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 if (session->session_state != STATE_CLOSED)
556 session->session_state = STATE_DISCONNECT;
557 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
562 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
564 vcl_session_t *session;
565 u32 sid = mp->context;
567 session = vcl_session_get (wrk, sid);
570 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
571 format_session_error, mp->retval);
574 session->session_state = STATE_DETACHED;
575 session->vpp_handle = mp->handle;
580 VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!",
582 return VCL_INVALID_SESSION_INDEX;
586 session->vpp_handle = mp->handle;
587 session->transport.is_ip4 = mp->lcl_is_ip4;
588 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
589 sizeof (ip46_address_t));
590 session->transport.lcl_port = mp->lcl_port;
591 vcl_session_table_add_listener (wrk, mp->handle, sid);
592 session->session_state = STATE_LISTEN;
594 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
595 vec_validate (wrk->vpp_event_queues, 0);
596 wrk->vpp_event_queues[0] = session->vpp_evt_q;
598 if (vcl_session_is_cl (session))
600 svm_fifo_t *rx_fifo, *tx_fifo;
601 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
602 rx_fifo = uword_to_pointer (mp->rx_fifo, svm_fifo_t *);
603 rx_fifo->client_session_index = sid;
604 tx_fifo = uword_to_pointer (mp->tx_fifo, svm_fifo_t *);
605 tx_fifo->client_session_index = sid;
606 session->rx_fifo = rx_fifo;
607 session->tx_fifo = tx_fifo;
610 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
615 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
617 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
620 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
623 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
626 if (s->session_state != STATE_DISCONNECT)
628 /* Connected udp listener */
629 if (s->session_type == VPPCOM_PROTO_UDP
630 && s->session_state == STATE_CLOSED)
633 VDBG (0, "Unlisten session in wrong state %llx", mp->handle);
638 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
639 s->session_index, mp->handle, format_session_error, mp->retval);
641 if (mp->context != wrk->wrk_index)
642 VDBG (0, "wrong context");
644 vcl_session_table_del_vpp_handle (wrk, mp->handle);
645 vcl_session_free (wrk, s);
649 vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
651 session_migrated_msg_t *mp = (session_migrated_msg_t *) data;
654 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
657 VDBG (0, "Migrated notification with wrong handle %llx", mp->handle);
661 s->vpp_thread_index = mp->vpp_thread_index;
662 s->vpp_handle = mp->new_handle;
663 s->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
665 vec_validate (wrk->vpp_event_queues, s->vpp_thread_index);
666 wrk->vpp_event_queues[s->vpp_thread_index] = s->vpp_evt_q;
668 vcl_session_table_del_vpp_handle (wrk, mp->handle);
669 vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
671 /* Generate new tx event if we have outstanding data */
672 if (svm_fifo_has_event (s->tx_fifo))
673 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
674 SESSION_IO_EVT_TX, SVM_Q_WAIT);
676 VDBG (0, "Migrated 0x%lx to thread %u 0x%lx", mp->handle,
677 s->vpp_thread_index, mp->new_handle);
680 static vcl_session_t *
681 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
683 vcl_session_msg_t *vcl_msg;
684 vcl_session_t *session;
686 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
687 if (PREDICT_FALSE (session != 0))
688 VWRN ("session overlap handle %lu state %u!", msg->handle,
689 session->session_state);
691 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
694 VERR ("couldn't find listen session: listener handle %llx",
695 msg->listener_handle);
699 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
701 vcl_msg->accepted_msg = *msg;
702 /* Session handle points to listener until fully accepted by app */
703 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
708 static vcl_session_t *
709 vcl_session_disconnected_handler (vcl_worker_t * wrk,
710 session_disconnected_msg_t * msg)
712 vcl_session_t *session;
714 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
717 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
721 /* Late disconnect notification on a session that has been closed */
722 if (session->session_state == STATE_CLOSED)
725 /* Caught a disconnect before actually accepting the session */
726 if (session->session_state == STATE_LISTEN)
728 if (!vcl_flag_accepted_session (session, msg->handle,
729 VCL_ACCEPTED_F_CLOSED))
730 VDBG (0, "session was not accepted!");
734 /* If not already reset change state */
735 if (session->session_state != STATE_DISCONNECT)
736 session->session_state = STATE_VPP_CLOSING;
742 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
744 session_cleanup_msg_t *msg;
745 vcl_session_t *session;
747 msg = (session_cleanup_msg_t *) data;
748 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
751 VDBG (0, "disconnect confirmed for unknown handle 0x%llx", msg->handle);
755 if (msg->type == SESSION_CLEANUP_TRANSPORT)
757 /* Transport was cleaned up before we confirmed close. Probably the
758 * app is still waiting for some data that cannot be delivered.
759 * Confirm close to make sure everything is cleaned up */
760 if (session->session_state == STATE_VPP_CLOSING)
761 vcl_session_cleanup (wrk, session, vcl_session_handle (session),
762 1 /* do_disconnect */ );
766 vcl_session_table_del_vpp_handle (wrk, msg->handle);
767 /* Should not happen. App did not close the connection so don't free it. */
768 if (session->session_state != STATE_CLOSED)
770 VDBG (0, "app did not close session %d", session->session_index);
771 session->session_state = STATE_DETACHED;
772 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
775 vcl_session_free (wrk, session);
779 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
781 session_req_worker_update_msg_t *msg;
784 msg = (session_req_worker_update_msg_t *) data;
785 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
789 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
793 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
795 session_worker_update_reply_msg_t *msg;
798 msg = (session_worker_update_reply_msg_t *) data;
799 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
802 VDBG (0, "unknown handle 0x%llx", msg->handle);
805 if (vcl_segment_is_not_mounted (wrk, msg->segment_handle))
807 clib_warning ("segment for session %u is not mounted!",
814 s->rx_fifo = uword_to_pointer (msg->rx_fifo, svm_fifo_t *);
815 s->tx_fifo = uword_to_pointer (msg->tx_fifo, svm_fifo_t *);
816 s->rx_fifo->client_session_index = s->session_index;
817 s->tx_fifo->client_session_index = s->session_index;
818 s->rx_fifo->client_thread_index = wrk->wrk_index;
819 s->tx_fifo->client_thread_index = wrk->wrk_index;
821 s->session_state = STATE_UPDATED;
823 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
824 s->vpp_handle, wrk->wrk_index);
828 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
830 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
831 session_app_add_segment_msg_t *msg;
835 msg = (session_app_add_segment_msg_t *) data;
839 vl_socket_client_recv_fd_msg2 (&wrk->bapi_sock_ctx, &fd, 1, 5);
840 seg_type = SSVM_SEGMENT_MEMFD;
843 segment_handle = msg->segment_handle;
844 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
846 clib_warning ("invalid segment handle");
850 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
853 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
857 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
862 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
864 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
865 vcl_segment_detach (msg->segment_handle);
866 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
870 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
872 session_disconnected_msg_t *disconnected_msg;
873 vcl_session_t *session;
875 switch (e->event_type)
877 case SESSION_IO_EVT_RX:
878 case SESSION_IO_EVT_TX:
879 session = vcl_session_get (wrk, e->session_index);
880 if (!session || !(session->session_state & STATE_OPEN))
882 vec_add1 (wrk->unhandled_evts_vector, *e);
884 case SESSION_CTRL_EVT_ACCEPTED:
885 vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
887 case SESSION_CTRL_EVT_CONNECTED:
888 vcl_session_connected_handler (wrk,
889 (session_connected_msg_t *) e->data);
891 case SESSION_CTRL_EVT_DISCONNECTED:
892 disconnected_msg = (session_disconnected_msg_t *) e->data;
893 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
896 VDBG (0, "disconnected session %u [0x%llx]", session->session_index,
897 session->vpp_handle);
899 case SESSION_CTRL_EVT_RESET:
900 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
902 case SESSION_CTRL_EVT_BOUND:
903 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
905 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
906 vcl_session_unlisten_reply_handler (wrk, e->data);
908 case SESSION_CTRL_EVT_MIGRATED:
909 vcl_session_migrated_handler (wrk, e->data);
911 case SESSION_CTRL_EVT_CLEANUP:
912 vcl_session_cleanup_handler (wrk, e->data);
914 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
915 vcl_session_req_worker_update_handler (wrk, e->data);
917 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
918 vcl_session_worker_update_reply_handler (wrk, e->data);
920 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
921 vcl_session_app_add_segment_handler (wrk, e->data);
923 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
924 vcl_session_app_del_segment_handler (wrk, e->data);
927 clib_warning ("unhandled %u", e->event_type);
933 vppcom_wait_for_session_state_change (u32 session_index,
934 vcl_session_state_t state,
937 vcl_worker_t *wrk = vcl_worker_get_current ();
938 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
939 vcl_session_t *volatile session;
