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 (vcl_session_is_cl (session))
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);
659 vcl_msg->accepted_msg = *msg;
660 /* Session handle points to listener until fully accepted by app */
661 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
666 static vcl_session_t *
667 vcl_session_disconnected_handler (vcl_worker_t * wrk,
668 session_disconnected_msg_t * msg)
670 vcl_session_t *session;
672 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
675 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
679 /* Caught a disconnect before actually accepting the session */
680 if (session->session_state == STATE_LISTEN)
682 if (!vcl_flag_accepted_session (session, msg->handle,
683 VCL_ACCEPTED_F_CLOSED))
684 VDBG (0, "session was not accepted!");
688 session->session_state = STATE_VPP_CLOSING;
693 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
695 session_req_worker_update_msg_t *msg;
698 msg = (session_req_worker_update_msg_t *) data;
699 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
703 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
707 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
709 session_worker_update_reply_msg_t *msg;
712 msg = (session_worker_update_reply_msg_t *) data;
713 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
716 VDBG (0, "unknown handle 0x%llx", msg->handle);
719 if (vcl_wait_for_segment (msg->segment_handle))
721 clib_warning ("segment for session %u couldn't be mounted!",
728 s->rx_fifo = uword_to_pointer (msg->rx_fifo, svm_fifo_t *);
729 s->tx_fifo = uword_to_pointer (msg->tx_fifo, svm_fifo_t *);
730 s->rx_fifo->client_session_index = s->session_index;
731 s->tx_fifo->client_session_index = s->session_index;
732 s->rx_fifo->client_thread_index = wrk->wrk_index;
733 s->tx_fifo->client_thread_index = wrk->wrk_index;
735 s->session_state = STATE_UPDATED;
737 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
738 s->vpp_handle, wrk->wrk_index);
742 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
744 session_disconnected_msg_t *disconnected_msg;
745 vcl_session_t *session;
747 switch (e->event_type)
749 case SESSION_IO_EVT_RX:
750 case SESSION_IO_EVT_TX:
751 session = vcl_session_get (wrk, e->session_index);
752 if (!session || !(session->session_state & STATE_OPEN))
754 vec_add1 (wrk->unhandled_evts_vector, *e);
756 case SESSION_CTRL_EVT_ACCEPTED:
757 vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
759 case SESSION_CTRL_EVT_CONNECTED:
760 vcl_session_connected_handler (wrk,
761 (session_connected_msg_t *) e->data);
763 case SESSION_CTRL_EVT_DISCONNECTED:
764 disconnected_msg = (session_disconnected_msg_t *) e->data;
765 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
768 VDBG (0, "disconnected session %u [0x%llx]", session->session_index,
769 session->vpp_handle);
771 case SESSION_CTRL_EVT_RESET:
772 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
774 case SESSION_CTRL_EVT_BOUND:
775 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
777 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
778 vcl_session_unlisten_reply_handler (wrk, e->data);
780 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
781 vcl_session_req_worker_update_handler (wrk, e->data);
783 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
784 vcl_session_worker_update_reply_handler (wrk, e->data);
787 clib_warning ("unhandled %u", e->event_type);
793 vppcom_wait_for_session_state_change (u32 session_index,
794 vcl_session_state_t state,
797 vcl_worker_t *wrk = vcl_worker_get_current ();
798 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
799 vcl_session_t *volatile session;
805 session = vcl_session_get (wrk, session_index);
806 if (PREDICT_FALSE (!session))
808 return VPPCOM_EBADFD;
810 if (session->session_state & state)
814 if (session->session_state & STATE_FAILED)
816 return VPPCOM_ECONNREFUSED;
819 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
824 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
825 vcl_handle_mq_event (wrk, e);
826 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
828 while (clib_time_now (&wrk->clib_time) < timeout);
830 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
831 vppcom_session_state_str (state));
832 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
834 return VPPCOM_ETIMEDOUT;
838 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
840 vcl_session_state_t state;
844 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
847 vec_foreach (sip, wrk->pending_session_wrk_updates)
849 s = vcl_session_get (wrk, *sip);
850 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
851 state = s->session_state;
852 vppcom_wait_for_session_state_change (s->session_index, STATE_UPDATED, 5);
853 s->session_state = state;
855 vec_reset_length (wrk->pending_session_wrk_updates);
859 vcl_flush_mq_events (void)
861 vcl_worker_t *wrk = vcl_worker_get_current ();
862 svm_msg_q_msg_t *msg;
867 mq = wrk->app_event_queue;
869 vcl_mq_dequeue_batch (wrk, mq, ~0);
870 svm_msg_q_unlock (mq);
872 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
874 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
875 e = svm_msg_q_msg_data (mq, msg);
876 vcl_handle_mq_event (wrk, e);
877 svm_msg_q_free_msg (mq, msg);
879 vec_reset_length (wrk->mq_msg_vector);
880 vcl_handle_pending_wrk_updates (wrk);
884 vppcom_app_session_enable (void)
888 if (vcm->app_state != STATE_APP_ENABLED)
890 vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
891 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
892 if (PREDICT_FALSE (rv))
894 VDBG (0, "application session enable timed out! returning %d (%s)",
895 rv, vppcom_retval_str (rv));
903 vppcom_app_attach (void)
907 vppcom_app_send_attach ();
908 rv = vcl_wait_for_app_state_change (STATE_APP_ATTACHED);
909 if (PREDICT_FALSE (rv))
911 VDBG (0, "application attach timed out! returning %d (%s)", rv,
912 vppcom_retval_str (rv));
920 vppcom_session_unbind (u32 session_handle)
922 vcl_worker_t *wrk = vcl_worker_get_current ();
923 session_accepted_msg_t *accepted_msg;
924 vcl_session_t *session = 0;
925 vcl_session_msg_t *evt;
927 session = vcl_session_get_w_handle (wrk, session_handle);
929 return VPPCOM_EBADFD;
931 /* Flush pending accept events, if any */
932 while (clib_fifo_elts (session->accept_evts_fifo))
934 clib_fifo_sub2 (session->accept_evts_fifo, evt);
935 accepted_msg = &evt->accepted_msg;
936 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
937 vcl_send_session_accepted_reply (session->vpp_evt_q,
938 accepted_msg->context,
939 session->vpp_handle, -1);
941 clib_fifo_free (session->accept_evts_fifo);
943 vcl_send_session_unlisten (wrk, session);
945 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
946 session->vpp_handle);
947 vcl_evt (VCL_EVT_UNBIND, session);
949 session->vpp_handle = ~0;
950 session->session_state = STATE_DISCONNECT;
956 vppcom_session_disconnect (u32 session_handle)
958 vcl_worker_t *wrk = vcl_worker_get_current ();
959 svm_msg_q_t *vpp_evt_q;
960 vcl_session_t *session, *listen_session;
961 vcl_session_state_t state;
964 session = vcl_session_get_w_handle (wrk, session_handle);
966 return VPPCOM_EBADFD;
968 vpp_handle = session->vpp_handle;
969 state = session->session_state;
971 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
972 vpp_handle, state, vppcom_session_state_str (state));
974 if (PREDICT_FALSE (state & STATE_LISTEN))
976 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
977 return VPPCOM_EBADFD;
980 if (state & STATE_VPP_CLOSING)
982 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
983 vcl_send_session_disconnected_reply (vpp_evt_q, wrk->my_client_index,
985 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
986 session->session_index, vpp_handle);
990 VDBG (1, "session %u [0x%llx]: sending disconnect...",
991 session->session_index, vpp_handle);
992 vcl_send_session_disconnect (wrk, session);
995 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
997 listen_session = vcl_session_get (wrk, session->listener_index);
998 listen_session->n_accepted_sessions--;
1007 * Notify vpp of the disconnect and mark the worker as free. If we're the
1008 * last worker, do a full cleanup otherwise, since we're probably a forked
1009 * child, avoid syscalls as much as possible. We might've lost privileges.
