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;
363 if (data_len > sizeof (mp->data))
366 clib_spinlock_lock (&vcm->workers_lock);
368 dst_wrk = vcl_worker_get_if_valid (dst_wrk_index);
372 wrk = vcl_worker_get_current ();
373 mq = vcl_worker_ctrl_mq (wrk);
374 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_WRK_RPC);
375 mp = (session_app_wrk_rpc_msg_t *) app_evt->evt->data;
376 mp->client_index = wrk->my_client_index;
377 mp->wrk_index = dst_wrk->vpp_wrk_index;
378 clib_memcpy (mp->data, data, data_len);
379 app_send_ctrl_evt_to_vpp (mq, app_evt);
383 clib_spinlock_unlock (&vcm->workers_lock);
388 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp,
391 vcl_session_t *session, *listen_session;
392 svm_fifo_t *rx_fifo, *tx_fifo;
396 session = vcl_session_alloc (wrk);
398 listen_session = vcl_session_get (wrk, ls_index);
399 if (listen_session->vpp_handle != mp->listener_handle)
401 VDBG (0, "ERROR: listener handle %lu does not match session %u",
402 mp->listener_handle, ls_index);
406 if (vcl_segment_is_not_mounted (wrk, mp->segment_handle))
408 VDBG (0, "ERROR: segment for session %u is not mounted!",
409 session->session_index);
413 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
414 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
415 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
417 rx_fifo->client_session_index = session->session_index;
418 tx_fifo->client_session_index = session->session_index;
419 rx_fifo->client_thread_index = vcl_get_worker_index ();
420 tx_fifo->client_thread_index = vcl_get_worker_index ();
421 vpp_wrk_index = tx_fifo->master_thread_index;
422 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
423 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
425 session->vpp_handle = mp->handle;
426 session->vpp_thread_index = rx_fifo->master_thread_index;
427 session->rx_fifo = rx_fifo;
428 session->tx_fifo = tx_fifo;
430 session->session_state = STATE_ACCEPT;
431 session->transport.rmt_port = mp->rmt.port;
432 session->transport.is_ip4 = mp->rmt.is_ip4;
433 clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
434 sizeof (ip46_address_t));
436 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
437 session->transport.lcl_port = listen_session->transport.lcl_port;
438 session->transport.lcl_ip = listen_session->transport.lcl_ip;
439 session->session_type = listen_session->session_type;
440 session->is_dgram = vcl_proto_is_dgram (session->session_type);
441 session->listener_index = listen_session->session_index;
442 listen_session->n_accepted_sessions++;
444 VDBG (1, "session %u [0x%llx]: client accept request from %s address %U"
445 " port %d queue %p!", session->session_index, mp->handle,
446 mp->rmt.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->rmt.ip,
447 mp->rmt.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
448 clib_net_to_host_u16 (mp->rmt.port), session->vpp_evt_q);
449 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
451 vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context,
452 session->vpp_handle, 0);
454 return session->session_index;
457 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
458 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
459 VNET_API_ERROR_INVALID_ARGUMENT);
460 vcl_session_free (wrk, session);
461 return VCL_INVALID_SESSION_INDEX;
465 vcl_session_connected_handler (vcl_worker_t * wrk,
466 session_connected_msg_t * mp)
468 u32 session_index, vpp_wrk_index;
469 svm_fifo_t *rx_fifo, *tx_fifo;
470 vcl_session_t *session = 0;
472 session_index = mp->context;
473 session = vcl_session_get (wrk, session_index);
476 VDBG (0, "ERROR: vpp handle 0x%llx has no session index (%u)!",
477 mp->handle, session_index);
478 return VCL_INVALID_SESSION_INDEX;
482 VDBG (0, "ERROR: session index %u: connect failed! %U",
483 session_index, format_session_error, mp->retval);
484 session->session_state = STATE_DETACHED | STATE_DISCONNECT;
485 session->vpp_handle = mp->handle;
486 return session_index;
489 session->vpp_handle = mp->handle;
490 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
492 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
493 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
494 if (vcl_segment_is_not_mounted (wrk, mp->segment_handle))
496 VDBG (0, "segment for session %u is not mounted!",
497 session->session_index);
498 session->session_state = STATE_DETACHED | STATE_DISCONNECT;
499 vcl_send_session_disconnect (wrk, session);
500 return session_index;
503 rx_fifo->client_session_index = session_index;
504 tx_fifo->client_session_index = session_index;
505 rx_fifo->client_thread_index = vcl_get_worker_index ();
506 tx_fifo->client_thread_index = vcl_get_worker_index ();
508 vpp_wrk_index = tx_fifo->master_thread_index;
509 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
510 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
514 session->ct_rx_fifo = uword_to_pointer (mp->ct_rx_fifo, svm_fifo_t *);
515 session->ct_tx_fifo = uword_to_pointer (mp->ct_tx_fifo, svm_fifo_t *);
516 if (vcl_segment_is_not_mounted (wrk, mp->ct_segment_handle))
518 VDBG (0, "ct segment for session %u is not mounted!",
519 session->session_index);
520 session->session_state = STATE_DETACHED | STATE_DISCONNECT;
521 vcl_send_session_disconnect (wrk, session);
522 return session_index;
526 session->rx_fifo = rx_fifo;
527 session->tx_fifo = tx_fifo;
528 session->vpp_thread_index = rx_fifo->master_thread_index;
529 session->transport.is_ip4 = mp->lcl.is_ip4;
530 clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
531 sizeof (session->transport.lcl_ip));
532 session->transport.lcl_port = mp->lcl.port;
533 session->session_state = STATE_CONNECT;
535 /* Add it to lookup table */
536 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
538 VDBG (1, "session %u [0x%llx] connected! rx_fifo %p, refcnt %d, tx_fifo %p,"
539 " refcnt %d", session_index, mp->handle, session->rx_fifo,
540 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
542 return session_index;
546 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
548 vcl_session_msg_t *accepted_msg;
551 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
553 accepted_msg = &session->accept_evts_fifo[i];
554 if (accepted_msg->accepted_msg.handle == handle)
556 accepted_msg->flags |= flags;
564 vcl_session_reset_handler (vcl_worker_t * wrk,
565 session_reset_msg_t * reset_msg)
567 vcl_session_t *session;
570 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
571 session = vcl_session_get (wrk, sid);
574 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
575 return VCL_INVALID_SESSION_INDEX;
578 /* Caught a reset before actually accepting the session */
579 if (session->session_state == STATE_LISTEN)
582 if (!vcl_flag_accepted_session (session, reset_msg->handle,
583 VCL_ACCEPTED_F_RESET))
584 VDBG (0, "session was not accepted!");
585 return VCL_INVALID_SESSION_INDEX;
588 if (session->session_state != STATE_CLOSED)
589 session->session_state = STATE_DISCONNECT;
590 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
595 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
597 vcl_session_t *session;
598 u32 sid = mp->context;
600 session = vcl_session_get (wrk, sid);
603 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
604 format_session_error, mp->retval);
607 session->session_state = STATE_DETACHED;
608 session->vpp_handle = mp->handle;
613 VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!",
615 return VCL_INVALID_SESSION_INDEX;
619 session->vpp_handle = mp->handle;
620 session->transport.is_ip4 = mp->lcl_is_ip4;
621 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
622 sizeof (ip46_address_t));
623 session->transport.lcl_port = mp->lcl_port;
624 vcl_session_table_add_listener (wrk, mp->handle, sid);
625 session->session_state = STATE_LISTEN;
627 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
628 vec_validate (wrk->vpp_event_queues, 0);
629 wrk->vpp_event_queues[0] = session->vpp_evt_q;
631 if (vcl_session_is_cl (session))
633 svm_fifo_t *rx_fifo, *tx_fifo;
634 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
635 rx_fifo = uword_to_pointer (mp->rx_fifo, svm_fifo_t *);
636 rx_fifo->client_session_index = sid;
637 tx_fifo = uword_to_pointer (mp->tx_fifo, svm_fifo_t *);
638 tx_fifo->client_session_index = sid;
639 session->rx_fifo = rx_fifo;
640 session->tx_fifo = tx_fifo;
643 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
648 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
650 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
653 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
656 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
659 if (s->session_state != STATE_DISCONNECT)
661 /* Connected udp listener */
662 if (s->session_type == VPPCOM_PROTO_UDP
663 && s->session_state == STATE_CLOSED)
666 VDBG (0, "Unlisten session in wrong state %llx", mp->handle);
671 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
672 s->session_index, mp->handle, format_session_error, mp->retval);
674 if (mp->context != wrk->wrk_index)
675 VDBG (0, "wrong context");
677 vcl_session_table_del_vpp_handle (wrk, mp->handle);
678 vcl_session_free (wrk, s);
682 vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
684 session_migrated_msg_t *mp = (session_migrated_msg_t *) data;
687 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
690 VDBG (0, "Migrated notification with wrong handle %llx", mp->handle);
694 s->vpp_thread_index = mp->vpp_thread_index;
695 s->vpp_handle = mp->new_handle;
696 s->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
698 vec_validate (wrk->vpp_event_queues, s->vpp_thread_index);
699 wrk->vpp_event_queues[s->vpp_thread_index] = s->vpp_evt_q;
701 vcl_session_table_del_vpp_handle (wrk, mp->handle);
702 vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
704 /* Generate new tx event if we have outstanding data */
705 if (svm_fifo_has_event (s->tx_fifo))
706 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
707 SESSION_IO_EVT_TX, SVM_Q_WAIT);
709 VDBG (0, "Migrated 0x%lx to thread %u 0x%lx", mp->handle,
710 s->vpp_thread_index, mp->new_handle);
713 static vcl_session_t *
714 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
716 vcl_session_msg_t *vcl_msg;
717 vcl_session_t *session;
719 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
720 if (PREDICT_FALSE (session != 0))
721 VWRN ("session overlap handle %lu state %u!", msg->handle,
722 session->session_state);
724 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
727 VERR ("couldn't find listen session: listener handle %llx",
728 msg->listener_handle);
732 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
734 vcl_msg->accepted_msg = *msg;
735 /* Session handle points to listener until fully accepted by app */
736 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
741 static vcl_session_t *
742 vcl_session_disconnected_handler (vcl_worker_t * wrk,
743 session_disconnected_msg_t * msg)
745 vcl_session_t *session;
747 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
750 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
754 /* Late disconnect notification on a session that has been closed */
755 if (session->session_state == STATE_CLOSED)
758 /* Caught a disconnect before actually accepting the session */
759 if (session->session_state == STATE_LISTEN)
761 if (!vcl_flag_accepted_session (session, msg->handle,
762 VCL_ACCEPTED_F_CLOSED))
763 VDBG (0, "session was not accepted!");
767 /* If not already reset change state */
768 if (session->session_state != STATE_DISCONNECT)
769 session->session_state = STATE_VPP_CLOSING;
775 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
777 session_cleanup_msg_t *msg;
778 vcl_session_t *session;
780 msg = (session_cleanup_msg_t *) data;
781 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
784 VDBG (0, "disconnect confirmed for unknown handle 0x%llx", msg->handle);
788 if (msg->type == SESSION_CLEANUP_TRANSPORT)
790 /* Transport was cleaned up before we confirmed close. Probably the
791 * app is still waiting for some data that cannot be delivered.
