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 if (msg->type == SESSION_CLEANUP_TRANSPORT)
754 /* Transport was cleaned up before we confirmed close. Probably the
755 * app is still waiting for some data that cannot be delivered.
756 * Confirm close to make sure everything is cleaned up */
757 if (session->session_state == STATE_VPP_CLOSING)
758 vcl_session_cleanup (wrk, session, vcl_session_handle (session),
759 1 /* do_disconnect */ );
763 vcl_session_table_del_vpp_handle (wrk, msg->handle);
764 /* Should not happen. App did not close the connection so don't free it. */
765 if (session->session_state != STATE_CLOSED)
767 VDBG (0, "app did not close session %d", session->session_index);
768 session->session_state = STATE_DETACHED;
769 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
772 vcl_session_free (wrk, session);
776 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
778 session_req_worker_update_msg_t *msg;
781 msg = (session_req_worker_update_msg_t *) data;
782 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
786 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
790 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
792 session_worker_update_reply_msg_t *msg;
795 msg = (session_worker_update_reply_msg_t *) data;
796 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
799 VDBG (0, "unknown handle 0x%llx", msg->handle);
802 if (vcl_segment_is_not_mounted (wrk, msg->segment_handle))
804 clib_warning ("segment for session %u is not mounted!",
811 s->rx_fifo = uword_to_pointer (msg->rx_fifo, svm_fifo_t *);
812 s->tx_fifo = uword_to_pointer (msg->tx_fifo, svm_fifo_t *);
813 s->rx_fifo->client_session_index = s->session_index;
814 s->tx_fifo->client_session_index = s->session_index;
815 s->rx_fifo->client_thread_index = wrk->wrk_index;
816 s->tx_fifo->client_thread_index = wrk->wrk_index;
818 s->session_state = STATE_UPDATED;
820 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
821 s->vpp_handle, wrk->wrk_index);
825 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
827 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
828 session_app_add_segment_msg_t *msg;
832 msg = (session_app_add_segment_msg_t *) data;
836 vl_socket_client_recv_fd_msg2 (&wrk->bapi_sock_ctx, &fd, 1, 5);
837 seg_type = SSVM_SEGMENT_MEMFD;
840 segment_handle = msg->segment_handle;
841 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
843 clib_warning ("invalid segment handle");
847 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
850 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
854 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
859 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
861 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
862 vcl_segment_detach (msg->segment_handle);
863 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
867 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
869 session_disconnected_msg_t *disconnected_msg;
870 vcl_session_t *session;
872 switch (e->event_type)
874 case SESSION_IO_EVT_RX:
875 case SESSION_IO_EVT_TX:
876 session = vcl_session_get (wrk, e->session_index);
877 if (!session || !(session->session_state & STATE_OPEN))
879 vec_add1 (wrk->unhandled_evts_vector, *e);
881 case SESSION_CTRL_EVT_ACCEPTED:
882 vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
884 case SESSION_CTRL_EVT_CONNECTED:
885 vcl_session_connected_handler (wrk,
886 (session_connected_msg_t *) e->data);
888 case SESSION_CTRL_EVT_DISCONNECTED:
889 disconnected_msg = (session_disconnected_msg_t *) e->data;
890 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
893 VDBG (0, "disconnected session %u [0x%llx]", session->session_index,
894 session->vpp_handle);
896 case SESSION_CTRL_EVT_RESET:
897 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
899 case SESSION_CTRL_EVT_BOUND:
900 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
902 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
903 vcl_session_unlisten_reply_handler (wrk, e->data);
905 case SESSION_CTRL_EVT_MIGRATED:
906 vcl_session_migrated_handler (wrk, e->data);
908 case SESSION_CTRL_EVT_CLEANUP:
909 vcl_session_cleanup_handler (wrk, e->data);
911 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
912 vcl_session_req_worker_update_handler (wrk, e->data);
914 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
915 vcl_session_worker_update_reply_handler (wrk, e->data);
917 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
918 vcl_session_app_add_segment_handler (wrk, e->data);
920 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
921 vcl_session_app_del_segment_handler (wrk, e->data);
924 clib_warning ("unhandled %u", e->event_type);
930 vppcom_wait_for_session_state_change (u32 session_index,
931 vcl_session_state_t state,
934 vcl_worker_t *wrk = vcl_worker_get_current ();
935 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
936 vcl_session_t *volatile session;
942 session = vcl_session_get (wrk, session_index);
943 if (PREDICT_FALSE (!session))
945 return VPPCOM_EBADFD;
947 if (session->session_state & state)
951 if (session->session_state & STATE_DETACHED)
953 return VPPCOM_ECONNREFUSED;
956 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
961 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
962 vcl_handle_mq_event (wrk, e);
963 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
965 while (clib_time_now (&wrk->clib_time) < timeout);
967 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
968 vppcom_session_state_str (state));
969 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
971 return VPPCOM_ETIMEDOUT;
975 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
977 vcl_session_state_t state;
981 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
984 vec_foreach (sip, wrk->pending_session_wrk_updates)
986 s = vcl_session_get (wrk, *sip);
987 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
988 state = s->session_state;
989 vppcom_wait_for_session_state_change (s->session_index, STATE_UPDATED, 5);
990 s->session_state = state;
992 vec_reset_length (wrk->pending_session_wrk_updates);
996 vcl_flush_mq_events (void)
998 vcl_worker_t *wrk = vcl_worker_get_current ();
999 svm_msg_q_msg_t *msg;
1004 mq = wrk->app_event_queue;
1005 svm_msg_q_lock (mq);
1006 vcl_mq_dequeue_batch (wrk, mq, ~0);
1007 svm_msg_q_unlock (mq);
1009 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1011 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1012 e = svm_msg_q_msg_data (mq, msg);
1013 vcl_handle_mq_event (wrk, e);
1014 svm_msg_q_free_msg (mq, msg);
1016 vec_reset_length (wrk->mq_msg_vector);
1017 vcl_handle_pending_wrk_updates (wrk);
1021 vppcom_app_session_enable (void)
1025 if (vcm->app_state != STATE_APP_ENABLED)
1027 vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
1028 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
1029 if (PREDICT_FALSE (rv))
1031 VDBG (0, "application session enable timed out! returning %d (%s)",
1032 rv, vppcom_retval_str (rv));
1040 vppcom_app_attach (void)
1044 vppcom_app_send_attach ();
1045 rv = vcl_wait_for_app_state_change (STATE_APP_ATTACHED);
1046 if (PREDICT_FALSE (rv))
1048 VDBG (0, "application attach timed out! returning %d (%s)", rv,
1049 vppcom_retval_str (rv));
1057 vppcom_session_unbind (u32 session_handle)
1059 vcl_worker_t *wrk = vcl_worker_get_current ();
1060 session_accepted_msg_t *accepted_msg;
1061 vcl_session_t *session = 0;
1062 vcl_session_msg_t *evt;
1064 session = vcl_session_get_w_handle (wrk, session_handle);
1066 return VPPCOM_EBADFD;
1068 /* Flush pending accept events, if any */
1069 while (clib_fifo_elts (session->accept_evts_fifo))
1071 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1072 accepted_msg = &evt->accepted_msg;
1073 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1074 vcl_send_session_accepted_reply (session->vpp_evt_q,
1075 accepted_msg->context,
1076 session->vpp_handle, -1);
1078 clib_fifo_free (session->accept_evts_fifo);
1080 vcl_send_session_unlisten (wrk, session);
1082 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1083 session->vpp_handle);
1084 vcl_evt (VCL_EVT_UNBIND, session);
1086 session->vpp_handle = ~0;
1087 session->session_state = STATE_DISCONNECT;
1093 vppcom_session_disconnect (u32 session_handle)
1095 vcl_worker_t *wrk = vcl_worker_get_current ();
1096 svm_msg_q_t *vpp_evt_q;
1097 vcl_session_t *session, *listen_session;
1098 vcl_session_state_t state;
1101 session = vcl_session_get_w_handle (wrk, session_handle);
1103 return VPPCOM_EBADFD;
1105 vpp_handle = session->vpp_handle;
1106 state = session->session_state;
1108 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
1109 vpp_handle, state, vppcom_session_state_str (state));
1111 if (PREDICT_FALSE (state & STATE_LISTEN))
1113 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
1114 return VPPCOM_EBADFD;
1117 if (state & STATE_VPP_CLOSING)
1119 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
1120 vcl_send_session_disconnected_reply (vpp_evt_q, wrk->my_client_index,
1122 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
1123 session->session_index, vpp_handle);
1127 VDBG (1, "session %u [0x%llx]: sending disconnect...",
1128 session->session_index, vpp_handle);
1129 vcl_send_session_disconnect (wrk, session);
1132 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
1134 listen_session = vcl_session_get (wrk, session->listener_index);
1135 listen_session->n_accepted_sessions--;
1144 * Notify vpp of the disconnect and mark the worker as free. If we're the
1145 * last worker, do a full cleanup otherwise, since we're probably a forked
1146 * child, avoid syscalls as much as possible. We might've lost privileges.
