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->api_client_handle;
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->api_client_handle;
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->api_client_handle;
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->api_client_handle;
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->api_client_handle;
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->api_client_handle;
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->api_client_handle;
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;
534 /* Application closed session before connect reply */
535 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK)
536 && session->session_state == STATE_CLOSED)
537 vcl_send_session_disconnect (wrk, session);
539 session->session_state = STATE_CONNECT;
541 /* Add it to lookup table */
542 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
544 VDBG (1, "session %u [0x%llx] connected! rx_fifo %p, refcnt %d, tx_fifo %p,"
545 " refcnt %d", session_index, mp->handle, session->rx_fifo,
546 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
548 return session_index;
552 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
554 vcl_session_msg_t *accepted_msg;
557 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
559 accepted_msg = &session->accept_evts_fifo[i];
560 if (accepted_msg->accepted_msg.handle == handle)
562 accepted_msg->flags |= flags;
570 vcl_session_reset_handler (vcl_worker_t * wrk,
571 session_reset_msg_t * reset_msg)
573 vcl_session_t *session;
576 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
577 session = vcl_session_get (wrk, sid);
580 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
581 return VCL_INVALID_SESSION_INDEX;
584 /* Caught a reset before actually accepting the session */
585 if (session->session_state == STATE_LISTEN)
588 if (!vcl_flag_accepted_session (session, reset_msg->handle,
589 VCL_ACCEPTED_F_RESET))
590 VDBG (0, "session was not accepted!");
591 return VCL_INVALID_SESSION_INDEX;
594 if (session->session_state != STATE_CLOSED)
595 session->session_state = STATE_DISCONNECT;
596 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
601 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
603 vcl_session_t *session;
604 u32 sid = mp->context;
606 session = vcl_session_get (wrk, sid);
609 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
610 format_session_error, mp->retval);
613 session->session_state = STATE_DETACHED;
614 session->vpp_handle = mp->handle;
619 VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!",
621 return VCL_INVALID_SESSION_INDEX;
625 session->vpp_handle = mp->handle;
626 session->transport.is_ip4 = mp->lcl_is_ip4;
627 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
628 sizeof (ip46_address_t));
629 session->transport.lcl_port = mp->lcl_port;
630 vcl_session_table_add_listener (wrk, mp->handle, sid);
631 session->session_state = STATE_LISTEN;
633 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
634 vec_validate (wrk->vpp_event_queues, 0);
635 wrk->vpp_event_queues[0] = session->vpp_evt_q;
637 if (vcl_session_is_cl (session))
639 svm_fifo_t *rx_fifo, *tx_fifo;
640 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
641 rx_fifo = uword_to_pointer (mp->rx_fifo, svm_fifo_t *);
642 rx_fifo->client_session_index = sid;
643 tx_fifo = uword_to_pointer (mp->tx_fifo, svm_fifo_t *);
644 tx_fifo->client_session_index = sid;
645 session->rx_fifo = rx_fifo;
646 session->tx_fifo = tx_fifo;
649 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
654 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
656 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
659 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
662 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
665 if (s->session_state != STATE_DISCONNECT)
667 /* Connected udp listener */
668 if (s->session_type == VPPCOM_PROTO_UDP
669 && s->session_state == STATE_CLOSED)
672 VDBG (0, "Unlisten session in wrong state %llx", mp->handle);
677 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
678 s->session_index, mp->handle, format_session_error, mp->retval);
680 if (mp->context != wrk->wrk_index)
681 VDBG (0, "wrong context");
683 vcl_session_table_del_vpp_handle (wrk, mp->handle);
684 vcl_session_free (wrk, s);
688 vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
690 session_migrated_msg_t *mp = (session_migrated_msg_t *) data;
693 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
696 VDBG (0, "Migrated notification with wrong handle %llx", mp->handle);
700 s->vpp_thread_index = mp->vpp_thread_index;
701 s->vpp_handle = mp->new_handle;
702 s->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
704 vec_validate (wrk->vpp_event_queues, s->vpp_thread_index);
705 wrk->vpp_event_queues[s->vpp_thread_index] = s->vpp_evt_q;
707 vcl_session_table_del_vpp_handle (wrk, mp->handle);
708 vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
710 /* Generate new tx event if we have outstanding data */
711 if (svm_fifo_has_event (s->tx_fifo))
712 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
713 SESSION_IO_EVT_TX, SVM_Q_WAIT);
715 VDBG (0, "Migrated 0x%lx to thread %u 0x%lx", mp->handle,
716 s->vpp_thread_index, mp->new_handle);
719 static vcl_session_t *
720 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
722 vcl_session_msg_t *vcl_msg;
723 vcl_session_t *session;
725 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
726 if (PREDICT_FALSE (session != 0))
727 VWRN ("session overlap handle %lu state %u!", msg->handle,
728 session->session_state);
730 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
733 VERR ("couldn't find listen session: listener handle %llx",
734 msg->listener_handle);
738 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
740 vcl_msg->accepted_msg = *msg;
741 /* Session handle points to listener until fully accepted by app */
742 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
747 static vcl_session_t *
748 vcl_session_disconnected_handler (vcl_worker_t * wrk,
749 session_disconnected_msg_t * msg)
751 vcl_session_t *session;
753 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
756 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
760 /* Late disconnect notification on a session that has been closed */
761 if (session->session_state == STATE_CLOSED)
764 /* Caught a disconnect before actually accepting the session */
765 if (session->session_state == STATE_LISTEN)
767 if (!vcl_flag_accepted_session (session, msg->handle,
768 VCL_ACCEPTED_F_CLOSED))
769 VDBG (0, "session was not accepted!");
773 /* If not already reset change state */
774 if (session->session_state != STATE_DISCONNECT)
775 session->session_state = STATE_VPP_CLOSING;
781 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
783 session_cleanup_msg_t *msg;
784 vcl_session_t *session;
786 msg = (session_cleanup_msg_t *) data;
787 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
790 VDBG (0, "disconnect confirmed for unknown handle 0x%llx", msg->handle);
794 if (msg->type == SESSION_CLEANUP_TRANSPORT)
796 /* Transport was cleaned up before we confirmed close. Probably the
797 * app is still waiting for some data that cannot be delivered.
798 * Confirm close to make sure everything is cleaned up */
799 if (session->session_state == STATE_VPP_CLOSING)
800 vcl_session_cleanup (wrk, session, vcl_session_handle (session),
801 1 /* do_disconnect */ );
805 vcl_session_table_del_vpp_handle (wrk, msg->handle);
806 /* Should not happen. App did not close the connection so don't free it. */
807 if (session->session_state != STATE_CLOSED)
809 VDBG (0, "app did not close session %d", session->session_index);
810 session->session_state = STATE_DETACHED;
811 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
814 vcl_session_free (wrk, session);
818 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
820 session_req_worker_update_msg_t *msg;
823 msg = (session_req_worker_update_msg_t *) data;
824 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
828 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
832 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
834 session_worker_update_reply_msg_t *msg;
837 msg = (session_worker_update_reply_msg_t *) data;
838 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
841 VDBG (0, "unknown handle 0x%llx", msg->handle);
844 if (vcl_segment_is_not_mounted (wrk, msg->segment_handle))
846 clib_warning ("segment for session %u is not mounted!",
853 s->rx_fifo = uword_to_pointer (msg->rx_fifo, svm_fifo_t *);
854 s->tx_fifo = uword_to_pointer (msg->tx_fifo, svm_fifo_t *);
855 s->rx_fifo->client_session_index = s->session_index;
856 s->tx_fifo->client_session_index = s->session_index;
857 s->rx_fifo->client_thread_index = wrk->wrk_index;
858 s->tx_fifo->client_thread_index = wrk->wrk_index;
860 s->session_state = STATE_UPDATED;
862 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
863 s->vpp_handle, wrk->wrk_index);
867 vcl_api_recv_fd (vcl_worker_t * wrk, int *fds, int n_fds)
870 if (vcm->cfg.vpp_app_socket_api)
871 return vcl_sapi_recv_fds (wrk, fds, n_fds);
873 return vcl_bapi_recv_fds (wrk, fds, n_fds);
877 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
879 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
880 session_app_add_segment_msg_t *msg;
884 msg = (session_app_add_segment_msg_t *) data;
888 vcl_api_recv_fd (wrk, &fd, 1);
889 seg_type = SSVM_SEGMENT_MEMFD;
892 segment_handle = msg->segment_handle;
893 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
895 clib_warning ("invalid segment handle");
899 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
902 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
906 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
911 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
913 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
914 vcl_segment_detach (msg->segment_handle);
915 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
919 vcl_worker_rpc_handler (vcl_worker_t * wrk, void *data)
921 if (!vcm->wrk_rpc_fn)
924 (vcm->wrk_rpc_fn) (((session_app_wrk_rpc_msg_t *) data)->data);
