2 * Copyright (c) 2017-2019 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
18 #include <vcl/vppcom.h>
19 #include <vcl/vcl_debug.h>
20 #include <vcl/vcl_private.h>
21 #include <svm/fifo_segment.h>
23 __thread uword __vcl_worker_index = ~0;
26 vcl_segment_is_not_mounted (vcl_worker_t * wrk, u64 segment_handle)
30 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
33 segment_index = vcl_segment_table_lookup (segment_handle);
34 if (segment_index != VCL_INVALID_SEGMENT_INDEX)
41 vcl_mq_dequeue_batch (vcl_worker_t * wrk, svm_msg_q_t * mq, u32 n_max_msg)
47 n_msgs = clib_min (svm_msg_q_size (mq), n_max_msg);
48 for (i = 0; i < n_msgs; i++)
50 vec_add2 (wrk->mq_msg_vector, msg, 1);
51 svm_msg_q_sub_w_lock (mq, msg);
57 vppcom_session_state_str (vcl_session_state_t state)
79 case STATE_VPP_CLOSING:
80 st = "STATE_VPP_CLOSING";
83 case STATE_DISCONNECT:
84 st = "STATE_DISCONNECT";
88 st = "STATE_DETACHED";
95 case STATE_LISTEN_NO_MQ:
96 st = "STATE_LISTEN_NO_MQ";
100 st = "UNKNOWN_STATE";
108 format_ip4_address (u8 * s, va_list * args)
110 u8 *a = va_arg (*args, u8 *);
111 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
115 format_ip6_address (u8 * s, va_list * args)
117 ip6_address_t *a = va_arg (*args, ip6_address_t *);
118 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
120 i_max_n_zero = ARRAY_LEN (a->as_u16);
122 i_first_zero = i_max_n_zero;
124 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
126 u32 is_zero = a->as_u16[i] == 0;
127 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
133 if ((!is_zero && n_zeros > max_n_zeros)
134 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
136 i_max_n_zero = i_first_zero;
137 max_n_zeros = n_zeros;
138 i_first_zero = ARRAY_LEN (a->as_u16);
143 last_double_colon = 0;
144 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
146 if (i == i_max_n_zero && max_n_zeros > 1)
148 s = format (s, "::");
149 i += max_n_zeros - 1;
150 last_double_colon = 1;
154 s = format (s, "%s%x",
155 (last_double_colon || i == 0) ? "" : ":",
156 clib_net_to_host_u16 (a->as_u16[i]));
157 last_double_colon = 0;
164 /* Format an IP46 address. */
166 format_ip46_address (u8 * s, va_list * args)
168 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
169 ip46_type_t type = va_arg (*args, ip46_type_t);
175 is_ip4 = ip46_address_is_ip4 (ip46);
186 format (s, "%U", format_ip4_address, &ip46->ip4) :
187 format (s, "%U", format_ip6_address, &ip46->ip6);
191 * VPPCOM Utility Functions
195 vcl_send_session_listen (vcl_worker_t * wrk, vcl_session_t * s)
197 app_session_evt_t _app_evt, *app_evt = &_app_evt;
198 session_listen_msg_t *mp;
201 mq = vcl_worker_ctrl_mq (wrk);
202 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_LISTEN);
203 mp = (session_listen_msg_t *) app_evt->evt->data;
204 memset (mp, 0, sizeof (*mp));
205 mp->client_index = wrk->my_client_index;
206 mp->context = s->session_index;
207 mp->wrk_index = wrk->vpp_wrk_index;
208 mp->is_ip4 = s->transport.is_ip4;
209 clib_memcpy_fast (&mp->ip, &s->transport.lcl_ip, sizeof (mp->ip));
210 mp->port = s->transport.lcl_port;
211 mp->proto = s->session_type;
212 app_send_ctrl_evt_to_vpp (mq, app_evt);
216 vcl_send_session_connect (vcl_worker_t * wrk, vcl_session_t * s)
218 app_session_evt_t _app_evt, *app_evt = &_app_evt;
219 session_connect_msg_t *mp;
222 mq = vcl_worker_ctrl_mq (wrk);
223 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_CONNECT);
224 mp = (session_connect_msg_t *) app_evt->evt->data;
225 memset (mp, 0, sizeof (*mp));
226 mp->client_index = wrk->my_client_index;
227 mp->context = s->session_index;
228 mp->wrk_index = wrk->vpp_wrk_index;
229 mp->is_ip4 = s->transport.is_ip4;
230 mp->parent_handle = s->parent_handle;
231 clib_memcpy_fast (&mp->ip, &s->transport.rmt_ip, sizeof (mp->ip));
232 clib_memcpy_fast (&mp->lcl_ip, &s->transport.lcl_ip, sizeof (mp->lcl_ip));
233 mp->port = s->transport.rmt_port;
234 mp->lcl_port = s->transport.lcl_port;
235 mp->proto = s->session_type;
236 if (s->flags & VCL_SESSION_F_CONNECTED)
237 mp->flags |= TRANSPORT_CFG_F_CONNECTED;
238 app_send_ctrl_evt_to_vpp (mq, app_evt);
242 vcl_send_session_unlisten (vcl_worker_t * wrk, vcl_session_t * s)
244 app_session_evt_t _app_evt, *app_evt = &_app_evt;
245 session_unlisten_msg_t *mp;
248 mq = vcl_worker_ctrl_mq (wrk);
249 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_UNLISTEN);
250 mp = (session_unlisten_msg_t *) app_evt->evt->data;
251 memset (mp, 0, sizeof (*mp));
252 mp->client_index = wrk->my_client_index;
253 mp->wrk_index = wrk->vpp_wrk_index;
254 mp->handle = s->vpp_handle;
255 mp->context = wrk->wrk_index;
256 app_send_ctrl_evt_to_vpp (mq, app_evt);
260 vcl_send_session_disconnect (vcl_worker_t * wrk, vcl_session_t * s)
262 app_session_evt_t _app_evt, *app_evt = &_app_evt;
263 session_disconnect_msg_t *mp;
266 /* Send to thread that owns the session */
268 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_DISCONNECT);
269 mp = (session_disconnect_msg_t *) app_evt->evt->data;
270 memset (mp, 0, sizeof (*mp));
271 mp->client_index = wrk->my_client_index;
272 mp->handle = s->vpp_handle;
273 app_send_ctrl_evt_to_vpp (mq, app_evt);
277 vcl_send_app_detach (vcl_worker_t * wrk)
279 app_session_evt_t _app_evt, *app_evt = &_app_evt;
280 session_app_detach_msg_t *mp;
283 mq = vcl_worker_ctrl_mq (wrk);
284 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_DETACH);
285 mp = (session_app_detach_msg_t *) app_evt->evt->data;
286 memset (mp, 0, sizeof (*mp));
287 mp->client_index = wrk->my_client_index;
288 app_send_ctrl_evt_to_vpp (mq, app_evt);
292 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
293 session_handle_t handle, int retval)
295 app_session_evt_t _app_evt, *app_evt = &_app_evt;
296 session_accepted_reply_msg_t *rmp;
297 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
298 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
299 rmp->handle = handle;
300 rmp->context = context;
301 rmp->retval = retval;
302 app_send_ctrl_evt_to_vpp (mq, app_evt);
306 vcl_send_session_disconnected_reply (svm_msg_q_t * mq, u32 context,
307 session_handle_t handle, int retval)
309 app_session_evt_t _app_evt, *app_evt = &_app_evt;
310 session_disconnected_reply_msg_t *rmp;
311 app_alloc_ctrl_evt_to_vpp (mq, app_evt,
312 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
313 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
314 rmp->handle = handle;
315 rmp->context = context;
316 rmp->retval = retval;
317 app_send_ctrl_evt_to_vpp (mq, app_evt);
321 vcl_send_session_reset_reply (svm_msg_q_t * mq, u32 context,
322 session_handle_t handle, int retval)
324 app_session_evt_t _app_evt, *app_evt = &_app_evt;
325 session_reset_reply_msg_t *rmp;
326 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_RESET_REPLY);
327 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
328 rmp->handle = handle;
329 rmp->context = context;
330 rmp->retval = retval;
331 app_send_ctrl_evt_to_vpp (mq, app_evt);
335 vcl_send_session_worker_update (vcl_worker_t * wrk, vcl_session_t * s,
338 app_session_evt_t _app_evt, *app_evt = &_app_evt;
339 session_worker_update_msg_t *mp;
342 mq = vcl_session_vpp_evt_q (wrk, s);
343 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_WORKER_UPDATE);
344 mp = (session_worker_update_msg_t *) app_evt->evt->data;
345 mp->client_index = wrk->my_client_index;
346 mp->handle = s->vpp_handle;
347 mp->req_wrk_index = wrk->vpp_wrk_index;
348 mp->wrk_index = wrk_index;
349 app_send_ctrl_evt_to_vpp (mq, app_evt);
353 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp,
356 vcl_session_t *session, *listen_session;
357 svm_fifo_t *rx_fifo, *tx_fifo;
361 session = vcl_session_alloc (wrk);
363 listen_session = vcl_session_get (wrk, ls_index);
364 if (listen_session->vpp_handle != mp->listener_handle)
366 VDBG (0, "ERROR: listener handle %lu does not match session %u",
367 mp->listener_handle, ls_index);
371 if (vcl_segment_is_not_mounted (wrk, mp->segment_handle))
373 VDBG (0, "ERROR: segment for session %u is not mounted!",
374 session->session_index);
378 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
379 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
380 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
382 rx_fifo->client_session_index = session->session_index;
383 tx_fifo->client_session_index = session->session_index;
384 rx_fifo->client_thread_index = vcl_get_worker_index ();
385 tx_fifo->client_thread_index = vcl_get_worker_index ();
386 vpp_wrk_index = tx_fifo->master_thread_index;
387 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
388 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
390 session->vpp_handle = mp->handle;
391 session->vpp_thread_index = rx_fifo->master_thread_index;
392 session->rx_fifo = rx_fifo;
393 session->tx_fifo = tx_fifo;
395 session->session_state = STATE_ACCEPT;
396 session->transport.rmt_port = mp->rmt.port;
397 session->transport.is_ip4 = mp->rmt.is_ip4;
398 clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
399 sizeof (ip46_address_t));
401 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
402 session->transport.lcl_port = listen_session->transport.lcl_port;
403 session->transport.lcl_ip = listen_session->transport.lcl_ip;
404 session->session_type = listen_session->session_type;
405 session->is_dgram = vcl_proto_is_dgram (session->session_type);
406 session->listener_index = listen_session->session_index;
407 listen_session->n_accepted_sessions++;
409 VDBG (1, "session %u [0x%llx]: client accept request from %s address %U"
410 " port %d queue %p!", session->session_index, mp->handle,
411 mp->rmt.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->rmt.ip,
412 mp->rmt.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
413 clib_net_to_host_u16 (mp->rmt.port), session->vpp_evt_q);
414 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
416 vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context,
417 session->vpp_handle, 0);
419 return session->session_index;
422 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
423 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
424 VNET_API_ERROR_INVALID_ARGUMENT);
425 vcl_session_free (wrk, session);
426 return VCL_INVALID_SESSION_INDEX;
430 vcl_session_connected_handler (vcl_worker_t * wrk,
431 session_connected_msg_t * mp)
433 u32 session_index, vpp_wrk_index;
434 svm_fifo_t *rx_fifo, *tx_fifo;
435 vcl_session_t *session = 0;
437 session_index = mp->context;
438 session = vcl_session_get (wrk, session_index);
441 VDBG (0, "ERROR: vpp handle 0x%llx has no session index (%u)!",
442 mp->handle, session_index);
443 return VCL_INVALID_SESSION_INDEX;
447 VDBG (0, "ERROR: session index %u: connect failed! %U",
448 session_index, format_session_error, mp->retval);
449 session->session_state = STATE_DETACHED | STATE_DISCONNECT;
