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_send_worker_rpc (u32 dst_wrk_index, void *data, u32 data_len)
357 app_session_evt_t _app_evt, *app_evt = &_app_evt;
358 session_app_wrk_rpc_msg_t *mp;
359 vcl_worker_t *dst_wrk, *wrk;
362 if (data_len > sizeof (mp->data))
365 clib_spinlock_lock (&vcm->workers_lock);
367 dst_wrk = vcl_worker_get_if_valid (dst_wrk_index);
371 wrk = vcl_worker_get_current ();
372 mq = vcl_worker_ctrl_mq (wrk);
373 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_WRK_RPC);
374 mp = (session_app_wrk_rpc_msg_t *) app_evt->evt->data;
375 mp->client_index = wrk->my_client_index;
376 mp->wrk_index = dst_wrk->vpp_wrk_index;
377 clib_memcpy (mp->data, data, data_len);
378 app_send_ctrl_evt_to_vpp (mq, app_evt);
381 clib_spinlock_unlock (&vcm->workers_lock);
385 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp,
388 vcl_session_t *session, *listen_session;
389 svm_fifo_t *rx_fifo, *tx_fifo;
393 session = vcl_session_alloc (wrk);
395 listen_session = vcl_session_get (wrk, ls_index);
396 if (listen_session->vpp_handle != mp->listener_handle)
398 VDBG (0, "ERROR: listener handle %lu does not match session %u",
399 mp->listener_handle, ls_index);
403 if (vcl_segment_is_not_mounted (wrk, mp->segment_handle))
405 VDBG (0, "ERROR: segment for session %u is not mounted!",
406 session->session_index);
410 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
411 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
412 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
414 rx_fifo->client_session_index = session->session_index;
415 tx_fifo->client_session_index = session->session_index;
416 rx_fifo->client_thread_index = vcl_get_worker_index ();
417 tx_fifo->client_thread_index = vcl_get_worker_index ();
418 vpp_wrk_index = tx_fifo->master_thread_index;
419 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
420 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
422 session->vpp_handle = mp->handle;
423 session->vpp_thread_index = rx_fifo->master_thread_index;
424 session->rx_fifo = rx_fifo;
425 session->tx_fifo = tx_fifo;
427 session->session_state = STATE_ACCEPT;
428 session->transport.rmt_port = mp->rmt.port;
429 session->transport.is_ip4 = mp->rmt.is_ip4;
430 clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
431 sizeof (ip46_address_t));
433 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
434 session->transport.lcl_port = listen_session->transport.lcl_port;
435 session->transport.lcl_ip = listen_session->transport.lcl_ip;
436 session->session_type = listen_session->session_type;
437 session->is_dgram = vcl_proto_is_dgram (session->session_type);
438 session->listener_index = listen_session->session_index;
439 listen_session->n_accepted_sessions++;
441 VDBG (1, "session %u [0x%llx]: client accept request from %s address %U"
442 " port %d queue %p!", session->session_index, mp->handle,
443 mp->rmt.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->rmt.ip,
444 mp->rmt.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
445 clib_net_to_host_u16 (mp->rmt.port), session->vpp_evt_q);
446 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
448 vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context,
449 session->vpp_handle, 0);
451 return session->session_index;
454 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
455 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
456 VNET_API_ERROR_INVALID_ARGUMENT);
457 vcl_session_free (wrk, session);
458 return VCL_INVALID_SESSION_INDEX;
462 vcl_session_connected_handler (vcl_worker_t * wrk,
463 session_connected_msg_t * mp)
465 u32 session_index, vpp_wrk_index;
466 svm_fifo_t *rx_fifo, *tx_fifo;
467 vcl_session_t *session = 0;
469 session_index = mp->context;
470 session = vcl_session_get (wrk, session_index);
473 VDBG (0, "ERROR: vpp handle 0x%llx has no session index (%u)!",
474 mp->handle, session_index);
475 return VCL_INVALID_SESSION_INDEX;
479 VDBG (0, "ERROR: session index %u: connect failed! %U",
480 session_index, format_session_error, mp->retval);
481 session->session_state = STATE_DETACHED | STATE_DISCONNECT;
482 session->vpp_handle = mp->handle;
483 return session_index;
486 session->vpp_handle = mp->handle;
487 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
489 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
490 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
491 if (vcl_segment_is_not_mounted (wrk, mp->segment_handle))
493 VDBG (0, "segment for session %u is not mounted!",
494 session->session_index);
495 session->session_state = STATE_DETACHED | STATE_DISCONNECT;
496 vcl_send_session_disconnect (wrk, session);
497 return session_index;
500 rx_fifo->client_session_index = session_index;
501 tx_fifo->client_session_index = session_index;
502 rx_fifo->client_thread_index = vcl_get_worker_index ();
503 tx_fifo->client_thread_index = vcl_get_worker_index ();
505 vpp_wrk_index = tx_fifo->master_thread_index;
506 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
507 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
511 session->ct_rx_fifo = uword_to_pointer (mp->ct_rx_fifo, svm_fifo_t *);
512 session->ct_tx_fifo = uword_to_pointer (mp->ct_tx_fifo, svm_fifo_t *);
513 if (vcl_segment_is_not_mounted (wrk, mp->ct_segment_handle))
515 VDBG (0, "ct segment for session %u is not mounted!",
516 session->session_index);
517 session->session_state = STATE_DETACHED | STATE_DISCONNECT;
518 vcl_send_session_disconnect (wrk, session);
519 return session_index;
523 session->rx_fifo = rx_fifo;
524 session->tx_fifo = tx_fifo;
525 session->vpp_thread_index = rx_fifo->master_thread_index;
526 session->transport.is_ip4 = mp->lcl.is_ip4;
527 clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
528 sizeof (session->transport.lcl_ip));
529 session->transport.lcl_port = mp->lcl.port;
530 session->session_state = STATE_CONNECT;
532 /* Add it to lookup table */
533 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
535 VDBG (1, "session %u [0x%llx] connected! rx_fifo %p, refcnt %d, tx_fifo %p,"
536 " refcnt %d", session_index, mp->handle, session->rx_fifo,
537 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
539 return session_index;
543 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
545 vcl_session_msg_t *accepted_msg;
548 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
550 accepted_msg = &session->accept_evts_fifo[i];
551 if (accepted_msg->accepted_msg.handle == handle)
553 accepted_msg->flags |= flags;
561 vcl_session_reset_handler (vcl_worker_t * wrk,
562 session_reset_msg_t * reset_msg)
564 vcl_session_t *session;
567 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
568 session = vcl_session_get (wrk, sid);
571 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
572 return VCL_INVALID_SESSION_INDEX;
575 /* Caught a reset before actually accepting the session */
576 if (session->session_state == STATE_LISTEN)
579 if (!vcl_flag_accepted_session (session, reset_msg->handle,
580 VCL_ACCEPTED_F_RESET))
581 VDBG (0, "session was not accepted!");
582 return VCL_INVALID_SESSION_INDEX;
585 if (session->session_state != STATE_CLOSED)
586 session->session_state = STATE_DISCONNECT;
587 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
592 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
594 vcl_session_t *session;
595 u32 sid = mp->context;
597 session = vcl_session_get (wrk, sid);
600 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
601 format_session_error, mp->retval);
604 session->session_state = STATE_DETACHED;
605 session->vpp_handle = mp->handle;
610 VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!",
612 return VCL_INVALID_SESSION_INDEX;
616 session->vpp_handle = mp->handle;
617 session->transport.is_ip4 = mp->lcl_is_ip4;
618 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
619 sizeof (ip46_address_t));
620 session->transport.lcl_port = mp->lcl_port;
621 vcl_session_table_add_listener (wrk, mp->handle, sid);
622 session->session_state = STATE_LISTEN;
624 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
625 vec_validate (wrk->vpp_event_queues, 0);
626 wrk->vpp_event_queues[0] = session->vpp_evt_q;
628 if (vcl_session_is_cl (session))
630 svm_fifo_t *rx_fifo, *tx_fifo;
631 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
632 rx_fifo = uword_to_pointer (mp->rx_fifo, svm_fifo_t *);
633 rx_fifo->client_session_index = sid;
634 tx_fifo = uword_to_pointer (mp->tx_fifo, svm_fifo_t *);
635 tx_fifo->client_session_index = sid;
636 session->rx_fifo = rx_fifo;
637 session->tx_fifo = tx_fifo;
640 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
645 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
647 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
650 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
653 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
656 if (s->session_state != STATE_DISCONNECT)
658 /* Connected udp listener */
659 if (s->session_type == VPPCOM_PROTO_UDP
660 && s->session_state == STATE_CLOSED)
663 VDBG (0, "Unlisten session in wrong state %llx", mp->handle);
668 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
669 s->session_index, mp->handle, format_session_error, mp->retval);
671 if (mp->context != wrk->wrk_index)
672 VDBG (0, "wrong context");
674 vcl_session_table_del_vpp_handle (wrk, mp->handle);
675 vcl_session_free (wrk, s);
679 vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
681 session_migrated_msg_t *mp = (session_migrated_msg_t *) data;
684 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
687 VDBG (0, "Migrated notification with wrong handle %llx", mp->handle);
691 s->vpp_thread_index = mp->vpp_thread_index;
692 s->vpp_handle = mp->new_handle;
693 s->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
695 vec_validate (wrk->vpp_event_queues, s->vpp_thread_index);
696 wrk->vpp_event_queues[s->vpp_thread_index] = s->vpp_evt_q;
698 vcl_session_table_del_vpp_handle (wrk, mp->handle);
699 vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
701 /* Generate new tx event if we have outstanding data */
702 if (svm_fifo_has_event (s->tx_fifo))
703 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
704 SESSION_IO_EVT_TX, SVM_Q_WAIT);
706 VDBG (0, "Migrated 0x%lx to thread %u 0x%lx", mp->handle,
707 s->vpp_thread_index, mp->new_handle);
710 static vcl_session_t *
711 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
713 vcl_session_msg_t *vcl_msg;
714 vcl_session_t *session;
716 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
717 if (PREDICT_FALSE (session != 0))
718 VWRN ("session overlap handle %lu state %u!", msg->handle,
719 session->session_state);
721 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
724 VERR ("couldn't find listen session: listener handle %llx",
725 msg->listener_handle);
729 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
731 vcl_msg->accepted_msg = *msg;
732 /* Session handle points to listener until fully accepted by app */
733 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
738 static vcl_session_t *
739 vcl_session_disconnected_handler (vcl_worker_t * wrk,
740 session_disconnected_msg_t * msg)
742 vcl_session_t *session;
744 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
747 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
751 /* Late disconnect notification on a session that has been closed */
752 if (session->session_state == STATE_CLOSED)
755 /* Caught a disconnect before actually accepting the session */
756 if (session->session_state == STATE_LISTEN)
758 if (!vcl_flag_accepted_session (session, msg->handle,
759 VCL_ACCEPTED_F_CLOSED))
760 VDBG (0, "session was not accepted!");
764 /* If not already reset change state */
765 if (session->session_state != STATE_DISCONNECT)
766 session->session_state = STATE_VPP_CLOSING;
772 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
774 session_cleanup_msg_t *msg;
775 vcl_session_t *session;
777 msg = (session_cleanup_msg_t *) data;
778 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
781 VDBG (0, "disconnect confirmed for unknown handle 0x%llx", msg->handle);
785 if (msg->type == SESSION_CLEANUP_TRANSPORT)
787 /* Transport was cleaned up before we confirmed close. Probably the
788 * app is still waiting for some data that cannot be delivered.