928 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
930 session_disconnected_msg_t *disconnected_msg;
931 vcl_session_t *session;
933 switch (e->event_type)
935 case SESSION_IO_EVT_RX:
936 case SESSION_IO_EVT_TX:
937 session = vcl_session_get (wrk, e->session_index);
938 if (!session || !(session->session_state & STATE_OPEN))
940 vec_add1 (wrk->unhandled_evts_vector, *e);
942 case SESSION_CTRL_EVT_ACCEPTED:
943 vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
945 case SESSION_CTRL_EVT_CONNECTED:
946 vcl_session_connected_handler (wrk,
947 (session_connected_msg_t *) e->data);
949 case SESSION_CTRL_EVT_DISCONNECTED:
950 disconnected_msg = (session_disconnected_msg_t *) e->data;
951 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
954 VDBG (0, "disconnected session %u [0x%llx]", session->session_index,
955 session->vpp_handle);
957 case SESSION_CTRL_EVT_RESET:
958 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
960 case SESSION_CTRL_EVT_BOUND:
961 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
963 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
964 vcl_session_unlisten_reply_handler (wrk, e->data);
966 case SESSION_CTRL_EVT_MIGRATED:
967 vcl_session_migrated_handler (wrk, e->data);
969 case SESSION_CTRL_EVT_CLEANUP:
970 vcl_session_cleanup_handler (wrk, e->data);
972 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
973 vcl_session_req_worker_update_handler (wrk, e->data);
975 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
976 vcl_session_worker_update_reply_handler (wrk, e->data);
978 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
979 vcl_session_app_add_segment_handler (wrk, e->data);
981 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
982 vcl_session_app_del_segment_handler (wrk, e->data);
984 case SESSION_CTRL_EVT_APP_WRK_RPC:
985 vcl_worker_rpc_handler (wrk, e->data);
988 clib_warning ("unhandled %u", e->event_type);
994 vppcom_wait_for_session_state_change (u32 session_index,
995 vcl_session_state_t state,
998 vcl_worker_t *wrk = vcl_worker_get_current ();
999 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
1000 vcl_session_t *volatile session;
1001 svm_msg_q_msg_t msg;
1006 session = vcl_session_get (wrk, session_index);
1007 if (PREDICT_FALSE (!session))
1009 return VPPCOM_EBADFD;
1011 if (session->session_state & state)
1015 if (session->session_state & STATE_DETACHED)
1017 return VPPCOM_ECONNREFUSED;
1020 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
1025 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1026 vcl_handle_mq_event (wrk, e);
1027 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1029 while (clib_time_now (&wrk->clib_time) < timeout);
1031 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
1032 vppcom_session_state_str (state));
1033 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
1035 return VPPCOM_ETIMEDOUT;
1039 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
1041 vcl_session_state_t state;
1045 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
1048 vec_foreach (sip, wrk->pending_session_wrk_updates)
1050 s = vcl_session_get (wrk, *sip);
1051 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
1052 state = s->session_state;
1053 vppcom_wait_for_session_state_change (s->session_index, STATE_UPDATED, 5);
1054 s->session_state = state;
1056 vec_reset_length (wrk->pending_session_wrk_updates);
1060 vcl_flush_mq_events (void)
1062 vcl_worker_t *wrk = vcl_worker_get_current ();
1063 svm_msg_q_msg_t *msg;
1068 mq = wrk->app_event_queue;
1069 svm_msg_q_lock (mq);
1070 vcl_mq_dequeue_batch (wrk, mq, ~0);
1071 svm_msg_q_unlock (mq);
1073 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1075 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1076 e = svm_msg_q_msg_data (mq, msg);
1077 vcl_handle_mq_event (wrk, e);
1078 svm_msg_q_free_msg (mq, msg);
1080 vec_reset_length (wrk->mq_msg_vector);
1081 vcl_handle_pending_wrk_updates (wrk);
1085 vppcom_session_unbind (u32 session_handle)
1087 vcl_worker_t *wrk = vcl_worker_get_current ();
1088 session_accepted_msg_t *accepted_msg;
1089 vcl_session_t *session = 0;
1090 vcl_session_msg_t *evt;
1092 session = vcl_session_get_w_handle (wrk, session_handle);
1094 return VPPCOM_EBADFD;
1096 /* Flush pending accept events, if any */
1097 while (clib_fifo_elts (session->accept_evts_fifo))
1099 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1100 accepted_msg = &evt->accepted_msg;
1101 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1102 vcl_send_session_accepted_reply (session->vpp_evt_q,
1103 accepted_msg->context,
1104 session->vpp_handle, -1);
1106 clib_fifo_free (session->accept_evts_fifo);
1108 vcl_send_session_unlisten (wrk, session);
1110 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1111 session->vpp_handle);
1112 vcl_evt (VCL_EVT_UNBIND, session);
1114 session->vpp_handle = ~0;
1115 session->session_state = STATE_DISCONNECT;
1121 vppcom_session_disconnect (u32 session_handle)
1123 vcl_worker_t *wrk = vcl_worker_get_current ();
1124 svm_msg_q_t *vpp_evt_q;
1125 vcl_session_t *session, *listen_session;
1126 vcl_session_state_t state;
1129 session = vcl_session_get_w_handle (wrk, session_handle);
1131 return VPPCOM_EBADFD;
1133 vpp_handle = session->vpp_handle;
1134 state = session->session_state;
1136 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
1137 vpp_handle, state, vppcom_session_state_str (state));
1139 if (PREDICT_FALSE (state & STATE_LISTEN))
1141 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
1142 return VPPCOM_EBADFD;
1145 if (state & STATE_VPP_CLOSING)
1147 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
1148 vcl_send_session_disconnected_reply (vpp_evt_q, wrk->api_client_handle,
1150 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
1151 session->session_index, vpp_handle);
1155 /* Session doesn't have an event queue yet. Probably a non-blocking
1156 * connect. Wait for the reply */
1157 if (PREDICT_FALSE (!session->vpp_evt_q))
1160 VDBG (1, "session %u [0x%llx]: sending disconnect...",
1161 session->session_index, vpp_handle);
1162 vcl_send_session_disconnect (wrk, session);
1165 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
1167 listen_session = vcl_session_get (wrk, session->listener_index);
1168 listen_session->n_accepted_sessions--;
1177 * Notify vpp of the disconnect and mark the worker as free. If we're the
1178 * last worker, do a full cleanup otherwise, since we're probably a forked
1179 * child, avoid syscalls as much as possible. We might've lost privileges.
1182 vppcom_app_exit (void)
1184 if (!pool_elts (vcm->workers))
1186 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1187 vcl_set_worker_index (~0);
1188 vcl_elog_stop (vcm);
1192 vcl_api_attach (void)
1194 if (vcm->cfg.vpp_app_socket_api)
1195 return vcl_sapi_attach ();
1197 return vcl_bapi_attach ();
1201 vcl_api_detach (vcl_worker_t * wrk)
1203 vcl_send_app_detach (wrk);
1205 if (vcm->cfg.vpp_app_socket_api)
1206 return vcl_sapi_detach (wrk);
1208 return vcl_bapi_disconnect_from_vpp ();
1212 * VPPCOM Public API functions
1215 vppcom_app_create (const char *app_name)
1217 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1222 VDBG (1, "already initialized");
1223 return VPPCOM_EEXIST;
1227 vppcom_cfg (&vcm->cfg);
1228 vcl_cfg = &vcm->cfg;
1230 vcm->main_cpu = pthread_self ();
1231 vcm->main_pid = getpid ();
1232 vcm->app_name = format (0, "%s", app_name);
1233 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1234 20 /* timeout in secs */ );
1235 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1236 clib_spinlock_init (&vcm->workers_lock);
1237 clib_rwlock_init (&vcm->segment_table_lock);
1238 atexit (vppcom_app_exit);
1239 vcl_elog_init (vcm);
1241 /* Allocate default worker */
1242 vcl_worker_alloc_and_init ();
1244 if ((rv = vcl_api_attach ()))
1247 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1248 vcm->workers[0].api_client_handle, vcm->workers[0].api_client_handle);
1254 vppcom_app_destroy (void)
1256 vcl_worker_t *wrk, *current_wrk;
1259 if (!pool_elts (vcm->workers))
1262 vcl_evt (VCL_EVT_DETACH, vcm);
1264 current_wrk = vcl_worker_get_current ();
1267 pool_foreach (wrk, vcm->workers, ({
1268 if (current_wrk != wrk)
1269 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1273 vcl_api_detach (current_wrk);
1274 vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
1276 vcl_elog_stop (vcm);
1279 * Free the heap and fix vcm
1281 heap = clib_mem_get_heap ();
1282 munmap (clib_mem_get_heap_base (heap), clib_mem_get_heap_size (heap));
1284 vcm = &_vppcom_main;
1289 vppcom_session_create (u8 proto, u8 is_nonblocking)
1291 vcl_worker_t *wrk = vcl_worker_get_current ();
1292 vcl_session_t *session;
1294 session = vcl_session_alloc (wrk);
1296 session->session_type = proto;
1297 session->session_state = STATE_CLOSED;
1298 session->vpp_handle = ~0;
1299 session->is_dgram = vcl_proto_is_dgram (proto);
1302 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
1304 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1305 is_nonblocking, session_index);
1307 VDBG (0, "created session %u", session->session_index);
1309 return vcl_session_handle (session);
1313 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * session,
1314 vcl_session_handle_t sh, u8 do_disconnect)
1316 vcl_session_state_t state;
1317 u32 next_sh, vep_sh;
1322 is_vep = session->is_vep;
1323 next_sh = session->vep.next_sh;
1324 vep_sh = session->vep.vep_sh;
1325 state = session->session_state;
1326 vpp_handle = session->vpp_handle;
1328 VDBG (1, "session %u [0x%llx] closing", session->session_index, vpp_handle);
1332 while (next_sh != ~0)
1334 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1335 if (PREDICT_FALSE (rv < 0))
1336 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1337 " failed! rv %d (%s)", vpp_handle, next_sh, vep_sh, rv,
1338 vppcom_retval_str (rv));
1340 next_sh = session->vep.next_sh;
1345 if (session->is_vep_session)
1347 rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, sh, 0);
1349 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1350 "failed! rv %d (%s)", session->session_index, vpp_handle,
1351 vep_sh, rv, vppcom_retval_str (rv));