450 session->vpp_handle = mp->handle;
451 return session_index;
454 session->vpp_handle = mp->handle;
455 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
457 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
458 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
459 if (vcl_segment_is_not_mounted (wrk, mp->segment_handle))
461 VDBG (0, "segment for session %u is not mounted!",
462 session->session_index);
463 session->session_state = STATE_DETACHED | STATE_DISCONNECT;
464 vcl_send_session_disconnect (wrk, session);
465 return session_index;
468 rx_fifo->client_session_index = session_index;
469 tx_fifo->client_session_index = session_index;
470 rx_fifo->client_thread_index = vcl_get_worker_index ();
471 tx_fifo->client_thread_index = vcl_get_worker_index ();
473 vpp_wrk_index = tx_fifo->master_thread_index;
474 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
475 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
479 session->ct_rx_fifo = uword_to_pointer (mp->ct_rx_fifo, svm_fifo_t *);
480 session->ct_tx_fifo = uword_to_pointer (mp->ct_tx_fifo, svm_fifo_t *);
481 if (vcl_segment_is_not_mounted (wrk, mp->ct_segment_handle))
483 VDBG (0, "ct segment for session %u is not mounted!",
484 session->session_index);
485 session->session_state = STATE_DETACHED | STATE_DISCONNECT;
486 vcl_send_session_disconnect (wrk, session);
487 return session_index;
491 session->rx_fifo = rx_fifo;
492 session->tx_fifo = tx_fifo;
493 session->vpp_thread_index = rx_fifo->master_thread_index;
494 session->transport.is_ip4 = mp->lcl.is_ip4;
495 clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
496 sizeof (session->transport.lcl_ip));
497 session->transport.lcl_port = mp->lcl.port;
498 session->session_state = STATE_CONNECT;
500 /* Add it to lookup table */
501 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
503 VDBG (1, "session %u [0x%llx] connected! rx_fifo %p, refcnt %d, tx_fifo %p,"
504 " refcnt %d", session_index, mp->handle, session->rx_fifo,
505 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
507 return session_index;
511 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
513 vcl_session_msg_t *accepted_msg;
516 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
518 accepted_msg = &session->accept_evts_fifo[i];
519 if (accepted_msg->accepted_msg.handle == handle)
521 accepted_msg->flags |= flags;
529 vcl_session_reset_handler (vcl_worker_t * wrk,
530 session_reset_msg_t * reset_msg)
532 vcl_session_t *session;
535 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
536 session = vcl_session_get (wrk, sid);
539 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
540 return VCL_INVALID_SESSION_INDEX;
543 /* Caught a reset before actually accepting the session */
544 if (session->session_state == STATE_LISTEN)
547 if (!vcl_flag_accepted_session (session, reset_msg->handle,
548 VCL_ACCEPTED_F_RESET))
549 VDBG (0, "session was not accepted!");
550 return VCL_INVALID_SESSION_INDEX;
553 session->session_state = STATE_DISCONNECT;
554 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
559 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
561 vcl_session_t *session;
562 u32 sid = mp->context;
564 session = vcl_session_get (wrk, sid);
567 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
568 format_session_error, mp->retval);
571 session->session_state = STATE_DETACHED;
572 session->vpp_handle = mp->handle;
577 VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!",
579 return VCL_INVALID_SESSION_INDEX;
583 session->vpp_handle = mp->handle;
584 session->transport.is_ip4 = mp->lcl_is_ip4;
585 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
586 sizeof (ip46_address_t));
587 session->transport.lcl_port = mp->lcl_port;
588 vcl_session_table_add_listener (wrk, mp->handle, sid);
589 session->session_state = STATE_LISTEN;
591 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
592 vec_validate (wrk->vpp_event_queues, 0);
593 wrk->vpp_event_queues[0] = session->vpp_evt_q;
595 if (vcl_session_is_cl (session))
597 svm_fifo_t *rx_fifo, *tx_fifo;
598 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
599 rx_fifo = uword_to_pointer (mp->rx_fifo, svm_fifo_t *);
600 rx_fifo->client_session_index = sid;
601 tx_fifo = uword_to_pointer (mp->tx_fifo, svm_fifo_t *);
602 tx_fifo->client_session_index = sid;
603 session->rx_fifo = rx_fifo;
604 session->tx_fifo = tx_fifo;
607 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
612 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
614 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
617 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
620 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
623 if (s->session_state != STATE_DISCONNECT)
625 /* Connected udp listener */
626 if (s->session_type == VPPCOM_PROTO_UDP
627 && s->session_state == STATE_CLOSED)
630 VDBG (0, "Unlisten session in wrong state %llx", mp->handle);
635 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
636 s->session_index, mp->handle, format_session_error, mp->retval);
638 if (mp->context != wrk->wrk_index)
639 VDBG (0, "wrong context");
641 vcl_session_table_del_vpp_handle (wrk, mp->handle);
642 vcl_session_free (wrk, s);
646 vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
648 session_migrated_msg_t *mp = (session_migrated_msg_t *) data;
651 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
654 VDBG (0, "Migrated notification with wrong handle %llx", mp->handle);
658 s->vpp_thread_index = mp->vpp_thread_index;
659 s->vpp_handle = mp->new_handle;
660 s->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
662 vec_validate (wrk->vpp_event_queues, s->vpp_thread_index);
663 wrk->vpp_event_queues[s->vpp_thread_index] = s->vpp_evt_q;
665 vcl_session_table_del_vpp_handle (wrk, mp->handle);
666 vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
668 /* Generate new tx event if we have outstanding data */
669 if (svm_fifo_has_event (s->tx_fifo))
670 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
671 SESSION_IO_EVT_TX, SVM_Q_WAIT);
673 VDBG (0, "Migrated 0x%lx to thread %u 0x%lx", mp->handle,
674 s->vpp_thread_index, mp->new_handle);
677 static vcl_session_t *
678 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
680 vcl_session_msg_t *vcl_msg;
681 vcl_session_t *session;
683 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
684 if (PREDICT_FALSE (session != 0))
685 VWRN ("session overlap handle %lu state %u!", msg->handle,
686 session->session_state);
688 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
691 VERR ("couldn't find listen session: listener handle %llx",
692 msg->listener_handle);
696 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
698 vcl_msg->accepted_msg = *msg;
699 /* Session handle points to listener until fully accepted by app */
700 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
705 static vcl_session_t *
706 vcl_session_disconnected_handler (vcl_worker_t * wrk,
707 session_disconnected_msg_t * msg)
709 vcl_session_t *session;
711 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
714 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
718 /* Late disconnect notification on a session that has been closed */
719 if (session->session_state == STATE_CLOSED)
722 /* Caught a disconnect before actually accepting the session */
723 if (session->session_state == STATE_LISTEN)
725 if (!vcl_flag_accepted_session (session, msg->handle,
726 VCL_ACCEPTED_F_CLOSED))
727 VDBG (0, "session was not accepted!");
731 /* If not already reset change state */
732 if (session->session_state != STATE_DISCONNECT)
733 session->session_state = STATE_VPP_CLOSING;
739 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
741 session_cleanup_msg_t *msg;
742 vcl_session_t *session;
744 msg = (session_cleanup_msg_t *) data;
745 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
748 VDBG (0, "disconnect confirmed for unknown handle 0x%llx", msg->handle);
752 vcl_session_table_del_vpp_handle (wrk, msg->handle);
753 /* Should not happen. App did not close the connection so don't free it. */
754 if (session->session_state != STATE_CLOSED)
756 VDBG (0, "app did not close session %d", session->session_index);
757 session->session_state = STATE_DETACHED;
758 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
761 vcl_session_free (wrk, session);
765 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
767 session_req_worker_update_msg_t *msg;
770 msg = (session_req_worker_update_msg_t *) data;
771 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
775 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
779 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
781 session_worker_update_reply_msg_t *msg;
784 msg = (session_worker_update_reply_msg_t *) data;
785 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
788 VDBG (0, "unknown handle 0x%llx", msg->handle);
791 if (vcl_segment_is_not_mounted (wrk, msg->segment_handle))
793 clib_warning ("segment for session %u is not mounted!",
800 s->rx_fifo = uword_to_pointer (msg->rx_fifo, svm_fifo_t *);
801 s->tx_fifo = uword_to_pointer (msg->tx_fifo, svm_fifo_t *);
802 s->rx_fifo->client_session_index = s->session_index;
803 s->tx_fifo->client_session_index = s->session_index;
804 s->rx_fifo->client_thread_index = wrk->wrk_index;
805 s->tx_fifo->client_thread_index = wrk->wrk_index;
807 s->session_state = STATE_UPDATED;
809 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
810 s->vpp_handle, wrk->wrk_index);
814 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
816 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
817 session_app_add_segment_msg_t *msg;
821 msg = (session_app_add_segment_msg_t *) data;
825 vl_socket_client_recv_fd_msg2 (&wrk->bapi_sock_ctx, &fd, 1, 5);
826 seg_type = SSVM_SEGMENT_MEMFD;
829 segment_handle = msg->segment_handle;
830 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
832 clib_warning ("invalid segment handle");
836 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
839 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
843 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
848 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
850 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
851 vcl_segment_detach (msg->segment_handle);
852 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
856 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
858 session_disconnected_msg_t *disconnected_msg;
859 vcl_session_t *session;
861 switch (e->event_type)
863 case SESSION_IO_EVT_RX:
864 case SESSION_IO_EVT_TX:
865 session = vcl_session_get (wrk, e->session_index);
866 if (!session || !(session->session_state & STATE_OPEN))
868 vec_add1 (wrk->unhandled_evts_vector, *e);
870 case SESSION_CTRL_EVT_ACCEPTED:
871 vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
