (PREDICT_FALSE (s->is_vep))
2027 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2028 " session!", s->session_index, s->vpp_handle);
2029 return VPPCOM_EBADFD;
2032 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2034 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2035 s->session_index, s->vpp_handle, s->session_state,
2036 vppcom_session_state_str (s->session_state));
2037 return vcl_session_closed_error (s);;
2040 is_ct = vcl_session_is_ct (s);
2041 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2042 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
2044 mq = wrk->app_event_queue;
2045 if (svm_fifo_is_full_prod (tx_fifo))
2049 return VPPCOM_EWOULDBLOCK;
2051 while (svm_fifo_is_full_prod (tx_fifo))
2053 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2054 if (vcl_session_is_closing (s))
2055 return vcl_session_closing_error (s);
2056 svm_msg_q_lock (mq);
2057 if (svm_msg_q_is_empty (mq))
2058 svm_msg_q_wait (mq);
2060 svm_msg_q_sub_w_lock (mq, &msg);
2061 e = svm_msg_q_msg_data (mq, &msg);
2062 svm_msg_q_unlock (mq);
2064 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
2065 vcl_handle_mq_event (wrk, e);
2066 svm_msg_q_free_msg (mq, &msg);
2070 et = SESSION_IO_EVT_TX;
2071 if (is_flush && !is_ct)
2072 et = SESSION_IO_EVT_TX_FLUSH;
2075 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2076 s->vpp_evt_q, buf, n, et,
2077 0 /* do_evt */ , SVM_Q_WAIT);
2079 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2080 0 /* do_evt */ , SVM_Q_WAIT);
2082 if (svm_fifo_set_event (s->tx_fifo))
2083 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
2086 ASSERT (n_write > 0);
2088 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2089 s->vpp_handle, n_write);
2095 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2097 return vppcom_session_write_inline (session_handle, buf, n,
2102 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2104 return vppcom_session_write_inline (session_handle, buf, n,
2108 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2109 if (PREDICT_FALSE (!_s->rx_fifo)) \
2111 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2113 if (!vcl_session_is_ct (_s)) \
2115 svm_fifo_unset_event (_s->rx_fifo); \
2116 if (svm_fifo_is_empty (_s->rx_fifo)) \
2119 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2121 svm_fifo_unset_event (_s->ct_rx_fifo); \
2122 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2128 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2129 unsigned long n_bits, unsigned long *read_map,
2130 unsigned long *write_map,
2131 unsigned long *except_map, u32 * bits_set)
2133 session_disconnected_msg_t *disconnected_msg;
2134 session_connected_msg_t *connected_msg;
2135 vcl_session_t *session;
2138 switch (e->event_type)
2140 case SESSION_IO_EVT_RX:
2141 sid = e->session_index;
2142 session = vcl_session_get (wrk, sid);
2145 vcl_fifo_rx_evt_valid_or_break (session);
2146 if (sid < n_bits && read_map)
2148 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2152 case SESSION_IO_EVT_TX:
2153 sid = e->session_index;
2154 session = vcl_session_get (wrk, sid);
2157 if (sid < n_bits && write_map)
2159 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2163 case SESSION_CTRL_EVT_ACCEPTED:
2164 session = vcl_session_accepted (wrk,
2165 (session_accepted_msg_t *) e->data);
2168 sid = session->session_index;
2169 if (sid < n_bits && read_map)
2171 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2175 case SESSION_CTRL_EVT_CONNECTED:
2176 connected_msg = (session_connected_msg_t *) e->data;
2177 sid = vcl_session_connected_handler (wrk, connected_msg);
2178 if (sid == VCL_INVALID_SESSION_INDEX)
2180 if (sid < n_bits && write_map)
2182 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2186 case SESSION_CTRL_EVT_DISCONNECTED:
2187 disconnected_msg = (session_disconnected_msg_t *) e->data;
2188 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2191 sid = session->session_index;
2192 if (sid < n_bits && except_map)
2194 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2198 case SESSION_CTRL_EVT_RESET:
2199 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2200 if (sid < n_bits && except_map)
2202 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2206 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2207 vcl_session_unlisten_reply_handler (wrk, e->data);
2209 case SESSION_CTRL_EVT_MIGRATED:
2210 vcl_session_migrated_handler (wrk, e->data);
2212 case SESSION_CTRL_EVT_CLEANUP:
2213 vcl_session_cleanup_handler (wrk, e->data);
2215 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2216 vcl_session_worker_update_reply_handler (wrk, e->data);
2218 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2219 vcl_session_req_worker_update_handler (wrk, e->data);
2221 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2222 vcl_session_app_add_segment_handler (wrk, e->data);
2224 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2225 vcl_session_app_del_segment_handler (wrk, e->data);
2228 clib_warning ("unhandled: %u", e->event_type);
2234 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2235 unsigned long n_bits, unsigned long *read_map,