789 * Confirm close to make sure everything is cleaned up */
790 if (session->session_state == STATE_VPP_CLOSING)
791 vcl_session_cleanup (wrk, session, vcl_session_handle (session),
792 1 /* do_disconnect */ );
796 vcl_session_table_del_vpp_handle (wrk, msg->handle);
797 /* Should not happen. App did not close the connection so don't free it. */
798 if (session->session_state != STATE_CLOSED)
800 VDBG (0, "app did not close session %d", session->session_index);
801 session->session_state = STATE_DETACHED;
802 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
805 vcl_session_free (wrk, session);
809 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
811 session_req_worker_update_msg_t *msg;
814 msg = (session_req_worker_update_msg_t *) data;
815 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
819 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
823 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
825 session_worker_update_reply_msg_t *msg;
828 msg = (session_worker_update_reply_msg_t *) data;
829 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
832 VDBG (0, "unknown handle 0x%llx", msg->handle);
835 if (vcl_segment_is_not_mounted (wrk, msg->segment_handle))
837 clib_warning ("segment for session %u is not mounted!",
844 s->rx_fifo = uword_to_pointer (msg->rx_fifo, svm_fifo_t *);
845 s->tx_fifo = uword_to_pointer (msg->tx_fifo, svm_fifo_t *);
846 s->rx_fifo->client_session_index = s->session_index;
847 s->tx_fifo->client_session_index = s->session_index;
848 s->rx_fifo->client_thread_index = wrk->wrk_index;
849 s->tx_fifo->client_thread_index = wrk->wrk_index;
851 s->session_state = STATE_UPDATED;
853 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
854 s->vpp_handle, wrk->wrk_index);
858 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
860 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
861 session_app_add_segment_msg_t *msg;
865 msg = (session_app_add_segment_msg_t *) data;
869 vl_socket_client_recv_fd_msg2 (&wrk->bapi_sock_ctx, &fd, 1, 5);
870 seg_type = SSVM_SEGMENT_MEMFD;
873 segment_handle = msg->segment_handle;
874 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
876 clib_warning ("invalid segment handle");
880 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
883 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
887 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
892 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
894 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
895 vcl_segment_detach (msg->segment_handle);
896 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
900 vcl_worker_rpc_handler (vcl_worker_t * wrk, void *data)
902 if (!vcm->wrk_rpc_fn)
905 (vcm->wrk_rpc_fn) (data);
909 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
911 session_disconnected_msg_t *disconnected_msg;
912 vcl_session_t *session;
914 switch (e->event_type)
916 case SESSION_IO_EVT_RX:
917 case SESSION_IO_EVT_TX:
918 session = vcl_session_get (wrk, e->session_index);
919 if (!session || !(session->session_state & STATE_OPEN))
921 vec_add1 (wrk->unhandled_evts_vector, *e);
923 case SESSION_CTRL_EVT_ACCEPTED:
924 vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
926 case SESSION_CTRL_EVT_CONNECTED:
927 vcl_session_connected_handler (wrk,
928 (session_connected_msg_t *) e->data);
930 case SESSION_CTRL_EVT_DISCONNECTED:
931 disconnected_msg = (session_disconnected_msg_t *) e->data;
932 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
935 VDBG (0, "disconnected session %u [0x%llx]", session->session_index,
936 session->vpp_handle);
938 case SESSION_CTRL_EVT_RESET:
939 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
941 case SESSION_CTRL_EVT_BOUND:
942 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
944 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
945 vcl_session_unlisten_reply_handler (wrk, e->data);
947 case SESSION_CTRL_EVT_MIGRATED:
948 vcl_session_migrated_handler (wrk, e->data);
950 case SESSION_CTRL_EVT_CLEANUP:
951 vcl_session_cleanup_handler (wrk, e->data);
953 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
954 vcl_session_req_worker_update_handler (wrk, e->data);
956 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
957 vcl_session_worker_update_reply_handler (wrk, e->data);
959 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
960 vcl_session_app_add_segment_handler (wrk, e->data);
962 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
963 vcl_session_app_del_segment_handler (wrk, e->data);
965 case SESSION_CTRL_EVT_RPC:
966 vcl_worker_rpc_handler (wrk, e->data);
969 clib_warning ("unhandled %u", e->event_type);
975 vppcom_wait_for_session_state_change (u32 session_index,
976 vcl_session_state_t state,
979 vcl_worker_t *wrk = vcl_worker_get_current ();
980 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
981 vcl_session_t *volatile session;
987 session = vcl_session_get (wrk, session_index);
988 if (PREDICT_FALSE (!session))
990 return VPPCOM_EBADFD;
992 if (session->session_state & state)
996 if (session->session_state & STATE_DETACHED)
998 return VPPCOM_ECONNREFUSED;
1001 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
1006 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1007 vcl_handle_mq_event (wrk, e);
1008 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1010 while (clib_time_now (&wrk->clib_time) < timeout);
1012 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
1013 vppcom_session_state_str (state));
1014 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
1016 return VPPCOM_ETIMEDOUT;
1020 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
1022 vcl_session_state_t state;
1026 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
1029 vec_foreach (sip, wrk->pending_session_wrk_updates)
1031 s = vcl_session_get (wrk, *sip);
1032 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
1033 state = s->session_state;
1034 vppcom_wait_for_session_state_change (s->session_index, STATE_UPDATED, 5);
1035 s->session_state = state;
1037 vec_reset_length (wrk->pending_session_wrk_updates);
1041 vcl_flush_mq_events (void)
1043 vcl_worker_t *wrk = vcl_worker_get_current ();
1044 svm_msg_q_msg_t *msg;
1049 mq = wrk->app_event_queue;
1050 svm_msg_q_lock (mq);
1051 vcl_mq_dequeue_batch (wrk, mq, ~0);
1052 svm_msg_q_unlock (mq);
1054 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1056 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1057 e = svm_msg_q_msg_data (mq, msg);
1058 vcl_handle_mq_event (wrk, e);
1059 svm_msg_q_free_msg (mq, msg);
1061 vec_reset_length (wrk->mq_msg_vector);
1062 vcl_handle_pending_wrk_updates (wrk);
1066 vppcom_app_session_enable (void)
1070 if (vcm->app_state != STATE_APP_ENABLED)
1072 vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
1073 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
1074 if (PREDICT_FALSE (rv))
1076 VDBG (0, "application session enable timed out! returning %d (%s)",
1077 rv, vppcom_retval_str (rv));
1085 vppcom_app_attach (void)
1089 vppcom_app_send_attach ();
1090 rv = vcl_wait_for_app_state_change (STATE_APP_ATTACHED);
1091 if (PREDICT_FALSE (rv))
1093 VDBG (0, "application attach timed out! returning %d (%s)", rv,
1094 vppcom_retval_str (rv));
1102 vppcom_session_unbind (u32 session_handle)
1104 vcl_worker_t *wrk = vcl_worker_get_current ();
1105 session_accepted_msg_t *accepted_msg;
1106 vcl_session_t *session = 0;
1107 vcl_session_msg_t *evt;
1109 session = vcl_session_get_w_handle (wrk, session_handle);
1111 return VPPCOM_EBADFD;
1113 /* Flush pending accept events, if any */
1114 while (clib_fifo_elts (session->accept_evts_fifo))
1116 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1117 accepted_msg = &evt->accepted_msg;
1118 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1119 vcl_send_session_accepted_reply (session->vpp_evt_q,
1120 accepted_msg->context,
1121 session->vpp_handle, -1);
1123 clib_fifo_free (session->accept_evts_fifo);
1125 vcl_send_session_unlisten (wrk, session);
1127 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1128 session->vpp_handle);
1129 vcl_evt (VCL_EVT_UNBIND, session);
1131 session->vpp_handle = ~0;
1132 session->session_state = STATE_DISCONNECT;
1138 vppcom_session_disconnect (u32 session_handle)
1140 vcl_worker_t *wrk = vcl_worker_get_current ();
1141 svm_msg_q_t *vpp_evt_q;
1142 vcl_session_t *session, *listen_session;
1143 vcl_session_state_t state;
1146 session = vcl_session_get_w_handle (wrk, session_handle);
1148 return VPPCOM_EBADFD;
1150 vpp_handle = session->vpp_handle;
1151 state = session->session_state;
1153 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
1154 vpp_handle, state, vppcom_session_state_str (state));
1156 if (PREDICT_FALSE (state & STATE_LISTEN))
1158 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
1159 return VPPCOM_EBADFD;
1162 if (state & STATE_VPP_CLOSING)
1164 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
1165 vcl_send_session_disconnected_reply (vpp_evt_q, wrk->my_client_index,
1167 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
1168 session->session_index, vpp_handle);
1172 VDBG (1, "session %u [0x%llx]: sending disconnect...",
1173 session->session_index, vpp_handle);
1174 vcl_send_session_disconnect (wrk, session);
1177 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
1179 listen_session = vcl_session_get (wrk, session->listener_index);
1180 listen_session->n_accepted_sessions--;
1189 * Notify vpp of the disconnect and mark the worker as free. If we're the
1190 * last worker, do a full cleanup otherwise, since we're probably a forked
1191 * child, avoid syscalls as much as possible. We might've lost privileges.
