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);
1467 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1468 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 svm_fifo_unset_event (s->rx_fifo);
1737 return VPPCOM_EWOULDBLOCK;
1739 while (svm_fifo_is_empty_cons (rx_fifo))
1741 if (vcl_session_is_closing (s))
1742 return vcl_session_closing_error (s);
1744 svm_fifo_unset_event (s->rx_fifo);
1745 svm_msg_q_lock (mq);
1746 if (svm_msg_q_is_empty (mq))
1747 svm_msg_q_wait (mq);
1749 svm_msg_q_sub_w_lock (mq, &msg);
1750 e = svm_msg_q_msg_data (mq, &msg);
1751 svm_msg_q_unlock (mq);
1752 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1753 vcl_handle_mq_event (wrk, e);
1754 svm_msg_q_free_msg (mq, &msg);
1759 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1761 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1763 if (svm_fifo_is_empty_cons (rx_fifo))
1764 svm_fifo_unset_event (s->rx_fifo);
1766 /* Cut-through sessions might request tx notifications on rx fifos */
1767 if (PREDICT_FALSE (rx_fifo->want_deq_ntf))
1769 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1770 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1771 svm_fifo_reset_has_deq_ntf (s->rx_fifo);
1774 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1775 s->vpp_handle, n_read, rx_fifo);
1781 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1783 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1787 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1789 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1793 vppcom_session_read_segments (uint32_t session_handle,
1794 vppcom_data_segments_t ds)
1796 vcl_worker_t *wrk = vcl_worker_get_current ();
1797 int n_read = 0, is_nonblocking;
1798 vcl_session_t *s = 0;
1799 svm_fifo_t *rx_fifo;
1800 svm_msg_q_msg_t msg;
1805 s = vcl_session_get_w_handle (wrk, session_handle);
1806 if (PREDICT_FALSE (!s || s->is_vep))
1807 return VPPCOM_EBADFD;
1809 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1810 return vcl_session_closed_error (s);
1812 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1813 is_ct = vcl_session_is_ct (s);
1814 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1815 rx_fifo = s->rx_fifo;
1819 svm_fifo_unset_event (s->rx_fifo);
1821 if (svm_fifo_is_empty_cons (rx_fifo))
1825 svm_fifo_unset_event (rx_fifo);
1826 return VPPCOM_EWOULDBLOCK;
1828 while (svm_fifo_is_empty_cons (rx_fifo))
1830 if (vcl_session_is_closing (s))
1831 return vcl_session_closing_error (s);
1833 svm_fifo_unset_event (rx_fifo);
1834 svm_msg_q_lock (mq);
1835 if (svm_msg_q_is_empty (mq))
1836 svm_msg_q_wait (mq);
1838 svm_msg_q_sub_w_lock (mq, &msg);
1839 e = svm_msg_q_msg_data (mq, &msg);
1840 svm_msg_q_unlock (mq);
1841 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1842 vcl_handle_mq_event (wrk, e);
1843 svm_msg_q_free_msg (mq, &msg);
1847 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_seg_t *) ds);
1848 svm_fifo_unset_event (rx_fifo);
1854 vppcom_session_free_segments (uint32_t session_handle,
1855 vppcom_data_segments_t ds)
1857 vcl_worker_t *wrk = vcl_worker_get_current ();
1860 s = vcl_session_get_w_handle (wrk, session_handle);
1861 if (PREDICT_FALSE (!s || s->is_vep))
1864 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_seg_t *) ds);
1868 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
1870 u32 first_copy = clib_min (ds[0].len, max_bytes);
1871 clib_memcpy_fast (buf, ds[0].data, first_copy);
1872 if (first_copy < max_bytes)
1874 clib_memcpy_fast (buf + first_copy, ds[1].data,
1875 clib_min (ds[1].len, max_bytes - first_copy));
1881 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1883 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
1887 vppcom_session_write_inline (uint32_t session_handle, void *buf, size_t n,
1890 vcl_worker_t *wrk = vcl_worker_get_current ();
1891 int n_write, is_nonblocking;
1892 vcl_session_t *s = 0;
1893 session_evt_type_t et;
1894 svm_msg_q_msg_t msg;
1895 svm_fifo_t *tx_fifo;
1900 if (PREDICT_FALSE (!buf))
1901 return VPPCOM_EINVAL;
1903 s = vcl_session_get_w_handle (wrk, session_handle);
1904 if (PREDICT_FALSE (!s))
1905 return VPPCOM_EBADFD;
1907 if (PREDICT_FALSE (s->is_vep))
1909 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
1910 " session!", s->session_index, s->vpp_handle);
1911 return VPPCOM_EBADFD;
1914 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1916 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
1917 s->session_index, s->vpp_handle, s->session_state,
1918 vppcom_session_state_str (s->session_state));
1919 return vcl_session_closed_error (s);;
1922 is_ct = vcl_session_is_ct (s);
1923 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
1924 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1926 mq = wrk->app_event_queue;
1927 if (svm_fifo_is_full_prod (tx_fifo))
1931 return VPPCOM_EWOULDBLOCK;
1933 while (svm_fifo_is_full_prod (tx_fifo))
1935 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
1936 if (vcl_session_is_closing (s))
1937 return vcl_session_closing_error (s);
1938 svm_msg_q_lock (mq);
1939 if (svm_msg_q_is_empty (mq))
1940 svm_msg_q_wait (mq);
1942 svm_msg_q_sub_w_lock (mq, &msg);
1943 e = svm_msg_q_msg_data (mq, &msg);
1944 svm_msg_q_unlock (mq);
1946 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
1947 vcl_handle_mq_event (wrk, e);
1948 svm_msg_q_free_msg (mq, &msg);
1952 et = SESSION_IO_EVT_TX;
1953 if (is_flush && !is_ct)
