2 * Copyright (c) 2017-2019 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
18 #include <vcl/vppcom.h>
19 #include <vcl/vcl_debug.h>
20 #include <vcl/vcl_private.h>
21 #include <svm/fifo_segment.h>
23 __thread uword __vcl_worker_index = ~0;
26 vcl_segment_is_not_mounted (vcl_worker_t * wrk, u64 segment_handle)
30 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
33 segment_index = vcl_segment_table_lookup (segment_handle);
34 if (segment_index != VCL_INVALID_SEGMENT_INDEX)
41 vcl_mq_dequeue_batch (vcl_worker_t * wrk, svm_msg_q_t * mq, u32 n_max_msg)
47 n_msgs = clib_min (svm_msg_q_size (mq), n_max_msg);
48 for (i = 0; i < n_msgs; i++)
50 vec_add2 (wrk->mq_msg_vector, msg, 1);
51 svm_msg_q_sub_w_lock (mq, msg);
57 vppcom_session_state_str (vcl_session_state_t state)
79 case STATE_VPP_CLOSING:
80 st = "STATE_VPP_CLOSING";
83 case STATE_DISCONNECT:
84 st = "STATE_DISCONNECT";
88 st = "STATE_DETACHED";
95 case STATE_LISTEN_NO_MQ:
96 st = "STATE_LISTEN_NO_MQ";
100 st = "UNKNOWN_STATE";
108 format_ip4_address (u8 * s, va_list * args)
110 u8 *a = va_arg (*args, u8 *);
111 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
115 format_ip6_address (u8 * s, va_list * args)
117 ip6_address_t *a = va_arg (*args, ip6_address_t *);
118 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
120 i_max_n_zero = ARRAY_LEN (a->as_u16);
122 i_first_zero = i_max_n_zero;
124 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
126 u32 is_zero = a->as_u16[i] == 0;
127 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
133 if ((!is_zero && n_zeros > max_n_zeros)
134 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
136 i_max_n_zero = i_first_zero;
137 max_n_zeros = n_zeros;
138 i_first_zero = ARRAY_LEN (a->as_u16);
143 last_double_colon = 0;
144 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
146 if (i == i_max_n_zero && max_n_zeros > 1)
148 s = format (s, "::");
149 i += max_n_zeros - 1;
150 last_double_colon = 1;
154 s = format (s, "%s%x",
155 (last_double_colon || i == 0) ? "" : ":",
156 clib_net_to_host_u16 (a->as_u16[i]));
157 last_double_colon = 0;
164 /* Format an IP46 address. */
166 format_ip46_address (u8 * s, va_list * args)
168 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
169 ip46_type_t type = va_arg (*args, ip46_type_t);
175 is_ip4 = ip46_address_is_ip4 (ip46);
186 format (s, "%U", format_ip4_address, &ip46->ip4) :
187 format (s, "%U", format_ip6_address, &ip46->ip6);
191 * VPPCOM Utility Functions
195 vcl_send_session_listen (vcl_worker_t * wrk, vcl_session_t * s)
197 app_session_evt_t _app_evt, *app_evt = &_app_evt;
198 session_listen_msg_t *mp;
201 mq = vcl_worker_ctrl_mq (wrk);
202 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_LISTEN);
203 mp = (session_listen_msg_t *) app_evt->evt->data;
204 memset (mp, 0, sizeof (*mp));
205 mp->client_index = wrk->my_client_index;
206 mp->context = s->session_index;
207 mp->wrk_index = wrk->vpp_wrk_index;
208 mp->is_ip4 = s->transport.is_ip4;
209 clib_memcpy_fast (&mp->ip, &s->transport.lcl_ip, sizeof (mp->ip));
210 mp->port = s->transport.lcl_port;
211 mp->proto = s->session_type;
212 app_send_ctrl_evt_to_vpp (mq, app_evt);
216 vcl_send_session_connect (vcl_worker_t * wrk, vcl_session_t * s)
218 app_session_evt_t _app_evt, *app_evt = &_app_evt;
219 session_connect_msg_t *mp;
222 mq = vcl_worker_ctrl_mq (wrk);
223 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_CONNECT);
224 mp = (session_connect_msg_t *) app_evt->evt->data;
225 memset (mp, 0, sizeof (*mp));
226 mp->client_index = wrk->my_client_index;
227 mp->context = s->session_index;
228 mp->wrk_index = wrk->vpp_wrk_index;
229 mp->is_ip4 = s->transport.is_ip4;
230 mp->parent_handle = s->parent_handle;
231 clib_memcpy_fast (&mp->ip, &s->transport.rmt_ip, sizeof (mp->ip));
232 clib_memcpy_fast (&mp->lcl_ip, &s->transport.lcl_ip, sizeof (mp->lcl_ip));
233 mp->port = s->transport.rmt_port;
234 mp->lcl_port = s->transport.lcl_port;
235 mp->proto = s->session_type;
236 if (s->flags & VCL_SESSION_F_CONNECTED)
237 mp->flags |= TRANSPORT_CFG_F_CONNECTED;
238 app_send_ctrl_evt_to_vpp (mq, app_evt);
242 vcl_send_session_unlisten (vcl_worker_t * wrk, vcl_session_t * s)
244 app_session_evt_t _app_evt, *app_evt = &_app_evt;
245 session_unlisten_msg_t *mp;
248 mq = vcl_worker_ctrl_mq (wrk);
249 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_UNLISTEN);
250 mp = (session_unlisten_msg_t *) app_evt->evt->data;
251 memset (mp, 0, sizeof (*mp));
252 mp->client_index = wrk->my_client_index;
253 mp->wrk_index = wrk->vpp_wrk_index;
254 mp->handle = s->vpp_handle;
255 mp->context = wrk->wrk_index;
256 app_send_ctrl_evt_to_vpp (mq, app_evt);
260 vcl_send_session_disconnect (vcl_worker_t * wrk, vcl_session_t * s)
262 app_session_evt_t _app_evt, *app_evt = &_app_evt;
263 session_disconnect_msg_t *mp;
266 /* Send to thread that owns the session */
268 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_DISCONNECT);
269 mp = (session_disconnect_msg_t *) app_evt->evt->data;
270 memset (mp, 0, sizeof (*mp));
271 mp->client_index = wrk->my_client_index;
272 mp->handle = s->vpp_handle;
273 app_send_ctrl_evt_to_vpp (mq, app_evt);
277 vcl_send_app_detach (vcl_worker_t * wrk)
279 app_session_evt_t _app_evt, *app_evt = &_app_evt;
280 session_app_detach_msg_t *mp;
283 mq = vcl_worker_ctrl_mq (wrk);
284 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_DETACH);
285 mp = (session_app_detach_msg_t *) app_evt->evt->data;
286 memset (mp, 0, sizeof (*mp));
287 mp->client_index = wrk->my_client_index;
288 app_send_ctrl_evt_to_vpp (mq, app_evt);
292 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
293 session_handle_t handle, int retval)
295 app_session_evt_t _app_evt, *app_evt = &_app_evt;
296 session_accepted_reply_msg_t *rmp;
297 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
298 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
299 rmp->handle = handle;
300 rmp->context = context;
301 rmp->retval = retval;
302 app_send_ctrl_evt_to_vpp (mq, app_evt);
306 vcl_send_session_disconnected_reply (svm_msg_q_t * mq, u32 context,
307 session_handle_t handle, int retval)
309 app_session_evt_t _app_evt, *app_evt = &_app_evt;
310 session_disconnected_reply_msg_t *rmp;
311 app_alloc_ctrl_evt_to_vpp (mq, app_evt,
312 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
313 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
314 rmp->handle = handle;
315 rmp->context = context;
316 rmp->retval = retval;
317 app_send_ctrl_evt_to_vpp (mq, app_evt);
321 vcl_send_session_reset_reply (svm_msg_q_t * mq, u32 context,
322 session_handle_t handle, int retval)
324 app_session_evt_t _app_evt, *app_evt = &_app_evt;
325 session_reset_reply_msg_t *rmp;
326 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_RESET_REPLY);
327 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
328 rmp->handle = handle;
329 rmp->context = context;
330 rmp->retval = retval;
331 app_send_ctrl_evt_to_vpp (mq, app_evt);
335 vcl_send_session_worker_update (vcl_worker_t * wrk, vcl_session_t * s,
338 app_session_evt_t _app_evt, *app_evt = &_app_evt;
339 session_worker_update_msg_t *mp;
342 mq = vcl_session_vpp_evt_q (wrk, s);
343 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_WORKER_UPDATE);
344 mp = (session_worker_update_msg_t *) app_evt->evt->data;
345 mp->client_index = wrk->my_client_index;
346 mp->handle = s->vpp_handle;
347 mp->req_wrk_index = wrk->vpp_wrk_index;
348 mp->wrk_index = wrk_index;
349 app_send_ctrl_evt_to_vpp (mq, app_evt);
353 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp,
356 vcl_session_t *session, *listen_session;
357 svm_fifo_t *rx_fifo, *tx_fifo;
361 session = vcl_session_alloc (wrk);
363 listen_session = vcl_session_get (wrk, ls_index);
364 if (listen_session->vpp_handle != mp->listener_handle)
366 VDBG (0, "ERROR: listener handle %lu does not match session %u",
367 mp->listener_handle, ls_index);
371 if (vcl_segment_is_not_mounted (wrk, mp->segment_handle))
373 VDBG (0, "ERROR: segment for session %u is not mounted!",
374 session->session_index);
378 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
379 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
380 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
382 rx_fifo->client_session_index = session->session_index;
383 tx_fifo->client_session_index = session->session_index;
384 rx_fifo->client_thread_index = vcl_get_worker_index ();
385 tx_fifo->client_thread_index = vcl_get_worker_index ();
386 vpp_wrk_index = tx_fifo->master_thread_index;
387 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
388 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
390 session->vpp_handle = mp->handle;
391 session->vpp_thread_index = rx_fifo->master_thread_index;
392 session->rx_fifo = rx_fifo;
393 session->tx_fifo = tx_fifo;
395 session->session_state = STATE_ACCEPT;
396 session->transport.rmt_port = mp->rmt.port;
397 session->transport.is_ip4 = mp->rmt.is_ip4;
398 clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
399 sizeof (ip46_address_t));
401 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
402 session->transport.lcl_port = listen_session->transport.lcl_port;
403 session->transport.lcl_ip = listen_session->transport.lcl_ip;
404 session->session_type = listen_session->session_type;
405 session->is_dgram = vcl_proto_is_dgram (session->session_type);
406 session->listener_index = listen_session->session_index;
407 listen_session->n_accepted_sessions++;