945 session = vcl_session_get (wrk, session_index);
946 if (PREDICT_FALSE (!session))
948 return VPPCOM_EBADFD;
950 if (session->session_state & state)
954 if (session->session_state & STATE_DETACHED)
956 return VPPCOM_ECONNREFUSED;
959 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
964 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
965 vcl_handle_mq_event (wrk, e);
966 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
968 while (clib_time_now (&wrk->clib_time) < timeout);
970 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
971 vppcom_session_state_str (state));
972 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
974 return VPPCOM_ETIMEDOUT;
978 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
980 vcl_session_state_t state;
984 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
987 vec_foreach (sip, wrk->pending_session_wrk_updates)
989 s = vcl_session_get (wrk, *sip);
990 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
991 state = s->session_state;
992 vppcom_wait_for_session_state_change (s->session_index, STATE_UPDATED, 5);
993 s->session_state = state;
995 vec_reset_length (wrk->pending_session_wrk_updates);
999 vcl_flush_mq_events (void)
1001 vcl_worker_t *wrk = vcl_worker_get_current ();
1002 svm_msg_q_msg_t *msg;
1007 mq = wrk->app_event_queue;
1008 svm_msg_q_lock (mq);
1009 vcl_mq_dequeue_batch (wrk, mq, ~0);
1010 svm_msg_q_unlock (mq);
1012 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1014 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1015 e = svm_msg_q_msg_data (mq, msg);
1016 vcl_handle_mq_event (wrk, e);
1017 svm_msg_q_free_msg (mq, msg);
1019 vec_reset_length (wrk->mq_msg_vector);
1020 vcl_handle_pending_wrk_updates (wrk);
1024 vppcom_app_session_enable (void)
1028 if (vcm->app_state != STATE_APP_ENABLED)
1030 vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
1031 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
1032 if (PREDICT_FALSE (rv))
1034 VDBG (0, "application session enable timed out! returning %d (%s)",
1035 rv, vppcom_retval_str (rv));
1043 vppcom_app_attach (void)
1047 vppcom_app_send_attach ();
1048 rv = vcl_wait_for_app_state_change (STATE_APP_ATTACHED);
1049 if (PREDICT_FALSE (rv))
1051 VDBG (0, "application attach timed out! returning %d (%s)", rv,
1052 vppcom_retval_str (rv));
1060 vppcom_session_unbind (u32 session_handle)
1062 vcl_worker_t *wrk = vcl_worker_get_current ();
1063 session_accepted_msg_t *accepted_msg;
1064 vcl_session_t *session = 0;
1065 vcl_session_msg_t *evt;
1067 session = vcl_session_get_w_handle (wrk, session_handle);
1069 return VPPCOM_EBADFD;
1071 /* Flush pending accept events, if any */
1072 while (clib_fifo_elts (session->accept_evts_fifo))
1074 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1075 accepted_msg = &evt->accepted_msg;
1076 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1077 vcl_send_session_accepted_reply (session->vpp_evt_q,
1078 accepted_msg->context,
1079 session->vpp_handle, -1);
1081 clib_fifo_free (session->accept_evts_fifo);
1083 vcl_send_session_unlisten (wrk, session);
1085 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1086 session->vpp_handle);
1087 vcl_evt (VCL_EVT_UNBIND, session);
1089 session->vpp_handle = ~0;
1090 session->session_state = STATE_DISCONNECT;
1096 vppcom_session_disconnect (u32 session_handle)
1098 vcl_worker_t *wrk = vcl_worker_get_current ();
1099 svm_msg_q_t *vpp_evt_q;
1100 vcl_session_t *session, *listen_session;
1101 vcl_session_state_t state;
1104 session = vcl_session_get_w_handle (wrk, session_handle);
1106 return VPPCOM_EBADFD;
1108 vpp_handle = session->vpp_handle;
1109 state = session->session_state;
1111 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
1112 vpp_handle, state, vppcom_session_state_str (state));
1114 if (PREDICT_FALSE (state & STATE_LISTEN))
1116 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
1117 return VPPCOM_EBADFD;
1120 if (state & STATE_VPP_CLOSING)
1122 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
1123 vcl_send_session_disconnected_reply (vpp_evt_q, wrk->my_client_index,
1125 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
1126 session->session_index, vpp_handle);
1130 VDBG (1, "session %u [0x%llx]: sending disconnect...",
1131 session->session_index, vpp_handle);
1132 vcl_send_session_disconnect (wrk, session);
1135 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
1137 listen_session = vcl_session_get (wrk, session->listener_index);
1138 listen_session->n_accepted_sessions--;
1147 * Notify vpp of the disconnect and mark the worker as free. If we're the
1148 * last worker, do a full cleanup otherwise, since we're probably a forked
1149 * child, avoid syscalls as much as possible. We might've lost privileges.
1152 vppcom_app_exit (void)
1154 if (!pool_elts (vcm->workers))
1156 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1157 vcl_set_worker_index (~0);
1158 vcl_elog_stop (vcm);
1162 * VPPCOM Public API functions
1165 vppcom_app_create (const char *app_name)
1167 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1172 VDBG (1, "already initialized");
1173 return VPPCOM_EEXIST;
1177 vppcom_cfg (&vcm->cfg);
1178 vcl_cfg = &vcm->cfg;
1180 vcm->main_cpu = pthread_self ();
1181 vcm->main_pid = getpid ();
1182 vcm->app_name = format (0, "%s", app_name);
1183 vppcom_init_error_string_table ();
1184 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1185 20 /* timeout in secs */ );
1186 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1187 clib_spinlock_init (&vcm->workers_lock);
1188 clib_rwlock_init (&vcm->segment_table_lock);
1189 atexit (vppcom_app_exit);
1191 /* Allocate default worker */
1192 vcl_worker_alloc_and_init ();
1194 /* API hookup and connect to VPP */
1195 vcl_elog_init (vcm);
1196 vcm->app_state = STATE_APP_START;
1197 rv = vppcom_connect_to_vpp (app_name);
1200 VERR ("couldn't connect to VPP!");
1203 VDBG (0, "sending session enable");
1204 rv = vppcom_app_session_enable ();
1207 VERR ("vppcom_app_session_enable() failed!");
1211 VDBG (0, "sending app attach");
1212 rv = vppcom_app_attach ();
1215 VERR ("vppcom_app_attach() failed!");
1219 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1220 vcm->workers[0].my_client_index, vcm->workers[0].my_client_index);
1226 vppcom_app_destroy (void)
1228 vcl_worker_t *wrk, *current_wrk;
1229 struct dlmallinfo mi;
1232 if (!pool_elts (vcm->workers))
1235 vcl_evt (VCL_EVT_DETACH, vcm);
1237 current_wrk = vcl_worker_get_current ();
1240 pool_foreach (wrk, vcm->workers, ({
1241 if (current_wrk != wrk)
1242 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1246 vcl_send_app_detach (current_wrk);
1247 vppcom_disconnect_from_vpp ();
1248 vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
1250 vcl_elog_stop (vcm);
1253 * Free the heap and fix vcm
1255 heap = clib_mem_get_heap ();
1256 mi = mspace_mallinfo (heap);
1257 munmap (mspace_least_addr (heap), mi.arena);
1259 vcm = &_vppcom_main;
1264 vppcom_session_create (u8 proto, u8 is_nonblocking)
1266 vcl_worker_t *wrk = vcl_worker_get_current ();
1267 vcl_session_t *session;
1269 session = vcl_session_alloc (wrk);
1271 session->session_type = proto;
1272 session->session_state = STATE_CLOSED;
1273 session->vpp_handle = ~0;
1274 session->is_dgram = vcl_proto_is_dgram (proto);
1277 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
1279 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1280 is_nonblocking, session_index);
1282 VDBG (0, "created session %u", session->session_index);
1284 return vcl_session_handle (session);
1288 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * session,
1289 vcl_session_handle_t sh, u8 do_disconnect)
1291 vcl_session_state_t state;
1292 u32 next_sh, vep_sh;
1297 is_vep = session->is_vep;
1298 next_sh = session->vep.next_sh;
1299 vep_sh = session->vep.vep_sh;
1300 state = session->session_state;
1301 vpp_handle = session->vpp_handle;
1303 VDBG (1, "session %u [0x%llx] closing", session->session_index, vpp_handle);
1307 while (next_sh != ~0)
1309 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1310 if (PREDICT_FALSE (rv < 0))
1311 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1312 " failed! rv %d (%s)", vpp_handle, next_sh, vep_sh, rv,
1313 vppcom_retval_str (rv));
1315 next_sh = session->vep.next_sh;
1320 if (session->is_vep_session)
1322 rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, sh, 0);
1324 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1325 "failed! rv %d (%s)", session->session_index, vpp_handle,
1326 vep_sh, rv, vppcom_retval_str (rv));
1331 VDBG (1, "session %u [0x%llx] disconnect skipped",
1332 session->session_index, vpp_handle);
1336 if (state & STATE_LISTEN)
1338 rv = vppcom_session_unbind (sh);
1339 if (PREDICT_FALSE (rv < 0))
1340 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1341 "rv %d (%s)", session->session_index, vpp_handle, rv,
1342 vppcom_retval_str (rv));
1345 else if ((state & STATE_OPEN)
1346 || (vcl_session_is_connectable_listener (wrk, session)))
1348 rv = vppcom_session_disconnect (sh);
1349 if (PREDICT_FALSE (rv < 0))
1350 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1351 " rv %d (%s)", session->session_index, vpp_handle,
1352 rv, vppcom_retval_str (rv));
1354 else if (state == STATE_DISCONNECT)
1356 svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, session);
1357 vcl_send_session_reset_reply (mq, wrk->my_client_index,
1358 session->vpp_handle, 0);
1360 else if (state == STATE_DETACHED)
1362 /* Should not happen. VPP cleaned up before app confirmed close */
1363 VDBG (0, "vpp freed session %d before close", session->session_index);
1367 session->session_state = STATE_CLOSED;
1369 /* Session is removed only after vpp confirms the disconnect */
1373 vcl_session_table_del_vpp_handle (wrk, vpp_handle);
1375 vcl_session_free (wrk, session);
1376 vcl_evt (VCL_EVT_CLOSE, session, rv);