1194 vppcom_app_exit (void)
1196 if (!pool_elts (vcm->workers))
1198 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1199 vcl_set_worker_index (~0);
1200 vcl_elog_stop (vcm);
1204 * VPPCOM Public API functions
1207 vppcom_app_create (const char *app_name)
1209 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1214 VDBG (1, "already initialized");
1215 return VPPCOM_EEXIST;
1219 vppcom_cfg (&vcm->cfg);
1220 vcl_cfg = &vcm->cfg;
1222 vcm->main_cpu = pthread_self ();
1223 vcm->main_pid = getpid ();
1224 vcm->app_name = format (0, "%s", app_name);
1225 vppcom_init_error_string_table ();
1226 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1227 20 /* timeout in secs */ );
1228 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1229 clib_spinlock_init (&vcm->workers_lock);
1230 clib_rwlock_init (&vcm->segment_table_lock);
1231 atexit (vppcom_app_exit);
1233 /* Allocate default worker */
1234 vcl_worker_alloc_and_init ();
1236 /* API hookup and connect to VPP */
1237 vcl_elog_init (vcm);
1238 vcm->app_state = STATE_APP_START;
1239 rv = vppcom_connect_to_vpp (app_name);
1242 VERR ("couldn't connect to VPP!");
1245 VDBG (0, "sending session enable");
1246 rv = vppcom_app_session_enable ();
1249 VERR ("vppcom_app_session_enable() failed!");
1253 VDBG (0, "sending app attach");
1254 rv = vppcom_app_attach ();
1257 VERR ("vppcom_app_attach() failed!");
1261 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1262 vcm->workers[0].my_client_index, vcm->workers[0].my_client_index);
1268 vppcom_app_destroy (void)
1270 vcl_worker_t *wrk, *current_wrk;
1271 struct dlmallinfo mi;
1274 if (!pool_elts (vcm->workers))
1277 vcl_evt (VCL_EVT_DETACH, vcm);
1279 current_wrk = vcl_worker_get_current ();
1282 pool_foreach (wrk, vcm->workers, ({
1283 if (current_wrk != wrk)
1284 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1288 vcl_send_app_detach (current_wrk);
1289 vppcom_disconnect_from_vpp ();
1290 vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
1292 vcl_elog_stop (vcm);
1295 * Free the heap and fix vcm
1297 heap = clib_mem_get_heap ();
1298 mi = mspace_mallinfo (heap);
1299 munmap (mspace_least_addr (heap), mi.arena);
1301 vcm = &_vppcom_main;
1306 vppcom_session_create (u8 proto, u8 is_nonblocking)
1308 vcl_worker_t *wrk = vcl_worker_get_current ();
1309 vcl_session_t *session;
1311 session = vcl_session_alloc (wrk);
1313 session->session_type = proto;
1314 session->session_state = STATE_CLOSED;
1315 session->vpp_handle = ~0;
1316 session->is_dgram = vcl_proto_is_dgram (proto);
1319 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
1321 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1322 is_nonblocking, session_index);
1324 VDBG (0, "created session %u", session->session_index);
1326 return vcl_session_handle (session);
1330 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * session,
1331 vcl_session_handle_t sh, u8 do_disconnect)
1333 vcl_session_state_t state;
1334 u32 next_sh, vep_sh;
1339 is_vep = session->is_vep;
1340 next_sh = session->vep.next_sh;
1341 vep_sh = session->vep.vep_sh;
1342 state = session->session_state;
1343 vpp_handle = session->vpp_handle;
1345 VDBG (1, "session %u [0x%llx] closing", session->session_index, vpp_handle);
1349 while (next_sh != ~0)
1351 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1352 if (PREDICT_FALSE (rv < 0))
1353 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1354 " failed! rv %d (%s)", vpp_handle, next_sh, vep_sh, rv,
1355 vppcom_retval_str (rv));
1357 next_sh = session->vep.next_sh;
1362 if (session->is_vep_session)
1364 rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, sh, 0);
1366 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1367 "failed! rv %d (%s)", session->session_index, vpp_handle,
1368 vep_sh, rv, vppcom_retval_str (rv));
1373 VDBG (1, "session %u [0x%llx] disconnect skipped",
1374 session->session_index, vpp_handle);
1378 if (state & STATE_LISTEN)
1380 rv = vppcom_session_unbind (sh);
1381 if (PREDICT_FALSE (rv < 0))
1382 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1383 "rv %d (%s)", session->session_index, vpp_handle, rv,
1384 vppcom_retval_str (rv));
1387 else if ((state & STATE_OPEN)
1388 || (vcl_session_is_connectable_listener (wrk, session)))
1390 rv = vppcom_session_disconnect (sh);
1391 if (PREDICT_FALSE (rv < 0))
1392 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1393 " rv %d (%s)", session->session_index, vpp_handle,
1394 rv, vppcom_retval_str (rv));
1396 else if (state == STATE_DISCONNECT)
1398 svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, session);
1399 vcl_send_session_reset_reply (mq, wrk->my_client_index,
1400 session->vpp_handle, 0);
1402 else if (state == STATE_DETACHED)
1404 /* Should not happen. VPP cleaned up before app confirmed close */
1405 VDBG (0, "vpp freed session %d before close", session->session_index);
1409 session->session_state = STATE_CLOSED;
1411 /* Session is removed only after vpp confirms the disconnect */
1415 vcl_session_table_del_vpp_handle (wrk, vpp_handle);
1417 vcl_session_free (wrk, session);
1418 vcl_evt (VCL_EVT_CLOSE, session, rv);
1424 vppcom_session_close (uint32_t session_handle)
1426 vcl_worker_t *wrk = vcl_worker_get_current ();
1427 vcl_session_t *session;
1429 session = vcl_session_get_w_handle (wrk, session_handle);
1431 return VPPCOM_EBADFD;
1432 return vcl_session_cleanup (wrk, session, session_handle,
1433 1 /* do_disconnect */ );
1437 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1439 vcl_worker_t *wrk = vcl_worker_get_current ();
1440 vcl_session_t *session = 0;
1443 return VPPCOM_EINVAL;
1445 session = vcl_session_get_w_handle (wrk, session_handle);
1447 return VPPCOM_EBADFD;
1449 if (session->is_vep)
1451 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1452 session->session_index);
1453 return VPPCOM_EBADFD;
1456 session->transport.is_ip4 = ep->is_ip4;
1458 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1459 sizeof (ip4_address_t));
1461 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1462 sizeof (ip6_address_t));
1463 session->transport.lcl_port = ep->port;
1465 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1466 "proto %s", session->session_index, session_handle,
1467 session->transport.is_ip4 ? "IPv4" : "IPv6",
1468 format_ip46_address, &session->transport.lcl_ip,
1469 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1470 clib_net_to_host_u16 (session->transport.lcl_port),
1471 vppcom_proto_str (session->session_type));
1472 vcl_evt (VCL_EVT_BIND, session);
1474 if (session->session_type == VPPCOM_PROTO_UDP)
1475 vppcom_session_listen (session_handle, 10);
1481 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1483 vcl_worker_t *wrk = vcl_worker_get_current ();
1484 vcl_session_t *listen_session = 0;
1485 u64 listen_vpp_handle;
1488 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1489 if (!listen_session || listen_session->is_vep)
1490 return VPPCOM_EBADFD;
1492 if (q_len == 0 || q_len == ~0)
1493 q_len = vcm->cfg.listen_queue_size;
1495 listen_vpp_handle = listen_session->vpp_handle;
1496 if (listen_session->session_state & STATE_LISTEN)
1498 VDBG (0, "session %u [0x%llx]: already in listen state!",
1499 listen_sh, listen_vpp_handle);
1503 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1506 * Send listen request to vpp and wait for reply
1508 vcl_send_session_listen (wrk, listen_session);
1509 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1511 vcm->cfg.session_timeout);
1513 if (PREDICT_FALSE (rv))
1515 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1516 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1517 listen_sh, listen_session->vpp_handle, rv,
1518 vppcom_retval_str (rv));
1526 vppcom_session_tls_add_cert (uint32_t session_handle, char *cert,
1530 vcl_worker_t *wrk = vcl_worker_get_current ();
1531 vcl_session_t *session = 0;
1533 session = vcl_session_get_w_handle (wrk, session_handle);
1535 return VPPCOM_EBADFD;
1537 if (cert_len == 0 || cert_len == ~0)
1538 return VPPCOM_EBADFD;
1541 * Send listen request to vpp and wait for reply
1543 vppcom_send_application_tls_cert_add (session, cert, cert_len);
1544 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1545 vcl_wait_for_app_state_change (STATE_APP_READY);
1551 vppcom_session_tls_add_key (uint32_t session_handle, char *key,
1555 vcl_worker_t *wrk = vcl_worker_get_current ();
1556 vcl_session_t *session = 0;
1558 session = vcl_session_get_w_handle (wrk, session_handle);
1560 return VPPCOM_EBADFD;
1562 if (key_len == 0 || key_len == ~0)
1563 return VPPCOM_EBADFD;
1565 vppcom_send_application_tls_key_add (session, key, key_len);
1566 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1567 vcl_wait_for_app_state_change (STATE_APP_READY);
1572 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1576 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1578 return VPPCOM_EBADFD;
1581 if ((ls->session_state != STATE_LISTEN)
1582 && (!vcl_session_is_connectable_listener (wrk, ls)))
1585 "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1586 " (%s)", ls->vpp_handle, ls->session_state,
1587 vppcom_session_state_str (ls->session_state));
1588 return VPPCOM_EBADFD;
1594 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1596 if (!strcmp (proto_str, "TCP"))
1597 *proto = VPPCOM_PROTO_TCP;
1598 else if (!strcmp (proto_str, "tcp"))
1599 *proto = VPPCOM_PROTO_TCP;
1600 else if (!strcmp (proto_str, "UDP"))
1601 *proto = VPPCOM_PROTO_UDP;
1602 else if (!strcmp (proto_str, "udp"))
1603 *proto = VPPCOM_PROTO_UDP;
1604 else if (!strcmp (proto_str, "TLS"))
1605 *proto = VPPCOM_PROTO_TLS;
1606 else if (!strcmp (proto_str, "tls"))
1607 *proto = VPPCOM_PROTO_TLS;
1608 else if (!strcmp (proto_str, "QUIC"))
1609 *proto = VPPCOM_PROTO_QUIC;
1610 else if (!strcmp (proto_str, "quic"))
1611 *proto = VPPCOM_PROTO_QUIC;
1618 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1621 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1622 vcl_worker_t *wrk = vcl_worker_get_current ();
1623 session_accepted_msg_t accepted_msg;
1624 vcl_session_t *listen_session = 0;
1625 vcl_session_t *client_session = 0;
1626 vcl_session_msg_t *evt;
1627 svm_msg_q_msg_t msg;
1632 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1633 if (!listen_session)
1634 return VPPCOM_EBADFD;
1636 listen_session_index = listen_session->session_index;
1637 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1640 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1642 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1643 accept_flags = evt->flags;
1644 accepted_msg = evt->accepted_msg;
1648 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1649 VCL_SESS_ATTR_NONBLOCK);
1652 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1653 return VPPCOM_EAGAIN;
1655 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1656 return VPPCOM_EAGAIN;
1658 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1659 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1661 vcl_handle_mq_event (wrk, e);