1149 vppcom_app_exit (void)
1151 if (!pool_elts (vcm->workers))
1153 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1154 vcl_set_worker_index (~0);
1155 vcl_elog_stop (vcm);
1159 * VPPCOM Public API functions
1162 vppcom_app_create (char *app_name)
1164 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1169 VDBG (1, "already initialized");
1170 return VPPCOM_EEXIST;
1174 vppcom_cfg (&vcm->cfg);
1175 vcl_cfg = &vcm->cfg;
1177 vcm->main_cpu = pthread_self ();
1178 vcm->main_pid = getpid ();
1179 vcm->app_name = format (0, "%s", app_name);
1180 vppcom_init_error_string_table ();
1181 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1182 20 /* timeout in secs */ );
1183 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1184 clib_spinlock_init (&vcm->workers_lock);
1185 clib_rwlock_init (&vcm->segment_table_lock);
1186 atexit (vppcom_app_exit);
1188 /* Allocate default worker */
1189 vcl_worker_alloc_and_init ();
1191 /* API hookup and connect to VPP */
1192 vcl_elog_init (vcm);
1193 vcm->app_state = STATE_APP_START;
1194 rv = vppcom_connect_to_vpp (app_name);
1197 VERR ("couldn't connect to VPP!");
1200 VDBG (0, "sending session enable");
1201 rv = vppcom_app_session_enable ();
1204 VERR ("vppcom_app_session_enable() failed!");
1208 VDBG (0, "sending app attach");
1209 rv = vppcom_app_attach ();
1212 VERR ("vppcom_app_attach() failed!");
1216 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1217 vcm->workers[0].my_client_index, vcm->workers[0].my_client_index);
1223 vppcom_app_destroy (void)
1225 vcl_worker_t *wrk, *current_wrk;
1226 struct dlmallinfo mi;
1229 if (!pool_elts (vcm->workers))
1232 vcl_evt (VCL_EVT_DETACH, vcm);
1234 current_wrk = vcl_worker_get_current ();
1237 pool_foreach (wrk, vcm->workers, ({
1238 if (current_wrk != wrk)
1239 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1243 vcl_send_app_detach (current_wrk);
1244 vppcom_disconnect_from_vpp ();
1245 vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
1247 vcl_elog_stop (vcm);
1250 * Free the heap and fix vcm
1252 heap = clib_mem_get_heap ();
1253 mi = mspace_mallinfo (heap);
1254 munmap (mspace_least_addr (heap), mi.arena);
1256 vcm = &_vppcom_main;
1260 vppcom_session_create (u8 proto, u8 is_nonblocking)
1262 vcl_worker_t *wrk = vcl_worker_get_current ();
1263 vcl_session_t *session;
1265 session = vcl_session_alloc (wrk);
1267 session->session_type = proto;
1268 session->session_state = STATE_CLOSED;
1269 session->vpp_handle = ~0;
1270 session->is_dgram = vcl_proto_is_dgram (proto);
1273 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
1275 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1276 is_nonblocking, session_index);
1278 VDBG (0, "created session %u", session->session_index);
1280 return vcl_session_handle (session);
1284 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * session,
1285 vcl_session_handle_t sh, u8 do_disconnect)
1287 vcl_session_state_t state;
1288 u32 next_sh, vep_sh;
1293 is_vep = session->is_vep;
1294 next_sh = session->vep.next_sh;
1295 vep_sh = session->vep.vep_sh;
1296 state = session->session_state;
1297 vpp_handle = session->vpp_handle;
1299 VDBG (1, "session %u [0x%llx] closing", session->session_index, vpp_handle);
1303 while (next_sh != ~0)
1305 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1306 if (PREDICT_FALSE (rv < 0))
1307 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1308 " failed! rv %d (%s)", vpp_handle, next_sh, vep_sh, rv,
1309 vppcom_retval_str (rv));
1311 next_sh = session->vep.next_sh;
1316 if (session->is_vep_session)
1318 rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, sh, 0);
1320 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1321 "failed! rv %d (%s)", session->session_index, vpp_handle,
1322 vep_sh, rv, vppcom_retval_str (rv));
1327 VDBG (1, "session %u [0x%llx] disconnect skipped",
1328 session->session_index, vpp_handle);
1332 if (state & STATE_LISTEN)
1334 rv = vppcom_session_unbind (sh);
1335 if (PREDICT_FALSE (rv < 0))
1336 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1337 "rv %d (%s)", session->session_index, vpp_handle, rv,
1338 vppcom_retval_str (rv));
1341 else if ((state & STATE_OPEN)
1342 || (vcl_session_is_connectable_listener (wrk, session)))
1344 rv = vppcom_session_disconnect (sh);
1345 if (PREDICT_FALSE (rv < 0))
1346 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1347 " rv %d (%s)", session->session_index, vpp_handle,
1348 rv, vppcom_retval_str (rv));
1350 else if (state == STATE_DISCONNECT)
1352 svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, session);
1353 vcl_send_session_reset_reply (mq, wrk->my_client_index,
1354 session->vpp_handle, 0);
1356 else if (state == STATE_DETACHED)
1358 /* Should not happen. VPP cleaned up before app confirmed close */
1359 VDBG (0, "vpp freed session %d before close", session->session_index);
1363 session->session_state = STATE_CLOSED;
1365 /* Session is removed only after vpp confirms the disconnect */
1369 vcl_session_table_del_vpp_handle (wrk, vpp_handle);
1371 vcl_session_free (wrk, session);
1372 vcl_evt (VCL_EVT_CLOSE, session, rv);
1378 vppcom_session_close (uint32_t session_handle)
1380 vcl_worker_t *wrk = vcl_worker_get_current ();
1381 vcl_session_t *session;
1383 session = vcl_session_get_w_handle (wrk, session_handle);
1385 return VPPCOM_EBADFD;
1386 return vcl_session_cleanup (wrk, session, session_handle,
1387 1 /* do_disconnect */ );
1391 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1393 vcl_worker_t *wrk = vcl_worker_get_current ();
1394 vcl_session_t *session = 0;
1397 return VPPCOM_EINVAL;
1399 session = vcl_session_get_w_handle (wrk, session_handle);
1401 return VPPCOM_EBADFD;
1403 if (session->is_vep)
1405 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1406 session->session_index);
1407 return VPPCOM_EBADFD;
1410 session->transport.is_ip4 = ep->is_ip4;
1412 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1413 sizeof (ip4_address_t));
1415 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1416 sizeof (ip6_address_t));
1417 session->transport.lcl_port = ep->port;
1419 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1420 "proto %s", session->session_index, session_handle,
1421 session->transport.is_ip4 ? "IPv4" : "IPv6",
1422 format_ip46_address, &session->transport.lcl_ip,
1423 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1424 clib_net_to_host_u16 (session->transport.lcl_port),
1425 vppcom_proto_str (session->session_type));
1426 vcl_evt (VCL_EVT_BIND, session);
1428 if (session->session_type == VPPCOM_PROTO_UDP)
1429 vppcom_session_listen (session_handle, 10);
1435 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1437 vcl_worker_t *wrk = vcl_worker_get_current ();
1438 vcl_session_t *listen_session = 0;
1439 u64 listen_vpp_handle;
1442 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1443 if (!listen_session || listen_session->is_vep)
1444 return VPPCOM_EBADFD;
1446 if (q_len == 0 || q_len == ~0)
1447 q_len = vcm->cfg.listen_queue_size;
1449 listen_vpp_handle = listen_session->vpp_handle;
1450 if (listen_session->session_state & STATE_LISTEN)
1452 VDBG (0, "session %u [0x%llx]: already in listen state!",
1453 listen_sh, listen_vpp_handle);
1457 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1460 * Send listen request to vpp and wait for reply
1462 vcl_send_session_listen (wrk, listen_session);
1463 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1465 vcm->cfg.session_timeout);
1467 if (PREDICT_FALSE (rv))