1382 vppcom_session_close (uint32_t session_handle)
1384 vcl_worker_t *wrk = vcl_worker_get_current ();
1385 vcl_session_t *session;
1387 session = vcl_session_get_w_handle (wrk, session_handle);
1389 return VPPCOM_EBADFD;
1390 return vcl_session_cleanup (wrk, session, session_handle,
1391 1 /* do_disconnect */ );
1395 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1397 vcl_worker_t *wrk = vcl_worker_get_current ();
1398 vcl_session_t *session = 0;
1401 return VPPCOM_EINVAL;
1403 session = vcl_session_get_w_handle (wrk, session_handle);
1405 return VPPCOM_EBADFD;
1407 if (session->is_vep)
1409 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1410 session->session_index);
1411 return VPPCOM_EBADFD;
1414 session->transport.is_ip4 = ep->is_ip4;
1416 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1417 sizeof (ip4_address_t));
1419 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1420 sizeof (ip6_address_t));
1421 session->transport.lcl_port = ep->port;
1423 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1424 "proto %s", session->session_index, session_handle,
1425 session->transport.is_ip4 ? "IPv4" : "IPv6",
1426 format_ip46_address, &session->transport.lcl_ip,
1427 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1428 clib_net_to_host_u16 (session->transport.lcl_port),
1429 vppcom_proto_str (session->session_type));
1430 vcl_evt (VCL_EVT_BIND, session);
1432 if (session->session_type == VPPCOM_PROTO_UDP)
1433 vppcom_session_listen (session_handle, 10);
1439 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1441 vcl_worker_t *wrk = vcl_worker_get_current ();
1442 vcl_session_t *listen_session = 0;
1443 u64 listen_vpp_handle;
1446 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1447 if (!listen_session || listen_session->is_vep)
1448 return VPPCOM_EBADFD;
1450 if (q_len == 0 || q_len == ~0)
1451 q_len = vcm->cfg.listen_queue_size;
1453 listen_vpp_handle = listen_session->vpp_handle;
1454 if (listen_session->session_state & STATE_LISTEN)
1456 VDBG (0, "session %u [0x%llx]: already in listen state!",
1457 listen_sh, listen_vpp_handle);
1461 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1464 * Send listen request to vpp and wait for reply
1466 vcl_send_session_listen (wrk, listen_session);
1467 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1469 vcm->cfg.session_timeout);
1471 if (PREDICT_FALSE (rv))
1473 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1474 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1475 listen_sh, listen_session->vpp_handle, rv,
1476 vppcom_retval_str (rv));
1484 vppcom_session_tls_add_cert (uint32_t session_handle, char *cert,
1488 vcl_worker_t *wrk = vcl_worker_get_current ();
1489 vcl_session_t *session = 0;
1491 session = vcl_session_get_w_handle (wrk, session_handle);
1493 return VPPCOM_EBADFD;
1495 if (cert_len == 0 || cert_len == ~0)
1496 return VPPCOM_EBADFD;
1499 * Send listen request to vpp and wait for reply
1501 vppcom_send_application_tls_cert_add (session, cert, cert_len);
1502 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1503 vcl_wait_for_app_state_change (STATE_APP_READY);
1509 vppcom_session_tls_add_key (uint32_t session_handle, char *key,
1513 vcl_worker_t *wrk = vcl_worker_get_current ();
1514 vcl_session_t *session = 0;
1516 session = vcl_session_get_w_handle (wrk, session_handle);
1518 return VPPCOM_EBADFD;
1520 if (key_len == 0 || key_len == ~0)
1521 return VPPCOM_EBADFD;
1523 vppcom_send_application_tls_key_add (session, key, key_len);
1524 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1525 vcl_wait_for_app_state_change (STATE_APP_READY);
1530 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1534 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1536 return VPPCOM_EBADFD;
1539 if ((ls->session_state != STATE_LISTEN)
1540 && (!vcl_session_is_connectable_listener (wrk, ls)))
1543 "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1544 " (%s)", ls->vpp_handle, ls->session_state,
1545 vppcom_session_state_str (ls->session_state));
1546 return VPPCOM_EBADFD;
1552 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1554 if (!strcmp (proto_str, "TCP"))
1555 *proto = VPPCOM_PROTO_TCP;
1556 else if (!strcmp (proto_str, "tcp"))
1557 *proto = VPPCOM_PROTO_TCP;
1558 else if (!strcmp (proto_str, "UDP"))
1559 *proto = VPPCOM_PROTO_UDP;
1560 else if (!strcmp (proto_str, "udp"))
1561 *proto = VPPCOM_PROTO_UDP;
1562 else if (!strcmp (proto_str, "TLS"))
1563 *proto = VPPCOM_PROTO_TLS;
1564 else if (!strcmp (proto_str, "tls"))
1565 *proto = VPPCOM_PROTO_TLS;
1566 else if (!strcmp (proto_str, "QUIC"))
1567 *proto = VPPCOM_PROTO_QUIC;
1568 else if (!strcmp (proto_str, "quic"))
1569 *proto = VPPCOM_PROTO_QUIC;
1576 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1579 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1580 vcl_worker_t *wrk = vcl_worker_get_current ();
1581 session_accepted_msg_t accepted_msg;
1582 vcl_session_t *listen_session = 0;
1583 vcl_session_t *client_session = 0;
1584 vcl_session_msg_t *evt;
1585 svm_msg_q_msg_t msg;
1590 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1591 if (!listen_session)
1592 return VPPCOM_EBADFD;
1594 listen_session_index = listen_session->session_index;
1595 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1598 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1600 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1601 accept_flags = evt->flags;
1602 accepted_msg = evt->accepted_msg;
1606 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1607 VCL_SESS_ATTR_NONBLOCK);
1610 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1611 return VPPCOM_EAGAIN;
1613 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1614 return VPPCOM_EAGAIN;
1616 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1617 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1619 vcl_handle_mq_event (wrk, e);
1620 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1623 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1624 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1630 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1631 listen_session_index);
1632 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1633 return VPPCOM_ECONNABORTED;
1635 listen_session = vcl_session_get (wrk, listen_session_index);
1636 client_session = vcl_session_get (wrk, client_session_index);
1638 if (flags & O_NONBLOCK)
1639 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1641 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1642 " flags %d, is_nonblocking %u", listen_session->session_index,
1643 listen_session->vpp_handle, client_session_index,
1644 client_session->vpp_handle, flags,
1645 VCL_SESS_ATTR_TEST (client_session->attr, VCL_SESS_ATTR_NONBLOCK));
1649 ep->is_ip4 = client_session->transport.is_ip4;
1650 ep->port = client_session->transport.rmt_port;
1651 if (client_session->transport.is_ip4)
1652 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1653 sizeof (ip4_address_t));
1655 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1656 sizeof (ip6_address_t));
1659 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1660 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1661 client_session_index, client_session->vpp_handle,
1662 format_ip46_address, &client_session->transport.rmt_ip,
1663 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1664 clib_net_to_host_u16 (client_session->transport.rmt_port),
1665 format_ip46_address, &client_session->transport.lcl_ip,
1666 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1667 clib_net_to_host_u16 (client_session->transport.lcl_port));
1668 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1669 client_session_index);
1672 * Session might have been closed already
1676 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1677 client_session->session_state = STATE_VPP_CLOSING;
1678 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1679 client_session->session_state = STATE_DISCONNECT;
1681 return vcl_session_handle (client_session);
1685 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1687 vcl_worker_t *wrk = vcl_worker_get_current ();
1688 vcl_session_t *session = 0;
1692 session = vcl_session_get_w_handle (wrk, session_handle);
1694 return VPPCOM_EBADFD;
1695 session_index = session->session_index;
1697 if (PREDICT_FALSE (session->is_vep))
1699 VDBG (0, "ERROR: cannot connect epoll session %u!",
1700 session->session_index);
1701 return VPPCOM_EBADFD;
1704 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1706 VDBG (0, "session handle %u [0x%llx]: session already "
1707 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1708 session_handle, session->vpp_handle,
1709 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1710 &session->transport.rmt_ip, session->transport.is_ip4 ?
1711 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1712 clib_net_to_host_u16 (session->transport.rmt_port),
1713 vppcom_proto_str (session->session_type), session->session_state,
1714 vppcom_session_state_str (session->session_state));
1718 /* Attempt to connect a connectionless listener */
1719 if (PREDICT_FALSE (session->session_state & STATE_LISTEN))
1721 if (session->session_type != VPPCOM_PROTO_UDP)
1722 return VPPCOM_EINVAL;
1723 vcl_send_session_unlisten (wrk, session);
1724 session->session_state = STATE_CLOSED;
1727 session->transport.is_ip4 = server_ep->is_ip4;
1728 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1729 session->transport.rmt_port = server_ep->port;
1730 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1731 session->flags |= VCL_SESSION_F_CONNECTED;
1733 VDBG (0, "session handle %u (%s): connecting to peer %s %U "
1734 "port %d proto %s", session_handle,
1735 vppcom_session_state_str (session->session_state),
1736 session->transport.is_ip4 ? "IPv4" : "IPv6",
1737 format_ip46_address,
1738 &session->transport.rmt_ip, session->transport.is_ip4 ?