409 VDBG (1, "session %u [0x%llx]: client accept request from %s address %U"
410 " port %d queue %p!", session->session_index, mp->handle,
411 mp->rmt.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->rmt.ip,
412 mp->rmt.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
413 clib_net_to_host_u16 (mp->rmt.port), session->vpp_evt_q);
414 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
416 vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context,
417 session->vpp_handle, 0);
419 return session->session_index;
422 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
423 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
424 VNET_API_ERROR_INVALID_ARGUMENT);
425 vcl_session_free (wrk, session);
426 return VCL_INVALID_SESSION_INDEX;
430 vcl_session_connected_handler (vcl_worker_t * wrk,
431 session_connected_msg_t * mp)
433 u32 session_index, vpp_wrk_index;
434 svm_fifo_t *rx_fifo, *tx_fifo;
435 vcl_session_t *session = 0;
437 session_index = mp->context;
438 session = vcl_session_get (wrk, session_index);
441 VDBG (0, "ERROR: vpp handle 0x%llx has no session index (%u)!",
442 mp->handle, session_index);
443 return VCL_INVALID_SESSION_INDEX;
447 VDBG (0, "ERROR: session index %u: connect failed! %U",
448 session_index, format_session_error, mp->retval);
449 session->session_state = STATE_DETACHED | STATE_DISCONNECT;
450 session->vpp_handle = mp->handle;
451 return session_index;
454 session->vpp_handle = mp->handle;
455 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
457 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
458 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
459 if (vcl_segment_is_not_mounted (wrk, mp->segment_handle))
461 VDBG (0, "segment for session %u is not mounted!",
462 session->session_index);
463 session->session_state = STATE_DETACHED | STATE_DISCONNECT;
464 vcl_send_session_disconnect (wrk, session);
465 return session_index;
468 rx_fifo->client_session_index = session_index;
469 tx_fifo->client_session_index = session_index;
470 rx_fifo->client_thread_index = vcl_get_worker_index ();
471 tx_fifo->client_thread_index = vcl_get_worker_index ();
473 vpp_wrk_index = tx_fifo->master_thread_index;
474 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
475 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
479 session->ct_rx_fifo = uword_to_pointer (mp->ct_rx_fifo, svm_fifo_t *);
480 session->ct_tx_fifo = uword_to_pointer (mp->ct_tx_fifo, svm_fifo_t *);
481 if (vcl_segment_is_not_mounted (wrk, mp->ct_segment_handle))
483 VDBG (0, "ct segment for session %u is not mounted!",
484 session->session_index);
485 session->session_state = STATE_DETACHED | STATE_DISCONNECT;
486 vcl_send_session_disconnect (wrk, session);
487 return session_index;
491 session->rx_fifo = rx_fifo;
492 session->tx_fifo = tx_fifo;
493 session->vpp_thread_index = rx_fifo->master_thread_index;
494 session->transport.is_ip4 = mp->lcl.is_ip4;
495 clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
496 sizeof (session->transport.lcl_ip));
497 session->transport.lcl_port = mp->lcl.port;
498 session->session_state = STATE_CONNECT;
500 /* Add it to lookup table */
501 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
503 VDBG (1, "session %u [0x%llx] connected! rx_fifo %p, refcnt %d, tx_fifo %p,"
504 " refcnt %d", session_index, mp->handle, session->rx_fifo,
505 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
507 return session_index;
511 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
513 vcl_session_msg_t *accepted_msg;
516 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
518 accepted_msg = &session->accept_evts_fifo[i];
519 if (accepted_msg->accepted_msg.handle == handle)
521 accepted_msg->flags |= flags;
529 vcl_session_reset_handler (vcl_worker_t * wrk,
530 session_reset_msg_t * reset_msg)
532 vcl_session_t *session;
535 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
536 session = vcl_session_get (wrk, sid);
539 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
540 return VCL_INVALID_SESSION_INDEX;
543 /* Caught a reset before actually accepting the session */
544 if (session->session_state == STATE_LISTEN)
547 if (!vcl_flag_accepted_session (session, reset_msg->handle,
548 VCL_ACCEPTED_F_RESET))
549 VDBG (0, "session was not accepted!");
550 return VCL_INVALID_SESSION_INDEX;
553 if (session->session_state != STATE_CLOSED)
554 session->session_state = STATE_DISCONNECT;
555 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
560 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
562 vcl_session_t *session;
563 u32 sid = mp->context;
565 session = vcl_session_get (wrk, sid);
568 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
569 format_session_error, mp->retval);
572 session->session_state = STATE_DETACHED;
573 session->vpp_handle = mp->handle;
578 VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!",
580 return VCL_INVALID_SESSION_INDEX;
584 session->vpp_handle = mp->handle;
585 session->transport.is_ip4 = mp->lcl_is_ip4;
586 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
587 sizeof (ip46_address_t));
588 session->transport.lcl_port = mp->lcl_port;
589 vcl_session_table_add_listener (wrk, mp->handle, sid);
590 session->session_state = STATE_LISTEN;
592 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
593 vec_validate (wrk->vpp_event_queues, 0);
594 wrk->vpp_event_queues[0] = session->vpp_evt_q;
596 if (vcl_session_is_cl (session))
598 svm_fifo_t *rx_fifo, *tx_fifo;
599 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
600 rx_fifo = uword_to_pointer (mp->rx_fifo, svm_fifo_t *);
601 rx_fifo->client_session_index = sid;
602 tx_fifo = uword_to_pointer (mp->tx_fifo, svm_fifo_t *);
603 tx_fifo->client_session_index = sid;
604 session->rx_fifo = rx_fifo;
605 session->tx_fifo = tx_fifo;
608 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
613 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
615 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
618 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
621 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
624 if (s->session_state != STATE_DISCONNECT)
626 /* Connected udp listener */
627 if (s->session_type == VPPCOM_PROTO_UDP
628 && s->session_state == STATE_CLOSED)
631 VDBG (0, "Unlisten session in wrong state %llx", mp->handle);
636 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
637 s->session_index, mp->handle, format_session_error, mp->retval);
639 if (mp->context != wrk->wrk_index)
640 VDBG (0, "wrong context");
642 vcl_session_table_del_vpp_handle (wrk, mp->handle);
643 vcl_session_free (wrk, s);
647 vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
649 session_migrated_msg_t *mp = (session_migrated_msg_t *) data;
652 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
655 VDBG (0, "Migrated notification with wrong handle %llx", mp->handle);
659 s->vpp_thread_index = mp->vpp_thread_index;
660 s->vpp_handle = mp->new_handle;
661 s->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
663 vec_validate (wrk->vpp_event_queues, s->vpp_thread_index);
664 wrk->vpp_event_queues[s->vpp_thread_index] = s->vpp_evt_q;
666 vcl_session_table_del_vpp_handle (wrk, mp->handle);
667 vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
669 /* Generate new tx event if we have outstanding data */
670 if (svm_fifo_has_event (s->tx_fifo))
671 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
672 SESSION_IO_EVT_TX, SVM_Q_WAIT);
674 VDBG (0, "Migrated 0x%lx to thread %u 0x%lx", mp->handle,
675 s->vpp_thread_index, mp->new_handle);
678 static vcl_session_t *
679 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
681 vcl_session_msg_t *vcl_msg;
682 vcl_session_t *session;
684 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
685 if (PREDICT_FALSE (session != 0))
686 VWRN ("session overlap handle %lu state %u!", msg->handle,
687 session->session_state);
689 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
692 VERR ("couldn't find listen session: listener handle %llx",
693 msg->listener_handle);
697 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
699 vcl_msg->accepted_msg = *msg;
700 /* Session handle points to listener until fully accepted by app */
701 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
706 static vcl_session_t *
707 vcl_session_disconnected_handler (vcl_worker_t * wrk,
708 session_disconnected_msg_t * msg)
710 vcl_session_t *session;
712 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
715 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
719 /* Late disconnect notification on a session that has been closed */
720 if (session->session_state == STATE_CLOSED)
723 /* Caught a disconnect before actually accepting the session */
724 if (session->session_state == STATE_LISTEN)
726 if (!vcl_flag_accepted_session (session, msg->handle,
727 VCL_ACCEPTED_F_CLOSED))
728 VDBG (0, "session was not accepted!");
732 /* If not already reset change state */
733 if (session->session_state != STATE_DISCONNECT)
734 session->session_state = STATE_VPP_CLOSING;
740 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
742 session_cleanup_msg_t *msg;
743 vcl_session_t *session;
745 msg = (session_cleanup_msg_t *) data;
746 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
749 VDBG (0, "disconnect confirmed for unknown handle 0x%llx", msg->handle);
753 if (msg->type == SESSION_CLEANUP_TRANSPORT)
755 /* Transport was cleaned up before we confirmed close. Probably the
756 * app is still waiting for some data that cannot be delivered.