1469 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1470 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1471 listen_sh, listen_session->vpp_handle, rv,
1472 vppcom_retval_str (rv));
1480 vppcom_session_tls_add_cert (uint32_t session_handle, char *cert,
1484 vcl_worker_t *wrk = vcl_worker_get_current ();
1485 vcl_session_t *session = 0;
1487 session = vcl_session_get_w_handle (wrk, session_handle);
1489 return VPPCOM_EBADFD;
1491 if (cert_len == 0 || cert_len == ~0)
1492 return VPPCOM_EBADFD;
1495 * Send listen request to vpp and wait for reply
1497 vppcom_send_application_tls_cert_add (session, cert, cert_len);
1498 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1499 vcl_wait_for_app_state_change (STATE_APP_READY);
1505 vppcom_session_tls_add_key (uint32_t session_handle, char *key,
1509 vcl_worker_t *wrk = vcl_worker_get_current ();
1510 vcl_session_t *session = 0;
1512 session = vcl_session_get_w_handle (wrk, session_handle);
1514 return VPPCOM_EBADFD;
1516 if (key_len == 0 || key_len == ~0)
1517 return VPPCOM_EBADFD;
1519 vppcom_send_application_tls_key_add (session, key, key_len);
1520 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1521 vcl_wait_for_app_state_change (STATE_APP_READY);
1526 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1530 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1532 return VPPCOM_EBADFD;
1535 if ((ls->session_state != STATE_LISTEN)
1536 && (!vcl_session_is_connectable_listener (wrk, ls)))
1539 "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1540 " (%s)", ls->vpp_handle, ls->session_state,
1541 vppcom_session_state_str (ls->session_state));
1542 return VPPCOM_EBADFD;
1548 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1550 if (!strcmp (proto_str, "TCP"))
1551 *proto = VPPCOM_PROTO_TCP;
1552 else if (!strcmp (proto_str, "tcp"))
1553 *proto = VPPCOM_PROTO_TCP;
1554 else if (!strcmp (proto_str, "UDP"))
1555 *proto = VPPCOM_PROTO_UDP;
1556 else if (!strcmp (proto_str, "udp"))
1557 *proto = VPPCOM_PROTO_UDP;
1558 else if (!strcmp (proto_str, "UDPC"))
1559 *proto = VPPCOM_PROTO_UDPC;
1560 else if (!strcmp (proto_str, "udpc"))
1561 *proto = VPPCOM_PROTO_UDPC;
1562 else if (!strcmp (proto_str, "TLS"))
1563 *proto = VPPCOM_PROTO_TLS;
1564 else if (!strcmp (proto_str, "tls"))
1565 *proto = VPPCOM_PROTO_TLS;
1566 else if (!strcmp (proto_str, "QUIC"))
1567 *proto = VPPCOM_PROTO_QUIC;
1568 else if (!strcmp (proto_str, "quic"))
1569 *proto = VPPCOM_PROTO_QUIC;
1576 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1579 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1580 vcl_worker_t *wrk = vcl_worker_get_current ();
1581 session_accepted_msg_t accepted_msg;
1582 vcl_session_t *listen_session = 0;
1583 vcl_session_t *client_session = 0;
1584 vcl_session_msg_t *evt;
1585 svm_msg_q_msg_t msg;
1590 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1591 if (!listen_session)
1592 return VPPCOM_EBADFD;
1594 listen_session_index = listen_session->session_index;
1595 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1598 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1600 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1601 accept_flags = evt->flags;
1602 accepted_msg = evt->accepted_msg;
1606 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1607 VCL_SESS_ATTR_NONBLOCK);
1610 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1611 return VPPCOM_EAGAIN;
1613 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1614 return VPPCOM_EAGAIN;
1616 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1617 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1619 vcl_handle_mq_event (wrk, e);
1620 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1623 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1624 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1630 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1631 listen_session_index);
1632 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1633 return VPPCOM_ECONNABORTED;
1635 listen_session = vcl_session_get (wrk, listen_session_index);
1636 client_session = vcl_session_get (wrk, client_session_index);
1638 if (flags & O_NONBLOCK)
1639 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1641 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1642 " flags %d, is_nonblocking %u", listen_session->session_index,
1643 listen_session->vpp_handle, client_session_index,
1644 client_session->vpp_handle, flags,
1645 VCL_SESS_ATTR_TEST (client_session->attr, VCL_SESS_ATTR_NONBLOCK));
1649 ep->is_ip4 = client_session->transport.is_ip4;
1650 ep->port = client_session->transport.rmt_port;
1651 if (client_session->transport.is_ip4)
1652 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1653 sizeof (ip4_address_t));
1655 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1656 sizeof (ip6_address_t));
1659 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1660 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1661 client_session_index, client_session->vpp_handle,
1662 format_ip46_address, &client_session->transport.rmt_ip,
1663 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1664 clib_net_to_host_u16 (client_session->transport.rmt_port),
1665 format_ip46_address, &client_session->transport.lcl_ip,
1666 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1667 clib_net_to_host_u16 (client_session->transport.lcl_port));
1668 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1669 client_session_index);
1672 * Session might have been closed already
1676 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1677 client_session->session_state = STATE_VPP_CLOSING;
1678 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1679 client_session->session_state = STATE_DISCONNECT;
1681 return vcl_session_handle (client_session);
1685 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1687 vcl_worker_t *wrk = vcl_worker_get_current ();
1688 vcl_session_t *session = 0;
1692 session = vcl_session_get_w_handle (wrk, session_handle);
1694 return VPPCOM_EBADFD;
1695 session_index = session->session_index;
1697 if (PREDICT_FALSE (session->is_vep))
1699 VDBG (0, "ERROR: cannot connect epoll session %u!",
1700 session->session_index);
1701 return VPPCOM_EBADFD;
1704 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1706 VDBG (0, "session handle %u [0x%llx]: session already "
1707 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1708 session_handle, session->vpp_handle,
1709 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1710 &session->transport.rmt_ip, session->transport.is_ip4 ?
1711 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1712 clib_net_to_host_u16 (session->transport.rmt_port),
1713 vppcom_proto_str (session->session_type), session->session_state,
1714 vppcom_session_state_str (session->session_state));
1718 /* Attempt to connect a connectionless listener */
1719 if (PREDICT_FALSE (session->session_state & STATE_LISTEN))
1721 if (session->session_type != VPPCOM_PROTO_UDP)
1722 return VPPCOM_EINVAL;
1723 vcl_send_session_unlisten (wrk, session);
1724 session->session_state = STATE_CLOSED;
1727 session->transport.is_ip4 = server_ep->is_ip4;
1728 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1729 session->transport.rmt_port = server_ep->port;
1730 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1731 session->flags |= VCL_SESSION_F_CONNECTED;
1733 VDBG (0, "session handle %u (%s): connecting to peer %s %U "
1734 "port %d proto %s", session_handle,
1735 vppcom_session_state_str (session->session_state),
1736 session->transport.is_ip4 ? "IPv4" : "IPv6",
1737 format_ip46_address,
1738 &session->transport.rmt_ip, session->transport.is_ip4 ?