792 * Confirm close to make sure everything is cleaned up */
793 if (session->session_state == STATE_VPP_CLOSING)
794 vcl_session_cleanup (wrk, session, vcl_session_handle (session),
795 1 /* do_disconnect */ );
799 vcl_session_table_del_vpp_handle (wrk, msg->handle);
800 /* Should not happen. App did not close the connection so don't free it. */
801 if (session->session_state != STATE_CLOSED)
803 VDBG (0, "app did not close session %d", session->session_index);
804 session->session_state = STATE_DETACHED;
805 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
808 vcl_session_free (wrk, session);
812 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
814 session_req_worker_update_msg_t *msg;
817 msg = (session_req_worker_update_msg_t *) data;
818 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
822 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
826 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
828 session_worker_update_reply_msg_t *msg;
831 msg = (session_worker_update_reply_msg_t *) data;
832 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
835 VDBG (0, "unknown handle 0x%llx", msg->handle);
838 if (vcl_segment_is_not_mounted (wrk, msg->segment_handle))
840 clib_warning ("segment for session %u is not mounted!",
847 s->rx_fifo = uword_to_pointer (msg->rx_fifo, svm_fifo_t *);
848 s->tx_fifo = uword_to_pointer (msg->tx_fifo, svm_fifo_t *);
849 s->rx_fifo->client_session_index = s->session_index;
850 s->tx_fifo->client_session_index = s->session_index;
851 s->rx_fifo->client_thread_index = wrk->wrk_index;
852 s->tx_fifo->client_thread_index = wrk->wrk_index;
854 s->session_state = STATE_UPDATED;
856 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
857 s->vpp_handle, wrk->wrk_index);
861 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
863 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
864 session_app_add_segment_msg_t *msg;
868 msg = (session_app_add_segment_msg_t *) data;
872 vl_socket_client_recv_fd_msg2 (&wrk->bapi_sock_ctx, &fd, 1, 5);
873 seg_type = SSVM_SEGMENT_MEMFD;
876 segment_handle = msg->segment_handle;
877 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
879 clib_warning ("invalid segment handle");
883 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
886 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
890 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
895 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
897 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
898 vcl_segment_detach (msg->segment_handle);
899 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
903 vcl_worker_rpc_handler (vcl_worker_t * wrk, void *data)
905 if (!vcm->wrk_rpc_fn)
908 (vcm->wrk_rpc_fn) (((session_app_wrk_rpc_msg_t *) data)->data);
912 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
914 session_disconnected_msg_t *disconnected_msg;
915 vcl_session_t *session;
917 switch (e->event_type)
919 case SESSION_IO_EVT_RX:
920 case SESSION_IO_EVT_TX:
921 session = vcl_session_get (wrk, e->session_index);
922 if (!session || !(session->session_state & STATE_OPEN))
924 vec_add1 (wrk->unhandled_evts_vector, *e);
926 case SESSION_CTRL_EVT_ACCEPTED:
927 vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
929 case SESSION_CTRL_EVT_CONNECTED:
930 vcl_session_connected_handler (wrk,
931 (session_connected_msg_t *) e->data);
933 case SESSION_CTRL_EVT_DISCONNECTED:
934 disconnected_msg = (session_disconnected_msg_t *) e->data;
935 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
938 VDBG (0, "disconnected session %u [0x%llx]", session->session_index,
939 session->vpp_handle);
941 case SESSION_CTRL_EVT_RESET:
942 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
944 case SESSION_CTRL_EVT_BOUND:
945 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
947 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
948 vcl_session_unlisten_reply_handler (wrk, e->data);
950 case SESSION_CTRL_EVT_MIGRATED:
951 vcl_session_migrated_handler (wrk, e->data);
953 case SESSION_CTRL_EVT_CLEANUP:
954 vcl_session_cleanup_handler (wrk, e->data);
956 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
957 vcl_session_req_worker_update_handler (wrk, e->data);
959 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
960 vcl_session_worker_update_reply_handler (wrk, e->data);
962 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
963 vcl_session_app_add_segment_handler (wrk, e->data);
965 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
966 vcl_session_app_del_segment_handler (wrk, e->data);
968 case SESSION_CTRL_EVT_APP_WRK_RPC:
969 vcl_worker_rpc_handler (wrk, e->data);
972 clib_warning ("unhandled %u", e->event_type);
978 vppcom_wait_for_session_state_change (u32 session_index,
979 vcl_session_state_t state,
982 vcl_worker_t *wrk = vcl_worker_get_current ();
983 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
984 vcl_session_t *volatile session;
990 session = vcl_session_get (wrk, session_index);
991 if (PREDICT_FALSE (!session))
993 return VPPCOM_EBADFD;
995 if (session->session_state & state)
999 if (session->session_state & STATE_DETACHED)
1001 return VPPCOM_ECONNREFUSED;
1004 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
1009 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1010 vcl_handle_mq_event (wrk, e);
1011 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1013 while (clib_time_now (&wrk->clib_time) < timeout);
1015 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
1016 vppcom_session_state_str (state));
1017 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
1019 return VPPCOM_ETIMEDOUT;
1023 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
1025 vcl_session_state_t state;
1029 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
1032 vec_foreach (sip, wrk->pending_session_wrk_updates)
1034 s = vcl_session_get (wrk, *sip);
1035 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
1036 state = s->session_state;
1037 vppcom_wait_for_session_state_change (s->session_index, STATE_UPDATED, 5);
1038 s->session_state = state;
1040 vec_reset_length (wrk->pending_session_wrk_updates);
1044 vcl_flush_mq_events (void)
1046 vcl_worker_t *wrk = vcl_worker_get_current ();
1047 svm_msg_q_msg_t *msg;
1052 mq = wrk->app_event_queue;
1053 svm_msg_q_lock (mq);
1054 vcl_mq_dequeue_batch (wrk, mq, ~0);
1055 svm_msg_q_unlock (mq);
1057 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1059 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1060 e = svm_msg_q_msg_data (mq, msg);
1061 vcl_handle_mq_event (wrk, e);
1062 svm_msg_q_free_msg (mq, msg);
1064 vec_reset_length (wrk->mq_msg_vector);
1065 vcl_handle_pending_wrk_updates (wrk);
1069 vppcom_app_session_enable (void)
1073 if (vcm->app_state != STATE_APP_ENABLED)
1075 vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
1076 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
1077 if (PREDICT_FALSE (rv))
1079 VDBG (0, "application session enable timed out! returning %d (%s)",
1080 rv, vppcom_retval_str (rv));
1088 vppcom_app_attach (void)
1092 vppcom_app_send_attach ();
1093 rv = vcl_wait_for_app_state_change (STATE_APP_ATTACHED);
1094 if (PREDICT_FALSE (rv))
1096 VDBG (0, "application attach timed out! returning %d (%s)", rv,
1097 vppcom_retval_str (rv));
1105 vppcom_session_unbind (u32 session_handle)
1107 vcl_worker_t *wrk = vcl_worker_get_current ();
1108 session_accepted_msg_t *accepted_msg;
1109 vcl_session_t *session = 0;
1110 vcl_session_msg_t *evt;
1112 session = vcl_session_get_w_handle (wrk, session_handle);
1114 return VPPCOM_EBADFD;
1116 /* Flush pending accept events, if any */
1117 while (clib_fifo_elts (session->accept_evts_fifo))
1119 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1120 accepted_msg = &evt->accepted_msg;
1121 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1122 vcl_send_session_accepted_reply (session->vpp_evt_q,
1123 accepted_msg->context,
1124 session->vpp_handle, -1);
1126 clib_fifo_free (session->accept_evts_fifo);
1128 vcl_send_session_unlisten (wrk, session);
1130 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1131 session->vpp_handle);
1132 vcl_evt (VCL_EVT_UNBIND, session);
1134 session->vpp_handle = ~0;
1135 session->session_state = STATE_DISCONNECT;
1141 vppcom_session_disconnect (u32 session_handle)
1143 vcl_worker_t *wrk = vcl_worker_get_current ();
1144 svm_msg_q_t *vpp_evt_q;
1145 vcl_session_t *session, *listen_session;
1146 vcl_session_state_t state;
1149 session = vcl_session_get_w_handle (wrk, session_handle);
1151 return VPPCOM_EBADFD;
1153 vpp_handle = session->vpp_handle;
1154 state = session->session_state;
1156 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
1157 vpp_handle, state, vppcom_session_state_str (state));
1159 if (PREDICT_FALSE (state & STATE_LISTEN))
1161 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
1162 return VPPCOM_EBADFD;
1165 if (state & STATE_VPP_CLOSING)
1167 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
1168 vcl_send_session_disconnected_reply (vpp_evt_q, wrk->my_client_index,
1170 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
1171 session->session_index, vpp_handle);
1175 VDBG (1, "session %u [0x%llx]: sending disconnect...",
1176 session->session_index, vpp_handle);
1177 vcl_send_session_disconnect (wrk, session);
1180 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
1182 listen_session = vcl_session_get (wrk, session->listener_index);
1183 listen_session->n_accepted_sessions--;
1192 * Notify vpp of the disconnect and mark the worker as free. If we're the
1193 * last worker, do a full cleanup otherwise, since we're probably a forked
1194 * child, avoid syscalls as much as possible. We might've lost privileges.
