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_wait_for_segment (u64 segment_handle)
28 vcl_worker_t *wrk = vcl_worker_get_current ();
29 u32 wait_for_seconds = 10, segment_index;
32 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
35 timeout = clib_time_now (&wrk->clib_time) + wait_for_seconds;
36 while (clib_time_now (&wrk->clib_time) < timeout)
38 segment_index = vcl_segment_table_lookup (segment_handle);
39 if (segment_index != VCL_INVALID_SEGMENT_INDEX)
47 vcl_mq_dequeue_batch (vcl_worker_t * wrk, svm_msg_q_t * mq, u32 n_max_msg)
53 n_msgs = clib_min (svm_msg_q_size (mq), n_max_msg);
54 for (i = 0; i < n_msgs; i++)
56 vec_add2 (wrk->mq_msg_vector, msg, 1);
57 svm_msg_q_sub_w_lock (mq, msg);
63 vppcom_session_state_str (vcl_session_state_t state)
85 case STATE_VPP_CLOSING:
86 st = "STATE_VPP_CLOSING";
89 case STATE_DISCONNECT:
90 st = "STATE_DISCONNECT";
101 case STATE_LISTEN_NO_MQ:
102 st = "STATE_LISTEN_NO_MQ";
106 st = "UNKNOWN_STATE";
114 format_ip4_address (u8 * s, va_list * args)
116 u8 *a = va_arg (*args, u8 *);
117 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
121 format_ip6_address (u8 * s, va_list * args)
123 ip6_address_t *a = va_arg (*args, ip6_address_t *);
124 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
126 i_max_n_zero = ARRAY_LEN (a->as_u16);
128 i_first_zero = i_max_n_zero;
130 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
132 u32 is_zero = a->as_u16[i] == 0;
133 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
139 if ((!is_zero && n_zeros > max_n_zeros)
140 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
142 i_max_n_zero = i_first_zero;
143 max_n_zeros = n_zeros;
144 i_first_zero = ARRAY_LEN (a->as_u16);
149 last_double_colon = 0;
150 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
152 if (i == i_max_n_zero && max_n_zeros > 1)
154 s = format (s, "::");
155 i += max_n_zeros - 1;
156 last_double_colon = 1;
160 s = format (s, "%s%x",
161 (last_double_colon || i == 0) ? "" : ":",
162 clib_net_to_host_u16 (a->as_u16[i]));
163 last_double_colon = 0;
170 /* Format an IP46 address. */
172 format_ip46_address (u8 * s, va_list * args)
174 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
175 ip46_type_t type = va_arg (*args, ip46_type_t);
181 is_ip4 = ip46_address_is_ip4 (ip46);
192 format (s, "%U", format_ip4_address, &ip46->ip4) :
193 format (s, "%U", format_ip6_address, &ip46->ip6);
197 * VPPCOM Utility Functions
201 vcl_send_session_listen (vcl_worker_t * wrk, vcl_session_t * s)
203 app_session_evt_t _app_evt, *app_evt = &_app_evt;
204 session_listen_msg_t *mp;
207 mq = vcl_worker_ctrl_mq (wrk);
208 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_LISTEN);
209 mp = (session_listen_msg_t *) app_evt->evt->data;
210 memset (mp, 0, sizeof (*mp));
211 mp->client_index = wrk->my_client_index;
212 mp->context = s->session_index;
213 mp->wrk_index = wrk->vpp_wrk_index;
214 mp->is_ip4 = s->transport.is_ip4;
215 clib_memcpy_fast (&mp->ip, &s->transport.lcl_ip, sizeof (mp->ip));
216 mp->port = s->transport.lcl_port;
217 mp->proto = s->session_type;
218 app_send_ctrl_evt_to_vpp (mq, app_evt);
222 vcl_send_session_connect (vcl_worker_t * wrk, vcl_session_t * s)
224 app_session_evt_t _app_evt, *app_evt = &_app_evt;
225 session_connect_msg_t *mp;
228 mq = vcl_worker_ctrl_mq (wrk);
229 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_CONNECT);
230 mp = (session_connect_msg_t *) app_evt->evt->data;
231 memset (mp, 0, sizeof (*mp));
232 mp->client_index = wrk->my_client_index;
233 mp->context = s->session_index;
234 mp->wrk_index = wrk->vpp_wrk_index;
235 mp->is_ip4 = s->transport.is_ip4;
236 mp->parent_handle = s->parent_handle;
237 clib_memcpy_fast (&mp->ip, &s->transport.rmt_ip, sizeof (mp->ip));
238 clib_memcpy_fast (&mp->lcl_ip, &s->transport.lcl_ip, sizeof (mp->lcl_ip));
239 mp->port = s->transport.rmt_port;
240 mp->proto = s->session_type;
241 app_send_ctrl_evt_to_vpp (mq, app_evt);
245 vcl_send_session_unlisten (vcl_worker_t * wrk, vcl_session_t * s)
247 app_session_evt_t _app_evt, *app_evt = &_app_evt;
248 session_unlisten_msg_t *mp;
251 mq = vcl_worker_ctrl_mq (wrk);
252 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_UNLISTEN);
253 mp = (session_unlisten_msg_t *) app_evt->evt->data;
254 memset (mp, 0, sizeof (*mp));
255 mp->client_index = wrk->my_client_index;
256 mp->wrk_index = wrk->vpp_wrk_index;
257 mp->handle = s->vpp_handle;
258 mp->context = wrk->wrk_index;
259 app_send_ctrl_evt_to_vpp (mq, app_evt);
263 vcl_send_session_disconnect (vcl_worker_t * wrk, vcl_session_t * s)
265 app_session_evt_t _app_evt, *app_evt = &_app_evt;
266 session_disconnect_msg_t *mp;
269 /* Send to thread that owns the session */
271 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_DISCONNECT);
272 mp = (session_disconnect_msg_t *) app_evt->evt->data;
273 memset (mp, 0, sizeof (*mp));
274 mp->client_index = wrk->my_client_index;
275 mp->handle = s->vpp_handle;
276 app_send_ctrl_evt_to_vpp (mq, app_evt);
280 vcl_send_app_detach (vcl_worker_t * wrk)
282 app_session_evt_t _app_evt, *app_evt = &_app_evt;
283 session_app_detach_msg_t *mp;
286 mq = vcl_worker_ctrl_mq (wrk);
287 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_DETACH);
288 mp = (session_app_detach_msg_t *) app_evt->evt->data;
289 memset (mp, 0, sizeof (*mp));
290 mp->client_index = wrk->my_client_index;
291 app_send_ctrl_evt_to_vpp (mq, app_evt);
295 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
296 session_handle_t handle, int retval)
298 app_session_evt_t _app_evt, *app_evt = &_app_evt;
299 session_accepted_reply_msg_t *rmp;
300 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
301 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
302 rmp->handle = handle;
303 rmp->context = context;
304 rmp->retval = retval;
305 app_send_ctrl_evt_to_vpp (mq, app_evt);
309 vcl_send_session_disconnected_reply (svm_msg_q_t * mq, u32 context,
310 session_handle_t handle, int retval)
312 app_session_evt_t _app_evt, *app_evt = &_app_evt;
313 session_disconnected_reply_msg_t *rmp;
314 app_alloc_ctrl_evt_to_vpp (mq, app_evt,
315 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
316 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
317 rmp->handle = handle;
318 rmp->context = context;
319 rmp->retval = retval;
320 app_send_ctrl_evt_to_vpp (mq, app_evt);
324 vcl_send_session_reset_reply (svm_msg_q_t * mq, u32 context,
325 session_handle_t handle, int retval)
327 app_session_evt_t _app_evt, *app_evt = &_app_evt;
328 session_reset_reply_msg_t *rmp;
329 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_RESET_REPLY);
330 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
331 rmp->handle = handle;
332 rmp->context = context;
333 rmp->retval = retval;
334 app_send_ctrl_evt_to_vpp (mq, app_evt);
338 vcl_send_session_worker_update (vcl_worker_t * wrk, vcl_session_t * s,
341 app_session_evt_t _app_evt, *app_evt = &_app_evt;
342 session_worker_update_msg_t *mp;
345 mq = vcl_session_vpp_evt_q (wrk, s);
346 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_WORKER_UPDATE);
347 mp = (session_worker_update_msg_t *) app_evt->evt->data;
348 mp->client_index = wrk->my_client_index;
349 mp->handle = s->vpp_handle;
350 mp->req_wrk_index = wrk->vpp_wrk_index;
351 mp->wrk_index = wrk_index;
352 app_send_ctrl_evt_to_vpp (mq, app_evt);
356 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp,
359 vcl_session_t *session, *listen_session;
360 svm_fifo_t *rx_fifo, *tx_fifo;
364 session = vcl_session_alloc (wrk);
366 listen_session = vcl_session_get (wrk, ls_index);
367 if (listen_session->vpp_handle != mp->listener_handle)
369 VDBG (0, "ERROR: listener handle %lu does not match session %u",
370 mp->listener_handle, ls_index);
374 if (vcl_wait_for_segment (mp->segment_handle))
376 VDBG (0, "ERROR: segment for session %u couldn't be mounted!",
377 session->session_index);
381 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
382 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
383 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
385 rx_fifo->client_session_index = session->session_index;
386 tx_fifo->client_session_index = session->session_index;
387 rx_fifo->client_thread_index = vcl_get_worker_index ();
388 tx_fifo->client_thread_index = vcl_get_worker_index ();
389 vpp_wrk_index = tx_fifo->master_thread_index;
390 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
391 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
393 session->vpp_handle = mp->handle;
394 session->vpp_thread_index = rx_fifo->master_thread_index;
395 session->rx_fifo = rx_fifo;
396 session->tx_fifo = tx_fifo;
398 session->session_state = STATE_ACCEPT;
399 session->transport.rmt_port = mp->rmt.port;
400 session->transport.is_ip4 = mp->rmt.is_ip4;
401 clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
402 sizeof (ip46_address_t));
404 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
405 session->transport.lcl_port = listen_session->transport.lcl_port;
406 session->transport.lcl_ip = listen_session->transport.lcl_ip;
407 session->session_type = listen_session->session_type;
408 session->is_dgram = vcl_proto_is_dgram (session->session_type);
409 session->listener_index = listen_session->session_index;
410 listen_session->n_accepted_sessions++;
412 VDBG (1, "session %u [0x%llx]: client accept request from %s address %U"
413 " port %d queue %p!", session->session_index, mp->handle,
414 mp->rmt.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->rmt.ip,
415 mp->rmt.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
416 clib_net_to_host_u16 (mp->rmt.port), session->vpp_evt_q);
417 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
419 vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context,
420 session->vpp_handle, 0);
422 return session->session_index;
425 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
426 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
427 VNET_API_ERROR_INVALID_ARGUMENT);