1739 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1740 clib_net_to_host_u16 (session->transport.rmt_port),
1741 vppcom_proto_str (session->session_type));
1743 vcl_send_session_connect (wrk, session);
1745 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK))
1746 return VPPCOM_EINPROGRESS;
1749 * Wait for reply from vpp if blocking
1751 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1752 vcm->cfg.session_timeout);
1754 session = vcl_session_get (wrk, session_index);
1755 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1756 session->vpp_handle, rv ? "failed" : "succeeded");
1762 vppcom_session_stream_connect (uint32_t session_handle,
1763 uint32_t parent_session_handle)
1765 vcl_worker_t *wrk = vcl_worker_get_current ();
1766 vcl_session_t *session, *parent_session;
1767 u32 session_index, parent_session_index;
1770 session = vcl_session_get_w_handle (wrk, session_handle);
1772 return VPPCOM_EBADFD;
1773 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1774 if (!parent_session)
1775 return VPPCOM_EBADFD;
1777 session_index = session->session_index;
1778 parent_session_index = parent_session->session_index;
1779 if (PREDICT_FALSE (session->is_vep))
1781 VDBG (0, "ERROR: cannot connect epoll session %u!",
1782 session->session_index);
1783 return VPPCOM_EBADFD;
1786 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1788 VDBG (0, "session handle %u [0x%llx]: session already "
1789 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1790 session_handle, session->vpp_handle,
1791 parent_session_handle, parent_session->vpp_handle,
1792 vppcom_proto_str (session->session_type), session->session_state,
1793 vppcom_session_state_str (session->session_state));
1797 /* Connect to quic session specifics */
1798 session->transport.is_ip4 = parent_session->transport.is_ip4;
1799 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1800 session->transport.rmt_port = 0;
1801 session->parent_handle = parent_session->vpp_handle;
1803 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1804 session_handle, parent_session_handle, parent_session->vpp_handle);
1807 * Send connect request and wait for reply from vpp
1809 vcl_send_session_connect (wrk, session);
1810 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1811 vcm->cfg.session_timeout);
1813 session->listener_index = parent_session_index;
1814 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1816 parent_session->n_accepted_sessions++;
1818 session = vcl_session_get (wrk, session_index);
1819 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1820 session->vpp_handle, rv ? "failed" : "succeeded");
1826 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1828 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1832 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1835 vcl_worker_t *wrk = vcl_worker_get_current ();
1836 int n_read = 0, is_nonblocking;
1837 vcl_session_t *s = 0;
1838 svm_fifo_t *rx_fifo;
1839 svm_msg_q_msg_t msg;
1844 if (PREDICT_FALSE (!buf))
1845 return VPPCOM_EINVAL;
1847 s = vcl_session_get_w_handle (wrk, session_handle);
1848 if (PREDICT_FALSE (!s || s->is_vep))
1849 return VPPCOM_EBADFD;
1851 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1853 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1854 s->session_index, s->vpp_handle, s->session_state,
1855 vppcom_session_state_str (s->session_state));
1856 return vcl_session_closed_error (s);
1859 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1860 is_ct = vcl_session_is_ct (s);
1861 mq = wrk->app_event_queue;
1862 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1865 if (svm_fifo_is_empty_cons (rx_fifo))
1869 if (vcl_session_is_closing (s))
1870 return vcl_session_closing_error (s);
1871 svm_fifo_unset_event (s->rx_fifo);
1872 return VPPCOM_EWOULDBLOCK;
1874 while (svm_fifo_is_empty_cons (rx_fifo))
1876 if (vcl_session_is_closing (s))
1877 return vcl_session_closing_error (s);
1879 svm_fifo_unset_event (s->rx_fifo);
1880 svm_msg_q_lock (mq);
1881 if (svm_msg_q_is_empty (mq))
1882 svm_msg_q_wait (mq);
1884 svm_msg_q_sub_w_lock (mq, &msg);
1885 e = svm_msg_q_msg_data (mq, &msg);
1886 svm_msg_q_unlock (mq);
1887 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1888 vcl_handle_mq_event (wrk, e);
1889 svm_msg_q_free_msg (mq, &msg);
1894 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1896 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1898 if (svm_fifo_is_empty_cons (rx_fifo))
1899 svm_fifo_unset_event (s->rx_fifo);
1901 /* Cut-through sessions might request tx notifications on rx fifos */
1902 if (PREDICT_FALSE (rx_fifo->want_deq_ntf))
1904 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1905 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1906 svm_fifo_reset_has_deq_ntf (s->rx_fifo);
1909 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1910 s->vpp_handle, n_read, rx_fifo);
1916 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1918 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1922 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1924 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1928 vppcom_session_read_segments (uint32_t session_handle,
1929 vppcom_data_segments_t ds)
1931 vcl_worker_t *wrk = vcl_worker_get_current ();
1932 int n_read = 0, is_nonblocking;
1933 vcl_session_t *s = 0;
1934 svm_fifo_t *rx_fifo;
1935 svm_msg_q_msg_t msg;
1940 s = vcl_session_get_w_handle (wrk, session_handle);
1941 if (PREDICT_FALSE (!s || s->is_vep))
1942 return VPPCOM_EBADFD;
1944 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1945 return vcl_session_closed_error (s);
1947 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1948 is_ct = vcl_session_is_ct (s);
1949 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1950 rx_fifo = s->rx_fifo;
1954 svm_fifo_unset_event (s->rx_fifo);
1956 if (svm_fifo_is_empty_cons (rx_fifo))
1960 svm_fifo_unset_event (rx_fifo);
1961 return VPPCOM_EWOULDBLOCK;
1963 while (svm_fifo_is_empty_cons (rx_fifo))
1965 if (vcl_session_is_closing (s))
1966 return vcl_session_closing_error (s);
1968 svm_fifo_unset_event (rx_fifo);
1969 svm_msg_q_lock (mq);
1970 if (svm_msg_q_is_empty (mq))
1971 svm_msg_q_wait (mq);
1973 svm_msg_q_sub_w_lock (mq, &msg);
1974 e = svm_msg_q_msg_data (mq, &msg);
1975 svm_msg_q_unlock (mq);
1976 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1977 vcl_handle_mq_event (wrk, e);
1978 svm_msg_q_free_msg (mq, &msg);
1982 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_seg_t *) ds);
1983 svm_fifo_unset_event (rx_fifo);
1989 vppcom_session_free_segments (uint32_t session_handle,
1990 vppcom_data_segments_t ds)
1992 vcl_worker_t *wrk = vcl_worker_get_current ();
1995 s = vcl_session_get_w_handle (wrk, session_handle);
1996 if (PREDICT_FALSE (!s || s->is_vep))
1999 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_seg_t *) ds);
2003 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
2005 u32 first_copy = clib_min (ds[0].len, max_bytes);
2006 clib_memcpy_fast (buf, ds[0].data, first_copy);
2007 if (first_copy < max_bytes)
2009 clib_memcpy_fast (buf + first_copy, ds[1].data,
2010 clib_min (ds[1].len, max_bytes - first_copy));
2016 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
2018 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
2022 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2024 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2026 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2032 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2033 size_t n, u8 is_flush, u8 is_dgram)
2035 int n_write, is_nonblocking;
2036 session_evt_type_t et;
2037 svm_msg_q_msg_t msg;
2038 svm_fifo_t *tx_fifo;
2043 if (PREDICT_FALSE (!buf || n == 0))
2044 return VPPCOM_EINVAL;
2046 if (PREDICT_FALSE (s->is_vep))
2048 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2049 " session!", s->session_index, s->vpp_handle);
2050 return VPPCOM_EBADFD;
2053 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2055 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2056 s->session_index, s->vpp_handle, s->session_state,
2057 vppcom_session_state_str (s->session_state));
2058 return vcl_session_closed_error (s);;
2061 is_ct = vcl_session_is_ct (s);
2062 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2063 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
2065 mq = wrk->app_event_queue;
2066 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2070 return VPPCOM_EWOULDBLOCK;
2072 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2074 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2075 if (vcl_session_is_closing (s))
2076 return vcl_session_closing_error (s);
2077 svm_msg_q_lock (mq);
2078 if (svm_msg_q_is_empty (mq))
2079 svm_msg_q_wait (mq);
2081 svm_msg_q_sub_w_lock (mq, &msg);
2082 e = svm_msg_q_msg_data (mq, &msg);
2083 svm_msg_q_unlock (mq);
2085 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
2086 vcl_handle_mq_event (wrk, e);
2087 svm_msg_q_free_msg (mq, &msg);
2091 et = SESSION_IO_EVT_TX;
2092 if (is_flush && !is_ct)
2093 et = SESSION_IO_EVT_TX_FLUSH;
2096 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2097 s->vpp_evt_q, buf, n, et,
2098 0 /* do_evt */ , SVM_Q_WAIT);
2100 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2101 0 /* do_evt */ , SVM_Q_WAIT);
2103 if (svm_fifo_set_event (s->tx_fifo))
2104 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
2107 ASSERT (n_write > 0);
2109 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2110 s->vpp_handle, n_write);
2116 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2118 vcl_worker_t *wrk = vcl_worker_get_current ();
2121 s = vcl_session_get_w_handle (wrk, session_handle);
2122 if (PREDICT_FALSE (!s))
2123 return VPPCOM_EBADFD;
2125 return vppcom_session_write_inline (wrk, s, buf, n,
2126 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2130 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2132 vcl_worker_t *wrk = vcl_worker_get_current ();
