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;
1261 vppcom_session_create (u8 proto, u8 is_nonblocking)
1263 vcl_worker_t *wrk = vcl_worker_get_current ();
1264 vcl_session_t *session;
1266 session = vcl_session_alloc (wrk);
1268 session->session_type = proto;
1269 session->session_state = STATE_CLOSED;
1270 session->vpp_handle = ~0;
1271 session->is_dgram = vcl_proto_is_dgram (proto);
1274 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
1276 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1277 is_nonblocking, session_index);
1279 VDBG (0, "created session %u", session->session_index);
1281 return vcl_session_handle (session);
1285 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * session,
1286 vcl_session_handle_t sh, u8 do_disconnect)
1288 vcl_session_state_t state;
1289 u32 next_sh, vep_sh;
1294 is_vep = session->is_vep;
1295 next_sh = session->vep.next_sh;
1296 vep_sh = session->vep.vep_sh;
1297 state = session->session_state;
1298 vpp_handle = session->vpp_handle;
1300 VDBG (1, "session %u [0x%llx] closing", session->session_index, vpp_handle);
1304 while (next_sh != ~0)
1306 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1307 if (PREDICT_FALSE (rv < 0))
1308 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1309 " failed! rv %d (%s)", vpp_handle, next_sh, vep_sh, rv,
1310 vppcom_retval_str (rv));
1312 next_sh = session->vep.next_sh;
1317 if (session->is_vep_session)
1319 rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, sh, 0);
1321 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1322 "failed! rv %d (%s)", session->session_index, vpp_handle,
1323 vep_sh, rv, vppcom_retval_str (rv));
1328 VDBG (1, "session %u [0x%llx] disconnect skipped",
1329 session->session_index, vpp_handle);
1333 if (state & STATE_LISTEN)
1335 rv = vppcom_session_unbind (sh);
1336 if (PREDICT_FALSE (rv < 0))
1337 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1338 "rv %d (%s)", session->session_index, vpp_handle, rv,
1339 vppcom_retval_str (rv));
1342 else if ((state & STATE_OPEN)
1343 || (vcl_session_is_connectable_listener (wrk, session)))
1345 rv = vppcom_session_disconnect (sh);
1346 if (PREDICT_FALSE (rv < 0))
1347 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1348 " rv %d (%s)", session->session_index, vpp_handle,
1349 rv, vppcom_retval_str (rv));
1351 else if (state == STATE_DISCONNECT)
1353 svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, session);
1354 vcl_send_session_reset_reply (mq, wrk->my_client_index,
1355 session->vpp_handle, 0);
1357 else if (state == STATE_DETACHED)
1359 /* Should not happen. VPP cleaned up before app confirmed close */
1360 VDBG (0, "vpp freed session %d before close", session->session_index);
1364 session->session_state = STATE_CLOSED;
1366 /* Session is removed only after vpp confirms the disconnect */
1370 vcl_session_table_del_vpp_handle (wrk, vpp_handle);
1372 vcl_session_free (wrk, session);
1373 vcl_evt (VCL_EVT_CLOSE, session, rv);
1379 vppcom_session_close (uint32_t session_handle)
1381 vcl_worker_t *wrk = vcl_worker_get_current ();
1382 vcl_session_t *session;
1384 session = vcl_session_get_w_handle (wrk, session_handle);
1386 return VPPCOM_EBADFD;
1387 return vcl_session_cleanup (wrk, session, session_handle,
1388 1 /* do_disconnect */ );
1392 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1394 vcl_worker_t *wrk = vcl_worker_get_current ();
1395 vcl_session_t *session = 0;
1398 return VPPCOM_EINVAL;
1400 session = vcl_session_get_w_handle (wrk, session_handle);
1402 return VPPCOM_EBADFD;
1404 if (session->is_vep)
1406 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1407 session->session_index);
1408 return VPPCOM_EBADFD;
1411 session->transport.is_ip4 = ep->is_ip4;
1413 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1414 sizeof (ip4_address_t));
1416 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1417 sizeof (ip6_address_t));
1418 session->transport.lcl_port = ep->port;
1420 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1421 "proto %s", session->session_index, session_handle,
1422 session->transport.is_ip4 ? "IPv4" : "IPv6",
1423 format_ip46_address, &session->transport.lcl_ip,
1424 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1425 clib_net_to_host_u16 (session->transport.lcl_port),
1426 vppcom_proto_str (session->session_type));
1427 vcl_evt (VCL_EVT_BIND, session);
1429 if (session->session_type == VPPCOM_PROTO_UDP)
1430 vppcom_session_listen (session_handle, 10);
1436 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1438 vcl_worker_t *wrk = vcl_worker_get_current ();
1439 vcl_session_t *listen_session = 0;
1440 u64 listen_vpp_handle;
1443 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1444 if (!listen_session || listen_session->is_vep)
1445 return VPPCOM_EBADFD;
1447 if (q_len == 0 || q_len == ~0)
1448 q_len = vcm->cfg.listen_queue_size;
1450 listen_vpp_handle = listen_session->vpp_handle;
1451 if (listen_session->session_state & STATE_LISTEN)
1453 VDBG (0, "session %u [0x%llx]: already in listen state!",
1454 listen_sh, listen_vpp_handle);
1458 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1461 * Send listen request to vpp and wait for reply
1463 vcl_send_session_listen (wrk, listen_session);
1464 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1466 vcm->cfg.session_timeout);
1468 if (PREDICT_FALSE (rv))
1470 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1471 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1472 listen_sh, listen_session->vpp_handle, rv,
1473 vppcom_retval_str (rv));
1481 vppcom_session_tls_add_cert (uint32_t session_handle, char *cert,
1485 vcl_worker_t *wrk = vcl_worker_get_current ();
1486 vcl_session_t *session = 0;
1488 session = vcl_session_get_w_handle (wrk, session_handle);
1490 return VPPCOM_EBADFD;
1492 if (cert_len == 0 || cert_len == ~0)
1493 return VPPCOM_EBADFD;
1496 * Send listen request to vpp and wait for reply
1498 vppcom_send_application_tls_cert_add (session, cert, cert_len);
1499 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1500 vcl_wait_for_app_state_change (STATE_APP_READY);
1506 vppcom_session_tls_add_key (uint32_t session_handle, char *key,
1510 vcl_worker_t *wrk = vcl_worker_get_current ();
1511 vcl_session_t *session = 0;
1513 session = vcl_session_get_w_handle (wrk, session_handle);
1515 return VPPCOM_EBADFD;
1517 if (key_len == 0 || key_len == ~0)
1518 return VPPCOM_EBADFD;
1520 vppcom_send_application_tls_key_add (session, key, key_len);