1012 vppcom_app_exit (void)
1014 if (!pool_elts (vcm->workers))
1016 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1017 vcl_set_worker_index (~0);
1018 vcl_elog_stop (vcm);
1019 if (vec_len (vcm->workers) == 1)
1020 vppcom_disconnect_from_vpp ();
1022 vl_client_send_disconnect (1 /* vpp should cleanup */ );
1026 * VPPCOM Public API functions
1029 vppcom_app_create (char *app_name)
1031 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1036 VDBG (1, "already initialized");
1037 return VPPCOM_EEXIST;
1041 vppcom_cfg (&vcm->cfg);
1042 vcl_cfg = &vcm->cfg;
1044 vcm->main_cpu = pthread_self ();
1045 vcm->main_pid = getpid ();
1046 vcm->app_name = format (0, "%s", app_name);
1047 vppcom_init_error_string_table ();
1048 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1049 20 /* timeout in secs */ );
1050 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1051 clib_spinlock_init (&vcm->workers_lock);
1052 clib_rwlock_init (&vcm->segment_table_lock);
1053 atexit (vppcom_app_exit);
1055 /* Allocate default worker */
1056 vcl_worker_alloc_and_init ();
1058 /* API hookup and connect to VPP */
1059 vppcom_api_hookup ();
1060 vcl_elog_init (vcm);
1061 vcm->app_state = STATE_APP_START;
1062 rv = vppcom_connect_to_vpp (app_name);
1065 VERR ("couldn't connect to VPP!");
1068 VDBG (0, "sending session enable");
1069 rv = vppcom_app_session_enable ();
1072 VERR ("vppcom_app_session_enable() failed!");
1076 VDBG (0, "sending app attach");
1077 rv = vppcom_app_attach ();
1080 VERR ("vppcom_app_attach() failed!");
1084 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1085 vcm->workers[0].my_client_index, vcm->workers[0].my_client_index);
1091 vppcom_app_destroy (void)
1093 struct dlmallinfo mi;
1097 if (!pool_elts (vcm->workers))
1100 vcl_evt (VCL_EVT_DETACH, vcm);
1102 vcl_send_app_detach (vcl_worker_get_current ());
1105 pool_foreach (wrk, vcm->workers, ({
1106 if (pool_elts (vcm->workers) == 1)
1107 vl_client_disconnect_from_vlib ();
1108 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1112 vcl_elog_stop (vcm);
1115 * Free the heap and fix vcm
1117 heap = clib_mem_get_heap ();
1118 mi = mspace_mallinfo (heap);
1119 munmap (mspace_least_addr (heap), mi.arena);
1121 vcm = &_vppcom_main;
1125 vppcom_session_create (u8 proto, u8 is_nonblocking)
1127 vcl_worker_t *wrk = vcl_worker_get_current ();
1128 vcl_session_t *session;
1130 session = vcl_session_alloc (wrk);
1132 session->session_type = proto;
1133 session->session_state = STATE_START;
1134 session->vpp_handle = ~0;
1135 session->is_dgram = vcl_proto_is_dgram (proto);
1138 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
1140 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1141 is_nonblocking, session_index);
1143 VDBG (0, "created session %u", session->session_index);
1145 return vcl_session_handle (session);
1149 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * session,
1150 vcl_session_handle_t sh, u8 do_disconnect)
1152 vcl_session_state_t state;
1153 u32 next_sh, vep_sh;
1158 is_vep = session->is_vep;
1159 next_sh = session->vep.next_sh;
1160 vep_sh = session->vep.vep_sh;
1161 state = session->session_state;
1162 vpp_handle = session->vpp_handle;
1164 VDBG (1, "session %u [0x%llx] closing", session->session_index, vpp_handle);
1168 while (next_sh != ~0)
1170 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1171 if (PREDICT_FALSE (rv < 0))
1172 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1173 " failed! rv %d (%s)", vpp_handle, next_sh, vep_sh, rv,
1174 vppcom_retval_str (rv));
1176 next_sh = session->vep.next_sh;
1181 if (session->is_vep_session)
1183 rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, sh, 0);
1185 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1186 "failed! rv %d (%s)", session->session_index, vpp_handle,
1187 vep_sh, rv, vppcom_retval_str (rv));
1192 VDBG (1, "session %u [0x%llx] disconnect skipped",
1193 session->session_index, vpp_handle);
1197 if (state & STATE_LISTEN)
1199 rv = vppcom_session_unbind (sh);
1200 if (PREDICT_FALSE (rv < 0))
1201 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1202 "rv %d (%s)", session->session_index, vpp_handle, rv,
1203 vppcom_retval_str (rv));
1206 else if ((state & STATE_OPEN)
1207 || (vcl_session_is_connectable_listener (wrk, session)))
1209 rv = vppcom_session_disconnect (sh);
1210 if (PREDICT_FALSE (rv < 0))
1211 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1212 " rv %d (%s)", session->session_index, vpp_handle,
1213 rv, vppcom_retval_str (rv));
1215 else if (state == STATE_DISCONNECT)
1217 svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, session);
1218 vcl_send_session_reset_reply (mq, wrk->my_client_index,
1219 session->vpp_handle, 0);
1223 VDBG (0, "session %u [0x%llx] removed", session->session_index, vpp_handle);
1226 vcl_session_table_del_vpp_handle (wrk, vpp_handle);
1227 vcl_session_free (wrk, session);
1228 vcl_evt (VCL_EVT_CLOSE, session, rv);
1234 vppcom_session_close (uint32_t session_handle)
1236 vcl_worker_t *wrk = vcl_worker_get_current ();
1237 vcl_session_t *session;
1239 session = vcl_session_get_w_handle (wrk, session_handle);
1241 return VPPCOM_EBADFD;
1242 return vcl_session_cleanup (wrk, session, session_handle,
1243 1 /* do_disconnect */ );
1247 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1249 vcl_worker_t *wrk = vcl_worker_get_current ();
1250 vcl_session_t *session = 0;
1253 return VPPCOM_EINVAL;
1255 session = vcl_session_get_w_handle (wrk, session_handle);
1257 return VPPCOM_EBADFD;
1259 if (session->is_vep)
1261 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1262 session->session_index);
1263 return VPPCOM_EBADFD;
1266 session->transport.is_ip4 = ep->is_ip4;
1268 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1269 sizeof (ip4_address_t));
1271 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1272 sizeof (ip6_address_t));
1273 session->transport.lcl_port = ep->port;
1275 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1276 "proto %s", session->session_index, session_handle,
1277 session->transport.is_ip4 ? "IPv4" : "IPv6",
1278 format_ip46_address, &session->transport.lcl_ip,
1279 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1280 clib_net_to_host_u16 (session->transport.lcl_port),
1281 vppcom_proto_str (session->session_type));
1282 vcl_evt (VCL_EVT_BIND, session);
1284 if (session->session_type == VPPCOM_PROTO_UDP)
1285 vppcom_session_listen (session_handle, 10);
1291 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1293 vcl_worker_t *wrk = vcl_worker_get_current ();
1294 vcl_session_t *listen_session = 0;
1295 u64 listen_vpp_handle;
1298 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1299 if (!listen_session || listen_session->is_vep)
1300 return VPPCOM_EBADFD;
1302 if (q_len == 0 || q_len == ~0)
1303 q_len = vcm->cfg.listen_queue_size;
1305 listen_vpp_handle = listen_session->vpp_handle;
1306 if (listen_session->session_state & STATE_LISTEN)
1308 VDBG (0, "session %u [0x%llx]: already in listen state!",
1309 listen_sh, listen_vpp_handle);
1313 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1316 * Send listen request to vpp and wait for reply
1318 vcl_send_session_listen (wrk, listen_session);
1319 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1321 vcm->cfg.session_timeout);
1323 if (PREDICT_FALSE (rv))
1325 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1326 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1327 listen_sh, listen_session->vpp_handle, rv,
1328 vppcom_retval_str (rv));
1336 vppcom_session_tls_add_cert (uint32_t session_handle, char *cert,
