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 if (s->flags & VCL_SESSION_F_CONNECTED)
213 mp->flags = TRANSPORT_CFG_F_CONNECTED;
214 app_send_ctrl_evt_to_vpp (mq, app_evt);
218 vcl_send_session_connect (vcl_worker_t * wrk, vcl_session_t * s)
220 app_session_evt_t _app_evt, *app_evt = &_app_evt;
221 session_connect_msg_t *mp;
224 mq = vcl_worker_ctrl_mq (wrk);
225 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_CONNECT);
226 mp = (session_connect_msg_t *) app_evt->evt->data;
227 memset (mp, 0, sizeof (*mp));
228 mp->client_index = wrk->my_client_index;
229 mp->context = s->session_index;
230 mp->wrk_index = wrk->vpp_wrk_index;
231 mp->is_ip4 = s->transport.is_ip4;
232 mp->parent_handle = s->parent_handle;
233 clib_memcpy_fast (&mp->ip, &s->transport.rmt_ip, sizeof (mp->ip));
234 clib_memcpy_fast (&mp->lcl_ip, &s->transport.lcl_ip, sizeof (mp->lcl_ip));
235 mp->port = s->transport.rmt_port;
236 mp->lcl_port = s->transport.lcl_port;
237 mp->proto = s->session_type;
238 if (s->flags & VCL_SESSION_F_CONNECTED)
239 mp->flags |= TRANSPORT_CFG_F_CONNECTED;
240 app_send_ctrl_evt_to_vpp (mq, app_evt);
244 vcl_send_session_unlisten (vcl_worker_t * wrk, vcl_session_t * s)
246 app_session_evt_t _app_evt, *app_evt = &_app_evt;
247 session_unlisten_msg_t *mp;
250 mq = vcl_worker_ctrl_mq (wrk);
251 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_UNLISTEN);
252 mp = (session_unlisten_msg_t *) app_evt->evt->data;
253 memset (mp, 0, sizeof (*mp));
254 mp->client_index = wrk->my_client_index;
255 mp->wrk_index = wrk->vpp_wrk_index;
256 mp->handle = s->vpp_handle;
257 mp->context = wrk->wrk_index;
258 app_send_ctrl_evt_to_vpp (mq, app_evt);
262 vcl_send_session_disconnect (vcl_worker_t * wrk, vcl_session_t * s)
264 app_session_evt_t _app_evt, *app_evt = &_app_evt;
265 session_disconnect_msg_t *mp;
268 /* Send to thread that owns the session */
270 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_DISCONNECT);
271 mp = (session_disconnect_msg_t *) app_evt->evt->data;
272 memset (mp, 0, sizeof (*mp));
273 mp->client_index = wrk->my_client_index;
274 mp->handle = s->vpp_handle;
275 app_send_ctrl_evt_to_vpp (mq, app_evt);
279 vcl_send_app_detach (vcl_worker_t * wrk)
281 app_session_evt_t _app_evt, *app_evt = &_app_evt;
282 session_app_detach_msg_t *mp;
285 mq = vcl_worker_ctrl_mq (wrk);
286 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_DETACH);
287 mp = (session_app_detach_msg_t *) app_evt->evt->data;
288 memset (mp, 0, sizeof (*mp));
289 mp->client_index = wrk->my_client_index;
290 app_send_ctrl_evt_to_vpp (mq, app_evt);
294 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
295 session_handle_t handle, int retval)
297 app_session_evt_t _app_evt, *app_evt = &_app_evt;
298 session_accepted_reply_msg_t *rmp;
299 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
300 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
301 rmp->handle = handle;
302 rmp->context = context;
303 rmp->retval = retval;
304 app_send_ctrl_evt_to_vpp (mq, app_evt);
308 vcl_send_session_disconnected_reply (svm_msg_q_t * mq, u32 context,
309 session_handle_t handle, int retval)
311 app_session_evt_t _app_evt, *app_evt = &_app_evt;
312 session_disconnected_reply_msg_t *rmp;
313 app_alloc_ctrl_evt_to_vpp (mq, app_evt,
314 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
315 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
316 rmp->handle = handle;
317 rmp->context = context;
318 rmp->retval = retval;
319 app_send_ctrl_evt_to_vpp (mq, app_evt);
323 vcl_send_session_reset_reply (svm_msg_q_t * mq, u32 context,
324 session_handle_t handle, int retval)
326 app_session_evt_t _app_evt, *app_evt = &_app_evt;
327 session_reset_reply_msg_t *rmp;
328 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_RESET_REPLY);
329 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
330 rmp->handle = handle;
331 rmp->context = context;
332 rmp->retval = retval;
333 app_send_ctrl_evt_to_vpp (mq, app_evt);
337 vcl_send_session_worker_update (vcl_worker_t * wrk, vcl_session_t * s,
340 app_session_evt_t _app_evt, *app_evt = &_app_evt;
341 session_worker_update_msg_t *mp;
344 mq = vcl_session_vpp_evt_q (wrk, s);
345 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_WORKER_UPDATE);
346 mp = (session_worker_update_msg_t *) app_evt->evt->data;
347 mp->client_index = wrk->my_client_index;
348 mp->handle = s->vpp_handle;
349 mp->req_wrk_index = wrk->vpp_wrk_index;
350 mp->wrk_index = wrk_index;
351 app_send_ctrl_evt_to_vpp (mq, app_evt);
355 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp,
358 vcl_session_t *session, *listen_session;
359 svm_fifo_t *rx_fifo, *tx_fifo;
363 session = vcl_session_alloc (wrk);
365 listen_session = vcl_session_get (wrk, ls_index);
366 if (listen_session->vpp_handle != mp->listener_handle)
368 VDBG (0, "ERROR: listener handle %lu does not match session %u",
369 mp->listener_handle, ls_index);
373 if (vcl_segment_is_not_mounted (wrk, mp->segment_handle))
375 VDBG (0, "ERROR: segment for session %u is not mounted!",
376 session->session_index);
380 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
381 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
382 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
384 rx_fifo->client_session_index = session->session_index;
385 tx_fifo->client_session_index = session->session_index;
386 rx_fifo->client_thread_index = vcl_get_worker_index ();
387 tx_fifo->client_thread_index = vcl_get_worker_index ();
388 vpp_wrk_index = tx_fifo->master_thread_index;
389 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
390 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
392 session->vpp_handle = mp->handle;
393 session->vpp_thread_index = rx_fifo->master_thread_index;
394 session->rx_fifo = rx_fifo;
395 session->tx_fifo = tx_fifo;
397 session->session_state = STATE_ACCEPT;
398 session->transport.rmt_port = mp->rmt.port;
399 session->transport.is_ip4 = mp->rmt.is_ip4;
400 clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
401 sizeof (ip46_address_t));
403 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
404 session->transport.lcl_port = listen_session->transport.lcl_port;
405 session->transport.lcl_ip = listen_session->transport.lcl_ip;
406 session->session_type = listen_session->session_type;
407 session->is_dgram = vcl_proto_is_dgram (session->session_type);
408 session->listener_index = listen_session->session_index;
409 listen_session->n_accepted_sessions++;
411 VDBG (1, "session %u [0x%llx]: client accept request from %s address %U"
412 " port %d queue %p!", session->session_index, mp->handle,
413 mp->rmt.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->rmt.ip,
414 mp->rmt.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
415 clib_net_to_host_u16 (mp->rmt.port), session->vpp_evt_q);
416 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
418 vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context,
419 session->vpp_handle, 0);
421 return session->session_index;
424 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
425 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
426 VNET_API_ERROR_INVALID_ARGUMENT);
427 vcl_session_free (wrk, session);
428 return VCL_INVALID_SESSION_INDEX;
432 vcl_session_connected_handler (vcl_worker_t * wrk,
433 session_connected_msg_t * mp)
435 u32 session_index, vpp_wrk_index;
436 svm_fifo_t *rx_fifo, *tx_fifo;
437 vcl_session_t *session = 0;
439 session_index = mp->context;
440 session = vcl_session_get (wrk, session_index);
443 VDBG (0, "ERROR: vpp handle 0x%llx has no session index (%u)!",
444 mp->handle, session_index);
445 return VCL_INVALID_SESSION_INDEX;
449 VDBG (0, "ERROR: session index %u: connect failed! %U",
450 session_index, format_session_error, mp->retval);
451 session->session_state = STATE_DETACHED | STATE_DISCONNECT;
452 session->vpp_handle = mp->handle;
453 return session_index;
456 session->vpp_handle = mp->handle;
457 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
459 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
460 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
461 if (vcl_segment_is_not_mounted (wrk, mp->segment_handle))
463 VDBG (0, "segment for session %u is not mounted!",
464 session->session_index);
465 session->session_state = STATE_DETACHED | STATE_DISCONNECT;
466 vcl_send_session_disconnect (wrk, session);
467 return session_index;
470 rx_fifo->client_session_index = session_index;
471 tx_fifo->client_session_index = session_index;
472 rx_fifo->client_thread_index = vcl_get_worker_index ();
473 tx_fifo->client_thread_index = vcl_get_worker_index ();
475 vpp_wrk_index = tx_fifo->master_thread_index;
476 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
477 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
481 session->ct_rx_fifo = uword_to_pointer (mp->ct_rx_fifo, svm_fifo_t *);
482 session->ct_tx_fifo = uword_to_pointer (mp->ct_tx_fifo, svm_fifo_t *);
483 if (vcl_segment_is_not_mounted (wrk, mp->ct_segment_handle))
485 VDBG (0, "ct segment for session %u is not mounted!",
486 session->session_index);
487 session->session_state = STATE_DETACHED | STATE_DISCONNECT;
488 vcl_send_session_disconnect (wrk, session);
489 return session_index;
493 session->rx_fifo = rx_fifo;
494 session->tx_fifo = tx_fifo;
495 session->vpp_thread_index = rx_fifo->master_thread_index;
496 session->transport.is_ip4 = mp->lcl.is_ip4;
497 clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
498 sizeof (session->transport.lcl_ip));
499 session->transport.lcl_port = mp->lcl.port;
500 session->session_state = STATE_CONNECT;
502 /* Add it to lookup table */
503 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
505 VDBG (1, "session %u [0x%llx] connected! rx_fifo %p, refcnt %d, tx_fifo %p,"
506 " refcnt %d", session_index, mp->handle, session->rx_fifo,
507 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
509 return session_index;
513 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
515 vcl_session_msg_t *accepted_msg;
518 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
520 accepted_msg = &session->accept_evts_fifo[i];