2135 s = vcl_session_get_w_handle (wrk, session_handle);
2136 if (PREDICT_FALSE (!s))
2137 return VPPCOM_EBADFD;
2139 return vppcom_session_write_inline (wrk, s, buf, n,
2140 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2143 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2144 if (PREDICT_FALSE (!_s->rx_fifo)) \
2146 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2148 if (!vcl_session_is_ct (_s)) \
2150 svm_fifo_unset_event (_s->rx_fifo); \
2151 if (svm_fifo_is_empty (_s->rx_fifo)) \
2154 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2156 svm_fifo_unset_event (_s->ct_rx_fifo); \
2157 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2163 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2164 unsigned long n_bits, unsigned long *read_map,
2165 unsigned long *write_map,
2166 unsigned long *except_map, u32 * bits_set)
2168 session_disconnected_msg_t *disconnected_msg;
2169 session_connected_msg_t *connected_msg;
2170 vcl_session_t *session;
2173 switch (e->event_type)
2175 case SESSION_IO_EVT_RX:
2176 sid = e->session_index;
2177 session = vcl_session_get (wrk, sid);
2178 if (!session || !vcl_session_is_open (session))
2180 vcl_fifo_rx_evt_valid_or_break (session);
2181 if (sid < n_bits && read_map)
2183 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2187 case SESSION_IO_EVT_TX:
2188 sid = e->session_index;
2189 session = vcl_session_get (wrk, sid);
2190 if (!session || !vcl_session_is_open (session))
2192 if (sid < n_bits && write_map)
2194 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2198 case SESSION_CTRL_EVT_ACCEPTED:
2199 session = vcl_session_accepted (wrk,
2200 (session_accepted_msg_t *) e->data);
2203 sid = session->session_index;
2204 if (sid < n_bits && read_map)
2206 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2210 case SESSION_CTRL_EVT_CONNECTED:
2211 connected_msg = (session_connected_msg_t *) e->data;
2212 sid = vcl_session_connected_handler (wrk, connected_msg);
2213 if (sid == VCL_INVALID_SESSION_INDEX)
2215 if (sid < n_bits && write_map)
2217 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2221 case SESSION_CTRL_EVT_DISCONNECTED:
2222 disconnected_msg = (session_disconnected_msg_t *) e->data;
2223 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2226 sid = session->session_index;
2227 if (sid < n_bits && except_map)
2229 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2233 case SESSION_CTRL_EVT_RESET:
2234 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2235 if (sid < n_bits && except_map)
2237 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2241 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2242 vcl_session_unlisten_reply_handler (wrk, e->data);
2244 case SESSION_CTRL_EVT_MIGRATED:
2245 vcl_session_migrated_handler (wrk, e->data);
2247 case SESSION_CTRL_EVT_CLEANUP:
2248 vcl_session_cleanup_handler (wrk, e->data);
2250 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2251 vcl_session_worker_update_reply_handler (wrk, e->data);
2253 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2254 vcl_session_req_worker_update_handler (wrk, e->data);
2256 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2257 vcl_session_app_add_segment_handler (wrk, e->data);
2259 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2260 vcl_session_app_del_segment_handler (wrk, e->data);
2263 clib_warning ("unhandled: %u", e->event_type);
2269 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2270 unsigned long n_bits, unsigned long *read_map,
2271 unsigned long *write_map, unsigned long *except_map,
2272 double time_to_wait, u32 * bits_set)
2274 svm_msg_q_msg_t *msg;
2278 svm_msg_q_lock (mq);
2279 if (svm_msg_q_is_empty (mq))
2283 svm_msg_q_unlock (mq);
2289 svm_msg_q_unlock (mq);
2292 else if (time_to_wait < 0)
2294 svm_msg_q_wait (mq);
2298 if (svm_msg_q_timedwait (mq, time_to_wait))
2300 svm_msg_q_unlock (mq);
2305 vcl_mq_dequeue_batch (wrk, mq, ~0);
2306 svm_msg_q_unlock (mq);
2308 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2310 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2311 e = svm_msg_q_msg_data (mq, msg);
2312 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2313 except_map, bits_set);
2314 svm_msg_q_free_msg (mq, msg);
2316 vec_reset_length (wrk->mq_msg_vector);
2317 vcl_handle_pending_wrk_updates (wrk);
2322 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2323 vcl_si_set * read_map, vcl_si_set * write_map,
2324 vcl_si_set * except_map, double time_to_wait,
2327 double wait = 0, start = 0;
2331 wait = time_to_wait;
2332 start = clib_time_now (&wrk->clib_time);
2337 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2338 write_map, except_map, wait, bits_set);
2344 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2352 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2353 vcl_si_set * read_map, vcl_si_set * write_map,
2354 vcl_si_set * except_map, double time_to_wait,
2357 vcl_mq_evt_conn_t *mqc;
2358 int __clib_unused n_read;
2362 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2363 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2364 vec_len (wrk->mq_events), time_to_wait);
2365 for (i = 0; i < n_mq_evts; i++)
2367 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2368 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2369 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2370 except_map, 0, bits_set);
2373 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2377 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2378 vcl_si_set * except_map, double time_to_wait)
2380 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2381 vcl_worker_t *wrk = vcl_worker_get_current ();
2382 vcl_session_t *session = 0;
2385 if (n_bits && read_map)
2387 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2388 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2389 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2390 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2392 if (n_bits && write_map)
2394 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2395 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2396 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2397 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2399 if (n_bits && except_map)
2401 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2402 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2403 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2404 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2414 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2415 if (!(session = vcl_session_get (wrk, sid)))
2417 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2422 if (vcl_session_write_ready (session))
2424 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2428 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2435 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2436 if (!(session = vcl_session_get (wrk, sid)))
2438 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2443 if (vcl_session_read_ready (session))
2445 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2453 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2455 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2456 read_map, write_map, except_map, &bits_set);
2458 vec_reset_length (wrk->unhandled_evts_vector);
2460 if (vcm->cfg.use_mq_eventfd)
2461 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2462 time_to_wait, &bits_set);
2464 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2465 time_to_wait, &bits_set);
2471 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2473 vcl_session_t *session;
2474 vppcom_epoll_t *vep;
2475 u32 sh = vep_handle;
2477 if (VPPCOM_DEBUG <= 2)
2480 session = vcl_session_get_w_handle (wrk, vep_handle);
2481 if (PREDICT_FALSE (!session))
2483 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2486 if (PREDICT_FALSE (!session->is_vep))
2488 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2491 vep = &session->vep;
2492 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2495 " is_vep_session = %u\n"
2496 " next_sh = 0x%x (%u)\n"
2497 "}\n", vep_handle, session->is_vep, session->is_vep_session,
2498 vep->next_sh, vep->next_sh);
2500 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2502 session = vcl_session_get_w_handle (wrk, sh);
2503 if (PREDICT_FALSE (!session))
2505 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2508 if (PREDICT_FALSE (session->is_vep))
2510 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2512 else if (PREDICT_FALSE (!session->is_vep_session))
2514 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2517 vep = &session->vep;
2518 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2519 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2520 sh, session->vep.vep_sh, vep_handle);
2521 if (session->is_vep_session)
2523 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2525 " next_sh = 0x%x (%u)\n"
2526 " prev_sh = 0x%x (%u)\n"
2527 " vep_sh = 0x%x (%u)\n"
2528 " ev.events = 0x%x\n"
2529 " ev.data.u64 = 0x%llx\n"
2532 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2533 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2534 vep->ev.data.u64, vep->et_mask);
2539 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2543 vppcom_epoll_create (void)
2545 vcl_worker_t *wrk = vcl_worker_get_current ();
2546 vcl_session_t *vep_session;
2548 vep_session = vcl_session_alloc (wrk);
2550 vep_session->is_vep = 1;
2551 vep_session->vep.vep_sh = ~0;
2552 vep_session->vep.next_sh = ~0;
2553 vep_session->vep.prev_sh = ~0;
2554 vep_session->vpp_handle = ~0;
2556 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2557 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2559 return vcl_session_handle (vep_session);
2563 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2564 struct epoll_event *event)
2566 vcl_worker_t *wrk = vcl_worker_get_current ();