1662 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1665 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1666 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1672 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1673 listen_session_index);
1674 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1675 return VPPCOM_ECONNABORTED;
1677 listen_session = vcl_session_get (wrk, listen_session_index);
1678 client_session = vcl_session_get (wrk, client_session_index);
1680 if (flags & O_NONBLOCK)
1681 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1683 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1684 " flags %d, is_nonblocking %u", listen_session->session_index,
1685 listen_session->vpp_handle, client_session_index,
1686 client_session->vpp_handle, flags,
1687 VCL_SESS_ATTR_TEST (client_session->attr, VCL_SESS_ATTR_NONBLOCK));
1691 ep->is_ip4 = client_session->transport.is_ip4;
1692 ep->port = client_session->transport.rmt_port;
1693 if (client_session->transport.is_ip4)
1694 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1695 sizeof (ip4_address_t));
1697 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1698 sizeof (ip6_address_t));
1701 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1702 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1703 client_session_index, client_session->vpp_handle,
1704 format_ip46_address, &client_session->transport.rmt_ip,
1705 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1706 clib_net_to_host_u16 (client_session->transport.rmt_port),
1707 format_ip46_address, &client_session->transport.lcl_ip,
1708 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1709 clib_net_to_host_u16 (client_session->transport.lcl_port));
1710 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1711 client_session_index);
1714 * Session might have been closed already
1718 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1719 client_session->session_state = STATE_VPP_CLOSING;
1720 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1721 client_session->session_state = STATE_DISCONNECT;
1723 return vcl_session_handle (client_session);
1727 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1729 vcl_worker_t *wrk = vcl_worker_get_current ();
1730 vcl_session_t *session = 0;
1734 session = vcl_session_get_w_handle (wrk, session_handle);
1736 return VPPCOM_EBADFD;
1737 session_index = session->session_index;
1739 if (PREDICT_FALSE (session->is_vep))
1741 VDBG (0, "ERROR: cannot connect epoll session %u!",
1742 session->session_index);
1743 return VPPCOM_EBADFD;
1746 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1748 VDBG (0, "session handle %u [0x%llx]: session already "
1749 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1750 session_handle, session->vpp_handle,
1751 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1752 &session->transport.rmt_ip, session->transport.is_ip4 ?
1753 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1754 clib_net_to_host_u16 (session->transport.rmt_port),
1755 vppcom_proto_str (session->session_type), session->session_state,
1756 vppcom_session_state_str (session->session_state));
1760 /* Attempt to connect a connectionless listener */
1761 if (PREDICT_FALSE (session->session_state & STATE_LISTEN))
1763 if (session->session_type != VPPCOM_PROTO_UDP)
1764 return VPPCOM_EINVAL;
1765 vcl_send_session_unlisten (wrk, session);
1766 session->session_state = STATE_CLOSED;
1769 session->transport.is_ip4 = server_ep->is_ip4;
1770 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1771 session->transport.rmt_port = server_ep->port;
1772 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1773 session->flags |= VCL_SESSION_F_CONNECTED;
1775 VDBG (0, "session handle %u (%s): connecting to peer %s %U "
1776 "port %d proto %s", session_handle,
1777 vppcom_session_state_str (session->session_state),
1778 session->transport.is_ip4 ? "IPv4" : "IPv6",
1779 format_ip46_address,
1780 &session->transport.rmt_ip, session->transport.is_ip4 ?
1781 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1782 clib_net_to_host_u16 (session->transport.rmt_port),
1783 vppcom_proto_str (session->session_type));
1785 vcl_send_session_connect (wrk, session);
1787 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK))
1788 return VPPCOM_EINPROGRESS;
1791 * Wait for reply from vpp if blocking
1793 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1794 vcm->cfg.session_timeout);
1796 session = vcl_session_get (wrk, session_index);
1797 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1798 session->vpp_handle, rv ? "failed" : "succeeded");
1804 vppcom_session_stream_connect (uint32_t session_handle,
1805 uint32_t parent_session_handle)
1807 vcl_worker_t *wrk = vcl_worker_get_current ();
1808 vcl_session_t *session, *parent_session;
1809 u32 session_index, parent_session_index;
1812 session = vcl_session_get_w_handle (wrk, session_handle);
1814 return VPPCOM_EBADFD;
1815 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1816 if (!parent_session)
1817 return VPPCOM_EBADFD;
1819 session_index = session->session_index;
1820 parent_session_index = parent_session->session_index;
1821 if (PREDICT_FALSE (session->is_vep))
1823 VDBG (0, "ERROR: cannot connect epoll session %u!",
1824 session->session_index);
1825 return VPPCOM_EBADFD;
1828 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1830 VDBG (0, "session handle %u [0x%llx]: session already "
1831 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1832 session_handle, session->vpp_handle,
1833 parent_session_handle, parent_session->vpp_handle,
1834 vppcom_proto_str (session->session_type), session->session_state,
1835 vppcom_session_state_str (session->session_state));
1839 /* Connect to quic session specifics */
1840 session->transport.is_ip4 = parent_session->transport.is_ip4;
1841 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1842 session->transport.rmt_port = 0;
1843 session->parent_handle = parent_session->vpp_handle;
1845 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1846 session_handle, parent_session_handle, parent_session->vpp_handle);
1849 * Send connect request and wait for reply from vpp
1851 vcl_send_session_connect (wrk, session);
1852 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1853 vcm->cfg.session_timeout);
1855 session->listener_index = parent_session_index;
1856 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1858 parent_session->n_accepted_sessions++;
1860 session = vcl_session_get (wrk, session_index);
1861 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1862 session->vpp_handle, rv ? "failed" : "succeeded");
1868 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1870 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1874 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1877 vcl_worker_t *wrk = vcl_worker_get_current ();
1878 int n_read = 0, is_nonblocking;
1879 vcl_session_t *s = 0;
1880 svm_fifo_t *rx_fifo;
1881 svm_msg_q_msg_t msg;
1886 if (PREDICT_FALSE (!buf))
1887 return VPPCOM_EINVAL;
1889 s = vcl_session_get_w_handle (wrk, session_handle);
1890 if (PREDICT_FALSE (!s || s->is_vep))
1891 return VPPCOM_EBADFD;
1893 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1895 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1896 s->session_index, s->vpp_handle, s->session_state,
1897 vppcom_session_state_str (s->session_state));
1898 return vcl_session_closed_error (s);
1901 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1902 is_ct = vcl_session_is_ct (s);
1903 mq = wrk->app_event_queue;
1904 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1907 if (svm_fifo_is_empty_cons (rx_fifo))
1911 if (vcl_session_is_closing (s))
1912 return vcl_session_closing_error (s);
1913 svm_fifo_unset_event (s->rx_fifo);
1914 return VPPCOM_EWOULDBLOCK;
1916 while (svm_fifo_is_empty_cons (rx_fifo))
1918 if (vcl_session_is_closing (s))
1919 return vcl_session_closing_error (s);
1921 svm_fifo_unset_event (s->rx_fifo);
1922 svm_msg_q_lock (mq);
1923 if (svm_msg_q_is_empty (mq))
1924 svm_msg_q_wait (mq);
1926 svm_msg_q_sub_w_lock (mq, &msg);
1927 e = svm_msg_q_msg_data (mq, &msg);
1928 svm_msg_q_unlock (mq);
1929 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1930 vcl_handle_mq_event (wrk, e);
1931 svm_msg_q_free_msg (mq, &msg);
1936 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1938 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1940 if (svm_fifo_is_empty_cons (rx_fifo))
1941 svm_fifo_unset_event (s->rx_fifo);
1943 /* Cut-through sessions might request tx notifications on rx fifos */
1944 if (PREDICT_FALSE (rx_fifo->want_deq_ntf))
1946 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1947 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1948 svm_fifo_reset_has_deq_ntf (s->rx_fifo);
1951 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1952 s->vpp_handle, n_read, rx_fifo);
1958 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1960 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1964 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1966 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1970 vppcom_session_read_segments (uint32_t session_handle,
1971 vppcom_data_segments_t ds)
1973 vcl_worker_t *wrk = vcl_worker_get_current ();
1974 int n_read = 0, is_nonblocking;
1975 vcl_session_t *s = 0;
1976 svm_fifo_t *rx_fifo;
1977 svm_msg_q_msg_t msg;
1982 s = vcl_session_get_w_handle (wrk, session_handle);
1983 if (PREDICT_FALSE (!s || s->is_vep))
1984 return VPPCOM_EBADFD;
1986 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1987 return vcl_session_closed_error (s);
1989 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1990 is_ct = vcl_session_is_ct (s);
1991 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1992 rx_fifo = s->rx_fifo;
1996 svm_fifo_unset_event (s->rx_fifo);
1998 if (svm_fifo_is_empty_cons (rx_fifo))
2002 svm_fifo_unset_event (rx_fifo);
2003 return VPPCOM_EWOULDBLOCK;
2005 while (svm_fifo_is_empty_cons (rx_fifo))
2007 if (vcl_session_is_closing (s))
2008 return vcl_session_closing_error (s);
2010 svm_fifo_unset_event (rx_fifo);
2011 svm_msg_q_lock (mq);
2012 if (svm_msg_q_is_empty (mq))
2013 svm_msg_q_wait (mq);
2015 svm_msg_q_sub_w_lock (mq, &msg);
2016 e = svm_msg_q_msg_data (mq, &msg);
2017 svm_msg_q_unlock (mq);
2018 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
2019 vcl_handle_mq_event (wrk, e);
2020 svm_msg_q_free_msg (mq, &msg);
2024 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_seg_t *) ds);
2025 svm_fifo_unset_event (rx_fifo);
2031 vppcom_session_free_segments (uint32_t session_handle,
2032 vppcom_data_segments_t ds)
2034 vcl_worker_t *wrk = vcl_worker_get_current ();
2037 s = vcl_session_get_w_handle (wrk, session_handle);
2038 if (PREDICT_FALSE (!s || s->is_vep))
2041 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_seg_t *) ds);
2045 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
