2 * Copyright (c) 2017-2019 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
18 #include <vcl/vppcom.h>
19 #include <vcl/vcl_debug.h>
20 #include <vcl/vcl_private.h>
21 #include <svm/fifo_segment.h>
23 __thread uword __vcl_worker_index = ~0;
26 vcl_segment_is_not_mounted (vcl_worker_t * wrk, u64 segment_handle)
30 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
33 segment_index = vcl_segment_table_lookup (segment_handle);
34 if (segment_index != VCL_INVALID_SEGMENT_INDEX)
41 vcl_mq_dequeue_batch (vcl_worker_t * wrk, svm_msg_q_t * mq, u32 n_max_msg)
47 n_msgs = clib_min (svm_msg_q_size (mq), n_max_msg);
48 for (i = 0; i < n_msgs; i++)
50 vec_add2 (wrk->mq_msg_vector, msg, 1);
51 svm_msg_q_sub_w_lock (mq, msg);
57 vppcom_session_state_str (vcl_session_state_t state)
79 case STATE_VPP_CLOSING:
80 st = "STATE_VPP_CLOSING";
83 case STATE_DISCONNECT:
84 st = "STATE_DISCONNECT";
88 st = "STATE_DETACHED";
95 case STATE_LISTEN_NO_MQ:
96 st = "STATE_LISTEN_NO_MQ";
100 st = "UNKNOWN_STATE";
108 format_ip4_address (u8 * s, va_list * args)
110 u8 *a = va_arg (*args, u8 *);
111 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
115 format_ip6_address (u8 * s, va_list * args)
117 ip6_address_t *a = va_arg (*args, ip6_address_t *);
118 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
120 i_max_n_zero = ARRAY_LEN (a->as_u16);
122 i_first_zero = i_max_n_zero;
124 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
126 u32 is_zero = a->as_u16[i] == 0;
127 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
133 if ((!is_zero && n_zeros > max_n_zeros)
134 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
136 i_max_n_zero = i_first_zero;
137 max_n_zeros = n_zeros;
138 i_first_zero = ARRAY_LEN (a->as_u16);
143 last_double_colon = 0;
144 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
146 if (i == i_max_n_zero && max_n_zeros > 1)
148 s = format (s, "::");
149 i += max_n_zeros - 1;
150 last_double_colon = 1;
154 s = format (s, "%s%x",
155 (last_double_colon || i == 0) ? "" : ":",
156 clib_net_to_host_u16 (a->as_u16[i]));
157 last_double_colon = 0;
164 /* Format an IP46 address. */
166 format_ip46_address (u8 * s, va_list * args)
168 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
169 ip46_type_t type = va_arg (*args, ip46_type_t);
175 is_ip4 = ip46_address_is_ip4 (ip46);
186 format (s, "%U", format_ip4_address, &ip46->ip4) :
187 format (s, "%U", format_ip6_address, &ip46->ip6);
191 * VPPCOM Utility Functions
195 vcl_send_session_listen (vcl_worker_t * wrk, vcl_session_t * s)
197 app_session_evt_t _app_evt, *app_evt = &_app_evt;
198 session_listen_msg_t *mp;
201 mq = vcl_worker_ctrl_mq (wrk);
202 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_LISTEN);
203 mp = (session_listen_msg_t *) app_evt->evt->data;
204 memset (mp, 0, sizeof (*mp));
205 mp->client_index = wrk->my_client_index;
206 mp->context = s->session_index;
207 mp->wrk_index = wrk->vpp_wrk_index;
208 mp->is_ip4 = s->transport.is_ip4;
209 clib_memcpy_fast (&mp->ip, &s->transport.lcl_ip, sizeof (mp->ip));
210 mp->port = s->transport.lcl_port;
211 mp->proto = s->session_type;
212 app_send_ctrl_evt_to_vpp (mq, app_evt);
216 vcl_send_session_connect (vcl_worker_t * wrk, vcl_session_t * s)
218 app_session_evt_t _app_evt, *app_evt = &_app_evt;
219 session_connect_msg_t *mp;
222 mq = vcl_worker_ctrl_mq (wrk);
223 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_CONNECT);
224 mp = (session_connect_msg_t *) app_evt->evt->data;
225 memset (mp, 0, sizeof (*mp));
226 mp->client_index = wrk->my_client_index;
227 mp->context = s->session_index;
228 mp->wrk_index = wrk->vpp_wrk_index;
229 mp->is_ip4 = s->transport.is_ip4;
230 mp->parent_handle = s->parent_handle;
231 clib_memcpy_fast (&mp->ip, &s->transport.rmt_ip, sizeof (mp->ip));
232 clib_memcpy_fast (&mp->lcl_ip, &s->transport.lcl_ip, sizeof (mp->lcl_ip));
233 mp->port = s->transport.rmt_port;
234 mp->proto = s->session_type;
235 app_send_ctrl_evt_to_vpp (mq, app_evt);
239 vcl_send_session_unlisten (vcl_worker_t * wrk, vcl_session_t * s)
241 app_session_evt_t _app_evt, *app_evt = &_app_evt;
242 session_unlisten_msg_t *mp;
245 mq = vcl_worker_ctrl_mq (wrk);
246 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_UNLISTEN);
247 mp = (session_unlisten_msg_t *) app_evt->evt->data;
248 memset (mp, 0, sizeof (*mp));
249 mp->client_index = wrk->my_client_index;
250 mp->wrk_index = wrk->vpp_wrk_index;
251 mp->handle = s->vpp_handle;
252 mp->context = wrk->wrk_index;
253 app_send_ctrl_evt_to_vpp (mq, app_evt);
257 vcl_send_session_disconnect (vcl_worker_t * wrk, vcl_session_t * s)
259 app_session_evt_t _app_evt, *app_evt = &_app_evt;
260 session_disconnect_msg_t *mp;
263 /* Send to thread that owns the session */
265 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_DISCONNECT);
266 mp = (session_disconnect_msg_t *) app_evt->evt->data;
267 memset (mp, 0, sizeof (*mp));
268 mp->client_index = wrk->my_client_index;
269 mp->handle = s->vpp_handle;
270 app_send_ctrl_evt_to_vpp (mq, app_evt);
274 vcl_send_app_detach (vcl_worker_t * wrk)
276 app_session_evt_t _app_evt, *app_evt = &_app_evt;
277 session_app_detach_msg_t *mp;
280 mq = vcl_worker_ctrl_mq (wrk);
281 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_DETACH);
282 mp = (session_app_detach_msg_t *) app_evt->evt->data;
283 memset (mp, 0, sizeof (*mp));
284 mp->client_index = wrk->my_client_index;
285 app_send_ctrl_evt_to_vpp (mq, app_evt);
289 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
290 session_handle_t handle, int retval)
292 app_session_evt_t _app_evt, *app_evt = &_app_evt;
293 session_accepted_reply_msg_t *rmp;
294 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
295 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
296 rmp->handle = handle;
297 rmp->context = context;
298 rmp->retval = retval;
299 app_send_ctrl_evt_to_vpp (mq, app_evt);
303 vcl_send_session_disconnected_reply (svm_msg_q_t * mq, u32 context,
304 session_handle_t handle, int retval)
306 app_session_evt_t _app_evt, *app_evt = &_app_evt;
307 session_disconnected_reply_msg_t *rmp;
308 app_alloc_ctrl_evt_to_vpp (mq, app_evt,
309 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
310 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
311 rmp->handle = handle;
312 rmp->context = context;
313 rmp->retval = retval;
314 app_send_ctrl_evt_to_vpp (mq, app_evt);
318 vcl_send_session_reset_reply (svm_msg_q_t * mq, u32 context,
319 session_handle_t handle, int retval)
321 app_session_evt_t _app_evt, *app_evt = &_app_evt;
322 session_reset_reply_msg_t *rmp;
323 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_RESET_REPLY);
324 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
325 rmp->handle = handle;
326 rmp->context = context;
327 rmp->retval = retval;
328 app_send_ctrl_evt_to_vpp (mq, app_evt);
332 vcl_send_session_worker_update (vcl_worker_t * wrk, vcl_session_t * s,
335 app_session_evt_t _app_evt, *app_evt = &_app_evt;
336 session_worker_update_msg_t *mp;
339 mq = vcl_session_vpp_evt_q (wrk, s);
340 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_WORKER_UPDATE);
341 mp = (session_worker_update_msg_t *) app_evt->evt->data;
342 mp->client_index = wrk->my_client_index;
343 mp->handle = s->vpp_handle;
344 mp->req_wrk_index = wrk->vpp_wrk_index;
345 mp->wrk_index = wrk_index;
346 app_send_ctrl_evt_to_vpp (mq, app_evt);
350 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp,
353 vcl_session_t *session, *listen_session;
354 svm_fifo_t *rx_fifo, *tx_fifo;
358 session = vcl_session_alloc (wrk);
360 listen_session = vcl_session_get (wrk, ls_index);
361 if (listen_session->vpp_handle != mp->listener_handle)
363 VDBG (0, "ERROR: listener handle %lu does not match session %u",
364 mp->listener_handle, ls_index);
368 if (vcl_segment_is_not_mounted (wrk, mp->segment_handle))
370 VDBG (0, "ERROR: segment for session %u is not mounted!",
371 session->session_index);
375 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
376 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
377 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
379 rx_fifo->client_session_index = session->session_index;
380 tx_fifo->client_session_index = session->session_index;
381 rx_fifo->client_thread_index = vcl_get_worker_index ();
382 tx_fifo->client_thread_index = vcl_get_worker_index ();
383 vpp_wrk_index = tx_fifo->master_thread_index;
384 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
385 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
387 session->vpp_handle = mp->handle;
388 session->vpp_thread_index = rx_fifo->master_thread_index;
389 session->rx_fifo = rx_fifo;
390 session->tx_fifo = tx_fifo;
392 session->session_state = STATE_ACCEPT;
393 session->transport.rmt_port = mp->rmt.port;
394 session->transport.is_ip4 = mp->rmt.is_ip4;
395 clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
396 sizeof (ip46_address_t));
398 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
399 session->transport.lcl_port = listen_session->transport.lcl_port;
400 session->transport.lcl_ip = listen_session->transport.lcl_ip;
401 session->session_type = listen_session->session_type;
402 session->is_dgram = vcl_proto_is_dgram (session->session_type);
403 session->listener_index = listen_session->session_index;
404 listen_session->n_accepted_sessions++;
406 VDBG (1, "session %u [0x%llx]: client accept request from %s address %U"
407 " port %d queue %p!", session->session_index, mp->handle,
408 mp->rmt.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->rmt.ip,
409 mp->rmt.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
410 clib_net_to_host_u16 (mp->rmt.port), session->vpp_evt_q);
411 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
413 vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context,
414 session->vpp_handle, 0);
416 return session->session_index;
419 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
420 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
421 VNET_API_ERROR_INVALID_ARGUMENT);
422 vcl_session_free (wrk, session);
423 return VCL_INVALID_SESSION_INDEX;
427 vcl_session_connected_handler (vcl_worker_t * wrk,
428 session_connected_msg_t * mp)
430 u32 session_index, vpp_wrk_index;
431 svm_fifo_t *rx_fifo, *tx_fifo;
432 vcl_session_t *session = 0;
434 session_index = mp->context;
435 session = vcl_session_get (wrk, session_index);
438 VDBG (0, "ERROR: vpp handle 0x%llx has no session index (%u)!",
439 mp->handle, session_index);
440 return VCL_INVALID_SESSION_INDEX;
444 VDBG (0, "ERROR: session index %u: connect failed! %U",
445 session_index, format_api_error, ntohl (mp->retval));
446 session->session_state = STATE_DETACHED | STATE_DISCONNECT;
447 session->vpp_handle = mp->handle;
448 return session_index;