873 case SESSION_CTRL_EVT_CONNECTED:
874 vcl_session_connected_handler (wrk,
875 (session_connected_msg_t *) e->data);
877 case SESSION_CTRL_EVT_DISCONNECTED:
878 disconnected_msg = (session_disconnected_msg_t *) e->data;
879 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
882 VDBG (0, "disconnected session %u [0x%llx]", session->session_index,
883 session->vpp_handle);
885 case SESSION_CTRL_EVT_RESET:
886 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
888 case SESSION_CTRL_EVT_BOUND:
889 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
891 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
892 vcl_session_unlisten_reply_handler (wrk, e->data);
894 case SESSION_CTRL_EVT_MIGRATED:
895 vcl_session_migrated_handler (wrk, e->data);
897 case SESSION_CTRL_EVT_CLEANUP:
898 vcl_session_cleanup_handler (wrk, e->data);
900 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
901 vcl_session_req_worker_update_handler (wrk, e->data);
903 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
904 vcl_session_worker_update_reply_handler (wrk, e->data);
906 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
907 vcl_session_app_add_segment_handler (wrk, e->data);
909 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
910 vcl_session_app_del_segment_handler (wrk, e->data);
913 clib_warning ("unhandled %u", e->event_type);
919 vppcom_wait_for_session_state_change (u32 session_index,
920 vcl_session_state_t state,
923 vcl_worker_t *wrk = vcl_worker_get_current ();
924 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
925 vcl_session_t *volatile session;
931 session = vcl_session_get (wrk, session_index);
932 if (PREDICT_FALSE (!session))
934 return VPPCOM_EBADFD;
936 if (session->session_state & state)
940 if (session->session_state & STATE_DETACHED)
942 return VPPCOM_ECONNREFUSED;
945 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
950 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
951 vcl_handle_mq_event (wrk, e);
952 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
954 while (clib_time_now (&wrk->clib_time) < timeout);
956 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
957 vppcom_session_state_str (state));
958 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
960 return VPPCOM_ETIMEDOUT;
964 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
966 vcl_session_state_t state;
970 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
973 vec_foreach (sip, wrk->pending_session_wrk_updates)
975 s = vcl_session_get (wrk, *sip);
976 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
977 state = s->session_state;
978 vppcom_wait_for_session_state_change (s->session_index, STATE_UPDATED, 5);
979 s->session_state = state;
981 vec_reset_length (wrk->pending_session_wrk_updates);
985 vcl_flush_mq_events (void)
987 vcl_worker_t *wrk = vcl_worker_get_current ();
988 svm_msg_q_msg_t *msg;
993 mq = wrk->app_event_queue;
995 vcl_mq_dequeue_batch (wrk, mq, ~0);
996 svm_msg_q_unlock (mq);
998 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1000 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1001 e = svm_msg_q_msg_data (mq, msg);
1002 vcl_handle_mq_event (wrk, e);
1003 svm_msg_q_free_msg (mq, msg);
1005 vec_reset_length (wrk->mq_msg_vector);
1006 vcl_handle_pending_wrk_updates (wrk);
1010 vppcom_app_session_enable (void)
1014 if (vcm->app_state != STATE_APP_ENABLED)
1016 vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
1017 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
1018 if (PREDICT_FALSE (rv))
1020 VDBG (0, "application session enable timed out! returning %d (%s)",
1021 rv, vppcom_retval_str (rv));
1029 vppcom_app_attach (void)
1033 vppcom_app_send_attach ();
1034 rv = vcl_wait_for_app_state_change (STATE_APP_ATTACHED);
1035 if (PREDICT_FALSE (rv))
1037 VDBG (0, "application attach timed out! returning %d (%s)", rv,
1038 vppcom_retval_str (rv));
1046 vppcom_session_unbind (u32 session_handle)
1048 vcl_worker_t *wrk = vcl_worker_get_current ();
1049 session_accepted_msg_t *accepted_msg;
1050 vcl_session_t *session = 0;
1051 vcl_session_msg_t *evt;
1053 session = vcl_session_get_w_handle (wrk, session_handle);
1055 return VPPCOM_EBADFD;
1057 /* Flush pending accept events, if any */
1058 while (clib_fifo_elts (session->accept_evts_fifo))
1060 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1061 accepted_msg = &evt->accepted_msg;
1062 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1063 vcl_send_session_accepted_reply (session->vpp_evt_q,
1064 accepted_msg->context,
1065 session->vpp_handle, -1);
1067 clib_fifo_free (session->accept_evts_fifo);
1069 vcl_send_session_unlisten (wrk, session);
1071 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1072 session->vpp_handle);
1073 vcl_evt (VCL_EVT_UNBIND, session);
1075 session->vpp_handle = ~0;
1076 session->session_state = STATE_DISCONNECT;
1082 vppcom_session_disconnect (u32 session_handle)
1084 vcl_worker_t *wrk = vcl_worker_get_current ();
1085 svm_msg_q_t *vpp_evt_q;
1086 vcl_session_t *session, *listen_session;
1087 vcl_session_state_t state;
1090 session = vcl_session_get_w_handle (wrk, session_handle);
1092 return VPPCOM_EBADFD;
1094 vpp_handle = session->vpp_handle;
1095 state = session->session_state;
1097 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
1098 vpp_handle, state, vppcom_session_state_str (state));
1100 if (PREDICT_FALSE (state & STATE_LISTEN))
1102 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
1103 return VPPCOM_EBADFD;
1106 if (state & STATE_VPP_CLOSING)
1108 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
1109 vcl_send_session_disconnected_reply (vpp_evt_q, wrk->my_client_index,
1111 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
1112 session->session_index, vpp_handle);
1116 VDBG (1, "session %u [0x%llx]: sending disconnect...",
1117 session->session_index, vpp_handle);
1118 vcl_send_session_disconnect (wrk, session);
1121 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
1123 listen_session = vcl_session_get (wrk, session->listener_index);
1124 listen_session->n_accepted_sessions--;
1133 * Notify vpp of the disconnect and mark the worker as free. If we're the
1134 * last worker, do a full cleanup otherwise, since we're probably a forked
1135 * child, avoid syscalls as much as possible. We might've lost privileges.
1138 vppcom_app_exit (void)
1140 if (!pool_elts (vcm->workers))
1142 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1143 vcl_set_worker_index (~0);
1144 vcl_elog_stop (vcm);
1148 * VPPCOM Public API functions
1151 vppcom_app_create (char *app_name)
1153 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1158 VDBG (1, "already initialized");
1159 return VPPCOM_EEXIST;
1163 vppcom_cfg (&vcm->cfg);
1164 vcl_cfg = &vcm->cfg;
1166 vcm->main_cpu = pthread_self ();
1167 vcm->main_pid = getpid ();
1168 vcm->app_name = format (0, "%s", app_name);
1169 vppcom_init_error_string_table ();
1170 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1171 20 /* timeout in secs */ );
1172 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1173 clib_spinlock_init (&vcm->workers_lock);
1174 clib_rwlock_init (&vcm->segment_table_lock);
1175 atexit (vppcom_app_exit);
1177 /* Allocate default worker */
1178 vcl_worker_alloc_and_init ();
1180 /* API hookup and connect to VPP */
1181 vcl_elog_init (vcm);
1182 vcm->app_state = STATE_APP_START;
1183 rv = vppcom_connect_to_vpp (app_name);
1186 VERR ("couldn't connect to VPP!");
1189 VDBG (0, "sending session enable");
1190 rv = vppcom_app_session_enable ();
1193 VERR ("vppcom_app_session_enable() failed!");
1197 VDBG (0, "sending app attach");
1198 rv = vppcom_app_attach ();
1201 VERR ("vppcom_app_attach() failed!");
1205 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1206 vcm->workers[0].my_client_index, vcm->workers[0].my_client_index);
1212 vppcom_app_destroy (void)
1215 f64 orig_app_timeout;
1217 if (!pool_elts (vcm->workers))
1220 vcl_evt (VCL_EVT_DETACH, vcm);
1222 if (pool_elts (vcm->workers) == 1)
1224 vcl_send_app_detach (vcl_worker_get_current ());
1225 orig_app_timeout = vcm->cfg.app_timeout;
1226 vcm->cfg.app_timeout = 2.0;
1227 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
1228 vcm->cfg.app_timeout = orig_app_timeout;
1229 if (PREDICT_FALSE (rv))
1230 VDBG (0, "application detach timed out! returning %d (%s)", rv,
1231 vppcom_retval_str (rv));
1232 vec_free (vcm->app_name);
1233 vcl_worker_cleanup (vcl_worker_get_current (), 0 /* notify vpp */ );
1237 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1240 vcl_set_worker_index (~0);
1241 vcl_elog_stop (vcm);
1242 vl_client_disconnect_from_vlib ();
1246 vppcom_session_create (u8 proto, u8 is_nonblocking)
1248 vcl_worker_t *wrk = vcl_worker_get_current ();
1249 vcl_session_t *session;
1251 session = vcl_session_alloc (wrk);
1253 session->session_type = proto;
1254 session->session_state = STATE_CLOSED;
1255 session->vpp_handle = ~0;
1256 session->is_dgram = vcl_proto_is_dgram (proto);
1259 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
1261 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1262 is_nonblocking, session_index);
1264 VDBG (0, "created session %u", session->session_index);
1266 return vcl_session_handle (session);
1270 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * session,
1271 vcl_session_handle_t sh, u8 do_disconnect)
1273 vcl_session_state_t state;
1274 u32 next_sh, vep_sh;
1279 is_vep = session->is_vep;
1280 next_sh = session->vep.next_sh;
1281 vep_sh = session->vep.vep_sh;
1282 state = session->session_state;
1283 vpp_handle = session->vpp_handle;
1285 VDBG (1, "session %u [0x%llx] closing", session->session_index, vpp_handle);
1289 while (next_sh != ~0)
1291 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1292 if (PREDICT_FALSE (rv < 0))
1293 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1294 " failed! rv %d (%s)", vpp_handle, next_sh, vep_sh, rv,
1295 vppcom_retval_str (rv));
1297 next_sh = session->vep.next_sh;
1302 if (session->is_vep_session)
1304 rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, sh, 0);
1306 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1307 "failed! rv %d (%s)", session->session_index, vpp_handle,
1308 vep_sh, rv, vppcom_retval_str (rv));
1313 VDBG (1, "session %u [0x%llx] disconnect skipped",
1314 session->session_index, vpp_handle);
1318 if (state & STATE_LISTEN)
1320 rv = vppcom_session_unbind (sh);
1321 if (PREDICT_FALSE (rv < 0))
1322 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1323 "rv %d (%s)", session->session_index, vpp_handle, rv,
1324 vppcom_retval_str (rv));
1327 else if ((state & STATE_OPEN)
1328 || (vcl_session_is_connectable_listener (wrk, session)))
1330 rv = vppcom_session_disconnect (sh);
1331 if (PREDICT_FALSE (rv < 0))