757 * Confirm close to make sure everything is cleaned up */
758 if (session->session_state == STATE_VPP_CLOSING)
759 vcl_session_cleanup (wrk, session, vcl_session_handle (session),
760 1 /* do_disconnect */ );
764 vcl_session_table_del_vpp_handle (wrk, msg->handle);
765 /* Should not happen. App did not close the connection so don't free it. */
766 if (session->session_state != STATE_CLOSED)
768 VDBG (0, "app did not close session %d", session->session_index);
769 session->session_state = STATE_DETACHED;
770 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
773 vcl_session_free (wrk, session);
777 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
779 session_req_worker_update_msg_t *msg;
782 msg = (session_req_worker_update_msg_t *) data;
783 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
787 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
791 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
793 session_worker_update_reply_msg_t *msg;
796 msg = (session_worker_update_reply_msg_t *) data;
797 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
800 VDBG (0, "unknown handle 0x%llx", msg->handle);
803 if (vcl_segment_is_not_mounted (wrk, msg->segment_handle))
805 clib_warning ("segment for session %u is not mounted!",
812 s->rx_fifo = uword_to_pointer (msg->rx_fifo, svm_fifo_t *);
813 s->tx_fifo = uword_to_pointer (msg->tx_fifo, svm_fifo_t *);
814 s->rx_fifo->client_session_index = s->session_index;
815 s->tx_fifo->client_session_index = s->session_index;
816 s->rx_fifo->client_thread_index = wrk->wrk_index;
817 s->tx_fifo->client_thread_index = wrk->wrk_index;
819 s->session_state = STATE_UPDATED;
821 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
822 s->vpp_handle, wrk->wrk_index);
826 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
828 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
829 session_app_add_segment_msg_t *msg;
833 msg = (session_app_add_segment_msg_t *) data;
837 vl_socket_client_recv_fd_msg2 (&wrk->bapi_sock_ctx, &fd, 1, 5);
838 seg_type = SSVM_SEGMENT_MEMFD;
841 segment_handle = msg->segment_handle;
842 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
844 clib_warning ("invalid segment handle");
848 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
851 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
855 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
860 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
862 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
863 vcl_segment_detach (msg->segment_handle);
864 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
868 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
870 session_disconnected_msg_t *disconnected_msg;
871 vcl_session_t *session;
873 switch (e->event_type)
875 case SESSION_IO_EVT_RX:
876 case SESSION_IO_EVT_TX:
877 session = vcl_session_get (wrk, e->session_index);
878 if (!session || !(session->session_state & STATE_OPEN))
880 vec_add1 (wrk->unhandled_evts_vector, *e);
882 case SESSION_CTRL_EVT_ACCEPTED:
883 vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
885 case SESSION_CTRL_EVT_CONNECTED:
886 vcl_session_connected_handler (wrk,
887 (session_connected_msg_t *) e->data);
889 case SESSION_CTRL_EVT_DISCONNECTED:
890 disconnected_msg = (session_disconnected_msg_t *) e->data;
891 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
894 VDBG (0, "disconnected session %u [0x%llx]", session->session_index,
895 session->vpp_handle);
897 case SESSION_CTRL_EVT_RESET:
898 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
900 case SESSION_CTRL_EVT_BOUND:
901 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
903 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
904 vcl_session_unlisten_reply_handler (wrk, e->data);
906 case SESSION_CTRL_EVT_MIGRATED:
907 vcl_session_migrated_handler (wrk, e->data);
909 case SESSION_CTRL_EVT_CLEANUP:
910 vcl_session_cleanup_handler (wrk, e->data);
912 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
913 vcl_session_req_worker_update_handler (wrk, e->data);
915 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
916 vcl_session_worker_update_reply_handler (wrk, e->data);
918 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
919 vcl_session_app_add_segment_handler (wrk, e->data);
921 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
922 vcl_session_app_del_segment_handler (wrk, e->data);
925 clib_warning ("unhandled %u", e->event_type);
931 vppcom_wait_for_session_state_change (u32 session_index,
932 vcl_session_state_t state,
935 vcl_worker_t *wrk = vcl_worker_get_current ();
936 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
937 vcl_session_t *volatile session;
943 session = vcl_session_get (wrk, session_index);
944 if (PREDICT_FALSE (!session))
946 return VPPCOM_EBADFD;
948 if (session->session_state & state)
952 if (session->session_state & STATE_DETACHED)
954 return VPPCOM_ECONNREFUSED;
957 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
962 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
963 vcl_handle_mq_event (wrk, e);
964 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
966 while (clib_time_now (&wrk->clib_time) < timeout);
968 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
969 vppcom_session_state_str (state));
970 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
972 return VPPCOM_ETIMEDOUT;
976 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
978 vcl_session_state_t state;
982 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
985 vec_foreach (sip, wrk->pending_session_wrk_updates)
987 s = vcl_session_get (wrk, *sip);
988 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
989 state = s->session_state;
990 vppcom_wait_for_session_state_change (s->session_index, STATE_UPDATED, 5);
991 s->session_state = state;
993 vec_reset_length (wrk->pending_session_wrk_updates);
997 vcl_flush_mq_events (void)
999 vcl_worker_t *wrk = vcl_worker_get_current ();
1000 svm_msg_q_msg_t *msg;
1005 mq = wrk->app_event_queue;
1006 svm_msg_q_lock (mq);
1007 vcl_mq_dequeue_batch (wrk, mq, ~0);
1008 svm_msg_q_unlock (mq);
1010 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1012 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1013 e = svm_msg_q_msg_data (mq, msg);
1014 vcl_handle_mq_event (wrk, e);
1015 svm_msg_q_free_msg (mq, msg);
1017 vec_reset_length (wrk->mq_msg_vector);
1018 vcl_handle_pending_wrk_updates (wrk);
1022 vppcom_app_session_enable (void)
1026 if (vcm->app_state != STATE_APP_ENABLED)
1028 vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
1029 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
1030 if (PREDICT_FALSE (rv))
1032 VDBG (0, "application session enable timed out! returning %d (%s)",
1033 rv, vppcom_retval_str (rv));
1041 vppcom_app_attach (void)
1045 vppcom_app_send_attach ();
1046 rv = vcl_wait_for_app_state_change (STATE_APP_ATTACHED);
1047 if (PREDICT_FALSE (rv))
1049 VDBG (0, "application attach timed out! returning %d (%s)", rv,
1050 vppcom_retval_str (rv));
1058 vppcom_session_unbind (u32 session_handle)
1060 vcl_worker_t *wrk = vcl_worker_get_current ();
1061 session_accepted_msg_t *accepted_msg;
1062 vcl_session_t *session = 0;
1063 vcl_session_msg_t *evt;
1065 session = vcl_session_get_w_handle (wrk, session_handle);
1067 return VPPCOM_EBADFD;
1069 /* Flush pending accept events, if any */
1070 while (clib_fifo_elts (session->accept_evts_fifo))
1072 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1073 accepted_msg = &evt->accepted_msg;
1074 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1075 vcl_send_session_accepted_reply (session->vpp_evt_q,
1076 accepted_msg->context,
1077 session->vpp_handle, -1);
1079 clib_fifo_free (session->accept_evts_fifo);
1081 vcl_send_session_unlisten (wrk, session);
1083 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1084 session->vpp_handle);
1085 vcl_evt (VCL_EVT_UNBIND, session);
1087 session->vpp_handle = ~0;
1088 session->session_state = STATE_DISCONNECT;
1094 vppcom_session_disconnect (u32 session_handle)
1096 vcl_worker_t *wrk = vcl_worker_get_current ();
1097 svm_msg_q_t *vpp_evt_q;
1098 vcl_session_t *session, *listen_session;
1099 vcl_session_state_t state;
1102 session = vcl_session_get_w_handle (wrk, session_handle);
1104 return VPPCOM_EBADFD;
1106 vpp_handle = session->vpp_handle;
1107 state = session->session_state;
1109 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
1110 vpp_handle, state, vppcom_session_state_str (state));
1112 if (PREDICT_FALSE (state & STATE_LISTEN))
1114 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
1115 return VPPCOM_EBADFD;
1118 if (state & STATE_VPP_CLOSING)
1120 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
1121 vcl_send_session_disconnected_reply (vpp_evt_q, wrk->my_client_index,
1123 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
1124 session->session_index, vpp_handle);
1128 VDBG (1, "session %u [0x%llx]: sending disconnect...",
1129 session->session_index, vpp_handle);
1130 vcl_send_session_disconnect (wrk, session);
1133 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
1135 listen_session = vcl_session_get (wrk, session->listener_index);
1136 listen_session->n_accepted_sessions--;
1145 * Notify vpp of the disconnect and mark the worker as free. If we're the
1146 * last worker, do a full cleanup otherwise, since we're probably a forked
1147 * child, avoid syscalls as much as possible. We might've lost privileges.
1150 vppcom_app_exit (void)
1152 if (!pool_elts (vcm->workers))
1154 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1155 vcl_set_worker_index (~0);
1156 vcl_elog_stop (vcm);
1160 * VPPCOM Public API functions
1163 vppcom_app_create (char *app_name)
1165 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1170 VDBG (1, "already initialized");
1171 return VPPCOM_EEXIST;
1175 vppcom_cfg (&vcm->cfg);
1176 vcl_cfg = &vcm->cfg;
1178 vcm->main_cpu = pthread_self ();
1179 vcm->main_pid = getpid ();
1180 vcm->app_name = format (0, "%s", app_name);
1181 vppcom_init_error_string_table ();
1182 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1183 20 /* timeout in secs */ );
1184 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1185 clib_spinlock_init (&vcm->workers_lock);
1186 clib_rwlock_init (&vcm->segment_table_lock);
1187 atexit (vppcom_app_exit);
1189 /* Allocate default worker */
1190 vcl_worker_alloc_and_init ();
1192 /* API hookup and connect to VPP */
1193 vcl_elog_init (vcm);
1194 vcm->app_state = STATE_APP_START;
1195 rv = vppcom_connect_to_vpp (app_name);
1198 VERR ("couldn't connect to VPP!");
1201 VDBG (0, "sending session enable");
1202 rv = vppcom_app_session_enable ();
1205 VERR ("vppcom_app_session_enable() failed!");
1209 VDBG (0, "sending app attach");
1210 rv = vppcom_app_attach ();
1213 VERR ("vppcom_app_attach() failed!");
1217 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1218 vcm->workers[0].my_client_index, vcm->workers[0].my_client_index);
1224 vppcom_app_destroy (void)
1226 vcl_worker_t *wrk, *current_wrk;
1227 struct dlmallinfo mi;
1230 if (!pool_elts (vcm->workers))
1233 vcl_evt (VCL_EVT_DETACH, vcm);
1235 current_wrk = vcl_worker_get_current ();
1238 pool_foreach (wrk, vcm->workers, ({
1239 if (current_wrk != wrk)
1240 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1244 vcl_send_app_detach (current_wrk);
1245 vppcom_disconnect_from_vpp ();
1246 vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
1248 vcl_elog_stop (vcm);
1251 * Free the heap and fix vcm
1253 heap = clib_mem_get_heap ();
1254 mi = mspace_mallinfo (heap);
1255 munmap (mspace_least_addr (heap), mi.arena);
1257 vcm = &_vppcom_main;
1262 vppcom_session_create (u8 proto, u8 is_nonblocking)
1264 vcl_worker_t *wrk = vcl_worker_get_current ();
1265 vcl_session_t *session;
1267 session = vcl_session_alloc (wrk);
1269 session->session_type = proto;
1270 session->session_state = STATE_CLOSED;
1271 session->vpp_handle = ~0;
1272 session->is_dgram = vcl_proto_is_dgram (proto);
1275 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
1277 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1278 is_nonblocking, session_index);
1280 VDBG (0, "created session %u", session->session_index);
1282 return vcl_session_handle (session);