428 vcl_session_free (wrk, session);
429 return VCL_INVALID_SESSION_INDEX;
433 vcl_session_connected_handler (vcl_worker_t * wrk,
434 session_connected_msg_t * mp)
436 u32 session_index, vpp_wrk_index;
437 svm_fifo_t *rx_fifo, *tx_fifo;
438 vcl_session_t *session = 0;
440 session_index = mp->context;
441 session = vcl_session_get (wrk, session_index);
444 VDBG (0, "ERROR: vpp handle 0x%llx has no session index (%u)!",
445 mp->handle, session_index);
446 return VCL_INVALID_SESSION_INDEX;
450 VDBG (0, "ERROR: session index %u: connect failed! %U",
451 session_index, format_api_error, ntohl (mp->retval));
452 session->session_state = STATE_FAILED | STATE_DISCONNECT;
453 session->vpp_handle = mp->handle;
454 return session_index;
457 session->vpp_handle = mp->handle;
458 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
460 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
461 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
462 if (vcl_wait_for_segment (mp->segment_handle))
464 VDBG (0, "segment for session %u couldn't be mounted!",
465 session->session_index);
466 session->session_state = STATE_FAILED | STATE_DISCONNECT;
467 vcl_send_session_disconnect (wrk, session);
468 return session_index;
471 rx_fifo->client_session_index = session_index;
472 tx_fifo->client_session_index = session_index;
473 rx_fifo->client_thread_index = vcl_get_worker_index ();
474 tx_fifo->client_thread_index = vcl_get_worker_index ();
476 vpp_wrk_index = tx_fifo->master_thread_index;
477 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
478 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
482 session->ct_rx_fifo = uword_to_pointer (mp->ct_rx_fifo, svm_fifo_t *);
483 session->ct_tx_fifo = uword_to_pointer (mp->ct_tx_fifo, svm_fifo_t *);
484 if (vcl_wait_for_segment (mp->ct_segment_handle))
486 VDBG (0, "ct segment for session %u couldn't be mounted!",
487 session->session_index);
488 session->session_state = STATE_FAILED | STATE_DISCONNECT;
489 vcl_send_session_disconnect (wrk, session);
490 return session_index;
494 session->rx_fifo = rx_fifo;
495 session->tx_fifo = tx_fifo;
496 session->vpp_thread_index = rx_fifo->master_thread_index;
497 session->transport.is_ip4 = mp->lcl.is_ip4;
498 clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
499 sizeof (session->transport.lcl_ip));
500 session->transport.lcl_port = mp->lcl.port;
501 session->session_state = STATE_CONNECT;
503 /* Add it to lookup table */
504 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
506 VDBG (1, "session %u [0x%llx] connected! rx_fifo %p, refcnt %d, tx_fifo %p,"
507 " refcnt %d", session_index, mp->handle, session->rx_fifo,
508 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
510 return session_index;
514 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
516 vcl_session_msg_t *accepted_msg;
519 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
521 accepted_msg = &session->accept_evts_fifo[i];
522 if (accepted_msg->accepted_msg.handle == handle)
524 accepted_msg->flags |= flags;
532 vcl_session_reset_handler (vcl_worker_t * wrk,
533 session_reset_msg_t * reset_msg)
535 vcl_session_t *session;
538 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
539 session = vcl_session_get (wrk, sid);
542 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
543 return VCL_INVALID_SESSION_INDEX;
546 /* Caught a reset before actually accepting the session */
547 if (session->session_state == STATE_LISTEN)
550 if (!vcl_flag_accepted_session (session, reset_msg->handle,
551 VCL_ACCEPTED_F_RESET))
552 VDBG (0, "session was not accepted!");
553 return VCL_INVALID_SESSION_INDEX;
556 session->session_state = STATE_DISCONNECT;
557 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
562 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
564 vcl_session_t *session;
565 u32 sid = mp->context;
567 session = vcl_session_get (wrk, sid);
570 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
571 format_api_error, mp->retval);
574 session->session_state = STATE_FAILED;
575 session->vpp_handle = mp->handle;
580 VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!",
582 return VCL_INVALID_SESSION_INDEX;
586 session->vpp_handle = mp->handle;
587 session->transport.is_ip4 = mp->lcl_is_ip4;
588 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
589 sizeof (ip46_address_t));
590 session->transport.lcl_port = mp->lcl_port;
591 vcl_session_table_add_listener (wrk, mp->handle, sid);
592 session->session_state = STATE_LISTEN;
594 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
595 vec_validate (wrk->vpp_event_queues, 0);
596 wrk->vpp_event_queues[0] = session->vpp_evt_q;
598 if (session->is_dgram)
600 svm_fifo_t *rx_fifo, *tx_fifo;
601 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
602 rx_fifo = uword_to_pointer (mp->rx_fifo, svm_fifo_t *);
603 rx_fifo->client_session_index = sid;
604 tx_fifo = uword_to_pointer (mp->tx_fifo, svm_fifo_t *);
605 tx_fifo->client_session_index = sid;
606 session->rx_fifo = rx_fifo;
607 session->tx_fifo = tx_fifo;
610 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
615 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
617 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
620 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
621 if (!s || s->session_state != STATE_DISCONNECT)
623 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
628 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
629 s->session_index, mp->handle, format_api_error, ntohl (mp->retval));
631 if (mp->context != wrk->wrk_index)
632 VDBG (0, "wrong context");
634 vcl_session_table_del_vpp_handle (wrk, mp->handle);
635 vcl_session_free (wrk, s);
638 static vcl_session_t *
639 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
641 vcl_session_msg_t *vcl_msg;
642 vcl_session_t *session;
644 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
645 if (PREDICT_FALSE (session != 0))
646 VWRN ("session overlap handle %lu state %u!", msg->handle,
647 session->session_state);
649 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
652 VERR ("couldn't find listen session: listener handle %llx",
653 msg->listener_handle);
657 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
658 vcl_msg->accepted_msg = *msg;
659 /* Session handle points to listener until fully accepted by app */
660 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
665 static vcl_session_t *
666 vcl_session_disconnected_handler (vcl_worker_t * wrk,
667 session_disconnected_msg_t * msg)
669 vcl_session_t *session;
671 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
674 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
678 /* Caught a disconnect before actually accepting the session */
679 if (session->session_state == STATE_LISTEN)
681 if (!vcl_flag_accepted_session (session, msg->handle,
682 VCL_ACCEPTED_F_CLOSED))
683 VDBG (0, "session was not accepted!");
687 session->session_state = STATE_VPP_CLOSING;
692 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
694 session_req_worker_update_msg_t *msg;
697 msg = (session_req_worker_update_msg_t *) data;
698 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
702 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
706 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
708 session_worker_update_reply_msg_t *msg;
711 msg = (session_worker_update_reply_msg_t *) data;
712 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
715 VDBG (0, "unknown handle 0x%llx", msg->handle);
718 if (vcl_wait_for_segment (msg->segment_handle))
720 clib_warning ("segment for session %u couldn't be mounted!",
727 s->rx_fifo = uword_to_pointer (msg->rx_fifo, svm_fifo_t *);
728 s->tx_fifo = uword_to_pointer (msg->tx_fifo, svm_fifo_t *);
729 s->rx_fifo->client_session_index = s->session_index;
730 s->tx_fifo->client_session_index = s->session_index;
731 s->rx_fifo->client_thread_index = wrk->wrk_index;
732 s->tx_fifo->client_thread_index = wrk->wrk_index;
734 s->session_state = STATE_UPDATED;
736 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
737 s->vpp_handle, wrk->wrk_index);
741 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
743 session_disconnected_msg_t *disconnected_msg;
744 vcl_session_t *session;
746 switch (e->event_type)
748 case SESSION_IO_EVT_RX:
749 case SESSION_IO_EVT_TX:
750 session = vcl_session_get (wrk, e->session_index);
751 if (!session || !(session->session_state & STATE_OPEN))
753 vec_add1 (wrk->unhandled_evts_vector, *e);
755 case SESSION_CTRL_EVT_ACCEPTED:
756 vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
758 case SESSION_CTRL_EVT_CONNECTED:
759 vcl_session_connected_handler (wrk,
760 (session_connected_msg_t *) e->data);
762 case SESSION_CTRL_EVT_DISCONNECTED:
763 disconnected_msg = (session_disconnected_msg_t *) e->data;
764 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
767 VDBG (0, "disconnected session %u [0x%llx]", session->session_index,
768 session->vpp_handle);
770 case SESSION_CTRL_EVT_RESET:
771 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
773 case SESSION_CTRL_EVT_BOUND:
774 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
776 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
777 vcl_session_unlisten_reply_handler (wrk, e->data);
779 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
780 vcl_session_req_worker_update_handler (wrk, e->data);
782 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
783 vcl_session_worker_update_reply_handler (wrk, e->data);
786 clib_warning ("unhandled %u", e->event_type);
792 vppcom_wait_for_session_state_change (u32 session_index,
793 vcl_session_state_t state,
796 vcl_worker_t *wrk = vcl_worker_get_current ();
797 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
798 vcl_session_t *volatile session;
804 session = vcl_session_get (wrk, session_index);
805 if (PREDICT_FALSE (!session))
807 return VPPCOM_EBADFD;
809 if (session->session_state & state)
813 if (session->session_state & STATE_FAILED)
