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))
1945 svm_fifo_unset_event (s->rx_fifo);
1946 if (!svm_fifo_is_empty_cons (rx_fifo)
1947 && svm_fifo_set_event (s->rx_fifo) && is_nonblocking)
1950 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1951 e->event_type = SESSION_IO_EVT_RX;
1952 e->session_index = s->session_index;
1956 /* Cut-through sessions might request tx notifications on rx fifos */
1957 if (PREDICT_FALSE (rx_fifo->want_deq_ntf))
1959 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1960 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1961 svm_fifo_reset_has_deq_ntf (s->rx_fifo);
1964 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1965 s->vpp_handle, n_read, rx_fifo);
1971 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1973 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1977 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1979 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1983 vppcom_session_read_segments (uint32_t session_handle,
1984 vppcom_data_segments_t ds)
1986 vcl_worker_t *wrk = vcl_worker_get_current ();
1987 int n_read = 0, is_nonblocking;
1988 vcl_session_t *s = 0;
1989 svm_fifo_t *rx_fifo;
1990 svm_msg_q_msg_t msg;
1995 s = vcl_session_get_w_handle (wrk, session_handle);
1996 if (PREDICT_FALSE (!s || s->is_vep))
1997 return VPPCOM_EBADFD;
1999 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2000 return vcl_session_closed_error (s);
2002 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
2003 is_ct = vcl_session_is_ct (s);
2004 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
2005 rx_fifo = s->rx_fifo;
2009 svm_fifo_unset_event (s->rx_fifo);
2011 if (svm_fifo_is_empty_cons (rx_fifo))
2015 svm_fifo_unset_event (rx_fifo);
2016 return VPPCOM_EWOULDBLOCK;
2018 while (svm_fifo_is_empty_cons (rx_fifo))
2020 if (vcl_session_is_closing (s))
2021 return vcl_session_closing_error (s);
2023 svm_fifo_unset_event (rx_fifo);
2024 svm_msg_q_lock (mq);
2025 if (svm_msg_q_is_empty (mq))
2026 svm_msg_q_wait (mq);
2028 svm_msg_q_sub_w_lock (mq, &msg);
2029 e = svm_msg_q_msg_data (mq, &msg);
2030 svm_msg_q_unlock (mq);
2031 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
2032 vcl_handle_mq_event (wrk, e);
2033 svm_msg_q_free_msg (mq, &msg);
2037 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_seg_t *) ds);
2038 svm_fifo_unset_event (rx_fifo);
2044 vppcom_session_free_segments (uint32_t session_handle,
2045 vppcom_data_segments_t ds)
2047 vcl_worker_t *wrk = vcl_worker_get_current ();
2050 s = vcl_session_get_w_handle (wrk, session_handle);
2051 if (PREDICT_FALSE (!s || s->is_vep))
2054 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_seg_t *) ds);
2058 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
2060 u32 first_copy = clib_min (ds[0].len, max_bytes);
2061 clib_memcpy_fast (buf, ds[0].data, first_copy);
2062 if (first_copy < max_bytes)
2064 clib_memcpy_fast (buf + first_copy, ds[1].data,
2065 clib_min (ds[1].len, max_bytes - first_copy));
2071 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
2073 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
2077 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2079 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2081 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2087 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2088 size_t n, u8 is_flush, u8 is_dgram)
2090 int n_write, is_nonblocking;
2091 session_evt_type_t et;
2092 svm_msg_q_msg_t msg;
2093 svm_fifo_t *tx_fifo;
2098 if (PREDICT_FALSE (!buf || n == 0))
2099 return VPPCOM_EINVAL;
2101 if (PREDICT_FALSE (s->is_vep))
2103 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2104 " session!", s->session_index, s->vpp_handle);
2105 return VPPCOM_EBADFD;
2108 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2110 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2111 s->session_index, s->vpp_handle, s->session_state,
2112 vppcom_session_state_str (s->session_state));
2113 return vcl_session_closed_error (s);;
2116 is_ct = vcl_session_is_ct (s);
2117 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2118 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
2120 mq = wrk->app_event_queue;
2121 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2125 return VPPCOM_EWOULDBLOCK;
2127 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2129 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2130 if (vcl_session_is_closing (s))
2131 return vcl_session_closing_error (s);
2132 svm_msg_q_lock (mq);
2133 if (svm_msg_q_is_empty (mq))
2134 svm_msg_q_wait (mq);
2136 svm_msg_q_sub_w_lock (mq, &msg);
2137 e = svm_msg_q_msg_data (mq, &msg);
2138 svm_msg_q_unlock (mq);
2140 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
2141 vcl_handle_mq_event (wrk, e);
2142 svm_msg_q_free_msg (mq, &msg);
2146 et = SESSION_IO_EVT_TX;
2147 if (is_flush && !is_ct)
2148 et = SESSION_IO_EVT_TX_FLUSH;
2151 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2152 s->vpp_evt_q, buf, n, et,
2153 0 /* do_evt */ , SVM_Q_WAIT);
2155 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2156 0 /* do_evt */ , SVM_Q_WAIT);
2158 if (svm_fifo_set_event (s->tx_fifo))
2159 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
2162 ASSERT (n_write > 0);
2164 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2165 s->vpp_handle, n_write);
2171 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2173 vcl_worker_t *wrk = vcl_worker_get_current ();
2176 s = vcl_session_get_w_handle (wrk, session_handle);
2177 if (PREDICT_FALSE (!s))
2178 return VPPCOM_EBADFD;
2180 return vppcom_session_write_inline (wrk, s, buf, n,
