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->lcl_port = s->transport.lcl_port;
235 mp->proto = s->session_type;
236 if (s->flags & VCL_SESSION_F_CONNECTED)
237 mp->flags |= TRANSPORT_CFG_F_CONNECTED;
238 app_send_ctrl_evt_to_vpp (mq, app_evt);
242 vcl_send_session_unlisten (vcl_worker_t * wrk, vcl_session_t * s)
244 app_session_evt_t _app_evt, *app_evt = &_app_evt;
245 session_unlisten_msg_t *mp;
248 mq = vcl_worker_ctrl_mq (wrk);
249 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_UNLISTEN);
250 mp = (session_unlisten_msg_t *) app_evt->evt->data;
251 memset (mp, 0, sizeof (*mp));
252 mp->client_index = wrk->my_client_index;
253 mp->wrk_index = wrk->vpp_wrk_index;
254 mp->handle = s->vpp_handle;
255 mp->context = wrk->wrk_index;
256 app_send_ctrl_evt_to_vpp (mq, app_evt);
260 vcl_send_session_disconnect (vcl_worker_t * wrk, vcl_session_t * s)
262 app_session_evt_t _app_evt, *app_evt = &_app_evt;
263 session_disconnect_msg_t *mp;
266 /* Send to thread that owns the session */
268 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_DISCONNECT);
269 mp = (session_disconnect_msg_t *) app_evt->evt->data;
270 memset (mp, 0, sizeof (*mp));
271 mp->client_index = wrk->my_client_index;
272 mp->handle = s->vpp_handle;
273 app_send_ctrl_evt_to_vpp (mq, app_evt);
277 vcl_send_app_detach (vcl_worker_t * wrk)
279 app_session_evt_t _app_evt, *app_evt = &_app_evt;
280 session_app_detach_msg_t *mp;
283 mq = vcl_worker_ctrl_mq (wrk);
284 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_DETACH);
285 mp = (session_app_detach_msg_t *) app_evt->evt->data;
286 memset (mp, 0, sizeof (*mp));
287 mp->client_index = wrk->my_client_index;
288 app_send_ctrl_evt_to_vpp (mq, app_evt);
292 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
293 session_handle_t handle, int retval)
295 app_session_evt_t _app_evt, *app_evt = &_app_evt;
296 session_accepted_reply_msg_t *rmp;
297 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
298 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
299 rmp->handle = handle;
300 rmp->context = context;
301 rmp->retval = retval;
302 app_send_ctrl_evt_to_vpp (mq, app_evt);
306 vcl_send_session_disconnected_reply (svm_msg_q_t * mq, u32 context,
307 session_handle_t handle, int retval)
309 app_session_evt_t _app_evt, *app_evt = &_app_evt;
310 session_disconnected_reply_msg_t *rmp;
311 app_alloc_ctrl_evt_to_vpp (mq, app_evt,
312 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
313 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
314 rmp->handle = handle;
315 rmp->context = context;
316 rmp->retval = retval;
317 app_send_ctrl_evt_to_vpp (mq, app_evt);
321 vcl_send_session_reset_reply (svm_msg_q_t * mq, u32 context,
322 session_handle_t handle, int retval)
324 app_session_evt_t _app_evt, *app_evt = &_app_evt;
325 session_reset_reply_msg_t *rmp;
326 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_RESET_REPLY);
327 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
328 rmp->handle = handle;
329 rmp->context = context;
330 rmp->retval = retval;
331 app_send_ctrl_evt_to_vpp (mq, app_evt);
335 vcl_send_session_worker_update (vcl_worker_t * wrk, vcl_session_t * s,
338 app_session_evt_t _app_evt, *app_evt = &_app_evt;
339 session_worker_update_msg_t *mp;
342 mq = vcl_session_vpp_evt_q (wrk, s);
343 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_WORKER_UPDATE);
344 mp = (session_worker_update_msg_t *) app_evt->evt->data;
345 mp->client_index = wrk->my_client_index;
346 mp->handle = s->vpp_handle;
347 mp->req_wrk_index = wrk->vpp_wrk_index;
348 mp->wrk_index = wrk_index;
349 app_send_ctrl_evt_to_vpp (mq, app_evt);
353 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp,
356 vcl_session_t *session, *listen_session;
357 svm_fifo_t *rx_fifo, *tx_fifo;
361 session = vcl_session_alloc (wrk);
363 listen_session = vcl_session_get (wrk, ls_index);
364 if (listen_session->vpp_handle != mp->listener_handle)
366 VDBG (0, "ERROR: listener handle %lu does not match session %u",
367 mp->listener_handle, ls_index);
371 if (vcl_segment_is_not_mounted (wrk, mp->segment_handle))
373 VDBG (0, "ERROR: segment for session %u is not mounted!",
374 session->session_index);
378 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
379 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
380 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
382 rx_fifo->client_session_index = session->session_index;
383 tx_fifo->client_session_index = session->session_index;
384 rx_fifo->client_thread_index = vcl_get_worker_index ();
385 tx_fifo->client_thread_index = vcl_get_worker_index ();
386 vpp_wrk_index = tx_fifo->master_thread_index;
387 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
388 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
390 session->vpp_handle = mp->handle;
391 session->vpp_thread_index = rx_fifo->master_thread_index;
392 session->rx_fifo = rx_fifo;
393 session->tx_fifo = tx_fifo;
395 session->session_state = STATE_ACCEPT;
396 session->transport.rmt_port = mp->rmt.port;
397 session->transport.is_ip4 = mp->rmt.is_ip4;
398 clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
399 sizeof (ip46_address_t));
401 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
402 session->transport.lcl_port = listen_session->transport.lcl_port;
403 session->transport.lcl_ip = listen_session->transport.lcl_ip;
404 session->session_type = listen_session->session_type;
405 session->is_dgram = vcl_proto_is_dgram (session->session_type);
406 session->listener_index = listen_session->session_index;
407 listen_session->n_accepted_sessions++;
409 VDBG (1, "session %u [0x%llx]: client accept request from %s address %U"
410 " port %d queue %p!", session->session_index, mp->handle,
411 mp->rmt.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->rmt.ip,
412 mp->rmt.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
413 clib_net_to_host_u16 (mp->rmt.port), session->vpp_evt_q);
414 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
416 vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context,
417 session->vpp_handle, 0);
419 return session->session_index;
422 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
423 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
424 VNET_API_ERROR_INVALID_ARGUMENT);
425 vcl_session_free (wrk, session);
426 return VCL_INVALID_SESSION_INDEX;
430 vcl_session_connected_handler (vcl_worker_t * wrk,
431 session_connected_msg_t * mp)
433 u32 session_index, vpp_wrk_index;
434 svm_fifo_t *rx_fifo, *tx_fifo;
435 vcl_session_t *session = 0;
437 session_index = mp->context;
438 session = vcl_session_get (wrk, session_index);
441 VDBG (0, "ERROR: vpp handle 0x%llx has no session index (%u)!",
442 mp->handle, session_index);
443 return VCL_INVALID_SESSION_INDEX;
447 VDBG (0, "ERROR: session index %u: connect failed! %U",
448 session_index, format_session_error, mp->retval);
449 session->session_state = STATE_DETACHED | STATE_DISCONNECT;
450 session->vpp_handle = mp->handle;
451 return session_index;
454 session->vpp_handle = mp->handle;
455 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
457 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
458 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
459 if (vcl_segment_is_not_mounted (wrk, mp->segment_handle))
461 VDBG (0, "segment for session %u is not mounted!",
462 session->session_index);
463 session->session_state = STATE_DETACHED | STATE_DISCONNECT;
464 vcl_send_session_disconnect (wrk, session);
465 return session_index;
468 rx_fifo->client_session_index = session_index;
469 tx_fifo->client_session_index = session_index;
470 rx_fifo->client_thread_index = vcl_get_worker_index ();
471 tx_fifo->client_thread_index = vcl_get_worker_index ();
473 vpp_wrk_index = tx_fifo->master_thread_index;
474 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
475 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
479 session->ct_rx_fifo = uword_to_pointer (mp->ct_rx_fifo, svm_fifo_t *);
480 session->ct_tx_fifo = uword_to_pointer (mp->ct_tx_fifo, svm_fifo_t *);
481 if (vcl_segment_is_not_mounted (wrk, mp->ct_segment_handle))
483 VDBG (0, "ct segment for session %u is not mounted!",
484 session->session_index);
485 session->session_state = STATE_DETACHED | STATE_DISCONNECT;
486 vcl_send_session_disconnect (wrk, session);
487 return session_index;
491 session->rx_fifo = rx_fifo;
492 session->tx_fifo = tx_fifo;
493 session->vpp_thread_index = rx_fifo->master_thread_index;
494 session->transport.is_ip4 = mp->lcl.is_ip4;
495 clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
496 sizeof (session->transport.lcl_ip));
497 session->transport.lcl_port = mp->lcl.port;
498 session->session_state = STATE_CONNECT;
500 /* Add it to lookup table */
501 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
503 VDBG (1, "session %u [0x%llx] connected! rx_fifo %p, refcnt %d, tx_fifo %p,"
504 " refcnt %d", session_index, mp->handle, session->rx_fifo,
505 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
507 return session_index;
511 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
513 vcl_session_msg_t *accepted_msg;
516 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
518 accepted_msg = &session->accept_evts_fifo[i];
519 if (accepted_msg->accepted_msg.handle == handle)
521 accepted_msg->flags |= flags;
529 vcl_session_reset_handler (vcl_worker_t * wrk,
530 session_reset_msg_t * reset_msg)
532 vcl_session_t *session;
535 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
536 session = vcl_session_get (wrk, sid);
539 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
540 return VCL_INVALID_SESSION_INDEX;
543 /* Caught a reset before actually accepting the session */
544 if (session->session_state == STATE_LISTEN)
547 if (!vcl_flag_accepted_session (session, reset_msg->handle,
548 VCL_ACCEPTED_F_RESET))
549 VDBG (0, "session was not accepted!");
550 return VCL_INVALID_SESSION_INDEX;
553 session->session_state = STATE_DISCONNECT;
554 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
559 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
561 vcl_session_t *session;
562 u32 sid = mp->context;
564 session = vcl_session_get (wrk, sid);
567 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
568 format_session_error, mp->retval);
571 session->session_state = STATE_DETACHED;
572 session->vpp_handle = mp->handle;
577 VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!",
579 return VCL_INVALID_SESSION_INDEX;
583 session->vpp_handle = mp->handle;
584 session->transport.is_ip4 = mp->lcl_is_ip4;
585 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
586 sizeof (ip46_address_t));
587 session->transport.lcl_port = mp->lcl_port;
588 vcl_session_table_add_listener (wrk, mp->handle, sid);
589 session->session_state = STATE_LISTEN;
591 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
592 vec_validate (wrk->vpp_event_queues, 0);
593 wrk->vpp_event_queues[0] = session->vpp_evt_q;
595 if (vcl_session_is_cl (session))
597 svm_fifo_t *rx_fifo, *tx_fifo;
598 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
599 rx_fifo = uword_to_pointer (mp->rx_fifo, svm_fifo_t *);
600 rx_fifo->client_session_index = sid;
601 tx_fifo = uword_to_pointer (mp->tx_fifo, svm_fifo_t *);
602 tx_fifo->client_session_index = sid;
603 session->rx_fifo = rx_fifo;
604 session->tx_fifo = tx_fifo;
607 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
612 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
614 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
617 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
620 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
623 if (s->session_state != STATE_DISCONNECT)
625 /* Connected udp listener */
626 if (s->session_type == VPPCOM_PROTO_UDP
627 && s->session_state == STATE_CLOSED)
630 VDBG (0, "Unlisten session in wrong state %llx", mp->handle);
635 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
636 s->session_index, mp->handle, format_session_error, mp->retval);
638 if (mp->context != wrk->wrk_index)