2567 vcl_session_t *vep_session;
2568 vcl_session_t *session;
2571 if (vep_handle == session_handle)
2573 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2574 return VPPCOM_EINVAL;
2577 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2578 if (PREDICT_FALSE (!vep_session))
2580 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2581 return VPPCOM_EBADFD;
2583 if (PREDICT_FALSE (!vep_session->is_vep))
2585 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2586 return VPPCOM_EINVAL;
2589 ASSERT (vep_session->vep.vep_sh == ~0);
2590 ASSERT (vep_session->vep.prev_sh == ~0);
2592 session = vcl_session_get_w_handle (wrk, session_handle);
2593 if (PREDICT_FALSE (!session))
2595 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2596 return VPPCOM_EBADFD;
2598 if (PREDICT_FALSE (session->is_vep))
2600 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2601 return VPPCOM_EINVAL;
2607 if (PREDICT_FALSE (!event))
2609 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2610 return VPPCOM_EINVAL;
2612 if (vep_session->vep.next_sh != ~0)
2614 vcl_session_t *next_session;
2615 next_session = vcl_session_get_w_handle (wrk,
2616 vep_session->vep.next_sh);
2617 if (PREDICT_FALSE (!next_session))
2619 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2620 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2621 return VPPCOM_EBADFD;
2623 ASSERT (next_session->vep.prev_sh == vep_handle);
2624 next_session->vep.prev_sh = session_handle;
2626 session->vep.next_sh = vep_session->vep.next_sh;
2627 session->vep.prev_sh = vep_handle;
2628 session->vep.vep_sh = vep_handle;
2629 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2630 session->vep.ev = *event;
2631 session->is_vep = 0;
2632 session->is_vep_session = 1;
2633 vep_session->vep.next_sh = session_handle;
2635 if (session->tx_fifo)
2636 svm_fifo_add_want_deq_ntf (session->tx_fifo,
2637 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2639 /* Generate EPOLLOUT if tx fifo not full */
2640 if ((event->events & EPOLLOUT) &&
2641 (vcl_session_write_ready (session) > 0))
2643 session_event_t e = { 0 };
2644 e.event_type = SESSION_IO_EVT_TX;
2645 e.session_index = session->session_index;
2646 vec_add1 (wrk->unhandled_evts_vector, e);
2648 /* Generate EPOLLIN if rx fifo has data */
2649 if ((event->events & EPOLLIN) && (vcl_session_read_ready (session) > 0))
2651 session_event_t e = { 0 };
2652 e.event_type = SESSION_IO_EVT_RX;
2653 e.session_index = session->session_index;
2654 vec_add1 (wrk->unhandled_evts_vector, e);
2656 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2657 vep_handle, session_handle, event->events, event->data.u64);
2658 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2662 if (PREDICT_FALSE (!event))
2664 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2668 else if (PREDICT_FALSE (!session->is_vep_session))
2670 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2674 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2676 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2677 session_handle, session->vep.vep_sh, vep_handle);
2682 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2683 if ((event->events & EPOLLOUT) &&
2684 !(session->vep.ev.events & EPOLLOUT) &&
2685 (vcl_session_write_ready (session) > 0))
2687 session_event_t e = { 0 };
2688 e.event_type = SESSION_IO_EVT_TX;
2689 e.session_index = session->session_index;
2690 vec_add1 (wrk->unhandled_evts_vector, e);
2692 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2693 session->vep.ev = *event;
2694 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2695 vep_handle, session_handle, event->events, event->data.u64);
2699 if (PREDICT_FALSE (!session->is_vep_session))
2701 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2705 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2707 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2708 session_handle, session->vep.vep_sh, vep_handle);
2713 if (session->vep.prev_sh == vep_handle)
2714 vep_session->vep.next_sh = session->vep.next_sh;
2717 vcl_session_t *prev_session;
2718 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2719 if (PREDICT_FALSE (!prev_session))
2721 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2722 session->vep.prev_sh, session_handle);
2723 return VPPCOM_EBADFD;
2725 ASSERT (prev_session->vep.next_sh == session_handle);
2726 prev_session->vep.next_sh = session->vep.next_sh;
2728 if (session->vep.next_sh != ~0)
2730 vcl_session_t *next_session;
2731 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2732 if (PREDICT_FALSE (!next_session))
2734 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2735 session->vep.next_sh, session_handle);
2736 return VPPCOM_EBADFD;
2738 ASSERT (next_session->vep.prev_sh == session_handle);
2739 next_session->vep.prev_sh = session->vep.prev_sh;
2742 memset (&session->vep, 0, sizeof (session->vep));
2743 session->vep.next_sh = ~0;
2744 session->vep.prev_sh = ~0;
2745 session->vep.vep_sh = ~0;
2746 session->is_vep_session = 0;
2748 if (session->tx_fifo)
2749 svm_fifo_del_want_deq_ntf (session->tx_fifo, SVM_FIFO_NO_DEQ_NOTIF);
2751 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2753 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2757 VDBG (0, "Invalid operation (%d)!", op);
2761 vep_verify_epoll_chain (wrk, vep_handle);
2768 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2769 struct epoll_event *events, u32 * num_ev)
2771 session_disconnected_msg_t *disconnected_msg;
2772 session_connected_msg_t *connected_msg;
2773 u32 sid = ~0, session_events;
2774 u64 session_evt_data = ~0;
2775 vcl_session_t *session;
2778 switch (e->event_type)
2780 case SESSION_IO_EVT_RX:
2781 sid = e->session_index;
2782 if (!(session = vcl_session_get (wrk, sid)))
2784 vcl_fifo_rx_evt_valid_or_break (session);
2785 session_events = session->vep.ev.events;
2786 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2789 events[*num_ev].events |= EPOLLIN;
2790 session_evt_data = session->vep.ev.data.u64;
2791 session->has_rx_evt = 1;
2793 case SESSION_IO_EVT_TX:
2794 sid = e->session_index;
2795 if (!(session = vcl_session_get (wrk, sid)))
2797 session_events = session->vep.ev.events;
2798 if (!(EPOLLOUT & session_events))
2801 events[*num_ev].events |= EPOLLOUT;
2802 session_evt_data = session->vep.ev.data.u64;
2803 svm_fifo_reset_has_deq_ntf (session->tx_fifo);
2805 case SESSION_CTRL_EVT_ACCEPTED:
2806 session = vcl_session_accepted (wrk,
2807 (session_accepted_msg_t *) e->data);
2811 session_events = session->vep.ev.events;
2812 if (!(EPOLLIN & session_events))
2816 events[*num_ev].events |= EPOLLIN;
2817 session_evt_data = session->vep.ev.data.u64;
2819 case SESSION_CTRL_EVT_CONNECTED:
2820 connected_msg = (session_connected_msg_t *) e->data;
2821 sid = vcl_session_connected_handler (wrk, connected_msg);
2822 /* Generate EPOLLOUT because there's no connected event */
2823 if (!(session = vcl_session_get (wrk, sid)))
2825 session_events = session->vep.ev.events;
2826 if (!(EPOLLOUT & session_events))
2829 events[*num_ev].events |= EPOLLOUT;
2830 session_evt_data = session->vep.ev.data.u64;
2831 if (session->session_state & STATE_DETACHED)
2832 events[*num_ev].events |= EPOLLHUP;
2834 case SESSION_CTRL_EVT_DISCONNECTED:
2835 disconnected_msg = (session_disconnected_msg_t *) e->data;
2836 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2839 session_events = session->vep.ev.events;
2841 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2842 session_evt_data = session->vep.ev.data.u64;
2844 case SESSION_CTRL_EVT_RESET:
2845 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2846 if (!(session = vcl_session_get (wrk, sid)))
2848 session_events = session->vep.ev.events;
2850 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2851 session_evt_data = session->vep.ev.data.u64;
2853 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2854 vcl_session_unlisten_reply_handler (wrk, e->data);
2856 case SESSION_CTRL_EVT_MIGRATED:
2857 vcl_session_migrated_handler (wrk, e->data);
2859 case SESSION_CTRL_EVT_CLEANUP:
2860 vcl_session_cleanup_handler (wrk, e->data);
2862 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2863 vcl_session_req_worker_update_handler (wrk, e->data);
2865 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2866 vcl_session_worker_update_reply_handler (wrk, e->data);
2868 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2869 vcl_session_app_add_segment_handler (wrk, e->data);
2871 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2872 vcl_session_app_del_segment_handler (wrk, e->data);
2875 VDBG (0, "unhandled: %u", e->event_type);
2881 events[*num_ev].data.u64 = session_evt_data;
2882 if (EPOLLONESHOT & session_events)
2884 session = vcl_session_get (wrk, sid);
2885 session->vep.ev.events = 0;
2892 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2893 struct epoll_event *events, u32 maxevents,
2894 double wait_for_time, u32 * num_ev)
2896 svm_msg_q_msg_t *msg;
2900 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2901 goto handle_dequeued;
2903 svm_msg_q_lock (mq);
2904 if (svm_msg_q_is_empty (mq))
2908 svm_msg_q_unlock (mq);
2911 else if (wait_for_time < 0)
2913 svm_msg_q_wait (mq);
2917 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2919 svm_msg_q_unlock (mq);
2924 ASSERT (maxevents > *num_ev);
2925 vcl_mq_dequeue_batch (wrk, mq, maxevents - *num_ev);
2926 svm_msg_q_unlock (mq);
2929 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2931 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2932 e = svm_msg_q_msg_data (mq, msg);
2933 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2934 svm_msg_q_free_msg (mq, msg);
2936 vec_reset_length (wrk->mq_msg_vector);
2937 vcl_handle_pending_wrk_updates (wrk);
2942 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2943 int maxevents, u32 n_evts, double wait_for_time)