2181 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2185 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2187 vcl_worker_t *wrk = vcl_worker_get_current ();
2190 s = vcl_session_get_w_handle (wrk, session_handle);
2191 if (PREDICT_FALSE (!s))
2192 return VPPCOM_EBADFD;
2194 return vppcom_session_write_inline (wrk, s, buf, n,
2195 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2198 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2199 if (PREDICT_FALSE (!_s->rx_fifo)) \
2201 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2203 if (!vcl_session_is_ct (_s)) \
2205 svm_fifo_unset_event (_s->rx_fifo); \
2206 if (svm_fifo_is_empty (_s->rx_fifo)) \
2209 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2211 svm_fifo_unset_event (_s->rx_fifo); /* rx evts on actual fifo*/ \
2212 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2218 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2219 unsigned long n_bits, unsigned long *read_map,
2220 unsigned long *write_map,
2221 unsigned long *except_map, u32 * bits_set)
2223 session_disconnected_msg_t *disconnected_msg;
2224 session_connected_msg_t *connected_msg;
2225 vcl_session_t *session;
2228 switch (e->event_type)
2230 case SESSION_IO_EVT_RX:
2231 sid = e->session_index;
2232 session = vcl_session_get (wrk, sid);
2233 if (!session || !vcl_session_is_open (session))
2235 vcl_fifo_rx_evt_valid_or_break (session);
2236 if (sid < n_bits && read_map)
2238 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2242 case SESSION_IO_EVT_TX:
2243 sid = e->session_index;
2244 session = vcl_session_get (wrk, sid);
2245 if (!session || !vcl_session_is_open (session))
2247 if (sid < n_bits && write_map)
2249 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2253 case SESSION_CTRL_EVT_ACCEPTED:
2254 session = vcl_session_accepted (wrk,
2255 (session_accepted_msg_t *) e->data);
2258 sid = session->session_index;
2259 if (sid < n_bits && read_map)
2261 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2265 case SESSION_CTRL_EVT_CONNECTED:
2266 connected_msg = (session_connected_msg_t *) e->data;
2267 sid = vcl_session_connected_handler (wrk, connected_msg);
2268 if (sid == VCL_INVALID_SESSION_INDEX)
2270 if (sid < n_bits && write_map)
2272 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2276 case SESSION_CTRL_EVT_DISCONNECTED:
2277 disconnected_msg = (session_disconnected_msg_t *) e->data;
2278 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2281 sid = session->session_index;
2282 if (sid < n_bits && except_map)
2284 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2288 case SESSION_CTRL_EVT_RESET:
2289 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2290 if (sid < n_bits && except_map)
2292 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2296 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2297 vcl_session_unlisten_reply_handler (wrk, e->data);
2299 case SESSION_CTRL_EVT_MIGRATED:
2300 vcl_session_migrated_handler (wrk, e->data);
2302 case SESSION_CTRL_EVT_CLEANUP:
2303 vcl_session_cleanup_handler (wrk, e->data);
2305 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2306 vcl_session_worker_update_reply_handler (wrk, e->data);
2308 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2309 vcl_session_req_worker_update_handler (wrk, e->data);
2311 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2312 vcl_session_app_add_segment_handler (wrk, e->data);
2314 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2315 vcl_session_app_del_segment_handler (wrk, e->data);
2317 case SESSION_CTRL_EVT_APP_WRK_RPC:
2318 vcl_worker_rpc_handler (wrk, e->data);
2321 clib_warning ("unhandled: %u", e->event_type);
2327 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2328 unsigned long n_bits, unsigned long *read_map,
2329 unsigned long *write_map, unsigned long *except_map,
2330 double time_to_wait, u32 * bits_set)
2332 svm_msg_q_msg_t *msg;
2336 svm_msg_q_lock (mq);
2337 if (svm_msg_q_is_empty (mq))
2341 svm_msg_q_unlock (mq);
2347 svm_msg_q_unlock (mq);
2350 else if (time_to_wait < 0)
2352 svm_msg_q_wait (mq);
2356 if (svm_msg_q_timedwait (mq, time_to_wait))
2358 svm_msg_q_unlock (mq);
2363 vcl_mq_dequeue_batch (wrk, mq, ~0);
2364 svm_msg_q_unlock (mq);
2366 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2368 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2369 e = svm_msg_q_msg_data (mq, msg);
2370 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2371 except_map, bits_set);
2372 svm_msg_q_free_msg (mq, msg);
2374 vec_reset_length (wrk->mq_msg_vector);
2375 vcl_handle_pending_wrk_updates (wrk);
2380 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2381 vcl_si_set * read_map, vcl_si_set * write_map,
2382 vcl_si_set * except_map, double time_to_wait,
2385 double wait = 0, start = 0;
2389 wait = time_to_wait;
2390 start = clib_time_now (&wrk->clib_time);
2395 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2396 write_map, except_map, wait, bits_set);
2402 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2410 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2411 vcl_si_set * read_map, vcl_si_set * write_map,
2412 vcl_si_set * except_map, double time_to_wait,
2415 vcl_mq_evt_conn_t *mqc;
2416 int __clib_unused n_read;
2420 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2421 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2422 vec_len (wrk->mq_events), time_to_wait);
2423 for (i = 0; i < n_mq_evts; i++)
2425 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2426 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2427 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2428 except_map, 0, bits_set);
2431 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2435 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2436 vcl_si_set * except_map, double time_to_wait)