2047 u32 first_copy = clib_min (ds[0].len, max_bytes);
2048 clib_memcpy_fast (buf, ds[0].data, first_copy);
2049 if (first_copy < max_bytes)
2051 clib_memcpy_fast (buf + first_copy, ds[1].data,
2052 clib_min (ds[1].len, max_bytes - first_copy));
2058 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
2060 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
2064 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2066 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2068 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2074 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2075 size_t n, u8 is_flush, u8 is_dgram)
2077 int n_write, is_nonblocking;
2078 session_evt_type_t et;
2079 svm_msg_q_msg_t msg;
2080 svm_fifo_t *tx_fifo;
2085 if (PREDICT_FALSE (!buf || n == 0))
2086 return VPPCOM_EINVAL;
2088 if (PREDICT_FALSE (s->is_vep))
2090 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2091 " session!", s->session_index, s->vpp_handle);
2092 return VPPCOM_EBADFD;
2095 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2097 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2098 s->session_index, s->vpp_handle, s->session_state,
2099 vppcom_session_state_str (s->session_state));
2100 return vcl_session_closed_error (s);;
2103 is_ct = vcl_session_is_ct (s);
2104 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2105 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
2107 mq = wrk->app_event_queue;
2108 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2112 return VPPCOM_EWOULDBLOCK;
2114 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2116 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2117 if (vcl_session_is_closing (s))
2118 return vcl_session_closing_error (s);
2119 svm_msg_q_lock (mq);
2120 if (svm_msg_q_is_empty (mq))
2121 svm_msg_q_wait (mq);
2123 svm_msg_q_sub_w_lock (mq, &msg);
2124 e = svm_msg_q_msg_data (mq, &msg);
2125 svm_msg_q_unlock (mq);
2127 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
2128 vcl_handle_mq_event (wrk, e);
2129 svm_msg_q_free_msg (mq, &msg);
2133 et = SESSION_IO_EVT_TX;
2134 if (is_flush && !is_ct)
2135 et = SESSION_IO_EVT_TX_FLUSH;
2138 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2139 s->vpp_evt_q, buf, n, et,
2140 0 /* do_evt */ , SVM_Q_WAIT);
2142 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2143 0 /* do_evt */ , SVM_Q_WAIT);
2145 if (svm_fifo_set_event (s->tx_fifo))
2146 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
2149 ASSERT (n_write > 0);
2151 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2152 s->vpp_handle, n_write);
2158 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2160 vcl_worker_t *wrk = vcl_worker_get_current ();
2163 s = vcl_session_get_w_handle (wrk, session_handle);
2164 if (PREDICT_FALSE (!s))
2165 return VPPCOM_EBADFD;
2167 return vppcom_session_write_inline (wrk, s, buf, n,
2168 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2172 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2174 vcl_worker_t *wrk = vcl_worker_get_current ();
2177 s = vcl_session_get_w_handle (wrk, session_handle);
2178 if (PREDICT_FALSE (!s))
2179 return VPPCOM_EBADFD;
2181 return vppcom_session_write_inline (wrk, s, buf, n,
2182 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2185 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2186 if (PREDICT_FALSE (!_s->rx_fifo)) \
2188 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2190 if (!vcl_session_is_ct (_s)) \
2192 svm_fifo_unset_event (_s->rx_fifo); \
2193 if (svm_fifo_is_empty (_s->rx_fifo)) \
2196 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2198 svm_fifo_unset_event (_s->ct_rx_fifo); \
2199 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2205 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2206 unsigned long n_bits, unsigned long *read_map,
2207 unsigned long *write_map,
2208 unsigned long *except_map, u32 * bits_set)
2210 session_disconnected_msg_t *disconnected_msg;
2211 session_connected_msg_t *connected_msg;
2212 vcl_session_t *session;
2215 switch (e->event_type)
2217 case SESSION_IO_EVT_RX:
2218 sid = e->session_index;
2219 session = vcl_session_get (wrk, sid);
2220 if (!session || !vcl_session_is_open (session))
2222 vcl_fifo_rx_evt_valid_or_break (session);
2223 if (sid < n_bits && read_map)
2225 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2229 case SESSION_IO_EVT_TX:
2230 sid = e->session_index;
2231 session = vcl_session_get (wrk, sid);
2232 if (!session || !vcl_session_is_open (session))
2234 if (sid < n_bits && write_map)
2236 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2240 case SESSION_CTRL_EVT_ACCEPTED:
2241 session = vcl_session_accepted (wrk,
2242 (session_accepted_msg_t *) e->data);
2245 sid = session->session_index;
2246 if (sid < n_bits && read_map)
2248 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2252 case SESSION_CTRL_EVT_CONNECTED:
2253 connected_msg = (session_connected_msg_t *) e->data;
2254 sid = vcl_session_connected_handler (wrk, connected_msg);
2255 if (sid == VCL_INVALID_SESSION_INDEX)
2257 if (sid < n_bits && write_map)
2259 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2263 case SESSION_CTRL_EVT_DISCONNECTED:
2264 disconnected_msg = (session_disconnected_msg_t *) e->data;
2265 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2268 sid = session->session_index;
2269 if (sid < n_bits && except_map)
2271 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2275 case SESSION_CTRL_EVT_RESET:
2276 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2277 if (sid < n_bits && except_map)
2279 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2283 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2284 vcl_session_unlisten_reply_handler (wrk, e->data);
2286 case SESSION_CTRL_EVT_MIGRATED:
2287 vcl_session_migrated_handler (wrk, e->data);
2289 case SESSION_CTRL_EVT_CLEANUP:
2290 vcl_session_cleanup_handler (wrk, e->data);
2292 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2293 vcl_session_worker_update_reply_handler (wrk, e->data);
2295 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2296 vcl_session_req_worker_update_handler (wrk, e->data);
2298 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2299 vcl_session_app_add_segment_handler (wrk, e->data);
2301 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2302 vcl_session_app_del_segment_handler (wrk, e->data);
2304 case SESSION_CTRL_EVT_RPC:
2305 vcl_worker_rpc_handler (wrk, e->data);
2308 clib_warning ("unhandled: %u", e->event_type);
2314 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2315 unsigned long n_bits, unsigned long *read_map,
2316 unsigned long *write_map, unsigned long *except_map,
2317 double time_to_wait, u32 * bits_set)
2319 svm_msg_q_msg_t *msg;
2323 svm_msg_q_lock (mq);
2324 if (svm_msg_q_is_empty (mq))
2328 svm_msg_q_unlock (mq);
2334 svm_msg_q_unlock (mq);
2337 else if (time_to_wait < 0)
2339 svm_msg_q_wait (mq);
2343 if (svm_msg_q_timedwait (mq, time_to_wait))
2345 svm_msg_q_unlock (mq);
2350 vcl_mq_dequeue_batch (wrk, mq, ~0);
2351 svm_msg_q_unlock (mq);
2353 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2355 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2356 e = svm_msg_q_msg_data (mq, msg);
2357 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2358 except_map, bits_set);
2359 svm_msg_q_free_msg (mq, msg);
2361 vec_reset_length (wrk->mq_msg_vector);
2362 vcl_handle_pending_wrk_updates (wrk);
2367 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2368 vcl_si_set * read_map, vcl_si_set * write_map,
2369 vcl_si_set * except_map, double time_to_wait,
2372 double wait = 0, start = 0;
2376 wait = time_to_wait;
2377 start = clib_time_now (&wrk->clib_time);
2382 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2383 write_map, except_map, wait, bits_set);
2389 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2397 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2398 vcl_si_set * read_map, vcl_si_set * write_map,
2399 vcl_si_set * except_map, double time_to_wait,
2402 vcl_mq_evt_conn_t *mqc;
2403 int __clib_unused n_read;
2407 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2408 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2409 vec_len (wrk->mq_events), time_to_wait);
2410 for (i = 0; i < n_mq_evts; i++)
2412 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2413 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2414 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2415 except_map, 0, bits_set);
2418 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2422 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2423 vcl_si_set * except_map, double time_to_wait)
2425 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2426 vcl_worker_t *wrk = vcl_worker_get_current ();
2427 vcl_session_t *session = 0;
2430 if (n_bits && read_map)
2432 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2433 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2434 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2435 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2437 if (n_bits && write_map)
2439 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2440 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2441 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2442 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2444 if (n_bits && except_map)
2446 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2447 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2448 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2449 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2459 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2460 if (!(session = vcl_session_get (wrk, sid)))
2462 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2467 if (vcl_session_write_ready (session))
2469 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2473 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2480 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2481 if (!(session = vcl_session_get (wrk, sid)))
2483 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2488 if (vcl_session_read_ready (session))
2490 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2498 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2500 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2501 read_map, write_map, except_map, &bits_set);
2503 vec_reset_length (wrk->unhandled_evts_vector);
2505 if (vcm->cfg.use_mq_eventfd)
2506 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2507 time_to_wait, &bits_set);
2509 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2510 time_to_wait, &bits_set);
2516 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2518 vcl_session_t *session;
2519 vppcom_epoll_t *vep;
2520 u32 sh = vep_handle;
2522 if (VPPCOM_DEBUG <= 2)
2525 session = vcl_session_get_w_handle (wrk, vep_handle);
2526 if (PREDICT_FALSE (!session))
2528 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2531 if (PREDICT_FALSE (!session->is_vep))