1286 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * session,
1287 vcl_session_handle_t sh, u8 do_disconnect)
1289 vcl_session_state_t state;
1290 u32 next_sh, vep_sh;
1295 is_vep = session->is_vep;
1296 next_sh = session->vep.next_sh;
1297 vep_sh = session->vep.vep_sh;
1298 state = session->session_state;
1299 vpp_handle = session->vpp_handle;
1301 VDBG (1, "session %u [0x%llx] closing", session->session_index, vpp_handle);
1305 while (next_sh != ~0)
1307 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1308 if (PREDICT_FALSE (rv < 0))
1309 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1310 " failed! rv %d (%s)", vpp_handle, next_sh, vep_sh, rv,
1311 vppcom_retval_str (rv));
1313 next_sh = session->vep.next_sh;
1318 if (session->is_vep_session)
1320 rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, sh, 0);
1322 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1323 "failed! rv %d (%s)", session->session_index, vpp_handle,
1324 vep_sh, rv, vppcom_retval_str (rv));
1329 VDBG (1, "session %u [0x%llx] disconnect skipped",
1330 session->session_index, vpp_handle);
1334 if (state & STATE_LISTEN)
1336 rv = vppcom_session_unbind (sh);
1337 if (PREDICT_FALSE (rv < 0))
1338 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1339 "rv %d (%s)", session->session_index, vpp_handle, rv,
1340 vppcom_retval_str (rv));
1343 else if ((state & STATE_OPEN)
1344 || (vcl_session_is_connectable_listener (wrk, session)))
1346 rv = vppcom_session_disconnect (sh);
1347 if (PREDICT_FALSE (rv < 0))
1348 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1349 " rv %d (%s)", session->session_index, vpp_handle,
1350 rv, vppcom_retval_str (rv));
1352 else if (state == STATE_DISCONNECT)
1354 svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, session);
1355 vcl_send_session_reset_reply (mq, wrk->my_client_index,
1356 session->vpp_handle, 0);
1358 else if (state == STATE_DETACHED)
1360 /* Should not happen. VPP cleaned up before app confirmed close */
1361 VDBG (0, "vpp freed session %d before close", session->session_index);
1365 session->session_state = STATE_CLOSED;
1367 /* Session is removed only after vpp confirms the disconnect */
1371 vcl_session_table_del_vpp_handle (wrk, vpp_handle);
1373 vcl_session_free (wrk, session);
1374 vcl_evt (VCL_EVT_CLOSE, session, rv);
1380 vppcom_session_close (uint32_t session_handle)
1382 vcl_worker_t *wrk = vcl_worker_get_current ();
1383 vcl_session_t *session;
1385 session = vcl_session_get_w_handle (wrk, session_handle);
1387 return VPPCOM_EBADFD;
1388 return vcl_session_cleanup (wrk, session, session_handle,
1389 1 /* do_disconnect */ );
1393 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1395 vcl_worker_t *wrk = vcl_worker_get_current ();
1396 vcl_session_t *session = 0;
1399 return VPPCOM_EINVAL;
1401 session = vcl_session_get_w_handle (wrk, session_handle);
1403 return VPPCOM_EBADFD;
1405 if (session->is_vep)
1407 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1408 session->session_index);
1409 return VPPCOM_EBADFD;
1412 session->transport.is_ip4 = ep->is_ip4;
1414 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1415 sizeof (ip4_address_t));
1417 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1418 sizeof (ip6_address_t));
1419 session->transport.lcl_port = ep->port;
1421 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1422 "proto %s", session->session_index, session_handle,
1423 session->transport.is_ip4 ? "IPv4" : "IPv6",
1424 format_ip46_address, &session->transport.lcl_ip,
1425 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1426 clib_net_to_host_u16 (session->transport.lcl_port),
1427 vppcom_proto_str (session->session_type));
1428 vcl_evt (VCL_EVT_BIND, session);
1430 if (session->session_type == VPPCOM_PROTO_UDP)
1431 vppcom_session_listen (session_handle, 10);
1437 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1439 vcl_worker_t *wrk = vcl_worker_get_current ();
1440 vcl_session_t *listen_session = 0;
1441 u64 listen_vpp_handle;
1444 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1445 if (!listen_session || listen_session->is_vep)
1446 return VPPCOM_EBADFD;
1448 if (q_len == 0 || q_len == ~0)
1449 q_len = vcm->cfg.listen_queue_size;
1451 listen_vpp_handle = listen_session->vpp_handle;
1452 if (listen_session->session_state & STATE_LISTEN)
1454 VDBG (0, "session %u [0x%llx]: already in listen state!",
1455 listen_sh, listen_vpp_handle);
1459 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1462 * Send listen request to vpp and wait for reply
1464 vcl_send_session_listen (wrk, listen_session);
1465 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1467 vcm->cfg.session_timeout);
1469 if (PREDICT_FALSE (rv))
1471 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1472 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1473 listen_sh, listen_session->vpp_handle, rv,
1474 vppcom_retval_str (rv));
1482 vppcom_session_tls_add_cert (uint32_t session_handle, char *cert,
1486 vcl_worker_t *wrk = vcl_worker_get_current ();
1487 vcl_session_t *session = 0;
1489 session = vcl_session_get_w_handle (wrk, session_handle);
1491 return VPPCOM_EBADFD;
1493 if (cert_len == 0 || cert_len == ~0)
1494 return VPPCOM_EBADFD;
1497 * Send listen request to vpp and wait for reply
1499 vppcom_send_application_tls_cert_add (session, cert, cert_len);
1500 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1501 vcl_wait_for_app_state_change (STATE_APP_READY);
1507 vppcom_session_tls_add_key (uint32_t session_handle, char *key,
1511 vcl_worker_t *wrk = vcl_worker_get_current ();
1512 vcl_session_t *session = 0;
1514 session = vcl_session_get_w_handle (wrk, session_handle);
1516 return VPPCOM_EBADFD;
1518 if (key_len == 0 || key_len == ~0)
1519 return VPPCOM_EBADFD;
1521 vppcom_send_application_tls_key_add (session, key, key_len);
1522 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1523 vcl_wait_for_app_state_change (STATE_APP_READY);
1528 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1532 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1534 return VPPCOM_EBADFD;
1537 if ((ls->session_state != STATE_LISTEN)
1538 && (!vcl_session_is_connectable_listener (wrk, ls)))
1541 "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1542 " (%s)", ls->vpp_handle, ls->session_state,
1543 vppcom_session_state_str (ls->session_state));
1544 return VPPCOM_EBADFD;
1550 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1552 if (!strcmp (proto_str, "TCP"))
1553 *proto = VPPCOM_PROTO_TCP;
1554 else if (!strcmp (proto_str, "tcp"))
1555 *proto = VPPCOM_PROTO_TCP;
1556 else if (!strcmp (proto_str, "UDP"))
1557 *proto = VPPCOM_PROTO_UDP;
1558 else if (!strcmp (proto_str, "udp"))
1559 *proto = VPPCOM_PROTO_UDP;
1560 else if (!strcmp (proto_str, "TLS"))
1561 *proto = VPPCOM_PROTO_TLS;
1562 else if (!strcmp (proto_str, "tls"))
1563 *proto = VPPCOM_PROTO_TLS;
1564 else if (!strcmp (proto_str, "QUIC"))
1565 *proto = VPPCOM_PROTO_QUIC;
1566 else if (!strcmp (proto_str, "quic"))
1567 *proto = VPPCOM_PROTO_QUIC;
1574 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1577 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1578 vcl_worker_t *wrk = vcl_worker_get_current ();
1579 session_accepted_msg_t accepted_msg;
1580 vcl_session_t *listen_session = 0;
1581 vcl_session_t *client_session = 0;
1582 vcl_session_msg_t *evt;
1583 svm_msg_q_msg_t msg;
1588 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1589 if (!listen_session)
1590 return VPPCOM_EBADFD;
1592 listen_session_index = listen_session->session_index;
1593 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1596 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1598 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1599 accept_flags = evt->flags;
1600 accepted_msg = evt->accepted_msg;
1604 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1605 VCL_SESS_ATTR_NONBLOCK);
1608 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1609 return VPPCOM_EAGAIN;
1611 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1612 return VPPCOM_EAGAIN;
1614 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1615 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1617 vcl_handle_mq_event (wrk, e);
1618 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1621 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1622 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1628 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1629 listen_session_index);
1630 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1631 return VPPCOM_ECONNABORTED;
1633 listen_session = vcl_session_get (wrk, listen_session_index);
1634 client_session = vcl_session_get (wrk, client_session_index);
1636 if (flags & O_NONBLOCK)
1637 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1639 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1640 " flags %d, is_nonblocking %u", listen_session->session_index,
1641 listen_session->vpp_handle, client_session_index,
1642 client_session->vpp_handle, flags,
1643 VCL_SESS_ATTR_TEST (client_session->attr, VCL_SESS_ATTR_NONBLOCK));
1647 ep->is_ip4 = client_session->transport.is_ip4;
1648 ep->port = client_session->transport.rmt_port;
1649 if (client_session->transport.is_ip4)
1650 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1651 sizeof (ip4_address_t));
1653 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1654 sizeof (ip6_address_t));
1657 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1658 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1659 client_session_index, client_session->vpp_handle,
1660 format_ip46_address, &client_session->transport.rmt_ip,
1661 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1662 clib_net_to_host_u16 (client_session->transport.rmt_port),
1663 format_ip46_address, &client_session->transport.lcl_ip,
1664 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1665 clib_net_to_host_u16 (client_session->transport.lcl_port));
1666 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1667 client_session_index);
1670 * Session might have been closed already
1674 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1675 client_session->session_state = STATE_VPP_CLOSING;
1676 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1677 client_session->session_state = STATE_DISCONNECT;
1679 return vcl_session_handle (client_session);
1683 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1685 vcl_worker_t *wrk = vcl_worker_get_current ();
1686 vcl_session_t *session = 0;
1690 session = vcl_session_get_w_handle (wrk, session_handle);
1692 return VPPCOM_EBADFD;
1693 session_index = session->session_index;
1695 if (PREDICT_FALSE (session->is_vep))
1697 VDBG (0, "ERROR: cannot connect epoll session %u!",
1698 session->session_index);
1699 return VPPCOM_EBADFD;
1702 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1704 VDBG (0, "session handle %u [0x%llx]: session already "
1705 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1706 session_handle, session->vpp_handle,
1707 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1708 &session->transport.rmt_ip, session->transport.is_ip4 ?
1709 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1710 clib_net_to_host_u16 (session->transport.rmt_port),
1711 vppcom_proto_str (session->session_type), session->session_state,
1712 vppcom_session_state_str (session->session_state));
1716 /* Attempt to connect a connectionless listener */
1717 if (PREDICT_FALSE (session->session_state & STATE_LISTEN))
1719 if (session->session_type != VPPCOM_PROTO_UDP)
1720 return VPPCOM_EINVAL;
1721 vcl_send_session_unlisten (wrk, session);
1722 session->session_state = STATE_CLOSED;
1725 session->transport.is_ip4 = server_ep->is_ip4;
1726 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1727 session->transport.rmt_port = server_ep->port;
1728 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1729 session->flags |= VCL_SESSION_F_CONNECTED;
1731 VDBG (0, "session handle %u (%s): connecting to peer %s %U "
1732 "port %d proto %s", session_handle,
1733 vppcom_session_state_str (session->session_state),
1734 session->transport.is_ip4 ? "IPv4" : "IPv6",
1735 format_ip46_address,
1736 &session->transport.rmt_ip, session->transport.is_ip4 ?