1332 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1333 " rv %d (%s)", session->session_index, vpp_handle,
1334 rv, vppcom_retval_str (rv));
1336 else if (state == STATE_DISCONNECT)
1338 svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, session);
1339 vcl_send_session_reset_reply (mq, wrk->my_client_index,
1340 session->vpp_handle, 0);
1342 else if (state == STATE_DETACHED)
1344 /* Should not happen. VPP cleaned up before app confirmed close */
1345 VDBG (0, "vpp freed session %d before close", session->session_index);
1349 session->session_state = STATE_CLOSED;
1351 /* Session is removed only after vpp confirms the disconnect */
1355 vcl_session_table_del_vpp_handle (wrk, vpp_handle);
1357 vcl_session_free (wrk, session);
1358 vcl_evt (VCL_EVT_CLOSE, session, rv);
1364 vppcom_session_close (uint32_t session_handle)
1366 vcl_worker_t *wrk = vcl_worker_get_current ();
1367 vcl_session_t *session;
1369 session = vcl_session_get_w_handle (wrk, session_handle);
1371 return VPPCOM_EBADFD;
1372 return vcl_session_cleanup (wrk, session, session_handle,
1373 1 /* do_disconnect */ );
1377 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1379 vcl_worker_t *wrk = vcl_worker_get_current ();
1380 vcl_session_t *session = 0;
1383 return VPPCOM_EINVAL;
1385 session = vcl_session_get_w_handle (wrk, session_handle);
1387 return VPPCOM_EBADFD;
1389 if (session->is_vep)
1391 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1392 session->session_index);
1393 return VPPCOM_EBADFD;
1396 session->transport.is_ip4 = ep->is_ip4;
1398 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1399 sizeof (ip4_address_t));
1401 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1402 sizeof (ip6_address_t));
1403 session->transport.lcl_port = ep->port;
1405 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1406 "proto %s", session->session_index, session_handle,
1407 session->transport.is_ip4 ? "IPv4" : "IPv6",
1408 format_ip46_address, &session->transport.lcl_ip,
1409 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1410 clib_net_to_host_u16 (session->transport.lcl_port),
1411 vppcom_proto_str (session->session_type));
1412 vcl_evt (VCL_EVT_BIND, session);
1414 if (session->session_type == VPPCOM_PROTO_UDP)
1415 vppcom_session_listen (session_handle, 10);
1421 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1423 vcl_worker_t *wrk = vcl_worker_get_current ();
1424 vcl_session_t *listen_session = 0;
1425 u64 listen_vpp_handle;
1428 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1429 if (!listen_session || listen_session->is_vep)
1430 return VPPCOM_EBADFD;
1432 if (q_len == 0 || q_len == ~0)
1433 q_len = vcm->cfg.listen_queue_size;
1435 listen_vpp_handle = listen_session->vpp_handle;
1436 if (listen_session->session_state & STATE_LISTEN)
1438 VDBG (0, "session %u [0x%llx]: already in listen state!",
1439 listen_sh, listen_vpp_handle);
1443 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1446 * Send listen request to vpp and wait for reply
1448 vcl_send_session_listen (wrk, listen_session);
1449 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1451 vcm->cfg.session_timeout);
1453 if (PREDICT_FALSE (rv))
1455 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1456 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1457 listen_sh, listen_session->vpp_handle, rv,
1458 vppcom_retval_str (rv));
1466 vppcom_session_tls_add_cert (uint32_t session_handle, char *cert,
1470 vcl_worker_t *wrk = vcl_worker_get_current ();
1471 vcl_session_t *session = 0;
1473 session = vcl_session_get_w_handle (wrk, session_handle);
1475 return VPPCOM_EBADFD;
1477 if (cert_len == 0 || cert_len == ~0)
1478 return VPPCOM_EBADFD;
1481 * Send listen request to vpp and wait for reply
1483 vppcom_send_application_tls_cert_add (session, cert, cert_len);
1484 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1485 vcl_wait_for_app_state_change (STATE_APP_READY);
1491 vppcom_session_tls_add_key (uint32_t session_handle, char *key,
1495 vcl_worker_t *wrk = vcl_worker_get_current ();
1496 vcl_session_t *session = 0;
1498 session = vcl_session_get_w_handle (wrk, session_handle);
1500 return VPPCOM_EBADFD;
1502 if (key_len == 0 || key_len == ~0)
1503 return VPPCOM_EBADFD;
1505 vppcom_send_application_tls_key_add (session, key, key_len);
1506 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1507 vcl_wait_for_app_state_change (STATE_APP_READY);
1512 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1516 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1518 return VPPCOM_EBADFD;
1521 if ((ls->session_state != STATE_LISTEN)
1522 && (!vcl_session_is_connectable_listener (wrk, ls)))
1525 "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1526 " (%s)", ls->vpp_handle, ls->session_state,
1527 vppcom_session_state_str (ls->session_state));
1528 return VPPCOM_EBADFD;
1534 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1536 if (!strcmp (proto_str, "TCP"))
1537 *proto = VPPCOM_PROTO_TCP;
1538 else if (!strcmp (proto_str, "tcp"))
1539 *proto = VPPCOM_PROTO_TCP;
1540 else if (!strcmp (proto_str, "UDP"))
1541 *proto = VPPCOM_PROTO_UDP;
1542 else if (!strcmp (proto_str, "udp"))
1543 *proto = VPPCOM_PROTO_UDP;
1544 else if (!strcmp (proto_str, "UDPC"))
1545 *proto = VPPCOM_PROTO_UDPC;
1546 else if (!strcmp (proto_str, "udpc"))
1547 *proto = VPPCOM_PROTO_UDPC;
1548 else if (!strcmp (proto_str, "TLS"))
1549 *proto = VPPCOM_PROTO_TLS;
1550 else if (!strcmp (proto_str, "tls"))
1551 *proto = VPPCOM_PROTO_TLS;
1552 else if (!strcmp (proto_str, "QUIC"))
1553 *proto = VPPCOM_PROTO_QUIC;
1554 else if (!strcmp (proto_str, "quic"))
1555 *proto = VPPCOM_PROTO_QUIC;
1562 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1565 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1566 vcl_worker_t *wrk = vcl_worker_get_current ();
1567 session_accepted_msg_t accepted_msg;
1568 vcl_session_t *listen_session = 0;
1569 vcl_session_t *client_session = 0;
1570 vcl_session_msg_t *evt;
1571 svm_msg_q_msg_t msg;
1576 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1577 if (!listen_session)
1578 return VPPCOM_EBADFD;
1580 listen_session_index = listen_session->session_index;
1581 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1584 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1586 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1587 accept_flags = evt->flags;
1588 accepted_msg = evt->accepted_msg;
1592 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1593 VCL_SESS_ATTR_NONBLOCK);
1596 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1597 return VPPCOM_EAGAIN;
1599 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1600 return VPPCOM_EAGAIN;
1602 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1603 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1605 vcl_handle_mq_event (wrk, e);
1606 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1609 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1610 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1616 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1617 listen_session_index);
1618 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1619 return VPPCOM_ECONNABORTED;
1621 listen_session = vcl_session_get (wrk, listen_session_index);
1622 client_session = vcl_session_get (wrk, client_session_index);
1624 if (flags & O_NONBLOCK)
1625 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1627 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1628 " flags %d, is_nonblocking %u", listen_session->session_index,
1629 listen_session->vpp_handle, client_session_index,
1630 client_session->vpp_handle, flags,
1631 VCL_SESS_ATTR_TEST (client_session->attr, VCL_SESS_ATTR_NONBLOCK));
1635 ep->is_ip4 = client_session->transport.is_ip4;
1636 ep->port = client_session->transport.rmt_port;
1637 if (client_session->transport.is_ip4)
1638 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1639 sizeof (ip4_address_t));
1641 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1642 sizeof (ip6_address_t));
1645 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1646 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1647 client_session_index, client_session->vpp_handle,
1648 format_ip46_address, &client_session->transport.rmt_ip,
1649 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1650 clib_net_to_host_u16 (client_session->transport.rmt_port),
1651 format_ip46_address, &client_session->transport.lcl_ip,
1652 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1653 clib_net_to_host_u16 (client_session->transport.lcl_port));
1654 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1655 client_session_index);
1658 * Session might have been closed already
1662 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1663 client_session->session_state = STATE_VPP_CLOSING;
1664 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1665 client_session->session_state = STATE_DISCONNECT;
1667 return vcl_session_handle (client_session);
1671 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1673 vcl_worker_t *wrk = vcl_worker_get_current ();
1674 vcl_session_t *session = 0;
1678 session = vcl_session_get_w_handle (wrk, session_handle);
1680 return VPPCOM_EBADFD;
1681 session_index = session->session_index;
1683 if (PREDICT_FALSE (session->is_vep))
1685 VDBG (0, "ERROR: cannot connect epoll session %u!",
1686 session->session_index);
1687 return VPPCOM_EBADFD;
1690 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1692 VDBG (0, "session handle %u [0x%llx]: session already "
1693 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1694 session_handle, session->vpp_handle,
1695 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1696 &session->transport.rmt_ip, session->transport.is_ip4 ?
1697 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1698 clib_net_to_host_u16 (session->transport.rmt_port),
1699 vppcom_proto_str (session->session_type), session->session_state,
1700 vppcom_session_state_str (session->session_state));
1704 /* Attempt to connect a connectionless listener */
1705 if (PREDICT_FALSE (session->session_state & STATE_LISTEN))
1707 if (session->session_type != VPPCOM_PROTO_UDP)
1708 return VPPCOM_EINVAL;
1709 vcl_send_session_unlisten (wrk, session);
1710 session->session_state = STATE_CLOSED;
1713 session->transport.is_ip4 = server_ep->is_ip4;
1714 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1715 session->transport.rmt_port = server_ep->port;
1716 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1717 session->flags |= VCL_SESSION_F_CONNECTED;
1719 VDBG (0, "session handle %u (%s): connecting to peer %s %U "
1720 "port %d proto %s", session_handle,
1721 vppcom_session_state_str (session->session_state),
1722 session->transport.is_ip4 ? "IPv4" : "IPv6",
1723 format_ip46_address,
1724 &session->transport.rmt_ip, session->transport.is_ip4 ?