2236 unsigned long *write_map, unsigned long *except_map,
2237 double time_to_wait, u32 * bits_set)
2239 svm_msg_q_msg_t *msg;
2243 svm_msg_q_lock (mq);
2244 if (svm_msg_q_is_empty (mq))
2248 svm_msg_q_unlock (mq);
2254 svm_msg_q_unlock (mq);
2257 else if (time_to_wait < 0)
2259 svm_msg_q_wait (mq);
2263 if (svm_msg_q_timedwait (mq, time_to_wait))
2265 svm_msg_q_unlock (mq);
2270 vcl_mq_dequeue_batch (wrk, mq, ~0);
2271 svm_msg_q_unlock (mq);
2273 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2275 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2276 e = svm_msg_q_msg_data (mq, msg);
2277 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2278 except_map, bits_set);
2279 svm_msg_q_free_msg (mq, msg);
2281 vec_reset_length (wrk->mq_msg_vector);
2282 vcl_handle_pending_wrk_updates (wrk);
2287 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2288 vcl_si_set * read_map, vcl_si_set * write_map,
2289 vcl_si_set * except_map, double time_to_wait,
2292 double wait = 0, start = 0;
2296 wait = time_to_wait;
2297 start = clib_time_now (&wrk->clib_time);
2302 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2303 write_map, except_map, wait, bits_set);
2309 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2317 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2318 vcl_si_set * read_map, vcl_si_set * write_map,
2319 vcl_si_set * except_map, double time_to_wait,
2322 vcl_mq_evt_conn_t *mqc;
2323 int __clib_unused n_read;
2327 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2328 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2329 vec_len (wrk->mq_events), time_to_wait);
2330 for (i = 0; i < n_mq_evts; i++)
2332 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2333 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2334 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2335 except_map, 0, bits_set);
2338 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2342 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2343 vcl_si_set * except_map, double time_to_wait)
2345 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2346 vcl_worker_t *wrk = vcl_worker_get_current ();
2347 vcl_session_t *session = 0;
2350 if (n_bits && read_map)
2352 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2353 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2354 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2355 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2357 if (n_bits && write_map)
2359 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2360 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2361 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2362 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2364 if (n_bits && except_map)
2366 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2367 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2368 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2369 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2379 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2380 if (!(session = vcl_session_get (wrk, sid)))
2382 if (except_map && sid < minbits)
2383 clib_bitmap_set_no_check (except_map, sid, 1);
2387 rv = svm_fifo_is_full_prod (session->tx_fifo);
2390 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2394 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2401 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2402 if (!(session = vcl_session_get (wrk, sid)))
2404 if (except_map && sid < minbits)
2405 clib_bitmap_set_no_check (except_map, sid, 1);
2409 rv = vcl_session_read_ready (session);
2412 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2420 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2422 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2423 read_map, write_map, except_map, &bits_set);
2425 vec_reset_length (wrk->unhandled_evts_vector);
2427 if (vcm->cfg.use_mq_eventfd)
2428 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2429 time_to_wait, &bits_set);
2431 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2432 time_to_wait, &bits_set);
2438 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2440 vcl_session_t *session;
2441 vppcom_epoll_t *vep;
2442 u32 sh = vep_handle;
2444 if (VPPCOM_DEBUG <= 2)
2447 session = vcl_session_get_w_handle (wrk, vep_handle);
2448 if (PREDICT_FALSE (!session))
2450 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2453 if (PREDICT_FALSE (!session->is_vep))
2455 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2458 vep = &session->vep;
2459 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2462 " is_vep_session = %u\n"
2463 " next_sh = 0x%x (%u)\n"
2464 "}\n", vep_handle, session->is_vep, session->is_vep_session,
2465 vep->next_sh, vep->next_sh);
2467 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2469 session = vcl_session_get_w_handle (wrk, sh);
2470 if (PREDICT_FALSE (!session))
2472 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2475 if (PREDICT_FALSE (session->is_vep))