1340 vcl_worker_t *wrk = vcl_worker_get_current ();
1341 vcl_session_t *session = 0;
1343 session = vcl_session_get_w_handle (wrk, session_handle);
1345 return VPPCOM_EBADFD;
1347 if (cert_len == 0 || cert_len == ~0)
1348 return VPPCOM_EBADFD;
1351 * Send listen request to vpp and wait for reply
1353 vppcom_send_application_tls_cert_add (session, cert, cert_len);
1354 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1355 vcl_wait_for_app_state_change (STATE_APP_READY);
1361 vppcom_session_tls_add_key (uint32_t session_handle, char *key,
1365 vcl_worker_t *wrk = vcl_worker_get_current ();
1366 vcl_session_t *session = 0;
1368 session = vcl_session_get_w_handle (wrk, session_handle);
1370 return VPPCOM_EBADFD;
1372 if (key_len == 0 || key_len == ~0)
1373 return VPPCOM_EBADFD;
1375 vppcom_send_application_tls_key_add (session, key, key_len);
1376 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1377 vcl_wait_for_app_state_change (STATE_APP_READY);
1382 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1386 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1388 return VPPCOM_EBADFD;
1391 if ((ls->session_state != STATE_LISTEN)
1392 && (!vcl_session_is_connectable_listener (wrk, ls)))
1395 "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1396 " (%s)", ls->vpp_handle, ls->session_state,
1397 vppcom_session_state_str (ls->session_state));
1398 return VPPCOM_EBADFD;
1404 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1406 if (!strcmp (proto_str, "TCP"))
1407 *proto = VPPCOM_PROTO_TCP;
1408 else if (!strcmp (proto_str, "tcp"))
1409 *proto = VPPCOM_PROTO_TCP;
1410 else if (!strcmp (proto_str, "UDP"))
1411 *proto = VPPCOM_PROTO_UDP;
1412 else if (!strcmp (proto_str, "udp"))
1413 *proto = VPPCOM_PROTO_UDP;
1414 else if (!strcmp (proto_str, "UDPC"))
1415 *proto = VPPCOM_PROTO_UDPC;
1416 else if (!strcmp (proto_str, "udpc"))
1417 *proto = VPPCOM_PROTO_UDPC;
1418 else if (!strcmp (proto_str, "SCTP"))
1419 *proto = VPPCOM_PROTO_SCTP;
1420 else if (!strcmp (proto_str, "sctp"))
1421 *proto = VPPCOM_PROTO_SCTP;
1422 else if (!strcmp (proto_str, "TLS"))
1423 *proto = VPPCOM_PROTO_TLS;
1424 else if (!strcmp (proto_str, "tls"))
1425 *proto = VPPCOM_PROTO_TLS;
1426 else if (!strcmp (proto_str, "QUIC"))
1427 *proto = VPPCOM_PROTO_QUIC;
1428 else if (!strcmp (proto_str, "quic"))
1429 *proto = VPPCOM_PROTO_QUIC;
1436 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1439 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1440 vcl_worker_t *wrk = vcl_worker_get_current ();
1441 session_accepted_msg_t accepted_msg;
1442 vcl_session_t *listen_session = 0;
1443 vcl_session_t *client_session = 0;
1444 vcl_session_msg_t *evt;
1445 svm_msg_q_msg_t msg;
1450 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1451 if (!listen_session)
1452 return VPPCOM_EBADFD;
1454 listen_session_index = listen_session->session_index;
1455 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1458 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1460 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1461 accept_flags = evt->flags;
1462 accepted_msg = evt->accepted_msg;
1466 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1467 VCL_SESS_ATTR_NONBLOCK);
1470 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1471 return VPPCOM_EAGAIN;
1473 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1474 return VPPCOM_EAGAIN;
1476 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1477 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1479 vcl_handle_mq_event (wrk, e);
1480 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1483 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1484 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1490 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1491 listen_session_index);
1492 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1493 return VPPCOM_ECONNABORTED;
1495 listen_session = vcl_session_get (wrk, listen_session_index);
1496 client_session = vcl_session_get (wrk, client_session_index);
1498 if (flags & O_NONBLOCK)
1499 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1501 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1502 " flags %d, is_nonblocking %u", listen_session->session_index,
1503 listen_session->vpp_handle, client_session_index,
1504 client_session->vpp_handle, flags,
1505 VCL_SESS_ATTR_TEST (client_session->attr, VCL_SESS_ATTR_NONBLOCK));
1509 ep->is_ip4 = client_session->transport.is_ip4;
1510 ep->port = client_session->transport.rmt_port;
1511 if (client_session->transport.is_ip4)
1512 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1513 sizeof (ip4_address_t));
1515 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1516 sizeof (ip6_address_t));
1519 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1520 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1521 client_session_index, client_session->vpp_handle,
1522 format_ip46_address, &client_session->transport.rmt_ip,
1523 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1524 clib_net_to_host_u16 (client_session->transport.rmt_port),
1525 format_ip46_address, &client_session->transport.lcl_ip,
1526 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1527 clib_net_to_host_u16 (client_session->transport.lcl_port));
1528 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1529 client_session_index);
1532 * Session might have been closed already
1536 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1537 client_session->session_state = STATE_VPP_CLOSING;
1538 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1539 client_session->session_state = STATE_DISCONNECT;
1541 return vcl_session_handle (client_session);
1545 vcl_ip_copy_from_ep (ip46_address_t * ip, vppcom_endpt_t * ep)
1548 clib_memcpy_fast (&ip->ip4, ep->ip, sizeof (ip4_address_t));
1550 clib_memcpy_fast (&ip->ip6, ep->ip, sizeof (ip6_address_t));
1554 vcl_ip_copy_to_ep (ip46_address_t * ip, vppcom_endpt_t * ep, u8 is_ip4)
1556 ep->is_ip4 = is_ip4;
1558 clib_memcpy_fast (ep->ip, &ip->ip4, sizeof (ip4_address_t));
1560 clib_memcpy_fast (ep->ip, &ip->ip6, sizeof (ip6_address_t));
1564 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1566 vcl_worker_t *wrk = vcl_worker_get_current ();
1567 vcl_session_t *session = 0;
1571 session = vcl_session_get_w_handle (wrk, session_handle);
1573 return VPPCOM_EBADFD;
1574 session_index = session->session_index;
1576 if (PREDICT_FALSE (session->is_vep))
1578 VDBG (0, "ERROR: cannot connect epoll session %u!",
1579 session->session_index);
1580 return VPPCOM_EBADFD;
1583 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1585 VDBG (0, "session handle %u [0x%llx]: session already "
1586 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1587 session_handle, session->vpp_handle,
1588 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1589 &session->transport.rmt_ip, session->transport.is_ip4 ?
1590 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1591 clib_net_to_host_u16 (session->transport.rmt_port),
1592 vppcom_proto_str (session->session_type), session->session_state,
1593 vppcom_session_state_str (session->session_state));
1597 session->transport.is_ip4 = server_ep->is_ip4;
1598 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1599 session->transport.rmt_port = server_ep->port;
1600 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1602 VDBG (0, "session handle %u: connecting to server %s %U "
1603 "port %d proto %s", session_handle,
1604 session->transport.is_ip4 ? "IPv4" : "IPv6",
1605 format_ip46_address,
1606 &session->transport.rmt_ip, session->transport.is_ip4 ?