2438 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2439 vcl_worker_t *wrk = vcl_worker_get_current ();
2440 vcl_session_t *session = 0;
2443 if (n_bits && read_map)
2445 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2446 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2447 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2448 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2450 if (n_bits && write_map)
2452 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2453 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2454 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2455 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2457 if (n_bits && except_map)
2459 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2460 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2461 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2462 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2472 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2473 if (!(session = vcl_session_get (wrk, sid)))
2475 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2480 if (vcl_session_write_ready (session))
2482 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2486 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2493 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2494 if (!(session = vcl_session_get (wrk, sid)))
2496 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2501 if (vcl_session_read_ready (session))
2503 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2511 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2513 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2514 read_map, write_map, except_map, &bits_set);
2516 vec_reset_length (wrk->unhandled_evts_vector);
2518 if (vcm->cfg.use_mq_eventfd)
2519 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2520 time_to_wait, &bits_set);
2522 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2523 time_to_wait, &bits_set);
2529 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2531 vcl_session_t *session;
2532 vppcom_epoll_t *vep;
2533 u32 sh = vep_handle;
2535 if (VPPCOM_DEBUG <= 2)
2538 session = vcl_session_get_w_handle (wrk, vep_handle);
2539 if (PREDICT_FALSE (!session))
2541 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2544 if (PREDICT_FALSE (!session->is_vep))
2546 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2549 vep = &session->vep;
2550 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2553 " is_vep_session = %u\n"
2554 " next_sh = 0x%x (%u)\n"
2555 "}\n", vep_handle, session->is_vep, session->is_vep_session,
2556 vep->next_sh, vep->next_sh);
2558 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2560 session = vcl_session_get_w_handle (wrk, sh);
2561 if (PREDICT_FALSE (!session))
2563 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2566 if (PREDICT_FALSE (session->is_vep))
2568 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2570 else if (PREDICT_FALSE (!session->is_vep_session))
2572 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2575 vep = &session->vep;
2576 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2577 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2578 sh, session->vep.vep_sh, vep_handle);
2579 if (session->is_vep_session)
2581 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2583 " next_sh = 0x%x (%u)\n"
2584 " prev_sh = 0x%x (%u)\n"
2585 " vep_sh = 0x%x (%u)\n"
2586 " ev.events = 0x%x\n"
2587 " ev.data.u64 = 0x%llx\n"
2590 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2591 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2592 vep->ev.data.u64, vep->et_mask);
2597 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2601 vppcom_epoll_create (void)
2603 vcl_worker_t *wrk = vcl_worker_get_current ();
2604 vcl_session_t *vep_session;
2606 vep_session = vcl_session_alloc (wrk);
2608 vep_session->is_vep = 1;
2609 vep_session->vep.vep_sh = ~0;
2610 vep_session->vep.next_sh = ~0;
2611 vep_session->vep.prev_sh = ~0;
2612 vep_session->vpp_handle = ~0;
2614 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2615 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2617 return vcl_session_handle (vep_session);
2621 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2622 struct epoll_event *event)
2624 vcl_worker_t *wrk = vcl_worker_get_current ();
2625 vcl_session_t *vep_session;
2626 vcl_session_t *session;
2629 if (vep_handle == session_handle)
2631 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2632 return VPPCOM_EINVAL;
2635 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2636 if (PREDICT_FALSE (!vep_session))
2638 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2639 return VPPCOM_EBADFD;
2641 if (PREDICT_FALSE (!vep_session->is_vep))
2643 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2644 return VPPCOM_EINVAL;
2647 ASSERT (vep_session->vep.vep_sh == ~0);
2648 ASSERT (vep_session->vep.prev_sh == ~0);
2650 session = vcl_session_get_w_handle (wrk, session_handle);
2651 if (PREDICT_FALSE (!session))
2653 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2654 return VPPCOM_EBADFD;
2656 if (PREDICT_FALSE (session->is_vep))
2658 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2659 return VPPCOM_EINVAL;
2665 if (PREDICT_FALSE (!event))
2667 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2668 return VPPCOM_EINVAL;
2670 if (vep_session->vep.next_sh != ~0)
2672 vcl_session_t *next_session;
2673 next_session = vcl_session_get_w_handle (wrk,
2674 vep_session->vep.next_sh);
2675 if (PREDICT_FALSE (!next_session))
2677 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2678 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2679 return VPPCOM_EBADFD;