639 VDBG (0, "wrong context");
641 vcl_session_table_del_vpp_handle (wrk, mp->handle);
642 vcl_session_free (wrk, s);
646 vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
648 session_migrated_msg_t *mp = (session_migrated_msg_t *) data;
651 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
654 VDBG (0, "Migrated notification with wrong handle %llx", mp->handle);
658 s->vpp_thread_index = mp->vpp_thread_index;
659 s->vpp_handle = mp->new_handle;
660 s->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
662 vec_validate (wrk->vpp_event_queues, s->vpp_thread_index);
663 wrk->vpp_event_queues[s->vpp_thread_index] = s->vpp_evt_q;
665 vcl_session_table_del_vpp_handle (wrk, mp->handle);
666 vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
668 /* Generate new tx event if we have outstanding data */
669 if (svm_fifo_has_event (s->tx_fifo))
670 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
671 SESSION_IO_EVT_TX, SVM_Q_WAIT);
673 VDBG (0, "Migrated 0x%lx to thread %u 0x%lx", mp->handle,
674 s->vpp_thread_index, mp->new_handle);
677 static vcl_session_t *
678 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
680 vcl_session_msg_t *vcl_msg;
681 vcl_session_t *session;
683 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
684 if (PREDICT_FALSE (session != 0))
685 VWRN ("session overlap handle %lu state %u!", msg->handle,
686 session->session_state);
688 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
691 VERR ("couldn't find listen session: listener handle %llx",
692 msg->listener_handle);
696 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
698 vcl_msg->accepted_msg = *msg;
699 /* Session handle points to listener until fully accepted by app */
700 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
705 static vcl_session_t *
706 vcl_session_disconnected_handler (vcl_worker_t * wrk,
707 session_disconnected_msg_t * msg)
709 vcl_session_t *session;
711 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
714 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
718 /* Late disconnect notification on a session that has been closed */
719 if (session->session_state == STATE_CLOSED)
722 /* Caught a disconnect before actually accepting the session */
723 if (session->session_state == STATE_LISTEN)
725 if (!vcl_flag_accepted_session (session, msg->handle,
726 VCL_ACCEPTED_F_CLOSED))
727 VDBG (0, "session was not accepted!");
731 /* If not already reset change state */
732 if (session->session_state != STATE_DISCONNECT)
733 session->session_state = STATE_VPP_CLOSING;
739 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
741 session_cleanup_msg_t *msg;
742 vcl_session_t *session;
744 msg = (session_cleanup_msg_t *) data;
745 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
748 VDBG (0, "disconnect confirmed for unknown handle 0x%llx", msg->handle);
752 vcl_session_table_del_vpp_handle (wrk, msg->handle);
753 /* Should not happen. App did not close the connection so don't free it. */
754 if (session->session_state != STATE_CLOSED)
756 VDBG (0, "app did not close session %d", session->session_index);
757 session->session_state = STATE_DETACHED;
758 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
761 vcl_session_free (wrk, session);
765 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
767 session_req_worker_update_msg_t *msg;
770 msg = (session_req_worker_update_msg_t *) data;
771 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
775 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
779 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
781 session_worker_update_reply_msg_t *msg;
784 msg = (session_worker_update_reply_msg_t *) data;
785 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
788 VDBG (0, "unknown handle 0x%llx", msg->handle);
791 if (vcl_segment_is_not_mounted (wrk, msg->segment_handle))
793 clib_warning ("segment for session %u is not mounted!",
800 s->rx_fifo = uword_to_pointer (msg->rx_fifo, svm_fifo_t *);
801 s->tx_fifo = uword_to_pointer (msg->tx_fifo, svm_fifo_t *);
802 s->rx_fifo->client_session_index = s->session_index;
803 s->tx_fifo->client_session_index = s->session_index;
804 s->rx_fifo->client_thread_index = wrk->wrk_index;
805 s->tx_fifo->client_thread_index = wrk->wrk_index;
807 s->session_state = STATE_UPDATED;
809 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
810 s->vpp_handle, wrk->wrk_index);
814 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
816 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
817 session_app_add_segment_msg_t *msg;
821 msg = (session_app_add_segment_msg_t *) data;
825 vl_socket_client_recv_fd_msg2 (&wrk->bapi_sock_ctx, &fd, 1, 5);
826 seg_type = SSVM_SEGMENT_MEMFD;
829 segment_handle = msg->segment_handle;
830 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
832 clib_warning ("invalid segment handle");
836 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
839 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
843 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
848 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
850 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
851 vcl_segment_detach (msg->segment_handle);
852 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
856 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
858 session_disconnected_msg_t *disconnected_msg;
859 vcl_session_t *session;
861 switch (e->event_type)
863 case SESSION_IO_EVT_RX:
864 case SESSION_IO_EVT_TX:
865 session = vcl_session_get (wrk, e->session_index);
866 if (!session || !(session->session_state & STATE_OPEN))
868 vec_add1 (wrk->unhandled_evts_vector, *e);
870 case SESSION_CTRL_EVT_ACCEPTED:
871 vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
873 case SESSION_CTRL_EVT_CONNECTED:
874 vcl_session_connected_handler (wrk,
875 (session_connected_msg_t *) e->data);
877 case SESSION_CTRL_EVT_DISCONNECTED:
878 disconnected_msg = (session_disconnected_msg_t *) e->data;
879 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
882 VDBG (0, "disconnected session %u [0x%llx]", session->session_index,
883 session->vpp_handle);
885 case SESSION_CTRL_EVT_RESET:
886 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
888 case SESSION_CTRL_EVT_BOUND:
889 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
891 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
892 vcl_session_unlisten_reply_handler (wrk, e->data);
894 case SESSION_CTRL_EVT_MIGRATED:
895 vcl_session_migrated_handler (wrk, e->data);
897 case SESSION_CTRL_EVT_CLEANUP:
898 vcl_session_cleanup_handler (wrk, e->data);
900 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
901 vcl_session_req_worker_update_handler (wrk, e->data);
903 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
904 vcl_session_worker_update_reply_handler (wrk, e->data);
906 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
907 vcl_session_app_add_segment_handler (wrk, e->data);
909 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
910 vcl_session_app_del_segment_handler (wrk, e->data);
913 clib_warning ("unhandled %u", e->event_type);
919 vppcom_wait_for_session_state_change (u32 session_index,
920 vcl_session_state_t state,
923 vcl_worker_t *wrk = vcl_worker_get_current ();
924 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
925 vcl_session_t *volatile session;
931 session = vcl_session_get (wrk, session_index);
932 if (PREDICT_FALSE (!session))
934 return VPPCOM_EBADFD;
936 if (session->session_state & state)
940 if (session->session_state & STATE_DETACHED)
942 return VPPCOM_ECONNREFUSED;
945 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
950 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
951 vcl_handle_mq_event (wrk, e);
952 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
954 while (clib_time_now (&wrk->clib_time) < timeout);
956 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
957 vppcom_session_state_str (state));
958 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
960 return VPPCOM_ETIMEDOUT;
964 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
966 vcl_session_state_t state;
970 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
973 vec_foreach (sip, wrk->pending_session_wrk_updates)
975 s = vcl_session_get (wrk, *sip);
976 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
977 state = s->session_state;
978 vppcom_wait_for_session_state_change (s->session_index, STATE_UPDATED, 5);
979 s->session_state = state;
981 vec_reset_length (wrk->pending_session_wrk_updates);
985 vcl_flush_mq_events (void)
987 vcl_worker_t *wrk = vcl_worker_get_current ();
988 svm_msg_q_msg_t *msg;
993 mq = wrk->app_event_queue;
995 vcl_mq_dequeue_batch (wrk, mq, ~0);
996 svm_msg_q_unlock (mq);
998 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1000 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1001 e = svm_msg_q_msg_data (mq, msg);
1002 vcl_handle_mq_event (wrk, e);
1003 svm_msg_q_free_msg (mq, msg);
1005 vec_reset_length (wrk->mq_msg_vector);
1006 vcl_handle_pending_wrk_updates (wrk);
1010 vppcom_app_session_enable (void)
1014 if (vcm->app_state != STATE_APP_ENABLED)
1016 vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
1017 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
1018 if (PREDICT_FALSE (rv))
1020 VDBG (0, "application session enable timed out! returning %d (%s)",
1021 rv, vppcom_retval_str (rv));
1029 vppcom_app_attach (void)
1033 vppcom_app_send_attach ();
1034 rv = vcl_wait_for_app_state_change (STATE_APP_ATTACHED);
1035 if (PREDICT_FALSE (rv))
1037 VDBG (0, "application attach timed out! returning %d (%s)", rv,
1038 vppcom_retval_str (rv));
1046 vppcom_session_unbind (u32 session_handle)
1048 vcl_worker_t *wrk = vcl_worker_get_current ();
1049 session_accepted_msg_t *accepted_msg;
1050 vcl_session_t *session = 0;
1051 vcl_session_msg_t *evt;
1053 session = vcl_session_get_w_handle (wrk, session_handle);
1055 return VPPCOM_EBADFD;
1057 /* Flush pending accept events, if any */
1058 while (clib_fifo_elts (session->accept_evts_fifo))
1060 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1061 accepted_msg = &evt->accepted_msg;
1062 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1063 vcl_send_session_accepted_reply (session->vpp_evt_q,
1064 accepted_msg->context,
1065 session->vpp_handle, -1);
1067 clib_fifo_free (session->accept_evts_fifo);
1069 vcl_send_session_unlisten (wrk, session);
1071 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1072 session->vpp_handle);
1073 vcl_evt (VCL_EVT_UNBIND, session);
1075 session->vpp_handle = ~0;
1076 session->session_state = STATE_DISCONNECT;
1082 vppcom_session_disconnect (u32 session_handle)
1084 vcl_worker_t *wrk = vcl_worker_get_current ();
1085 svm_msg_q_t *vpp_evt_q;
1086 vcl_session_t *session, *listen_session;
1087 vcl_session_state_t state;
1090 session = vcl_session_get_w_handle (wrk, session_handle);
1092 return VPPCOM_EBADFD;
1094 vpp_handle = session->vpp_handle;
1095 state = session->session_state;
1097 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
1098 vpp_handle, state, vppcom_session_state_str (state));
1100 if (PREDICT_FALSE (state & STATE_LISTEN))
1102 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
1103 return VPPCOM_EBADFD;
1106 if (state & STATE_VPP_CLOSING)
1108 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
1109 vcl_send_session_disconnected_reply (vpp_evt_q, wrk->my_client_index,
1111 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
1112 session->session_index, vpp_handle);
1116 VDBG (1, "session %u [0x%llx]: sending disconnect...",
1117 session->session_index, vpp_handle);
1118 vcl_send_session_disconnect (wrk, session);
1121 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
1123 listen_session = vcl_session_get (wrk, session->listener_index);
1124 listen_session->n_accepted_sessions--;
1133 * Notify vpp of the disconnect and mark the worker as free. If we're the
1134 * last worker, do a full cleanup otherwise, since we're probably a forked
1135 * child, avoid syscalls as much as possible. We might've lost privileges.