521 if (accepted_msg->accepted_msg.handle == handle)
523 accepted_msg->flags |= flags;
531 vcl_session_reset_handler (vcl_worker_t * wrk,
532 session_reset_msg_t * reset_msg)
534 vcl_session_t *session;
537 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
538 session = vcl_session_get (wrk, sid);
541 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
542 return VCL_INVALID_SESSION_INDEX;
545 /* Caught a reset before actually accepting the session */
546 if (session->session_state == STATE_LISTEN)
549 if (!vcl_flag_accepted_session (session, reset_msg->handle,
550 VCL_ACCEPTED_F_RESET))
551 VDBG (0, "session was not accepted!");
552 return VCL_INVALID_SESSION_INDEX;
555 session->session_state = STATE_DISCONNECT;
556 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
561 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
563 vcl_session_t *session;
564 u32 sid = mp->context;
566 session = vcl_session_get (wrk, sid);
569 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
570 format_session_error, mp->retval);
573 session->session_state = STATE_DETACHED;
574 session->vpp_handle = mp->handle;
579 VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!",
581 return VCL_INVALID_SESSION_INDEX;
585 session->vpp_handle = mp->handle;
586 session->transport.is_ip4 = mp->lcl_is_ip4;
587 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
588 sizeof (ip46_address_t));
589 session->transport.lcl_port = mp->lcl_port;
590 vcl_session_table_add_listener (wrk, mp->handle, sid);
591 session->session_state = STATE_LISTEN;
593 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
594 vec_validate (wrk->vpp_event_queues, 0);
595 wrk->vpp_event_queues[0] = session->vpp_evt_q;
597 if (vcl_session_is_cl (session))
599 svm_fifo_t *rx_fifo, *tx_fifo;
600 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
601 rx_fifo = uword_to_pointer (mp->rx_fifo, svm_fifo_t *);
602 rx_fifo->client_session_index = sid;
603 tx_fifo = uword_to_pointer (mp->tx_fifo, svm_fifo_t *);
604 tx_fifo->client_session_index = sid;
605 session->rx_fifo = rx_fifo;
606 session->tx_fifo = tx_fifo;
609 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
614 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
616 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
619 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
622 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
625 if (s->session_state != STATE_DISCONNECT)
627 /* Connected udp listener */
628 if (s->session_type == VPPCOM_PROTO_UDP
629 && s->session_state == STATE_CLOSED)
632 VDBG (0, "Unlisten session in wrong state %llx", mp->handle);
637 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
638 s->session_index, mp->handle, format_session_error, mp->retval);
640 if (mp->context != wrk->wrk_index)
641 VDBG (0, "wrong context");
643 vcl_session_table_del_vpp_handle (wrk, mp->handle);
644 vcl_session_free (wrk, s);
648 vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
650 session_migrated_msg_t *mp = (session_migrated_msg_t *) data;
653 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
656 VDBG (0, "Migrated notification with wrong handle %llx", mp->handle);
660 s->vpp_thread_index = mp->vpp_thread_index;
661 s->vpp_handle = mp->new_handle;
662 s->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
664 vec_validate (wrk->vpp_event_queues, s->vpp_thread_index);
665 wrk->vpp_event_queues[s->vpp_thread_index] = s->vpp_evt_q;
667 vcl_session_table_del_vpp_handle (wrk, mp->handle);
668 vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
670 /* Generate new tx event if we have outstanding data */
671 if (svm_fifo_has_event (s->tx_fifo))
672 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
673 SESSION_IO_EVT_TX, SVM_Q_WAIT);
675 VDBG (0, "Migrated 0x%lx to thread %u 0x%lx", mp->handle,
676 s->vpp_thread_index, mp->new_handle);
679 static vcl_session_t *
680 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
682 vcl_session_msg_t *vcl_msg;
683 vcl_session_t *session;
685 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
686 if (PREDICT_FALSE (session != 0))
687 VWRN ("session overlap handle %lu state %u!", msg->handle,
688 session->session_state);
690 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
693 VERR ("couldn't find listen session: listener handle %llx",
694 msg->listener_handle);
698 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
700 vcl_msg->accepted_msg = *msg;
701 /* Session handle points to listener until fully accepted by app */
702 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
707 static vcl_session_t *
708 vcl_session_disconnected_handler (vcl_worker_t * wrk,
709 session_disconnected_msg_t * msg)
711 vcl_session_t *session;
713 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
716 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
720 /* Late disconnect notification on a session that has been closed */
721 if (session->session_state == STATE_CLOSED)
724 /* Caught a disconnect before actually accepting the session */
725 if (session->session_state == STATE_LISTEN)
727 if (!vcl_flag_accepted_session (session, msg->handle,
728 VCL_ACCEPTED_F_CLOSED))
729 VDBG (0, "session was not accepted!");
733 /* If not already reset change state */
734 if (session->session_state != STATE_DISCONNECT)
735 session->session_state = STATE_VPP_CLOSING;
741 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
743 session_cleanup_msg_t *msg;
744 vcl_session_t *session;
746 msg = (session_cleanup_msg_t *) data;
747 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
750 VDBG (0, "disconnect confirmed for unknown handle 0x%llx", msg->handle);
754 if (msg->type == SESSION_CLEANUP_TRANSPORT)
756 /* Transport was cleaned up before we confirmed close. Probably the
757 * app is still waiting for some data that cannot be delivered.
758 * Confirm close to make sure everything is cleaned up */
759 if (session->session_state == STATE_VPP_CLOSING)
760 vcl_session_cleanup (wrk, session, vcl_session_handle (session),
761 1 /* do_disconnect */ );
765 vcl_session_table_del_vpp_handle (wrk, msg->handle);
766 /* Should not happen. App did not close the connection so don't free it. */
767 if (session->session_state != STATE_CLOSED)
769 VDBG (0, "app did not close session %d", session->session_index);
770 session->session_state = STATE_DETACHED;
771 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
774 vcl_session_free (wrk, session);
778 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
780 session_req_worker_update_msg_t *msg;
783 msg = (session_req_worker_update_msg_t *) data;
784 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
788 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
792 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
794 session_worker_update_reply_msg_t *msg;
797 msg = (session_worker_update_reply_msg_t *) data;
798 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
801 VDBG (0, "unknown handle 0x%llx", msg->handle);
804 if (vcl_segment_is_not_mounted (wrk, msg->segment_handle))
806 clib_warning ("segment for session %u is not mounted!",
813 s->rx_fifo = uword_to_pointer (msg->rx_fifo, svm_fifo_t *);
814 s->tx_fifo = uword_to_pointer (msg->tx_fifo, svm_fifo_t *);
815 s->rx_fifo->client_session_index = s->session_index;
816 s->tx_fifo->client_session_index = s->session_index;
817 s->rx_fifo->client_thread_index = wrk->wrk_index;
818 s->tx_fifo->client_thread_index = wrk->wrk_index;
820 s->session_state = STATE_UPDATED;
822 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
823 s->vpp_handle, wrk->wrk_index);
827 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
829 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
830 session_app_add_segment_msg_t *msg;
834 msg = (session_app_add_segment_msg_t *) data;
838 vl_socket_client_recv_fd_msg2 (&wrk->bapi_sock_ctx, &fd, 1, 5);
839 seg_type = SSVM_SEGMENT_MEMFD;
842 segment_handle = msg->segment_handle;
843 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
845 clib_warning ("invalid segment handle");
849 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
852 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
856 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
861 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
863 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
864 vcl_segment_detach (msg->segment_handle);
865 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
869 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
871 session_disconnected_msg_t *disconnected_msg;
872 vcl_session_t *session;
874 switch (e->event_type)
876 case SESSION_IO_EVT_RX:
877 case SESSION_IO_EVT_TX:
878 session = vcl_session_get (wrk, e->session_index);
879 if (!session || !(session->session_state & STATE_OPEN))
881 vec_add1 (wrk->unhandled_evts_vector, *e);
883 case SESSION_CTRL_EVT_ACCEPTED:
884 vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
886 case SESSION_CTRL_EVT_CONNECTED:
887 vcl_session_connected_handler (wrk,
888 (session_connected_msg_t *) e->data);
890 case SESSION_CTRL_EVT_DISCONNECTED:
891 disconnected_msg = (session_disconnected_msg_t *) e->data;
892 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
895 VDBG (0, "disconnected session %u [0x%llx]", session->session_index,
896 session->vpp_handle);
898 case SESSION_CTRL_EVT_RESET:
899 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
901 case SESSION_CTRL_EVT_BOUND:
902 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
904 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
905 vcl_session_unlisten_reply_handler (wrk, e->data);
907 case SESSION_CTRL_EVT_MIGRATED:
908 vcl_session_migrated_handler (wrk, e->data);
910 case SESSION_CTRL_EVT_CLEANUP:
911 vcl_session_cleanup_handler (wrk, e->data);
913 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
914 vcl_session_req_worker_update_handler (wrk, e->data);
916 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
917 vcl_session_worker_update_reply_handler (wrk, e->data);
919 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
920 vcl_session_app_add_segment_handler (wrk, e->data);