1725 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1726 clib_net_to_host_u16 (session->transport.rmt_port),
1727 vppcom_proto_str (session->session_type));
1729 vcl_send_session_connect (wrk, session);
1731 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK))
1732 return VPPCOM_EINPROGRESS;
1735 * Wait for reply from vpp if blocking
1737 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1738 vcm->cfg.session_timeout);
1740 session = vcl_session_get (wrk, session_index);
1741 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1742 session->vpp_handle, rv ? "failed" : "succeeded");
1748 vppcom_session_stream_connect (uint32_t session_handle,
1749 uint32_t parent_session_handle)
1751 vcl_worker_t *wrk = vcl_worker_get_current ();
1752 vcl_session_t *session, *parent_session;
1753 u32 session_index, parent_session_index;
1756 session = vcl_session_get_w_handle (wrk, session_handle);
1758 return VPPCOM_EBADFD;
1759 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1760 if (!parent_session)
1761 return VPPCOM_EBADFD;
1763 session_index = session->session_index;
1764 parent_session_index = parent_session->session_index;
1765 if (PREDICT_FALSE (session->is_vep))
1767 VDBG (0, "ERROR: cannot connect epoll session %u!",
1768 session->session_index);
1769 return VPPCOM_EBADFD;
1772 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1774 VDBG (0, "session handle %u [0x%llx]: session already "
1775 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1776 session_handle, session->vpp_handle,
1777 parent_session_handle, parent_session->vpp_handle,
1778 vppcom_proto_str (session->session_type), session->session_state,
1779 vppcom_session_state_str (session->session_state));
1783 /* Connect to quic session specifics */
1784 session->transport.is_ip4 = parent_session->transport.is_ip4;
1785 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1786 session->transport.rmt_port = 0;
1787 session->parent_handle = parent_session->vpp_handle;
1789 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1790 session_handle, parent_session_handle, parent_session->vpp_handle);
1793 * Send connect request and wait for reply from vpp
1795 vcl_send_session_connect (wrk, session);
1796 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1797 vcm->cfg.session_timeout);
1799 session->listener_index = parent_session_index;
1800 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1802 parent_session->n_accepted_sessions++;
1804 session = vcl_session_get (wrk, session_index);
1805 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1806 session->vpp_handle, rv ? "failed" : "succeeded");
1812 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1814 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1818 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1821 vcl_worker_t *wrk = vcl_worker_get_current ();
1822 int n_read = 0, is_nonblocking;
1823 vcl_session_t *s = 0;
1824 svm_fifo_t *rx_fifo;
1825 svm_msg_q_msg_t msg;
1830 if (PREDICT_FALSE (!buf))
1831 return VPPCOM_EINVAL;
1833 s = vcl_session_get_w_handle (wrk, session_handle);
1834 if (PREDICT_FALSE (!s || s->is_vep))
1835 return VPPCOM_EBADFD;
1837 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1839 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1840 s->session_index, s->vpp_handle, s->session_state,
1841 vppcom_session_state_str (s->session_state));
1842 return vcl_session_closed_error (s);
1845 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1846 is_ct = vcl_session_is_ct (s);
1847 mq = wrk->app_event_queue;
1848 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1851 if (svm_fifo_is_empty_cons (rx_fifo))
1855 if (vcl_session_is_closing (s))
1856 return vcl_session_closing_error (s);
1857 svm_fifo_unset_event (s->rx_fifo);
1858 return VPPCOM_EWOULDBLOCK;
1860 while (svm_fifo_is_empty_cons (rx_fifo))
1862 if (vcl_session_is_closing (s))
1863 return vcl_session_closing_error (s);
1865 svm_fifo_unset_event (s->rx_fifo);
1866 svm_msg_q_lock (mq);
1867 if (svm_msg_q_is_empty (mq))
1868 svm_msg_q_wait (mq);
1870 svm_msg_q_sub_w_lock (mq, &msg);
1871 e = svm_msg_q_msg_data (mq, &msg);
1872 svm_msg_q_unlock (mq);
1873 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1874 vcl_handle_mq_event (wrk, e);
1875 svm_msg_q_free_msg (mq, &msg);
1880 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1882 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1884 if (svm_fifo_is_empty_cons (rx_fifo))
1885 svm_fifo_unset_event (s->rx_fifo);
1887 /* Cut-through sessions might request tx notifications on rx fifos */
1888 if (PREDICT_FALSE (rx_fifo->want_deq_ntf))
1890 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1891 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1892 svm_fifo_reset_has_deq_ntf (s->rx_fifo);
1895 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1896 s->vpp_handle, n_read, rx_fifo);
1902 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1904 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1908 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1910 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1914 vppcom_session_read_segments (uint32_t session_handle,
1915 vppcom_data_segments_t ds)
1917 vcl_worker_t *wrk = vcl_worker_get_current ();
1918 int n_read = 0, is_nonblocking;
1919 vcl_session_t *s = 0;
1920 svm_fifo_t *rx_fifo;
1921 svm_msg_q_msg_t msg;
1926 s = vcl_session_get_w_handle (wrk, session_handle);
1927 if (PREDICT_FALSE (!s || s->is_vep))
1928 return VPPCOM_EBADFD;
1930 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1931 return vcl_session_closed_error (s);
1933 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1934 is_ct = vcl_session_is_ct (s);
1935 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1936 rx_fifo = s->rx_fifo;
1940 svm_fifo_unset_event (s->rx_fifo);
1942 if (svm_fifo_is_empty_cons (rx_fifo))
1946 svm_fifo_unset_event (rx_fifo);
1947 return VPPCOM_EWOULDBLOCK;
1949 while (svm_fifo_is_empty_cons (rx_fifo))
1951 if (vcl_session_is_closing (s))
1952 return vcl_session_closing_error (s);
1954 svm_fifo_unset_event (rx_fifo);
1955 svm_msg_q_lock (mq);
1956 if (svm_msg_q_is_empty (mq))
1957 svm_msg_q_wait (mq);
1959 svm_msg_q_sub_w_lock (mq, &msg);
1960 e = svm_msg_q_msg_data (mq, &msg);
1961 svm_msg_q_unlock (mq);
1962 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1963 vcl_handle_mq_event (wrk, e);
1964 svm_msg_q_free_msg (mq, &msg);
1968 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_seg_t *) ds);
1969 svm_fifo_unset_event (rx_fifo);
1975 vppcom_session_free_segments (uint32_t session_handle,
1976 vppcom_data_segments_t ds)
1978 vcl_worker_t *wrk = vcl_worker_get_current ();
1981 s = vcl_session_get_w_handle (wrk, session_handle);
1982 if (PREDICT_FALSE (!s || s->is_vep))
1985 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_seg_t *) ds);
1989 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
1991 u32 first_copy = clib_min (ds[0].len, max_bytes);
1992 clib_memcpy_fast (buf, ds[0].data, first_copy);
1993 if (first_copy < max_bytes)
1995 clib_memcpy_fast (buf + first_copy, ds[1].data,
1996 clib_min (ds[1].len, max_bytes - first_copy));
2002 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
2004 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
2008 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2010 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2012 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2018 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2019 size_t n, u8 is_flush, u8 is_dgram)
2021 int n_write, is_nonblocking;
2022 session_evt_type_t et;
2023 svm_msg_q_msg_t msg;
2024 svm_fifo_t *tx_fifo;
2029 if (PREDICT_FALSE (!buf || n == 0))
2030 return VPPCOM_EINVAL;
2032 if (PREDICT_FALSE (s->is_vep))
2034 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2035 " session!", s->session_index, s->vpp_handle);
2036 return VPPCOM_EBADFD;
2039 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2041 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2042 s->session_index, s->vpp_handle, s->session_state,
2043 vppcom_session_state_str (s->session_state));
2044 return vcl_session_closed_error (s);;
2047 is_ct = vcl_session_is_ct (s);
2048 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2049 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
2051 mq = wrk->app_event_queue;
2052 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2056 return VPPCOM_EWOULDBLOCK;
2058 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2060 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2061 if (vcl_session_is_closing (s))
2062 return vcl_session_closing_error (s);
2063 svm_msg_q_lock (mq);
2064 if (svm_msg_q_is_empty (mq))
2065 svm_msg_q_wait (mq);
2067 svm_msg_q_sub_w_lock (mq, &msg);
2068 e = svm_msg_q_msg_data (mq, &msg);
2069 svm_msg_q_unlock (mq);
2071 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
2072 vcl_handle_mq_event (wrk, e);
2073 svm_msg_q_free_msg (mq, &msg);
2077 et = SESSION_IO_EVT_TX;
2078 if (is_flush && !is_ct)
2079 et = SESSION_IO_EVT_TX_FLUSH;
2082 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2083 s->vpp_evt_q, buf, n, et,
2084 0 /* do_evt */ , SVM_Q_WAIT);
2086 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2087 0 /* do_evt */ , SVM_Q_WAIT);
2089 if (svm_fifo_set_event (s->tx_fifo))
2090 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
2093 ASSERT (n_write > 0);
2095 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2096 s->vpp_handle, n_write);
2102 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2104 vcl_worker_t *wrk = vcl_worker_get_current ();
2107 s = vcl_session_get_w_handle (wrk, session_handle);
2108 if (PREDICT_FALSE (!s))
2109 return VPPCOM_EBADFD;
2111 return vppcom_session_write_inline (wrk, s, buf, n,
2112 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2116 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2118 vcl_worker_t *wrk = vcl_worker_get_current ();
2121 s = vcl_session_get_w_handle (wrk, session_handle);
2122 if (PREDICT_FALSE (!s))
2123 return VPPCOM_EBADFD;
2125 return vppcom_session_write_inline (wrk, s, buf, n,
2126 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2129 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2130 if (PREDICT_FALSE (!_s->rx_fifo)) \
2132 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2134 if (!vcl_session_is_ct (_s)) \
2136 svm_fifo_unset_event (_s->rx_fifo); \
2137 if (svm_fifo_is_empty (_s->rx_fifo)) \
2140 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2142 svm_fifo_unset_event (_s->ct_rx_fifo); \
2143 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2149 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2150 unsigned long n_bits, unsigned long *read_map,
2151 unsigned long *write_map,
2152 unsigned long *except_map, u32 * bits_set)
2154 session_disconnected_msg_t *disconnected_msg;
2155 session_connected_msg_t *connected_msg;
2156 vcl_session_t *session;
2159 switch (e->event_type)
2161 case SESSION_IO_EVT_RX:
2162 sid = e->session_index;
2163 session = vcl_session_get (wrk, sid);
2166 vcl_fifo_rx_evt_valid_or_break (session);
2167 if (sid < n_bits && read_map)
2169 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2173 case SESSION_IO_EVT_TX:
2174 sid = e->session_index;
2175 session = vcl_session_get (wrk, sid);
2178 if (sid < n_bits && write_map)
2180 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2184 case SESSION_CTRL_EVT_ACCEPTED:
2185 session = vcl_session_accepted (wrk,
2186 (session_accepted_msg_t *) e->data);
2189 sid = session->session_index;
2190 if (sid < n_bits && read_map)
2192 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2196 case SESSION_CTRL_EVT_CONNECTED:
2197 connected_msg = (session_connected_msg_t *) e->data;
2198 sid = vcl_session_connected_handler (wrk, connected_msg);
2199 if (sid == VCL_INVALID_SESSION_INDEX)
2201 if (sid < n_bits && write_map)
2203 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2207 case SESSION_CTRL_EVT_DISCONNECTED:
2208 disconnected_msg = (session_disconnected_msg_t *) e->data;
2209 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2212 sid = session->session_index;
2213 if (sid < n_bits && except_map)
2215 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2219 case SESSION_CTRL_EVT_RESET:
2220 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2221 if (sid < n_bits && except_map)