1737 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1738 clib_net_to_host_u16 (session->transport.rmt_port),
1739 vppcom_proto_str (session->session_type));
1741 vcl_send_session_connect (wrk, session);
1743 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK))
1744 return VPPCOM_EINPROGRESS;
1747 * Wait for reply from vpp if blocking
1749 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1750 vcm->cfg.session_timeout);
1752 session = vcl_session_get (wrk, session_index);
1753 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1754 session->vpp_handle, rv ? "failed" : "succeeded");
1760 vppcom_session_stream_connect (uint32_t session_handle,
1761 uint32_t parent_session_handle)
1763 vcl_worker_t *wrk = vcl_worker_get_current ();
1764 vcl_session_t *session, *parent_session;
1765 u32 session_index, parent_session_index;
1768 session = vcl_session_get_w_handle (wrk, session_handle);
1770 return VPPCOM_EBADFD;
1771 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1772 if (!parent_session)
1773 return VPPCOM_EBADFD;
1775 session_index = session->session_index;
1776 parent_session_index = parent_session->session_index;
1777 if (PREDICT_FALSE (session->is_vep))
1779 VDBG (0, "ERROR: cannot connect epoll session %u!",
1780 session->session_index);
1781 return VPPCOM_EBADFD;
1784 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1786 VDBG (0, "session handle %u [0x%llx]: session already "
1787 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1788 session_handle, session->vpp_handle,
1789 parent_session_handle, parent_session->vpp_handle,
1790 vppcom_proto_str (session->session_type), session->session_state,
1791 vppcom_session_state_str (session->session_state));
1795 /* Connect to quic session specifics */
1796 session->transport.is_ip4 = parent_session->transport.is_ip4;
1797 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1798 session->transport.rmt_port = 0;
1799 session->parent_handle = parent_session->vpp_handle;
1801 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1802 session_handle, parent_session_handle, parent_session->vpp_handle);
1805 * Send connect request and wait for reply from vpp
1807 vcl_send_session_connect (wrk, session);
1808 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1809 vcm->cfg.session_timeout);
1811 session->listener_index = parent_session_index;
1812 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1814 parent_session->n_accepted_sessions++;
1816 session = vcl_session_get (wrk, session_index);
1817 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1818 session->vpp_handle, rv ? "failed" : "succeeded");
1824 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1826 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1830 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1833 vcl_worker_t *wrk = vcl_worker_get_current ();
1834 int n_read = 0, is_nonblocking;
1835 vcl_session_t *s = 0;
1836 svm_fifo_t *rx_fifo;
1837 svm_msg_q_msg_t msg;
1842 if (PREDICT_FALSE (!buf))
1843 return VPPCOM_EINVAL;
1845 s = vcl_session_get_w_handle (wrk, session_handle);
1846 if (PREDICT_FALSE (!s || s->is_vep))
1847 return VPPCOM_EBADFD;
1849 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1851 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1852 s->session_index, s->vpp_handle, s->session_state,
1853 vppcom_session_state_str (s->session_state));
1854 return vcl_session_closed_error (s);
1857 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1858 is_ct = vcl_session_is_ct (s);
1859 mq = wrk->app_event_queue;
1860 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1863 if (svm_fifo_is_empty_cons (rx_fifo))
1867 if (vcl_session_is_closing (s))
1868 return vcl_session_closing_error (s);
1869 svm_fifo_unset_event (s->rx_fifo);
1870 return VPPCOM_EWOULDBLOCK;
1872 while (svm_fifo_is_empty_cons (rx_fifo))
1874 if (vcl_session_is_closing (s))
1875 return vcl_session_closing_error (s);
1877 svm_fifo_unset_event (s->rx_fifo);
1878 svm_msg_q_lock (mq);
1879 if (svm_msg_q_is_empty (mq))
1880 svm_msg_q_wait (mq);
1882 svm_msg_q_sub_w_lock (mq, &msg);
1883 e = svm_msg_q_msg_data (mq, &msg);
1884 svm_msg_q_unlock (mq);
1885 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1886 vcl_handle_mq_event (wrk, e);
1887 svm_msg_q_free_msg (mq, &msg);
1892 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1894 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1896 if (svm_fifo_is_empty_cons (rx_fifo))
1897 svm_fifo_unset_event (s->rx_fifo);
1899 /* Cut-through sessions might request tx notifications on rx fifos */
1900 if (PREDICT_FALSE (rx_fifo->want_deq_ntf))
1902 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1903 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1904 svm_fifo_reset_has_deq_ntf (s->rx_fifo);
1907 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1908 s->vpp_handle, n_read, rx_fifo);
1914 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1916 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1920 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1922 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1926 vppcom_session_read_segments (uint32_t session_handle,
1927 vppcom_data_segments_t ds)
1929 vcl_worker_t *wrk = vcl_worker_get_current ();
1930 int n_read = 0, is_nonblocking;
1931 vcl_session_t *s = 0;
1932 svm_fifo_t *rx_fifo;
1933 svm_msg_q_msg_t msg;
1938 s = vcl_session_get_w_handle (wrk, session_handle);
1939 if (PREDICT_FALSE (!s || s->is_vep))
1940 return VPPCOM_EBADFD;
1942 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1943 return vcl_session_closed_error (s);
1945 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1946 is_ct = vcl_session_is_ct (s);
1947 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1948 rx_fifo = s->rx_fifo;
1952 svm_fifo_unset_event (s->rx_fifo);
1954 if (svm_fifo_is_empty_cons (rx_fifo))
1958 svm_fifo_unset_event (rx_fifo);
1959 return VPPCOM_EWOULDBLOCK;
1961 while (svm_fifo_is_empty_cons (rx_fifo))
1963 if (vcl_session_is_closing (s))
1964 return vcl_session_closing_error (s);
1966 svm_fifo_unset_event (rx_fifo);
1967 svm_msg_q_lock (mq);
1968 if (svm_msg_q_is_empty (mq))
1969 svm_msg_q_wait (mq);
1971 svm_msg_q_sub_w_lock (mq, &msg);
1972 e = svm_msg_q_msg_data (mq, &msg);
1973 svm_msg_q_unlock (mq);
1974 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1975 vcl_handle_mq_event (wrk, e);
1976 svm_msg_q_free_msg (mq, &msg);
1980 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_seg_t *) ds);
1981 svm_fifo_unset_event (rx_fifo);
1987 vppcom_session_free_segments (uint32_t session_handle,
1988 vppcom_data_segments_t ds)
1990 vcl_worker_t *wrk = vcl_worker_get_current ();
1993 s = vcl_session_get_w_handle (wrk, session_handle);
1994 if (PREDICT_FALSE (!s || s->is_vep))
1997 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_seg_t *) ds);
2001 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
2003 u32 first_copy = clib_min (ds[0].len, max_bytes);
2004 clib_memcpy_fast (buf, ds[0].data, first_copy);
2005 if (first_copy < max_bytes)
2007 clib_memcpy_fast (buf + first_copy, ds[1].data,
2008 clib_min (ds[1].len, max_bytes - first_copy));
2014 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
2016 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
2020 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2022 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2024 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2030 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2031 size_t n, u8 is_flush, u8 is_dgram)
2033 int n_write, is_nonblocking;
2034 session_evt_type_t et;
2035 svm_msg_q_msg_t msg;
2036 svm_fifo_t *tx_fifo;
2041 if (PREDICT_FALSE (!buf || n == 0))
2042 return VPPCOM_EINVAL;
2044 if (PREDICT_FALSE (s->is_vep))
2046 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2047 " session!", s->session_index, s->vpp_handle);
2048 return VPPCOM_EBADFD;
2051 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2053 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2054 s->session_index, s->vpp_handle, s->session_state,
2055 vppcom_session_state_str (s->session_state));
2056 return vcl_session_closed_error (s);;
2059 is_ct = vcl_session_is_ct (s);
2060 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2061 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
2063 mq = wrk->app_event_queue;
2064 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2068 return VPPCOM_EWOULDBLOCK;
2070 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2072 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2073 if (vcl_session_is_closing (s))
2074 return vcl_session_closing_error (s);
2075 svm_msg_q_lock (mq);
2076 if (svm_msg_q_is_empty (mq))
2077 svm_msg_q_wait (mq);
2079 svm_msg_q_sub_w_lock (mq, &msg);
2080 e = svm_msg_q_msg_data (mq, &msg);
2081 svm_msg_q_unlock (mq);
2083 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
2084 vcl_handle_mq_event (wrk, e);
2085 svm_msg_q_free_msg (mq, &msg);
2089 et = SESSION_IO_EVT_TX;
2090 if (is_flush && !is_ct)
2091 et = SESSION_IO_EVT_TX_FLUSH;
2094 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2095 s->vpp_evt_q, buf, n, et,
2096 0 /* do_evt */ , SVM_Q_WAIT);
2098 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2099 0 /* do_evt */ , SVM_Q_WAIT);
2101 if (svm_fifo_set_event (s->tx_fifo))
2102 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
2105 ASSERT (n_write > 0);
2107 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2108 s->vpp_handle, n_write);
2114 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2116 vcl_worker_t *wrk = vcl_worker_get_current ();
2119 s = vcl_session_get_w_handle (wrk, session_handle);
2120 if (PREDICT_FALSE (!s))
2121 return VPPCOM_EBADFD;
2123 return vppcom_session_write_inline (wrk, s, buf, n,
2124 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2128 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2130 vcl_worker_t *wrk = vcl_worker_get_current ();
2133 s = vcl_session_get_w_handle (wrk, session_handle);
2134 if (PREDICT_FALSE (!s))
2135 return VPPCOM_EBADFD;
2137 return vppcom_session_write_inline (wrk, s, buf, n,
2138 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2141 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2142 if (PREDICT_FALSE (!_s->rx_fifo)) \
2144 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2146 if (!vcl_session_is_ct (_s)) \
2148 svm_fifo_unset_event (_s->rx_fifo); \
2149 if (svm_fifo_is_empty (_s->rx_fifo)) \
2152 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2154 svm_fifo_unset_event (_s->ct_rx_fifo); \
2155 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2161 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2162 unsigned long n_bits, unsigned long *read_map,
2163 unsigned long *write_map,
2164 unsigned long *except_map, u32 * bits_set)
2166 session_disconnected_msg_t *disconnected_msg;
2167 session_connected_msg_t *connected_msg;
2168 vcl_session_t *session;
2171 switch (e->event_type)
2173 case SESSION_IO_EVT_RX:
2174 sid = e->session_index;
2175 session = vcl_session_get (wrk, sid);
2176 if (!session || !vcl_session_is_open (session))
2178 vcl_fifo_rx_evt_valid_or_break (session);
2179 if (sid < n_bits && read_map)
2181 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2185 case SESSION_IO_EVT_TX:
2186 sid = e->session_index;
2187 session = vcl_session_get (wrk, sid);
2188 if (!session || !vcl_session_is_open (session))
2190 if (sid < n_bits && write_map)
2192 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2196 case SESSION_CTRL_EVT_ACCEPTED:
2197 session = vcl_session_accepted (wrk,
2198 (session_accepted_msg_t *) e->data);
2201 sid = session->session_index;
2202 if (sid < n_bits && read_map)
2204 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2208 case SESSION_CTRL_EVT_CONNECTED:
2209 connected_msg = (session_connected_msg_t *) e->data;
2210 sid = vcl_session_connected_handler (wrk, connected_msg);
2211 if (sid == VCL_INVALID_SESSION_INDEX)
2213 if (sid < n_bits && write_map)
2215 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2219 case SESSION_CTRL_EVT_DISCONNECTED:
2220 disconnected_msg = (session_disconnected_msg_t *) e->data;
2221 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2224 sid = session->session_index;
2225 if (sid < n_bits && except_map)
2227 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2231 case SESSION_CTRL_EVT_RESET:
2232 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2233 if (sid < n_bits && except_map)