815 return VPPCOM_ECONNREFUSED;
818 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
823 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
824 vcl_handle_mq_event (wrk, e);
825 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
827 while (clib_time_now (&wrk->clib_time) < timeout);
829 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
830 vppcom_session_state_str (state));
831 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
833 return VPPCOM_ETIMEDOUT;
837 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
839 vcl_session_state_t state;
843 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
846 vec_foreach (sip, wrk->pending_session_wrk_updates)
848 s = vcl_session_get (wrk, *sip);
849 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
850 state = s->session_state;
851 vppcom_wait_for_session_state_change (s->session_index, STATE_UPDATED, 5);
852 s->session_state = state;
854 vec_reset_length (wrk->pending_session_wrk_updates);
858 vcl_flush_mq_events (void)
860 vcl_worker_t *wrk = vcl_worker_get_current ();
861 svm_msg_q_msg_t *msg;
866 mq = wrk->app_event_queue;
868 vcl_mq_dequeue_batch (wrk, mq, ~0);
869 svm_msg_q_unlock (mq);
871 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
873 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
874 e = svm_msg_q_msg_data (mq, msg);
875 vcl_handle_mq_event (wrk, e);
876 svm_msg_q_free_msg (mq, msg);
878 vec_reset_length (wrk->mq_msg_vector);
879 vcl_handle_pending_wrk_updates (wrk);
883 vppcom_app_session_enable (void)
887 if (vcm->app_state != STATE_APP_ENABLED)
889 vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
890 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
891 if (PREDICT_FALSE (rv))
893 VDBG (0, "application session enable timed out! returning %d (%s)",
894 rv, vppcom_retval_str (rv));
902 vppcom_app_attach (void)
906 vppcom_app_send_attach ();
907 rv = vcl_wait_for_app_state_change (STATE_APP_ATTACHED);
908 if (PREDICT_FALSE (rv))
910 VDBG (0, "application attach timed out! returning %d (%s)", rv,
911 vppcom_retval_str (rv));
919 vppcom_session_unbind (u32 session_handle)
921 vcl_worker_t *wrk = vcl_worker_get_current ();
922 session_accepted_msg_t *accepted_msg;
923 vcl_session_t *session = 0;
924 vcl_session_msg_t *evt;
926 session = vcl_session_get_w_handle (wrk, session_handle);
928 return VPPCOM_EBADFD;
930 /* Flush pending accept events, if any */
931 while (clib_fifo_elts (session->accept_evts_fifo))
933 clib_fifo_sub2 (session->accept_evts_fifo, evt);
934 accepted_msg = &evt->accepted_msg;
935 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
936 vcl_send_session_accepted_reply (session->vpp_evt_q,
937 accepted_msg->context,
938 session->vpp_handle, -1);
940 clib_fifo_free (session->accept_evts_fifo);
942 vcl_send_session_unlisten (wrk, session);
944 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
945 session->vpp_handle);
946 vcl_evt (VCL_EVT_UNBIND, session);
948 session->vpp_handle = ~0;
949 session->session_state = STATE_DISCONNECT;
955 vppcom_session_disconnect (u32 session_handle)
957 vcl_worker_t *wrk = vcl_worker_get_current ();
958 svm_msg_q_t *vpp_evt_q;
959 vcl_session_t *session, *listen_session;
960 vcl_session_state_t state;
963 session = vcl_session_get_w_handle (wrk, session_handle);
965 return VPPCOM_EBADFD;
967 vpp_handle = session->vpp_handle;
968 state = session->session_state;
970 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
971 vpp_handle, state, vppcom_session_state_str (state));
973 if (PREDICT_FALSE (state & STATE_LISTEN))
975 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
976 return VPPCOM_EBADFD;
979 if (state & STATE_VPP_CLOSING)
981 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
982 vcl_send_session_disconnected_reply (vpp_evt_q, wrk->my_client_index,
984 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
985 session->session_index, vpp_handle);
989 VDBG (1, "session %u [0x%llx]: sending disconnect...",
990 session->session_index, vpp_handle);
991 vcl_send_session_disconnect (wrk, session);
994 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
996 listen_session = vcl_session_get (wrk, session->listener_index);
997 listen_session->n_accepted_sessions--;
1006 * Notify vpp of the disconnect and mark the worker as free. If we're the
1007 * last worker, do a full cleanup otherwise, since we're probably a forked
1008 * child, avoid syscalls as much as possible. We might've lost privileges.
1011 vppcom_app_exit (void)
1013 if (!pool_elts (vcm->workers))
1015 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1016 vcl_set_worker_index (~0);
1017 vcl_elog_stop (vcm);
1018 if (vec_len (vcm->workers) == 1)
1019 vppcom_disconnect_from_vpp ();
1021 vl_client_send_disconnect (1 /* vpp should cleanup */ );
1025 * VPPCOM Public API functions
1028 vppcom_app_create (char *app_name)
1030 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1035 VDBG (1, "already initialized");
1036 return VPPCOM_EEXIST;
1040 vppcom_cfg (&vcm->cfg);
1041 vcl_cfg = &vcm->cfg;
1043 vcm->main_cpu = pthread_self ();
1044 vcm->main_pid = getpid ();
1045 vcm->app_name = format (0, "%s", app_name);
1046 vppcom_init_error_string_table ();
1047 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1048 20 /* timeout in secs */ );
1049 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1050 clib_spinlock_init (&vcm->workers_lock);
1051 clib_rwlock_init (&vcm->segment_table_lock);
1052 atexit (vppcom_app_exit);
1054 /* Allocate default worker */
1055 vcl_worker_alloc_and_init ();
1057 /* API hookup and connect to VPP */
1058 vppcom_api_hookup ();
1059 vcl_elog_init (vcm);
1060 vcm->app_state = STATE_APP_START;
1061 rv = vppcom_connect_to_vpp (app_name);
1064 VERR ("couldn't connect to VPP!");
1067 VDBG (0, "sending session enable");
1068 rv = vppcom_app_session_enable ();
1071 VERR ("vppcom_app_session_enable() failed!");
1075 VDBG (0, "sending app attach");
1076 rv = vppcom_app_attach ();
1079 VERR ("vppcom_app_attach() failed!");
1083 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1084 vcm->workers[0].my_client_index, vcm->workers[0].my_client_index);
1090 vppcom_app_destroy (void)
1093 f64 orig_app_timeout;
1095 if (!pool_elts (vcm->workers))
1098 vcl_evt (VCL_EVT_DETACH, vcm);
1100 if (pool_elts (vcm->workers) == 1)
1102 vcl_send_app_detach (vcl_worker_get_current ());
1103 orig_app_timeout = vcm->cfg.app_timeout;
1104 vcm->cfg.app_timeout = 2.0;
1105 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
1106 vcm->cfg.app_timeout = orig_app_timeout;
1107 if (PREDICT_FALSE (rv))
1108 VDBG (0, "application detach timed out! returning %d (%s)", rv,
1109 vppcom_retval_str (rv));
1110 vec_free (vcm->app_name);
1111 vcl_worker_cleanup (vcl_worker_get_current (), 0 /* notify vpp */ );
1115 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1118 vcl_set_worker_index (~0);
1119 vcl_elog_stop (vcm);
1120 vl_client_disconnect_from_vlib ();
1124 vppcom_session_create (u8 proto, u8 is_nonblocking)
1126 vcl_worker_t *wrk = vcl_worker_get_current ();
1127 vcl_session_t *session;
1129 session = vcl_session_alloc (wrk);
1131 session->session_type = proto;
1132 session->session_state = STATE_START;
1133 session->vpp_handle = ~0;
1134 session->is_dgram = vcl_proto_is_dgram (proto);
1137 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
1139 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1140 is_nonblocking, session_index);
1142 VDBG (0, "created session %u", session->session_index);
1144 return vcl_session_handle (session);
1148 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * session,
1149 vcl_session_handle_t sh, u8 do_disconnect)
1151 vcl_session_state_t state;
1152 u32 next_sh, vep_sh;
1157 is_vep = session->is_vep;
1158 next_sh = session->vep.next_sh;
1159 vep_sh = session->vep.vep_sh;
1160 state = session->session_state;
1161 vpp_handle = session->vpp_handle;
1163 VDBG (1, "session %u [0x%llx] closing", session->session_index, vpp_handle);
1167 while (next_sh != ~0)
1169 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1170 if (PREDICT_FALSE (rv < 0))
1171 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1172 " failed! rv %d (%s)", vpp_handle, next_sh, vep_sh, rv,
1173 vppcom_retval_str (rv));
1175 next_sh = session->vep.next_sh;
1180 if (session->is_vep_session)
1182 rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, sh, 0);
1184 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1185 "failed! rv %d (%s)", session->session_index, vpp_handle,
1186 vep_sh, rv, vppcom_retval_str (rv));
1191 VDBG (1, "session %u [0x%llx] disconnect skipped",
1192 session->session_index, vpp_handle);
1196 if (state & STATE_LISTEN)
1198 rv = vppcom_session_unbind (sh);
1199 if (PREDICT_FALSE (rv < 0))
1200 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1201 "rv %d (%s)", session->session_index, vpp_handle, rv,
1202 vppcom_retval_str (rv));
1205 else if ((state & STATE_OPEN)
1206 || (vcl_session_is_connectable_listener (wrk, session)))
1208 rv = vppcom_session_disconnect (sh);
1209 if (PREDICT_FALSE (rv < 0))
1210 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1211 " rv %d (%s)", session->session_index, vpp_handle,
1212 rv, vppcom_retval_str (rv));
1214 else if (state == STATE_DISCONNECT)
1216 svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, session);
1217 vcl_send_session_reset_reply (mq, wrk->my_client_index,
1218 session->vpp_handle, 0);
1222 VDBG (0, "session %u [0x%llx] removed", session->session_index, vpp_handle);
1225 vcl_session_table_del_vpp_handle (wrk, vpp_handle);
1226 vcl_session_free (wrk, session);
1227 vcl_evt (VCL_EVT_CLOSE, session, rv);
1233 vppcom_session_close (uint32_t session_handle)
1235 vcl_worker_t *wrk = vcl_worker_get_current ();
1236 vcl_session_t *session;
1238 session = vcl_session_get_w_handle (wrk, session_handle);
1240 return VPPCOM_EBADFD;
1241 return vcl_session_cleanup (wrk, session, session_handle,
1242 1 /* do_disconnect */ );