1521 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1522 vcl_wait_for_app_state_change (STATE_APP_READY);
1527 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1531 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1533 return VPPCOM_EBADFD;
1536 if ((ls->session_state != STATE_LISTEN)
1537 && (!vcl_session_is_connectable_listener (wrk, ls)))
1540 "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1541 " (%s)", ls->vpp_handle, ls->session_state,
1542 vppcom_session_state_str (ls->session_state));
1543 return VPPCOM_EBADFD;
1549 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1551 if (!strcmp (proto_str, "TCP"))
1552 *proto = VPPCOM_PROTO_TCP;
1553 else if (!strcmp (proto_str, "tcp"))
1554 *proto = VPPCOM_PROTO_TCP;
1555 else if (!strcmp (proto_str, "UDP"))
1556 *proto = VPPCOM_PROTO_UDP;
1557 else if (!strcmp (proto_str, "udp"))
1558 *proto = VPPCOM_PROTO_UDP;
1559 else if (!strcmp (proto_str, "UDPC"))
1560 *proto = VPPCOM_PROTO_UDPC;
1561 else if (!strcmp (proto_str, "udpc"))
1562 *proto = VPPCOM_PROTO_UDPC;
1563 else if (!strcmp (proto_str, "TLS"))
1564 *proto = VPPCOM_PROTO_TLS;
1565 else if (!strcmp (proto_str, "tls"))
1566 *proto = VPPCOM_PROTO_TLS;
1567 else if (!strcmp (proto_str, "QUIC"))
1568 *proto = VPPCOM_PROTO_QUIC;
1569 else if (!strcmp (proto_str, "quic"))
1570 *proto = VPPCOM_PROTO_QUIC;
1577 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1580 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1581 vcl_worker_t *wrk = vcl_worker_get_current ();
1582 session_accepted_msg_t accepted_msg;
1583 vcl_session_t *listen_session = 0;
1584 vcl_session_t *client_session = 0;
1585 vcl_session_msg_t *evt;
1586 svm_msg_q_msg_t msg;
1591 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1592 if (!listen_session)
1593 return VPPCOM_EBADFD;
1595 listen_session_index = listen_session->session_index;
1596 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1599 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1601 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1602 accept_flags = evt->flags;
1603 accepted_msg = evt->accepted_msg;
1607 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1608 VCL_SESS_ATTR_NONBLOCK);
1611 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1612 return VPPCOM_EAGAIN;
1614 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1615 return VPPCOM_EAGAIN;
1617 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1618 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1620 vcl_handle_mq_event (wrk, e);
1621 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1624 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1625 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1631 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1632 listen_session_index);
1633 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1634 return VPPCOM_ECONNABORTED;
1636 listen_session = vcl_session_get (wrk, listen_session_index);
1637 client_session = vcl_session_get (wrk, client_session_index);
1639 if (flags & O_NONBLOCK)
1640 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1642 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1643 " flags %d, is_nonblocking %u", listen_session->session_index,
1644 listen_session->vpp_handle, client_session_index,
1645 client_session->vpp_handle, flags,
1646 VCL_SESS_ATTR_TEST (client_session->attr, VCL_SESS_ATTR_NONBLOCK));
1650 ep->is_ip4 = client_session->transport.is_ip4;
1651 ep->port = client_session->transport.rmt_port;
1652 if (client_session->transport.is_ip4)
1653 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1654 sizeof (ip4_address_t));
1656 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1657 sizeof (ip6_address_t));
1660 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1661 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1662 client_session_index, client_session->vpp_handle,
1663 format_ip46_address, &client_session->transport.rmt_ip,
1664 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1665 clib_net_to_host_u16 (client_session->transport.rmt_port),
1666 format_ip46_address, &client_session->transport.lcl_ip,
1667 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1668 clib_net_to_host_u16 (client_session->transport.lcl_port));
1669 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1670 client_session_index);
1673 * Session might have been closed already
1677 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1678 client_session->session_state = STATE_VPP_CLOSING;
1679 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1680 client_session->session_state = STATE_DISCONNECT;
1682 return vcl_session_handle (client_session);
1686 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1688 vcl_worker_t *wrk = vcl_worker_get_current ();
1689 vcl_session_t *session = 0;
1693 session = vcl_session_get_w_handle (wrk, session_handle);
1695 return VPPCOM_EBADFD;
1696 session_index = session->session_index;
1698 if (PREDICT_FALSE (session->is_vep))
1700 VDBG (0, "ERROR: cannot connect epoll session %u!",
1701 session->session_index);
1702 return VPPCOM_EBADFD;
1705 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1707 VDBG (0, "session handle %u [0x%llx]: session already "
1708 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1709 session_handle, session->vpp_handle,
1710 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1711 &session->transport.rmt_ip, session->transport.is_ip4 ?
1712 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1713 clib_net_to_host_u16 (session->transport.rmt_port),
1714 vppcom_proto_str (session->session_type), session->session_state,
1715 vppcom_session_state_str (session->session_state));
1719 /* Attempt to connect a connectionless listener */
1720 if (PREDICT_FALSE (session->session_state & STATE_LISTEN))
1722 if (session->session_type != VPPCOM_PROTO_UDP)
1723 return VPPCOM_EINVAL;
1724 vcl_send_session_unlisten (wrk, session);
1725 session->session_state = STATE_CLOSED;
1728 session->transport.is_ip4 = server_ep->is_ip4;
1729 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1730 session->transport.rmt_port = server_ep->port;
1731 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1732 session->flags |= VCL_SESSION_F_CONNECTED;
1734 VDBG (0, "session handle %u (%s): connecting to peer %s %U "
1735 "port %d proto %s", session_handle,
1736 vppcom_session_state_str (session->session_state),
1737 session->transport.is_ip4 ? "IPv4" : "IPv6",
1738 format_ip46_address,
1739 &session->transport.rmt_ip, session->transport.is_ip4 ?