2533 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2536 vep = &session->vep;
2537 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2540 " is_vep_session = %u\n"
2541 " next_sh = 0x%x (%u)\n"
2542 "}\n", vep_handle, session->is_vep, session->is_vep_session,
2543 vep->next_sh, vep->next_sh);
2545 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2547 session = vcl_session_get_w_handle (wrk, sh);
2548 if (PREDICT_FALSE (!session))
2550 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2553 if (PREDICT_FALSE (session->is_vep))
2555 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2557 else if (PREDICT_FALSE (!session->is_vep_session))
2559 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2562 vep = &session->vep;
2563 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2564 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2565 sh, session->vep.vep_sh, vep_handle);
2566 if (session->is_vep_session)
2568 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2570 " next_sh = 0x%x (%u)\n"
2571 " prev_sh = 0x%x (%u)\n"
2572 " vep_sh = 0x%x (%u)\n"
2573 " ev.events = 0x%x\n"
2574 " ev.data.u64 = 0x%llx\n"
2577 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2578 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2579 vep->ev.data.u64, vep->et_mask);
2584 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2588 vppcom_epoll_create (void)
2590 vcl_worker_t *wrk = vcl_worker_get_current ();
2591 vcl_session_t *vep_session;
2593 vep_session = vcl_session_alloc (wrk);
2595 vep_session->is_vep = 1;
2596 vep_session->vep.vep_sh = ~0;
2597 vep_session->vep.next_sh = ~0;
2598 vep_session->vep.prev_sh = ~0;
2599 vep_session->vpp_handle = ~0;
2601 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2602 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2604 return vcl_session_handle (vep_session);
2608 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2609 struct epoll_event *event)
2611 vcl_worker_t *wrk = vcl_worker_get_current ();
2612 vcl_session_t *vep_session;
2613 vcl_session_t *session;
2616 if (vep_handle == session_handle)
2618 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2619 return VPPCOM_EINVAL;
2622 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2623 if (PREDICT_FALSE (!vep_session))
2625 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2626 return VPPCOM_EBADFD;
2628 if (PREDICT_FALSE (!vep_session->is_vep))
2630 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2631 return VPPCOM_EINVAL;
2634 ASSERT (vep_session->vep.vep_sh == ~0);
2635 ASSERT (vep_session->vep.prev_sh == ~0);
2637 session = vcl_session_get_w_handle (wrk, session_handle);
2638 if (PREDICT_FALSE (!session))
2640 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2641 return VPPCOM_EBADFD;
2643 if (PREDICT_FALSE (session->is_vep))
2645 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2646 return VPPCOM_EINVAL;
2652 if (PREDICT_FALSE (!event))
2654 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2655 return VPPCOM_EINVAL;
2657 if (vep_session->vep.next_sh != ~0)
2659 vcl_session_t *next_session;
2660 next_session = vcl_session_get_w_handle (wrk,
2661 vep_session->vep.next_sh);
2662 if (PREDICT_FALSE (!next_session))
2664 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2665 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2666 return VPPCOM_EBADFD;
2668 ASSERT (next_session->vep.prev_sh == vep_handle);
2669 next_session->vep.prev_sh = session_handle;
2671 session->vep.next_sh = vep_session->vep.next_sh;
2672 session->vep.prev_sh = vep_handle;
2673 session->vep.vep_sh = vep_handle;
2674 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2675 session->vep.ev = *event;
2676 session->is_vep = 0;
2677 session->is_vep_session = 1;
2678 vep_session->vep.next_sh = session_handle;
2680 if (session->tx_fifo)
2681 svm_fifo_add_want_deq_ntf (session->tx_fifo,
2682 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2684 /* Generate EPOLLOUT if tx fifo not full */
2685 if ((event->events & EPOLLOUT) &&
2686 (vcl_session_write_ready (session) > 0))
2688 session_event_t e = { 0 };
2689 e.event_type = SESSION_IO_EVT_TX;
2690 e.session_index = session->session_index;
2691 vec_add1 (wrk->unhandled_evts_vector, e);
2693 /* Generate EPOLLIN if rx fifo has data */
2694 if ((event->events & EPOLLIN) && (vcl_session_read_ready (session) > 0))
2696 session_event_t e = { 0 };
2697 e.event_type = SESSION_IO_EVT_RX;
2698 e.session_index = session->session_index;
2699 vec_add1 (wrk->unhandled_evts_vector, e);
2701 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2702 vep_handle, session_handle, event->events, event->data.u64);
2703 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2707 if (PREDICT_FALSE (!event))
2709 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2713 else if (PREDICT_FALSE (!session->is_vep_session))
2715 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2719 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2721 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2722 session_handle, session->vep.vep_sh, vep_handle);
2727 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2728 if ((event->events & EPOLLOUT) &&
2729 !(session->vep.ev.events & EPOLLOUT) &&
2730 (vcl_session_write_ready (session) > 0))
2732 session_event_t e = { 0 };
2733 e.event_type = SESSION_IO_EVT_TX;
2734 e.session_index = session->session_index;
2735 vec_add1 (wrk->unhandled_evts_vector, e);
2737 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2738 session->vep.ev = *event;
2739 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2740 vep_handle, session_handle, event->events, event->data.u64);
2744 if (PREDICT_FALSE (!session->is_vep_session))
2746 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2750 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2752 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2753 session_handle, session->vep.vep_sh, vep_handle);
2758 if (session->vep.prev_sh == vep_handle)
2759 vep_session->vep.next_sh = session->vep.next_sh;
2762 vcl_session_t *prev_session;
2763 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2764 if (PREDICT_FALSE (!prev_session))
2766 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2767 session->vep.prev_sh, session_handle);
2768 return VPPCOM_EBADFD;
2770 ASSERT (prev_session->vep.next_sh == session_handle);
2771 prev_session->vep.next_sh = session->vep.next_sh;
2773 if (session->vep.next_sh != ~0)
2775 vcl_session_t *next_session;
2776 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2777 if (PREDICT_FALSE (!next_session))
2779 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2780 session->vep.next_sh, session_handle);
2781 return VPPCOM_EBADFD;
2783 ASSERT (next_session->vep.prev_sh == session_handle);
2784 next_session->vep.prev_sh = session->vep.prev_sh;
2787 memset (&session->vep, 0, sizeof (session->vep));
2788 session->vep.next_sh = ~0;
2789 session->vep.prev_sh = ~0;
2790 session->vep.vep_sh = ~0;
2791 session->is_vep_session = 0;
2793 if (session->tx_fifo)
2794 svm_fifo_del_want_deq_ntf (session->tx_fifo, SVM_FIFO_NO_DEQ_NOTIF);
2796 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2798 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2802 VDBG (0, "Invalid operation (%d)!", op);
2806 vep_verify_epoll_chain (wrk, vep_handle);
2813 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2814 struct epoll_event *events, u32 * num_ev)
2816 session_disconnected_msg_t *disconnected_msg;
2817 session_connected_msg_t *connected_msg;
2818 u32 sid = ~0, session_events;
2819 u64 session_evt_data = ~0;
2820 vcl_session_t *session;
2823 switch (e->event_type)
2825 case SESSION_IO_EVT_RX:
2826 sid = e->session_index;
2827 session = vcl_session_get (wrk, sid);
2828 if (vcl_session_is_closed (session))
2830 vcl_fifo_rx_evt_valid_or_break (session);
2831 session_events = session->vep.ev.events;
2832 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2835 events[*num_ev].events |= EPOLLIN;
2836 session_evt_data = session->vep.ev.data.u64;
2837 session->has_rx_evt = 1;
2839 case SESSION_IO_EVT_TX:
2840 sid = e->session_index;
2841 session = vcl_session_get (wrk, sid);
2842 if (vcl_session_is_closed (session))
2844 session_events = session->vep.ev.events;
2845 if (!(EPOLLOUT & session_events))
2848 events[*num_ev].events |= EPOLLOUT;
2849 session_evt_data = session->vep.ev.data.u64;
2850 svm_fifo_reset_has_deq_ntf (session->tx_fifo);
2852 case SESSION_CTRL_EVT_ACCEPTED:
2853 session = vcl_session_accepted (wrk,
2854 (session_accepted_msg_t *) e->data);
2858 session_events = session->vep.ev.events;
2859 if (!(EPOLLIN & session_events))
2863 events[*num_ev].events |= EPOLLIN;
2864 session_evt_data = session->vep.ev.data.u64;
2866 case SESSION_CTRL_EVT_CONNECTED:
2867 connected_msg = (session_connected_msg_t *) e->data;
2868 sid = vcl_session_connected_handler (wrk, connected_msg);
2869 /* Generate EPOLLOUT because there's no connected event */
2870 session = vcl_session_get (wrk, sid);
2871 if (vcl_session_is_closed (session))
2873 session_events = session->vep.ev.events;
2874 if (!(EPOLLOUT & session_events))
2877 events[*num_ev].events |= EPOLLOUT;
2878 session_evt_data = session->vep.ev.data.u64;
2879 if (session->session_state & STATE_DETACHED)
2880 events[*num_ev].events |= EPOLLHUP;
2882 case SESSION_CTRL_EVT_DISCONNECTED:
2883 disconnected_msg = (session_disconnected_msg_t *) e->data;
2884 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2885 if (vcl_session_is_closed (session))
2887 session_events = session->vep.ev.events;
2889 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2890 session_evt_data = session->vep.ev.data.u64;
2892 case SESSION_CTRL_EVT_RESET:
2893 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2894 session = vcl_session_get (wrk, sid);
2895 if (vcl_session_is_closed (session))
2897 session_events = session->vep.ev.events;
2899 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2900 session_evt_data = session->vep.ev.data.u64;
2902 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2903 vcl_session_unlisten_reply_handler (wrk, e->data);
2905 case SESSION_CTRL_EVT_MIGRATED:
2906 vcl_session_migrated_handler (wrk, e->data);
2908 case SESSION_CTRL_EVT_CLEANUP:
2909 vcl_session_cleanup_handler (wrk, e->data);
2911 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2912 vcl_session_req_worker_update_handler (wrk, e->data);
2914 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2915 vcl_session_worker_update_reply_handler (wrk, e->data);
2917 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2918 vcl_session_app_add_segment_handler (wrk, e->data);
2920 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2921 vcl_session_app_del_segment_handler (wrk, e->data);
2923 case SESSION_CTRL_EVT_RPC:
2924 vcl_worker_rpc_handler (wrk, e->data);
2927 VDBG (0, "unhandled: %u", e->event_type);
2933 events[*num_ev].data.u64 = session_evt_data;