2223 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2227 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2228 vcl_session_unlisten_reply_handler (wrk, e->data);
2230 case SESSION_CTRL_EVT_MIGRATED:
2231 vcl_session_migrated_handler (wrk, e->data);
2233 case SESSION_CTRL_EVT_CLEANUP:
2234 vcl_session_cleanup_handler (wrk, e->data);
2236 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2237 vcl_session_worker_update_reply_handler (wrk, e->data);
2239 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2240 vcl_session_req_worker_update_handler (wrk, e->data);
2242 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2243 vcl_session_app_add_segment_handler (wrk, e->data);
2245 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2246 vcl_session_app_del_segment_handler (wrk, e->data);
2249 clib_warning ("unhandled: %u", e->event_type);
2255 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2256 unsigned long n_bits, unsigned long *read_map,
2257 unsigned long *write_map, unsigned long *except_map,
2258 double time_to_wait, u32 * bits_set)
2260 svm_msg_q_msg_t *msg;
2264 svm_msg_q_lock (mq);
2265 if (svm_msg_q_is_empty (mq))
2269 svm_msg_q_unlock (mq);
2275 svm_msg_q_unlock (mq);
2278 else if (time_to_wait < 0)
2280 svm_msg_q_wait (mq);
2284 if (svm_msg_q_timedwait (mq, time_to_wait))
2286 svm_msg_q_unlock (mq);
2291 vcl_mq_dequeue_batch (wrk, mq, ~0);
2292 svm_msg_q_unlock (mq);
2294 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2296 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2297 e = svm_msg_q_msg_data (mq, msg);
2298 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2299 except_map, bits_set);
2300 svm_msg_q_free_msg (mq, msg);
2302 vec_reset_length (wrk->mq_msg_vector);
2303 vcl_handle_pending_wrk_updates (wrk);
2308 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2309 vcl_si_set * read_map, vcl_si_set * write_map,
2310 vcl_si_set * except_map, double time_to_wait,
2313 double wait = 0, start = 0;
2317 wait = time_to_wait;
2318 start = clib_time_now (&wrk->clib_time);
2323 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2324 write_map, except_map, wait, bits_set);
2330 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2338 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2339 vcl_si_set * read_map, vcl_si_set * write_map,
2340 vcl_si_set * except_map, double time_to_wait,
2343 vcl_mq_evt_conn_t *mqc;
2344 int __clib_unused n_read;
2348 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2349 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2350 vec_len (wrk->mq_events), time_to_wait);
2351 for (i = 0; i < n_mq_evts; i++)
2353 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2354 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2355 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2356 except_map, 0, bits_set);
2359 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2363 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2364 vcl_si_set * except_map, double time_to_wait)
2366 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2367 vcl_worker_t *wrk = vcl_worker_get_current ();
2368 vcl_session_t *session = 0;
2371 if (n_bits && read_map)
2373 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2374 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2375 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2376 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2378 if (n_bits && write_map)
2380 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2381 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2382 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2383 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2385 if (n_bits && except_map)
2387 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2388 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2389 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2390 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2400 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2401 if (!(session = vcl_session_get (wrk, sid)))
2403 if (except_map && sid < minbits)
2404 clib_bitmap_set_no_check (except_map, sid, 1);
2408 rv = svm_fifo_is_full_prod (session->tx_fifo);
2411 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2415 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2422 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2423 if (!(session = vcl_session_get (wrk, sid)))
2425 if (except_map && sid < minbits)
2426 clib_bitmap_set_no_check (except_map, sid, 1);
2430 rv = vcl_session_read_ready (session);
2433 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2441 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2443 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2444 read_map, write_map, except_map, &bits_set);
2446 vec_reset_length (wrk->unhandled_evts_vector);
2448 if (vcm->cfg.use_mq_eventfd)
2449 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2450 time_to_wait, &bits_set);
2452 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2453 time_to_wait, &bits_set);
2459 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2461 vcl_session_t *session;
2462 vppcom_epoll_t *vep;
2463 u32 sh = vep_handle;
2465 if (VPPCOM_DEBUG <= 2)
2468 session = vcl_session_get_w_handle (wrk, vep_handle);
2469 if (PREDICT_FALSE (!session))
2471 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2474 if (PREDICT_FALSE (!session->is_vep))
2476 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2479 vep = &session->vep;
2480 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2483 " is_vep_session = %u\n"
2484 " next_sh = 0x%x (%u)\n"
2485 "}\n", vep_handle, session->is_vep, session->is_vep_session,
2486 vep->next_sh, vep->next_sh);
2488 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2490 session = vcl_session_get_w_handle (wrk, sh);
2491 if (PREDICT_FALSE (!session))
2493 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2496 if (PREDICT_FALSE (session->is_vep))
2498 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2500 else if (PREDICT_FALSE (!session->is_vep_session))
2502 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2505 vep = &session->vep;
2506 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2507 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2508 sh, session->vep.vep_sh, vep_handle);
2509 if (session->is_vep_session)
2511 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2513 " next_sh = 0x%x (%u)\n"
2514 " prev_sh = 0x%x (%u)\n"
2515 " vep_sh = 0x%x (%u)\n"
2516 " ev.events = 0x%x\n"
2517 " ev.data.u64 = 0x%llx\n"
2520 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2521 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2522 vep->ev.data.u64, vep->et_mask);
2527 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2531 vppcom_epoll_create (void)
2533 vcl_worker_t *wrk = vcl_worker_get_current ();
2534 vcl_session_t *vep_session;
2536 vep_session = vcl_session_alloc (wrk);
2538 vep_session->is_vep = 1;
2539 vep_session->vep.vep_sh = ~0;
2540 vep_session->vep.next_sh = ~0;
2541 vep_session->vep.prev_sh = ~0;
2542 vep_session->vpp_handle = ~0;
2544 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2545 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2547 return vcl_session_handle (vep_session);
2551 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2552 struct epoll_event *event)
2554 vcl_worker_t *wrk = vcl_worker_get_current ();
2555 vcl_session_t *vep_session;
2556 vcl_session_t *session;
2559 if (vep_handle == session_handle)
2561 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2562 return VPPCOM_EINVAL;
2565 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2566 if (PREDICT_FALSE (!vep_session))
2568 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2569 return VPPCOM_EBADFD;
2571 if (PREDICT_FALSE (!vep_session->is_vep))
2573 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2574 return VPPCOM_EINVAL;
2577 ASSERT (vep_session->vep.vep_sh == ~0);
2578 ASSERT (vep_session->vep.prev_sh == ~0);
2580 session = vcl_session_get_w_handle (wrk, session_handle);
2581 if (PREDICT_FALSE (!session))
2583 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2584 return VPPCOM_EBADFD;
2586 if (PREDICT_FALSE (session->is_vep))
2588 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2589 return VPPCOM_EINVAL;
2595 if (PREDICT_FALSE (!event))
2597 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2598 return VPPCOM_EINVAL;
2600 if (vep_session->vep.next_sh != ~0)
2602 vcl_session_t *next_session;
2603 next_session = vcl_session_get_w_handle (wrk,
2604 vep_session->vep.next_sh);
2605 if (PREDICT_FALSE (!next_session))
2607 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2608 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2609 return VPPCOM_EBADFD;
2611 ASSERT (next_session->vep.prev_sh == vep_handle);
2612 next_session->vep.prev_sh = session_handle;
2614 session->vep.next_sh = vep_session->vep.next_sh;
2615 session->vep.prev_sh = vep_handle;
2616 session->vep.vep_sh = vep_handle;
2617 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2618 session->vep.ev = *event;
2619 session->is_vep = 0;
2620 session->is_vep_session = 1;
2621 vep_session->vep.next_sh = session_handle;
2623 if (session->tx_fifo)
2624 svm_fifo_add_want_deq_ntf (session->tx_fifo,
2625 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2627 /* Generate EPOLLOUT if tx fifo not full */
2628 if ((event->events & EPOLLOUT) &&
2629 (vcl_session_write_ready (session) > 0))
2631 session_event_t e = { 0 };
2632 e.event_type = SESSION_IO_EVT_TX;
2633 e.session_index = session->session_index;
2634 vec_add1 (wrk->unhandled_evts_vector, e);
2636 /* Generate EPOLLIN if rx fifo has data */
2637 if ((event->events & EPOLLIN) && (vcl_session_read_ready (session) > 0))
2639 session_event_t e = { 0 };
2640 e.event_type = SESSION_IO_EVT_RX;
2641 e.session_index = session->session_index;
2642 vec_add1 (wrk->unhandled_evts_vector, e);
2644 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2645 vep_handle, session_handle, event->events, event->data.u64);
2646 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2650 if (PREDICT_FALSE (!event))
2652 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2656 else if (PREDICT_FALSE (!session->is_vep_session))
2658 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2662 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2664 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2665 session_handle, session->vep.vep_sh, vep_handle);
2670 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2671 if ((event->events & EPOLLOUT) &&
2672 !(session->vep.ev.events & EPOLLOUT) &&
2673 (vcl_session_write_ready (session) > 0))
2675 session_event_t e = { 0 };
2676 e.event_type = SESSION_IO_EVT_TX;
2677 e.session_index = session->session_index;
2678 vec_add1 (wrk->unhandled_evts_vector, e);
2680 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2681 session->vep.ev = *event;
2682 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2683 vep_handle, session_handle, event->events, event->data.u64);
2687 if (PREDICT_FALSE (!session->is_vep_session))
2689 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2693 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2695 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2696 session_handle, session->vep.vep_sh, vep_handle);
2701 if (session->vep.prev_sh == vep_handle)
2702 vep_session->vep.next_sh = session->vep.next_sh;
2705 vcl_session_t *prev_session;
2706 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2707 if (PREDICT_FALSE (!prev_session))
2709 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2710 session->vep.prev_sh, session_handle);
2711 return VPPCOM_EBADFD;
2713 ASSERT (prev_session->vep.next_sh == session_handle);
2714 prev_session->vep.next_sh = session->vep.next_sh;
2716 if (session->vep.next_sh != ~0)
2718 vcl_session_t *next_session;
2719 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2720 if (PREDICT_FALSE (!next_session))
2722 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2723 session->vep.next_sh, session_handle);
2724 return VPPCOM_EBADFD;
2726 ASSERT (next_session->vep.prev_sh == session_handle);
2727 next_session->vep.prev_sh = session->vep.prev_sh;
2730 memset (&session->vep, 0, sizeof (session->vep));