1197 vppcom_app_exit (void)
1199 if (!pool_elts (vcm->workers))
1201 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1202 vcl_set_worker_index (~0);
1203 vcl_elog_stop (vcm);
1207 * VPPCOM Public API functions
1210 vppcom_app_create (const char *app_name)
1212 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1217 VDBG (1, "already initialized");
1218 return VPPCOM_EEXIST;
1222 vppcom_cfg (&vcm->cfg);
1223 vcl_cfg = &vcm->cfg;
1225 vcm->main_cpu = pthread_self ();
1226 vcm->main_pid = getpid ();
1227 vcm->app_name = format (0, "%s", app_name);
1228 vppcom_init_error_string_table ();
1229 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1230 20 /* timeout in secs */ );
1231 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1232 clib_spinlock_init (&vcm->workers_lock);
1233 clib_rwlock_init (&vcm->segment_table_lock);
1234 atexit (vppcom_app_exit);
1236 /* Allocate default worker */
1237 vcl_worker_alloc_and_init ();
1239 /* API hookup and connect to VPP */
1240 vcl_elog_init (vcm);
1241 vcm->app_state = STATE_APP_START;
1242 rv = vppcom_connect_to_vpp (app_name);
1245 VERR ("couldn't connect to VPP!");
1248 VDBG (0, "sending session enable");
1249 rv = vppcom_app_session_enable ();
1252 VERR ("vppcom_app_session_enable() failed!");
1256 VDBG (0, "sending app attach");
1257 rv = vppcom_app_attach ();
1260 VERR ("vppcom_app_attach() failed!");
1264 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1265 vcm->workers[0].my_client_index, vcm->workers[0].my_client_index);
1271 vppcom_app_destroy (void)
1273 vcl_worker_t *wrk, *current_wrk;
1274 struct dlmallinfo mi;
1277 if (!pool_elts (vcm->workers))
1280 vcl_evt (VCL_EVT_DETACH, vcm);
1282 current_wrk = vcl_worker_get_current ();
1285 pool_foreach (wrk, vcm->workers, ({
1286 if (current_wrk != wrk)
1287 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1291 vcl_send_app_detach (current_wrk);
1292 vppcom_disconnect_from_vpp ();
1293 vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
1295 vcl_elog_stop (vcm);
1298 * Free the heap and fix vcm
1300 heap = clib_mem_get_heap ();
1301 mi = mspace_mallinfo (heap);
1302 munmap (mspace_least_addr (heap), mi.arena);
1304 vcm = &_vppcom_main;
1309 vppcom_session_create (u8 proto, u8 is_nonblocking)
1311 vcl_worker_t *wrk = vcl_worker_get_current ();
1312 vcl_session_t *session;
1314 session = vcl_session_alloc (wrk);
1316 session->session_type = proto;
1317 session->session_state = STATE_CLOSED;
1318 session->vpp_handle = ~0;
1319 session->is_dgram = vcl_proto_is_dgram (proto);
1322 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
1324 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1325 is_nonblocking, session_index);
1327 VDBG (0, "created session %u", session->session_index);
1329 return vcl_session_handle (session);
1333 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * session,
1334 vcl_session_handle_t sh, u8 do_disconnect)
1336 vcl_session_state_t state;
1337 u32 next_sh, vep_sh;
1342 is_vep = session->is_vep;
1343 next_sh = session->vep.next_sh;
1344 vep_sh = session->vep.vep_sh;
1345 state = session->session_state;
1346 vpp_handle = session->vpp_handle;
1348 VDBG (1, "session %u [0x%llx] closing", session->session_index, vpp_handle);
1352 while (next_sh != ~0)
1354 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1355 if (PREDICT_FALSE (rv < 0))
1356 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1357 " failed! rv %d (%s)", vpp_handle, next_sh, vep_sh, rv,
1358 vppcom_retval_str (rv));
1360 next_sh = session->vep.next_sh;
1365 if (session->is_vep_session)
1367 rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, sh, 0);
1369 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1370 "failed! rv %d (%s)", session->session_index, vpp_handle,
1371 vep_sh, rv, vppcom_retval_str (rv));
1376 VDBG (1, "session %u [0x%llx] disconnect skipped",
1377 session->session_index, vpp_handle);
1381 if (state & STATE_LISTEN)
1383 rv = vppcom_session_unbind (sh);
1384 if (PREDICT_FALSE (rv < 0))
1385 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1386 "rv %d (%s)", session->session_index, vpp_handle, rv,
1387 vppcom_retval_str (rv));
1390 else if ((state & STATE_OPEN)
1391 || (vcl_session_is_connectable_listener (wrk, session)))
1393 rv = vppcom_session_disconnect (sh);
1394 if (PREDICT_FALSE (rv < 0))
1395 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1396 " rv %d (%s)", session->session_index, vpp_handle,
1397 rv, vppcom_retval_str (rv));
1399 else if (state == STATE_DISCONNECT)
1401 svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, session);
1402 vcl_send_session_reset_reply (mq, wrk->my_client_index,
1403 session->vpp_handle, 0);
1405 else if (state == STATE_DETACHED)
1407 /* Should not happen. VPP cleaned up before app confirmed close */
1408 VDBG (0, "vpp freed session %d before close", session->session_index);
1412 session->session_state = STATE_CLOSED;
1414 /* Session is removed only after vpp confirms the disconnect */
1418 vcl_session_table_del_vpp_handle (wrk, vpp_handle);
1420 vcl_session_free (wrk, session);
1421 vcl_evt (VCL_EVT_CLOSE, session, rv);
1427 vppcom_session_close (uint32_t session_handle)
1429 vcl_worker_t *wrk = vcl_worker_get_current ();
1430 vcl_session_t *session;
1432 session = vcl_session_get_w_handle (wrk, session_handle);
1434 return VPPCOM_EBADFD;
1435 return vcl_session_cleanup (wrk, session, session_handle,
1436 1 /* do_disconnect */ );
1440 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1442 vcl_worker_t *wrk = vcl_worker_get_current ();
1443 vcl_session_t *session = 0;
1446 return VPPCOM_EINVAL;
1448 session = vcl_session_get_w_handle (wrk, session_handle);
1450 return VPPCOM_EBADFD;
1452 if (session->is_vep)
1454 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1455 session->session_index);
1456 return VPPCOM_EBADFD;
1459 session->transport.is_ip4 = ep->is_ip4;
1461 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1462 sizeof (ip4_address_t));
1464 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1465 sizeof (ip6_address_t));
1466 session->transport.lcl_port = ep->port;
1468 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1469 "proto %s", session->session_index, session_handle,
1470 session->transport.is_ip4 ? "IPv4" : "IPv6",
1471 format_ip46_address, &session->transport.lcl_ip,
1472 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1473 clib_net_to_host_u16 (session->transport.lcl_port),
1474 vppcom_proto_str (session->session_type));
1475 vcl_evt (VCL_EVT_BIND, session);
1477 if (session->session_type == VPPCOM_PROTO_UDP)
1478 vppcom_session_listen (session_handle, 10);
1484 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1486 vcl_worker_t *wrk = vcl_worker_get_current ();
1487 vcl_session_t *listen_session = 0;
1488 u64 listen_vpp_handle;
1491 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1492 if (!listen_session || listen_session->is_vep)
1493 return VPPCOM_EBADFD;
1495 if (q_len == 0 || q_len == ~0)
1496 q_len = vcm->cfg.listen_queue_size;
1498 listen_vpp_handle = listen_session->vpp_handle;
1499 if (listen_session->session_state & STATE_LISTEN)
1501 VDBG (0, "session %u [0x%llx]: already in listen state!",
1502 listen_sh, listen_vpp_handle);
1506 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1509 * Send listen request to vpp and wait for reply
1511 vcl_send_session_listen (wrk, listen_session);
1512 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1514 vcm->cfg.session_timeout);
1516 if (PREDICT_FALSE (rv))
1518 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1519 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1520 listen_sh, listen_session->vpp_handle, rv,
1521 vppcom_retval_str (rv));
1529 vppcom_session_tls_add_cert (uint32_t session_handle, char *cert,
1533 vcl_worker_t *wrk = vcl_worker_get_current ();
1534 vcl_session_t *session = 0;
1536 session = vcl_session_get_w_handle (wrk, session_handle);
1538 return VPPCOM_EBADFD;
1540 if (cert_len == 0 || cert_len == ~0)
1541 return VPPCOM_EBADFD;
1544 * Send listen request to vpp and wait for reply
1546 vppcom_send_application_tls_cert_add (session, cert, cert_len);
1547 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1548 vcl_wait_for_app_state_change (STATE_APP_READY);
1554 vppcom_session_tls_add_key (uint32_t session_handle, char *key,
1558 vcl_worker_t *wrk = vcl_worker_get_current ();
1559 vcl_session_t *session = 0;
1561 session = vcl_session_get_w_handle (wrk, session_handle);
1563 return VPPCOM_EBADFD;
1565 if (key_len == 0 || key_len == ~0)
1566 return VPPCOM_EBADFD;
1568 vppcom_send_application_tls_key_add (session, key, key_len);
1569 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1570 vcl_wait_for_app_state_change (STATE_APP_READY);
1575 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1579 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1581 return VPPCOM_EBADFD;
1584 if ((ls->session_state != STATE_LISTEN)
1585 && (!vcl_session_is_connectable_listener (wrk, ls)))
1588 "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1589 " (%s)", ls->vpp_handle, ls->session_state,
1590 vppcom_session_state_str (ls->session_state));
1591 return VPPCOM_EBADFD;
1597 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1599 if (!strcmp (proto_str, "TCP"))
1600 *proto = VPPCOM_PROTO_TCP;
1601 else if (!strcmp (proto_str, "tcp"))
1602 *proto = VPPCOM_PROTO_TCP;
1603 else if (!strcmp (proto_str, "UDP"))
1604 *proto = VPPCOM_PROTO_UDP;
1605 else if (!strcmp (proto_str, "udp"))
1606 *proto = VPPCOM_PROTO_UDP;
1607 else if (!strcmp (proto_str, "TLS"))
1608 *proto = VPPCOM_PROTO_TLS;
1609 else if (!strcmp (proto_str, "tls"))
1610 *proto = VPPCOM_PROTO_TLS;
1611 else if (!strcmp (proto_str, "QUIC"))
1612 *proto = VPPCOM_PROTO_QUIC;
1613 else if (!strcmp (proto_str, "quic"))
1614 *proto = VPPCOM_PROTO_QUIC;
1621 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1624 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1625 vcl_worker_t *wrk = vcl_worker_get_current ();
1626 session_accepted_msg_t accepted_msg;
1627 vcl_session_t *listen_session = 0;
1628 vcl_session_t *client_session = 0;
1629 vcl_session_msg_t *evt;
1630 svm_msg_q_msg_t msg;
1635 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1636 if (!listen_session)
1637 return VPPCOM_EBADFD;
1639 listen_session_index = listen_session->session_index;
1640 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1643 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1645 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1646 accept_flags = evt->flags;
1647 accepted_msg = evt->accepted_msg;
1651 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1652 VCL_SESS_ATTR_NONBLOCK);
1655 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1656 return VPPCOM_EAGAIN;
1658 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1659 return VPPCOM_EAGAIN;
1661 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1662 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1664 vcl_handle_mq_event (wrk, e);