451 session->vpp_handle = mp->handle;
452 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
454 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
455 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
456 if (vcl_segment_is_not_mounted (wrk, mp->segment_handle))
458 VDBG (0, "segment for session %u is not mounted!",
459 session->session_index);
460 session->session_state = STATE_DETACHED | STATE_DISCONNECT;
461 vcl_send_session_disconnect (wrk, session);
462 return session_index;
465 rx_fifo->client_session_index = session_index;
466 tx_fifo->client_session_index = session_index;
467 rx_fifo->client_thread_index = vcl_get_worker_index ();
468 tx_fifo->client_thread_index = vcl_get_worker_index ();
470 vpp_wrk_index = tx_fifo->master_thread_index;
471 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
472 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
476 session->ct_rx_fifo = uword_to_pointer (mp->ct_rx_fifo, svm_fifo_t *);
477 session->ct_tx_fifo = uword_to_pointer (mp->ct_tx_fifo, svm_fifo_t *);
478 if (vcl_segment_is_not_mounted (wrk, mp->ct_segment_handle))
480 VDBG (0, "ct segment for session %u is not mounted!",
481 session->session_index);
482 session->session_state = STATE_DETACHED | STATE_DISCONNECT;
483 vcl_send_session_disconnect (wrk, session);
484 return session_index;
488 session->rx_fifo = rx_fifo;
489 session->tx_fifo = tx_fifo;
490 session->vpp_thread_index = rx_fifo->master_thread_index;
491 session->transport.is_ip4 = mp->lcl.is_ip4;
492 clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
493 sizeof (session->transport.lcl_ip));
494 session->transport.lcl_port = mp->lcl.port;
495 session->session_state = STATE_CONNECT;
497 /* Add it to lookup table */
498 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
500 VDBG (1, "session %u [0x%llx] connected! rx_fifo %p, refcnt %d, tx_fifo %p,"
501 " refcnt %d", session_index, mp->handle, session->rx_fifo,
502 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
504 return session_index;
508 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
510 vcl_session_msg_t *accepted_msg;
513 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
515 accepted_msg = &session->accept_evts_fifo[i];
516 if (accepted_msg->accepted_msg.handle == handle)
518 accepted_msg->flags |= flags;
526 vcl_session_reset_handler (vcl_worker_t * wrk,
527 session_reset_msg_t * reset_msg)
529 vcl_session_t *session;
532 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
533 session = vcl_session_get (wrk, sid);
536 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
537 return VCL_INVALID_SESSION_INDEX;
540 /* Caught a reset before actually accepting the session */
541 if (session->session_state == STATE_LISTEN)
544 if (!vcl_flag_accepted_session (session, reset_msg->handle,
545 VCL_ACCEPTED_F_RESET))
546 VDBG (0, "session was not accepted!");
547 return VCL_INVALID_SESSION_INDEX;
550 session->session_state = STATE_DISCONNECT;
551 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
556 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
558 vcl_session_t *session;
559 u32 sid = mp->context;
561 session = vcl_session_get (wrk, sid);
564 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
565 format_api_error, mp->retval);
568 session->session_state = STATE_DETACHED;
569 session->vpp_handle = mp->handle;
574 VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!",
576 return VCL_INVALID_SESSION_INDEX;
580 session->vpp_handle = mp->handle;
581 session->transport.is_ip4 = mp->lcl_is_ip4;
582 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
583 sizeof (ip46_address_t));
584 session->transport.lcl_port = mp->lcl_port;
585 vcl_session_table_add_listener (wrk, mp->handle, sid);
586 session->session_state = STATE_LISTEN;
588 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
589 vec_validate (wrk->vpp_event_queues, 0);
590 wrk->vpp_event_queues[0] = session->vpp_evt_q;
592 if (vcl_session_is_cl (session))
594 svm_fifo_t *rx_fifo, *tx_fifo;
595 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
596 rx_fifo = uword_to_pointer (mp->rx_fifo, svm_fifo_t *);
597 rx_fifo->client_session_index = sid;
598 tx_fifo = uword_to_pointer (mp->tx_fifo, svm_fifo_t *);
599 tx_fifo->client_session_index = sid;
600 session->rx_fifo = rx_fifo;
601 session->tx_fifo = tx_fifo;
604 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
609 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
611 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
614 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
615 if (!s || s->session_state != STATE_DISCONNECT)
617 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
622 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
623 s->session_index, mp->handle, format_api_error, ntohl (mp->retval));
625 if (mp->context != wrk->wrk_index)
626 VDBG (0, "wrong context");
628 vcl_session_table_del_vpp_handle (wrk, mp->handle);
629 vcl_session_free (wrk, s);
633 vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
635 session_migrated_msg_t *mp = (session_migrated_msg_t *) data;
638 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
641 VDBG (0, "Migrated notification with wrong handle %llx", mp->handle);
645 s->vpp_thread_index = mp->vpp_thread_index;
646 s->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
648 vec_validate (wrk->vpp_event_queues, s->vpp_thread_index);
649 wrk->vpp_event_queues[s->vpp_thread_index] = s->vpp_evt_q;
651 vcl_session_table_del_vpp_handle (wrk, mp->handle);
652 vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
654 /* Generate new tx event if we have outstanding data */
655 if (svm_fifo_has_event (s->tx_fifo))
656 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
657 SESSION_IO_EVT_TX, SVM_Q_WAIT);
659 VDBG (0, "Migrated 0x%x to thread %u", mp->handle, s->vpp_thread_index);
662 static vcl_session_t *
663 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
665 vcl_session_msg_t *vcl_msg;
666 vcl_session_t *session;
668 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
669 if (PREDICT_FALSE (session != 0))
670 VWRN ("session overlap handle %lu state %u!", msg->handle,
671 session->session_state);
673 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
676 VERR ("couldn't find listen session: listener handle %llx",
677 msg->listener_handle);
681 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
682 vcl_msg->accepted_msg = *msg;
683 /* Session handle points to listener until fully accepted by app */
684 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
689 static vcl_session_t *
690 vcl_session_disconnected_handler (vcl_worker_t * wrk,
691 session_disconnected_msg_t * msg)
693 vcl_session_t *session;
695 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
698 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
702 /* Late disconnect notification on a session that has been closed */
703 if (session->session_state == STATE_CLOSED)
706 /* Caught a disconnect before actually accepting the session */
707 if (session->session_state == STATE_LISTEN)
709 if (!vcl_flag_accepted_session (session, msg->handle,
710 VCL_ACCEPTED_F_CLOSED))
711 VDBG (0, "session was not accepted!");
715 /* If not already reset change state */
716 if (session->session_state != STATE_DISCONNECT)
717 session->session_state = STATE_VPP_CLOSING;
723 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
725 session_cleanup_msg_t *msg;
726 vcl_session_t *session;
728 msg = (session_cleanup_msg_t *) data;
729 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
732 VDBG (0, "disconnect confirmed for unknown handle 0x%llx", msg->handle);
736 vcl_session_table_del_vpp_handle (wrk, msg->handle);
737 /* Should not happen. App did not close the connection so don't free it. */
738 if (session->session_state != STATE_CLOSED)
740 VDBG (0, "app did not close session %d", session->session_index);
741 session->session_state = STATE_DETACHED;
742 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
745 vcl_session_free (wrk, session);
749 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
751 session_req_worker_update_msg_t *msg;
754 msg = (session_req_worker_update_msg_t *) data;
755 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
759 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
763 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
765 session_worker_update_reply_msg_t *msg;
768 msg = (session_worker_update_reply_msg_t *) data;
769 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
772 VDBG (0, "unknown handle 0x%llx", msg->handle);
775 if (vcl_segment_is_not_mounted (wrk, msg->segment_handle))
777 clib_warning ("segment for session %u is not mounted!",
784 s->rx_fifo = uword_to_pointer (msg->rx_fifo, svm_fifo_t *);
785 s->tx_fifo = uword_to_pointer (msg->tx_fifo, svm_fifo_t *);
786 s->rx_fifo->client_session_index = s->session_index;
787 s->tx_fifo->client_session_index = s->session_index;
788 s->rx_fifo->client_thread_index = wrk->wrk_index;
789 s->tx_fifo->client_thread_index = wrk->wrk_index;
791 s->session_state = STATE_UPDATED;
793 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
794 s->vpp_handle, wrk->wrk_index);
798 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
800 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
801 session_app_add_segment_msg_t *msg;
805 msg = (session_app_add_segment_msg_t *) data;
809 vl_socket_client_recv_fd_msg2 (&wrk->bapi_sock_ctx, &fd, 1, 5);
810 seg_type = SSVM_SEGMENT_MEMFD;
813 segment_handle = msg->segment_handle;
814 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
816 clib_warning ("invalid segment handle");
820 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
823 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
827 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
832 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
834 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
835 vcl_segment_detach (msg->segment_handle);
836 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
840 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
842 session_disconnected_msg_t *disconnected_msg;
843 vcl_session_t *session;
845 switch (e->event_type)
847 case SESSION_IO_EVT_RX:
848 case SESSION_IO_EVT_TX:
849 session = vcl_session_get (wrk, e->session_index);
850 if (!session || !(session->session_state & STATE_OPEN))
852 vec_add1 (wrk->unhandled_evts_vector, *e);
854 case SESSION_CTRL_EVT_ACCEPTED:
855 vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
857 case SESSION_CTRL_EVT_CONNECTED:
858 vcl_session_connected_handler (wrk,
859 (session_connected_msg_t *) e->data);
861 case SESSION_CTRL_EVT_DISCONNECTED:
862 disconnected_msg = (session_disconnected_msg_t *) e->data;
863 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