2681 ASSERT (next_session->vep.prev_sh == vep_handle);
2682 next_session->vep.prev_sh = session_handle;
2684 session->vep.next_sh = vep_session->vep.next_sh;
2685 session->vep.prev_sh = vep_handle;
2686 session->vep.vep_sh = vep_handle;
2687 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2688 session->vep.ev = *event;
2689 session->is_vep = 0;
2690 session->is_vep_session = 1;
2691 vep_session->vep.next_sh = session_handle;
2693 if (session->tx_fifo)
2694 svm_fifo_add_want_deq_ntf (session->tx_fifo,
2695 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2697 /* Generate EPOLLOUT if tx fifo not full */
2698 if ((event->events & EPOLLOUT) &&
2699 (vcl_session_write_ready (session) > 0))
2701 session_event_t e = { 0 };
2702 e.event_type = SESSION_IO_EVT_TX;
2703 e.session_index = session->session_index;
2704 vec_add1 (wrk->unhandled_evts_vector, e);
2706 /* Generate EPOLLIN if rx fifo has data */
2707 if ((event->events & EPOLLIN) && (vcl_session_read_ready (session) > 0))
2709 session_event_t e = { 0 };
2710 e.event_type = SESSION_IO_EVT_RX;
2711 e.session_index = session->session_index;
2712 vec_add1 (wrk->unhandled_evts_vector, e);
2714 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2715 vep_handle, session_handle, event->events, event->data.u64);
2716 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2720 if (PREDICT_FALSE (!event))
2722 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2726 else if (PREDICT_FALSE (!session->is_vep_session))
2728 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2732 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2734 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2735 session_handle, session->vep.vep_sh, vep_handle);
2740 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2741 if ((event->events & EPOLLOUT) &&
2742 !(session->vep.ev.events & EPOLLOUT) &&
2743 (vcl_session_write_ready (session) > 0))
2745 session_event_t e = { 0 };
2746 e.event_type = SESSION_IO_EVT_TX;
2747 e.session_index = session->session_index;
2748 vec_add1 (wrk->unhandled_evts_vector, e);
2750 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2751 session->vep.ev = *event;
2752 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2753 vep_handle, session_handle, event->events, event->data.u64);
2757 if (PREDICT_FALSE (!session->is_vep_session))
2759 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2763 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2765 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2766 session_handle, session->vep.vep_sh, vep_handle);
2771 if (session->vep.prev_sh == vep_handle)
2772 vep_session->vep.next_sh = session->vep.next_sh;
2775 vcl_session_t *prev_session;
2776 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2777 if (PREDICT_FALSE (!prev_session))
2779 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2780 session->vep.prev_sh, session_handle);
2781 return VPPCOM_EBADFD;
2783 ASSERT (prev_session->vep.next_sh == session_handle);
2784 prev_session->vep.next_sh = session->vep.next_sh;
2786 if (session->vep.next_sh != ~0)
2788 vcl_session_t *next_session;
2789 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2790 if (PREDICT_FALSE (!next_session))
2792 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2793 session->vep.next_sh, session_handle);
2794 return VPPCOM_EBADFD;
2796 ASSERT (next_session->vep.prev_sh == session_handle);
2797 next_session->vep.prev_sh = session->vep.prev_sh;
2800 memset (&session->vep, 0, sizeof (session->vep));
2801 session->vep.next_sh = ~0;
2802 session->vep.prev_sh = ~0;
2803 session->vep.vep_sh = ~0;
2804 session->is_vep_session = 0;
2806 if (session->tx_fifo)
2807 svm_fifo_del_want_deq_ntf (session->tx_fifo, SVM_FIFO_NO_DEQ_NOTIF);
2809 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2811 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2815 VDBG (0, "Invalid operation (%d)!", op);
2819 vep_verify_epoll_chain (wrk, vep_handle);
2826 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2827 struct epoll_event *events, u32 * num_ev)
2829 session_disconnected_msg_t *disconnected_msg;
2830 session_connected_msg_t *connected_msg;
2831 u32 sid = ~0, session_events;
2832 u64 session_evt_data = ~0;
2833 vcl_session_t *session;
2836 switch (e->event_type)
2838 case SESSION_IO_EVT_RX:
2839 sid = e->session_index;
2840 session = vcl_session_get (wrk, sid);
2841 if (vcl_session_is_closed (session))
2843 vcl_fifo_rx_evt_valid_or_break (session);
2844 session_events = session->vep.ev.events;
2845 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2848 events[*num_ev].events |= EPOLLIN;
2849 session_evt_data = session->vep.ev.data.u64;
2850 session->has_rx_evt = 1;
2852 case SESSION_IO_EVT_TX:
2853 sid = e->session_index;
2854 session = vcl_session_get (wrk, sid);
2855 if (vcl_session_is_closed (session))
2857 session_events = session->vep.ev.events;
2858 if (!(EPOLLOUT & session_events))
2861 events[*num_ev].events |= EPOLLOUT;
2862 session_evt_data = session->vep.ev.data.u64;
2863 svm_fifo_reset_has_deq_ntf (session->tx_fifo);
2865 case SESSION_CTRL_EVT_ACCEPTED:
2866 session = vcl_session_accepted (wrk,
2867 (session_accepted_msg_t *) e->data);
2871 session_events = session->vep.ev.events;
2872 if (!(EPOLLIN & session_events))
2876 events[*num_ev].events |= EPOLLIN;
2877 session_evt_data = session->vep.ev.data.u64;
2879 case SESSION_CTRL_EVT_CONNECTED:
2880 connected_msg = (session_connected_msg_t *) e->data;
2881 sid = vcl_session_connected_handler (wrk, connected_msg);
2882 /* Generate EPOLLOUT because there's no connected event */
2883 session = vcl_session_get (wrk, sid);