1246 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1248 vcl_worker_t *wrk = vcl_worker_get_current ();
1249 vcl_session_t *session = 0;
1252 return VPPCOM_EINVAL;
1254 session = vcl_session_get_w_handle (wrk, session_handle);
1256 return VPPCOM_EBADFD;
1258 if (session->is_vep)
1260 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1261 session->session_index);
1262 return VPPCOM_EBADFD;
1265 session->transport.is_ip4 = ep->is_ip4;
1267 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1268 sizeof (ip4_address_t));
1270 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1271 sizeof (ip6_address_t));
1272 session->transport.lcl_port = ep->port;
1274 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1275 "proto %s", session->session_index, session_handle,
1276 session->transport.is_ip4 ? "IPv4" : "IPv6",
1277 format_ip46_address, &session->transport.lcl_ip,
1278 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1279 clib_net_to_host_u16 (session->transport.lcl_port),
1280 vppcom_proto_str (session->session_type));
1281 vcl_evt (VCL_EVT_BIND, session);
1283 if (session->session_type == VPPCOM_PROTO_UDP)
1284 vppcom_session_listen (session_handle, 10);
1290 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1292 vcl_worker_t *wrk = vcl_worker_get_current ();
1293 vcl_session_t *listen_session = 0;
1294 u64 listen_vpp_handle;
1297 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1298 if (!listen_session || listen_session->is_vep)
1299 return VPPCOM_EBADFD;
1301 if (q_len == 0 || q_len == ~0)
1302 q_len = vcm->cfg.listen_queue_size;
1304 listen_vpp_handle = listen_session->vpp_handle;
1305 if (listen_session->session_state & STATE_LISTEN)
1307 VDBG (0, "session %u [0x%llx]: already in listen state!",
1308 listen_sh, listen_vpp_handle);
1312 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1315 * Send listen request to vpp and wait for reply
1317 vcl_send_session_listen (wrk, listen_session);
1318 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1320 vcm->cfg.session_timeout);
1322 if (PREDICT_FALSE (rv))
1324 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1325 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1326 listen_sh, listen_session->vpp_handle, rv,
1327 vppcom_retval_str (rv));
1335 vppcom_session_tls_add_cert (uint32_t session_handle, char *cert,
1339 vcl_worker_t *wrk = vcl_worker_get_current ();
1340 vcl_session_t *session = 0;
1342 session = vcl_session_get_w_handle (wrk, session_handle);
1344 return VPPCOM_EBADFD;
1346 if (cert_len == 0 || cert_len == ~0)
1347 return VPPCOM_EBADFD;
1350 * Send listen request to vpp and wait for reply
1352 vppcom_send_application_tls_cert_add (session, cert, cert_len);
1353 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1354 vcl_wait_for_app_state_change (STATE_APP_READY);
1360 vppcom_session_tls_add_key (uint32_t session_handle, char *key,
1364 vcl_worker_t *wrk = vcl_worker_get_current ();
1365 vcl_session_t *session = 0;
1367 session = vcl_session_get_w_handle (wrk, session_handle);
1369 return VPPCOM_EBADFD;
1371 if (key_len == 0 || key_len == ~0)
1372 return VPPCOM_EBADFD;
1374 vppcom_send_application_tls_key_add (session, key, key_len);
1375 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1376 vcl_wait_for_app_state_change (STATE_APP_READY);
1381 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1385 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1387 return VPPCOM_EBADFD;
1390 if ((ls->session_state != STATE_LISTEN)
1391 && (!vcl_session_is_connectable_listener (wrk, ls)))
1394 "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1395 " (%s)", ls->vpp_handle, ls->session_state,
1396 vppcom_session_state_str (ls->session_state));
1397 return VPPCOM_EBADFD;
1403 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1405 if (!strcmp (proto_str, "TCP"))
1406 *proto = VPPCOM_PROTO_TCP;
1407 else if (!strcmp (proto_str, "tcp"))
1408 *proto = VPPCOM_PROTO_TCP;
1409 else if (!strcmp (proto_str, "UDP"))
1410 *proto = VPPCOM_PROTO_UDP;
1411 else if (!strcmp (proto_str, "udp"))
1412 *proto = VPPCOM_PROTO_UDP;
1413 else if (!strcmp (proto_str, "UDPC"))
1414 *proto = VPPCOM_PROTO_UDPC;
1415 else if (!strcmp (proto_str, "udpc"))
1416 *proto = VPPCOM_PROTO_UDPC;
1417 else if (!strcmp (proto_str, "SCTP"))
1418 *proto = VPPCOM_PROTO_SCTP;
1419 else if (!strcmp (proto_str, "sctp"))
1420 *proto = VPPCOM_PROTO_SCTP;
1421 else if (!strcmp (proto_str, "TLS"))
1422 *proto = VPPCOM_PROTO_TLS;
1423 else if (!strcmp (proto_str, "tls"))
1424 *proto = VPPCOM_PROTO_TLS;
1425 else if (!strcmp (proto_str, "QUIC"))
1426 *proto = VPPCOM_PROTO_QUIC;
1427 else if (!strcmp (proto_str, "quic"))
1428 *proto = VPPCOM_PROTO_QUIC;
1435 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1438 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1439 vcl_worker_t *wrk = vcl_worker_get_current ();
1440 session_accepted_msg_t accepted_msg;
1441 vcl_session_t *listen_session = 0;
1442 vcl_session_t *client_session = 0;
1443 vcl_session_msg_t *evt;
1444 svm_msg_q_msg_t msg;
1449 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1450 if (!listen_session)
1451 return VPPCOM_EBADFD;
1453 listen_session_index = listen_session->session_index;
1454 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1457 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1459 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1460 accept_flags = evt->flags;
1461 accepted_msg = evt->accepted_msg;
1465 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1466 VCL_SESS_ATTR_NONBLOCK);
1469 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1470 return VPPCOM_EAGAIN;
1472 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1473 return VPPCOM_EAGAIN;
1475 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1476 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1478 VDBG (0, "discarded event: %u", e->event_type);
1479 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1482 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1483 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1489 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1490 listen_session_index);
1491 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1492 return VPPCOM_ECONNABORTED;
1494 listen_session = vcl_session_get (wrk, listen_session_index);
1495 client_session = vcl_session_get (wrk, client_session_index);
1497 if (flags & O_NONBLOCK)
1498 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1500 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1501 " flags %d, is_nonblocking %u", listen_session->session_index,
1502 listen_session->vpp_handle, client_session_index,
1503 client_session->vpp_handle, flags,
1504 VCL_SESS_ATTR_TEST (client_session->attr, VCL_SESS_ATTR_NONBLOCK));
1508 ep->is_ip4 = client_session->transport.is_ip4;
1509 ep->port = client_session->transport.rmt_port;
1510 if (client_session->transport.is_ip4)
1511 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1512 sizeof (ip4_address_t));
1514 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1515 sizeof (ip6_address_t));
1518 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1519 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1520 client_session_index, client_session->vpp_handle,
1521 format_ip46_address, &client_session->transport.rmt_ip,
1522 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1523 clib_net_to_host_u16 (client_session->transport.rmt_port),
1524 format_ip46_address, &client_session->transport.lcl_ip,
1525 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1526 clib_net_to_host_u16 (client_session->transport.lcl_port));
1527 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1528 client_session_index);
1531 * Session might have been closed already
1535 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1536 client_session->session_state = STATE_VPP_CLOSING;
1537 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1538 client_session->session_state = STATE_DISCONNECT;
1540 return vcl_session_handle (client_session);
1544 vcl_ip_copy_from_ep (ip46_address_t * ip, vppcom_endpt_t * ep)
1547 clib_memcpy_fast (&ip->ip4, ep->ip, sizeof (ip4_address_t));
1549 clib_memcpy_fast (&ip->ip6, ep->ip, sizeof (ip6_address_t));
1553 vcl_ip_copy_to_ep (ip46_address_t * ip, vppcom_endpt_t * ep, u8 is_ip4)
1555 ep->is_ip4 = is_ip4;
1557 clib_memcpy_fast (ep->ip, &ip->ip4, sizeof (ip4_address_t));
1559 clib_memcpy_fast (ep->ip, &ip->ip6, sizeof (ip6_address_t));
1563 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1565 vcl_worker_t *wrk = vcl_worker_get_current ();
1566 vcl_session_t *session = 0;
1570 session = vcl_session_get_w_handle (wrk, session_handle);
1572 return VPPCOM_EBADFD;
1573 session_index = session->session_index;
1575 if (PREDICT_FALSE (session->is_vep))
1577 VDBG (0, "ERROR: cannot connect epoll session %u!",
1578 session->session_index);
1579 return VPPCOM_EBADFD;
1582 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1584 VDBG (0, "session handle %u [0x%llx]: session already "
1585 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1586 session_handle, session->vpp_handle,
1587 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1588 &session->transport.rmt_ip, session->transport.is_ip4 ?
1589 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1590 clib_net_to_host_u16 (session->transport.rmt_port),
1591 vppcom_proto_str (session->session_type), session->session_state,
1592 vppcom_session_state_str (session->session_state));
1596 session->transport.is_ip4 = server_ep->is_ip4;
1597 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1598 session->transport.rmt_port = server_ep->port;
1599 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1601 VDBG (0, "session handle %u: connecting to server %s %U "
1602 "port %d proto %s", session_handle,
1603 session->transport.is_ip4 ? "IPv4" : "IPv6",
1604 format_ip46_address,
1605 &session->transport.rmt_ip, session->transport.is_ip4 ?