1356 VDBG (1, "session %u [0x%llx] disconnect skipped",
1357 session->session_index, vpp_handle);
1361 if (state & STATE_LISTEN)
1363 rv = vppcom_session_unbind (sh);
1364 if (PREDICT_FALSE (rv < 0))
1365 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1366 "rv %d (%s)", session->session_index, vpp_handle, rv,
1367 vppcom_retval_str (rv));
1370 else if ((state & STATE_OPEN)
1371 || (vcl_session_is_connectable_listener (wrk, session)))
1373 rv = vppcom_session_disconnect (sh);
1374 if (PREDICT_FALSE (rv < 0))
1375 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1376 " rv %d (%s)", session->session_index, vpp_handle,
1377 rv, vppcom_retval_str (rv));
1379 else if (state == STATE_DISCONNECT)
1381 svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, session);
1382 vcl_send_session_reset_reply (mq, wrk->api_client_handle,
1383 session->vpp_handle, 0);
1385 else if (state == STATE_DETACHED)
1387 /* Should not happen. VPP cleaned up before app confirmed close */
1388 VDBG (0, "vpp freed session %d before close", session->session_index);
1392 session->session_state = STATE_CLOSED;
1394 /* Session is removed only after vpp confirms the disconnect */
1398 vcl_session_table_del_vpp_handle (wrk, vpp_handle);
1400 vcl_session_free (wrk, session);
1401 vcl_evt (VCL_EVT_CLOSE, session, rv);
1407 vppcom_session_close (uint32_t session_handle)
1409 vcl_worker_t *wrk = vcl_worker_get_current ();
1410 vcl_session_t *session;
1412 session = vcl_session_get_w_handle (wrk, session_handle);
1414 return VPPCOM_EBADFD;
1415 return vcl_session_cleanup (wrk, session, session_handle,
1416 1 /* do_disconnect */ );
1420 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1422 vcl_worker_t *wrk = vcl_worker_get_current ();
1423 vcl_session_t *session = 0;
1426 return VPPCOM_EINVAL;
1428 session = vcl_session_get_w_handle (wrk, session_handle);
1430 return VPPCOM_EBADFD;
1432 if (session->is_vep)
1434 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1435 session->session_index);
1436 return VPPCOM_EBADFD;
1439 session->transport.is_ip4 = ep->is_ip4;
1441 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1442 sizeof (ip4_address_t));
1444 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1445 sizeof (ip6_address_t));
1446 session->transport.lcl_port = ep->port;
1448 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1449 "proto %s", session->session_index, session_handle,
1450 session->transport.is_ip4 ? "IPv4" : "IPv6",
1451 format_ip46_address, &session->transport.lcl_ip,
1452 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1453 clib_net_to_host_u16 (session->transport.lcl_port),
1454 vppcom_proto_str (session->session_type));
1455 vcl_evt (VCL_EVT_BIND, session);
1457 if (session->session_type == VPPCOM_PROTO_UDP)
1458 vppcom_session_listen (session_handle, 10);
1464 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1466 vcl_worker_t *wrk = vcl_worker_get_current ();
1467 vcl_session_t *listen_session = 0;
1468 u64 listen_vpp_handle;
1471 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1472 if (!listen_session || listen_session->is_vep)
1473 return VPPCOM_EBADFD;
1475 if (q_len == 0 || q_len == ~0)
1476 q_len = vcm->cfg.listen_queue_size;
1478 listen_vpp_handle = listen_session->vpp_handle;
1479 if (listen_session->session_state & STATE_LISTEN)
1481 VDBG (0, "session %u [0x%llx]: already in listen state!",
1482 listen_sh, listen_vpp_handle);
1486 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1489 * Send listen request to vpp and wait for reply
1491 vcl_send_session_listen (wrk, listen_session);
1492 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1494 vcm->cfg.session_timeout);
1496 if (PREDICT_FALSE (rv))
1498 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1499 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1500 listen_sh, listen_session->vpp_handle, rv,
1501 vppcom_retval_str (rv));
1509 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1513 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1515 return VPPCOM_EBADFD;
1518 if ((ls->session_state != STATE_LISTEN)
1519 && (!vcl_session_is_connectable_listener (wrk, ls)))
1522 "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1523 " (%s)", ls->vpp_handle, ls->session_state,
1524 vppcom_session_state_str (ls->session_state));
1525 return VPPCOM_EBADFD;
1531 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1533 if (!strcmp (proto_str, "TCP"))
1534 *proto = VPPCOM_PROTO_TCP;
1535 else if (!strcmp (proto_str, "tcp"))
1536 *proto = VPPCOM_PROTO_TCP;
1537 else if (!strcmp (proto_str, "UDP"))
1538 *proto = VPPCOM_PROTO_UDP;
1539 else if (!strcmp (proto_str, "udp"))
1540 *proto = VPPCOM_PROTO_UDP;
1541 else if (!strcmp (proto_str, "TLS"))
1542 *proto = VPPCOM_PROTO_TLS;
1543 else if (!strcmp (proto_str, "tls"))
1544 *proto = VPPCOM_PROTO_TLS;
1545 else if (!strcmp (proto_str, "QUIC"))
1546 *proto = VPPCOM_PROTO_QUIC;
1547 else if (!strcmp (proto_str, "quic"))
1548 *proto = VPPCOM_PROTO_QUIC;
1555 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1558 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1559 vcl_worker_t *wrk = vcl_worker_get_current ();
1560 session_accepted_msg_t accepted_msg;
1561 vcl_session_t *listen_session = 0;
1562 vcl_session_t *client_session = 0;
1563 vcl_session_msg_t *evt;
1564 svm_msg_q_msg_t msg;
1569 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1570 if (!listen_session)
1571 return VPPCOM_EBADFD;
1573 listen_session_index = listen_session->session_index;
1574 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1577 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1579 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1580 accept_flags = evt->flags;
1581 accepted_msg = evt->accepted_msg;
1585 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1586 VCL_SESS_ATTR_NONBLOCK);
1589 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1590 return VPPCOM_EAGAIN;
1592 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1593 return VPPCOM_EAGAIN;
1595 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1596 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1598 vcl_handle_mq_event (wrk, e);
1599 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1602 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1603 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1609 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1610 listen_session_index);
1611 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1612 return VPPCOM_ECONNABORTED;
1614 listen_session = vcl_session_get (wrk, listen_session_index);
1615 client_session = vcl_session_get (wrk, client_session_index);
1617 if (flags & O_NONBLOCK)
1618 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1620 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1621 " flags %d, is_nonblocking %u", listen_session->session_index,
1622 listen_session->vpp_handle, client_session_index,
1623 client_session->vpp_handle, flags,
1624 VCL_SESS_ATTR_TEST (client_session->attr, VCL_SESS_ATTR_NONBLOCK));
1628 ep->is_ip4 = client_session->transport.is_ip4;
1629 ep->port = client_session->transport.rmt_port;
1630 if (client_session->transport.is_ip4)
1631 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1632 sizeof (ip4_address_t));
1634 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1635 sizeof (ip6_address_t));
1638 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1639 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1640 client_session_index, client_session->vpp_handle,
1641 format_ip46_address, &client_session->transport.rmt_ip,
1642 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1643 clib_net_to_host_u16 (client_session->transport.rmt_port),
1644 format_ip46_address, &client_session->transport.lcl_ip,
1645 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1646 clib_net_to_host_u16 (client_session->transport.lcl_port));
1647 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1648 client_session_index);
1651 * Session might have been closed already
1655 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1656 client_session->session_state = STATE_VPP_CLOSING;
1657 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1658 client_session->session_state = STATE_DISCONNECT;
1660 return vcl_session_handle (client_session);
1664 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1666 vcl_worker_t *wrk = vcl_worker_get_current ();
1667 vcl_session_t *session = 0;
1671 session = vcl_session_get_w_handle (wrk, session_handle);
1673 return VPPCOM_EBADFD;
1674 session_index = session->session_index;
1676 if (PREDICT_FALSE (session->is_vep))
1678 VDBG (0, "ERROR: cannot connect epoll session %u!",
1679 session->session_index);
1680 return VPPCOM_EBADFD;
1683 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1685 VDBG (0, "session handle %u [0x%llx]: session already "
1686 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1687 session_handle, session->vpp_handle,
1688 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1689 &session->transport.rmt_ip, session->transport.is_ip4 ?
1690 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1691 clib_net_to_host_u16 (session->transport.rmt_port),
1692 vppcom_proto_str (session->session_type), session->session_state,
1693 vppcom_session_state_str (session->session_state));
1697 /* Attempt to connect a connectionless listener */
1698 if (PREDICT_FALSE (session->session_state & STATE_LISTEN))
1700 if (session->session_type != VPPCOM_PROTO_UDP)
1701 return VPPCOM_EINVAL;
1702 vcl_send_session_unlisten (wrk, session);
1703 session->session_state = STATE_CLOSED;
1706 session->transport.is_ip4 = server_ep->is_ip4;
1707 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1708 session->transport.rmt_port = server_ep->port;
1709 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1710 session->flags |= VCL_SESSION_F_CONNECTED;
1712 VDBG (0, "session handle %u (%s): connecting to peer %s %U "
1713 "port %d proto %s", session_handle,
1714 vppcom_session_state_str (session->session_state),
1715 session->transport.is_ip4 ? "IPv4" : "IPv6",
1716 format_ip46_address,
1717 &session->transport.rmt_ip, session->transport.is_ip4 ?