1138 vppcom_app_exit (void)
1140 if (!pool_elts (vcm->workers))
1142 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1143 vcl_set_worker_index (~0);
1144 vcl_elog_stop (vcm);
1148 * VPPCOM Public API functions
1151 vppcom_app_create (char *app_name)
1153 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1158 VDBG (1, "already initialized");
1159 return VPPCOM_EEXIST;
1163 vppcom_cfg (&vcm->cfg);
1164 vcl_cfg = &vcm->cfg;
1166 vcm->main_cpu = pthread_self ();
1167 vcm->main_pid = getpid ();
1168 vcm->app_name = format (0, "%s", app_name);
1169 vppcom_init_error_string_table ();
1170 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1171 20 /* timeout in secs */ );
1172 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1173 clib_spinlock_init (&vcm->workers_lock);
1174 clib_rwlock_init (&vcm->segment_table_lock);
1175 atexit (vppcom_app_exit);
1177 /* Allocate default worker */
1178 vcl_worker_alloc_and_init ();
1180 /* API hookup and connect to VPP */
1181 vcl_elog_init (vcm);
1182 vcm->app_state = STATE_APP_START;
1183 rv = vppcom_connect_to_vpp (app_name);
1186 VERR ("couldn't connect to VPP!");
1189 VDBG (0, "sending session enable");
1190 rv = vppcom_app_session_enable ();
1193 VERR ("vppcom_app_session_enable() failed!");
1197 VDBG (0, "sending app attach");
1198 rv = vppcom_app_attach ();
1201 VERR ("vppcom_app_attach() failed!");
1205 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1206 vcm->workers[0].my_client_index, vcm->workers[0].my_client_index);
1212 vppcom_app_destroy (void)
1214 struct dlmallinfo mi;
1218 if (!pool_elts (vcm->workers))
1221 vcl_evt (VCL_EVT_DETACH, vcm);
1223 vcl_send_app_detach (vcl_worker_get_current ());
1226 pool_foreach (wrk, vcm->workers, ({
1227 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1231 vcl_elog_stop (vcm);
1232 vl_client_disconnect_from_vlib ();
1235 * Free the heap and fix vcm
1237 heap = clib_mem_get_heap ();
1238 mi = mspace_mallinfo (heap);
1239 munmap (mspace_least_addr (heap), mi.arena);
1241 vcm = &_vppcom_main;
1245 vppcom_session_create (u8 proto, u8 is_nonblocking)
1247 vcl_worker_t *wrk = vcl_worker_get_current ();
1248 vcl_session_t *session;
1250 session = vcl_session_alloc (wrk);
1252 session->session_type = proto;
1253 session->session_state = STATE_CLOSED;
1254 session->vpp_handle = ~0;
1255 session->is_dgram = vcl_proto_is_dgram (proto);
1258 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
1260 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1261 is_nonblocking, session_index);
1263 VDBG (0, "created session %u", session->session_index);
1265 return vcl_session_handle (session);
1269 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * session,
1270 vcl_session_handle_t sh, u8 do_disconnect)
1272 vcl_session_state_t state;
1273 u32 next_sh, vep_sh;
1278 is_vep = session->is_vep;
1279 next_sh = session->vep.next_sh;
1280 vep_sh = session->vep.vep_sh;
1281 state = session->session_state;
1282 vpp_handle = session->vpp_handle;
1284 VDBG (1, "session %u [0x%llx] closing", session->session_index, vpp_handle);
1288 while (next_sh != ~0)
1290 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1291 if (PREDICT_FALSE (rv < 0))
1292 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1293 " failed! rv %d (%s)", vpp_handle, next_sh, vep_sh, rv,
1294 vppcom_retval_str (rv));
1296 next_sh = session->vep.next_sh;
1301 if (session->is_vep_session)
1303 rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, sh, 0);
1305 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1306 "failed! rv %d (%s)", session->session_index, vpp_handle,
1307 vep_sh, rv, vppcom_retval_str (rv));
1312 VDBG (1, "session %u [0x%llx] disconnect skipped",
1313 session->session_index, vpp_handle);
1317 if (state & STATE_LISTEN)
1319 rv = vppcom_session_unbind (sh);
1320 if (PREDICT_FALSE (rv < 0))
1321 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1322 "rv %d (%s)", session->session_index, vpp_handle, rv,
1323 vppcom_retval_str (rv));
1326 else if ((state & STATE_OPEN)
1327 || (vcl_session_is_connectable_listener (wrk, session)))
1329 rv = vppcom_session_disconnect (sh);
1330 if (PREDICT_FALSE (rv < 0))
1331 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1332 " rv %d (%s)", session->session_index, vpp_handle,
1333 rv, vppcom_retval_str (rv));
1335 else if (state == STATE_DISCONNECT)
1337 svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, session);
1338 vcl_send_session_reset_reply (mq, wrk->my_client_index,
1339 session->vpp_handle, 0);
1341 else if (state == STATE_DETACHED)
1343 /* Should not happen. VPP cleaned up before app confirmed close */
1344 VDBG (0, "vpp freed session %d before close", session->session_index);
1348 session->session_state = STATE_CLOSED;
1350 /* Session is removed only after vpp confirms the disconnect */
1354 vcl_session_table_del_vpp_handle (wrk, vpp_handle);
1356 vcl_session_free (wrk, session);
1357 vcl_evt (VCL_EVT_CLOSE, session, rv);
1363 vppcom_session_close (uint32_t session_handle)
1365 vcl_worker_t *wrk = vcl_worker_get_current ();
1366 vcl_session_t *session;
1368 session = vcl_session_get_w_handle (wrk, session_handle);
1370 return VPPCOM_EBADFD;
1371 return vcl_session_cleanup (wrk, session, session_handle,
1372 1 /* do_disconnect */ );
1376 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1378 vcl_worker_t *wrk = vcl_worker_get_current ();
1379 vcl_session_t *session = 0;
1382 return VPPCOM_EINVAL;
1384 session = vcl_session_get_w_handle (wrk, session_handle);
1386 return VPPCOM_EBADFD;
1388 if (session->is_vep)
1390 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1391 session->session_index);
1392 return VPPCOM_EBADFD;
1395 session->transport.is_ip4 = ep->is_ip4;
1397 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1398 sizeof (ip4_address_t));
1400 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1401 sizeof (ip6_address_t));
1402 session->transport.lcl_port = ep->port;
1404 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1405 "proto %s", session->session_index, session_handle,
1406 session->transport.is_ip4 ? "IPv4" : "IPv6",
1407 format_ip46_address, &session->transport.lcl_ip,
1408 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1409 clib_net_to_host_u16 (session->transport.lcl_port),
1410 vppcom_proto_str (session->session_type));
1411 vcl_evt (VCL_EVT_BIND, session);
1413 if (session->session_type == VPPCOM_PROTO_UDP)
1414 vppcom_session_listen (session_handle, 10);
1420 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1422 vcl_worker_t *wrk = vcl_worker_get_current ();
1423 vcl_session_t *listen_session = 0;
1424 u64 listen_vpp_handle;
1427 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1428 if (!listen_session || listen_session->is_vep)
1429 return VPPCOM_EBADFD;
1431 if (q_len == 0 || q_len == ~0)
1432 q_len = vcm->cfg.listen_queue_size;
1434 listen_vpp_handle = listen_session->vpp_handle;
1435 if (listen_session->session_state & STATE_LISTEN)
1437 VDBG (0, "session %u [0x%llx]: already in listen state!",
1438 listen_sh, listen_vpp_handle);
1442 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1445 * Send listen request to vpp and wait for reply
1447 vcl_send_session_listen (wrk, listen_session);
1448 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1450 vcm->cfg.session_timeout);
1452 if (PREDICT_FALSE (rv))
1454 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1455 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1456 listen_sh, listen_session->vpp_handle, rv,
1457 vppcom_retval_str (rv));
1465 vppcom_session_tls_add_cert (uint32_t session_handle, char *cert,
1469 vcl_worker_t *wrk = vcl_worker_get_current ();
1470 vcl_session_t *session = 0;
1472 session = vcl_session_get_w_handle (wrk, session_handle);
1474 return VPPCOM_EBADFD;
1476 if (cert_len == 0 || cert_len == ~0)
1477 return VPPCOM_EBADFD;
1480 * Send listen request to vpp and wait for reply
1482 vppcom_send_application_tls_cert_add (session, cert, cert_len);
1483 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1484 vcl_wait_for_app_state_change (STATE_APP_READY);
1490 vppcom_session_tls_add_key (uint32_t session_handle, char *key,
1494 vcl_worker_t *wrk = vcl_worker_get_current ();
1495 vcl_session_t *session = 0;
1497 session = vcl_session_get_w_handle (wrk, session_handle);
1499 return VPPCOM_EBADFD;
1501 if (key_len == 0 || key_len == ~0)
1502 return VPPCOM_EBADFD;
1504 vppcom_send_application_tls_key_add (session, key, key_len);
1505 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1506 vcl_wait_for_app_state_change (STATE_APP_READY);
1511 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1515 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1517 return VPPCOM_EBADFD;
1520 if ((ls->session_state != STATE_LISTEN)
1521 && (!vcl_session_is_connectable_listener (wrk, ls)))
1524 "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1525 " (%s)", ls->vpp_handle, ls->session_state,
1526 vppcom_session_state_str (ls->session_state));
1527 return VPPCOM_EBADFD;
1533 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1535 if (!strcmp (proto_str, "TCP"))
1536 *proto = VPPCOM_PROTO_TCP;
1537 else if (!strcmp (proto_str, "tcp"))
1538 *proto = VPPCOM_PROTO_TCP;
1539 else if (!strcmp (proto_str, "UDP"))
1540 *proto = VPPCOM_PROTO_UDP;
1541 else if (!strcmp (proto_str, "udp"))
1542 *proto = VPPCOM_PROTO_UDP;
1543 else if (!strcmp (proto_str, "UDPC"))
1544 *proto = VPPCOM_PROTO_UDPC;
1545 else if (!strcmp (proto_str, "udpc"))
1546 *proto = VPPCOM_PROTO_UDPC;
1547 else if (!strcmp (proto_str, "TLS"))
1548 *proto = VPPCOM_PROTO_TLS;
1549 else if (!strcmp (proto_str, "tls"))
1550 *proto = VPPCOM_PROTO_TLS;
1551 else if (!strcmp (proto_str, "QUIC"))
1552 *proto = VPPCOM_PROTO_QUIC;
1553 else if (!strcmp (proto_str, "quic"))
1554 *proto = VPPCOM_PROTO_QUIC;
1561 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1564 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1565 vcl_worker_t *wrk = vcl_worker_get_current ();
1566 session_accepted_msg_t accepted_msg;
1567 vcl_session_t *listen_session = 0;
1568 vcl_session_t *client_session = 0;
1569 vcl_session_msg_t *evt;
1570 svm_msg_q_msg_t msg;
1575 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1576 if (!listen_session)
1577 return VPPCOM_EBADFD;
1579 listen_session_index = listen_session->session_index;
1580 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1583 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1585 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1586 accept_flags = evt->flags;
1587 accepted_msg = evt->accepted_msg;
1591 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1592 VCL_SESS_ATTR_NONBLOCK);