866 VDBG (0, "disconnected session %u [0x%llx]", session->session_index,
867 session->vpp_handle);
869 case SESSION_CTRL_EVT_RESET:
870 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
872 case SESSION_CTRL_EVT_BOUND:
873 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
875 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
876 vcl_session_unlisten_reply_handler (wrk, e->data);
878 case SESSION_CTRL_EVT_MIGRATED:
879 vcl_session_migrated_handler (wrk, e->data);
881 case SESSION_CTRL_EVT_CLEANUP:
882 vcl_session_cleanup_handler (wrk, e->data);
884 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
885 vcl_session_req_worker_update_handler (wrk, e->data);
887 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
888 vcl_session_worker_update_reply_handler (wrk, e->data);
890 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
891 vcl_session_app_add_segment_handler (wrk, e->data);
893 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
894 vcl_session_app_del_segment_handler (wrk, e->data);
897 clib_warning ("unhandled %u", e->event_type);
903 vppcom_wait_for_session_state_change (u32 session_index,
904 vcl_session_state_t state,
907 vcl_worker_t *wrk = vcl_worker_get_current ();
908 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
909 vcl_session_t *volatile session;
915 session = vcl_session_get (wrk, session_index);
916 if (PREDICT_FALSE (!session))
918 return VPPCOM_EBADFD;
920 if (session->session_state & state)
924 if (session->session_state & STATE_DETACHED)
926 return VPPCOM_ECONNREFUSED;
929 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
934 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
935 vcl_handle_mq_event (wrk, e);
936 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
938 while (clib_time_now (&wrk->clib_time) < timeout);
940 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
941 vppcom_session_state_str (state));
942 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
944 return VPPCOM_ETIMEDOUT;
948 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
950 vcl_session_state_t state;
954 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
957 vec_foreach (sip, wrk->pending_session_wrk_updates)
959 s = vcl_session_get (wrk, *sip);
960 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
961 state = s->session_state;
962 vppcom_wait_for_session_state_change (s->session_index, STATE_UPDATED, 5);
963 s->session_state = state;
965 vec_reset_length (wrk->pending_session_wrk_updates);
969 vcl_flush_mq_events (void)
971 vcl_worker_t *wrk = vcl_worker_get_current ();
972 svm_msg_q_msg_t *msg;
977 mq = wrk->app_event_queue;
979 vcl_mq_dequeue_batch (wrk, mq, ~0);
980 svm_msg_q_unlock (mq);
982 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
984 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
985 e = svm_msg_q_msg_data (mq, msg);
986 vcl_handle_mq_event (wrk, e);
987 svm_msg_q_free_msg (mq, msg);
989 vec_reset_length (wrk->mq_msg_vector);
990 vcl_handle_pending_wrk_updates (wrk);
994 vppcom_app_session_enable (void)
998 if (vcm->app_state != STATE_APP_ENABLED)
1000 vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
1001 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
1002 if (PREDICT_FALSE (rv))
1004 VDBG (0, "application session enable timed out! returning %d (%s)",
1005 rv, vppcom_retval_str (rv));
1013 vppcom_app_attach (void)
1017 vppcom_app_send_attach ();
1018 rv = vcl_wait_for_app_state_change (STATE_APP_ATTACHED);
1019 if (PREDICT_FALSE (rv))
1021 VDBG (0, "application attach timed out! returning %d (%s)", rv,
1022 vppcom_retval_str (rv));
1030 vppcom_session_unbind (u32 session_handle)
1032 vcl_worker_t *wrk = vcl_worker_get_current ();
1033 session_accepted_msg_t *accepted_msg;
1034 vcl_session_t *session = 0;
1035 vcl_session_msg_t *evt;
1037 session = vcl_session_get_w_handle (wrk, session_handle);
1039 return VPPCOM_EBADFD;
1041 /* Flush pending accept events, if any */
1042 while (clib_fifo_elts (session->accept_evts_fifo))
1044 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1045 accepted_msg = &evt->accepted_msg;
1046 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1047 vcl_send_session_accepted_reply (session->vpp_evt_q,
1048 accepted_msg->context,
1049 session->vpp_handle, -1);
1051 clib_fifo_free (session->accept_evts_fifo);
1053 vcl_send_session_unlisten (wrk, session);
1055 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1056 session->vpp_handle);
1057 vcl_evt (VCL_EVT_UNBIND, session);
1059 session->vpp_handle = ~0;
1060 session->session_state = STATE_DISCONNECT;
1066 vppcom_session_disconnect (u32 session_handle)
1068 vcl_worker_t *wrk = vcl_worker_get_current ();
1069 svm_msg_q_t *vpp_evt_q;
1070 vcl_session_t *session, *listen_session;
1071 vcl_session_state_t state;
1074 session = vcl_session_get_w_handle (wrk, session_handle);
1076 return VPPCOM_EBADFD;
1078 vpp_handle = session->vpp_handle;
1079 state = session->session_state;
1081 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
1082 vpp_handle, state, vppcom_session_state_str (state));
1084 if (PREDICT_FALSE (state & STATE_LISTEN))
1086 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
1087 return VPPCOM_EBADFD;
1090 if (state & STATE_VPP_CLOSING)
1092 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
1093 vcl_send_session_disconnected_reply (vpp_evt_q, wrk->my_client_index,
1095 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
1096 session->session_index, vpp_handle);
1100 VDBG (1, "session %u [0x%llx]: sending disconnect...",
1101 session->session_index, vpp_handle);
1102 vcl_send_session_disconnect (wrk, session);
1105 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
1107 listen_session = vcl_session_get (wrk, session->listener_index);
1108 listen_session->n_accepted_sessions--;
1117 * Notify vpp of the disconnect and mark the worker as free. If we're the
1118 * last worker, do a full cleanup otherwise, since we're probably a forked
1119 * child, avoid syscalls as much as possible. We might've lost privileges.
1122 vppcom_app_exit (void)
1124 if (!pool_elts (vcm->workers))
1126 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1127 vcl_set_worker_index (~0);
1128 vcl_elog_stop (vcm);
1132 * VPPCOM Public API functions
1135 vppcom_app_create (char *app_name)
1137 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1142 VDBG (1, "already initialized");
1143 return VPPCOM_EEXIST;
1147 vppcom_cfg (&vcm->cfg);
1148 vcl_cfg = &vcm->cfg;
1150 vcm->main_cpu = pthread_self ();
1151 vcm->main_pid = getpid ();
1152 vcm->app_name = format (0, "%s", app_name);
1153 vppcom_init_error_string_table ();
1154 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1155 20 /* timeout in secs */ );
1156 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1157 clib_spinlock_init (&vcm->workers_lock);
1158 clib_rwlock_init (&vcm->segment_table_lock);
1159 atexit (vppcom_app_exit);
1161 /* Allocate default worker */
1162 vcl_worker_alloc_and_init ();
1164 /* API hookup and connect to VPP */
1165 vcl_elog_init (vcm);
1166 vcm->app_state = STATE_APP_START;
1167 rv = vppcom_connect_to_vpp (app_name);
1170 VERR ("couldn't connect to VPP!");
1173 VDBG (0, "sending session enable");
1174 rv = vppcom_app_session_enable ();
1177 VERR ("vppcom_app_session_enable() failed!");
1181 VDBG (0, "sending app attach");
1182 rv = vppcom_app_attach ();
1185 VERR ("vppcom_app_attach() failed!");
1189 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1190 vcm->workers[0].my_client_index, vcm->workers[0].my_client_index);
1196 vppcom_app_destroy (void)
1199 f64 orig_app_timeout;
1201 if (!pool_elts (vcm->workers))
1204 vcl_evt (VCL_EVT_DETACH, vcm);
1206 if (pool_elts (vcm->workers) == 1)
1208 vcl_send_app_detach (vcl_worker_get_current ());
1209 orig_app_timeout = vcm->cfg.app_timeout;
1210 vcm->cfg.app_timeout = 2.0;
1211 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
1212 vcm->cfg.app_timeout = orig_app_timeout;
1213 if (PREDICT_FALSE (rv))
1214 VDBG (0, "application detach timed out! returning %d (%s)", rv,
1215 vppcom_retval_str (rv));
1216 vec_free (vcm->app_name);
1217 vcl_worker_cleanup (vcl_worker_get_current (), 0 /* notify vpp */ );
1221 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1224 vcl_set_worker_index (~0);
1225 vcl_elog_stop (vcm);
1226 vl_client_disconnect_from_vlib ();
1230 vppcom_session_create (u8 proto, u8 is_nonblocking)
1232 vcl_worker_t *wrk = vcl_worker_get_current ();
1233 vcl_session_t *session;
1235 session = vcl_session_alloc (wrk);
1237 session->session_type = proto;
1238 session->session_state = STATE_CLOSED;
1239 session->vpp_handle = ~0;
1240 session->is_dgram = vcl_proto_is_dgram (proto);
1243 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
1245 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1246 is_nonblocking, session_index);
1248 VDBG (0, "created session %u", session->session_index);
1250 return vcl_session_handle (session);
1254 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * session,
1255 vcl_session_handle_t sh, u8 do_disconnect)
1257 vcl_session_state_t state;
1258 u32 next_sh, vep_sh;
1263 is_vep = session->is_vep;
1264 next_sh = session->vep.next_sh;
1265 vep_sh = session->vep.vep_sh;
1266 state = session->session_state;
1267 vpp_handle = session->vpp_handle;
1269 VDBG (1, "session %u [0x%llx] closing", session->session_index, vpp_handle);
1273 while (next_sh != ~0)
1275 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1276 if (PREDICT_FALSE (rv < 0))
1277 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1278 " failed! rv %d (%s)", vpp_handle, next_sh, vep_sh, rv,
1279 vppcom_retval_str (rv));
1281 next_sh = session->vep.next_sh;
1286 if (session->is_vep_session)
1288 rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, sh, 0);
1290 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1291 "failed! rv %d (%s)", session->session_index, vpp_handle,
1292 vep_sh, rv, vppcom_retval_str (rv));
1297 VDBG (1, "session %u [0x%llx] disconnect skipped",
1298 session->session_index, vpp_handle);
1302 if (state & STATE_LISTEN)
1304 rv = vppcom_session_unbind (sh);
1305 if (PREDICT_FALSE (rv < 0))
1306 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1307 "rv %d (%s)", session->session_index, vpp_handle, rv,
1308 vppcom_retval_str (rv));
1311 else if ((state & STATE_OPEN)
1312 || (vcl_session_is_connectable_listener (wrk, session)))
1314 rv = vppcom_session_disconnect (sh);
1315 if (PREDICT_FALSE (rv < 0))
1316 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1317 " rv %d (%s)", session->session_index, vpp_handle,
1318 rv, vppcom_retval_str (rv));
1320 else if (state == STATE_DISCONNECT)
1322 svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, session);