1606 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1607 clib_net_to_host_u16 (session->transport.rmt_port),
1608 vppcom_proto_str (session->session_type));
1610 vcl_send_session_connect (wrk, session);
1612 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK))
1613 return VPPCOM_EINPROGRESS;
1616 * Wait for reply from vpp if blocking
1618 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1619 vcm->cfg.session_timeout);
1621 session = vcl_session_get (wrk, session_index);
1622 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1623 session->vpp_handle, rv ? "failed" : "succeeded");
1629 vppcom_session_stream_connect (uint32_t session_handle,
1630 uint32_t parent_session_handle)
1632 vcl_worker_t *wrk = vcl_worker_get_current ();
1633 vcl_session_t *session, *parent_session;
1634 u32 session_index, parent_session_index;
1637 session = vcl_session_get_w_handle (wrk, session_handle);
1639 return VPPCOM_EBADFD;
1640 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1641 if (!parent_session)
1642 return VPPCOM_EBADFD;
1644 session_index = session->session_index;
1645 parent_session_index = parent_session->session_index;
1646 if (PREDICT_FALSE (session->is_vep))
1648 VDBG (0, "ERROR: cannot connect epoll session %u!",
1649 session->session_index);
1650 return VPPCOM_EBADFD;
1653 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1655 VDBG (0, "session handle %u [0x%llx]: session already "
1656 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1657 session_handle, session->vpp_handle,
1658 parent_session_handle, parent_session->vpp_handle,
1659 vppcom_proto_str (session->session_type), session->session_state,
1660 vppcom_session_state_str (session->session_state));
1664 /* Connect to quic session specifics */
1665 session->transport.is_ip4 = parent_session->transport.is_ip4;
1666 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1667 session->transport.rmt_port = 0;
1668 session->parent_handle = parent_session->vpp_handle;
1670 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1671 session_handle, parent_session_handle, parent_session->vpp_handle);
1674 * Send connect request and wait for reply from vpp
1676 vcl_send_session_connect (wrk, session);
1677 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1678 vcm->cfg.session_timeout);
1680 session->listener_index = parent_session_index;
1681 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1683 parent_session->n_accepted_sessions++;
1685 session = vcl_session_get (wrk, session_index);
1686 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1687 session->vpp_handle, rv ? "failed" : "succeeded");
1693 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1695 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1699 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1702 vcl_worker_t *wrk = vcl_worker_get_current ();
1703 int n_read = 0, is_nonblocking;
1704 vcl_session_t *s = 0;
1705 svm_fifo_t *rx_fifo;
1706 svm_msg_q_msg_t msg;
1711 if (PREDICT_FALSE (!buf))
1712 return VPPCOM_EINVAL;
1714 s = vcl_session_get_w_handle (wrk, session_handle);
1715 if (PREDICT_FALSE (!s || s->is_vep))
1716 return VPPCOM_EBADFD;
1718 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1720 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1721 s->session_index, s->vpp_handle, s->session_state,
1722 vppcom_session_state_str (s->session_state));
1723 return vcl_session_closed_error (s);
1726 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1727 is_ct = vcl_session_is_ct (s);
1728 mq = wrk->app_event_queue;
1729 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1732 if (svm_fifo_is_empty_cons (rx_fifo))
1736 if (vcl_session_is_closing (s))
1737 return vcl_session_closing_error (s);
1738 svm_fifo_unset_event (s->rx_fifo);
1739 return VPPCOM_EWOULDBLOCK;
1741 while (svm_fifo_is_empty_cons (rx_fifo))
1743 if (vcl_session_is_closing (s))
1744 return vcl_session_closing_error (s);
1746 svm_fifo_unset_event (s->rx_fifo);
1747 svm_msg_q_lock (mq);
1748 if (svm_msg_q_is_empty (mq))
1749 svm_msg_q_wait (mq);
1751 svm_msg_q_sub_w_lock (mq, &msg);
1752 e = svm_msg_q_msg_data (mq, &msg);
1753 svm_msg_q_unlock (mq);
1754 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1755 vcl_handle_mq_event (wrk, e);
1756 svm_msg_q_free_msg (mq, &msg);
1761 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1763 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1765 if (svm_fifo_is_empty_cons (rx_fifo))
1766 svm_fifo_unset_event (s->rx_fifo);
1768 /* Cut-through sessions might request tx notifications on rx fifos */
1769 if (PREDICT_FALSE (rx_fifo->want_deq_ntf))
1771 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1772 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1773 svm_fifo_reset_has_deq_ntf (s->rx_fifo);
1776 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1777 s->vpp_handle, n_read, rx_fifo);
1783 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1785 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1789 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1791 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1795 vppcom_session_read_segments (uint32_t session_handle,
1796 vppcom_data_segments_t ds)
1798 vcl_worker_t *wrk = vcl_worker_get_current ();
1799 int n_read = 0, is_nonblocking;
1800 vcl_session_t *s = 0;
1801 svm_fifo_t *rx_fifo;
1802 svm_msg_q_msg_t msg;
1807 s = vcl_session_get_w_handle (wrk, session_handle);
1808 if (PREDICT_FALSE (!s || s->is_vep))
1809 return VPPCOM_EBADFD;
1811 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1812 return vcl_session_closed_error (s);
1814 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1815 is_ct = vcl_session_is_ct (s);
1816 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1817 rx_fifo = s->rx_fifo;
1821 svm_fifo_unset_event (s->rx_fifo);
1823 if (svm_fifo_is_empty_cons (rx_fifo))
1827 svm_fifo_unset_event (rx_fifo);
1828 return VPPCOM_EWOULDBLOCK;
1830 while (svm_fifo_is_empty_cons (rx_fifo))
1832 if (vcl_session_is_closing (s))
1833 return vcl_session_closing_error (s);
1835 svm_fifo_unset_event (rx_fifo);
1836 svm_msg_q_lock (mq);
1837 if (svm_msg_q_is_empty (mq))
1838 svm_msg_q_wait (mq);
1840 svm_msg_q_sub_w_lock (mq, &msg);
1841 e = svm_msg_q_msg_data (mq, &msg);
1842 svm_msg_q_unlock (mq);
1843 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1844 vcl_handle_mq_event (wrk, e);
1845 svm_msg_q_free_msg (mq, &msg);
1849 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_seg_t *) ds);
1850 svm_fifo_unset_event (rx_fifo);
1856 vppcom_session_free_segments (uint32_t session_handle,
1857 vppcom_data_segments_t ds)
1859 vcl_worker_t *wrk = vcl_worker_get_current ();
1862 s = vcl_session_get_w_handle (wrk, session_handle);
1863 if (PREDICT_FALSE (!s || s->is_vep))
1866 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_seg_t *) ds);
1870 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
1872 u32 first_copy = clib_min (ds[0].len, max_bytes);
1873 clib_memcpy_fast (buf, ds[0].data, first_copy);
1874 if (first_copy < max_bytes)
1876 clib_memcpy_fast (buf + first_copy, ds[1].data,
1877 clib_min (ds[1].len, max_bytes - first_copy));
1883 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1885 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
1889 vppcom_session_write_inline (uint32_t session_handle, void *buf, size_t n,
1892 vcl_worker_t *wrk = vcl_worker_get_current ();
1893 int n_write, is_nonblocking;
1894 vcl_session_t *s = 0;
1895 session_evt_type_t et;
1896 svm_msg_q_msg_t msg;
1897 svm_fifo_t *tx_fifo;
1902 if (PREDICT_FALSE (!buf || n == 0))
1903 return VPPCOM_EINVAL;
1905 s = vcl_session_get_w_handle (wrk, session_handle);
1906 if (PREDICT_FALSE (!s))
1907 return VPPCOM_EBADFD;
1909 if (PREDICT_FALSE (s->is_vep))
1911 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
1912 " session!", s->session_index, s->vpp_handle);
1913 return VPPCOM_EBADFD;
1916 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1918 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
1919 s->session_index, s->vpp_handle, s->session_state,
1920 vppcom_session_state_str (s->session_state));
1921 return vcl_session_closed_error (s);;
1924 is_ct = vcl_session_is_ct (s);
1925 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
1926 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1928 mq = wrk->app_event_queue;
1929 if (svm_fifo_is_full_prod (tx_fifo))
1933 return VPPCOM_EWOULDBLOCK;
1935 while (svm_fifo_is_full_prod (tx_fifo))
1937 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
1938 if (vcl_session_is_closing (s))
1939 return vcl_session_closing_error (s);
1940 svm_msg_q_lock (mq);
1941 if (svm_msg_q_is_empty (mq))
1942 svm_msg_q_wait (mq);
1944 svm_msg_q_sub_w_lock (mq, &msg);
1945 e = svm_msg_q_msg_data (mq, &msg);
1946 svm_msg_q_unlock (mq);
1948 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
1949 vcl_handle_mq_event (wrk, e);
1950 svm_msg_q_free_msg (mq, &msg);
1954 et = SESSION_IO_EVT_TX;
1955 if (is_flush && !is_ct)
1956 et = SESSION_IO_EVT_TX_FLUSH;
1959 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
1960 s->vpp_evt_q, buf, n, et,
1961 0 /* do_evt */ , SVM_Q_WAIT);
1963 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
1964 0 /* do_evt */ , SVM_Q_WAIT);
1966 if (svm_fifo_set_event (s->tx_fifo))
1967 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
1970 ASSERT (n_write > 0);
1972 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
1973 s->vpp_handle, n_write);
1979 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
1981 return vppcom_session_write_inline (session_handle, buf, n,
1986 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
1988 return vppcom_session_write_inline (session_handle, buf, n,
1992 #define vcl_fifo_rx_evt_valid_or_break(_s) \
1993 if (PREDICT_FALSE (!_s->rx_fifo)) \
1995 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
1997 if (!vcl_session_is_ct (_s)) \
1999 svm_fifo_unset_event (_s->rx_fifo); \
2000 if (svm_fifo_is_empty (_s->rx_fifo)) \
2003 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2005 svm_fifo_unset_event (_s->ct_rx_fifo); \
2006 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2012 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2013 unsigned long n_bits, unsigned long *read_map,
2014 unsigned long *write_map,
2015 unsigned long *except_map, u32 * bits_set)
2017 session_disconnected_msg_t *disconnected_msg;
2018 session_connected_msg_t *connected_msg;
2019 vcl_session_t *session;
2022 switch (e->event_type)
2024 case SESSION_IO_EVT_RX:
2025 sid = e->session_index;
2026 session = vcl_session_get (wrk, sid);
2029 vcl_fifo_rx_evt_valid_or_break (session);
2030 if (sid < n_bits && read_map)
2032 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2036 case SESSION_IO_EVT_TX:
2037 sid = e->session_index;
2038 session = vcl_session_get (wrk, sid);
2041 if (sid < n_bits && write_map)
2043 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2047 case SESSION_CTRL_EVT_ACCEPTED:
2048 session = vcl_session_accepted (wrk,
2049 (session_accepted_msg_t *) e->data);
2052 sid = session->session_index;
2053 if (sid < n_bits && read_map)
2055 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2059 case SESSION_CTRL_EVT_CONNECTED:
2060 connected_msg = (session_connected_msg_t *) e->data;
2061 sid = vcl_session_connected_handler (wrk, connected_msg);
2062 if (sid == VCL_INVALID_SESSION_INDEX)
2064 if (sid < n_bits && write_map)
2066 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2070 case SESSION_CTRL_EVT_DISCONNECTED:
2071 disconnected_msg = (session_disconnected_msg_t *) e->data;
2072 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2075 sid = session->session_index;
2076 if (sid < n_bits && except_map)