2884 if (vcl_session_is_closed (session))
2886 session_events = session->vep.ev.events;
2887 if (!(EPOLLOUT & session_events))
2890 events[*num_ev].events |= EPOLLOUT;
2891 session_evt_data = session->vep.ev.data.u64;
2892 if (session->session_state & STATE_DETACHED)
2893 events[*num_ev].events |= EPOLLHUP;
2895 case SESSION_CTRL_EVT_DISCONNECTED:
2896 disconnected_msg = (session_disconnected_msg_t *) e->data;
2897 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
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_RESET:
2906 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2907 session = vcl_session_get (wrk, sid);
2908 if (vcl_session_is_closed (session))
2910 session_events = session->vep.ev.events;
2912 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2913 session_evt_data = session->vep.ev.data.u64;
2915 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2916 vcl_session_unlisten_reply_handler (wrk, e->data);
2918 case SESSION_CTRL_EVT_MIGRATED:
2919 vcl_session_migrated_handler (wrk, e->data);
2921 case SESSION_CTRL_EVT_CLEANUP:
2922 vcl_session_cleanup_handler (wrk, e->data);
2924 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2925 vcl_session_req_worker_update_handler (wrk, e->data);
2927 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2928 vcl_session_worker_update_reply_handler (wrk, e->data);
2930 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2931 vcl_session_app_add_segment_handler (wrk, e->data);
2933 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2934 vcl_session_app_del_segment_handler (wrk, e->data);
2936 case SESSION_CTRL_EVT_APP_WRK_RPC:
2937 vcl_worker_rpc_handler (wrk, e->data);
2940 VDBG (0, "unhandled: %u", e->event_type);
2946 events[*num_ev].data.u64 = session_evt_data;
2947 if (EPOLLONESHOT & session_events)
2949 session = vcl_session_get (wrk, sid);
2950 session->vep.ev.events = 0;
2957 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2958 struct epoll_event *events, u32 maxevents,
2959 double wait_for_time, u32 * num_ev)
2961 svm_msg_q_msg_t *msg;
2965 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2966 goto handle_dequeued;
2968 svm_msg_q_lock (mq);
2969 if (svm_msg_q_is_empty (mq))
2973 svm_msg_q_unlock (mq);
2976 else if (wait_for_time < 0)
2978 svm_msg_q_wait (mq);
2982 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2984 svm_msg_q_unlock (mq);
2989 ASSERT (maxevents > *num_ev);
2990 vcl_mq_dequeue_batch (wrk, mq, ~0);
2991 svm_msg_q_unlock (mq);
2994 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2996 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2997 e = svm_msg_q_msg_data (mq, msg);
2998 if (*num_ev < maxevents)
2999 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
3001 vcl_handle_mq_event (wrk, e);
3002 svm_msg_q_free_msg (mq, msg);
3004 vec_reset_length (wrk->mq_msg_vector);
3005 vcl_handle_pending_wrk_updates (wrk);
3010 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
3011 int maxevents, u32 n_evts, double wait_for_time)
3013 double wait = 0, start = 0, now;
3017 wait = wait_for_time;
3018 start = clib_time_now (&wrk->clib_time);
3023 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
3030 now = clib_time_now (&wrk->clib_time);
3031 wait -= (now - start) * 1e3;
3040 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
3041 int maxevents, u32 n_evts, double wait_for_time)
3043 vcl_mq_evt_conn_t *mqc;
3044 int __clib_unused n_read;
3048 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
3050 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
3051 vec_len (wrk->mq_events), wait_for_time);
3052 for (i = 0; i < n_mq_evts; i++)
3054 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
3055 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
3056 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
3058 if (!n_evts && n_mq_evts > 0)
3061 return (int) n_evts;
3065 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3066 int maxevents, double wait_for_time)
3068 vcl_worker_t *wrk = vcl_worker_get_current ();
3069 vcl_session_t *vep_session;
3073 if (PREDICT_FALSE (maxevents <= 0))
3075 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3076 return VPPCOM_EINVAL;
3079 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3081 return VPPCOM_EBADFD;
3083 if (PREDICT_FALSE (!vep_session->is_vep))
3085 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3086 return VPPCOM_EINVAL;
3089 memset (events, 0, sizeof (*events) * maxevents);
3091 if (vec_len (wrk->unhandled_evts_vector))
3093 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3095 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3097 if (n_evts == maxevents)
3099 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3103 vec_reset_length (wrk->unhandled_evts_vector);
3106 if (vcm->cfg.use_mq_eventfd)
3107 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3110 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3115 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3116 void *buffer, uint32_t * buflen)
3118 vcl_worker_t *wrk = vcl_worker_get_current ();
3119 vcl_session_t *session;
3121 u32 *flags = buffer, tmp_flags = 0;
3122 vppcom_endpt_t *ep = buffer;
3124 session = vcl_session_get_w_handle (wrk, session_handle);
3126 return VPPCOM_EBADFD;
3130 case VPPCOM_ATTR_GET_NREAD:
3131 rv = vcl_session_read_ready (session);
3132 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3136 case VPPCOM_ATTR_GET_NWRITE:
3137 rv = vcl_session_write_ready (session);
3138 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3142 case VPPCOM_ATTR_GET_FLAGS:
3143 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3147 (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK) ?