2235 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2239 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2240 vcl_session_unlisten_reply_handler (wrk, e->data);
2242 case SESSION_CTRL_EVT_MIGRATED:
2243 vcl_session_migrated_handler (wrk, e->data);
2245 case SESSION_CTRL_EVT_CLEANUP:
2246 vcl_session_cleanup_handler (wrk, e->data);
2248 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2249 vcl_session_worker_update_reply_handler (wrk, e->data);
2251 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2252 vcl_session_req_worker_update_handler (wrk, e->data);
2254 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2255 vcl_session_app_add_segment_handler (wrk, e->data);
2257 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2258 vcl_session_app_del_segment_handler (wrk, e->data);
2261 clib_warning ("unhandled: %u", e->event_type);
2267 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2268 unsigned long n_bits, unsigned long *read_map,
2269 unsigned long *write_map, unsigned long *except_map,
2270 double time_to_wait, u32 * bits_set)
2272 svm_msg_q_msg_t *msg;
2276 svm_msg_q_lock (mq);
2277 if (svm_msg_q_is_empty (mq))
2281 svm_msg_q_unlock (mq);
2287 svm_msg_q_unlock (mq);
2290 else if (time_to_wait < 0)
2292 svm_msg_q_wait (mq);
2296 if (svm_msg_q_timedwait (mq, time_to_wait))
2298 svm_msg_q_unlock (mq);
2303 vcl_mq_dequeue_batch (wrk, mq, ~0);
2304 svm_msg_q_unlock (mq);
2306 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2308 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2309 e = svm_msg_q_msg_data (mq, msg);
2310 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2311 except_map, bits_set);
2312 svm_msg_q_free_msg (mq, msg);
2314 vec_reset_length (wrk->mq_msg_vector);
2315 vcl_handle_pending_wrk_updates (wrk);
2320 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2321 vcl_si_set * read_map, vcl_si_set * write_map,
2322 vcl_si_set * except_map, double time_to_wait,
2325 double wait = 0, start = 0;
2329 wait = time_to_wait;
2330 start = clib_time_now (&wrk->clib_time);
2335 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2336 write_map, except_map, wait, bits_set);
2342 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2350 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2351 vcl_si_set * read_map, vcl_si_set * write_map,
2352 vcl_si_set * except_map, double time_to_wait,
2355 vcl_mq_evt_conn_t *mqc;
2356 int __clib_unused n_read;
2360 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2361 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2362 vec_len (wrk->mq_events), time_to_wait);
2363 for (i = 0; i < n_mq_evts; i++)
2365 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2366 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2367 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2368 except_map, 0, bits_set);
2371 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2375 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2376 vcl_si_set * except_map, double time_to_wait)
2378 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2379 vcl_worker_t *wrk = vcl_worker_get_current ();
2380 vcl_session_t *session = 0;
2383 if (n_bits && read_map)
2385 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2386 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2387 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2388 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2390 if (n_bits && write_map)
2392 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2393 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2394 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2395 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2397 if (n_bits && except_map)
2399 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2400 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2401 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2402 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2412 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2413 if (!(session = vcl_session_get (wrk, sid)))
2415 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2420 if (vcl_session_write_ready (session))
2422 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2426 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2433 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2434 if (!(session = vcl_session_get (wrk, sid)))
2436 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2441 if (vcl_session_read_ready (session))
2443 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2451 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2453 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2454 read_map, write_map, except_map, &bits_set);
2456 vec_reset_length (wrk->unhandled_evts_vector);
2458 if (vcm->cfg.use_mq_eventfd)
2459 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2460 time_to_wait, &bits_set);
2462 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2463 time_to_wait, &bits_set);
2469 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2471 vcl_session_t *session;
2472 vppcom_epoll_t *vep;
2473 u32 sh = vep_handle;
2475 if (VPPCOM_DEBUG <= 2)
2478 session = vcl_session_get_w_handle (wrk, vep_handle);
2479 if (PREDICT_FALSE (!session))
2481 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2484 if (PREDICT_FALSE (!session->is_vep))
2486 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2489 vep = &session->vep;
2490 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2493 " is_vep_session = %u\n"
2494 " next_sh = 0x%x (%u)\n"
2495 "}\n", vep_handle, session->is_vep, session->is_vep_session,
2496 vep->next_sh, vep->next_sh);
2498 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2500 session = vcl_session_get_w_handle (wrk, sh);
2501 if (PREDICT_FALSE (!session))
2503 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2506 if (PREDICT_FALSE (session->is_vep))
2508 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2510 else if (PREDICT_FALSE (!session->is_vep_session))
2512 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2515 vep = &session->vep;
2516 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2517 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2518 sh, session->vep.vep_sh, vep_handle);
2519 if (session->is_vep_session)
2521 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2523 " next_sh = 0x%x (%u)\n"
2524 " prev_sh = 0x%x (%u)\n"
2525 " vep_sh = 0x%x (%u)\n"
2526 " ev.events = 0x%x\n"
2527 " ev.data.u64 = 0x%llx\n"
2530 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2531 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2532 vep->ev.data.u64, vep->et_mask);
2537 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2541 vppcom_epoll_create (void)
2543 vcl_worker_t *wrk = vcl_worker_get_current ();
2544 vcl_session_t *vep_session;
2546 vep_session = vcl_session_alloc (wrk);
2548 vep_session->is_vep = 1;
2549 vep_session->vep.vep_sh = ~0;
2550 vep_session->vep.next_sh = ~0;
2551 vep_session->vep.prev_sh = ~0;
2552 vep_session->vpp_handle = ~0;
2554 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2555 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2557 return vcl_session_handle (vep_session);
2561 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2562 struct epoll_event *event)
2564 vcl_worker_t *wrk = vcl_worker_get_current ();
2565 vcl_session_t *vep_session;
2566 vcl_session_t *session;
2569 if (vep_handle == session_handle)
2571 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2572 return VPPCOM_EINVAL;
2575 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2576 if (PREDICT_FALSE (!vep_session))
2578 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2579 return VPPCOM_EBADFD;
2581 if (PREDICT_FALSE (!vep_session->is_vep))
2583 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2584 return VPPCOM_EINVAL;
2587 ASSERT (vep_session->vep.vep_sh == ~0);
2588 ASSERT (vep_session->vep.prev_sh == ~0);
2590 session = vcl_session_get_w_handle (wrk, session_handle);
2591 if (PREDICT_FALSE (!session))
2593 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2594 return VPPCOM_EBADFD;
2596 if (PREDICT_FALSE (session->is_vep))
2598 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2599 return VPPCOM_EINVAL;
2605 if (PREDICT_FALSE (!event))
2607 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2608 return VPPCOM_EINVAL;
2610 if (vep_session->vep.next_sh != ~0)
2612 vcl_session_t *next_session;
2613 next_session = vcl_session_get_w_handle (wrk,
2614 vep_session->vep.next_sh);
2615 if (PREDICT_FALSE (!next_session))
2617 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2618 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2619 return VPPCOM_EBADFD;
2621 ASSERT (next_session->vep.prev_sh == vep_handle);
2622 next_session->vep.prev_sh = session_handle;
2624 session->vep.next_sh = vep_session->vep.next_sh;
2625 session->vep.prev_sh = vep_handle;
2626 session->vep.vep_sh = vep_handle;
2627 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2628 session->vep.ev = *event;
2629 session->is_vep = 0;
2630 session->is_vep_session = 1;
2631 vep_session->vep.next_sh = session_handle;
2633 if (session->tx_fifo)
2634 svm_fifo_add_want_deq_ntf (session->tx_fifo,
2635 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2637 /* Generate EPOLLOUT if tx fifo not full */
2638 if ((event->events & EPOLLOUT) &&
2639 (vcl_session_write_ready (session) > 0))
2641 session_event_t e = { 0 };
2642 e.event_type = SESSION_IO_EVT_TX;
2643 e.session_index = session->session_index;
2644 vec_add1 (wrk->unhandled_evts_vector, e);
2646 /* Generate EPOLLIN if rx fifo has data */
2647 if ((event->events & EPOLLIN) && (vcl_session_read_ready (session) > 0))
2649 session_event_t e = { 0 };
2650 e.event_type = SESSION_IO_EVT_RX;
2651 e.session_index = session->session_index;
2652 vec_add1 (wrk->unhandled_evts_vector, e);
2654 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2655 vep_handle, session_handle, event->events, event->data.u64);
2656 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2660 if (PREDICT_FALSE (!event))
2662 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2666 else if (PREDICT_FALSE (!session->is_vep_session))
2668 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2672 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2674 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2675 session_handle, session->vep.vep_sh, vep_handle);
2680 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2681 if ((event->events & EPOLLOUT) &&
2682 !(session->vep.ev.events & EPOLLOUT) &&
2683 (vcl_session_write_ready (session) > 0))
2685 session_event_t e = { 0 };
2686 e.event_type = SESSION_IO_EVT_TX;
2687 e.session_index = session->session_index;
2688 vec_add1 (wrk->unhandled_evts_vector, e);
2690 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2691 session->vep.ev = *event;
2692 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2693 vep_handle, session_handle, event->events, event->data.u64);
2697 if (PREDICT_FALSE (!session->is_vep_session))
2699 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2703 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2705 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2706 session_handle, session->vep.vep_sh, vep_handle);
2711 if (session->vep.prev_sh == vep_handle)
2712 vep_session->vep.next_sh = session->vep.next_sh;
2715 vcl_session_t *prev_session;
2716 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2717 if (PREDICT_FALSE (!prev_session))
2719 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2720 session->vep.prev_sh, session_handle);
2721 return VPPCOM_EBADFD;
2723 ASSERT (prev_session->vep.next_sh == session_handle);
2724 prev_session->vep.next_sh = session->vep.next_sh;
2726 if (session->vep.next_sh != ~0)
2728 vcl_session_t *next_session;
2729 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2730 if (PREDICT_FALSE (!next_session))
2732 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2733 session->vep.next_sh, session_handle);
2734 return VPPCOM_EBADFD;
2736 ASSERT (next_session->vep.prev_sh == session_handle);
2737 next_session->vep.prev_sh = session->vep.prev_sh;
2740 memset (&session->vep, 0, sizeof (session->vep));
2741 session->vep.next_sh = ~0;
2742 session->vep.prev_sh = ~0;
2743 session->vep.vep_sh = ~0;
2744 session->is_vep_session = 0;
2746 if (session->tx_fifo)
2747 svm_fifo_del_want_deq_ntf (session->tx_fifo, SVM_FIFO_NO_DEQ_NOTIF);