2078 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2082 case SESSION_CTRL_EVT_RESET:
2083 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2084 if (sid < n_bits && except_map)
2086 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2090 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2091 vcl_session_unlisten_reply_handler (wrk, e->data);
2093 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2094 vcl_session_worker_update_reply_handler (wrk, e->data);
2096 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2097 vcl_session_req_worker_update_handler (wrk, e->data);
2100 clib_warning ("unhandled: %u", e->event_type);
2106 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2107 unsigned long n_bits, unsigned long *read_map,
2108 unsigned long *write_map, unsigned long *except_map,
2109 double time_to_wait, u32 * bits_set)
2111 svm_msg_q_msg_t *msg;
2115 svm_msg_q_lock (mq);
2116 if (svm_msg_q_is_empty (mq))
2120 svm_msg_q_unlock (mq);
2126 svm_msg_q_unlock (mq);
2129 else if (time_to_wait < 0)
2131 svm_msg_q_wait (mq);
2135 if (svm_msg_q_timedwait (mq, time_to_wait))
2137 svm_msg_q_unlock (mq);
2142 vcl_mq_dequeue_batch (wrk, mq, ~0);
2143 svm_msg_q_unlock (mq);
2145 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2147 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2148 e = svm_msg_q_msg_data (mq, msg);
2149 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2150 except_map, bits_set);
2151 svm_msg_q_free_msg (mq, msg);
2153 vec_reset_length (wrk->mq_msg_vector);
2154 vcl_handle_pending_wrk_updates (wrk);
2159 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2160 vcl_si_set * read_map, vcl_si_set * write_map,
2161 vcl_si_set * except_map, double time_to_wait,
2164 double wait = 0, start = 0;
2168 wait = time_to_wait;
2169 start = clib_time_now (&wrk->clib_time);
2174 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2175 write_map, except_map, wait, bits_set);
2181 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2189 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2190 vcl_si_set * read_map, vcl_si_set * write_map,
2191 vcl_si_set * except_map, double time_to_wait,
2194 vcl_mq_evt_conn_t *mqc;
2195 int __clib_unused n_read;
2199 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2200 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2201 vec_len (wrk->mq_events), time_to_wait);
2202 for (i = 0; i < n_mq_evts; i++)
2204 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2205 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2206 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2207 except_map, 0, bits_set);
2210 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2214 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2215 vcl_si_set * except_map, double time_to_wait)
2217 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2218 vcl_worker_t *wrk = vcl_worker_get_current ();
2219 vcl_session_t *session = 0;
2222 if (n_bits && read_map)
2224 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2225 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2226 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2227 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2229 if (n_bits && write_map)
2231 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2232 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2233 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2234 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2236 if (n_bits && except_map)
2238 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2239 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2240 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2241 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2251 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2252 if (!(session = vcl_session_get (wrk, sid)))
2254 if (except_map && sid < minbits)
2255 clib_bitmap_set_no_check (except_map, sid, 1);
2259 rv = svm_fifo_is_full_prod (session->tx_fifo);
2262 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2266 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2273 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2274 if (!(session = vcl_session_get (wrk, sid)))
2276 if (except_map && sid < minbits)
2277 clib_bitmap_set_no_check (except_map, sid, 1);
2281 rv = vcl_session_read_ready (session);
2284 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2292 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2294 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2295 read_map, write_map, except_map, &bits_set);
2297 vec_reset_length (wrk->unhandled_evts_vector);
2299 if (vcm->cfg.use_mq_eventfd)
2300 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2301 time_to_wait, &bits_set);
2303 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2304 time_to_wait, &bits_set);
2310 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2312 vcl_session_t *session;
2313 vppcom_epoll_t *vep;
2314 u32 sh = vep_handle;
2316 if (VPPCOM_DEBUG <= 2)
2319 session = vcl_session_get_w_handle (wrk, vep_handle);
2320 if (PREDICT_FALSE (!session))
2322 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2325 if (PREDICT_FALSE (!session->is_vep))
2327 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2330 vep = &session->vep;
2331 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2334 " is_vep_session = %u\n"
2335 " next_sh = 0x%x (%u)\n"
2336 "}\n", vep_handle, session->is_vep, session->is_vep_session,
2337 vep->next_sh, vep->next_sh);
2339 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2341 session = vcl_session_get_w_handle (wrk, sh);
2342 if (PREDICT_FALSE (!session))
2344 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2347 if (PREDICT_FALSE (session->is_vep))
2349 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2351 else if (PREDICT_FALSE (!session->is_vep_session))
2353 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2356 vep = &session->vep;
2357 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2358 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2359 sh, session->vep.vep_sh, vep_handle);
2360 if (session->is_vep_session)
2362 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2364 " next_sh = 0x%x (%u)\n"
2365 " prev_sh = 0x%x (%u)\n"
2366 " vep_sh = 0x%x (%u)\n"
2367 " ev.events = 0x%x\n"
2368 " ev.data.u64 = 0x%llx\n"
2371 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2372 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2373 vep->ev.data.u64, vep->et_mask);
2378 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2382 vppcom_epoll_create (void)
2384 vcl_worker_t *wrk = vcl_worker_get_current ();
2385 vcl_session_t *vep_session;
2387 vep_session = vcl_session_alloc (wrk);
2389 vep_session->is_vep = 1;
2390 vep_session->vep.vep_sh = ~0;
2391 vep_session->vep.next_sh = ~0;
2392 vep_session->vep.prev_sh = ~0;
2393 vep_session->vpp_handle = ~0;
2395 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2396 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2398 return vcl_session_handle (vep_session);
2402 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2403 struct epoll_event *event)
2405 vcl_worker_t *wrk = vcl_worker_get_current ();
2406 vcl_session_t *vep_session;
2407 vcl_session_t *session;
2410 if (vep_handle == session_handle)
2412 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2413 return VPPCOM_EINVAL;
2416 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2417 if (PREDICT_FALSE (!vep_session))
2419 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2420 return VPPCOM_EBADFD;
2422 if (PREDICT_FALSE (!vep_session->is_vep))
2424 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2425 return VPPCOM_EINVAL;
2428 ASSERT (vep_session->vep.vep_sh == ~0);
2429 ASSERT (vep_session->vep.prev_sh == ~0);
2431 session = vcl_session_get_w_handle (wrk, session_handle);
2432 if (PREDICT_FALSE (!session))
2434 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2435 return VPPCOM_EBADFD;
2437 if (PREDICT_FALSE (session->is_vep))
2439 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2440 return VPPCOM_EINVAL;
2446 if (PREDICT_FALSE (!event))
2448 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2449 return VPPCOM_EINVAL;
2451 if (vep_session->vep.next_sh != ~0)
2453 vcl_session_t *next_session;
2454 next_session = vcl_session_get_w_handle (wrk,
2455 vep_session->vep.next_sh);
2456 if (PREDICT_FALSE (!next_session))
2458 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2459 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2460 return VPPCOM_EBADFD;
2462 ASSERT (next_session->vep.prev_sh == vep_handle);
2463 next_session->vep.prev_sh = session_handle;
2465 session->vep.next_sh = vep_session->vep.next_sh;
2466 session->vep.prev_sh = vep_handle;
2467 session->vep.vep_sh = vep_handle;
2468 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2469 session->vep.ev = *event;
2470 session->is_vep = 0;
2471 session->is_vep_session = 1;
2472 vep_session->vep.next_sh = session_handle;
2474 if (session->tx_fifo)
2475 svm_fifo_add_want_deq_ntf (session->tx_fifo,
2476 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2478 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2479 vep_handle, session_handle, event->events, event->data.u64);
2480 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2484 if (PREDICT_FALSE (!event))
2486 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2490 else if (PREDICT_FALSE (!session->is_vep_session))
2492 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2496 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2498 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2499 session_handle, session->vep.vep_sh, vep_handle);
2503 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2504 session->vep.ev = *event;
2505 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2506 vep_handle, session_handle, event->events, event->data.u64);
2510 if (PREDICT_FALSE (!session->is_vep_session))
2512 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2516 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2518 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2519 session_handle, session->vep.vep_sh, vep_handle);
2524 if (session->vep.prev_sh == vep_handle)
2525 vep_session->vep.next_sh = session->vep.next_sh;
2528 vcl_session_t *prev_session;
2529 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2530 if (PREDICT_FALSE (!prev_session))
2532 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2533 session->vep.prev_sh, session_handle);
2534 return VPPCOM_EBADFD;
2536 ASSERT (prev_session->vep.next_sh == session_handle);
2537 prev_session->vep.next_sh = session->vep.next_sh;
2539 if (session->vep.next_sh != ~0)
2541 vcl_session_t *next_session;
2542 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2543 if (PREDICT_FALSE (!next_session))
2545 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2546 session->vep.next_sh, session_handle);
2547 return VPPCOM_EBADFD;
2549 ASSERT (next_session->vep.prev_sh == session_handle);
2550 next_session->vep.prev_sh = session->vep.prev_sh;
2553 memset (&session->vep, 0, sizeof (session->vep));
2554 session->vep.next_sh = ~0;
2555 session->vep.prev_sh = ~0;
2556 session->vep.vep_sh = ~0;
2557 session->is_vep_session = 0;
2559 if (session->tx_fifo)
2560 svm_fifo_del_want_deq_ntf (session->tx_fifo, SVM_FIFO_NO_DEQ_NOTIF);
2562 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2564 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2568 VDBG (0, "Invalid operation (%d)!", op);
2572 vep_verify_epoll_chain (wrk, vep_handle);
2579 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2580 struct epoll_event *events, u32 * num_ev)