1739 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1740 clib_net_to_host_u16 (session->transport.rmt_port),
1741 vppcom_proto_str (session->session_type));
1743 vcl_send_session_connect (wrk, session);
1745 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK))
1746 return VPPCOM_EINPROGRESS;
1749 * Wait for reply from vpp if blocking
1751 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1752 vcm->cfg.session_timeout);
1754 session = vcl_session_get (wrk, session_index);
1755 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1756 session->vpp_handle, rv ? "failed" : "succeeded");
1762 vppcom_session_stream_connect (uint32_t session_handle,
1763 uint32_t parent_session_handle)
1765 vcl_worker_t *wrk = vcl_worker_get_current ();
1766 vcl_session_t *session, *parent_session;
1767 u32 session_index, parent_session_index;
1770 session = vcl_session_get_w_handle (wrk, session_handle);
1772 return VPPCOM_EBADFD;
1773 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1774 if (!parent_session)
1775 return VPPCOM_EBADFD;
1777 session_index = session->session_index;
1778 parent_session_index = parent_session->session_index;
1779 if (PREDICT_FALSE (session->is_vep))
1781 VDBG (0, "ERROR: cannot connect epoll session %u!",
1782 session->session_index);
1783 return VPPCOM_EBADFD;
1786 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1788 VDBG (0, "session handle %u [0x%llx]: session already "
1789 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1790 session_handle, session->vpp_handle,
1791 parent_session_handle, parent_session->vpp_handle,
1792 vppcom_proto_str (session->session_type), session->session_state,
1793 vppcom_session_state_str (session->session_state));
1797 /* Connect to quic session specifics */
1798 session->transport.is_ip4 = parent_session->transport.is_ip4;
1799 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1800 session->transport.rmt_port = 0;
1801 session->parent_handle = parent_session->vpp_handle;
1803 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1804 session_handle, parent_session_handle, parent_session->vpp_handle);
1807 * Send connect request and wait for reply from vpp
1809 vcl_send_session_connect (wrk, session);
1810 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1811 vcm->cfg.session_timeout);
1813 session->listener_index = parent_session_index;
1814 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1816 parent_session->n_accepted_sessions++;
1818 session = vcl_session_get (wrk, session_index);
1819 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1820 session->vpp_handle, rv ? "failed" : "succeeded");
1826 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1828 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1832 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1835 vcl_worker_t *wrk = vcl_worker_get_current ();
1836 int n_read = 0, is_nonblocking;
1837 vcl_session_t *s = 0;
1838 svm_fifo_t *rx_fifo;
1839 svm_msg_q_msg_t msg;
1844 if (PREDICT_FALSE (!buf))
1845 return VPPCOM_EINVAL;
1847 s = vcl_session_get_w_handle (wrk, session_handle);
1848 if (PREDICT_FALSE (!s || s->is_vep))
1849 return VPPCOM_EBADFD;
1851 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1853 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1854 s->session_index, s->vpp_handle, s->session_state,
1855 vppcom_session_state_str (s->session_state));
1856 return vcl_session_closed_error (s);
1859 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1860 is_ct = vcl_session_is_ct (s);
1861 mq = wrk->app_event_queue;
1862 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1865 if (svm_fifo_is_empty_cons (rx_fifo))
1869 if (vcl_session_is_closing (s))
1870 return vcl_session_closing_error (s);
1871 svm_fifo_unset_event (s->rx_fifo);
1872 return VPPCOM_EWOULDBLOCK;
1874 while (svm_fifo_is_empty_cons (rx_fifo))
1876 if (vcl_session_is_closing (s))
1877 return vcl_session_closing_error (s);
1879 svm_fifo_unset_event (s->rx_fifo);
1880 svm_msg_q_lock (mq);
1881 if (svm_msg_q_is_empty (mq))
1882 svm_msg_q_wait (mq);
1884 svm_msg_q_sub_w_lock (mq, &msg);
1885 e = svm_msg_q_msg_data (mq, &msg);
1886 svm_msg_q_unlock (mq);
1887 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1888 vcl_handle_mq_event (wrk, e);
1889 svm_msg_q_free_msg (mq, &msg);
1894 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1896 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1898 if (svm_fifo_is_empty_cons (rx_fifo))
1899 svm_fifo_unset_event (s->rx_fifo);
1901 /* Cut-through sessions might request tx notifications on rx fifos */
1902 if (PREDICT_FALSE (rx_fifo->want_deq_ntf))
1904 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1905 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1906 svm_fifo_reset_has_deq_ntf (s->rx_fifo);
1909 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1910 s->vpp_handle, n_read, rx_fifo);
1916 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1918 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1922 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1924 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1928 vppcom_session_read_segments (uint32_t session_handle,
1929 vppcom_data_segments_t ds)
1931 vcl_worker_t *wrk = vcl_worker_get_current ();
1932 int n_read = 0, is_nonblocking;
1933 vcl_session_t *s = 0;
1934 svm_fifo_t *rx_fifo;
1935 svm_msg_q_msg_t msg;
1940 s = vcl_session_get_w_handle (wrk, session_handle);
1941 if (PREDICT_FALSE (!s || s->is_vep))
1942 return VPPCOM_EBADFD;
1944 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1945 return vcl_session_closed_error (s);
1947 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1948 is_ct = vcl_session_is_ct (s);
1949 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1950 rx_fifo = s->rx_fifo;
1954 svm_fifo_unset_event (s->rx_fifo);
1956 if (svm_fifo_is_empty_cons (rx_fifo))
1960 svm_fifo_unset_event (rx_fifo);
1961 return VPPCOM_EWOULDBLOCK;
1963 while (svm_fifo_is_empty_cons (rx_fifo))
1965 if (vcl_session_is_closing (s))
1966 return vcl_session_closing_error (s);
1968 svm_fifo_unset_event (rx_fifo);
1969 svm_msg_q_lock (mq);
1970 if (svm_msg_q_is_empty (mq))
1971 svm_msg_q_wait (mq);
1973 svm_msg_q_sub_w_lock (mq, &msg);
1974 e = svm_msg_q_msg_data (mq, &msg);
1975 svm_msg_q_unlock (mq);
1976 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1977 vcl_handle_mq_event (wrk, e);
1978 svm_msg_q_free_msg (mq, &msg);
1982 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_seg_t *) ds);
1983 svm_fifo_unset_event (rx_fifo);
1989 vppcom_session_free_segments (uint32_t session_handle,
1990 vppcom_data_segments_t ds)
1992 vcl_worker_t *wrk = vcl_worker_get_current ();
1995 s = vcl_session_get_w_handle (wrk, session_handle);
1996 if (PREDICT_FALSE (!s || s->is_vep))
1999 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_seg_t *) ds);
2003 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
2005 u32 first_copy = clib_min (ds[0].len, max_bytes);
2006 clib_memcpy_fast (buf, ds[0].data, first_copy);
2007 if (first_copy < max_bytes)
2009 clib_memcpy_fast (buf + first_copy, ds[1].data,
2010 clib_min (ds[1].len, max_bytes - first_copy));
2016 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
2018 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
2022 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2024 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2026 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2032 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2033 size_t n, u8 is_flush, u8 is_dgram)
2035 int n_write, is_nonblocking;
2036 session_evt_type_t et;
2037 svm_msg_q_msg_t msg;
2038 svm_fifo_t *tx_fifo;
2043 if (PREDICT_FALSE (!buf || n == 0))
2044 return VPPCOM_EINVAL;
2046 if (PREDICT_FALSE (s->is_vep))
2048 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2049 " session!", s->session_index, s->vpp_handle);
2050 return VPPCOM_EBADFD;
2053 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2055 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2056 s->session_index, s->vpp_handle, s->session_state,
2057 vppcom_session_state_str (s->session_state));
2058 return vcl_session_closed_error (s);;
2061 is_ct = vcl_session_is_ct (s);
2062 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2063 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
2065 mq = wrk->app_event_queue;
2066 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2070 return VPPCOM_EWOULDBLOCK;
2072 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2074 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2075 if (vcl_session_is_closing (s))
2076 return vcl_session_closing_error (s);
2077 svm_msg_q_lock (mq);
2078 if (svm_msg_q_is_empty (mq))
2079 svm_msg_q_wait (mq);
2081 svm_msg_q_sub_w_lock (mq, &msg);
2082 e = svm_msg_q_msg_data (mq, &msg);
2083 svm_msg_q_unlock (mq);
2085 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
2086 vcl_handle_mq_event (wrk, e);
2087 svm_msg_q_free_msg (mq, &msg);
2091 et = SESSION_IO_EVT_TX;
2092 if (is_flush && !is_ct)
2093 et = SESSION_IO_EVT_TX_FLUSH;
2096 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2097 s->vpp_evt_q, buf, n, et,
2098 0 /* do_evt */ , SVM_Q_WAIT);
2100 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2101 0 /* do_evt */ , SVM_Q_WAIT);
2103 if (svm_fifo_set_event (s->tx_fifo))
2104 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
2107 ASSERT (n_write > 0);
2109 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2110 s->vpp_handle, n_write);
2116 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2118 vcl_worker_t *wrk = vcl_worker_get_current ();
2121 s = vcl_session_get_w_handle (wrk, session_handle);
2122 if (PREDICT_FALSE (!s))
2123 return VPPCOM_EBADFD;
2125 return vppcom_session_write_inline (wrk, s, buf, n,
2126 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2130 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2132 vcl_worker_t *wrk = vcl_worker_get_current ();
2135 s = vcl_session_get_w_handle (wrk, session_handle);
2136 if (PREDICT_FALSE (!s))
2137 return VPPCOM_EBADFD;
2139 return vppcom_session_write_inline (wrk, s, buf, n,
2140 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2143 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2144 if (PREDICT_FALSE (!_s->rx_fifo)) \
2146 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2148 if (!vcl_session_is_ct (_s)) \
2150 svm_fifo_unset_event (_s->rx_fifo); \
2151 if (svm_fifo_is_empty (_s->rx_fifo)) \
2154 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2156 svm_fifo_unset_event (_s->ct_rx_fifo); \
2157 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2163 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2164 unsigned long n_bits, unsigned long *read_map,
2165 unsigned long *write_map,
2166 unsigned long *except_map, u32 * bits_set)
2168 session_disconnected_msg_t *disconnected_msg;