1595 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1596 return VPPCOM_EAGAIN;
1598 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1599 return VPPCOM_EAGAIN;
1601 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1602 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1604 vcl_handle_mq_event (wrk, e);
1605 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1608 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1609 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1615 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1616 listen_session_index);
1617 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1618 return VPPCOM_ECONNABORTED;
1620 listen_session = vcl_session_get (wrk, listen_session_index);
1621 client_session = vcl_session_get (wrk, client_session_index);
1623 if (flags & O_NONBLOCK)
1624 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1626 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1627 " flags %d, is_nonblocking %u", listen_session->session_index,
1628 listen_session->vpp_handle, client_session_index,
1629 client_session->vpp_handle, flags,
1630 VCL_SESS_ATTR_TEST (client_session->attr, VCL_SESS_ATTR_NONBLOCK));
1634 ep->is_ip4 = client_session->transport.is_ip4;
1635 ep->port = client_session->transport.rmt_port;
1636 if (client_session->transport.is_ip4)
1637 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1638 sizeof (ip4_address_t));
1640 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1641 sizeof (ip6_address_t));
1644 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1645 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1646 client_session_index, client_session->vpp_handle,
1647 format_ip46_address, &client_session->transport.rmt_ip,
1648 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1649 clib_net_to_host_u16 (client_session->transport.rmt_port),
1650 format_ip46_address, &client_session->transport.lcl_ip,
1651 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1652 clib_net_to_host_u16 (client_session->transport.lcl_port));
1653 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1654 client_session_index);
1657 * Session might have been closed already
1661 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1662 client_session->session_state = STATE_VPP_CLOSING;
1663 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1664 client_session->session_state = STATE_DISCONNECT;
1666 return vcl_session_handle (client_session);
1670 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1672 vcl_worker_t *wrk = vcl_worker_get_current ();
1673 vcl_session_t *session = 0;
1677 session = vcl_session_get_w_handle (wrk, session_handle);
1679 return VPPCOM_EBADFD;
1680 session_index = session->session_index;
1682 if (PREDICT_FALSE (session->is_vep))
1684 VDBG (0, "ERROR: cannot connect epoll session %u!",
1685 session->session_index);
1686 return VPPCOM_EBADFD;
1689 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1691 VDBG (0, "session handle %u [0x%llx]: session already "
1692 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1693 session_handle, session->vpp_handle,
1694 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1695 &session->transport.rmt_ip, session->transport.is_ip4 ?
1696 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1697 clib_net_to_host_u16 (session->transport.rmt_port),
1698 vppcom_proto_str (session->session_type), session->session_state,
1699 vppcom_session_state_str (session->session_state));
1703 /* Attempt to connect a connectionless listener */
1704 if (PREDICT_FALSE (session->session_state & STATE_LISTEN))
1706 if (session->session_type != VPPCOM_PROTO_UDP)
1707 return VPPCOM_EINVAL;
1708 vcl_send_session_unlisten (wrk, session);
1709 session->session_state = STATE_CLOSED;
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;
1716 session->flags |= VCL_SESSION_F_CONNECTED;
1718 VDBG (0, "session handle %u (%s): connecting to peer %s %U "
1719 "port %d proto %s", session_handle,
1720 vppcom_session_state_str (session->session_state),
1721 session->transport.is_ip4 ? "IPv4" : "IPv6",
1722 format_ip46_address,
1723 &session->transport.rmt_ip, session->transport.is_ip4 ?
1724 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1725 clib_net_to_host_u16 (session->transport.rmt_port),
1726 vppcom_proto_str (session->session_type));
1728 vcl_send_session_connect (wrk, session);
1730 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK))
1731 return VPPCOM_EINPROGRESS;
1734 * Wait for reply from vpp if blocking
1736 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1737 vcm->cfg.session_timeout);
1739 session = vcl_session_get (wrk, session_index);
1740 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1741 session->vpp_handle, rv ? "failed" : "succeeded");
1747 vppcom_session_stream_connect (uint32_t session_handle,
1748 uint32_t parent_session_handle)
1750 vcl_worker_t *wrk = vcl_worker_get_current ();
1751 vcl_session_t *session, *parent_session;
1752 u32 session_index, parent_session_index;
1755 session = vcl_session_get_w_handle (wrk, session_handle);
1757 return VPPCOM_EBADFD;
1758 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1759 if (!parent_session)
1760 return VPPCOM_EBADFD;
1762 session_index = session->session_index;
1763 parent_session_index = parent_session->session_index;
1764 if (PREDICT_FALSE (session->is_vep))
1766 VDBG (0, "ERROR: cannot connect epoll session %u!",
1767 session->session_index);
1768 return VPPCOM_EBADFD;
1771 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1773 VDBG (0, "session handle %u [0x%llx]: session already "
1774 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1775 session_handle, session->vpp_handle,
1776 parent_session_handle, parent_session->vpp_handle,
1777 vppcom_proto_str (session->session_type), session->session_state,
1778 vppcom_session_state_str (session->session_state));
1782 /* Connect to quic session specifics */
1783 session->transport.is_ip4 = parent_session->transport.is_ip4;
1784 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1785 session->transport.rmt_port = 0;
1786 session->parent_handle = parent_session->vpp_handle;
1788 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1789 session_handle, parent_session_handle, parent_session->vpp_handle);
1792 * Send connect request and wait for reply from vpp
1794 vcl_send_session_connect (wrk, session);
1795 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1796 vcm->cfg.session_timeout);
1798 session->listener_index = parent_session_index;
1799 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1801 parent_session->n_accepted_sessions++;
1803 session = vcl_session_get (wrk, session_index);
1804 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1805 session->vpp_handle, rv ? "failed" : "succeeded");
1811 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1813 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1817 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1820 vcl_worker_t *wrk = vcl_worker_get_current ();
1821 int n_read = 0, is_nonblocking;
1822 vcl_session_t *s = 0;
1823 svm_fifo_t *rx_fifo;
1824 svm_msg_q_msg_t msg;
1829 if (PREDICT_FALSE (!buf))
1830 return VPPCOM_EINVAL;
1832 s = vcl_session_get_w_handle (wrk, session_handle);
1833 if (PREDICT_FALSE (!s || s->is_vep))
1834 return VPPCOM_EBADFD;
1836 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1838 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1839 s->session_index, s->vpp_handle, s->session_state,
1840 vppcom_session_state_str (s->session_state));
1841 return vcl_session_closed_error (s);
1844 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1845 is_ct = vcl_session_is_ct (s);
1846 mq = wrk->app_event_queue;
1847 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1850 if (svm_fifo_is_empty_cons (rx_fifo))
1854 if (vcl_session_is_closing (s))
1855 return vcl_session_closing_error (s);
1856 svm_fifo_unset_event (s->rx_fifo);
1857 return VPPCOM_EWOULDBLOCK;
1859 while (svm_fifo_is_empty_cons (rx_fifo))
1861 if (vcl_session_is_closing (s))
1862 return vcl_session_closing_error (s);
1864 svm_fifo_unset_event (s->rx_fifo);
1865 svm_msg_q_lock (mq);
1866 if (svm_msg_q_is_empty (mq))
1867 svm_msg_q_wait (mq);
1869 svm_msg_q_sub_w_lock (mq, &msg);
1870 e = svm_msg_q_msg_data (mq, &msg);
1871 svm_msg_q_unlock (mq);
1872 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1873 vcl_handle_mq_event (wrk, e);
1874 svm_msg_q_free_msg (mq, &msg);
1879 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1881 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1883 if (svm_fifo_is_empty_cons (rx_fifo))
1884 svm_fifo_unset_event (s->rx_fifo);
1886 /* Cut-through sessions might request tx notifications on rx fifos */
1887 if (PREDICT_FALSE (rx_fifo->want_deq_ntf))
1889 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1890 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1891 svm_fifo_reset_has_deq_ntf (s->rx_fifo);
1894 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1895 s->vpp_handle, n_read, rx_fifo);
1901 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1903 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1907 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1909 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1913 vppcom_session_read_segments (uint32_t session_handle,
1914 vppcom_data_segments_t ds)
1916 vcl_worker_t *wrk = vcl_worker_get_current ();
1917 int n_read = 0, is_nonblocking;
1918 vcl_session_t *s = 0;
1919 svm_fifo_t *rx_fifo;
1920 svm_msg_q_msg_t msg;
1925 s = vcl_session_get_w_handle (wrk, session_handle);
1926 if (PREDICT_FALSE (!s || s->is_vep))
1927 return VPPCOM_EBADFD;
1929 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1930 return vcl_session_closed_error (s);
1932 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1933 is_ct = vcl_session_is_ct (s);
1934 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1935 rx_fifo = s->rx_fifo;
1939 svm_fifo_unset_event (s->rx_fifo);
1941 if (svm_fifo_is_empty_cons (rx_fifo))
1945 svm_fifo_unset_event (rx_fifo);
1946 return VPPCOM_EWOULDBLOCK;
1948 while (svm_fifo_is_empty_cons (rx_fifo))
1950 if (vcl_session_is_closing (s))
1951 return vcl_session_closing_error (s);
1953 svm_fifo_unset_event (rx_fifo);
1954 svm_msg_q_lock (mq);
1955 if (svm_msg_q_is_empty (mq))
1956 svm_msg_q_wait (mq);
1958 svm_msg_q_sub_w_lock (mq, &msg);
1959 e = svm_msg_q_msg_data (mq, &msg);
1960 svm_msg_q_unlock (mq);
1961 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1962 vcl_handle_mq_event (wrk, e);
1963 svm_msg_q_free_msg (mq, &msg);
1967 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_seg_t *) ds);
1968 svm_fifo_unset_event (rx_fifo);