922 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
923 vcl_session_app_del_segment_handler (wrk, e->data);
926 clib_warning ("unhandled %u", e->event_type);
932 vppcom_wait_for_session_state_change (u32 session_index,
933 vcl_session_state_t state,
936 vcl_worker_t *wrk = vcl_worker_get_current ();
937 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
938 vcl_session_t *volatile session;
944 session = vcl_session_get (wrk, session_index);
945 if (PREDICT_FALSE (!session))
947 return VPPCOM_EBADFD;
949 if (session->session_state & state)
953 if (session->session_state & STATE_DETACHED)
955 return VPPCOM_ECONNREFUSED;
958 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
963 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
964 vcl_handle_mq_event (wrk, e);
965 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
967 while (clib_time_now (&wrk->clib_time) < timeout);
969 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
970 vppcom_session_state_str (state));
971 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
973 return VPPCOM_ETIMEDOUT;
977 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
979 vcl_session_state_t state;
983 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
986 vec_foreach (sip, wrk->pending_session_wrk_updates)
988 s = vcl_session_get (wrk, *sip);
989 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
990 state = s->session_state;
991 vppcom_wait_for_session_state_change (s->session_index, STATE_UPDATED, 5);
992 s->session_state = state;
994 vec_reset_length (wrk->pending_session_wrk_updates);
998 vcl_flush_mq_events (void)
1000 vcl_worker_t *wrk = vcl_worker_get_current ();
1001 svm_msg_q_msg_t *msg;
1006 mq = wrk->app_event_queue;
1007 svm_msg_q_lock (mq);
1008 vcl_mq_dequeue_batch (wrk, mq, ~0);
1009 svm_msg_q_unlock (mq);
1011 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1013 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1014 e = svm_msg_q_msg_data (mq, msg);
1015 vcl_handle_mq_event (wrk, e);
1016 svm_msg_q_free_msg (mq, msg);
1018 vec_reset_length (wrk->mq_msg_vector);
1019 vcl_handle_pending_wrk_updates (wrk);
1023 vppcom_app_session_enable (void)
1027 if (vcm->app_state != STATE_APP_ENABLED)
1029 vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
1030 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
1031 if (PREDICT_FALSE (rv))
1033 VDBG (0, "application session enable timed out! returning %d (%s)",
1034 rv, vppcom_retval_str (rv));
1042 vppcom_app_attach (void)
1046 vppcom_app_send_attach ();
1047 rv = vcl_wait_for_app_state_change (STATE_APP_ATTACHED);
1048 if (PREDICT_FALSE (rv))
1050 VDBG (0, "application attach timed out! returning %d (%s)", rv,
1051 vppcom_retval_str (rv));
1059 vppcom_session_unbind (u32 session_handle)
1061 vcl_worker_t *wrk = vcl_worker_get_current ();
1062 session_accepted_msg_t *accepted_msg;
1063 vcl_session_t *session = 0;
1064 vcl_session_msg_t *evt;
1066 session = vcl_session_get_w_handle (wrk, session_handle);
1068 return VPPCOM_EBADFD;
1070 /* Flush pending accept events, if any */
1071 while (clib_fifo_elts (session->accept_evts_fifo))
1073 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1074 accepted_msg = &evt->accepted_msg;
1075 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1076 vcl_send_session_accepted_reply (session->vpp_evt_q,
1077 accepted_msg->context,
1078 session->vpp_handle, -1);
1080 clib_fifo_free (session->accept_evts_fifo);
1082 vcl_send_session_unlisten (wrk, session);
1084 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1085 session->vpp_handle);
1086 vcl_evt (VCL_EVT_UNBIND, session);
1088 session->vpp_handle = ~0;
1089 session->session_state = STATE_DISCONNECT;
1095 vppcom_session_disconnect (u32 session_handle)
1097 vcl_worker_t *wrk = vcl_worker_get_current ();
1098 svm_msg_q_t *vpp_evt_q;
1099 vcl_session_t *session, *listen_session;
1100 vcl_session_state_t state;
1103 session = vcl_session_get_w_handle (wrk, session_handle);
1105 return VPPCOM_EBADFD;
1107 vpp_handle = session->vpp_handle;
1108 state = session->session_state;
1110 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
1111 vpp_handle, state, vppcom_session_state_str (state));
1113 if (PREDICT_FALSE (state & STATE_LISTEN))
1115 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
1116 return VPPCOM_EBADFD;
1119 if (state & STATE_VPP_CLOSING)
1121 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
1122 vcl_send_session_disconnected_reply (vpp_evt_q, wrk->my_client_index,
1124 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
1125 session->session_index, vpp_handle);
1129 VDBG (1, "session %u [0x%llx]: sending disconnect...",
1130 session->session_index, vpp_handle);
1131 vcl_send_session_disconnect (wrk, session);
1134 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
1136 listen_session = vcl_session_get (wrk, session->listener_index);
1137 listen_session->n_accepted_sessions--;
1146 * Notify vpp of the disconnect and mark the worker as free. If we're the
1147 * last worker, do a full cleanup otherwise, since we're probably a forked
1148 * child, avoid syscalls as much as possible. We might've lost privileges.
1151 vppcom_app_exit (void)
1153 if (!pool_elts (vcm->workers))
1155 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1156 vcl_set_worker_index (~0);
1157 vcl_elog_stop (vcm);
1161 * VPPCOM Public API functions
1164 vppcom_app_create (char *app_name)
1166 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1171 VDBG (1, "already initialized");
1172 return VPPCOM_EEXIST;
1176 vppcom_cfg (&vcm->cfg);
1177 vcl_cfg = &vcm->cfg;
1179 vcm->main_cpu = pthread_self ();
1180 vcm->main_pid = getpid ();
1181 vcm->app_name = format (0, "%s", app_name);
1182 vppcom_init_error_string_table ();
1183 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1184 20 /* timeout in secs */ );
1185 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1186 clib_spinlock_init (&vcm->workers_lock);
1187 clib_rwlock_init (&vcm->segment_table_lock);
1188 atexit (vppcom_app_exit);
1190 /* Allocate default worker */
1191 vcl_worker_alloc_and_init ();
1193 /* API hookup and connect to VPP */
1194 vcl_elog_init (vcm);
1195 vcm->app_state = STATE_APP_START;
1196 rv = vppcom_connect_to_vpp (app_name);
1199 VERR ("couldn't connect to VPP!");
1202 VDBG (0, "sending session enable");
1203 rv = vppcom_app_session_enable ();
1206 VERR ("vppcom_app_session_enable() failed!");
1210 VDBG (0, "sending app attach");
1211 rv = vppcom_app_attach ();
1214 VERR ("vppcom_app_attach() failed!");
1218 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1219 vcm->workers[0].my_client_index, vcm->workers[0].my_client_index);
1225 vppcom_app_destroy (void)
1227 vcl_worker_t *wrk, *current_wrk;
1228 struct dlmallinfo mi;
1231 if (!pool_elts (vcm->workers))
1234 vcl_evt (VCL_EVT_DETACH, vcm);
1236 current_wrk = vcl_worker_get_current ();
1239 pool_foreach (wrk, vcm->workers, ({
1240 if (current_wrk != wrk)
1241 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1245 vcl_send_app_detach (current_wrk);
1246 vppcom_disconnect_from_vpp ();
1247 vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
1249 vcl_elog_stop (vcm);
1252 * Free the heap and fix vcm
1254 heap = clib_mem_get_heap ();
1255 mi = mspace_mallinfo (heap);
1256 munmap (mspace_least_addr (heap), mi.arena);
1258 vcm = &_vppcom_main;
1263 vppcom_session_create (u8 proto, u8 is_nonblocking)
1265 vcl_worker_t *wrk = vcl_worker_get_current ();
1266 vcl_session_t *session;
1268 session = vcl_session_alloc (wrk);
1270 session->session_type = proto;
1271 session->session_state = STATE_CLOSED;
1272 session->vpp_handle = ~0;
1273 session->is_dgram = vcl_proto_is_dgram (proto);
1276 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
1278 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1279 is_nonblocking, session_index);
1281 VDBG (0, "created session %u", session->session_index);
1283 return vcl_session_handle (session);
1287 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * session,
1288 vcl_session_handle_t sh, u8 do_disconnect)
1290 vcl_session_state_t state;
1291 u32 next_sh, vep_sh;
1296 is_vep = session->is_vep;
1297 next_sh = session->vep.next_sh;
1298 vep_sh = session->vep.vep_sh;
1299 state = session->session_state;
1300 vpp_handle = session->vpp_handle;
1302 VDBG (1, "session %u [0x%llx] closing", session->session_index, vpp_handle);
1306 while (next_sh != ~0)
1308 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1309 if (PREDICT_FALSE (rv < 0))
1310 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1311 " failed! rv %d (%s)", vpp_handle, next_sh, vep_sh, rv,
1312 vppcom_retval_str (rv));
1314 next_sh = session->vep.next_sh;
1319 if (session->is_vep_session)
1321 rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, sh, 0);
1323 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1324 "failed! rv %d (%s)", session->session_index, vpp_handle,
1325 vep_sh, rv, vppcom_retval_str (rv));
1330 VDBG (1, "session %u [0x%llx] disconnect skipped",
1331 session->session_index, vpp_handle);
1335 if (state & STATE_LISTEN)
1337 rv = vppcom_session_unbind (sh);
1338 if (PREDICT_FALSE (rv < 0))
1339 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1340 "rv %d (%s)", session->session_index, vpp_handle, rv,
1341 vppcom_retval_str (rv));
1344 else if ((state & STATE_OPEN)
1345 || (vcl_session_is_connectable_listener (wrk, session)))
1347 rv = vppcom_session_disconnect (sh);
1348 if (PREDICT_FALSE (rv < 0))
1349 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1350 " rv %d (%s)", session->session_index, vpp_handle,
1351 rv, vppcom_retval_str (rv));
1353 else if (state == STATE_DISCONNECT)
1355 svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, session);
1356 vcl_send_session_reset_reply (mq, wrk->my_client_index,
1357 session->vpp_handle, 0);
1359 else if (state == STATE_DETACHED)
1361 /* Should not happen. VPP cleaned up before app confirmed close */
1362 VDBG (0, "vpp freed session %d before close", session->session_index);
1366 session->session_state = STATE_CLOSED;