2731 session->vep.next_sh = ~0;
2732 session->vep.prev_sh = ~0;
2733 session->vep.vep_sh = ~0;
2734 session->is_vep_session = 0;
2736 if (session->tx_fifo)
2737 svm_fifo_del_want_deq_ntf (session->tx_fifo, SVM_FIFO_NO_DEQ_NOTIF);
2739 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2741 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2745 VDBG (0, "Invalid operation (%d)!", op);
2749 vep_verify_epoll_chain (wrk, vep_handle);
2756 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2757 struct epoll_event *events, u32 * num_ev)
2759 session_disconnected_msg_t *disconnected_msg;
2760 session_connected_msg_t *connected_msg;
2761 u32 sid = ~0, session_events;
2762 u64 session_evt_data = ~0;
2763 vcl_session_t *session;
2766 switch (e->event_type)
2768 case SESSION_IO_EVT_RX:
2769 sid = e->session_index;
2770 if (!(session = vcl_session_get (wrk, sid)))
2772 vcl_fifo_rx_evt_valid_or_break (session);
2773 session_events = session->vep.ev.events;
2774 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2777 events[*num_ev].events |= EPOLLIN;
2778 session_evt_data = session->vep.ev.data.u64;
2779 session->has_rx_evt = 1;
2781 case SESSION_IO_EVT_TX:
2782 sid = e->session_index;
2783 if (!(session = vcl_session_get (wrk, sid)))
2785 session_events = session->vep.ev.events;
2786 if (!(EPOLLOUT & session_events))
2789 events[*num_ev].events |= EPOLLOUT;
2790 session_evt_data = session->vep.ev.data.u64;
2791 svm_fifo_reset_has_deq_ntf (session->tx_fifo);
2793 case SESSION_CTRL_EVT_ACCEPTED:
2794 session = vcl_session_accepted (wrk,
2795 (session_accepted_msg_t *) e->data);
2799 session_events = session->vep.ev.events;
2800 if (!(EPOLLIN & session_events))
2804 events[*num_ev].events |= EPOLLIN;
2805 session_evt_data = session->vep.ev.data.u64;
2807 case SESSION_CTRL_EVT_CONNECTED:
2808 connected_msg = (session_connected_msg_t *) e->data;
2809 sid = vcl_session_connected_handler (wrk, connected_msg);
2810 /* Generate EPOLLOUT because there's no connected event */
2811 if (!(session = vcl_session_get (wrk, sid)))
2813 session_events = session->vep.ev.events;
2814 if (!(EPOLLOUT & session_events))
2817 events[*num_ev].events |= EPOLLOUT;
2818 session_evt_data = session->vep.ev.data.u64;
2819 if (session->session_state & STATE_DETACHED)
2820 events[*num_ev].events |= EPOLLHUP;
2822 case SESSION_CTRL_EVT_DISCONNECTED:
2823 disconnected_msg = (session_disconnected_msg_t *) e->data;
2824 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2827 session_events = session->vep.ev.events;
2829 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2830 session_evt_data = session->vep.ev.data.u64;
2832 case SESSION_CTRL_EVT_RESET:
2833 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2834 if (!(session = vcl_session_get (wrk, sid)))
2836 session_events = session->vep.ev.events;
2838 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2839 session_evt_data = session->vep.ev.data.u64;
2841 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2842 vcl_session_unlisten_reply_handler (wrk, e->data);
2844 case SESSION_CTRL_EVT_MIGRATED:
2845 vcl_session_migrated_handler (wrk, e->data);
2847 case SESSION_CTRL_EVT_CLEANUP:
2848 vcl_session_cleanup_handler (wrk, e->data);
2850 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2851 vcl_session_req_worker_update_handler (wrk, e->data);
2853 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2854 vcl_session_worker_update_reply_handler (wrk, e->data);
2856 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2857 vcl_session_app_add_segment_handler (wrk, e->data);
2859 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2860 vcl_session_app_del_segment_handler (wrk, e->data);
2863 VDBG (0, "unhandled: %u", e->event_type);
2869 events[*num_ev].data.u64 = session_evt_data;
2870 if (EPOLLONESHOT & session_events)
2872 session = vcl_session_get (wrk, sid);
2873 session->vep.ev.events = 0;
2880 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2881 struct epoll_event *events, u32 maxevents,
2882 double wait_for_time, u32 * num_ev)
2884 svm_msg_q_msg_t *msg;
2888 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2889 goto handle_dequeued;
2891 svm_msg_q_lock (mq);
2892 if (svm_msg_q_is_empty (mq))
2896 svm_msg_q_unlock (mq);
2899 else if (wait_for_time < 0)
2901 svm_msg_q_wait (mq);
2905 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2907 svm_msg_q_unlock (mq);
2912 ASSERT (maxevents > *num_ev);
2913 vcl_mq_dequeue_batch (wrk, mq, maxevents - *num_ev);
2914 svm_msg_q_unlock (mq);
2917 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2919 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2920 e = svm_msg_q_msg_data (mq, msg);
2921 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2922 svm_msg_q_free_msg (mq, msg);
2924 vec_reset_length (wrk->mq_msg_vector);
2925 vcl_handle_pending_wrk_updates (wrk);
2930 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2931 int maxevents, u32 n_evts, double wait_for_time)
2933 double wait = 0, start = 0, now;
2937 wait = wait_for_time;
2938 start = clib_time_now (&wrk->clib_time);
2943 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2950 now = clib_time_now (&wrk->clib_time);
2951 wait -= now - start;
2960 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2961 int maxevents, u32 n_evts, double wait_for_time)
2963 vcl_mq_evt_conn_t *mqc;
2964 int __clib_unused n_read;
2968 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2970 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2971 vec_len (wrk->mq_events), wait_for_time);
2972 for (i = 0; i < n_mq_evts; i++)
2974 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2975 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2976 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
2978 if (!n_evts && n_mq_evts > 0)
2981 return (int) n_evts;
2985 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
2986 int maxevents, double wait_for_time)
2988 vcl_worker_t *wrk = vcl_worker_get_current ();
2989 vcl_session_t *vep_session;
2993 if (PREDICT_FALSE (maxevents <= 0))
2995 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
2996 return VPPCOM_EINVAL;
2999 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3001 return VPPCOM_EBADFD;
3003 if (PREDICT_FALSE (!vep_session->is_vep))
3005 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3006 return VPPCOM_EINVAL;
3009 memset (events, 0, sizeof (*events) * maxevents);
3011 if (vec_len (wrk->unhandled_evts_vector))
3013 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3015 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3017 if (n_evts == maxevents)
3019 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3023 vec_reset_length (wrk->unhandled_evts_vector);
3026 if (vcm->cfg.use_mq_eventfd)
3027 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3030 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3035 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3036 void *buffer, uint32_t * buflen)
3038 vcl_worker_t *wrk = vcl_worker_get_current ();
3039 vcl_session_t *session;
3041 u32 *flags = buffer, tmp_flags = 0;
3042 vppcom_endpt_t *ep = buffer;
3044 session = vcl_session_get_w_handle (wrk, session_handle);
3046 return VPPCOM_EBADFD;
3050 case VPPCOM_ATTR_GET_NREAD:
3051 rv = vcl_session_read_ready (session);
3052 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3056 case VPPCOM_ATTR_GET_NWRITE:
3057 rv = vcl_session_write_ready (session);
3058 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3062 case VPPCOM_ATTR_GET_FLAGS:
3063 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3065 *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr,
3066 VCL_SESS_ATTR_NONBLOCK));
3067 *buflen = sizeof (*flags);
3068 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3069 "is_nonblocking = %u", session_handle, *flags,
3070 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3076 case VPPCOM_ATTR_SET_FLAGS:
3077 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3079 if (*flags & O_NONBLOCK)
3080 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
3082 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
3084 VDBG (2, "VPPCOM_ATTR_SET_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_GET_PEER_ADDR:
3093 if (PREDICT_TRUE (buffer && buflen &&
3094 (*buflen >= sizeof (*ep)) && ep->ip))
3096 ep->is_ip4 = session->transport.is_ip4;
3097 ep->port = session->transport.rmt_port;
3098 if (session->transport.is_ip4)
3099 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3100 sizeof (ip4_address_t));
3102 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3103 sizeof (ip6_address_t));
3104 *buflen = sizeof (*ep);
3105 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3106 "addr = %U, port %u", session_handle, ep->is_ip4,
3107 format_ip46_address, &session->transport.rmt_ip,
3108 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3109 clib_net_to_host_u16 (ep->port));
3115 case VPPCOM_ATTR_GET_LCL_ADDR:
3116 if (PREDICT_TRUE (buffer && buflen &&
3117 (*buflen >= sizeof (*ep)) && ep->ip))
3119 ep->is_ip4 = session->transport.is_ip4;
3120 ep->port = session->transport.lcl_port;
3121 if (session->transport.is_ip4)
3122 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3123 sizeof (ip4_address_t));
3125 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3126 sizeof (ip6_address_t));
3127 *buflen = sizeof (*ep);
3128 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3129 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3130 &session->transport.lcl_ip,
3131 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3132 clib_net_to_host_u16 (ep->port));
3138 case VPPCOM_ATTR_SET_LCL_ADDR:
3139 if (PREDICT_TRUE (buffer && buflen &&
3140 (*buflen >= sizeof (*ep)) && ep->ip))
3142 session->transport.is_ip4 = ep->is_ip4;
3143 session->transport.lcl_port = ep->port;
3144 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3145 *buflen = sizeof (*ep);
3146 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3147 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3148 &session->transport.lcl_ip,
3149 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3150 clib_net_to_host_u16 (ep->port));
3156 case VPPCOM_ATTR_GET_LIBC_EPFD:
3157 rv = session->libc_epfd;
3158 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3161 case VPPCOM_ATTR_SET_LIBC_EPFD:
3162 if (PREDICT_TRUE (buffer && buflen &&
3163 (*buflen == sizeof (session->libc_epfd))))
3165 session->libc_epfd = *(int *) buffer;
3166 *buflen = sizeof (session->libc_epfd);
3168 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3169 session->libc_epfd, *buflen);
3175 case VPPCOM_ATTR_GET_PROTOCOL:
3176 if (buffer && buflen && (*buflen >= sizeof (int)))
3178 *(int *) buffer = session->session_type;
3179 *buflen = sizeof (int);
3181 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3182 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3188 case VPPCOM_ATTR_GET_LISTEN:
3189 if (buffer && buflen && (*buflen >= sizeof (int)))
3191 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3192 VCL_SESS_ATTR_LISTEN);
3193 *buflen = sizeof (int);
3195 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3202 case VPPCOM_ATTR_GET_ERROR:
3203 if (buffer && buflen && (*buflen >= sizeof (int)))
3205 *(int *) buffer = 0;
3206 *buflen = sizeof (int);
3208 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3209 *(int *) buffer, *buflen);
3215 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3216 if (buffer && buflen && (*buflen >= sizeof (u32)))
3220 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3222 svm_fifo_size (session->tx_fifo) :
3223 vcm->cfg.tx_fifo_size);
3224 *buflen = sizeof (u32);
3226 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3227 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3234 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3235 if (buffer && buflen && (*buflen == sizeof (u32)))
3238 session->sndbuf_size = *(u32 *) buffer;
3239 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3240 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3247 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3248 if (buffer && buflen && (*buflen >= sizeof (u32)))
3252 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3254 svm_fifo_size (session->rx_fifo) :
3255 vcm->cfg.rx_fifo_size);
3256 *buflen = sizeof (u32);