1323 vcl_send_session_reset_reply (mq, wrk->my_client_index,
1324 session->vpp_handle, 0);
1326 else if (state == STATE_DETACHED)
1328 /* Should not happen. VPP cleaned up before app confirmed close */
1329 VDBG (0, "vpp freed session %d before close", session->session_index);
1333 session->session_state = STATE_CLOSED;
1335 /* Session is removed only after vpp confirms the disconnect */
1339 vcl_session_table_del_vpp_handle (wrk, vpp_handle);
1341 vcl_session_free (wrk, session);
1342 vcl_evt (VCL_EVT_CLOSE, session, rv);
1348 vppcom_session_close (uint32_t session_handle)
1350 vcl_worker_t *wrk = vcl_worker_get_current ();
1351 vcl_session_t *session;
1353 session = vcl_session_get_w_handle (wrk, session_handle);
1355 return VPPCOM_EBADFD;
1356 return vcl_session_cleanup (wrk, session, session_handle,
1357 1 /* do_disconnect */ );
1361 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1363 vcl_worker_t *wrk = vcl_worker_get_current ();
1364 vcl_session_t *session = 0;
1367 return VPPCOM_EINVAL;
1369 session = vcl_session_get_w_handle (wrk, session_handle);
1371 return VPPCOM_EBADFD;
1373 if (session->is_vep)
1375 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1376 session->session_index);
1377 return VPPCOM_EBADFD;
1380 session->transport.is_ip4 = ep->is_ip4;
1382 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1383 sizeof (ip4_address_t));
1385 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1386 sizeof (ip6_address_t));
1387 session->transport.lcl_port = ep->port;
1389 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1390 "proto %s", session->session_index, session_handle,
1391 session->transport.is_ip4 ? "IPv4" : "IPv6",
1392 format_ip46_address, &session->transport.lcl_ip,
1393 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1394 clib_net_to_host_u16 (session->transport.lcl_port),
1395 vppcom_proto_str (session->session_type));
1396 vcl_evt (VCL_EVT_BIND, session);
1398 if (session->session_type == VPPCOM_PROTO_UDP)
1399 vppcom_session_listen (session_handle, 10);
1405 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1407 vcl_worker_t *wrk = vcl_worker_get_current ();
1408 vcl_session_t *listen_session = 0;
1409 u64 listen_vpp_handle;
1412 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1413 if (!listen_session || listen_session->is_vep)
1414 return VPPCOM_EBADFD;
1416 if (q_len == 0 || q_len == ~0)
1417 q_len = vcm->cfg.listen_queue_size;
1419 listen_vpp_handle = listen_session->vpp_handle;
1420 if (listen_session->session_state & STATE_LISTEN)
1422 VDBG (0, "session %u [0x%llx]: already in listen state!",
1423 listen_sh, listen_vpp_handle);
1427 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1430 * Send listen request to vpp and wait for reply
1432 vcl_send_session_listen (wrk, listen_session);
1433 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1435 vcm->cfg.session_timeout);
1437 if (PREDICT_FALSE (rv))
1439 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1440 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1441 listen_sh, listen_session->vpp_handle, rv,
1442 vppcom_retval_str (rv));
1450 vppcom_session_tls_add_cert (uint32_t session_handle, char *cert,
1454 vcl_worker_t *wrk = vcl_worker_get_current ();
1455 vcl_session_t *session = 0;
1457 session = vcl_session_get_w_handle (wrk, session_handle);
1459 return VPPCOM_EBADFD;
1461 if (cert_len == 0 || cert_len == ~0)
1462 return VPPCOM_EBADFD;
1465 * Send listen request to vpp and wait for reply
1467 vppcom_send_application_tls_cert_add (session, cert, cert_len);
1468 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1469 vcl_wait_for_app_state_change (STATE_APP_READY);
1475 vppcom_session_tls_add_key (uint32_t session_handle, char *key,
1479 vcl_worker_t *wrk = vcl_worker_get_current ();
1480 vcl_session_t *session = 0;
1482 session = vcl_session_get_w_handle (wrk, session_handle);
1484 return VPPCOM_EBADFD;
1486 if (key_len == 0 || key_len == ~0)
1487 return VPPCOM_EBADFD;
1489 vppcom_send_application_tls_key_add (session, key, key_len);
1490 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1491 vcl_wait_for_app_state_change (STATE_APP_READY);
1496 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1500 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1502 return VPPCOM_EBADFD;
1505 if ((ls->session_state != STATE_LISTEN)
1506 && (!vcl_session_is_connectable_listener (wrk, ls)))
1509 "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1510 " (%s)", ls->vpp_handle, ls->session_state,
1511 vppcom_session_state_str (ls->session_state));
1512 return VPPCOM_EBADFD;
1518 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1520 if (!strcmp (proto_str, "TCP"))
1521 *proto = VPPCOM_PROTO_TCP;
1522 else if (!strcmp (proto_str, "tcp"))
1523 *proto = VPPCOM_PROTO_TCP;
1524 else if (!strcmp (proto_str, "UDP"))
1525 *proto = VPPCOM_PROTO_UDP;
1526 else if (!strcmp (proto_str, "udp"))
1527 *proto = VPPCOM_PROTO_UDP;
1528 else if (!strcmp (proto_str, "UDPC"))
1529 *proto = VPPCOM_PROTO_UDPC;
1530 else if (!strcmp (proto_str, "udpc"))
1531 *proto = VPPCOM_PROTO_UDPC;
1532 else if (!strcmp (proto_str, "SCTP"))
1533 *proto = VPPCOM_PROTO_SCTP;
1534 else if (!strcmp (proto_str, "sctp"))
1535 *proto = VPPCOM_PROTO_SCTP;
1536 else if (!strcmp (proto_str, "TLS"))
1537 *proto = VPPCOM_PROTO_TLS;
1538 else if (!strcmp (proto_str, "tls"))
1539 *proto = VPPCOM_PROTO_TLS;
1540 else if (!strcmp (proto_str, "QUIC"))
1541 *proto = VPPCOM_PROTO_QUIC;
1542 else if (!strcmp (proto_str, "quic"))
1543 *proto = VPPCOM_PROTO_QUIC;
1550 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1553 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1554 vcl_worker_t *wrk = vcl_worker_get_current ();
1555 session_accepted_msg_t accepted_msg;
1556 vcl_session_t *listen_session = 0;
1557 vcl_session_t *client_session = 0;
1558 vcl_session_msg_t *evt;
1559 svm_msg_q_msg_t msg;
1564 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1565 if (!listen_session)
1566 return VPPCOM_EBADFD;
1568 listen_session_index = listen_session->session_index;
1569 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1572 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1574 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1575 accept_flags = evt->flags;
1576 accepted_msg = evt->accepted_msg;
1580 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1581 VCL_SESS_ATTR_NONBLOCK);
1584 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1585 return VPPCOM_EAGAIN;
1587 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1588 return VPPCOM_EAGAIN;
1590 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1591 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1593 vcl_handle_mq_event (wrk, e);
1594 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1597 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1598 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1604 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1605 listen_session_index);
1606 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1607 return VPPCOM_ECONNABORTED;
1609 listen_session = vcl_session_get (wrk, listen_session_index);
1610 client_session = vcl_session_get (wrk, client_session_index);
1612 if (flags & O_NONBLOCK)
1613 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1615 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1616 " flags %d, is_nonblocking %u", listen_session->session_index,
1617 listen_session->vpp_handle, client_session_index,
1618 client_session->vpp_handle, flags,
1619 VCL_SESS_ATTR_TEST (client_session->attr, VCL_SESS_ATTR_NONBLOCK));
1623 ep->is_ip4 = client_session->transport.is_ip4;
1624 ep->port = client_session->transport.rmt_port;
1625 if (client_session->transport.is_ip4)
1626 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1627 sizeof (ip4_address_t));
1629 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1630 sizeof (ip6_address_t));
1633 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1634 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1635 client_session_index, client_session->vpp_handle,
1636 format_ip46_address, &client_session->transport.rmt_ip,
1637 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1638 clib_net_to_host_u16 (client_session->transport.rmt_port),
1639 format_ip46_address, &client_session->transport.lcl_ip,
1640 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1641 clib_net_to_host_u16 (client_session->transport.lcl_port));
1642 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1643 client_session_index);
1646 * Session might have been closed already
1650 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1651 client_session->session_state = STATE_VPP_CLOSING;
1652 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1653 client_session->session_state = STATE_DISCONNECT;
1655 return vcl_session_handle (client_session);
1659 vcl_ip_copy_from_ep (ip46_address_t * ip, vppcom_endpt_t * ep)
1662 clib_memcpy_fast (&ip->ip4, ep->ip, sizeof (ip4_address_t));
1664 clib_memcpy_fast (&ip->ip6, ep->ip, sizeof (ip6_address_t));
1668 vcl_ip_copy_to_ep (ip46_address_t * ip, vppcom_endpt_t * ep, u8 is_ip4)
1670 ep->is_ip4 = is_ip4;
1672 clib_memcpy_fast (ep->ip, &ip->ip4, sizeof (ip4_address_t));
1674 clib_memcpy_fast (ep->ip, &ip->ip6, sizeof (ip6_address_t));
1678 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1680 vcl_worker_t *wrk = vcl_worker_get_current ();
1681 vcl_session_t *session = 0;
1685 session = vcl_session_get_w_handle (wrk, session_handle);
1687 return VPPCOM_EBADFD;
1688 session_index = session->session_index;
1690 if (PREDICT_FALSE (session->is_vep))
1692 VDBG (0, "ERROR: cannot connect epoll session %u!",
1693 session->session_index);
1694 return VPPCOM_EBADFD;
1697 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1699 VDBG (0, "session handle %u [0x%llx]: session already "
1700 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1701 session_handle, session->vpp_handle,
1702 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1703 &session->transport.rmt_ip, session->transport.is_ip4 ?
1704 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1705 clib_net_to_host_u16 (session->transport.rmt_port),
1706 vppcom_proto_str (session->session_type), session->session_state,
1707 vppcom_session_state_str (session->session_state));
1711 session->transport.is_ip4 = server_ep->is_ip4;
1712 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1713 session->transport.rmt_port = server_ep->port;
1714 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1716 VDBG (0, "session handle %u: connecting to server %s %U "
1717 "port %d proto %s", session_handle,
1718 session->transport.is_ip4 ? "IPv4" : "IPv6",
1719 format_ip46_address,
1720 &session->transport.rmt_ip, session->transport.is_ip4 ?