2945 double wait = 0, start = 0, now;
2949 wait = wait_for_time;
2950 start = clib_time_now (&wrk->clib_time);
2955 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2962 now = clib_time_now (&wrk->clib_time);
2963 wait -= now - start;
2972 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2973 int maxevents, u32 n_evts, double wait_for_time)
2975 vcl_mq_evt_conn_t *mqc;
2976 int __clib_unused n_read;
2980 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2982 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2983 vec_len (wrk->mq_events), wait_for_time);
2984 for (i = 0; i < n_mq_evts; i++)
2986 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2987 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2988 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
2990 if (!n_evts && n_mq_evts > 0)
2993 return (int) n_evts;
2997 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
2998 int maxevents, double wait_for_time)
3000 vcl_worker_t *wrk = vcl_worker_get_current ();
3001 vcl_session_t *vep_session;
3005 if (PREDICT_FALSE (maxevents <= 0))
3007 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3008 return VPPCOM_EINVAL;
3011 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3013 return VPPCOM_EBADFD;
3015 if (PREDICT_FALSE (!vep_session->is_vep))
3017 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3018 return VPPCOM_EINVAL;
3021 memset (events, 0, sizeof (*events) * maxevents);
3023 if (vec_len (wrk->unhandled_evts_vector))
3025 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3027 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3029 if (n_evts == maxevents)
3031 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3035 vec_reset_length (wrk->unhandled_evts_vector);
3038 if (vcm->cfg.use_mq_eventfd)
3039 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3042 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3047 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3048 void *buffer, uint32_t * buflen)
3050 vcl_worker_t *wrk = vcl_worker_get_current ();
3051 vcl_session_t *session;
3053 u32 *flags = buffer, tmp_flags = 0;
3054 vppcom_endpt_t *ep = buffer;
3056 session = vcl_session_get_w_handle (wrk, session_handle);
3058 return VPPCOM_EBADFD;
3062 case VPPCOM_ATTR_GET_NREAD:
3063 rv = vcl_session_read_ready (session);
3064 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3068 case VPPCOM_ATTR_GET_NWRITE:
3069 rv = vcl_session_write_ready (session);
3070 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3074 case VPPCOM_ATTR_GET_FLAGS:
3075 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3077 *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr,
3078 VCL_SESS_ATTR_NONBLOCK));
3079 *buflen = sizeof (*flags);
3080 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3081 "is_nonblocking = %u", session_handle, *flags,
3082 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3088 case VPPCOM_ATTR_SET_FLAGS:
3089 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3091 if (*flags & O_NONBLOCK)
3092 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
3094 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
3096 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3097 " is_nonblocking = %u", session_handle, *flags,
3098 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3104 case VPPCOM_ATTR_GET_PEER_ADDR:
3105 if (PREDICT_TRUE (buffer && buflen &&
3106 (*buflen >= sizeof (*ep)) && ep->ip))
3108 ep->is_ip4 = session->transport.is_ip4;
3109 ep->port = session->transport.rmt_port;
3110 if (session->transport.is_ip4)
3111 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3112 sizeof (ip4_address_t));
3114 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3115 sizeof (ip6_address_t));
3116 *buflen = sizeof (*ep);
3117 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3118 "addr = %U, port %u", session_handle, ep->is_ip4,
3119 format_ip46_address, &session->transport.rmt_ip,
3120 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3121 clib_net_to_host_u16 (ep->port));
3127 case VPPCOM_ATTR_GET_LCL_ADDR:
3128 if (PREDICT_TRUE (buffer && buflen &&
3129 (*buflen >= sizeof (*ep)) && ep->ip))
3131 ep->is_ip4 = session->transport.is_ip4;
3132 ep->port = session->transport.lcl_port;
3133 if (session->transport.is_ip4)
3134 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3135 sizeof (ip4_address_t));
3137 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3138 sizeof (ip6_address_t));
3139 *buflen = sizeof (*ep);
3140 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3141 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3142 &session->transport.lcl_ip,
3143 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3144 clib_net_to_host_u16 (ep->port));
3150 case VPPCOM_ATTR_SET_LCL_ADDR:
3151 if (PREDICT_TRUE (buffer && buflen &&
3152 (*buflen >= sizeof (*ep)) && ep->ip))
3154 session->transport.is_ip4 = ep->is_ip4;
3155 session->transport.lcl_port = ep->port;
3156 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3157 *buflen = sizeof (*ep);
3158 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3159 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3160 &session->transport.lcl_ip,
3161 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3162 clib_net_to_host_u16 (ep->port));
3168 case VPPCOM_ATTR_GET_LIBC_EPFD:
3169 rv = session->libc_epfd;
3170 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3173 case VPPCOM_ATTR_SET_LIBC_EPFD:
3174 if (PREDICT_TRUE (buffer && buflen &&
3175 (*buflen == sizeof (session->libc_epfd))))
3177 session->libc_epfd = *(int *) buffer;
3178 *buflen = sizeof (session->libc_epfd);
3180 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3181 session->libc_epfd, *buflen);
3187 case VPPCOM_ATTR_GET_PROTOCOL:
3188 if (buffer && buflen && (*buflen >= sizeof (int)))
3190 *(int *) buffer = session->session_type;
3191 *buflen = sizeof (int);
3193 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3194 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3200 case VPPCOM_ATTR_GET_LISTEN:
3201 if (buffer && buflen && (*buflen >= sizeof (int)))
3203 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3204 VCL_SESS_ATTR_LISTEN);
3205 *buflen = sizeof (int);
3207 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3214 case VPPCOM_ATTR_GET_ERROR:
3215 if (buffer && buflen && (*buflen >= sizeof (int)))
3217 *(int *) buffer = 0;
3218 *buflen = sizeof (int);
3220 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3221 *(int *) buffer, *buflen);
3227 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3228 if (buffer && buflen && (*buflen >= sizeof (u32)))
3232 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3234 svm_fifo_size (session->tx_fifo) :
3235 vcm->cfg.tx_fifo_size);
3236 *buflen = sizeof (u32);
3238 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3239 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3246 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3247 if (buffer && buflen && (*buflen == sizeof (u32)))
3250 session->sndbuf_size = *(u32 *) buffer;
3251 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3252 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3259 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3260 if (buffer && buflen && (*buflen >= sizeof (u32)))
3264 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3266 svm_fifo_size (session->rx_fifo) :
3267 vcm->cfg.rx_fifo_size);
3268 *buflen = sizeof (u32);
3270 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3271 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3277 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3278 if (buffer && buflen && (*buflen == sizeof (u32)))
3281 session->rcvbuf_size = *(u32 *) buffer;
3282 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3283 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3290 case VPPCOM_ATTR_GET_REUSEADDR:
3291 if (buffer && buflen && (*buflen >= sizeof (int)))
3294 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3295 VCL_SESS_ATTR_REUSEADDR);
3296 *buflen = sizeof (int);
3298 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3299 *(int *) buffer, *buflen);
3305 case VPPCOM_ATTR_SET_REUSEADDR:
3306 if (buffer && buflen && (*buflen == sizeof (int)) &&
3307 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3310 if (*(int *) buffer)
3311 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
3313 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
3315 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3316 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEADDR),
3323 case VPPCOM_ATTR_GET_REUSEPORT:
3324 if (buffer && buflen && (*buflen >= sizeof (int)))
3327 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3328 VCL_SESS_ATTR_REUSEPORT);
3329 *buflen = sizeof (int);
3331 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3332 *(int *) buffer, *buflen);
3338 case VPPCOM_ATTR_SET_REUSEPORT:
3339 if (buffer && buflen && (*buflen == sizeof (int)) &&
3340 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3343 if (*(int *) buffer)
3344 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
3346 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
3348 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3349 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEPORT),
3356 case VPPCOM_ATTR_GET_BROADCAST:
3357 if (buffer && buflen && (*buflen >= sizeof (int)))
3360 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3361 VCL_SESS_ATTR_BROADCAST);
3362 *buflen = sizeof (int);
3364 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3365 *(int *) buffer, *buflen);
3371 case VPPCOM_ATTR_SET_BROADCAST:
3372 if (buffer && buflen && (*buflen == sizeof (int)))
3375 if (*(int *) buffer)
3376 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
3378 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
3380 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3381 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_BROADCAST),