1665 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1668 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1669 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1675 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1676 listen_session_index);
1677 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1678 return VPPCOM_ECONNABORTED;
1680 listen_session = vcl_session_get (wrk, listen_session_index);
1681 client_session = vcl_session_get (wrk, client_session_index);
1683 if (flags & O_NONBLOCK)
1684 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1686 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1687 " flags %d, is_nonblocking %u", listen_session->session_index,
1688 listen_session->vpp_handle, client_session_index,
1689 client_session->vpp_handle, flags,
1690 VCL_SESS_ATTR_TEST (client_session->attr, VCL_SESS_ATTR_NONBLOCK));
1694 ep->is_ip4 = client_session->transport.is_ip4;
1695 ep->port = client_session->transport.rmt_port;
1696 if (client_session->transport.is_ip4)
1697 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1698 sizeof (ip4_address_t));
1700 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1701 sizeof (ip6_address_t));
1704 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1705 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1706 client_session_index, client_session->vpp_handle,
1707 format_ip46_address, &client_session->transport.rmt_ip,
1708 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1709 clib_net_to_host_u16 (client_session->transport.rmt_port),
1710 format_ip46_address, &client_session->transport.lcl_ip,
1711 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1712 clib_net_to_host_u16 (client_session->transport.lcl_port));
1713 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1714 client_session_index);
1717 * Session might have been closed already
1721 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1722 client_session->session_state = STATE_VPP_CLOSING;
1723 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1724 client_session->session_state = STATE_DISCONNECT;
1726 return vcl_session_handle (client_session);
1730 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1732 vcl_worker_t *wrk = vcl_worker_get_current ();
1733 vcl_session_t *session = 0;
1737 session = vcl_session_get_w_handle (wrk, session_handle);
1739 return VPPCOM_EBADFD;
1740 session_index = session->session_index;
1742 if (PREDICT_FALSE (session->is_vep))
1744 VDBG (0, "ERROR: cannot connect epoll session %u!",
1745 session->session_index);
1746 return VPPCOM_EBADFD;
1749 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1751 VDBG (0, "session handle %u [0x%llx]: session already "
1752 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1753 session_handle, session->vpp_handle,
1754 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1755 &session->transport.rmt_ip, session->transport.is_ip4 ?
1756 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1757 clib_net_to_host_u16 (session->transport.rmt_port),
1758 vppcom_proto_str (session->session_type), session->session_state,
1759 vppcom_session_state_str (session->session_state));
1763 /* Attempt to connect a connectionless listener */
1764 if (PREDICT_FALSE (session->session_state & STATE_LISTEN))
1766 if (session->session_type != VPPCOM_PROTO_UDP)
1767 return VPPCOM_EINVAL;
1768 vcl_send_session_unlisten (wrk, session);
1769 session->session_state = STATE_CLOSED;
1772 session->transport.is_ip4 = server_ep->is_ip4;
1773 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1774 session->transport.rmt_port = server_ep->port;
1775 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1776 session->flags |= VCL_SESSION_F_CONNECTED;
1778 VDBG (0, "session handle %u (%s): connecting to peer %s %U "
1779 "port %d proto %s", session_handle,
1780 vppcom_session_state_str (session->session_state),
1781 session->transport.is_ip4 ? "IPv4" : "IPv6",
1782 format_ip46_address,
1783 &session->transport.rmt_ip, session->transport.is_ip4 ?
1784 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1785 clib_net_to_host_u16 (session->transport.rmt_port),
1786 vppcom_proto_str (session->session_type));
1788 vcl_send_session_connect (wrk, session);
1790 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK))
1791 return VPPCOM_EINPROGRESS;
1794 * Wait for reply from vpp if blocking
1796 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1797 vcm->cfg.session_timeout);
1799 session = vcl_session_get (wrk, session_index);
1800 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1801 session->vpp_handle, rv ? "failed" : "succeeded");
1807 vppcom_session_stream_connect (uint32_t session_handle,
1808 uint32_t parent_session_handle)
1810 vcl_worker_t *wrk = vcl_worker_get_current ();
1811 vcl_session_t *session, *parent_session;
1812 u32 session_index, parent_session_index;
1815 session = vcl_session_get_w_handle (wrk, session_handle);
1817 return VPPCOM_EBADFD;
1818 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1819 if (!parent_session)
1820 return VPPCOM_EBADFD;
1822 session_index = session->session_index;
1823 parent_session_index = parent_session->session_index;
1824 if (PREDICT_FALSE (session->is_vep))
1826 VDBG (0, "ERROR: cannot connect epoll session %u!",
1827 session->session_index);
1828 return VPPCOM_EBADFD;
1831 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1833 VDBG (0, "session handle %u [0x%llx]: session already "
1834 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1835 session_handle, session->vpp_handle,
1836 parent_session_handle, parent_session->vpp_handle,
1837 vppcom_proto_str (session->session_type), session->session_state,
1838 vppcom_session_state_str (session->session_state));
1842 /* Connect to quic session specifics */
1843 session->transport.is_ip4 = parent_session->transport.is_ip4;
1844 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1845 session->transport.rmt_port = 0;
1846 session->parent_handle = parent_session->vpp_handle;
1848 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1849 session_handle, parent_session_handle, parent_session->vpp_handle);
1852 * Send connect request and wait for reply from vpp
1854 vcl_send_session_connect (wrk, session);
1855 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1856 vcm->cfg.session_timeout);
1858 session->listener_index = parent_session_index;
1859 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1861 parent_session->n_accepted_sessions++;
1863 session = vcl_session_get (wrk, session_index);
1864 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1865 session->vpp_handle, rv ? "failed" : "succeeded");
1871 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1873 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1877 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1880 vcl_worker_t *wrk = vcl_worker_get_current ();
1881 int n_read = 0, is_nonblocking;
1882 vcl_session_t *s = 0;
1883 svm_fifo_t *rx_fifo;
1884 svm_msg_q_msg_t msg;
1889 if (PREDICT_FALSE (!buf))
1890 return VPPCOM_EINVAL;
1892 s = vcl_session_get_w_handle (wrk, session_handle);
1893 if (PREDICT_FALSE (!s || s->is_vep))
1894 return VPPCOM_EBADFD;
1896 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1898 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1899 s->session_index, s->vpp_handle, s->session_state,
1900 vppcom_session_state_str (s->session_state));
1901 return vcl_session_closed_error (s);
1904 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1905 is_ct = vcl_session_is_ct (s);
1906 mq = wrk->app_event_queue;
1907 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1910 if (svm_fifo_is_empty_cons (rx_fifo))
1914 if (vcl_session_is_closing (s))
1915 return vcl_session_closing_error (s);
1916 svm_fifo_unset_event (s->rx_fifo);
1917 return VPPCOM_EWOULDBLOCK;
1919 while (svm_fifo_is_empty_cons (rx_fifo))
1921 if (vcl_session_is_closing (s))
1922 return vcl_session_closing_error (s);
1924 svm_fifo_unset_event (s->rx_fifo);
1925 svm_msg_q_lock (mq);
1926 if (svm_msg_q_is_empty (mq))
1927 svm_msg_q_wait (mq);
1929 svm_msg_q_sub_w_lock (mq, &msg);
1930 e = svm_msg_q_msg_data (mq, &msg);
1931 svm_msg_q_unlock (mq);
1932 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1933 vcl_handle_mq_event (wrk, e);
1934 svm_msg_q_free_msg (mq, &msg);
1939 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1941 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1943 if (svm_fifo_is_empty_cons (rx_fifo))
1944 svm_fifo_unset_event (s->rx_fifo);
1946 /* Cut-through sessions might request tx notifications on rx fifos */
1947 if (PREDICT_FALSE (rx_fifo->want_deq_ntf))
1949 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1950 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1951 svm_fifo_reset_has_deq_ntf (s->rx_fifo);
1954 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1955 s->vpp_handle, n_read, rx_fifo);
1961 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1963 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1967 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1969 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1973 vppcom_session_read_segments (uint32_t session_handle,
1974 vppcom_data_segments_t ds)
1976 vcl_worker_t *wrk = vcl_worker_get_current ();
1977 int n_read = 0, is_nonblocking;
1978 vcl_session_t *s = 0;
1979 svm_fifo_t *rx_fifo;
1980 svm_msg_q_msg_t msg;
1985 s = vcl_session_get_w_handle (wrk, session_handle);
1986 if (PREDICT_FALSE (!s || s->is_vep))
1987 return VPPCOM_EBADFD;
1989 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1990 return vcl_session_closed_error (s);
1992 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1993 is_ct = vcl_session_is_ct (s);
1994 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1995 rx_fifo = s->rx_fifo;
1999 svm_fifo_unset_event (s->rx_fifo);
2001 if (svm_fifo_is_empty_cons (rx_fifo))
2005 svm_fifo_unset_event (rx_fifo);
2006 return VPPCOM_EWOULDBLOCK;
2008 while (svm_fifo_is_empty_cons (rx_fifo))
2010 if (vcl_session_is_closing (s))
2011 return vcl_session_closing_error (s);
2013 svm_fifo_unset_event (rx_fifo);
2014 svm_msg_q_lock (mq);
2015 if (svm_msg_q_is_empty (mq))
2016 svm_msg_q_wait (mq);
2018 svm_msg_q_sub_w_lock (mq, &msg);
2019 e = svm_msg_q_msg_data (mq, &msg);
2020 svm_msg_q_unlock (mq);
2021 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
2022 vcl_handle_mq_event (wrk, e);
2023 svm_msg_q_free_msg (mq, &msg);
2027 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_seg_t *) ds);
2028 svm_fifo_unset_event (rx_fifo);
2034 vppcom_session_free_segments (uint32_t session_handle,
2035 vppcom_data_segments_t ds)
2037 vcl_worker_t *wrk = vcl_worker_get_current ();
2040 s = vcl_session_get_w_handle (wrk, session_handle);
2041 if (PREDICT_FALSE (!s || s->is_vep))
2044 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_seg_t *) ds);
2048 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