1954 et = SESSION_IO_EVT_TX_FLUSH;
1957 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
1958 s->vpp_evt_q, buf, n, et,
1959 0 /* do_evt */ , SVM_Q_WAIT);
1961 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
1962 0 /* do_evt */ , SVM_Q_WAIT);
1964 if (svm_fifo_set_event (s->tx_fifo))
1965 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
1968 ASSERT (n_write > 0);
1970 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
1971 s->vpp_handle, n_write);
1977 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
1979 return vppcom_session_write_inline (session_handle, buf, n,
1984 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
1986 return vppcom_session_write_inline (session_handle, buf, n,
1990 #define vcl_fifo_rx_evt_valid_or_break(_s) \
1991 if (PREDICT_FALSE (!_s->rx_fifo)) \
1993 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
1995 if (!vcl_session_is_ct (_s)) \
1997 svm_fifo_unset_event (_s->rx_fifo); \
1998 if (svm_fifo_is_empty (_s->rx_fifo)) \
2001 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2003 svm_fifo_unset_event (_s->ct_rx_fifo); \
2004 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2010 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2011 unsigned long n_bits, unsigned long *read_map,
2012 unsigned long *write_map,
2013 unsigned long *except_map, u32 * bits_set)
2015 session_disconnected_msg_t *disconnected_msg;
2016 session_connected_msg_t *connected_msg;
2017 vcl_session_t *session;
2020 switch (e->event_type)
2022 case SESSION_IO_EVT_RX:
2023 sid = e->session_index;
2024 session = vcl_session_get (wrk, sid);
2027 vcl_fifo_rx_evt_valid_or_break (session);
2028 if (sid < n_bits && read_map)
2030 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2034 case SESSION_IO_EVT_TX:
2035 sid = e->session_index;
2036 session = vcl_session_get (wrk, sid);
2039 if (sid < n_bits && write_map)
2041 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2045 case SESSION_CTRL_EVT_ACCEPTED:
2046 session = vcl_session_accepted (wrk,
2047 (session_accepted_msg_t *) e->data);
2050 sid = session->session_index;
2051 if (sid < n_bits && read_map)
2053 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2057 case SESSION_CTRL_EVT_CONNECTED:
2058 connected_msg = (session_connected_msg_t *) e->data;
2059 sid = vcl_session_connected_handler (wrk, connected_msg);
2060 if (sid == VCL_INVALID_SESSION_INDEX)
2062 if (sid < n_bits && write_map)
2064 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2068 case SESSION_CTRL_EVT_DISCONNECTED:
2069 disconnected_msg = (session_disconnected_msg_t *) e->data;
2070 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2073 sid = session->session_index;
2074 if (sid < n_bits && except_map)
2076 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2080 case SESSION_CTRL_EVT_RESET:
2081 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2082 if (sid < n_bits && except_map)
2084 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2088 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2089 vcl_session_unlisten_reply_handler (wrk, e->data);
2091 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2092 vcl_session_worker_update_reply_handler (wrk, e->data);
2094 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2095 vcl_session_req_worker_update_handler (wrk, e->data);
2098 clib_warning ("unhandled: %u", e->event_type);
2104 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2105 unsigned long n_bits, unsigned long *read_map,
2106 unsigned long *write_map, unsigned long *except_map,
2107 double time_to_wait, u32 * bits_set)
2109 svm_msg_q_msg_t *msg;
2113 svm_msg_q_lock (mq);
2114 if (svm_msg_q_is_empty (mq))
2118 svm_msg_q_unlock (mq);
2124 svm_msg_q_unlock (mq);
2127 else if (time_to_wait < 0)
2129 svm_msg_q_wait (mq);
2133 if (svm_msg_q_timedwait (mq, time_to_wait))
2135 svm_msg_q_unlock (mq);
2140 vcl_mq_dequeue_batch (wrk, mq, ~0);
2141 svm_msg_q_unlock (mq);
2143 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2145 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2146 e = svm_msg_q_msg_data (mq, msg);
2147 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2148 except_map, bits_set);
2149 svm_msg_q_free_msg (mq, msg);
2151 vec_reset_length (wrk->mq_msg_vector);
2152 vcl_handle_pending_wrk_updates (wrk);
2157 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2158 vcl_si_set * read_map, vcl_si_set * write_map,
2159 vcl_si_set * except_map, double time_to_wait,
2162 double wait = 0, start = 0;
2166 wait = time_to_wait;
2167 start = clib_time_now (&wrk->clib_time);
2172 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2173 write_map, except_map, wait, bits_set);
2179 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2187 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2188 vcl_si_set * read_map, vcl_si_set * write_map,
2189 vcl_si_set * except_map, double time_to_wait,
2192 vcl_mq_evt_conn_t *mqc;
2193 int __clib_unused n_read;
2197 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2198 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2199 vec_len (wrk->mq_events), time_to_wait);
2200 for (i = 0; i < n_mq_evts; i++)
2202 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2203 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2204 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2205 except_map, 0, bits_set);