1607 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1608 clib_net_to_host_u16 (session->transport.rmt_port),
1609 vppcom_proto_str (session->session_type));
1611 vcl_send_session_connect (wrk, session);
1613 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK))
1614 return VPPCOM_EINPROGRESS;
1617 * Wait for reply from vpp if blocking
1619 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1620 vcm->cfg.session_timeout);
1622 session = vcl_session_get (wrk, session_index);
1623 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1624 session->vpp_handle, rv ? "failed" : "succeeded");
1630 vppcom_session_stream_connect (uint32_t session_handle,
1631 uint32_t parent_session_handle)
1633 vcl_worker_t *wrk = vcl_worker_get_current ();
1634 vcl_session_t *session, *parent_session;
1635 u32 session_index, parent_session_index;
1638 session = vcl_session_get_w_handle (wrk, session_handle);
1640 return VPPCOM_EBADFD;
1641 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1642 if (!parent_session)
1643 return VPPCOM_EBADFD;
1645 session_index = session->session_index;
1646 parent_session_index = parent_session->session_index;
1647 if (PREDICT_FALSE (session->is_vep))
1649 VDBG (0, "ERROR: cannot connect epoll session %u!",
1650 session->session_index);
1651 return VPPCOM_EBADFD;
1654 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1656 VDBG (0, "session handle %u [0x%llx]: session already "
1657 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1658 session_handle, session->vpp_handle,
1659 parent_session_handle, parent_session->vpp_handle,
1660 vppcom_proto_str (session->session_type), session->session_state,
1661 vppcom_session_state_str (session->session_state));
1665 /* Connect to quic session specifics */
1666 session->transport.is_ip4 = parent_session->transport.is_ip4;
1667 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1668 session->transport.rmt_port = 0;
1669 session->parent_handle = parent_session->vpp_handle;
1671 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1672 session_handle, parent_session_handle, parent_session->vpp_handle);
1675 * Send connect request and wait for reply from vpp
1677 vcl_send_session_connect (wrk, session);
1678 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1679 vcm->cfg.session_timeout);
1681 session->listener_index = parent_session_index;
1682 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1684 parent_session->n_accepted_sessions++;
1686 session = vcl_session_get (wrk, session_index);
1687 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1688 session->vpp_handle, rv ? "failed" : "succeeded");
1694 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1696 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1700 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1703 vcl_worker_t *wrk = vcl_worker_get_current ();
1704 int n_read = 0, is_nonblocking;
1705 vcl_session_t *s = 0;
1706 svm_fifo_t *rx_fifo;
1707 svm_msg_q_msg_t msg;
1712 if (PREDICT_FALSE (!buf))
1713 return VPPCOM_EINVAL;
1715 s = vcl_session_get_w_handle (wrk, session_handle);
1716 if (PREDICT_FALSE (!s || s->is_vep))
1717 return VPPCOM_EBADFD;
1719 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1721 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1722 s->session_index, s->vpp_handle, s->session_state,
1723 vppcom_session_state_str (s->session_state));
1724 return vcl_session_closed_error (s);
1727 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1728 is_ct = vcl_session_is_ct (s);
1729 mq = wrk->app_event_queue;
1730 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1733 if (svm_fifo_is_empty_cons (rx_fifo))
1737 if (vcl_session_is_closing (s))
1738 return vcl_session_closing_error (s);
1739 svm_fifo_unset_event (s->rx_fifo);
1740 return VPPCOM_EWOULDBLOCK;
1742 while (svm_fifo_is_empty_cons (rx_fifo))
1744 if (vcl_session_is_closing (s))
1745 return vcl_session_closing_error (s);
1747 svm_fifo_unset_event (s->rx_fifo);
1748 svm_msg_q_lock (mq);
1749 if (svm_msg_q_is_empty (mq))
1750 svm_msg_q_wait (mq);
1752 svm_msg_q_sub_w_lock (mq, &msg);
1753 e = svm_msg_q_msg_data (mq, &msg);
1754 svm_msg_q_unlock (mq);
1755 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1756 vcl_handle_mq_event (wrk, e);
1757 svm_msg_q_free_msg (mq, &msg);
1762 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1764 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1766 if (svm_fifo_is_empty_cons (rx_fifo))
1767 svm_fifo_unset_event (s->rx_fifo);
1769 /* Cut-through sessions might request tx notifications on rx fifos */
1770 if (PREDICT_FALSE (rx_fifo->want_deq_ntf))
1772 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1773 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1774 svm_fifo_reset_has_deq_ntf (s->rx_fifo);
1777 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1778 s->vpp_handle, n_read, rx_fifo);
1784 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1786 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1790 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1792 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1796 vppcom_session_read_segments (uint32_t session_handle,
1797 vppcom_data_segments_t ds)
1799 vcl_worker_t *wrk = vcl_worker_get_current ();
1800 int n_read = 0, is_nonblocking;
1801 vcl_session_t *s = 0;
1802 svm_fifo_t *rx_fifo;
1803 svm_msg_q_msg_t msg;
1808 s = vcl_session_get_w_handle (wrk, session_handle);
1809 if (PREDICT_FALSE (!s || s->is_vep))
1810 return VPPCOM_EBADFD;
1812 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1813 return vcl_session_closed_error (s);
1815 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1816 is_ct = vcl_session_is_ct (s);
1817 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1818 rx_fifo = s->rx_fifo;
1822 svm_fifo_unset_event (s->rx_fifo);
1824 if (svm_fifo_is_empty_cons (rx_fifo))
1828 svm_fifo_unset_event (rx_fifo);
1829 return VPPCOM_EWOULDBLOCK;
1831 while (svm_fifo_is_empty_cons (rx_fifo))
1833 if (vcl_session_is_closing (s))
1834 return vcl_session_closing_error (s);
1836 svm_fifo_unset_event (rx_fifo);
1837 svm_msg_q_lock (mq);
1838 if (svm_msg_q_is_empty (mq))
1839 svm_msg_q_wait (mq);
1841 svm_msg_q_sub_w_lock (mq, &msg);
1842 e = svm_msg_q_msg_data (mq, &msg);
1843 svm_msg_q_unlock (mq);
1844 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1845 vcl_handle_mq_event (wrk, e);
1846 svm_msg_q_free_msg (mq, &msg);
1850 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_seg_t *) ds);
1851 svm_fifo_unset_event (rx_fifo);
1857 vppcom_session_free_segments (uint32_t session_handle,
1858 vppcom_data_segments_t ds)
1860 vcl_worker_t *wrk = vcl_worker_get_current ();
1863 s = vcl_session_get_w_handle (wrk, session_handle);
1864 if (PREDICT_FALSE (!s || s->is_vep))
1867 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_seg_t *) ds);
1871 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
1873 u32 first_copy = clib_min (ds[0].len, max_bytes);
1874 clib_memcpy_fast (buf, ds[0].data, first_copy);
1875 if (first_copy < max_bytes)
1877 clib_memcpy_fast (buf + first_copy, ds[1].data,
1878 clib_min (ds[1].len, max_bytes - first_copy));
1884 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1886 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
1890 vppcom_session_write_inline (uint32_t session_handle, void *buf, size_t n,
1893 vcl_worker_t *wrk = vcl_worker_get_current ();
1894 int n_write, is_nonblocking;
1895 vcl_session_t *s = 0;
1896 session_evt_type_t et;
1897 svm_msg_q_msg_t msg;
1898 svm_fifo_t *tx_fifo;
1903 if (PREDICT_FALSE (!buf || n == 0))
1904 return VPPCOM_EINVAL;
1906 s = vcl_session_get_w_handle (wrk, session_handle);
1907 if (PREDICT_FALSE (!s))
1908 return VPPCOM_EBADFD;
1910 if (PREDICT_FALSE (s->is_vep))
1912 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
1913 " session!", s->session_index, s->vpp_handle);
1914 return VPPCOM_EBADFD;
1917 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1919 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
1920 s->session_index, s->vpp_handle, s->session_state,
1921 vppcom_session_state_str (s->session_state));
1922 return vcl_session_closed_error (s);;
1925 is_ct = vcl_session_is_ct (s);
1926 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
1927 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1929 mq = wrk->app_event_queue;
1930 if (svm_fifo_is_full_prod (tx_fifo))
1934 return VPPCOM_EWOULDBLOCK;
1936 while (svm_fifo_is_full_prod (tx_fifo))
1938 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
1939 if (vcl_session_is_closing (s))
1940 return vcl_session_closing_error (s);
1941 svm_msg_q_lock (mq);
1942 if (svm_msg_q_is_empty (mq))
1943 svm_msg_q_wait (mq);
1945 svm_msg_q_sub_w_lock (mq, &msg);
1946 e = svm_msg_q_msg_data (mq, &msg);
1947 svm_msg_q_unlock (mq);
1949 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
1950 vcl_handle_mq_event (wrk, e);
1951 svm_msg_q_free_msg (mq, &msg);
1955 et = SESSION_IO_EVT_TX;
1956 if (is_flush && !is_ct)
1957 et = SESSION_IO_EVT_TX_FLUSH;
1960 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
1961 s->vpp_evt_q, buf, n, et,
1962 0 /* do_evt */ , SVM_Q_WAIT);
1964 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
1965 0 /* do_evt */ , SVM_Q_WAIT);
1967 if (svm_fifo_set_event (s->tx_fifo))
1968 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
1971 ASSERT (n_write > 0);
1973 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
1974 s->vpp_handle, n_write);