2050 u32 first_copy = clib_min (ds[0].len, max_bytes);
2051 clib_memcpy_fast (buf, ds[0].data, first_copy);
2052 if (first_copy < max_bytes)
2054 clib_memcpy_fast (buf + first_copy, ds[1].data,
2055 clib_min (ds[1].len, max_bytes - first_copy));
2061 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
2063 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
2067 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2069 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2071 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2077 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2078 size_t n, u8 is_flush, u8 is_dgram)
2080 int n_write, is_nonblocking;
2081 session_evt_type_t et;
2082 svm_msg_q_msg_t msg;
2083 svm_fifo_t *tx_fifo;
2088 if (PREDICT_FALSE (!buf || n == 0))
2089 return VPPCOM_EINVAL;
2091 if (PREDICT_FALSE (s->is_vep))
2093 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2094 " session!", s->session_index, s->vpp_handle);
2095 return VPPCOM_EBADFD;
2098 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2100 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2101 s->session_index, s->vpp_handle, s->session_state,
2102 vppcom_session_state_str (s->session_state));
2103 return vcl_session_closed_error (s);;
2106 is_ct = vcl_session_is_ct (s);
2107 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2108 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
2110 mq = wrk->app_event_queue;
2111 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2115 return VPPCOM_EWOULDBLOCK;
2117 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2119 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2120 if (vcl_session_is_closing (s))
2121 return vcl_session_closing_error (s);
2122 svm_msg_q_lock (mq);
2123 if (svm_msg_q_is_empty (mq))
2124 svm_msg_q_wait (mq);
2126 svm_msg_q_sub_w_lock (mq, &msg);
2127 e = svm_msg_q_msg_data (mq, &msg);
2128 svm_msg_q_unlock (mq);
2130 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
2131 vcl_handle_mq_event (wrk, e);
2132 svm_msg_q_free_msg (mq, &msg);
2136 et = SESSION_IO_EVT_TX;
2137 if (is_flush && !is_ct)
2138 et = SESSION_IO_EVT_TX_FLUSH;
2141 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2142 s->vpp_evt_q, buf, n, et,
2143 0 /* do_evt */ , SVM_Q_WAIT);
2145 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2146 0 /* do_evt */ , SVM_Q_WAIT);
2148 if (svm_fifo_set_event (s->tx_fifo))
2149 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
2152 ASSERT (n_write > 0);
2154 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2155 s->vpp_handle, n_write);
2161 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2163 vcl_worker_t *wrk = vcl_worker_get_current ();
2166 s = vcl_session_get_w_handle (wrk, session_handle);
2167 if (PREDICT_FALSE (!s))
2168 return VPPCOM_EBADFD;
2170 return vppcom_session_write_inline (wrk, s, buf, n,
2171 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2175 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2177 vcl_worker_t *wrk = vcl_worker_get_current ();
2180 s = vcl_session_get_w_handle (wrk, session_handle);
2181 if (PREDICT_FALSE (!s))
2182 return VPPCOM_EBADFD;
2184 return vppcom_session_write_inline (wrk, s, buf, n,
2185 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2188 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2189 if (PREDICT_FALSE (!_s->rx_fifo)) \
2191 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2193 if (!vcl_session_is_ct (_s)) \
2195 svm_fifo_unset_event (_s->rx_fifo); \
2196 if (svm_fifo_is_empty (_s->rx_fifo)) \
2199 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2201 svm_fifo_unset_event (_s->ct_rx_fifo); \
2202 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2208 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2209 unsigned long n_bits, unsigned long *read_map,
2210 unsigned long *write_map,
2211 unsigned long *except_map, u32 * bits_set)
2213 session_disconnected_msg_t *disconnected_msg;
2214 session_connected_msg_t *connected_msg;
2215 vcl_session_t *session;
2218 switch (e->event_type)
2220 case SESSION_IO_EVT_RX:
2221 sid = e->session_index;
2222 session = vcl_session_get (wrk, sid);
2223 if (!session || !vcl_session_is_open (session))
2225 vcl_fifo_rx_evt_valid_or_break (session);
2226 if (sid < n_bits && read_map)
2228 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2232 case SESSION_IO_EVT_TX:
2233 sid = e->session_index;
2234 session = vcl_session_get (wrk, sid);
2235 if (!session || !vcl_session_is_open (session))
2237 if (sid < n_bits && write_map)
2239 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2243 case SESSION_CTRL_EVT_ACCEPTED:
2244 session = vcl_session_accepted (wrk,
2245 (session_accepted_msg_t *) e->data);
2248 sid = session->session_index;
2249 if (sid < n_bits && read_map)
2251 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2255 case SESSION_CTRL_EVT_CONNECTED:
2256 connected_msg = (session_connected_msg_t *) e->data;
2257 sid = vcl_session_connected_handler (wrk, connected_msg);
2258 if (sid == VCL_INVALID_SESSION_INDEX)
2260 if (sid < n_bits && write_map)
2262 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2266 case SESSION_CTRL_EVT_DISCONNECTED:
2267 disconnected_msg = (session_disconnected_msg_t *) e->data;
2268 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2271 sid = session->session_index;
2272 if (sid < n_bits && except_map)
2274 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2278 case SESSION_CTRL_EVT_RESET:
2279 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2280 if (sid < n_bits && except_map)
2282 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2286 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2287 vcl_session_unlisten_reply_handler (wrk, e->data);
2289 case SESSION_CTRL_EVT_MIGRATED:
2290 vcl_session_migrated_handler (wrk, e->data);
2292 case SESSION_CTRL_EVT_CLEANUP:
2293 vcl_session_cleanup_handler (wrk, e->data);
2295 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2296 vcl_session_worker_update_reply_handler (wrk, e->data);
2298 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2299 vcl_session_req_worker_update_handler (wrk, e->data);
2301 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2302 vcl_session_app_add_segment_handler (wrk, e->data);
2304 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2305 vcl_session_app_del_segment_handler (wrk, e->data);
2307 case SESSION_CTRL_EVT_APP_WRK_RPC:
2308 vcl_worker_rpc_handler (wrk, e->data);
2311 clib_warning ("unhandled: %u", e->event_type);
2317 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2318 unsigned long n_bits, unsigned long *read_map,
2319 unsigned long *write_map, unsigned long *except_map,
2320 double time_to_wait, u32 * bits_set)
2322 svm_msg_q_msg_t *msg;
2326 svm_msg_q_lock (mq);
2327 if (svm_msg_q_is_empty (mq))
2331 svm_msg_q_unlock (mq);
2337 svm_msg_q_unlock (mq);
2340 else if (time_to_wait < 0)
2342 svm_msg_q_wait (mq);
2346 if (svm_msg_q_timedwait (mq, time_to_wait))
2348 svm_msg_q_unlock (mq);
2353 vcl_mq_dequeue_batch (wrk, mq, ~0);
2354 svm_msg_q_unlock (mq);
2356 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2358 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2359 e = svm_msg_q_msg_data (mq, msg);
2360 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2361 except_map, bits_set);
2362 svm_msg_q_free_msg (mq, msg);
2364 vec_reset_length (wrk->mq_msg_vector);
2365 vcl_handle_pending_wrk_updates (wrk);
2370 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2371 vcl_si_set * read_map, vcl_si_set * write_map,
2372 vcl_si_set * except_map, double time_to_wait,
2375 double wait = 0, start = 0;
2379 wait = time_to_wait;
2380 start = clib_time_now (&wrk->clib_time);
2385 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2386 write_map, except_map, wait, bits_set);
2392 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2400 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2401 vcl_si_set * read_map, vcl_si_set * write_map,
2402 vcl_si_set * except_map, double time_to_wait,
2405 vcl_mq_evt_conn_t *mqc;
2406 int __clib_unused n_read;
2410 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2411 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2412 vec_len (wrk->mq_events), time_to_wait);
2413 for (i = 0; i < n_mq_evts; i++)
2415 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2416 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2417 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2418 except_map, 0, bits_set);
2421 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2425 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2426 vcl_si_set * except_map, double time_to_wait)
2428 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2429 vcl_worker_t *wrk = vcl_worker_get_current ();
2430 vcl_session_t *session = 0;
2433 if (n_bits && read_map)
2435 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2436 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2437 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2438 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2440 if (n_bits && write_map)
2442 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2443 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2444 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2445 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2447 if (n_bits && except_map)
2449 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2450 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2451 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2452 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2462 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2463 if (!(session = vcl_session_get (wrk, sid)))
2465 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2470 if (vcl_session_write_ready (session))
2472 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2476 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2483 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2484 if (!(session = vcl_session_get (wrk, sid)))
2486 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2491 if (vcl_session_read_ready (session))
2493 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2501 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2503 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2504 read_map, write_map, except_map, &bits_set);
2506 vec_reset_length (wrk->unhandled_evts_vector);
2508 if (vcm->cfg.use_mq_eventfd)
2509 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2510 time_to_wait, &bits_set);
2512 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2513 time_to_wait, &bits_set);
2519 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2521 vcl_session_t *session;
2522 vppcom_epoll_t *vep;
2523 u32 sh = vep_handle;
2525 if (VPPCOM_DEBUG <= 2)
2528 session = vcl_session_get_w_handle (wrk, vep_handle);
2529 if (PREDICT_FALSE (!session))
2531 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2534 if (PREDICT_FALSE (!session->is_vep))