2169 session_connected_msg_t *connected_msg;
2170 vcl_session_t *session;
2173 switch (e->event_type)
2175 case SESSION_IO_EVT_RX:
2176 sid = e->session_index;
2177 session = vcl_session_get (wrk, sid);
2178 if (!session || !vcl_session_is_open (session))
2180 vcl_fifo_rx_evt_valid_or_break (session);
2181 if (sid < n_bits && read_map)
2183 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2187 case SESSION_IO_EVT_TX:
2188 sid = e->session_index;
2189 session = vcl_session_get (wrk, sid);
2190 if (!session || !vcl_session_is_open (session))
2192 if (sid < n_bits && write_map)
2194 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2198 case SESSION_CTRL_EVT_ACCEPTED:
2199 session = vcl_session_accepted (wrk,
2200 (session_accepted_msg_t *) e->data);
2203 sid = session->session_index;
2204 if (sid < n_bits && read_map)
2206 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2210 case SESSION_CTRL_EVT_CONNECTED:
2211 connected_msg = (session_connected_msg_t *) e->data;
2212 sid = vcl_session_connected_handler (wrk, connected_msg);
2213 if (sid == VCL_INVALID_SESSION_INDEX)
2215 if (sid < n_bits && write_map)
2217 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2221 case SESSION_CTRL_EVT_DISCONNECTED:
2222 disconnected_msg = (session_disconnected_msg_t *) e->data;
2223 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2226 sid = session->session_index;
2227 if (sid < n_bits && except_map)
2229 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2233 case SESSION_CTRL_EVT_RESET:
2234 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2235 if (sid < n_bits && except_map)
2237 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2241 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2242 vcl_session_unlisten_reply_handler (wrk, e->data);
2244 case SESSION_CTRL_EVT_MIGRATED:
2245 vcl_session_migrated_handler (wrk, e->data);
2247 case SESSION_CTRL_EVT_CLEANUP:
2248 vcl_session_cleanup_handler (wrk, e->data);
2250 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2251 vcl_session_worker_update_reply_handler (wrk, e->data);
2253 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2254 vcl_session_req_worker_update_handler (wrk, e->data);
2256 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2257 vcl_session_app_add_segment_handler (wrk, e->data);
2259 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2260 vcl_session_app_del_segment_handler (wrk, e->data);
2263 clib_warning ("unhandled: %u", e->event_type);
2269 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2270 unsigned long n_bits, unsigned long *read_map,
2271 unsigned long *write_map, unsigned long *except_map,
2272 double time_to_wait, u32 * bits_set)
2274 svm_msg_q_msg_t *msg;
2278 svm_msg_q_lock (mq);
2279 if (svm_msg_q_is_empty (mq))
2283 svm_msg_q_unlock (mq);
2289 svm_msg_q_unlock (mq);
2292 else if (time_to_wait < 0)
2294 svm_msg_q_wait (mq);
2298 if (svm_msg_q_timedwait (mq, time_to_wait))
2300 svm_msg_q_unlock (mq);
2305 vcl_mq_dequeue_batch (wrk, mq, ~0);
2306 svm_msg_q_unlock (mq);
2308 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2310 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2311 e = svm_msg_q_msg_data (mq, msg);
2312 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2313 except_map, bits_set);
2314 svm_msg_q_free_msg (mq, msg);
2316 vec_reset_length (wrk->mq_msg_vector);
2317 vcl_handle_pending_wrk_updates (wrk);
2322 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2323 vcl_si_set * read_map, vcl_si_set * write_map,
2324 vcl_si_set * except_map, double time_to_wait,
2327 double wait = 0, start = 0;
2331 wait = time_to_wait;
2332 start = clib_time_now (&wrk->clib_time);
2337 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2338 write_map, except_map, wait, bits_set);
2344 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2352 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2353 vcl_si_set * read_map, vcl_si_set * write_map,
2354 vcl_si_set * except_map, double time_to_wait,
2357 vcl_mq_evt_conn_t *mqc;
2358 int __clib_unused n_read;
2362 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2363 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2364 vec_len (wrk->mq_events), time_to_wait);
2365 for (i = 0; i < n_mq_evts; i++)
2367 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2368 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2369 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2370 except_map, 0, bits_set);
2373 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2377 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2378 vcl_si_set * except_map, double time_to_wait)
2380 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2381 vcl_worker_t *wrk = vcl_worker_get_current ();
2382 vcl_session_t *session = 0;
2385 if (n_bits && read_map)
2387 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2388 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2389 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2390 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2392 if (n_bits && write_map)
2394 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2395 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2396 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2397 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2399 if (n_bits && except_map)
2401 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2402 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2403 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2404 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2414 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2415 if (!(session = vcl_session_get (wrk, sid)))
2417 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2422 if (vcl_session_write_ready (session))
2424 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2428 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2435 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2436 if (!(session = vcl_session_get (wrk, sid)))
2438 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2443 if (vcl_session_read_ready (session))
2445 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2453 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2455 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2456 read_map, write_map, except_map, &bits_set);
2458 vec_reset_length (wrk->unhandled_evts_vector);
2460 if (vcm->cfg.use_mq_eventfd)
2461 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2462 time_to_wait, &bits_set);
2464 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2465 time_to_wait, &bits_set);
2471 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2473 vcl_session_t *session;
2474 vppcom_epoll_t *vep;
2475 u32 sh = vep_handle;
2477 if (VPPCOM_DEBUG <= 2)
2480 session = vcl_session_get_w_handle (wrk, vep_handle);
2481 if (PREDICT_FALSE (!session))
2483 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2486 if (PREDICT_FALSE (!session->is_vep))
2488 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2491 vep = &session->vep;
2492 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2495 " is_vep_session = %u\n"
2496 " next_sh = 0x%x (%u)\n"
2497 "}\n", vep_handle, session->is_vep, session->is_vep_session,
2498 vep->next_sh, vep->next_sh);
2500 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2502 session = vcl_session_get_w_handle (wrk, sh);
2503 if (PREDICT_FALSE (!session))
2505 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2508 if (PREDICT_FALSE (session->is_vep))
2510 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2512 else if (PREDICT_FALSE (!session->is_vep_session))
2514 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2517 vep = &session->vep;
2518 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2519 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2520 sh, session->vep.vep_sh, vep_handle);
2521 if (session->is_vep_session)
2523 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2525 " next_sh = 0x%x (%u)\n"
2526 " prev_sh = 0x%x (%u)\n"
2527 " vep_sh = 0x%x (%u)\n"
2528 " ev.events = 0x%x\n"
2529 " ev.data.u64 = 0x%llx\n"
2532 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2533 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2534 vep->ev.data.u64, vep->et_mask);
2539 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2543 vppcom_epoll_create (void)
2545 vcl_worker_t *wrk = vcl_worker_get_current ();
2546 vcl_session_t *vep_session;
2548 vep_session = vcl_session_alloc (wrk);
2550 vep_session->is_vep = 1;
2551 vep_session->vep.vep_sh = ~0;
2552 vep_session->vep.next_sh = ~0;
2553 vep_session->vep.prev_sh = ~0;
2554 vep_session->vpp_handle = ~0;
2556 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2557 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2559 return vcl_session_handle (vep_session);
2563 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2564 struct epoll_event *event)
2566 vcl_worker_t *wrk = vcl_worker_get_current ();
2567 vcl_session_t *vep_session;
2568 vcl_session_t *session;
2571 if (vep_handle == session_handle)
2573 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2574 return VPPCOM_EINVAL;
2577 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2578 if (PREDICT_FALSE (!vep_session))
2580 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2581 return VPPCOM_EBADFD;
2583 if (PREDICT_FALSE (!vep_session->is_vep))
2585 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2586 return VPPCOM_EINVAL;
2589 ASSERT (vep_session->vep.vep_sh == ~0);
2590 ASSERT (vep_session->vep.prev_sh == ~0);
2592 session = vcl_session_get_w_handle (wrk, session_handle);
2593 if (PREDICT_FALSE (!session))
2595 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2596 return VPPCOM_EBADFD;
2598 if (PREDICT_FALSE (session->is_vep))
2600 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2601 return VPPCOM_EINVAL;
2607 if (PREDICT_FALSE (!event))
2609 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2610 return VPPCOM_EINVAL;
2612 if (vep_session->vep.next_sh != ~0)
2614 vcl_session_t *next_session;
2615 next_session = vcl_session_get_w_handle (wrk,
2616 vep_session->vep.next_sh);
2617 if (PREDICT_FALSE (!next_session))
2619 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2620 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2621 return VPPCOM_EBADFD;
2623 ASSERT (next_session->vep.prev_sh == vep_handle);
2624 next_session->vep.prev_sh = session_handle;
2626 session->vep.next_sh = vep_session->vep.next_sh;
2627 session->vep.prev_sh = vep_handle;
2628 session->vep.vep_sh = vep_handle;
2629 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2630 session->vep.ev = *event;
2631 session->is_vep = 0;
2632 session->is_vep_session = 1;
2633 vep_session->vep.next_sh = session_handle;
2635 if (session->tx_fifo)
2636 svm_fifo_add_want_deq_ntf (session->tx_fifo,