2934 if (EPOLLONESHOT & session_events)
2936 session = vcl_session_get (wrk, sid);
2937 session->vep.ev.events = 0;
2944 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2945 struct epoll_event *events, u32 maxevents,
2946 double wait_for_time, u32 * num_ev)
2948 svm_msg_q_msg_t *msg;
2952 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2953 goto handle_dequeued;
2955 svm_msg_q_lock (mq);
2956 if (svm_msg_q_is_empty (mq))
2960 svm_msg_q_unlock (mq);
2963 else if (wait_for_time < 0)
2965 svm_msg_q_wait (mq);
2969 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2971 svm_msg_q_unlock (mq);
2976 ASSERT (maxevents > *num_ev);
2977 vcl_mq_dequeue_batch (wrk, mq, ~0);
2978 svm_msg_q_unlock (mq);
2981 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2983 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2984 e = svm_msg_q_msg_data (mq, msg);
2985 if (*num_ev < maxevents)
2986 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2988 vcl_handle_mq_event (wrk, e);
2989 svm_msg_q_free_msg (mq, msg);
2991 vec_reset_length (wrk->mq_msg_vector);
2992 vcl_handle_pending_wrk_updates (wrk);
2997 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2998 int maxevents, u32 n_evts, double wait_for_time)
3000 double wait = 0, start = 0, now;
3004 wait = wait_for_time;
3005 start = clib_time_now (&wrk->clib_time);
3010 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
3017 now = clib_time_now (&wrk->clib_time);
3018 wait -= (now - start) * 1e3;
3027 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
3028 int maxevents, u32 n_evts, double wait_for_time)
3030 vcl_mq_evt_conn_t *mqc;
3031 int __clib_unused n_read;
3035 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
3037 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
3038 vec_len (wrk->mq_events), wait_for_time);
3039 for (i = 0; i < n_mq_evts; i++)
3041 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
3042 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
3043 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
3045 if (!n_evts && n_mq_evts > 0)
3048 return (int) n_evts;
3052 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3053 int maxevents, double wait_for_time)
3055 vcl_worker_t *wrk = vcl_worker_get_current ();
3056 vcl_session_t *vep_session;
3060 if (PREDICT_FALSE (maxevents <= 0))
3062 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3063 return VPPCOM_EINVAL;
3066 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3068 return VPPCOM_EBADFD;
3070 if (PREDICT_FALSE (!vep_session->is_vep))
3072 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3073 return VPPCOM_EINVAL;
3076 memset (events, 0, sizeof (*events) * maxevents);
3078 if (vec_len (wrk->unhandled_evts_vector))
3080 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3082 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3084 if (n_evts == maxevents)
3086 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3090 vec_reset_length (wrk->unhandled_evts_vector);
3093 if (vcm->cfg.use_mq_eventfd)
3094 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3097 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3102 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3103 void *buffer, uint32_t * buflen)
3105 vcl_worker_t *wrk = vcl_worker_get_current ();
3106 vcl_session_t *session;
3108 u32 *flags = buffer, tmp_flags = 0;
3109 vppcom_endpt_t *ep = buffer;
3111 session = vcl_session_get_w_handle (wrk, session_handle);
3113 return VPPCOM_EBADFD;
3117 case VPPCOM_ATTR_GET_NREAD:
3118 rv = vcl_session_read_ready (session);
3119 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3123 case VPPCOM_ATTR_GET_NWRITE:
3124 rv = vcl_session_write_ready (session);
3125 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3129 case VPPCOM_ATTR_GET_FLAGS:
3130 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3134 (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK) ?
3136 *buflen = sizeof (*flags);
3137 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3138 "is_nonblocking = %u", session_handle, *flags,
3139 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3145 case VPPCOM_ATTR_SET_FLAGS:
3146 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3148 if (*flags & O_NONBLOCK)
3149 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
3151 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
3153 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3154 " is_nonblocking = %u", session_handle, *flags,
3155 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3161 case VPPCOM_ATTR_GET_PEER_ADDR:
3162 if (PREDICT_TRUE (buffer && buflen &&
3163 (*buflen >= sizeof (*ep)) && ep->ip))
3165 ep->is_ip4 = session->transport.is_ip4;
3166 ep->port = session->transport.rmt_port;
3167 if (session->transport.is_ip4)
3168 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3169 sizeof (ip4_address_t));
3171 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3172 sizeof (ip6_address_t));
3173 *buflen = sizeof (*ep);
3174 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3175 "addr = %U, port %u", session_handle, ep->is_ip4,
3176 format_ip46_address, &session->transport.rmt_ip,
3177 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3178 clib_net_to_host_u16 (ep->port));
3184 case VPPCOM_ATTR_GET_LCL_ADDR:
3185 if (PREDICT_TRUE (buffer && buflen &&
3186 (*buflen >= sizeof (*ep)) && ep->ip))
3188 ep->is_ip4 = session->transport.is_ip4;
3189 ep->port = session->transport.lcl_port;
3190 if (session->transport.is_ip4)
3191 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3192 sizeof (ip4_address_t));
3194 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3195 sizeof (ip6_address_t));
3196 *buflen = sizeof (*ep);
3197 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3198 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3199 &session->transport.lcl_ip,
3200 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3201 clib_net_to_host_u16 (ep->port));
3207 case VPPCOM_ATTR_SET_LCL_ADDR:
3208 if (PREDICT_TRUE (buffer && buflen &&
3209 (*buflen >= sizeof (*ep)) && ep->ip))
3211 session->transport.is_ip4 = ep->is_ip4;
3212 session->transport.lcl_port = ep->port;
3213 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3214 *buflen = sizeof (*ep);
3215 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3216 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3217 &session->transport.lcl_ip,
3218 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3219 clib_net_to_host_u16 (ep->port));
3225 case VPPCOM_ATTR_GET_LIBC_EPFD:
3226 rv = session->libc_epfd;
3227 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3230 case VPPCOM_ATTR_SET_LIBC_EPFD:
3231 if (PREDICT_TRUE (buffer && buflen &&
3232 (*buflen == sizeof (session->libc_epfd))))
3234 session->libc_epfd = *(int *) buffer;
3235 *buflen = sizeof (session->libc_epfd);
3237 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3238 session->libc_epfd, *buflen);
3244 case VPPCOM_ATTR_GET_PROTOCOL:
3245 if (buffer && buflen && (*buflen >= sizeof (int)))
3247 *(int *) buffer = session->session_type;
3248 *buflen = sizeof (int);
3250 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3251 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3257 case VPPCOM_ATTR_GET_LISTEN:
3258 if (buffer && buflen && (*buflen >= sizeof (int)))
3260 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3261 VCL_SESS_ATTR_LISTEN);
3262 *buflen = sizeof (int);
3264 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3271 case VPPCOM_ATTR_GET_ERROR:
3272 if (buffer && buflen && (*buflen >= sizeof (int)))
3274 *(int *) buffer = 0;
3275 *buflen = sizeof (int);
3277 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3278 *(int *) buffer, *buflen);
3284 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3285 if (buffer && buflen && (*buflen >= sizeof (u32)))
3289 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3291 svm_fifo_size (session->tx_fifo) :
3292 vcm->cfg.tx_fifo_size);
3293 *buflen = sizeof (u32);
3295 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3296 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3303 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3304 if (buffer && buflen && (*buflen == sizeof (u32)))
3307 session->sndbuf_size = *(u32 *) buffer;
3308 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3309 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3316 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3317 if (buffer && buflen && (*buflen >= sizeof (u32)))
3321 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3323 svm_fifo_size (session->rx_fifo) :
3324 vcm->cfg.rx_fifo_size);
3325 *buflen = sizeof (u32);
3327 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3328 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3334 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3335 if (buffer && buflen && (*buflen == sizeof (u32)))
3338 session->rcvbuf_size = *(u32 *) buffer;
3339 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3340 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3347 case VPPCOM_ATTR_GET_REUSEADDR:
3348 if (buffer && buflen && (*buflen >= sizeof (int)))
3351 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3352 VCL_SESS_ATTR_REUSEADDR);
3353 *buflen = sizeof (int);
3355 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3356 *(int *) buffer, *buflen);
3362 case VPPCOM_ATTR_SET_REUSEADDR:
3363 if (buffer && buflen && (*buflen == sizeof (int)) &&
3364 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3367 if (*(int *) buffer)
3368 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
3370 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
3372 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3373 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEADDR),
3380 case VPPCOM_ATTR_GET_REUSEPORT:
3381 if (buffer && buflen && (*buflen >= sizeof (int)))
3384 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3385 VCL_SESS_ATTR_REUSEPORT);
3386 *buflen = sizeof (int);
3388 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3389 *(int *) buffer, *buflen);
3395 case VPPCOM_ATTR_SET_REUSEPORT:
3396 if (buffer && buflen && (*buflen == sizeof (int)) &&
3397 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3400 if (*(int *) buffer)
3401 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
3403 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
3405 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3406 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEPORT),
3413 case VPPCOM_ATTR_GET_BROADCAST:
3414 if (buffer && buflen && (*buflen >= sizeof (int)))
3417 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3418 VCL_SESS_ATTR_BROADCAST);
3419 *buflen = sizeof (int);
3421 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3422 *(int *) buffer, *buflen);
3428 case VPPCOM_ATTR_SET_BROADCAST:
3429 if (buffer && buflen && (*buflen == sizeof (int)))
3432 if (*(int *) buffer)
3433 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