2208 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2212 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2213 vcl_si_set * except_map, double time_to_wait)
2215 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2216 vcl_worker_t *wrk = vcl_worker_get_current ();
2217 vcl_session_t *session = 0;
2220 if (n_bits && read_map)
2222 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2223 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2224 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2225 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2227 if (n_bits && write_map)
2229 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2230 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2231 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2232 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2234 if (n_bits && except_map)
2236 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2237 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2238 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2239 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2249 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2250 if (!(session = vcl_session_get (wrk, sid)))
2252 if (except_map && sid < minbits)
2253 clib_bitmap_set_no_check (except_map, sid, 1);
2257 rv = svm_fifo_is_full_prod (session->tx_fifo);
2260 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2264 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2271 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2272 if (!(session = vcl_session_get (wrk, sid)))
2274 if (except_map && sid < minbits)
2275 clib_bitmap_set_no_check (except_map, sid, 1);
2279 rv = vcl_session_read_ready (session);
2282 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2290 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2292 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2293 read_map, write_map, except_map, &bits_set);
2295 vec_reset_length (wrk->unhandled_evts_vector);
2297 if (vcm->cfg.use_mq_eventfd)
2298 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2299 time_to_wait, &bits_set);
2301 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2302 time_to_wait, &bits_set);
2308 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2310 vcl_session_t *session;
2311 vppcom_epoll_t *vep;
2312 u32 sh = vep_handle;
2314 if (VPPCOM_DEBUG <= 2)
2317 session = vcl_session_get_w_handle (wrk, vep_handle);
2318 if (PREDICT_FALSE (!session))
2320 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2323 if (PREDICT_FALSE (!session->is_vep))
2325 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2328 vep = &session->vep;
2329 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2332 " is_vep_session = %u\n"
2333 " next_sh = 0x%x (%u)\n"
2334 "}\n", vep_handle, session->is_vep, session->is_vep_session,
2335 vep->next_sh, vep->next_sh);
2337 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2339 session = vcl_session_get_w_handle (wrk, sh);
2340 if (PREDICT_FALSE (!session))
2342 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2345 if (PREDICT_FALSE (session->is_vep))
2347 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2349 else if (PREDICT_FALSE (!session->is_vep_session))
2351 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2354 vep = &session->vep;
2355 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2356 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2357 sh, session->vep.vep_sh, vep_handle);
2358 if (session->is_vep_session)
2360 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2362 " next_sh = 0x%x (%u)\n"
2363 " prev_sh = 0x%x (%u)\n"
2364 " vep_sh = 0x%x (%u)\n"
2365 " ev.events = 0x%x\n"
2366 " ev.data.u64 = 0x%llx\n"
2369 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2370 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2371 vep->ev.data.u64, vep->et_mask);
2376 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2380 vppcom_epoll_create (void)
2382 vcl_worker_t *wrk = vcl_worker_get_current ();
2383 vcl_session_t *vep_session;
2385 vep_session = vcl_session_alloc (wrk);
2387 vep_session->is_vep = 1;
2388 vep_session->vep.vep_sh = ~0;
2389 vep_session->vep.next_sh = ~0;
2390 vep_session->vep.prev_sh = ~0;
2391 vep_session->vpp_handle = ~0;
2393 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2394 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2396 return vcl_session_handle (vep_session);
2400 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2401 struct epoll_event *event)
2403 vcl_worker_t *wrk = vcl_worker_get_current ();
2404 vcl_session_t *vep_session;
2405 vcl_session_t *session;
2408 if (vep_handle == session_handle)
2410 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2411 return VPPCOM_EINVAL;
2414 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2415 if (PREDICT_FALSE (!vep_session))
2417 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2418 return VPPCOM_EBADFD;
2420 if (PREDICT_FALSE (!vep_session->is_vep))
2422 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2423 return VPPCOM_EINVAL;
2426 ASSERT (vep_session->vep.vep_sh == ~0);
2427 ASSERT (vep_session->vep.prev_sh == ~0);
2429 session = vcl_session_get_w_handle (wrk, session_handle);
2430 if (PREDICT_FALSE (!session))
2432 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2433 return VPPCOM_EBADFD;
2435 if (PREDICT_FALSE (session->is_vep))
2437 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2438 return VPPCOM_EINVAL;