2637 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2639 /* Generate EPOLLOUT if tx fifo not full */
2640 if ((event->events & EPOLLOUT) &&
2641 (vcl_session_write_ready (session) > 0))
2643 session_event_t e = { 0 };
2644 e.event_type = SESSION_IO_EVT_TX;
2645 e.session_index = session->session_index;
2646 vec_add1 (wrk->unhandled_evts_vector, e);
2648 /* Generate EPOLLIN if rx fifo has data */
2649 if ((event->events & EPOLLIN) && (vcl_session_read_ready (session) > 0))
2651 session_event_t e = { 0 };
2652 e.event_type = SESSION_IO_EVT_RX;
2653 e.session_index = session->session_index;
2654 vec_add1 (wrk->unhandled_evts_vector, e);
2656 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2657 vep_handle, session_handle, event->events, event->data.u64);
2658 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2662 if (PREDICT_FALSE (!event))
2664 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2668 else if (PREDICT_FALSE (!session->is_vep_session))
2670 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2674 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2676 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2677 session_handle, session->vep.vep_sh, vep_handle);
2682 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2683 if ((event->events & EPOLLOUT) &&
2684 !(session->vep.ev.events & EPOLLOUT) &&
2685 (vcl_session_write_ready (session) > 0))
2687 session_event_t e = { 0 };
2688 e.event_type = SESSION_IO_EVT_TX;
2689 e.session_index = session->session_index;
2690 vec_add1 (wrk->unhandled_evts_vector, e);
2692 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2693 session->vep.ev = *event;
2694 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2695 vep_handle, session_handle, event->events, event->data.u64);
2699 if (PREDICT_FALSE (!session->is_vep_session))
2701 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2705 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2707 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2708 session_handle, session->vep.vep_sh, vep_handle);
2713 if (session->vep.prev_sh == vep_handle)
2714 vep_session->vep.next_sh = session->vep.next_sh;
2717 vcl_session_t *prev_session;
2718 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2719 if (PREDICT_FALSE (!prev_session))
2721 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2722 session->vep.prev_sh, session_handle);
2723 return VPPCOM_EBADFD;
2725 ASSERT (prev_session->vep.next_sh == session_handle);
2726 prev_session->vep.next_sh = session->vep.next_sh;
2728 if (session->vep.next_sh != ~0)
2730 vcl_session_t *next_session;
2731 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2732 if (PREDICT_FALSE (!next_session))
2734 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2735 session->vep.next_sh, session_handle);
2736 return VPPCOM_EBADFD;
2738 ASSERT (next_session->vep.prev_sh == session_handle);
2739 next_session->vep.prev_sh = session->vep.prev_sh;
2742 memset (&session->vep, 0, sizeof (session->vep));
2743 session->vep.next_sh = ~0;
2744 session->vep.prev_sh = ~0;
2745 session->vep.vep_sh = ~0;
2746 session->is_vep_session = 0;
2748 if (session->tx_fifo)
2749 svm_fifo_del_want_deq_ntf (session->tx_fifo, SVM_FIFO_NO_DEQ_NOTIF);
2751 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2753 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2757 VDBG (0, "Invalid operation (%d)!", op);
2761 vep_verify_epoll_chain (wrk, vep_handle);
2768 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2769 struct epoll_event *events, u32 * num_ev)
2771 session_disconnected_msg_t *disconnected_msg;
2772 session_connected_msg_t *connected_msg;
2773 u32 sid = ~0, session_events;
2774 u64 session_evt_data = ~0;
2775 vcl_session_t *session;
2778 switch (e->event_type)
2780 case SESSION_IO_EVT_RX:
2781 sid = e->session_index;
2782 session = vcl_session_get (wrk, sid);
2783 if (vcl_session_is_closed (session))
2785 vcl_fifo_rx_evt_valid_or_break (session);
2786 session_events = session->vep.ev.events;
2787 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2790 events[*num_ev].events |= EPOLLIN;
2791 session_evt_data = session->vep.ev.data.u64;
2792 session->has_rx_evt = 1;
2794 case SESSION_IO_EVT_TX:
2795 sid = e->session_index;
2796 session = vcl_session_get (wrk, sid);
2797 if (vcl_session_is_closed (session))
2799 session_events = session->vep.ev.events;
2800 if (!(EPOLLOUT & session_events))
2803 events[*num_ev].events |= EPOLLOUT;
2804 session_evt_data = session->vep.ev.data.u64;
2805 svm_fifo_reset_has_deq_ntf (session->tx_fifo);
2807 case SESSION_CTRL_EVT_ACCEPTED:
2808 session = vcl_session_accepted (wrk,
2809 (session_accepted_msg_t *) e->data);
2813 session_events = session->vep.ev.events;
2814 if (!(EPOLLIN & session_events))
2818 events[*num_ev].events |= EPOLLIN;
2819 session_evt_data = session->vep.ev.data.u64;
2821 case SESSION_CTRL_EVT_CONNECTED:
2822 connected_msg = (session_connected_msg_t *) e->data;
2823 sid = vcl_session_connected_handler (wrk, connected_msg);
2824 /* Generate EPOLLOUT because there's no connected event */
2825 session = vcl_session_get (wrk, sid);
2826 if (vcl_session_is_closed (session))
2828 session_events = session->vep.ev.events;
2829 if (!(EPOLLOUT & session_events))
2832 events[*num_ev].events |= EPOLLOUT;
2833 session_evt_data = session->vep.ev.data.u64;
2834 if (session->session_state & STATE_DETACHED)
2835 events[*num_ev].events |= EPOLLHUP;
2837 case SESSION_CTRL_EVT_DISCONNECTED:
2838 disconnected_msg = (session_disconnected_msg_t *) e->data;
2839 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2840 if (vcl_session_is_closed (session))
2842 session_events = session->vep.ev.events;
2844 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2845 session_evt_data = session->vep.ev.data.u64;
2847 case SESSION_CTRL_EVT_RESET:
2848 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2849 session = vcl_session_get (wrk, sid);
2850 if (vcl_session_is_closed (session))
2852 session_events = session->vep.ev.events;
2854 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2855 session_evt_data = session->vep.ev.data.u64;
2857 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2858 vcl_session_unlisten_reply_handler (wrk, e->data);
2860 case SESSION_CTRL_EVT_MIGRATED:
2861 vcl_session_migrated_handler (wrk, e->data);
2863 case SESSION_CTRL_EVT_CLEANUP:
2864 vcl_session_cleanup_handler (wrk, e->data);
2866 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2867 vcl_session_req_worker_update_handler (wrk, e->data);
2869 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2870 vcl_session_worker_update_reply_handler (wrk, e->data);
2872 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2873 vcl_session_app_add_segment_handler (wrk, e->data);
2875 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2876 vcl_session_app_del_segment_handler (wrk, e->data);
2879 VDBG (0, "unhandled: %u", e->event_type);
2885 events[*num_ev].data.u64 = session_evt_data;
2886 if (EPOLLONESHOT & session_events)
2888 session = vcl_session_get (wrk, sid);
2889 session->vep.ev.events = 0;
2896 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2897 struct epoll_event *events, u32 maxevents,
2898 double wait_for_time, u32 * num_ev)
2900 svm_msg_q_msg_t *msg;
2904 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2905 goto handle_dequeued;
2907 svm_msg_q_lock (mq);
2908 if (svm_msg_q_is_empty (mq))
2912 svm_msg_q_unlock (mq);
2915 else if (wait_for_time < 0)
2917 svm_msg_q_wait (mq);
2921 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2923 svm_msg_q_unlock (mq);
2928 ASSERT (maxevents > *num_ev);
2929 vcl_mq_dequeue_batch (wrk, mq, ~0);
2930 svm_msg_q_unlock (mq);
2933 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2935 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2936 e = svm_msg_q_msg_data (mq, msg);
2937 if (*num_ev < maxevents)
2938 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2940 vcl_handle_mq_event (wrk, e);
2941 svm_msg_q_free_msg (mq, msg);
2943 vec_reset_length (wrk->mq_msg_vector);
2944 vcl_handle_pending_wrk_updates (wrk);
2949 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2950 int maxevents, u32 n_evts, double wait_for_time)
2952 double wait = 0, start = 0, now;
2956 wait = wait_for_time;
2957 start = clib_time_now (&wrk->clib_time);
2962 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2969 now = clib_time_now (&wrk->clib_time);
2970 wait -= (now - start) * 1e3;
2979 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2980 int maxevents, u32 n_evts, double wait_for_time)
2982 vcl_mq_evt_conn_t *mqc;
2983 int __clib_unused n_read;
2987 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2989 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2990 vec_len (wrk->mq_events), wait_for_time);
2991 for (i = 0; i < n_mq_evts; i++)
2993 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2994 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2995 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
2997 if (!n_evts && n_mq_evts > 0)
3000 return (int) n_evts;
3004 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3005 int maxevents, double wait_for_time)
3007 vcl_worker_t *wrk = vcl_worker_get_current ();
3008 vcl_session_t *vep_session;
3012 if (PREDICT_FALSE (maxevents <= 0))
3014 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3015 return VPPCOM_EINVAL;
3018 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3020 return VPPCOM_EBADFD;
3022 if (PREDICT_FALSE (!vep_session->is_vep))
3024 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3025 return VPPCOM_EINVAL;
3028 memset (events, 0, sizeof (*events) * maxevents);
3030 if (vec_len (wrk->unhandled_evts_vector))
3032 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3034 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3036 if (n_evts == maxevents)
3038 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3042 vec_reset_length (wrk->unhandled_evts_vector);
3045 if (vcm->cfg.use_mq_eventfd)
3046 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3049 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3054 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3055 void *buffer, uint32_t * buflen)
3057 vcl_worker_t *wrk = vcl_worker_get_current ();
3058 vcl_session_t *session;
3060 u32 *flags = buffer, tmp_flags = 0;
3061 vppcom_endpt_t *ep = buffer;
3063 session = vcl_session_get_w_handle (wrk, session_handle);
3065 return VPPCOM_EBADFD;
3069 case VPPCOM_ATTR_GET_NREAD:
3070 rv = vcl_session_read_ready (session);
3071 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3075 case VPPCOM_ATTR_GET_NWRITE:
3076 rv = vcl_session_write_ready (session);
3077 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3081 case VPPCOM_ATTR_GET_FLAGS:
3082 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3086 (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK) ?