3149 *buflen = sizeof (*flags);
3150 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3151 "is_nonblocking = %u", session_handle, *flags,
3152 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3158 case VPPCOM_ATTR_SET_FLAGS:
3159 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3161 if (*flags & O_NONBLOCK)
3162 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
3164 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
3166 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3167 " is_nonblocking = %u", session_handle, *flags,
3168 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3174 case VPPCOM_ATTR_GET_PEER_ADDR:
3175 if (PREDICT_TRUE (buffer && buflen &&
3176 (*buflen >= sizeof (*ep)) && ep->ip))
3178 ep->is_ip4 = session->transport.is_ip4;
3179 ep->port = session->transport.rmt_port;
3180 if (session->transport.is_ip4)
3181 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3182 sizeof (ip4_address_t));
3184 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3185 sizeof (ip6_address_t));
3186 *buflen = sizeof (*ep);
3187 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3188 "addr = %U, port %u", session_handle, ep->is_ip4,
3189 format_ip46_address, &session->transport.rmt_ip,
3190 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3191 clib_net_to_host_u16 (ep->port));
3197 case VPPCOM_ATTR_GET_LCL_ADDR:
3198 if (PREDICT_TRUE (buffer && buflen &&
3199 (*buflen >= sizeof (*ep)) && ep->ip))
3201 ep->is_ip4 = session->transport.is_ip4;
3202 ep->port = session->transport.lcl_port;
3203 if (session->transport.is_ip4)
3204 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3205 sizeof (ip4_address_t));
3207 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3208 sizeof (ip6_address_t));
3209 *buflen = sizeof (*ep);
3210 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3211 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3212 &session->transport.lcl_ip,
3213 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3214 clib_net_to_host_u16 (ep->port));
3220 case VPPCOM_ATTR_SET_LCL_ADDR:
3221 if (PREDICT_TRUE (buffer && buflen &&
3222 (*buflen >= sizeof (*ep)) && ep->ip))
3224 session->transport.is_ip4 = ep->is_ip4;
3225 session->transport.lcl_port = ep->port;
3226 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3227 *buflen = sizeof (*ep);
3228 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3229 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3230 &session->transport.lcl_ip,
3231 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3232 clib_net_to_host_u16 (ep->port));
3238 case VPPCOM_ATTR_GET_LIBC_EPFD:
3239 rv = session->libc_epfd;
3240 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3243 case VPPCOM_ATTR_SET_LIBC_EPFD:
3244 if (PREDICT_TRUE (buffer && buflen &&
3245 (*buflen == sizeof (session->libc_epfd))))
3247 session->libc_epfd = *(int *) buffer;
3248 *buflen = sizeof (session->libc_epfd);
3250 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3251 session->libc_epfd, *buflen);
3257 case VPPCOM_ATTR_GET_PROTOCOL:
3258 if (buffer && buflen && (*buflen >= sizeof (int)))
3260 *(int *) buffer = session->session_type;
3261 *buflen = sizeof (int);
3263 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3264 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3270 case VPPCOM_ATTR_GET_LISTEN:
3271 if (buffer && buflen && (*buflen >= sizeof (int)))
3273 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3274 VCL_SESS_ATTR_LISTEN);
3275 *buflen = sizeof (int);
3277 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3284 case VPPCOM_ATTR_GET_ERROR:
3285 if (buffer && buflen && (*buflen >= sizeof (int)))
3287 *(int *) buffer = 0;
3288 *buflen = sizeof (int);
3290 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3291 *(int *) buffer, *buflen);
3297 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3298 if (buffer && buflen && (*buflen >= sizeof (u32)))
3302 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3304 svm_fifo_size (session->tx_fifo) :
3305 vcm->cfg.tx_fifo_size);
3306 *buflen = sizeof (u32);
3308 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3309 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3316 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3317 if (buffer && buflen && (*buflen == sizeof (u32)))
3320 session->sndbuf_size = *(u32 *) buffer;
3321 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3322 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3329 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3330 if (buffer && buflen && (*buflen >= sizeof (u32)))
3334 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3336 svm_fifo_size (session->rx_fifo) :
3337 vcm->cfg.rx_fifo_size);
3338 *buflen = sizeof (u32);
3340 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3341 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3347 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3348 if (buffer && buflen && (*buflen == sizeof (u32)))
3351 session->rcvbuf_size = *(u32 *) buffer;
3352 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3353 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3360 case VPPCOM_ATTR_GET_REUSEADDR:
3361 if (buffer && buflen && (*buflen >= sizeof (int)))
3364 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3365 VCL_SESS_ATTR_REUSEADDR);
3366 *buflen = sizeof (int);
3368 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3369 *(int *) buffer, *buflen);
3375 case VPPCOM_ATTR_SET_REUSEADDR:
3376 if (buffer && buflen && (*buflen == sizeof (int)) &&
3377 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3380 if (*(int *) buffer)
3381 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
3383 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
3385 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3386 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEADDR),
3393 case VPPCOM_ATTR_GET_REUSEPORT:
3394 if (buffer && buflen && (*buflen >= sizeof (int)))
3397 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3398 VCL_SESS_ATTR_REUSEPORT);