2477 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2479 else if (PREDICT_FALSE (!session->is_vep_session))
2481 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2484 vep = &session->vep;
2485 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2486 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2487 sh, session->vep.vep_sh, vep_handle);
2488 if (session->is_vep_session)
2490 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2492 " next_sh = 0x%x (%u)\n"
2493 " prev_sh = 0x%x (%u)\n"
2494 " vep_sh = 0x%x (%u)\n"
2495 " ev.events = 0x%x\n"
2496 " ev.data.u64 = 0x%llx\n"
2499 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2500 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2501 vep->ev.data.u64, vep->et_mask);
2506 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2510 vppcom_epoll_create (void)
2512 vcl_worker_t *wrk = vcl_worker_get_current ();
2513 vcl_session_t *vep_session;
2515 vep_session = vcl_session_alloc (wrk);
2517 vep_session->is_vep = 1;
2518 vep_session->vep.vep_sh = ~0;
2519 vep_session->vep.next_sh = ~0;
2520 vep_session->vep.prev_sh = ~0;
2521 vep_session->vpp_handle = ~0;
2523 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2524 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2526 return vcl_session_handle (vep_session);
2530 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2531 struct epoll_event *event)
2533 vcl_worker_t *wrk = vcl_worker_get_current ();
2534 vcl_session_t *vep_session;
2535 vcl_session_t *session;
2538 if (vep_handle == session_handle)
2540 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2541 return VPPCOM_EINVAL;
2544 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2545 if (PREDICT_FALSE (!vep_session))
2547 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2548 return VPPCOM_EBADFD;
2550 if (PREDICT_FALSE (!vep_session->is_vep))
2552 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2553 return VPPCOM_EINVAL;
2556 ASSERT (vep_session->vep.vep_sh == ~0);
2557 ASSERT (vep_session->vep.prev_sh == ~0);
2559 session = vcl_session_get_w_handle (wrk, session_handle);
2560 if (PREDICT_FALSE (!session))
2562 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2563 return VPPCOM_EBADFD;
2565 if (PREDICT_FALSE (session->is_vep))
2567 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2568 return VPPCOM_EINVAL;
2574 if (PREDICT_FALSE (!event))
2576 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2577 return VPPCOM_EINVAL;
2579 if (vep_session->vep.next_sh != ~0)
2581 vcl_session_t *next_session;
2582 next_session = vcl_session_get_w_handle (wrk,
2583 vep_session->vep.next_sh);
2584 if (PREDICT_FALSE (!next_session))
2586 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2587 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2588 return VPPCOM_EBADFD;
2590 ASSERT (next_session->vep.prev_sh == vep_handle);
2591 next_session->vep.prev_sh = session_handle;
2593 session->vep.next_sh = vep_session->vep.next_sh;
2594 session->vep.prev_sh = vep_handle;
2595 session->vep.vep_sh = vep_handle;
2596 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2597 session->vep.ev = *event;
2598 session->is_vep = 0;
2599 session->is_vep_session = 1;
2600 vep_session->vep.next_sh = session_handle;
2602 if (session->tx_fifo)
2603 svm_fifo_add_want_deq_ntf (session->tx_fifo,
2604 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2606 /* Generate EPOLLOUT if tx fifo not full */
2607 if ((event->events & EPOLLOUT) &&
2608 (vcl_session_write_ready (session) > 0))
2610 session_event_t e = { 0 };
2611 e.event_type = SESSION_IO_EVT_TX;
2612 e.session_index = session->session_index;
2613 vec_add1 (wrk->unhandled_evts_vector, e);
2615 /* Generate EPOLLIN if rx fifo has data */
2616 if ((event->events & EPOLLIN) && (vcl_session_read_ready (session) > 0))
2618 session_event_t e = { 0 };
2619 e.event_type = SESSION_IO_EVT_RX;
2620 e.session_index = session->session_index;
2621 vec_add1 (wrk->unhandled_evts_vector, e);
2623 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2624 vep_handle, session_handle, event->events, event->data.u64);
2625 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2629 if (PREDICT_FALSE (!event))
2631 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2635 else if (PREDICT_FALSE (!session->is_vep_session))
2637 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2641 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2643 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2644 session_handle, session->vep.vep_sh, vep_handle);
2649 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2650 if ((event->events & EPOLLOUT) &&
2651 !(session->vep.ev.events & EPOLLOUT) &&
2652 (vcl_session_write_ready (session) > 0))
2654 session_event_t e = { 0 };
2655 e.event_type = SESSION_IO_EVT_TX;
2656 e.session_index = session->session_index;
2657 vec_add1 (wrk->unhandled_evts_vector, e);
2659 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2660 session->vep.ev = *event;
2661 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2662 vep_handle, session_handle, event->events, event->data.u64);
2666 if (PREDICT_FALSE (!session->is_vep_session))