1974 vppcom_session_free_segments (uint32_t session_handle,
1975 vppcom_data_segments_t ds)
1977 vcl_worker_t *wrk = vcl_worker_get_current ();
1980 s = vcl_session_get_w_handle (wrk, session_handle);
1981 if (PREDICT_FALSE (!s || s->is_vep))
1984 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_seg_t *) ds);
1988 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
1990 u32 first_copy = clib_min (ds[0].len, max_bytes);
1991 clib_memcpy_fast (buf, ds[0].data, first_copy);
1992 if (first_copy < max_bytes)
1994 clib_memcpy_fast (buf + first_copy, ds[1].data,
1995 clib_min (ds[1].len, max_bytes - first_copy));
2001 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
2003 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
2007 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2009 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2011 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2017 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2018 size_t n, u8 is_flush, u8 is_dgram)
2020 int n_write, is_nonblocking;
2021 session_evt_type_t et;
2022 svm_msg_q_msg_t msg;
2023 svm_fifo_t *tx_fifo;
2028 if (PREDICT_FALSE (!buf || n == 0))
2029 return VPPCOM_EINVAL;
2031 if (PREDICT_FALSE (s->is_vep))
2033 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2034 " session!", s->session_index, s->vpp_handle);
2035 return VPPCOM_EBADFD;
2038 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2040 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2041 s->session_index, s->vpp_handle, s->session_state,
2042 vppcom_session_state_str (s->session_state));
2043 return vcl_session_closed_error (s);;
2046 is_ct = vcl_session_is_ct (s);
2047 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2048 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
2050 mq = wrk->app_event_queue;
2051 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2055 return VPPCOM_EWOULDBLOCK;
2057 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2059 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2060 if (vcl_session_is_closing (s))
2061 return vcl_session_closing_error (s);
2062 svm_msg_q_lock (mq);
2063 if (svm_msg_q_is_empty (mq))
2064 svm_msg_q_wait (mq);
2066 svm_msg_q_sub_w_lock (mq, &msg);
2067 e = svm_msg_q_msg_data (mq, &msg);
2068 svm_msg_q_unlock (mq);
2070 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
2071 vcl_handle_mq_event (wrk, e);
2072 svm_msg_q_free_msg (mq, &msg);
2076 et = SESSION_IO_EVT_TX;
2077 if (is_flush && !is_ct)
2078 et = SESSION_IO_EVT_TX_FLUSH;
2081 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2082 s->vpp_evt_q, buf, n, et,
2083 0 /* do_evt */ , SVM_Q_WAIT);
2085 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2086 0 /* do_evt */ , SVM_Q_WAIT);
2088 if (svm_fifo_set_event (s->tx_fifo))
2089 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
2092 ASSERT (n_write > 0);
2094 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2095 s->vpp_handle, n_write);
2101 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2103 vcl_worker_t *wrk = vcl_worker_get_current ();
2106 s = vcl_session_get_w_handle (wrk, session_handle);
2107 if (PREDICT_FALSE (!s))
2108 return VPPCOM_EBADFD;
2110 return vppcom_session_write_inline (wrk, s, buf, n,
2111 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2115 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2117 vcl_worker_t *wrk = vcl_worker_get_current ();
2120 s = vcl_session_get_w_handle (wrk, session_handle);
2121 if (PREDICT_FALSE (!s))
2122 return VPPCOM_EBADFD;
2124 return vppcom_session_write_inline (wrk, s, buf, n,
2125 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2128 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2129 if (PREDICT_FALSE (!_s->rx_fifo)) \
2131 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2133 if (!vcl_session_is_ct (_s)) \
2135 svm_fifo_unset_event (_s->rx_fifo); \
2136 if (svm_fifo_is_empty (_s->rx_fifo)) \
2139 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2141 svm_fifo_unset_event (_s->ct_rx_fifo); \
2142 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2148 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2149 unsigned long n_bits, unsigned long *read_map,
2150 unsigned long *write_map,
2151 unsigned long *except_map, u32 * bits_set)
2153 session_disconnected_msg_t *disconnected_msg;
2154 session_connected_msg_t *connected_msg;
2155 vcl_session_t *session;
2158 switch (e->event_type)
2160 case SESSION_IO_EVT_RX:
2161 sid = e->session_index;
2162 session = vcl_session_get (wrk, sid);
2163 if (!session || !vcl_session_is_open (session))
2165 vcl_fifo_rx_evt_valid_or_break (session);
2166 if (sid < n_bits && read_map)
2168 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2172 case SESSION_IO_EVT_TX:
2173 sid = e->session_index;
2174 session = vcl_session_get (wrk, sid);
2175 if (!session || !vcl_session_is_open (session))
2177 if (sid < n_bits && write_map)
2179 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2183 case SESSION_CTRL_EVT_ACCEPTED:
2184 session = vcl_session_accepted (wrk,
2185 (session_accepted_msg_t *) e->data);
2188 sid = session->session_index;
2189 if (sid < n_bits && read_map)
2191 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2195 case SESSION_CTRL_EVT_CONNECTED:
2196 connected_msg = (session_connected_msg_t *) e->data;
2197 sid = vcl_session_connected_handler (wrk, connected_msg);
2198 if (sid == VCL_INVALID_SESSION_INDEX)
2200 if (sid < n_bits && write_map)
2202 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2206 case SESSION_CTRL_EVT_DISCONNECTED:
2207 disconnected_msg = (session_disconnected_msg_t *) e->data;
2208 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2211 sid = session->session_index;
2212 if (sid < n_bits && except_map)
2214 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2218 case SESSION_CTRL_EVT_RESET:
2219 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2220 if (sid < n_bits && except_map)
2222 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2226 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2227 vcl_session_unlisten_reply_handler (wrk, e->data);
2229 case SESSION_CTRL_EVT_MIGRATED:
2230 vcl_session_migrated_handler (wrk, e->data);
2232 case SESSION_CTRL_EVT_CLEANUP:
2233 vcl_session_cleanup_handler (wrk, e->data);
2235 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2236 vcl_session_worker_update_reply_handler (wrk, e->data);
2238 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2239 vcl_session_req_worker_update_handler (wrk, e->data);
2241 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2242 vcl_session_app_add_segment_handler (wrk, e->data);
2244 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2245 vcl_session_app_del_segment_handler (wrk, e->data);
2248 clib_warning ("unhandled: %u", e->event_type);
2254 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2255 unsigned long n_bits, unsigned long *read_map,
2256 unsigned long *write_map, unsigned long *except_map,
2257 double time_to_wait, u32 * bits_set)
2259 svm_msg_q_msg_t *msg;
2263 svm_msg_q_lock (mq);
2264 if (svm_msg_q_is_empty (mq))
2268 svm_msg_q_unlock (mq);
2274 svm_msg_q_unlock (mq);
2277 else if (time_to_wait < 0)
2279 svm_msg_q_wait (mq);
2283 if (svm_msg_q_timedwait (mq, time_to_wait))
2285 svm_msg_q_unlock (mq);
2290 vcl_mq_dequeue_batch (wrk, mq, ~0);
2291 svm_msg_q_unlock (mq);
2293 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2295 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2296 e = svm_msg_q_msg_data (mq, msg);
2297 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2298 except_map, bits_set);
2299 svm_msg_q_free_msg (mq, msg);
2301 vec_reset_length (wrk->mq_msg_vector);
2302 vcl_handle_pending_wrk_updates (wrk);
2307 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2308 vcl_si_set * read_map, vcl_si_set * write_map,
2309 vcl_si_set * except_map, double time_to_wait,
2312 double wait = 0, start = 0;
2316 wait = time_to_wait;
2317 start = clib_time_now (&wrk->clib_time);
2322 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2323 write_map, except_map, wait, bits_set);
2329 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2337 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2338 vcl_si_set * read_map, vcl_si_set * write_map,
2339 vcl_si_set * except_map, double time_to_wait,
2342 vcl_mq_evt_conn_t *mqc;
2343 int __clib_unused n_read;
2347 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2348 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2349 vec_len (wrk->mq_events), time_to_wait);
2350 for (i = 0; i < n_mq_evts; i++)
2352 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2353 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2354 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2355 except_map, 0, bits_set);
2358 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2362 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2363 vcl_si_set * except_map, double time_to_wait)
2365 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2366 vcl_worker_t *wrk = vcl_worker_get_current ();
2367 vcl_session_t *session = 0;
2370 if (n_bits && read_map)
2372 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2373 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2374 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2375 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2377 if (n_bits && write_map)
2379 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2380 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2381 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2382 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2384 if (n_bits && except_map)
2386 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2387 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2388 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2389 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2399 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2400 if (!(session = vcl_session_get (wrk, sid)))
2402 if (except_map && sid < minbits)
2403 clib_bitmap_set_no_check (except_map, sid, 1);
2407 if (vcl_session_write_ready (session) > 0)
2409 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2413 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2420 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2421 if (!(session = vcl_session_get (wrk, sid)))
2423 if (except_map && sid < minbits)
2424 clib_bitmap_set_no_check (except_map, sid, 1);
2428 if (vcl_session_read_ready (session) > 0)
2430 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2438 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2440 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2441 read_map, write_map, except_map, &bits_set);