1368 /* Session is removed only after vpp confirms the disconnect */
1372 vcl_session_table_del_vpp_handle (wrk, vpp_handle);
1374 vcl_session_free (wrk, session);
1375 vcl_evt (VCL_EVT_CLOSE, session, rv);
1381 vppcom_session_close (uint32_t session_handle)
1383 vcl_worker_t *wrk = vcl_worker_get_current ();
1384 vcl_session_t *session;
1386 session = vcl_session_get_w_handle (wrk, session_handle);
1388 return VPPCOM_EBADFD;
1389 return vcl_session_cleanup (wrk, session, session_handle,
1390 1 /* do_disconnect */ );
1394 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1396 vcl_worker_t *wrk = vcl_worker_get_current ();
1397 vcl_session_t *session = 0;
1400 return VPPCOM_EINVAL;
1402 session = vcl_session_get_w_handle (wrk, session_handle);
1404 return VPPCOM_EBADFD;
1406 if (session->is_vep)
1408 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1409 session->session_index);
1410 return VPPCOM_EBADFD;
1413 session->transport.is_ip4 = ep->is_ip4;
1415 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1416 sizeof (ip4_address_t));
1418 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1419 sizeof (ip6_address_t));
1420 session->transport.lcl_port = ep->port;
1422 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1423 "proto %s", session->session_index, session_handle,
1424 session->transport.is_ip4 ? "IPv4" : "IPv6",
1425 format_ip46_address, &session->transport.lcl_ip,
1426 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1427 clib_net_to_host_u16 (session->transport.lcl_port),
1428 vppcom_proto_str (session->session_type));
1429 vcl_evt (VCL_EVT_BIND, session);
1431 if (session->session_type == VPPCOM_PROTO_UDP)
1432 vppcom_session_listen (session_handle, 10);
1438 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1440 vcl_worker_t *wrk = vcl_worker_get_current ();
1441 vcl_session_t *listen_session = 0;
1442 u64 listen_vpp_handle;
1445 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1446 if (!listen_session || listen_session->is_vep)
1447 return VPPCOM_EBADFD;
1449 if (q_len == 0 || q_len == ~0)
1450 q_len = vcm->cfg.listen_queue_size;
1452 listen_vpp_handle = listen_session->vpp_handle;
1453 if (listen_session->session_state & STATE_LISTEN)
1455 VDBG (0, "session %u [0x%llx]: already in listen state!",
1456 listen_sh, listen_vpp_handle);
1460 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1463 * Send listen request to vpp and wait for reply
1465 vcl_send_session_listen (wrk, listen_session);
1466 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1468 vcm->cfg.session_timeout);
1470 if (PREDICT_FALSE (rv))
1472 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1473 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1474 listen_sh, listen_session->vpp_handle, rv,
1475 vppcom_retval_str (rv));
1483 vppcom_session_tls_add_cert (uint32_t session_handle, char *cert,
1487 vcl_worker_t *wrk = vcl_worker_get_current ();
1488 vcl_session_t *session = 0;
1490 session = vcl_session_get_w_handle (wrk, session_handle);
1492 return VPPCOM_EBADFD;
1494 if (cert_len == 0 || cert_len == ~0)
1495 return VPPCOM_EBADFD;
1498 * Send listen request to vpp and wait for reply
1500 vppcom_send_application_tls_cert_add (session, cert, cert_len);
1501 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1502 vcl_wait_for_app_state_change (STATE_APP_READY);
1508 vppcom_session_tls_add_key (uint32_t session_handle, char *key,
1512 vcl_worker_t *wrk = vcl_worker_get_current ();
1513 vcl_session_t *session = 0;
1515 session = vcl_session_get_w_handle (wrk, session_handle);
1517 return VPPCOM_EBADFD;
1519 if (key_len == 0 || key_len == ~0)
1520 return VPPCOM_EBADFD;
1522 vppcom_send_application_tls_key_add (session, key, key_len);
1523 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1524 vcl_wait_for_app_state_change (STATE_APP_READY);
1529 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1533 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1535 return VPPCOM_EBADFD;
1538 if ((ls->session_state != STATE_LISTEN)
1539 && (!vcl_session_is_connectable_listener (wrk, ls)))
1542 "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1543 " (%s)", ls->vpp_handle, ls->session_state,
1544 vppcom_session_state_str (ls->session_state));
1545 return VPPCOM_EBADFD;
1551 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1553 if (!strcmp (proto_str, "TCP"))
1554 *proto = VPPCOM_PROTO_TCP;
1555 else if (!strcmp (proto_str, "tcp"))
1556 *proto = VPPCOM_PROTO_TCP;
1557 else if (!strcmp (proto_str, "UDP"))
1558 *proto = VPPCOM_PROTO_UDP;
1559 else if (!strcmp (proto_str, "udp"))
1560 *proto = VPPCOM_PROTO_UDP;
1561 else if (!strcmp (proto_str, "TLS"))
1562 *proto = VPPCOM_PROTO_TLS;
1563 else if (!strcmp (proto_str, "tls"))
1564 *proto = VPPCOM_PROTO_TLS;
1565 else if (!strcmp (proto_str, "QUIC"))
1566 *proto = VPPCOM_PROTO_QUIC;
1567 else if (!strcmp (proto_str, "quic"))
1568 *proto = VPPCOM_PROTO_QUIC;
1575 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1578 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1579 vcl_worker_t *wrk = vcl_worker_get_current ();
1580 session_accepted_msg_t accepted_msg;
1581 vcl_session_t *listen_session = 0;
1582 vcl_session_t *client_session = 0;
1583 vcl_session_msg_t *evt;
1584 svm_msg_q_msg_t msg;
1589 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1590 if (!listen_session)
1591 return VPPCOM_EBADFD;
1593 listen_session_index = listen_session->session_index;
1594 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1597 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1599 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1600 accept_flags = evt->flags;
1601 accepted_msg = evt->accepted_msg;
1605 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1606 VCL_SESS_ATTR_NONBLOCK);
1609 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1610 return VPPCOM_EAGAIN;
1612 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1613 return VPPCOM_EAGAIN;
1615 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1616 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1618 vcl_handle_mq_event (wrk, e);
1619 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1622 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1623 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1629 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1630 listen_session_index);
1631 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1632 return VPPCOM_ECONNABORTED;
1634 listen_session = vcl_session_get (wrk, listen_session_index);
1635 client_session = vcl_session_get (wrk, client_session_index);
1637 if (flags & O_NONBLOCK)
1638 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1640 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1641 " flags %d, is_nonblocking %u", listen_session->session_index,
1642 listen_session->vpp_handle, client_session_index,
1643 client_session->vpp_handle, flags,
1644 VCL_SESS_ATTR_TEST (client_session->attr, VCL_SESS_ATTR_NONBLOCK));
1648 ep->is_ip4 = client_session->transport.is_ip4;
1649 ep->port = client_session->transport.rmt_port;
1650 if (client_session->transport.is_ip4)
1651 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1652 sizeof (ip4_address_t));
1654 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1655 sizeof (ip6_address_t));
1658 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1659 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1660 client_session_index, client_session->vpp_handle,
1661 format_ip46_address, &client_session->transport.rmt_ip,
1662 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1663 clib_net_to_host_u16 (client_session->transport.rmt_port),
1664 format_ip46_address, &client_session->transport.lcl_ip,
1665 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1666 clib_net_to_host_u16 (client_session->transport.lcl_port));
1667 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1668 client_session_index);
1671 * Session might have been closed already
1675 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1676 client_session->session_state = STATE_VPP_CLOSING;
1677 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1678 client_session->session_state = STATE_DISCONNECT;
1680 return vcl_session_handle (client_session);
1684 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1686 vcl_worker_t *wrk = vcl_worker_get_current ();
1687 vcl_session_t *session = 0;
1691 session = vcl_session_get_w_handle (wrk, session_handle);
1693 return VPPCOM_EBADFD;
1694 session_index = session->session_index;
1696 if (PREDICT_FALSE (session->is_vep))
1698 VDBG (0, "ERROR: cannot connect epoll session %u!",
1699 session->session_index);
1700 return VPPCOM_EBADFD;
1703 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1705 VDBG (0, "session handle %u [0x%llx]: session already "
1706 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1707 session_handle, session->vpp_handle,
1708 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1709 &session->transport.rmt_ip, session->transport.is_ip4 ?
1710 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1711 clib_net_to_host_u16 (session->transport.rmt_port),
1712 vppcom_proto_str (session->session_type), session->session_state,
1713 vppcom_session_state_str (session->session_state));
1717 /* Attempt to connect a connectionless listener */
1718 if (PREDICT_FALSE (session->session_state & STATE_LISTEN))
1720 if (session->session_type != VPPCOM_PROTO_UDP)
1721 return VPPCOM_EINVAL;
1722 vcl_send_session_unlisten (wrk, session);
1723 session->session_state = STATE_CLOSED;
1726 session->transport.is_ip4 = server_ep->is_ip4;
1727 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1728 session->transport.rmt_port = server_ep->port;
1729 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1730 session->flags |= VCL_SESSION_F_CONNECTED;
1732 VDBG (0, "session handle %u (%s): connecting to peer %s %U "
1733 "port %d proto %s", session_handle,
1734 vppcom_session_state_str (session->session_state),
1735 session->transport.is_ip4 ? "IPv4" : "IPv6",
1736 format_ip46_address,
1737 &session->transport.rmt_ip, session->transport.is_ip4 ?