1718 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1719 clib_net_to_host_u16 (session->transport.rmt_port),
1720 vppcom_proto_str (session->session_type));
1722 vcl_send_session_connect (wrk, session);
1724 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK))
1726 session->session_state = STATE_CONNECT;
1727 return VPPCOM_EINPROGRESS;
1731 * Wait for reply from vpp if blocking
1733 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1734 vcm->cfg.session_timeout);
1736 session = vcl_session_get (wrk, session_index);
1737 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1738 session->vpp_handle, rv ? "failed" : "succeeded");
1744 vppcom_session_stream_connect (uint32_t session_handle,
1745 uint32_t parent_session_handle)
1747 vcl_worker_t *wrk = vcl_worker_get_current ();
1748 vcl_session_t *session, *parent_session;
1749 u32 session_index, parent_session_index;
1752 session = vcl_session_get_w_handle (wrk, session_handle);
1754 return VPPCOM_EBADFD;
1755 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1756 if (!parent_session)
1757 return VPPCOM_EBADFD;
1759 session_index = session->session_index;
1760 parent_session_index = parent_session->session_index;
1761 if (PREDICT_FALSE (session->is_vep))
1763 VDBG (0, "ERROR: cannot connect epoll session %u!",
1764 session->session_index);
1765 return VPPCOM_EBADFD;
1768 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1770 VDBG (0, "session handle %u [0x%llx]: session already "
1771 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1772 session_handle, session->vpp_handle,
1773 parent_session_handle, parent_session->vpp_handle,
1774 vppcom_proto_str (session->session_type), session->session_state,
1775 vppcom_session_state_str (session->session_state));
1779 /* Connect to quic session specifics */
1780 session->transport.is_ip4 = parent_session->transport.is_ip4;
1781 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1782 session->transport.rmt_port = 0;
1783 session->parent_handle = parent_session->vpp_handle;
1785 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1786 session_handle, parent_session_handle, parent_session->vpp_handle);
1789 * Send connect request and wait for reply from vpp
1791 vcl_send_session_connect (wrk, session);
1792 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1793 vcm->cfg.session_timeout);
1795 session->listener_index = parent_session_index;
1796 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1798 parent_session->n_accepted_sessions++;
1800 session = vcl_session_get (wrk, session_index);
1801 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1802 session->vpp_handle, rv ? "failed" : "succeeded");
1808 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1810 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1814 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1817 vcl_worker_t *wrk = vcl_worker_get_current ();
1818 int rv, n_read = 0, is_nonblocking;
1819 vcl_session_t *s = 0;
1820 svm_fifo_t *rx_fifo;
1821 svm_msg_q_msg_t msg;
1826 if (PREDICT_FALSE (!buf))
1827 return VPPCOM_EINVAL;
1829 s = vcl_session_get_w_handle (wrk, session_handle);
1830 if (PREDICT_FALSE (!s || s->is_vep))
1831 return VPPCOM_EBADFD;
1833 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1835 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1836 s->session_index, s->vpp_handle, s->session_state,
1837 vppcom_session_state_str (s->session_state));
1838 return vcl_session_closed_error (s);
1841 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1842 is_ct = vcl_session_is_ct (s);
1843 mq = wrk->app_event_queue;
1844 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1847 if (svm_fifo_is_empty_cons (rx_fifo))
1851 if (vcl_session_is_closing (s))
1852 return vcl_session_closing_error (s);
1853 svm_fifo_unset_event (s->rx_fifo);
1854 return VPPCOM_EWOULDBLOCK;
1856 while (svm_fifo_is_empty_cons (rx_fifo))
1858 if (vcl_session_is_closing (s))
1859 return vcl_session_closing_error (s);
1861 svm_fifo_unset_event (s->rx_fifo);
1862 svm_msg_q_lock (mq);
1863 if (svm_msg_q_is_empty (mq))
1864 svm_msg_q_wait (mq);
1866 svm_msg_q_sub_w_lock (mq, &msg);
1867 e = svm_msg_q_msg_data (mq, &msg);
1868 svm_msg_q_unlock (mq);
1869 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1870 vcl_handle_mq_event (wrk, e);
1871 svm_msg_q_free_msg (mq, &msg);
1878 rv = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1880 rv = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1885 if (svm_fifo_is_empty_cons (rx_fifo))
1887 svm_fifo_unset_event (s->rx_fifo);
1888 if (!svm_fifo_is_empty_cons (rx_fifo)
1889 && svm_fifo_set_event (s->rx_fifo) && is_nonblocking)
1891 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1892 e->event_type = SESSION_IO_EVT_RX;
1893 e->session_index = s->session_index;
1896 else if (PREDICT_FALSE (rv < n))
1898 /* More data enqueued while reading. Try to drain it
1899 * or fill the buffer */
1905 if (PREDICT_FALSE (svm_fifo_needs_deq_ntf (rx_fifo, n_read)))
1907 svm_fifo_clear_deq_ntf (rx_fifo);
1908 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1909 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1912 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1913 s->vpp_handle, n_read, rx_fifo);
1919 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1921 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1925 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1927 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1931 vppcom_session_read_segments (uint32_t session_handle,
1932 vppcom_data_segments_t ds)
1934 vcl_worker_t *wrk = vcl_worker_get_current ();
1935 int n_read = 0, is_nonblocking;
1936 vcl_session_t *s = 0;
1937 svm_fifo_t *rx_fifo;
1938 svm_msg_q_msg_t msg;
1943 s = vcl_session_get_w_handle (wrk, session_handle);
1944 if (PREDICT_FALSE (!s || s->is_vep))
1945 return VPPCOM_EBADFD;
1947 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1948 return vcl_session_closed_error (s);
1950 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1951 is_ct = vcl_session_is_ct (s);
1952 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1953 rx_fifo = s->rx_fifo;
1957 svm_fifo_unset_event (s->rx_fifo);
1959 if (svm_fifo_is_empty_cons (rx_fifo))
1963 svm_fifo_unset_event (rx_fifo);
1964 return VPPCOM_EWOULDBLOCK;
1966 while (svm_fifo_is_empty_cons (rx_fifo))
1968 if (vcl_session_is_closing (s))
1969 return vcl_session_closing_error (s);
1971 svm_fifo_unset_event (rx_fifo);
1972 svm_msg_q_lock (mq);
1973 if (svm_msg_q_is_empty (mq))
1974 svm_msg_q_wait (mq);
1976 svm_msg_q_sub_w_lock (mq, &msg);
1977 e = svm_msg_q_msg_data (mq, &msg);
1978 svm_msg_q_unlock (mq);
1979 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1980 vcl_handle_mq_event (wrk, e);
1981 svm_msg_q_free_msg (mq, &msg);
1985 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_seg_t *) ds);
1986 svm_fifo_unset_event (rx_fifo);
1992 vppcom_session_free_segments (uint32_t session_handle,
1993 vppcom_data_segments_t ds)
1995 vcl_worker_t *wrk = vcl_worker_get_current ();
1998 s = vcl_session_get_w_handle (wrk, session_handle);
1999 if (PREDICT_FALSE (!s || s->is_vep))
2002 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_seg_t *) ds);
2006 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
2008 u32 first_copy = clib_min (ds[0].len, max_bytes);
2009 clib_memcpy_fast (buf, ds[0].data, first_copy);
2010 if (first_copy < max_bytes)
2012 clib_memcpy_fast (buf + first_copy, ds[1].data,
2013 clib_min (ds[1].len, max_bytes - first_copy));
2019 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
2021 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
2025 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2027 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2029 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2035 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2036 size_t n, u8 is_flush, u8 is_dgram)
2038 int n_write, is_nonblocking;
2039 session_evt_type_t et;
2040 svm_msg_q_msg_t msg;
2041 svm_fifo_t *tx_fifo;
2046 if (PREDICT_FALSE (!buf || n == 0))
2047 return VPPCOM_EINVAL;
2049 if (PREDICT_FALSE (s->is_vep))
2051 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2052 " session!", s->session_index, s->vpp_handle);
2053 return VPPCOM_EBADFD;
2056 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2058 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2059 s->session_index, s->vpp_handle, s->session_state,
2060 vppcom_session_state_str (s->session_state));
2061 return vcl_session_closed_error (s);;
2064 is_ct = vcl_session_is_ct (s);
2065 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2066 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
2068 mq = wrk->app_event_queue;
2069 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2073 return VPPCOM_EWOULDBLOCK;
2075 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2077 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2078 if (vcl_session_is_closing (s))
2079 return vcl_session_closing_error (s);
2080 svm_msg_q_lock (mq);
2081 if (svm_msg_q_is_empty (mq))
2082 svm_msg_q_wait (mq);
2084 svm_msg_q_sub_w_lock (mq, &msg);
2085 e = svm_msg_q_msg_data (mq, &msg);
2086 svm_msg_q_unlock (mq);
2088 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
2089 vcl_handle_mq_event (wrk, e);
2090 svm_msg_q_free_msg (mq, &msg);
2094 et = SESSION_IO_EVT_TX;
2095 if (is_flush && !is_ct)
2096 et = SESSION_IO_EVT_TX_FLUSH;
2099 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2100 s->vpp_evt_q, buf, n, et,
2101 0 /* do_evt */ , SVM_Q_WAIT);
2103 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2104 0 /* do_evt */ , SVM_Q_WAIT);
2106 if (svm_fifo_set_event (s->tx_fifo))
2107 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
2110 /* The underlying fifo segment can run out of memory */
2111 if (PREDICT_FALSE (n_write < 0))
2112 return VPPCOM_EAGAIN;
2114 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2115 s->vpp_handle, n_write);
2121 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2123 vcl_worker_t *wrk = vcl_worker_get_current ();
2126 s = vcl_session_get_w_handle (wrk, session_handle);
2127 if (PREDICT_FALSE (!s))
2128 return VPPCOM_EBADFD;
2130 return vppcom_session_write_inline (wrk, s, buf, n,
2131 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2135 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2137 vcl_worker_t *wrk = vcl_worker_get_current ();
2140 s = vcl_session_get_w_handle (wrk, session_handle);
2141 if (PREDICT_FALSE (!s))
2142 return VPPCOM_EBADFD;
2144 return vppcom_session_write_inline (wrk, s, buf, n,
2145 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2148 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2149 if (PREDICT_FALSE (!_s->rx_fifo)) \
2151 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2153 if (!vcl_session_is_ct (_s)) \
2155 svm_fifo_unset_event (_s->rx_fifo); \
2156 if (svm_fifo_is_empty (_s->rx_fifo)) \
2159 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2161 svm_fifo_unset_event (_s->rx_fifo); /* rx evts on actual fifo*/ \