3088 *buflen = sizeof (*flags);
3089 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3090 "is_nonblocking = %u", session_handle, *flags,
3091 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3097 case VPPCOM_ATTR_SET_FLAGS:
3098 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3100 if (*flags & O_NONBLOCK)
3101 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
3103 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
3105 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3106 " is_nonblocking = %u", session_handle, *flags,
3107 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3113 case VPPCOM_ATTR_GET_PEER_ADDR:
3114 if (PREDICT_TRUE (buffer && buflen &&
3115 (*buflen >= sizeof (*ep)) && ep->ip))
3117 ep->is_ip4 = session->transport.is_ip4;
3118 ep->port = session->transport.rmt_port;
3119 if (session->transport.is_ip4)
3120 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3121 sizeof (ip4_address_t));
3123 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3124 sizeof (ip6_address_t));
3125 *buflen = sizeof (*ep);
3126 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3127 "addr = %U, port %u", session_handle, ep->is_ip4,
3128 format_ip46_address, &session->transport.rmt_ip,
3129 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3130 clib_net_to_host_u16 (ep->port));
3136 case VPPCOM_ATTR_GET_LCL_ADDR:
3137 if (PREDICT_TRUE (buffer && buflen &&
3138 (*buflen >= sizeof (*ep)) && ep->ip))
3140 ep->is_ip4 = session->transport.is_ip4;
3141 ep->port = session->transport.lcl_port;
3142 if (session->transport.is_ip4)
3143 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3144 sizeof (ip4_address_t));
3146 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3147 sizeof (ip6_address_t));
3148 *buflen = sizeof (*ep);
3149 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3150 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3151 &session->transport.lcl_ip,
3152 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3153 clib_net_to_host_u16 (ep->port));
3159 case VPPCOM_ATTR_SET_LCL_ADDR:
3160 if (PREDICT_TRUE (buffer && buflen &&
3161 (*buflen >= sizeof (*ep)) && ep->ip))
3163 session->transport.is_ip4 = ep->is_ip4;
3164 session->transport.lcl_port = ep->port;
3165 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3166 *buflen = sizeof (*ep);
3167 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3168 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3169 &session->transport.lcl_ip,
3170 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3171 clib_net_to_host_u16 (ep->port));
3177 case VPPCOM_ATTR_GET_LIBC_EPFD:
3178 rv = session->libc_epfd;
3179 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3182 case VPPCOM_ATTR_SET_LIBC_EPFD:
3183 if (PREDICT_TRUE (buffer && buflen &&
3184 (*buflen == sizeof (session->libc_epfd))))
3186 session->libc_epfd = *(int *) buffer;
3187 *buflen = sizeof (session->libc_epfd);
3189 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3190 session->libc_epfd, *buflen);
3196 case VPPCOM_ATTR_GET_PROTOCOL:
3197 if (buffer && buflen && (*buflen >= sizeof (int)))
3199 *(int *) buffer = session->session_type;
3200 *buflen = sizeof (int);
3202 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3203 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3209 case VPPCOM_ATTR_GET_LISTEN:
3210 if (buffer && buflen && (*buflen >= sizeof (int)))
3212 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3213 VCL_SESS_ATTR_LISTEN);
3214 *buflen = sizeof (int);
3216 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3223 case VPPCOM_ATTR_GET_ERROR:
3224 if (buffer && buflen && (*buflen >= sizeof (int)))
3226 *(int *) buffer = 0;
3227 *buflen = sizeof (int);
3229 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3230 *(int *) buffer, *buflen);
3236 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3237 if (buffer && buflen && (*buflen >= sizeof (u32)))
3241 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3243 svm_fifo_size (session->tx_fifo) :
3244 vcm->cfg.tx_fifo_size);
3245 *buflen = sizeof (u32);
3247 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3248 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3255 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3256 if (buffer && buflen && (*buflen == sizeof (u32)))
3259 session->sndbuf_size = *(u32 *) buffer;
3260 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3261 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3268 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3269 if (buffer && buflen && (*buflen >= sizeof (u32)))
3273 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3275 svm_fifo_size (session->rx_fifo) :
3276 vcm->cfg.rx_fifo_size);
3277 *buflen = sizeof (u32);
3279 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3280 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3286 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3287 if (buffer && buflen && (*buflen == sizeof (u32)))
3290 session->rcvbuf_size = *(u32 *) buffer;
3291 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3292 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3299 case VPPCOM_ATTR_GET_REUSEADDR:
3300 if (buffer && buflen && (*buflen >= sizeof (int)))
3303 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3304 VCL_SESS_ATTR_REUSEADDR);
3305 *buflen = sizeof (int);
3307 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3308 *(int *) buffer, *buflen);
3314 case VPPCOM_ATTR_SET_REUSEADDR:
3315 if (buffer && buflen && (*buflen == sizeof (int)) &&
3316 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3319 if (*(int *) buffer)
3320 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
3322 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
3324 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3325 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEADDR),
3332 case VPPCOM_ATTR_GET_REUSEPORT:
3333 if (buffer && buflen && (*buflen >= sizeof (int)))
3336 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3337 VCL_SESS_ATTR_REUSEPORT);
3338 *buflen = sizeof (int);
3340 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3341 *(int *) buffer, *buflen);
3347 case VPPCOM_ATTR_SET_REUSEPORT:
3348 if (buffer && buflen && (*buflen == sizeof (int)) &&
3349 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3352 if (*(int *) buffer)
3353 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
3355 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
3357 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3358 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEPORT),
3365 case VPPCOM_ATTR_GET_BROADCAST:
3366 if (buffer && buflen && (*buflen >= sizeof (int)))
3369 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3370 VCL_SESS_ATTR_BROADCAST);
3371 *buflen = sizeof (int);
3373 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3374 *(int *) buffer, *buflen);
3380 case VPPCOM_ATTR_SET_BROADCAST:
3381 if (buffer && buflen && (*buflen == sizeof (int)))
3384 if (*(int *) buffer)
3385 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
3387 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
3389 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3390 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_BROADCAST),
3397 case VPPCOM_ATTR_GET_V6ONLY:
3398 if (buffer && buflen && (*buflen >= sizeof (int)))
3401 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3402 VCL_SESS_ATTR_V6ONLY);
3403 *buflen = sizeof (int);
3405 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3406 *(int *) buffer, *buflen);
3412 case VPPCOM_ATTR_SET_V6ONLY:
3413 if (buffer && buflen && (*buflen == sizeof (int)))
3416 if (*(int *) buffer)
3417 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
3419 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
3421 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3422 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_V6ONLY),
3429 case VPPCOM_ATTR_GET_KEEPALIVE:
3430 if (buffer && buflen && (*buflen >= sizeof (int)))
3433 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3434 VCL_SESS_ATTR_KEEPALIVE);
3435 *buflen = sizeof (int);
3437 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3438 *(int *) buffer, *buflen);
3444 case VPPCOM_ATTR_SET_KEEPALIVE:
3445 if (buffer && buflen && (*buflen == sizeof (int)))
3448 if (*(int *) buffer)
3449 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3451 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3453 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3454 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_KEEPALIVE),
3461 case VPPCOM_ATTR_GET_TCP_NODELAY:
3462 if (buffer && buflen && (*buflen >= sizeof (int)))
3465 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3466 VCL_SESS_ATTR_TCP_NODELAY);
3467 *buflen = sizeof (int);
3469 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3470 *(int *) buffer, *buflen);
3476 case VPPCOM_ATTR_SET_TCP_NODELAY:
3477 if (buffer && buflen && (*buflen == sizeof (int)))
3480 if (*(int *) buffer)