2749 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2751 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2755 VDBG (0, "Invalid operation (%d)!", op);
2759 vep_verify_epoll_chain (wrk, vep_handle);
2766 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2767 struct epoll_event *events, u32 * num_ev)
2769 session_disconnected_msg_t *disconnected_msg;
2770 session_connected_msg_t *connected_msg;
2771 u32 sid = ~0, session_events;
2772 u64 session_evt_data = ~0;
2773 vcl_session_t *session;
2776 switch (e->event_type)
2778 case SESSION_IO_EVT_RX:
2779 sid = e->session_index;
2780 session = vcl_session_get (wrk, sid);
2781 if (vcl_session_is_closed (session))
2783 vcl_fifo_rx_evt_valid_or_break (session);
2784 session_events = session->vep.ev.events;
2785 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2788 events[*num_ev].events |= EPOLLIN;
2789 session_evt_data = session->vep.ev.data.u64;
2790 session->has_rx_evt = 1;
2792 case SESSION_IO_EVT_TX:
2793 sid = e->session_index;
2794 session = vcl_session_get (wrk, sid);
2795 if (vcl_session_is_closed (session))
2797 session_events = session->vep.ev.events;
2798 if (!(EPOLLOUT & session_events))
2801 events[*num_ev].events |= EPOLLOUT;
2802 session_evt_data = session->vep.ev.data.u64;
2803 svm_fifo_reset_has_deq_ntf (session->tx_fifo);
2805 case SESSION_CTRL_EVT_ACCEPTED:
2806 session = vcl_session_accepted (wrk,
2807 (session_accepted_msg_t *) e->data);
2811 session_events = session->vep.ev.events;
2812 if (!(EPOLLIN & session_events))
2816 events[*num_ev].events |= EPOLLIN;
2817 session_evt_data = session->vep.ev.data.u64;
2819 case SESSION_CTRL_EVT_CONNECTED:
2820 connected_msg = (session_connected_msg_t *) e->data;
2821 sid = vcl_session_connected_handler (wrk, connected_msg);
2822 /* Generate EPOLLOUT because there's no connected event */
2823 session = vcl_session_get (wrk, sid);
2824 if (vcl_session_is_closed (session))
2826 session_events = session->vep.ev.events;
2827 if (!(EPOLLOUT & session_events))
2830 events[*num_ev].events |= EPOLLOUT;
2831 session_evt_data = session->vep.ev.data.u64;
2832 if (session->session_state & STATE_DETACHED)
2833 events[*num_ev].events |= EPOLLHUP;
2835 case SESSION_CTRL_EVT_DISCONNECTED:
2836 disconnected_msg = (session_disconnected_msg_t *) e->data;
2837 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2838 if (vcl_session_is_closed (session))
2840 session_events = session->vep.ev.events;
2842 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2843 session_evt_data = session->vep.ev.data.u64;
2845 case SESSION_CTRL_EVT_RESET:
2846 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2847 session = vcl_session_get (wrk, sid);
2848 if (vcl_session_is_closed (session))
2850 session_events = session->vep.ev.events;
2852 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2853 session_evt_data = session->vep.ev.data.u64;
2855 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2856 vcl_session_unlisten_reply_handler (wrk, e->data);
2858 case SESSION_CTRL_EVT_MIGRATED:
2859 vcl_session_migrated_handler (wrk, e->data);
2861 case SESSION_CTRL_EVT_CLEANUP:
2862 vcl_session_cleanup_handler (wrk, e->data);
2864 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2865 vcl_session_req_worker_update_handler (wrk, e->data);
2867 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2868 vcl_session_worker_update_reply_handler (wrk, e->data);
2870 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2871 vcl_session_app_add_segment_handler (wrk, e->data);
2873 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2874 vcl_session_app_del_segment_handler (wrk, e->data);
2877 VDBG (0, "unhandled: %u", e->event_type);
2883 events[*num_ev].data.u64 = session_evt_data;
2884 if (EPOLLONESHOT & session_events)
2886 session = vcl_session_get (wrk, sid);
2887 session->vep.ev.events = 0;
2894 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2895 struct epoll_event *events, u32 maxevents,
2896 double wait_for_time, u32 * num_ev)
2898 svm_msg_q_msg_t *msg;
2902 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2903 goto handle_dequeued;
2905 svm_msg_q_lock (mq);
2906 if (svm_msg_q_is_empty (mq))
2910 svm_msg_q_unlock (mq);
2913 else if (wait_for_time < 0)
2915 svm_msg_q_wait (mq);
2919 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2921 svm_msg_q_unlock (mq);
2926 ASSERT (maxevents > *num_ev);
2927 vcl_mq_dequeue_batch (wrk, mq, ~0);
2928 svm_msg_q_unlock (mq);
2931 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2933 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2934 e = svm_msg_q_msg_data (mq, msg);
2935 if (*num_ev < maxevents)
2936 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2938 vcl_handle_mq_event (wrk, e);
2939 svm_msg_q_free_msg (mq, msg);
2941 vec_reset_length (wrk->mq_msg_vector);
2942 vcl_handle_pending_wrk_updates (wrk);
2947 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2948 int maxevents, u32 n_evts, double wait_for_time)
2950 double wait = 0, start = 0, now;
2954 wait = wait_for_time;
2955 start = clib_time_now (&wrk->clib_time);
2960 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2967 now = clib_time_now (&wrk->clib_time);
2968 wait -= now - start;
2977 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2978 int maxevents, u32 n_evts, double wait_for_time)
2980 vcl_mq_evt_conn_t *mqc;
2981 int __clib_unused n_read;
2985 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2987 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2988 vec_len (wrk->mq_events), wait_for_time);
2989 for (i = 0; i < n_mq_evts; i++)
2991 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2992 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2993 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
2995 if (!n_evts && n_mq_evts > 0)
2998 return (int) n_evts;
3002 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3003 int maxevents, double wait_for_time)
3005 vcl_worker_t *wrk = vcl_worker_get_current ();
3006 vcl_session_t *vep_session;
3010 if (PREDICT_FALSE (maxevents <= 0))
3012 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3013 return VPPCOM_EINVAL;
3016 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3018 return VPPCOM_EBADFD;
3020 if (PREDICT_FALSE (!vep_session->is_vep))
3022 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3023 return VPPCOM_EINVAL;
3026 memset (events, 0, sizeof (*events) * maxevents);
3028 if (vec_len (wrk->unhandled_evts_vector))
3030 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3032 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3034 if (n_evts == maxevents)
3036 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3040 vec_reset_length (wrk->unhandled_evts_vector);
3043 if (vcm->cfg.use_mq_eventfd)
3044 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3047 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3052 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3053 void *buffer, uint32_t * buflen)
3055 vcl_worker_t *wrk = vcl_worker_get_current ();
3056 vcl_session_t *session;
3058 u32 *flags = buffer, tmp_flags = 0;
3059 vppcom_endpt_t *ep = buffer;
3061 session = vcl_session_get_w_handle (wrk, session_handle);
3063 return VPPCOM_EBADFD;
3067 case VPPCOM_ATTR_GET_NREAD:
3068 rv = vcl_session_read_ready (session);
3069 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3073 case VPPCOM_ATTR_GET_NWRITE:
3074 rv = vcl_session_write_ready (session);
3075 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3079 case VPPCOM_ATTR_GET_FLAGS:
3080 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3082 *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr,
3083 VCL_SESS_ATTR_NONBLOCK));
3084 *buflen = sizeof (*flags);
3085 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3086 "is_nonblocking = %u", session_handle, *flags,
3087 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3093 case VPPCOM_ATTR_SET_FLAGS:
3094 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3096 if (*flags & O_NONBLOCK)
3097 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
3099 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
3101 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3102 " is_nonblocking = %u", session_handle, *flags,
3103 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3109 case VPPCOM_ATTR_GET_PEER_ADDR:
3110 if (PREDICT_TRUE (buffer && buflen &&
3111 (*buflen >= sizeof (*ep)) && ep->ip))
3113 ep->is_ip4 = session->transport.is_ip4;
3114 ep->port = session->transport.rmt_port;
3115 if (session->transport.is_ip4)
3116 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3117 sizeof (ip4_address_t));
3119 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3120 sizeof (ip6_address_t));
3121 *buflen = sizeof (*ep);
3122 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3123 "addr = %U, port %u", session_handle, ep->is_ip4,
3124 format_ip46_address, &session->transport.rmt_ip,
3125 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3126 clib_net_to_host_u16 (ep->port));
3132 case VPPCOM_ATTR_GET_LCL_ADDR:
3133 if (PREDICT_TRUE (buffer && buflen &&
3134 (*buflen >= sizeof (*ep)) && ep->ip))
3136 ep->is_ip4 = session->transport.is_ip4;
3137 ep->port = session->transport.lcl_port;
3138 if (session->transport.is_ip4)
3139 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3140 sizeof (ip4_address_t));
3142 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3143 sizeof (ip6_address_t));
3144 *buflen = sizeof (*ep);
3145 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3146 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3147 &session->transport.lcl_ip,
3148 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3149 clib_net_to_host_u16 (ep->port));
3155 case VPPCOM_ATTR_SET_LCL_ADDR:
3156 if (PREDICT_TRUE (buffer && buflen &&
3157 (*buflen >= sizeof (*ep)) && ep->ip))
3159 session->transport.is_ip4 = ep->is_ip4;
3160 session->transport.lcl_port = ep->port;
3161 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3162 *buflen = sizeof (*ep);
3163 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3164 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3165 &session->transport.lcl_ip,
3166 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3167 clib_net_to_host_u16 (ep->port));
3173 case VPPCOM_ATTR_GET_LIBC_EPFD:
3174 rv = session->libc_epfd;
3175 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3178 case VPPCOM_ATTR_SET_LIBC_EPFD:
3179 if (PREDICT_TRUE (buffer && buflen &&
3180 (*buflen == sizeof (session->libc_epfd))))
3182 session->libc_epfd = *(int *) buffer;
3183 *buflen = sizeof (session->libc_epfd);
3185 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3186 session->libc_epfd, *buflen);
3192 case VPPCOM_ATTR_GET_PROTOCOL:
3193 if (buffer && buflen && (*buflen >= sizeof (int)))
3195 *(int *) buffer = session->session_type;
3196 *buflen = sizeof (int);
3198 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3199 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3205 case VPPCOM_ATTR_GET_LISTEN:
3206 if (buffer && buflen && (*buflen >= sizeof (int)))
3208 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3209 VCL_SESS_ATTR_LISTEN);
3210 *buflen = sizeof (int);
3212 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3219 case VPPCOM_ATTR_GET_ERROR:
3220 if (buffer && buflen && (*buflen >= sizeof (int)))
3222 *(int *) buffer = 0;
3223 *buflen = sizeof (int);
3225 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3226 *(int *) buffer, *buflen);
3232 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3233 if (buffer && buflen && (*buflen >= sizeof (u32)))
3237 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3239 svm_fifo_size (session->tx_fifo) :
3240 vcm->cfg.tx_fifo_size);
3241 *buflen = sizeof (u32);
3243 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3244 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3251 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3252 if (buffer && buflen && (*buflen == sizeof (u32)))
3255 session->sndbuf_size = *(u32 *) buffer;
3256 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3257 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3264 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3265 if (buffer && buflen && (*buflen >= sizeof (u32)))
3269 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3271 svm_fifo_size (session->rx_fifo) :
3272 vcm->cfg.rx_fifo_size);
3273 *buflen = sizeof (u32);