2162 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2168 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2169 unsigned long n_bits, unsigned long *read_map,
2170 unsigned long *write_map,
2171 unsigned long *except_map, u32 * bits_set)
2173 session_disconnected_msg_t *disconnected_msg;
2174 session_connected_msg_t *connected_msg;
2175 vcl_session_t *session;
2178 switch (e->event_type)
2180 case SESSION_IO_EVT_RX:
2181 sid = e->session_index;
2182 session = vcl_session_get (wrk, sid);
2183 if (!session || !vcl_session_is_open (session))
2185 vcl_fifo_rx_evt_valid_or_break (session);
2186 if (sid < n_bits && read_map)
2188 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2192 case SESSION_IO_EVT_TX:
2193 sid = e->session_index;
2194 session = vcl_session_get (wrk, sid);
2195 if (!session || !vcl_session_is_open (session))
2197 if (sid < n_bits && write_map)
2199 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2203 case SESSION_CTRL_EVT_ACCEPTED:
2204 session = vcl_session_accepted (wrk,
2205 (session_accepted_msg_t *) e->data);
2208 sid = session->session_index;
2209 if (sid < n_bits && read_map)
2211 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2215 case SESSION_CTRL_EVT_CONNECTED:
2216 connected_msg = (session_connected_msg_t *) e->data;
2217 sid = vcl_session_connected_handler (wrk, connected_msg);
2218 if (sid == VCL_INVALID_SESSION_INDEX)
2220 if (sid < n_bits && write_map)
2222 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2226 case SESSION_CTRL_EVT_DISCONNECTED:
2227 disconnected_msg = (session_disconnected_msg_t *) e->data;
2228 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2231 sid = session->session_index;
2232 if (sid < n_bits && except_map)
2234 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2238 case SESSION_CTRL_EVT_RESET:
2239 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2240 if (sid < n_bits && except_map)
2242 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2246 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2247 vcl_session_unlisten_reply_handler (wrk, e->data);
2249 case SESSION_CTRL_EVT_MIGRATED:
2250 vcl_session_migrated_handler (wrk, e->data);
2252 case SESSION_CTRL_EVT_CLEANUP:
2253 vcl_session_cleanup_handler (wrk, e->data);
2255 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2256 vcl_session_worker_update_reply_handler (wrk, e->data);
2258 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2259 vcl_session_req_worker_update_handler (wrk, e->data);
2261 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2262 vcl_session_app_add_segment_handler (wrk, e->data);
2264 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2265 vcl_session_app_del_segment_handler (wrk, e->data);
2267 case SESSION_CTRL_EVT_APP_WRK_RPC:
2268 vcl_worker_rpc_handler (wrk, e->data);
2271 clib_warning ("unhandled: %u", e->event_type);
2277 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2278 unsigned long n_bits, unsigned long *read_map,
2279 unsigned long *write_map, unsigned long *except_map,
2280 double time_to_wait, u32 * bits_set)
2282 svm_msg_q_msg_t *msg;
2286 svm_msg_q_lock (mq);
2287 if (svm_msg_q_is_empty (mq))
2291 svm_msg_q_unlock (mq);
2297 svm_msg_q_unlock (mq);
2300 else if (time_to_wait < 0)
2302 svm_msg_q_wait (mq);
2306 if (svm_msg_q_timedwait (mq, time_to_wait))
2308 svm_msg_q_unlock (mq);
2313 vcl_mq_dequeue_batch (wrk, mq, ~0);
2314 svm_msg_q_unlock (mq);
2316 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2318 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2319 e = svm_msg_q_msg_data (mq, msg);
2320 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2321 except_map, bits_set);
2322 svm_msg_q_free_msg (mq, msg);
2324 vec_reset_length (wrk->mq_msg_vector);
2325 vcl_handle_pending_wrk_updates (wrk);
2330 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2331 vcl_si_set * read_map, vcl_si_set * write_map,
2332 vcl_si_set * except_map, double time_to_wait,
2335 double wait = 0, start = 0;
2339 wait = time_to_wait;
2340 start = clib_time_now (&wrk->clib_time);
2345 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2346 write_map, except_map, wait, bits_set);
2352 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2360 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2361 vcl_si_set * read_map, vcl_si_set * write_map,
2362 vcl_si_set * except_map, double time_to_wait,
2365 vcl_mq_evt_conn_t *mqc;
2366 int __clib_unused n_read;
2370 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2371 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2372 vec_len (wrk->mq_events), time_to_wait);
2373 for (i = 0; i < n_mq_evts; i++)
2375 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2376 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2377 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2378 except_map, 0, bits_set);
2381 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2385 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2386 vcl_si_set * except_map, double time_to_wait)
2388 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2389 vcl_worker_t *wrk = vcl_worker_get_current ();
2390 vcl_session_t *session = 0;
2393 if (n_bits && read_map)
2395 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2396 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2397 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2398 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2400 if (n_bits && write_map)
2402 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2403 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2404 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2405 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2407 if (n_bits && except_map)
2409 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2410 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2411 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2412 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2422 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2423 if (!(session = vcl_session_get (wrk, sid)))
2425 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2430 if (vcl_session_write_ready (session))
2432 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2436 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2443 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2444 if (!(session = vcl_session_get (wrk, sid)))
2446 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2451 if (vcl_session_read_ready (session))
2453 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2461 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2463 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2464 read_map, write_map, except_map, &bits_set);
2466 vec_reset_length (wrk->unhandled_evts_vector);
2468 if (vcm->cfg.use_mq_eventfd)
2469 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2470 time_to_wait, &bits_set);
2472 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2473 time_to_wait, &bits_set);
2479 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2481 vcl_session_t *session;
2482 vppcom_epoll_t *vep;
2483 u32 sh = vep_handle;
2485 if (VPPCOM_DEBUG <= 2)
2488 session = vcl_session_get_w_handle (wrk, vep_handle);
2489 if (PREDICT_FALSE (!session))
2491 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2494 if (PREDICT_FALSE (!session->is_vep))
2496 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2499 vep = &session->vep;
2500 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2503 " is_vep_session = %u\n"
2504 " next_sh = 0x%x (%u)\n"
2505 "}\n", vep_handle, session->is_vep, session->is_vep_session,
2506 vep->next_sh, vep->next_sh);
2508 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2510 session = vcl_session_get_w_handle (wrk, sh);
2511 if (PREDICT_FALSE (!session))
2513 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2516 if (PREDICT_FALSE (session->is_vep))
2518 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2520 else if (PREDICT_FALSE (!session->is_vep_session))
2522 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2525 vep = &session->vep;
2526 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2527 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2528 sh, session->vep.vep_sh, vep_handle);
2529 if (session->is_vep_session)
2531 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2533 " next_sh = 0x%x (%u)\n"
2534 " prev_sh = 0x%x (%u)\n"
2535 " vep_sh = 0x%x (%u)\n"
2536 " ev.events = 0x%x\n"
2537 " ev.data.u64 = 0x%llx\n"
2540 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2541 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2542 vep->ev.data.u64, vep->et_mask);
2547 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2551 vppcom_epoll_create (void)
2553 vcl_worker_t *wrk = vcl_worker_get_current ();
2554 vcl_session_t *vep_session;
2556 vep_session = vcl_session_alloc (wrk);
2558 vep_session->is_vep = 1;
2559 vep_session->vep.vep_sh = ~0;
2560 vep_session->vep.next_sh = ~0;
2561 vep_session->vep.prev_sh = ~0;
2562 vep_session->vpp_handle = ~0;
2564 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2565 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2567 return vcl_session_handle (vep_session);
2571 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2572 struct epoll_event *event)
2574 vcl_worker_t *wrk = vcl_worker_get_current ();
2575 vcl_session_t *vep_session;
2580 if (vep_handle == session_handle)
2582 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2583 return VPPCOM_EINVAL;
2586 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2587 if (PREDICT_FALSE (!vep_session))
2589 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2590 return VPPCOM_EBADFD;
2592 if (PREDICT_FALSE (!vep_session->is_vep))
2594 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2595 return VPPCOM_EINVAL;
2598 ASSERT (vep_session->vep.vep_sh == ~0);
2599 ASSERT (vep_session->vep.prev_sh == ~0);
2601 s = vcl_session_get_w_handle (wrk, session_handle);
2602 if (PREDICT_FALSE (!s))
2604 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2605 return VPPCOM_EBADFD;
2607 if (PREDICT_FALSE (s->is_vep))
2609 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2610 return VPPCOM_EINVAL;
2616 if (PREDICT_FALSE (!event))
2618 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2619 return VPPCOM_EINVAL;
2621 if (vep_session->vep.next_sh != ~0)
2623 vcl_session_t *next_session;
2624 next_session = vcl_session_get_w_handle (wrk,
2625 vep_session->vep.next_sh);
2626 if (PREDICT_FALSE (!next_session))
2628 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2629 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2630 return VPPCOM_EBADFD;
2632 ASSERT (next_session->vep.prev_sh == vep_handle);
2633 next_session->vep.prev_sh = session_handle;
2635 s->vep.next_sh = vep_session->vep.next_sh;
2636 s->vep.prev_sh = vep_handle;
2637 s->vep.vep_sh = vep_handle;
2638 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2641 s->is_vep_session = 1;
2642 vep_session->vep.next_sh = session_handle;
2644 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2645 if (txf && (event->events & EPOLLOUT))