2668 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2672 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2674 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2675 session_handle, session->vep.vep_sh, vep_handle);
2680 if (session->vep.prev_sh == vep_handle)
2681 vep_session->vep.next_sh = session->vep.next_sh;
2684 vcl_session_t *prev_session;
2685 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2686 if (PREDICT_FALSE (!prev_session))
2688 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2689 session->vep.prev_sh, session_handle);
2690 return VPPCOM_EBADFD;
2692 ASSERT (prev_session->vep.next_sh == session_handle);
2693 prev_session->vep.next_sh = session->vep.next_sh;
2695 if (session->vep.next_sh != ~0)
2697 vcl_session_t *next_session;
2698 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2699 if (PREDICT_FALSE (!next_session))
2701 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2702 session->vep.next_sh, session_handle);
2703 return VPPCOM_EBADFD;
2705 ASSERT (next_session->vep.prev_sh == session_handle);
2706 next_session->vep.prev_sh = session->vep.prev_sh;
2709 memset (&session->vep, 0, sizeof (session->vep));
2710 session->vep.next_sh = ~0;
2711 session->vep.prev_sh = ~0;
2712 session->vep.vep_sh = ~0;
2713 session->is_vep_session = 0;
2715 if (session->tx_fifo)
2716 svm_fifo_del_want_deq_ntf (session->tx_fifo, SVM_FIFO_NO_DEQ_NOTIF);
2718 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2720 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2724 VDBG (0, "Invalid operation (%d)!", op);
2728 vep_verify_epoll_chain (wrk, vep_handle);
2735 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2736 struct epoll_event *events, u32 * num_ev)
2738 session_disconnected_msg_t *disconnected_msg;
2739 session_connected_msg_t *connected_msg;
2740 u32 sid = ~0, session_events;
2741 u64 session_evt_data = ~0;
2742 vcl_session_t *session;
2745 switch (e->event_type)
2747 case SESSION_IO_EVT_RX:
2748 sid = e->session_index;
2749 if (!(session = vcl_session_get (wrk, sid)))
2751 vcl_fifo_rx_evt_valid_or_break (session);
2752 session_events = session->vep.ev.events;
2753 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2756 events[*num_ev].events |= EPOLLIN;
2757 session_evt_data = session->vep.ev.data.u64;
2758 session->has_rx_evt = 1;
2760 case SESSION_IO_EVT_TX:
2761 sid = e->session_index;
2762 if (!(session = vcl_session_get (wrk, sid)))
2764 session_events = session->vep.ev.events;
2765 if (!(EPOLLOUT & session_events))
2768 events[*num_ev].events |= EPOLLOUT;
2769 session_evt_data = session->vep.ev.data.u64;
2770 svm_fifo_reset_has_deq_ntf (session->tx_fifo);
2772 case SESSION_CTRL_EVT_ACCEPTED:
2773 session = vcl_session_accepted (wrk,
2774 (session_accepted_msg_t *) e->data);
2778 session_events = session->vep.ev.events;
2779 if (!(EPOLLIN & session_events))
2783 events[*num_ev].events |= EPOLLIN;
2784 session_evt_data = session->vep.ev.data.u64;
2786 case SESSION_CTRL_EVT_CONNECTED:
2787 connected_msg = (session_connected_msg_t *) e->data;
2788 sid = vcl_session_connected_handler (wrk, connected_msg);
2789 /* Generate EPOLLOUT because there's no connected event */
2790 if (!(session = vcl_session_get (wrk, sid)))
2792 session_events = session->vep.ev.events;
2793 if (!(EPOLLOUT & session_events))
2796 events[*num_ev].events |= EPOLLOUT;
2797 session_evt_data = session->vep.ev.data.u64;
2798 if (session->session_state & STATE_DETACHED)
2799 events[*num_ev].events |= EPOLLHUP;
2801 case SESSION_CTRL_EVT_DISCONNECTED:
2802 disconnected_msg = (session_disconnected_msg_t *) e->data;
2803 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2806 session_events = session->vep.ev.events;
2808 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2809 session_evt_data = session->vep.ev.data.u64;
2811 case SESSION_CTRL_EVT_RESET:
2812 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2813 if (!(session = vcl_session_get (wrk, sid)))
2815 session_events = session->vep.ev.events;
2817 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2818 session_evt_data = session->vep.ev.data.u64;
2820 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2821 vcl_session_unlisten_reply_handler (wrk, e->data);
2823 case SESSION_CTRL_EVT_MIGRATED:
2824 vcl_session_migrated_handler (wrk, e->data);
2826 case SESSION_CTRL_EVT_CLEANUP:
2827 vcl_session_cleanup_handler (wrk, e->data);
2829 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2830 vcl_session_req_worker_update_handler (wrk, e->data);
2832 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2833 vcl_session_worker_update_reply_handler (wrk, e->data);
2835 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2836 vcl_session_app_add_segment_handler (wrk, e->data);
2838 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2839 vcl_session_app_del_segment_handler (wrk, e->data);
2842 VDBG (0, "unhandled: %u", e->event_type);
2848 events[*num_ev].data.u64 = session_evt_data;
2849 if (EPOLLONESHOT & session_events)
2851 session = vcl_session_get (wrk, sid);
2852 session->vep.ev.events = 0;