2582 session_disconnected_msg_t *disconnected_msg;
2583 session_connected_msg_t *connected_msg;
2584 u32 sid = ~0, session_events;
2585 u64 session_evt_data = ~0;
2586 vcl_session_t *session;
2589 switch (e->event_type)
2591 case SESSION_IO_EVT_RX:
2592 sid = e->session_index;
2593 if (!(session = vcl_session_get (wrk, sid)))
2595 vcl_fifo_rx_evt_valid_or_break (session);
2596 session_events = session->vep.ev.events;
2597 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2600 events[*num_ev].events |= EPOLLIN;
2601 session_evt_data = session->vep.ev.data.u64;
2602 session->has_rx_evt = 1;
2604 case SESSION_IO_EVT_TX:
2605 sid = e->session_index;
2606 if (!(session = vcl_session_get (wrk, sid)))
2608 session_events = session->vep.ev.events;
2609 if (!(EPOLLOUT & session_events))
2612 events[*num_ev].events |= EPOLLOUT;
2613 session_evt_data = session->vep.ev.data.u64;
2614 svm_fifo_reset_has_deq_ntf (session->tx_fifo);
2616 case SESSION_CTRL_EVT_ACCEPTED:
2617 session = vcl_session_accepted (wrk,
2618 (session_accepted_msg_t *) e->data);
2622 session_events = session->vep.ev.events;
2623 if (!(EPOLLIN & session_events))
2627 events[*num_ev].events |= EPOLLIN;
2628 session_evt_data = session->vep.ev.data.u64;
2630 case SESSION_CTRL_EVT_CONNECTED:
2631 connected_msg = (session_connected_msg_t *) e->data;
2632 sid = vcl_session_connected_handler (wrk, connected_msg);
2633 /* Generate EPOLLOUT because there's no connected event */
2634 if (!(session = vcl_session_get (wrk, sid)))
2636 session_events = session->vep.ev.events;
2637 if (!(EPOLLOUT & session_events))
2640 events[*num_ev].events |= EPOLLOUT;
2641 session_evt_data = session->vep.ev.data.u64;
2642 if (session->session_state & STATE_FAILED)
2643 events[*num_ev].events |= EPOLLHUP;
2645 case SESSION_CTRL_EVT_DISCONNECTED:
2646 disconnected_msg = (session_disconnected_msg_t *) e->data;
2647 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2650 session_events = session->vep.ev.events;
2651 if (!((EPOLLHUP | EPOLLRDHUP) & session_events))
2654 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2655 session_evt_data = session->vep.ev.data.u64;
2657 case SESSION_CTRL_EVT_RESET:
2658 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2659 if (!(session = vcl_session_get (wrk, sid)))
2661 session_events = session->vep.ev.events;
2662 if (!((EPOLLHUP | EPOLLRDHUP) & session_events))
2665 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2666 session_evt_data = session->vep.ev.data.u64;
2668 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2669 vcl_session_unlisten_reply_handler (wrk, e->data);
2671 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2672 vcl_session_req_worker_update_handler (wrk, e->data);
2674 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2675 vcl_session_worker_update_reply_handler (wrk, e->data);
2678 VDBG (0, "unhandled: %u", e->event_type);
2684 events[*num_ev].data.u64 = session_evt_data;
2685 if (EPOLLONESHOT & session_events)
2687 session = vcl_session_get (wrk, sid);
2688 session->vep.ev.events = 0;
2695 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2696 struct epoll_event *events, u32 maxevents,
2697 double wait_for_time, u32 * num_ev)
2699 svm_msg_q_msg_t *msg;
2703 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2704 goto handle_dequeued;
2706 svm_msg_q_lock (mq);
2707 if (svm_msg_q_is_empty (mq))
2711 svm_msg_q_unlock (mq);
2714 else if (wait_for_time < 0)
2716 svm_msg_q_wait (mq);
2720 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2722 svm_msg_q_unlock (mq);
2727 ASSERT (maxevents > *num_ev);
2728 vcl_mq_dequeue_batch (wrk, mq, maxevents - *num_ev);
2729 svm_msg_q_unlock (mq);
2732 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2734 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2735 e = svm_msg_q_msg_data (mq, msg);
2736 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2737 svm_msg_q_free_msg (mq, msg);
2739 vec_reset_length (wrk->mq_msg_vector);
2740 vcl_handle_pending_wrk_updates (wrk);
2745 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2746 int maxevents, u32 n_evts, double wait_for_time)
2748 double wait = 0, start = 0, now;
2752 wait = wait_for_time;
2753 start = clib_time_now (&wrk->clib_time);
2758 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2765 now = clib_time_now (&wrk->clib_time);
2766 wait -= now - start;
2775 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2776 int maxevents, u32 n_evts, double wait_for_time)
2778 vcl_mq_evt_conn_t *mqc;
2779 int __clib_unused n_read;
2783 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2785 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2786 vec_len (wrk->mq_events), wait_for_time);
2787 for (i = 0; i < n_mq_evts; i++)
2789 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2790 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2791 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
2793 if (!n_evts && n_mq_evts > 0)
2796 return (int) n_evts;
2800 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
2801 int maxevents, double wait_for_time)
2803 vcl_worker_t *wrk = vcl_worker_get_current ();
2804 vcl_session_t *vep_session;
2808 if (PREDICT_FALSE (maxevents <= 0))
2810 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
2811 return VPPCOM_EINVAL;
2814 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2816 return VPPCOM_EBADFD;
2818 if (PREDICT_FALSE (!vep_session->is_vep))
2820 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
2821 return VPPCOM_EINVAL;
2824 memset (events, 0, sizeof (*events) * maxevents);
2826 if (vec_len (wrk->unhandled_evts_vector))
2828 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2830 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
2832 if (n_evts == maxevents)
2834 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
2838 vec_reset_length (wrk->unhandled_evts_vector);
2841 if (vcm->cfg.use_mq_eventfd)
2842 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
2845 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
2850 vppcom_session_attr (uint32_t session_handle, uint32_t op,
2851 void *buffer, uint32_t * buflen)
2853 vcl_worker_t *wrk = vcl_worker_get_current ();
2854 vcl_session_t *session;
2856 u32 *flags = buffer, tmp_flags = 0;
2857 vppcom_endpt_t *ep = buffer;
2859 session = vcl_session_get_w_handle (wrk, session_handle);
2861 return VPPCOM_EBADFD;
2865 case VPPCOM_ATTR_GET_NREAD:
2866 rv = vcl_session_read_ready (session);
2867 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
2871 case VPPCOM_ATTR_GET_NWRITE:
2872 rv = vcl_session_write_ready (session);
2873 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
2877 case VPPCOM_ATTR_GET_FLAGS:
2878 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
2880 *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr,
2881 VCL_SESS_ATTR_NONBLOCK));
2882 *buflen = sizeof (*flags);
2883 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
2884 "is_nonblocking = %u", session_handle, *flags,
2885 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2891 case VPPCOM_ATTR_SET_FLAGS:
2892 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
2894 if (*flags & O_NONBLOCK)
2895 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
2897 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
2899 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
2900 " is_nonblocking = %u", session_handle, *flags,
2901 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2907 case VPPCOM_ATTR_GET_PEER_ADDR:
2908 if (PREDICT_TRUE (buffer && buflen &&
2909 (*buflen >= sizeof (*ep)) && ep->ip))
2911 ep->is_ip4 = session->transport.is_ip4;
2912 ep->port = session->transport.rmt_port;
2913 if (session->transport.is_ip4)
2914 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
2915 sizeof (ip4_address_t));
2917 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
2918 sizeof (ip6_address_t));
2919 *buflen = sizeof (*ep);
2920 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
2921 "addr = %U, port %u", session_handle, ep->is_ip4,
2922 format_ip46_address, &session->transport.rmt_ip,
2923 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2924 clib_net_to_host_u16 (ep->port));
2930 case VPPCOM_ATTR_GET_LCL_ADDR:
2931 if (PREDICT_TRUE (buffer && buflen &&
2932 (*buflen >= sizeof (*ep)) && ep->ip))
2934 ep->is_ip4 = session->transport.is_ip4;
2935 ep->port = session->transport.lcl_port;
2936 if (session->transport.is_ip4)
2937 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
2938 sizeof (ip4_address_t));
2940 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
2941 sizeof (ip6_address_t));
2942 *buflen = sizeof (*ep);
2943 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
2944 " port %d", session_handle, ep->is_ip4, format_ip46_address,
2945 &session->transport.lcl_ip,
2946 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2947 clib_net_to_host_u16 (ep->port));
2953 case VPPCOM_ATTR_SET_LCL_ADDR:
2954 if (PREDICT_TRUE (buffer && buflen &&
2955 (*buflen >= sizeof (*ep)) && ep->ip))
2957 session->transport.is_ip4 = ep->is_ip4;
2958 session->transport.lcl_port = ep->port;
2959 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
2960 *buflen = sizeof (*ep);
2961 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
2962 " port %d", session_handle, ep->is_ip4, format_ip46_address,
2963 &session->transport.lcl_ip,
2964 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2965 clib_net_to_host_u16 (ep->port));
2971 case VPPCOM_ATTR_GET_LIBC_EPFD:
2972 rv = session->libc_epfd;
2973 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
2976 case VPPCOM_ATTR_SET_LIBC_EPFD:
2977 if (PREDICT_TRUE (buffer && buflen &&
2978 (*buflen == sizeof (session->libc_epfd))))
2980 session->libc_epfd = *(int *) buffer;
2981 *buflen = sizeof (session->libc_epfd);
2983 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
2984 session->libc_epfd, *buflen);
2990 case VPPCOM_ATTR_GET_PROTOCOL:
2991 if (buffer && buflen && (*buflen >= sizeof (int)))
2993 *(int *) buffer = session->session_type;
2994 *buflen = sizeof (int);
2996 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
2997 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3003 case VPPCOM_ATTR_GET_LISTEN:
3004 if (buffer && buflen && (*buflen >= sizeof (int)))
3006 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3007 VCL_SESS_ATTR_LISTEN);
3008 *buflen = sizeof (int);
3010 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3017 case VPPCOM_ATTR_GET_ERROR:
3018 if (buffer && buflen && (*buflen >= sizeof (int)))
3020 *(int *) buffer = 0;
3021 *buflen = sizeof (int);
3023 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3024 *(int *) buffer, *buflen);
3030 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3031 if (buffer && buflen && (*buflen >= sizeof (u32)))
3035 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3036 session->tx_fifo ? session->tx_fifo->nitems :
3037 vcm->cfg.tx_fifo_size);
3038 *buflen = sizeof (u32);
3040 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3041 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3048 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3049 if (buffer && buflen && (*buflen == sizeof (u32)))
3052 session->sndbuf_size = *(u32 *) buffer;
3053 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3054 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3061 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3062 if (buffer && buflen && (*buflen >= sizeof (u32)))
3066 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3067 session->rx_fifo ? session->rx_fifo->nitems :
3068 vcm->cfg.rx_fifo_size);
3069 *buflen = sizeof (u32);