1740 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1741 clib_net_to_host_u16 (session->transport.rmt_port),
1742 vppcom_proto_str (session->session_type));
1744 vcl_send_session_connect (wrk, session);
1746 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK))
1747 return VPPCOM_EINPROGRESS;
1750 * Wait for reply from vpp if blocking
1752 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1753 vcm->cfg.session_timeout);
1755 session = vcl_session_get (wrk, session_index);
1756 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1757 session->vpp_handle, rv ? "failed" : "succeeded");
1763 vppcom_session_stream_connect (uint32_t session_handle,
1764 uint32_t parent_session_handle)
1766 vcl_worker_t *wrk = vcl_worker_get_current ();
1767 vcl_session_t *session, *parent_session;
1768 u32 session_index, parent_session_index;
1771 session = vcl_session_get_w_handle (wrk, session_handle);
1773 return VPPCOM_EBADFD;
1774 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1775 if (!parent_session)
1776 return VPPCOM_EBADFD;
1778 session_index = session->session_index;
1779 parent_session_index = parent_session->session_index;
1780 if (PREDICT_FALSE (session->is_vep))
1782 VDBG (0, "ERROR: cannot connect epoll session %u!",
1783 session->session_index);
1784 return VPPCOM_EBADFD;
1787 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1789 VDBG (0, "session handle %u [0x%llx]: session already "
1790 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1791 session_handle, session->vpp_handle,
1792 parent_session_handle, parent_session->vpp_handle,
1793 vppcom_proto_str (session->session_type), session->session_state,
1794 vppcom_session_state_str (session->session_state));
1798 /* Connect to quic session specifics */
1799 session->transport.is_ip4 = parent_session->transport.is_ip4;
1800 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1801 session->transport.rmt_port = 0;
1802 session->parent_handle = parent_session->vpp_handle;
1804 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1805 session_handle, parent_session_handle, parent_session->vpp_handle);
1808 * Send connect request and wait for reply from vpp
1810 vcl_send_session_connect (wrk, session);
1811 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1812 vcm->cfg.session_timeout);
1814 session->listener_index = parent_session_index;
1815 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1817 parent_session->n_accepted_sessions++;
1819 session = vcl_session_get (wrk, session_index);
1820 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1821 session->vpp_handle, rv ? "failed" : "succeeded");
1827 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1829 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1833 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1836 vcl_worker_t *wrk = vcl_worker_get_current ();
1837 int n_read = 0, is_nonblocking;
1838 vcl_session_t *s = 0;
1839 svm_fifo_t *rx_fifo;
1840 svm_msg_q_msg_t msg;
1845 if (PREDICT_FALSE (!buf))
1846 return VPPCOM_EINVAL;
1848 s = vcl_session_get_w_handle (wrk, session_handle);
1849 if (PREDICT_FALSE (!s || s->is_vep))
1850 return VPPCOM_EBADFD;
1852 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1854 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1855 s->session_index, s->vpp_handle, s->session_state,
1856 vppcom_session_state_str (s->session_state));
1857 return vcl_session_closed_error (s);
1860 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1861 is_ct = vcl_session_is_ct (s);
1862 mq = wrk->app_event_queue;
1863 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1866 if (svm_fifo_is_empty_cons (rx_fifo))
1870 if (vcl_session_is_closing (s))
1871 return vcl_session_closing_error (s);
1872 svm_fifo_unset_event (s->rx_fifo);
1873 return VPPCOM_EWOULDBLOCK;
1875 while (svm_fifo_is_empty_cons (rx_fifo))
1877 if (vcl_session_is_closing (s))
1878 return vcl_session_closing_error (s);
1880 svm_fifo_unset_event (s->rx_fifo);
1881 svm_msg_q_lock (mq);
1882 if (svm_msg_q_is_empty (mq))
1883 svm_msg_q_wait (mq);
1885 svm_msg_q_sub_w_lock (mq, &msg);
1886 e = svm_msg_q_msg_data (mq, &msg);
1887 svm_msg_q_unlock (mq);
1888 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1889 vcl_handle_mq_event (wrk, e);
1890 svm_msg_q_free_msg (mq, &msg);
1895 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1897 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1899 if (svm_fifo_is_empty_cons (rx_fifo))
1900 svm_fifo_unset_event (s->rx_fifo);
1902 /* Cut-through sessions might request tx notifications on rx fifos */
1903 if (PREDICT_FALSE (rx_fifo->want_deq_ntf))
1905 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1906 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1907 svm_fifo_reset_has_deq_ntf (s->rx_fifo);
1910 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1911 s->vpp_handle, n_read, rx_fifo);
1917 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1919 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1923 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1925 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1929 vppcom_session_read_segments (uint32_t session_handle,
1930 vppcom_data_segments_t ds)
1932 vcl_worker_t *wrk = vcl_worker_get_current ();
1933 int n_read = 0, is_nonblocking;
1934 vcl_session_t *s = 0;
1935 svm_fifo_t *rx_fifo;
1936 svm_msg_q_msg_t msg;
1941 s = vcl_session_get_w_handle (wrk, session_handle);
1942 if (PREDICT_FALSE (!s || s->is_vep))
1943 return VPPCOM_EBADFD;
1945 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1946 return vcl_session_closed_error (s);
1948 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1949 is_ct = vcl_session_is_ct (s);
1950 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1951 rx_fifo = s->rx_fifo;
1955 svm_fifo_unset_event (s->rx_fifo);
1957 if (svm_fifo_is_empty_cons (rx_fifo))
1961 svm_fifo_unset_event (rx_fifo);
1962 return VPPCOM_EWOULDBLOCK;
1964 while (svm_fifo_is_empty_cons (rx_fifo))
1966 if (vcl_session_is_closing (s))
1967 return vcl_session_closing_error (s);
1969 svm_fifo_unset_event (rx_fifo);
1970 svm_msg_q_lock (mq);
1971 if (svm_msg_q_is_empty (mq))
1972 svm_msg_q_wait (mq);
1974 svm_msg_q_sub_w_lock (mq, &msg);
1975 e = svm_msg_q_msg_data (mq, &msg);
1976 svm_msg_q_unlock (mq);
1977 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1978 vcl_handle_mq_event (wrk, e);
1979 svm_msg_q_free_msg (mq, &msg);
1983 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_seg_t *) ds);
1984 svm_fifo_unset_event (rx_fifo);
1990 vppcom_session_free_segments (uint32_t session_handle,
1991 vppcom_data_segments_t ds)
1993 vcl_worker_t *wrk = vcl_worker_get_current ();
1996 s = vcl_session_get_w_handle (wrk, session_handle);
1997 if (PREDICT_FALSE (!s || s->is_vep))
2000 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_seg_t *) ds);
2004 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
2006 u32 first_copy = clib_min (ds[0].len, max_bytes);
2007 clib_memcpy_fast (buf, ds[0].data, first_copy);
2008 if (first_copy < max_bytes)
2010 clib_memcpy_fast (buf + first_copy, ds[1].data,
2011 clib_min (ds[1].len, max_bytes - first_copy));
2017 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
2019 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
2023 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2025 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2027 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2033 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2034 size_t n, u8 is_flush, u8 is_dgram)
2036 int n_write, is_nonblocking;
2037 session_evt_type_t et;
2038 svm_msg_q_msg_t msg;
2039 svm_fifo_t *tx_fifo;
2044 if (PREDICT_FALSE (!buf || n == 0))
2045 return VPPCOM_EINVAL;
2047 if (PREDICT_FALSE (s->is_vep))
2049 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2050 " session!", s->session_index, s->vpp_handle);
2051 return VPPCOM_EBADFD;
2054 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2056 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2057 s->session_index, s->vpp_handle, s->session_state,
2058 vppcom_session_state_str (s->session_state));
2059 return vcl_session_closed_error (s);;
2062 is_ct = vcl_session_is_ct (s);
2063 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2064 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