1738 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1739 clib_net_to_host_u16 (session->transport.rmt_port),
1740 vppcom_proto_str (session->session_type));
1742 vcl_send_session_connect (wrk, session);
1744 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK))
1745 return VPPCOM_EINPROGRESS;
1748 * Wait for reply from vpp if blocking
1750 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1751 vcm->cfg.session_timeout);
1753 session = vcl_session_get (wrk, session_index);
1754 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1755 session->vpp_handle, rv ? "failed" : "succeeded");
1761 vppcom_session_stream_connect (uint32_t session_handle,
1762 uint32_t parent_session_handle)
1764 vcl_worker_t *wrk = vcl_worker_get_current ();
1765 vcl_session_t *session, *parent_session;
1766 u32 session_index, parent_session_index;
1769 session = vcl_session_get_w_handle (wrk, session_handle);
1771 return VPPCOM_EBADFD;
1772 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1773 if (!parent_session)
1774 return VPPCOM_EBADFD;
1776 session_index = session->session_index;
1777 parent_session_index = parent_session->session_index;
1778 if (PREDICT_FALSE (session->is_vep))
1780 VDBG (0, "ERROR: cannot connect epoll session %u!",
1781 session->session_index);
1782 return VPPCOM_EBADFD;
1785 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1787 VDBG (0, "session handle %u [0x%llx]: session already "
1788 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1789 session_handle, session->vpp_handle,
1790 parent_session_handle, parent_session->vpp_handle,
1791 vppcom_proto_str (session->session_type), session->session_state,
1792 vppcom_session_state_str (session->session_state));
1796 /* Connect to quic session specifics */
1797 session->transport.is_ip4 = parent_session->transport.is_ip4;
1798 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1799 session->transport.rmt_port = 0;
1800 session->parent_handle = parent_session->vpp_handle;
1802 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1803 session_handle, parent_session_handle, parent_session->vpp_handle);
1806 * Send connect request and wait for reply from vpp
1808 vcl_send_session_connect (wrk, session);
1809 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1810 vcm->cfg.session_timeout);
1812 session->listener_index = parent_session_index;
1813 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1815 parent_session->n_accepted_sessions++;
1817 session = vcl_session_get (wrk, session_index);
1818 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1819 session->vpp_handle, rv ? "failed" : "succeeded");
1825 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1827 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1831 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1834 vcl_worker_t *wrk = vcl_worker_get_current ();
1835 int n_read = 0, is_nonblocking;
1836 vcl_session_t *s = 0;
1837 svm_fifo_t *rx_fifo;
1838 svm_msg_q_msg_t msg;
1843 if (PREDICT_FALSE (!buf))
1844 return VPPCOM_EINVAL;
1846 s = vcl_session_get_w_handle (wrk, session_handle);
1847 if (PREDICT_FALSE (!s || s->is_vep))
1848 return VPPCOM_EBADFD;
1850 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1852 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1853 s->session_index, s->vpp_handle, s->session_state,
1854 vppcom_session_state_str (s->session_state));
1855 return vcl_session_closed_error (s);
1858 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1859 is_ct = vcl_session_is_ct (s);
1860 mq = wrk->app_event_queue;
1861 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1864 if (svm_fifo_is_empty_cons (rx_fifo))
1868 if (vcl_session_is_closing (s))
1869 return vcl_session_closing_error (s);
1870 svm_fifo_unset_event (s->rx_fifo);
1871 return VPPCOM_EWOULDBLOCK;
1873 while (svm_fifo_is_empty_cons (rx_fifo))
1875 if (vcl_session_is_closing (s))
1876 return vcl_session_closing_error (s);
1878 svm_fifo_unset_event (s->rx_fifo);
1879 svm_msg_q_lock (mq);
1880 if (svm_msg_q_is_empty (mq))
1881 svm_msg_q_wait (mq);
1883 svm_msg_q_sub_w_lock (mq, &msg);
1884 e = svm_msg_q_msg_data (mq, &msg);
1885 svm_msg_q_unlock (mq);
1886 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1887 vcl_handle_mq_event (wrk, e);
1888 svm_msg_q_free_msg (mq, &msg);
1893 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1895 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1897 if (svm_fifo_is_empty_cons (rx_fifo))
1898 svm_fifo_unset_event (s->rx_fifo);
1900 /* Cut-through sessions might request tx notifications on rx fifos */
1901 if (PREDICT_FALSE (rx_fifo->want_deq_ntf))
1903 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1904 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1905 svm_fifo_reset_has_deq_ntf (s->rx_fifo);
1908 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1909 s->vpp_handle, n_read, rx_fifo);
1915 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1917 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1921 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1923 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1927 vppcom_session_read_segments (uint32_t session_handle,
1928 vppcom_data_segments_t ds)
1930 vcl_worker_t *wrk = vcl_worker_get_current ();
1931 int n_read = 0, is_nonblocking;
1932 vcl_session_t *s = 0;
1933 svm_fifo_t *rx_fifo;
1934 svm_msg_q_msg_t msg;
1939 s = vcl_session_get_w_handle (wrk, session_handle);
1940 if (PREDICT_FALSE (!s || s->is_vep))
1941 return VPPCOM_EBADFD;
1943 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1944 return vcl_session_closed_error (s);
1946 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1947 is_ct = vcl_session_is_ct (s);
1948 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1949 rx_fifo = s->rx_fifo;
1953 svm_fifo_unset_event (s->rx_fifo);
1955 if (svm_fifo_is_empty_cons (rx_fifo))
1959 svm_fifo_unset_event (rx_fifo);
1960 return VPPCOM_EWOULDBLOCK;
1962 while (svm_fifo_is_empty_cons (rx_fifo))
1964 if (vcl_session_is_closing (s))
1965 return vcl_session_closing_error (s);
1967 svm_fifo_unset_event (rx_fifo);
1968 svm_msg_q_lock (mq);
1969 if (svm_msg_q_is_empty (mq))
1970 svm_msg_q_wait (mq);
1972 svm_msg_q_sub_w_lock (mq, &msg);
1973 e = svm_msg_q_msg_data (mq, &msg);
1974 svm_msg_q_unlock (mq);
1975 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1976 vcl_handle_mq_event (wrk, e);
1977 svm_msg_q_free_msg (mq, &msg);
1981 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_seg_t *) ds);
1982 svm_fifo_unset_event (rx_fifo);
1988 vppcom_session_free_segments (uint32_t session_handle,
1989 vppcom_data_segments_t ds)
1991 vcl_worker_t *wrk = vcl_worker_get_current ();
1994 s = vcl_session_get_w_handle (wrk, session_handle);
1995 if (PREDICT_FALSE (!s || s->is_vep))
1998 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_seg_t *) ds);
2002 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
2004 u32 first_copy = clib_min (ds[0].len, max_bytes);
2005 clib_memcpy_fast (buf, ds[0].data, first_copy);
2006 if (first_copy < max_bytes)
2008 clib_memcpy_fast (buf + first_copy, ds[1].data,
2009 clib_min (ds[1].len, max_bytes - first_copy));
2015 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
2017 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
2021 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2023 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2025 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2031 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2032 size_t n, u8 is_flush, u8 is_dgram)
2034 int n_write, is_nonblocking;
2035 session_evt_type_t et;
2036 svm_msg_q_msg_t msg;
2037 svm_fifo_t *tx_fifo;
2042 if (PREDICT_FALSE (!buf || n == 0))
2043 return VPPCOM_EINVAL;
2045 if (PREDICT_FALSE (s->is_vep))
2047 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2048 " session!", s->session_index, s->vpp_handle);
2049 return VPPCOM_EBADFD;
2052 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2054 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2055 s->session_index, s->vpp_handle, s->session_state,
2056 vppcom_session_state_str (s->session_state));
2057 return vcl_session_closed_error (s);;
2060 is_ct = vcl_session_is_ct (s);
2061 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2062 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
2064 mq = wrk->app_event_queue;
2065 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2069 return VPPCOM_EWOULDBLOCK;
2071 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2073 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2074 if (vcl_session_is_closing (s))
2075 return vcl_session_closing_error (s);
2076 svm_msg_q_lock (mq);
2077 if (svm_msg_q_is_empty (mq))
2078 svm_msg_q_wait (mq);
2080 svm_msg_q_sub_w_lock (mq, &msg);
2081 e = svm_msg_q_msg_data (mq, &msg);
2082 svm_msg_q_unlock (mq);
2084 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
2085 vcl_handle_mq_event (wrk, e);
2086 svm_msg_q_free_msg (mq, &msg);
2090 et = SESSION_IO_EVT_TX;
2091 if (is_flush && !is_ct)
2092 et = SESSION_IO_EVT_TX_FLUSH;
2095 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2096 s->vpp_evt_q, buf, n, et,
2097 0 /* do_evt */ , SVM_Q_WAIT);
2099 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2100 0 /* do_evt */ , SVM_Q_WAIT);
2102 if (svm_fifo_set_event (s->tx_fifo))
2103 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
2106 ASSERT (n_write > 0);
2108 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2109 s->vpp_handle, n_write);
2115 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2117 vcl_worker_t *wrk = vcl_worker_get_current ();
2120 s = vcl_session_get_w_handle (wrk, session_handle);
2121 if (PREDICT_FALSE (!s))
2122 return VPPCOM_EBADFD;
2124 return vppcom_session_write_inline (wrk, s, buf, n,
2125 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2129 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2131 vcl_worker_t *wrk = vcl_worker_get_current ();
2134 s = vcl_session_get_w_handle (wrk, session_handle);
2135 if (PREDICT_FALSE (!s))
2136 return VPPCOM_EBADFD;
2138 return vppcom_session_write_inline (wrk, s, buf, n,
2139 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2142 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2143 if (PREDICT_FALSE (!_s->rx_fifo)) \
2145 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2147 if (!vcl_session_is_ct (_s)) \
2149 svm_fifo_unset_event (_s->rx_fifo); \
2150 if (svm_fifo_is_empty (_s->rx_fifo)) \
2153 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2155 svm_fifo_unset_event (_s->ct_rx_fifo); \
2156 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2162 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2163 unsigned long n_bits, unsigned long *read_map,
2164 unsigned long *write_map,
2165 unsigned long *except_map, u32 * bits_set)
2167 session_disconnected_msg_t *disconnected_msg;
2168 session_connected_msg_t *connected_msg;
2169 vcl_session_t *session;
2172 switch (e->event_type)
2174 case SESSION_IO_EVT_RX:
2175 sid = e->session_index;
2176 session = vcl_session_get (wrk, sid);
2177 if (!session || !vcl_session_is_open (session))
2179 vcl_fifo_rx_evt_valid_or_break (session);
2180 if (sid < n_bits && read_map)
2182 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2186 case SESSION_IO_EVT_TX:
2187 sid = e->session_index;
2188 session = vcl_session_get (wrk, sid);
2189 if (!session || !vcl_session_is_open (session))
2191 if (sid < n_bits && write_map)
2193 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2197 case SESSION_CTRL_EVT_ACCEPTED:
2198 session = vcl_session_accepted (wrk,
2199 (session_accepted_msg_t *) e->data);
2202 sid = session->session_index;
2203 if (sid < n_bits && read_map)
2205 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2209 case SESSION_CTRL_EVT_CONNECTED:
2210 connected_msg = (session_connected_msg_t *) e->data;
2211 sid = vcl_session_connected_handler (wrk, connected_msg);
2212 if (sid == VCL_INVALID_SESSION_INDEX)
2214 if (sid < n_bits && write_map)
2216 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2220 case SESSION_CTRL_EVT_DISCONNECTED:
2221 disconnected_msg = (session_disconnected_msg_t *) e->data;
2222 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2225 sid = session->session_index;
2226 if (sid < n_bits && except_map)
2228 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2232 case SESSION_CTRL_EVT_RESET:
2233 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2234 if (sid < n_bits && except_map)
2236 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2240 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2241 vcl_session_unlisten_reply_handler (wrk, e->data);
2243 case SESSION_CTRL_EVT_MIGRATED:
2244 vcl_session_migrated_handler (wrk, e->data);
2246 case SESSION_CTRL_EVT_CLEANUP:
2247 vcl_session_cleanup_handler (wrk, e->data);
2249 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2250 vcl_session_worker_update_reply_handler (wrk, e->data);
2252 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2253 vcl_session_req_worker_update_handler (wrk, e->data);
2255 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2256 vcl_session_app_add_segment_handler (wrk, e->data);
2258 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2259 vcl_session_app_del_segment_handler (wrk, e->data);
2262 clib_warning ("unhandled: %u", e->event_type);
2268 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2269 unsigned long n_bits, unsigned long *read_map,
2270 unsigned long *write_map, unsigned long *except_map,
2271 double time_to_wait, u32 * bits_set)
2273 svm_msg_q_msg_t *msg;
2277 svm_msg_q_lock (mq);
2278 if (svm_msg_q_is_empty (mq))
2282 svm_msg_q_unlock (mq);
2288 svm_msg_q_unlock (mq);
2291 else if (time_to_wait < 0)
2293 svm_msg_q_wait (mq);
2297 if (svm_msg_q_timedwait (mq, time_to_wait))
2299 svm_msg_q_unlock (mq);
2304 vcl_mq_dequeue_batch (wrk, mq, ~0);
2305 svm_msg_q_unlock (mq);
2307 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2309 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2310 e = svm_msg_q_msg_data (mq, msg);
2311 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2312 except_map, bits_set);
2313 svm_msg_q_free_msg (mq, msg);
2315 vec_reset_length (wrk->mq_msg_vector);
2316 vcl_handle_pending_wrk_updates (wrk);
2321 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2322 vcl_si_set * read_map, vcl_si_set * write_map,
2323 vcl_si_set * except_map, double time_to_wait,
2326 double wait = 0, start = 0;
2330 wait = time_to_wait;
2331 start = clib_time_now (&wrk->clib_time);
2336 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2337 write_map, except_map, wait, bits_set);
2343 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2351 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2352 vcl_si_set * read_map, vcl_si_set * write_map,
2353 vcl_si_set * except_map, double time_to_wait,
2356 vcl_mq_evt_conn_t *mqc;
2357 int __clib_unused n_read;
2361 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2362 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2363 vec_len (wrk->mq_events), time_to_wait);
2364 for (i = 0; i < n_mq_evts; i++)
2366 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2367 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2368 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2369 except_map, 0, bits_set);
2372 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2376 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2377 vcl_si_set * except_map, double time_to_wait)
2379 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2380 vcl_worker_t *wrk = vcl_worker_get_current ();
2381 vcl_session_t *session = 0;
2384 if (n_bits && read_map)
2386 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2387 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2388 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2389 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2391 if (n_bits && write_map)
2393 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2394 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2395 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2396 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2398 if (n_bits && except_map)
2400 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2401 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2402 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2403 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2413 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2414 if (!(session = vcl_session_get (wrk, sid)))
2416 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2421 if (vcl_session_write_ready (session))
2423 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2427 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2434 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2435 if (!(session = vcl_session_get (wrk, sid)))
2437 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2442 if (vcl_session_read_ready (session))
2444 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2452 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2454 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2455 read_map, write_map, except_map, &bits_set);
2457 vec_reset_length (wrk->unhandled_evts_vector);
2459 if (vcm->cfg.use_mq_eventfd)
2460 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2461 time_to_wait, &bits_set);
2463 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2464 time_to_wait, &bits_set);
2470 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2472 vcl_session_t *session;
2473 vppcom_epoll_t *vep;
2474 u32 sh = vep_handle;
2476 if (VPPCOM_DEBUG <= 2)
2479 session = vcl_session_get_w_handle (wrk, vep_handle);
2480 if (PREDICT_FALSE (!session))
2482 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2485 if (PREDICT_FALSE (!session->is_vep))
2487 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2490 vep = &session->vep;
2491 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2494 " is_vep_session = %u\n"
2495 " next_sh = 0x%x (%u)\n"
2496 "}\n", vep_handle, session->is_vep, session->is_vep_session,
2497 vep->next_sh, vep->next_sh);
2499 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2501 session = vcl_session_get_w_handle (wrk, sh);
2502 if (PREDICT_FALSE (!session))
2504 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2507 if (PREDICT_FALSE (session->is_vep))
2509 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2511 else if (PREDICT_FALSE (!session->is_vep_session))
2513 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2516 vep = &session->vep;
2517 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2518 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2519 sh, session->vep.vep_sh, vep_handle);
2520 if (session->is_vep_session)
2522 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2524 " next_sh = 0x%x (%u)\n"
2525 " prev_sh = 0x%x (%u)\n"
2526 " vep_sh = 0x%x (%u)\n"
2527 " ev.events = 0x%x\n"
2528 " ev.data.u64 = 0x%llx\n"
2531 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2532 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2533 vep->ev.data.u64, vep->et_mask);
2538 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2542 vppcom_epoll_create (void)
2544 vcl_worker_t *wrk = vcl_worker_get_current ();
2545 vcl_session_t *vep_session;
2547 vep_session = vcl_session_alloc (wrk);
2549 vep_session->is_vep = 1;
2550 vep_session->vep.vep_sh = ~0;
2551 vep_session->vep.next_sh = ~0;
2552 vep_session->vep.prev_sh = ~0;
2553 vep_session->vpp_handle = ~0;
2555 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2556 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2558 return vcl_session_handle (vep_session);
2562 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2563 struct epoll_event *event)
2565 vcl_worker_t *wrk = vcl_worker_get_current ();
2566 vcl_session_t *vep_session;
2567 vcl_session_t *session;
2570 if (vep_handle == session_handle)
2572 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2573 return VPPCOM_EINVAL;
2576 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2577 if (PREDICT_FALSE (!vep_session))
2579 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2580 return VPPCOM_EBADFD;
2582 if (PREDICT_FALSE (!vep_session->is_vep))
2584 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2585 return VPPCOM_EINVAL;
2588 ASSERT (vep_session->vep.vep_sh == ~0);
2589 ASSERT (vep_session->vep.prev_sh == ~0);
2591 session = vcl_session_get_w_handle (wrk, session_handle);
2592 if (PREDICT_FALSE (!session))
2594 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2595 return VPPCOM_EBADFD;
2597 if (PREDICT_FALSE (session->is_vep))
2599 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2600 return VPPCOM_EINVAL;
2606 if (PREDICT_FALSE (!event))
2608 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2609 return VPPCOM_EINVAL;
2611 if (vep_session->vep.next_sh != ~0)
2613 vcl_session_t *next_session;
2614 next_session = vcl_session_get_w_handle (wrk,
2615 vep_session->vep.next_sh);
2616 if (PREDICT_FALSE (!next_session))
2618 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2619 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2620 return VPPCOM_EBADFD;
2622 ASSERT (next_session->vep.prev_sh == vep_handle);
2623 next_session->vep.prev_sh = session_handle;
2625 session->vep.next_sh = vep_session->vep.next_sh;
2626 session->vep.prev_sh = vep_handle;
2627 session->vep.vep_sh = vep_handle;
2628 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2629 session->vep.ev = *event;
2630 session->is_vep = 0;
2631 session->is_vep_session = 1;
2632 vep_session->vep.next_sh = session_handle;
2634 if (session->tx_fifo)
2635 svm_fifo_add_want_deq_ntf (session->tx_fifo,
2636 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2638 /* Generate EPOLLOUT if tx fifo not full */
2639 if ((event->events & EPOLLOUT) &&
2640 (vcl_session_write_ready (session) > 0))
2642 session_event_t e = { 0 };
2643 e.event_type = SESSION_IO_EVT_TX;
2644 e.session_index = session->session_index;
2645 vec_add1 (wrk->unhandled_evts_vector, e);
2647 /* Generate EPOLLIN if rx fifo has data */
2648 if ((event->events & EPOLLIN) && (vcl_session_read_ready (session) > 0))
2650 session_event_t e = { 0 };
2651 e.event_type = SESSION_IO_EVT_RX;
2652 e.session_index = session->session_index;
2653 vec_add1 (wrk->unhandled_evts_vector, e);
2655 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2656 vep_handle, session_handle, event->events, event->data.u64);
2657 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2661 if (PREDICT_FALSE (!event))
2663 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2667 else if (PREDICT_FALSE (!session->is_vep_session))
2669 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2673 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2675 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2676 session_handle, session->vep.vep_sh, vep_handle);
2681 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2682 if ((event->events & EPOLLOUT) &&
2683 !(session->vep.ev.events & EPOLLOUT) &&
2684 (vcl_session_write_ready (session) > 0))
2686 session_event_t e = { 0 };
2687 e.event_type = SESSION_IO_EVT_TX;
2688 e.session_index = session->session_index;
2689 vec_add1 (wrk->unhandled_evts_vector, e);
2691 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2692 session->vep.ev = *event;
2693 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2694 vep_handle, session_handle, event->events, event->data.u64);
2698 if (PREDICT_FALSE (!session->is_vep_session))
2700 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2704 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2706 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2707 session_handle, session->vep.vep_sh, vep_handle);
2712 if (session->vep.prev_sh == vep_handle)
2713 vep_session->vep.next_sh = session->vep.next_sh;
2716 vcl_session_t *prev_session;
2717 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2718 if (PREDICT_FALSE (!prev_session))
2720 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2721 session->vep.prev_sh, session_handle);
2722 return VPPCOM_EBADFD;
2724 ASSERT (prev_session->vep.next_sh == session_handle);
2725 prev_session->vep.next_sh = session->vep.next_sh;
2727 if (session->vep.next_sh != ~0)
2729 vcl_session_t *next_session;
2730 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2731 if (PREDICT_FALSE (!next_session))
2733 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2734 session->vep.next_sh, session_handle);
2735 return VPPCOM_EBADFD;
2737 ASSERT (next_session->vep.prev_sh == session_handle);
2738 next_session->vep.prev_sh = session->vep.prev_sh;
2741 memset (&session->vep, 0, sizeof (session->vep));