2536 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2539 vep = &session->vep;
2540 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2543 " is_vep_session = %u\n"
2544 " next_sh = 0x%x (%u)\n"
2545 "}\n", vep_handle, session->is_vep, session->is_vep_session,
2546 vep->next_sh, vep->next_sh);
2548 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2550 session = vcl_session_get_w_handle (wrk, sh);
2551 if (PREDICT_FALSE (!session))
2553 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2556 if (PREDICT_FALSE (session->is_vep))
2558 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2560 else if (PREDICT_FALSE (!session->is_vep_session))
2562 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2565 vep = &session->vep;
2566 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2567 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2568 sh, session->vep.vep_sh, vep_handle);
2569 if (session->is_vep_session)
2571 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2573 " next_sh = 0x%x (%u)\n"
2574 " prev_sh = 0x%x (%u)\n"
2575 " vep_sh = 0x%x (%u)\n"
2576 " ev.events = 0x%x\n"
2577 " ev.data.u64 = 0x%llx\n"
2580 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2581 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2582 vep->ev.data.u64, vep->et_mask);
2587 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2591 vppcom_epoll_create (void)
2593 vcl_worker_t *wrk = vcl_worker_get_current ();
2594 vcl_session_t *vep_session;
2596 vep_session = vcl_session_alloc (wrk);
2598 vep_session->is_vep = 1;
2599 vep_session->vep.vep_sh = ~0;
2600 vep_session->vep.next_sh = ~0;
2601 vep_session->vep.prev_sh = ~0;
2602 vep_session->vpp_handle = ~0;
2604 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2605 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2607 return vcl_session_handle (vep_session);
2611 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2612 struct epoll_event *event)
2614 vcl_worker_t *wrk = vcl_worker_get_current ();
2615 vcl_session_t *vep_session;
2616 vcl_session_t *session;
2619 if (vep_handle == session_handle)
2621 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2622 return VPPCOM_EINVAL;
2625 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2626 if (PREDICT_FALSE (!vep_session))
2628 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2629 return VPPCOM_EBADFD;
2631 if (PREDICT_FALSE (!vep_session->is_vep))
2633 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2634 return VPPCOM_EINVAL;
2637 ASSERT (vep_session->vep.vep_sh == ~0);
2638 ASSERT (vep_session->vep.prev_sh == ~0);
2640 session = vcl_session_get_w_handle (wrk, session_handle);
2641 if (PREDICT_FALSE (!session))
2643 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2644 return VPPCOM_EBADFD;
2646 if (PREDICT_FALSE (session->is_vep))
2648 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2649 return VPPCOM_EINVAL;
2655 if (PREDICT_FALSE (!event))
2657 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2658 return VPPCOM_EINVAL;
2660 if (vep_session->vep.next_sh != ~0)
2662 vcl_session_t *next_session;
2663 next_session = vcl_session_get_w_handle (wrk,
2664 vep_session->vep.next_sh);
2665 if (PREDICT_FALSE (!next_session))
2667 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2668 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2669 return VPPCOM_EBADFD;
2671 ASSERT (next_session->vep.prev_sh == vep_handle);
2672 next_session->vep.prev_sh = session_handle;
2674 session->vep.next_sh = vep_session->vep.next_sh;
2675 session->vep.prev_sh = vep_handle;
2676 session->vep.vep_sh = vep_handle;
2677 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2678 session->vep.ev = *event;
2679 session->is_vep = 0;
2680 session->is_vep_session = 1;
2681 vep_session->vep.next_sh = session_handle;
2683 if (session->tx_fifo)
2684 svm_fifo_add_want_deq_ntf (session->tx_fifo,
2685 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2687 /* Generate EPOLLOUT if tx fifo not full */
2688 if ((event->events & EPOLLOUT) &&
2689 (vcl_session_write_ready (session) > 0))
2691 session_event_t e = { 0 };
2692 e.event_type = SESSION_IO_EVT_TX;
2693 e.session_index = session->session_index;
2694 vec_add1 (wrk->unhandled_evts_vector, e);
2696 /* Generate EPOLLIN if rx fifo has data */
2697 if ((event->events & EPOLLIN) && (vcl_session_read_ready (session) > 0))
2699 session_event_t e = { 0 };
2700 e.event_type = SESSION_IO_EVT_RX;
2701 e.session_index = session->session_index;
2702 vec_add1 (wrk->unhandled_evts_vector, e);
2704 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2705 vep_handle, session_handle, event->events, event->data.u64);
2706 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2710 if (PREDICT_FALSE (!event))
2712 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2716 else if (PREDICT_FALSE (!session->is_vep_session))
2718 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2722 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2724 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2725 session_handle, session->vep.vep_sh, vep_handle);
2730 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2731 if ((event->events & EPOLLOUT) &&
2732 !(session->vep.ev.events & EPOLLOUT) &&
2733 (vcl_session_write_ready (session) > 0))
2735 session_event_t e = { 0 };
2736 e.event_type = SESSION_IO_EVT_TX;
2737 e.session_index = session->session_index;
2738 vec_add1 (wrk->unhandled_evts_vector, e);
2740 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2741 session->vep.ev = *event;
2742 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2743 vep_handle, session_handle, event->events, event->data.u64);
2747 if (PREDICT_FALSE (!session->is_vep_session))
2749 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2753 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2755 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2756 session_handle, session->vep.vep_sh, vep_handle);
2761 if (session->vep.prev_sh == vep_handle)
2762 vep_session->vep.next_sh = session->vep.next_sh;
2765 vcl_session_t *prev_session;
2766 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2767 if (PREDICT_FALSE (!prev_session))
2769 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2770 session->vep.prev_sh, session_handle);
2771 return VPPCOM_EBADFD;
2773 ASSERT (prev_session->vep.next_sh == session_handle);
2774 prev_session->vep.next_sh = session->vep.next_sh;
2776 if (session->vep.next_sh != ~0)
2778 vcl_session_t *next_session;
2779 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2780 if (PREDICT_FALSE (!next_session))
2782 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2783 session->vep.next_sh, session_handle);
2784 return VPPCOM_EBADFD;
2786 ASSERT (next_session->vep.prev_sh == session_handle);
2787 next_session->vep.prev_sh = session->vep.prev_sh;
2790 memset (&session->vep, 0, sizeof (session->vep));
2791 session->vep.next_sh = ~0;
2792 session->vep.prev_sh = ~0;
2793 session->vep.vep_sh = ~0;
2794 session->is_vep_session = 0;
2796 if (session->tx_fifo)
2797 svm_fifo_del_want_deq_ntf (session->tx_fifo, SVM_FIFO_NO_DEQ_NOTIF);
2799 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2801 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2805 VDBG (0, "Invalid operation (%d)!", op);
2809 vep_verify_epoll_chain (wrk, vep_handle);
2816 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2817 struct epoll_event *events, u32 * num_ev)
2819 session_disconnected_msg_t *disconnected_msg;
2820 session_connected_msg_t *connected_msg;
2821 u32 sid = ~0, session_events;
2822 u64 session_evt_data = ~0;
2823 vcl_session_t *session;
2826 switch (e->event_type)
2828 case SESSION_IO_EVT_RX:
2829 sid = e->session_index;
2830 session = vcl_session_get (wrk, sid);
2831 if (vcl_session_is_closed (session))
2833 vcl_fifo_rx_evt_valid_or_break (session);
2834 session_events = session->vep.ev.events;
2835 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2838 events[*num_ev].events |= EPOLLIN;
2839 session_evt_data = session->vep.ev.data.u64;
2840 session->has_rx_evt = 1;
2842 case SESSION_IO_EVT_TX:
2843 sid = e->session_index;
2844 session = vcl_session_get (wrk, sid);
2845 if (vcl_session_is_closed (session))
2847 session_events = session->vep.ev.events;
2848 if (!(EPOLLOUT & session_events))
2851 events[*num_ev].events |= EPOLLOUT;
2852 session_evt_data = session->vep.ev.data.u64;
2853 svm_fifo_reset_has_deq_ntf (session->tx_fifo);
2855 case SESSION_CTRL_EVT_ACCEPTED:
2856 session = vcl_session_accepted (wrk,
2857 (session_accepted_msg_t *) e->data);
2861 session_events = session->vep.ev.events;
2862 if (!(EPOLLIN & session_events))
2866 events[*num_ev].events |= EPOLLIN;
2867 session_evt_data = session->vep.ev.data.u64;
2869 case SESSION_CTRL_EVT_CONNECTED:
2870 connected_msg = (session_connected_msg_t *) e->data;
2871 sid = vcl_session_connected_handler (wrk, connected_msg);
2872 /* Generate EPOLLOUT because there's no connected event */
2873 session = vcl_session_get (wrk, sid);
2874 if (vcl_session_is_closed (session))
2876 session_events = session->vep.ev.events;
2877 if (!(EPOLLOUT & session_events))
2880 events[*num_ev].events |= EPOLLOUT;
2881 session_evt_data = session->vep.ev.data.u64;
2882 if (session->session_state & STATE_DETACHED)
2883 events[*num_ev].events |= EPOLLHUP;
2885 case SESSION_CTRL_EVT_DISCONNECTED:
2886 disconnected_msg = (session_disconnected_msg_t *) e->data;
2887 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2888 if (vcl_session_is_closed (session))
2890 session_events = session->vep.ev.events;
2892 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2893 session_evt_data = session->vep.ev.data.u64;
2895 case SESSION_CTRL_EVT_RESET:
2896 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2897 session = vcl_session_get (wrk, sid);
2898 if (vcl_session_is_closed (session))
2900 session_events = session->vep.ev.events;
2902 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2903 session_evt_data = session->vep.ev.data.u64;
2905 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2906 vcl_session_unlisten_reply_handler (wrk, e->data);
2908 case SESSION_CTRL_EVT_MIGRATED:
2909 vcl_session_migrated_handler (wrk, e->data);
2911 case SESSION_CTRL_EVT_CLEANUP:
2912 vcl_session_cleanup_handler (wrk, e->data);
2914 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2915 vcl_session_req_worker_update_handler (wrk, e->data);
2917 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2918 vcl_session_worker_update_reply_handler (wrk, e->data);
2920 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2921 vcl_session_app_add_segment_handler (wrk, e->data);
2923 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2924 vcl_session_app_del_segment_handler (wrk, e->data);
2926 case SESSION_CTRL_EVT_APP_WRK_RPC:
2927 vcl_worker_rpc_handler (wrk, e->data);
2930 VDBG (0, "unhandled: %u", e->event_type);
2936 events[*num_ev].data.u64 = session_evt_data;