1980 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
1982 return vppcom_session_write_inline (session_handle, buf, n,
1987 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
1989 return vppcom_session_write_inline (session_handle, buf, n,
1993 #define vcl_fifo_rx_evt_valid_or_break(_s) \
1994 if (PREDICT_FALSE (!_s->rx_fifo)) \
1996 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
1998 if (!vcl_session_is_ct (_s)) \
2000 svm_fifo_unset_event (_s->rx_fifo); \
2001 if (svm_fifo_is_empty (_s->rx_fifo)) \
2004 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2006 svm_fifo_unset_event (_s->ct_rx_fifo); \
2007 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2013 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2014 unsigned long n_bits, unsigned long *read_map,
2015 unsigned long *write_map,
2016 unsigned long *except_map, u32 * bits_set)
2018 session_disconnected_msg_t *disconnected_msg;
2019 session_connected_msg_t *connected_msg;
2020 vcl_session_t *session;
2023 switch (e->event_type)
2025 case SESSION_IO_EVT_RX:
2026 sid = e->session_index;
2027 session = vcl_session_get (wrk, sid);
2028 if (!session || !vcl_session_is_open (session))
2030 vcl_fifo_rx_evt_valid_or_break (session);
2031 if (sid < n_bits && read_map)
2033 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2037 case SESSION_IO_EVT_TX:
2038 sid = e->session_index;
2039 session = vcl_session_get (wrk, sid);
2040 if (!session || !vcl_session_is_open (session))
2042 if (sid < n_bits && write_map)
2044 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2048 case SESSION_CTRL_EVT_ACCEPTED:
2049 session = vcl_session_accepted (wrk,
2050 (session_accepted_msg_t *) e->data);
2053 sid = session->session_index;
2054 if (sid < n_bits && read_map)
2056 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2060 case SESSION_CTRL_EVT_CONNECTED:
2061 connected_msg = (session_connected_msg_t *) e->data;
2062 sid = vcl_session_connected_handler (wrk, connected_msg);
2063 if (sid == VCL_INVALID_SESSION_INDEX)
2065 if (sid < n_bits && write_map)
2067 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2071 case SESSION_CTRL_EVT_DISCONNECTED:
2072 disconnected_msg = (session_disconnected_msg_t *) e->data;
2073 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2076 sid = session->session_index;
2077 if (sid < n_bits && except_map)
2079 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2083 case SESSION_CTRL_EVT_RESET:
2084 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2085 if (sid < n_bits && except_map)
2087 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2091 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2092 vcl_session_unlisten_reply_handler (wrk, e->data);
2094 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2095 vcl_session_worker_update_reply_handler (wrk, e->data);
2097 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2098 vcl_session_req_worker_update_handler (wrk, e->data);
2101 clib_warning ("unhandled: %u", e->event_type);
2107 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2108 unsigned long n_bits, unsigned long *read_map,
2109 unsigned long *write_map, unsigned long *except_map,
2110 double time_to_wait, u32 * bits_set)
2112 svm_msg_q_msg_t *msg;
2116 svm_msg_q_lock (mq);
2117 if (svm_msg_q_is_empty (mq))
2121 svm_msg_q_unlock (mq);
2127 svm_msg_q_unlock (mq);
2130 else if (time_to_wait < 0)
2132 svm_msg_q_wait (mq);
2136 if (svm_msg_q_timedwait (mq, time_to_wait))
2138 svm_msg_q_unlock (mq);
2143 vcl_mq_dequeue_batch (wrk, mq, ~0);
2144 svm_msg_q_unlock (mq);
2146 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2148 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2149 e = svm_msg_q_msg_data (mq, msg);
2150 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2151 except_map, bits_set);
2152 svm_msg_q_free_msg (mq, msg);
2154 vec_reset_length (wrk->mq_msg_vector);
2155 vcl_handle_pending_wrk_updates (wrk);
2160 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2161 vcl_si_set * read_map, vcl_si_set * write_map,
2162 vcl_si_set * except_map, double time_to_wait,
2165 double wait = 0, start = 0;
2169 wait = time_to_wait;
2170 start = clib_time_now (&wrk->clib_time);
2175 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2176 write_map, except_map, wait, bits_set);
2182 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2190 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2191 vcl_si_set * read_map, vcl_si_set * write_map,
2192 vcl_si_set * except_map, double time_to_wait,
2195 vcl_mq_evt_conn_t *mqc;
2196 int __clib_unused n_read;
2200 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2201 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2202 vec_len (wrk->mq_events), time_to_wait);
2203 for (i = 0; i < n_mq_evts; i++)
2205 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2206 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2207 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2208 except_map, 0, bits_set);
2211 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2215 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2216 vcl_si_set * except_map, double time_to_wait)
2218 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2219 vcl_worker_t *wrk = vcl_worker_get_current ();
2220 vcl_session_t *session = 0;
2223 if (n_bits && read_map)
2225 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2226 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2227 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2228 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2230 if (n_bits && write_map)
2232 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2233 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2234 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2235 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2237 if (n_bits && except_map)
2239 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2240 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2241 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2242 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2252 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2253 if (!(session = vcl_session_get (wrk, sid)))
2255 if (except_map && sid < minbits)
2256 clib_bitmap_set_no_check (except_map, sid, 1);
2260 if (vcl_session_write_ready (session) > 0)
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 if (vcl_session_read_ready (session) > 0)
2283 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2291 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2293 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2294 read_map, write_map, except_map, &bits_set);
2296 vec_reset_length (wrk->unhandled_evts_vector);
2298 if (vcm->cfg.use_mq_eventfd)
2299 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2300 time_to_wait, &bits_set);
2302 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2303 time_to_wait, &bits_set);
2309 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2311 vcl_session_t *session;
2312 vppcom_epoll_t *vep;
2313 u32 sh = vep_handle;
2315 if (VPPCOM_DEBUG <= 2)
2318 session = vcl_session_get_w_handle (wrk, vep_handle);
2319 if (PREDICT_FALSE (!session))
2321 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2324 if (PREDICT_FALSE (!session->is_vep))
2326 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2329 vep = &session->vep;
2330 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2333 " is_vep_session = %u\n"
2334 " next_sh = 0x%x (%u)\n"
2335 "}\n", vep_handle, session->is_vep, session->is_vep_session,
2336 vep->next_sh, vep->next_sh);
2338 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2340 session = vcl_session_get_w_handle (wrk, sh);
2341 if (PREDICT_FALSE (!session))
2343 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2346 if (PREDICT_FALSE (session->is_vep))
2348 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2350 else if (PREDICT_FALSE (!session->is_vep_session))
2352 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2355 vep = &session->vep;
2356 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2357 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2358 sh, session->vep.vep_sh, vep_handle);
2359 if (session->is_vep_session)
2361 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2363 " next_sh = 0x%x (%u)\n"
2364 " prev_sh = 0x%x (%u)\n"
2365 " vep_sh = 0x%x (%u)\n"
2366 " ev.events = 0x%x\n"
2367 " ev.data.u64 = 0x%llx\n"
2370 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2371 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2372 vep->ev.data.u64, vep->et_mask);
2377 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2381 vppcom_epoll_create (void)
2383 vcl_worker_t *wrk = vcl_worker_get_current ();
2384 vcl_session_t *vep_session;
2386 vep_session = vcl_session_alloc (wrk);
2388 vep_session->is_vep = 1;
2389 vep_session->vep.vep_sh = ~0;
2390 vep_session->vep.next_sh = ~0;
2391 vep_session->vep.prev_sh = ~0;
2392 vep_session->vpp_handle = ~0;
2394 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2395 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2397 return vcl_session_handle (vep_session);
2401 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2402 struct epoll_event *event)
2404 vcl_worker_t *wrk = vcl_worker_get_current ();
2405 vcl_session_t *vep_session;
2406 vcl_session_t *session;
2409 if (vep_handle == session_handle)
2411 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2412 return VPPCOM_EINVAL;