2444 if (PREDICT_FALSE (!event))
2446 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2447 return VPPCOM_EINVAL;
2449 if (vep_session->vep.next_sh != ~0)
2451 vcl_session_t *next_session;
2452 next_session = vcl_session_get_w_handle (wrk,
2453 vep_session->vep.next_sh);
2454 if (PREDICT_FALSE (!next_session))
2456 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2457 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2458 return VPPCOM_EBADFD;
2460 ASSERT (next_session->vep.prev_sh == vep_handle);
2461 next_session->vep.prev_sh = session_handle;
2463 session->vep.next_sh = vep_session->vep.next_sh;
2464 session->vep.prev_sh = vep_handle;
2465 session->vep.vep_sh = vep_handle;
2466 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2467 session->vep.ev = *event;
2468 session->is_vep = 0;
2469 session->is_vep_session = 1;
2470 vep_session->vep.next_sh = session_handle;
2472 if (session->tx_fifo)
2473 svm_fifo_add_want_deq_ntf (session->tx_fifo,
2474 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2476 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2477 vep_handle, session_handle, event->events, event->data.u64);
2478 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2482 if (PREDICT_FALSE (!event))
2484 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2488 else if (PREDICT_FALSE (!session->is_vep_session))
2490 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2494 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2496 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2497 session_handle, session->vep.vep_sh, vep_handle);
2501 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2502 session->vep.ev = *event;
2503 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2504 vep_handle, session_handle, event->events, event->data.u64);
2508 if (PREDICT_FALSE (!session->is_vep_session))
2510 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2514 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2516 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2517 session_handle, session->vep.vep_sh, vep_handle);
2522 if (session->vep.prev_sh == vep_handle)
2523 vep_session->vep.next_sh = session->vep.next_sh;
2526 vcl_session_t *prev_session;
2527 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2528 if (PREDICT_FALSE (!prev_session))
2530 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2531 session->vep.prev_sh, session_handle);
2532 return VPPCOM_EBADFD;
2534 ASSERT (prev_session->vep.next_sh == session_handle);
2535 prev_session->vep.next_sh = session->vep.next_sh;
2537 if (session->vep.next_sh != ~0)
2539 vcl_session_t *next_session;
2540 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2541 if (PREDICT_FALSE (!next_session))
2543 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2544 session->vep.next_sh, session_handle);
2545 return VPPCOM_EBADFD;
2547 ASSERT (next_session->vep.prev_sh == session_handle);
2548 next_session->vep.prev_sh = session->vep.prev_sh;
2551 memset (&session->vep, 0, sizeof (session->vep));
2552 session->vep.next_sh = ~0;
2553 session->vep.prev_sh = ~0;
2554 session->vep.vep_sh = ~0;
2555 session->is_vep_session = 0;
2557 if (session->tx_fifo)
2558 svm_fifo_del_want_deq_ntf (session->tx_fifo, SVM_FIFO_NO_DEQ_NOTIF);
2560 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2562 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2566 VDBG (0, "Invalid operation (%d)!", op);
2570 vep_verify_epoll_chain (wrk, vep_handle);
2577 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2578 struct epoll_event *events, u32 * num_ev)
2580 session_disconnected_msg_t *disconnected_msg;
2581 session_connected_msg_t *connected_msg;
2582 u32 sid = ~0, session_events;
2583 u64 session_evt_data = ~0;
2584 vcl_session_t *session;
2587 switch (e->event_type)
2589 case SESSION_IO_EVT_RX:
2590 sid = e->session_index;
2591 if (!(session = vcl_session_get (wrk, sid)))
2593 vcl_fifo_rx_evt_valid_or_break (session);
2594 session_events = session->vep.ev.events;
2595 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2598 events[*num_ev].events |= EPOLLIN;
2599 session_evt_data = session->vep.ev.data.u64;
2600 session->has_rx_evt = 1;
2602 case SESSION_IO_EVT_TX:
2603 sid = e->session_index;
2604 if (!(session = vcl_session_get (wrk, sid)))
2606 session_events = session->vep.ev.events;
2607 if (!(EPOLLOUT & session_events))
2610 events[*num_ev].events |= EPOLLOUT;
2611 session_evt_data = session->vep.ev.data.u64;
2612 svm_fifo_reset_has_deq_ntf (session->tx_fifo);
2614 case SESSION_CTRL_EVT_ACCEPTED:
2615 session = vcl_session_accepted (wrk,
2616 (session_accepted_msg_t *) e->data);
2620 session_events = session->vep.ev.events;
2621 if (!(EPOLLIN & session_events))
2625 events[*num_ev].events |= EPOLLIN;
2626 session_evt_data = session->vep.ev.data.u64;
2628 case SESSION_CTRL_EVT_CONNECTED:
2629 connected_msg = (session_connected_msg_t *) e->data;
2630 sid = vcl_session_connected_handler (wrk, connected_msg);
2631 /* Generate EPOLLOUT because there's no connected event */
2632 if (!(session = vcl_session_get (wrk, sid)))
2634 session_events = session->vep.ev.events;
2635 if (!(EPOLLOUT & session_events))
2638 events[*num_ev].events |= EPOLLOUT;
2639 session_evt_data = session->vep.ev.data.u64;
2640 if (session->session_state & STATE_FAILED)
2641 events[*num_ev].events |= EPOLLHUP;
2643 case SESSION_CTRL_EVT_DISCONNECTED:
2644 disconnected_msg = (session_disconnected_msg_t *) e->data;
2645 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2648 session_events = session->vep.ev.events;
2649 if (!((EPOLLHUP | EPOLLRDHUP) & session_events))
2652 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2653 session_evt_data = session->vep.ev.data.u64;
2655 case SESSION_CTRL_EVT_RESET:
2656 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2657 if (!(session = vcl_session_get (wrk, sid)))
2659 session_events = session->vep.ev.events;
2660 if (!((EPOLLHUP | EPOLLRDHUP) & session_events))
2663 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2664 session_evt_data = session->vep.ev.data.u64;
2666 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2667 vcl_session_unlisten_reply_handler (wrk, e->data);
2669 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2670 vcl_session_req_worker_update_handler (wrk, e->data);
2672 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2673 vcl_session_worker_update_reply_handler (wrk, e->data);
2676 VDBG (0, "unhandled: %u", e->event_type);
2682 events[*num_ev].data.u64 = session_evt_data;
2683 if (EPOLLONESHOT & session_events)
2685 session = vcl_session_get (wrk, sid);
2686 session->vep.ev.events = 0;
2693 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2694 struct epoll_event *events, u32 maxevents,
2695 double wait_for_time, u32 * num_ev)
2697 svm_msg_q_msg_t *msg;
2701 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2702 goto handle_dequeued;
2704 svm_msg_q_lock (mq);
2705 if (svm_msg_q_is_empty (mq))
2709 svm_msg_q_unlock (mq);
2712 else if (wait_for_time < 0)
2714 svm_msg_q_wait (mq);
2718 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2720 svm_msg_q_unlock (mq);
2725 ASSERT (maxevents > *num_ev);
2726 vcl_mq_dequeue_batch (wrk, mq, maxevents - *num_ev);
2727 svm_msg_q_unlock (mq);
2730 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2732 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2733 e = svm_msg_q_msg_data (mq, msg);
2734 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2735 svm_msg_q_free_msg (mq, msg);
2737 vec_reset_length (wrk->mq_msg_vector);
2738 vcl_handle_pending_wrk_updates (wrk);
2743 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2744 int maxevents, u32 n_evts, double wait_for_time)
2746 double wait = 0, start = 0, now;
2750 wait = wait_for_time;
2751 start = clib_time_now (&wrk->clib_time);
2756 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2763 now = clib_time_now (&wrk->clib_time);
2764 wait -= now - start;
2773 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2774 int maxevents, u32 n_evts, double wait_for_time)
2776 vcl_mq_evt_conn_t *mqc;
2777 int __clib_unused n_read;
2781 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2783 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2784 vec_len (wrk->mq_events), wait_for_time);
2785 for (i = 0; i < n_mq_evts; i++)
2787 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2788 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2789 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
2791 if (!n_evts && n_mq_evts > 0)
2794 return (int) n_evts;
2798 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
2799 int maxevents, double wait_for_time)
2801 vcl_worker_t *wrk = vcl_worker_get_current ();
2802 vcl_session_t *vep_session;
2806 if (PREDICT_FALSE (maxevents <= 0))
2808 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
2809 return VPPCOM_EINVAL;
2812 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2814 return VPPCOM_EBADFD;
2816 if (PREDICT_FALSE (!vep_session->is_vep))
2818 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
2819 return VPPCOM_EINVAL;
2822 memset (events, 0, sizeof (*events) * maxevents);
2824 if (vec_len (wrk->unhandled_evts_vector))
2826 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2828 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
2830 if (n_evts == maxevents)
2832 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
2836 vec_reset_length (wrk->unhandled_evts_vector);
2839 if (vcm->cfg.use_mq_eventfd)
2840 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
2843 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
2848 vppcom_session_attr (uint32_t session_handle, uint32_t op,
2849 void *buffer, uint32_t * buflen)
2851 vcl_worker_t *wrk = vcl_worker_get_current ();
2852 vcl_session_t *session;
2854 u32 *flags = buffer, tmp_flags = 0;
2855 vppcom_endpt_t *ep = buffer;
2857 session = vcl_session_get_w_handle (wrk, session_handle);
2859 return VPPCOM_EBADFD;
2863 case VPPCOM_ATTR_GET_NREAD:
2864 rv = vcl_session_read_ready (session);
2865 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
2869 case VPPCOM_ATTR_GET_NWRITE:
2870 rv = vcl_session_write_ready (session);
2871 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
2875 case VPPCOM_ATTR_GET_FLAGS:
2876 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
2878 *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr,
2879 VCL_SESS_ATTR_NONBLOCK));
2880 *buflen = sizeof (*flags);
2881 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
2882 "is_nonblocking = %u", session_handle, *flags,
2883 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2889 case VPPCOM_ATTR_SET_FLAGS:
2890 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
2892 if (*flags & O_NONBLOCK)
2893 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