1721 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1722 clib_net_to_host_u16 (session->transport.rmt_port),
1723 vppcom_proto_str (session->session_type));
1725 vcl_send_session_connect (wrk, session);
1727 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK))
1728 return VPPCOM_EINPROGRESS;
1731 * Wait for reply from vpp if blocking
1733 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1734 vcm->cfg.session_timeout);
1736 session = vcl_session_get (wrk, session_index);
1737 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1738 session->vpp_handle, rv ? "failed" : "succeeded");
1744 vppcom_session_stream_connect (uint32_t session_handle,
1745 uint32_t parent_session_handle)
1747 vcl_worker_t *wrk = vcl_worker_get_current ();
1748 vcl_session_t *session, *parent_session;
1749 u32 session_index, parent_session_index;
1752 session = vcl_session_get_w_handle (wrk, session_handle);
1754 return VPPCOM_EBADFD;
1755 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1756 if (!parent_session)
1757 return VPPCOM_EBADFD;
1759 session_index = session->session_index;
1760 parent_session_index = parent_session->session_index;
1761 if (PREDICT_FALSE (session->is_vep))
1763 VDBG (0, "ERROR: cannot connect epoll session %u!",
1764 session->session_index);
1765 return VPPCOM_EBADFD;
1768 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1770 VDBG (0, "session handle %u [0x%llx]: session already "
1771 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1772 session_handle, session->vpp_handle,
1773 parent_session_handle, parent_session->vpp_handle,
1774 vppcom_proto_str (session->session_type), session->session_state,
1775 vppcom_session_state_str (session->session_state));
1779 /* Connect to quic session specifics */
1780 session->transport.is_ip4 = parent_session->transport.is_ip4;
1781 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1782 session->transport.rmt_port = 0;
1783 session->parent_handle = parent_session->vpp_handle;
1785 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1786 session_handle, parent_session_handle, parent_session->vpp_handle);
1789 * Send connect request and wait for reply from vpp
1791 vcl_send_session_connect (wrk, session);
1792 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1793 vcm->cfg.session_timeout);
1795 session->listener_index = parent_session_index;
1796 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1798 parent_session->n_accepted_sessions++;
1800 session = vcl_session_get (wrk, session_index);
1801 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1802 session->vpp_handle, rv ? "failed" : "succeeded");
1808 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1810 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1814 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1817 vcl_worker_t *wrk = vcl_worker_get_current ();
1818 int n_read = 0, is_nonblocking;
1819 vcl_session_t *s = 0;
1820 svm_fifo_t *rx_fifo;
1821 svm_msg_q_msg_t msg;
1826 if (PREDICT_FALSE (!buf))
1827 return VPPCOM_EINVAL;
1829 s = vcl_session_get_w_handle (wrk, session_handle);
1830 if (PREDICT_FALSE (!s || s->is_vep))
1831 return VPPCOM_EBADFD;
1833 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1835 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1836 s->session_index, s->vpp_handle, s->session_state,
1837 vppcom_session_state_str (s->session_state));
1838 return vcl_session_closed_error (s);
1841 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1842 is_ct = vcl_session_is_ct (s);
1843 mq = wrk->app_event_queue;
1844 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1847 if (svm_fifo_is_empty_cons (rx_fifo))
1851 if (vcl_session_is_closing (s))
1852 return vcl_session_closing_error (s);
1853 svm_fifo_unset_event (s->rx_fifo);
1854 return VPPCOM_EWOULDBLOCK;
1856 while (svm_fifo_is_empty_cons (rx_fifo))
1858 if (vcl_session_is_closing (s))
1859 return vcl_session_closing_error (s);
1861 svm_fifo_unset_event (s->rx_fifo);
1862 svm_msg_q_lock (mq);
1863 if (svm_msg_q_is_empty (mq))
1864 svm_msg_q_wait (mq);
1866 svm_msg_q_sub_w_lock (mq, &msg);
1867 e = svm_msg_q_msg_data (mq, &msg);
1868 svm_msg_q_unlock (mq);
1869 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1870 vcl_handle_mq_event (wrk, e);
1871 svm_msg_q_free_msg (mq, &msg);
1876 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1878 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1880 if (svm_fifo_is_empty_cons (rx_fifo))
1881 svm_fifo_unset_event (s->rx_fifo);
1883 /* Cut-through sessions might request tx notifications on rx fifos */
1884 if (PREDICT_FALSE (rx_fifo->want_deq_ntf))
1886 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1887 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1888 svm_fifo_reset_has_deq_ntf (s->rx_fifo);
1891 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1892 s->vpp_handle, n_read, rx_fifo);
1898 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1900 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1904 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1906 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1910 vppcom_session_read_segments (uint32_t session_handle,
1911 vppcom_data_segments_t ds)
1913 vcl_worker_t *wrk = vcl_worker_get_current ();
1914 int n_read = 0, is_nonblocking;
1915 vcl_session_t *s = 0;
1916 svm_fifo_t *rx_fifo;
1917 svm_msg_q_msg_t msg;
1922 s = vcl_session_get_w_handle (wrk, session_handle);
1923 if (PREDICT_FALSE (!s || s->is_vep))
1924 return VPPCOM_EBADFD;
1926 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1927 return vcl_session_closed_error (s);
1929 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1930 is_ct = vcl_session_is_ct (s);
1931 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1932 rx_fifo = s->rx_fifo;
1936 svm_fifo_unset_event (s->rx_fifo);
1938 if (svm_fifo_is_empty_cons (rx_fifo))
1942 svm_fifo_unset_event (rx_fifo);
1943 return VPPCOM_EWOULDBLOCK;
1945 while (svm_fifo_is_empty_cons (rx_fifo))
1947 if (vcl_session_is_closing (s))
1948 return vcl_session_closing_error (s);
1950 svm_fifo_unset_event (rx_fifo);
1951 svm_msg_q_lock (mq);
1952 if (svm_msg_q_is_empty (mq))
1953 svm_msg_q_wait (mq);
1955 svm_msg_q_sub_w_lock (mq, &msg);
1956 e = svm_msg_q_msg_data (mq, &msg);
1957 svm_msg_q_unlock (mq);
1958 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1959 vcl_handle_mq_event (wrk, e);
1960 svm_msg_q_free_msg (mq, &msg);
1964 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_seg_t *) ds);
1965 svm_fifo_unset_event (rx_fifo);
1971 vppcom_session_free_segments (uint32_t session_handle,
1972 vppcom_data_segments_t ds)
1974 vcl_worker_t *wrk = vcl_worker_get_current ();
1977 s = vcl_session_get_w_handle (wrk, session_handle);
1978 if (PREDICT_FALSE (!s || s->is_vep))
1981 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_seg_t *) ds);
1985 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
1987 u32 first_copy = clib_min (ds[0].len, max_bytes);
1988 clib_memcpy_fast (buf, ds[0].data, first_copy);
1989 if (first_copy < max_bytes)
1991 clib_memcpy_fast (buf + first_copy, ds[1].data,
1992 clib_min (ds[1].len, max_bytes - first_copy));
1998 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
2000 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
2004 vppcom_session_write_inline (uint32_t session_handle, void *buf, size_t n,
2007 vcl_worker_t *wrk = vcl_worker_get_current ();
2008 int n_write, is_nonblocking;
2009 vcl_session_t *s = 0;
2010 session_evt_type_t et;
2011 svm_msg_q_msg_t msg;
2012 svm_fifo_t *tx_fifo;
2017 if (PREDICT_FALSE (!buf || n == 0))
2018 return VPPCOM_EINVAL;
2020 s = vcl_session_get_w_handle (wrk, session_handle);
2021 if (PREDICT_FALSE (!s))
2022 return VPPCOM_EBADFD;
2024 if (PREDICT_FALSE (s->is_vep))
2026 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2027 " session!", s->session_index, s->vpp_handle);
2028 return VPPCOM_EBADFD;
2031 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2033 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2034 s->session_index, s->vpp_handle, s->session_state,
2035 vppcom_session_state_str (s->session_state));
2036 return vcl_session_closed_error (s);;
2039 is_ct = vcl_session_is_ct (s);
2040 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2041 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
2043 mq = wrk->app_event_queue;
2044 if (svm_fifo_is_full_prod (tx_fifo))
2048 return VPPCOM_EWOULDBLOCK;
2050 while (svm_fifo_is_full_prod (tx_fifo))
2052 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2053 if (vcl_session_is_closing (s))
2054 return vcl_session_closing_error (s);
2055 svm_msg_q_lock (mq);
2056 if (svm_msg_q_is_empty (mq))
2057 svm_msg_q_wait (mq);
2059 svm_msg_q_sub_w_lock (mq, &msg);
2060 e = svm_msg_q_msg_data (mq, &msg);
2061 svm_msg_q_unlock (mq);
2063 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
2064 vcl_handle_mq_event (wrk, e);
2065 svm_msg_q_free_msg (mq, &msg);
2069 et = SESSION_IO_EVT_TX;
2070 if (is_flush && !is_ct)
2071 et = SESSION_IO_EVT_TX_FLUSH;
2074 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2075 s->vpp_evt_q, buf, n, et,
2076 0 /* do_evt */ , SVM_Q_WAIT);
2078 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2079 0 /* do_evt */ , SVM_Q_WAIT);
2081 if (svm_fifo_set_event (s->tx_fifo))
2082 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
2085 ASSERT (n_write > 0);
2087 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2088 s->vpp_handle, n_write);
2094 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2096 return vppcom_session_write_inline (session_handle, buf, n,
2101 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2103 return vppcom_session_write_inline (session_handle, buf, n,
2107 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2108 if (PREDICT_FALSE (!_s->rx_fifo)) \
2110 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2112 if (!vcl_session_is_ct (_s)) \
2114 svm_fifo_unset_event (_s->rx_fifo); \
2115 if (svm_fifo_is_empty (_s->rx_fifo)) \
2118 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2120 svm_fifo_unset_event (_s->ct_rx_fifo); \
2121 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2127 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2128 unsigned long n_bits, unsigned long *read_map,
2129 unsigned long *write_map,
2130 unsigned long *except_map, u32 * bits_set)
2132 session_disconnected_msg_t *disconnected_msg;
2133 session_connected_msg_t *connected_msg;
2134 vcl_session_t *session;
2137 switch (e->event_type)
2139 case SESSION_IO_EVT_RX:
2140 sid = e->session_index;
2141 session = vcl_session_get (wrk, sid);
2144 vcl_fifo_rx_evt_valid_or_break (session);
2145 if (sid < n_bits && read_map)
2147 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2151 case SESSION_IO_EVT_TX:
2152 sid = e->session_index;
2153 session = vcl_session_get (wrk, sid);
2156 if (sid < n_bits && write_map)
2158 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2162 case SESSION_CTRL_EVT_ACCEPTED:
2163 session = vcl_session_accepted (wrk,
2164 (session_accepted_msg_t *) e->data);
2167 sid = session->session_index;
2168 if (sid < n_bits && read_map)
2170 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2174 case SESSION_CTRL_EVT_CONNECTED:
2175 connected_msg = (session_connected_msg_t *) e->data;
2176 sid = vcl_session_connected_handler (wrk, connected_msg);
2177 if (sid == VCL_INVALID_SESSION_INDEX)
2179 if (sid < n_bits && write_map)
2181 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2185 case SESSION_CTRL_EVT_DISCONNECTED:
2186 disconnected_msg = (session_disconnected_msg_t *) e->data;
2187 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2190 sid = session->session_index;
2191 if (sid < n_bits && except_map)
2193 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2197 case SESSION_CTRL_EVT_RESET:
2198 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2199 if (sid < n_bits && except_map)
2201 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2205 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2206 vcl_session_unlisten_reply_handler (wrk, e->data);
2208 case SESSION_CTRL_EVT_MIGRATED:
2209 vcl_session_migrated_handler (wrk, e->data);
2211 case SESSION_CTRL_EVT_CLEANUP:
2212 vcl_session_cleanup_handler (wrk, e->data);
2214 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2215 vcl_session_worker_update_reply_handler (wrk, e->data);
2217 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2218 vcl_session_req_worker_update_handler (wrk, e->data);
2220 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2221 vcl_session_app_add_segment_handler (wrk, e->data);
2223 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2224 vcl_session_app_del_segment_handler (wrk, e->data);
2227 clib_warning ("unhandled: %u", e->event_type);
2233 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2234 unsigned long n_bits, unsigned long *read_map,
2235 unsigned long *write_map, unsigned long *except_map,
2236 double time_to_wait, u32 * bits_set)
2238 svm_msg_q_msg_t *msg;
2242 svm_msg_q_lock (mq);
2243 if (svm_msg_q_is_empty (mq))
2247 svm_msg_q_unlock (mq);
2253 svm_msg_q_unlock (mq);
2256 else if (time_to_wait < 0)
2258 svm_msg_q_wait (mq);
2262 if (svm_msg_q_timedwait (mq, time_to_wait))
2264 svm_msg_q_unlock (mq);
2269 vcl_mq_dequeue_batch (wrk, mq, ~0);
2270 svm_msg_q_unlock (mq);
2272 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2274 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2275 e = svm_msg_q_msg_data (mq, msg);
2276 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2277 except_map, bits_set);
2278 svm_msg_q_free_msg (mq, msg);
2280 vec_reset_length (wrk->mq_msg_vector);
2281 vcl_handle_pending_wrk_updates (wrk);
2286 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2287 vcl_si_set * read_map, vcl_si_set * write_map,
2288 vcl_si_set * except_map, double time_to_wait,
2291 double wait = 0, start = 0;
2295 wait = time_to_wait;
2296 start = clib_time_now (&wrk->clib_time);
2301 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2302 write_map, except_map, wait, bits_set);
2308 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2316 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2317 vcl_si_set * read_map, vcl_si_set * write_map,
2318 vcl_si_set * except_map, double time_to_wait,
2321 vcl_mq_evt_conn_t *mqc;
2322 int __clib_unused n_read;
2326 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2327 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2328 vec_len (wrk->mq_events), time_to_wait);
2329 for (i = 0; i < n_mq_evts; i++)
2331 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2332 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2333 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2334 except_map, 0, bits_set);
2337 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2341 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2342 vcl_si_set * except_map, double time_to_wait)
2344 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2345 vcl_worker_t *wrk = vcl_worker_get_current ();
2346 vcl_session_t *session = 0;
2349 if (n_bits && read_map)
2351 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2352 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2353 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2354 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2356 if (n_bits && write_map)
2358 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2359 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2360 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2361 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2363 if (n_bits && except_map)
2365 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2366 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2367 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2368 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2378 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2379 if (!(session = vcl_session_get (wrk, sid)))
2381 if (except_map && sid < minbits)
2382 clib_bitmap_set_no_check (except_map, sid, 1);
2386 rv = svm_fifo_is_full_prod (session->tx_fifo);
2389 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2393 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2400 clib_bitmap_foreach (sid, wrk->rd_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 = vcl_session_read_ready (session);
2411 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2419 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2421 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2422 read_map, write_map, except_map, &bits_set);
2424 vec_reset_length (wrk->unhandled_evts_vector);
2426 if (vcm->cfg.use_mq_eventfd)
2427 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2428 time_to_wait, &bits_set);
2430 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2431 time_to_wait, &bits_set);
2437 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2439 vcl_session_t *session;
2440 vppcom_epoll_t *vep;
2441 u32 sh = vep_handle;
2443 if (VPPCOM_DEBUG <= 2)
2446 session = vcl_session_get_w_handle (wrk, vep_handle);
2447 if (PREDICT_FALSE (!session))
2449 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2452 if (PREDICT_FALSE (!session->is_vep))
2454 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2457 vep = &session->vep;
2458 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2461 " is_vep_session = %u\n"
2462 " next_sh = 0x%x (%u)\n"
2463 "}\n", vep_handle, session->is_vep, session->is_vep_session,
2464 vep->next_sh, vep->next_sh);
2466 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2468 session = vcl_session_get_w_handle (wrk, sh);
2469 if (PREDICT_FALSE (!session))
2471 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2474 if (PREDICT_FALSE (session->is_vep))
2476 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2478 else if (PREDICT_FALSE (!session->is_vep_session))
2480 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2483 vep = &session->vep;
2484 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2485 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2486 sh, session->vep.vep_sh, vep_handle);
2487 if (session->is_vep_session)
2489 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2491 " next_sh = 0x%x (%u)\n"
2492 " prev_sh = 0x%x (%u)\n"
2493 " vep_sh = 0x%x (%u)\n"
2494 " ev.events = 0x%x\n"
2495 " ev.data.u64 = 0x%llx\n"
2498 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2499 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2500 vep->ev.data.u64, vep->et_mask);
2505 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2509 vppcom_epoll_create (void)
2511 vcl_worker_t *wrk = vcl_worker_get_current ();
2512 vcl_session_t *vep_session;
2514 vep_session = vcl_session_alloc (wrk);
2516 vep_session->is_vep = 1;
2517 vep_session->vep.vep_sh = ~0;
2518 vep_session->vep.next_sh = ~0;
2519 vep_session->vep.prev_sh = ~0;
2520 vep_session->vpp_handle = ~0;
2522 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2523 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2525 return vcl_session_handle (vep_session);
2529 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2530 struct epoll_event *event)
2532 vcl_worker_t *wrk = vcl_worker_get_current ();
2533 vcl_session_t *vep_session;
2534 vcl_session_t *session;
2537 if (vep_handle == session_handle)
2539 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2540 return VPPCOM_EINVAL;
2543 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2544 if (PREDICT_FALSE (!vep_session))
2546 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2547 return VPPCOM_EBADFD;
2549 if (PREDICT_FALSE (!vep_session->is_vep))
2551 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2552 return VPPCOM_EINVAL;
2555 ASSERT (vep_session->vep.vep_sh == ~0);
2556 ASSERT (vep_session->vep.prev_sh == ~0);
2558 session = vcl_session_get_w_handle (wrk, session_handle);
2559 if (PREDICT_FALSE (!session))
2561 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2562 return VPPCOM_EBADFD;
2564 if (PREDICT_FALSE (session->is_vep))
2566 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2567 return VPPCOM_EINVAL;
2573 if (PREDICT_FALSE (!event))
2575 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2576 return VPPCOM_EINVAL;
2578 if (vep_session->vep.next_sh != ~0)
2580 vcl_session_t *next_session;
2581 next_session = vcl_session_get_w_handle (wrk,
2582 vep_session->vep.next_sh);
2583 if (PREDICT_FALSE (!next_session))
2585 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2586 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2587 return VPPCOM_EBADFD;
2589 ASSERT (next_session->vep.prev_sh == vep_handle);
2590 next_session->vep.prev_sh = session_handle;
2592 session->vep.next_sh = vep_session->vep.next_sh;
2593 session->vep.prev_sh = vep_handle;
2594 session->vep.vep_sh = vep_handle;
2595 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2596 session->vep.ev = *event;
2597 session->is_vep = 0;
2598 session->is_vep_session = 1;
2599 vep_session->vep.next_sh = session_handle;
2601 if (session->tx_fifo)
2602 svm_fifo_add_want_deq_ntf (session->tx_fifo,
2603 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2605 /* Generate EPOLLOUT if tx fifo not full */
2606 if ((event->events & EPOLLOUT) &&
2607 (vcl_session_write_ready (session) > 0))
2609 session_event_t e = { 0 };
2610 e.event_type = SESSION_IO_EVT_TX;
2611 e.session_index = session->session_index;
2612 vec_add1 (wrk->unhandled_evts_vector, e);
2614 /* Generate EPOLLIN if rx fifo has data */
2615 if ((event->events & EPOLLIN) && (vcl_session_read_ready (session) > 0))
2617 session_event_t e = { 0 };
2618 e.event_type = SESSION_IO_EVT_RX;
2619 e.session_index = session->session_index;
2620 vec_add1 (wrk->unhandled_evts_vector, e);
2622 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2623 vep_handle, session_handle, event->events, event->data.u64);
2624 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2628 if (PREDICT_FALSE (!event))
2630 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2634 else if (PREDICT_FALSE (!session->is_vep_session))
2636 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2640 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2642 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2643 session_handle, session->vep.vep_sh, vep_handle);
2648 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2649 if ((event->events & EPOLLOUT) &&
2650 !(session->vep.ev.events & EPOLLOUT) &&
2651 (vcl_session_write_ready (session) > 0))
2653 session_event_t e = { 0 };
2654 e.event_type = SESSION_IO_EVT_TX;
2655 e.session_index = session->session_index;
2656 vec_add1 (wrk->unhandled_evts_vector, e);
2658 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2659 session->vep.ev = *event;
2660 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2661 vep_handle, session_handle, event->events, event->data.u64);
2665 if (PREDICT_FALSE (!session->is_vep_session))
2667 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2671 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2673 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2674 session_handle, session->vep.vep_sh, vep_handle);
2679 if (session->vep.prev_sh == vep_handle)
2680 vep_session->vep.next_sh = session->vep.next_sh;
2683 vcl_session_t *prev_session;
2684 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2685 if (PREDICT_FALSE (!prev_session))
2687 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2688 session->vep.prev_sh, session_handle);
2689 return VPPCOM_EBADFD;
2691 ASSERT (prev_session->vep.next_sh == session_handle);
2692 prev_session->vep.next_sh = session->vep.next_sh;
2694 if (session->vep.next_sh != ~0)
2696 vcl_session_t *next_session;
2697 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2698 if (PREDICT_FALSE (!next_session))
2700 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2701 session->vep.next_sh, session_handle);
2702 return VPPCOM_EBADFD;
2704 ASSERT (next_session->vep.prev_sh == session_handle);
2705 next_session->vep.prev_sh = session->vep.prev_sh;
2708 memset (&session->vep, 0, sizeof (session->vep));
2709 session->vep.next_sh = ~0;
2710 session->vep.prev_sh = ~0;
2711 session->vep.vep_sh = ~0;
2712 session->is_vep_session = 0;
2714 if (session->tx_fifo)