3258 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3259 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3265 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3266 if (buffer && buflen && (*buflen == sizeof (u32)))
3269 session->rcvbuf_size = *(u32 *) buffer;
3270 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3271 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3278 case VPPCOM_ATTR_GET_REUSEADDR:
3279 if (buffer && buflen && (*buflen >= sizeof (int)))
3282 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3283 VCL_SESS_ATTR_REUSEADDR);
3284 *buflen = sizeof (int);
3286 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3287 *(int *) buffer, *buflen);
3293 case VPPCOM_ATTR_SET_REUSEADDR:
3294 if (buffer && buflen && (*buflen == sizeof (int)) &&
3295 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3298 if (*(int *) buffer)
3299 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
3301 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
3303 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3304 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEADDR),
3311 case VPPCOM_ATTR_GET_REUSEPORT:
3312 if (buffer && buflen && (*buflen >= sizeof (int)))
3315 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3316 VCL_SESS_ATTR_REUSEPORT);
3317 *buflen = sizeof (int);
3319 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3320 *(int *) buffer, *buflen);
3326 case VPPCOM_ATTR_SET_REUSEPORT:
3327 if (buffer && buflen && (*buflen == sizeof (int)) &&
3328 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3331 if (*(int *) buffer)
3332 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
3334 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
3336 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3337 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEPORT),
3344 case VPPCOM_ATTR_GET_BROADCAST:
3345 if (buffer && buflen && (*buflen >= sizeof (int)))
3348 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3349 VCL_SESS_ATTR_BROADCAST);
3350 *buflen = sizeof (int);
3352 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3353 *(int *) buffer, *buflen);
3359 case VPPCOM_ATTR_SET_BROADCAST:
3360 if (buffer && buflen && (*buflen == sizeof (int)))
3363 if (*(int *) buffer)
3364 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
3366 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
3368 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3369 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_BROADCAST),
3376 case VPPCOM_ATTR_GET_V6ONLY:
3377 if (buffer && buflen && (*buflen >= sizeof (int)))
3380 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3381 VCL_SESS_ATTR_V6ONLY);
3382 *buflen = sizeof (int);
3384 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3385 *(int *) buffer, *buflen);
3391 case VPPCOM_ATTR_SET_V6ONLY:
3392 if (buffer && buflen && (*buflen == sizeof (int)))
3395 if (*(int *) buffer)
3396 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
3398 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
3400 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3401 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_V6ONLY),
3408 case VPPCOM_ATTR_GET_KEEPALIVE:
3409 if (buffer && buflen && (*buflen >= sizeof (int)))
3412 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3413 VCL_SESS_ATTR_KEEPALIVE);
3414 *buflen = sizeof (int);
3416 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3417 *(int *) buffer, *buflen);
3423 case VPPCOM_ATTR_SET_KEEPALIVE:
3424 if (buffer && buflen && (*buflen == sizeof (int)))
3427 if (*(int *) buffer)
3428 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3430 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3432 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3433 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_KEEPALIVE),
3440 case VPPCOM_ATTR_GET_TCP_NODELAY:
3441 if (buffer && buflen && (*buflen >= sizeof (int)))
3444 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3445 VCL_SESS_ATTR_TCP_NODELAY);
3446 *buflen = sizeof (int);
3448 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3449 *(int *) buffer, *buflen);
3455 case VPPCOM_ATTR_SET_TCP_NODELAY:
3456 if (buffer && buflen && (*buflen == sizeof (int)))
3459 if (*(int *) buffer)
3460 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3462 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3464 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3465 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_NODELAY),
3472 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3473 if (buffer && buflen && (*buflen >= sizeof (int)))
3476 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3477 VCL_SESS_ATTR_TCP_KEEPIDLE);
3478 *buflen = sizeof (int);
3480 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3481 *(int *) buffer, *buflen);
3487 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3488 if (buffer && buflen && (*buflen == sizeof (int)))
3491 if (*(int *) buffer)
3492 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3494 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3496 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3497 VCL_SESS_ATTR_TEST (session->attr,
3498 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3504 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3505 if (buffer && buflen && (*buflen >= sizeof (int)))
3508 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3509 VCL_SESS_ATTR_TCP_KEEPINTVL);
3510 *buflen = sizeof (int);
3512 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3513 *(int *) buffer, *buflen);
3519 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3520 if (buffer && buflen && (*buflen == sizeof (int)))
3523 if (*(int *) buffer)
3524 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3526 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3528 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3529 VCL_SESS_ATTR_TEST (session->attr,
3530 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3536 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3537 if (buffer && buflen && (*buflen >= sizeof (u32)))
3540 *(u32 *) buffer = session->user_mss;
3541 *buflen = sizeof (int);
3543 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3544 *(int *) buffer, *buflen);
3550 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3551 if (buffer && buflen && (*buflen == sizeof (u32)))
3554 session->user_mss = *(u32 *) buffer;
3556 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3557 session->user_mss, *buflen);
3563 case VPPCOM_ATTR_SET_SHUT:
3564 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3565 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3566 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3567 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3570 case VPPCOM_ATTR_GET_SHUT:
3571 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3573 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3576 *(int *) buffer = SHUT_RD;
3577 else if (tmp_flags == 2)
3578 *(int *) buffer = SHUT_WR;
3579 else if (tmp_flags == 3)
3580 *(int *) buffer = SHUT_RDWR;
3581 *buflen = sizeof (int);
3592 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3593 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3595 vcl_worker_t *wrk = vcl_worker_get_current ();
3596 vcl_session_t *session;
3600 rv = vppcom_session_read (session_handle, buffer, buflen);
3601 else if (flags & MSG_PEEK)
3602 rv = vppcom_session_peek (session_handle, buffer, buflen);
3605 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3606 return VPPCOM_EAFNOSUPPORT;
3611 session = vcl_session_get_w_handle (wrk, session_handle);
3612 if (session->transport.is_ip4)
3613 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3614 sizeof (ip4_address_t));
3616 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3617 sizeof (ip6_address_t));
3618 ep->is_ip4 = session->transport.is_ip4;
3619 ep->port = session->transport.rmt_port;
3626 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3627 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3629 vcl_worker_t *wrk = vcl_worker_get_current ();
3632 s = vcl_session_get_w_handle (wrk, session_handle);
3634 return VPPCOM_EBADFD;
3637 return VPPCOM_EINVAL;
3641 if (s->session_type != VPPCOM_PROTO_UDP
3642 || (s->flags & VCL_SESSION_F_CONNECTED))
3643 return VPPCOM_EINVAL;
3645 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3646 if (PREDICT_FALSE (s->session_state == STATE_CLOSED))
3648 vcl_send_session_connect (wrk, s);
3652 s->transport.is_ip4 = ep->is_ip4;
3653 s->transport.rmt_port = ep->port;
3654 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3660 // TBD check the flags and do the right thing
3661 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3664 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3665 s->is_dgram ? 1 : 0));
3669 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3671 vcl_worker_t *wrk = vcl_worker_get_current ();
3672 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3673 u32 i, keep_trying = 1;
3674 svm_msg_q_msg_t msg;
3678 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3681 return VPPCOM_EFAULT;
3685 vcl_session_t *session;
3687 /* Dequeue all events and drop all unhandled io events */
3688 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3690 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3691 vcl_handle_mq_event (wrk, e);
3692 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3694 vec_reset_length (wrk->unhandled_evts_vector);
3696 for (i = 0; i < n_sids; i++)
3698 session = vcl_session_get (wrk, vp[i].sh);
3701 vp[i].revents = POLLHUP;
3708 if (POLLIN & vp[i].events)
3710 rv = vcl_session_read_ready (session);
3713 vp[i].revents |= POLLIN;
3720 case VPPCOM_ECONNRESET:
3721 vp[i].revents = POLLHUP;
3725 vp[i].revents = POLLERR;
3732 if (POLLOUT & vp[i].events)
3734 rv = vcl_session_write_ready (session);
3737 vp[i].revents |= POLLOUT;
3744 case VPPCOM_ECONNRESET:
3745 vp[i].revents = POLLHUP;
3749 vp[i].revents = POLLERR;
3756 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3758 vp[i].revents = POLLNVAL;
3762 if (wait_for_time != -1)
3763 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3765 while ((num_ev == 0) && keep_trying);
3771 vppcom_mq_epoll_fd (void)
3773 vcl_worker_t *wrk = vcl_worker_get_current ();
3774 return wrk->mqs_epfd;
3778 vppcom_session_index (vcl_session_handle_t session_handle)
3780 return session_handle & 0xFFFFFF;
3784 vppcom_session_worker (vcl_session_handle_t session_handle)
3786 return session_handle >> 24;
3790 vppcom_worker_register (void)
3796 if (!vcl_worker_alloc_and_init ())
3797 return VPPCOM_EEXIST;
3799 wrk = vcl_worker_get_current ();
3800 wrk_name = format (0, "%s-wrk-%u", vcm->app_name, wrk->wrk_index);
3802 rv = vppcom_connect_to_vpp ((char *) wrk_name);
3803 vec_free (wrk_name);
3806 return VPPCOM_EFAULT;
3808 if (vcl_worker_register_with_vpp ())
3809 return VPPCOM_EEXIST;
3815 vppcom_worker_unregister (void)
3817 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3818 vcl_set_worker_index (~0);
3822 vppcom_worker_index (void)
3824 return vcl_get_worker_index ();
3828 vppcom_worker_mqs_epfd (void)
3830 vcl_worker_t *wrk = vcl_worker_get_current ();
3831 if (!vcm->cfg.use_mq_eventfd)
3833 return wrk->mqs_epfd;
3837 vppcom_session_is_connectable_listener (uint32_t session_handle)
3839 vcl_session_t *session;
3840 vcl_worker_t *wrk = vcl_worker_get_current ();
3841 session = vcl_session_get_w_handle (wrk, session_handle);
3843 return VPPCOM_EBADFD;
3844 return vcl_session_is_connectable_listener (wrk, session);
3848 vppcom_session_listener (uint32_t session_handle)
3850 vcl_worker_t *wrk = vcl_worker_get_current ();
3851 vcl_session_t *listen_session, *session;
3852 session = vcl_session_get_w_handle (wrk, session_handle);
3854 return VPPCOM_EBADFD;
3855 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3856 return VPPCOM_EBADFD;
3857 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3858 if (!listen_session)
3859 return VPPCOM_EBADFD;
3860 return vcl_session_handle (listen_session);
3864 vppcom_session_n_accepted (uint32_t session_handle)
3866 vcl_worker_t *wrk = vcl_worker_get_current ();
3867 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3869 return VPPCOM_EBADFD;
3870 return session->n_accepted_sessions;
3874 * fd.io coding-style-patch-verification: ON
3877 * eval: (c-set-style "gnu")