2895 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
2897 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
2898 " is_nonblocking = %u", session_handle, *flags,
2899 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2905 case VPPCOM_ATTR_GET_PEER_ADDR:
2906 if (PREDICT_TRUE (buffer && buflen &&
2907 (*buflen >= sizeof (*ep)) && ep->ip))
2909 ep->is_ip4 = session->transport.is_ip4;
2910 ep->port = session->transport.rmt_port;
2911 if (session->transport.is_ip4)
2912 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
2913 sizeof (ip4_address_t));
2915 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
2916 sizeof (ip6_address_t));
2917 *buflen = sizeof (*ep);
2918 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
2919 "addr = %U, port %u", session_handle, ep->is_ip4,
2920 format_ip46_address, &session->transport.rmt_ip,
2921 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2922 clib_net_to_host_u16 (ep->port));
2928 case VPPCOM_ATTR_GET_LCL_ADDR:
2929 if (PREDICT_TRUE (buffer && buflen &&
2930 (*buflen >= sizeof (*ep)) && ep->ip))
2932 ep->is_ip4 = session->transport.is_ip4;
2933 ep->port = session->transport.lcl_port;
2934 if (session->transport.is_ip4)
2935 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
2936 sizeof (ip4_address_t));
2938 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
2939 sizeof (ip6_address_t));
2940 *buflen = sizeof (*ep);
2941 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
2942 " port %d", session_handle, ep->is_ip4, format_ip46_address,
2943 &session->transport.lcl_ip,
2944 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2945 clib_net_to_host_u16 (ep->port));
2951 case VPPCOM_ATTR_SET_LCL_ADDR:
2952 if (PREDICT_TRUE (buffer && buflen &&
2953 (*buflen >= sizeof (*ep)) && ep->ip))
2955 session->transport.is_ip4 = ep->is_ip4;
2956 session->transport.lcl_port = ep->port;
2957 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
2958 *buflen = sizeof (*ep);
2959 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
2960 " port %d", session_handle, ep->is_ip4, format_ip46_address,
2961 &session->transport.lcl_ip,
2962 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2963 clib_net_to_host_u16 (ep->port));
2969 case VPPCOM_ATTR_GET_LIBC_EPFD:
2970 rv = session->libc_epfd;
2971 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
2974 case VPPCOM_ATTR_SET_LIBC_EPFD:
2975 if (PREDICT_TRUE (buffer && buflen &&
2976 (*buflen == sizeof (session->libc_epfd))))
2978 session->libc_epfd = *(int *) buffer;
2979 *buflen = sizeof (session->libc_epfd);
2981 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
2982 session->libc_epfd, *buflen);
2988 case VPPCOM_ATTR_GET_PROTOCOL:
2989 if (buffer && buflen && (*buflen >= sizeof (int)))
2991 *(int *) buffer = session->session_type;
2992 *buflen = sizeof (int);
2994 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
2995 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3001 case VPPCOM_ATTR_GET_LISTEN:
3002 if (buffer && buflen && (*buflen >= sizeof (int)))
3004 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3005 VCL_SESS_ATTR_LISTEN);
3006 *buflen = sizeof (int);
3008 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3015 case VPPCOM_ATTR_GET_ERROR:
3016 if (buffer && buflen && (*buflen >= sizeof (int)))
3018 *(int *) buffer = 0;
3019 *buflen = sizeof (int);
3021 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3022 *(int *) buffer, *buflen);
3028 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3029 if (buffer && buflen && (*buflen >= sizeof (u32)))
3033 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3034 session->tx_fifo ? session->tx_fifo->nitems :
3035 vcm->cfg.tx_fifo_size);
3036 *buflen = sizeof (u32);
3038 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3039 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3046 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3047 if (buffer && buflen && (*buflen == sizeof (u32)))
3050 session->sndbuf_size = *(u32 *) buffer;
3051 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3052 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3059 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3060 if (buffer && buflen && (*buflen >= sizeof (u32)))
3064 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3065 session->rx_fifo ? session->rx_fifo->nitems :
3066 vcm->cfg.rx_fifo_size);
3067 *buflen = sizeof (u32);
3069 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3070 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3076 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3077 if (buffer && buflen && (*buflen == sizeof (u32)))
3080 session->rcvbuf_size = *(u32 *) buffer;
3081 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3082 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3089 case VPPCOM_ATTR_GET_REUSEADDR:
3090 if (buffer && buflen && (*buflen >= sizeof (int)))
3093 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3094 VCL_SESS_ATTR_REUSEADDR);
3095 *buflen = sizeof (int);
3097 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3098 *(int *) buffer, *buflen);
3104 case VPPCOM_ATTR_SET_REUSEADDR:
3105 if (buffer && buflen && (*buflen == sizeof (int)) &&
3106 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3109 if (*(int *) buffer)
3110 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
3112 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