2066 mq = wrk->app_event_queue;
2067 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2071 return VPPCOM_EWOULDBLOCK;
2073 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2075 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2076 if (vcl_session_is_closing (s))
2077 return vcl_session_closing_error (s);
2078 svm_msg_q_lock (mq);
2079 if (svm_msg_q_is_empty (mq))
2080 svm_msg_q_wait (mq);
2082 svm_msg_q_sub_w_lock (mq, &msg);
2083 e = svm_msg_q_msg_data (mq, &msg);
2084 svm_msg_q_unlock (mq);
2086 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
2087 vcl_handle_mq_event (wrk, e);
2088 svm_msg_q_free_msg (mq, &msg);
2092 et = SESSION_IO_EVT_TX;
2093 if (is_flush && !is_ct)
2094 et = SESSION_IO_EVT_TX_FLUSH;
2097 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2098 s->vpp_evt_q, buf, n, et,
2099 0 /* do_evt */ , SVM_Q_WAIT);
2101 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2102 0 /* do_evt */ , SVM_Q_WAIT);
2104 if (svm_fifo_set_event (s->tx_fifo))
2105 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
2108 ASSERT (n_write > 0);
2110 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2111 s->vpp_handle, n_write);
2117 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2119 vcl_worker_t *wrk = vcl_worker_get_current ();
2122 s = vcl_session_get_w_handle (wrk, session_handle);
2123 if (PREDICT_FALSE (!s))
2124 return VPPCOM_EBADFD;
2126 return vppcom_session_write_inline (wrk, s, buf, n,
2127 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2131 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2133 vcl_worker_t *wrk = vcl_worker_get_current ();
2136 s = vcl_session_get_w_handle (wrk, session_handle);
2137 if (PREDICT_FALSE (!s))
2138 return VPPCOM_EBADFD;
2140 return vppcom_session_write_inline (wrk, s, buf, n,
2141 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2144 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2145 if (PREDICT_FALSE (!_s->rx_fifo)) \
2147 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2149 if (!vcl_session_is_ct (_s)) \
2151 svm_fifo_unset_event (_s->rx_fifo); \
2152 if (svm_fifo_is_empty (_s->rx_fifo)) \
2155 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2157 svm_fifo_unset_event (_s->ct_rx_fifo); \
2158 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2164 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2165 unsigned long n_bits, unsigned long *read_map,
2166 unsigned long *write_map,
2167 unsigned long *except_map, u32 * bits_set)
2169 session_disconnected_msg_t *disconnected_msg;
2170 session_connected_msg_t *connected_msg;
2171 vcl_session_t *session;
2174 switch (e->event_type)
2176 case SESSION_IO_EVT_RX:
2177 sid = e->session_index;
2178 session = vcl_session_get (wrk, sid);
2179 if (!session || !vcl_session_is_open (session))
2181 vcl_fifo_rx_evt_valid_or_break (session);
2182 if (sid < n_bits && read_map)
2184 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2188 case SESSION_IO_EVT_TX:
2189 sid = e->session_index;
2190 session = vcl_session_get (wrk, sid);
2191 if (!session || !vcl_session_is_open (session))
2193 if (sid < n_bits && write_map)
2195 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2199 case SESSION_CTRL_EVT_ACCEPTED:
2200 session = vcl_session_accepted (wrk,
2201 (session_accepted_msg_t *) e->data);
2204 sid = session->session_index;
2205 if (sid < n_bits && read_map)
2207 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2211 case SESSION_CTRL_EVT_CONNECTED:
2212 connected_msg = (session_connected_msg_t *) e->data;
2213 sid = vcl_session_connected_handler (wrk, connected_msg);
2214 if (sid == VCL_INVALID_SESSION_INDEX)
2216 if (sid < n_bits && write_map)
2218 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2222 case SESSION_CTRL_EVT_DISCONNECTED:
2223 disconnected_msg = (session_disconnected_msg_t *) e->data;
2224 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2227 sid = session->session_index;
2228 if (sid < n_bits && except_map)
2230 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2234 case SESSION_CTRL_EVT_RESET:
2235 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2236 if (sid < n_bits && except_map)
2238 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2242 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2243 vcl_session_unlisten_reply_handler (wrk, e->data);
2245 case SESSION_CTRL_EVT_MIGRATED:
2246 vcl_session_migrated_handler (wrk, e->data);
2248 case SESSION_CTRL_EVT_CLEANUP:
2249 vcl_session_cleanup_handler (wrk, e->data);
2251 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2252 vcl_session_worker_update_reply_handler (wrk, e->data);
2254 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2255 vcl_session_req_worker_update_handler (wrk, e->data);
2257 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2258 vcl_session_app_add_segment_handler (wrk, e->data);
2260 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2261 vcl_session_app_del_segment_handler (wrk, e->data);
2264 clib_warning ("unhandled: %u", e->event_type);
2270 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2271 unsigned long n_bits, unsigned long *read_map,
2272 unsigned long *write_map, unsigned long *except_map,
2273 double time_to_wait, u32 * bits_set)
2275 svm_msg_q_msg_t *msg;
2279 svm_msg_q_lock (mq);
2280 if (svm_msg_q_is_empty (mq))
2284 svm_msg_q_unlock (mq);
2290 svm_msg_q_unlock (mq);
2293 else if (time_to_wait < 0)
2295 svm_msg_q_wait (mq);
2299 if (svm_msg_q_timedwait (mq, time_to_wait))
2301 svm_msg_q_unlock (mq);
2306 vcl_mq_dequeue_batch (wrk, mq, ~0);
2307 svm_msg_q_unlock (mq);
2309 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2311 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2312 e = svm_msg_q_msg_data (mq, msg);
2313 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2314 except_map, bits_set);
2315 svm_msg_q_free_msg (mq, msg);
2317 vec_reset_length (wrk->mq_msg_vector);
2318 vcl_handle_pending_wrk_updates (wrk);
2323 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2324 vcl_si_set * read_map, vcl_si_set * write_map,
2325 vcl_si_set * except_map, double time_to_wait,
2328 double wait = 0, start = 0;
2332 wait = time_to_wait;
2333 start = clib_time_now (&wrk->clib_time);
2338 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2339 write_map, except_map, wait, bits_set);
2345 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2353 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2354 vcl_si_set * read_map, vcl_si_set * write_map,
2355 vcl_si_set * except_map, double time_to_wait,
2358 vcl_mq_evt_conn_t *mqc;
2359 int __clib_unused n_read;
2363 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2364 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2365 vec_len (wrk->mq_events), time_to_wait);
2366 for (i = 0; i < n_mq_evts; i++)
2368 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2369 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2370 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2371 except_map, 0, bits_set);
2374 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2378 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2379 vcl_si_set * except_map, double time_to_wait)
2381 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2382 vcl_worker_t *wrk = vcl_worker_get_current ();
2383 vcl_session_t *session = 0;
2386 if (n_bits && read_map)
2388 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2389 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2390 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2391 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2393 if (n_bits && write_map)
2395 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2396 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2397 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2398 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2400 if (n_bits && except_map)
2402 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2403 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2404 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2405 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2415 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2416 if (!(session = vcl_session_get (wrk, sid)))