2742 session->vep.next_sh = ~0;
2743 session->vep.prev_sh = ~0;
2744 session->vep.vep_sh = ~0;
2745 session->is_vep_session = 0;
2747 if (session->tx_fifo)
2748 svm_fifo_del_want_deq_ntf (session->tx_fifo, SVM_FIFO_NO_DEQ_NOTIF);
2750 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2752 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2756 VDBG (0, "Invalid operation (%d)!", op);
2760 vep_verify_epoll_chain (wrk, vep_handle);
2767 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2768 struct epoll_event *events, u32 * num_ev)
2770 session_disconnected_msg_t *disconnected_msg;
2771 session_connected_msg_t *connected_msg;
2772 u32 sid = ~0, session_events;
2773 u64 session_evt_data = ~0;
2774 vcl_session_t *session;
2777 switch (e->event_type)
2779 case SESSION_IO_EVT_RX:
2780 sid = e->session_index;
2781 if (!(session = vcl_session_get (wrk, sid)))
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 if (!(session = vcl_session_get (wrk, sid)))
2796 session_events = session->vep.ev.events;
2797 if (!(EPOLLOUT & session_events))
2800 events[*num_ev].events |= EPOLLOUT;
2801 session_evt_data = session->vep.ev.data.u64;
2802 svm_fifo_reset_has_deq_ntf (session->tx_fifo);
2804 case SESSION_CTRL_EVT_ACCEPTED:
2805 session = vcl_session_accepted (wrk,
2806 (session_accepted_msg_t *) e->data);
2810 session_events = session->vep.ev.events;
2811 if (!(EPOLLIN & session_events))
2815 events[*num_ev].events |= EPOLLIN;
2816 session_evt_data = session->vep.ev.data.u64;
2818 case SESSION_CTRL_EVT_CONNECTED:
2819 connected_msg = (session_connected_msg_t *) e->data;
2820 sid = vcl_session_connected_handler (wrk, connected_msg);
2821 /* Generate EPOLLOUT because there's no connected event */
2822 if (!(session = vcl_session_get (wrk, sid)))
2824 session_events = session->vep.ev.events;
2825 if (!(EPOLLOUT & session_events))
2828 events[*num_ev].events |= EPOLLOUT;
2829 session_evt_data = session->vep.ev.data.u64;
2830 if (session->session_state & STATE_DETACHED)
2831 events[*num_ev].events |= EPOLLHUP;
2833 case SESSION_CTRL_EVT_DISCONNECTED:
2834 disconnected_msg = (session_disconnected_msg_t *) e->data;
2835 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2838 session_events = session->vep.ev.events;
2840 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2841 session_evt_data = session->vep.ev.data.u64;
2843 case SESSION_CTRL_EVT_RESET:
2844 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2845 if (!(session = vcl_session_get (wrk, sid)))
2847 session_events = session->vep.ev.events;
2849 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2850 session_evt_data = session->vep.ev.data.u64;
2852 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2853 vcl_session_unlisten_reply_handler (wrk, e->data);
2855 case SESSION_CTRL_EVT_MIGRATED:
2856 vcl_session_migrated_handler (wrk, e->data);
2858 case SESSION_CTRL_EVT_CLEANUP:
2859 vcl_session_cleanup_handler (wrk, e->data);
2861 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2862 vcl_session_req_worker_update_handler (wrk, e->data);
2864 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2865 vcl_session_worker_update_reply_handler (wrk, e->data);
2867 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2868 vcl_session_app_add_segment_handler (wrk, e->data);
2870 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2871 vcl_session_app_del_segment_handler (wrk, e->data);
2874 VDBG (0, "unhandled: %u", e->event_type);
2880 events[*num_ev].data.u64 = session_evt_data;
2881 if (EPOLLONESHOT & session_events)
2883 session = vcl_session_get (wrk, sid);
2884 session->vep.ev.events = 0;
2891 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2892 struct epoll_event *events, u32 maxevents,
2893 double wait_for_time, u32 * num_ev)
2895 svm_msg_q_msg_t *msg;
2899 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2900 goto handle_dequeued;
2902 svm_msg_q_lock (mq);
2903 if (svm_msg_q_is_empty (mq))
2907 svm_msg_q_unlock (mq);
2910 else if (wait_for_time < 0)
2912 svm_msg_q_wait (mq);
2916 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2918 svm_msg_q_unlock (mq);
2923 ASSERT (maxevents > *num_ev);
2924 vcl_mq_dequeue_batch (wrk, mq, ~0);
2925 svm_msg_q_unlock (mq);
2928 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2930 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2931 e = svm_msg_q_msg_data (mq, msg);
2932 if (*num_ev < maxevents)
2933 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2935 vcl_handle_mq_event (wrk, e);
2936 svm_msg_q_free_msg (mq, msg);
2938 vec_reset_length (wrk->mq_msg_vector);
2939 vcl_handle_pending_wrk_updates (wrk);
2944 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2945 int maxevents, u32 n_evts, double wait_for_time)
2947 double wait = 0, start = 0, now;
2951 wait = wait_for_time;
2952 start = clib_time_now (&wrk->clib_time);
2957 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2964 now = clib_time_now (&wrk->clib_time);
2965 wait -= now - start;
2974 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2975 int maxevents, u32 n_evts, double wait_for_time)
2977 vcl_mq_evt_conn_t *mqc;
2978 int __clib_unused n_read;
2982 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2984 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2985 vec_len (wrk->mq_events), wait_for_time);
2986 for (i = 0; i < n_mq_evts; i++)
2988 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2989 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2990 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
2992 if (!n_evts && n_mq_evts > 0)
2995 return (int) n_evts;
2999 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3000 int maxevents, double wait_for_time)
3002 vcl_worker_t *wrk = vcl_worker_get_current ();
3003 vcl_session_t *vep_session;
3007 if (PREDICT_FALSE (maxevents <= 0))
3009 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3010 return VPPCOM_EINVAL;
3013 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3015 return VPPCOM_EBADFD;
3017 if (PREDICT_FALSE (!vep_session->is_vep))
3019 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3020 return VPPCOM_EINVAL;
3023 memset (events, 0, sizeof (*events) * maxevents);
3025 if (vec_len (wrk->unhandled_evts_vector))
3027 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3029 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3031 if (n_evts == maxevents)
3033 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3037 vec_reset_length (wrk->unhandled_evts_vector);
3040 if (vcm->cfg.use_mq_eventfd)
3041 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3044 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3049 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3050 void *buffer, uint32_t * buflen)
3052 vcl_worker_t *wrk = vcl_worker_get_current ();
3053 vcl_session_t *session;
3055 u32 *flags = buffer, tmp_flags = 0;
3056 vppcom_endpt_t *ep = buffer;
3058 session = vcl_session_get_w_handle (wrk, session_handle);
3060 return VPPCOM_EBADFD;
3064 case VPPCOM_ATTR_GET_NREAD:
3065 rv = vcl_session_read_ready (session);
3066 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3070 case VPPCOM_ATTR_GET_NWRITE:
3071 rv = vcl_session_write_ready (session);
3072 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3076 case VPPCOM_ATTR_GET_FLAGS:
3077 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3079 *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr,
3080 VCL_SESS_ATTR_NONBLOCK));
3081 *buflen = sizeof (*flags);
3082 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3083 "is_nonblocking = %u", session_handle, *flags,
3084 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3090 case VPPCOM_ATTR_SET_FLAGS:
3091 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3093 if (*flags & O_NONBLOCK)
3094 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
3096 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
3098 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3099 " is_nonblocking = %u", session_handle, *flags,
3100 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3106 case VPPCOM_ATTR_GET_PEER_ADDR:
3107 if (PREDICT_TRUE (buffer && buflen &&
3108 (*buflen >= sizeof (*ep)) && ep->ip))
3110 ep->is_ip4 = session->transport.is_ip4;
3111 ep->port = session->transport.rmt_port;
3112 if (session->transport.is_ip4)
3113 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3114 sizeof (ip4_address_t));
3116 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3117 sizeof (ip6_address_t));
3118 *buflen = sizeof (*ep);
3119 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3120 "addr = %U, port %u", session_handle, ep->is_ip4,
3121 format_ip46_address, &session->transport.rmt_ip,
3122 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3123 clib_net_to_host_u16 (ep->port));
3129 case VPPCOM_ATTR_GET_LCL_ADDR:
3130 if (PREDICT_TRUE (buffer && buflen &&
3131 (*buflen >= sizeof (*ep)) && ep->ip))
3133 ep->is_ip4 = session->transport.is_ip4;
3134 ep->port = session->transport.lcl_port;
3135 if (session->transport.is_ip4)
3136 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3137 sizeof (ip4_address_t));
3139 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3140 sizeof (ip6_address_t));
3141 *buflen = sizeof (*ep);
3142 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3143 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3144 &session->transport.lcl_ip,
3145 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3146 clib_net_to_host_u16 (ep->port));
3152 case VPPCOM_ATTR_SET_LCL_ADDR:
3153 if (PREDICT_TRUE (buffer && buflen &&
3154 (*buflen >= sizeof (*ep)) && ep->ip))
3156 session->transport.is_ip4 = ep->is_ip4;
3157 session->transport.lcl_port = ep->port;
3158 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3159 *buflen = sizeof (*ep);
3160 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3161 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3162 &session->transport.lcl_ip,
3163 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3164 clib_net_to_host_u16 (ep->port));
3170 case VPPCOM_ATTR_GET_LIBC_EPFD:
3171 rv = session->libc_epfd;
3172 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3175 case VPPCOM_ATTR_SET_LIBC_EPFD:
3176 if (PREDICT_TRUE (buffer && buflen &&
3177 (*buflen == sizeof (session->libc_epfd))))
3179 session->libc_epfd = *(int *) buffer;
3180 *buflen = sizeof (session->libc_epfd);
3182 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3183 session->libc_epfd, *buflen);
3189 case VPPCOM_ATTR_GET_PROTOCOL:
3190 if (buffer && buflen && (*buflen >= sizeof (int)))
3192 *(int *) buffer = session->session_type;
3193 *buflen = sizeof (int);
3195 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3196 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3202 case VPPCOM_ATTR_GET_LISTEN:
3203 if (buffer && buflen && (*buflen >= sizeof (int)))
3205 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3206 VCL_SESS_ATTR_LISTEN);
3207 *buflen = sizeof (int);
3209 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3216 case VPPCOM_ATTR_GET_ERROR:
3217 if (buffer && buflen && (*buflen >= sizeof (int)))
3219 *(int *) buffer = 0;
3220 *buflen = sizeof (int);
3222 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3223 *(int *) buffer, *buflen);
3229 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3230 if (buffer && buflen && (*buflen >= sizeof (u32)))
3234 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3236 svm_fifo_size (session->tx_fifo) :
3237 vcm->cfg.tx_fifo_size);
3238 *buflen = sizeof (u32);
3240 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3241 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3248 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3249 if (buffer && buflen && (*buflen == sizeof (u32)))
3252 session->sndbuf_size = *(u32 *) buffer;
3253 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3254 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3261 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3262 if (buffer && buflen && (*buflen >= sizeof (u32)))
3266 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3268 svm_fifo_size (session->rx_fifo) :
3269 vcm->cfg.rx_fifo_size);
3270 *buflen = sizeof (u32);
3272 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3273 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3279 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3280 if (buffer && buflen && (*buflen == sizeof (u32)))