3399 *buflen = sizeof (int);
3401 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3402 *(int *) buffer, *buflen);
3408 case VPPCOM_ATTR_SET_REUSEPORT:
3409 if (buffer && buflen && (*buflen == sizeof (int)) &&
3410 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3413 if (*(int *) buffer)
3414 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
3416 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
3418 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3419 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEPORT),
3426 case VPPCOM_ATTR_GET_BROADCAST:
3427 if (buffer && buflen && (*buflen >= sizeof (int)))
3430 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3431 VCL_SESS_ATTR_BROADCAST);
3432 *buflen = sizeof (int);
3434 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3435 *(int *) buffer, *buflen);
3441 case VPPCOM_ATTR_SET_BROADCAST:
3442 if (buffer && buflen && (*buflen == sizeof (int)))
3445 if (*(int *) buffer)
3446 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
3448 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
3450 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3451 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_BROADCAST),
3458 case VPPCOM_ATTR_GET_V6ONLY:
3459 if (buffer && buflen && (*buflen >= sizeof (int)))
3462 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3463 VCL_SESS_ATTR_V6ONLY);
3464 *buflen = sizeof (int);
3466 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3467 *(int *) buffer, *buflen);
3473 case VPPCOM_ATTR_SET_V6ONLY:
3474 if (buffer && buflen && (*buflen == sizeof (int)))
3477 if (*(int *) buffer)
3478 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
3480 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
3482 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3483 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_V6ONLY),
3490 case VPPCOM_ATTR_GET_KEEPALIVE:
3491 if (buffer && buflen && (*buflen >= sizeof (int)))
3494 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3495 VCL_SESS_ATTR_KEEPALIVE);
3496 *buflen = sizeof (int);
3498 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3499 *(int *) buffer, *buflen);
3505 case VPPCOM_ATTR_SET_KEEPALIVE:
3506 if (buffer && buflen && (*buflen == sizeof (int)))
3509 if (*(int *) buffer)
3510 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3512 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3514 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3515 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_KEEPALIVE),
3522 case VPPCOM_ATTR_GET_TCP_NODELAY:
3523 if (buffer && buflen && (*buflen >= sizeof (int)))
3526 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3527 VCL_SESS_ATTR_TCP_NODELAY);
3528 *buflen = sizeof (int);
3530 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3531 *(int *) buffer, *buflen);
3537 case VPPCOM_ATTR_SET_TCP_NODELAY:
3538 if (buffer && buflen && (*buflen == sizeof (int)))
3541 if (*(int *) buffer)
3542 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3544 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3546 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3547 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_NODELAY),
3554 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3555 if (buffer && buflen && (*buflen >= sizeof (int)))
3558 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3559 VCL_SESS_ATTR_TCP_KEEPIDLE);
3560 *buflen = sizeof (int);
3562 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3563 *(int *) buffer, *buflen);
3569 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3570 if (buffer && buflen && (*buflen == sizeof (int)))
3573 if (*(int *) buffer)
3574 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3576 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3578 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3579 VCL_SESS_ATTR_TEST (session->attr,
3580 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3586 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3587 if (buffer && buflen && (*buflen >= sizeof (int)))
3590 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3591 VCL_SESS_ATTR_TCP_KEEPINTVL);
3592 *buflen = sizeof (int);
3594 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3595 *(int *) buffer, *buflen);
3601 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3602 if (buffer && buflen && (*buflen == sizeof (int)))
3605 if (*(int *) buffer)
3606 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3608 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3610 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3611 VCL_SESS_ATTR_TEST (session->attr,
3612 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3618 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3619 if (buffer && buflen && (*buflen >= sizeof (u32)))
3622 *(u32 *) buffer = session->user_mss;
3623 *buflen = sizeof (int);
3625 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3626 *(int *) buffer, *buflen);
3632 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3633 if (buffer && buflen && (*buflen == sizeof (u32)))
3636 session->user_mss = *(u32 *) buffer;
3638 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3639 session->user_mss, *buflen);
3645 case VPPCOM_ATTR_SET_SHUT:
3646 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3647 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3648 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3649 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3652 case VPPCOM_ATTR_GET_SHUT:
3653 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3655 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3658 *(int *) buffer = SHUT_RD;
3659 else if (tmp_flags == 2)
3660 *(int *) buffer = SHUT_WR;
3661 else if (tmp_flags == 3)
3662 *(int *) buffer = SHUT_RDWR;
3663 *buflen = sizeof (int);
3666 case VPPCOM_ATTR_SET_CONNECTED:
3667 session->flags |= VCL_SESSION_F_CONNECTED;
3679 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3680 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3682 vcl_worker_t *wrk = vcl_worker_get_current ();