2418 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2423 if (vcl_session_write_ready (session))
2425 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2429 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2436 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2437 if (!(session = vcl_session_get (wrk, sid)))
2439 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2444 if (vcl_session_read_ready (session))
2446 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2454 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2456 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2457 read_map, write_map, except_map, &bits_set);
2459 vec_reset_length (wrk->unhandled_evts_vector);
2461 if (vcm->cfg.use_mq_eventfd)
2462 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2463 time_to_wait, &bits_set);
2465 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2466 time_to_wait, &bits_set);
2472 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2474 vcl_session_t *session;
2475 vppcom_epoll_t *vep;
2476 u32 sh = vep_handle;
2478 if (VPPCOM_DEBUG <= 2)
2481 session = vcl_session_get_w_handle (wrk, vep_handle);
2482 if (PREDICT_FALSE (!session))
2484 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2487 if (PREDICT_FALSE (!session->is_vep))
2489 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2492 vep = &session->vep;
2493 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2496 " is_vep_session = %u\n"
2497 " next_sh = 0x%x (%u)\n"
2498 "}\n", vep_handle, session->is_vep, session->is_vep_session,
2499 vep->next_sh, vep->next_sh);
2501 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2503 session = vcl_session_get_w_handle (wrk, sh);
2504 if (PREDICT_FALSE (!session))
2506 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2509 if (PREDICT_FALSE (session->is_vep))
2511 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2513 else if (PREDICT_FALSE (!session->is_vep_session))
2515 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2518 vep = &session->vep;
2519 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2520 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2521 sh, session->vep.vep_sh, vep_handle);
2522 if (session->is_vep_session)
2524 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2526 " next_sh = 0x%x (%u)\n"
2527 " prev_sh = 0x%x (%u)\n"
2528 " vep_sh = 0x%x (%u)\n"
2529 " ev.events = 0x%x\n"
2530 " ev.data.u64 = 0x%llx\n"
2533 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2534 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2535 vep->ev.data.u64, vep->et_mask);
2540 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2544 vppcom_epoll_create (void)
2546 vcl_worker_t *wrk = vcl_worker_get_current ();
2547 vcl_session_t *vep_session;
2549 vep_session = vcl_session_alloc (wrk);
2551 vep_session->is_vep = 1;
2552 vep_session->vep.vep_sh = ~0;
2553 vep_session->vep.next_sh = ~0;
2554 vep_session->vep.prev_sh = ~0;
2555 vep_session->vpp_handle = ~0;
2557 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2558 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2560 return vcl_session_handle (vep_session);
2564 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2565 struct epoll_event *event)
2567 vcl_worker_t *wrk = vcl_worker_get_current ();
2568 vcl_session_t *vep_session;
2569 vcl_session_t *session;
2572 if (vep_handle == session_handle)
2574 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2575 return VPPCOM_EINVAL;
2578 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2579 if (PREDICT_FALSE (!vep_session))
2581 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2582 return VPPCOM_EBADFD;
2584 if (PREDICT_FALSE (!vep_session->is_vep))
2586 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2587 return VPPCOM_EINVAL;
2590 ASSERT (vep_session->vep.vep_sh == ~0);
2591 ASSERT (vep_session->vep.prev_sh == ~0);
2593 session = vcl_session_get_w_handle (wrk, session_handle);
2594 if (PREDICT_FALSE (!session))
2596 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2597 return VPPCOM_EBADFD;
2599 if (PREDICT_FALSE (session->is_vep))
2601 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2602 return VPPCOM_EINVAL;
2608 if (PREDICT_FALSE (!event))
2610 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2611 return VPPCOM_EINVAL;
2613 if (vep_session->vep.next_sh != ~0)
2615 vcl_session_t *next_session;
2616 next_session = vcl_session_get_w_handle (wrk,
2617 vep_session->vep.next_sh);
2618 if (PREDICT_FALSE (!next_session))
2620 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2621 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2622 return VPPCOM_EBADFD;
2624 ASSERT (next_session->vep.prev_sh == vep_handle);
2625 next_session->vep.prev_sh = session_handle;
2627 session->vep.next_sh = vep_session->vep.next_sh;
2628 session->vep.prev_sh = vep_handle;
2629 session->vep.vep_sh = vep_handle;
2630 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2631 session->vep.ev = *event;
2632 session->is_vep = 0;
2633 session->is_vep_session = 1;
2634 vep_session->vep.next_sh = session_handle;
2636 if (session->tx_fifo)
2637 svm_fifo_add_want_deq_ntf (session->tx_fifo,
2638 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2640 /* Generate EPOLLOUT if tx fifo not full */
2641 if ((event->events & EPOLLOUT) &&
2642 (vcl_session_write_ready (session) > 0))
2644 session_event_t e = { 0 };
2645 e.event_type = SESSION_IO_EVT_TX;
2646 e.session_index = session->session_index;
2647 vec_add1 (wrk->unhandled_evts_vector, e);
2649 /* Generate EPOLLIN if rx fifo has data */
2650 if ((event->events & EPOLLIN) && (vcl_session_read_ready (session) > 0))
2652 session_event_t e = { 0 };
2653 e.event_type = SESSION_IO_EVT_RX;
2654 e.session_index = session->session_index;
2655 vec_add1 (wrk->unhandled_evts_vector, e);
2657 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2658 vep_handle, session_handle, event->events, event->data.u64);
2659 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2663 if (PREDICT_FALSE (!event))
2665 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2669 else if (PREDICT_FALSE (!session->is_vep_session))
2671 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2675 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2677 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2678 session_handle, session->vep.vep_sh, vep_handle);
2683 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2684 if ((event->events & EPOLLOUT) &&
2685 !(session->vep.ev.events & EPOLLOUT) &&
2686 (vcl_session_write_ready (session) > 0))
2688 session_event_t e = { 0 };
2689 e.event_type = SESSION_IO_EVT_TX;
2690 e.session_index = session->session_index;
2691 vec_add1 (wrk->unhandled_evts_vector, e);
2693 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2694 session->vep.ev = *event;
2695 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2696 vep_handle, session_handle, event->events, event->data.u64);
2700 if (PREDICT_FALSE (!session->is_vep_session))
2702 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2706 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2708 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2709 session_handle, session->vep.vep_sh, vep_handle);
2714 if (session->vep.prev_sh == vep_handle)
2715 vep_session->vep.next_sh = session->vep.next_sh;
2718 vcl_session_t *prev_session;
2719 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2720 if (PREDICT_FALSE (!prev_session))
2722 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2723 session->vep.prev_sh, session_handle);
2724 return VPPCOM_EBADFD;
2726 ASSERT (prev_session->vep.next_sh == session_handle);
2727 prev_session->vep.next_sh = session->vep.next_sh;
2729 if (session->vep.next_sh != ~0)
2731 vcl_session_t *next_session;
2732 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2733 if (PREDICT_FALSE (!next_session))
2735 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2736 session->vep.next_sh, session_handle);
2737 return VPPCOM_EBADFD;
2739 ASSERT (next_session->vep.prev_sh == session_handle);
2740 next_session->vep.prev_sh = session->vep.prev_sh;
2743 memset (&session->vep, 0, sizeof (session->vep));
2744 session->vep.next_sh = ~0;
2745 session->vep.prev_sh = ~0;
2746 session->vep.vep_sh = ~0;