3283 session->rcvbuf_size = *(u32 *) buffer;
3284 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3285 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3292 case VPPCOM_ATTR_GET_REUSEADDR:
3293 if (buffer && buflen && (*buflen >= sizeof (int)))
3296 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3297 VCL_SESS_ATTR_REUSEADDR);
3298 *buflen = sizeof (int);
3300 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3301 *(int *) buffer, *buflen);
3307 case VPPCOM_ATTR_SET_REUSEADDR:
3308 if (buffer && buflen && (*buflen == sizeof (int)) &&
3309 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3312 if (*(int *) buffer)
3313 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
3315 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
3317 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3318 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEADDR),
3325 case VPPCOM_ATTR_GET_REUSEPORT:
3326 if (buffer && buflen && (*buflen >= sizeof (int)))
3329 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3330 VCL_SESS_ATTR_REUSEPORT);
3331 *buflen = sizeof (int);
3333 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3334 *(int *) buffer, *buflen);
3340 case VPPCOM_ATTR_SET_REUSEPORT:
3341 if (buffer && buflen && (*buflen == sizeof (int)) &&
3342 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3345 if (*(int *) buffer)
3346 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
3348 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
3350 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3351 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEPORT),
3358 case VPPCOM_ATTR_GET_BROADCAST:
3359 if (buffer && buflen && (*buflen >= sizeof (int)))
3362 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3363 VCL_SESS_ATTR_BROADCAST);
3364 *buflen = sizeof (int);
3366 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3367 *(int *) buffer, *buflen);
3373 case VPPCOM_ATTR_SET_BROADCAST:
3374 if (buffer && buflen && (*buflen == sizeof (int)))
3377 if (*(int *) buffer)
3378 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
3380 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
3382 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3383 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_BROADCAST),
3390 case VPPCOM_ATTR_GET_V6ONLY:
3391 if (buffer && buflen && (*buflen >= sizeof (int)))
3394 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3395 VCL_SESS_ATTR_V6ONLY);
3396 *buflen = sizeof (int);
3398 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3399 *(int *) buffer, *buflen);
3405 case VPPCOM_ATTR_SET_V6ONLY:
3406 if (buffer && buflen && (*buflen == sizeof (int)))
3409 if (*(int *) buffer)
3410 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
3412 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
3414 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3415 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_V6ONLY),
3422 case VPPCOM_ATTR_GET_KEEPALIVE:
3423 if (buffer && buflen && (*buflen >= sizeof (int)))
3426 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3427 VCL_SESS_ATTR_KEEPALIVE);
3428 *buflen = sizeof (int);
3430 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3431 *(int *) buffer, *buflen);
3437 case VPPCOM_ATTR_SET_KEEPALIVE:
3438 if (buffer && buflen && (*buflen == sizeof (int)))
3441 if (*(int *) buffer)
3442 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3444 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3446 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3447 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_KEEPALIVE),
3454 case VPPCOM_ATTR_GET_TCP_NODELAY:
3455 if (buffer && buflen && (*buflen >= sizeof (int)))
3458 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3459 VCL_SESS_ATTR_TCP_NODELAY);
3460 *buflen = sizeof (int);
3462 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3463 *(int *) buffer, *buflen);
3469 case VPPCOM_ATTR_SET_TCP_NODELAY:
3470 if (buffer && buflen && (*buflen == sizeof (int)))
3473 if (*(int *) buffer)
3474 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3476 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3478 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3479 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_NODELAY),
3486 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3487 if (buffer && buflen && (*buflen >= sizeof (int)))
3490 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3491 VCL_SESS_ATTR_TCP_KEEPIDLE);
3492 *buflen = sizeof (int);
3494 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3495 *(int *) buffer, *buflen);
3501 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3502 if (buffer && buflen && (*buflen == sizeof (int)))
3505 if (*(int *) buffer)
3506 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3508 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3510 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3511 VCL_SESS_ATTR_TEST (session->attr,
3512 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3518 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3519 if (buffer && buflen && (*buflen >= sizeof (int)))
3522 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3523 VCL_SESS_ATTR_TCP_KEEPINTVL);
3524 *buflen = sizeof (int);
3526 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3527 *(int *) buffer, *buflen);
3533 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3534 if (buffer && buflen && (*buflen == sizeof (int)))
3537 if (*(int *) buffer)
3538 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3540 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3542 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3543 VCL_SESS_ATTR_TEST (session->attr,
3544 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3550 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3551 if (buffer && buflen && (*buflen >= sizeof (u32)))
3554 *(u32 *) buffer = session->user_mss;
3555 *buflen = sizeof (int);
3557 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3558 *(int *) buffer, *buflen);
3564 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3565 if (buffer && buflen && (*buflen == sizeof (u32)))
3568 session->user_mss = *(u32 *) buffer;
3570 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3571 session->user_mss, *buflen);
3577 case VPPCOM_ATTR_SET_SHUT:
3578 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3579 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3580 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3581 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3584 case VPPCOM_ATTR_GET_SHUT:
3585 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3587 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3590 *(int *) buffer = SHUT_RD;
3591 else if (tmp_flags == 2)
3592 *(int *) buffer = SHUT_WR;
3593 else if (tmp_flags == 3)
3594 *(int *) buffer = SHUT_RDWR;
3595 *buflen = sizeof (int);
3598 case VPPCOM_ATTR_SET_CONNECTED:
3599 session->flags |= VCL_SESSION_F_CONNECTED;
3611 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3612 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3614 vcl_worker_t *wrk = vcl_worker_get_current ();
3615 vcl_session_t *session;
3619 rv = vppcom_session_read (session_handle, buffer, buflen);
3620 else if (flags & MSG_PEEK)
3621 rv = vppcom_session_peek (session_handle, buffer, buflen);
3624 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3625 return VPPCOM_EAFNOSUPPORT;
3630 session = vcl_session_get_w_handle (wrk, session_handle);
3631 if (session->transport.is_ip4)
3632 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3633 sizeof (ip4_address_t));
3635 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3636 sizeof (ip6_address_t));
3637 ep->is_ip4 = session->transport.is_ip4;
3638 ep->port = session->transport.rmt_port;
3645 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3646 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3648 vcl_worker_t *wrk = vcl_worker_get_current ();
3651 s = vcl_session_get_w_handle (wrk, session_handle);
3653 return VPPCOM_EBADFD;
3656 return VPPCOM_EINVAL;
3660 if (s->session_type != VPPCOM_PROTO_UDP
3661 || (s->flags & VCL_SESSION_F_CONNECTED))
3662 return VPPCOM_EINVAL;
3664 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3665 if (PREDICT_FALSE (s->session_state == STATE_CLOSED))
3667 vcl_send_session_connect (wrk, s);
3671 s->transport.is_ip4 = ep->is_ip4;
3672 s->transport.rmt_port = ep->port;
3673 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3679 // TBD check the flags and do the right thing
3680 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3683 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3684 s->is_dgram ? 1 : 0));
3688 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3690 vcl_worker_t *wrk = vcl_worker_get_current ();
3691 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3692 u32 i, keep_trying = 1;
3693 svm_msg_q_msg_t msg;
3697 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3700 return VPPCOM_EFAULT;
3704 vcl_session_t *session;
3706 /* Dequeue all events and drop all unhandled io events */
3707 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3709 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3710 vcl_handle_mq_event (wrk, e);
3711 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3713 vec_reset_length (wrk->unhandled_evts_vector);
3715 for (i = 0; i < n_sids; i++)
3717 session = vcl_session_get (wrk, vp[i].sh);
3720 vp[i].revents = POLLHUP;
3727 if (POLLIN & vp[i].events)
3729 rv = vcl_session_read_ready (session);
3732 vp[i].revents |= POLLIN;
3739 case VPPCOM_ECONNRESET:
3740 vp[i].revents = POLLHUP;
3744 vp[i].revents = POLLERR;
3751 if (POLLOUT & vp[i].events)
3753 rv = vcl_session_write_ready (session);
3756 vp[i].revents |= POLLOUT;
3763 case VPPCOM_ECONNRESET:
3764 vp[i].revents = POLLHUP;
3768 vp[i].revents = POLLERR;
3775 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3777 vp[i].revents = POLLNVAL;
3781 if (wait_for_time != -1)
3782 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3784 while ((num_ev == 0) && keep_trying);
3790 vppcom_mq_epoll_fd (void)
3792 vcl_worker_t *wrk = vcl_worker_get_current ();
3793 return wrk->mqs_epfd;
3797 vppcom_session_index (vcl_session_handle_t session_handle)
3799 return session_handle & 0xFFFFFF;
3803 vppcom_session_worker (vcl_session_handle_t session_handle)
3805 return session_handle >> 24;
3809 vppcom_worker_register (void)
3815 if (!vcl_worker_alloc_and_init ())
3816 return VPPCOM_EEXIST;
3818 wrk = vcl_worker_get_current ();
3819 wrk_name = format (0, "%s-wrk-%u", vcm->app_name, wrk->wrk_index);
3821 rv = vppcom_connect_to_vpp ((char *) wrk_name);
3822 vec_free (wrk_name);
3825 return VPPCOM_EFAULT;
3827 if (vcl_worker_register_with_vpp ())
3828 return VPPCOM_EEXIST;
3834 vppcom_worker_unregister (void)
3836 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3837 vcl_set_worker_index (~0);
3841 vppcom_worker_index_set (int index)
3843 vcl_set_worker_index (index);
3847 vppcom_worker_index (void)
3849 return vcl_get_worker_index ();
3853 vppcom_worker_mqs_epfd (void)
3855 vcl_worker_t *wrk = vcl_worker_get_current ();
3856 if (!vcm->cfg.use_mq_eventfd)
3858 return wrk->mqs_epfd;
3862 vppcom_session_is_connectable_listener (uint32_t session_handle)
3864 vcl_session_t *session;
3865 vcl_worker_t *wrk = vcl_worker_get_current ();
3866 session = vcl_session_get_w_handle (wrk, session_handle);
3868 return VPPCOM_EBADFD;
3869 return vcl_session_is_connectable_listener (wrk, session);
3873 vppcom_session_listener (uint32_t session_handle)
3875 vcl_worker_t *wrk = vcl_worker_get_current ();
3876 vcl_session_t *listen_session, *session;
3877 session = vcl_session_get_w_handle (wrk, session_handle);
3879 return VPPCOM_EBADFD;
3880 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3881 return VPPCOM_EBADFD;
3882 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3883 if (!listen_session)
3884 return VPPCOM_EBADFD;
3885 return vcl_session_handle (listen_session);
3889 vppcom_session_n_accepted (uint32_t session_handle)
3891 vcl_worker_t *wrk = vcl_worker_get_current ();
3892 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3894 return VPPCOM_EBADFD;
3895 return session->n_accepted_sessions;
3899 * fd.io coding-style-patch-verification: ON
3902 * eval: (c-set-style "gnu")