3481 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3483 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3485 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3486 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_NODELAY),
3493 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3494 if (buffer && buflen && (*buflen >= sizeof (int)))
3497 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3498 VCL_SESS_ATTR_TCP_KEEPIDLE);
3499 *buflen = sizeof (int);
3501 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3502 *(int *) buffer, *buflen);
3508 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3509 if (buffer && buflen && (*buflen == sizeof (int)))
3512 if (*(int *) buffer)
3513 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3515 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3517 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3518 VCL_SESS_ATTR_TEST (session->attr,
3519 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3525 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3526 if (buffer && buflen && (*buflen >= sizeof (int)))
3529 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3530 VCL_SESS_ATTR_TCP_KEEPINTVL);
3531 *buflen = sizeof (int);
3533 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3534 *(int *) buffer, *buflen);
3540 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3541 if (buffer && buflen && (*buflen == sizeof (int)))
3544 if (*(int *) buffer)
3545 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3547 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3549 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3550 VCL_SESS_ATTR_TEST (session->attr,
3551 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3557 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3558 if (buffer && buflen && (*buflen >= sizeof (u32)))
3561 *(u32 *) buffer = session->user_mss;
3562 *buflen = sizeof (int);
3564 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3565 *(int *) buffer, *buflen);
3571 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3572 if (buffer && buflen && (*buflen == sizeof (u32)))
3575 session->user_mss = *(u32 *) buffer;
3577 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3578 session->user_mss, *buflen);
3584 case VPPCOM_ATTR_SET_SHUT:
3585 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3586 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3587 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3588 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3591 case VPPCOM_ATTR_GET_SHUT:
3592 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3594 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3597 *(int *) buffer = SHUT_RD;
3598 else if (tmp_flags == 2)
3599 *(int *) buffer = SHUT_WR;
3600 else if (tmp_flags == 3)
3601 *(int *) buffer = SHUT_RDWR;
3602 *buflen = sizeof (int);
3605 case VPPCOM_ATTR_SET_CONNECTED:
3606 session->flags |= VCL_SESSION_F_CONNECTED;
3618 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3619 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3621 vcl_worker_t *wrk = vcl_worker_get_current ();
3622 vcl_session_t *session;
3626 rv = vppcom_session_read (session_handle, buffer, buflen);
3627 else if (flags & MSG_PEEK)
3628 rv = vppcom_session_peek (session_handle, buffer, buflen);
3631 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3632 return VPPCOM_EAFNOSUPPORT;
3637 session = vcl_session_get_w_handle (wrk, session_handle);
3638 if (session->transport.is_ip4)
3639 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3640 sizeof (ip4_address_t));
3642 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3643 sizeof (ip6_address_t));
3644 ep->is_ip4 = session->transport.is_ip4;
3645 ep->port = session->transport.rmt_port;
3652 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3653 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3655 vcl_worker_t *wrk = vcl_worker_get_current ();
3658 s = vcl_session_get_w_handle (wrk, session_handle);
3660 return VPPCOM_EBADFD;
3663 return VPPCOM_EINVAL;
3667 if (s->session_type != VPPCOM_PROTO_UDP
3668 || (s->flags & VCL_SESSION_F_CONNECTED))
3669 return VPPCOM_EINVAL;
3671 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3672 if (PREDICT_FALSE (s->session_state == STATE_CLOSED))
3674 vcl_send_session_connect (wrk, s);
3678 s->transport.is_ip4 = ep->is_ip4;
3679 s->transport.rmt_port = ep->port;
3680 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3686 // TBD check the flags and do the right thing
3687 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3690 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3691 s->is_dgram ? 1 : 0));
3695 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3697 vcl_worker_t *wrk = vcl_worker_get_current ();
3698 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3699 u32 i, keep_trying = 1;
3700 svm_msg_q_msg_t msg;
3704 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3707 return VPPCOM_EFAULT;
3711 vcl_session_t *session;
3713 /* Dequeue all events and drop all unhandled io events */
3714 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3716 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3717 vcl_handle_mq_event (wrk, e);
3718 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3720 vec_reset_length (wrk->unhandled_evts_vector);
3722 for (i = 0; i < n_sids; i++)
3724 session = vcl_session_get (wrk, vp[i].sh);
3727 vp[i].revents = POLLHUP;
3734 if (POLLIN & vp[i].events)
3736 rv = vcl_session_read_ready (session);
3739 vp[i].revents |= POLLIN;
3746 case VPPCOM_ECONNRESET:
3747 vp[i].revents = POLLHUP;
3751 vp[i].revents = POLLERR;
3758 if (POLLOUT & vp[i].events)
3760 rv = vcl_session_write_ready (session);
3763 vp[i].revents |= POLLOUT;
3770 case VPPCOM_ECONNRESET:
3771 vp[i].revents = POLLHUP;
3775 vp[i].revents = POLLERR;
3782 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3784 vp[i].revents = POLLNVAL;
3788 if (wait_for_time != -1)
3789 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3791 while ((num_ev == 0) && keep_trying);
3797 vppcom_mq_epoll_fd (void)
3799 vcl_worker_t *wrk = vcl_worker_get_current ();
3800 return wrk->mqs_epfd;
3804 vppcom_session_index (vcl_session_handle_t session_handle)
3806 return session_handle & 0xFFFFFF;
3810 vppcom_session_worker (vcl_session_handle_t session_handle)
3812 return session_handle >> 24;
3816 vppcom_worker_register (void)
3822 if (!vcl_worker_alloc_and_init ())
3823 return VPPCOM_EEXIST;
3825 wrk = vcl_worker_get_current ();
3826 wrk_name = format (0, "%s-wrk-%u", vcm->app_name, wrk->wrk_index);
3828 rv = vppcom_connect_to_vpp ((char *) wrk_name);
3829 vec_free (wrk_name);
3832 return VPPCOM_EFAULT;
3834 if (vcl_worker_register_with_vpp ())
3835 return VPPCOM_EEXIST;
3841 vppcom_worker_unregister (void)
3843 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3844 vcl_set_worker_index (~0);
3848 vppcom_worker_index_set (int index)
3850 vcl_set_worker_index (index);
3854 vppcom_worker_index (void)
3856 return vcl_get_worker_index ();
3860 vppcom_worker_mqs_epfd (void)
3862 vcl_worker_t *wrk = vcl_worker_get_current ();
3863 if (!vcm->cfg.use_mq_eventfd)
3865 return wrk->mqs_epfd;
3869 vppcom_session_is_connectable_listener (uint32_t session_handle)
3871 vcl_session_t *session;
3872 vcl_worker_t *wrk = vcl_worker_get_current ();
3873 session = vcl_session_get_w_handle (wrk, session_handle);
3875 return VPPCOM_EBADFD;
3876 return vcl_session_is_connectable_listener (wrk, session);
3880 vppcom_session_listener (uint32_t session_handle)
3882 vcl_worker_t *wrk = vcl_worker_get_current ();
3883 vcl_session_t *listen_session, *session;
3884 session = vcl_session_get_w_handle (wrk, session_handle);
3886 return VPPCOM_EBADFD;
3887 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3888 return VPPCOM_EBADFD;
3889 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3890 if (!listen_session)
3891 return VPPCOM_EBADFD;
3892 return vcl_session_handle (listen_session);
3896 vppcom_session_n_accepted (uint32_t session_handle)
3898 vcl_worker_t *wrk = vcl_worker_get_current ();
3899 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3901 return VPPCOM_EBADFD;
3902 return session->n_accepted_sessions;
3906 vppcom_proto_str (vppcom_proto_t proto)
3908 char const *proto_str;
3912 case VPPCOM_PROTO_TCP:
3915 case VPPCOM_PROTO_UDP:
3918 case VPPCOM_PROTO_TLS:
3921 case VPPCOM_PROTO_QUIC:
3925 proto_str = "UNKNOWN";
3932 vppcom_retval_str (int retval)
3943 st = "VPPCOM_EAGAIN";
3947 st = "VPPCOM_EFAULT";
3951 st = "VPPCOM_ENOMEM";
3955 st = "VPPCOM_EINVAL";
3959 st = "VPPCOM_EBADFD";
3962 case VPPCOM_EAFNOSUPPORT:
3963 st = "VPPCOM_EAFNOSUPPORT";
3966 case VPPCOM_ECONNABORTED:
3967 st = "VPPCOM_ECONNABORTED";
3970 case VPPCOM_ECONNRESET:
3971 st = "VPPCOM_ECONNRESET";
3974 case VPPCOM_ENOTCONN:
3975 st = "VPPCOM_ENOTCONN";
3978 case VPPCOM_ECONNREFUSED:
3979 st = "VPPCOM_ECONNREFUSED";
3982 case VPPCOM_ETIMEDOUT:
3983 st = "VPPCOM_ETIMEDOUT";
3987 st = "UNKNOWN_STATE";
3995 * fd.io coding-style-patch-verification: ON
3998 * eval: (c-set-style "gnu")