3114 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3115 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEADDR),
3122 case VPPCOM_ATTR_GET_REUSEPORT:
3123 if (buffer && buflen && (*buflen >= sizeof (int)))
3126 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3127 VCL_SESS_ATTR_REUSEPORT);
3128 *buflen = sizeof (int);
3130 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3131 *(int *) buffer, *buflen);
3137 case VPPCOM_ATTR_SET_REUSEPORT:
3138 if (buffer && buflen && (*buflen == sizeof (int)) &&
3139 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3142 if (*(int *) buffer)
3143 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
3145 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
3147 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3148 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEPORT),
3155 case VPPCOM_ATTR_GET_BROADCAST:
3156 if (buffer && buflen && (*buflen >= sizeof (int)))
3159 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3160 VCL_SESS_ATTR_BROADCAST);
3161 *buflen = sizeof (int);
3163 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3164 *(int *) buffer, *buflen);
3170 case VPPCOM_ATTR_SET_BROADCAST:
3171 if (buffer && buflen && (*buflen == sizeof (int)))
3174 if (*(int *) buffer)
3175 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
3177 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
3179 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3180 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_BROADCAST),
3187 case VPPCOM_ATTR_GET_V6ONLY:
3188 if (buffer && buflen && (*buflen >= sizeof (int)))
3191 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3192 VCL_SESS_ATTR_V6ONLY);
3193 *buflen = sizeof (int);
3195 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3196 *(int *) buffer, *buflen);
3202 case VPPCOM_ATTR_SET_V6ONLY:
3203 if (buffer && buflen && (*buflen == sizeof (int)))
3206 if (*(int *) buffer)
3207 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
3209 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
3211 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3212 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_V6ONLY),
3219 case VPPCOM_ATTR_GET_KEEPALIVE:
3220 if (buffer && buflen && (*buflen >= sizeof (int)))
3223 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3224 VCL_SESS_ATTR_KEEPALIVE);
3225 *buflen = sizeof (int);
3227 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3228 *(int *) buffer, *buflen);
3234 case VPPCOM_ATTR_SET_KEEPALIVE:
3235 if (buffer && buflen && (*buflen == sizeof (int)))
3238 if (*(int *) buffer)
3239 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3241 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3243 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3244 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_KEEPALIVE),
3251 case VPPCOM_ATTR_GET_TCP_NODELAY:
3252 if (buffer && buflen && (*buflen >= sizeof (int)))
3255 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3256 VCL_SESS_ATTR_TCP_NODELAY);
3257 *buflen = sizeof (int);
3259 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3260 *(int *) buffer, *buflen);
3266 case VPPCOM_ATTR_SET_TCP_NODELAY:
3267 if (buffer && buflen && (*buflen == sizeof (int)))
3270 if (*(int *) buffer)
3271 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3273 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3275 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3276 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_NODELAY),
3283 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3284 if (buffer && buflen && (*buflen >= sizeof (int)))
3287 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3288 VCL_SESS_ATTR_TCP_KEEPIDLE);
3289 *buflen = sizeof (int);
3291 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3292 *(int *) buffer, *buflen);
3298 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3299 if (buffer && buflen && (*buflen == sizeof (int)))
3302 if (*(int *) buffer)
3303 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3305 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3307 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3308 VCL_SESS_ATTR_TEST (session->attr,
3309 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3315 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3316 if (buffer && buflen && (*buflen >= sizeof (int)))
3319 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3320 VCL_SESS_ATTR_TCP_KEEPINTVL);
3321 *buflen = sizeof (int);
3323 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3324 *(int *) buffer, *buflen);
3330 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3331 if (buffer && buflen && (*buflen == sizeof (int)))
3334 if (*(int *) buffer)
3335 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3337 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3339 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3340 VCL_SESS_ATTR_TEST (session->attr,
3341 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3347 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3348 if (buffer && buflen && (*buflen >= sizeof (u32)))
3351 *(u32 *) buffer = session->user_mss;
3352 *buflen = sizeof (int);
3354 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3355 *(int *) buffer, *buflen);
3361 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3362 if (buffer && buflen && (*buflen == sizeof (u32)))
3365 session->user_mss = *(u32 *) buffer;