2937 if (EPOLLONESHOT & session_events)
2939 session = vcl_session_get (wrk, sid);
2940 session->vep.ev.events = 0;
2947 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2948 struct epoll_event *events, u32 maxevents,
2949 double wait_for_time, u32 * num_ev)
2951 svm_msg_q_msg_t *msg;
2955 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2956 goto handle_dequeued;
2958 svm_msg_q_lock (mq);
2959 if (svm_msg_q_is_empty (mq))
2963 svm_msg_q_unlock (mq);
2966 else if (wait_for_time < 0)
2968 svm_msg_q_wait (mq);
2972 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2974 svm_msg_q_unlock (mq);
2979 ASSERT (maxevents > *num_ev);
2980 vcl_mq_dequeue_batch (wrk, mq, ~0);
2981 svm_msg_q_unlock (mq);
2984 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2986 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2987 e = svm_msg_q_msg_data (mq, msg);
2988 if (*num_ev < maxevents)
2989 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2991 vcl_handle_mq_event (wrk, e);
2992 svm_msg_q_free_msg (mq, msg);
2994 vec_reset_length (wrk->mq_msg_vector);
2995 vcl_handle_pending_wrk_updates (wrk);
3000 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
3001 int maxevents, u32 n_evts, double wait_for_time)
3003 double wait = 0, start = 0, now;
3007 wait = wait_for_time;
3008 start = clib_time_now (&wrk->clib_time);
3013 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
3020 now = clib_time_now (&wrk->clib_time);
3021 wait -= (now - start) * 1e3;
3030 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
3031 int maxevents, u32 n_evts, double wait_for_time)
3033 vcl_mq_evt_conn_t *mqc;
3034 int __clib_unused n_read;
3038 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
3040 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
3041 vec_len (wrk->mq_events), wait_for_time);
3042 for (i = 0; i < n_mq_evts; i++)
3044 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
3045 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
3046 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
3048 if (!n_evts && n_mq_evts > 0)
3051 return (int) n_evts;
3055 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3056 int maxevents, double wait_for_time)
3058 vcl_worker_t *wrk = vcl_worker_get_current ();
3059 vcl_session_t *vep_session;
3063 if (PREDICT_FALSE (maxevents <= 0))
3065 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3066 return VPPCOM_EINVAL;
3069 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3071 return VPPCOM_EBADFD;
3073 if (PREDICT_FALSE (!vep_session->is_vep))
3075 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3076 return VPPCOM_EINVAL;
3079 memset (events, 0, sizeof (*events) * maxevents);
3081 if (vec_len (wrk->unhandled_evts_vector))
3083 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3085 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3087 if (n_evts == maxevents)
3089 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3093 vec_reset_length (wrk->unhandled_evts_vector);
3096 if (vcm->cfg.use_mq_eventfd)
3097 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3100 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3105 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3106 void *buffer, uint32_t * buflen)
3108 vcl_worker_t *wrk = vcl_worker_get_current ();
3109 vcl_session_t *session;
3111 u32 *flags = buffer, tmp_flags = 0;
3112 vppcom_endpt_t *ep = buffer;
3114 session = vcl_session_get_w_handle (wrk, session_handle);
3116 return VPPCOM_EBADFD;
3120 case VPPCOM_ATTR_GET_NREAD:
3121 rv = vcl_session_read_ready (session);
3122 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3126 case VPPCOM_ATTR_GET_NWRITE:
3127 rv = vcl_session_write_ready (session);
3128 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3132 case VPPCOM_ATTR_GET_FLAGS:
3133 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3137 (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK) ?
3139 *buflen = sizeof (*flags);
3140 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3141 "is_nonblocking = %u", session_handle, *flags,
3142 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3148 case VPPCOM_ATTR_SET_FLAGS:
3149 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3151 if (*flags & O_NONBLOCK)
3152 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
3154 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
3156 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3157 " is_nonblocking = %u", session_handle, *flags,
3158 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3164 case VPPCOM_ATTR_GET_PEER_ADDR:
3165 if (PREDICT_TRUE (buffer && buflen &&
3166 (*buflen >= sizeof (*ep)) && ep->ip))
3168 ep->is_ip4 = session->transport.is_ip4;
3169 ep->port = session->transport.rmt_port;
3170 if (session->transport.is_ip4)
3171 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3172 sizeof (ip4_address_t));
3174 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3175 sizeof (ip6_address_t));
3176 *buflen = sizeof (*ep);
3177 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3178 "addr = %U, port %u", session_handle, ep->is_ip4,
3179 format_ip46_address, &session->transport.rmt_ip,
3180 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3181 clib_net_to_host_u16 (ep->port));
3187 case VPPCOM_ATTR_GET_LCL_ADDR:
3188 if (PREDICT_TRUE (buffer && buflen &&
3189 (*buflen >= sizeof (*ep)) && ep->ip))
3191 ep->is_ip4 = session->transport.is_ip4;
3192 ep->port = session->transport.lcl_port;
3193 if (session->transport.is_ip4)
3194 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3195 sizeof (ip4_address_t));
3197 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3198 sizeof (ip6_address_t));
3199 *buflen = sizeof (*ep);
3200 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3201 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3202 &session->transport.lcl_ip,
3203 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3204 clib_net_to_host_u16 (ep->port));
3210 case VPPCOM_ATTR_SET_LCL_ADDR:
3211 if (PREDICT_TRUE (buffer && buflen &&
3212 (*buflen >= sizeof (*ep)) && ep->ip))
3214 session->transport.is_ip4 = ep->is_ip4;
3215 session->transport.lcl_port = ep->port;
3216 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3217 *buflen = sizeof (*ep);
3218 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3219 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3220 &session->transport.lcl_ip,
3221 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3222 clib_net_to_host_u16 (ep->port));
3228 case VPPCOM_ATTR_GET_LIBC_EPFD:
3229 rv = session->libc_epfd;
3230 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3233 case VPPCOM_ATTR_SET_LIBC_EPFD:
3234 if (PREDICT_TRUE (buffer && buflen &&
3235 (*buflen == sizeof (session->libc_epfd))))
3237 session->libc_epfd = *(int *) buffer;
3238 *buflen = sizeof (session->libc_epfd);
3240 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3241 session->libc_epfd, *buflen);
3247 case VPPCOM_ATTR_GET_PROTOCOL:
3248 if (buffer && buflen && (*buflen >= sizeof (int)))
3250 *(int *) buffer = session->session_type;
3251 *buflen = sizeof (int);
3253 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3254 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3260 case VPPCOM_ATTR_GET_LISTEN:
3261 if (buffer && buflen && (*buflen >= sizeof (int)))
3263 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3264 VCL_SESS_ATTR_LISTEN);
3265 *buflen = sizeof (int);
3267 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3274 case VPPCOM_ATTR_GET_ERROR:
3275 if (buffer && buflen && (*buflen >= sizeof (int)))
3277 *(int *) buffer = 0;
3278 *buflen = sizeof (int);
3280 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3281 *(int *) buffer, *buflen);
3287 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3288 if (buffer && buflen && (*buflen >= sizeof (u32)))
3292 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3294 svm_fifo_size (session->tx_fifo) :
3295 vcm->cfg.tx_fifo_size);
3296 *buflen = sizeof (u32);
3298 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3299 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3306 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3307 if (buffer && buflen && (*buflen == sizeof (u32)))
3310 session->sndbuf_size = *(u32 *) buffer;
3311 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3312 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3319 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3320 if (buffer && buflen && (*buflen >= sizeof (u32)))
3324 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3326 svm_fifo_size (session->rx_fifo) :
3327 vcm->cfg.rx_fifo_size);
3328 *buflen = sizeof (u32);
3330 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3331 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3337 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3338 if (buffer && buflen && (*buflen == sizeof (u32)))
3341 session->rcvbuf_size = *(u32 *) buffer;
3342 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3343 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3350 case VPPCOM_ATTR_GET_REUSEADDR:
3351 if (buffer && buflen && (*buflen >= sizeof (int)))
3354 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3355 VCL_SESS_ATTR_REUSEADDR);
3356 *buflen = sizeof (int);
3358 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3359 *(int *) buffer, *buflen);
3365 case VPPCOM_ATTR_SET_REUSEADDR:
3366 if (buffer && buflen && (*buflen == sizeof (int)) &&
3367 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3370 if (*(int *) buffer)
3371 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
3373 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
3375 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3376 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEADDR),
3383 case VPPCOM_ATTR_GET_REUSEPORT:
3384 if (buffer && buflen && (*buflen >= sizeof (int)))
3387 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3388 VCL_SESS_ATTR_REUSEPORT);
3389 *buflen = sizeof (int);
3391 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3392 *(int *) buffer, *buflen);
3398 case VPPCOM_ATTR_SET_REUSEPORT:
3399 if (buffer && buflen && (*buflen == sizeof (int)) &&
3400 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3403 if (*(int *) buffer)
3404 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
3406 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
3408 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3409 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEPORT),
3416 case VPPCOM_ATTR_GET_BROADCAST:
3417 if (buffer && buflen && (*buflen >= sizeof (int)))
3420 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3421 VCL_SESS_ATTR_BROADCAST);
3422 *buflen = sizeof (int);
3424 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3425 *(int *) buffer, *buflen);
3431 case VPPCOM_ATTR_SET_BROADCAST:
3432 if (buffer && buflen && (*buflen == sizeof (int)))
3435 if (*(int *) buffer)
3436 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