2646 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2648 /* Generate EPOLLOUT if tx fifo not full */
2649 if ((event->events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2651 session_event_t e = { 0 };
2652 e.event_type = SESSION_IO_EVT_TX;
2653 e.session_index = s->session_index;
2654 vec_add1 (wrk->unhandled_evts_vector, e);
2656 /* Generate EPOLLIN if rx fifo has data */
2657 if ((event->events & EPOLLIN) && (vcl_session_read_ready (s) > 0))
2659 session_event_t e = { 0 };
2660 e.event_type = SESSION_IO_EVT_RX;
2661 e.session_index = s->session_index;
2662 vec_add1 (wrk->unhandled_evts_vector, e);
2664 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2665 vep_handle, session_handle, event->events, event->data.u64);
2666 vcl_evt (VCL_EVT_EPOLL_CTLADD, s, event->events, event->data.u64);
2670 if (PREDICT_FALSE (!event))
2672 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2676 else if (PREDICT_FALSE (!s->is_vep_session))
2678 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2682 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2684 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2685 session_handle, s->vep.vep_sh, vep_handle);
2690 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2691 if ((event->events & EPOLLOUT) &&
2692 !(s->vep.ev.events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2694 session_event_t e = { 0 };
2695 e.event_type = SESSION_IO_EVT_TX;
2696 e.session_index = s->session_index;
2697 vec_add1 (wrk->unhandled_evts_vector, e);
2699 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2701 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2702 if (event->events & EPOLLOUT)
2703 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2705 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2706 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2707 vep_handle, session_handle, event->events, event->data.u64);
2711 if (PREDICT_FALSE (!s->is_vep_session))
2713 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2717 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2719 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2720 session_handle, s->vep.vep_sh, vep_handle);
2725 if (s->vep.prev_sh == vep_handle)
2726 vep_session->vep.next_sh = s->vep.next_sh;
2729 vcl_session_t *prev_session;
2730 prev_session = vcl_session_get_w_handle (wrk, s->vep.prev_sh);
2731 if (PREDICT_FALSE (!prev_session))
2733 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2734 s->vep.prev_sh, session_handle);
2735 return VPPCOM_EBADFD;
2737 ASSERT (prev_session->vep.next_sh == session_handle);
2738 prev_session->vep.next_sh = s->vep.next_sh;
2740 if (s->vep.next_sh != ~0)
2742 vcl_session_t *next_session;
2743 next_session = vcl_session_get_w_handle (wrk, s->vep.next_sh);
2744 if (PREDICT_FALSE (!next_session))
2746 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2747 s->vep.next_sh, session_handle);
2748 return VPPCOM_EBADFD;
2750 ASSERT (next_session->vep.prev_sh == session_handle);
2751 next_session->vep.prev_sh = s->vep.prev_sh;
2754 memset (&s->vep, 0, sizeof (s->vep));
2755 s->vep.next_sh = ~0;
2756 s->vep.prev_sh = ~0;
2758 s->is_vep_session = 0;
2760 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2762 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2764 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2766 vcl_evt (VCL_EVT_EPOLL_CTLDEL, s, vep_sh);
2770 VDBG (0, "Invalid operation (%d)!", op);
2774 vep_verify_epoll_chain (wrk, vep_handle);
2781 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2782 struct epoll_event *events, u32 * num_ev)
2784 session_disconnected_msg_t *disconnected_msg;
2785 session_connected_msg_t *connected_msg;
2786 u32 sid = ~0, session_events;
2787 u64 session_evt_data = ~0;
2788 vcl_session_t *session;
2791 switch (e->event_type)
2793 case SESSION_IO_EVT_RX:
2794 sid = e->session_index;
2795 session = vcl_session_get (wrk, sid);
2796 if (vcl_session_is_closed (session))
2798 vcl_fifo_rx_evt_valid_or_break (session);
2799 session_events = session->vep.ev.events;
2800 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2803 events[*num_ev].events |= EPOLLIN;
2804 session_evt_data = session->vep.ev.data.u64;
2805 session->has_rx_evt = 1;
2807 case SESSION_IO_EVT_TX:
2808 sid = e->session_index;
2809 session = vcl_session_get (wrk, sid);
2810 if (vcl_session_is_closed (session))
2812 session_events = session->vep.ev.events;
2813 if (!(EPOLLOUT & session_events))
2816 events[*num_ev].events |= EPOLLOUT;
2817 session_evt_data = session->vep.ev.data.u64;
2818 svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (session) ?
2819 session->ct_tx_fifo : session->tx_fifo);
2821 case SESSION_CTRL_EVT_ACCEPTED:
2822 session = vcl_session_accepted (wrk,
2823 (session_accepted_msg_t *) e->data);
2827 session_events = session->vep.ev.events;
2828 if (!(EPOLLIN & session_events))
2832 events[*num_ev].events |= EPOLLIN;
2833 session_evt_data = session->vep.ev.data.u64;
2835 case SESSION_CTRL_EVT_CONNECTED:
2836 connected_msg = (session_connected_msg_t *) e->data;
2837 sid = vcl_session_connected_handler (wrk, connected_msg);
2838 /* Generate EPOLLOUT because there's no connected event */
2839 session = vcl_session_get (wrk, sid);
2840 if (vcl_session_is_closed (session))
2842 session_events = session->vep.ev.events;
2843 if (!(EPOLLOUT & session_events))
2846 events[*num_ev].events |= EPOLLOUT;
2847 session_evt_data = session->vep.ev.data.u64;
2848 if (session->session_state & STATE_DETACHED)
2849 events[*num_ev].events |= EPOLLHUP;
2851 case SESSION_CTRL_EVT_DISCONNECTED:
2852 disconnected_msg = (session_disconnected_msg_t *) e->data;
2853 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2854 if (vcl_session_is_closed (session))
2856 session_events = session->vep.ev.events;
2858 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2859 session_evt_data = session->vep.ev.data.u64;
2861 case SESSION_CTRL_EVT_RESET:
2862 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2863 session = vcl_session_get (wrk, sid);
2864 if (vcl_session_is_closed (session))
2866 session_events = session->vep.ev.events;
2868 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2869 session_evt_data = session->vep.ev.data.u64;
2871 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2872 vcl_session_unlisten_reply_handler (wrk, e->data);
2874 case SESSION_CTRL_EVT_MIGRATED:
2875 vcl_session_migrated_handler (wrk, e->data);
2877 case SESSION_CTRL_EVT_CLEANUP:
2878 vcl_session_cleanup_handler (wrk, e->data);
2880 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2881 vcl_session_req_worker_update_handler (wrk, e->data);
2883 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2884 vcl_session_worker_update_reply_handler (wrk, e->data);
2886 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2887 vcl_session_app_add_segment_handler (wrk, e->data);
2889 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2890 vcl_session_app_del_segment_handler (wrk, e->data);
2892 case SESSION_CTRL_EVT_APP_WRK_RPC:
2893 vcl_worker_rpc_handler (wrk, e->data);
2896 VDBG (0, "unhandled: %u", e->event_type);
2902 events[*num_ev].data.u64 = session_evt_data;
2903 if (EPOLLONESHOT & session_events)
2905 session = vcl_session_get (wrk, sid);
2906 session->vep.ev.events = 0;
2913 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2914 struct epoll_event *events, u32 maxevents,
2915 double wait_for_time, u32 * num_ev)
2917 svm_msg_q_msg_t *msg;
2921 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2922 goto handle_dequeued;
2924 svm_msg_q_lock (mq);
2925 if (svm_msg_q_is_empty (mq))
2929 svm_msg_q_unlock (mq);
2932 else if (wait_for_time < 0)
2934 svm_msg_q_wait (mq);
2938 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2940 svm_msg_q_unlock (mq);
2945 ASSERT (maxevents > *num_ev);
2946 vcl_mq_dequeue_batch (wrk, mq, ~0);
2947 svm_msg_q_unlock (mq);
2950 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2952 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2953 e = svm_msg_q_msg_data (mq, msg);
2954 if (*num_ev < maxevents)
2955 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2957 vcl_handle_mq_event (wrk, e);
2958 svm_msg_q_free_msg (mq, msg);
2960 vec_reset_length (wrk->mq_msg_vector);
2961 vcl_handle_pending_wrk_updates (wrk);
2966 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2967 int maxevents, u32 n_evts, double wait_for_time)
2969 double wait = 0, start = 0, now;
2973 wait = wait_for_time;
2974 start = clib_time_now (&wrk->clib_time);
2979 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2986 now = clib_time_now (&wrk->clib_time);
2987 wait -= (now - start) * 1e3;
2996 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2997 int maxevents, u32 n_evts, double wait_for_time)
2999 vcl_mq_evt_conn_t *mqc;
3000 int __clib_unused n_read;
3004 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
3006 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
3007 vec_len (wrk->mq_events), wait_for_time);
3008 for (i = 0; i < n_mq_evts; i++)
3010 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
3011 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
3012 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
3014 if (!n_evts && n_mq_evts > 0)
3017 return (int) n_evts;
3021 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3022 int maxevents, double wait_for_time)
3024 vcl_worker_t *wrk = vcl_worker_get_current ();
3025 vcl_session_t *vep_session;
3029 if (PREDICT_FALSE (maxevents <= 0))
3031 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3032 return VPPCOM_EINVAL;
3035 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3037 return VPPCOM_EBADFD;
3039 if (PREDICT_FALSE (!vep_session->is_vep))
3041 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3042 return VPPCOM_EINVAL;
3045 memset (events, 0, sizeof (*events) * maxevents);
3047 if (vec_len (wrk->unhandled_evts_vector))
3049 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3051 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3053 if (n_evts == maxevents)
3055 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3059 vec_reset_length (wrk->unhandled_evts_vector);
3062 if (vcm->cfg.use_mq_eventfd)
3063 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3066 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3071 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3072 void *buffer, uint32_t * buflen)
3074 vcl_worker_t *wrk = vcl_worker_get_current ();
3075 vcl_session_t *session;
3077 u32 *flags = buffer, tmp_flags = 0;
3078 vppcom_endpt_t *ep = buffer;
3080 session = vcl_session_get_w_handle (wrk, session_handle);
3082 return VPPCOM_EBADFD;
3086 case VPPCOM_ATTR_GET_NREAD:
3087 rv = vcl_session_read_ready (session);
3088 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3092 case VPPCOM_ATTR_GET_NWRITE:
3093 rv = vcl_session_write_ready (session);
3094 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3098 case VPPCOM_ATTR_GET_FLAGS:
3099 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3103 (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK) ?