3388 case VPPCOM_ATTR_GET_V6ONLY:
3389 if (buffer && buflen && (*buflen >= sizeof (int)))
3392 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3393 VCL_SESS_ATTR_V6ONLY);
3394 *buflen = sizeof (int);
3396 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3397 *(int *) buffer, *buflen);
3403 case VPPCOM_ATTR_SET_V6ONLY:
3404 if (buffer && buflen && (*buflen == sizeof (int)))
3407 if (*(int *) buffer)
3408 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
3410 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
3412 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3413 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_V6ONLY),
3420 case VPPCOM_ATTR_GET_KEEPALIVE:
3421 if (buffer && buflen && (*buflen >= sizeof (int)))
3424 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3425 VCL_SESS_ATTR_KEEPALIVE);
3426 *buflen = sizeof (int);
3428 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3429 *(int *) buffer, *buflen);
3435 case VPPCOM_ATTR_SET_KEEPALIVE:
3436 if (buffer && buflen && (*buflen == sizeof (int)))
3439 if (*(int *) buffer)
3440 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3442 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3444 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3445 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_KEEPALIVE),
3452 case VPPCOM_ATTR_GET_TCP_NODELAY:
3453 if (buffer && buflen && (*buflen >= sizeof (int)))
3456 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3457 VCL_SESS_ATTR_TCP_NODELAY);
3458 *buflen = sizeof (int);
3460 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3461 *(int *) buffer, *buflen);
3467 case VPPCOM_ATTR_SET_TCP_NODELAY:
3468 if (buffer && buflen && (*buflen == sizeof (int)))
3471 if (*(int *) buffer)
3472 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3474 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3476 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3477 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_NODELAY),
3484 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3485 if (buffer && buflen && (*buflen >= sizeof (int)))
3488 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3489 VCL_SESS_ATTR_TCP_KEEPIDLE);
3490 *buflen = sizeof (int);
3492 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3493 *(int *) buffer, *buflen);
3499 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3500 if (buffer && buflen && (*buflen == sizeof (int)))
3503 if (*(int *) buffer)
3504 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3506 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3508 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3509 VCL_SESS_ATTR_TEST (session->attr,
3510 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3516 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3517 if (buffer && buflen && (*buflen >= sizeof (int)))
3520 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3521 VCL_SESS_ATTR_TCP_KEEPINTVL);
3522 *buflen = sizeof (int);
3524 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3525 *(int *) buffer, *buflen);
3531 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3532 if (buffer && buflen && (*buflen == sizeof (int)))
3535 if (*(int *) buffer)
3536 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3538 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3540 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3541 VCL_SESS_ATTR_TEST (session->attr,
3542 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3548 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3549 if (buffer && buflen && (*buflen >= sizeof (u32)))
3552 *(u32 *) buffer = session->user_mss;
3553 *buflen = sizeof (int);
3555 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3556 *(int *) buffer, *buflen);
3562 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3563 if (buffer && buflen && (*buflen == sizeof (u32)))
3566 session->user_mss = *(u32 *) buffer;
3568 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3569 session->user_mss, *buflen);
3575 case VPPCOM_ATTR_SET_SHUT:
3576 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3577 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3578 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3579 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3582 case VPPCOM_ATTR_GET_SHUT:
3583 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3585 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3588 *(int *) buffer = SHUT_RD;
3589 else if (tmp_flags == 2)
3590 *(int *) buffer = SHUT_WR;
3591 else if (tmp_flags == 3)
3592 *(int *) buffer = SHUT_RDWR;
3593 *buflen = sizeof (int);
3604 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3605 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3607 vcl_worker_t *wrk = vcl_worker_get_current ();
3608 vcl_session_t *session;
3612 rv = vppcom_session_read (session_handle, buffer, buflen);
3613 else if (flags & MSG_PEEK)
3614 rv = vppcom_session_peek (session_handle, buffer, buflen);
3617 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3618 return VPPCOM_EAFNOSUPPORT;
3623 session = vcl_session_get_w_handle (wrk, session_handle);
3624 if (session->transport.is_ip4)
3625 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3626 sizeof (ip4_address_t));
3628 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3629 sizeof (ip6_address_t));
3630 ep->is_ip4 = session->transport.is_ip4;
3631 ep->port = session->transport.rmt_port;
3638 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3639 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3641 vcl_worker_t *wrk = vcl_worker_get_current ();
3644 s = vcl_session_get_w_handle (wrk, session_handle);
3646 return VPPCOM_EBADFD;
3649 return VPPCOM_EINVAL;
3653 if (s->session_type != VPPCOM_PROTO_UDP
3654 || (s->flags & VCL_SESSION_F_CONNECTED))
3655 return VPPCOM_EINVAL;
3657 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3658 if (PREDICT_FALSE (s->session_state == STATE_CLOSED))
3660 vcl_send_session_connect (wrk, s);
3664 s->transport.is_ip4 = ep->is_ip4;
3665 s->transport.rmt_port = ep->port;
3666 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3672 // TBD check the flags and do the right thing
3673 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3676 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3677 s->is_dgram ? 1 : 0));
3681 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3683 vcl_worker_t *wrk = vcl_worker_get_current ();
3684 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3685 u32 i, keep_trying = 1;
3686 svm_msg_q_msg_t msg;
3690 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3693 return VPPCOM_EFAULT;
3697 vcl_session_t *session;
3699 /* Dequeue all events and drop all unhandled io events */
3700 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3702 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3703 vcl_handle_mq_event (wrk, e);
3704 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3706 vec_reset_length (wrk->unhandled_evts_vector);
3708 for (i = 0; i < n_sids; i++)
3710 session = vcl_session_get (wrk, vp[i].sh);
3713 vp[i].revents = POLLHUP;
3720 if (POLLIN & vp[i].events)
3722 rv = vcl_session_read_ready (session);
3725 vp[i].revents |= POLLIN;
3732 case VPPCOM_ECONNRESET:
3733 vp[i].revents = POLLHUP;
3737 vp[i].revents = POLLERR;
3744 if (POLLOUT & vp[i].events)
3746 rv = vcl_session_write_ready (session);
3749 vp[i].revents |= POLLOUT;
3756 case VPPCOM_ECONNRESET:
3757 vp[i].revents = POLLHUP;
3761 vp[i].revents = POLLERR;
3768 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3770 vp[i].revents = POLLNVAL;
3774 if (wait_for_time != -1)
3775 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3777 while ((num_ev == 0) && keep_trying);
3783 vppcom_mq_epoll_fd (void)
3785 vcl_worker_t *wrk = vcl_worker_get_current ();
3786 return wrk->mqs_epfd;
3790 vppcom_session_index (vcl_session_handle_t session_handle)
3792 return session_handle & 0xFFFFFF;
3796 vppcom_session_worker (vcl_session_handle_t session_handle)
3798 return session_handle >> 24;
3802 vppcom_worker_register (void)
3808 if (!vcl_worker_alloc_and_init ())
3809 return VPPCOM_EEXIST;
3811 wrk = vcl_worker_get_current ();
3812 wrk_name = format (0, "%s-wrk-%u", vcm->app_name, wrk->wrk_index);
3814 rv = vppcom_connect_to_vpp ((char *) wrk_name);
3815 vec_free (wrk_name);
3818 return VPPCOM_EFAULT;
3820 if (vcl_worker_register_with_vpp ())
3821 return VPPCOM_EEXIST;
3827 vppcom_worker_unregister (void)
3829 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3830 vcl_set_worker_index (~0);
3834 vppcom_worker_index (void)
3836 return vcl_get_worker_index ();
3840 vppcom_worker_mqs_epfd (void)
3842 vcl_worker_t *wrk = vcl_worker_get_current ();
3843 if (!vcm->cfg.use_mq_eventfd)
3845 return wrk->mqs_epfd;
3849 vppcom_session_is_connectable_listener (uint32_t session_handle)
3851 vcl_session_t *session;
3852 vcl_worker_t *wrk = vcl_worker_get_current ();
3853 session = vcl_session_get_w_handle (wrk, session_handle);
3855 return VPPCOM_EBADFD;
3856 return vcl_session_is_connectable_listener (wrk, session);
3860 vppcom_session_listener (uint32_t session_handle)
3862 vcl_worker_t *wrk = vcl_worker_get_current ();
3863 vcl_session_t *listen_session, *session;
3864 session = vcl_session_get_w_handle (wrk, session_handle);
3866 return VPPCOM_EBADFD;
3867 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3868 return VPPCOM_EBADFD;
3869 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3870 if (!listen_session)
3871 return VPPCOM_EBADFD;
3872 return vcl_session_handle (listen_session);
3876 vppcom_session_n_accepted (uint32_t session_handle)
3878 vcl_worker_t *wrk = vcl_worker_get_current ();
3879 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3881 return VPPCOM_EBADFD;
3882 return session->n_accepted_sessions;
3886 * fd.io coding-style-patch-verification: ON
3889 * eval: (c-set-style "gnu")