2859 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2860 struct epoll_event *events, u32 maxevents,
2861 double wait_for_time, u32 * num_ev)
2863 svm_msg_q_msg_t *msg;
2867 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2868 goto handle_dequeued;
2870 svm_msg_q_lock (mq);
2871 if (svm_msg_q_is_empty (mq))
2875 svm_msg_q_unlock (mq);
2878 else if (wait_for_time < 0)
2880 svm_msg_q_wait (mq);
2884 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2886 svm_msg_q_unlock (mq);
2891 ASSERT (maxevents > *num_ev);
2892 vcl_mq_dequeue_batch (wrk, mq, maxevents - *num_ev);
2893 svm_msg_q_unlock (mq);
2896 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2898 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2899 e = svm_msg_q_msg_data (mq, msg);
2900 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2901 svm_msg_q_free_msg (mq, msg);
2903 vec_reset_length (wrk->mq_msg_vector);
2904 vcl_handle_pending_wrk_updates (wrk);
2909 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2910 int maxevents, u32 n_evts, double wait_for_time)
2912 double wait = 0, start = 0, now;
2916 wait = wait_for_time;
2917 start = clib_time_now (&wrk->clib_time);
2922 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2929 now = clib_time_now (&wrk->clib_time);
2930 wait -= now - start;
2939 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2940 int maxevents, u32 n_evts, double wait_for_time)
2942 vcl_mq_evt_conn_t *mqc;
2943 int __clib_unused n_read;
2947 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2949 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2950 vec_len (wrk->mq_events), wait_for_time);
2951 for (i = 0; i < n_mq_evts; i++)
2953 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2954 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2955 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
2957 if (!n_evts && n_mq_evts > 0)
2960 return (int) n_evts;
2964 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
2965 int maxevents, double wait_for_time)
2967 vcl_worker_t *wrk = vcl_worker_get_current ();
2968 vcl_session_t *vep_session;
2972 if (PREDICT_FALSE (maxevents <= 0))
2974 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
2975 return VPPCOM_EINVAL;
2978 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2980 return VPPCOM_EBADFD;
2982 if (PREDICT_FALSE (!vep_session->is_vep))
2984 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
2985 return VPPCOM_EINVAL;
2988 memset (events, 0, sizeof (*events) * maxevents);
2990 if (vec_len (wrk->unhandled_evts_vector))
2992 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2994 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
2996 if (n_evts == maxevents)
2998 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3002 vec_reset_length (wrk->unhandled_evts_vector);
3005 if (vcm->cfg.use_mq_eventfd)
3006 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3009 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3014 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3015 void *buffer, uint32_t * buflen)
3017 vcl_worker_t *wrk = vcl_worker_get_current ();
3018 vcl_session_t *session;
3020 u32 *flags = buffer, tmp_flags = 0;
3021 vppcom_endpt_t *ep = buffer;
3023 session = vcl_session_get_w_handle (wrk, session_handle);
3025 return VPPCOM_EBADFD;
3029 case VPPCOM_ATTR_GET_NREAD:
3030 rv = vcl_session_read_ready (session);
3031 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3035 case VPPCOM_ATTR_GET_NWRITE:
3036 rv = vcl_session_write_ready (session);
3037 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3041 case VPPCOM_ATTR_GET_FLAGS:
3042 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3044 *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr,
3045 VCL_SESS_ATTR_NONBLOCK));
3046 *buflen = sizeof (*flags);
3047 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3048 "is_nonblocking = %u", session_handle, *flags,
3049 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3055 case VPPCOM_ATTR_SET_FLAGS:
3056 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3058 if (*flags & O_NONBLOCK)
3059 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
3061 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
3063 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3064 " is_nonblocking = %u", session_handle, *flags,
3065 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3071 case VPPCOM_ATTR_GET_PEER_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.rmt_port;
3077 if (session->transport.is_ip4)
3078 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3079 sizeof (ip4_address_t));
3081 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3082 sizeof (ip6_address_t));
3083 *buflen = sizeof (*ep);
3084 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3085 "addr = %U, port %u", session_handle, ep->is_ip4,
3086 format_ip46_address, &session->transport.rmt_ip,
3087 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3088 clib_net_to_host_u16 (ep->port));
3094 case VPPCOM_ATTR_GET_LCL_ADDR:
3095 if (PREDICT_TRUE (buffer && buflen &&
3096 (*buflen >= sizeof (*ep)) && ep->ip))