2715 svm_fifo_del_want_deq_ntf (session->tx_fifo, SVM_FIFO_NO_DEQ_NOTIF);
2717 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2719 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2723 VDBG (0, "Invalid operation (%d)!", op);
2727 vep_verify_epoll_chain (wrk, vep_handle);
2734 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2735 struct epoll_event *events, u32 * num_ev)
2737 session_disconnected_msg_t *disconnected_msg;
2738 session_connected_msg_t *connected_msg;
2739 u32 sid = ~0, session_events;
2740 u64 session_evt_data = ~0;
2741 vcl_session_t *session;
2744 switch (e->event_type)
2746 case SESSION_IO_EVT_RX:
2747 sid = e->session_index;
2748 if (!(session = vcl_session_get (wrk, sid)))
2750 vcl_fifo_rx_evt_valid_or_break (session);
2751 session_events = session->vep.ev.events;
2752 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2755 events[*num_ev].events |= EPOLLIN;
2756 session_evt_data = session->vep.ev.data.u64;
2757 session->has_rx_evt = 1;
2759 case SESSION_IO_EVT_TX:
2760 sid = e->session_index;
2761 if (!(session = vcl_session_get (wrk, sid)))
2763 session_events = session->vep.ev.events;
2764 if (!(EPOLLOUT & session_events))
2767 events[*num_ev].events |= EPOLLOUT;
2768 session_evt_data = session->vep.ev.data.u64;
2769 svm_fifo_reset_has_deq_ntf (session->tx_fifo);
2771 case SESSION_CTRL_EVT_ACCEPTED:
2772 session = vcl_session_accepted (wrk,
2773 (session_accepted_msg_t *) e->data);
2777 session_events = session->vep.ev.events;
2778 if (!(EPOLLIN & session_events))
2782 events[*num_ev].events |= EPOLLIN;
2783 session_evt_data = session->vep.ev.data.u64;
2785 case SESSION_CTRL_EVT_CONNECTED:
2786 connected_msg = (session_connected_msg_t *) e->data;
2787 sid = vcl_session_connected_handler (wrk, connected_msg);
2788 /* Generate EPOLLOUT because there's no connected event */
2789 if (!(session = vcl_session_get (wrk, sid)))
2791 session_events = session->vep.ev.events;
2792 if (!(EPOLLOUT & session_events))
2795 events[*num_ev].events |= EPOLLOUT;
2796 session_evt_data = session->vep.ev.data.u64;
2797 if (session->session_state & STATE_DETACHED)
2798 events[*num_ev].events |= EPOLLHUP;
2800 case SESSION_CTRL_EVT_DISCONNECTED:
2801 disconnected_msg = (session_disconnected_msg_t *) e->data;
2802 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2805 session_events = session->vep.ev.events;
2807 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2808 session_evt_data = session->vep.ev.data.u64;
2810 case SESSION_CTRL_EVT_RESET:
2811 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2812 if (!(session = vcl_session_get (wrk, sid)))
2814 session_events = session->vep.ev.events;
2816 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2817 session_evt_data = session->vep.ev.data.u64;
2819 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2820 vcl_session_unlisten_reply_handler (wrk, e->data);
2822 case SESSION_CTRL_EVT_MIGRATED:
2823 vcl_session_migrated_handler (wrk, e->data);
2825 case SESSION_CTRL_EVT_CLEANUP:
2826 vcl_session_cleanup_handler (wrk, e->data);
2828 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2829 vcl_session_req_worker_update_handler (wrk, e->data);
2831 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2832 vcl_session_worker_update_reply_handler (wrk, e->data);
2834 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2835 vcl_session_app_add_segment_handler (wrk, e->data);
2837 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2838 vcl_session_app_del_segment_handler (wrk, e->data);
2841 VDBG (0, "unhandled: %u", e->event_type);
2847 events[*num_ev].data.u64 = session_evt_data;
2848 if (EPOLLONESHOT & session_events)
2850 session = vcl_session_get (wrk, sid);
2851 session->vep.ev.events = 0;
2858 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2859 struct epoll_event *events, u32 maxevents,
2860 double wait_for_time, u32 * num_ev)
2862 svm_msg_q_msg_t *msg;
2866 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2867 goto handle_dequeued;
2869 svm_msg_q_lock (mq);
2870 if (svm_msg_q_is_empty (mq))
2874 svm_msg_q_unlock (mq);
2877 else if (wait_for_time < 0)
2879 svm_msg_q_wait (mq);
2883 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2885 svm_msg_q_unlock (mq);
2890 ASSERT (maxevents > *num_ev);
2891 vcl_mq_dequeue_batch (wrk, mq, maxevents - *num_ev);
2892 svm_msg_q_unlock (mq);
2895 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2897 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2898 e = svm_msg_q_msg_data (mq, msg);
2899 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2900 svm_msg_q_free_msg (mq, msg);
2902 vec_reset_length (wrk->mq_msg_vector);
2903 vcl_handle_pending_wrk_updates (wrk);
2908 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2909 int maxevents, u32 n_evts, double wait_for_time)
2911 double wait = 0, start = 0, now;
2915 wait = wait_for_time;
2916 start = clib_time_now (&wrk->clib_time);
2921 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2928 now = clib_time_now (&wrk->clib_time);
2929 wait -= now - start;
2938 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2939 int maxevents, u32 n_evts, double wait_for_time)
2941 vcl_mq_evt_conn_t *mqc;
2942 int __clib_unused n_read;
2946 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2948 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2949 vec_len (wrk->mq_events), wait_for_time);
2950 for (i = 0; i < n_mq_evts; i++)
2952 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2953 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2954 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
2956 if (!n_evts && n_mq_evts > 0)
2959 return (int) n_evts;
2963 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
2964 int maxevents, double wait_for_time)
2966 vcl_worker_t *wrk = vcl_worker_get_current ();
2967 vcl_session_t *vep_session;
2971 if (PREDICT_FALSE (maxevents <= 0))
2973 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
2974 return VPPCOM_EINVAL;
2977 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2979 return VPPCOM_EBADFD;
2981 if (PREDICT_FALSE (!vep_session->is_vep))
2983 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
2984 return VPPCOM_EINVAL;
2987 memset (events, 0, sizeof (*events) * maxevents);
2989 if (vec_len (wrk->unhandled_evts_vector))
2991 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2993 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
2995 if (n_evts == maxevents)
2997 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3001 vec_reset_length (wrk->unhandled_evts_vector);
3004 if (vcm->cfg.use_mq_eventfd)
3005 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3008 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3013 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3014 void *buffer, uint32_t * buflen)
3016 vcl_worker_t *wrk = vcl_worker_get_current ();
3017 vcl_session_t *session;
3019 u32 *flags = buffer, tmp_flags = 0;
3020 vppcom_endpt_t *ep = buffer;
3022 session = vcl_session_get_w_handle (wrk, session_handle);
3024 return VPPCOM_EBADFD;
3028 case VPPCOM_ATTR_GET_NREAD:
3029 rv = vcl_session_read_ready (session);
3030 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3034 case VPPCOM_ATTR_GET_NWRITE:
3035 rv = vcl_session_write_ready (session);
3036 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3040 case VPPCOM_ATTR_GET_FLAGS:
3041 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3043 *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr,
3044 VCL_SESS_ATTR_NONBLOCK));
3045 *buflen = sizeof (*flags);
3046 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3047 "is_nonblocking = %u", session_handle, *flags,
3048 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3054 case VPPCOM_ATTR_SET_FLAGS:
3055 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3057 if (*flags & O_NONBLOCK)
3058 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
3060 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
3062 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3063 " is_nonblocking = %u", session_handle, *flags,
3064 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3070 case VPPCOM_ATTR_GET_PEER_ADDR:
3071 if (PREDICT_TRUE (buffer && buflen &&
3072 (*buflen >= sizeof (*ep)) && ep->ip))
3074 ep->is_ip4 = session->transport.is_ip4;
3075 ep->port = session->transport.rmt_port;
3076 if (session->transport.is_ip4)
3077 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3078 sizeof (ip4_address_t));
3080 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3081 sizeof (ip6_address_t));
3082 *buflen = sizeof (*ep);
3083 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3084 "addr = %U, port %u", session_handle, ep->is_ip4,
3085 format_ip46_address, &session->transport.rmt_ip,
3086 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3087 clib_net_to_host_u16 (ep->port));
3093 case VPPCOM_ATTR_GET_LCL_ADDR:
3094 if (PREDICT_TRUE (buffer && buflen &&
3095 (*buflen >= sizeof (*ep)) && ep->ip))
3097 ep->is_ip4 = session->transport.is_ip4;
3098 ep->port = session->transport.lcl_port;
3099 if (session->transport.is_ip4)
3100 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3101 sizeof (ip4_address_t));
3103 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3104 sizeof (ip6_address_t));
3105 *buflen = sizeof (*ep);
3106 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3107 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3108 &session->transport.lcl_ip,
3109 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3110 clib_net_to_host_u16 (ep->port));
3116 case VPPCOM_ATTR_SET_LCL_ADDR:
3117 if (PREDICT_TRUE (buffer && buflen &&
3118 (*buflen >= sizeof (*ep)) && ep->ip))
3120 session->transport.is_ip4 = ep->is_ip4;
3121 session->transport.lcl_port = ep->port;
3122 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3123 *buflen = sizeof (*ep);
3124 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3125 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3126 &session->transport.lcl_ip,
3127 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3128 clib_net_to_host_u16 (ep->port));
3134 case VPPCOM_ATTR_GET_LIBC_EPFD:
3135 rv = session->libc_epfd;
3136 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3139 case VPPCOM_ATTR_SET_LIBC_EPFD:
3140 if (PREDICT_TRUE (buffer && buflen &&
3141 (*buflen == sizeof (session->libc_epfd))))
3143 session->libc_epfd = *(int *) buffer;
3144 *buflen = sizeof (session->libc_epfd);
3146 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3147 session->libc_epfd, *buflen);
3153 case VPPCOM_ATTR_GET_PROTOCOL:
3154 if (buffer && buflen && (*buflen >= sizeof (int)))
3156 *(int *) buffer = session->session_type;
3157 *buflen = sizeof (int);
3159 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3160 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3166 case VPPCOM_ATTR_GET_LISTEN:
3167 if (buffer && buflen && (*buflen >= sizeof (int)))
3169 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3170 VCL_SESS_ATTR_LISTEN);
3171 *buflen = sizeof (int);
3173 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3180 case VPPCOM_ATTR_GET_ERROR:
3181 if (buffer && buflen && (*buflen >= sizeof (int)))
3183 *(int *) buffer = 0;
3184 *buflen = sizeof (int);
3186 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3187 *(int *) buffer, *buflen);
3193 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3194 if (buffer && buflen && (*buflen >= sizeof (u32)))
3198 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3199 session->tx_fifo ? session->tx_fifo->nitems :
3200 vcm->cfg.tx_fifo_size);
3201 *buflen = sizeof (u32);
3203 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3204 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3211 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3212 if (buffer && buflen && (*buflen == sizeof (u32)))
3215 session->sndbuf_size = *(u32 *) buffer;
3216 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3217 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3224 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3225 if (buffer && buflen && (*buflen >= sizeof (u32)))