3367 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3368 session->user_mss, *buflen);
3374 case VPPCOM_ATTR_SET_SHUT:
3375 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3376 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3377 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3378 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3381 case VPPCOM_ATTR_GET_SHUT:
3382 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3384 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3387 *(int *) buffer = SHUT_RD;
3388 else if (tmp_flags == 2)
3389 *(int *) buffer = SHUT_WR;
3390 else if (tmp_flags == 3)
3391 *(int *) buffer = SHUT_RDWR;
3392 *buflen = sizeof (int);
3403 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3404 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3406 vcl_worker_t *wrk = vcl_worker_get_current ();
3408 vcl_session_t *session = 0;
3412 session = vcl_session_get_w_handle (wrk, session_handle);
3413 if (PREDICT_FALSE (!session))
3415 VDBG (0, "sh 0x%llx is closed!", session_handle);
3416 return VPPCOM_EBADFD;
3418 ep->is_ip4 = session->transport.is_ip4;
3419 ep->port = session->transport.rmt_port;
3423 rv = vppcom_session_read (session_handle, buffer, buflen);
3424 else if (flags & MSG_PEEK)
3425 rv = vppcom_session_peek (session_handle, buffer, buflen);
3428 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3429 return VPPCOM_EAFNOSUPPORT;
3434 if (session->transport.is_ip4)
3435 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3436 sizeof (ip4_address_t));
3438 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3439 sizeof (ip6_address_t));
3446 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3447 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3450 return VPPCOM_EINVAL;
3455 return VPPCOM_EINVAL;
3460 // TBD check the flags and do the right thing
3461 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3464 return (vppcom_session_write_inline (session_handle, buffer, buflen, 1));
3468 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3470 vcl_worker_t *wrk = vcl_worker_get_current ();
3471 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3472 u32 i, keep_trying = 1;
3473 svm_msg_q_msg_t msg;
3477 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3480 return VPPCOM_EFAULT;
3484 vcl_session_t *session;
3486 /* Dequeue all events and drop all unhandled io events */
3487 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3489 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3490 vcl_handle_mq_event (wrk, e);
3491 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3493 vec_reset_length (wrk->unhandled_evts_vector);
3495 for (i = 0; i < n_sids; i++)
3497 session = vcl_session_get (wrk, vp[i].sh);
3500 vp[i].revents = POLLHUP;
3507 if (POLLIN & vp[i].events)
3509 rv = vcl_session_read_ready (session);
3512 vp[i].revents |= POLLIN;
3519 case VPPCOM_ECONNRESET:
3520 vp[i].revents = POLLHUP;
3524 vp[i].revents = POLLERR;
3531 if (POLLOUT & vp[i].events)
3533 rv = vcl_session_write_ready (session);
3536 vp[i].revents |= POLLOUT;
3543 case VPPCOM_ECONNRESET:
3544 vp[i].revents = POLLHUP;
3548 vp[i].revents = POLLERR;
3555 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3557 vp[i].revents = POLLNVAL;
3561 if (wait_for_time != -1)
3562 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3564 while ((num_ev == 0) && keep_trying);
3570 vppcom_mq_epoll_fd (void)
3572 vcl_worker_t *wrk = vcl_worker_get_current ();
3573 return wrk->mqs_epfd;
3577 vppcom_session_index (vcl_session_handle_t session_handle)
3579 return session_handle & 0xFFFFFF;
3583 vppcom_session_worker (vcl_session_handle_t session_handle)
3585 return session_handle >> 24;
3589 vppcom_worker_register (void)
3591 if (!vcl_worker_alloc_and_init ())
3592 return VPPCOM_EEXIST;
3594 if (vcl_worker_set_bapi ())
3595 return VPPCOM_EEXIST;
3597 if (vcl_worker_register_with_vpp ())
3598 return VPPCOM_EEXIST;
3604 vppcom_worker_unregister (void)
3606 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3607 vcl_set_worker_index (~0);
3611 vppcom_worker_index (void)
3613 return vcl_get_worker_index ();
3617 vppcom_worker_mqs_epfd (void)
3619 vcl_worker_t *wrk = vcl_worker_get_current ();
3620 if (!vcm->cfg.use_mq_eventfd)
3622 return wrk->mqs_epfd;
3626 vppcom_session_is_connectable_listener (uint32_t session_handle)
3628 vcl_session_t *session;
3629 vcl_worker_t *wrk = vcl_worker_get_current ();
3630 session = vcl_session_get_w_handle (wrk, session_handle);
3632 return VPPCOM_EBADFD;
3633 return vcl_session_is_connectable_listener (wrk, session);
3637 vppcom_session_listener (uint32_t session_handle)
3639 vcl_worker_t *wrk = vcl_worker_get_current ();
3640 vcl_session_t *listen_session, *session;
3641 session = vcl_session_get_w_handle (wrk, session_handle);
3643 return VPPCOM_EBADFD;
3644 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3645 return VPPCOM_EBADFD;
3646 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3647 if (!listen_session)
3648 return VPPCOM_EBADFD;
3649 return vcl_session_handle (listen_session);
3653 vppcom_session_n_accepted (uint32_t session_handle)
3655 vcl_worker_t *wrk = vcl_worker_get_current ();
3656 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3658 return VPPCOM_EBADFD;
3659 return session->n_accepted_sessions;
3663 * fd.io coding-style-patch-verification: ON
3666 * eval: (c-set-style "gnu")