3071 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3072 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3078 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3079 if (buffer && buflen && (*buflen == sizeof (u32)))
3082 session->rcvbuf_size = *(u32 *) buffer;
3083 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3084 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3091 case VPPCOM_ATTR_GET_REUSEADDR:
3092 if (buffer && buflen && (*buflen >= sizeof (int)))
3095 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3096 VCL_SESS_ATTR_REUSEADDR);
3097 *buflen = sizeof (int);
3099 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3100 *(int *) buffer, *buflen);
3106 case VPPCOM_ATTR_SET_REUSEADDR:
3107 if (buffer && buflen && (*buflen == sizeof (int)) &&
3108 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3111 if (*(int *) buffer)
3112 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
3114 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
3116 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3117 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEADDR),
3124 case VPPCOM_ATTR_GET_REUSEPORT:
3125 if (buffer && buflen && (*buflen >= sizeof (int)))
3128 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3129 VCL_SESS_ATTR_REUSEPORT);
3130 *buflen = sizeof (int);
3132 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3133 *(int *) buffer, *buflen);
3139 case VPPCOM_ATTR_SET_REUSEPORT:
3140 if (buffer && buflen && (*buflen == sizeof (int)) &&
3141 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3144 if (*(int *) buffer)
3145 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
3147 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
3149 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3150 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEPORT),
3157 case VPPCOM_ATTR_GET_BROADCAST:
3158 if (buffer && buflen && (*buflen >= sizeof (int)))
3161 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3162 VCL_SESS_ATTR_BROADCAST);
3163 *buflen = sizeof (int);
3165 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3166 *(int *) buffer, *buflen);
3172 case VPPCOM_ATTR_SET_BROADCAST:
3173 if (buffer && buflen && (*buflen == sizeof (int)))
3176 if (*(int *) buffer)
3177 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
3179 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
3181 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3182 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_BROADCAST),
3189 case VPPCOM_ATTR_GET_V6ONLY:
3190 if (buffer && buflen && (*buflen >= sizeof (int)))
3193 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3194 VCL_SESS_ATTR_V6ONLY);
3195 *buflen = sizeof (int);
3197 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3198 *(int *) buffer, *buflen);
3204 case VPPCOM_ATTR_SET_V6ONLY:
3205 if (buffer && buflen && (*buflen == sizeof (int)))
3208 if (*(int *) buffer)
3209 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
3211 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
3213 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3214 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_V6ONLY),
3221 case VPPCOM_ATTR_GET_KEEPALIVE:
3222 if (buffer && buflen && (*buflen >= sizeof (int)))
3225 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3226 VCL_SESS_ATTR_KEEPALIVE);
3227 *buflen = sizeof (int);
3229 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3230 *(int *) buffer, *buflen);
3236 case VPPCOM_ATTR_SET_KEEPALIVE:
3237 if (buffer && buflen && (*buflen == sizeof (int)))
3240 if (*(int *) buffer)
3241 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3243 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3245 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3246 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_KEEPALIVE),
3253 case VPPCOM_ATTR_GET_TCP_NODELAY:
3254 if (buffer && buflen && (*buflen >= sizeof (int)))
3257 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3258 VCL_SESS_ATTR_TCP_NODELAY);
3259 *buflen = sizeof (int);
3261 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3262 *(int *) buffer, *buflen);
3268 case VPPCOM_ATTR_SET_TCP_NODELAY:
3269 if (buffer && buflen && (*buflen == sizeof (int)))
3272 if (*(int *) buffer)
3273 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3275 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3277 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3278 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_NODELAY),
3285 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3286 if (buffer && buflen && (*buflen >= sizeof (int)))
3289 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3290 VCL_SESS_ATTR_TCP_KEEPIDLE);
3291 *buflen = sizeof (int);
3293 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3294 *(int *) buffer, *buflen);
3300 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3301 if (buffer && buflen && (*buflen == sizeof (int)))
3304 if (*(int *) buffer)
3305 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3307 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3309 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3310 VCL_SESS_ATTR_TEST (session->attr,
3311 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3317 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3318 if (buffer && buflen && (*buflen >= sizeof (int)))
3321 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3322 VCL_SESS_ATTR_TCP_KEEPINTVL);
3323 *buflen = sizeof (int);
3325 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3326 *(int *) buffer, *buflen);
3332 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3333 if (buffer && buflen && (*buflen == sizeof (int)))
3336 if (*(int *) buffer)
3337 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3339 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3341 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3342 VCL_SESS_ATTR_TEST (session->attr,
3343 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3349 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3350 if (buffer && buflen && (*buflen >= sizeof (u32)))
3353 *(u32 *) buffer = session->user_mss;
3354 *buflen = sizeof (int);
3356 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3357 *(int *) buffer, *buflen);
3363 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3364 if (buffer && buflen && (*buflen == sizeof (u32)))
3367 session->user_mss = *(u32 *) buffer;
3369 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3370 session->user_mss, *buflen);
3376 case VPPCOM_ATTR_SET_SHUT:
3377 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3378 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3379 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3380 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3383 case VPPCOM_ATTR_GET_SHUT:
3384 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3386 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3389 *(int *) buffer = SHUT_RD;
3390 else if (tmp_flags == 2)
3391 *(int *) buffer = SHUT_WR;
3392 else if (tmp_flags == 3)
3393 *(int *) buffer = SHUT_RDWR;
3394 *buflen = sizeof (int);
3405 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3406 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3408 vcl_worker_t *wrk = vcl_worker_get_current ();
3410 vcl_session_t *session = 0;
3414 session = vcl_session_get_w_handle (wrk, session_handle);
3415 if (PREDICT_FALSE (!session))
3417 VDBG (0, "sh 0x%llx is closed!", session_handle);
3418 return VPPCOM_EBADFD;
3420 ep->is_ip4 = session->transport.is_ip4;
3421 ep->port = session->transport.rmt_port;
3425 rv = vppcom_session_read (session_handle, buffer, buflen);
3426 else if (flags & MSG_PEEK)
3427 rv = vppcom_session_peek (session_handle, buffer, buflen);
3430 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3431 return VPPCOM_EAFNOSUPPORT;
3436 if (session->transport.is_ip4)
3437 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3438 sizeof (ip4_address_t));
3440 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3441 sizeof (ip6_address_t));
3448 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3449 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3452 return VPPCOM_EINVAL;
3457 return VPPCOM_EINVAL;
3462 // TBD check the flags and do the right thing
3463 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3466 return (vppcom_session_write_inline (session_handle, buffer, buflen, 1));
3470 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3472 vcl_worker_t *wrk = vcl_worker_get_current ();
3473 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3474 u32 i, keep_trying = 1;
3475 svm_msg_q_msg_t msg;
3479 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3482 return VPPCOM_EFAULT;
3486 vcl_session_t *session;
3488 /* Dequeue all events and drop all unhandled io events */
3489 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3491 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3492 vcl_handle_mq_event (wrk, e);
3493 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3495 vec_reset_length (wrk->unhandled_evts_vector);
3497 for (i = 0; i < n_sids; i++)
3499 session = vcl_session_get (wrk, vp[i].sh);
3502 vp[i].revents = POLLHUP;
3509 if (POLLIN & vp[i].events)
3511 rv = vcl_session_read_ready (session);
3514 vp[i].revents |= POLLIN;
3521 case VPPCOM_ECONNRESET:
3522 vp[i].revents = POLLHUP;
3526 vp[i].revents = POLLERR;
3533 if (POLLOUT & vp[i].events)
3535 rv = vcl_session_write_ready (session);
3538 vp[i].revents |= POLLOUT;
3545 case VPPCOM_ECONNRESET:
3546 vp[i].revents = POLLHUP;
3550 vp[i].revents = POLLERR;
3557 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3559 vp[i].revents = POLLNVAL;
3563 if (wait_for_time != -1)
3564 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3566 while ((num_ev == 0) && keep_trying);
3572 vppcom_mq_epoll_fd (void)
3574 vcl_worker_t *wrk = vcl_worker_get_current ();
3575 return wrk->mqs_epfd;
3579 vppcom_session_index (vcl_session_handle_t session_handle)
3581 return session_handle & 0xFFFFFF;
3585 vppcom_session_worker (vcl_session_handle_t session_handle)
3587 return session_handle >> 24;
3591 vppcom_worker_register (void)
3593 if (!vcl_worker_alloc_and_init ())
3594 return VPPCOM_EEXIST;
3596 if (vcl_worker_set_bapi ())
3597 return VPPCOM_EEXIST;
3599 if (vcl_worker_register_with_vpp ())
3600 return VPPCOM_EEXIST;
3606 vppcom_worker_unregister (void)
3608 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3609 vcl_set_worker_index (~0);
3613 vppcom_worker_index (void)
3615 return vcl_get_worker_index ();
3619 vppcom_worker_mqs_epfd (void)
3621 vcl_worker_t *wrk = vcl_worker_get_current ();
3622 if (!vcm->cfg.use_mq_eventfd)
3624 return wrk->mqs_epfd;
3628 vppcom_session_is_connectable_listener (uint32_t session_handle)
3630 vcl_session_t *session;
3631 vcl_worker_t *wrk = vcl_worker_get_current ();
3632 session = vcl_session_get_w_handle (wrk, session_handle);
3634 return VPPCOM_EBADFD;
3635 return vcl_session_is_connectable_listener (wrk, session);
3639 vppcom_session_listener (uint32_t session_handle)
3641 vcl_worker_t *wrk = vcl_worker_get_current ();
3642 vcl_session_t *listen_session, *session;
3643 session = vcl_session_get_w_handle (wrk, session_handle);
3645 return VPPCOM_EBADFD;
3646 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3647 return VPPCOM_EBADFD;
3648 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3649 if (!listen_session)
3650 return VPPCOM_EBADFD;
3651 return vcl_session_handle (listen_session);
3655 vppcom_session_n_accepted (uint32_t session_handle)
3657 vcl_worker_t *wrk = vcl_worker_get_current ();
3658 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3660 return VPPCOM_EBADFD;
3661 return session->n_accepted_sessions;
3665 * fd.io coding-style-patch-verification: ON
3668 * eval: (c-set-style "gnu")