3435 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
3437 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3438 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_BROADCAST),
3445 case VPPCOM_ATTR_GET_V6ONLY:
3446 if (buffer && buflen && (*buflen >= sizeof (int)))
3449 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3450 VCL_SESS_ATTR_V6ONLY);
3451 *buflen = sizeof (int);
3453 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3454 *(int *) buffer, *buflen);
3460 case VPPCOM_ATTR_SET_V6ONLY:
3461 if (buffer && buflen && (*buflen == sizeof (int)))
3464 if (*(int *) buffer)
3465 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
3467 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
3469 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3470 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_V6ONLY),
3477 case VPPCOM_ATTR_GET_KEEPALIVE:
3478 if (buffer && buflen && (*buflen >= sizeof (int)))
3481 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3482 VCL_SESS_ATTR_KEEPALIVE);
3483 *buflen = sizeof (int);
3485 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3486 *(int *) buffer, *buflen);
3492 case VPPCOM_ATTR_SET_KEEPALIVE:
3493 if (buffer && buflen && (*buflen == sizeof (int)))
3496 if (*(int *) buffer)
3497 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3499 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3501 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3502 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_KEEPALIVE),
3509 case VPPCOM_ATTR_GET_TCP_NODELAY:
3510 if (buffer && buflen && (*buflen >= sizeof (int)))
3513 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3514 VCL_SESS_ATTR_TCP_NODELAY);
3515 *buflen = sizeof (int);
3517 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3518 *(int *) buffer, *buflen);
3524 case VPPCOM_ATTR_SET_TCP_NODELAY:
3525 if (buffer && buflen && (*buflen == sizeof (int)))
3528 if (*(int *) buffer)
3529 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3531 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3533 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3534 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_NODELAY),
3541 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3542 if (buffer && buflen && (*buflen >= sizeof (int)))
3545 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3546 VCL_SESS_ATTR_TCP_KEEPIDLE);
3547 *buflen = sizeof (int);
3549 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3550 *(int *) buffer, *buflen);
3556 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3557 if (buffer && buflen && (*buflen == sizeof (int)))
3560 if (*(int *) buffer)
3561 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3563 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3565 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3566 VCL_SESS_ATTR_TEST (session->attr,
3567 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3573 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3574 if (buffer && buflen && (*buflen >= sizeof (int)))
3577 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3578 VCL_SESS_ATTR_TCP_KEEPINTVL);
3579 *buflen = sizeof (int);
3581 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3582 *(int *) buffer, *buflen);
3588 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3589 if (buffer && buflen && (*buflen == sizeof (int)))
3592 if (*(int *) buffer)
3593 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3595 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3597 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3598 VCL_SESS_ATTR_TEST (session->attr,
3599 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3605 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3606 if (buffer && buflen && (*buflen >= sizeof (u32)))
3609 *(u32 *) buffer = session->user_mss;
3610 *buflen = sizeof (int);
3612 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3613 *(int *) buffer, *buflen);
3619 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3620 if (buffer && buflen && (*buflen == sizeof (u32)))
3623 session->user_mss = *(u32 *) buffer;
3625 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3626 session->user_mss, *buflen);
3632 case VPPCOM_ATTR_SET_SHUT:
3633 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3634 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3635 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3636 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3639 case VPPCOM_ATTR_GET_SHUT:
3640 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3642 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3645 *(int *) buffer = SHUT_RD;
3646 else if (tmp_flags == 2)
3647 *(int *) buffer = SHUT_WR;
3648 else if (tmp_flags == 3)
3649 *(int *) buffer = SHUT_RDWR;
3650 *buflen = sizeof (int);
3653 case VPPCOM_ATTR_SET_CONNECTED:
3654 session->flags |= VCL_SESSION_F_CONNECTED;
3666 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3667 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3669 vcl_worker_t *wrk = vcl_worker_get_current ();
3670 vcl_session_t *session;
3674 rv = vppcom_session_read (session_handle, buffer, buflen);
3675 else if (flags & MSG_PEEK)
3676 rv = vppcom_session_peek (session_handle, buffer, buflen);
3679 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3680 return VPPCOM_EAFNOSUPPORT;
3685 session = vcl_session_get_w_handle (wrk, session_handle);
3686 if (session->transport.is_ip4)
3687 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3688 sizeof (ip4_address_t));
3690 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3691 sizeof (ip6_address_t));
3692 ep->is_ip4 = session->transport.is_ip4;
3693 ep->port = session->transport.rmt_port;
3700 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3701 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3703 vcl_worker_t *wrk = vcl_worker_get_current ();
3706 s = vcl_session_get_w_handle (wrk, session_handle);
3708 return VPPCOM_EBADFD;
3711 return VPPCOM_EINVAL;
3715 if (s->session_type != VPPCOM_PROTO_UDP
3716 || (s->flags & VCL_SESSION_F_CONNECTED))
3717 return VPPCOM_EINVAL;
3719 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3720 if (PREDICT_FALSE (s->session_state == STATE_CLOSED))
3722 vcl_send_session_connect (wrk, s);
3726 s->transport.is_ip4 = ep->is_ip4;
3727 s->transport.rmt_port = ep->port;
3728 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3734 // TBD check the flags and do the right thing
3735 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3738 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3739 s->is_dgram ? 1 : 0));
3743 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3745 vcl_worker_t *wrk = vcl_worker_get_current ();
3746 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3747 u32 i, keep_trying = 1;
3748 svm_msg_q_msg_t msg;
3752 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3755 return VPPCOM_EFAULT;
3759 vcl_session_t *session;
3761 /* Dequeue all events and drop all unhandled io events */
3762 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3764 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3765 vcl_handle_mq_event (wrk, e);
3766 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3768 vec_reset_length (wrk->unhandled_evts_vector);
3770 for (i = 0; i < n_sids; i++)
3772 session = vcl_session_get (wrk, vp[i].sh);
3775 vp[i].revents = POLLHUP;
3782 if (POLLIN & vp[i].events)
3784 rv = vcl_session_read_ready (session);
3787 vp[i].revents |= POLLIN;
3794 case VPPCOM_ECONNRESET:
3795 vp[i].revents = POLLHUP;
3799 vp[i].revents = POLLERR;
3806 if (POLLOUT & vp[i].events)
3808 rv = vcl_session_write_ready (session);
3811 vp[i].revents |= POLLOUT;
3818 case VPPCOM_ECONNRESET:
3819 vp[i].revents = POLLHUP;
3823 vp[i].revents = POLLERR;
3830 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3832 vp[i].revents = POLLNVAL;
3836 if (wait_for_time != -1)
3837 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3839 while ((num_ev == 0) && keep_trying);
3845 vppcom_mq_epoll_fd (void)
3847 vcl_worker_t *wrk = vcl_worker_get_current ();
3848 return wrk->mqs_epfd;
3852 vppcom_session_index (vcl_session_handle_t session_handle)
3854 return session_handle & 0xFFFFFF;
3858 vppcom_session_worker (vcl_session_handle_t session_handle)
3860 return session_handle >> 24;
3864 vppcom_worker_register (void)
3870 if (!vcl_worker_alloc_and_init ())
3871 return VPPCOM_EEXIST;
3873 wrk = vcl_worker_get_current ();
3874 wrk_name = format (0, "%s-wrk-%u", vcm->app_name, wrk->wrk_index);
3876 rv = vppcom_connect_to_vpp ((char *) wrk_name);
3877 vec_free (wrk_name);
3880 return VPPCOM_EFAULT;
3882 if (vcl_worker_register_with_vpp ())
3883 return VPPCOM_EEXIST;
3889 vppcom_worker_unregister (void)
3891 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3892 vcl_set_worker_index (~0);
3896 vppcom_worker_index_set (int index)
3898 vcl_set_worker_index (index);
3902 vppcom_worker_index (void)
3904 return vcl_get_worker_index ();
3908 vppcom_worker_mqs_epfd (void)
3910 vcl_worker_t *wrk = vcl_worker_get_current ();
3911 if (!vcm->cfg.use_mq_eventfd)
3913 return wrk->mqs_epfd;
3917 vppcom_session_is_connectable_listener (uint32_t session_handle)
3919 vcl_session_t *session;
3920 vcl_worker_t *wrk = vcl_worker_get_current ();
3921 session = vcl_session_get_w_handle (wrk, session_handle);
3923 return VPPCOM_EBADFD;
3924 return vcl_session_is_connectable_listener (wrk, session);
3928 vppcom_session_listener (uint32_t session_handle)
3930 vcl_worker_t *wrk = vcl_worker_get_current ();
3931 vcl_session_t *listen_session, *session;
3932 session = vcl_session_get_w_handle (wrk, session_handle);
3934 return VPPCOM_EBADFD;
3935 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3936 return VPPCOM_EBADFD;
3937 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3938 if (!listen_session)
3939 return VPPCOM_EBADFD;
3940 return vcl_session_handle (listen_session);
3944 vppcom_session_n_accepted (uint32_t session_handle)
3946 vcl_worker_t *wrk = vcl_worker_get_current ();
3947 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3949 return VPPCOM_EBADFD;
3950 return session->n_accepted_sessions;
3954 vppcom_proto_str (vppcom_proto_t proto)
3956 char const *proto_str;
3960 case VPPCOM_PROTO_TCP:
3963 case VPPCOM_PROTO_UDP:
3966 case VPPCOM_PROTO_TLS:
3969 case VPPCOM_PROTO_QUIC:
3973 proto_str = "UNKNOWN";
3980 vppcom_retval_str (int retval)
3991 st = "VPPCOM_EAGAIN";
3995 st = "VPPCOM_EFAULT";
3999 st = "VPPCOM_ENOMEM";
4003 st = "VPPCOM_EINVAL";
4007 st = "VPPCOM_EBADFD";
4010 case VPPCOM_EAFNOSUPPORT:
4011 st = "VPPCOM_EAFNOSUPPORT";
4014 case VPPCOM_ECONNABORTED:
4015 st = "VPPCOM_ECONNABORTED";
4018 case VPPCOM_ECONNRESET:
4019 st = "VPPCOM_ECONNRESET";
4022 case VPPCOM_ENOTCONN:
4023 st = "VPPCOM_ENOTCONN";
4026 case VPPCOM_ECONNREFUSED:
4027 st = "VPPCOM_ECONNREFUSED";
4030 case VPPCOM_ETIMEDOUT:
4031 st = "VPPCOM_ETIMEDOUT";
4035 st = "UNKNOWN_STATE";
4043 * fd.io coding-style-patch-verification: ON
4046 * eval: (c-set-style "gnu")