2443 vec_reset_length (wrk->unhandled_evts_vector);
2445 if (vcm->cfg.use_mq_eventfd)
2446 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2447 time_to_wait, &bits_set);
2449 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2450 time_to_wait, &bits_set);
2456 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2458 vcl_session_t *session;
2459 vppcom_epoll_t *vep;
2460 u32 sh = vep_handle;
2462 if (VPPCOM_DEBUG <= 2)
2465 session = vcl_session_get_w_handle (wrk, vep_handle);
2466 if (PREDICT_FALSE (!session))
2468 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2471 if (PREDICT_FALSE (!session->is_vep))
2473 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2476 vep = &session->vep;
2477 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2480 " is_vep_session = %u\n"
2481 " next_sh = 0x%x (%u)\n"
2482 "}\n", vep_handle, session->is_vep, session->is_vep_session,
2483 vep->next_sh, vep->next_sh);
2485 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2487 session = vcl_session_get_w_handle (wrk, sh);
2488 if (PREDICT_FALSE (!session))
2490 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2493 if (PREDICT_FALSE (session->is_vep))
2495 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2497 else if (PREDICT_FALSE (!session->is_vep_session))
2499 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2502 vep = &session->vep;
2503 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2504 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2505 sh, session->vep.vep_sh, vep_handle);
2506 if (session->is_vep_session)
2508 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2510 " next_sh = 0x%x (%u)\n"
2511 " prev_sh = 0x%x (%u)\n"
2512 " vep_sh = 0x%x (%u)\n"
2513 " ev.events = 0x%x\n"
2514 " ev.data.u64 = 0x%llx\n"
2517 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2518 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2519 vep->ev.data.u64, vep->et_mask);
2524 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2528 vppcom_epoll_create (void)
2530 vcl_worker_t *wrk = vcl_worker_get_current ();
2531 vcl_session_t *vep_session;
2533 vep_session = vcl_session_alloc (wrk);
2535 vep_session->is_vep = 1;
2536 vep_session->vep.vep_sh = ~0;
2537 vep_session->vep.next_sh = ~0;
2538 vep_session->vep.prev_sh = ~0;
2539 vep_session->vpp_handle = ~0;
2541 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2542 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2544 return vcl_session_handle (vep_session);
2548 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2549 struct epoll_event *event)
2551 vcl_worker_t *wrk = vcl_worker_get_current ();
2552 vcl_session_t *vep_session;
2553 vcl_session_t *session;
2556 if (vep_handle == session_handle)
2558 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2559 return VPPCOM_EINVAL;
2562 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2563 if (PREDICT_FALSE (!vep_session))
2565 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2566 return VPPCOM_EBADFD;
2568 if (PREDICT_FALSE (!vep_session->is_vep))
2570 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2571 return VPPCOM_EINVAL;
2574 ASSERT (vep_session->vep.vep_sh == ~0);
2575 ASSERT (vep_session->vep.prev_sh == ~0);
2577 session = vcl_session_get_w_handle (wrk, session_handle);
2578 if (PREDICT_FALSE (!session))
2580 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2581 return VPPCOM_EBADFD;
2583 if (PREDICT_FALSE (session->is_vep))
2585 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2586 return VPPCOM_EINVAL;
2592 if (PREDICT_FALSE (!event))
2594 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2595 return VPPCOM_EINVAL;
2597 if (vep_session->vep.next_sh != ~0)
2599 vcl_session_t *next_session;
2600 next_session = vcl_session_get_w_handle (wrk,
2601 vep_session->vep.next_sh);
2602 if (PREDICT_FALSE (!next_session))
2604 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2605 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2606 return VPPCOM_EBADFD;
2608 ASSERT (next_session->vep.prev_sh == vep_handle);
2609 next_session->vep.prev_sh = session_handle;
2611 session->vep.next_sh = vep_session->vep.next_sh;
2612 session->vep.prev_sh = vep_handle;
2613 session->vep.vep_sh = vep_handle;
2614 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2615 session->vep.ev = *event;
2616 session->is_vep = 0;
2617 session->is_vep_session = 1;
2618 vep_session->vep.next_sh = session_handle;
2620 if (session->tx_fifo)
2621 svm_fifo_add_want_deq_ntf (session->tx_fifo,
2622 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2624 /* Generate EPOLLOUT if tx fifo not full */
2625 if ((event->events & EPOLLOUT) &&
2626 (vcl_session_write_ready (session) > 0))
2628 session_event_t e = { 0 };
2629 e.event_type = SESSION_IO_EVT_TX;
2630 e.session_index = session->session_index;
2631 vec_add1 (wrk->unhandled_evts_vector, e);
2633 /* Generate EPOLLIN if rx fifo has data */
2634 if ((event->events & EPOLLIN) && (vcl_session_read_ready (session) > 0))
2636 session_event_t e = { 0 };
2637 e.event_type = SESSION_IO_EVT_RX;
2638 e.session_index = session->session_index;
2639 vec_add1 (wrk->unhandled_evts_vector, e);
2641 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2642 vep_handle, session_handle, event->events, event->data.u64);
2643 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2647 if (PREDICT_FALSE (!event))
2649 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2653 else if (PREDICT_FALSE (!session->is_vep_session))
2655 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2659 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2661 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2662 session_handle, session->vep.vep_sh, vep_handle);
2667 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2668 if ((event->events & EPOLLOUT) &&
2669 !(session->vep.ev.events & EPOLLOUT) &&
2670 (vcl_session_write_ready (session) > 0))
2672 session_event_t e = { 0 };
2673 e.event_type = SESSION_IO_EVT_TX;
2674 e.session_index = session->session_index;
2675 vec_add1 (wrk->unhandled_evts_vector, e);
2677 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2678 session->vep.ev = *event;
2679 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2680 vep_handle, session_handle, event->events, event->data.u64);
2684 if (PREDICT_FALSE (!session->is_vep_session))
2686 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2690 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2692 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2693 session_handle, session->vep.vep_sh, vep_handle);
2698 if (session->vep.prev_sh == vep_handle)
2699 vep_session->vep.next_sh = session->vep.next_sh;
2702 vcl_session_t *prev_session;
2703 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2704 if (PREDICT_FALSE (!prev_session))
2706 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2707 session->vep.prev_sh, session_handle);
2708 return VPPCOM_EBADFD;
2710 ASSERT (prev_session->vep.next_sh == session_handle);
2711 prev_session->vep.next_sh = session->vep.next_sh;
2713 if (session->vep.next_sh != ~0)
2715 vcl_session_t *next_session;
2716 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2717 if (PREDICT_FALSE (!next_session))
2719 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2720 session->vep.next_sh, session_handle);
2721 return VPPCOM_EBADFD;
2723 ASSERT (next_session->vep.prev_sh == session_handle);
2724 next_session->vep.prev_sh = session->vep.prev_sh;
2727 memset (&session->vep, 0, sizeof (session->vep));
2728 session->vep.next_sh = ~0;
2729 session->vep.prev_sh = ~0;
2730 session->vep.vep_sh = ~0;
2731 session->is_vep_session = 0;
2733 if (session->tx_fifo)
2734 svm_fifo_del_want_deq_ntf (session->tx_fifo, SVM_FIFO_NO_DEQ_NOTIF);
2736 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2738 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2742 VDBG (0, "Invalid operation (%d)!", op);
2746 vep_verify_epoll_chain (wrk, vep_handle);
2753 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2754 struct epoll_event *events, u32 * num_ev)
2756 session_disconnected_msg_t *disconnected_msg;
2757 session_connected_msg_t *connected_msg;
2758 u32 sid = ~0, session_events;
2759 u64 session_evt_data = ~0;
2760 vcl_session_t *session;
2763 switch (e->event_type)
2765 case SESSION_IO_EVT_RX:
2766 sid = e->session_index;
2767 if (!(session = vcl_session_get (wrk, sid)))
2769 vcl_fifo_rx_evt_valid_or_break (session);
2770 session_events = session->vep.ev.events;
2771 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2774 events[*num_ev].events |= EPOLLIN;
2775 session_evt_data = session->vep.ev.data.u64;
2776 session->has_rx_evt = 1;
2778 case SESSION_IO_EVT_TX:
2779 sid = e->session_index;
2780 if (!(session = vcl_session_get (wrk, sid)))
2782 session_events = session->vep.ev.events;
2783 if (!(EPOLLOUT & session_events))
2786 events[*num_ev].events |= EPOLLOUT;
2787 session_evt_data = session->vep.ev.data.u64;
2788 svm_fifo_reset_has_deq_ntf (session->tx_fifo);
2790 case SESSION_CTRL_EVT_ACCEPTED:
2791 session = vcl_session_accepted (wrk,
2792 (session_accepted_msg_t *) e->data);
2796 session_events = session->vep.ev.events;
2797 if (!(EPOLLIN & session_events))
2801 events[*num_ev].events |= EPOLLIN;
2802 session_evt_data = session->vep.ev.data.u64;
2804 case SESSION_CTRL_EVT_CONNECTED:
2805 connected_msg = (session_connected_msg_t *) e->data;
2806 sid = vcl_session_connected_handler (wrk, connected_msg);
2807 /* Generate EPOLLOUT because there's no connected event */
2808 if (!(session = vcl_session_get (wrk, sid)))
2810 session_events = session->vep.ev.events;
2811 if (!(EPOLLOUT & session_events))
2814 events[*num_ev].events |= EPOLLOUT;
2815 session_evt_data = session->vep.ev.data.u64;
2816 if (session->session_state & STATE_DETACHED)
2817 events[*num_ev].events |= EPOLLHUP;
2819 case SESSION_CTRL_EVT_DISCONNECTED:
2820 disconnected_msg = (session_disconnected_msg_t *) e->data;
2821 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2824 session_events = session->vep.ev.events;
2826 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2827 session_evt_data = session->vep.ev.data.u64;
2829 case SESSION_CTRL_EVT_RESET:
2830 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2831 if (!(session = vcl_session_get (wrk, sid)))
2833 session_events = session->vep.ev.events;
2835 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2836 session_evt_data = session->vep.ev.data.u64;
2838 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2839 vcl_session_unlisten_reply_handler (wrk, e->data);
2841 case SESSION_CTRL_EVT_MIGRATED:
2842 vcl_session_migrated_handler (wrk, e->data);
2844 case SESSION_CTRL_EVT_CLEANUP:
2845 vcl_session_cleanup_handler (wrk, e->data);
2847 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2848 vcl_session_req_worker_update_handler (wrk, e->data);
2850 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2851 vcl_session_worker_update_reply_handler (wrk, e->data);
2853 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2854 vcl_session_app_add_segment_handler (wrk, e->data);
2856 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2857 vcl_session_app_del_segment_handler (wrk, e->data);
2860 VDBG (0, "unhandled: %u", e->event_type);
2866 events[*num_ev].data.u64 = session_evt_data;
2867 if (EPOLLONESHOT & session_events)
2869 session = vcl_session_get (wrk, sid);
2870 session->vep.ev.events = 0;
2877 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2878 struct epoll_event *events, u32 maxevents,
2879 double wait_for_time, u32 * num_ev)
2881 svm_msg_q_msg_t *msg;
2885 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2886 goto handle_dequeued;
2888 svm_msg_q_lock (mq);
2889 if (svm_msg_q_is_empty (mq))
2893 svm_msg_q_unlock (mq);
2896 else if (wait_for_time < 0)
2898 svm_msg_q_wait (mq);
2902 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2904 svm_msg_q_unlock (mq);
2909 ASSERT (maxevents > *num_ev);
2910 vcl_mq_dequeue_batch (wrk, mq, maxevents - *num_ev);
2911 svm_msg_q_unlock (mq);
2914 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2916 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2917 e = svm_msg_q_msg_data (mq, msg);
2918 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2919 svm_msg_q_free_msg (mq, msg);
2921 vec_reset_length (wrk->mq_msg_vector);
2922 vcl_handle_pending_wrk_updates (wrk);
2927 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2928 int maxevents, u32 n_evts, double wait_for_time)
2930 double wait = 0, start = 0, now;
2934 wait = wait_for_time;
2935 start = clib_time_now (&wrk->clib_time);
2940 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2947 now = clib_time_now (&wrk->clib_time);
2948 wait -= now - start;
2957 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2958 int maxevents, u32 n_evts, double wait_for_time)
2960 vcl_mq_evt_conn_t *mqc;
2961 int __clib_unused n_read;
2965 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2967 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2968 vec_len (wrk->mq_events), wait_for_time);
2969 for (i = 0; i < n_mq_evts; i++)
2971 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2972 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2973 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
2975 if (!n_evts && n_mq_evts > 0)
2978 return (int) n_evts;
2982 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
2983 int maxevents, double wait_for_time)
2985 vcl_worker_t *wrk = vcl_worker_get_current ();
2986 vcl_session_t *vep_session;
2990 if (PREDICT_FALSE (maxevents <= 0))
2992 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
2993 return VPPCOM_EINVAL;
2996 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2998 return VPPCOM_EBADFD;
3000 if (PREDICT_FALSE (!vep_session->is_vep))
3002 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3003 return VPPCOM_EINVAL;
3006 memset (events, 0, sizeof (*events) * maxevents);
3008 if (vec_len (wrk->unhandled_evts_vector))
3010 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3012 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3014 if (n_evts == maxevents)
3016 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3020 vec_reset_length (wrk->unhandled_evts_vector);
3023 if (vcm->cfg.use_mq_eventfd)
3024 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3027 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3032 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3033 void *buffer, uint32_t * buflen)
3035 vcl_worker_t *wrk = vcl_worker_get_current ();
3036 vcl_session_t *session;
3038 u32 *flags = buffer, tmp_flags = 0;
3039 vppcom_endpt_t *ep = buffer;
3041 session = vcl_session_get_w_handle (wrk, session_handle);
3043 return VPPCOM_EBADFD;
3047 case VPPCOM_ATTR_GET_NREAD:
3048 rv = vcl_session_read_ready (session);
3049 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3053 case VPPCOM_ATTR_GET_NWRITE:
3054 rv = vcl_session_write_ready (session);
3055 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3059 case VPPCOM_ATTR_GET_FLAGS:
3060 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3062 *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr,
3063 VCL_SESS_ATTR_NONBLOCK));
3064 *buflen = sizeof (*flags);
3065 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3066 "is_nonblocking = %u", session_handle, *flags,
3067 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3073 case VPPCOM_ATTR_SET_FLAGS:
3074 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3076 if (*flags & O_NONBLOCK)
3077 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
3079 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
3081 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3082 " is_nonblocking = %u", session_handle, *flags,
3083 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3089 case VPPCOM_ATTR_GET_PEER_ADDR:
3090 if (PREDICT_TRUE (buffer && buflen &&
3091 (*buflen >= sizeof (*ep)) && ep->ip))
3093 ep->is_ip4 = session->transport.is_ip4;
3094 ep->port = session->transport.rmt_port;
3095 if (session->transport.is_ip4)
3096 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3097 sizeof (ip4_address_t));
3099 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3100 sizeof (ip6_address_t));
3101 *buflen = sizeof (*ep);
3102 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3103 "addr = %U, port %u", session_handle, ep->is_ip4,
3104 format_ip46_address, &session->transport.rmt_ip,
3105 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3106 clib_net_to_host_u16 (ep->port));
3112 case VPPCOM_ATTR_GET_LCL_ADDR:
3113 if (PREDICT_TRUE (buffer && buflen &&
3114 (*buflen >= sizeof (*ep)) && ep->ip))
3116 ep->is_ip4 = session->transport.is_ip4;
3117 ep->port = session->transport.lcl_port;
3118 if (session->transport.is_ip4)
3119 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3120 sizeof (ip4_address_t));
3122 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3123 sizeof (ip6_address_t));
3124 *buflen = sizeof (*ep);
3125 VDBG (1, "VPPCOM_ATTR_GET_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_SET_LCL_ADDR:
3136 if (PREDICT_TRUE (buffer && buflen &&
3137 (*buflen >= sizeof (*ep)) && ep->ip))
3139 session->transport.is_ip4 = ep->is_ip4;
3140 session->transport.lcl_port = ep->port;
3141 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3142 *buflen = sizeof (*ep);
3143 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3144 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3145 &session->transport.lcl_ip,
3146 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3147 clib_net_to_host_u16 (ep->port));
3153 case VPPCOM_ATTR_GET_LIBC_EPFD:
3154 rv = session->libc_epfd;
3155 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3158 case VPPCOM_ATTR_SET_LIBC_EPFD:
3159 if (PREDICT_TRUE (buffer && buflen &&
3160 (*buflen == sizeof (session->libc_epfd))))
3162 session->libc_epfd = *(int *) buffer;
3163 *buflen = sizeof (session->libc_epfd);
3165 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3166 session->libc_epfd, *buflen);
3172 case VPPCOM_ATTR_GET_PROTOCOL:
3173 if (buffer && buflen && (*buflen >= sizeof (int)))
3175 *(int *) buffer = session->session_type;
3176 *buflen = sizeof (int);
3178 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3179 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3185 case VPPCOM_ATTR_GET_LISTEN:
3186 if (buffer && buflen && (*buflen >= sizeof (int)))
3188 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3189 VCL_SESS_ATTR_LISTEN);
3190 *buflen = sizeof (int);
3192 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3199 case VPPCOM_ATTR_GET_ERROR:
3200 if (buffer && buflen && (*buflen >= sizeof (int)))
3202 *(int *) buffer = 0;
3203 *buflen = sizeof (int);
3205 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3206 *(int *) buffer, *buflen);
3212 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3213 if (buffer && buflen && (*buflen >= sizeof (u32)))
3217 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3219 svm_fifo_size (session->tx_fifo) :
3220 vcm->cfg.tx_fifo_size);
3221 *buflen = sizeof (u32);
3223 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3224 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3231 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3232 if (buffer && buflen && (*buflen == sizeof (u32)))
3235 session->sndbuf_size = *(u32 *) buffer;
3236 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3237 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3244 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3245 if (buffer && buflen && (*buflen >= sizeof (u32)))
3249 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3251 svm_fifo_size (session->rx_fifo) :
3252 vcm->cfg.rx_fifo_size);
3253 *buflen = sizeof (u32);
3255 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3256 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3262 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3263 if (buffer && buflen && (*buflen == sizeof (u32)))
3266 session->rcvbuf_size = *(u32 *) buffer;
3267 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3268 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3275 case VPPCOM_ATTR_GET_REUSEADDR:
3276 if (buffer && buflen && (*buflen >= sizeof (int)))
3279 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3280 VCL_SESS_ATTR_REUSEADDR);
3281 *buflen = sizeof (int);
3283 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3284 *(int *) buffer, *buflen);
3290 case VPPCOM_ATTR_SET_REUSEADDR:
3291 if (buffer && buflen && (*buflen == sizeof (int)) &&
3292 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3295 if (*(int *) buffer)
3296 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
3298 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
3300 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3301 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEADDR),
3308 case VPPCOM_ATTR_GET_REUSEPORT:
3309 if (buffer && buflen && (*buflen >= sizeof (int)))
3312 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3313 VCL_SESS_ATTR_REUSEPORT);
3314 *buflen = sizeof (int);
3316 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3317 *(int *) buffer, *buflen);
3323 case VPPCOM_ATTR_SET_REUSEPORT:
3324 if (buffer && buflen && (*buflen == sizeof (int)) &&
3325 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3328 if (*(int *) buffer)
3329 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