2415 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2416 if (PREDICT_FALSE (!vep_session))
2418 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2419 return VPPCOM_EBADFD;
2421 if (PREDICT_FALSE (!vep_session->is_vep))
2423 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2424 return VPPCOM_EINVAL;
2427 ASSERT (vep_session->vep.vep_sh == ~0);
2428 ASSERT (vep_session->vep.prev_sh == ~0);
2430 session = vcl_session_get_w_handle (wrk, session_handle);
2431 if (PREDICT_FALSE (!session))
2433 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2434 return VPPCOM_EBADFD;
2436 if (PREDICT_FALSE (session->is_vep))
2438 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2439 return VPPCOM_EINVAL;
2445 if (PREDICT_FALSE (!event))
2447 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2448 return VPPCOM_EINVAL;
2450 if (vep_session->vep.next_sh != ~0)
2452 vcl_session_t *next_session;
2453 next_session = vcl_session_get_w_handle (wrk,
2454 vep_session->vep.next_sh);
2455 if (PREDICT_FALSE (!next_session))
2457 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2458 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2459 return VPPCOM_EBADFD;
2461 ASSERT (next_session->vep.prev_sh == vep_handle);
2462 next_session->vep.prev_sh = session_handle;
2464 session->vep.next_sh = vep_session->vep.next_sh;
2465 session->vep.prev_sh = vep_handle;
2466 session->vep.vep_sh = vep_handle;
2467 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2468 session->vep.ev = *event;
2469 session->is_vep = 0;
2470 session->is_vep_session = 1;
2471 vep_session->vep.next_sh = session_handle;
2473 if (session->tx_fifo)
2474 svm_fifo_add_want_deq_ntf (session->tx_fifo,
2475 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2477 /* Generate EPOLLOUT if tx fifo not full */
2478 if ((event->events & EPOLLOUT) &&
2479 (vcl_session_write_ready (session) > 0))
2481 session_event_t e = { 0 };
2482 e.event_type = SESSION_IO_EVT_TX;
2483 e.session_index = session->session_index;
2484 vec_add1 (wrk->unhandled_evts_vector, e);
2486 /* Generate EPOLLIN if rx fifo has data */
2487 if ((event->events & EPOLLIN) && (vcl_session_read_ready (session) > 0))
2489 session_event_t e = { 0 };
2490 e.event_type = SESSION_IO_EVT_RX;
2491 e.session_index = session->session_index;
2492 vec_add1 (wrk->unhandled_evts_vector, e);
2494 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2495 vep_handle, session_handle, event->events, event->data.u64);
2496 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2500 if (PREDICT_FALSE (!event))
2502 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2506 else if (PREDICT_FALSE (!session->is_vep_session))
2508 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2512 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2514 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2515 session_handle, session->vep.vep_sh, vep_handle);
2520 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2521 if ((event->events & EPOLLOUT) &&
2522 !(session->vep.ev.events & EPOLLOUT) &&
2523 (vcl_session_write_ready (session) > 0))
2525 session_event_t e = { 0 };
2526 e.event_type = SESSION_IO_EVT_TX;
2527 e.session_index = session->session_index;
2528 vec_add1 (wrk->unhandled_evts_vector, e);
2530 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2531 session->vep.ev = *event;
2532 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2533 vep_handle, session_handle, event->events, event->data.u64);
2537 if (PREDICT_FALSE (!session->is_vep_session))
2539 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2543 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2545 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2546 session_handle, session->vep.vep_sh, vep_handle);
2551 if (session->vep.prev_sh == vep_handle)
2552 vep_session->vep.next_sh = session->vep.next_sh;
2555 vcl_session_t *prev_session;
2556 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2557 if (PREDICT_FALSE (!prev_session))
2559 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2560 session->vep.prev_sh, session_handle);
2561 return VPPCOM_EBADFD;
2563 ASSERT (prev_session->vep.next_sh == session_handle);
2564 prev_session->vep.next_sh = session->vep.next_sh;
2566 if (session->vep.next_sh != ~0)
2568 vcl_session_t *next_session;
2569 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2570 if (PREDICT_FALSE (!next_session))
2572 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2573 session->vep.next_sh, session_handle);
2574 return VPPCOM_EBADFD;
2576 ASSERT (next_session->vep.prev_sh == session_handle);
2577 next_session->vep.prev_sh = session->vep.prev_sh;
2580 memset (&session->vep, 0, sizeof (session->vep));
2581 session->vep.next_sh = ~0;
2582 session->vep.prev_sh = ~0;
2583 session->vep.vep_sh = ~0;
2584 session->is_vep_session = 0;
2586 if (session->tx_fifo)
2587 svm_fifo_del_want_deq_ntf (session->tx_fifo, SVM_FIFO_NO_DEQ_NOTIF);
2589 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2591 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2595 VDBG (0, "Invalid operation (%d)!", op);
2599 vep_verify_epoll_chain (wrk, vep_handle);
2606 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2607 struct epoll_event *events, u32 * num_ev)
2609 session_disconnected_msg_t *disconnected_msg;
2610 session_connected_msg_t *connected_msg;
2611 u32 sid = ~0, session_events;
2612 u64 session_evt_data = ~0;
2613 vcl_session_t *session;
2616 switch (e->event_type)
2618 case SESSION_IO_EVT_RX:
2619 sid = e->session_index;
2620 if (!(session = vcl_session_get (wrk, sid)))
2622 vcl_fifo_rx_evt_valid_or_break (session);
2623 session_events = session->vep.ev.events;
2624 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2627 events[*num_ev].events |= EPOLLIN;
2628 session_evt_data = session->vep.ev.data.u64;
2629 session->has_rx_evt = 1;
2631 case SESSION_IO_EVT_TX:
2632 sid = e->session_index;
2633 if (!(session = vcl_session_get (wrk, sid)))
2635 session_events = session->vep.ev.events;
2636 if (!(EPOLLOUT & session_events))
2639 events[*num_ev].events |= EPOLLOUT;
2640 session_evt_data = session->vep.ev.data.u64;
2641 svm_fifo_reset_has_deq_ntf (session->tx_fifo);
2643 case SESSION_CTRL_EVT_ACCEPTED:
2644 session = vcl_session_accepted (wrk,
2645 (session_accepted_msg_t *) e->data);
2649 session_events = session->vep.ev.events;
2650 if (!(EPOLLIN & session_events))
2654 events[*num_ev].events |= EPOLLIN;
2655 session_evt_data = session->vep.ev.data.u64;
2657 case SESSION_CTRL_EVT_CONNECTED:
2658 connected_msg = (session_connected_msg_t *) e->data;
2659 sid = vcl_session_connected_handler (wrk, connected_msg);
2660 /* Generate EPOLLOUT because there's no connected event */
2661 if (!(session = vcl_session_get (wrk, sid)))
2663 session_events = session->vep.ev.events;
2664 if (!(EPOLLOUT & session_events))
2667 events[*num_ev].events |= EPOLLOUT;
2668 session_evt_data = session->vep.ev.data.u64;
2669 if (session->session_state & STATE_FAILED)
2670 events[*num_ev].events |= EPOLLHUP;
2672 case SESSION_CTRL_EVT_DISCONNECTED:
2673 disconnected_msg = (session_disconnected_msg_t *) e->data;
2674 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2677 session_events = session->vep.ev.events;
2679 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2680 session_evt_data = session->vep.ev.data.u64;
2682 case SESSION_CTRL_EVT_RESET:
2683 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2684 if (!(session = vcl_session_get (wrk, sid)))
2686 session_events = session->vep.ev.events;
2688 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2689 session_evt_data = session->vep.ev.data.u64;
2691 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2692 vcl_session_unlisten_reply_handler (wrk, e->data);
2694 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2695 vcl_session_req_worker_update_handler (wrk, e->data);
2697 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2698 vcl_session_worker_update_reply_handler (wrk, e->data);
2701 VDBG (0, "unhandled: %u", e->event_type);
2707 events[*num_ev].data.u64 = session_evt_data;
2708 if (EPOLLONESHOT & session_events)
2710 session = vcl_session_get (wrk, sid);
2711 session->vep.ev.events = 0;
2718 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2719 struct epoll_event *events, u32 maxevents,
2720 double wait_for_time, u32 * num_ev)
2722 svm_msg_q_msg_t *msg;
2726 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2727 goto handle_dequeued;
2729 svm_msg_q_lock (mq);
2730 if (svm_msg_q_is_empty (mq))
2734 svm_msg_q_unlock (mq);
2737 else if (wait_for_time < 0)
2739 svm_msg_q_wait (mq);
2743 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2745 svm_msg_q_unlock (mq);
2750 ASSERT (maxevents > *num_ev);
2751 vcl_mq_dequeue_batch (wrk, mq, maxevents - *num_ev);
2752 svm_msg_q_unlock (mq);
2755 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2757 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2758 e = svm_msg_q_msg_data (mq, msg);
2759 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2760 svm_msg_q_free_msg (mq, msg);
2762 vec_reset_length (wrk->mq_msg_vector);
2763 vcl_handle_pending_wrk_updates (wrk);
2768 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2769 int maxevents, u32 n_evts, double wait_for_time)
2771 double wait = 0, start = 0, now;
2775 wait = wait_for_time;
2776 start = clib_time_now (&wrk->clib_time);
2781 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2788 now = clib_time_now (&wrk->clib_time);
2789 wait -= now - start;