3098 ep->is_ip4 = session->transport.is_ip4;
3099 ep->port = session->transport.lcl_port;
3100 if (session->transport.is_ip4)
3101 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3102 sizeof (ip4_address_t));
3104 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3105 sizeof (ip6_address_t));
3106 *buflen = sizeof (*ep);
3107 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3108 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3109 &session->transport.lcl_ip,
3110 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3111 clib_net_to_host_u16 (ep->port));
3117 case VPPCOM_ATTR_SET_LCL_ADDR:
3118 if (PREDICT_TRUE (buffer && buflen &&
3119 (*buflen >= sizeof (*ep)) && ep->ip))
3121 session->transport.is_ip4 = ep->is_ip4;
3122 session->transport.lcl_port = ep->port;
3123 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3124 *buflen = sizeof (*ep);
3125 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3126 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3127 &session->transport.lcl_ip,
3128 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3129 clib_net_to_host_u16 (ep->port));
3135 case VPPCOM_ATTR_GET_LIBC_EPFD:
3136 rv = session->libc_epfd;
3137 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3140 case VPPCOM_ATTR_SET_LIBC_EPFD:
3141 if (PREDICT_TRUE (buffer && buflen &&
3142 (*buflen == sizeof (session->libc_epfd))))
3144 session->libc_epfd = *(int *) buffer;
3145 *buflen = sizeof (session->libc_epfd);
3147 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3148 session->libc_epfd, *buflen);
3154 case VPPCOM_ATTR_GET_PROTOCOL:
3155 if (buffer && buflen && (*buflen >= sizeof (int)))
3157 *(int *) buffer = session->session_type;
3158 *buflen = sizeof (int);
3160 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3161 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3167 case VPPCOM_ATTR_GET_LISTEN:
3168 if (buffer && buflen && (*buflen >= sizeof (int)))
3170 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3171 VCL_SESS_ATTR_LISTEN);
3172 *buflen = sizeof (int);
3174 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3181 case VPPCOM_ATTR_GET_ERROR:
3182 if (buffer && buflen && (*buflen >= sizeof (int)))
3184 *(int *) buffer = 0;
3185 *buflen = sizeof (int);
3187 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3188 *(int *) buffer, *buflen);
3194 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3195 if (buffer && buflen && (*buflen >= sizeof (u32)))
3199 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3200 session->tx_fifo ? session->tx_fifo->nitems :
3201 vcm->cfg.tx_fifo_size);
3202 *buflen = sizeof (u32);
3204 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3205 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3212 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3213 if (buffer && buflen && (*buflen == sizeof (u32)))
3216 session->sndbuf_size = *(u32 *) buffer;
3217 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3218 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3225 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3226 if (buffer && buflen && (*buflen >= sizeof (u32)))
3230 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3231 session->rx_fifo ? session->rx_fifo->nitems :
3232 vcm->cfg.rx_fifo_size);
3233 *buflen = sizeof (u32);
3235 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3236 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3242 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3243 if (buffer && buflen && (*buflen == sizeof (u32)))
3246 session->rcvbuf_size = *(u32 *) buffer;
3247 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3248 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3255 case VPPCOM_ATTR_GET_REUSEADDR:
3256 if (buffer && buflen && (*buflen >= sizeof (int)))
3259 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3260 VCL_SESS_ATTR_REUSEADDR);
3261 *buflen = sizeof (int);
3263 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3264 *(int *) buffer, *buflen);
3270 case VPPCOM_ATTR_SET_REUSEADDR:
3271 if (buffer && buflen && (*buflen == sizeof (int)) &&
3272 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3275 if (*(int *) buffer)
3276 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
3278 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
3280 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3281 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEADDR),
3288 case VPPCOM_ATTR_GET_REUSEPORT:
3289 if (buffer && buflen && (*buflen >= sizeof (int)))
3292 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3293 VCL_SESS_ATTR_REUSEPORT);
3294 *buflen = sizeof (int);
3296 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3297 *(int *) buffer, *buflen);
3303 case VPPCOM_ATTR_SET_REUSEPORT:
3304 if (buffer && buflen && (*buflen == sizeof (int)) &&
3305 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3308 if (*(int *) buffer)
3309 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
3311 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
3313 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3314 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEPORT),