2747 session->is_vep_session = 0;
2749 if (session->tx_fifo)
2750 svm_fifo_del_want_deq_ntf (session->tx_fifo, SVM_FIFO_NO_DEQ_NOTIF);
2752 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2754 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2758 VDBG (0, "Invalid operation (%d)!", op);
2762 vep_verify_epoll_chain (wrk, vep_handle);
2769 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2770 struct epoll_event *events, u32 * num_ev)
2772 session_disconnected_msg_t *disconnected_msg;
2773 session_connected_msg_t *connected_msg;
2774 u32 sid = ~0, session_events;
2775 u64 session_evt_data = ~0;
2776 vcl_session_t *session;
2779 switch (e->event_type)
2781 case SESSION_IO_EVT_RX:
2782 sid = e->session_index;
2783 if (!(session = vcl_session_get (wrk, sid)))
2785 vcl_fifo_rx_evt_valid_or_break (session);
2786 session_events = session->vep.ev.events;
2787 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2790 events[*num_ev].events |= EPOLLIN;
2791 session_evt_data = session->vep.ev.data.u64;
2792 session->has_rx_evt = 1;
2794 case SESSION_IO_EVT_TX:
2795 sid = e->session_index;
2796 if (!(session = vcl_session_get (wrk, sid)))
2798 session_events = session->vep.ev.events;
2799 if (!(EPOLLOUT & session_events))
2802 events[*num_ev].events |= EPOLLOUT;
2803 session_evt_data = session->vep.ev.data.u64;
2804 svm_fifo_reset_has_deq_ntf (session->tx_fifo);
2806 case SESSION_CTRL_EVT_ACCEPTED:
2807 session = vcl_session_accepted (wrk,
2808 (session_accepted_msg_t *) e->data);
2812 session_events = session->vep.ev.events;
2813 if (!(EPOLLIN & session_events))
2817 events[*num_ev].events |= EPOLLIN;
2818 session_evt_data = session->vep.ev.data.u64;
2820 case SESSION_CTRL_EVT_CONNECTED:
2821 connected_msg = (session_connected_msg_t *) e->data;
2822 sid = vcl_session_connected_handler (wrk, connected_msg);
2823 /* Generate EPOLLOUT because there's no connected event */
2824 if (!(session = vcl_session_get (wrk, sid)))
2826 session_events = session->vep.ev.events;
2827 if (!(EPOLLOUT & session_events))
2830 events[*num_ev].events |= EPOLLOUT;
2831 session_evt_data = session->vep.ev.data.u64;
2832 if (session->session_state & STATE_DETACHED)
2833 events[*num_ev].events |= EPOLLHUP;
2835 case SESSION_CTRL_EVT_DISCONNECTED:
2836 disconnected_msg = (session_disconnected_msg_t *) e->data;
2837 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2840 session_events = session->vep.ev.events;
2842 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2843 session_evt_data = session->vep.ev.data.u64;
2845 case SESSION_CTRL_EVT_RESET:
2846 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2847 if (!(session = vcl_session_get (wrk, sid)))
2849 session_events = session->vep.ev.events;
2851 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2852 session_evt_data = session->vep.ev.data.u64;
2854 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2855 vcl_session_unlisten_reply_handler (wrk, e->data);
2857 case SESSION_CTRL_EVT_MIGRATED:
2858 vcl_session_migrated_handler (wrk, e->data);
2860 case SESSION_CTRL_EVT_CLEANUP:
2861 vcl_session_cleanup_handler (wrk, e->data);
2863 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2864 vcl_session_req_worker_update_handler (wrk, e->data);
2866 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2867 vcl_session_worker_update_reply_handler (wrk, e->data);
2869 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2870 vcl_session_app_add_segment_handler (wrk, e->data);
2872 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2873 vcl_session_app_del_segment_handler (wrk, e->data);
2876 VDBG (0, "unhandled: %u", e->event_type);
2882 events[*num_ev].data.u64 = session_evt_data;
2883 if (EPOLLONESHOT & session_events)
2885 session = vcl_session_get (wrk, sid);
2886 session->vep.ev.events = 0;
2893 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2894 struct epoll_event *events, u32 maxevents,
2895 double wait_for_time, u32 * num_ev)
2897 svm_msg_q_msg_t *msg;
2901 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2902 goto handle_dequeued;
2904 svm_msg_q_lock (mq);
2905 if (svm_msg_q_is_empty (mq))
2909 svm_msg_q_unlock (mq);
2912 else if (wait_for_time < 0)
2914 svm_msg_q_wait (mq);
2918 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2920 svm_msg_q_unlock (mq);
2925 ASSERT (maxevents > *num_ev);
2926 vcl_mq_dequeue_batch (wrk, mq, ~0);
2927 svm_msg_q_unlock (mq);
2930 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2932 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2933 e = svm_msg_q_msg_data (mq, msg);
2934 if (*num_ev < maxevents)
2935 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2937 vcl_handle_mq_event (wrk, e);
2938 svm_msg_q_free_msg (mq, msg);
2940 vec_reset_length (wrk->mq_msg_vector);
2941 vcl_handle_pending_wrk_updates (wrk);
2946 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2947 int maxevents, u32 n_evts, double wait_for_time)
2949 double wait = 0, start = 0, now;
2953 wait = wait_for_time;
2954 start = clib_time_now (&wrk->clib_time);
2959 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2966 now = clib_time_now (&wrk->clib_time);
2967 wait -= now - start;
2976 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2977 int maxevents, u32 n_evts, double wait_for_time)
2979 vcl_mq_evt_conn_t *mqc;
2980 int __clib_unused n_read;
2984 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2986 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2987 vec_len (wrk->mq_events), wait_for_time);
2988 for (i = 0; i < n_mq_evts; i++)
2990 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2991 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2992 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
2994 if (!n_evts && n_mq_evts > 0)
2997 return (int) n_evts;
3001 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3002 int maxevents, double wait_for_time)
3004 vcl_worker_t *wrk = vcl_worker_get_current ();
3005 vcl_session_t *vep_session;
3009 if (PREDICT_FALSE (maxevents <= 0))
3011 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3012 return VPPCOM_EINVAL;
3015 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3017 return VPPCOM_EBADFD;
3019 if (PREDICT_FALSE (!vep_session->is_vep))
3021 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3022 return VPPCOM_EINVAL;
3025 memset (events, 0, sizeof (*events) * maxevents);
3027 if (vec_len (wrk->unhandled_evts_vector))
3029 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3031 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3033 if (n_evts == maxevents)
3035 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3039 vec_reset_length (wrk->unhandled_evts_vector);
3042 if (vcm->cfg.use_mq_eventfd)
3043 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3046 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3051 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3052 void *buffer, uint32_t * buflen)
3054 vcl_worker_t *wrk = vcl_worker_get_current ();
3055 vcl_session_t *session;
3057 u32 *flags = buffer, tmp_flags = 0;
3058 vppcom_endpt_t *ep = buffer;
3060 session = vcl_session_get_w_handle (wrk, session_handle);
3062 return VPPCOM_EBADFD;
3066 case VPPCOM_ATTR_GET_NREAD:
3067 rv = vcl_session_read_ready (session);
3068 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3072 case VPPCOM_ATTR_GET_NWRITE:
3073 rv = vcl_session_write_ready (session);
3074 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3078 case VPPCOM_ATTR_GET_FLAGS:
3079 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3081 *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr,
3082 VCL_SESS_ATTR_NONBLOCK));
3083 *buflen = sizeof (*flags);
3084 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3085 "is_nonblocking = %u", session_handle, *flags,
3086 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3092 case VPPCOM_ATTR_SET_FLAGS:
3093 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3095 if (*flags & O_NONBLOCK)
3096 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
3098 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
3100 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3101 " is_nonblocking = %u", session_handle, *flags,
3102 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3108 case VPPCOM_ATTR_GET_PEER_ADDR:
3109 if (PREDICT_TRUE (buffer && buflen &&
3110 (*buflen >= sizeof (*ep)) && ep->ip))
3112 ep->is_ip4 = session->transport.is_ip4;
3113 ep->port = session->transport.rmt_port;
3114 if (session->transport.is_ip4)
3115 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3116 sizeof (ip4_address_t));
3118 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3119 sizeof (ip6_address_t));
3120 *buflen = sizeof (*ep);
3121 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3122 "addr = %U, port %u", session_handle, ep->is_ip4,
3123 format_ip46_address, &session->transport.rmt_ip,
3124 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3125 clib_net_to_host_u16 (ep->port));
3131 case VPPCOM_ATTR_GET_LCL_ADDR:
3132 if (PREDICT_TRUE (buffer && buflen &&
3133 (*buflen >= sizeof (*ep)) && ep->ip))
3135 ep->is_ip4 = session->transport.is_ip4;
3136 ep->port = session->transport.lcl_port;
3137 if (session->transport.is_ip4)
3138 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3139 sizeof (ip4_address_t));
3141 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3142 sizeof (ip6_address_t));
3143 *buflen = sizeof (*ep);
3144 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3145 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3146 &session->transport.lcl_ip,
3147 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3148 clib_net_to_host_u16 (ep->port));
3154 case VPPCOM_ATTR_SET_LCL_ADDR:
3155 if (PREDICT_TRUE (buffer && buflen &&
3156 (*buflen >= sizeof (*ep)) && ep->ip))
3158 session->transport.is_ip4 = ep->is_ip4;
3159 session->transport.lcl_port = ep->port;
3160 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3161 *buflen = sizeof (*ep);
3162 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3163 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3164 &session->transport.lcl_ip,
3165 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3166 clib_net_to_host_u16 (ep->port));
3172 case VPPCOM_ATTR_GET_LIBC_EPFD:
3173 rv = session->libc_epfd;
3174 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3177 case VPPCOM_ATTR_SET_LIBC_EPFD:
3178 if (PREDICT_TRUE (buffer && buflen &&
3179 (*buflen == sizeof (session->libc_epfd))))
3181 session->libc_epfd = *(int *) buffer;
3182 *buflen = sizeof (session->libc_epfd);
3184 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3185 session->libc_epfd, *buflen);
3191 case VPPCOM_ATTR_GET_PROTOCOL:
3192 if (buffer && buflen && (*buflen >= sizeof (int)))
3194 *(int *) buffer = session->session_type;
3195 *buflen = sizeof (int);
3197 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3198 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3204 case VPPCOM_ATTR_GET_LISTEN:
3205 if (buffer && buflen && (*buflen >= sizeof (int)))
3207 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3208 VCL_SESS_ATTR_LISTEN);
3209 *buflen = sizeof (int);
3211 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3218 case VPPCOM_ATTR_GET_ERROR:
3219 if (buffer && buflen && (*buflen >= sizeof (int)))
3221 *(int *) buffer = 0;
3222 *buflen = sizeof (int);
3224 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3225 *(int *) buffer, *buflen);
3231 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3232 if (buffer && buflen && (*buflen >= sizeof (u32)))
3236 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3238 svm_fifo_size (session->tx_fifo) :
3239 vcm->cfg.tx_fifo_size);
3240 *buflen = sizeof (u32);
3242 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3243 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3250 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3251 if (buffer && buflen && (*buflen == sizeof (u32)))
3254 session->sndbuf_size = *(u32 *) buffer;
3255 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3256 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3263 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3264 if (buffer && buflen && (*buflen >= sizeof (u32)))
3268 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3270 svm_fifo_size (session->rx_fifo) :
3271 vcm->cfg.rx_fifo_size);
3272 *buflen = sizeof (u32);
3274 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3275 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3281 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3282 if (buffer && buflen && (*buflen == sizeof (u32)))
3285 session->rcvbuf_size = *(u32 *) buffer;
3286 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3287 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3294 case VPPCOM_ATTR_GET_REUSEADDR:
3295 if (buffer && buflen && (*buflen >= sizeof (int)))
3298 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3299 VCL_SESS_ATTR_REUSEADDR);
3300 *buflen = sizeof (int);
3302 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3303 *(int *) buffer, *buflen);
3309 case VPPCOM_ATTR_SET_REUSEADDR:
3310 if (buffer && buflen && (*buflen == sizeof (int)) &&
3311 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3314 if (*(int *) buffer)
3315 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
3317 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
3319 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3320 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEADDR),
3327 case VPPCOM_ATTR_GET_REUSEPORT:
3328 if (buffer && buflen && (*buflen >= sizeof (int)))
3331 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3332 VCL_SESS_ATTR_REUSEPORT);
3333 *buflen = sizeof (int);
3335 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3336 *(int *) buffer, *buflen);
3342 case VPPCOM_ATTR_SET_REUSEPORT:
3343 if (buffer && buflen && (*buflen == sizeof (int)) &&
3344 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3347 if (*(int *) buffer)
3348 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
3350 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
3352 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3353 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEPORT),
3360 case VPPCOM_ATTR_GET_BROADCAST:
3361 if (buffer && buflen && (*buflen >= sizeof (int)))
3364 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3365 VCL_SESS_ATTR_BROADCAST);
3366 *buflen = sizeof (int);
3368 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3369 *(int *) buffer, *buflen);
3375 case VPPCOM_ATTR_SET_BROADCAST:
3376 if (buffer && buflen && (*buflen == sizeof (int)))
3379 if (*(int *) buffer)
3380 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
3382 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
3384 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3385 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_BROADCAST),
3392 case VPPCOM_ATTR_GET_V6ONLY:
3393 if (buffer && buflen && (*buflen >= sizeof (int)))
3396 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3397 VCL_SESS_ATTR_V6ONLY);
3398 *buflen = sizeof (int);
3400 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3401 *(int *) buffer, *buflen);
3407 case VPPCOM_ATTR_SET_V6ONLY:
3408 if (buffer && buflen && (*buflen == sizeof (int)))
3411 if (*(int *) buffer)
3412 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
3414 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
3416 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3417 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_V6ONLY),
3424 case VPPCOM_ATTR_GET_KEEPALIVE:
3425 if (buffer && buflen && (*buflen >= sizeof (int)))
3428 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3429 VCL_SESS_ATTR_KEEPALIVE);
3430 *buflen = sizeof (int);
3432 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3433 *(int *) buffer, *buflen);
3439 case VPPCOM_ATTR_SET_KEEPALIVE:
3440 if (buffer && buflen && (*buflen == sizeof (int)))
3443 if (*(int *) buffer)
3444 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3446 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3448 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3449 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_KEEPALIVE),
3456 case VPPCOM_ATTR_GET_TCP_NODELAY:
3457 if (buffer && buflen && (*buflen >= sizeof (int)))
3460 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3461 VCL_SESS_ATTR_TCP_NODELAY);
3462 *buflen = sizeof (int);
3464 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3465 *(int *) buffer, *buflen);
3471 case VPPCOM_ATTR_SET_TCP_NODELAY:
3472 if (buffer && buflen && (*buflen == sizeof (int)))
3475 if (*(int *) buffer)
3476 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3478 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3480 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3481 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_NODELAY),
3488 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3489 if (buffer && buflen && (*buflen >= sizeof (int)))
3492 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3493 VCL_SESS_ATTR_TCP_KEEPIDLE);
3494 *buflen = sizeof (int);
3496 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3497 *(int *) buffer, *buflen);
3503 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3504 if (buffer && buflen && (*buflen == sizeof (int)))
3507 if (*(int *) buffer)
3508 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3510 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3512 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3513 VCL_SESS_ATTR_TEST (session->attr,
3514 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3520 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3521 if (buffer && buflen && (*buflen >= sizeof (int)))
3524 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3525 VCL_SESS_ATTR_TCP_KEEPINTVL);
3526 *buflen = sizeof (int);
3528 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3529 *(int *) buffer, *buflen);
3535 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3536 if (buffer && buflen && (*buflen == sizeof (int)))
3539 if (*(int *) buffer)
3540 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3542 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3544 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3545 VCL_SESS_ATTR_TEST (session->attr,
3546 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3552 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3553 if (buffer && buflen && (*buflen >= sizeof (u32)))
3556 *(u32 *) buffer = session->user_mss;
3557 *buflen = sizeof (int);
3559 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3560 *(int *) buffer, *buflen);
3566 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3567 if (buffer && buflen && (*buflen == sizeof (u32)))
3570 session->user_mss = *(u32 *) buffer;
3572 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3573 session->user_mss, *buflen);
3579 case VPPCOM_ATTR_SET_SHUT:
3580 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3581 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3582 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3583 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3586 case VPPCOM_ATTR_GET_SHUT:
3587 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3589 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3592 *(int *) buffer = SHUT_RD;
3593 else if (tmp_flags == 2)
3594 *(int *) buffer = SHUT_WR;
3595 else if (tmp_flags == 3)
3596 *(int *) buffer = SHUT_RDWR;
3597 *buflen = sizeof (int);
3608 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3609 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3611 vcl_worker_t *wrk = vcl_worker_get_current ();
3612 vcl_session_t *session;
3616 rv = vppcom_session_read (session_handle, buffer, buflen);
3617 else if (flags & MSG_PEEK)
3618 rv = vppcom_session_peek (session_handle, buffer, buflen);
3621 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3622 return VPPCOM_EAFNOSUPPORT;
3627 session = vcl_session_get_w_handle (wrk, session_handle);
3628 if (session->transport.is_ip4)
3629 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3630 sizeof (ip4_address_t));
3632 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3633 sizeof (ip6_address_t));
3634 ep->is_ip4 = session->transport.is_ip4;
3635 ep->port = session->transport.rmt_port;
3642 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3643 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3645 vcl_worker_t *wrk = vcl_worker_get_current ();
3648 s = vcl_session_get_w_handle (wrk, session_handle);
3650 return VPPCOM_EBADFD;
3653 return VPPCOM_EINVAL;
3657 if (s->session_type != VPPCOM_PROTO_UDP
3658 || (s->flags & VCL_SESSION_F_CONNECTED))
3659 return VPPCOM_EINVAL;
3661 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3662 if (PREDICT_FALSE (s->session_state == STATE_CLOSED))
3664 vcl_send_session_connect (wrk, s);
3668 s->transport.is_ip4 = ep->is_ip4;
3669 s->transport.rmt_port = ep->port;
3670 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3676 // TBD check the flags and do the right thing
3677 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3680 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3681 s->is_dgram ? 1 : 0));
3685 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3687 vcl_worker_t *wrk = vcl_worker_get_current ();
3688 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3689 u32 i, keep_trying = 1;
3690 svm_msg_q_msg_t msg;
3694 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3697 return VPPCOM_EFAULT;
3701 vcl_session_t *session;
3703 /* Dequeue all events and drop all unhandled io events */
3704 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3706 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3707 vcl_handle_mq_event (wrk, e);
3708 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3710 vec_reset_length (wrk->unhandled_evts_vector);
3712 for (i = 0; i < n_sids; i++)
3714 session = vcl_session_get (wrk, vp[i].sh);
3717 vp[i].revents = POLLHUP;
3724 if (POLLIN & vp[i].events)
3726 rv = vcl_session_read_ready (session);
3729 vp[i].revents |= POLLIN;
3736 case VPPCOM_ECONNRESET:
3737 vp[i].revents = POLLHUP;
3741 vp[i].revents = POLLERR;
3748 if (POLLOUT & vp[i].events)
3750 rv = vcl_session_write_ready (session);
3753 vp[i].revents |= POLLOUT;
3760 case VPPCOM_ECONNRESET:
3761 vp[i].revents = POLLHUP;
3765 vp[i].revents = POLLERR;
3772 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3774 vp[i].revents = POLLNVAL;
3778 if (wait_for_time != -1)
3779 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3781 while ((num_ev == 0) && keep_trying);
3787 vppcom_mq_epoll_fd (void)
3789 vcl_worker_t *wrk = vcl_worker_get_current ();
3790 return wrk->mqs_epfd;
3794 vppcom_session_index (vcl_session_handle_t session_handle)
3796 return session_handle & 0xFFFFFF;
3800 vppcom_session_worker (vcl_session_handle_t session_handle)
3802 return session_handle >> 24;
3806 vppcom_worker_register (void)
3812 if (!vcl_worker_alloc_and_init ())
3813 return VPPCOM_EEXIST;
3815 wrk = vcl_worker_get_current ();
3816 wrk_name = format (0, "%s-wrk-%u", vcm->app_name, wrk->wrk_index);
3818 rv = vppcom_connect_to_vpp ((char *) wrk_name);
3819 vec_free (wrk_name);
3822 return VPPCOM_EFAULT;
3824 if (vcl_worker_register_with_vpp ())
3825 return VPPCOM_EEXIST;
3831 vppcom_worker_unregister (void)
3833 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3834 vcl_set_worker_index (~0);
3838 vppcom_worker_index_set (int index)
3840 vcl_set_worker_index (index);
3844 vppcom_worker_index (void)
3846 return vcl_get_worker_index ();
3850 vppcom_worker_mqs_epfd (void)
3852 vcl_worker_t *wrk = vcl_worker_get_current ();
3853 if (!vcm->cfg.use_mq_eventfd)
3855 return wrk->mqs_epfd;
3859 vppcom_session_is_connectable_listener (uint32_t session_handle)
3861 vcl_session_t *session;
3862 vcl_worker_t *wrk = vcl_worker_get_current ();
3863 session = vcl_session_get_w_handle (wrk, session_handle);
3865 return VPPCOM_EBADFD;
3866 return vcl_session_is_connectable_listener (wrk, session);
3870 vppcom_session_listener (uint32_t session_handle)
3872 vcl_worker_t *wrk = vcl_worker_get_current ();
3873 vcl_session_t *listen_session, *session;
3874 session = vcl_session_get_w_handle (wrk, session_handle);
3876 return VPPCOM_EBADFD;
3877 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3878 return VPPCOM_EBADFD;
3879 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3880 if (!listen_session)
3881 return VPPCOM_EBADFD;
3882 return vcl_session_handle (listen_session);
3886 vppcom_session_n_accepted (uint32_t session_handle)
3888 vcl_worker_t *wrk = vcl_worker_get_current ();
3889 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3891 return VPPCOM_EBADFD;
3892 return session->n_accepted_sessions;
3896 * fd.io coding-style-patch-verification: ON
3899 * eval: (c-set-style "gnu")