3683 vcl_session_t *session;
3687 rv = vppcom_session_read (session_handle, buffer, buflen);
3688 else if (flags & MSG_PEEK)
3689 rv = vppcom_session_peek (session_handle, buffer, buflen);
3692 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3693 return VPPCOM_EAFNOSUPPORT;
3698 session = vcl_session_get_w_handle (wrk, session_handle);
3699 if (session->transport.is_ip4)
3700 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3701 sizeof (ip4_address_t));
3703 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3704 sizeof (ip6_address_t));
3705 ep->is_ip4 = session->transport.is_ip4;
3706 ep->port = session->transport.rmt_port;
3713 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3714 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3716 vcl_worker_t *wrk = vcl_worker_get_current ();
3719 s = vcl_session_get_w_handle (wrk, session_handle);
3721 return VPPCOM_EBADFD;
3724 return VPPCOM_EINVAL;
3728 if (s->session_type != VPPCOM_PROTO_UDP
3729 || (s->flags & VCL_SESSION_F_CONNECTED))
3730 return VPPCOM_EINVAL;
3732 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3733 if (PREDICT_FALSE (s->session_state == STATE_CLOSED))
3735 vcl_send_session_connect (wrk, s);
3739 s->transport.is_ip4 = ep->is_ip4;
3740 s->transport.rmt_port = ep->port;
3741 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3747 // TBD check the flags and do the right thing
3748 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3751 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3752 s->is_dgram ? 1 : 0));
3756 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3758 vcl_worker_t *wrk = vcl_worker_get_current ();
3759 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3760 u32 i, keep_trying = 1;
3761 svm_msg_q_msg_t msg;
3765 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3768 return VPPCOM_EFAULT;
3772 vcl_session_t *session;
3774 /* Dequeue all events and drop all unhandled io events */
3775 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3777 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3778 vcl_handle_mq_event (wrk, e);
3779 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3781 vec_reset_length (wrk->unhandled_evts_vector);
3783 for (i = 0; i < n_sids; i++)
3785 session = vcl_session_get (wrk, vp[i].sh);
3788 vp[i].revents = POLLHUP;
3795 if (POLLIN & vp[i].events)
3797 rv = vcl_session_read_ready (session);
3800 vp[i].revents |= POLLIN;
3807 case VPPCOM_ECONNRESET:
3808 vp[i].revents = POLLHUP;
3812 vp[i].revents = POLLERR;
3819 if (POLLOUT & vp[i].events)
3821 rv = vcl_session_write_ready (session);
3824 vp[i].revents |= POLLOUT;
3831 case VPPCOM_ECONNRESET:
3832 vp[i].revents = POLLHUP;
3836 vp[i].revents = POLLERR;
3843 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3845 vp[i].revents = POLLNVAL;
3849 if (wait_for_time != -1)
3850 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3852 while ((num_ev == 0) && keep_trying);
3858 vppcom_mq_epoll_fd (void)
3860 vcl_worker_t *wrk = vcl_worker_get_current ();
3861 return wrk->mqs_epfd;
3865 vppcom_session_index (vcl_session_handle_t session_handle)
3867 return session_handle & 0xFFFFFF;
3871 vppcom_session_worker (vcl_session_handle_t session_handle)
3873 return session_handle >> 24;
3877 vppcom_worker_register (void)
3883 if (!vcl_worker_alloc_and_init ())
3884 return VPPCOM_EEXIST;
3886 wrk = vcl_worker_get_current ();
3887 wrk_name = format (0, "%s-wrk-%u", vcm->app_name, wrk->wrk_index);
3889 rv = vppcom_connect_to_vpp ((char *) wrk_name);
3890 vec_free (wrk_name);
3893 return VPPCOM_EFAULT;
3895 if (vcl_worker_register_with_vpp ())
3896 return VPPCOM_EEXIST;
3902 vppcom_worker_unregister (void)
3904 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3905 vcl_set_worker_index (~0);
3909 vppcom_worker_index_set (int index)
3911 vcl_set_worker_index (index);
3915 vppcom_worker_index (void)
3917 return vcl_get_worker_index ();
3921 vppcom_worker_mqs_epfd (void)
3923 vcl_worker_t *wrk = vcl_worker_get_current ();
3924 if (!vcm->cfg.use_mq_eventfd)
3926 return wrk->mqs_epfd;
3930 vppcom_session_is_connectable_listener (uint32_t session_handle)
3932 vcl_session_t *session;
3933 vcl_worker_t *wrk = vcl_worker_get_current ();
3934 session = vcl_session_get_w_handle (wrk, session_handle);
3936 return VPPCOM_EBADFD;
3937 return vcl_session_is_connectable_listener (wrk, session);
3941 vppcom_session_listener (uint32_t session_handle)
3943 vcl_worker_t *wrk = vcl_worker_get_current ();
3944 vcl_session_t *listen_session, *session;
3945 session = vcl_session_get_w_handle (wrk, session_handle);
3947 return VPPCOM_EBADFD;
3948 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3949 return VPPCOM_EBADFD;
3950 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3951 if (!listen_session)
3952 return VPPCOM_EBADFD;
3953 return vcl_session_handle (listen_session);
3957 vppcom_session_n_accepted (uint32_t session_handle)
3959 vcl_worker_t *wrk = vcl_worker_get_current ();
3960 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3962 return VPPCOM_EBADFD;
3963 return session->n_accepted_sessions;
3967 vppcom_proto_str (vppcom_proto_t proto)
3969 char const *proto_str;
3973 case VPPCOM_PROTO_TCP:
3976 case VPPCOM_PROTO_UDP:
3979 case VPPCOM_PROTO_TLS:
3982 case VPPCOM_PROTO_QUIC:
3986 proto_str = "UNKNOWN";
3993 vppcom_retval_str (int retval)
4004 st = "VPPCOM_EAGAIN";
4008 st = "VPPCOM_EFAULT";
4012 st = "VPPCOM_ENOMEM";
4016 st = "VPPCOM_EINVAL";
4020 st = "VPPCOM_EBADFD";
4023 case VPPCOM_EAFNOSUPPORT:
4024 st = "VPPCOM_EAFNOSUPPORT";
4027 case VPPCOM_ECONNABORTED:
4028 st = "VPPCOM_ECONNABORTED";
4031 case VPPCOM_ECONNRESET:
4032 st = "VPPCOM_ECONNRESET";
4035 case VPPCOM_ENOTCONN:
4036 st = "VPPCOM_ENOTCONN";
4039 case VPPCOM_ECONNREFUSED:
4040 st = "VPPCOM_ECONNREFUSED";
4043 case VPPCOM_ETIMEDOUT:
4044 st = "VPPCOM_ETIMEDOUT";
4048 st = "UNKNOWN_STATE";
4056 * fd.io coding-style-patch-verification: ON
4059 * eval: (c-set-style "gnu")