3321 case VPPCOM_ATTR_GET_BROADCAST:
3322 if (buffer && buflen && (*buflen >= sizeof (int)))
3325 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3326 VCL_SESS_ATTR_BROADCAST);
3327 *buflen = sizeof (int);
3329 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3330 *(int *) buffer, *buflen);
3336 case VPPCOM_ATTR_SET_BROADCAST:
3337 if (buffer && buflen && (*buflen == sizeof (int)))
3340 if (*(int *) buffer)
3341 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
3343 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
3345 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3346 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_BROADCAST),
3353 case VPPCOM_ATTR_GET_V6ONLY:
3354 if (buffer && buflen && (*buflen >= sizeof (int)))
3357 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3358 VCL_SESS_ATTR_V6ONLY);
3359 *buflen = sizeof (int);
3361 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3362 *(int *) buffer, *buflen);
3368 case VPPCOM_ATTR_SET_V6ONLY:
3369 if (buffer && buflen && (*buflen == sizeof (int)))
3372 if (*(int *) buffer)
3373 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
3375 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
3377 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3378 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_V6ONLY),
3385 case VPPCOM_ATTR_GET_KEEPALIVE:
3386 if (buffer && buflen && (*buflen >= sizeof (int)))
3389 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3390 VCL_SESS_ATTR_KEEPALIVE);
3391 *buflen = sizeof (int);
3393 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3394 *(int *) buffer, *buflen);
3400 case VPPCOM_ATTR_SET_KEEPALIVE:
3401 if (buffer && buflen && (*buflen == sizeof (int)))
3404 if (*(int *) buffer)
3405 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3407 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3409 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3410 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_KEEPALIVE),
3417 case VPPCOM_ATTR_GET_TCP_NODELAY:
3418 if (buffer && buflen && (*buflen >= sizeof (int)))
3421 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3422 VCL_SESS_ATTR_TCP_NODELAY);
3423 *buflen = sizeof (int);
3425 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3426 *(int *) buffer, *buflen);
3432 case VPPCOM_ATTR_SET_TCP_NODELAY:
3433 if (buffer && buflen && (*buflen == sizeof (int)))
3436 if (*(int *) buffer)
3437 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3439 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3441 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3442 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_NODELAY),
3449 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3450 if (buffer && buflen && (*buflen >= sizeof (int)))
3453 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3454 VCL_SESS_ATTR_TCP_KEEPIDLE);
3455 *buflen = sizeof (int);
3457 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3458 *(int *) buffer, *buflen);
3464 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3465 if (buffer && buflen && (*buflen == sizeof (int)))
3468 if (*(int *) buffer)
3469 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3471 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3473 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3474 VCL_SESS_ATTR_TEST (session->attr,
3475 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3481 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3482 if (buffer && buflen && (*buflen >= sizeof (int)))
3485 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3486 VCL_SESS_ATTR_TCP_KEEPINTVL);
3487 *buflen = sizeof (int);
3489 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3490 *(int *) buffer, *buflen);
3496 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3497 if (buffer && buflen && (*buflen == sizeof (int)))
3500 if (*(int *) buffer)
3501 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3503 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3505 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3506 VCL_SESS_ATTR_TEST (session->attr,
3507 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3513 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3514 if (buffer && buflen && (*buflen >= sizeof (u32)))
3517 *(u32 *) buffer = session->user_mss;
3518 *buflen = sizeof (int);
3520 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3521 *(int *) buffer, *buflen);
3527 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3528 if (buffer && buflen && (*buflen == sizeof (u32)))
3531 session->user_mss = *(u32 *) buffer;
3533 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3534 session->user_mss, *buflen);
3540 case VPPCOM_ATTR_SET_SHUT:
3541 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3542 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3543 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3544 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3547 case VPPCOM_ATTR_GET_SHUT:
3548 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3550 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3553 *(int *) buffer = SHUT_RD;
3554 else if (tmp_flags == 2)
3555 *(int *) buffer = SHUT_WR;
3556 else if (tmp_flags == 3)
3557 *(int *) buffer = SHUT_RDWR;
3558 *buflen = sizeof (int);
3569 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3570 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3572 vcl_worker_t *wrk = vcl_worker_get_current ();
3574 vcl_session_t *session = 0;
3578 session = vcl_session_get_w_handle (wrk, session_handle);
3579 if (PREDICT_FALSE (!session))
3581 VDBG (0, "sh 0x%llx is closed!", session_handle);
3582 return VPPCOM_EBADFD;
3584 ep->is_ip4 = session->transport.is_ip4;
3585 ep->port = session->transport.rmt_port;
3589 rv = vppcom_session_read (session_handle, buffer, buflen);
3590 else if (flags & MSG_PEEK)
3591 rv = vppcom_session_peek (session_handle, buffer, buflen);
3594 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3595 return VPPCOM_EAFNOSUPPORT;
3600 if (session->transport.is_ip4)
3601 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3602 sizeof (ip4_address_t));
3604 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3605 sizeof (ip6_address_t));
3612 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3613 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3616 return VPPCOM_EINVAL;
3621 return VPPCOM_EINVAL;
3626 // TBD check the flags and do the right thing
3627 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3630 return (vppcom_session_write_inline (session_handle, buffer, buflen, 1));
3634 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3636 vcl_worker_t *wrk = vcl_worker_get_current ();
3637 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3638 u32 i, keep_trying = 1;
3639 svm_msg_q_msg_t msg;
3643 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3646 return VPPCOM_EFAULT;
3650 vcl_session_t *session;
3652 /* Dequeue all events and drop all unhandled io events */
3653 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3655 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3656 vcl_handle_mq_event (wrk, e);
3657 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3659 vec_reset_length (wrk->unhandled_evts_vector);
3661 for (i = 0; i < n_sids; i++)
3663 session = vcl_session_get (wrk, vp[i].sh);
3666 vp[i].revents = POLLHUP;
3673 if (POLLIN & vp[i].events)
3675 rv = vcl_session_read_ready (session);
3678 vp[i].revents |= POLLIN;
3685 case VPPCOM_ECONNRESET:
3686 vp[i].revents = POLLHUP;
3690 vp[i].revents = POLLERR;
3697 if (POLLOUT & vp[i].events)
3699 rv = vcl_session_write_ready (session);
3702 vp[i].revents |= POLLOUT;
3709 case VPPCOM_ECONNRESET:
3710 vp[i].revents = POLLHUP;
3714 vp[i].revents = POLLERR;
3721 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3723 vp[i].revents = POLLNVAL;
3727 if (wait_for_time != -1)
3728 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3730 while ((num_ev == 0) && keep_trying);
3736 vppcom_mq_epoll_fd (void)
3738 vcl_worker_t *wrk = vcl_worker_get_current ();
3739 return wrk->mqs_epfd;
3743 vppcom_session_index (vcl_session_handle_t session_handle)
3745 return session_handle & 0xFFFFFF;
3749 vppcom_session_worker (vcl_session_handle_t session_handle)
3751 return session_handle >> 24;
3755 vppcom_worker_register (void)
3761 if (!vcl_worker_alloc_and_init ())
3762 return VPPCOM_EEXIST;
3764 wrk = vcl_worker_get_current ();
3765 wrk_name = format (0, "%s-wrk-%u", vcm->app_name, wrk->wrk_index);
3767 rv = vppcom_connect_to_vpp ((char *) wrk_name);
3768 vec_free (wrk_name);
3771 return VPPCOM_EFAULT;
3773 if (vcl_worker_register_with_vpp ())
3774 return VPPCOM_EEXIST;
3780 vppcom_worker_unregister (void)
3782 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3783 vcl_set_worker_index (~0);
3787 vppcom_worker_index (void)
3789 return vcl_get_worker_index ();
3793 vppcom_worker_mqs_epfd (void)
3795 vcl_worker_t *wrk = vcl_worker_get_current ();
3796 if (!vcm->cfg.use_mq_eventfd)
3798 return wrk->mqs_epfd;
3802 vppcom_session_is_connectable_listener (uint32_t session_handle)
3804 vcl_session_t *session;
3805 vcl_worker_t *wrk = vcl_worker_get_current ();
3806 session = vcl_session_get_w_handle (wrk, session_handle);
3808 return VPPCOM_EBADFD;
3809 return vcl_session_is_connectable_listener (wrk, session);
3813 vppcom_session_listener (uint32_t session_handle)
3815 vcl_worker_t *wrk = vcl_worker_get_current ();
3816 vcl_session_t *listen_session, *session;
3817 session = vcl_session_get_w_handle (wrk, session_handle);
3819 return VPPCOM_EBADFD;
3820 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3821 return VPPCOM_EBADFD;
3822 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3823 if (!listen_session)
3824 return VPPCOM_EBADFD;
3825 return vcl_session_handle (listen_session);
3829 vppcom_session_n_accepted (uint32_t session_handle)
3831 vcl_worker_t *wrk = vcl_worker_get_current ();
3832 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3834 return VPPCOM_EBADFD;
3835 return session->n_accepted_sessions;
3839 * fd.io coding-style-patch-verification: ON
3842 * eval: (c-set-style "gnu")