2798 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2799 int maxevents, u32 n_evts, double wait_for_time)
2801 vcl_mq_evt_conn_t *mqc;
2802 int __clib_unused n_read;
2806 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2808 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2809 vec_len (wrk->mq_events), wait_for_time);
2810 for (i = 0; i < n_mq_evts; i++)
2812 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2813 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2814 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
2816 if (!n_evts && n_mq_evts > 0)
2819 return (int) n_evts;
2823 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
2824 int maxevents, double wait_for_time)
2826 vcl_worker_t *wrk = vcl_worker_get_current ();
2827 vcl_session_t *vep_session;
2831 if (PREDICT_FALSE (maxevents <= 0))
2833 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
2834 return VPPCOM_EINVAL;
2837 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2839 return VPPCOM_EBADFD;
2841 if (PREDICT_FALSE (!vep_session->is_vep))
2843 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
2844 return VPPCOM_EINVAL;
2847 memset (events, 0, sizeof (*events) * maxevents);
2849 if (vec_len (wrk->unhandled_evts_vector))
2851 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2853 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
2855 if (n_evts == maxevents)
2857 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
2861 vec_reset_length (wrk->unhandled_evts_vector);
2864 if (vcm->cfg.use_mq_eventfd)
2865 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
2868 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
2873 vppcom_session_attr (uint32_t session_handle, uint32_t op,
2874 void *buffer, uint32_t * buflen)
2876 vcl_worker_t *wrk = vcl_worker_get_current ();
2877 vcl_session_t *session;
2879 u32 *flags = buffer, tmp_flags = 0;
2880 vppcom_endpt_t *ep = buffer;
2882 session = vcl_session_get_w_handle (wrk, session_handle);
2884 return VPPCOM_EBADFD;
2888 case VPPCOM_ATTR_GET_NREAD:
2889 rv = vcl_session_read_ready (session);
2890 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
2894 case VPPCOM_ATTR_GET_NWRITE:
2895 rv = vcl_session_write_ready (session);
2896 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
2900 case VPPCOM_ATTR_GET_FLAGS:
2901 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
2903 *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr,
2904 VCL_SESS_ATTR_NONBLOCK));
2905 *buflen = sizeof (*flags);
2906 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
2907 "is_nonblocking = %u", session_handle, *flags,
2908 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2914 case VPPCOM_ATTR_SET_FLAGS:
2915 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
2917 if (*flags & O_NONBLOCK)
2918 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
2920 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
2922 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
2923 " is_nonblocking = %u", session_handle, *flags,
2924 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2930 case VPPCOM_ATTR_GET_PEER_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.rmt_port;
2936 if (session->transport.is_ip4)
2937 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
2938 sizeof (ip4_address_t));
2940 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
2941 sizeof (ip6_address_t));
2942 *buflen = sizeof (*ep);
2943 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
2944 "addr = %U, port %u", session_handle, ep->is_ip4,
2945 format_ip46_address, &session->transport.rmt_ip,
2946 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2947 clib_net_to_host_u16 (ep->port));
2953 case VPPCOM_ATTR_GET_LCL_ADDR:
2954 if (PREDICT_TRUE (buffer && buflen &&
2955 (*buflen >= sizeof (*ep)) && ep->ip))
2957 ep->is_ip4 = session->transport.is_ip4;
2958 ep->port = session->transport.lcl_port;
2959 if (session->transport.is_ip4)
2960 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
2961 sizeof (ip4_address_t));
2963 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
2964 sizeof (ip6_address_t));
2965 *buflen = sizeof (*ep);
2966 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
2967 " port %d", session_handle, ep->is_ip4, format_ip46_address,
2968 &session->transport.lcl_ip,
2969 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2970 clib_net_to_host_u16 (ep->port));
2976 case VPPCOM_ATTR_SET_LCL_ADDR:
2977 if (PREDICT_TRUE (buffer && buflen &&
2978 (*buflen >= sizeof (*ep)) && ep->ip))
2980 session->transport.is_ip4 = ep->is_ip4;
2981 session->transport.lcl_port = ep->port;
2982 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
2983 *buflen = sizeof (*ep);
2984 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
2985 " port %d", session_handle, ep->is_ip4, format_ip46_address,
2986 &session->transport.lcl_ip,
2987 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2988 clib_net_to_host_u16 (ep->port));
2994 case VPPCOM_ATTR_GET_LIBC_EPFD:
2995 rv = session->libc_epfd;
2996 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
2999 case VPPCOM_ATTR_SET_LIBC_EPFD:
3000 if (PREDICT_TRUE (buffer && buflen &&
3001 (*buflen == sizeof (session->libc_epfd))))
3003 session->libc_epfd = *(int *) buffer;
3004 *buflen = sizeof (session->libc_epfd);
3006 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3007 session->libc_epfd, *buflen);
3013 case VPPCOM_ATTR_GET_PROTOCOL:
3014 if (buffer && buflen && (*buflen >= sizeof (int)))
3016 *(int *) buffer = session->session_type;
3017 *buflen = sizeof (int);
3019 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3020 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3026 case VPPCOM_ATTR_GET_LISTEN:
3027 if (buffer && buflen && (*buflen >= sizeof (int)))
3029 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3030 VCL_SESS_ATTR_LISTEN);
3031 *buflen = sizeof (int);
3033 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3040 case VPPCOM_ATTR_GET_ERROR:
3041 if (buffer && buflen && (*buflen >= sizeof (int)))
3043 *(int *) buffer = 0;
3044 *buflen = sizeof (int);
3046 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3047 *(int *) buffer, *buflen);
3053 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3054 if (buffer && buflen && (*buflen >= sizeof (u32)))
3058 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3059 session->tx_fifo ? session->tx_fifo->nitems :
3060 vcm->cfg.tx_fifo_size);
3061 *buflen = sizeof (u32);
3063 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3064 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3071 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3072 if (buffer && buflen && (*buflen == sizeof (u32)))
3075 session->sndbuf_size = *(u32 *) buffer;
3076 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3077 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3084 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3085 if (buffer && buflen && (*buflen >= sizeof (u32)))
3089 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3090 session->rx_fifo ? session->rx_fifo->nitems :
3091 vcm->cfg.rx_fifo_size);
3092 *buflen = sizeof (u32);
3094 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3095 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3101 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3102 if (buffer && buflen && (*buflen == sizeof (u32)))
3105 session->rcvbuf_size = *(u32 *) buffer;
3106 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3107 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3114 case VPPCOM_ATTR_GET_REUSEADDR:
3115 if (buffer && buflen && (*buflen >= sizeof (int)))
3118 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3119 VCL_SESS_ATTR_REUSEADDR);
3120 *buflen = sizeof (int);
3122 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3123 *(int *) buffer, *buflen);
3129 case VPPCOM_ATTR_SET_REUSEADDR:
3130 if (buffer && buflen && (*buflen == sizeof (int)) &&
3131 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3134 if (*(int *) buffer)
3135 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
3137 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
3139 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3140 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEADDR),
3147 case VPPCOM_ATTR_GET_REUSEPORT:
3148 if (buffer && buflen && (*buflen >= sizeof (int)))
3151 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3152 VCL_SESS_ATTR_REUSEPORT);
3153 *buflen = sizeof (int);
3155 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3156 *(int *) buffer, *buflen);
3162 case VPPCOM_ATTR_SET_REUSEPORT:
3163 if (buffer && buflen && (*buflen == sizeof (int)) &&
3164 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3167 if (*(int *) buffer)
3168 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
3170 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
3172 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3173 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEPORT),
3180 case VPPCOM_ATTR_GET_BROADCAST:
3181 if (buffer && buflen && (*buflen >= sizeof (int)))
3184 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3185 VCL_SESS_ATTR_BROADCAST);
3186 *buflen = sizeof (int);
3188 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3189 *(int *) buffer, *buflen);
3195 case VPPCOM_ATTR_SET_BROADCAST:
3196 if (buffer && buflen && (*buflen == sizeof (int)))
3199 if (*(int *) buffer)
3200 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