3438 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
3440 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3441 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_BROADCAST),
3448 case VPPCOM_ATTR_GET_V6ONLY:
3449 if (buffer && buflen && (*buflen >= sizeof (int)))
3452 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3453 VCL_SESS_ATTR_V6ONLY);
3454 *buflen = sizeof (int);
3456 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3457 *(int *) buffer, *buflen);
3463 case VPPCOM_ATTR_SET_V6ONLY:
3464 if (buffer && buflen && (*buflen == sizeof (int)))
3467 if (*(int *) buffer)
3468 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
3470 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
3472 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3473 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_V6ONLY),
3480 case VPPCOM_ATTR_GET_KEEPALIVE:
3481 if (buffer && buflen && (*buflen >= sizeof (int)))
3484 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3485 VCL_SESS_ATTR_KEEPALIVE);
3486 *buflen = sizeof (int);
3488 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3489 *(int *) buffer, *buflen);
3495 case VPPCOM_ATTR_SET_KEEPALIVE:
3496 if (buffer && buflen && (*buflen == sizeof (int)))
3499 if (*(int *) buffer)
3500 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3502 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3504 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3505 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_KEEPALIVE),
3512 case VPPCOM_ATTR_GET_TCP_NODELAY:
3513 if (buffer && buflen && (*buflen >= sizeof (int)))
3516 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3517 VCL_SESS_ATTR_TCP_NODELAY);
3518 *buflen = sizeof (int);
3520 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3521 *(int *) buffer, *buflen);
3527 case VPPCOM_ATTR_SET_TCP_NODELAY:
3528 if (buffer && buflen && (*buflen == sizeof (int)))
3531 if (*(int *) buffer)
3532 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3534 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3536 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3537 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_NODELAY),
3544 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3545 if (buffer && buflen && (*buflen >= sizeof (int)))
3548 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3549 VCL_SESS_ATTR_TCP_KEEPIDLE);
3550 *buflen = sizeof (int);
3552 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3553 *(int *) buffer, *buflen);
3559 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3560 if (buffer && buflen && (*buflen == sizeof (int)))
3563 if (*(int *) buffer)
3564 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3566 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3568 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3569 VCL_SESS_ATTR_TEST (session->attr,
3570 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3576 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3577 if (buffer && buflen && (*buflen >= sizeof (int)))
3580 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3581 VCL_SESS_ATTR_TCP_KEEPINTVL);
3582 *buflen = sizeof (int);
3584 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3585 *(int *) buffer, *buflen);
3591 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3592 if (buffer && buflen && (*buflen == sizeof (int)))
3595 if (*(int *) buffer)
3596 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3598 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3600 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3601 VCL_SESS_ATTR_TEST (session->attr,
3602 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3608 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3609 if (buffer && buflen && (*buflen >= sizeof (u32)))
3612 *(u32 *) buffer = session->user_mss;
3613 *buflen = sizeof (int);
3615 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3616 *(int *) buffer, *buflen);
3622 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3623 if (buffer && buflen && (*buflen == sizeof (u32)))
3626 session->user_mss = *(u32 *) buffer;
3628 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3629 session->user_mss, *buflen);
3635 case VPPCOM_ATTR_SET_SHUT:
3636 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3637 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3638 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3639 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3642 case VPPCOM_ATTR_GET_SHUT:
3643 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3645 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3648 *(int *) buffer = SHUT_RD;
3649 else if (tmp_flags == 2)
3650 *(int *) buffer = SHUT_WR;
3651 else if (tmp_flags == 3)
3652 *(int *) buffer = SHUT_RDWR;
3653 *buflen = sizeof (int);
3656 case VPPCOM_ATTR_SET_CONNECTED:
3657 session->flags |= VCL_SESSION_F_CONNECTED;
3669 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3670 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3672 vcl_worker_t *wrk = vcl_worker_get_current ();
3673 vcl_session_t *session;
3677 rv = vppcom_session_read (session_handle, buffer, buflen);
3678 else if (flags & MSG_PEEK)
3679 rv = vppcom_session_peek (session_handle, buffer, buflen);
3682 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3683 return VPPCOM_EAFNOSUPPORT;
3688 session = vcl_session_get_w_handle (wrk, session_handle);
3689 if (session->transport.is_ip4)
3690 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3691 sizeof (ip4_address_t));
3693 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3694 sizeof (ip6_address_t));
3695 ep->is_ip4 = session->transport.is_ip4;
3696 ep->port = session->transport.rmt_port;
3703 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3704 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3706 vcl_worker_t *wrk = vcl_worker_get_current ();
3709 s = vcl_session_get_w_handle (wrk, session_handle);
3711 return VPPCOM_EBADFD;
3714 return VPPCOM_EINVAL;
3718 if (s->session_type != VPPCOM_PROTO_UDP
3719 || (s->flags & VCL_SESSION_F_CONNECTED))
3720 return VPPCOM_EINVAL;
3722 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3723 if (PREDICT_FALSE (s->session_state == STATE_CLOSED))
3725 vcl_send_session_connect (wrk, s);
3729 s->transport.is_ip4 = ep->is_ip4;
3730 s->transport.rmt_port = ep->port;
3731 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3737 // TBD check the flags and do the right thing
3738 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3741 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3742 s->is_dgram ? 1 : 0));
3746 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3748 vcl_worker_t *wrk = vcl_worker_get_current ();
3749 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3750 u32 i, keep_trying = 1;
3751 svm_msg_q_msg_t msg;
3755 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3758 return VPPCOM_EFAULT;
3762 vcl_session_t *session;
3764 /* Dequeue all events and drop all unhandled io events */
3765 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3767 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3768 vcl_handle_mq_event (wrk, e);
3769 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3771 vec_reset_length (wrk->unhandled_evts_vector);
3773 for (i = 0; i < n_sids; i++)
3775 session = vcl_session_get (wrk, vp[i].sh);
3778 vp[i].revents = POLLHUP;
3785 if (POLLIN & vp[i].events)
3787 rv = vcl_session_read_ready (session);
3790 vp[i].revents |= POLLIN;
3797 case VPPCOM_ECONNRESET:
3798 vp[i].revents = POLLHUP;
3802 vp[i].revents = POLLERR;
3809 if (POLLOUT & vp[i].events)
3811 rv = vcl_session_write_ready (session);
3814 vp[i].revents |= POLLOUT;
3821 case VPPCOM_ECONNRESET:
3822 vp[i].revents = POLLHUP;
3826 vp[i].revents = POLLERR;
3833 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3835 vp[i].revents = POLLNVAL;
3839 if (wait_for_time != -1)
3840 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3842 while ((num_ev == 0) && keep_trying);
3848 vppcom_mq_epoll_fd (void)
3850 vcl_worker_t *wrk = vcl_worker_get_current ();
3851 return wrk->mqs_epfd;
3855 vppcom_session_index (vcl_session_handle_t session_handle)
3857 return session_handle & 0xFFFFFF;
3861 vppcom_session_worker (vcl_session_handle_t session_handle)
3863 return session_handle >> 24;
3867 vppcom_worker_register (void)
3873 if (!vcl_worker_alloc_and_init ())
3874 return VPPCOM_EEXIST;
3876 wrk = vcl_worker_get_current ();
3877 wrk_name = format (0, "%s-wrk-%u", vcm->app_name, wrk->wrk_index);
3879 rv = vppcom_connect_to_vpp ((char *) wrk_name);
3880 vec_free (wrk_name);
3883 return VPPCOM_EFAULT;
3885 if (vcl_worker_register_with_vpp ())
3886 return VPPCOM_EEXIST;
3892 vppcom_worker_unregister (void)
3894 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3895 vcl_set_worker_index (~0);
3899 vppcom_worker_index_set (int index)
3901 vcl_set_worker_index (index);
3905 vppcom_worker_index (void)
3907 return vcl_get_worker_index ();
3911 vppcom_worker_mqs_epfd (void)
3913 vcl_worker_t *wrk = vcl_worker_get_current ();
3914 if (!vcm->cfg.use_mq_eventfd)
3916 return wrk->mqs_epfd;
3920 vppcom_session_is_connectable_listener (uint32_t session_handle)
3922 vcl_session_t *session;
3923 vcl_worker_t *wrk = vcl_worker_get_current ();
3924 session = vcl_session_get_w_handle (wrk, session_handle);
3926 return VPPCOM_EBADFD;
3927 return vcl_session_is_connectable_listener (wrk, session);
3931 vppcom_session_listener (uint32_t session_handle)
3933 vcl_worker_t *wrk = vcl_worker_get_current ();
3934 vcl_session_t *listen_session, *session;
3935 session = vcl_session_get_w_handle (wrk, session_handle);
3937 return VPPCOM_EBADFD;
3938 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3939 return VPPCOM_EBADFD;
3940 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3941 if (!listen_session)
3942 return VPPCOM_EBADFD;
3943 return vcl_session_handle (listen_session);
3947 vppcom_session_n_accepted (uint32_t session_handle)
3949 vcl_worker_t *wrk = vcl_worker_get_current ();
3950 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3952 return VPPCOM_EBADFD;
3953 return session->n_accepted_sessions;
3957 vppcom_proto_str (vppcom_proto_t proto)
3959 char const *proto_str;
3963 case VPPCOM_PROTO_TCP:
3966 case VPPCOM_PROTO_UDP:
3969 case VPPCOM_PROTO_TLS:
3972 case VPPCOM_PROTO_QUIC:
3976 proto_str = "UNKNOWN";
3983 vppcom_retval_str (int retval)
3994 st = "VPPCOM_EAGAIN";
3998 st = "VPPCOM_EFAULT";
4002 st = "VPPCOM_ENOMEM";
4006 st = "VPPCOM_EINVAL";
4010 st = "VPPCOM_EBADFD";
4013 case VPPCOM_EAFNOSUPPORT:
4014 st = "VPPCOM_EAFNOSUPPORT";
4017 case VPPCOM_ECONNABORTED:
4018 st = "VPPCOM_ECONNABORTED";
4021 case VPPCOM_ECONNRESET:
4022 st = "VPPCOM_ECONNRESET";
4025 case VPPCOM_ENOTCONN:
4026 st = "VPPCOM_ENOTCONN";
4029 case VPPCOM_ECONNREFUSED:
4030 st = "VPPCOM_ECONNREFUSED";
4033 case VPPCOM_ETIMEDOUT:
4034 st = "VPPCOM_ETIMEDOUT";
4038 st = "UNKNOWN_STATE";
4046 * fd.io coding-style-patch-verification: ON
4049 * eval: (c-set-style "gnu")