3275 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3276 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3282 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3283 if (buffer && buflen && (*buflen == sizeof (u32)))
3286 session->rcvbuf_size = *(u32 *) buffer;
3287 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3288 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3295 case VPPCOM_ATTR_GET_REUSEADDR:
3296 if (buffer && buflen && (*buflen >= sizeof (int)))
3299 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3300 VCL_SESS_ATTR_REUSEADDR);
3301 *buflen = sizeof (int);
3303 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3304 *(int *) buffer, *buflen);
3310 case VPPCOM_ATTR_SET_REUSEADDR:
3311 if (buffer && buflen && (*buflen == sizeof (int)) &&
3312 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3315 if (*(int *) buffer)
3316 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
3318 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
3320 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3321 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEADDR),
3328 case VPPCOM_ATTR_GET_REUSEPORT:
3329 if (buffer && buflen && (*buflen >= sizeof (int)))
3332 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3333 VCL_SESS_ATTR_REUSEPORT);
3334 *buflen = sizeof (int);
3336 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3337 *(int *) buffer, *buflen);
3343 case VPPCOM_ATTR_SET_REUSEPORT:
3344 if (buffer && buflen && (*buflen == sizeof (int)) &&
3345 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3348 if (*(int *) buffer)
3349 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
3351 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
3353 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3354 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEPORT),
3361 case VPPCOM_ATTR_GET_BROADCAST:
3362 if (buffer && buflen && (*buflen >= sizeof (int)))
3365 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3366 VCL_SESS_ATTR_BROADCAST);
3367 *buflen = sizeof (int);
3369 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3370 *(int *) buffer, *buflen);
3376 case VPPCOM_ATTR_SET_BROADCAST:
3377 if (buffer && buflen && (*buflen == sizeof (int)))
3380 if (*(int *) buffer)
3381 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
3383 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
3385 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3386 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_BROADCAST),
3393 case VPPCOM_ATTR_GET_V6ONLY:
3394 if (buffer && buflen && (*buflen >= sizeof (int)))
3397 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3398 VCL_SESS_ATTR_V6ONLY);
3399 *buflen = sizeof (int);
3401 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3402 *(int *) buffer, *buflen);
3408 case VPPCOM_ATTR_SET_V6ONLY:
3409 if (buffer && buflen && (*buflen == sizeof (int)))
3412 if (*(int *) buffer)
3413 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
3415 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
3417 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3418 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_V6ONLY),
3425 case VPPCOM_ATTR_GET_KEEPALIVE:
3426 if (buffer && buflen && (*buflen >= sizeof (int)))
3429 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3430 VCL_SESS_ATTR_KEEPALIVE);
3431 *buflen = sizeof (int);
3433 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3434 *(int *) buffer, *buflen);
3440 case VPPCOM_ATTR_SET_KEEPALIVE:
3441 if (buffer && buflen && (*buflen == sizeof (int)))
3444 if (*(int *) buffer)
3445 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3447 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3449 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3450 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_KEEPALIVE),
3457 case VPPCOM_ATTR_GET_TCP_NODELAY:
3458 if (buffer && buflen && (*buflen >= sizeof (int)))
3461 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3462 VCL_SESS_ATTR_TCP_NODELAY);
3463 *buflen = sizeof (int);
3465 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3466 *(int *) buffer, *buflen);
3472 case VPPCOM_ATTR_SET_TCP_NODELAY:
3473 if (buffer && buflen && (*buflen == sizeof (int)))
3476 if (*(int *) buffer)
3477 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3479 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3481 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3482 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_NODELAY),
3489 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3490 if (buffer && buflen && (*buflen >= sizeof (int)))
3493 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3494 VCL_SESS_ATTR_TCP_KEEPIDLE);
3495 *buflen = sizeof (int);
3497 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3498 *(int *) buffer, *buflen);
3504 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3505 if (buffer && buflen && (*buflen == sizeof (int)))
3508 if (*(int *) buffer)
3509 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3511 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3513 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3514 VCL_SESS_ATTR_TEST (session->attr,
3515 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3521 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3522 if (buffer && buflen && (*buflen >= sizeof (int)))
3525 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3526 VCL_SESS_ATTR_TCP_KEEPINTVL);
3527 *buflen = sizeof (int);
3529 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3530 *(int *) buffer, *buflen);
3536 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3537 if (buffer && buflen && (*buflen == sizeof (int)))
3540 if (*(int *) buffer)
3541 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3543 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3545 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3546 VCL_SESS_ATTR_TEST (session->attr,
3547 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3553 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3554 if (buffer && buflen && (*buflen >= sizeof (u32)))
3557 *(u32 *) buffer = session->user_mss;
3558 *buflen = sizeof (int);
3560 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3561 *(int *) buffer, *buflen);
3567 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3568 if (buffer && buflen && (*buflen == sizeof (u32)))
3571 session->user_mss = *(u32 *) buffer;
3573 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3574 session->user_mss, *buflen);
3580 case VPPCOM_ATTR_SET_SHUT:
3581 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3582 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3583 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3584 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3587 case VPPCOM_ATTR_GET_SHUT:
3588 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3590 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3593 *(int *) buffer = SHUT_RD;
3594 else if (tmp_flags == 2)
3595 *(int *) buffer = SHUT_WR;
3596 else if (tmp_flags == 3)
3597 *(int *) buffer = SHUT_RDWR;
3598 *buflen = sizeof (int);
3609 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3610 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3612 vcl_worker_t *wrk = vcl_worker_get_current ();
3613 vcl_session_t *session;
3617 rv = vppcom_session_read (session_handle, buffer, buflen);
3618 else if (flags & MSG_PEEK)
3619 rv = vppcom_session_peek (session_handle, buffer, buflen);
3622 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3623 return VPPCOM_EAFNOSUPPORT;
3628 session = vcl_session_get_w_handle (wrk, session_handle);
3629 if (session->transport.is_ip4)
3630 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3631 sizeof (ip4_address_t));
3633 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3634 sizeof (ip6_address_t));
3635 ep->is_ip4 = session->transport.is_ip4;
3636 ep->port = session->transport.rmt_port;
3643 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3644 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3646 vcl_worker_t *wrk = vcl_worker_get_current ();
3649 s = vcl_session_get_w_handle (wrk, session_handle);
3651 return VPPCOM_EBADFD;
3654 return VPPCOM_EINVAL;
3658 if (s->session_type != VPPCOM_PROTO_UDP
3659 || (s->flags & VCL_SESSION_F_CONNECTED))
3660 return VPPCOM_EINVAL;
3662 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3663 if (PREDICT_FALSE (s->session_state == STATE_CLOSED))
3665 vcl_send_session_connect (wrk, s);
3669 s->transport.is_ip4 = ep->is_ip4;
3670 s->transport.rmt_port = ep->port;
3671 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3677 // TBD check the flags and do the right thing
3678 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3681 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3682 s->is_dgram ? 1 : 0));
3686 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3688 vcl_worker_t *wrk = vcl_worker_get_current ();
3689 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3690 u32 i, keep_trying = 1;
3691 svm_msg_q_msg_t msg;
3695 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3698 return VPPCOM_EFAULT;
3702 vcl_session_t *session;
3704 /* Dequeue all events and drop all unhandled io events */
3705 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3707 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3708 vcl_handle_mq_event (wrk, e);
3709 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3711 vec_reset_length (wrk->unhandled_evts_vector);
3713 for (i = 0; i < n_sids; i++)
3715 session = vcl_session_get (wrk, vp[i].sh);
3718 vp[i].revents = POLLHUP;
3725 if (POLLIN & vp[i].events)
3727 rv = vcl_session_read_ready (session);
3730 vp[i].revents |= POLLIN;
3737 case VPPCOM_ECONNRESET:
3738 vp[i].revents = POLLHUP;
3742 vp[i].revents = POLLERR;
3749 if (POLLOUT & vp[i].events)
3751 rv = vcl_session_write_ready (session);
3754 vp[i].revents |= POLLOUT;
3761 case VPPCOM_ECONNRESET:
3762 vp[i].revents = POLLHUP;
3766 vp[i].revents = POLLERR;
3773 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3775 vp[i].revents = POLLNVAL;
3779 if (wait_for_time != -1)
3780 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3782 while ((num_ev == 0) && keep_trying);
3788 vppcom_mq_epoll_fd (void)
3790 vcl_worker_t *wrk = vcl_worker_get_current ();
3791 return wrk->mqs_epfd;
3795 vppcom_session_index (vcl_session_handle_t session_handle)
3797 return session_handle & 0xFFFFFF;
3801 vppcom_session_worker (vcl_session_handle_t session_handle)
3803 return session_handle >> 24;
3807 vppcom_worker_register (void)
3813 if (!vcl_worker_alloc_and_init ())
3814 return VPPCOM_EEXIST;
3816 wrk = vcl_worker_get_current ();
3817 wrk_name = format (0, "%s-wrk-%u", vcm->app_name, wrk->wrk_index);
3819 rv = vppcom_connect_to_vpp ((char *) wrk_name);
3820 vec_free (wrk_name);
3823 return VPPCOM_EFAULT;
3825 if (vcl_worker_register_with_vpp ())
3826 return VPPCOM_EEXIST;
3832 vppcom_worker_unregister (void)
3834 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3835 vcl_set_worker_index (~0);
3839 vppcom_worker_index_set (int index)
3841 vcl_set_worker_index (index);
3845 vppcom_worker_index (void)
3847 return vcl_get_worker_index ();
3851 vppcom_worker_mqs_epfd (void)
3853 vcl_worker_t *wrk = vcl_worker_get_current ();
3854 if (!vcm->cfg.use_mq_eventfd)
3856 return wrk->mqs_epfd;
3860 vppcom_session_is_connectable_listener (uint32_t session_handle)
3862 vcl_session_t *session;
3863 vcl_worker_t *wrk = vcl_worker_get_current ();
3864 session = vcl_session_get_w_handle (wrk, session_handle);
3866 return VPPCOM_EBADFD;
3867 return vcl_session_is_connectable_listener (wrk, session);
3871 vppcom_session_listener (uint32_t session_handle)
3873 vcl_worker_t *wrk = vcl_worker_get_current ();
3874 vcl_session_t *listen_session, *session;
3875 session = vcl_session_get_w_handle (wrk, session_handle);
3877 return VPPCOM_EBADFD;
3878 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3879 return VPPCOM_EBADFD;
3880 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3881 if (!listen_session)
3882 return VPPCOM_EBADFD;
3883 return vcl_session_handle (listen_session);
3887 vppcom_session_n_accepted (uint32_t session_handle)
3889 vcl_worker_t *wrk = vcl_worker_get_current ();
3890 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3892 return VPPCOM_EBADFD;
3893 return session->n_accepted_sessions;
3897 * fd.io coding-style-patch-verification: ON
3900 * eval: (c-set-style "gnu")