3202 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
3204 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3205 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_BROADCAST),
3212 case VPPCOM_ATTR_GET_V6ONLY:
3213 if (buffer && buflen && (*buflen >= sizeof (int)))
3216 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3217 VCL_SESS_ATTR_V6ONLY);
3218 *buflen = sizeof (int);
3220 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3221 *(int *) buffer, *buflen);
3227 case VPPCOM_ATTR_SET_V6ONLY:
3228 if (buffer && buflen && (*buflen == sizeof (int)))
3231 if (*(int *) buffer)
3232 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
3234 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
3236 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3237 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_V6ONLY),
3244 case VPPCOM_ATTR_GET_KEEPALIVE:
3245 if (buffer && buflen && (*buflen >= sizeof (int)))
3248 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3249 VCL_SESS_ATTR_KEEPALIVE);
3250 *buflen = sizeof (int);
3252 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3253 *(int *) buffer, *buflen);
3259 case VPPCOM_ATTR_SET_KEEPALIVE:
3260 if (buffer && buflen && (*buflen == sizeof (int)))
3263 if (*(int *) buffer)
3264 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3266 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3268 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3269 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_KEEPALIVE),
3276 case VPPCOM_ATTR_GET_TCP_NODELAY:
3277 if (buffer && buflen && (*buflen >= sizeof (int)))
3280 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3281 VCL_SESS_ATTR_TCP_NODELAY);
3282 *buflen = sizeof (int);
3284 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3285 *(int *) buffer, *buflen);
3291 case VPPCOM_ATTR_SET_TCP_NODELAY:
3292 if (buffer && buflen && (*buflen == sizeof (int)))
3295 if (*(int *) buffer)
3296 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3298 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3300 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3301 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_NODELAY),
3308 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3309 if (buffer && buflen && (*buflen >= sizeof (int)))
3312 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3313 VCL_SESS_ATTR_TCP_KEEPIDLE);
3314 *buflen = sizeof (int);
3316 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3317 *(int *) buffer, *buflen);
3323 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3324 if (buffer && buflen && (*buflen == sizeof (int)))
3327 if (*(int *) buffer)
3328 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3330 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3332 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3333 VCL_SESS_ATTR_TEST (session->attr,
3334 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3340 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3341 if (buffer && buflen && (*buflen >= sizeof (int)))
3344 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3345 VCL_SESS_ATTR_TCP_KEEPINTVL);
3346 *buflen = sizeof (int);
3348 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3349 *(int *) buffer, *buflen);
3355 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3356 if (buffer && buflen && (*buflen == sizeof (int)))
3359 if (*(int *) buffer)
3360 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3362 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3364 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3365 VCL_SESS_ATTR_TEST (session->attr,
3366 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3372 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3373 if (buffer && buflen && (*buflen >= sizeof (u32)))
3376 *(u32 *) buffer = session->user_mss;
3377 *buflen = sizeof (int);
3379 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3380 *(int *) buffer, *buflen);
3386 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3387 if (buffer && buflen && (*buflen == sizeof (u32)))
3390 session->user_mss = *(u32 *) buffer;
3392 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3393 session->user_mss, *buflen);
3399 case VPPCOM_ATTR_SET_SHUT:
3400 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3401 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3402 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3403 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3406 case VPPCOM_ATTR_GET_SHUT:
3407 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3409 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3412 *(int *) buffer = SHUT_RD;
3413 else if (tmp_flags == 2)
3414 *(int *) buffer = SHUT_WR;
3415 else if (tmp_flags == 3)
3416 *(int *) buffer = SHUT_RDWR;
3417 *buflen = sizeof (int);
3428 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3429 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3431 vcl_worker_t *wrk = vcl_worker_get_current ();
3433 vcl_session_t *session = 0;
3437 session = vcl_session_get_w_handle (wrk, session_handle);
3438 if (PREDICT_FALSE (!session))
3440 VDBG (0, "sh 0x%llx is closed!", session_handle);
3441 return VPPCOM_EBADFD;
3443 ep->is_ip4 = session->transport.is_ip4;
3444 ep->port = session->transport.rmt_port;
3448 rv = vppcom_session_read (session_handle, buffer, buflen);
3449 else if (flags & MSG_PEEK)
3450 rv = vppcom_session_peek (session_handle, buffer, buflen);
3453 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3454 return VPPCOM_EAFNOSUPPORT;
3459 if (session->transport.is_ip4)
3460 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3461 sizeof (ip4_address_t));
3463 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3464 sizeof (ip6_address_t));
3471 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3472 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3475 return VPPCOM_EINVAL;
3480 return VPPCOM_EINVAL;
3485 // TBD check the flags and do the right thing
3486 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3489 return (vppcom_session_write_inline (session_handle, buffer, buflen, 1));
3493 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3495 vcl_worker_t *wrk = vcl_worker_get_current ();
3496 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3497 u32 i, keep_trying = 1;
3498 svm_msg_q_msg_t msg;
3502 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3505 return VPPCOM_EFAULT;
3509 vcl_session_t *session;
3511 /* Dequeue all events and drop all unhandled io events */
3512 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3514 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3515 vcl_handle_mq_event (wrk, e);
3516 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3518 vec_reset_length (wrk->unhandled_evts_vector);
3520 for (i = 0; i < n_sids; i++)
3522 session = vcl_session_get (wrk, vp[i].sh);
3525 vp[i].revents = POLLHUP;
3532 if (POLLIN & vp[i].events)
3534 rv = vcl_session_read_ready (session);
3537 vp[i].revents |= POLLIN;
3544 case VPPCOM_ECONNRESET:
3545 vp[i].revents = POLLHUP;
3549 vp[i].revents = POLLERR;
3556 if (POLLOUT & vp[i].events)
3558 rv = vcl_session_write_ready (session);
3561 vp[i].revents |= POLLOUT;
3568 case VPPCOM_ECONNRESET:
3569 vp[i].revents = POLLHUP;
3573 vp[i].revents = POLLERR;
3580 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3582 vp[i].revents = POLLNVAL;
3586 if (wait_for_time != -1)
3587 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3589 while ((num_ev == 0) && keep_trying);
3595 vppcom_mq_epoll_fd (void)
3597 vcl_worker_t *wrk = vcl_worker_get_current ();
3598 return wrk->mqs_epfd;
3602 vppcom_session_index (vcl_session_handle_t session_handle)
3604 return session_handle & 0xFFFFFF;
3608 vppcom_session_worker (vcl_session_handle_t session_handle)
3610 return session_handle >> 24;
3614 vppcom_worker_register (void)
3616 if (!vcl_worker_alloc_and_init ())
3617 return VPPCOM_EEXIST;
3619 if (vcl_worker_set_bapi ())
3620 return VPPCOM_EEXIST;
3622 if (vcl_worker_register_with_vpp ())
3623 return VPPCOM_EEXIST;
3629 vppcom_worker_unregister (void)
3631 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3632 vcl_set_worker_index (~0);
3636 vppcom_worker_index (void)
3638 return vcl_get_worker_index ();
3642 vppcom_worker_mqs_epfd (void)
3644 vcl_worker_t *wrk = vcl_worker_get_current ();
3645 if (!vcm->cfg.use_mq_eventfd)
3647 return wrk->mqs_epfd;
3651 vppcom_session_is_connectable_listener (uint32_t session_handle)
3653 vcl_session_t *session;
3654 vcl_worker_t *wrk = vcl_worker_get_current ();
3655 session = vcl_session_get_w_handle (wrk, session_handle);
3657 return VPPCOM_EBADFD;
3658 return vcl_session_is_connectable_listener (wrk, session);
3662 vppcom_session_listener (uint32_t session_handle)
3664 vcl_worker_t *wrk = vcl_worker_get_current ();
3665 vcl_session_t *listen_session, *session;
3666 session = vcl_session_get_w_handle (wrk, session_handle);
3668 return VPPCOM_EBADFD;
3669 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3670 return VPPCOM_EBADFD;
3671 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3672 if (!listen_session)
3673 return VPPCOM_EBADFD;
3674 return vcl_session_handle (listen_session);
3678 vppcom_session_n_accepted (uint32_t session_handle)
3680 vcl_worker_t *wrk = vcl_worker_get_current ();
3681 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3683 return VPPCOM_EBADFD;
3684 return session->n_accepted_sessions;
3688 * fd.io coding-style-patch-verification: ON
3691 * eval: (c-set-style "gnu")