3105 *buflen = sizeof (*flags);
3106 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3107 "is_nonblocking = %u", session_handle, *flags,
3108 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3114 case VPPCOM_ATTR_SET_FLAGS:
3115 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3117 if (*flags & O_NONBLOCK)
3118 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
3120 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
3122 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3123 " is_nonblocking = %u", session_handle, *flags,
3124 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3130 case VPPCOM_ATTR_GET_PEER_ADDR:
3131 if (PREDICT_TRUE (buffer && buflen &&
3132 (*buflen >= sizeof (*ep)) && ep->ip))
3134 ep->is_ip4 = session->transport.is_ip4;
3135 ep->port = session->transport.rmt_port;
3136 if (session->transport.is_ip4)
3137 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3138 sizeof (ip4_address_t));
3140 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3141 sizeof (ip6_address_t));
3142 *buflen = sizeof (*ep);
3143 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3144 "addr = %U, port %u", session_handle, ep->is_ip4,
3145 format_ip46_address, &session->transport.rmt_ip,
3146 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3147 clib_net_to_host_u16 (ep->port));
3153 case VPPCOM_ATTR_GET_LCL_ADDR:
3154 if (PREDICT_TRUE (buffer && buflen &&
3155 (*buflen >= sizeof (*ep)) && ep->ip))
3157 ep->is_ip4 = session->transport.is_ip4;
3158 ep->port = session->transport.lcl_port;
3159 if (session->transport.is_ip4)
3160 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3161 sizeof (ip4_address_t));
3163 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3164 sizeof (ip6_address_t));
3165 *buflen = sizeof (*ep);
3166 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3167 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3168 &session->transport.lcl_ip,
3169 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3170 clib_net_to_host_u16 (ep->port));
3176 case VPPCOM_ATTR_SET_LCL_ADDR:
3177 if (PREDICT_TRUE (buffer && buflen &&
3178 (*buflen >= sizeof (*ep)) && ep->ip))
3180 session->transport.is_ip4 = ep->is_ip4;
3181 session->transport.lcl_port = ep->port;
3182 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3183 *buflen = sizeof (*ep);
3184 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3185 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3186 &session->transport.lcl_ip,
3187 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3188 clib_net_to_host_u16 (ep->port));
3194 case VPPCOM_ATTR_GET_LIBC_EPFD:
3195 rv = session->libc_epfd;
3196 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3199 case VPPCOM_ATTR_SET_LIBC_EPFD:
3200 if (PREDICT_TRUE (buffer && buflen &&
3201 (*buflen == sizeof (session->libc_epfd))))
3203 session->libc_epfd = *(int *) buffer;
3204 *buflen = sizeof (session->libc_epfd);
3206 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3207 session->libc_epfd, *buflen);
3213 case VPPCOM_ATTR_GET_PROTOCOL:
3214 if (buffer && buflen && (*buflen >= sizeof (int)))
3216 *(int *) buffer = session->session_type;
3217 *buflen = sizeof (int);
3219 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3220 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3226 case VPPCOM_ATTR_GET_LISTEN:
3227 if (buffer && buflen && (*buflen >= sizeof (int)))
3229 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3230 VCL_SESS_ATTR_LISTEN);
3231 *buflen = sizeof (int);
3233 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3240 case VPPCOM_ATTR_GET_ERROR:
3241 if (buffer && buflen && (*buflen >= sizeof (int)))
3243 *(int *) buffer = 0;
3244 *buflen = sizeof (int);
3246 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3247 *(int *) buffer, *buflen);
3253 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3254 if (buffer && buflen && (*buflen >= sizeof (u32)))
3258 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3260 svm_fifo_size (session->tx_fifo) :
3261 vcm->cfg.tx_fifo_size);
3262 *buflen = sizeof (u32);
3264 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3265 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3272 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3273 if (buffer && buflen && (*buflen == sizeof (u32)))
3276 session->sndbuf_size = *(u32 *) buffer;
3277 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3278 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3285 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3286 if (buffer && buflen && (*buflen >= sizeof (u32)))
3290 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3292 svm_fifo_size (session->rx_fifo) :
3293 vcm->cfg.rx_fifo_size);
3294 *buflen = sizeof (u32);
3296 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3297 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3303 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3304 if (buffer && buflen && (*buflen == sizeof (u32)))
3307 session->rcvbuf_size = *(u32 *) buffer;
3308 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3309 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3316 case VPPCOM_ATTR_GET_REUSEADDR:
3317 if (buffer && buflen && (*buflen >= sizeof (int)))
3320 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3321 VCL_SESS_ATTR_REUSEADDR);
3322 *buflen = sizeof (int);
3324 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3325 *(int *) buffer, *buflen);
3331 case VPPCOM_ATTR_SET_REUSEADDR:
3332 if (buffer && buflen && (*buflen == sizeof (int)) &&
3333 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3336 if (*(int *) buffer)
3337 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
3339 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
3341 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3342 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEADDR),
3349 case VPPCOM_ATTR_GET_REUSEPORT:
3350 if (buffer && buflen && (*buflen >= sizeof (int)))
3353 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3354 VCL_SESS_ATTR_REUSEPORT);
3355 *buflen = sizeof (int);
3357 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3358 *(int *) buffer, *buflen);
3364 case VPPCOM_ATTR_SET_REUSEPORT:
3365 if (buffer && buflen && (*buflen == sizeof (int)) &&
3366 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3369 if (*(int *) buffer)
3370 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
3372 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
3374 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3375 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEPORT),
3382 case VPPCOM_ATTR_GET_BROADCAST:
3383 if (buffer && buflen && (*buflen >= sizeof (int)))
3386 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3387 VCL_SESS_ATTR_BROADCAST);
3388 *buflen = sizeof (int);
3390 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3391 *(int *) buffer, *buflen);
3397 case VPPCOM_ATTR_SET_BROADCAST:
3398 if (buffer && buflen && (*buflen == sizeof (int)))
3401 if (*(int *) buffer)
3402 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
3404 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
3406 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3407 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_BROADCAST),
3414 case VPPCOM_ATTR_GET_V6ONLY:
3415 if (buffer && buflen && (*buflen >= sizeof (int)))
3418 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3419 VCL_SESS_ATTR_V6ONLY);
3420 *buflen = sizeof (int);
3422 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3423 *(int *) buffer, *buflen);
3429 case VPPCOM_ATTR_SET_V6ONLY:
3430 if (buffer && buflen && (*buflen == sizeof (int)))
3433 if (*(int *) buffer)
3434 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
3436 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
3438 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3439 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_V6ONLY),
3446 case VPPCOM_ATTR_GET_KEEPALIVE:
3447 if (buffer && buflen && (*buflen >= sizeof (int)))
3450 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3451 VCL_SESS_ATTR_KEEPALIVE);
3452 *buflen = sizeof (int);
3454 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3455 *(int *) buffer, *buflen);
3461 case VPPCOM_ATTR_SET_KEEPALIVE:
3462 if (buffer && buflen && (*buflen == sizeof (int)))
3465 if (*(int *) buffer)
3466 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3468 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3470 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3471 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_KEEPALIVE),
3478 case VPPCOM_ATTR_GET_TCP_NODELAY:
3479 if (buffer && buflen && (*buflen >= sizeof (int)))
3482 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3483 VCL_SESS_ATTR_TCP_NODELAY);
3484 *buflen = sizeof (int);
3486 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3487 *(int *) buffer, *buflen);
3493 case VPPCOM_ATTR_SET_TCP_NODELAY:
3494 if (buffer && buflen && (*buflen == sizeof (int)))
3497 if (*(int *) buffer)
3498 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3500 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3502 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3503 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_NODELAY),
3510 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3511 if (buffer && buflen && (*buflen >= sizeof (int)))
3514 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3515 VCL_SESS_ATTR_TCP_KEEPIDLE);
3516 *buflen = sizeof (int);
3518 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3519 *(int *) buffer, *buflen);
3525 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3526 if (buffer && buflen && (*buflen == sizeof (int)))
3529 if (*(int *) buffer)
3530 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3532 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3534 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3535 VCL_SESS_ATTR_TEST (session->attr,
3536 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3542 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3543 if (buffer && buflen && (*buflen >= sizeof (int)))
3546 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3547 VCL_SESS_ATTR_TCP_KEEPINTVL);
3548 *buflen = sizeof (int);
3550 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3551 *(int *) buffer, *buflen);
3557 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3558 if (buffer && buflen && (*buflen == sizeof (int)))
3561 if (*(int *) buffer)
3562 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3564 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3566 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3567 VCL_SESS_ATTR_TEST (session->attr,
3568 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3574 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3575 if (buffer && buflen && (*buflen >= sizeof (u32)))
3578 *(u32 *) buffer = session->user_mss;
3579 *buflen = sizeof (int);
3581 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3582 *(int *) buffer, *buflen);
3588 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3589 if (buffer && buflen && (*buflen == sizeof (u32)))
3592 session->user_mss = *(u32 *) buffer;
3594 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3595 session->user_mss, *buflen);
3601 case VPPCOM_ATTR_SET_SHUT:
3602 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3603 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3604 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3605 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3608 case VPPCOM_ATTR_GET_SHUT:
3609 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3611 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3614 *(int *) buffer = SHUT_RD;
3615 else if (tmp_flags == 2)
3616 *(int *) buffer = SHUT_WR;
3617 else if (tmp_flags == 3)
3618 *(int *) buffer = SHUT_RDWR;
3619 *buflen = sizeof (int);
3622 case VPPCOM_ATTR_SET_CONNECTED:
3623 session->flags |= VCL_SESSION_F_CONNECTED;
3635 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3636 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3638 vcl_worker_t *wrk = vcl_worker_get_current ();
3639 vcl_session_t *session;
3643 rv = vppcom_session_read (session_handle, buffer, buflen);
3644 else if (flags & MSG_PEEK)
3645 rv = vppcom_session_peek (session_handle, buffer, buflen);
3648 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3649 return VPPCOM_EAFNOSUPPORT;
3654 session = vcl_session_get_w_handle (wrk, session_handle);
3655 if (session->transport.is_ip4)
3656 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3657 sizeof (ip4_address_t));
3659 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3660 sizeof (ip6_address_t));
3661 ep->is_ip4 = session->transport.is_ip4;
3662 ep->port = session->transport.rmt_port;
3669 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3670 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3672 vcl_worker_t *wrk = vcl_worker_get_current ();
3675 s = vcl_session_get_w_handle (wrk, session_handle);
3677 return VPPCOM_EBADFD;
3680 return VPPCOM_EINVAL;
3684 if (s->session_type != VPPCOM_PROTO_UDP
3685 || (s->flags & VCL_SESSION_F_CONNECTED))
3686 return VPPCOM_EINVAL;
3688 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3689 if (PREDICT_FALSE (s->session_state == STATE_CLOSED))
3691 vcl_send_session_connect (wrk, s);
3695 s->transport.is_ip4 = ep->is_ip4;
3696 s->transport.rmt_port = ep->port;
3697 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3703 // TBD check the flags and do the right thing
3704 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3707 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3708 s->is_dgram ? 1 : 0));
3712 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3714 vcl_worker_t *wrk = vcl_worker_get_current ();
3715 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3716 u32 i, keep_trying = 1;
3717 svm_msg_q_msg_t msg;
3721 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3724 return VPPCOM_EFAULT;
3728 vcl_session_t *session;
3730 /* Dequeue all events and drop all unhandled io events */
3731 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3733 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3734 vcl_handle_mq_event (wrk, e);
3735 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3737 vec_reset_length (wrk->unhandled_evts_vector);
3739 for (i = 0; i < n_sids; i++)
3741 session = vcl_session_get (wrk, vp[i].sh);
3744 vp[i].revents = POLLHUP;
3751 if (POLLIN & vp[i].events)
3753 rv = vcl_session_read_ready (session);
3756 vp[i].revents |= POLLIN;
3763 case VPPCOM_ECONNRESET:
3764 vp[i].revents = POLLHUP;
3768 vp[i].revents = POLLERR;
3775 if (POLLOUT & vp[i].events)
3777 rv = vcl_session_write_ready (session);
3780 vp[i].revents |= POLLOUT;
3787 case VPPCOM_ECONNRESET:
3788 vp[i].revents = POLLHUP;
3792 vp[i].revents = POLLERR;
3799 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3801 vp[i].revents = POLLNVAL;
3805 if (wait_for_time != -1)
3806 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3808 while ((num_ev == 0) && keep_trying);
3814 vppcom_mq_epoll_fd (void)
3816 vcl_worker_t *wrk = vcl_worker_get_current ();
3817 return wrk->mqs_epfd;
3821 vppcom_session_index (vcl_session_handle_t session_handle)
3823 return session_handle & 0xFFFFFF;
3827 vppcom_session_worker (vcl_session_handle_t session_handle)
3829 return session_handle >> 24;
3833 vppcom_worker_register (void)
3835 if (!vcl_worker_alloc_and_init ())
3836 return VPPCOM_EEXIST;
3838 if (vcl_worker_register_with_vpp ())
3839 return VPPCOM_EEXIST;
3845 vppcom_worker_unregister (void)
3847 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3848 vcl_set_worker_index (~0);
3852 vppcom_worker_index_set (int index)
3854 vcl_set_worker_index (index);
3858 vppcom_worker_index (void)
3860 return vcl_get_worker_index ();
3864 vppcom_worker_mqs_epfd (void)
3866 vcl_worker_t *wrk = vcl_worker_get_current ();
3867 if (!vcm->cfg.use_mq_eventfd)
3869 return wrk->mqs_epfd;
3873 vppcom_session_is_connectable_listener (uint32_t session_handle)
3875 vcl_session_t *session;
3876 vcl_worker_t *wrk = vcl_worker_get_current ();
3877 session = vcl_session_get_w_handle (wrk, session_handle);
3879 return VPPCOM_EBADFD;
3880 return vcl_session_is_connectable_listener (wrk, session);
3884 vppcom_session_listener (uint32_t session_handle)
3886 vcl_worker_t *wrk = vcl_worker_get_current ();
3887 vcl_session_t *listen_session, *session;
3888 session = vcl_session_get_w_handle (wrk, session_handle);
3890 return VPPCOM_EBADFD;
3891 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3892 return VPPCOM_EBADFD;
3893 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3894 if (!listen_session)
3895 return VPPCOM_EBADFD;
3896 return vcl_session_handle (listen_session);
3900 vppcom_session_n_accepted (uint32_t session_handle)
3902 vcl_worker_t *wrk = vcl_worker_get_current ();
3903 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3905 return VPPCOM_EBADFD;
3906 return session->n_accepted_sessions;
3910 vppcom_proto_str (vppcom_proto_t proto)
3912 char const *proto_str;
3916 case VPPCOM_PROTO_TCP:
3919 case VPPCOM_PROTO_UDP:
3922 case VPPCOM_PROTO_TLS:
3925 case VPPCOM_PROTO_QUIC:
3929 proto_str = "UNKNOWN";
3936 vppcom_retval_str (int retval)
3947 st = "VPPCOM_EAGAIN";
3951 st = "VPPCOM_EFAULT";
3955 st = "VPPCOM_ENOMEM";
3959 st = "VPPCOM_EINVAL";
3963 st = "VPPCOM_EBADFD";
3966 case VPPCOM_EAFNOSUPPORT:
3967 st = "VPPCOM_EAFNOSUPPORT";
3970 case VPPCOM_ECONNABORTED:
3971 st = "VPPCOM_ECONNABORTED";
3974 case VPPCOM_ECONNRESET:
3975 st = "VPPCOM_ECONNRESET";
3978 case VPPCOM_ENOTCONN:
3979 st = "VPPCOM_ENOTCONN";
3982 case VPPCOM_ECONNREFUSED:
3983 st = "VPPCOM_ECONNREFUSED";
3986 case VPPCOM_ETIMEDOUT:
3987 st = "VPPCOM_ETIMEDOUT";
3991 st = "UNKNOWN_STATE";
3999 * fd.io coding-style-patch-verification: ON
4002 * eval: (c-set-style "gnu")