3229 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3230 session->rx_fifo ? session->rx_fifo->nitems :
3231 vcm->cfg.rx_fifo_size);
3232 *buflen = sizeof (u32);
3234 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3235 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3241 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3242 if (buffer && buflen && (*buflen == sizeof (u32)))
3245 session->rcvbuf_size = *(u32 *) buffer;
3246 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3247 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3254 case VPPCOM_ATTR_GET_REUSEADDR:
3255 if (buffer && buflen && (*buflen >= sizeof (int)))
3258 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3259 VCL_SESS_ATTR_REUSEADDR);
3260 *buflen = sizeof (int);
3262 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3263 *(int *) buffer, *buflen);
3269 case VPPCOM_ATTR_SET_REUSEADDR:
3270 if (buffer && buflen && (*buflen == sizeof (int)) &&
3271 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3274 if (*(int *) buffer)
3275 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
3277 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
3279 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3280 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEADDR),
3287 case VPPCOM_ATTR_GET_REUSEPORT:
3288 if (buffer && buflen && (*buflen >= sizeof (int)))
3291 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3292 VCL_SESS_ATTR_REUSEPORT);
3293 *buflen = sizeof (int);
3295 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3296 *(int *) buffer, *buflen);
3302 case VPPCOM_ATTR_SET_REUSEPORT:
3303 if (buffer && buflen && (*buflen == sizeof (int)) &&
3304 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3307 if (*(int *) buffer)
3308 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
3310 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
3312 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3313 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEPORT),
3320 case VPPCOM_ATTR_GET_BROADCAST:
3321 if (buffer && buflen && (*buflen >= sizeof (int)))
3324 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3325 VCL_SESS_ATTR_BROADCAST);
3326 *buflen = sizeof (int);
3328 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3329 *(int *) buffer, *buflen);
3335 case VPPCOM_ATTR_SET_BROADCAST:
3336 if (buffer && buflen && (*buflen == sizeof (int)))
3339 if (*(int *) buffer)
3340 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
3342 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
3344 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3345 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_BROADCAST),
3352 case VPPCOM_ATTR_GET_V6ONLY:
3353 if (buffer && buflen && (*buflen >= sizeof (int)))
3356 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3357 VCL_SESS_ATTR_V6ONLY);
3358 *buflen = sizeof (int);
3360 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3361 *(int *) buffer, *buflen);
3367 case VPPCOM_ATTR_SET_V6ONLY:
3368 if (buffer && buflen && (*buflen == sizeof (int)))
3371 if (*(int *) buffer)
3372 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
3374 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
3376 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3377 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_V6ONLY),
3384 case VPPCOM_ATTR_GET_KEEPALIVE:
3385 if (buffer && buflen && (*buflen >= sizeof (int)))
3388 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3389 VCL_SESS_ATTR_KEEPALIVE);
3390 *buflen = sizeof (int);
3392 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3393 *(int *) buffer, *buflen);
3399 case VPPCOM_ATTR_SET_KEEPALIVE:
3400 if (buffer && buflen && (*buflen == sizeof (int)))
3403 if (*(int *) buffer)
3404 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3406 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3408 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3409 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_KEEPALIVE),
3416 case VPPCOM_ATTR_GET_TCP_NODELAY:
3417 if (buffer && buflen && (*buflen >= sizeof (int)))
3420 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3421 VCL_SESS_ATTR_TCP_NODELAY);
3422 *buflen = sizeof (int);
3424 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3425 *(int *) buffer, *buflen);
3431 case VPPCOM_ATTR_SET_TCP_NODELAY:
3432 if (buffer && buflen && (*buflen == sizeof (int)))
3435 if (*(int *) buffer)
3436 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3438 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3440 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3441 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_NODELAY),
3448 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3449 if (buffer && buflen && (*buflen >= sizeof (int)))
3452 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3453 VCL_SESS_ATTR_TCP_KEEPIDLE);
3454 *buflen = sizeof (int);
3456 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3457 *(int *) buffer, *buflen);
3463 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3464 if (buffer && buflen && (*buflen == sizeof (int)))
3467 if (*(int *) buffer)
3468 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3470 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3472 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3473 VCL_SESS_ATTR_TEST (session->attr,
3474 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3480 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3481 if (buffer && buflen && (*buflen >= sizeof (int)))
3484 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3485 VCL_SESS_ATTR_TCP_KEEPINTVL);
3486 *buflen = sizeof (int);
3488 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3489 *(int *) buffer, *buflen);
3495 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3496 if (buffer && buflen && (*buflen == sizeof (int)))
3499 if (*(int *) buffer)
3500 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3502 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3504 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3505 VCL_SESS_ATTR_TEST (session->attr,
3506 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3512 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3513 if (buffer && buflen && (*buflen >= sizeof (u32)))
3516 *(u32 *) buffer = session->user_mss;
3517 *buflen = sizeof (int);
3519 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3520 *(int *) buffer, *buflen);
3526 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3527 if (buffer && buflen && (*buflen == sizeof (u32)))
3530 session->user_mss = *(u32 *) buffer;
3532 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3533 session->user_mss, *buflen);
3539 case VPPCOM_ATTR_SET_SHUT:
3540 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3541 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3542 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3543 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3546 case VPPCOM_ATTR_GET_SHUT:
3547 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3549 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3552 *(int *) buffer = SHUT_RD;
3553 else if (tmp_flags == 2)
3554 *(int *) buffer = SHUT_WR;
3555 else if (tmp_flags == 3)
3556 *(int *) buffer = SHUT_RDWR;
3557 *buflen = sizeof (int);
3568 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3569 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3571 vcl_worker_t *wrk = vcl_worker_get_current ();
3573 vcl_session_t *session = 0;
3577 session = vcl_session_get_w_handle (wrk, session_handle);
3578 if (PREDICT_FALSE (!session))
3580 VDBG (0, "sh 0x%llx is closed!", session_handle);
3581 return VPPCOM_EBADFD;
3583 ep->is_ip4 = session->transport.is_ip4;
3584 ep->port = session->transport.rmt_port;
3588 rv = vppcom_session_read (session_handle, buffer, buflen);
3589 else if (flags & MSG_PEEK)
3590 rv = vppcom_session_peek (session_handle, buffer, buflen);
3593 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3594 return VPPCOM_EAFNOSUPPORT;
3599 if (session->transport.is_ip4)
3600 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3601 sizeof (ip4_address_t));
3603 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3604 sizeof (ip6_address_t));
3611 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3612 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3615 return VPPCOM_EINVAL;
3620 return VPPCOM_EINVAL;
3625 // TBD check the flags and do the right thing
3626 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3629 return (vppcom_session_write_inline (session_handle, buffer, buflen, 1));
3633 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3635 vcl_worker_t *wrk = vcl_worker_get_current ();
3636 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3637 u32 i, keep_trying = 1;
3638 svm_msg_q_msg_t msg;
3642 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3645 return VPPCOM_EFAULT;
3649 vcl_session_t *session;
3651 /* Dequeue all events and drop all unhandled io events */
3652 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3654 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3655 vcl_handle_mq_event (wrk, e);
3656 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3658 vec_reset_length (wrk->unhandled_evts_vector);
3660 for (i = 0; i < n_sids; i++)
3662 session = vcl_session_get (wrk, vp[i].sh);
3665 vp[i].revents = POLLHUP;
3672 if (POLLIN & vp[i].events)
3674 rv = vcl_session_read_ready (session);
3677 vp[i].revents |= POLLIN;
3684 case VPPCOM_ECONNRESET:
3685 vp[i].revents = POLLHUP;
3689 vp[i].revents = POLLERR;
3696 if (POLLOUT & vp[i].events)
3698 rv = vcl_session_write_ready (session);
3701 vp[i].revents |= POLLOUT;
3708 case VPPCOM_ECONNRESET:
3709 vp[i].revents = POLLHUP;
3713 vp[i].revents = POLLERR;
3720 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3722 vp[i].revents = POLLNVAL;
3726 if (wait_for_time != -1)
3727 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3729 while ((num_ev == 0) && keep_trying);
3735 vppcom_mq_epoll_fd (void)
3737 vcl_worker_t *wrk = vcl_worker_get_current ();
3738 return wrk->mqs_epfd;
3742 vppcom_session_index (vcl_session_handle_t session_handle)
3744 return session_handle & 0xFFFFFF;
3748 vppcom_session_worker (vcl_session_handle_t session_handle)
3750 return session_handle >> 24;
3754 vppcom_worker_register (void)
3760 if (!vcl_worker_alloc_and_init ())
3761 return VPPCOM_EEXIST;
3763 wrk = vcl_worker_get_current ();
3764 wrk_name = format (0, "%s-wrk-%u", vcm->app_name, wrk->wrk_index);
3766 rv = vppcom_connect_to_vpp ((char *) wrk_name);
3767 vec_free (wrk_name);
3770 return VPPCOM_EFAULT;
3772 if (vcl_worker_register_with_vpp ())
3773 return VPPCOM_EEXIST;
3779 vppcom_worker_unregister (void)
3781 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3782 vcl_set_worker_index (~0);
3786 vppcom_worker_index (void)
3788 return vcl_get_worker_index ();
3792 vppcom_worker_mqs_epfd (void)
3794 vcl_worker_t *wrk = vcl_worker_get_current ();
3795 if (!vcm->cfg.use_mq_eventfd)
3797 return wrk->mqs_epfd;
3801 vppcom_session_is_connectable_listener (uint32_t session_handle)
3803 vcl_session_t *session;
3804 vcl_worker_t *wrk = vcl_worker_get_current ();
3805 session = vcl_session_get_w_handle (wrk, session_handle);
3807 return VPPCOM_EBADFD;
3808 return vcl_session_is_connectable_listener (wrk, session);
3812 vppcom_session_listener (uint32_t session_handle)
3814 vcl_worker_t *wrk = vcl_worker_get_current ();
3815 vcl_session_t *listen_session, *session;
3816 session = vcl_session_get_w_handle (wrk, session_handle);
3818 return VPPCOM_EBADFD;
3819 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3820 return VPPCOM_EBADFD;
3821 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3822 if (!listen_session)
3823 return VPPCOM_EBADFD;
3824 return vcl_session_handle (listen_session);
3828 vppcom_session_n_accepted (uint32_t session_handle)
3830 vcl_worker_t *wrk = vcl_worker_get_current ();
3831 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3833 return VPPCOM_EBADFD;
3834 return session->n_accepted_sessions;
3838 * fd.io coding-style-patch-verification: ON
3841 * eval: (c-set-style "gnu")