3331 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
3333 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3334 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEPORT),
3341 case VPPCOM_ATTR_GET_BROADCAST:
3342 if (buffer && buflen && (*buflen >= sizeof (int)))
3345 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3346 VCL_SESS_ATTR_BROADCAST);
3347 *buflen = sizeof (int);
3349 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3350 *(int *) buffer, *buflen);
3356 case VPPCOM_ATTR_SET_BROADCAST:
3357 if (buffer && buflen && (*buflen == sizeof (int)))
3360 if (*(int *) buffer)
3361 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
3363 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
3365 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3366 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_BROADCAST),
3373 case VPPCOM_ATTR_GET_V6ONLY:
3374 if (buffer && buflen && (*buflen >= sizeof (int)))
3377 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3378 VCL_SESS_ATTR_V6ONLY);
3379 *buflen = sizeof (int);
3381 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3382 *(int *) buffer, *buflen);
3388 case VPPCOM_ATTR_SET_V6ONLY:
3389 if (buffer && buflen && (*buflen == sizeof (int)))
3392 if (*(int *) buffer)
3393 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
3395 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
3397 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3398 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_V6ONLY),
3405 case VPPCOM_ATTR_GET_KEEPALIVE:
3406 if (buffer && buflen && (*buflen >= sizeof (int)))
3409 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3410 VCL_SESS_ATTR_KEEPALIVE);
3411 *buflen = sizeof (int);
3413 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3414 *(int *) buffer, *buflen);
3420 case VPPCOM_ATTR_SET_KEEPALIVE:
3421 if (buffer && buflen && (*buflen == sizeof (int)))
3424 if (*(int *) buffer)
3425 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3427 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3429 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3430 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_KEEPALIVE),
3437 case VPPCOM_ATTR_GET_TCP_NODELAY:
3438 if (buffer && buflen && (*buflen >= sizeof (int)))
3441 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3442 VCL_SESS_ATTR_TCP_NODELAY);
3443 *buflen = sizeof (int);
3445 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3446 *(int *) buffer, *buflen);
3452 case VPPCOM_ATTR_SET_TCP_NODELAY:
3453 if (buffer && buflen && (*buflen == sizeof (int)))
3456 if (*(int *) buffer)
3457 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3459 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3461 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3462 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_NODELAY),
3469 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3470 if (buffer && buflen && (*buflen >= sizeof (int)))
3473 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3474 VCL_SESS_ATTR_TCP_KEEPIDLE);
3475 *buflen = sizeof (int);
3477 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3478 *(int *) buffer, *buflen);
3484 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3485 if (buffer && buflen && (*buflen == sizeof (int)))
3488 if (*(int *) buffer)
3489 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3491 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3493 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3494 VCL_SESS_ATTR_TEST (session->attr,
3495 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3501 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3502 if (buffer && buflen && (*buflen >= sizeof (int)))
3505 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3506 VCL_SESS_ATTR_TCP_KEEPINTVL);
3507 *buflen = sizeof (int);
3509 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3510 *(int *) buffer, *buflen);
3516 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3517 if (buffer && buflen && (*buflen == sizeof (int)))
3520 if (*(int *) buffer)
3521 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3523 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3525 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3526 VCL_SESS_ATTR_TEST (session->attr,
3527 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3533 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3534 if (buffer && buflen && (*buflen >= sizeof (u32)))
3537 *(u32 *) buffer = session->user_mss;
3538 *buflen = sizeof (int);
3540 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3541 *(int *) buffer, *buflen);
3547 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3548 if (buffer && buflen && (*buflen == sizeof (u32)))
3551 session->user_mss = *(u32 *) buffer;
3553 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3554 session->user_mss, *buflen);
3560 case VPPCOM_ATTR_SET_SHUT:
3561 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3562 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3563 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3564 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3567 case VPPCOM_ATTR_GET_SHUT:
3568 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3570 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3573 *(int *) buffer = SHUT_RD;
3574 else if (tmp_flags == 2)
3575 *(int *) buffer = SHUT_WR;
3576 else if (tmp_flags == 3)
3577 *(int *) buffer = SHUT_RDWR;
3578 *buflen = sizeof (int);
3589 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3590 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3592 vcl_worker_t *wrk = vcl_worker_get_current ();
3593 vcl_session_t *session;
3597 rv = vppcom_session_read (session_handle, buffer, buflen);
3598 else if (flags & MSG_PEEK)
3599 rv = vppcom_session_peek (session_handle, buffer, buflen);
3602 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3603 return VPPCOM_EAFNOSUPPORT;
3608 session = vcl_session_get_w_handle (wrk, session_handle);
3609 if (session->transport.is_ip4)
3610 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3611 sizeof (ip4_address_t));
3613 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3614 sizeof (ip6_address_t));
3615 ep->is_ip4 = session->transport.is_ip4;
3616 ep->port = session->transport.rmt_port;
3623 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3624 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3626 vcl_worker_t *wrk = vcl_worker_get_current ();
3629 s = vcl_session_get_w_handle (wrk, session_handle);
3631 return VPPCOM_EBADFD;
3634 return VPPCOM_EINVAL;
3638 if (s->session_type != VPPCOM_PROTO_UDP
3639 || (s->flags & VCL_SESSION_F_CONNECTED))
3640 return VPPCOM_EINVAL;
3642 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3643 if (PREDICT_FALSE (s->session_state == STATE_CLOSED))
3645 vcl_send_session_connect (wrk, s);
3649 s->transport.is_ip4 = ep->is_ip4;
3650 s->transport.rmt_port = ep->port;
3651 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3657 // TBD check the flags and do the right thing
3658 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3661 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3662 s->is_dgram ? 1 : 0));
3666 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3668 vcl_worker_t *wrk = vcl_worker_get_current ();
3669 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3670 u32 i, keep_trying = 1;
3671 svm_msg_q_msg_t msg;
3675 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3678 return VPPCOM_EFAULT;
3682 vcl_session_t *session;
3684 /* Dequeue all events and drop all unhandled io events */
3685 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3687 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3688 vcl_handle_mq_event (wrk, e);
3689 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3691 vec_reset_length (wrk->unhandled_evts_vector);
3693 for (i = 0; i < n_sids; i++)
3695 session = vcl_session_get (wrk, vp[i].sh);
3698 vp[i].revents = POLLHUP;
3705 if (POLLIN & vp[i].events)
3707 rv = vcl_session_read_ready (session);
3710 vp[i].revents |= POLLIN;
3717 case VPPCOM_ECONNRESET:
3718 vp[i].revents = POLLHUP;
3722 vp[i].revents = POLLERR;
3729 if (POLLOUT & vp[i].events)
3731 rv = vcl_session_write_ready (session);
3734 vp[i].revents |= POLLOUT;
3741 case VPPCOM_ECONNRESET:
3742 vp[i].revents = POLLHUP;
3746 vp[i].revents = POLLERR;
3753 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3755 vp[i].revents = POLLNVAL;
3759 if (wait_for_time != -1)
3760 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3762 while ((num_ev == 0) && keep_trying);
3768 vppcom_mq_epoll_fd (void)
3770 vcl_worker_t *wrk = vcl_worker_get_current ();
3771 return wrk->mqs_epfd;
3775 vppcom_session_index (vcl_session_handle_t session_handle)
3777 return session_handle & 0xFFFFFF;
3781 vppcom_session_worker (vcl_session_handle_t session_handle)
3783 return session_handle >> 24;
3787 vppcom_worker_register (void)
3793 if (!vcl_worker_alloc_and_init ())
3794 return VPPCOM_EEXIST;
3796 wrk = vcl_worker_get_current ();
3797 wrk_name = format (0, "%s-wrk-%u", vcm->app_name, wrk->wrk_index);
3799 rv = vppcom_connect_to_vpp ((char *) wrk_name);
3800 vec_free (wrk_name);
3803 return VPPCOM_EFAULT;
3805 if (vcl_worker_register_with_vpp ())
3806 return VPPCOM_EEXIST;
3812 vppcom_worker_unregister (void)
3814 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3815 vcl_set_worker_index (~0);
3819 vppcom_worker_index (void)
3821 return vcl_get_worker_index ();
3825 vppcom_worker_mqs_epfd (void)
3827 vcl_worker_t *wrk = vcl_worker_get_current ();
3828 if (!vcm->cfg.use_mq_eventfd)
3830 return wrk->mqs_epfd;
3834 vppcom_session_is_connectable_listener (uint32_t session_handle)
3836 vcl_session_t *session;
3837 vcl_worker_t *wrk = vcl_worker_get_current ();
3838 session = vcl_session_get_w_handle (wrk, session_handle);
3840 return VPPCOM_EBADFD;
3841 return vcl_session_is_connectable_listener (wrk, session);
3845 vppcom_session_listener (uint32_t session_handle)
3847 vcl_worker_t *wrk = vcl_worker_get_current ();
3848 vcl_session_t *listen_session, *session;
3849 session = vcl_session_get_w_handle (wrk, session_handle);
3851 return VPPCOM_EBADFD;
3852 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3853 return VPPCOM_EBADFD;
3854 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3855 if (!listen_session)
3856 return VPPCOM_EBADFD;
3857 return vcl_session_handle (listen_session);
3861 vppcom_session_n_accepted (uint32_t session_handle)
3863 vcl_worker_t *wrk = vcl_worker_get_current ();
3864 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3866 return VPPCOM_EBADFD;
3867 return session->n_accepted_sessions;
3871 * fd.io coding-style-patch-verification: ON
3874 * eval: (c-set-style "gnu")